CN210145624U - Step-by-step belt filter press - Google Patents
Step-by-step belt filter press Download PDFInfo
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- CN210145624U CN210145624U CN201920566335.8U CN201920566335U CN210145624U CN 210145624 U CN210145624 U CN 210145624U CN 201920566335 U CN201920566335 U CN 201920566335U CN 210145624 U CN210145624 U CN 210145624U
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- filter belt
- water distribution
- belt
- distribution branch
- backwashing
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Abstract
The utility model discloses a marching type belt filter press has two back flush subassemblies that carry out the back flush to last filter belt and lower filter belt respectively, and these two back flush subassemblies are located the top of filter belt and lower filter belt respectively, its characterized in that: the backwashing component comprises a backwashing water distribution main pipe connected with an external water source, at least one backwashing water distribution branch pipe, a driving mechanism, at least one backwashing water collection tank and a control unit. The utility model discloses a marching type belt filter press is clean to the back flush of last filter belt and lower filter belt, and dewatering effect is good, is difficult to run mud, and desliming productivity is high.
Description
Technical Field
The utility model particularly relates to a marching type belt filter press.
Background
The sewage treatment plant generates a large amount of sludge in the process of treating sewage, and the reduction treatment of the sludge comprises reduction of the volume of the sludge and reduction of the quality of the sludge. The reduction of the volume of the sludge generally adopts the technologies of sludge concentration, mechanical dehydration, drying and the like, wherein the sludge has a water content of about 95-97% after concentration and still has a large volume, the mechanical dehydration of the sludge can further remove pore water and capillary water in the sludge and reduce the volume of the sludge, and the water content of the sludge can be reduced to 70-80% after the mechanical dehydration treatment, and the volume of the sludge is 1/10-1/4 of the original volume, thereby being beneficial to subsequent transportation and treatment.
The belt filter press is a common device for sludge mechanical dehydration, and uses the pressure difference between two sides of a filter belt as a driving force to force the water in the sludge to pass through the filter belt to form filtrate, and the solid particles are intercepted on the filter belt to form filter cakes, thereby achieving the purpose of sludge dehydration.
As shown in figures 1 and 2, after a power supply is started, an upper filter belt 1 and a lower filter belt 2 start to rotate under the drive of a common motor, sludge mixed with a flocculating agent is flatly laid between the upper filter belt 1 and the lower filter belt 2 from a sludge inlet 4, and a sludge cake is discharged from a sludge outlet 5 after extrusion and dehydration. After the mud cake is discharged from the mud outlet 5, the residual mud in the pores of the upper filter belt 1 and the lower filter belt 2 needs to be washed away by the backwashing water, and the filter belts can recover the normal dehydration function, that is, the high-pressure backwashing water is used for washing the upper filter belt 1 and the lower filter belt 2 through the backwashing component 3 ', the backwashing component 3' comprises a backwashing water distribution pipe 31 'and a backwashing water collection tank 34' as shown in fig. 2, the backwashing water distribution pipe 31 'is provided with a nozzle 311, the high-pressure backwashing water passes through the backwashing water distribution pipe 31, is distributed with water and is sprayed out from the nozzle 311, and is used for respectively backwashing the upper filter belt 1 and the lower filter belt 2, and the backwashing water is collected and then is treated by the backwashing water collection tank 34'. The backwashing water distribution pipe 31' in the prior art is long, the number of nozzles 311 is large, the local loss is large, the water spraying pressure and the flow difference of each nozzle 311 are large, the backwashing of the upper filter belt 1 and the lower filter belt 2 can be incomplete, the sludge dewatering effect is further poor, the filter belt is affected by sludge leakage and the like, the final sludge cake yield is reduced, the nozzles are easy to block, the water distribution pipe and the nozzles are inconvenient to disassemble and clean, the labor intensity is increased, and the working time of the dewatering machine is affected.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a marching type belt filter press.
The utility model discloses a concrete technical scheme as follows:
a step-by-step belt filter press is provided with two backwashing components for backwashing an upper filter belt and a lower filter belt respectively, the two backwashing components are positioned above the upper filter belt and the lower filter belt respectively, the backwashing components comprise a backwashing water distribution main pipe, at least one backwashing water distribution branch pipe, a driving mechanism, at least one backwashing water collection tank and a control unit which are connected with an external water source,
at least one back washing water distribution branch pipe is communicated with a back washing water distribution main pipe, each back washing water distribution branch pipe is provided with a plurality of nozzles facing the surface of the upper filter belt or the lower filter belt, a driving mechanism is connected with the back washing water distribution branch pipes to drive the back washing water distribution branch pipes to displace along the width direction of the upper filter belt or the lower filter belt, a back washing water collecting tank is arranged below the upper filter belt or the lower filter belt to receive back washing water from the nozzles and penetrating through the upper filter belt or the lower filter belt, and a control unit is electrically connected with the driving mechanism.
In a preferred embodiment of the present invention, the driving mechanism includes an annular chain, a driving gear, a driven gear and a driving motor, the driving gear is connected to the power output end of the driving motor, the driving gear and the driven gear are both disposed in the annular chain and respectively engaged with the two ends of the annular chain, at least one back-washing water distribution branch pipe is disposed on the annular chain, and the driving motor is electrically connected to the control unit.
Preferably, the backwash water distribution device further comprises a servo motor and two waterproof travel switches electrically connected with the control unit, the servo motor is used for driving the upper filter belt or the lower filter belt to move, the two waterproof travel switches are symmetrically arranged on two sides of the upper filter belt or the lower filter belt in the width direction, so that after the at least one backwash water distribution branch pipe touches one of the two waterproof travel switches, the servo motor drives the upper filter belt or the lower filter belt to displace for a set distance in a set direction, and then the at least one backwash water distribution branch pipe is driven by the driving mechanism to displace towards the other waterproof travel switch along the width direction of the upper filter belt or the lower filter belt.
In a preferred embodiment of the present invention, the at least one backwash water distribution branch pipe is communicated with the backwash water distribution header pipe through at least one hose.
Further preferably, the number of the backwashing water distribution branch pipes is two.
The utility model has the advantages that:
1. the utility model discloses a backwash water distribution branch pipe is short, and local loss is little, and nozzle water spray pressure, flow disparity are little, and the filter cloth backwash is clean, and sludge dewatering is effectual, is difficult to run mud, and desliming output is high.
2. The utility model discloses a backwash water distribution branch pipe is short, if the nozzle blocks up, backwash water distribution branch pipe and nozzle are dismantled and are washd conveniently, and low in labor strength does not influence hydroextractor operating time.
3. The utility model discloses a marching type belt filter press is clean to the back flush of last filter belt and lower filter belt, and dewatering effect is good, is difficult to run mud, and desliming productivity is high.
Drawings
Fig. 1 is a schematic structural view of a belt filter press according to the prior art.
Fig. 2 is a schematic structural diagram of a backwash water distributor of a belt filter press in the prior art.
Fig. 3 is a schematic structural diagram of the step belt filter press according to the present invention.
Fig. 4 is a schematic structural diagram of the backwash assembly of the present invention.
Detailed Description
The technical solution of the present invention will be further illustrated and described below with reference to the accompanying drawings by means of specific embodiments.
As shown in fig. 3, a step-by-step belt filter press has two backwashing units 3 for backwashing an upper filter belt 1 and a lower filter belt 2, respectively, the two backwashing units 3 being located above the upper filter belt 1 and the lower filter belt 2, respectively,
as shown in fig. 3 and 4, backwash assembly 3 includes a main backwash water distribution pipe 31 connected to an external water source, two backwash water distribution branch pipes 32 extending in the forward direction of upper filter belt 1 or lower filter belt 2, a driving mechanism 33, a backwash water collection tank 34, and a control unit (not shown),
the two backwashing water distribution branch pipes 32 are communicated with the backwashing water distribution header pipe 31 through plastic hoses 320, each backwashing water distribution branch pipe 32 is provided with a plurality of nozzles 321 facing the surface of the upper filter belt 1 or the lower filter belt 2, a driving mechanism 33 is connected with the backwashing water distribution branch pipes 32 to drive the backwashing water distribution branch pipes 32 to displace along the width direction of the upper filter belt 1 or the lower filter belt 2, a backwashing water collection tank 34 is arranged below the upper filter belt 1 or the lower filter belt 2 to receive backwashing water which comes from the nozzles 321 and penetrates through the upper filter belt 1 or the lower filter belt 2, and a control unit is electrically connected with the driving mechanism 33.
The driving mechanism 33 comprises an annular chain 331, a driving gear 332, a driven gear 333 and a driving motor 334, the driving gear 332 is connected with the power output end of the driving motor 334, the driving gear 332 and the driven gear 333 are both arranged in the annular chain 331 and are respectively meshed with two ends of the annular chain 331, the two backwashing water distribution branch pipes 32 are arranged on the annular chain 331, and the driving motor 334 is electrically connected with the control unit.
Preferably, each backwashing assembly 3 further comprises a servo motor 35 and two waterproof travel switches 36 electrically connected with the control unit, the servo motor 35 is used for driving the upper filter belt 1 or the lower filter belt 2 to move, the two waterproof travel switches 36 are symmetrically arranged on two sides of the upper filter belt 1 or the lower filter belt 2 in the width direction, so that after the backwashing water distribution branch pipe 32 touches one of the two waterproof travel switches 36, the servo motor 35 drives the upper filter belt 1 or the lower filter belt 2 to displace for a set distance in the set direction, and then the backwashing water distribution branch pipe 32 is driven by the driving mechanism 33 to displace towards the other waterproof travel switch 36 along the width direction of the upper filter belt 1 or the lower filter belt 2.
The utility model discloses a concrete operation process as follows: after starting, under the control of the control unit, the driving motor 334 drives the endless chain 331 to rotate through the driving gear 332 and the driven gear 333, the nozzles of the back-washing water distribution branch pipes 32 back-wash the upper filter belt 1 or the lower filter belt 2, when the back-washing water distribution branch pipes 32 are displaced to touch the waterproof travel switch 36 on one side, the servo motor 35 drives the upper filter belt 1 or the lower filter belt 2 to advance by a set distance (preferably, the length of the back-washing water distribution branch pipes 32 is the same), and the back-washing water distribution branch pipes 32 are displaced to the other side of the upper filter belt 1 or the lower filter belt 2 to back-wash the upper filter belt 1 or the lower filter belt 2 until the waterproof travel switch 36 on the other side is touched, so that stepping is repeatedly achieved.
The above description is only a preferred embodiment of the present invention, and therefore the scope of the present invention should not be limited by this description, and all equivalent changes and modifications made within the scope and the specification of the present invention should be covered by the present invention.
Claims (5)
1. The utility model provides a marching type belt filter press, has two back flush subassemblies that carry out the back flush respectively to last filter belt and lower filter belt, and this two back flush subassemblies are located the top of last filter belt and lower filter belt respectively which characterized in that: the backwashing component comprises a backwashing water distribution main pipe connected with an external water source, at least one backwashing water distribution branch pipe, a driving mechanism, at least one backwashing water collection tank and a control unit,
at least one back washing water distribution branch pipe is communicated with a back washing water distribution main pipe, each back washing water distribution branch pipe is provided with a plurality of nozzles facing the surface of the upper filter belt or the lower filter belt, a driving mechanism is connected with the back washing water distribution branch pipes to drive the back washing water distribution branch pipes to displace along the width direction of the upper filter belt or the lower filter belt, a back washing water collecting tank is arranged below the upper filter belt or the lower filter belt to receive back washing water from the nozzles and penetrating through the upper filter belt or the lower filter belt, and a control unit is electrically connected with the driving mechanism.
2. The step belt filter press of claim 1, wherein: the driving mechanism comprises an annular chain, a driving gear, a driven gear and a driving motor, the driving gear is connected with the power output end of the driving motor, the driving gear and the driven gear are arranged in the annular chain and are respectively meshed with the two ends of the annular chain, the at least one backwashing water distribution branch pipe is arranged on the annular chain, and the driving motor is electrically connected with the control unit.
3. The step belt filter press of claim 2, wherein: the water distribution device is characterized by further comprising a servo motor and two waterproof travel switches, wherein the servo motor is electrically connected with the control unit and used for driving the upper filter belt or the lower filter belt to move, the two waterproof travel switches are symmetrically arranged on two sides of the upper filter belt or the lower filter belt in the width direction, so that after the at least one backwashing water distribution branch pipe touches one of the two waterproof travel switches, the servo motor drives the upper filter belt or the lower filter belt to move for a set distance in the set direction, and then the at least one backwashing water distribution branch pipe is driven by the driving mechanism to move towards the other waterproof travel switch along the width direction of the upper filter belt or the lower filter belt.
4. A step belt filter press as claimed in any one of claims 1 to 3, wherein: the at least one backwash water distribution branch pipe is communicated with the backwash water distribution main pipe through at least one hose.
5. The filter press of claim 4, wherein: the number of the back-flushing water distribution branch pipes is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920566335.8U CN210145624U (en) | 2019-04-24 | 2019-04-24 | Step-by-step belt filter press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920566335.8U CN210145624U (en) | 2019-04-24 | 2019-04-24 | Step-by-step belt filter press |
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| Publication Number | Publication Date |
|---|---|
| CN210145624U true CN210145624U (en) | 2020-03-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920566335.8U Active CN210145624U (en) | 2019-04-24 | 2019-04-24 | Step-by-step belt filter press |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114225521A (en) * | 2021-12-29 | 2022-03-25 | 威海丰泰新材料科技股份有限公司 | Filter belt type superfine grating machine |
-
2019
- 2019-04-24 CN CN201920566335.8U patent/CN210145624U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114225521A (en) * | 2021-12-29 | 2022-03-25 | 威海丰泰新材料科技股份有限公司 | Filter belt type superfine grating machine |
| CN114225521B (en) * | 2021-12-29 | 2023-03-14 | 威海丰泰新材料科技股份有限公司 | Filter belt type superfine grating machine |
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