Anti-clogging granular ammonia-nitrogen removal agent automatic feeding and dosing device and feeding method thereof

Abstract

The present application relates to the technical field of feeding and dosing device, especially relates to an automatic feeding and dosing device for anti-blocking granular ammonia-nitrogen removing agent and a feeding method thereof. The automatic feeding and dosing device and the feeding method thereof are aimed at solving the technical problems that the labor intensity of workers is large, dust is harmful to human body, the continuity and uniformity of dosing cannot be guaranteed, and the saving of reagent is not conducive in the prior art. The present application provides an automatic feeding and dosing device for anti-blocking granular ammonia-nitrogen removing agent, which comprises a supporting column, a material bin, a lifting control device, a guide assembly, an outer dust cover, a rotary control assembly, a sealing cover plate, a limiting seat, a screen, a flexible knocking assembly, a power device, a spraying pipe, a nozzle and a discharging adjusting assembly. The present application adopts a crane to automatically feed the ammonia-nitrogen removing agent, ensures the continuity and uniformity of dosing of the ammonia-nitrogen removing agent, saves the amount of the ammonia-nitrogen removing agent, effectively suppresses dust dispersion through spraying, and reduces the harm to human body.

Description

Technical Field

[0001] This invention relates to the field of feeding and dispensing devices, and in particular to an automatic feeding and dispensing device and method for anti-clogging granular ammonia nitrogen removal agent. Background Technology

[0002] In the paper production process, in order to solve the problems of high cost and online exceedance caused by high ammonia nitrogen in desulfurization return water, various methods are being used to make improvements in many aspects, including unclogging pipes to increase water volume, conducting new reagent experiments, changing the water supply method, and changing the reagent addition method. The traditional ammonia nitrogen removal agent is prepared as a liquid and added, but now it is directly added as dry powder, which has increased the removal rate by 25%. However, the dry powder addition method increases the labor intensity of workers, and the irritating dust blown on the body during the addition is harmful to the human body. In addition, manual addition cannot be continuous and uniform, which is not conducive to the conservation of reagents and easily leads to waste of reagents. At the same time, it cannot guarantee the stability of the system. Summary of the Invention

[0003] In view of the shortcomings of the prior art, the purpose of this invention is to provide an automatic feeding and dosing device and method for anti-clogging granular ammonia nitrogen removal agent. The automatic feeding and dosing device and method aim to solve the technical problems of high labor intensity for workers, harmful dust to human health, inability to guarantee the continuity and uniformity of dosing, and lack of efficiency in saving agents under the prior art.

[0004] The technical solution of this invention is as follows:

[0005] An automatic feeding and dosing device for anti-clogging granular ammonia nitrogen removal agent includes a support column; it also includes a hopper, a lifting control device, a guide assembly, an outer dust cover, a rotation control assembly, a sealing cover, a limit seat, a screen, a flexible impact assembly, a power unit, a spray pipe, nozzles, and a discharge adjustment assembly; the hopper is fixedly connected to the upper end of the support column; the lifting control device and the guide assembly are installed sequentially from the inside to the outside at both ends of the hopper; an outer dust cover that fits onto the outside of the hopper and can move vertically is installed inside the lifting control device and the guide assembly; a rotation control assembly is installed on the upper side of both ends of the outer dust cover; the upper end of the rotation control assembly rotates... The hopper is equipped with a sealing cover plate for shielding the outer dust cover; a limiting seat is fixedly connected inside the hopper; a detachable screen is installed on the upper end of the limiting seat; a flexible striking component that moves vertically is installed inside the hopper; power devices for controlling the lifting and lowering of the flexible striking component are installed at both ends of the hopper; a spray pipe is installed on the outside of the support column; nozzles that are evenly distributed are fixedly connected to the inside of the spray pipe; a discharge adjustment component is installed at the lower end of the hopper; the flexible striking component includes two connecting seats; a U-shaped bracket is inserted into the connecting seat and the other connecting seat; a flexible striking block for striking the screen is fixedly connected to the upper end of the U-shaped bracket; rollers are rotatably connected to the lower ends of both sides of the U-shaped bracket.

[0006] Preferably, the lifting control device includes a vertical mounting base; a ball screw is rotatably connected inside the vertical mounting base; a screw pair fixedly connected to the outer dust cover is installed on the outside of the ball screw; a baffle is fixedly connected to the inside of the vertical mounting base; a connecting block fixedly connected to the hopper is installed on the inside of the baffle. The screw pair converts the rotary motion of the ball screw into linear motion. Therefore, when the ball screw rotates, the screw pair drives the outer dust cover to move up and down, which serves to suppress dust during material feeding.

[0007] Preferably, a first motor is installed at the upper bottom of the vertical mounting base; a drive gear is installed on the outside of the output shaft of the first motor; a driven gear is installed on the outside of the ball screw and meshes with the drive gear. By utilizing the meshing of the drive gear and the driven gear, the power of the first motor is transmitted to the ball screw, driving the ball screw to rotate.

[0008] Preferably, the guiding assembly includes a guide frame; a guide column is fixedly connected inside the guide frame; a guide slider is slidably connected to the outside of the guide column and fixedly connected to the outer dust cover; the lower rear end of the guide frame is fixedly connected to the hopper, and as the outer dust cover is raised or lowered, the guide slider slides outside the guide column to limit the trajectory of the outer dust cover, prevent the outer dust cover from deviating, and improve the stability of the outer dust cover.

[0009] Preferably, the rotation control assembly includes a first mounting plate and a second mounting plate; a connecting column is rotatably connected between the first mounting plate and the second mounting plate; and fixed blocks are fixedly connected at equal intervals and fixedly connected to the sealing cover plate at the upper end of the connecting column. When the connecting column rotates, it drives the sealing cover plate to rotate, thereby realizing the opening and closing of the silo, ensuring the sealing of the silo, and preventing the ammonia nitrogen removal agent in the silo from getting damp.

[0010] Preferably, a second motor is installed on the left end of the second mounting plate; a small gear is installed on the outside of the output shaft of the second motor; a large gear is installed on the outside of the connecting column and meshes with the small gear. By utilizing the meshing of the large gear and the small gear, the power of the second motor is transmitted to the connecting column after the second motor is turned on, driving the connecting column to rotate.

[0011] Preferably, the power unit includes a third mounting plate; a third motor is fixedly connected to the upper end of the third mounting plate; the output shaft of the third motor is equipped with a connecting shaft extending into the hopper; a cam is installed at the end of the connecting shaft; the hopper is fixedly connected to the third mounting plate, and the unique structure of the cam drives the U-shaped insert to move vertically, so the flexible striking block at the upper end of the U-shaped insert can intermittently strike the screen, thereby preventing the screen from clogging.

[0012] Preferably, the discharge adjustment assembly includes an adjustment cylinder; the adjustment cylinder is fixedly connected to the rear end of the hopper; two adjustment cylinders are symmetrically arranged about the left and right sides of the hopper; a connecting plate is fixedly connected to the retractable end of the rear side of the adjustment cylinder; a discharge plate is fixedly connected to the lower end of the connecting plate and the other connecting plate, and the opening width of the discharge plate is controlled by adjusting the extension length of the cylinder, thereby adjusting the dosage.

[0013] The feeding method of the automatic feeding device for anti-clogging granular ammonia nitrogen removal agent includes the automatic feeding device for anti-clogging granular ammonia nitrogen removal agent as described above, and the steps are as follows:

[0014] Step 1: Install the hopper in a suitable position using the support column. Connect the inlet end of the spray pipe to the external water pipe. Start the second motor on the left end of the second mounting plate. The second motor rotates forward and drives the pinion to rotate. Since the pinion and the large gear mesh, the large gear rotates and drives the connecting column inside the first and second mounting plates to rotate. The fixing block at the upper end of the connecting column rotates, which drives the sealing cover to rotate, thereby opening the hopper.

[0015] Step 2: Turn on the first motor inside the vertical mounting base. The first motor rotates forward. Under the action of the driving gear and the driven gear, the power of the first motor is transmitted to the ball screw, driving the ball screw to rotate. The screw pair on the outside of the ball screw converts the rotary motion into linear motion, causing the outer dust cover to rise. At the same time, the guide slider connected to the outer dust cover moves along the direction of the guide column.

[0016] Step 3: Move the grab bucket to the inside of the outer dust cover using a crane. The grab bucket opens, and the ammonia nitrogen removal agent is fed into the hopper under gravity. The screen at the upper end of the limit seat screens the ammonia nitrogen removal agent. After the hopper is full, the first motor reverses, and the outer dust cover descends to its original position. The upper end of the outer dust cover is flush with the upper end of the hopper. The second motor reverses, and the sealing cover returns to its original position, covering the opening at the upper end of the hopper.

[0017] Step 4: Adjust the cylinder to push the connecting plate and the discharge plate to move, thereby adjusting the feeding amount and realizing the addition of ammonia nitrogen removal agent. At the same time, water is supplied to the spray pipe, and the water is sprayed out through the nozzle to reduce the dust dispersion during feeding.

[0018] Step 5: The third motor on the upper part of the third mounting plate starts, driving the connecting shaft and cam to rotate. As the cam rotates, the height of the roller changes, the U-shaped bracket moves up and down in the connecting seat, and the flexible striking block intermittently strikes the screen to prevent the screen from clogging.

[0019] The beneficial effects of this invention are:

[0020] 1. An automatic feeding system for ammonia nitrogen removal agent is used, and the dosage can be adjusted as needed. In a preferred embodiment, a flexible striking block is used to intermittently strike the screen to prevent screen blockage and ensure the continuity and uniformity of ammonia nitrogen removal agent feeding. While ensuring efficacy, the amount of ammonia nitrogen removal agent used is saved, reducing the labor intensity of workers. In addition, a spraying mechanism is set up to effectively suppress dust dispersion and reduce the harm of irritating dust to the human body, making it safer.

[0021] 2. A crane is used to load the ammonia nitrogen removal agent into the silo, reducing the frequency of feeding. The opening width of the discharge plate is adjustable, allowing for adjustments to the dosage as needed. This ensures the continuity and uniformity of ammonia nitrogen removal agent feeding, saving on the amount of ammonia nitrogen removal agent used while maintaining the ammonia nitrogen removal effect, thus reducing production costs. The elimination of manual handling reduces the labor intensity of workers, and the use of spray pipes suppresses dust, reducing dust in the working environment and preventing harm to workers, effectively protecting their health. Attached Figure Description

[0022] Figure 1 This is a first three-dimensional structural schematic diagram of the automatic feeding and dosing device for anti-clogging granular ammonia nitrogen removal agent of the present invention;

[0023] Figure 2 This is a three-dimensional cross-sectional view of the automatic feeding and dosing device for anti-clogging granular ammonia nitrogen removal agent of the present invention;

[0024] Figure 3 This is a second three-dimensional structural schematic diagram of the automatic feeding and dosing device for anti-clogging granular ammonia nitrogen removal agent of the present invention;

[0025] Figure 4 This is a three-dimensional structural diagram of the guide component in the automatic feeding and dosing device for anti-clogging granular ammonia nitrogen removal agent of the present invention;

[0026] Figure 5 This is a three-dimensional structural diagram of the rotation control component in the automatic feeding and dosing device for anti-clogging granular ammonia nitrogen removal agent of the present invention;

[0027] Figure 6 This is a three-dimensional structural diagram of the flexible striking component and power device in the automatic feeding and dosing device for anti-clogging granular ammonia nitrogen removal agent of the present invention;

[0028] Figure 7 This is a three-dimensional structural diagram of the discharge adjustment component in the automatic feeding and dosing device for anti-clogging granular ammonia nitrogen removal agent of the present invention.

[0029] In the diagram: 1. Support column; 2. Hopper; 3. Lifting control device; 31. Vertical mounting base; 32. Ball screw; 33. Screw pair; 34. Baffle; 35. Connecting block; 36. First motor; 37. Drive gear; 38. Driven gear; 4. Guide assembly; 41. Guide frame; 42. Guide column; 43. Guide slider; 5. Outer dust cover; 6. Rotation control assembly; 61. First mounting plate; 62. Second mounting plate; 63. Connecting column; 64. Fixing block; 65. Second motor 66. Small gear; 67. Large gear; 7. Sealing cover; 8. Limit seat; 9. Screen; 10. Flexible striking assembly; 101. Connecting seat; 102. U-shaped insert; 103. Flexible striking block; 104. Roller; 11. Power unit; 111. Third mounting plate; 112. Third motor; 113. Connecting shaft; 114. Cam; 12. Spray pipe; 13. Nozzle; 14. Discharge adjustment assembly; 141. Adjusting cylinder; 142. Connecting plate; 143. Discharge plate. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0031] Please see Figure 1-2 This invention provides an embodiment of an automatic feeding and dosing device for anti-clogging granular ammonia nitrogen removal agent, comprising a support column 1; and further comprising a hopper 2, a lifting control device 3, a guide assembly 4, an outer dust cover 5, a rotation control assembly 6, a sealing cover 7, a limit seat 8, a screen 9, a flexible impact assembly 10, a power unit 11, a spray pipe 12, a nozzle 13, and a discharge adjustment assembly 14; the upper end of the support column 1 is fixedly connected to the hopper 2; the lifting control device 3 and the guide assembly 4 are installed sequentially from the inside to the outside at both ends of the hopper 2; and a sleeve is installed on the inner side of the lifting control device 3 and the guide assembly 4, which is fitted onto the outer side of the hopper 2. An outer dust cover 5 that can move vertically; a rotation control component 6 is installed on the upper side of both the front and rear ends of the outer dust cover 5; a sealing cover plate 7 for covering the outer dust cover 5 is rotatably connected to the upper end of the rotation control component 6; a limit seat 8 is fixedly connected inside the hopper 2; a detachable screen 9 is installed on the upper end of the limit seat 8; a flexible striking component 10 that moves vertically is installed inside the hopper 2; a power device 11 for controlling the lifting and lowering of the flexible striking component 10 is installed on both the left and right ends of the hopper 2; a spray pipe 12 is installed on the outside of the support column 1; nozzles 13 that are evenly distributed are fixedly connected to the inside of the spray pipe 12; and a discharge adjustment component 14 is installed at the lower end of the hopper 2.

[0032] Please see Figure 3-5In this embodiment, the lifting control device 3 includes a vertical mounting base 31; a ball screw 32 is rotatably connected inside the vertical mounting base 31; a screw pair 33 fixedly connected to the outer dust cover 5 is mounted on the outer side of the ball screw 32; a baffle 34 is fixedly connected to the inner side of the vertical mounting base 31; a connecting block 35 fixedly connected to the hopper 2 is mounted on the inner side of the baffle 34; a first motor 36 is mounted at the upper bottom of the vertical mounting base 31; a drive gear 37 is mounted on the outer side of the output shaft of the first motor 36; a driven gear 38 meshing with the drive gear 37 is mounted on the outer side of the ball screw 32; the guide assembly 4 includes a guide frame 41; a fixed... A guide post 42 is connected; a guide slider 43, which is fixedly connected to the outer dust cover 5, is slidably connected to the outside of the guide post 42; the lower rear end of the guide frame 41 is fixedly connected to the hopper 2; the rotation control component 6 includes a first mounting plate 61 and a second mounting plate 62; a connecting post 63 is rotatably connected between the first mounting plate 61 and the second mounting plate 62; a fixing block 64, which is equidistantly distributed and fixedly connected to the sealing cover plate 7, is fixedly connected to the upper end of the connecting post 63; a second motor 65 is installed on the left end of the second mounting plate 62; a small gear 66 is installed on the outside of the output shaft of the second motor 65; a large gear 67, which meshes with the small gear 66, is installed on the outside of the connecting post 63.

[0033] Please see Figure 6-7 In this embodiment, the flexible striking component 10 includes two horizontal connecting seats 101; a U-shaped bracket 102 is inserted into the connecting seat 101 and the other horizontal connecting seat 101; a flexible striking block 103 for striking the screen 9 is fixedly connected to the upper end of the U-shaped bracket 102; rollers 104 are rotatably connected to the lower ends of both sides of the U-shaped bracket 102; the power unit 11 includes a third mounting plate 111; a third motor 112 is fixedly connected to the upper end of the third mounting plate 111; the output shaft of the third motor 112 is mounted on... The hopper 2 is equipped with a connecting shaft 113 extending into the hopper 2; a cam 114 is installed at the end of the connecting shaft 113; the hopper 2 is fixedly connected to the third mounting plate 111; the discharge adjustment assembly 14 includes an adjustment cylinder 141; the adjustment cylinder 141 is fixedly connected to the rear end of the hopper 2; two adjustment cylinders 141 are symmetrically arranged on the left and right sides of the hopper 2; a connecting plate 142 is fixedly connected to the retractable end of the rear side of the adjustment cylinder 141; a discharge plate 143 is fixedly connected to the lower end of the connecting plate 142 and the other connecting plate 142.

[0034] The feeding method of the automatic feeding device for anti-clogging granular ammonia nitrogen removal agent includes the automatic feeding device for anti-clogging granular ammonia nitrogen removal agent as described above, and the steps are as follows:

[0035] Step 1: Install the hopper 2 in a suitable position using the support column 1. Connect the inlet end of the spray pipe 12 to the external water pipe. Start the second motor 65 on the left end of the second mounting plate 62. The second motor 65 rotates forward and drives the pinion 66 to rotate. Since the pinion 66 and the large gear 67 mesh, the large gear 67 rotates and drives the connecting column 63 in the first mounting plate 61 and the second mounting plate 62 to rotate. The fixing block 64 at the upper end of the connecting column 63 rotates, which drives the sealing cover plate 7 to rotate, thereby opening the hopper 2.

[0036] Step 2: Open the first motor 36 inside the vertical mounting base 31. The first motor 36 rotates forward. Under the action of the driving gear 37 and the driven gear 38, the power of the first motor 36 is transmitted to the ball screw 32, driving the ball screw 32 to rotate. The screw pair 33 on the outside of the ball screw 32 converts the rotary motion into linear motion, causing the outer dust cover 5 to rise. At the same time, the guide slider 43 connected to the outer dust cover 5 moves along the direction of the guide column 42.

[0037] Step 3: Move the grab bucket to the inside of the outer dust cover 5 using a crane. The grab bucket opens, and the ammonia nitrogen removal agent is fed into the hopper 2 under gravity. The screen 9 at the upper end of the limit seat 8 screens the ammonia nitrogen removal agent. After the hopper 2 is full, the first motor 36 reverses, and the outer dust cover 5 descends to its original position. The upper end of the outer dust cover 5 is flush with the upper end of the hopper 2. The second motor 65 reverses, and the sealing cover 7 returns to its original position, covering the opening at the upper end of the hopper 2.

[0038] Step 4: Adjust the cylinder 141 to push the connecting plate 142 and the discharge plate 143 to move, thereby adjusting the feeding amount and realizing the addition of ammonia nitrogen removal agent. At the same time, water is supplied to the spray pipe 12, and the water is sprayed outward through the nozzle 13 to reduce the dust dispersion during feeding.

[0039] Step 5: The third motor 112 at the upper end of the third mounting plate 111 starts, driving the connecting shaft 113 and cam 114 to rotate. As the cam 114 rotates, the height of the roller 104 changes, the U-shaped bracket 102 moves up and down in the horizontal connecting seat 101, and the flexible striking block 103 intermittently strikes the screen 9 to prevent the screen 9 from clogging.

[0040] Through the above steps, a crane is used for automatic feeding of ammonia nitrogen removal agent, and the dosage can be adjusted according to needs to ensure the continuity and uniformity of ammonia nitrogen removal agent feeding. While ensuring efficacy, it saves the amount of ammonia nitrogen removal agent used, reduces the labor intensity of workers, and is also equipped with a spraying mechanism to effectively suppress dust dispersion and reduce the harm of irritating dust to the human body, making it safer.

[0041] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. An automatic feeding and dosing device for anti-clogging granular ammonia nitrogen removal agent, comprising a support column; characterized in that: It also includes a hopper, lifting control device, guide assembly, outer dust cover, rotation control assembly, sealing cover, limit seat, screen, flexible impact assembly, power unit, spray pipe, nozzle, and discharge adjustment assembly; the hopper is fixedly connected to the upper end of the support column; the lifting control device and symmetrically distributed guide assembly are installed sequentially from the inside to the outside at both ends of the hopper; an outer dust cover that fits onto the outside of the hopper and can move vertically is installed inside the lifting control device and guide assembly; a rotation control assembly is installed on the upper side of both ends of the outer dust cover; a sealing cover for shielding the outer dust cover is rotatably connected to the upper end of the rotation control assembly. The hopper includes a cover plate; a limiting seat fixedly connected inside; a detachable screen installed on the upper end of the limiting seat; a flexible striking component that moves vertically inside the hopper; power devices for controlling the lifting and lowering of the flexible striking component installed at both ends of the hopper; a spray pipe installed on the outside of the support column; nozzles evenly distributed fixedly connected to the inside of the spray pipe; a discharge adjustment component installed at the lower end of the hopper; the flexible striking component includes two connecting seats; a U-shaped bracket inserted into one of the connecting seats and the other connecting seat; a flexible striking block for striking the screen fixedly connected to the upper end of the U-shaped bracket; and rollers rotatably connected to the lower ends of both sides of the U-shaped bracket.

2. The automatic feeding and dosing device for anti-clogging granular ammonia nitrogen removal agent according to claim 1, characterized in that: The lifting control device includes a vertical mounting base; a ball screw is rotatably connected inside the vertical mounting base; a screw pair fixedly connected to an outer dust cover is installed on the outside of the ball screw; a baffle is fixedly connected to the inside of the vertical mounting base; and a connecting block fixedly connected to the hopper is installed on the inside of the baffle.

3. The automatic feeding and dosing device for anti-clogging granular ammonia nitrogen removal agent according to claim 2, characterized in that: The first motor is installed at the top bottom of the vertical mounting base; the drive gear is installed on the outside of the output shaft of the first motor; and the driven gear, which meshes with the drive gear, is installed on the outside of the ball screw.

4. The automatic feeding and dosing device for anti-clogging granular ammonia nitrogen removal agent according to claim 1, characterized in that: The guiding assembly includes a guide frame; a guide column is fixedly connected inside the guide frame; a guide slider that is fixedly connected to an outer dust cover is slidably connected to the outside of the guide column; and the lower rear end of the guide frame is fixedly connected to the hopper.

5. The automatic feeding and dosing device for anti-clogging granular ammonia nitrogen removal agent according to claim 1, characterized in that: The rotation control assembly includes a first mounting plate and a second mounting plate; a connecting column is rotatably connected between the first mounting plate and the second mounting plate; and fixed blocks that are equidistantly distributed and fixedly connected to the sealing cover are fixedly connected to the upper end of the connecting column.

6. The automatic feeding and dosing device for anti-clogging granular ammonia nitrogen removal agent according to claim 5, characterized in that: The second motor is mounted on the left end of the second mounting plate; a small gear is mounted on the outside of the output shaft of the second motor; and a large gear that meshes with the small gear is mounted on the outside of the connecting column.

7. The automatic feeding and dosing device for anti-clogging granular ammonia nitrogen removal agent according to claim 1, characterized in that: The power unit includes a third mounting plate; a third motor is fixedly connected to the upper end of the third mounting plate; the output shaft of the third motor is equipped with a connecting shaft extending into the hopper; a cam is installed at the end of the connecting shaft; the hopper is fixedly connected to the third mounting plate.

8. The automatic feeding and dosing device for anti-clogging granular ammonia nitrogen removal agent according to claim 1, characterized in that: The discharge adjustment assembly includes an adjustment cylinder; the adjustment cylinder is fixedly connected to the rear end of the hopper; two adjustment cylinders are symmetrically arranged on the left and right sides of the hopper; a connecting plate is fixedly connected to the retractable end of the rear side of the adjustment cylinder; and a discharge plate is fixedly connected to the lower end of the connecting plate and the other connecting plate.

9. The feeding method of the automatic feeding device for anti-clogging granular ammonia nitrogen removal agent, characterized in that... The automatic feeding and dosing device for anti-clogging granular ammonia nitrogen removal agent according to claims 1-8 includes the following steps: Step 1: Install the hopper in a suitable position using the support column. Connect the inlet end of the spray pipe to the external water pipe. Start the second motor on the left end of the second mounting plate. The second motor rotates forward and drives the pinion to rotate. Since the pinion and the large gear mesh, the large gear rotates and drives the connecting column inside the first and second mounting plates to rotate. The fixing block at the upper end of the connecting column rotates, which drives the sealing cover to rotate, thereby opening the hopper. Step 2: Turn on the first motor inside the vertical mounting base. The first motor rotates forward. Under the action of the driving gear and the driven gear, the power of the first motor is transmitted to the ball screw, driving the ball screw to rotate. The screw pair on the outside of the ball screw converts the rotary motion into linear motion, causing the outer dust cover to rise. At the same time, the guide slider connected to the outer dust cover moves along the direction of the guide column. Step 3: Move the grab bucket to the inside of the outer dust cover using a crane. The grab bucket opens, and the ammonia nitrogen removal agent is fed into the hopper under gravity. The screen at the upper end of the limit seat screens the ammonia nitrogen removal agent. After the hopper is full, the first motor reverses, and the outer dust cover descends to its original position. The upper end of the outer dust cover is flush with the upper end of the hopper. The second motor reverses, and the sealing cover returns to its original position, covering the opening at the upper end of the hopper. Step 4: Adjust the cylinder to push the connecting plate and the discharge plate to move, thereby adjusting the feeding amount and realizing the addition of ammonia nitrogen removal agent. At the same time, water is supplied to the spray pipe, and the water is sprayed out through the nozzle to reduce the dust dispersion during feeding. Step 5: The third motor on the upper part of the third mounting plate starts, driving the connecting shaft and cam to rotate. As the cam rotates, the height of the roller changes, the U-shaped bracket moves up and down in the connecting seat, and the flexible striking block intermittently strikes the screen to prevent the screen from clogging.

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