JP4388935B2 - Container contents flow promotion device - Google Patents

Description

The present invention, a hopper, to an apparatus for promoting the flow of particulate material storage container and attached to the dust collecting container such as a bag filter granular material silos or the like.

In conventional hoppers and silos used to store or move sludge such as sludge, the contents of mud and powder solidify or become bridged. In some cases, the content flow may be hindered.
In order to solve such a problem, an inflow hole for pressurized gas is provided in the container, an elastic plate that covers the inflow hole is provided on the inner wall of the container, and the pressurized gas is supplied from the inflow hole to An apparatus has been proposed in which a pressurized gas is jetted along the inner wall from the peripheral edge to promote the flow of powder particles .

For example, in the invention described in US Pat. No. 4,626,543, an elastic plate is attached to an inner wall of a container, and the elastic plate is deformed by the pressure of air supplied from the back side thereof, so that a gap is formed between the inner wall of the container and the elastic plate. The air is ejected from the gap, and the flow is promoted by applying force to the mud using the ejected air and the vibration of the elastic plate generated by the ejection of the air.
US Pat. No. 4,626,543

Further, the invention described in Japanese Patent Application Laid-Open No. 2004-352433 relates to the supply of pressurized air to the elastic plate, and temporarily stores the pressurized air in the header tank, and the normally closed open valve is used as the header tank. When the inside air is sent to the elastic plate, it is opened and pressurized air is supplied instantaneously.
JP 2004-352433 A

  By the way, in this type of apparatus, since the contents may enter the gap between the elastic plate and the container wall surface and clogging may occur, maintenance is performed by periodically removing the elastic plate from the container. There is a need. In addition, the container is not always put in the same kind of material, it may be used by replacing various materials, it is necessary to replace the elastic member so that the flow can be accelerated according to its contents, At that time, it is preferable that the elastic member can be easily replaced.

  However, in order to attach the elastic plate in the invention described in Patent Document 1, it is necessary to dispose the elastic plate on the inside of the container and to fix the screw by screwing the nut from the outside of the container. The same applies to the invention described in the above.

  In the invention of Japanese Patent Application No. 2006-38860, the applicant can easily attach and remove the elastic plate so as to improve the maintainability, and can appropriately promote the flow according to the contents. Proposed fluid fluid flow promotion device. According to the present invention, an inflow hole for pressurized gas having a function as an insertion hole for an elastic plate is formed on the side surface of the powder fluid container, and a guide path for the elastic plate, a flow path for the pressurized gas, and an elastic plate are formed in the inflow hole. A cylindrical body having a function as a holding means of a support bolt to which is attached is attached.

This invention is directed to an object to obtain attachment to the container of the entire device, easily way a more granular material flow promoting device with improved maintainability and removal.

The present invention is characterized in that a cylindrical body serving as a pressurizing gas flow path and a fixing tool for fixing the elastic plate to the granular container is nipped and fixed to the side surface of the container. To do.
That is, a cylindrical body having a flange that engages with the inner wall of the inflow hole is engaged with the inflow hole of the pressurized gas formed on the side surface of the powder container, and formed on the outer periphery of the cylinder A fixing nut is screwed onto the screw, and the peripheral portion of the inlet hole of the container is held between the fixing nut and the flange, thereby fixing the cylindrical body to the side surface of the container. And the elastic plate which plugs up the said inflow hole in the inner wall face of the said container is attached to the front end side of the said cylinder.
The elastic plate has a size and shape that can be taken into and out of the inflow hole by utilizing its elastic deformation, and the flange of the cylindrical body has a size and shape that can be taken in and out of the inflow hole. Configure.

The flange has a configuration in which the flange is integrated with the cylindrical body, and a configuration in which the flange is fitted to the cylindrical body as a separate member.
The elastic plate has a configuration in which the elastic plate is attached to the cylinder via a support bolt and a configuration in which the elastic plate is directly attached to the cylinder. In any configuration, the cylinder functions as a flow path for the pressurized gas and as a fixture for the elastic plate.

  According to the invention of claim 2, the elastic plate is attached via a support bolt, and a holding portion having an insertion hole for the support bolt is provided in the inner anus of the cylinder, and the elastic plate is attached to the tip of the insertion hole. A support bolt is inserted, and the holding bolt is clamped by two nuts screwed to the support bolt to fix the support bolt to the cylinder.

  According to a third aspect of the present invention, the elastic plate is directly attached to the cylinder, and the elastic plate is attached to the tip of the cylinder and a plurality of pressurized gas ejection holes are formed in the peripheral wall of the tip.

  According to a fourth aspect of the present invention, when the cylindrical body is fixed to the container wall with the flange and the nut, a spacer is interposed between the outer wall of the container and the nut, and the positioning projection is in contact with the inner wall of the inflow hole of the inflow hole. And the protrusion is fitted into the inflow hole.

  The apparatus of this invention connects the base end of a cylinder to the generation source of pressurized gas, and ejects pressurized gas from the front-end | tip of a cylinder. At this time, the pressurized gas pushes up the peripheral edge of the elastic plate and is ejected into the powder container, so that the powder is fluidized.

According to this invention, the flow path of the pressurized gas and the cylindrical body as the attachment portion of the elastic plate can be fixed to the powder container by the holding structure. And since the magnitude | size and shape of the flange used as a clamping means are what can pass an inflow hole, a cylinder can be easily attached or detached with a container. Further, since the elastic plate is the same, according to the present invention, the whole powder flow device can be attached to and detached from the container.
Therefore, the following effects can be obtained.
(1) When the device is attached to the container, the operation of welding the cylindrical body is unnecessary, and there is no risk of ignition during the operation, so the device can be attached easily and safely.
(2) Since welding is not required, the entire apparatus including the cylinder can be removed from the container, and the entire apparatus can be removed and reused when the container is abolished.
(3) The elastic plate can be detached from the container, and maintenance such as replacement of the elastic plate is easy.

According to the fourth aspect of the present invention, since the cylindrical body is fixed by fitting the spacer positioning projections to the inflow hole, the mounting position of the cylindrical body with respect to the inflow hole can be easily determined.
Moreover, the said protrusion can also be formed in cyclic | annular form other than the aspect shown in embodiment.

  Examples of the present invention will be described below.

FIG. 1 shows a first embodiment of the present invention.
Granular material container 1 (eg granule storage hopper) inflow hole 2 of the side wall to the pressurized gas of is formed. The cylindrical body 3 held in the inflow hole 2 has a flange 31 formed at the tip thereof. The flanges 31 are formed symmetrically in diameter at two locations on the front edge of the cylindrical body, and the distance between the outer edges of the two flanges 31 is formed larger than the diameter of the inflow hole 2. When tilted, it is sized and shaped so that it can pass through the inflow hole 2 and be taken in and out of the container 1. Further, a screw is formed on the outer periphery of the cylindrical body 3.
The cylindrical body 3 is arranged in the inflow hole 2 with a flange 31 formed at the proximal end of the cylindrical body 3 being inside the container. A spacer 4 and a fixing nut 5 are attached to the outer side of the container of the cylindrical body 3, and the peripheral edge of the inflow hole 2 of the container 1 is held between the flange 31 and the fixing nut 5 so that the cylindrical body 3 is 1 is fixed.

  The spacer 4 is annular, and the surface on the inflow hole side is formed with two positioning projections 41 that are in contact with the inner wall of the inflow hole 2 in a symmetric shape. The projections 41 are fitted in the inflow hole 2. Yes. Between the end face of the spacer 4 and the periphery of the inflow hole and between the flange 52 serving as the spacer receiving portion of the fixing nut 5, a sponge rubber 43 and an O-ring 53 are attached as seals and cushioning members, respectively. It has been.

A holding part 32 to which the support bolt 6 is screwed is formed in the inner base of the cylinder 3. This holding portion 32 is cylindrical and is connected to the inner wall of the cylindrical body 3 by a radially formed support wall 34, and an insertion hole 33 through which the support bolt 6 is inserted is formed at the center. The support bolt 6 is inserted. A side of the support wall 34 is a pressurized gas flow path 35.
An elastic plate 7 is attached to the distal end of the support bolt 6, and the elastic plate 7 is positioned for contact with the distal end side of the holding portion 32 at a position where the elastic plate 7 is held in a state where the peripheral edge portion is in contact with the inner wall surface of the container 1. A nut 8 is attached, and the support bolt 6 is fixed to the holding portion 32 by sandwiching the holding portion 32 in cooperation with the fixing nut 9 screwed to the proximal end side of the holding portion 32.
A pressurized gas supply device 10 is connected to the outer peripheral portion of the other end of the cylindrical body 3 and fixed with a fixing nut 11.

  In the above description, the size of the elastic plate and the inflow hole 2 of the container 1 is set such that the elastic plate 7 passes through the inflow hole 2 and can be taken in and out of the container 1 by elastic deformation of the elastic plate 7.

The pressurized gas supply device may be a compressor, but the following configuration is preferable because the pressurized gas is ejected instantaneously and the fluidization promoting effect is high.
An air intake chamber 103 is provided inside the air inlet 102 of the casing 101, a gas flow path 104 is provided in the downstream central portion of the air intake chamber 103, and a pressure accumulating chamber 105 is provided around the gas flow path 104, Between the air intake chamber 103 and the gas flow path 104 and the pressure accumulating chamber 105, an umbrella valve 106 that allows only inflow of the inflowing gas into the pressure accumulating chamber 105 is attached. One end of the cylindrical body 3 is connected to the gas flow path 104. Reference numeral 107 in the figure is a three-way valve.

In this apparatus, when gas is supplied from the three-way valve 107, the gas reaches the pressure accumulation chamber 105 through the air intake chamber 103 and is compressed. Next, when the three-way valve 107 is switched to the discharge side, the closure of the gas flow path 104 by the umbrella-shaped valve 106 is released, so that the pressurized gas in the pressure accumulating chamber 105 instantaneously flows through the gas flow path 104 and the cylinder 3. It reaches the hole 2, pushes up the peripheral edge of the elastic plate 7, and ejects along the inner wall surface of the container 1. Therefore, the flow of the granular material deposited around the elastic plate is promoted.

The procedure for attaching the cylindrical body 3 and the elastic plate 7 to the container 1 in this embodiment is as follows (see FIGS. 3 to 8).
The support bolt 6 is inserted into the insertion hole 33 of the holding portion 32 inside the cylindrical body 3. At this time, the positioning nut 8 is mounted at a predetermined position. When the elastic plate 7 attached to the support bolt 6 is pushed through the inflow hole 2 formed in the container 1 in this state, the elastic plate 7 is inserted into the container 1 while elastically deforming and passes through the inflow hole 2. The original shape is restored (FIG. 3).
Next, the cylindrical body 3 is tilted so that one of the flanges 31 passes through the inflow hole 2 first, and the other flange 31 is also passed through while maintaining the state in which the flange is tilted. When the flange completely passes through the inflow hole 2, the cylinder 3 is pulled to the outside of the container 1 to lock the flange 31 to the inner wall surface of the periphery of the inflow hole 2 (FIGS. 4 and 5).
Next, the spacer 4 is inserted into the cylinder 3 with the protrusion 41 facing the container, and the protrusion 41 is fitted into the inflow hole 2 (FIG. 6). Then, the fixing nut 5 screwed into the cylinder 3 is tightened to sandwich the spacer 4 and the peripheral portion of the inflow hole 2 with the flange 31, and the cylindrical body 3 and the inflow hole 2 are fastened (FIG. 7).
Finally, the support bolt 6 is pulled back to the outside of the container 1, and the fixing nut 9 is tightened and fixed at a position where the positioning nut 8 contacts the holding portion 32 of the cylindrical body 3 (FIG. 8).
Removal of the cylindrical body 3 and the elastic plate 7 from the container 1 is performed in the reverse order.
According to this embodiment, as described above, it is possible to easily attach and detach the elastic plate 7 and the cylindrical body 3 to and from the inflow hole only from the outside of the container.

FIG. 9 shows a second embodiment of the present invention.
A pressurized gas inflow hole 2 is formed in the side wall of the container 1, and a cylindrical body 3 having a diameter smaller than that of the inflow hole 2 is latched and held in the inflow hole 2. An annular locking projection 36 is formed near the base end of the cylindrical body 3, and a plurality of pressurized gas ejection holes 37 are formed at equal intervals on the distal end side peripheral wall of the cylindrical body 3. An elastic plate 7 is attached to the tip.
A locking member 12 is fitted to the cylindrical body 3. The locking member 12 has a hole for fitting into the cylindrical body 3, and a flange 121 is formed on the outside of the rising wall from the periphery of the hole through the rising wall 122 so as to have two diameters. is there.
The rising wall 122 is fitted into the outflow hole 2, and the flange 121 is in contact with the inner wall of the container 1. The flange 3 and the fixing nut 5 screwed into a screw formed on the outer wall of the cylindrical body 3 sandwich the wall of the container 1 to fix the cylindrical body 3.
A protrusion 41 of the spacer 4 is fitted in the gap between the rising wall 122 and the inflow hole 2.
In the figure, reference numeral 43 is a sponge rubber, and 53 is an O-ring.

The procedure for attaching the cylindrical body 3 and the elastic plate 7 to the container 1 in the second embodiment is as follows (see FIGS. 11 to 15).
When the elastic plate 7 attached to the cylinder 3 is pushed through the inflow hole 2 formed in the container 1, the elastic plate 7 is inserted into the inside of the container 1 while being elastically deformed. Return to FIG.
Next, the locking member 12 is attached to the cylinder 3 and the cylinder 3 is tilted so that one of the flanges 121 first passes through the inflow hole 2 and then the other flange 121 also passes (FIG. 12). When the locking member 12 completely passes through the inflow hole 2, the cylinder 3 is pulled outside the container 1 to lock the flange 121 to the inner wall surface of the periphery of the inflow hole 2 (FIG. 13).
Next, the spacer 4 is inserted into the cylinder 3 with the projection 41 facing the container, and the projection 41 is fitted into the inflow hole 2 (FIG. 14). Then, the fixing nut 5 screwed into the cylindrical body 3 is tightened, and the flange 4 and the fixing nut 5 sandwich the spacer 4 and the peripheral portion of the inflow hole 2 to fix the cylindrical body 3 to the inflow hole 2 (FIG. 15). ).
Removal of the cylindrical body 3 and the elastic plate 7 from the container 1 is performed in the reverse order.

  In the above embodiment, the pressurized gas is ejected from the ejection hole 37 through the cylindrical body 3, and the peripheral edge of the elastic plate is pushed up and ejected into the container.

  In the first and second embodiments, the shape of the inflow hole 2 can be the same as the shape of the flange 31 or the locking member 12. In this case, the cylindrical body 3 can be passed through the inflow hole 2 without being inclined, and after the flange 31 has completely passed through the inflow hole 2, the cylindrical body 3 is rotated about its axis and pulled back to the outside of the container. The flange 31 or the locking member 12 is locked to the periphery of the inflow hole 2. At this time, since a gap is generated between the inflow hole 2 and the cylindrical body 3, the protrusion 41 of the spacer 4 can be closed as a shape corresponding to the gap.

  The present invention relates to a device that is attached to a storage container such as a hopper or a silo and promotes the flow of the contents of the container, and has industrial applicability.

Sectional drawing which shows 1st Example of this invention Similarly, an exploded perspective view showing the structure of the mounting portion Sectional view showing the middle of the elastic plate Cross-sectional view showing the middle of the cylinder Sectional drawing which shows the state which similarly latched the flange part of the cylinder to the peripheral part of the inflow hole Sectional drawing which shows the state which similarly fitted the spacer with the inflow hole Sectional view showing the state where the fixing nut is also tightened Sectional drawing which shows the state which similarly hold | maintained the elastic plate in the predetermined position Sectional drawing which shows 2nd Example of this invention Similarly, an exploded perspective view showing the structure of the mounting portion Sectional view showing the middle of the elastic plate Cross-sectional view showing the middle of the cylinder Sectional drawing which shows the state which latched the locking member to the inflow hole peripheral part similarly Similarly, a sectional view showing a state where the elastic plate is moved to a predetermined position and the spacer is fitted into the inflow hole. Sectional view showing the state where the fixing nut is also tightened

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Container 2 Inflow hole 3 Cylindrical body 31 Flange 32 Holding part 33 Insertion hole 34 Support wall 35 Flow path 36 Locking protrusion 37 Injection hole 4 Spacer 41 Projection 43 Sponge rubber 5 Fixing nut 53 O-ring 6 Support bolt 7 Elastic plate 8 Positioning nut 9 Fixing nut 10 Feeding device 11 Fixing nut 12 Locking member 121 Flange 122 Rising wall

Claims (4)

The inlet of the formed powdered or granular material container side pressurized gas, the cylindrical body having a flange for engaging the inner wall of the inflow hole to the tip is engaged,
A screw is formed on the outer periphery of the cylindrical body,
The cylindrical body is fixed to the side surface of the container by sandwiching the peripheral edge of the inflow hole with the fixing nut and the flange screwed to the screw,
An elastic plate that closes the inflow hole in the inner wall surface of the container is attached to the distal end side of the cylindrical body,
The inflow hole is formed in a size that allows the elastic plate to be taken in and out using its elastic deformation,
The flange is formed in a size and shape that can be taken in and out of the inflow hole,
Granular material flow promoting device The cylindrical body is provided with a holding portion having an insertion hole for a support bolt in the inner anus,
A support bolt having an elastic plate attached to the tip is inserted into the insertion hole,
The support bolt is fixed to the cylindrical body by holding the holding portion by two nuts screwed to the support bolt.
The granular material flow promoting device according to claim 1. The cylinder has an elastic plate attached to the tip, and a plurality of pressurized gas ejection holes are formed on the tip peripheral wall.
The granular material flow promoting device according to claim 1. The spacer is interposed between the outer wall surface of the granular container and the fixing nut, and a positioning projection is formed on the spacer in contact with the inner wall of the inflow hole, and the projection is fitted into the inflow hole. Or the powder body flow promoting device according to any one of 3

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