Pressure detection device for box type filter

Abstract

The utility model provides a pressure detection device of a box type filter. The pressure detection device for the box type filter comprises a mounting frame, a pressure sensor and a pressure sensor, wherein a moving mechanism is arranged on the mounting frame; the moving mechanism comprises a driving motor, the driving motor is fixedly mounted on the mounting frame, a lead screw is fixedly connected to the conveying end of the driving motor, a fixing assembly is arranged on the lead screw, two limiting rods are slidably connected to the fixing assembly, and the two ends of each limiting rod are fixedly connected with the mounting frame. The other end of the lead screw is rotationally connected with the mounting frame, a hydraulic cylinder is fixedly mounted on the mounting frame, a movable plate is fixedly mounted at the front end of the hydraulic cylinder, a plurality of filter plates are slidably connected to the mounting frame, and a fixed pipe is fixedly connected to the top end of each filter plate. The pressure detection device of the box type filter can automatically complete the cleaning work of the filter residue cake, and has the advantages of saving the labor cost and improving the filtering efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of filter equipment, and particularly relates to a pressure detection device for a box-type filter press. Background Art

[0002] Filter equipment refers to mechanical equipment or devices used for filtration, which are common general equipment in industrial production. Filter equipment is generally divided into two categories: vacuum and pressure. Commonly used vacuum types include rotary drums, discs, horizontal belt types, etc., and commonly used pressure types include pressure filtration, pressing, dynamic filtration, and rotary types. The working principle of a box-type filter press is that filter plates are arranged to form a filter chamber (both sides of the filter plate are recessed, and every two filter plates form a box-shaped filter chamber).

[0003] After retrieval, the existing patent (publication number: CN212025158U) discloses a box-type filter press that is easy to move, including a bottom plate. A filter press body is installed on the bottom plate. A support leg for installing the filter press is provided at one end of the bottom plate away from the filter press body. A plurality of lifting rings for hoisting the box-type filter press are installed on the bottom plate. A discharge mechanism for discharging materials is installed between the bottom plate and the filter press body. Working plates are respectively hinged and installed on both sides of the bottom plate. A plurality of columns are fixedly installed on one side of the bottom plate close to the filter press body. Fixing holes and installation holes are respectively opened in the columns along their vertical directions. The installation holes are located on the side of the fixing holes away from the bottom plate. The working plates and the columns are connected by connecting rods. The connecting rods are hinged to the working plates, and the connecting rods and the columns are fixedly connected by positioning bolts. The positioning bolts are installed in the fixing holes or the installation holes. The utility model has the advantages of small space occupation, convenient transportation, safe use, and easy maintenance.

[0004] However, there are still deficiencies in the above structure. When the box-type filter press that is easy to move is in use, the efficiency of separating the filtered filter plates one by one is insufficient, which affects the filtration efficiency.

[0005] Therefore, it is necessary to provide a new pressure detection device for a box-type filter press to solve the above technical problems. Summary of the Utility Model

[0006] The technical problem solved by the utility model is to provide a pressure detection device for a box-type filter press that can automatically complete the cleaning work of filter cakes, saving labor costs and improving filtration efficiency.

[0007] To solve the above technical problems, the pressure detection device for a box-type filter press provided by the utility model includes: a mounting frame, and a moving mechanism is arranged on the mounting frame;

[0008] The moving mechanism includes a driving motor fixedly installed on the mounting frame. A lead screw is fixedly connected to the conveying end of the driving motor. A fixing component is arranged on the lead screw. Two limiting rods are slidably connected to the fixing component. Both ends of the two limiting rods are fixedly connected to the mounting frame. The other end of the lead screw is rotatably connected to the mounting frame. A hydraulic cylinder is fixedly installed on the mounting frame. A moving plate is fixedly installed at the front end of the hydraulic cylinder. A plurality of filter plates are slidably connected to the mounting frame. A fixing pipe is fixedly connected to the top end of the filter plate. A filtrate discharge pipe is fixedly connected to one side of the filter plate. A slag discharge groove is formed on the filter plate. An operation panel is fixedly installed on one side of the mounting frame. A filtrate discharge groove is fixedly connected to the other side of the mounting frame.

[0009] As a further solution of the present invention, the fixing component includes a moving block threadedly installed on the lead screw. A micro cylinder is fixedly installed inside the moving block. A sealing pipe is fixedly connected to the moving block. A piston plate is fixedly connected to the front end of the micro cylinder. A connecting pipe is fixedly connected to the sealing pipe. The other end of the connecting pipe is fixedly connected to an expansion airbag. An infrared sensor is fixedly installed on the moving block.

[0010] As a further solution of the present invention, the piston plate is located inside the sealing pipe, and the size of the piston plate fits the inner cavity size of the sealing pipe.

[0011] As a further solution of the present invention, the expansion airbag is fixedly sleeved on the outer wall of the moving block. The size of the expansion airbag is slightly smaller than the inner cavity size of the fixing pipe, and the vertical center line of the expansion airbag coincides with the vertical center line of the moving block.

[0012] As a further solution of the present invention, a pressure sensor is arranged on the moving plate, and the size of the moving plate fits the size of the filter plate.

[0013] As a further solution of the present invention, the filtrate discharge groove is located directly below the filtrate discharge pipe, and a drain pipe is arranged on one side of the filtrate discharge groove.

[0014] Compared with the related technology, the box-type filter pressure detection device provided by the present invention has the following beneficial effects:

[0015] 1. By setting the fixing component of the present invention, the gas in the sealing pipe flows from the connecting pipe into the expansion airbag, inflating and expanding the expansion airbag to fix the filter plate. Cooperating with the moving mechanism to fix and move the filter plates in sequence, it can automatically complete the cleaning work of the filter cake, which is beneficial to saving labor costs and improving work efficiency;

[0016] 2. The pressure sensor provided by the utility model can detect the pressure applied by the moving plate on the filter plate, so as to adjust the pressure applied on the filter plate through the operation panel, which is beneficial to improving the filtration efficiency and protecting the filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] For the convenience of those skilled in the art to understand, the present utility model will be further described below with reference to the accompanying drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of the pressure detection device for the box-type filter provided by the present utility model;

[0019] Figure 2 It is a schematic diagram of the moving mechanism structure of the pressure detection device for the box-type filter provided by the present utility model;

[0020] Figure 3 It is a schematic diagram of the fixed component structure of the pressure detection device for the box-type filter provided by the present utility model.

[0021] In the figure: 1. mounting frame; 2. driving motor; 3. lead screw; 4. fixed component; 401. moving block; 402. micro cylinder; 403. sealing pipe; 404. piston plate; 405. connecting pipe; 406. expansion air bag; 407. infrared sensor; 5. limiting rod; 6. hydraulic cylinder; 7. moving plate; 8. filter plate; 9. fixed pipe; 10. filtrate discharge pipe; 11. slag discharge tank; 12. operation panel; 13. filtrate discharge tank. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Please refer to Figure 1 , Figure 2 , Figure 3 , wherein, Figure 1 It is a schematic diagram of the overall structure of the pressure detection device for the box-type filter of the present utility model; Figure 2 It is a schematic diagram of the moving mechanism structure of the pressure detection device for the box-type filter of the present utility model; Figure 3 It is a schematic diagram of the fixed component structure of the pressure detection device for the box-type filter of the present utility model. The pressure detection device for the box-type filter includes: a mounting frame 1, and a moving mechanism is arranged on the mounting frame 1;

[0023] The moving mechanism includes a driving motor 2 fixedly installed on the mounting frame 1. A lead screw 3 is fixedly connected to the conveying end of the driving motor 2. A fixing component 4 is arranged on the lead screw 3. Two limiting rods 5 are slidably connected to the fixing component 4. Both ends of the two limiting rods 5 are fixedly connected to the mounting frame 1. The other end of the lead screw 3 is rotatably connected to the mounting frame 1. A hydraulic cylinder 6 is fixedly installed on the mounting frame 1. A moving plate 7 is fixedly installed at the front end of the hydraulic cylinder 6. A plurality of filter plates 8 are slidably connected to the mounting frame 1. A fixing pipe 9 is fixedly connected to the top end of the filter plate 8. A filtrate discharge pipe 10 is fixedly connected to one side of the filter plate 8. A slag discharge groove 11 is formed in the filter plate 8. An operation panel 12 is fixedly installed on one side of the mounting frame 1. A filtrate discharge groove 13 is fixedly connected to the other side of the mounting frame 1.

[0024] As Figure 3 shown, the fixing component 4 includes a moving block 401 threadedly installed on the lead screw 3. A micro cylinder 402 is fixedly installed in the moving block 401. A sealing pipe 403 is fixedly connected to the moving block 401. A piston plate 404 is fixedly connected to the front end of the micro cylinder 402. A connecting pipe 405 is fixedly connected to the sealing pipe 403. The other end of the connecting pipe 405 is fixedly connected to an expansion air bag 406. An infrared sensor 407 is fixedly installed on the moving block 401;

[0025] Through the setting of the fixing component 4, the filter plate 8 can be fixed and driven to slide on the mounting frame 1, so that the filter cake can fall off.

[0026] As Figure 3 shown, the piston plate 404 is located in the sealing pipe 403, and the size of the piston plate 404 fits the inner cavity size of the sealing pipe 403;

[0027] Through the setting that the piston plate 404 is located in the sealing pipe 403 and the size of the piston plate 404 fits the inner cavity size of the sealing pipe 403, the sealing performance can be enhanced, which is beneficial for long-term use.

[0028] As Figure 3 shown, the expansion air bag 406 is fixedly sleeved on the outer wall of the moving block 401. The size of the expansion air bag 406 is slightly smaller than the inner cavity size of the fixing pipe 9, and the vertical center line of the expansion air bag 406 coincides with the vertical center line of the moving block 401.

[0029] Through the setting that the size of the expansion air bag 406 is slightly smaller than the inner cavity size of the fixing pipe 9, the fixing component 4 can smoothly enter the inner cavity of the fixing pipe 9 before the expansion air bag 406 expands.

[0030] As Figure 1As shown, a pressure sensor is provided on the moving plate 7, and the size of the moving plate 7 fits the size of the filter plate 8;

[0031] Through the setting of the pressure sensor, the pressure exerted by the moving plate 7 on the filter plate 8 can be detected, so that the pressure exerted on the filter plate 8 can be adjusted through the operation panel 12.

[0032] As Figure 1 shown, the filtrate discharge tank 13 is located directly below the filtrate discharge pipe 10, and a drain pipe is provided on one side of the filtrate discharge tank 13;

[0033] Through the setting that the filtrate discharge tank 13 is located directly below the filtrate discharge pipe 10, the filtrate filtered by the filter plate 8 can be smoothly discharged along the filtrate discharge tank 13.

[0034] The working principle of the pressure detection device of the box-type filter provided by the present utility model is as follows:

[0035] First step: When in use, first place the entire device in a suitable position, then start the hydraulic cylinder 6 to push out the moving plate 7. The moving plate 7 exerts pressure on multiple filter plates 8 to filter the sludge in the filter plates 8. The filtered filtrate flows from the filtrate discharge pipe 10 to the filtrate discharge tank 13, and then the filtrate is collected as a whole. At the same time, when the moving plate 7 compresses multiple filter plates 8, the pressure sensor detects the pressure exerted by the moving plate 7, and then adjusts the hydraulic cylinder 6 through the operation panel 12;

[0036] Second step: After the filtration is completed, start the driving motor 2 to drive the lead screw 3 to rotate, thereby driving the fixing assembly 4 to move on the lead screw 3. When the fixing assembly 4 moves to the first filter plate 8, after the infrared sensor 407 is blocked by the fixing tube 9, the driving motor 2 stops rotating. At the same time, start the micro cylinder 402 to drive the piston plate 404 to advance forward in the cavity of the sealing tube 403, so that the gas in the sealing tube 403 flows from the connecting tube 405 to the expansion air bag 406 to inflate the expansion air bag 406. Then the expansion air bag 406 can be tightly fixed to the inner wall of the fixing tube 9. Then start the driving motor 2 to drive the fixing assembly 4 to move back on the lead screw 3, thereby driving the filter plate 8 to move and making the filter cake on the filter plate 8 fall off;

[0037] Third step: After the fixing assembly 4 moves back a certain distance, start the micro cylinder 402 to pull back the piston plate 404, so that the gas in the expansion air bag 406 is refilled into the sealing tube 403, and the fixing effect of the expansion air bag 406 on the filter plate 8 disappears. Then start the driving motor 2 to drive the fixing assembly 4 to move forward again. When the fixing assembly 4 moves to the second filter plate 8, repeat the above operations to automatically complete the cleaning work of the filter cake.

[0038] It should be noted that the device structure and drawings of the present utility model mainly describe the principle of the present utility model. Based on the technical principle of this design, the settings of the power mechanism, power supply system, control system, etc. of the device are not fully described. However, on the premise that those skilled in the art understand the principle of the above-mentioned utility model, the specific details of its power mechanism, power supply system, and control system can be clearly obtained. The control method of the application document is to automatically control through a controller, and the control circuit of the controller can be realized by simple programming by those skilled in the art;

[0039] The standard parts used therein can all be purchased from the market, and can also be customized according to the records in the specification and drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, welding, etc. that are mature in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, and for the components known to those skilled in the art, their structures and principles can all be known by those skilled in the art through technical manuals or obtained through conventional experimental methods.

[0040] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model, or directly or indirectly applied. In other related technical fields, the scope of the present utility model is defined by the appended claims and their equivalents, and is similarly included within the scope of the patent protection of the present utility model.

Claims

1. A box filter pressure detection device, characterized in that: include: A mounting frame, wherein a moving mechanism is provided on the mounting frame; The moving mechanism includes a driving motor, which is fixedly mounted on a mounting frame, a screw is fixedly connected to the conveying end of the driving motor, a fixing assembly is provided on the screw, two limit rods are slidably connected to the fixing assembly, both ends of the two limit rods are fixedly connected to the mounting frame, the other end of the lead screw is rotatably connected to the mounting frame, a hydraulic cylinder is fixedly mounted on the mounting frame, a moving plate is fixedly mounted on the front end of the hydraulic cylinder, a plurality of filter plates are slidably connected to the mounting frame, a fixed pipe is fixedly connected to the top end of the filter plate, a filtrate discharge pipe is fixedly connected to one side of the filter plate, a slag discharge groove is provided on the filter plate, an operation panel is fixedly mounted on one side of the mounting frame, and a filtrate discharge groove is fixedly connected to the other side of the mounting frame.

2. The pressure detection device for a box filter according to claim 1, characterized in that: The fixed component includes a moving block, which is threadedly mounted on a lead screw, a micro cylinder fixedly mounted inside the moving block, a sealing tube fixedly connected to the moving block, a piston plate fixedly connected to the front end of the micro cylinder, a connecting tube fixedly connected to the sealing tube, an expansion airbag fixedly connected to the other end of the connecting tube, and an infrared sensor fixedly mounted on the moving block.

3. The pressure detection device for a box filter according to claim 2, characterized in that: The piston plate is located in the sealing tube, and the size of the piston plate matches the size of the inner cavity of the sealing tube.

4. The pressure detection device for a box filter according to claim 2, characterized in that: The expansion airbag fixing sleeve is arranged on the outer wall of the moving block, the size of the expansion airbag is slightly smaller than the inner cavity size of the fixing tube, and the vertical center line of the expansion airbag coincides with the vertical center line of the moving block.

5. The pressure detection device for a box filter according to claim 1, characterized in that: The movable plate is provided with a pressure sensor, and the size of the movable plate matches the size of the filter plate.

6. The pressure detection device for a box filter according to claim 1, characterized in that: The filtrate discharge trough is located directly below the filtrate discharge pipe, and a drainage pipe is arranged on one side of the filtrate discharge trough.

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