JPH0822477B2 - Pressure filtration device by belt press - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressure filtration device using a belt press for dewatering mud matter under pressure to separate solid and liquid.

[0002]

2. Description of the Related Art Various types of filtration devices for pressurizing and dehydrating mud-like substances have been developed, and as a typical one constituted by a belt press type, Japanese Patent Publication No. 3-23278 proposed by the present inventor. The invention is known.

FIG. 7 shows the above-mentioned prior art, in which a pressure band 5 in which a plurality of pressure plates are formed as an endless band by a chain or a belt is arranged on the peripheral surface of the rotary drum 1, and the rotary drum 1 and the above-mentioned pressurizing member are provided. Filter cloth belts 12, 13 between the pressure belt 5
Is attached. The space between the rotary drum 1 and the pressure band 5 is wide on the supply side of the object to be treated and narrow on the take-out side to compress the object to be separated into solid and liquid.

In the filtration device for separating solid and liquid, the pressure band does not meander, the filter cloth belt that polymerizes in the pressure band does not slip on the pressure band, and the pressure band and the filter cloth belt are separated from each other. It is important that the filtered water be easily removed, but the filtering devices proposed so far, including the above-mentioned conventional example, do not satisfy all of these conditions.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems of the prior art, and prevents the meandering of the pressure band, the slipping of the filter cloth belt, and the complete elimination of the filtered water. It is an object of the present invention to provide a pressure filtration device by a belt press that satisfies each condition.

[0006]

Means for Solving the Problems In the present invention According to an aspect of the first及on the outer peripheral surface of the rotating drum 40
And second filter cloth belts 42 and 43 are arranged, and a rubber plate is provided on the surface.
The pressure plate 47 provided with 50 is made of a plurality of flexible materials.
A plurality of belts are connected to the chain belt 48 and formed into an endless belt.
The pressure band 41, and the surface of each rubber plate of the pressure band 41
A drainage groove is provided on the back of the chain belt 48
To provide the pressure band 41 to the rotary drum 40.
Contact with the first and second filter cloth belts 42, 43 arranged
And form a belt groove that engages with the V-belt of the pressure belt.
The drive roller 44 and the driven roller 55 formed by
The pressure band is arranged so that it can be rotated and rotated, and the pressure band 41 is
The pressure band is applied to a portion to be joined to the rotary drum 40.
Engage with the V-belt to press against the rotating drum
A plurality of pressure rollers 57 having belt grooves formed therein are arranged in parallel.
Then, the pressure band 44 is connected to a rotary drive mechanism to separate the solid-liquid.
Characterized by supplying the object to be separated between the filter cloth belts
It is what

Further, another means for solving the problems in the present invention is an upper side and a lower side formed by arranging rollers in parallel.
An endless belt formed between the roller groups 33 and 34 and
Low-pressure dehydration area with lower filter cloth belts 35 and 36 and rotation
A first and second filter cloth belts 42,
Pressure plate with 43 arranged and a rubber plate 50 on the surface
Multiple 47 on multiple belts 48 made of multiple soft materials
And forming an endless belt to form a pressure belt 41,
A drainage groove is provided on the surface of each rubber plate of the pressurizing band 41 and is connected to
The V-belt 53 is provided on the back surface of the chain belt 48,
41 is provided on the rotary drum 40.
It is in contact with the filter cloth belts 42 and 43, and the V belt of the pressure belt is
Drive roller 44 having a belt groove formed to engage with the belt and
The pressure roller can be circulated and rotated by the driven roller 55.
And the pressure band 41 is joined to the rotary drum 40.
Press the pressure band against the rotating drum toward the rotating part.
Therefore, a belt groove for engaging with the above V-belt is formed.
A high-pressure dehydration area in which a plurality of pressure rollers 57 are arranged in parallel,
The cuff of the filter cloth belts and high pressure dehydration zone圧脱water times Utateka
In addition to connecting to a moving mechanism,
After supplying to the pressure dehydration zone and performing preliminary dehydration, the processed material is subjected to high pressure.
It is characterized in that it is supplied to the dehydration zone.

[0008]

After [action] object to be treated which has been preliminary dewatering by the upper and lower rollers 33 and 34 is supplied to the low-pressure dehydration zone 31, is supplied to the high pressure dehydration zone 32 completely when passing through the high pressure dehydration zone 32 It is dehydrated and taken out as a cake.

A pressure plate 47 constituting the pressure band 41
Prevents the second filter cloth belt 43 joined to the pressure plate 47 from slipping. On the other hand, since the V-belt 53 provided on the chain belt 48 can drive the pressure belt 41 by a strong frictional force, the pressure belt 41 is prevented from meandering. In addition, the pressure
The drainage groove 51 provided on the rubber plate 50 of the rate 47 prevents the filter cloth belt 43 from slipping and ensures the removal of the filtered water .

[0010]

1 to 6 show an embodiment of the present invention. FIG.
In the dehydrator 30, the low pressure dehydration area 31 and the high pressure dehydration area 3
2 and.

In the low-pressure dehydration area 31, an upper filter cloth belt 35 and a lower filter cloth belt 36, which are endlessly formed between an upper roller group 33 and a lower roller group 34 in which rollers are arranged in parallel, are provided at appropriate positions. It is configured by a guide roller arranged via a guide roller. Further, the drive roller 37 around which the upper filter cloth belt 35 is hung and the drive shaft of the drive motor 38 are connected by the drive belt 39, and the drive motor 38 is operated to rotate the upper filter cloth belt 35. The lower filter cloth belt 36 rotates in conjunction with the upper filter cloth belt 35.

The object to be separated in the low-pressure dehydration zone 31 is the upper and lower roller groups 33 and 3.
4 is supplied from the left side, is dehydrated between the roller groups, and is taken out from the vicinity of the drive roller 37. Therefore, it goes without saying that the upper and lower roller groups 33, 34 are arranged such that the mounting intervals are wide on the supply side and narrower toward the take-out side.

Next, the high-pressure dehydration zone 32 has a rotary drum 40.
An endless pressure band 41 is disposed on the outer peripheral surface of the roller, a first filter cloth belt 42 is provided on the rotary drum 40, and a first filter cloth belt 42 is provided between the rotary drum 40 and the pressure band 41. Two filter cloth belts 43 are arranged. The first and second
The filter cloth belts 42 and 43 are formed as endless belts, and are arranged on guide rollers provided at appropriate positions.

On the other hand, the pressure belt 41 is also disposed on the guide roller, but the rotary drive belt 46 is connected between the drive roller 44 and the drive shaft of the rotary drive motor 45 to drive the rotary drive motor 45. It operates to rotate the pressure belt 41. In addition, the first and second filter cloth belts 42 and 43 are the pressure bands 41.
It rotates in conjunction with the rotation of.

Further, the high-pressure dehydration zone 32 is provided adjacent to the low-pressure dehydration zone 31, the side adjacent to the low-pressure dehydration zone 31 is the supply side of the object to be treated, and the vicinity of the drive roller 44 is the extraction side. Is. Then, the rotary drum 40 and the pressure band 41
The mounting interval of is wide on the supply side and narrow on the extraction side.

The pressure band 41, which is the main part of the present invention, will be described in more detail. 2 and 3, the pressure band 41 includes a plurality of pressure plates 47 and a plurality of chain bells.
It is connected to the switch 48. The chain plate 47 is formed by welding a rubber plate 50 to a metal substrate 49,
It is formed horizontally long in a direction orthogonal to the traveling direction of the pressure band 41. Further, the surface of the rubber plate 50 has a plurality of strips .
Drainage groove 51 is provided, the water discharge groove 51 is effective to support without slipping the second filter cloth belt 43, also,
It has the effect of reliably discharging the filtered water. In addition, since the pressure plate 47 is arranged on the outer peripheral surface of the rotary drum 40, it is preferable that the sectional shape be curved (FIG. 3B).

Further, the chain belt 48 is made of rubber and formed in an endless band. In the embodiment, five belts are arranged at equal intervals, and the pressure plate 47 is arranged on the surface of each belt in the belt traveling direction. A plurality of sheets are arranged in the transverse direction, and the two are connected by bolts 52. Further , at least two of the chain belts 48 have the V belts 53 welded to their back surfaces. The V-belt 53 is welded to the center of the back surface of the chain belt 48 along the length direction of the belt, but the nut of the bolt 52 that connects the pressure plate 47 (may be the bolt head). Is protruded, the V-belt 53 is obtained by continuously welding the cut V-belts 53 in a belt shape.

[0018] In embodiments, V belt 53, five
Each of the chain belts 48 is provided on each of the second belts from the outside, but this attachment position may be arbitrary. or,
Rubber side seals 54 are provided at both ends of the pressure plate 47 along the length direction.

FIG. 4, FIG. 5 is that represents the driving roller 44 and the pressure roller 57 for driving the cuff 41. Driven roller 5 paired with the drive roller 44 to drive the dynamic roller 44
5 is provided, a plurality of pressure rollers 57 which are Jikuka the pressure support plate 56 between these drive rollers 44 and the driven roller 55 is disposed. The pressure roller 57
It is shall be pressed cuff 41 by pressing toward the pressure support plate 56 to the rotating drum 40.

Since the drive roller 44 and the driven roller 55 have the same structure, the drive roller 44 will be described here. On the surface of the drive roller 44, the pressure belt 41, that is, the V-belt 53 provided on the chain belt 48 and the annular groove 58 with which the nut protruding from the belt is engaged and held (FIG. 4). The pressure roller 57 includes a chain belt 48 and a V belt 53 (including a nut protrusion).
-Out stepped belt groove 59 for engaging and holding is formed (FIG. 5).

FIG. 6 shows the details of the rotary drum 40. An oblique drain groove 60 is formed on the surface of the rotary drum 40 so that drained water can be easily discharged.

The embodiment is configured as described above, and the material to be treated is supplied to the low-pressure dehydration area 31 and the upper and lower roller groups 33, 3 are provided.
Depending on 4 pre dewatered, then fed to the high pressure dehydration zone 32. Connecting a plurality of pressure plates in a high pressure dehydration zone 32
Since a high surface pressure type for dehydrating is constituted between the pressure belt 41 having the above-mentioned chain belt structure and the rotating drum 40, the object to be processed which has passed through the high-pressure dehydration zone 32 is completely dehydrated and taken out as a cake. Be done.

[0023] In addition, the pressure plate 4 that make up the cuff 41
7 is a plate 49 on which a rubber plate 50 is polymerized and welded, and therefore, the filter cloth belt 4 joined to the pressure plate 47.
Prevent the slip of 3. On the other hand, since the chain belt 48 is provided with the V-belt 53, the pressure band 41 can be driven by a strong frictional force, so that the pressure band is prevented from meandering.

Furthermore , the surface of the pressure plate 47 is drained.
Since the water groove 51 is provided, the filter cloth belt 43 is prevented from slipping and the drainage of the filtered water is surely performed.

In the embodiment, the low pressure dehydration zone 31
The high-pressure dehydration zone 32 and the high-pressure dehydration zone 32 are configured as independent zones, but the advantage of this structure is that the operating speed of each dehydration zone can be set separately and therefore the pressure can be set easily. However, it does not hinder the continuous disposition of the filter cloth belts in the low pressure dehydration area 31 and the high pressure dehydration area 32.

[0026]

According to the present invention, the meandering of the cuff is prevented by providing the V-belt on the back surface of the chain belt <br/> that make up the cuff, also that make up the cuff the pressure plate with polymerizing welding rubber plate to a metal substrate, and discharge of plural rows in the rubber plate
Since the water groove is provided, it has the effects of preventing the filter cloth belt from slipping and reliably discharging the filtered water .

[Brief description of drawings]

FIG. 1 is an overall configuration diagram showing a filtering device.

FIG. 2 shows a pressure band, A is a plan view and B is a bottom view.

3A and 3B show a pressure band, where A is a cross-sectional view in the width direction and B is a cross-sectional view in the length direction.

FIG. 4 is a partially cutaway side view of a drive roller.

FIG. 5 shows a pressure roller, A is a front view of the whole assembled, and B is a sectional view of the roller.

FIG. 6 is a partially cutaway side view of a rotary drum.

FIG. 7 is a side view showing an example of a conventional technique.

[Explanation of symbols]

30 Dehydrator 31 Low Pressure Dewatering Area 32 High Pressure Dewatering Area 33 Upper Roller Group 34 Lower Roller Group 35 Upper Filter Cloth Belt 36 Lower Filter Cloth Belt 37 Drive Roller 38 Drive Motor 39 Drive Belt 40 Rotating Drum 41 Pressure Band 42 First Filter cloth belt 43 Second filter cloth belt 44 Drive roller 45 Drive motor 46 Rotation drive belt 47 Pressure plate 48 Chain belt 49 Substrate 50 Rubber plate 51 Drain groove 52 Bolt 53 V belt 54 Side seal 55 Followed roller 56 Pressurized support Plate 57 Pressure roller 58 Annular groove 59 Belt belt with steps

Claims (2)

[Claims] 1. A first and second filter cloth belt (42, 43) disposed on the outer peripheral surface of the rotating drum (40), to the traveling direction of the rubber plate (50) provided Rutotomoni belt surface Direct
A plurality of pressure plates (47) formed horizontally in the intersecting direction are joined to a plurality of chain belts (48) made of a soft material and formed into endless bands to form a pressure band (41), A drainage groove is provided on the surface of each rubber plate (50) of the pressure belt (41) and a V-belt (53) is provided on the back surface of the chain belt (48), and the pressure belt (41) is attached to the rotary drum. A V-belt that is in contact with the first and second filter cloth belts (42, 43) arranged in (40) and that is in the pressure band.
Drive roller (4 ) having a belt groove formed to engage with (53)
4) and the driven roller (55) are arranged so as to circulate and rotate the pressure band, and the pressure band (41) is rotated as described above.
In order to press it toward the drum (40), the V belt (5
3) a pressure roller (5 ) formed with a belt groove for engaging with
A plurality of 7) are arranged side by side on the peripheral surface of the rotary drum (40) ,
The pressure belt (41) and the first and second filter cloth belts (4
2, 43) is connected to a rotary drive mechanism, and the object to be separated for solid-liquid separation is treated as the first and second filter cloth belts (42, 43).
A pressure filtration device by a belt press, characterized in that it is supplied between the two. 2. An upper and lower filter cloth belt (35, 36) formed in an endless band is provided between an upper and lower roller group (33, 34) configured by arranging rollers in parallel. A pressure plate (1) in which the first and second filter cloth belts (42, 43) are arranged on the low-pressure dehydration zone (31) and the outer peripheral surface of the rotating drum (40) and a rubber plate (50) is provided on the surface ( A plurality of 47) are connected to a chain belt (48) made of a plurality of soft materials and formed into an endless band to form a pressure band (41), and the surface of each rubber plate of the pressure band (41). And a V-belt (53) on the back side of the chain belt (48).
The pressure belt (41) is in contact with the first and second filter cloth belts (42, 43) arranged on the rotary drum (40), and the V belt of the pressure belt (41) is abutted. A drive roller (44) and a driven roller (55) having a belt groove formed to engage with the pressure roller are arranged so that the pressure roller can be rotated and rotated, and the pressure roller (41) is rotated by the rotary drum (40). Towards
The rotating roller (40) is provided with a pressure roller (57) having a belt groove for engaging with the V-belt to press it.
A plurality of high-pressure dehydration areas (32) arranged side by side on the peripheral surface of
Upper and lower filter cloth belts (35, 3 ) in the low-pressure dehydration zone (31)
6) and the pressure zone (41) of the high-pressure dehydration zone (32 )
And the first and second filter cloth belts (42, 43) are connected to a rotary drive mechanism, and the object to be separated for separating solid and liquid is supplied to the low-pressure dehydration zone (31) for preliminary dewatering, and then the object to be treated. A pressure filtration device by a belt press, which supplies a product to a high-pressure dehydration zone (32) .