Salicylic acid wastewater treatment device

Abstract

The invention provides a salicylic acid wastewater treatment device, and relates to the technical field of wastewater treatment device.The salicylic acid wastewater treatment device comprises a salicylic acid wastewater pool, the salicylic acid wastewater pool is slidably connected with a roller frame, the roller frame is rotatably connected with a movable frame, the roller frame is rotatably connected with large rollers, and a belt is wound between the large rollers; a first motor is fixed to the roller frame, guide rods are fixed to the roller frame, a push plate is slidably connected between the guide rods, and a pressure spring is fixedly connected between the push plate and the roller frame. A first motor rotates, so that a belt drives a long rod to rotate, the long rod is meshed with a first gear, the first gear drives a connecting rod, a roller frame moves forwards, a push plate makes contact with the connecting rod and extrudes the connecting rod, and the push plate is extruded to move backwards, so that microorganisms are pushed into a salicylic acid wastewater pool; therefore, microorganisms are scattered more uniformly and are in full contact, and the treatment efficiency of the salicylic acid wastewater is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment devices, and particularly to a salicylic acid wastewater treatment device. Background Art

[0002] Salicylic acid is an important chemical raw material, which is widely used in the production of fine chemical products such as pharmaceuticals, food, spices, dyes, and rubber auxiliaries. During the industrial production process, for every 1 ton of salicylic acid product produced, approximately 15 tons of toxic organic chemical wastewater will be discharged.

[0003] Salicylic acid wastewater is an industrial wastewater containing high concentrations of organic matter, salts, and toxic substances. If the salicylic acid wastewater is directly discharged, the harmful substances in the salicylic acid wastewater will pollute surface water and groundwater, damaging the water ecosystem and the survival of animals and plants. Therefore, before discharging the wastewater, it is necessary to treat the wastewater. The purification methods of wastewater include aeration, microorganisms, or chemical reagents, etc.

[0004] When using microorganisms to purify wastewater, first, the salicylic acid wastewater is introduced into the reaction tank, and then a crane is used to sprinkle microorganisms with specific functions into the reaction tank. The microorganisms will react with the wastewater. Under the action of the microorganisms, the macromolecular pollutants that are difficult to degrade in the salicylic acid wastewater will be converted into easily degradable small-molecule organic substances, and the insoluble organic substances will be converted into soluble organic substances. After all the wastewater is treated, the treated wastewater can be discharged from the reaction tank.

[0005] In the above process of treating salicylic acid wastewater, the microorganisms are put into the reaction tank by using a crane, but this feeding method cannot evenly sprinkle the microorganisms everywhere in the reaction tank, resulting in low wastewater treatment efficiency. Therefore, a salicylic acid wastewater treatment device is now developed, which can evenly sprinkle the microorganisms into the reaction tank and improve the treatment efficiency of salicylic acid wastewater. Summary of the Invention

[0006] The present invention provides a salicylic acid wastewater treatment device to overcome the disadvantages of being unable to evenly sprinkle the microorganisms into the reaction tank, difficult to control the amount of material discharged, and low wastewater treatment efficiency.

[0007] The technical solution of the present invention is: a salicylic acid wastewater treatment device, including a salicylic acid wastewater tank, symmetrically and slidably connected with roller frames on the salicylic acid wastewater tank, rotatably connected with moving frames on the roller frames, rotatably connected with large rollers on the roller frames, a belt is wound between the large rollers, a first motor is fixed on the roller frame, the output shaft of the first motor is fixedly connected with the large roller, a guide rod is fixed on the roller frame, a push plate is slidably connected between the guide rods, and a pressure spring is fixedly connected between the push plate and the roller frame.

[0008] As a preferred technical solution of the present invention, a screw is fixed in the salicylic acid wastewater pool, a connecting rod is fixed on the roller frame, a first gear is rotatably connected to the connecting rod, a plurality of long rods are fixed on the belt, the first gear and the long rods are meshed with each other, and the first gear is threadedly connected to the screw. The long rods are meshed with the first gear, so that the first gear rotates, thereby making the first gear move forward and backward on the screw.

[0009] As a preferred technical solution of the present invention, a fixing piece is fixed on the salicylic acid wastewater pool, a support frame is fixed on the connecting piece, a second gear is rotatably connected to the support frame, a pull rope is fixed on the second gear, a counterweight is fixed on the pull rope, the counterweight is slidably connected to the fixing piece, the counterweight is pressed and matched with the push plate, a connecting piece is fixed on the connecting rod, racks are symmetrically arranged on the connecting piece, and the racks are meshed with the corresponding second gear. The counterweight is pressed and matched with the push plate, thereby replacing people manually pushing the push plate and reducing manpower consumption.

[0010] As a preferred technical solution of the present invention, the connecting piece is slidably connected to the rack, a fixing rod is fixed on the rack, a latch is slidably connected to the fixing rod, and the latch is engaged with the connecting piece. The latch is engaged with the connecting piece to prevent the rack from sliding and becoming unstable.

[0011] As a preferred technical solution of the present invention, a feeding mechanism for automatically feeding microorganisms is also included, the feeding mechanism includes a connecting frame, the connecting frame is fixed on one of the roller frames, a moving part is slidably connected to the connecting frame, a rotating shaft is rotatably connected to the moving part, an electric push rod is fixed to the rotating shaft, a storage box is fixed to the telescopic end of the electric push rod, and a feeding port is provided on the storage box. The telescopic end of the electric push rod extends upward, so as to pour out the microorganisms in the storage box to complete the feeding.

[0012] As a preferred technical solution of the present invention, a fixing rod is fixed on the moving part, the fixing rod is pressed and matched with the storage box, and a force storage spring is fixed between the moving part and the connecting frame. Hitting the moving part drives the electric push rod and then drives the storage box to shake, so that the microorganisms in the storage box fall due to the shaking, avoiding excessive feeding.

[0013] As a preferred technical solution of the present invention, a connecting plate is fixed on the connecting frame, a second motor is fixed on the connecting plate, a cam is fixed on the output shaft of the second motor, a connecting rod is fixed on the moving part, and the cam and the connecting rod are pressed and matched. The output shaft of the second motor shakes the cam to rotate, so that the cam indirectly hits the connecting rod, so that the connecting rod drives the moving part to shake, and the moving part drives the electric push rod and then drives the storage box to shake, thereby replacing people's manual hitting, and each hitting force is constant and more regular.

[0014] As a preferred technical solution of the present invention, it also includes a uniform mechanism that can control the amount of single feeding, and the uniform mechanism includes a telescopic rod, the telescopic rod is fixed on the cam, the collecting piece is fixed on the connecting plate, the telescopic end of the telescopic rod is fixed with a switch piece, and the switch piece is slidably connected to the collecting piece. The rotation of the cam drives the fixed end of the telescopic rod to rotate, thereby converting into the extension and retraction of the telescopic end of the telescopic rod and the left and right movement of the switch piece. The rotation speed of the cam is constant, so that the movement of the switch piece is constant, and then the rate of microbial feeding is constant.

[0015] As a preferred technical solution of the present invention, the collecting member is rotatably connected to a rotating shaft, a telescopic member is fixed to the rotating shaft, a blocking rod is fixed to the collecting member, and the blocking rod is pressed and matched with the telescopic member. The telescopic member is placed on the upper side of the push plate, so as to ensure that the height of the microorganism accumulation on the belt does not exceed the height of the push plate, thereby avoiding the situation where the push plate cannot push out all the microorganisms at one time.

[0016] Beneficial effect: The present invention drives the large roller and then drives the belt to rotate through the first motor, and the belt drives the long rod to rotate, so that the long rod and the first gear are meshed with each other, so that the first gear drives the connecting rod and then the roller frame moves forward, so that the push plate contacts and squeezes the connecting rod, and the push plate is squeezed and moved backward, so that the microorganisms are pushed into the salicylic acid wastewater pool, and the microorganisms are spread more evenly and fully contacted by spreading the material while moving, thereby improving the treatment efficiency of salicylic acid wastewater.

[0017] The present invention causes the storage box to tilt by extending the telescopic end of the electric push rod upward, and drives the cam to rotate through the output shaft of the second motor, so that the cam intermittently hits the connecting rod, thereby causing the storage box to shake, and the microorganisms are shaken down by the shaking to carry out loading.

[0018] The present invention drives the fixed end of the telescopic rod to rotate by rotating the cam, thereby converting into extension and retraction of the telescopic end of the telescopic rod and left and right movement of the switch member. The rotation speed of the cam is constant, so that the movement of the switch member is constant, and further the rate of microorganism feeding is constant. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional structure schematic diagram of the present invention.

[0020] Figure 2 This is a three-dimensional structure schematic diagram of components such as the push plate, belt, and screw of the present invention.

[0021] Figure 3 This is a three-dimensional structure schematic diagram of components such as the belt, pressure spring, and guide rod of the present invention.

[0022] Figure 4 This is a three-dimensional structure schematic diagram of components such as the connecting rod, belt, and roller frame of the present invention.

[0023] Figure 5 This is a three-dimensional structure schematic diagram of components such as the support frame, pull rope, and rack of the present invention.

[0024] Figure 6 This is a cross-sectional view of the three-dimensional structure of components such as the rack, pin, and fixed rod of the present invention.

[0025] Figure 7 This is a three-dimensional structure schematic diagram of components such as the fixing member, support frame, and pull rope of the present invention.

[0026] Figure 8 This is a three-dimensional structure schematic diagram of components such as the storage box, fixed rod, and connecting plate of the present invention.

[0027] Figure 9 This is a three-dimensional structure schematic diagram of components such as the rotating shaft, storage box, and cam of the present invention.

[0028] Figure 10 This is a three-dimensional structure schematic diagram of components such as the telescopic rod, switch member, and telescopic member of the present invention.

[0029] Figure 11 This is a three-dimensional structure schematic diagram of components such as the rotating shaft, blocking rod, and telescopic member of the present invention.

[0030] Wherein: 1 - salicylic acid wastewater tank, 11 - roller rack, 1101 - large roller, 12 - moving rack, 13 - first motor, 14 - belt, 1401 - long rod, 15 - push plate, 16 - guide rod, 17 - pressure spring, 18 - screw rod, 19 - connecting rod, 110 - first gear, 111 - fixing piece, 112 - connecting piece, 113 - rack, 114 - fixing rod, 115 - pin, 116 - support frame, 117 - second gear, 118 - pull rope, 119 - counterweight, 2 - connecting frame, 21 - energy storage spring, 22 - moving part, 2201 - rotating shaft, 23 - storage box, 24 - fixing rod, 25 - electric push rod, 26 - connecting rod, 27 - second motor, 28 - connecting plate, 29 - cam, 3 - telescopic rod, 31 - switch part, 32 - collecting part, 33 - telescopic part, 34 - blocking rod, 35 - rotating shaft. Detailed implementation mode

[0031] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, but it is not intended to limit the present invention.

[0032] Embodiment 1: A salicylic acid wastewater treatment device, as Figures 1-7 shown, includes a salicylic acid wastewater tank 1. Symmetrically and slidably connected to the salicylic acid wastewater tank 1 is a roller rack 11. Rotatably connected to the roller rack 11 is a moving rack 12. Rotatably connected to the roller rack 11 are large rollers 1101. A belt 14 is wound around the large rollers 1101. Fixed to the roller rack 11 is a first motor 13. The first motor 13 is electrically connected to an external control system. The output shaft of the first motor 13 is fixedly connected to the large roller 1101. Fixed to the roller rack 11 are guide rods 16. Slidably connected between the guide rods 16 is a push plate 15. A pressure spring 17 is fixedly connected between the push plate 15 and the roller rack 11.

[0033] The principle of using microorganisms to treat salicylic acid wastewater is mainly based on the metabolic action of microorganisms. Through the metabolic activities of microorganisms, salicylic acid and its derivatives are decomposed into simple inorganic substances (such as carbon dioxide and water), or microorganisms or their metabolites (such as extracellular polymers) can be used as flocculants to cause the suspended particles and organic substances in the wastewater to coagulate and precipitate.

[0034] Specifically, when treating the salicylic acid wastewater in the salicylic acid wastewater tank 1, first, people control the first motor 13 to start through an external control system. The first motor 13 drives the large roller 1101, which in turn drives the belt 14 to rotate. At the same time, people add microorganisms above the belt 14. As the belt 14 rotates, the microorganisms gradually cover the upper part of the belt 14. After the belt 14 is covered with microorganisms, the push plate 15 is pushed backward. The push plate 15 pushes the microorganisms on the belt 14 into the salicylic acid wastewater tank 1 to react with the salicylic acid wastewater. The pressure spring 17 is compressed. After the microorganisms are pushed down, the push plate 15 is released, and the pressure spring 17 resets to drive the push plate 15 to move forward and reset. Then, the roller frame 11 is moved, and the above operation is repeated to put microorganisms into other positions in the salicylic acid wastewater tank 1. At the same time, the moving frame 12 rotates between the salicylic acid wastewater tank 1 and the roller frame 11, so that the moving frame 12 can reduce the friction between the roller frame 11 and the salicylic acid wastewater tank 1.

[0035] As Figure 2 , Figure 4 , Figure 5 and Figure 6 shown, a screw 18 is fixed in the salicylic acid wastewater tank 1, a connecting rod 19 is fixed on the roller frame 11, a first gear 110 is rotatably connected to the connecting rod 19, a long rod 1401 is fixed on the belt 14, the first gear 110 meshes with the long rod 1401, and the first gear 110 is threadedly connected to the screw 18.

[0036] In this embodiment, when loading microorganisms, the rotation of the belt 14 will drive the long rod 1401 to rotate. When the long rod 1401 meshes with the first gear 110, the microorganisms are about to cover the upper part of the belt 14. The meshing of the long rod 1401 with the first gear 110 causes the first gear 110 to rotate. The threaded connection between the first gear 110 and the screw 18 causes the first gear 110 to rotate and move forward at the same time. The first gear 110 drives the connecting rod 19, which in turn drives the roller frame 11 to move forward. There are two groups of long rods 1401 on the belt 14. Whenever the long rod 1401 meshes with the first gear 110, the first gear 110 moves forward a certain distance. Combined with material spreading, the belt 14 moves forward a certain distance every half turn, and material is spread once every time it moves a certain distance, so that the microorganism spreading is more uniform.

[0037] To reduce the consumption of manpower, a device capable of automatically pushing the push plate 15 is provided, such as Figures 5-7As shown, a fixing member 111 is fixed on the salicylic acid wastewater tank 1. A support frame 116 is fixed on the fixing member 111 of the connecting member 112. A second gear 117 is rotatably connected to the support frame 116. A pulling rope 118 is fixed on the second gear 117. A counterweight 119 is fixed on the pulling rope 118. The counterweight 119 is slidably connected to the fixing member 111. The counterweight 119 is in extrusion fit with the push plate 15. A connecting member 112 is fixed on the connecting rod 19. Rack bars 113 are symmetrically arranged on the connecting member 112. The rack bars 113 are meshed with the corresponding second gears 117.

[0038] Specifically, when the long rod 1401 rotates and meshes with the first gear 110, the counterweight 119 will squeeze the push plate 15, so that the push plate 15 moves backward to push the microorganisms into the salicylic acid wastewater tank 1. The compression spring 17 is compressed. When the belt 14 moves, it will drive the connecting rod 19 and then drive the connecting member 112 to move together. The connecting member 112 drives the rack bar 113 to move. When the rack bar 113 meshes with the second gear 117, the second gear 117 will rotate. The second gear 117 drives the pulling rope 118 to rotate, so that the pulling rope 118 drives the counterweight 119 to move upward, so that the counterweight 119 is separated from the push plate 15. The push plate 15 is no longer squeezed. The compression spring 17 resets to drive the push plate 15 to move forward and reset. When the rack bar 113 is disengaged from the second gear 117 and no longer meshes, the connecting rod 19 moves downward and resets due to its own weight. The counterweight 119 drives the pulling rope 118 and then drives the second gear 117 to reverse.

[0039] As Figures 5-6 As shown, the connecting member 112 is slidably connected to the rack bar 113. A fixing rod 114 is fixed on the rack bar 113. A latch 115 is slidably connected to the fixing rod 114. A hole and a clamping hole are provided on the connecting member 112. The latch 115 is in clamping fit with the clamping hole on the connecting member 112.

[0040] After spreading the material once, people control the first motor 13 to reverse through an external control system. The output shaft of the first motor 13 drives the large roller 1101 and then drives the belt 14 to reverse. The belt 14 drives the long rod 1401 to reverse, so that the first gear 110 reverses and moves backward. In order to prevent the push plate 15 from being blocked by the counterweight 119 when it moves backward, the rack bar 113 is set to be slidable. However, when the rack bar 113 is slidable, an unstable situation will occur. Therefore, the fixing rod 114 is provided.

[0041] As mentioned above, when the belt 14 moves forward to spread the material, the pin 115 is engaged with the hole at the rear of the connecting piece 112, so that the counterweight 119 can normally push the push plate 15 to spread the material. When the belt 14 is to move backward to reset after spreading the material, the rack 113 is moved first, so that the pin 115 is engaged with the hole at the front of the connecting piece 112, so that before the connecting rod 19 contacts the push plate 15, the rack 113 is first engaged with the second gear 117, so that the counterweight 119 moves upward, thereby avoiding contact between the counterweight 119 and the push plate 15, and preventing the push plate 15 from being blocked by the counterweight 119 when moving backward.

[0042] Embodiment 2: Based on embodiment 1, Figures 8-9 As shown, in order to reduce the consumption of manpower, a feeding mechanism capable of automatically feeding microorganisms is provided, the feeding mechanism includes a connecting frame 2, the connecting frame 2 is fixed on one of the roller frames 11, a moving part 22 is slidably connected to the connecting frame 2, a rotating shaft 2201 is rotatably connected to the moving part 22, an electric push rod 25 is fixed to the rotating shaft 2201, the electric push rod 25 is electrically connected to the external control system, a storage box 23 is fixed to the telescopic end of the electric push rod 25, and a feeding port is provided on the storage box 23.

[0043] Specifically, when loading microorganisms, the electric push rod 25 is first started, so that the telescopic end of the electric push rod 25 is extended a certain distance, so that one end of the storage box 23 is tilted upward at a certain angle, so that the microorganisms in the storage box 23 are poured onto the belt 14, and at the same time, the output shaft of the first motor 13 drives the large roller 1101 and then drives the belt 14 to rotate, so that the microorganisms fall evenly on the belt 14. Through the control of the external control system, the extension and retraction of the electric push rod 25 are controlled, and the start and shutdown of the first motor 13 are controlled. When unloading microorganisms, the external control system controls the first motor 13 to start, and at the same time controls the telescopic end of the electric push rod 25 to extend. When the top of the belt 14 is covered with microorganisms, that is, the belt 14 rotates half a circle, the external control system controls the first motor 13 to shut down so that the belt 14 no longer rotates, and at the same time controls the telescopic end of the electric push rod 25 to retract, so that the storage box 23 no longer pours materials.

[0044] However, when pouring materials through the storage box 23, if too many microorganisms are poured into the storage box 23, the microorganisms in the storage box 23 may fall quickly when the storage box 23 is tilted, causing too much material to be poured onto the belt 14. Therefore, a fixing rod 24 is provided. Figures 8-9 As shown, a fixing rod 24 is fixed on the moving member 22 , and the fixing rod 24 is pressed and matched with the storage box 23 . A rubber pad is provided on the fixing rod 24 , and a force storage spring 21 is fixedly connected between the moving member 22 and the connecting frame 2 .

[0045] Specifically, first, the telescopic end of the electric push rod 25 is controlled to extend a certain distance through the external control system, so that the storage box 23 is slightly tilted, and then people hit the moving part 22, so that the moving part 22 shakes on the connecting frame 2, and the force storage spring 21 is deformed. The moving part 22 drives the rotating shaft 2201 and then drives the electric push rod 25 to shake. The electric push rod 25 drives the storage box 23 to shake, so that the microorganisms in the storage box 23 fall due to the slight shaking, thereby avoiding too much microorganisms falling at one time. At the same time, because the fixed rod 24 is close to the storage box 23. The side is provided with a rubber pad, it can play a buffering role for the storage box 23.

[0046] like Figures 8-9 As shown, a connecting plate 28 is fixed on the connecting frame 2, a second motor 27 is fixed on the connecting plate 28, the second motor 27 is electrically connected to the external control system, a cam 29 is fixed on the output shaft of the second motor 27, a connecting rod 26 is fixed on the moving part 22, and the cam 29 is squeezed and fitted with the connecting rod 26.

[0047] As mentioned above, when the microorganisms are to be unloaded, the second motor 27 is started, and the output shaft of the second motor 27 rotates to rotate the shaking cam 29. The shape of the cam 29 is set to be elliptical, so that the cam 29 intermittently hits the connecting rod 26 when rotating. The connecting rod 26 vibrates due to the intermittent hitting, so that the moving part 22 drives the electric push rod 25 to vibrate, and then the storage box 23 vibrates, thereby replacing people manually hitting the moving part 22 and reducing manpower consumption. The second motor 27 is controlled by an external control system to control the opening and closing of the second motor 27, and cooperate with the electric push rod 25 and the first motor 13 to unload the microorganisms.

[0048] In order to make the addition of microorganisms more uniform, a uniform mechanism is provided to control the amount of single feeding so that the amount each time is a fixed value, such as Figures 10-11 As shown, the uniform mechanism includes a telescopic rod 3, which is fixed on the cam 29, a collecting piece 32 is fixed on the connecting plate 28, a switch piece 31 is fixed on the telescopic end of the telescopic rod 3, the switch piece 31 is slidably connected to the collecting piece 32, and a discharge port is provided on the collecting piece 32.

[0049] Specifically, when loading the microorganisms, the storage box 23 is tilted, and the microorganisms will first fall into the collecting piece 32, but will be blocked by the switch piece 31. After the second motor 27 is started, the output shaft of the second motor 27 drives the cam 29 to rotate, and the cam 29 drives the telescopic rod 3 to rotate together. However, since the switch piece 31 is fixed on the telescopic end of the telescopic rod 3, and the switch piece 31 is slidably connected to the collecting piece 32, the fixed end of the telescopic rod 3 rotates together with the cam 29. The rotation of the telescopic end of the telescopic rod 3 is disassembled into the extension and shortening of the telescopic end of the telescopic rod 3, and the telescopic end of the telescopic rod 3 drives the switch piece 31 to move horizontally. Because the output shaft of the second motor 27 drives the cam 29 to rotate at a constant rate, the speed of the translation of the switch piece 31 is constant, so that the amount of material discharged each time is a constant value, so that the material is spread more evenly.

[0050] like Figures 10-11 As shown, the collecting member 32 is rotatably connected with a rotating shaft 35 , a telescopic member 33 is fixed on the rotating shaft 35 , a blocking rod 34 is fixed on the collecting member 32 , and the blocking rod 34 is pressed and matched with the telescopic member 33 .

[0051] When the push plate 15 pushes the microorganisms on the belt 14 into the salicylic acid wastewater, because the height of the push plate 15 is limited, if the microorganisms on the belt 14 are accumulated too high, the push plate 15 will not be able to push them all out at once when pushing. Therefore, it is necessary to control the amount of microorganisms on the belt 14. Because the telescopic member 33 itself has a certain weight, it can maintain a tendency to flip downward, but because the blocking rod 34 blocks the telescopic member 33, the telescopic member 33 will not flip downward to block the discharge port on the collecting member 32, but will always remain in a state of being squeezed with the blocking rod 34. When unloading, the telescopic member 33 will press against the upper side of the push plate 15, thereby smoothing the microorganisms and pushing excess microorganisms to other places on the belt 14, thereby preventing the microorganisms on the belt 14 from accumulating higher than the height of the push plate 15, and avoiding the microorganisms from being unable to be pushed down at once due to excessive accumulation, thereby causing uneven spreading of microorganisms.

[0052] Although the present invention is described in detail with reference to the above embodiments, it is obvious to those skilled in the art through this disclosure that various changes or modifications may be made to the present invention without departing from the principle and spirit of the present invention defined by the claims. Therefore, the detailed description of the embodiments of the present disclosure is only used to explain, not to limit the present invention, but the scope of protection is limited by the content of the claims.

Claims

1. A salicylic acid wastewater treatment device, comprising a salicylic acid wastewater pool (1), characterized in that: The salicylic acid wastewater pool (1) is symmetrically and slidably connected to a roller frame (11), the roller frame (11) is rotatably connected to a moving frame (12), the roller frame (11) is rotatably connected to a large roller (1101), a belt (14) is wound between the large rollers (1101), a first motor (13) is fixed to the roller frame (11), an output shaft of the first motor (13) is fixedly connected to the large roller (1101), a guide rod (16) is fixed to the roller frame (11), a push plate (15) is slidably connected between the guide rods (16), and a pressure spring (17) is fixedly connected between the push plate (15) and the roller frame (11).

2. A salicylic acid wastewater treatment device as claimed in claim 1, characterized in that: A screw rod (18) is fixed in the salicylic acid wastewater pool (1), a connecting rod (19) is fixed on the roller frame (11), a first gear (110) is rotatably connected to the connecting rod (19), a plurality of long rods (1401) are fixed on the belt (14), the first gear (110) and the long rods (1401) are meshed with each other, and the first gear (110) and the screw rod (18) are threadedly connected.

3. A salicylic acid wastewater treatment device as claimed in claim 2, characterized in that: A fixing member (111) is fixed on the salicylic acid wastewater pool (1), a support frame (116) is fixed on the fixing member (111) on the connecting member (112), a second gear (117) is rotatably connected to the support frame (116), a pull rope (118) is fixed on the second gear (117), a counterweight (119) is fixed on the pull rope (118), the counterweight (119) is slidably connected to the fixing member (111), the counterweight (119) is pressed and matched with the push plate (15), a connecting member (112) is fixed on the connecting rod (19), racks (113) are symmetrically arranged on the connecting member (112), and the racks (113) and the corresponding second gear (117) are meshed with each other.

4. A salicylic acid wastewater treatment device as claimed in claim 3, characterized in that: The connecting member (112) is slidably connected to the rack (113); a fixing rod (114) is fixed to the rack (113); a latch (115) is slidably connected to the fixing rod (114); and the latch (115) is snap-fitted with the connecting member (112).

5. A salicylic acid wastewater treatment device as claimed in claim 4, characterized in that: The invention also comprises a feeding mechanism for automatically feeding microorganisms, the feeding mechanism comprising a connecting frame (2), the connecting frame (2) being fixed on one of the roller frames (11), a moving part (22) being slidably connected to the connecting frame (2), a rotating shaft (2201) being rotatably connected to the moving part (22), an electric push rod (25) being fixedly connected to the rotating shaft (2201), a storage box (23) being fixed on the telescopic end of the electric push rod (25), and a feeding port being arranged on the storage box (23).

6. A salicylic acid wastewater treatment device as claimed in claim 5, characterized in that: A fixing rod (24) is fixed on the moving member (22), the fixing rod (24) is pressed and matched with the storage box (23), and a force storage spring (21) is fixedly connected between the moving member (22) and the connecting frame (2).

7. A salicylic acid wastewater treatment device as claimed in claim 6, characterized in that: A connecting plate (28) is fixed on the connecting frame (2), a second motor (27) is fixed on the connecting plate (28), a cam (29) is fixed on the output shaft of the second motor (27), a connecting rod (26) is fixed on the moving member (22), and the cam (29) is pressed and matched with the connecting rod (26).

8. A salicylic acid wastewater treatment device as claimed in claim 7, characterized in that: The invention also comprises a uniform mechanism capable of controlling the amount of material discharged at a time, so as to ensure uniform material discharge. The uniform mechanism comprises a telescopic rod (3), the telescopic rod (3) is fixed on a cam (29), a collecting member (32) is fixed on the connecting plate (28), a switch member (31) is fixed on the telescopic end of the telescopic rod (3), and the switch member (31) is slidably connected to the collecting member (32).

9. A salicylic acid wastewater treatment device as claimed in claim 8, characterized in that: The collecting member (32) is rotatably connected to a rotating shaft (35), a telescopic member (33) is fixed to the rotating shaft (35), a blocking rod (34) is fixed to the collecting member (32), and the blocking rod (34) is extrusion-fitted with the telescopic member (33).

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