Dust recovery device for refractory material crushing equipment

Abstract

The dust recovery device for the refractory material crushing equipment comprises a crushing box, supporting legs are symmetrically and fixedly connected to the two sides of the bottom of the crushing box, discharging pipes are symmetrically inlaid in the lower inner portion of the crushing box, and sealing blocks are connected to the inner sides of the bottoms of the discharging pipes in an inserted mode; a recycling mechanism is arranged on one side of the bottom of the smashing box, and a sealing assembly is arranged in the recycling mechanism. Wherein the recycling mechanism comprises a recycling box arranged on one side of the bottom of the crushing box, and an annular plate is fixedly connected to the bottom of the crushing box, so that dust generated during discharging of the refractory material can be quickly sucked, and the effect of effectively purifying the air quality of a working area can be achieved; and therefore, the problem that workers suck dust by mistake and hurt the body can be effectively avoided, the refractory material crushing and recycling efficiency is greatly improved, and convenience is brought to the workers during use.

Description

Technical Field

[0001] This utility model relates to the field of refractory material recycling technology, specifically a dust recovery device for refractory material crushing equipment. Background Technology

[0002] Refractory materials refer to a class of inorganic non-metallic materials with a refractoriness of not less than 1580℃. Refractory materials are used in various fields of the national economy, such as steel, non-ferrous metals, and glass. After the refractory materials are used, the remaining refractory materials need to be reused, which requires crushing the waste refractory materials.

[0003] Publication No. CN218282022U discloses a refractory material crushing and recycling device. This device, through the coordinated use of a housing, a first motor, a transmission rod, a first crushing wheel, a first gear, a second gear, a rotating shaft, a second crushing wheel, a grinding plate, an adjusting box, a second motor, a screw, a movable sleeve, a support rod, a mounting plate, a third motor, and a grinding roller, solves the problems of existing crushing and recycling devices that can only crush refractory materials once, resulting in incomplete crushing and the inability to adjust the size of the crushed material, thus hindering its recycling. However, this patent still has the following problems in practical use:

[0004] This device, through the coordinated use of a housing, a first motor, a transmission rod, a third motor, and grinding rollers, solves the problems of existing crushing and recycling devices that can only crush refractory materials once, resulting in incomplete crushing and an inability to adjust the size of the crushed refractory materials, thus hindering their recycling. Furthermore, when discharging the crushed refractory materials, dust is discharged along with small refractory particles, causing dust pollution near the discharge pipe, significantly reducing the air quality in the working environment and posing a danger to operators.

[0005] A dust recovery device for refractory material crushing equipment is proposed to solve the problems mentioned above. Utility Model Content

[0006] The purpose of this utility model is to provide a dust recovery device for refractory material crushing equipment, in order to solve the problems mentioned in the background art. The existing crushing and recovery devices, which use a combination of a housing, a first motor, a transmission rod, a third motor, and a grinding roller, can only crush refractory materials once, resulting in incomplete crushing and no adjustment of the size of the crushed refractory materials, thus hindering their recycling. When the refractory materials are discharged after crushing, dust is discharged along with small particles of refractory material, causing dust pollution near the discharge pipe and greatly reducing the air quality in the working environment.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a dust recovery device for refractory material crushing equipment, comprising a crushing box, wherein support legs are symmetrically fixedly connected to both sides of the bottom of the crushing box, and discharge pipes are symmetrically embedded in the lower interior of the crushing box, and a sealing block is inserted into the bottom inner side of the discharge pipe; a recovery mechanism is provided on one side of the bottom of the crushing box, and a sealing component is provided inside the recovery mechanism.

[0008] The recycling mechanism includes a recycling box located at the bottom of a crushing box. An annular plate is fixedly connected to the bottom of the crushing box, and an air pipe is fixedly installed between the recycling box and the annular plate. An annular groove is formed inside the annular plate, and connecting pipes are symmetrically embedded on the inner side of the annular plate. A tapered pipe is fixedly connected to the end of the connecting pipe away from the annular plate, and a mesh is fixedly installed inside the tapered pipe. An installation frame is fixedly installed on the top side of the recycling box, and a strip box is fixedly connected to the top inside the recycling box. A drive rod is rotatably connected between the strip box and the recycling box, and a servo motor is fixedly installed at one end of the drive rod. A rotating rod is rotatably connected between the strip box and the installation frame, and fan blades are fixedly connected to the outside of the rotating rod. A first tapered tooth is fixedly connected to the end of the drive rod away from the servo motor, and a second tapered tooth is fixedly connected to the bottom of the rotating rod. A frame is inserted into the upper interior of the recycling box, and a filter screen is fixedly connected inside the frame.

[0009] Preferably, a top plate is fixedly connected to the top of the frame, and limit boxes are symmetrically fixedly installed on the top of the recycling bin. A U-shaped rod is slidably connected inside one end of the limit box, and a fixing tube is fixedly installed on one side of the inside of the limit box. A squeezing rod is slidably connected inside one end of the fixing tube, and a first contraction spring is provided inside the fixing tube. A fixing plate is fixedly installed on one end of the U-shaped rod, and a sliding rod is symmetrically fixedly installed on the side of the fixing plate away from the U-shaped rod. One end of the sliding rod passes through the limit box and is slidably connected to the limit box. A push plate is fixedly installed on the side of the sliding rod away from the limit box, and a plug is welded to one side of the push plate. Slots are symmetrically opened on both sides of the top plate, and the plugs are inserted into the slots.

[0010] Preferably, the sealing assembly includes a discharge pipe fixedly installed on one side of the bottom of the recycling bin, and a sealing sleeve is sleeved on the outer side of the bottom of the discharge pipe. Limiting tubes are symmetrically fixedly installed on both sides of the sealing sleeve. A slider is slidably connected to one end of the limiting tube, and a protrusion is welded to one side of the slider. Grooves are symmetrically opened on both sides of the discharge pipe, and the outside of the protrusion fits into the inside of the groove. A second retraction spring is provided inside the limiting tube.

[0011] Preferably, a handle is fixedly connected to the top of the top plate.

[0012] Preferably, a dustproof mesh is embedded in the upper interior of the mounting frame.

[0013] Preferably, the first conical tooth and the second conical tooth are engaged in a meshing connection.

[0014] Preferably, the end of the extrusion rod away from the fixed tube is fixedly connected to the fixed plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: A dust recovery device for refractory material crushing equipment is described, in detail, as follows: The operation of a servo motor drives the rotation of a drive rod, the rotation of the first conical tooth drives the rotation of the second conical tooth, and the rotation of the rotating rod drives multiple sets of fan blades to rotate inside the mounting frame. At this time, a negative pressure is generated inside the mounting frame and the recovery box, which in turn generates suction inside the air pipe. This allows the multiple sets of conical pipes to absorb the dust generated during refractory material unloading. The dust and air are filtered by multiple sets of filters inside the frame, thus achieving rapid absorption of dust generated during refractory material unloading, effectively purifying the air quality in the working area, and effectively avoiding… This system eliminates the risk of workers accidentally inhaling dust, significantly improving the efficiency of refractory material crushing and recycling. It also provides greater convenience for workers. The system works by having workers place the sealing sleeve over the bottom outer side of the discharge pipe. The inner side of the sealing sleeve compresses the protruding blocks, causing the protruding blocks to slide within the limiting tube. Simultaneously, the second contraction spring contracts under pressure. When the sealing sleeve is fully inserted into the bottom outer side of the discharge pipe, the second contraction spring quickly extends and resets, allowing multiple sets of protruding blocks to interlock with the grooves. This enables rapid assembly of the discharge pipe and sealing sleeve, facilitating subsequent cleaning of the dust inside the recycling bin and greatly improving the efficiency of daily maintenance.

[0016] 1. The servo motor drives the drive rod to rotate, which in turn drives the first conical tooth to rotate, which in turn drives the second conical tooth to rotate, which in turn drives the rotating rod to rotate. The rotating rod then drives multiple sets of fan blades to rotate inside the mounting frame. This creates a negative pressure inside the mounting frame and the recovery box, resulting in suction inside the air pipe. Since the air pipe, annular groove, connecting pipe, and conical tubes are interconnected, multiple sets of conical tubes are used to extract the dust generated during refractory material unloading. The dust and air are filtered by multiple sets of filters inside the frame. The filters prevent larger refractory particles from entering the annular groove, thus enabling rapid extraction of dust generated during refractory material unloading. This effectively purifies the air quality in the working area, preventing workers from accidentally inhaling dust and causing harm, and significantly improving the performance of the refractory material. The improved efficiency of pyrometallurgical material crushing and recycling enhances the convenience of use for staff. The staff inserts the frame into the top of the recycling bin, then pulls two sets of U-shaped rods that slide inside the limiting box. These U-shaped rods move the fixing plate, which in turn moves the squeezing rod inside the fixing tube. This causes the first compression spring to contract, and the fixing plate then moves two sliding rods inside the limiting box. The staff then releases the U-shaped rods, utilizing the tension generated by the extension and reset of the first compression spring to allow multiple sets of inserts to connect with the slots. This enables quick and easy fixing of the top limiting plate, facilitating the installation and disassembly of the frame. It also facilitates subsequent cleaning and maintenance of the three-layer filter, effectively preventing dust filtration problems caused by clogged filter mesh and significantly improving the flexibility of the device.

[0017] 2. The worker places the sealing sleeve on the bottom outside of the discharge pipe. At this time, the inside of the sealing sleeve squeezes the protrusion. The protrusion drives the slider to slide inside the limiting tube. At this time, the second contraction spring is compressed and contracts. When the sealing sleeve is fully inserted into the bottom outside of the discharge pipe, the second contraction spring quickly extends and resets, so that multiple sets of protrusions and grooves can be inserted into each other. This achieves the effect of quickly assembling the discharge pipe and the sealing sleeve, which facilitates the worker's subsequent cleaning of the dust in the recycling box. This greatly improves the daily maintenance efficiency of the device and brings convenience to the worker during use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a cross-sectional view of the overall structure of the recycling bin in this utility model;

[0020] Figure 3 This is a bottom-view sectional view of the overall annular plate structure in this utility model;

[0021] Figure 4 This is a schematic diagram of the overall bottom view of the annular plate in this utility model;

[0022] Figure 5 This is a partially enlarged structural diagram of the recycling mechanism in this utility model;

[0023] Figure 6 This is a schematic diagram of the overall structure of the sealing component in this utility model.

[0024] In the diagram: 1. Crushing box; 101. Support leg; 102. Discharge pipe; 103. Sealing block; 2. Recycling mechanism; 201. Recycling box; 202. Annular plate; 203. Air pipe; 204. Annular groove; 205. Connecting pipe; 206. Conical tube; 207. Barrier net; 208. Mounting frame; 209. Strip box; 211. Drive rod; 212. Servo motor; 213. Rotating rod; 214. Fan blade; 215. First conical tooth; 216. Second conical tooth; 217. Frame; 21 8. Filter screen; 219. Top plate; 220. Limiting box; 221. U-shaped rod; 222. Fixing tube; 223. Extrusion rod; 224. First contraction spring; 225. Fixing plate; 226. Slide rod; 227. Push plate; 228. Insert block; 229. Slot; 230. Handle; 231. Dustproof net; 3. Sealing assembly; 301. Discharge pipe; 302. Sealing sleeve; 303. Limiting tube; 304. Slider; 305. Protrusion block; 306. Groove; 307. Second contraction spring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-6 The present invention provides a technical solution: a dust recovery device for refractory material crushing equipment, including a crushing box 1, with support legs 101 symmetrically fixedly connected to both sides of the bottom of the crushing box 1, and discharge pipes 102 symmetrically embedded in the lower interior of the crushing box 1, and a sealing block 103 inserted into the bottom inner side of the discharge pipe 102; a recovery mechanism 2 is provided on one side of the bottom of the crushing box 1, and a sealing component 3 is provided inside the recovery mechanism 2;

[0027] The recycling mechanism 2 includes a recycling box 201 located on one side of the bottom of the crushing box 1. An annular plate 202 is fixedly connected to the bottom of the crushing box 1. An air pipe 203 is fixedly installed between the recycling box 201 and the annular plate 202. An annular groove 204 is formed inside the annular plate 202, and connecting pipes 205 are symmetrically embedded on the inner side of the annular plate 202. A tapered pipe 206 is fixedly connected to the end of the connecting pipe 205 away from the annular plate 202. A mesh 207 is fixedly installed inside the tapered pipe 206. An installation frame 208 is fixedly installed on one side of the top of the recycling box 201. A strip box 209 is fixedly connected to the top inside the recycling box 201. A drive rod 211 is rotatably connected between the strip box 209 and the recycling box 201, and a servo motor 212 is fixedly installed at one end of the drive rod 211. Furthermore, a rotating rod 213 is rotatably connected between the strip box 209 and the mounting frame 208, and fan blades 214 are fixedly connected to the outside of the rotating rod 213. A first conical tooth 215 is fixedly connected to the end of the drive rod 211 away from the servo motor 212, and a second conical tooth 216 is fixedly connected to the bottom of the rotating rod 213. The first conical tooth 215 and the second conical tooth 216 are meshed together. A frame 217 is inserted into the upper interior of the recycling box 201, and a filter screen 218 is fixedly connected inside the frame 217. This enables the rapid absorption of dust generated during the unloading of refractory materials, thereby effectively purifying the air quality in the working area. This effectively avoids the problem of workers accidentally inhaling dust and causing harm to their bodies, greatly improving the efficiency of refractory material crushing and recycling, and bringing convenience to workers during use.

[0028] A top plate 219 is fixedly connected to the top of the frame 217, and a limit box 220 is symmetrically fixedly installed on the top of the recycling bin 201. A U-shaped rod 221 is slidably connected inside one end of the limit box 220, and a fixing tube 222 is fixedly installed on one side inside the limit box 220. A squeezing rod 223 is slidably connected inside one end of the fixing tube 222, and a first contraction spring 224 is provided inside the fixing tube 222. A fixing plate 225 is fixedly installed on one end of the U-shaped rod 221, and the end of the squeezing rod 223 away from the fixing tube 222 is fixedly connected to the fixing plate 225. A sliding rod 226 is symmetrically fixedly installed on the side of the fixing plate 225 away from the U-shaped rod 221, and one end of the sliding rod 226 passes through the limit box 220 and is slidably connected to the limit box 220. A push plate 227 is fixedly installed on the end of the sliding rod 226 away from the limit box 220. One side of the top plate 219 is welded with a plug 228, and the two sides of the top plate 219 are symmetrically provided with slots 229. The plug 228 and the slot 229 are inserted into each other, so as to achieve the effect of quickly fixing and limiting the top plate 219. This makes it easier for the staff to install and disassemble the frame 217, and facilitates the subsequent cleaning and maintenance of the three-layer filter screen 218. This effectively avoids the phenomenon of dust filtration failure caused by the filter screen 218 mesh being blocked by particles, greatly improving the flexibility of the device and bringing convenience to the staff. The top of the top plate 219 is fixedly connected with a handle 230. The design of the handle 230 makes it easy for the staff to operate the frame 217. The upper interior of the mounting frame 208 is inlaid with a dustproof net 231. The design of the dustproof net 231 prevents external dust from entering the inside of the recycling bin 201.

[0029] The sealing assembly 3 includes a discharge pipe 301 fixedly installed on one side of the bottom of the recycling bin 201, and a sealing sleeve 302 sleeved on the outer side of the bottom of the discharge pipe 301. Limiting tubes 303 are symmetrically fixedly installed on both sides of the sealing sleeve 302. A slider 304 is slidably connected to one end of the limiting tube 303. A protrusion 305 is welded to one side of the slider 304. Grooves 306 are symmetrically opened on both sides of the discharge pipe 301. The outside of the protrusion 305 fits into the inside of the groove 306. A second retraction spring 307 is provided inside the limiting tube 303. This allows for the quick assembly of the discharge pipe 301 and the sealing sleeve 302, which facilitates the subsequent cleaning of dust in the recycling bin 201 by the staff. This greatly improves the daily maintenance efficiency of the device and brings convenience to the staff during use.

[0030] Working principle: Before using this dust recovery device for refractory material crushing equipment, it is necessary to check the overall condition of the device to ensure it can operate normally. Figure 1 - Figure 6As shown, the refractory material is crushed in the crushing box 1. Then, the operator pulls the sealing block 103 out from the bottom of the discharge pipe 102, at which point the crushed refractory material is discharged from the discharge pipe 102. At the same time, the operator operates the controller to drive the servo motor 212. The operation of the servo motor 212 drives the drive rod 211 to rotate. The rotation of the drive rod 211 drives the first conical tooth 215 to rotate. The rotation of the first conical tooth 215 drives the second conical tooth 216 to rotate. The rotation of the second conical tooth 216 drives the rotating rod 213 to rotate. The rotation of the rotating rod 213 drives multiple sets of fan blades 214 to rotate inside the mounting frame 208. At this time, the mounting frame 208 and the recycling box 201... The internal negative pressure creates suction within the air pipe 203. Since the air pipe 203, annular groove 204, connecting pipe 205, and conical pipe 206 are interconnected, multiple sets of conical pipes 206 are used to extract dust generated during refractory material unloading. At this time, the dust and air are filtered by multiple sets of filters 218 inside the frame 217, with the mesh size of the three filters decreasing from large to small. Finally, excess air is discharged along with the fan blades 214. The baffle 207 prevents larger refractory material particles from entering the annular groove 204, thus achieving rapid extraction of dust generated during refractory material unloading and effectively purifying the air quality in the working area, thereby effectively preventing dust accumulation during work. This invention addresses the issue of workers accidentally inhaling dust, significantly improving the efficiency of refractory material crushing and recycling, and providing convenience for workers. Workers insert the frame 217 into the top of the recycling bin 201. They then pull two sets of U-shaped rods 221, which slide inside the limiting box 220. The U-shaped rods 221 move the fixing plate 225, causing the compression rod 223 to slide inside the fixing tube 222. This compresses the first contraction spring 224, causing the fixing plate 225 to slide the two sliding rods 226 inside the limiting box 220. Finally, the worker releases the U-shaped rods 221, allowing the first contraction spring 224 to extend and reset the product. The tension of the generated material allows multiple sets of inserts 228 to be inserted into the slots 229, thereby achieving the effect of quickly fixing the limiting top plate 219. This facilitates the installation and disassembly of the frame 217 by the staff, and also facilitates the subsequent cleaning and maintenance of the three-layer filter screen 218. This effectively prevents the filter screen 218 from being clogged by particles, thus avoiding poor dust filtration. It greatly improves the flexibility of the device during use and brings convenience to the staff. The design of the handle 230 makes it easy for the staff to operate the frame 217, and the design of the dustproof net 231 prevents external dust from entering the recycling bin 201.

[0031] When filter 218 filters dust from the air, the dust accumulates inside the recycling bin 201 near the inclined block. The collected dust can be easily discharged through the discharge pipe 301. When the operator puts the sealing sleeve 302 on the bottom outside of the discharge pipe 301, the inside of the sealing sleeve 302 presses against the protrusion 305. The protrusion 305 then drives the slider 304 to slide inside the limiting tube 303. At this time, the second contraction spring 307 is compressed and contracts. When the sealing sleeve 302 is fully inserted into the bottom outside of the discharge pipe 301, the second contraction spring 307 quickly extends and resets, allowing multiple sets of protrusions 305 to be inserted into the grooves 306. This enables the rapid assembly of the discharge pipe 301 and the sealing sleeve 302, facilitating subsequent cleaning of the dust inside the recycling bin 201 and greatly improving the daily maintenance efficiency of the device, providing convenience for operators.

[0032] In the prior art, CN218282022U discloses a crushing and recycling device for refractory materials, and the device used therein will not be described in detail here.

[0033] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A dust recovery device for refractory material crushing equipment, comprising a crushing box (1), both sides of the bottom of the crushing box (1) are symmetrically and fixedly connected with supporting legs (101), the lower inside of the crushing box (1) is symmetrically inlaid with a discharge pipe (102), and the bottom inside of the discharge pipe (102) is inserted with a sealing block (103); characterized in that Further comprising: One side of the bottom of the crushing box (1) is provided with a recovery mechanism (2), and the inside of the recovery mechanism (2) is provided with a sealing assembly (3); Wherein, the recovery mechanism (2) comprises a recovery box (201) arranged on one side of the bottom of the crushing box (1), the bottom of the crushing box (1) is fixedly connected with an annular plate (202), an air pipe (203) is fixedly installed between the recovery box (201) and the annular plate (202), a ring-shaped groove (204) is formed in the inside of the annular plate (202), connecting pipes (205) are symmetrically inlaid in the inside of the annular plate (202), tapered pipes (206) are fixedly connected to one ends of the connecting pipes (205) away from the annular plate (202), a screen (207) is fixedly installed in the inside of the tapered pipe (206), an installation frame (208) is fixedly installed on one side of the top of the recovery box (201), a strip-shaped box (209) is fixedly connected to the top inside of the recovery box (201), a drive rod (211) is rotatably connected between the strip-shaped box (209) and the recovery box (201), a servo motor (212) is fixedly installed on one end of the drive rod (211), a rotating rod (213) is rotatably connected between the strip-shaped box (209) and the installation frame (208), fan blades (214) are fixedly connected to the outside of the rotating rod (213), a first bevel gear (215) is fixedly connected to one end of the drive rod (211) away from the servo motor (212), a second bevel gear (216) is fixedly connected to the bottom of the rotating rod (213), a frame body (217) is inserted into the upper inside of the recovery box (201), and filter screens (218) are fixedly connected to the inside of the frame body (217).

2. The dust recovery device for a refractory material pulverizing apparatus according to claim 1, characterized by: The top of the frame (217) is fixedly connected with a top plate (219), the top of the recycling box (201) is fixedly installed with a limiting box (220) symmetrically, one end of the limiting box (220) is internally and slidably connected with a U-shaped rod (221), one side of the interior of the limiting box (220) is fixedly installed with a fixed tube (222), one end of the fixed tube (222) is internally and slidably connected with an extrusion rod (223), the interior of the fixed tube (222) is provided with a first contraction spring (224), one end of the U-shaped rod (221) is fixedly installed with a fixed plate (225), one side of the fixed plate (225) away from the U-shaped rod (221) is fixedly installed with a sliding rod (226) symmetrically, one end of the sliding rod (226) penetrates through the limiting box (220) and is slidably connected with the limiting box (220), one end of the sliding rod (226) away from the limiting box (220) is fixedly installed with a push plate (227), one side of the push plate (227) is welded with an insertion block (228), both sides of the top plate (219) are symmetrically provided with an insertion slot (229), and the insertion block (228) and the insertion slot (229) are insertedly connected.

3. The dust recovery device for refractory material pulverizing equipment according to claim 1, characterized in that: The sealing assembly (3) comprises a discharge pipe (301) fixedly installed on one side of the bottom of the recycling box (201), a sealing sleeve (302) is sleeved on the outer side of the bottom of the discharge pipe (301), limiting pipes (303) are fixedly installed on both sides of the interior of the sealing sleeve (302) symmetrically, sliding blocks (304) are slidably connected on one end of the limiting pipes (303), protruding blocks (305) are welded on one side of the sliding blocks (304), recesses (306) are symmetrically formed on both sides of the discharge pipe (301), the outer part of the protruding block (305) is matched with the interior of the recess (306), and the interior of the limiting pipe (303) is provided with a second contraction spring (307).

4. The dust recovery device for a refractory material pulverizing apparatus according to claim 2, characterized by: The top of the top plate (219) is fixedly connected with a handle (230).

5. The dust recovery device for refractory material pulverizing equipment according to claim 1, characterized in that: The upper interior of the mounting frame (208) is inlaid with a dustproof net (231).

6. The dust recovery device for refractory material pulverizing equipment according to claim 1, characterized in that: The first conical teeth (215) and the second conical teeth (216) are meshingly connected.

7. The dust recovery device for refractory material pulverizing equipment according to claim 2, characterized in that: One end of the extrusion rod (223) away from the fixed tube (222) is fixedly connected with the fixed plate (225).

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