CN113457238A - Movable type through-stop valve of filter press - Google Patents

Movable type through-stop valve of filter press Download PDF

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Publication number
CN113457238A
CN113457238A CN202110895272.2A CN202110895272A CN113457238A CN 113457238 A CN113457238 A CN 113457238A CN 202110895272 A CN202110895272 A CN 202110895272A CN 113457238 A CN113457238 A CN 113457238A
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CN
China
Prior art keywords
valve
filter
rod
valve body
filter press
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Withdrawn
Application number
CN202110895272.2A
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Chinese (zh)
Inventor
盛金平
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Individual
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Individual
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Priority to CN202110895272.2A priority Critical patent/CN113457238A/en
Publication of CN113457238A publication Critical patent/CN113457238A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/60—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration
    • B01D29/606—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration by pressure measuring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
    • B01D29/90—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for feeding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
    • B01D29/92—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for discharging filtrate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
    • B01D29/94—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for discharging the filter cake, e.g. chutes

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)

Abstract

The invention discloses a movable through-stop valve of a filter press, which comprises a valve body and a valve core, wherein the valve body is of a cylindrical structure and is arranged in a cylinder body of the filter press in a sliding manner, the valve body is driven by a reciprocating propulsion device to move back and forth along the inner wall of the cylinder body of the filter press, a detachable filter plate is arranged at the front end of the valve body, and the valve core is driven by a valve core driver to move back and forth to conduct or stop an internal flow passage of the valve body. The through-stop valve can move back and forth in the pressure filter cylinder body and is in coordination with a corresponding valve on the pressure filter cylinder body in the moving process, the flow direction of filtrate and the internal pressure of the pressure filter cylinder body are controlled by the through-stop valve, the automatic operation of feeding, pressure-filtering thick slurry, discharging filtrate and filter cakes and back flushing the filter plates is realized, the structure is simple, the manufacturing cost is low, the pressure-filtering efficiency and effect are greatly improved, and the time, the labor and the time are saved.

Description

Movable type through-stop valve of filter press
Technical Field
The invention relates to the technical field of filter presses for solid-liquid separation, in particular to a movable through-stop valve of a filter press.
Background
A mechanical device for dialyzing liquid by applying a certain pressure to a subject by using a special filter medium in a filter press is a common solid-liquid separation device.
When the existing filter press is used for filtering, a material (slurry) is injected into a filtering chamber with a filter plate by a feed pump, particles in the material are intercepted by filter cloth or other filtering media arranged on the filter plate, the particles are left in the filtering chamber, filtrate is discharged from a liquid outlet, so that a filter cake is formed in the filtering chamber, then the filter plate is pulled open by a plate pulling device of the filter press, the filter cake automatically falls, and the filter cake is removed, so that the purpose of filtering is achieved.
The filter cake obtained after filter pressing contains viscosity, so the filter plate is easy to stick and is not easy to fall off naturally; meanwhile, the filter holes in the filter plates are easy to block, the filter pressing efficiency is affected, manual shoveling or high-pressure water washing is often needed, time and labor are wasted, and the filter cloth is easy to damage.
In addition, since the slurry to be pressure-filtered has a high concentration, a high-power feed pump needs to be separately provided, which undoubtedly increases the operation and management costs. Moreover, because the volume and volume difference of the filter chamber of the existing filter press are often fixed and unchangeable, when equal amount of slurry with different concentrations enters, a large difference occurs in the solid-to-liquid ratio of the filter cake, the filter cake needs to be reprocessed, for example, the water content of the filter cake is high (the solid-to-liquid ratio is low), the filter cake needs to be further concentrated, and the corresponding transportation cost is increased.
Disclosure of Invention
The invention aims to overcome the defects and shortcomings of the prior art and provide a movable through-stop valve of a filter press, which realizes the automatic operation of feeding, filter pressing of thick slurry, discharge of filtrate and filter cake and back flushing of a filter plate so as to improve the filter pressing efficiency and effect.
In order to achieve the purpose, the invention provides the following technical scheme:
a movable through-stop valve of a filter press is characterized in that: the filter press comprises a valve body and a valve core, wherein the valve body is of a cylindrical structure and is slidably arranged in a cylinder body of the filter press, the valve body is driven by a reciprocating propulsion device to move back and forth along the inner wall of the cylinder body of the filter press, a detachable filter plate is arranged at the front end of the valve body, and the valve core is driven by a valve core driver to move back and forth to conduct or stop an internal flow passage of the valve body.
Furthermore, the rear end of the valve body is fixedly connected with a hollow pushing rod connecting support.
Furthermore, the reciprocating propulsion device and the valve core driver are respectively arranged behind the cylinder body of the filter press.
Furthermore, the reciprocating propulsion device adopts a double-rod hydraulic cylinder, two propulsion rods and pistons of the double-rod hydraulic cylinder are coaxially arranged and are of a hollow structure, wherein the front propulsion rod extends forwards to the inside of the filter press cylinder body and is fixedly connected with the propulsion rod connecting support, and the rear propulsion rod extends backwards.
Furthermore, the valve core driver adopts a single-rod hydraulic cylinder, a cylinder barrel of the single-rod hydraulic cylinder is fixedly connected with the rear end of a rear pushing rod of the double-rod hydraulic cylinder, the pushing rod of the single-rod hydraulic cylinder is fixedly connected with a valve core control rod, and the valve core control rod sequentially slides forwards to penetrate through the rear pushing rod, the piston, the front pushing rod and the pushing rod connecting support of the double-rod hydraulic cylinder and is fixedly connected with the valve core.
Furthermore, a plurality of sealing rings are respectively nested on the outer wall of the valve body.
Furthermore, the plate surface of the filter plate is full of dense and transparent small holes.
Compared with the prior art, the invention has the beneficial effects that:
1. the through-stop valve can move back and forth in the pressure filter cylinder body, is in coordination with a corresponding valve on the pressure filter cylinder body in the moving process, controls the flow direction of filtrate and the internal pressure of the pressure filter cylinder body through the through-stop valve, realizes the automatic operation of feeding, pressure-filtering thick slurry, discharging filtrate and filter cakes and back flushing the filter plates, has simple structure and low manufacturing cost, greatly improves the pressure-filtering efficiency and effect, and saves time, labor and time.
2. The invention adopts the double-rod hydraulic cylinder and the single-rod hydraulic cylinder to respectively drive the valve body and the valve core to move correspondingly, wherein two push rods and pistons of the double-rod hydraulic cylinder both adopt hollow structures, so that a valve core control rod connected with the push rod of the single-rod hydraulic cylinder can conveniently penetrate through the hollow structures, and a cylinder barrel of the single-rod hydraulic cylinder is fixedly connected with the rear end of a rear push rod of the double-rod hydraulic cylinder, so that the synchronous movement of the valve body and the valve core is realized, the independent movement of the valve core is realized to conduct or stop an internal flow passage of the valve body, the normal operation of feeding, thick slurry press-filtering, filtrate and filter cake discharging and reverse flushing is ensured, the efficient work is realized by a simple structure, the cooperativity is high, excessive space is not occupied, the manufacturing cost is low, and the maintenance is labor-saving.
3. The filter plate adopts a detachable design, and is convenient to install and maintain.
Drawings
Fig. 1 is a schematic structural diagram of an open/close valve according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a check valve according to a first embodiment of the present invention when the check valve is closed.
Fig. 3 is a schematic structural diagram of an elastic damper according to an embodiment of the present invention.
FIG. 4 is a schematic structural diagram of a filter press according to an embodiment of the present invention under a condition of sucking thick slurry into the interior of the cylinder of the filter press.
FIG. 5 is a schematic structural diagram of a filter-pressing thick slurry working condition according to an embodiment of the present invention.
FIG. 6 is a schematic diagram of the structure of the back-flushing filter plate according to one embodiment of the present invention.
Fig. 7 is a schematic structural diagram of a check valve according to a second embodiment of the present invention when the check valve is opened.
Fig. 8 is a schematic structural diagram of a through/off valve according to a second embodiment of the present invention when closed.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1-6, a movable through/stop valve for a filter press comprises a valve body 1 and a valve core 2, wherein the valve body 1 is of a cylindrical structure and is slidably mounted inside a cylinder 4 of the filter press, the valve body 1 is driven by a reciprocating propulsion device 5 to move back and forth along the inner wall of the cylinder 4 of the filter press, a detachable filter plate 3 is mounted at the front end of the valve body 1, and the valve core 2 is driven by a valve core driver 6 to move back and forth to open or close an internal flow passage of the valve body 1.
It should be noted that the outer diameter of the valve body 1 in this embodiment is slightly smaller than the inner diameter of the filter press cylinder 4, and the inner diameter of the rear port of the valve body 1 is smaller than the inner diameter of the front port, so that a valve seat spigot structure is formed at the rear port of the valve body 1; the valve core 2 is positioned at the rear side of the rear port of the valve body 1, the valve core 2 moves forwards or backwards under the driving of the valve core driver 6, and when the valve core 2 moves forwards, the valve core 2 is pressed against the outer end surface (the valve seat seam allowance) of the rear port of the valve body 1, so that the internal flow channel of the valve body 1 is cut off; when moving backward, the valve core 2 is separated from the rear port (valve seat spigot) of the valve body 1, and the internal flow passage of the valve body 1 is communicated.
In this embodiment, the front end of the cylinder 4 of the filter press is open and fixedly connected with a compacting chamber 7 communicated with the cylinder, and the front end of the compacting chamber 7 is provided with an elastic damper 8 capable of plugging the front end thereof.
The compacting chamber 7 is a conical cylinder structure with a small front part and a big back part, so that filter residues can be better promoted to be gradually accumulated in the compacting chamber 7 under the bidirectional extrusion action of the elastic damper 8 and the forward-moving through-stop valve to form a filter cake.
In addition, the elastic damper 8 comprises a throat 81 fixedly connected with the front end of the compaction chamber 7 and a pressure plate 82 capable of blocking the front end port of the throat 81, a bracket 83 extending forwards is fixedly connected to the outer wall of the throat 81, a limiting plate 84 is fixedly connected to the front end of the bracket 83, a through hole is formed in the middle of the limiting plate 84 and is fixedly connected with a guide pipe 85, the outer wall of the guide pipe 85 is provided with threads and is screwed with a first adjusting nut 86, and a spring 87 is nested between the pressure plate 82 and the first adjusting nut 86 outside the guide pipe 85; a transverse shaft 88 is fixedly connected to the front side of the pressure plate 82, the transverse shaft 88 penetrates the guide pipe 85 forwards and extends out, the transverse shaft 88 is in sliding fit with the inner wall of the guide pipe 85, and the extending end of the transverse shaft 88 is provided with external threads and is screwed with a second adjusting nut 89.
During use, by rotating the first adjusting nut 86 forward or backward, the magnitude of the elastic force of the spring 87, i.e., the magnitude of the pressure that the elastic damper 8 can bear, can be adjusted. Specifically, when the first adjusting nut 86 is rotated forward, the spring 87 is relatively extended, so that the elastic force of the spring 87, that is, the pressure that the elastic damper 8 can bear, can be reduced; when the first adjusting nut 86 is screwed backward, the spring 87 is relatively compressed, and the elastic force of the spring 87, that is, the pressure that the elastic damper 8 can bear, can be increased. Therefore, the solid-liquid ratio of the filter cake can be better ensured.
In addition, by rotating the second adjusting nut 89 forward or backward, the amount of movement of the horizontal shaft 88 along the inner wall of the guide tube 85 can be adjusted, ensuring that the pressure plate 82 can block the front end of the throat 81, i.e., the front end of the compression chamber 7.
And the limiting disc 84 can limit the first adjusting nut 86 and the second adjusting nut 89.
In this embodiment, a sealing cover 9 is fixedly connected to the rear end of the cylinder 4 of the filter press, a through hole is formed in the middle of the sealing cover 9, and a sealing ring (not shown) is disposed on the inner wall of the through hole.
In this embodiment, the side walls of the front and rear ends of the cylinder 4 of the filter press are respectively and correspondingly provided with a dense slurry inlet 10 and a filtrate outlet 11, and the dense slurry inlet 10 and the filtrate outlet 11 are respectively and correspondingly connected with a feed valve 12 and a discharge valve 13.
In this embodiment, the rear end of the valve body 1 is fixedly connected with a hollow pushing rod connecting bracket 14. Therefore, the connection between the front push rod 51 of the reciprocating propulsion device 5 and the valve body 1 is convenient, and the reciprocating propulsion device 5 drives the valve body 1 to move back and forth along the inner wall of the filter press cylinder body 4; meanwhile, the valve core control rod 15 is ensured to penetrate through and be connected with the valve core 2, and the normal circulation of the filtrate is not influenced.
In this embodiment, the reciprocating propulsion device 5 and the valve core driver 6 are respectively arranged behind the filter press cylinder 4.
Correspondingly, the reciprocating propulsion device 5 adopts a double-rod hydraulic cylinder, two propulsion rods of the double-rod hydraulic cylinder, namely a front propulsion rod 51 and a rear propulsion rod 52, and a piston (not shown in the figure) are coaxially arranged and are of a hollow structure, wherein the front propulsion rod 51 forwards passes through a through hole in the middle of the sealing cover 9 and then extends to the inside of the filter press cylinder body 4, and is fixedly connected with the propulsion rod connecting bracket 14, and the rear propulsion rod 52 backwards extends.
Correspondingly, the valve core driver 6 adopts a single-rod hydraulic cylinder, a cylinder 61 of the single-rod hydraulic cylinder is fixedly connected with the rear end of the rear push rod 52 of the double-rod hydraulic cylinder, a push rod 62 of the single-rod hydraulic cylinder is fixedly connected with a valve core control rod 15, and the valve core control rod 15 sequentially slides forwards to penetrate through the rear push rod 52, the piston, the front push rod 51 and the push rod connecting bracket 14 of the double-rod hydraulic cylinder and is fixedly connected with the valve core 2.
In this embodiment, the outer wall of the valve body 1 is respectively nested with a plurality of sealing rings 16. Therefore, on the basis of not influencing the forward and backward movement of the valve body 1 along the inner wall of the filter press cylinder body 4 and the forward and backward movement of the front propelling rod 51 of the reciprocating propelling device 5, the sealing effect can be ensured, and the phenomena of 'running, overflowing, dripping and liquid leakage' are avoided.
In this embodiment, the surface of the filter plate 3 is covered with dense and transparent pores (not shown, the same applies below).
This embodiment is further described below in conjunction with FIGS. 1-6:
firstly, a feed valve 12 and a discharge valve 13 are opened, a push rod 62 of a single-rod hydraulic cylinder (namely, a valve core driver 6, the same below) extends out, a valve core 2 is pushed to move forwards through a valve core control rod 15, and an internal flow passage of a valve body 1 is cut off; meanwhile, two pushing rods (namely a front pushing rod 51 and a rear pushing rod 52, the same below) of the double-rod hydraulic cylinder (namely the reciprocating pushing device 5, the same below) move backwards to drive the valve body 1 to move backwards along the inner wall of the filter press cylinder body 4, so that negative pressure is formed inside the filter press cylinder body 4 on the front side of the valve body 1, thick slurry is sucked into the filter press cylinder body 4 from the thick slurry inlet 10, and the suction of the thick slurry is stopped until the valve body 1 reaches the maximum stroke of the backward movement.
Then, when the valve body 1 reaches the maximum stroke of backward movement, two pushing rods of the double-rod hydraulic cylinder both move forward to drive the valve body 1 to move forward along the inner wall of the filter press cylinder body 4; meanwhile, the feeding valve 12 is closed, the pushing rod 62 of the single-rod hydraulic cylinder retracts, the valve core 2 is driven to move backwards through the valve core control rod 15, and the internal flow passage of the valve body 1 is conducted; in the process that the valve body 1 moves forwards, the thick slurry in the cylinder body 4 of the filter press is compressed forwards until the valve body 1 reaches the maximum stroke of the forward movement, and the thick slurry compression is stopped; in the process of compressing the thick slurry, the thick slurry is filtered by the filter plate 3 to cause solid-liquid separation, and the filtrate thus formed flows into the interior of the filter press cylinder 4 on the rear side of the valve body 1 from the internal flow passage of the valve body 1 and is discharged through the filtrate outlet 11.
Then, the filter residue formed by the compression and filtration is gradually accumulated in the compacting chamber 7 to form a filter cake under the bidirectional pressing action of the elastic damper 8 and the valve body 1 moving forward.
Finally, when the pressing force of the accumulated filter cake against the elastic damper 8 exceeds the pressure that the elastic damper 8 can withstand, the filter cake pushes against the platen 82 and is gradually discharged.
When the press cake pushes the press plate 82, the press plate 82 pushes the transverse shaft 88 to move forward along the inner wall of the guide pipe 85, the guide pipe 85 is kept still, the first adjusting nut 86 is kept still, the spring 87 compresses to store energy, the front port of the throat 81 is opened, namely the front port of the compaction chamber 7 is opened, and the press cake is discharged gradually.
In addition, when the small holes on the plate surface of the filter plate 3 are blocked and need to be cleaned, the feed valve 12 and the discharge valve 13 are closed when the valve body 1 starts to move forwards along the inner wall of the filter press cylinder 4; meanwhile, the pushing rod 62 of the single-rod hydraulic cylinder retracts, the valve core 2 is driven to move backwards through the valve core control rod 15, an internal flow passage of the valve body 1 is conducted, and filtrate formed by compression and filtration is gradually gathered in the pressure filter cylinder body 4 on the rear side of the valve body 1; when the valve body 1 reaches the maximum stroke of forward movement, the feed valve 12 is opened, meanwhile, two pushing rods of the double-rod hydraulic cylinder all move backwards to drive the valve body 1 to move backwards along the inner wall of the filter press cylinder body 4, in the process that the valve body 1 moves backwards, the space inside the filter press cylinder body 4 on the rear side of the valve body 1 is gradually compressed, so that filtrate collected inside the filter press cylinder body 4 on the rear side of the valve body 1 reversely rushes through small holes in the plate surface of the filter plate 3, the reverse flushing of the filter plate 3 is realized, and blockage is cleared.
Example two
Referring to fig. 7 and 8, in the present embodiment, the valve body 1 is a cylindrical structure, the push rod connecting bracket 14 is also a cylindrical structure, the outer diameters of the valve body 1 and the push rod connecting bracket 14 are both slightly smaller than the inner diameter of the filter press cylinder 4, and the inner diameter of the front port of the push rod connecting bracket 14 is smaller than the inner diameter of the rear port of the valve body 1, so that a valve seat spigot structure is formed at the front port of the push rod connecting bracket 14; in addition, the rear end of the pushing rod connecting bracket 14 is hollow.
The valve core 2 is positioned in the valve body 1, the valve core 2 moves forwards or backwards under the driving of the valve core driver 6, and when the valve core 2 moves backwards, the valve core 2 is pressed on the outer end surface (valve seat spigot) of the front port of the push rod connecting support 14 to realize the stopping of the internal flow passage of the valve body 1; when moving forward, the valve core 2 is separated from the front port (valve seat spigot) of the push rod connecting bracket 14, and the internal flow passage of the valve body 1 is communicated.
The present embodiment also includes other components having the same structure and function as the first embodiment, and will not be described in detail.
Although the present description is described in terms of embodiments, not every embodiment includes only a single embodiment, and such description is for clarity only, and those skilled in the art should be able to integrate the description as a whole, and the embodiments can be appropriately combined to form other embodiments as will be understood by those skilled in the art.
Therefore, the above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application; all changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims (7)

1. A movable through-stop valve of a filter press is characterized in that: the filter press comprises a valve body and a valve core, wherein the valve body is of a cylindrical structure and is slidably arranged in a cylinder body of the filter press, the valve body is driven by a reciprocating propulsion device to move back and forth along the inner wall of the cylinder body of the filter press, a detachable filter plate is arranged at the front end of the valve body, and the valve core is driven by a valve core driver to move back and forth to conduct or stop an internal flow passage of the valve body.
2. A mobile through-stop valve for filter presses according to claim 1, characterised in that: the rear end fixedly connected with valve body has the propulsion pole linking bridge of fretwork.
3. A mobile through-stop valve for filter presses according to claim 1, characterised in that: the reciprocating propulsion device and the valve core driver are respectively arranged behind the cylinder body of the filter press.
4. A mobile through-stop valve for filter presses according to claim 2 or 3, characterised in that: the reciprocating type propelling device adopts a double-rod hydraulic cylinder, two propelling rods and a piston of the double-rod hydraulic cylinder are coaxially arranged and are of a hollow structure, wherein the front propelling rod extends forwards to the inside of the filter press cylinder body and is fixedly connected with the propelling rod connecting support, and the rear propelling rod extends backwards.
5. The movable through-stop valve for a filter press according to claim 4, wherein: the valve core driver adopts a single-rod hydraulic cylinder, a cylinder barrel of the single-rod hydraulic cylinder is fixedly connected with the rear end of a rear pushing rod of the double-rod hydraulic cylinder, a valve core control rod is fixedly connected with the pushing rod of the single-rod hydraulic cylinder, and the valve core control rod sequentially slides forwards to penetrate through the rear pushing rod, a piston, a front pushing rod and a pushing rod connecting support of the double-rod hydraulic cylinder and is fixedly connected with the valve core.
6. A mobile through-stop valve for filter presses according to claim 1, characterised in that: and the outer wall of the valve body is respectively nested with a plurality of sealing rings.
7. A mobile through-stop valve for filter presses according to claim 1, characterised in that: the plate surface of the filter plate is full of dense and transparent small holes.
CN202110895272.2A 2021-08-05 2021-08-05 Movable type through-stop valve of filter press Withdrawn CN113457238A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110895272.2A CN113457238A (en) 2021-08-05 2021-08-05 Movable type through-stop valve of filter press

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110895272.2A CN113457238A (en) 2021-08-05 2021-08-05 Movable type through-stop valve of filter press

Publications (1)

Publication Number Publication Date
CN113457238A true CN113457238A (en) 2021-10-01

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Application Number Title Priority Date Filing Date
CN202110895272.2A Withdrawn CN113457238A (en) 2021-08-05 2021-08-05 Movable type through-stop valve of filter press

Country Status (1)

Country Link
CN (1) CN113457238A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117085391A (en) * 2023-10-20 2023-11-21 深圳市壹格锐科技有限公司 Self-cleaning sewage filtering device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117085391A (en) * 2023-10-20 2023-11-21 深圳市壹格锐科技有限公司 Self-cleaning sewage filtering device
CN117085391B (en) * 2023-10-20 2024-01-12 深圳市壹格锐科技有限公司 Self-cleaning sewage filtering device

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Application publication date: 20211001