A wastewater recycling device for producing calcium dobesilate

Abstract

The application relates to a wastewater circulating treatment device for producing calcium dobesilate, and relates to the technical field of sewage treatment. The device comprises a rack and a synchronous mechanism. A plurality of filter plates are arranged on the rack in a sliding mode. A hydraulic cylinder for extruding the filter plates is arranged on one side of the rack. The synchronous mechanism comprises a plurality of air bags. The air bags are arranged along the sliding direction of the filter plates. The air bags are sequentially communicated with each other. One filter plate is arranged at the communication position of each two adjacent air bags. An air pump for inflating and exhausting the air bags is arranged on the rack. The device can simplify the sludge treatment steps, greatly improve the sludge treatment efficiency and the working efficiency of the sewage treatment system.

Description

Technical Field

[0001] This application relates to the technical field of wastewater treatment, and in particular to a wastewater recycling treatment device for the production of calcium hydroxybenzenesulfonate. Background Technology

[0002] Calcium dobesilate is an important drug and functional compound with various pharmacological effects, including improving microcirculation, antioxidation, and anti-inflammation. One step in the production of calcium dobesilate involves a neutralization reaction between benzenesulfonic acid and calcium hydroxide. This process generates calcium dobesilate and a large amount of wastewater containing unreacted benzenesulfonic acid, calcium hydroxide, and reaction byproducts. Therefore, this wastewater requires harmless treatment before discharge.

[0003] The main methods for treating wastewater are: first, filtering out large particles from the wastewater through physical means; then, settling and filtering out fine particles through chemical precipitation; next, decomposing the organic matter in the wastewater through biological decomposition; then, separating the wastewater and sludge through sedimentation; and finally, dewatering the sludge.

[0004] Current technology treats sludge by using a filter press to compress it. A filter press typically consists of multiple filter plates, each with a filter membrane. When the filter plates are pressed together by a hydraulic system, a filtration chamber is formed between them. Pressure is then applied to compress the filter membrane, reducing the volume of the filtration chamber. The fixed particles within the chamber are compressed into a filter cake, and the water inside the particles flows away through the grooves in the filter plates. The hydraulic system then returns to its original position, and the filter plates are opened sequentially. The filter cake then detaches from the filter membrane. This process requires manual labor or specialized equipment to separate the filter plates one by one, which is relatively cumbersome and significantly reduces the efficiency of sludge treatment, thereby lowering the overall efficiency of the wastewater treatment system. Summary of the Invention

[0005] The purpose of this application is to provide a wastewater recycling treatment device for the production of calcium hydroxybenzenesulfonate, which simplifies the sludge treatment process and thus greatly improves the sludge treatment efficiency and the working efficiency of the wastewater treatment system.

[0006] The wastewater recycling treatment device for the production of calcium dobesilate provided in this application adopts the following technical solution:

[0007] A frame on which multiple filter plates are slidably arranged, and a hydraulic cylinder for squeezing the multiple filter plates is provided on one side of the frame;

[0008] The synchronization mechanism includes multiple airbags, which are arranged along the sliding direction of the filter plate and are connected to each other in sequence. A filter plate is connected at the connection point of each pair of adjacent airbags. An air pump for inflating and deflating the airbags is also provided on the frame.

[0009] Optionally, the synchronization mechanism further includes two slide rails mounted on the frame and arranged opposite each other on both sides of the sliding direction of multiple filter plates. The slide rails are provided with grooves, and each filter plate has a sliding roller on both sides. All the sliding rollers are slidably arranged in the grooves. Each sliding roller has a connecting rod connected to the end away from the filter plate. The connecting rod is arranged perpendicular to the axis of the sliding roller. The frame is also provided with a toggle assembly, which can simultaneously drive all the connecting rods to reciprocate around the connection between the filter plate and the air bag.

[0010] Optionally, the actuating assembly includes gears, a chain, rotating rods, a connecting frame, and a rotating motor. Two gears are provided, both rotatably mounted on the frame. The chain meshes with both gears simultaneously. Two rotating rods are also provided, each corresponding to one of the two gears. One end of each rotating rod is fixedly connected to one end of a gear, and the ends of both rotating rods away from the gears are rotatably connected to the connecting frame. Multiple levers are provided on the end of the connecting frame near the connecting rods, each lever corresponding to one of the connecting rods, and the levers slide against the connecting rods. The rotating motor is mounted on the frame and coaxially fixedly connected to one of the gears.

[0011] Optionally, each of the connecting rods has an air guide groove inside, which is connected to an external air source. The outer wall of the connecting rod is provided with multiple air nozzles, which are all connected to the air guide grooves and face the end face of the filter plate.

[0012] Optionally, a semi-annular connecting block is provided at one end of the air nozzle near the connecting rod, and an air guide hole communicating with the air nozzle is provided at the other end of the connecting block away from the air nozzle. An annular groove coaxial with the connecting rod is provided in the inner wall of the connecting rod, and a swing groove for the air nozzle to pass through is provided on the outer wall of the connecting rod. The swing groove communicates with the annular groove, and the air guide hole communicates with the air guide groove. The connecting block is located in the annular groove and can slide back and forth in the annular groove, and the air nozzle swings back and forth in the swing groove.

[0013] Optionally, the gas supplied by the external gas source has a certain temperature.

[0014] Optionally, the bottom of the frame is also provided with a transport component for handling the filtered sludge.

[0015] In summary, this application includes at least one of the following beneficial technical effects:

[0016] 1. When multiple filter plates need to be separated, the air pump is started to inflate multiple air bladders. After expansion, the air bladders begin to extend laterally. During the extension process, the air bladders separate two adjacent filter plates. The multiple air bladders are interconnected, and there is one air bladder between each adjacent filter plate. Therefore, multiple filter plates can be opened and separated by the air bladders at the same time, thereby realizing the synchronous separation of multiple filter plates. This greatly shortens the time required to separate the filter plates and thus greatly improves the working efficiency of this equipment.

[0017] 2. When the connecting rod of the actuating component reciprocates around the connection between the filter plate and the air bag, the filter plate will also swing along with the connecting rod because the connecting rod is fixedly connected to the filter plate through the sliding roller. During the swing, the filter plate will be in an inclined state, which makes it easier for the sludge on the end face of the filter plate to fall off. At the same time, the filter plate will generate a certain centrifugal force during the swing, so the sludge attached to the end face of the filter plate will be more easily removed from the filter plate under the action of centrifugal force, thereby further avoiding the situation of sludge adhering to the filter plate.

[0018] 3. Since the filter plate in this embodiment is connected to the airbag, and the airbag itself has a certain elasticity, when the actuating component drives the filter plate to swing to the right, the airbag on the right side of the filter plate will be squeezed, and the airbag on the left side of the filter plate will be stretched. Therefore, at the moment when the actuating block in the actuating component separates from the connecting rod, the filter plate and the connecting rod will have a relatively large return acceleration (i.e., acceleration to the left) due to the elastic force of the airbag. As a result, the speed of the filter plate changes relatively quickly, while the sludge on the right end face of the filter plate remains stationary due to inertia, making it easier for the sludge on the right end face of the filter plate to be thrown off. Similarly, when the actuating component drives the filter plate to swing to the left, the sludge on the left end face of the filter plate is more easily thrown off when the filter plate moves back in the left direction, thereby further improving the overall removal effect of residual sludge on the filter plate.

[0019] 4. The air nozzle design allows for further cleaning of sludge residue on the filter plate end face. Furthermore, since the filter plates in this application reciprocate, when multiple filter plates simultaneously accelerate their return stroke along the left (or right) side, the sludge on the right (or left) end face of the filter plate will detach due to inertia. The filter plate to the right (left) of this plate will then collide with the detached sludge on its right (left) end face as it returns to the left (right), causing the sludge to re-adhere to the adjacent filter plate. At this time, since the connecting rod and the filter plate swing simultaneously, the air nozzle on the connecting rod will also slide to the far right of the swing groove due to inertia. This means the air nozzle is now directly facing the filter plate to the right of the original filter plate, allowing it to blow off the sludge re-adhered to the adjacent filter plate, thus further improving the overall sludge removal effect of the equipment. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0021] Figure 2 This is a rear view of the overall structure of an embodiment of this application;

[0022] Figure 3 This is a schematic diagram of the structure of the toggle component in the embodiments of this application;

[0023] Figure 4 This is a schematic diagram of the filter plate structure in an embodiment of this application;

[0024] Figure 5 yes Figure 4 Enlarged view of point A in the middle;

[0025] Figure 6 This is a schematic diagram of the connection between the air nozzle and the connecting block in an embodiment of this application;

[0026] Figure 7 This is a cross-sectional view of the connecting rod in an embodiment of this application;

[0027] Figure 8 yes Figure 7 Enlarged view of point B in the middle;

[0028] Figure 9 yes Figure 7 Enlarged view of point C in the middle;

[0029] In the diagram, 1. Frame; 11. Filter plate; 111. Clearance groove; 112. Connecting groove; 12. Hydraulic cylinder; 2. Synchronization mechanism; 21. Airbag; 22. Air pump; 23. Slide rail; 231. Slide groove; 24. Slide roller; 25. Connecting rod; 251. Air guide groove; 252. Ring groove; 253. Swing groove; 3. Actuating assembly; 31. Gear; 32. Chain; 33. Rotating rod; 34. Connecting frame; 35. Rotating motor; 36. Actuating block; 4. Air nozzle; 41. Connecting block; 42. Air guide hole; 5. Transport assembly; 6. Air pump; 7. Hose. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-9 This application will be described in further detail below.

[0031] A wastewater recycling treatment device for the production of calcium dobesilate, as described in the following reference. Figure 1 and Figure 2 It includes: frame 1 and synchronization mechanism 2.

[0032] In this embodiment, the entire frame 1 is arranged horizontally. Multiple filter plates 11 are slidably mounted on the frame 1. These filter plates 11 can slide along the length of the frame 1, and adjacent filter plates 11 can abut against each other. When adjacent filter plates 11 abut against each other, a relatively closed chamber is formed between them. A hydraulic cylinder 12 is mounted on one side of the frame 1. The extension and retraction direction of the output shaft of the hydraulic cylinder 12 is parallel to the sliding direction of the multiple filter plates 11. When sludge needs to be pressed and filtered, the output shaft of the hydraulic cylinder 12 extends, driving the rightmost filter plate on the frame 1... The filter plates 11 move towards the left until all the filter plates 11 move towards the left side of the frame 1 and adjacent filter plates 11 abut against each other. Then, the sludge is transported to the closed chamber between each adjacent filter plate 11 by the corresponding conveying equipment. The closed chamber is then pressurized to reduce its volume, thereby squeezing the sludge in the closed chamber and squeezing out the water. The squeezed water then flows out of the closed chamber along the through groove in the filter plate 11, thus completing the dewatering treatment of the sludge (this is existing technology and will not be described in detail here).

[0033] The synchronization mechanism 2 in this embodiment includes multiple airbags 21. Each airbag 21 is cylindrical and the same size. Each airbag 21 is coaxially arranged sequentially along the sliding direction of the filter plate 11. An airbag 21 is evenly distributed between each adjacent filter plate 11. Except for the rightmost and leftmost filter plates 11, which do not have a connecting groove 112, all other filter plates 11 have a connecting groove 112. The connecting groove 112 on each filter plate 11 is arranged through the filter plate 11 along the sliding direction of the filter plate 11, and the connecting groove 112 on each filter plate 11 is used to... The air bladders 21 on both sides of the filter plate 11 are connected. Each filter plate 11 is also provided with a clearance groove 111. When the hydraulic cylinder 12 squeezes all the filter plates 11 together, the air bladders 21 in the uninflated state will shrink into the clearance grooves 111 on the filter plate 11. Therefore, the air bladders 21 will not affect the mutual contact between adjacent filter plates 11, and thus will not affect the closed chamber formed between adjacent filter plates 11. The frame 1 is also provided with an air pump 22 for inflating and deflating the air bladders 21. In this embodiment, the air pump 22 is connected to one of the air bladders 21 through a hose 7.

[0034] After the sludge in the closed chamber between adjacent filter plates 11 is squeezed dry, all filter plates 11 are now folded up to the left side of the frame 1. The hydraulic cylinder 12 is then activated to retract, causing the rightmost filter plate 11 on the frame 1 to slide towards the right end of the frame 1. Simultaneously, the air pump 22 is activated to inflate the air bladder 21 connected to it. Since all air bladders 21 are connected through the connecting grooves 112 on the filter plates 11, all air bladders 21 will expand in the direction in which the filter plates 11 slide. During the expansion of the airbag 21, since there are airbags 21 between adjacent filter plates 11, the airbags 21 will open up the two adjacent filter plates 11. Then, since all the filter plates 11 are initially close to the left side of the frame 1, when the airbags 21 open the adjacent filter plates 11, all filter plates 11 except the leftmost filter plate 11 will move to the right side of the frame 1. And since all the airbags 21 have the same shape, size, and arrangement direction, all the airbags 21 are the same. With the shaft arrangement in place, when the air pump 22 fills all the airbags 21 with gas, the distance between adjacent filter plates 11 is the same, which is the length of the airbags 21 when they are inflated. In short, during the movement of the filter plates 11, since all the airbags 21 are in a connected state, the expansion of all the airbags 21 is basically simultaneous, that is, the separation of adjacent filter plates 11 is also basically simultaneous. The simultaneous separation of adjacent filter plates 11 will cause the closed chambers between adjacent filter plates 11 to open simultaneously, thereby facilitating the simultaneous discharge of dry sludge from the closed chambers between adjacent filter plates 11. Compared with the existing technology of moving the filter plates 11 one by one to the right by manpower or equipment to open the closed chambers between adjacent filter plates 11, the device in this embodiment can open all the closed chambers between adjacent filter plates 11 at the same time for sludge discharge, thereby greatly shortening the time required to separate the filter plates 11 and thus greatly improving the working efficiency of the device.

[0035] Among them, reference Figure 1 , Figure 2 and Figure 3In this embodiment, the synchronization mechanism 2 further includes two slide rails 23, which are mounted on the frame 1 and arranged opposite each other on both sides of the sliding direction of the multiple filter plates 11. Slide rails 231 are provided on the slide rails 23, arranged along the sliding direction of the filter plates 11. Each filter plate 11 has two slide rollers 24 fixedly arranged on both sides along the sliding direction. Each filter plate 11 has two slide rollers 24 corresponding to two slide rails 23. The slide rollers 24 on the filter plate 11 are inserted into the corresponding slide grooves 231 on the slide rails 23. The diameter of the slide roller 24 is smaller than the width of the slide groove 231 (i.e., the slide roller 24 can move vertically within the slide groove 231). The slide roller 24 slides against the bottom wall of the slide groove 231, allowing it to move within the slide groove 231. The slide roller 24 slides along the length of the slide groove 231. Each slide roller 24 has a connecting rod 25 fixedly connected to one end away from the filter plate 11. The connecting rod 25 is arranged perpendicular to the axis of the slide roller 24. In this embodiment, the connecting rod 25 is located on the plane where the corresponding filter plate 11 is located. The frame 1 is also provided with a toggle assembly 3 that can simultaneously drive all the connecting rods 25 (except the connecting rods 25 connected to the hydraulic cylinder 12) to swing back and forth around the connection between the filter plate 11 and the air bag 21. In this embodiment, there are two sets of toggle assemblies 3. In this embodiment, the multiple connecting rods 25 are also divided into two sets. One set is located on one side of the filter plate 11, and the other set is located on the other side of the filter plate 11. The two sets of connecting rods 25 correspond one-to-one with the two sets of toggle assemblies 3. The driving frequencies of the two sets of toggle assemblies 3 are the same.

[0036] After all the airbags 21 are fully inflated, the airbags 21 expand and separate all the filter plates 11. At this time, the closed chamber between adjacent filter plates 11 is opened, and the sludge in the closed chamber falls out of the closed chamber under the action of gravity. However, some sludge may still adhere to the film of the filter plate 11 (i.e. the inner wall of the closed chamber) and not fall off. At this time, the filter plate 11 is in a vertical state, and when the part of the sludge adhering to the film of the filter plate 11 remains stationary, the gravity on the sludge and its adhesion force (including viscous force and surface tension) with the groove surface are in a state of equilibrium, so that the sludge will not fall off. Then, the actuating component 3 is activated. The actuating component 3 drives the connecting rod 25 to rotate around the connection point between the filter plate 11 and the airbag 21. Since the connecting rod 25 is located on the plane of the filter plate 11, it also drives the filter plate 11 to rotate around the axis of the sliding roller 24 via the sliding roller 24. After the filter plate 11 rotates, it will be in an inclined state, and the direction of gravity of the sludge on the filter plate 11 will change, which can be decomposed into a component perpendicular to the filter plate 11 and a component parallel to the filter plate 11. At this time, the perpendicular component decreases, resulting in a decrease in the contact tightness between the sludge and the membrane, and a weakening of the adhesion force; while the parallel component causes the sludge to slide down along the inclined direction of the filter plate 11. For the membrane located at the lower end of the filter plate 11, the downward direction of the sludge is consistent with the opening direction of the closed chamber, making the adhesion force easier to be broken. Once the tilt angle increases to the critical point, the sludge will fall off because it cannot maintain the balance of forces. Therefore, when the actuating component 3 makes the filter plate 11 swing back and forth to a certain extent through the connecting rod 25 and the sliding roller 24, the filter plate 11 can tilt in different directions, so that the sludge on the membrane at both ends of the filter plate 11 can fall off more easily.

[0037] Meanwhile, the filter plate 11 generates a certain centrifugal force during the swinging process. At this time, the direction of the centrifugal force is from the top of the filter plate 11 along the direction parallel to the filter plate 11 film and close to the bottom of the filter plate 11. This direction coincides with the component of the gravity of the sludge. Therefore, the sludge attached to the filter plate 11 film is more likely to overcome the adhesion between the sludge and the film under the action of centrifugal force and gravity, so the sludge will be more likely to fall off the filter plate 11, thereby further avoiding the situation where the sludge adheres to the filter plate 11.

[0038] Among them, reference Figure 1 and Figure 3 In this embodiment, the actuating assembly 3 includes a gear 31, a rack, a rotating rod 33, a connecting frame 34, and a rotating motor 35.

[0039] In this embodiment, two gears 31 are provided, both of which are rotatably mounted on the frame 1 and located on the same end face of the frame 1. The centers of the two gears 31 are at the same height. A chain 32 is sleeved on the two gears 31 and meshes with both gears 31 simultaneously. In this embodiment, two rotating rods 33 are also provided, each corresponding to one of the two gears 31. One end of the rotating rod 33 is fixedly connected to one end of the gear 31, and the end of the rotating rod 33 away from the gear 31 is rotatably connected to the connecting frame 34. Both rotating rods 33 are rotatably connected to the connecting frame 34 simultaneously. The rotating rods 33 on the two gears 31 are always in a parallel state. Multiple levers 36 are provided on the end of the connecting frame 34 near the connecting rod 25. The multiple levers 36 correspond one-to-one with one of the multiple sets of connecting rods 25. The levers 36 slide against the end of the connecting rod 25 away from the airbag 21. The rotating motor 35 is fixedly mounted on the frame 1, and the output shaft of the rotating motor 35 is coaxially fixedly connected to one of the gears 31.

[0040] When the air bladder 21 inflates, all the filter plates 11 are separated at equal intervals, and the closed chambers between adjacent filter plates 11 are opened. Most of the sludge in the closed chambers falls out under the influence of gravity. At this time, all filter plates 11 are in a vertical position. Then, the rotating motor 35 is started, which drives one of the gears 31 to rotate. Then, gear 31 drives the other gear 31 to rotate through the chain 32. Since both gears 31 are meshed with the chain 32, they can rotate synchronously. The rotating rods 33 on the two gears 31 can also rotate synchronously. Since the two rotating rods 33 are initially parallel to each other, they remain parallel. Therefore, the two rotating rods... 33. The connecting frame 34 forms a double-crank rocker mechanism, and the two rotating rods 33 are of the same length and parallel. Therefore, the connecting frame 34 can remain horizontal as it rotates with the rotating rods 33. During the rotation of the connecting frame 34, its height will first rise and then fall. During the rising of the connecting frame 34, the levers 36 on the connecting frame 34 make circular arc movements (i.e., the movement trajectory of each lever 36 is a circular arc). When the connecting frame 34 reaches its highest point, the levers 36 will touch one end of the corresponding connecting rod 25. Then, as the connecting frame 34 continues to rotate, the levers 36 will continue to make circular arc movements, but the height of the levers 36 will continue to fall with the connecting frame 34. At the same time, because the levers 36 are making circular arc movements, the height of the levers 36 will continue to fall. A force perpendicular to the connecting rod 25 is also applied to the connecting rod 25. The other end, away from the connecting rod 25, is fixedly connected to the filter plate 11 via the slide rail 23. Therefore, the force applied by the lever 36 to the connecting rod 25 can be considered as the force applied by the lever 36 to the filter plate 11, and this force is perpendicular to the filter plate 11. After receiving the force from the lever 36, since the top of the filter plate 11 is connected to the air bladder 21, the bottom of the filter plate 11 will rotate around the connection point between the filter plate 11 and the air bladder 21. Therefore, the filter plate 11 will be in an inclined state. As the lever 36 continues to move, its height decreases with the height of the connecting frame 34, while the height of the bottom of the connecting rod 25 increases with the rotation angle of the filter plate 11. The connecting rod 25 and the lever 36 will gradually slide apart. After the connecting rod 25 and the lever 36 separate, the connecting rod 25 and the filter plate 11 will return to a vertical state under the action of gravity. Then, the rotating motor 35 will reverse, the connecting frame 34 will also reverse, and the lever 36 on the connecting frame 34 will also reverse, and then abut against the other end of the corresponding connecting rod 25. As the lever 36 and the connecting frame 34 continue to reverse, the connecting rod 25 and the filter plate 11 will tilt in another direction. Therefore, by continuously rotating the rotating motor 35, the reciprocating swing of the filter plate 11 can be achieved, that is, the tilting of the filter plate 11 can be achieved. When the tilting of the filter plate 11 is not needed, the lever 36 can be returned to its original position by rotating the motor 35, rotating the rod 33, and connecting frame 34.The filter plate 11 can return to a vertical position under the influence of gravity.

[0041] It should be noted that, since the filter plate 11 in this embodiment is connected to the airbag 21, and the airbag 21 itself has a certain elasticity, when the actuating component 3 drives the filter plate 11 to swing to the right, the airbag 21 on the right side of the filter plate 11 will be compressed, while the airbag 21 on the left side of the filter plate 11 will be stretched. Therefore, at the moment when the actuating block 36 in the actuating component 3 separates from the connecting rod 25, the filter plate 11 and the connecting rod 25 will have a relatively large return acceleration (i.e., clockwise angular acceleration) due to the elastic force of the airbag 21. The speed of plate 11 changes relatively quickly, while the sludge on the right end face of filter plate 11 remains stationary due to inertia. Filter plate 11 has already rotated clockwise at this time, so the sludge on the membrane on the right end of filter plate 11 separates from the membrane, making it easier for the sludge on the right end face of filter plate 11 to be thrown off. Similarly, when the actuating component 3 drives filter plate 11 to swing to the left, when filter plate 11 moves back to the left, the sludge on the left end face of filter plate 11 is more easily thrown off, thereby further improving the overall removal effect of residual sludge on filter plate 11.

[0042] Reference Figure 4 , Figure 5 , Figure 6 and Figure 7In this embodiment, all connecting rods 25 have internal air guide grooves 251, which are arranged along the length of the connecting rods 25. The frame 1 in this embodiment is also equipped with an air pump 6, which has a heating component inside to convert the blown air into hot air. The air pump 22 is connected to the air guide grooves 251 in multiple connecting rods 25 via a hose 7. Multiple air nozzles 4 are provided on the outer wall of the connecting rods 25, and each air nozzle 4 is connected to the air guide groove 251. In this embodiment, each connecting rod 25 has three air nozzles 4, and each air nozzle 4 is directly opposite the adjacent filter plate 11 of the corresponding filter plate 11. Because the actuating component 3 in this embodiment can drive all connecting rods 25 to rotate synchronously, it can... All filter plates 11 rotate simultaneously, ensuring that they do not collide. The synchronized rotation also allows the air nozzle 4 on the connecting rod 25 to always face the adjacent filter plate 11. After all filter plates 11 are separated, the air pump 6 is activated, and gas enters the air guide groove 251 through the hose 7. The hot air in the air guide groove 251 is then ejected from the air nozzle 4, blowing onto the end face of the filter plate 11 (i.e., the membrane on the filter plate 11). This further cleans the sludge from the end face of the filter plate 11. The hot air also dries the remaining sludge, further evaporating the moisture and reducing its stickiness, thus facilitating its detachment from the membrane on the filter plate 11.

[0043] In addition, in this embodiment, a semi-annular connecting block 41 is provided at the end of the air nozzle 4 near the connecting rod 25. An air guide hole 42 communicating with the air nozzle 4 is provided at the end of the connecting block 4 away from the air nozzle 4. An annular groove 252 coaxially arranged with the connecting rod 25 is provided inside the peripheral wall of the connecting rod 25. A swing groove 253 for the air nozzle 4 to pass through is provided on the outer peripheral wall of the connecting rod 25. The swing groove 253 communicates with the annular groove 252. The semi-annular connecting block 41 is located within the annular groove 252, and the air nozzle 4 passes through the swing groove 253. The connecting block 41 can reciprocate within the annular groove 252 around the axis of the connecting rod 25, thereby causing the air nozzle 4 to reciprocate within the swing groove 253 (see reference). Figure 8 and Figure 9 ).

[0044] Since the filter plate 11 in this embodiment is reciprocating, due to the rebound effect of the airbag 21, when multiple filter plates 11 simultaneously accelerate back along the left side, the sludge on the right end face of the filter plate 11 will detach from the filter plate 11 due to inertia. The filter plate 11 to the right of the filter plate 11 will then collide with the sludge that just detached from its right end face as it returns to the left, causing the sludge to re-adhere to the adjacent filter plate 11. At this time, since the connecting rod 25 and the filter plate 11 are oscillating simultaneously, the air nozzle 4 on the connecting rod 25 will also remain stationary due to inertia. As the connecting rod 25 rotates to the left along with the filter plate 11, the air nozzle 4 on the connecting rod 25 will slide relative to the connecting rod 25, and the air nozzle 4 on the connecting rod 25 will slide to the rightmost side of the swing groove 253. At this time, the air nozzle 4 is directly facing the filter plate 11 on the right side of the filter plate 11, so that the air nozzle 4 can blow off the sludge that has re-adhered to the adjacent filter plate 11. Similarly, when multiple filter plates 11 accelerate back along the right side at the same time, the sludge on the filter plate 11 on the left side of the filter plate 11 can be blown off, which further improves the overall sludge removal effect of this equipment.

[0045] Finally, the bottom of the frame 1 in this embodiment is also provided with a transport component 5 for transporting the filtered sludge. In this embodiment, the transport component 5 is a conveyor belt located directly below the filter plate 11. When the sludge falls from the filter plate 11, it falls onto the conveyor belt and is then transported to a designated location by the conveyor belt.

[0046] The working principle of a wastewater recycling treatment device for the production of calcium hydroxybenzenesulfonate in this embodiment is as follows: After the filter plates 11 squeeze the water out of the sludge in the closed chamber, all the filter plates 11 are close together. Then, the hydraulic cylinder 12 is activated to drive the rightmost filter plate 11 to slide to the right. At the same time, the air pump 22 is activated to inflate the air bladder 21. Since all the air bladders 21 are connected, all the air bladders 21 will inflate simultaneously. And each adjacent filter plate 11 is provided with an air bladder 21. Therefore, the air bladders 21 will simultaneously open the adjacent filter plates 11, thereby opening the closed chamber between adjacent filter plates 11 at the same time, so that the sludge in the closed chamber can be discharged. Compared with the prior art, this method is more efficient. The filter plates 11, gathered together, are separated one by one, either manually or using equipment. The synchronization mechanism 2 in this embodiment has higher working efficiency. After all the filter plates 11 are separated, they are all in a vertical position. Then, the rotating motor 35 is started and rotated clockwise. The rotating motor 35 drives the connecting frame 34 to rotate instantaneously through the gear 31, chain 32, and rotating rod 33. The lever 36 on the connecting frame 34 also rotates clockwise. When the lever 36 reaches its highest point, it abuts against the left end face of the bottom of the corresponding connecting rod 25. As the lever 36 continues to move, it drives the connecting rod 25 to rotate around the airbag. When the connection point of 21 rotates counterclockwise, the connecting rod 25 drives the filter plate 11 to rotate synchronously through the sliding roller 24, thereby causing the filter plate 11 to be tilted towards the right side. At this time, the balance of external forces on the sludge on the membrane at the left end of the filter plate 11 is broken, making it easier for the sludge adhering to the membrane to fall off. At the same time, during the rotation of the filter plate 11, the air bladder 21 on the right side of the filter plate 11 is squeezed, and the air bladder 21 on the left side is stretched. Therefore, as the filter plate 11 continues to rotate, the contact block 36 will slide and separate from the filter plate 11. Due to its elasticity, the air bladder 21 will apply a reverse force to the filter plate 11, thereby driving the filter plate 11 forward. The filter plate 11 rotates counterclockwise, and due to the sudden release of the rebound force of the airbag 21, the filter plate 11 has a relatively large angular acceleration when rotating clockwise (return rotation). The sludge on the membrane on the right side of the filter plate 11 remains stationary due to inertia. Therefore, the sludge on the membrane on the right side of the filter plate 11 separates from the filter plate 11, which further facilitates the removal of the remaining sludge on the membrane of the filter plate 11. Similarly, after all the sludge on the membrane on the right side of the filter plate 11 has been further cleaned, the rotating motor 35 reverses, so that the filter plate 11 rotates clockwise, which finally further cleans the sludge on the membrane on the left side of the filter plate 11, thereby improving the cleaning effect of the residual sludge on the filter plate 11.

[0047] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be included within the scope of protection of this application.

Claims

1. A wastewater recycling treatment device for the production of calcium hydroxybenzenesulfonate, characterized in that, include: A frame (1) is provided with multiple filter plates (11) slidably arranged on the frame (1), and a hydraulic cylinder (12) is provided on one side of the frame (1) to squeeze the multiple filter plates (11). The synchronization mechanism (2) includes multiple airbags (21), which are arranged along the sliding direction of the filter plate (11) and are connected to each other in sequence. A filter plate (11) is connected at the connection point of each two adjacent airbags (21). An air pump (22) for inflating and deflating the airbags (21) is also provided on the frame (1). The synchronization mechanism (2) also includes two slide rails (23), which are installed on the frame (1) and are arranged opposite to each other on both sides of the sliding direction of the multiple filter plates (11). The slide rails (23) are provided with grooves (231). Each filter plate (11) is provided with a roller (24) on both sides. All rollers (24) are slidably arranged in the grooves (231). Each roller (24) is connected to a connecting rod (25) at one end away from the filter plate (11). The connecting rod (25) is arranged perpendicular to the axis of the roller (24). The frame (1) is also provided with a toggle assembly (3). The toggle assembly (3) can simultaneously drive all connecting rods (25) to swing back and forth around the connection between the filter plate (11) and the airbag (21).

2. The wastewater recycling treatment device for the production of calcium hydroxybenzenesulfonate according to claim 1, characterized in that, The actuating assembly (3) includes a gear (31), a chain (32), a rotating rod (33), a connecting frame (34), and a rotating motor (35). There are two gears (31), both of which are rotatably mounted on the frame (1). The chain (32) meshes with both gears (31) simultaneously. There are also two rotating rods (33), each corresponding to one of the two gears (31). One end of the rotating rod (33) is fixedly connected to one end of the gear (31). The ends of the two rotating rods (33) away from the gears (31) are rotatably connected to the connecting frame (34). The end of the connecting frame (34) near the connecting rod (25) is provided with multiple levers (36), each corresponding to one of the connecting rods (25), and the levers (36) slide against the connecting rod (25). The rotating motor (35) is mounted on the frame (1) and is coaxially fixedly connected to one of the gears (31).

3. The wastewater recycling treatment device for the production of calcium hydroxybenzenesulfonate according to claim 1, characterized in that, Each of the connecting rods (25) has an air guide groove (251) inside, which is connected to an external air source. The connecting rods (25) have multiple air nozzles (4) on their outer walls, which are connected to the air guide grooves (251). The air nozzles (4) are facing the end face of the filter plate (11).

4. A wastewater recycling treatment device for the production of calcium hydroxybenzenesulfonate according to claim 3, characterized in that, The nozzle (4) is provided with a semi-annular connecting block (41) at one end near the connecting rod (25). The connecting block (41) is provided with an air guide hole (42) communicating with the nozzle (4) at the other end away from the nozzle (4). The connecting rod (25) is provided with an annular groove (252) coaxial with the connecting rod (25) in the inner wall. The connecting rod (25) is provided with a swing groove (253) for the nozzle (4) to pass through on the outer wall. The swing groove (253) is connected with the annular groove (252), and the air guide hole (42) is connected with the air guide groove (251). The connecting block (41) is located in the annular groove (252) and can slide back and forth in the annular groove (252). The nozzle (4) swings back and forth in the swing groove (253).

5. A wastewater recycling treatment device for the production of calcium hydroxybenzenesulfonate according to claim 4, characterized in that, The gas supplied by the external gas source has a certain temperature.

6. A wastewater recycling treatment device for the production of calcium hydroxybenzenesulfonate according to claim 1, characterized in that, The bottom of the frame (1) is also provided with a transport component (5) for transporting the filtered sludge.

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