CN114570076A - Driving structure for filter press, filter press and control method of filter press - Google Patents
Driving structure for filter press, filter press and control method of filter press Download PDFInfo
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- CN114570076A CN114570076A CN202210124304.3A CN202210124304A CN114570076A CN 114570076 A CN114570076 A CN 114570076A CN 202210124304 A CN202210124304 A CN 202210124304A CN 114570076 A CN114570076 A CN 114570076A
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- hydraulic cylinder
- filter press
- driving structure
- base
- sliding block
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/12—Filter presses, i.e. of the plate or plate and frame type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/003—Filters formed by clamping together several filtering elements or parts of such elements integrally combined with devices for controlling the filtration
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- Chemical Kinetics & Catalysis (AREA)
- Press Drives And Press Lines (AREA)
Abstract
The application relates to a driving structure, a filter press and a control method of the filter press. The driving structure includes: a base provided with a first through hole; the hydraulic cylinder fixing seat is connected with the base; the first hydraulic cylinder is arranged on the hydraulic cylinder fixing seat; the sliding assembly comprises a guide rail and a sliding block, the guide rail extends along the telescopic direction of the first hydraulic cylinder, the sliding block is arranged on the guide rail in a sliding manner, and a piston rod of the first hydraulic cylinder is connected with the sliding block; the second hydraulic cylinder is arranged on the sliding block; the hydraulic cylinder supporting seat is connected with a second hydraulic cylinder, and the second hydraulic cylinder drives the hydraulic cylinder supporting seat to lift; the third hydraulic cylinder is arranged on the hydraulic cylinder supporting seat; and the ejector rod is arranged on the cylinder body of the third hydraulic cylinder and can penetrate into the first through hole of the base. The application has the advantages that the driving structure realizes the compression of the filter press through two-stage propulsion, the use of hydraulic oil is reduced, and the whole weight of the filter press is reduced.
Description
Technical Field
The application relates to the field of filter pressing equipment, in particular to a driving structure for a filter press, the filter press and a control method of the filter press.
Background
The filter press is a device for realizing solid-liquid separation, and is widely applied to the industries of chemical industry, petroleum, medium mine, pharmacy, food, municipal administration and the like. In the existing filter press, a thrust plate is generally arranged at the front/rear end of a frame, a hold-down plate is arranged at the rear/front end of the frame, a group of filter plates are arranged between the thrust plate and the hold-down plate, the filter plates are connected with guide rails on a main beam of the frame through handles at the left and right sides of the filter plates, in the working process of the filter press, an oil cylinder group pushes the hold-down plate to enable the filter plates to be tightly attached to each other, the filter plates are separated under the pulling action of a plate pulling trolley after the filter press is finished, and the filter plates are reciprocated to realize the separation of solid and liquid.
When the pressure requirement of the existing filter press is large, the diameter of a cylinder body and the diameter of a piston rod of a hydraulic rod can only be correspondingly increased, the consumption of hydraulic oil of a long-stroke hydraulic cylinder is large, and the oil filling time is long.
Disclosure of Invention
In view of the above problems, the present application provides a driving structure for a filter press, and a control method for a filter press, in which a third hydraulic cylinder is pushed to move by a first hydraulic cylinder to reduce the stroke of the third hydraulic cylinder.
One embodiment of the present application provides a driving structure for a filter press, comprising: a base provided with a first through hole; the hydraulic cylinder fixing seat is connected with the base; the first hydraulic cylinder is arranged on the hydraulic cylinder fixing seat; the sliding assembly comprises a guide rail and a sliding block, the guide rail extends along the telescopic direction of the first hydraulic cylinder, the sliding block is arranged on the guide rail in a sliding mode, and a piston rod of the first hydraulic cylinder is connected with the sliding block; the second hydraulic cylinder is arranged on the sliding block; the hydraulic cylinder supporting seat is connected with the second hydraulic cylinder, and the second hydraulic cylinder drives the hydraulic cylinder supporting seat to lift; the third hydraulic cylinder is arranged on the hydraulic cylinder supporting seat; and the ejector rod is arranged on the cylinder body of the third hydraulic cylinder and can penetrate into the first through hole of the base.
According to some embodiments of the application, the quantity of first pneumatic cylinder is two, two first pneumatic cylinder set up respectively in the both sides of pneumatic cylinder supporting seat.
According to some embodiments of the application, a roller is arranged on the sliding block, and the roller can roll on the guide rail.
According to some embodiments of the application, the driving structure further comprises a guide assembly for guiding the lifting of the hydraulic cylinder support base.
According to some embodiments of the application, the guide assembly comprises: the guide sleeve is arranged on the hydraulic cylinder supporting seat; and the guide post is arranged on the sliding block and can penetrate into the guide sleeve in a sliding manner.
According to some embodiments of the application, the third hydraulic cylinder and the ram are each in a plurality.
According to some embodiments of the application, the carrier rod is a hollow structure.
One embodiment of the present application provides a filter press comprising: the drive structure as described above; the driving structure is arranged on the rack; and the compression plate is connected with a piston rod of the third hydraulic cylinder.
One embodiment of the present application provides a method of controlling a filter press, comprising: the first hydraulic cylinder works to push the sliding block to move forwards, and the ejector rod moves out of the first through hole of the base; the second hydraulic cylinder works to push the hydraulic cylinder supporting seat to rise; and the third hydraulic cylinder works to push the pressing plate to move forwards, and the ejector rod abuts against the base.
According to the hydraulic system, the first hydraulic cylinder drives the third hydraulic cylinder to move back and forth, and the second hydraulic cylinder drives the third hydraulic cylinder to lift, so that the stroke of the third hydraulic cylinder is shortened, and the use of hydraulic oil is reduced; and the third hydraulic cylinders are matched to provide enough working pressure for the filter press.
Drawings
In order to more clearly illustrate the technical solutions of the present application, the drawings required for the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without exceeding the protection scope of the present application.
FIG. 1 is a first schematic view of a driving structure according to an embodiment of the present application;
FIG. 2 is a second schematic view of a driving structure according to an embodiment of the present application;
FIG. 3 is a schematic view of a base according to an embodiment of the present application;
FIG. 4 is a schematic view of a hydraulic cylinder support base according to an embodiment of the present disclosure;
FIG. 5 is a schematic view of a slider according to an embodiment of the present application;
FIG. 6 is a schematic view of a guide assembly according to an embodiment of the present application;
FIG. 7 is a schematic assembly diagram of a hydraulic cylinder support seat, a third hydraulic cylinder and a push rod according to the embodiment of the present application;
FIG. 8 is a schematic view of a carrier rod according to an embodiment of the present application;
figure 9 is a schematic view of a filter press according to an embodiment of the present application.
Detailed Description
The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, not all, of the embodiments of the present application. All other embodiments obtained by a person skilled in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.
As shown in fig. 1 and fig. 2, the present embodiment provides a driving structure 100 for a filter press, and the driving structure 100 is a hydraulic driving structure and can be used to power the filter press. Drive structure 100 includes base 1, pneumatic cylinder fixing base 2, first pneumatic cylinder 3, sliding component 4, second pneumatic cylinder 5, pneumatic cylinder supporting seat 6, third pneumatic cylinder 7 and ejector pin 8. Optionally, the frame of the filter press comprises a hook 201 and a side plate 202. The driving structure 100 is disposed on a frame of the filter press.
As shown in fig. 3, the base 1 is provided with a first through hole 11, and the first through hole 11 penetrates through the front end surface and the rear end surface of the base 1. Alternatively, the base 1 of the present embodiment is formed by welding steel plates, and the base 1 includes a plurality of horizontal partitions 12 and a plurality of vertical partitions 13. The plurality of horizontal partition plates 12 are sequentially arranged in a vertical direction, vertical partition plates 13 are arranged between adjacent horizontal partition plates 12, and the adjacent horizontal partition plates 12 and the adjacent vertical partition plates 13 form first through holes 11. The number of the first through holes 11 is set as required. The side wall of the base 1 is provided with a hook groove 14 for mounting the hook 201. The hook 201 of the filter press is installed in the hook groove 14.
The hydraulic cylinder fixing seat 2 is connected with the base 1. The connection in this embodiment may be a direct connection or an indirect connection. In this embodiment, hydraulic cylinder fixing base 2 sets up on the eave tile 201 of the top, and hydraulic cylinder fixing base 2 passes through eave tile 201 and connects base 1. In another scheme, the hydraulic cylinder fixing seat 2 can also be directly arranged on the base 1.
The cylinder body of the first hydraulic cylinder 3 is arranged on the hydraulic cylinder fixing seat 2. The first hydraulic cylinder 3 of the present embodiment is a fast-propulsion hydraulic cylinder, and does not need to provide an excessive thrust force, but can achieve fast propulsion.
The slide assembly 4 includes a guide rail 41 and a slider 42. The guide rail 41 extends in the extending and retracting direction of the piston rod of the first hydraulic cylinder 3. In this embodiment, the guide rail 41 is provided on the upper surface of the side plate 202 of the filter press. Optionally, guide rails 41 are provided on both the left side plate and the right side plate to provide stable guidance for the forward and backward movement of the hydraulic cylinder support base 6. The guide rail 41 can also be used as a guide rail for filter plates of a filter press. The slider 42 is slidably disposed on the guide rail 41. The piston rod of the first hydraulic cylinder 3 is connected with the sliding block 42, and the first hydraulic cylinder 3 drives the sliding block 42 to slide along the guide rail 41.
The second hydraulic cylinder 5 is disposed on the upper surface of the slider 42, and a piston rod of the second hydraulic cylinder 5 is capable of extending and contracting in the vertical direction.
Pneumatic cylinder supporting seat 6 is connected second pneumatic cylinder 5, and second pneumatic cylinder 5 can drive pneumatic cylinder supporting seat 6 and go up and down. The hydraulic cylinder supporting seat 6 and the base 1 are arranged in parallel. First pneumatic cylinder 3 can drive pneumatic cylinder supporting seat 6 back-and-forth movement through slider 42, and second pneumatic cylinder 5 can drive pneumatic cylinder supporting seat 6 and go up and down.
As shown in fig. 4, the hydraulic cylinder support base 6 is provided with a second through hole 61 penetrating through the front end face and the rear end face of the hydraulic cylinder support base 6, the top of the hydraulic cylinder support base 6 is provided with a projection 62, the projection 62 extends out of the body of the hydraulic cylinder support base 6, and the projection 62 is used for connecting the second hydraulic cylinder 5.
The third hydraulic cylinder 7 is arranged on the hydraulic cylinder supporting seat 6. In this embodiment, the cylinder body of the third hydraulic cylinder 7 is mounted in the second through hole 61 of the hydraulic cylinder support base 6. The extension and retraction direction of the piston rod of the third hydraulic cylinder 7 is the same as the extension and retraction direction of the piston rod of the first hydraulic cylinder 3. The third hydraulic cylinder 7 is connected with a compacting plate 203 of the filter press.
The ejector rod 8 is arranged on the cylinder body of the third hydraulic cylinder 7, and the ejector rod 8 is arranged on one side, close to the base 1, of the third hydraulic cylinder 7. The lift pin 8 can penetrate the first through hole 11 of the base 1.
The driving structure 100 of this embodiment, when the filter press compresses tightly, the excessive pressure is not needed in the initial stage, the piston rod of the first hydraulic cylinder 3 stretches out, the pushing slide block 42, the hydraulic cylinder support seat 6, the third hydraulic cylinder 7, the top rod 8 and the pressing plate 203 advance rapidly, and stop after reaching the preset position, the top rod 8 moves out of the first through hole 11 of the base 1. The piston rod of the second hydraulic cylinder 5 extends out to push the hydraulic cylinder support seat 6, the third hydraulic cylinder 7, the ejector rod 8 and the pressing plate 203 to rise by a preset height, and the axis of the ejector rod 8 is basically flush with the corresponding horizontal partition plate 12 of the base 1. The piston rod of the third hydraulic cylinder 7 extends out to push the pressing plate 203 to advance by a larger thrust, so that the filter plate group is pressed tightly. When the third hydraulic cylinder 7 pushes the compacting plate 203 to advance, the mandril 8 props against the base 1 to provide supporting force for the third hydraulic cylinder 7.
When the filter plate group of the filter press needs to be separated, the piston rod of the third hydraulic cylinder 7 is retracted, and the pressing plate 203 is driven to retreat. The piston rod of the second hydraulic cylinder 5 is retracted to drive the hydraulic cylinder support seat 6, the third hydraulic cylinder 7, the ejector rod 8 and the pressing plate 203 to descend, and the ejector rod 8 descends to the axis of the first through hole 11 of the axis corresponding to the base 1. The piston rod of the first hydraulic cylinder 3 retracts, the sliding block 42, the hydraulic cylinder supporting seat 6, the third hydraulic cylinder 7, the ejector rod 8 and the pressing plate 203 are pushed to retreat, and the ejector rod 8 is inserted into the first through hole 11 of the base 1 to complete resetting.
This embodiment shortens the oil charge time of drive structure through the cooperation of first pneumatic cylinder 3 and third hydraulic pressure 7, improves the operating efficiency of pressure filter.
Optionally, the stroke of the first hydraulic cylinder 3 of this embodiment is about twice that of the third hydraulic cylinder 7, which shortens the stroke of the third hydraulic cylinder 7 and reduces the use of hydraulic oil. The first hydraulic cylinder 3 is quickly pushed, so that the working efficiency of the filter press is improved. The third hydraulic cylinder 7 has smaller stroke and lighter weight, so that the hydraulic cylinder supporting seat 6 can be changed from two traditional hydraulic cylinders into one hydraulic cylinder supporting seat, the whole volume of the hydraulic station is correspondingly reduced, and the whole weight of the filter press is reduced.
According to an optional technical scheme of this application, the quantity of first pneumatic cylinder 3 is two, and two first pneumatic cylinders 3 set up respectively in the both sides of pneumatic cylinder supporting seat 6. The number of the slide blocks 42 corresponding to the first hydraulic cylinder 3 is also two in order to provide more uniform thrust to the hydraulic cylinder support base 6.
As shown in fig. 5, according to an alternative embodiment of the present disclosure, the slider 42 includes a slider body 421 and a roller 422, the roller 422 is rotatably connected to the slider body 421, and the second hydraulic cylinder 5 is disposed on an upper surface of the slider body 421. The roller 422 can roll on the guide rail 41 to reduce the resistance of the slider 42 to slide on the guide rail 41.
As shown in fig. 6, according to an alternative embodiment of the present application, the driving structure 100 further includes a guiding assembly 9, and the guiding assembly 9 is used for guiding the lifting of the hydraulic cylinder support base 6, so as to improve the stability of the operation of the filter press.
Optionally, the guiding assembly 9 comprises: a guide sleeve 91 and a guide post 92. The guide sleeve 91 is arranged on the hydraulic cylinder support base 6. The guide post 92 is provided on the slider 42, and the guide post 92 slidably penetrates the guide sleeve 91. In another scheme, the guide sleeve 91 is arranged on the sliding block 42, and the guide column 92 is arranged on the hydraulic cylinder support seat 6.
As shown in fig. 7, the number of the third hydraulic cylinder 7 and the jack 8 is plural. And a top rod 8 is arranged on the cylinder body of each third hydraulic cylinder 7. A plurality of third hydraulic cylinders 7 are arranged in a rectangular array on the hydraulic cylinder support base 6. The third hydraulic cylinders 7 cooperate to provide a pushing force to the pressure plate 203 to increase the operating pressure of the filter press. By increasing the working pressure of the filter press by increasing the number of the third hydraulic cylinders 7, instead of increasing the working pressure of the filter press by increasing the working pressure of a single third hydraulic cylinder 7, the damage of the third hydraulic cylinder 7 to the sealing member can be reduced, and the service life of the press can be prolonged.
As shown in fig. 8, according to an alternative embodiment of the present application, the carrier rod 8 has a hollow structure. In this embodiment, the lift pin 8 has a through hole 81 to reduce the weight of the lift pin 8.
As shown in fig. 9, the present embodiment provides a filter press 200, the filter press 200 including: the drive structure 100, frame, hold-down plate 203, and filter plate pack 204 as described above. The frame includes a hook 201 and a side plate 202. The hook heads 201 are respectively arranged on two sides of the base 1, the two side plates 202 are respectively arranged on two sides of the base, and the two side plates 202 are connected with the base 1 through the hook heads 201. The two guide rails 41 are respectively provided on the two side plates 202. The compacting plate 203 is connected with a piston rod of the third hydraulic cylinder 7, and the third hydraulic cylinder 7 drives the compacting plate 203 to move. The compression plate 203 is capable of compressing the collection of filter plates 204.
An embodiment of the present application provides a control method of a filter press, including:
a piston rod of the first hydraulic cylinder extends out to push the sliding block to move forwards, and the ejector rod moves out of the first through hole of the base;
a piston rod of the second hydraulic cylinder extends out to push the hydraulic cylinder supporting seat to rise;
a piston rod of the third hydraulic cylinder extends out to push the pressing plate to move forwards, and the ejector rod abuts against the base;
a piston rod of the third hydraulic cylinder retracts to drive the pressing plate to move backwards;
a piston rod of the second hydraulic cylinder retracts to drive the hydraulic cylinder supporting seat to descend;
the piston rod of the first hydraulic cylinder is retracted to drive the sliding block to move backwards, and the ejector rod is inserted into the first through hole of the base.
The embodiments of the present application are described in detail above. The principle and the implementation of the present application are explained herein by applying specific examples, and the above description of the embodiments is only used to help understand the technical solutions and the core ideas of the present application. Therefore, the person skilled in the art should, according to the idea of the present application, change or modify the embodiments and applications of the present application based on the scope of protection of the present application. In view of the above, the description should not be taken as limiting the application.
Claims (9)
1. A drive arrangement for a filter press, comprising:
a base provided with a first through hole;
the hydraulic cylinder fixing seat is connected with the base;
the first hydraulic cylinder is arranged on the hydraulic cylinder fixing seat;
the sliding assembly comprises a guide rail and a sliding block, the guide rail extends along the telescopic direction of the first hydraulic cylinder, the sliding block is arranged on the guide rail in a sliding mode, and a piston rod of the first hydraulic cylinder is connected with the sliding block;
the second hydraulic cylinder is arranged on the sliding block;
the hydraulic cylinder supporting seat is connected with the second hydraulic cylinder, and the second hydraulic cylinder drives the hydraulic cylinder supporting seat to lift;
the third hydraulic cylinder is arranged on the hydraulic cylinder supporting seat;
and the ejector rod is arranged on the cylinder body of the third hydraulic cylinder and can penetrate into the first through hole of the base.
2. The driving structure for filter press according to claim 1, wherein the number of the first hydraulic cylinders is two, and two of the first hydraulic cylinders are respectively disposed on both sides of the hydraulic cylinder support base.
3. The driving structure for filter presses according to claim 1, wherein the slide block is provided with a roller capable of rolling on the guide rail.
4. The driving structure for filter presses of claim 1, further comprising a guide assembly for guiding the lifting of the hydraulic cylinder support base.
5. The driving structure for filter press according to claim 4, wherein said guide assembly comprises:
the guide sleeve is arranged on the hydraulic cylinder supporting seat;
and the guide post is arranged on the sliding block and can penetrate into the guide sleeve in a sliding manner.
6. The driving structure for filter press according to claim 1, wherein the number of the third hydraulic cylinder and the lift pin is plural.
7. The driving structure for filter press according to claim 1, wherein the lift pin is a hollow structure.
8. A filter press, comprising:
the driving structure for a filter press according to any one of claims 1 to 7;
the driving structure is arranged on the rack;
and the compression plate is connected with a piston rod of the third hydraulic cylinder.
9. A method of controlling a filter press according to claim 8, comprising:
the first hydraulic cylinder works to push the sliding block to move forwards, and the ejector rod moves out of the first through hole of the base;
the second hydraulic cylinder works to push the hydraulic cylinder supporting seat to ascend;
the third hydraulic cylinder works to push the pressing plate to move forwards, and the ejector rod abuts against the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210124304.3A CN114570076A (en) | 2022-02-10 | 2022-02-10 | Driving structure for filter press, filter press and control method of filter press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210124304.3A CN114570076A (en) | 2022-02-10 | 2022-02-10 | Driving structure for filter press, filter press and control method of filter press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114570076A true CN114570076A (en) | 2022-06-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210124304.3A Pending CN114570076A (en) | 2022-02-10 | 2022-02-10 | Driving structure for filter press, filter press and control method of filter press |
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| Country | Link |
|---|---|
| CN (1) | CN114570076A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115467874A (en) * | 2022-07-07 | 2022-12-13 | 上海同臣环保有限公司 | Middle support device for oil cylinder of filter press |
-
2022
- 2022-02-10 CN CN202210124304.3A patent/CN114570076A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115467874A (en) * | 2022-07-07 | 2022-12-13 | 上海同臣环保有限公司 | Middle support device for oil cylinder of filter press |
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