CN112485190A

CN112485190A - Filter-pressing testing arrangement

Info

Publication number: CN112485190A
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: 2021-03-12
Anticipated expiration: 2040-11-24
Also published as: CN112485190B

Abstract

The invention discloses a filter pressing test device which comprises a rack, an outer sleeve fixedly arranged on the rack, a first pore plate fixedly connected with one end of the outer sleeve in a ring-abutting mode, an inner sleeve arranged in the outer sleeve and capable of being plugged in and pulled out along the axial lead direction of the inner sleeve, two second pore plates capable of moving along the axial lead direction of the inner sleeve and connected with the inner sleeve in a ring-abutting mode, a water receiving disc arranged on the rack and positioned below the outer sleeve, a hydraulic driving mechanism arranged on the rack and used for driving one of the second pore plates to move in the inner sleeve, and a measuring mechanism arranged on the outer sleeve and used for measuring the displacement of the second pore plate. The filter pressing testing device provided by the invention has the advantages that water is thoroughly drained during filter pressing, materials can be conveniently taken out after filter pressing is finished, and the maximum testing pressure is higher.

Description

Filter-pressing testing arrangement

Technical Field

The invention relates to a filter pressing testing device.

Background

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

Disclosure of Invention

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

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

the utility model provides a filter-pressing testing arrangement, includes the frame, set firmly in outer sleeve, fixed ring in the frame support in the first orifice plate of outer sleeve one end, can follow the locating of pulling out of self axial lead direction insert inner skleeve, two in the outer sleeve can be followed the axial lead direction activity of inner skleeve 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 just be used for driving in the frame wherein one the second orifice plate is in the hydraulic drive mechanism of motion in the inner skleeve, locate just be used for the volume on the outer sleeve and get the measuring mechanism of second orifice plate displacement.

Preferably, the second orifice plate includes a plate body, and a sealing ring sleeved on the plate body and annularly abutted to the inner sleeve.

More preferably, the second orifice plate further comprises a plurality of circles of through holes arranged along the circumferential direction and arranged on the plate body, and an annular groove and a radial groove which are concavely arranged on 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 rack, a push rod which is arranged in the oil cylinder and can stretch out and draw back along the length extension direction of the hydraulic driving mechanism, 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 arranged on the frame and used for controlling the push rod to manually and/or automatically extend and retract.

More preferably, the outer sleeve, the first orifice plate, the inner sleeve, the second orifice plate and the push rod are coaxially arranged, and the axial 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, the two second pore plates which are used for mutually matching and extruding materials are arranged in the inner sleeve, the first pore plate is arranged at one end of the outer sleeve, and water produced by the materials in the inner sleeve can be thoroughly discharged during filter pressing; after filter pressing is completed, the inner sleeve is taken out of the outer sleeve, the second pore plate is taken out, and materials in the inner sleeve can be conveniently taken out; by adopting the hydraulic driving mechanism, the maximum testing pressure of the device is higher, and the pressure requirement of a field plate frame machine can be simulated.

Drawings

FIG. 1 is a schematic diagram of the structure of the apparatus 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 slot; 5. a water pan; 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. a manual/automatic switching button; 15. a forward button; 16. a back button; 17. a time controller.

Detailed Description

The technical scheme of the invention is further explained by combining the attached drawings.

Referring to fig. 1-2, the filter pressing test device includes a frame 1, an outer sleeve 2 fixed on the frame 1, a first hole plate fixedly connected to one end of the outer sleeve 2, an inner sleeve 3 capable of being inserted and pulled along the axial direction of the inner sleeve 3 and disposed in the outer sleeve 2, two second hole plates 4 capable of moving along the axial direction of the inner sleeve 3 and connected to the inner sleeve 3, and a water pan 5 disposed on the frame 1 and located below the outer sleeve 2.

Referring to fig. 1, in the present embodiment, the outer sleeve 2 is fixedly connected to the frame 1 by its sides and bottom. The first orifice plate is connected to the left end of the outer sleeve 2, and the first orifice plate and the outer sleeve are integrally formed. The outer sleeve 2, the first orifice plate, the inner sleeve 3 and the second orifice plate 4 are coaxially arranged, and the axial lines of the orifices 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 annularly abutting against the inner sleeve 3, a plurality of circles of through holes 43 arranged along the circumferential direction and opened on the plate body 41, an annular groove 44 concavely arranged on the surface of the plate body 41 and used for communicating the through holes 43, and a radial groove 45. The plate body 41 is circular, and the sealing ring 42 is annular. In this embodiment, three through holes 43 are formed on the plate body 41. By arranging the annular groove 44 and the radial groove 45, the material produced water in the inner sleeve 3 can be thoroughly drained during filter pressing. The water discharged from the left second orifice plate 4 flows downwards into the water receiving tray 5 from the left first orifice plate, and the water discharged from the right second orifice plate 4 directly flows downwards into the water receiving tray 5 from the right end of the outer sleeve 2.

During filter pressing, the second pore plate 4 on the left side is tightly abutted to the first pore plate at the left end, and the second pore plate 4 on the right side is pressed to extrude the material between the two second pore plates 4.

The filter-pressing testing device further comprises a hydraulic driving mechanism which is arranged on the rack 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 installed on the upper surface of the outer sleeve 2, and the graduated scale body is parallel to the outer sleeve 2. The hydraulic pressure is used as power, the pressure can reach about 30Bar at most, and the pressure requirement of a 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 stretch and contract 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 second orifice plate 4 on the right side to the left, so that the materials are compressed. In this embodiment, the push rod 7 is coaxially aligned 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 is used for controlling the push rod 7 to manually and/or automatically stretch. The pressure gauge 11 is used for observing the oil pressure, and the oil pressure is adjusted through the pressure reducing valve 9. The throttle valve 10 is then used to regulate the flow rate of the hydraulic oil in the line.

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

During testing, under certain pressure conditions, the material is prevented from being extruded from the through holes 43 of the second orifice plate 4 while as much moisture as possible is extruded. 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 inner sleeve 3 is taken out after the push rod 7 is reset, the second pore plate 4 at the end part of the left side is disassembled, and materials in the inner sleeve 3 can be conveniently taken out.

A plurality of hydro-cylinders 6 of hydraulic pressure station simultaneous drive carry out the filter-pressing to the material in a plurality of inner skleeve 3 to improve efficiency of software testing by a wide margin.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a filter-pressing testing arrangement which characterized in that: the device comprises a rack, an outer sleeve fixedly arranged on the rack, a fixed ring abutting against a first pore plate at one end of the outer sleeve, an inner sleeve arranged in the outer sleeve and capable of being pulled out and inserted along the direction of the axis of the inner sleeve, two pore plates capable of moving along the direction of the axis of the inner sleeve and abutting against a second pore plate in the inner sleeve, a water receiving tray arranged on the rack and positioned below the outer sleeve, a hydraulic driving mechanism arranged on the rack and used for driving one of the pore plates to move in the inner sleeve, and a measuring mechanism arranged on the outer sleeve and used for measuring the displacement of the second pore plate.

2. A filter press test apparatus as defined in claim 1 wherein: the second orifice plate comprises a plate body and a sealing ring which is sleeved on the plate body and is annularly propped against the inner sleeve.

3. A filter press test apparatus as set forth in claim 2 wherein: the second orifice plate still includes that many circles arrange along the circumferencial direction set up in through-hole on the plate body, concave locate plate body surface and be used for the intercommunication the ring channel and the radial groove of through-hole.

4. A filter press test apparatus as defined in claim 1 wherein: the hydraulic driving mechanism comprises a hydraulic station, an oil cylinder fixedly arranged on the rack, a push rod which can stretch out and draw back along the length extending direction of the hydraulic driving mechanism and is arranged in 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 mode.

5. A filter press test apparatus as set forth in claim 4 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.

6. A filter press test apparatus as set forth in claim 4 wherein: the hydraulic driving mechanism further comprises a control unit which is arranged on the rack and used for controlling the push rod to manually and/or automatically stretch.

7. A filter press test apparatus as set forth in claim 4 wherein: the outer sleeve, the first orifice plate, the inner sleeve, the second orifice plate and the push rod are coaxially arranged, and the axial line of the outer sleeve, the first orifice plate, the inner sleeve, the second orifice plate and the push rod extends along the horizontal direction.

8. A filter press test apparatus as defined in claim 1 wherein: the measuring mechanism is a vernier caliper.