JP7662238B2 - Crushing Equipment - Google Patents

Description

The present invention relates to a grinding device, and in particular to a grinding device for grinding solids contained in a liquid to prevent clogging.

When cultivating agricultural crops and flowers, fertilizer is sprayed onto fields, greenhouses, etc. along with water. At this time, for reasons such as spraying efficiency, the fertilizer is mixed with water to make it fluid, and then sprayed from a sprinkler. Here, the fertilizer is dissolved in water beforehand, or crushed into a size smaller than the holes in the sprinkler nozzle (shower head). If this is not done, clogging will occur on the sprinkler side, which will not only reduce the efficiency of watering and fertilization, but may also cause the sprinkler to break down.

Therefore, after dissolving the fertilizer in water, it is necessary to crush it to a level that does not cause problems when watering. For example, a liquid fertilizer raw material manufacturing device has been proposed that includes a cylindrical body, an inverted truncated cone-shaped lower part that continues to the cylindrical body, a bottom screen that forms the bottom surface of the inverted truncated cone-shaped lower part, and a horizontal rotary cutter that is installed directly above the screen (see Patent Document 1).

The device referenced in Patent Document 1 has improved crushing efficiency. However, since this device is used to crush food waste with the assumption that it will be used to produce fertilizer, the degree of crushing is coarse. Therefore, when taking into consideration the watering of agricultural crops and flowers during cultivation and the application of liquid fertilizer, the device in Patent Document 1 is not fully capable.

JP 2001-220275 A

The present invention has been made in consideration of the above points, and provides a crushing device that can be used for watering agricultural crops and flowers during cultivation and for applying liquid fertilizer, and that crushes solid granules of fertilizer to prevent clogging of the sprinkler.

That is, the crushing device of the embodiment is a crushing device that crushes solids contained in a liquid to be treated, and includes an inner container portion having an injection opening through which the liquid to be treated is injected, a crushing portion into which the liquid to be treated stored in the inner container portion flows to crush the solids contained in the liquid to be treated, and an outer container portion that covers the bottom and side portions of the inner container portion and houses the crushing portion. The crushing portion includes a bottom ring member that is connected to the bottom of the outer container portion of the outer container portion, an upper ring member that is disposed above the bottom ring member and connected to the bottom of the inner container portion, and a middle ring member that is disposed between the upper ring member and the bottom ring member and slides against the upper ring member and the bottom ring member. When the upper ring member rotates and the middle ring member slides against the upper ring member and the bottom ring member, the solids contained in the liquid to be treated penetrate into the gap between the upper ring member and the middle ring member and the gap between the bottom ring member and the middle ring member, and are crushed by the pressure of the upper ring member, the middle ring member, and the bottom ring member.

The crushing device of the embodiment is a crushing device that crushes solids contained in a liquid to be treated, and includes an inner container portion having an injection opening through which the liquid to be treated is injected, a crushing portion into which the liquid to be treated stored in the inner container portion flows and crushes the solids contained in the liquid to be treated, and an outer container portion that covers the bottom and side portions of the inner container portion and houses the crushing portion. The crushing portion includes a bottom ring member that is connected to the bottom of the outer container portion of the outer container portion, and an upper ring member that is disposed above the bottom ring member, abuts against the bottom ring member, and is connected to the inner bottom of the inner container portion. When the upper ring member rotates and slides against the bottom ring member, the solids contained in the liquid to be treated penetrate into the gap between the upper ring member and the bottom ring member and are crushed by the pressure between the upper ring member and the bottom ring member.

Furthermore, in the crushing device, the upper ring member may have an upper ring inclined portion that becomes thinner toward the inside of the ring, and the bottom ring member may have a bottom ring inclined portion that becomes thinner toward the inside of the ring.

Furthermore, in the crushing device, the middle ring member may have a middle ring inclined portion that becomes thinner toward the inside of the ring.

Furthermore, in the crushing device, the middle ring member may be provided with a rolling element and a housing hole portion for housing the rolling element.

Furthermore, in the crushing device, the upper ring member may be rotated by the rotation of the inner container portion.

Furthermore, in the crushing device, the outer container section may be provided with a motor that rotates the inner container section, and a pinion that is rotated by the motor, and the inner container section may be provided with a flange gear section, and the flange gear section and the pinion may be meshed together, so that the inner container section is rotated by driving the motor.

The crushing device may further include a guide ring member that is disposed directly above the crushing section, connects the bottom of the inner container section to the upper ring member, and guides the liquid to be treated that is injected into the inner container section to the crushing section.

Furthermore, in the crushing device, a bottom flange having a filtration section for filtering the liquid to be treated that has passed through the crushing section may be provided at the bottom of the inner container section. Also , in the crushing device, a vibration section may be provided at the outer container section immediately below the crushing section.

Furthermore, in the crushing device, the upper ring member may be provided with a weight member. Also, in the crushing device, the crushing groove portion may be formed in the upper ring member, or the crushing groove portion may be formed in the middle ring member.

The crushing device of the present invention is a crushing device for crushing solids contained in a liquid to be treated, and is provided with an inner container portion having an injection opening through which the liquid to be treated is injected, a crushing portion into which the liquid to be treated stored in the inner container portion flows to crush the solids contained in the liquid to be treated, and an outer container portion that covers the bottom and side portions of the inner container portion and houses the crushing portion, and the crushing portion comprises a bottom ring member that is connected to the bottom of the outer container portion of the outer container portion, an upper ring member that is disposed above the bottom ring member and connected to the bottom of the inner container portion, and a joint between the upper ring member and the bottom ring portion. The device is equipped with a middle ring member that is disposed between the material and slides against the upper and bottom ring members, and when the upper ring member rotates and the middle ring member slides against the upper and bottom ring members, the solids contained in the liquid being treated penetrate into the gap between the upper and middle ring members and the gap between the bottom and middle ring members and are crushed by the pressure of the upper, middle, and bottom ring members, making it suitable for watering crops and flowers and for applying liquid fertilizer, and crushing the solid granules of fertilizer to prevent clogging of the sprinkler.

The crushing device of the present invention is a crushing device that crushes solids contained in a liquid to be treated, and includes an inner container portion having an injection opening through which the liquid to be treated is injected, a crushing portion into which the liquid to be treated stored in the inner container portion flows and crushes the solids contained in the liquid to be treated, and an outer container portion that covers the bottom and side portions of the inner container portion and houses the crushing portion. The crushing portion includes a bottom ring member that is connected to the bottom of the outer container portion of the outer container portion, and an upper ring member that is disposed above the bottom ring member and abuts against the bottom ring member and is connected to the inner bottom portion of the inner container portion. When the upper ring member rotates and slides against the bottom ring member, the solids contained in the liquid to be treated penetrate into the gap between the upper ring member and the bottom ring member and are crushed by the pressure between the upper ring member and the bottom ring member. Similarly, the crushing device can be used for watering agricultural crops and flowers during cultivation and for fertilizing with liquid fertilizer, and can crush solid granules of fertilizer to prevent clogging of the sprinkler.

FIG. 2 is a side view of the crushing device according to the embodiment. FIG. FIG. FIG. 4 is a partially enlarged cross-sectional view of the bottom part of the inner container. FIG. 3 is a partially enlarged cross-sectional view of the crushing section. FIG. 4 is a partially enlarged cross-sectional view of the vicinity of a bottom flange portion at the bottom of the inner container. FIG. 11 is an enlarged cross-sectional view of another embodiment of the crushing unit. 13 is a partially enlarged cross-sectional view of the bottom part of the inner container part with an increased thickness of the upper ring member. FIG. 13 is a partially enlarged cross-sectional view of the bottom part of the inner container part where the weight member is overlapped on the upper ring member. FIG. FIG. 11 is a partially enlarged cross-sectional view of a crushing section in which crushing grooves are formed in an upper ring member and a bottom ring member.

When organic fertilizer is mixed and dissolved in water to prepare liquid fertilizer, the water-soluble components dissolve quickly, but the solid components of the organic fertilizer, such as rotten tree branches and leaves, and even food waste, do not dissolve and remain in the liquid. Even in the case of chemical fertilizers, the components of the chemical fertilizer may remain undissolved depending on the water temperature. Recently, when cultivating crops and flowers, liquid fertilizer is used for fertilization in addition to watering. In this case, a sprinkler for watering is also used for fertilizing the liquid fertilizer. In this case, if the undissolved solid components of the organic fertilizer and chemical fertilizer are circulated directly through an irrigation hose, clogging will occur at the sprinkler nozzle (shower head). Of course, it is possible to place a mesh or filter in the flow path to filter out the undissolved solid components.

However, when liquid fertilizer passes through the mesh and filter, pressure is required to deliver the liquid. This requires separate equipment such as a pump for pressure delivery and a tank for storage, as well as piping that can withstand the pressure. In this embodiment, the crushing device crushes the prepared liquid fertilizer to a size that will not cause clogging before it is circulated through the irrigation hose, thereby preventing clogging in the sprinkler and eliminating the need to install new equipment such as pumps and piping. The crushing device of the embodiment also reduces the installation burden on existing sprinkler equipment, making it easier to introduce.

The overall configuration of the pulverizing device 1 of the embodiment will be described using the side view of Figure 1 and the exploded perspective view of Figure 2. The pulverizing device 1 is a device that treats the liquid to be treated, which is the liquid fertilizer in which the above-mentioned organic fertilizer is dissolved and the liquid fertilizer in which the chemical fertilizer is dissolved, to a size that does not cause clogging. Before passing through the pulverizing device 1, the liquid to be treated contains solids from the organic fertilizer and chemical fertilizer that could not be dissolved.

It is equipped with an inner container section 10 into which the liquid to be treated is poured, and an outer container section 50 that houses the inner container section 10, an outer frame section 16 is disposed above the outer container section 50, and a crushing section 30 is provided below the inner container section 10 (see Figure 2).

The inner container portion 10 has an injection opening 11 through which the liquid to be treated is injected. In this embodiment, a cylindrical fitting portion 17 is connected to the injection opening 11 of the inner container portion 10. An upper flange portion 18 is provided around the periphery (outer surface) of this fitting portion 17, and a flange gear portion 19 is formed on the circumferential portion of the upper flange portion 18. In other words, the inner container portion 10 in this embodiment is rotatable inside the outer container portion 50.

In the crushing device 1, the liquid to be treated is injected into the inner container 10 through the injection opening 11. The inner container 10 has a cylindrical shape with a bottom 12 and a side surface 13, and the liquid to be treated is stored in a storage section 10i (see Figures 4 and 6) surrounded by the side surface 13 of the inner container 10. The bottom 12 of the inner container 10 is provided with a bottom flange section 46.

The outer container part 50 covers the bottom part 12 and the side part 13 of the inner container part 10 and houses the crushing part 30. In the crushing device 1 of the embodiment, a drain pipe 56 is connected to the outer container bottom part 52 below the outer container body part 53 of the outer container part 50, and the liquid to be treated that has been crushed is discharged from the drain pipe 56 to the outside of the crushing device 1. In addition, a vibration part 60 is provided on the outer container bottom part 52 of the outer container body part 53. A motor 55 and a pinion 59 are provided near the outer container opening part 51 of the outer container body part 53. The vibration part 60 and the motor 55 will be described later.

As can be seen from the exploded perspective view of FIG. 3, the crushing section 30 is composed of a combination of multiple ring members. The crushing section 30 is made up of three stacked ring members, an upper ring member 33, a middle ring member 32, and a bottom ring member 31, from the top. By stacking and rotating these three ring members, the solid matter is crushed by a grinding action that mimics that of a mortar. In the illustrated embodiment, the crushing section 30 is further combined with an induction ring member 20. An inclined surface portion 21 is formed on the induction ring member 20, and the liquid to be treated is guided through the inclined surface portion 21 to the central opening portion of the three ring members, the upper ring member 33, the middle ring member 32, and the bottom ring member 31.

The bottom ring member 31 is connected to the outer container bottom 52 of the outer container part 50. The upper ring member 33 is disposed above the bottom ring member 31 and is connected to the bottom 12 of the inner container part 10. The middle ring member 32 is disposed between the upper ring member 33 and the bottom ring member 31 and slides relative to the upper ring member 33 and the bottom ring member 31. Thus, the bottom ring member 31 is a fixed ring member fixed to the outer container part 50 of the crushing device 1, and the upper ring member 33 is a rotating ring member connected to the bottom 12 of the inner container part 10 via the induction ring member 20. Furthermore, the middle ring member 32 is rotatable following the rotation of the upper ring member 33.

In addition, the middle ring member 32 in the illustrated embodiment has a roller bearing configuration (see FIG. 3). Specifically, it is provided with a plurality of cylindrical (alternatively spherical (steel ball) or truncated cone) rolling elements 25 (rollers for bearings, bearing rollers), and the rolling elements 25 are accommodated in accommodation holes 26 formed radially in the middle ring member 32. As shown in the figure, a groove portion 38 for the rolling elements 25 to roll is formed on the upper surface of the bottom ring member 31, and the movement range of the rolling elements 25 is restricted by the groove portion 38 so that the middle ring member 32 does not shift out of position from the bottom ring member 31.

When the inner container 10 rotates, the upper ring member 33 connected to the induction ring member 20 also rotates. Here, the middle ring member 32 is interposed between the upper ring member 33 and the bottom ring member 31, thereby reducing the sliding resistance when the upper ring member 33 rotates relative to the bottom ring member 31. As a result, the driving force required to rotate the inner container 10 (upper ring member 33) is reduced, making it possible to rotate the upper ring member 33.

The crushing mechanism in the crushing section 30 will be explained using the partially enlarged cross-sectional views of Figures 4 and 5. Figure 4 discloses the bottom 12 of the inner container 10 in the crushing device 1 of the embodiment, and the crushing section 30 provided on the bottom 12. In the figure, a protrusion 22 protruding toward the storage section 10i is provided on the inner surface of the side portion 13 near the bottom 12 of the inner container 10, and the guide ring member 20 is placed on the protrusion 22 and combined with the inner container 10. Then, the upper ring member 33 is connected to the guide ring member 20. When connecting the upper ring member 33 and the guide ring member 20, an appropriate structure such as a meshing of a recess and a protrusion is adopted (not shown). In this way, the rotation of the inner container 10 is reliably reflected in the rotation of the upper ring member 33. In the figure, the rolling body 25 of the middle ring member 32 is not shown.

When the liquid to be treated is injected into the inner container 10 and stored in the storage section 10i, the solids contained in the liquid to be treated fall through the inclined surface 21 of the induction ring member 20 to the inside (left side of the drawing) of the upper ring member 33, the middle ring member 32, and the bottom ring member 31 of the annular crushing section 30. In this state, the upper ring member 33 starts to rotate. In the embodiment of the crushing device 1, the pinion 59 rotates with the drive of the motor 55 installed near the outer container opening 51 of the outer container body 53, and the pinion 59 and the flange gear part 19 also rotate in mesh (see Figures 1 and 2). The flange gear part 19 is provided in the fitting part 17, and the fitting part 17 is connected to the inner container 10. The rotational drive of the motor 55 is transmitted to the pinion 59 and the flange gear part 19, and the inner container part 10 rotates. As a result, the motor 55 drives the upper ring member 33 to rotate, and at the same time, the middle ring member 32 also rotates in conjunction with the rotation of the upper ring member 33.

In the figure, a bottom flange portion 46 is provided on the outer periphery of the bottom end of the side portion 13, which is the bottom portion 12 of the inner container portion 10. A filtration portion 45 is provided on the bottom flange portion 46. The filtering process will be described in detail in FIG. 6.

Figure 5 is a partially enlarged cross-sectional view of the three ring members, the upper ring member 33, the middle ring member 32, and the bottom ring member 31, which are the main parts of the crushing section 30 (see Figure 3). As can be seen from Figures 5 and 4, the side of the storage section 10i injected into the inner container section 10 becomes the inlet section 48 of the crushing section 30, and the opposite side across the crushing section 30 becomes the outlet section 49 of the crushing section 30. The liquid to be treated, which contains solids, flows into the crushing section 30 from the inlet section 48 and flows out from the outlet section 49.

At this time, the rotation of the inner container 10 caused by the rotation drive of the motor 55 causes the upper ring member 33 to rotate, and the middle ring member 32 to slide against the upper ring member 33 and the bottom ring member 31. Then, the solids contained in the liquid to be treated penetrate into the gap 41 (upper gap) between the upper ring member 33 and the middle ring member 32, and the gap 42 (lower gap) between the bottom ring member 31 and the middle ring member 32. Then, the solids contained in the liquid to be treated that penetrate through the gap 41 and the gap 42 are crushed by the pressure of the upper ring member 33, the middle ring member 32, and the bottom ring member 31.

In addition, on the inlet 48 side of the crushing section 30, the middle ring member 32 has a middle ring inclined section 36 that becomes thinner toward the inside of the ring (the inlet 48 side shown in the figure). The middle ring inclined section 36 has a horizontal cross-sectional tapered shape, just like the top and bottom, so that solids contained in the treated liquid can easily penetrate from the inlet 48 side into the gap 41 (upper gap) and gap 42 (lower gap).

Therefore, the distance between the upper ring member 33 and the middle ring member 32 in the middle ring inclined portion 36 of the middle ring member 32 and the inlet distance 4i between the bottom ring member 31 and the middle ring member 32 are longer than the gap 41 (upper gap) and the gap 42 (lower gap). The internal distance 4o between the gap 41 (upper gap) and the gap 42 (lower gap) in the central part of the crushing section 30 is narrower than the inlet distance 4i of the middle ring inclined portion 36. The sliding of the upper ring member 33, the middle ring member 32, and the bottom ring member 31 in the crushing section 30 causes an action similar to that of a mortar, and the solids are ground (crushed) by the ring members rubbing against each other. Finally, the solids contained in the treated liquid are ground by passing through the gap 41 (upper gap) and the gap 42 (lower gap) and are discharged from the outlet portion 49 side of the crushing section 30.

According to the pulverizing section 30 of the pulverizing device 1 of the embodiment, the solid content contained in the liquid to be treated is pulverized to a particle size of 0.2 mm or less when it passes through the gap 41 (upper gap) and the gap 42 (lower gap) from the inlet 48 side of the pulverizing section 30 and reaches the outlet 49 side. Specifically, the inlet separation amount 4i is designed to be 1 mm, and the inner separation amount 4o is designed to be 0.1 mm. The upper ring member 33, the middle ring member 32, and the bottom ring member 31 are formed of a material such as stainless steel in consideration of the corrosion resistance of the liquid fertilizer. In addition, in order to pulverize the solid content with a cross-sectional area of 9 mm ² to a cross-sectional area of 0.1 mm ² , a load of 25.46 N/m ² is required, and the upper ring member 33, the middle ring member 32, and the bottom ring member 31 are finished to a surface roughness such that the mutual friction coefficient between them is 0.549 or more.

The partially enlarged cross-sectional view of Figure 6 shows the vicinity of the bottom flange 46 of the bottom 12 of the inner container 10. The solids contained in the liquid to be treated are pulverized through the pulverizing section 30 of the pulverizing device 1. However, there may be cases where the pulverization is uneven or incomplete. Therefore, a section is provided to prevent the outflow of solids with large particle sizes. As shown in Figure 6 and the above-mentioned Figure 4, the bottom flange 46 is provided with a filtration section 45. The filtration section 45 is provided with a filter such as a resin or metal mesh or nonwoven fabric, and solids that are unevenly or incompletely pulverized are filtered (captured) to prevent the outflow of the solids.

As shown in FIG. 6, the liquid to be treated discharged from the outlet 49 of the crushing section 30 flows out of the inner container section 10 through the bottom 12 of the inner container section 10 and flows into the outer container bottom 52 below the outer container body 53 of the outer container section 50. The liquid to be treated that has accumulated in the outer container bottom 52 overflows from the filtration section 45 of the bottom flange section 46. At this time, solids that have not been uniformly or completely crushed in the filtration section 45 can be filtered. The filtered liquid to be treated is then discharged outside the crushing device 1 through a drain pipe 56 installed below the outer container body 53 of the outer container section 50.

The dashed arrows in Figure 6 indicate the route through which the treated liquid passes. The surface of the filtration section 45 that filters the treated liquid faces downward, preventing leakage of solids, and the filtered treated liquid is discharged from the drain pipe 56.

Returning to the illustrations in Figures 1 and 2, the crushing device 1 of this embodiment is provided with a vibration unit 60 at the outer container bottom 52 of the outer container part 50, i.e., directly below the crushing part 30. The vibration unit 60 may be, for example, a vibration motor with a motor and cam (eccentric weight) mechanism, or an ultrasonic vibrator. In the case of a vibration motor, the vibration motor vibrates the liquid to be treated that has flowed into the crushing part 30 located directly above the outer container bottom 52, suppressing precipitation of solids contained in the liquid to be treated. In the case of an ultrasonic vibrator, the shock waves directly crush the solid particles, assisting crushing in the crushing part 30.

The schematic cross-sectional view of Figure 7 discloses another form of the crushing section 30 of the crushing device 1 of the embodiment. The figure shows a form in which the middle ring member 32 is omitted in the crushing section 30, and the upper ring member 33 directly abuts and slides against the bottom ring member 31. In the example of Figure 7, when the upper ring member 33 rotates and slides against the bottom ring member 31, the solids contained in the treated liquid penetrate into the gap 40 between the upper ring member 33 and the bottom ring member 31 and are crushed by the pressure between the upper ring member 33 and the bottom ring member 31.

In addition, as shown in the figure, the upper ring member 33 has an upper ring inclined portion 34 that becomes thinner toward the inside of the ring, and the bottom ring member 31 has a bottom ring inclined portion 35 that becomes thinner toward the inside of the ring. In this way, the inlet separation amount 4i on the inlet portion 48 side is wider than the internal separation amount 4o on the outlet portion 49 side. Of course, the structure in which the upper ring inclined portion 34 and the bottom ring inclined portion 35 are made thin can also be applied to the crushing section 30 disclosed in Figures 3 to 5.

As explained above, the solids that cause clogging are crushed by the pressure of the upper ring member 33, the middle ring member 32, and the bottom ring member 31 (see Figures 3, 4, and 5). Alternatively, they are crushed by the pressure of the upper ring member 33 and the bottom ring member 31 (see Figure 7). Here, in order to efficiently crush and pulverize the solids, it is sufficient to press them toward the bottom ring member 31 to an extent that does not interfere with the rotation between the ring members. When a load is applied from above to each ring member, the gap between the ring members is less likely to widen, making it easier for the solids to be crushed at all times.

Therefore, a weight member is provided on the upper ring member 33. In the embodiment disclosed in the partially enlarged cross-sectional view of FIG. 8, the weight is increased by increasing the thickness of the upper ring member 33s, and the upper ring member 33s itself becomes a weight member. The upper ring member 33s itself acts as a weight and can press the middle ring member 32 and the bottom ring member 31. In the embodiment disclosed in the partially enlarged cross-sectional view of FIG. 9, a weight member 37 (weight ring member) is provided directly above the upper ring member 33. The weight member 37 is an annular member made of the same material as the upper ring member 33, etc. The load of the weight member 37 is applied to the upper ring member 33, the middle ring member 32, and the bottom ring member 31. Note that, even in a form in which the middle ring member 32 is omitted as in the schematic cross-sectional view of FIG. 7, it is possible to increase the thickness of the upper ring member or provide a separate weight member (weight ring member) (not shown).

In addition, as shown in the partially enlarged cross-sectional view of the crushing portion in FIG. 10, crushing grooves are formed in various places on the ring members. In the embodiment disclosed in FIG. 10, an upper ring crushing groove 47 is formed on the upper ring member 33. Also, in the middle ring member 32, a middle ring upper crushing groove 43 is formed on the middle ring member 32 on the side facing the upper ring member 33, and a middle ring lower crushing groove 44 is formed on the middle ring member 32 on the side facing the lower ring member 31. Each crushing groove (upper ring crushing groove 47, middle ring upper crushing groove 43, middle ring lower crushing groove 44) is a gently tapered groove whose depth becomes shallower from the inlet portion 48 side to the outlet portion 49 side.

The crushing grooves (upper ring crushing groove 47, middle ring upper crushing groove 43, middle ring lower crushing groove 44) play the role of the so-called millstone groove in the ring member. The solid content flowing in from the inlet 48 side is likely to enter the deeper side of the crushing grooves (upper ring crushing groove 47, middle ring upper crushing groove 43, middle ring lower crushing groove 44). Therefore, the solid content is gradually crushed while proceeding to the outlet 49 side in the crushing grooves (upper ring crushing groove 47, middle ring upper crushing groove 43, middle ring lower crushing groove 44 shown in the figure) with the rotation of the upper ring member 33, middle ring member 32, and bottom ring member 31. The crushing grooves shown in the figure may be configured in combination with the aforementioned weight member. In addition, in the example of FIG. 7, crushing grooves may be formed in either or both of the upper ring member 33 and the bottom ring member 31.

As explained above, in the embodiment of the crushing device, the solids contained in the liquid to be treated are crushed and crushed by friction between the upper ring member, the middle ring member, and the bottom ring member in the crushing section. Therefore, clogging of the sprinkler nozzle (shower head) of the sprinkler is suppressed. The vibration section also assists crushing in the crushing section. In addition, even if some solids remain in the crushing section, the passage of solids that are not uniformly or completely crushed through the filtration section is suppressed. Furthermore, the weight member increases the load applied to each ring member, making the solids more easily crushed. In addition, the formation of crushing grooves in each ring section adds the function of a millstone, making it easier to grind the solids.

LIST OF SYMBOLS 1 Crushing device 10 Inner container portion 11 Pouring opening 12 Bottom portion 13 Side portion 19 Flange gear portion 20 Induction ring member 25 Rolling body 26 Storage hole portion 30 Crushing portion 31 Bottom ring member 32 Middle ring member 33 Upper ring member 34 Upper ring inclined portion 35 Bottom ring inclined portion 36 Middle ring inclined portion 37 Weight member 40, 41, 42 Gap 43 Middle ring upper crushing groove portion 44 Middle ring lower crushing groove portion 46 Bottom flange portion 47 Upper ring crushing groove portion 48 Inflow portion 49 Outflow portion 50 Outer container portion 55 Motor 59 Pinion 60 Vibration portion

Claims (13)

A crushing device for crushing solids contained in a liquid to be treated, comprising:
an inner container portion having an injection opening into which the liquid to be treated is injected;
a crushing section into which the liquid to be treated stored in the inner container section flows and crushes solids contained in the liquid to be treated;
an outer container portion that covers the bottom and side portions of the inner container portion and accommodates the crushing portion;
The crushing unit includes:
a bottom ring member connected to the bottom of the outer container of the outer container part;
an upper ring member disposed above the bottom ring member and connected to the bottom of the inner container;
a middle ring member disposed between the upper ring member and the bottom ring member and sliding relative to the upper ring member and the bottom ring member;
A crushing device characterized in that when the upper ring member rotates and the middle ring member slides against the upper ring member and the bottom ring member, solids contained in the treated liquid penetrate into the gap between the upper ring member and the middle ring member and the gap between the bottom ring member and the middle ring member, and are crushed by the pressure of the upper ring member, the middle ring member, and the bottom ring member. A crushing device for crushing solids contained in a liquid to be treated, comprising:
an inner container portion having an injection opening into which the liquid to be treated is injected;
a crushing section into which the liquid to be treated stored in the inner container section flows and crushes solids contained in the liquid to be treated;
an outer container portion that covers the bottom and side portions of the inner container portion and accommodates the crushing portion;
The crushing unit includes:
a bottom ring member connected to the bottom of the outer container of the outer container part;
an upper ring member disposed above the bottom ring member, in contact with the bottom ring member, and connected to the bottom of the inner container ;
a guide ring member that is disposed immediately above the crushing section, connects the bottom of the inner container section to the upper ring member, and guides the liquid to be treated that is poured into the inner container section to the crushing section;
A crushing device characterized in that, when the upper ring member rotates and slides against the bottom ring member, solids contained in the treated liquid penetrate into the gap between the upper ring member and the bottom ring member and are crushed by the pressure between the upper ring member and the bottom ring member. The crushing device according to claim 1 or 2, wherein the upper ring member has an upper ring inclined portion that becomes thinner toward the inside of the ring, and the bottom ring member has a bottom ring inclined portion that becomes thinner toward the inside of the ring. The crushing device according to claim 1, wherein the middle ring member has a middle ring inclined portion that becomes thinner toward the inside of the ring. The crushing device according to claim 1, wherein the middle ring member has a rolling element and a receiving hole for receiving the rolling element. The crushing device according to claim 1 or 2, wherein the upper ring member rotates with the rotation of the inner container portion. The outer container portion is provided with a motor for rotating the inner container portion, and a pinion rotated by the motor,
7. The crushing device according to claim 6, wherein the inner container portion is provided with a flange gear portion, the flange gear portion meshes with the pinion, and the inner container portion is rotated by driving the motor. 2. The crushing device according to claim 1, further comprising an induction ring member that is disposed directly above the crushing section, connects the bottom of the inner container section to the upper ring member, and induces the liquid to be treated that is injected into the inner container section to the crushing section. The grinding device according to claim 1 or 2, wherein the bottom of the inner container is provided with a bottom flange having a filtration section that filters the liquid to be treated that has passed through the grinding section. The grinding device according to claim 1 or 2, wherein a vibration unit is provided in the outer container unit directly below the grinding unit. The crushing device according to claim 1 or 2, in which the upper ring member is provided with a weight member. The crushing device according to claim 1 or 2, in which a crushing groove is formed in the upper ring member. The grinding device according to claim 1, in which a grinding groove is formed in the middle ring member.

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