Filter press for propionic acid

Abstract

The utility model relates to the technical field of filter presses, and discloses a propionic acid filter press which comprises a machine body, a discharging table is fixedly connected to the side wall of the machine body, a plurality of filter plates are arranged on the side wall of the machine body, a connecting assembly is arranged at the tops of the filter plates, a discharging assembly is arranged on the side wall of the discharging table, and the connecting assembly comprises a filter cloth plate. The filter cloth plate is slidably connected into the filter plate, a connecting table is fixedly connected to the top of the filter plate, a fixing table is fixedly connected to the top of the filter cloth plate, a side plate is fixedly connected into the connecting table, and a connecting shaft is fixedly connected to the side wall of the side plate. According to the filter press disclosed by the utility model, the clamping plate horizontally moves on the outer wall of the connecting shaft after being stressed, finally, the filter cloth plate can be pulled away from the interior of the filter plate, and the clamping plate can be quickly reset and continuously lock the fixed table through the elastic force of the spring I, so that the shutdown time of equipment is shortened, and the filter press can be put into production more frequently; the equipment utilization rate is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter press technical field especially propionic acid with filter press. BACKGROUND

[0002] Propionic acid is an organic compound widely used in chemical industry, food industry and other industries. In the chemical industry, it is often used as raw material to participate in various chemical reactions. In the food industry, propionic acid and its salts can be used as preservatives to inhibit microbial growth and extend the shelf life of food. Propionic acid filter press is a device specially used for treating solid-liquid mixture containing propionic acid. Through specific filtration principle, solid impurities in propionic acid are separated from propionic acid solution to obtain pure propionic acid solution, meeting the requirements of different production links for propionic acid purity, improving production efficiency and product quality, and being widely used in propionic acid production, fine chemical industry and other scenes requiring purification and purification of propionic acid.

[0003] Filter press mainly consists of three parts: frame, pressing mechanism and filtering mechanism. The frame is the supporting foundation of the whole filter press, which is usually composed of thrust plate, pressing plate and girder. The thrust plate is used to fix one end, the pressing plate can move on the girder to realize the pressing action, and the girder bears the role of connecting and supporting other components. The pressing mechanism is responsible for pressing the filter plate to ensure that there is no leakage during the filtration process. Commonly used methods include manual pressing, mechanical pressing and hydraulic pressing. Manual pressing is operated manually by screw jacks. Mechanical pressing is composed of motor, reducer and screw rod, which relies on mechanical transmission to realize pressing. Hydraulic pressing uses hydraulic station and oil cylinder to generate pressure to press. The filtering mechanism is the core part of solid-liquid separation, which includes filter plate, filter frame and filter cloth. The filter plate and filter frame are arranged alternately, and the filter cloth is wrapped on both sides of the filter plate. The material to be filtered enters the filter chamber from the feed port, and under the action of pressure, the liquid flows out through the filter cloth, and the solid remains in the filter chamber to form filter cake.

[0004] The fixing method of traditional filter cloth is relatively single, mostly using simple bolt clamping or binding method. In the bolt clamping method, the edge of the filter cloth is fixed on the filter plate by multiple clamping plates and bolts. Since the number of filter plates is large and the bolts are densely distributed, when disassembling the filter cloth, a large number of bolts need to be unscrewed and tightened one by one, which is tedious and time-consuming. Although the binding method seems simple, in order to ensure the sealing, the binding is usually tight, which requires a lot of effort to untie the binding when disassembling, and it is difficult to ensure uniform and firm binding when installing. This inconvenient disassembly leads to low efficiency of replacing filter cloth, increases the downtime of equipment, and affects the production progress. Moreover, in the repeated disassembly process, the filter cloth and filter plate are easily damaged due to improper operation, increasing the maintenance cost and reducing the overall service life and production efficiency of the equipment. SUMMARY

[0005] In order to make up for the above shortcomings, the utility model provides a filter press for propionic acid, aims at improving the problem of low efficiency of filter cloth replacement caused by inconvenient disassembly of filter cloth of traditional filter press, increasing downtime of equipment and affecting production progress.

[0006] In order to achieve the above object, the utility model adopts the following technical scheme: filter press for propionic acid, including machine body, the machine body lateral wall is fixedly connected with the discharge table, the machine body lateral wall is provided with a plurality of filter plates, the filter plate top is provided with connecting assembly, the discharge table lateral wall is provided with discharge assembly,

[0007] The connecting assembly includes filter cloth plate, the filter cloth plate is slidably connected in the filter plate, the filter plate top is fixedly connected with connecting table, the filter cloth plate top is fixedly connected with fixed table, the connecting table inside is fixedly connected with side plate, the side plate lateral wall is fixedly connected with connecting shaft, the connecting shaft outer wall is slidably connected with clamping plate, the clamping plate is slidably connected in the fixed table, the connecting shaft outer wall is equipped with spring one, one end of spring one is fixedly connected in the clamping plate lateral wall, the other end of spring one is fixedly connected in the side plate lateral wall.

[0008] Further, the discharge assembly includes a connecting seat, and the connecting seat is fixedly connected to the side wall of the discharge table.

[0009] Further, the connecting seat is fixedly connected with a motor at the bottom, and the motor is fixedly connected with a connecting column at the output end.

[0010] Further, the connecting column is fixedly connected with a concave wheel at the outer wall, and a plurality of sliding grooves are formed in the inner portion of the connecting seat.

[0011] Further, a sliding table is arranged on the upper surface of the connecting seat, and a pulley is rotatably connected to the both sides of the sliding table.

[0012] Further, the pulley is slidably connected in the sliding groove, and an inner shaft is fixedly connected in the inner portion of the sliding table.

[0013] Further, a fixed plate is fixedly connected to the upper surface of the connecting seat, a push shaft is fixedly connected to the side wall of the sliding table, and the push shaft is slidably connected in the inner portion of the fixed plate.

[0014] Further, a push frame is fixedly connected to one end of the push shaft, a spring two is sleeved on the outer wall of the push shaft, one end of the spring two is fixedly connected to the side wall of the fixed plate, and the other end of the spring two is fixedly connected to the side wall of the sliding table.

[0015] The utility model has the advantages of:

[0016] In this invention, the clamping plate first undergoes horizontal displacement on the outer wall of the connecting shaft after being subjected to force, and finally the filter cloth plate can be pulled out from the inside of the filter plate. The elastic force of the spring allows the clamping plate to quickly reset and maintain continuous locking on the fixed platform, reducing the downtime of the equipment, allowing the filter press to be put into production more frequently, and improving the utilization rate of the equipment.

[0017] In this invention, the motor drives the concave wheel on the outer wall of the connecting column to rotate, and finally pushes the pusher outward to eject the filter cake. The pusher is then reset by the return of the spring, which greatly shortens the single working cycle and allows the filter press to quickly enter the next round of filtration. This increases the processing capacity per unit time and meets the demand for high-efficiency filtration in large-scale production, thus significantly improving overall production efficiency. Attached Figure Description

[0018] Figure 1 This is a perspective view of the propionic acid filter press proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the filter cloth plate part of the propionic acid filter press proposed in this utility model;

[0020] Figure 3 This is a schematic diagram of the slide section of the propionic acid filter press proposed in this utility model.

[0021] Legend:

[0022] 1. Machine body; 2. Discharge platform; 3. Filter plate; 4. Filter cloth plate; 5. Fixed platform; 6. Connecting platform; 7. Side plate; 8. Connecting shaft; 9. Clamping plate; 10. Spring 1; 11. Connecting seat; 12. Motor; 13. Connecting column; 14. Concave wheel; 15. Slide table; 16. Slide groove; 17. Pulley; 18. Inner shaft; 19. Fixed plate; 20. Push shaft; 21. Push frame; 22. Spring 2. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Reference Figures 1-2 An embodiment of the present invention provides a filter press for propionic acid, comprising a body 1, a discharge platform 2 fixedly connected to the side wall of the body 1, a plurality of filter plates 3 provided on the side wall of the body 1, a connecting component provided on the top of the filter plates 3, and a discharge component provided on the side wall of the discharge platform 2.

[0025] The connecting assembly includes a filter cloth plate 4, which is slidably connected inside the filter plate 3. A connecting platform 6 is fixedly connected to the top of the filter plate 3, and a fixing platform 5 is fixedly connected to the top of the filter cloth plate 4. A side plate 7 is fixedly connected inside the connecting platform 6, and a connecting shaft 8 is fixedly connected to the side wall of the side plate 7. A clamping plate 9 is slidably connected to the outer wall of the connecting shaft 8, and the clamping plate 9 is slidably connected inside the fixing platform 5. A spring 10 is sleeved on the outer wall of the connecting shaft 8, with one end of the spring 10 fixedly connected to the side wall of the clamping plate 9 and the other end of the spring 10 fixedly connected to the side wall of the side plate 7.

[0026] Specifically, when the filter cloth plate 4 needs to be removed to replace its surface filter press, firstly, the locking plate 9 is moved. The locking plate 9 is subjected to force and undergoes horizontal displacement on the outer wall of the connecting shaft 8. The fixed platform 5 has a slot inside, and the size and shape of the locking plate 9 are adapted to the slot. During the horizontal displacement of the locking plate 9, the locking plate 9 gradually slides out of the slot inside the fixed platform 5. When the locking plate 9 was originally stuck in the slot, it played the role of locking the fixed platform 5. When it slides out of the slot, the fixed platform 5 is unlocked. At this time, the locking relationship between the filter cloth plate 4 and the filter plate 3 is released. The filter cloth plate 4 can be pulled out from inside the filter plate 3. As the clamping plate 9 slides out of the slot, the spring 10 connecting the clamping plate 9 will be stretched or compressed. When the clamping plate 9 is unlocked and the extraction operation of the filter cloth plate 4 is completed, the spring 10 will restore its deformation by its own elastic force, which will drive the clamping plate 9 to quickly reset and re-clamp into the slot inside the fixed table 5, maintaining continuous locking of the fixed table 5. When replacing the filter cloth plate 4, the operation is simple and time-saving, reducing the downtime of the equipment and allowing the filter press to be put into production more frequently, thus improving the equipment utilization rate.

[0027] Reference Figure 3 The discharge assembly includes a connecting seat 11, which is fixedly connected to the side wall of the discharge platform 2. A motor 12 is fixedly connected to the bottom of the connecting seat 11, and a connecting column 13 is fixedly connected to the output end of the motor 12. A concave wheel 14 is fixedly connected to the outer wall of the connecting column 13. Multiple sliding grooves 16 are opened inside the connecting seat 11. A slide table 15 is provided on the upper surface of the connecting seat 11. Pulleys 17 are rotatably connected to both sides of the slide table 15. The pulleys 17 are slidably connected inside the sliding grooves 16. An inner shaft 18 is fixedly connected inside the slide table 15. A fixing plate 19 is fixedly connected to the upper surface of the connecting seat 11. A push shaft 20 is fixedly connected to the side wall of the slide table 15. The push shaft 20 is slidably connected inside the fixing plate 19. A push frame 21 is fixedly connected to one end of the push shaft 20. A spring 22 is sleeved on the outer wall of the push shaft 20. One end of the spring 22 is fixedly connected to the side wall of the fixing plate 19, and the other end of the spring 22 is fixedly connected to the side wall of the slide table 15.

[0028] Specifically, when the filter cake falls from the discharge platform 2 of the machine body 1, the motor 12 operates to generate power, driving the connected column 13 to rotate. The concave wheel 14 on the outer wall of the connecting column 13 rotates synchronously with the connecting column 13. The special contour of the concave wheel 14 pushes the inner shaft 18 when rotating. After the inner shaft 18 is subjected to force, it drives the slide table 15 to move. The pulleys 17 installed on both sides of the slide table 15 slide smoothly in the slide groove 16 to ensure that the slide table 15 will not deviate when moving and maintain stability. The displacement of the slide table 15 drives the push shaft 2 on the side wall. 0. The push shaft 20 slides within the fixed plate 19, thereby pushing the push frame 21. The push frame 21 moves forward, pushing the filter cake out of the machine body 1. After the push frame 21 completes the action of pushing out the filter cake, the spring 22, which is in a compressed state, begins to rebound due to its own elasticity, causing the push frame 21 to quickly return to its original position and automatically push out the filter cake. This greatly shortens the single working cycle, allowing the filter press to enter the next round of filtration operation more quickly, effectively increasing the throughput per unit time and fully meeting the urgent needs of large-scale production for high-efficiency filtration.

[0029] Working principle: First, when the filter cloth plate 4 needs to be pulled out and its surface pressed for replacement, the clamping plate 9 is moved. After being subjected to force, the clamping plate 9 undergoes horizontal displacement on the outer wall of the connecting shaft 8. At this time, the clamping plate 9 slides out of the groove inside the fixed platform 5 and unlocks the fixed platform 5, allowing the filter cloth plate 4 to be pulled out from inside the filter plate 3. The elastic force of the spring 10 allows the clamping plate 9 to quickly reset and maintain continuous locking on the fixed platform 5, reducing equipment downtime and allowing the filter press to be put into production more frequently, improving equipment utilization. When the filter cake inside the machine body 1 falls from inside the discharge platform 2, the motor 12 is started to output belt to the connecting column 13. When the concave wheel 14 on the outer wall of the moving connecting column 13 rotates, the inner shaft 18 is pushed by the force to move the slide table 15. The pulleys 17 on both sides of the slide table 15 slide inside the slide groove 16 to ensure sliding stability. Then the displacement of the slide table 15 further drives the push shaft 20 on the side wall to slide inside the fixed plate 19, so that the push frame 21 pushes outward to push the filter cake out. The push frame 21 is reset by the spring 22, which greatly shortens the single working cycle, allowing the filter press to quickly enter the next round of filtration, increasing the processing capacity of the equipment per unit time, meeting the demand for high-efficiency filtration in large-scale production, and significantly improving the overall production efficiency.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A filter press for propionic acid, comprising a body (1), characterized in that: The machine body (1) has a discharge platform (2) fixedly connected to its side wall. The machine body (1) has multiple filter plates (3) on its side wall. The filter plates (3) have a connecting component on their top. The discharge platform (2) has a discharge component on its side wall. The connecting assembly includes a filter cloth plate (4), which is slidably connected inside the filter plate (3). A connecting platform (6) is fixedly connected to the top of the filter plate (3), and a fixing platform (5) is fixedly connected to the top of the filter cloth plate (4). A side plate (7) is fixedly connected inside the connecting platform (6), and a connecting shaft (8) is fixedly connected to the side wall of the side plate (7). A clamping plate (9) is slidably connected to the outer wall of the connecting shaft (8), and the clamping plate (9) is slidably connected inside the fixing platform (5). A spring (10) is sleeved on the outer wall of the connecting shaft (8). One end of the spring (10) is fixedly connected to the side wall of the clamping plate (9), and the other end of the spring (10) is fixedly connected to the side wall of the side plate (7).

2. The filter press for propionic acid according to claim 1, characterized in that: The discharge assembly includes a connecting seat (11), which is fixedly connected to the side wall of the discharge platform (2).

3. The filter press for propionic acid according to claim 2, characterized in that: The bottom of the connecting seat (11) is fixedly connected to a motor (12), and the output end of the motor (12) is fixedly connected to a connecting column (13).

4. The filter press for propionic acid according to claim 3, characterized in that: The outer wall of the connecting column (13) is fixedly connected with a concave wheel (14), and the connecting seat (11) has multiple sliding grooves (16) inside.

5. The filter press for propionic acid according to claim 4, characterized in that: A slide (15) is provided on the upper surface of the connecting seat (11), and pulleys (17) are rotatably connected on both sides of the slide (15).

6. The filter press for propionic acid according to claim 5, characterized in that: The pulley (17) is slidably connected inside the groove (16), and an inner shaft (18) is fixedly connected inside the slide table (15).

7. The filter press for propionic acid according to claim 6, characterized in that: A fixing plate (19) is fixedly connected to the upper surface of the connecting seat (11), and a push shaft (20) is fixedly connected to the side wall of the slide (15). The push shaft (20) is slidably connected inside the fixing plate (19).

8. The filter press for propionic acid according to claim 7, characterized in that: One end of the push shaft (20) is fixedly connected to the push frame (21), and the outer wall of the push shaft (20) is fitted with a spring (22). One end of the spring (22) is fixedly connected to the side wall of the fixed plate (19), and the other end of the spring (22) is fixedly connected to the side wall of the slide (15).

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