Waste gas treatment device for rare earth permanent magnet material sintering equipment

Abstract

The invention relates to the technical field of waste gas treatment devices, in particular to a waste gas treatment device for rare earth permanent magnet material sintering equipment. Comprising a support frame; the liquid storage tank is connected to the supporting frame, and a round hole is formed in the middle of the bottom of the liquid storage tank; the washing tower is connected to the top of the liquid storage tank; the controller is mounted on the outer wall of the washing tower; the conical plate is connected to the inner wall of the liquid storage tank; the connecting pipe is connected to the bottom of the conical plate and keeps communicating; the hollow frame is connected to the bottom of the round hole; and the centrifugal pump is arranged on the tower body of the washing tower. Through cooperation of the servo motor, the rotating block and the moving assembly, the two nozzles can be controlled to alternately extract washing liquid and spray out the washing liquid to treat waste gas, the nozzles which do not conduct waste gas treatment can automatically extract clean water, and the interiors of a liquid extraction pipe, a liquid outlet pipe, a hose, a bent pipe and the nozzles are automatically cleaned; by means of the design, continuous and efficient operation of waste gas treatment can be guaranteed, and the requirement for manual maintenance is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas treatment devices, and in particular to a waste gas treatment device for rare earth permanent magnet material sintering equipment. Background Art

[0002] With the development of modern industry, rare earth permanent magnet materials have been widely used as key raw materials in the fields of electronics, machinery, automobiles, etc. The manufacturing process of these materials usually includes a sintering step, and the sintering process will produce waste gas containing various harmful substances. In order to reduce the impact on the environment, these waste gases need to be effectively treated. At present, the most common practice is to use a wet scrubber to purify the waste gas. This treatment method mainly relies on a water pump connected to an external circulating water tank to spray the waste gas, and the washing liquid is in contact with the waste gas to achieve the purpose of purification.

[0003] However, in actual applications, since the exhaust gas contains a large number of fine particles, these particles will be mixed in the washing liquid after spraying treatment. Over time, these particles will gradually adhere and accumulate inside the water pipes and nozzles, resulting in a decrease in the operating efficiency of the equipment. Considering the use of filter filtration to remove these particles, although it is theoretically feasible, the size of the particles is tiny. In order to effectively intercept these impurities, a filter with very fine pores must be used. This high-density filter will greatly hinder the circulation of the washing liquid, reduce the water flow rate, and thus affect the contact efficiency between the exhaust gas and the washing liquid, and ultimately weaken the exhaust gas treatment effect. Therefore, this method is not suitable for existing exhaust gas treatment systems. Factories usually can only take the approach of regular shutdown maintenance to remove the deposits in the water pipes and nozzles, which not only increases the complexity of operations and labor costs, but also the long shutdown time each time, which will affect the overall production progress and exhaust gas treatment efficiency. Summary of the invention

[0004] In view of this, the present invention provides a waste gas treatment device for rare earth permanent magnet material sintering equipment, which can overcome the shortcomings of the existing wet scrubber that it needs to be shut down for maintenance regularly during use, which not only increases the complexity of operation and labor costs, but also each shutdown affects the production progress and waste gas treatment efficiency.

[0005] The technical implementation scheme of the present invention is: an exhaust gas treatment device for rare earth permanent magnet material sintering equipment, comprising: a support frame; a liquid storage tank connected to the support frame, and a circular hole is opened in the middle of the bottom of the liquid storage tank; a washing tower connected to the top of the liquid storage tank; a controller installed on the outer wall of the washing tower; a conical plate connected to the inner wall of the liquid storage tank; a connecting pipe connected to the bottom of the conical plate and maintained in communication; a hollow frame connected to the bottom of the circular hole; a centrifugal pump installed on the tower body of the washing tower; a liquid extraction pipe, the two ends of which are respectively connected to the bottom of the hollow frame and the liquid inlet of the centrifugal pump; a liquid outlet pipe, the two ends of which are respectively connected to the bottom of the washing tower The tower body and the liquid outlet of the centrifugal pump; a hose connected to the upper end of the liquid outlet pipe; a bend connected to the end of the hose; a nozzle installed at the end of the bend; a mounting frame connected to the bottom of the hollow frame; a servo motor installed at the bottom of the mounting frame; a rotating block connected to the output shaft of the servo motor, and a channel connected to the lower end of the connecting pipe is opened on the rotating block; a liquid replacement component is arranged on the hollow frame and is used to replace the liquid in the liquid storage tank; a moving component is arranged in the tower body of the washing tower and is used to control the movement of the nozzle; a recovery component is arranged in the tower body of the washing tower and is used to recover clean water.

[0006] In a preferred embodiment of the present invention, the liquid exchange component includes: a drain pipe, connected to the bottom of the hollow frame and kept connected; an electric control valve, installed on the drain pipe; a liquid inlet pipe, which is arranged in two pieces, both of which are connected to the liquid storage tank and kept connected, and the two liquid inlet pipes are respectively located on the upper and lower sides of the conical plate.

[0007] In a preferred embodiment of the present invention, the moving component includes: a connecting block connected to the top of the curved pipe; a connecting frame connected to the inner wall of the tower body of the washing tower; a fixing ring connected to the bottom of the connecting frame, and the fixing ring is sleeved on the outside of the hose; a first drive motor is installed on the top of the connecting frame; a rotating disk connected to the output shaft of the first drive motor, and the rotating disk is located below the connecting frame, and a storage groove is provided on the rotating disk; an electric push rod is installed inside the rotating disk; a moving block is connected to the telescopic rod of the electric push rod, and an arc-shaped slide groove is provided on the moving block, and the connecting block can slide in the arc-shaped slide groove.

[0008] In a preferred embodiment of the present invention, the recovery component includes: a reflux pipe, whose two ends are respectively connected to the liquid storage tank and the tower body of the washing tower and remain connected; a collecting frame, which is connected to the upper end of the reflux pipe and remains connected, and the collecting frame is located in the tower body of the washing tower.

[0009] In a preferred embodiment of the present invention, it also includes: an L-shaped baffle connected to the nozzle, and a notch is opened on the collecting frame, and the L-shaped baffle blocks the notch.

[0010] In a preferred embodiment of the present invention, it also includes: a connecting plate connected to the outer wall of the collection frame; a second drive motor installed on the top of the connecting plate; a driving gear connected to the output shaft of the second drive motor; a rotating cylinder brush rotatably connected to the inside of the collection frame; a driven ring gear connected to the outer wall of the rotating cylinder brush, and the driven ring gear is meshed with the driving gear.

[0011] In a preferred embodiment of the present invention, it also includes: a third drive motor, which is installed at the bottom of the liquid storage tank at circumferential intervals; a stirring rod, which is rotatably connected to the inside of the liquid storage tank at circumferential intervals, and the rotating shaft of the stirring rod is connected to the output shaft of the third drive motor.

[0012] In a preferred embodiment of the present invention, it also includes: a magnet connected to the inside of the moving block, and the magnet can adsorb and fix the connecting block through magnetic force.

[0013] Compared with the prior art, the present invention has the following advantages: 1. The present invention can control the two nozzles to alternately extract washing liquid and spray it out to treat the exhaust gas through the cooperation of the servo motor, the rotating block and the moving assembly, while the nozzle that does not treat the exhaust gas can automatically extract clean water and automatically clean the extraction pipe, the liquid outlet pipe, the hose, the bent pipe and the inside of the nozzle. This design can ensure the continuous and efficient operation of the exhaust gas treatment and reduce the need for manual maintenance.

[0014] 2. The rotating drum brush of the present invention is used in conjunction with clean water to scrub the bottom of the nozzle and its blind spots. At the same time, the stirring component can stir the clean water in the liquid storage tank so that the grinding particles in the clean water can be evenly distributed in the clean water, thereby improving the cleaning effect. At the same time, through the cooperation of the liquid storage tank and the recovery component, the washing liquid and clean water can be recycled. This closed-loop design can reduce resource consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0016] Figure 2 It is a schematic diagram of the installation of the conical plate, the connecting pipe and the hollow frame of the present invention.

[0017] Figure 3 The figure is a schematic diagram of the installation of the centrifugal pump, the liquid suction pipe, the liquid discharge pipe, the hose, the elbow and the nozzle of the present invention.

[0018] Figure 4 The figure is a schematic diagram of the installation of the mounting frame, servo motor, rotating block, drain pipe and electric control valve of the present invention.

[0019] Figure 5 It is a cross-sectional view of the rotating block of the present invention.

[0020] Figure 6 It is a schematic diagram of the installation of the connecting block of the present invention.

[0021] Figure 7 It is a schematic diagram of the installation of the mobile assembly of the present invention.

[0022] Figure 8 It is a schematic diagram of the specific structure of the mobile component of the present invention.

[0023] Fig. 9 It is a schematic diagram of the installation of the reflux pipe and the collection frame of the present invention.

[0024] Fig.10 It is a cross-sectional view of the collecting frame of the present invention.

[0025] Fig.11 The figure is a schematic diagram of the installation of the L-shaped baffle of the present invention.

[0026] Fig.12 The figure is a schematic diagram of the installation of the driving gear, the rotating cylinder brush and the driven gear ring of the present invention.

[0027] Fig.13 This is a schematic diagram of the installation of the third driving motor and the stirring rod of the present invention.

[0028] Fig.14 It is a schematic diagram of the installation of the magnet of the present invention.

[0029] Among them, the above drawings include the following figure marks: 1-support frame, 2-liquid storage tank, 201-circular hole, 3-washing tower, 301-tower body, 302-inlet pipe, 303-outlet pipe, 304-filling layer, 305-vertical pipe, 4-controller, 5-conical plate, 6-connecting pipe, 7-hollow frame, 8-centrifugal pump, 9-liquid suction pipe, 10-liquid outlet pipe, 11-hose, 1101-elbow pipe, 12-nozzle, 13-mounting frame, 14-servo motor, 15-rotating block, 1501-channel, 16-drain pipe , 17-electrically controlled valve, 18-liquid inlet pipe, 19-connecting block, 20-connecting frame, 21-fixed ring, 22-first drive motor, 23-rotating disk, 2301-storage slot, 24-electric push rod, 25-moving block, 2501-arc slide, 26-reflux pipe, 27-collection frame, 28-notch, 29-L-shaped baffle, 30-connecting plate, 31-second drive motor, 32-driving gear, 33-rotating cylinder brush, 34-driven gear ring, 35-third drive motor, 36-stirring rod, 37-magnet. DETAILED DESCRIPTION

[0030] First of all, it should be pointed out that in the different described embodiments, the same parts are provided with the same reference numerals or the same component names, wherein the disclosure contained in the entire description can be transferred to the same parts with the same reference numerals or the same component names. Selected positional descriptions in the description, such as top, bottom, lateral, etc., also refer to the directly described and shown figures and are transferred to the new positions in the case of a change in position.

[0031] Embodiment: A waste gas treatment device for rare earth permanent magnet material sintering equipment, such as Figure 1-Figure 10 As shown, it includes a support frame 1, a liquid storage tank 2, a washing tower 3, a controller 4, a conical plate 5, a connecting pipe 6, a hollow frame 7, a centrifugal pump 8, a liquid extraction pipe 9, a liquid outlet pipe 10, a hose 11, a bend pipe 1101, a nozzle 12, a mounting frame 13, a servo motor 14, a rotating block 15, a liquid replacement component, a moving component and a recovery component. The upper part of the support frame 1 is connected to the liquid storage tank 2, and a circular hole 201 is opened in the middle of the bottom of the liquid storage tank 2, as shown in FIG. Figure 2As shown, the washing tower 3 includes a tower body 301, an air inlet pipe 302, an air outlet pipe 303, a packing layer 304 and a vertical pipe 305. The top of the liquid storage tank 2 is connected to the tower body 301, the lower middle of the tower body 301 is connected to the air inlet pipe 302 and maintained in communication, the top of the tower body 301 is connected to the air outlet pipe 303 and maintained in communication, a packing layer 304 is arranged in the middle of the tower body 301, the lower part of the tower body 301 is connected to the vertical pipe 305 at circumferential intervals, the bottom of the vertical pipe 305 is connected to the top of the liquid storage tank 2 and maintained in communication, a controller 4 is installed in the middle of the front side of the washing tower 3, and the upper part of the inner wall of the liquid storage tank 2 is connected to the conical plate 5, which can divide the inside of the liquid storage tank 2 into two storage spaces. The scrubbing liquid for treating the exhaust gas can be stored above the conical plate 5, and the clean water for cleaning the liquid extraction pipe 9, the liquid outlet pipe 10, the hose 11, the elbow 1101 and the nozzle 12 can be stored below the conical plate 5. The clean water contains abrasive particles of metal material, and the diameter of the abrasive particles is 1 mm. The inner wall of the circular hole 201 is connected with a connecting pipe 6, and the upper end of the connecting pipe 6 is connected to the bottom of the conical plate 5 and maintained in communication. A hollow frame 7 is connected to the middle of the bottom of the liquid storage tank 2, and the hollow frame 7 is located directly below the circular hole 201, and the top of the hollow frame 7 is an open design and maintained in communication with the circular hole 201. Centrifugal pumps 8 are installed on the lower right side and the lower rear side of the tower body 301, and the centrifugal pump 8 can process the liquid containing A small amount of liquid with fine particles (usually less than 5 mm), the liquid inlets of the two centrifugal pumps 8 are connected to the suction pipes 9 and maintained in communication, the lower ends of the two suction pipes 9 are connected to the bottom of the hollow frame 7 and maintained in communication, the liquid outlets of the two centrifugal pumps 8 are connected to the liquid outlet pipes 10 and maintained in communication, the upper ends of the two liquid outlet pipes 10 pass through the side of the tower body 301 and are located above the packing layer 304, the upper ends of the two liquid outlet pipes 10 are connected to the hoses 11 and maintained in communication, the ends of the two hoses 11 are connected to the elbows 1101 and maintained in communication, and the lower ends of the two elbows 1101 are installed with nozzles 12, which are solid conical nozzles that can spray the washing liquid downward to form a complete The hollow frame 7 has a whole cone shape to cover the top of the entire packing layer 304. The bottom of the hollow frame 7 is connected to a mounting frame 13, and a servo motor 14 is installed at the bottom of the mounting frame 13. The lower end of the connecting pipe 6 is rotatably connected to a rotating block 15, and the bottom of the rotating block 15 is connected to the output shaft of the servo motor 14. The bottom of the rotating block 15 contacts the bottom of the hollow frame 7. A channel 1501 is opened on the rotating block 15. The upper end of the channel 1501 is connected to the lower end of the connecting pipe 6, and the lower end of the channel 1501 can be connected to the ends of the two liquid extraction tubes 9 through rotation. The liquid replacement component is used to replace the liquid in the liquid storage tank 2, the moving component is used to control the movement of the nozzle 12, and the recovery component is used to recover clean water.

[0032] like Figure 1 and Figure 4As shown, the liquid exchange component includes a drain pipe 16, an electric control valve 17 and a liquid inlet pipe 18. The drain pipe 16 is connected to the left side of the bottom of the hollow frame 7 and remains connected, and the electric control valve 17 is installed on the drain pipe 16. The front right part and the rear right part of the liquid storage tank 2 are connected to the liquid inlet pipe 18 and remain connected, and the two liquid inlet pipes 18 are respectively located on the upper and lower sides of the conical plate 5, so that the liquid can be replenished for the two storage spaces inside the liquid storage tank 2 respectively.

[0033] like Figure 6-Figure 8 As shown, the moving assembly includes a connecting block 19, a connecting frame 20, a fixing ring 21, a first driving motor 22, a rotating disk 23, an electric push rod 24 and a moving block 25. The tops of the two curved pipes 1101 are connected to the connecting block 19, the upper inner wall of the tower body 301 is connected to the connecting frame 20, the bottom right side and the bottom rear side of the connecting frame 20 are connected to the fixing ring 21, the fixing ring 21 corresponds to the hose 11 one by one, and the fixing ring 21 is sleeved on the outer side of the corresponding hose 11 and adapted to the curved pipe 1101, the top of the connecting frame 20 is installed with the first driving motor 22, the output shaft of the first driving motor 22 is connected with the rotating disk 23, and the rotating disk 23 is located below the connecting frame 20, as shown in FIG. Figure 8 As shown, an annular groove is provided at the bottom of the rotating disk 23, and a receiving groove 2301 is provided at the right part of the rotating disk 23. An electric push rod 24 is installed inside the rotating disk 23. A moving block 25 is connected to the telescopic rod of the electric push rod 24. The shape of the moving block 25 is adapted to the shape of the receiving groove 2301, and an arc-shaped slide groove 2501 is provided on the moving block 25. The connecting block 19 can slide in the arc-shaped slide groove 2501.

[0034] like Figure 9-11 As shown, the recovery assembly includes a reflux pipe 26, a collection frame 27 and an L-shaped baffle 29. Four reflux pipes 26 are connected to the liquid storage tank 2 at intervals in the circumferential direction. The lower end of the reflux pipe 26 is located below the conical plate 5. The upper ends of the four reflux pipes 26 are connected to the collection frame 27 and maintained in communication. The collection frame 27 is located inside the tower body 301. The shape of the collection frame 27 is annular, and the inner right part and the inner rear part of the collection frame 27 are both provided with notches 28. The two notches 28 correspond to the two nozzles 12 one by one, as shown in FIG. Fig.10 As shown, the height of the notch 28 is higher than the height of the bottom of the collecting frame 27 , and the water in the collecting frame 27 will not flow outward into the tower body 301 through the notch 28 . The outer walls of the two nozzles 12 are connected to L-shaped baffles 29 , which are used to block the notch 28 .

[0035] Initially, an appropriate amount of washing liquid is stored above the conical plate 5, and an appropriate amount of clean water is stored below the conical plate 5; the rotating block 15 blocks the lower end of the right side of the liquid extraction pipe 9 (such as Figure 4As shown in FIG. 1 ), the clean water will not enter the right side liquid extraction pipe 9, and the lower end of the channel 1501 in the rotating block 15 is connected to the lower end of the right side liquid extraction pipe 9; the connecting block 19 on the right side curved pipe 1101 is located in the arc chute 2501, that is, the nozzle 12 on the right side is located at the center of the rotating disk 23 (as shown in FIG. Figure 7 and Figure 8 The L-shaped baffle 29 on the rear side blocks the notch 28 on the rear side (as shown); Fig.10As shown); when it is necessary to treat the exhaust gas, firstly, the exhaust gas is introduced into the tower body 301 through the air inlet pipe 302, and the exhaust gas will rise in the tower body 301. At the same time, the centrifugal pump 8 can be controlled by the controller 4 to start working. The centrifugal pump 8 on the right side can extract the washing liquid through the right side suction pipe 9, the rotating block 15 and the connecting pipe 6, and can transport the washing liquid to the right side nozzle 12 through the right side liquid outlet pipe 10, the right side hose 11 and the right side elbow 1101, so that the right side nozzle 12 sprays the washing liquid downward, and the exhaust gas and the washing liquid will be fully contacted in the packing layer 304, so that the particulate matter, harmful gases or volatile organic compounds in the exhaust gas can be removed by the washing liquid. The purified air will be discharged through the exhaust pipe 303, and the washing liquid will flow downward to the liquid storage tank 2 (located above the conical plate 5) through the vertical pipe 305, so that the washing liquid can circulate Utilization; at the same time, the centrifugal pump 8 on the rear side can extract clean water through the rear side suction pipe 9 and the hollow frame 7, and transport the clean water to the nozzle 12 on the rear side through the rear side liquid outlet pipe 10, the rear side hose 11 and the rear side elbow 1101. The rear side nozzle 12 can spray the clean water downward, and the grinding particles in the clean water can remove the particles adhering to the rear side liquid outlet pipe 10, the rear side hose 11, the rear side elbow 1101 and the rear side nozzle 12, so as to achieve the purpose of automatic cleaning. At this time, the L-shaped baffle 29 on the rear side blocks the notch 28 on the rear side, so that the clean water sprayed from the rear side nozzle 12 will gather in the collecting frame 27, and will not splash into the inside of the tower body 301, that is, it will not affect the purification of the exhaust gas. The clean water in the collecting frame 27 will eventually flow downward to the liquid storage tank 2 (located below the conical plate 5) through the reflux pipe 26, so that the clean water can also be recycled;After using for a period of time, it is necessary to stop conveying exhaust gas into the tower body 301, and control the centrifugal pump 8 to stop working through the controller 4, and then control the servo motor 14 through the controller 4 to drive the rotating block 15 to rotate. Since the bottom of the rotating block 15 is in contact with the bottom of the hollow frame 7, during the rotation of the rotating block 15, the washing liquid in the connecting pipe 6 will not flow out through the channel 1501 and mix with the clean water. Then the rotating block 15 will block the lower end of the liquid extraction pipe 9 on the rear side, and the lower end of the channel 1501 in the rotating block 15 is connected to the lower end of the liquid extraction pipe 9 on the rear side, and then the electric push rod 24 is controlled by the controller 4 to drive the moving block 25 to move. The movable block 25 can drive the right connecting block 19 and the right curved pipe 1101 to move to the right, so that the right curved pipe 1101 is inserted into the right fixing ring 21, thereby fixing the right curved pipe 1101, and the right L-shaped baffle 29 will block the notch 28 on the right, and the arc-shaped slide groove 2501 will also match the annular groove at the bottom of the rotating disk 23, and then the controller 4 controls the first driving motor 22 to drive the rotating disk 23 to rotate a specified angle, and the rotating disk 23 can drive the electric push rod 24 and the movable block 25 to rotate a specified angle, so that the right connecting block 19 and the arc-shaped slide groove 2501 are in a state of being aligned with each other. 501 is disengaged, and then the arc-shaped slide groove 2501 is stuck on the connection block 19 at the rear side, and then the controller 4 controls the electric push rod 24 to drive the moving block 25 to move forward and disengage from the storage groove 2301. The moving block 25 can drive the connection block 19 at the rear side and the curved pipe 1101 at the rear side to move forward, so that the curved pipe 1101 at the rear side is separated from the fixed ring 21 at the rear side. At this time, the nozzle 12 at the rear side is located at the center position of the rotating disk 23, and then the above operation is repeated, and the washing liquid can be sprayed out through the nozzle 12 at the rear side to purify the exhaust gas, and the clean water can be used to clean the right liquid outlet pipe 10, the right hose 11, and the right curved pipe. The pipe 1101 and the nozzle 12 on the right are cleaned, so that the two nozzles 12 can work alternately, which can not only ensure the treatment effect and efficiency of the exhaust gas, but also achieve the purpose of automatic cleaning; when the washing liquid and clean water need to be replaced, the controller 4 first controls the electric control valve 17 to open, so that the clean water can be discharged out through the drain pipe 16, and then the controller 4 controls the rotating block 15 to rotate until the lower end of the channel 1501 is connected with the upper end of the drain pipe 16, so that the washing liquid can be discharged out through the drain pipe 16, and then the electric control valve 17 is closed, and finally the washing liquid and clean water are added to the liquid storage tank 2 through the liquid inlet pipe 18. ;

[0036] Since particles are easily accumulated at the bottom of the nozzle 12 and the lower edge around it, and are in the dead corner area of ​​the nozzle 12, the clean water sprayed by the nozzle 12 cannot clean properly, so a brush component is designed, such as Fig.12As shown, the brush moving assembly includes a connecting plate 30, a second driving motor 31, a driving gear 32, a rotating cylinder brush 33 and a driven gear ring 34. The upper left portion of the outer wall of the collection frame 27 is connected to the connecting plate 30, the second driving motor 31 is installed on the top of the connecting plate 30, the output shaft of the second driving motor 31 is connected to the driving gear 32, the inside of the collection frame 27 is rotatably connected to the rotating cylinder brush 33, the upper outer wall of the rotating cylinder brush 33 is connected to the driven gear ring 34, and the upper left portion of the outer wall of the collection frame 27 is provided with an opening (not shown in the figure). As shown in the figure), the driving gear 32 can mesh with the driven gear ring 34 through the above-mentioned opening; during the cleaning process of the liquid outlet pipe 10, the hose 11, the elbow 1101 and the nozzle 12, the controller 4 can control the second drive motor 31 to drive the driving gear 32 to rotate, and the driving gear 32 can drive the rotating cylinder brush 33 to rotate through the driven gear ring 34. The rotating cylinder brush 33 can brush and clean the lower part of the nozzle 12, and can remove particles adhering to the bottom of the nozzle 12 and the lower edge around it with clean water, thereby improving the cleaning effect.

[0037] Since the abrasive particles in the clean water will sink to the bottom when left standing, resulting in reduced cleaning effect, a stirring component is designed, such as Fig.13 As shown, the stirring assembly includes a third drive motor 35 and a stirring rod 36. Four third drive motors 35 are installed at intervals at the bottom of the liquid storage tank 2. Four stirring rods 36 are rotatably connected to the inside of the liquid storage tank 2 at intervals at the circumference. The stirring rods 36 correspond to the third drive motors 35 one by one, and the rotating shafts of the stirring rods 36 rotate through the bottom of the liquid storage tank 2 and are connected to the output shafts of the corresponding third drive motors 35. The stirring rods 36 are located below the conical plate 5 and will not affect the washing liquid above the conical plate 5. When it is necessary to clean the liquid outlet pipe 10, the hose 11, the elbow 1101 and the nozzle 12, firstly, the controller 4 is controlled The third driving motor 35 drives the stirring rod 36 to rotate, and the stirring rod 36 can stir the clean water in the liquid storage tank 2 so that the grinding particles in the clean water can be evenly distributed in the clean water, thereby improving the cleaning effect. After cleaning is completed, the third driving motor 35 is controlled by the controller 4 to stop working, so that the stirring rod 36 stops rotating. At this time, the grinding particles in the clean water will gradually sink to the bottom, and the centrifugal pump 8 continues to work, and can send the clean water into the liquid outlet pipe 10, the hose 11, the elbow 1101 and the nozzle 12 for secondary cleaning, thereby preventing the grinding particles in the clean water from remaining in the liquid outlet pipe 10, the hose 11, the elbow 1101 and the nozzle 12.

[0038] When the moving block 25 drives the connecting block 19 to move, the connecting block 19 may slide in the arc-shaped slide groove 2501 due to the bending of the hose 11, making it difficult for the elbow 1101 to be inserted into the fixed ring 21. Therefore, the magnet 37 is designed. Fig.14As shown, a magnet 37 is connected to the inside of the moving block 25, and the magnet 37 can adsorb and fix the connecting block 19 through magnetic force, so that when the moving block 25 drives the connecting block 19 to move, the connecting block 19 can be prevented from sliding in the arc-shaped slide groove 2501, ensuring that the bent pipe 1101 can be accurately inserted into the fixing ring 21 for fixation.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. An exhaust gas treatment device for a rare earth permanent magnet material sintering device, comprising: a support frame (1); a liquid storage tank (2), connected to the support frame (1), and having a circular hole (201) in the middle of the bottom of the liquid storage tank (2); a washing tower (3), connected to the top of the liquid storage tank (2); wherein: It also comprises: a controller (4) mounted on the outer wall of the washing tower (3); a conical plate (5) connected to the inner wall of the liquid storage tank (2); a connecting pipe (6) connected to the bottom of the conical plate (5) and maintained in communication; a hollow frame (7) connected to the bottom of the circular hole (201); a centrifugal pump (8) mounted on the tower body (301) of the washing tower (3); a liquid extraction pipe (9) having two ends respectively connected to the bottom of the hollow frame (7) and the liquid inlet of the centrifugal pump (8); a liquid outlet pipe (10) having two ends respectively connected to the tower body (301) of the washing tower (3) and the liquid outlet of the centrifugal pump (8); a hose (11) connected to the upper end of the liquid outlet pipe (10); and a bent pipe (1101) connected to the end of the hose (11); The nozzle (12) is mounted on the end of the curved pipe (1101); the mounting frame (13) is connected to the bottom of the hollow frame (7); the servo motor (14) is mounted on the bottom of the mounting frame (13); the rotating block (15) is connected to the output shaft of the servo motor (14), and the rotating block (15) is provided with a channel (1501) which is connected to the lower end of the connecting pipe (6); the liquid replacement component is arranged on the hollow frame (7) and is used to replace the liquid in the liquid storage tank (2); the moving component is arranged in the tower body (301) of the washing tower (3) and is used to control the movement of the nozzle (12); and the recovery component is arranged in the tower body (301) of the washing tower (3) and is used to recover clean water.

2. The exhaust gas treatment device for rare earth permanent magnet material sintering equipment according to claim 1, characterized in that: The liquid replacement assembly comprises: a liquid discharge pipe (16) connected to the bottom of the hollow frame (7) and maintained in communication; an electric control valve (17) installed on the liquid discharge pipe (16); and two liquid inlet pipes (18) provided, both of which are connected to the liquid storage tank (2) and maintained in communication, and the two liquid inlet pipes (18) are respectively located on the upper and lower sides of the conical plate (5).

3. The exhaust gas treatment device for rare earth permanent magnet material sintering equipment according to claim 2, characterized in that: The moving assembly comprises: a connecting block (19) connected to the top of the curved pipe (1101); a connecting frame (20) connected to the inner wall of the tower body (301) of the washing tower (3); a fixing ring (21) connected to the bottom of the connecting frame (20), and the fixing ring (21) is sleeved on the outside of the hose (11); a first driving motor (22) installed on the top of the connecting frame (20); a rotating disk (23) connected to the output shaft of the first driving motor (22), and the rotating disk (23) is located below the connecting frame (20), and a receiving groove (2301) is formed on the rotating disk (23); an electric push rod (24) is installed inside the rotating disk (23); a moving block (25) connected to the telescopic rod of the electric push rod (24), and an arc-shaped sliding groove (2501) is formed on the moving block (25), and the connecting block (19) can slide in the arc-shaped sliding groove (2501).

4. The exhaust gas treatment device for rare earth permanent magnet material sintering equipment according to claim 3 is characterized in that: The recovery component comprises: a reflux pipe (26), the two ends of which are respectively connected to a liquid storage tank (2) and a tower body (301) of a washing tower (3) and are kept in communication; and a collection frame (27), which is connected to the upper end of the reflux pipe (26) and is kept in communication, and the collection frame (27) is located inside the tower body (301) of the washing tower (3).

5. The exhaust gas treatment device for rare earth permanent magnet material sintering equipment according to claim 4, characterized in that: It also includes: an L-shaped baffle (29) connected to the nozzle (12), and a notch (28) is formed on the collecting frame (27), and the L-shaped baffle (29) blocks the notch (28).

6. The exhaust gas treatment device for rare earth permanent magnet material sintering equipment according to claim 5, characterized in that: The invention also comprises: a connecting plate (30) connected to the outer wall of the collecting frame (27); a second driving motor (31) mounted on the top of the connecting plate (30); a driving gear (32) connected to the output shaft of the second driving motor (31); a rotating cylinder brush (33) rotatably connected to the inside of the collecting frame (27); and a driven gear ring (34) connected to the outer wall of the rotating cylinder brush (33), wherein the driven gear ring (34) is meshed with the driving gear (32).

7. The exhaust gas treatment device for rare earth permanent magnet material sintering equipment according to claim 6, characterized in that: The invention also comprises: a third drive motor (35) which is installed at intervals in the circumferential direction at the bottom of the liquid storage tank (2); and a stirring rod (36) which is rotatably connected to the inside of the liquid storage tank (2) at intervals in the circumferential direction, and the rotating shaft of the stirring rod (36) is connected to the output shaft of the third drive motor (35).

8. The exhaust gas treatment device for rare earth permanent magnet material sintering equipment according to claim 7, characterized in that: It also includes a magnet (37) connected to the inside of the moving block (25), and the magnet (37) can absorb and fix the connecting block (19) through magnetic force.

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