CN112485190B

CN112485190B - Filter-pressing testing arrangement

Info

Publication number: CN112485190B
Application number: CN202011328306.1A
Authority: CN
Inventors: 杨俊欢; 闫武军; 翟忠宝; 朱立波; 耿丽霞
Original assignee: JIANGSU FEYMER TECHNOLOGY CO LTD
Current assignee: JIANGSU FEYMER TECHNOLOGY CO LTD
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2023-05-30
Anticipated expiration: 2040-11-24
Also published as: CN112485190A

Abstract

The invention discloses a filter pressing testing device which comprises a rack, an outer sleeve fixedly arranged on the rack, a first pore plate fixedly abutted against one end of the outer sleeve, an inner sleeve which can be inserted and pulled in the axial line direction of the inner sleeve and is arranged in the outer sleeve, two second pore plates which can move along the axial line direction of the inner sleeve and are abutted against the inner sleeve, a water receiving disc which is arranged on the rack and is positioned below the outer sleeve, a hydraulic driving mechanism which is arranged on the rack and is used for driving one second pore plate to move in the inner sleeve, and a measuring mechanism which is arranged on the outer sleeve and is used for measuring the displacement of the second pore plate. According to the filter pressing testing device, drainage is thorough during filter pressing, materials can be conveniently taken out after the filter pressing is finished, and the maximum testing pressure is high.

Description

Filter-pressing testing arrangement

Technical Field

The invention relates to a filter pressing testing device.

Background

At present, a filter pressing experiment on materials is generally realized through a testing device. The existing testing device is generally driven by air pressure, the maximum pressure is low, and the pressure requirement of the field plate frame machine cannot be simulated. In the compression process, the water produced by the materials cannot be well discharged, and the test result is affected. After compression is completed, the materials are difficult to take out, and the workload of testing is increased.

Disclosure of Invention

The invention aims to provide a filter pressing testing device, which has the advantages that the water is thoroughly discharged during filter pressing, the materials can be conveniently taken out after the filter pressing is finished, and the maximum testing pressure is higher.

In order to achieve the above purpose, the invention adopts the following technical scheme:

the utility model provides a filter-pressing testing arrangement, includes the frame, set firmly in outer sleeve in the frame, fixed ring support in the first orifice plate of outer sleeve one end, can follow the direction of self axial lead to pull out the plug locate inner skleeve in the outer sleeve, two can follow the axial lead direction of inner skleeve activity and ring support in second orifice plate in the inner skleeve, locate in the frame and be located the water collector of outer sleeve below, locate in the frame and be used for driving one of them the hydraulic drive mechanism of second orifice plate motion in the inner skleeve, locate on the outer sleeve and be used for getting the measuring mechanism of second orifice plate displacement.

Preferably, the second orifice plate comprises a plate body and a sealing ring sleeved on the plate body and abutted against the inner sleeve.

More preferably, the second orifice plate further comprises a plurality of circles of through holes which are arranged along the circumferential direction and are formed in the plate body, and annular grooves and radial grooves which are concavely formed in the surface of the plate body and are used for communicating the through holes.

Preferably, the hydraulic driving mechanism comprises a hydraulic station, an oil cylinder fixedly arranged on the frame, a push rod which is arranged in the oil cylinder and can stretch out and draw back along the length extension direction of the oil cylinder, a part of the push rod is used for entering from the other end of the outer sleeve and pushing the second pore plate, an oil inlet pipeline and an oil outlet pipeline which are connected between the oil cylinder and the hydraulic station, and pressure switches which are arranged on the oil inlet pipeline and the oil outlet pipeline in a one-to-one correspondence manner.

More preferably, the hydraulic driving mechanism further comprises a pressure reducing valve, a throttle valve and a pressure gauge which are arranged on the oil inlet pipeline.

More preferably, the hydraulic driving mechanism further comprises a control unit which is arranged on the frame and used for controlling the manual and/or automatic extension and contraction of the push rod.

More preferably, the outer sleeve, the first orifice plate, the inner sleeve, the second orifice plate and the push rod are all coaxially arranged, and the axis lines thereof extend in the horizontal direction.

Preferably, the measuring mechanism is a vernier caliper.

Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: according to the filter pressing testing device, two second pore plates for extruding materials which are matched with each other are arranged in the inner sleeve, and the first pore plate is arranged at one end of the outer sleeve, so that water produced by the materials in the inner sleeve can be thoroughly discharged during filter pressing; after the press filtration is completed, the inner sleeve is taken out from the outer sleeve, and the second pore plate is taken out, so that the materials in the inner sleeve can be conveniently taken out; by adopting the hydraulic driving mechanism, the maximum test pressure of the device is higher, and the pressure requirement of the field plate frame machine can be simulated.

Drawings

FIG. 1 is a schematic diagram of the structure of the device of the present invention;

fig. 2 is a schematic structural view of the second orifice plate.

Wherein: 1. a frame; 2. an outer sleeve; 3. an inner sleeve; 4. a second orifice plate; 41. a plate body; 42. a seal ring; 43. a through hole; 44. an annular groove; 45. a radial groove; 5. a water receiving tray; 6. an oil cylinder; 7. a push rod; 8. a pressure switch; 9. a pressure reducing valve; 10. a throttle valve; 11. a pressure gauge; 12. a control unit; 13. a vernier caliper; 14. manual/automatic switch button; 15. a forward button; 16. a back button; 17. and a time controller.

Detailed Description

The technical scheme of the invention is further described below with reference to the accompanying drawings.

Referring to fig. 1-2, the filter pressing testing device comprises a frame 1, an outer sleeve 2 fixedly arranged on the frame 1, a first pore plate fixedly abutted against one end of the outer sleeve 2, an inner sleeve 3 which can be inserted and pulled out along the axial line direction of the inner sleeve 2 and is arranged in the outer sleeve 2, two second pore plates 4 which can move along the axial line direction of the inner sleeve 3 and are abutted against the inner sleeve 3, and a water receiving disc 5 which is arranged on the frame 1 and is positioned below the outer sleeve 2.

Referring to fig. 1, in the present embodiment, an outer sleeve 2 is fixedly connected to a housing 1 by its side and bottom portions. The first orifice plate is connected at the left end of outer sleeve 2, and both integrated into one piece. The outer sleeve 2, the first pore plate, the inner sleeve 3 and the second pore plate 4 are all coaxially arranged, and the axial lines of the outer sleeve 2, the first pore plate, the inner sleeve 3 and the second pore plate extend along the horizontal direction. The inner diameter of the outer sleeve 2 is the same as the outer diameter of the inner sleeve 3.

Referring to fig. 2, the second orifice plate 4 includes a plate body 41, a sealing ring 42 sleeved on the plate body 41 and abutted against the inner sleeve 3, a plurality of circles of through holes 43 arranged along the circumferential direction and formed on the plate body 41, an annular groove 44 concavely formed on the surface of the plate body 41 and used for communicating the through holes 43, and a radial groove 45. The plate 41 is circular, and the seal ring 42 is annular. In this embodiment, three circles of through holes 43 are formed in the plate 41. By providing the annular groove 44 and the radial groove 45, the water produced by the material in the inner sleeve 3 can be completely discharged during the filter pressing. The water discharged from the left second orifice plate 4 flows downwards into the water receiving disc 5 from the first orifice plate at the left end, and the water discharged from the right second orifice plate 4 directly flows downwards into the water receiving disc 5 from the right end of the outer sleeve 2.

During filter pressing, the second orifice plate 4 on the left side is abutted against the first orifice plate on the left end, and the second orifice plate 4 on the right side is pressed to extrude materials between the two second orifice plates 4.

The filter pressing testing device further comprises a hydraulic driving mechanism which is arranged on the frame 1 and used for driving the second pore plate 4 on the right side to move in the inner sleeve 3, and a measuring mechanism which is arranged on the outer sleeve 2 and used for measuring the displacement of the second pore plate 4 on the right side. In this embodiment, the measuring mechanism is a vernier caliper 13, the vernier caliper 13 is mounted on the upper surface of the outer sleeve 2, and the ruler body marked with scales is parallel to the outer sleeve 2. The hydraulic pressure is used as power, the highest pressure can reach about 30Bar, and the pressure requirement of the field plate frame machine can be simulated.

The hydraulic driving mechanism comprises a hydraulic station (not shown in the figure), an oil cylinder 6 fixedly arranged on the frame 1, and a push rod 7 which can extend and retract along the length extension direction of the push rod and is arranged in the oil cylinder 6. The left end of the push rod 7 is used for entering from the right end of the outer sleeve 2 and pushing the right second pore plate 4 leftwards so as to realize the compression of materials. In the present embodiment, the push rod 7 is arranged coaxially with the second orifice plate 4.

The hydraulic driving mechanism further comprises an oil inlet pipeline and an oil outlet pipeline which are connected between the oil cylinder 6 and the hydraulic station, pressure switches 8 which are arranged on the oil inlet pipeline and the oil outlet pipeline in a one-to-one correspondence mode, a pressure reducing valve 9, a throttle valve 10 and a pressure gauge 11 which are arranged on the oil inlet pipeline, and a control unit 12 which is arranged on the frame 1 and used for controlling the push rod 7 to stretch out and draw back manually and/or automatically. The pressure gauge 11 is used for observing the oil pressure, and the oil pressure is regulated by the relief valve 9. The throttle valve 10 is used to regulate the flow rate of hydraulic oil in the line.

The control unit 12 includes a manual/automatic switching button 14, a forward button 15, a reverse button 16, and a time controller 17. The time controller 17 controls the advancing and retreating time of the oil cylinder 6; the timing start and stop of the time controller 17 is controlled by the pressure switch 8. When switching to the manual button, the forward button 15 is pressed, the oil cylinder 6 moves leftward, and the backward button 16 is pressed, the oil cylinder 6 moves rightward. When the automatic button is switched, the forward button 15 is pressed, the oil cylinder 6 automatically moves leftwards, and after the set time of the time controller 17 is reached, the oil cylinder 6 automatically resets rightwards.

During testing, under certain pressure conditions, it is desirable to avoid extrusion of material from the through holes 43 of the second orifice plate 4 while at the same time providing as much moisture as possible in the extruded material. After the test is completed, the length of the material in the inner sleeve 3 is read by the vernier caliper 13 and recorded. The push rod 7 is reset and then the inner sleeve 3 is taken out, the second pore plate 4 at the left end part is detached, and materials in the inner sleeve 3 can be conveniently taken out.

One hydraulic station can drive a plurality of oil cylinders 6 simultaneously, carries out the filter-pressing to the material in a plurality of inner skleeves 3 to improve efficiency of software testing by a wide margin.

The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.

Claims

1. A filter-pressing testing arrangement, its characterized in that: the device comprises a rack, an outer sleeve fixedly arranged on the rack, a first pore plate, an inner sleeve, two second pore plates, a water receiving disc, a hydraulic driving mechanism and a measuring mechanism, wherein the first pore plate is fixedly arranged on the rack, the first pore plate is fixedly abutted against one end of the outer sleeve, the inner sleeve is arranged in the outer sleeve and can be inserted in a pulling mode along the axial line direction of the inner sleeve, the second pore plate is movably arranged along the axial line direction of the inner sleeve and is abutted against the inner sleeve in a ring mode, the water receiving disc is arranged on the rack and is positioned below the outer sleeve, the hydraulic driving mechanism is arranged on the rack and is used for driving one second pore plate to move in the inner sleeve, and the measuring mechanism is arranged on the outer sleeve and is used for measuring the displacement of the second pore plate;

the second pore plate comprises a plate body and a sealing ring sleeved on the plate body and annularly propped against the inner sleeve;

the second pore plate further comprises a plurality of circles of through holes which are arranged along the circumferential direction and are formed in the plate body, and annular grooves and radial grooves which are concavely formed in the surface of the plate body and are used for communicating the through holes;

the measuring mechanism is a vernier caliper.

2. The filter press testing device according to claim 1, wherein: the hydraulic driving mechanism comprises a hydraulic station, an oil cylinder fixedly arranged on the frame, a push rod which can extend along the length extension direction of the oil cylinder, is arranged in the oil cylinder, is partially used for entering from the other end of the outer sleeve and pushing the second pore plate, an oil inlet pipeline and an oil outlet pipeline which are connected between the oil cylinder and the hydraulic station, and pressure switches which are arranged on the oil inlet pipeline and the oil outlet pipeline in a one-to-one correspondence manner.

3. The filter press testing device of claim 2, wherein: the hydraulic driving mechanism further comprises a pressure reducing valve, a throttle valve and a pressure gauge which are arranged on the oil inlet pipeline.

4. The filter press testing device of claim 2, wherein: the hydraulic driving mechanism further comprises a control unit which is arranged on the frame and used for controlling the push rod to stretch and retract manually and/or automatically.

5. The filter press testing device of claim 2, wherein: the outer sleeve, the first pore plate, the inner sleeve, the second pore plate and the push rod are all coaxially arranged, and the axial lead of the outer sleeve, the first pore plate, the inner sleeve, the second pore plate and the push rod extends along the horizontal direction.