Lime stirring and dust removing device

Abstract

The invention relates to a lime stirring dust removal device, and relates to the technical field of quick lime digestion dust removal, the lime stirring dust removal device comprises a digester, a dust removal box, a guide assembly, a collection assembly and a cleaning assembly, the dust removal box communicates with the digester through a drainage pipe; the two ends of the guide assembly are connected with the digester and the dust removal box correspondingly, and the guide assembly is used for guiding dust in the digester into the dust removal box; the collecting assembly comprises a driving piece, a transmission part and a collecting part, and the driving piece is fixedly arranged on the dust removal box; the transmission part is arranged in the dust removal box; the collecting part is arranged on the transmission part, the transmission part is used for driving the collecting part to rotate, and the collecting part is used for collecting dust in the dust removal box; the cleaning assembly comprises a water washing part and a scraping part, and the water washing part is arranged in the dust removal box and used for cleaning dust on the collecting part; the two ends of the scraping part are connected with the dust removal box and the driving piece correspondingly, and the scraping part is used for scraping dust on the inner wall of the dust removal box. The method has the effect of improving the dust removal efficiency in the quick lime digestion process.

Description

Technical Field

[0001] This application relates to the technical field of quicklime digestion and dust removal, and particularly to a lime stirring and dust removal device. Background Technique

[0002] Lime is an air-hardening inorganic cementitious material mainly composed of calcium oxide obtained by calcining raw materials such as limestone, dolomite or chalk. In the process of lime production, it is necessary to add water for slaking, that is, the process of converting quicklime into hydrated lime by adding water.

[0003] Currently, generally, quicklime enters the digester from the feed inlet, and at the same time, the spraying device evenly sprays water into the digester. The quicklime reacts chemically with water and gradually melts, digests, slakes and homogenizes.

[0004] However, the flue gas generated by quicklime digestion has strong adhesiveness and hydrophilicity. The strongly adhesive and hydrophilic dust is extremely easy to agglomerate or adhere to the inner walls of the dust collector and its pipelines, and it is extremely easy to cause problems such as dust removal pipeline blockage and fan vibration. Summary of the Invention

[0005] In order to improve the dust removal efficiency during the quicklime digestion process, this application provides a lime stirring and dust removal device.

[0006] A lime stirring and dust removal device provided by this application adopts the following technical solutions: A lime stirring and dust removal device includes: A digester; A dust removal box, which is connected to the digester through a drainage pipe; A guiding component, with both ends respectively connected to the digester and the dust removal box. The guiding component is used to guide the dust in the digester into the dust removal box; A collecting component, including: A driving member, fixedly arranged on the dust removal box; A transmission part, arranged in the dust removal box; A collecting part, arranged on the transmission part. The transmission part is used to drive the collecting part to rotate, and the collecting part is used to collect the dust in the dust removal box; A cleaning component, including: A water washing part, connected to the dust removal box and used to clean the dust on the collecting part; A scraping part, connected to the dust removal box and used to scrape the dust on the inner wall of the dust removal box.

[0007] By adopting the above technical solution, during the agitation and digestion of lime in the digester, a large amount of dust is generated. The guiding component guides the dust in the digester into the dust removal box. The driving member drives the transmission part to start, the transmission part drives the collection part to rotate, and the collection part collects the dust in the dust removal box, which can effectively intercept the dust. The water washing part cleans the dust collected on the collection part, and the scraping part scrapes off the dust attached to the inner wall of the dust removal box, which can effectively prevent the dust from escaping and prevent the dust removal pipeline from being blocked, thereby improving the dust removal efficiency during the slaking of quicklime.

[0008] Optionally, the driving member is a motor, and the transmission part includes: A connecting rod, one end of which is fixedly connected to the output shaft of the motor through a connecting shaft; A driving gear, which is rotatably connected to the end of the connecting rod away from the motor through a fixed shaft; An internal gear ring one, which is fixedly arranged on the dust removal box and meshes with the driving gear.

[0009] By adopting the above technical solution, the output shaft of the motor drives the connecting rod to rotate, the connecting rod drives the driving gear to rotate, and under the meshing action of the internal gear ring one, the driving gear rotates. The driving gear drives the collection part to rotate both around the axis of the motor for one week and at the end of the connecting rod, increasing the contact area between the collection part and the dust, thereby improving the dust collection efficiency.

[0010] Optionally, the collection part includes: A rotating rod, which is coaxially fixedly connected to the driving gear; A dust collection net, which is fixedly connected to the rotating rod, wherein the plane where the net surface is located is parallel to the axis direction of the rotating rod.

[0011] By adopting the above technical solution, the driving gear drives the rotating rod to rotate, the rotating rod drives the dust collection net to rotate, and the dust collection net intercepts the dust floating in the air and accumulates the dust on the dust collection net, thereby improving the dust collection efficiency.

[0012] Optionally, multiple groups of the transmission parts are provided, and the multiple groups of the transmission parts are arranged in a circle around the axis direction of the motor output shaft, and the multiple groups of the collection parts correspond to the multiple groups of the transmission parts one by one.

[0013] By adopting the above technical solution, the total area of the dust collection net is significantly increased, and a larger dust collection area can more effectively capture and collect the dust in the dust removal box, thereby facilitating the improvement of the dust removal efficiency.

[0014] Optionally, the water washing part includes: A water tank, which is fixedly arranged on the dust removal box; A flushing pipe, one end of which is communicated with the water tank and the other end of which is communicated with the dust removal box; A water pump, which is arranged on the flushing pipe.

[0015] By adopting the above technical solution, the water pump conveys the water in the water tank to the dust removal box through the flushing pipe to flush the dust collection net, which can effectively remove the dust attached to the dust collection net, thereby facilitating the maintenance of the cleanliness of the dust collection net and the dust removal efficiency.

[0016] Optionally, the scraping part includes: A driving gear coaxially and fixedly connected to the output shaft of the motor; A driven gear rotatably connected to the dust removal box and meshing with the driving gear; A first synchronous pulley coaxially and fixedly connected to the output shaft of the motor; A second synchronous pulley rotatably connected to the dust removal box, wherein the first synchronous pulley and the second synchronous pulley are jointly sleeved with a synchronous belt; An incomplete gear one coaxially and fixedly connected to the driven gear; An incomplete gear two coaxially and fixedly connected to the second synchronous pulley; A second internal gear ring rotatably connected to the dust removal box, and both the incomplete gear one and the incomplete gear two mesh with the second internal gear ring; Scrapers, multiple scrapers are uniformly arranged in a circumferential circle around the second internal gear ring, and one end of the scraper is fixedly connected to the second internal gear ring.

[0017] By adopting the above technical solution, the output shaft of the motor drives the driving gear to rotate, the driving gear drives the first synchronous pulley to rotate, the first synchronous pulley drives the synchronous belt to rotate, the synchronous belt drives the second synchronous pulley to rotate, and the driven gear and the first synchronous pulley drive the incomplete gear one and the incomplete gear two to rotate respectively, and the rotation directions are different; When the toothed part of the incomplete gear one turns away from the second internal gear ring, the toothed part of the incomplete gear two meshes, and the incomplete gear two drives the second internal gear ring to rotate in the opposite direction. The second internal gear ring drives the scraper to reciprocate, and the scraper scrapes the inner wall of the dust removal box. Multiple scrapers ensure that all parts of the inner wall of the dust removal box and the dust collection net can be comprehensively and evenly scraped, avoiding the accumulation and residue of dust.

[0018] Optionally, the guiding component includes: A dust concentration sensor fixedly arranged on the inner wall of the digester and used for outputting the dust concentration signal in the digester; An air pump arranged on the drainage pipe; A controller fixedly arranged on the dust removal box, and both the dust concentration sensor and the air pump are electrically connected to the controller.

[0019] By adopting the above technical solution, the dust concentration sensor can monitor the dust concentration in the digester in real time and output the dust concentration signal in the digester to the controller. When the dust concentration exceeds the preset threshold, the controller controls the air pump to start and increase the drainage volume, so as to more effectively guide the dust to the dust removal box for treatment, thereby improving the efficiency of the dust removal system.

[0020] Optionally, a plurality of spray pipes are arranged at one end of the flushing pipe far away from the water tank. The plurality of spray pipes are arranged along the vertical direction of the dust removal box and are all communicated with the flushing pipe. The communication part between the spray pipe and the dust removal box and the communication part between the drainage pipe and the dust removal box are located in the same vertical plane.

[0021] By adopting the above technical solution, the length of the dust collection net can be covered, so that the dust collection net can be comprehensively cleaned, thereby improving the cleaning effect.

[0022] Optionally, one end of the spray pipe far away from the flushing pipe is in a duckbill shape.

[0023] By adopting the above technical solution, the outlet of the spray pipe is wider, which helps to form a more uniform water mist, thereby increasing the coverage area of the spray. The uniformly distributed fluid can better contact with the dust particles, thereby improving the dust removal effect of the spray.

[0024] Optionally, a vibrator is fixedly installed on the digester.

[0025] By adopting the above technical solution, the vibrator can generate a periodically changing exciting force, so that the flue gas is not easily adhered to the inner walls of the dust collector and its pipelines.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: By setting the driving member, the transmission part and the collection part, it is easy to intercept the dust floating in the air and accumulate the dust on the dust collection net, thereby improving the dust collection efficiency; By setting the water washing part and the scraping part, it can effectively prevent the dust from escaping and prevent the dust removal pipeline from being blocked, thereby improving the dust removal efficiency during the quicklime digestion process; By setting the dust concentration sensor, the air pump and the controller, the dust can be more effectively guided to the dust removal box for treatment, thereby improving the efficiency of the dust removal system. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic structural diagram of an embodiment of the present application; Figure 2 is a cross-sectional view of the digester in the embodiment of the present application; Figure 3 is a cross-sectional view of the collection component and the cleaning component in the embodiment of the present application; Figure 4 It is a schematic structural diagram of the collection component and the cleaning component in the embodiment of the present application; Figure 5 is Figure 3 an enlarged view of part A in

[0028] Explanation of reference numerals: 1. Digester; 11. Drainage pipe; 12. Vibrator; 13. Drain pipe; 131. Valve; 2. Dust removal box; 3. Guide component; 31. Dust concentration sensor; 32. Air pump; 33. Controller; 4. Collection component; 41. Driving member; 411. Connecting shaft; 42. Transmission part; 421. Connecting rod; 4211. Fixed shaft; 422. Driving gear; 423. Inner gear ring I; 43. Collection part; 431. Rotating rod; 432. Dust collection net; 5. Cleaning component; 51. Water washing part; 511. Water tank; 512. Flushing pipe; 5121. Spraying pipe; 513. Water pump; 52. Scraping part; 521. Driving gear; 522. Driven gear; 523. Synchronous pulley I; 524. Synchronous pulley II; 5241. Timing belt; 525. Incomplete gear I; 526. Incomplete gear II; 527. Inner gear ring II; 528. Scraper. Detailed implementation manners

[0029] The following further elaborates on the present application in conjunction with the attached Figures 1-5 drawings.

[0030] The embodiment of the present application discloses a lime stirring dust removal device. Referring to Figures 1 to 3 , a lime stirring dust removal device includes a digester 1, a dust removal box 2, a guide component 3, a collection component 4 and a cleaning component 5. The dust removal box 2 is communicated with the digester 1 through a drainage pipe 11; both ends of the guide component 3 are respectively connected to the digester 1 and the dust removal box 2, and the guide component 3 is used to guide the dust in the digester 1 into the dust removal box 2; the collection component 4 is arranged in the dust removal box 2 and is used to collect the dust in the dust removal box 2; the cleaning component 5 is connected to the dust removal box 2 and is used to clean the dust in the dust removal box 2.

[0031] During use, the digester 1 stirs quicklime and water, the guide component 3 guides the dust generated in the digester 1 into the dust removal box 2, the collection component 4 collects the dust in the dust removal box 2, and the cleaning component 5 cleans the dust in the dust removal box 2, which can effectively prevent dust from escaping and prevent the dust removal pipeline from being blocked, thereby improving the dust removal efficiency during the quicklime digestion process.

[0032] Referring to Figure 1 , a vibrator 12 is fixedly installed on the digester 1, the dust removal box 2 is in a circular cylindrical shape and is vertically arranged. A drain pipe 13 is communicated with the bottom of the dust removal box 2, and a valve 131 is arranged on the drain pipe 13.

[0033] Reference Figure 1 and Figure 2 As shown in Figure 2 , the guiding component 3 includes a dust concentration sensor 31, an air pump 32 and a controller 33. The dust concentration sensor 31 is fixedly arranged on the inner wall of the digester 1 and is used for outputting a dust concentration signal inside the digester 1. The air pump 32 is arranged on the drainage pipe 11, the controller 33 is fixedly arranged on the dust removal box 2, both the dust concentration sensor 31 and the air pump 32 are electrically connected to the controller 33, and the controller 33 responds to the dust concentration signal output by the dust concentration sensor 31.

[0034] During use, the digester 1 stirs to generate flue gas. The dust concentration sensor 31 monitors the dust concentration inside the digester 1 in real time and outputs a dust concentration signal inside the digester 1 to the controller 33. When the dust concentration exceeds a preset threshold, the controller 33 controls the air pump 32 to start. The air pump 32 sucks the dust inside the digester 1 from the drainage pipe 11 into the dust removal box 2, so as to more effectively guide the dust to the dust removal box 2 for treatment, thereby improving the efficiency of the dust removal system.

[0035] Reference Figure 1 and Figure 3 As shown in Figure 3 , the collection component 4 includes a driving member 41, a transmission part 42 and a collection part 43. In the embodiment of the present application, the driving member 41 is a motor, and the motor is fixedly arranged at the center of the top end of the dust removal box 2. There are two groups of transmission parts 42, and the two groups of transmission parts 42 are symmetrically distributed on both sides of the motor.

[0036] Reference Figure 3 and Figure 4 As shown in Figure 4 , the transmission part 42 includes a connecting rod 421, a driving gear 422 and an inner gear ring 423. The connecting rod 421 is horizontally arranged, and one end of the connecting rod 421 is fixedly connected to the output shaft of the motor through a connecting shaft 411. The driving gear 422 is rotatably connected to the connecting rod 421 through a fixed shaft 4211. The inner gear ring 423 is fixedly arranged on the dust removal box 2 through a support block and there is a distance between the inner gear ring 423 and the inner wall of the dust removal box 2. The inner gear ring 423 meshes with the driving gear 422.

[0037] Reference Figure 3 and Figure 4 As shown in Figure 4 , there are two groups of collection parts 43, and the two groups of collection parts 43 correspond to the two groups of transmission parts 42 one by one. The collection part 43 includes a rotating rod 431 and a dust collection net 432. The rotating rod 431 is vertically arranged and is located below the driving gear 422. The rotating rod 431 is coaxially fixedly connected to the fixed shaft 4211.

[0038] Reference Figure 3 As shown in Figure 3 , the dust collection net 432 is in a rectangular mesh shape and is vertically arranged. The side of the dust collection net 432 is fixedly connected to the rotating rod 431, and the length direction of the dust collection net 432 is parallel to the axis direction of the rotating rod 431. Among them, the plane where the mesh surface of the dust collection net 432 is located is parallel to the axis direction of the rotating rod 431.

[0039] During use, the output shaft of the motor drives the connecting rod 421 to rotate through the connecting shaft 411. The connecting rod 421 drives the driving gear 422 to rotate through the fixed shaft 4211. Under the meshing action of the inner gear ring 423, the driving gear 422 rotates. The driving gear 422 drives the rotating rod 431 to rotate, and the rotating rod 431 drives the dust collecting net 432 to rotate. The dust collecting net 432 intercepts the dust floating in the air and accumulates the dust on the dust collecting net 432, thereby improving the dust collecting efficiency.

[0040] Referring to Figure 1 and Figure 3 As shown in, the cleaning assembly 5 includes a water washing part 51 and a scraping part 52. The water washing part 51 includes a water tank 511, a flushing pipe 512 and a water pump 513. The water tank 511 is in the shape of a rectangular box and is fixedly arranged on the outer wall of the dust removal box 2. One end of the flushing pipe 512 is communicated with the water tank 511, and the other end is communicated with the lower part of the dust removal box 2. The water pump 513 is arranged on the flushing pipe 512.

[0041] Referring to Figure 1 and Figure 3 As shown in, a plurality of spray pipes 5121 are arranged at one end of the flushing pipe 512 far from the water tank 511. The plurality of spray pipes 5121 are arranged along the height direction of the dust removal box 2 and are all communicated with the flushing pipe 512. One end of the spray pipe 5121 far from the flushing pipe 512 is in the shape of a duckbill.

[0042] Among them, the connection part between the spray pipe 5121 and the dust removal box 2 and the connection part between the drainage pipe 11 and the dust removal box 2 are located in the same vertical plane to improve the cleaning effect of the spray pipe 5121 on the dust collecting net 432.

[0043] Referring to Figures 3 to 5 As shown in, the scraping part 52 includes a driving gear 521, a driven gear 522, a first synchronous wheel 523, a second synchronous wheel 524, an incomplete gear 525, an incomplete gear 526, an inner gear ring 527 and a scraper 528. The driving gear 521 is coaxially and fixedly connected with the connecting shaft 411. The driven gear 522 is rotatably connected with the dust removal box 2 through a fixed rod and is meshed with the driving gear 521. The first synchronous wheel 523 is coaxially and fixedly connected with the connecting shaft 411.

[0044] Referring to Figures 3 to 5 As shown in, the second synchronous wheel 524 is rotatably connected with the dust removal box 2. A synchronous belt 5241 is sleeved on the first synchronous wheel 523 and the second synchronous wheel 524 together. The incomplete gear 525 is coaxially and fixedly connected with the driven gear 522. The incomplete gear 526 is coaxially and fixedly connected with the second synchronous wheel 524. The inner gear ring 527 is rotatably connected with the dust removal box 2 and is located above the inner gear ring 423. Both the incomplete gear 525 and the incomplete gear 526 can be meshed with the inner gear ring 527.

[0045] Referring toFigure 3 There are multiple scraping plates 528, and the multiple scraping plates 528 are evenly arranged circumferentially around the second internal gear ring 527. The scraping plates 528 are in the shape of rectangular plates and are vertically arranged. The top ends of the scraping plates 528 are fixedly connected to the second internal gear ring 527, and the side edges of the scraping plates 528 are in contact with the inner wall of the dust removal box 2.

[0046] During use, through the flushing pipe 512, the water pump 513 transports the water in the water tank 511 into the spray pipe 5121 to flush the dust collection net 432. At the same time, the output shaft of the motor drives the driving gear 521 to rotate, and the driving gear 521 drives the driven gear 522 to rotate; At the same time, the driving gear 521 drives the first synchronous pulley 523 to rotate, the first synchronous pulley 523 drives the synchronous belt 5241 to rotate, the synchronous belt 5241 drives the second synchronous pulley 524 to rotate, and the driven gear 522 and the second synchronous pulley 524 drive the first incomplete gear 525 and the second incomplete gear 526 to rotate respectively, and the rotation directions are different; When the toothed part of the first incomplete gear 525 rotates away from the second internal gear ring 527, the toothed part of the second incomplete gear 526 meshes, and the second incomplete gear 526 drives the second internal gear ring 527 to rotate in the opposite direction. The second internal gear ring 527 drives the scraping plate 528 to reciprocate, and the scraping plate 528 scrapes the inner wall of the dust removal box 2, thereby avoiding the accumulation and residue of dust.

[0047] The implementation principle of the lime stirring dust removal device in the embodiment of the present application is as follows: The digester 1 stirs to generate flue gas, and the dust concentration sensor 31 monitors the dust concentration in the digester 1 in real time. When the dust concentration exceeds the preset threshold, the controller 33 controls the air pump 32 to start, and the air pump 32 sucks the dust in the digester 1 into the dust removal box 2 from the drainage pipe 11; The motor drives the driving gear 422 to rotate. Under the meshing action of the first internal gear ring 423, the driving gear 422 rotates, the driving gear 422 drives the rotating rod 431 to rotate, the rotating rod 431 drives the dust collection net 432 to rotate, and the dust accumulates on the dust collection net 432. At the same time, the water pump 513 transports the water in the water tank 511 into the spray pipe 5121 to flush the dust collection net 432; The motor drives the driving gear 521 to rotate, the driving gear 521 drives the driven gear 522 to rotate, the driving gear 521 drives the first synchronous pulley 523 to rotate, the first synchronous pulley 523 drives the second synchronous pulley 524 to rotate, and the driven gear 522 and the second synchronous pulley 524 drive the first incomplete gear 525 and the second incomplete gear 526 to rotate respectively, and the rotation directions are different; When the toothed part of the incomplete gear 525 turns away from the internal gear ring 527, the toothed part of the incomplete gear 526 meshes, and the incomplete gear 526 drives the internal gear ring 527 to rotate in the opposite direction. The internal gear ring 527 drives the scraper 528 to reciprocate, and the scraper 528 scrapes the inner wall of the dust removal box 2. After the collection and cleaning are completed, the valve 131 is opened to discharge the sewage from the drain pipe 13, thereby improving the dust removal efficiency during the quicklime digestion process.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A lime stirring and dust removal device, characterized in that: include: Digestive system (1); A dust removal box (2) connected to the digester (1) via a drainage pipe (11); A guide component (3), two ends of which are respectively connected to the digester (1) and the dust removal box (2), and the guide component (3) is used to guide dust in the digester (1) into the dust removal box (2); A collection assembly (4) comprising: A driving member (41) fixedly mounted on the dust removal box (2); A transmission part (42) is arranged in the dust removal box (2); A collecting portion (43) is arranged on the transmission portion (42), the transmission portion (42) is used to drive the collecting portion (43) to rotate, and the collecting portion (43) is used to collect dust in the dust removal box (2); Cleaning components (5), including: A water washing section (51) connected to the dust removal box (2) and used to clean dust on the collecting section (43); The scraping portion (52) is connected to the dust removal box (2) and is used to scrape dust on the inner wall of the dust removal box (2).

2. A lime stirring and dust removal device according to claim 1, characterized in that: The driving member (41) is a motor, and the transmission part (42) comprises: A connecting rod (421), one end of which is fixedly connected to the output shaft of the motor via a connecting shaft (411); A driving gear (422) is rotationally connected to an end of the connecting rod (421) away from the motor via a fixed shaft (4211); An inner gear ring (423) is fixedly mounted on the dust removal box (2) and meshes with the driving gear (422).

3. A lime stirring and dust removal device according to claim 2, characterized in that: The collecting unit (43) comprises: A rotating rod (431) is coaxially fixedly connected to the driving gear (422); The dust collecting net (432) is fixedly connected to the rotating rod (431), wherein the plane where the net surface is located is arranged parallel to the axial direction of the rotating rod (431).

4. A lime stirring and dust removal device according to claim 2, characterized in that: The transmission parts (42) are provided in multiple groups, and the multiple groups of transmission parts (42) are arranged around the axis direction of the motor output shaft, and the multiple groups of collecting parts (43) correspond to the multiple groups of transmission parts (42) one by one.

5. A lime stirring and dust removal device according to claim 1, characterized in that: The water washing section (51) comprises: A water tank (511) fixedly mounted on the dust removal box (2); A flushing pipe (512), one end of which is connected to the water tank (511), and the other end of which is connected to the dust removal box (2); A water pump (513) is arranged on the flushing pipe (512).

6. A lime stirring and dust removal device according to claim 3, characterized in that: The scraping portion (52) comprises: A driving gear (521) is coaxially fixedly connected to the output shaft of the motor; A driven gear (522) is rotationally connected to the dust removal box (2) and meshes with the driving gear (521); A synchronous wheel 1 (523), coaxially connected to the output shaft of the motor; A second synchronous wheel (524) is rotationally connected to the dust removal box (2), wherein the first synchronous wheel (523) and the second synchronous wheel (524) are both sleeved with a synchronous belt (5241); An incomplete gear 1 (525) is coaxially fixedly connected to the driven gear (522); An incomplete gear 2 (526) is coaxially fixedly connected to the synchronous gear 2 (524); The second inner gear ring (527) is rotatably connected to the dust removal box (2), and the first incomplete gear (525) and the second incomplete gear (526) are both meshed with the second inner gear ring (527); A plurality of scrapers (528) are provided, and the plurality of scrapers (528) are evenly arranged in a circle around the circumference of the second inner gear ring (527), and one end of the scraper (528) is fixedly connected to the second inner gear ring (527).

7. A lime stirring and dust removal device according to claim 5, characterized in that: The guide component (3) comprises: A dust concentration sensor (31) is fixedly mounted on the inner wall of the digester (1) and is used to output a dust concentration signal in the digester (1); An air pump (32) is arranged on the drainage tube (11); The controller (33) is fixedly mounted on the dust removal box (2); the dust concentration sensor (31) and the air pump (32) are both electrically connected to the controller (33).

8. A lime stirring and dust removal device according to claim 7, characterized in that: A plurality of spray pipes (5121) are provided at one end of the flushing pipe (512) away from the water tank (511); the plurality of spray pipes (5121) are arranged in a vertical direction of the dust removal box (2) and are all connected to the flushing pipe (512); and the connection point between the spray pipe (5121) and the dust removal box (2) and the connection point between the drainage pipe (11) and the dust removal box (2) are located in the same vertical plane.

9. A lime stirring and dust removal device according to claim 8, characterized in that: The end of the spray pipe (5121) away from the flushing pipe (512) is in a duckbill shape.

10. A lime stirring and dust removal device according to claim 1, characterized in that: A vibrator (12) is fixedly mounted on the digester (1).

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