Grinding powder recycling box of refractory material grinding device
By introducing an anti-clogging feed section and a screening and filtration section into the grinding and recovery device, the problems of clogging and low screening efficiency during the grinding process are solved, achieving stable material feeding and efficient separation, and improving the production efficiency and quality of refractory materials.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-04-14
AI Technical Summary
Traditional grinding and recovery devices are prone to clogging during the feeding process, making it impossible to effectively adjust the feeding speed and causing equipment damage; the screening efficiency is low, and it is impossible to effectively separate materials of different particle sizes, affecting the quality of refractory materials.
The design includes an anti-clogging feeding section and a screening and filtration section. The anti-clogging feeding section prevents material blockage through a feeding buffer tank and a stirring motor, while the screening and filtration section separates materials of different particle sizes through a vibrating screening structure.
It effectively prevents material blockage, improves the stability of feeding and screening efficiency, ensures material separation by particle size and removal of impurities, and enhances production continuity and product quality.
Smart Images
Figure CN224114177U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of refractory material technology, specifically to a grinding recovery box for a refractory material grinding device. Background Technology
[0002] Grinding is a crucial step in the processing of refractory materials. The recycling and treatment of the ground materials is essential for improving production efficiency, reducing costs, and ensuring product quality.
[0003] Traditional grinding and recovery devices often suffer from numerous problems. Regarding feeding, the fluidity and physical properties of the ground materials easily lead to blockages at the feed inlet. This may be due to unstable material speed during transport, or the material's inherent viscosity and agglomeration properties, causing accumulation in the feed channel and interrupting the grinding and recovery process, affecting the continuity of the entire production. Furthermore, the lack of a buffer design in the feeding structure makes it unable to effectively adjust to varying feed speeds in the grinding unit, easily causing excessive material impact and damaging the internal structure of the subsequent recovery tank. In the screening and filtration stage, traditional devices may only use simple single-layer filtration or lack an effective vibration screening mechanism. A single filtration method cannot meet the complex particle size distribution of refractory materials after grinding, and cannot effectively separate materials of different particle sizes. The lack of a vibration screening structure easily leads to sieve clogging, reducing screening efficiency and allowing materials that do not meet the particle size requirements to mix into the finished product, affecting the quality of the refractory materials. Simultaneously, the lack of a reasonable screening and filtration structure design makes cleaning and maintenance difficult after prolonged use, further affecting the equipment's service life and overall performance. Utility Model Content
[0004] The purpose of this invention is to provide a grinding recovery box for a refractory grinding device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a grinding recovery box for a refractory grinding device, comprising a recovery box, an anti-clogging feed section, and a screening and filtering section, wherein support pads are fixedly installed at equal intervals around the bottom outer wall of the recovery box; the anti-clogging feed section is located at the top of the recovery box; and the screening and filtering section is located at the bottom of the anti-clogging feed section.
[0006] Preferably, the anti-clogging feeding section specifically includes: a support column, disposed at the top of the anti-clogging feeding section; a fixing plate, fixedly installed at the top of the support column; the fixing plate has an installation port, and a feeding buffer tank is fixedly installed on the inner wall of the installation port. The feeding buffer tank is provided, and a stirring motor is installed inside the feeding buffer tank. Its output end is connected to a rotating rod and a conveying spiral blade, etc. The stirring motor drives the rotating rod to rotate, so that the conveying spiral blade rotates in the feeding pipe. For refractory grinding materials, which may have particle agglomeration or stickiness, the rotation of the spiral blade can disperse the material and push it downward, avoiding the accumulation and blockage of the material in the feeding pipe.
[0007] Preferably, a feed pipe is connected to the top of the feed buffer tank, a fixing frame is fixedly installed on the inner wall of the feed buffer tank, a stirring motor is fixedly installed on the top of the fixing frame, and a conical guide block is fixedly installed on the top of the stirring motor. The output end of the stirring motor movably passes through the top of the fixing frame and extends to the bottom of the fixing frame, where the conical guide block is located. The conical guide block inside the feed buffer tank is located above the stirring motor. When material enters the buffer tank from the feed pipe, it first impacts the conical guide block, and the material disperses along the inclined surface of the conical guide block. This dispersion effect allows the material to be more evenly distributed within the buffer tank, preventing material from concentrating in one place and causing blockages, while also facilitating subsequent stirring and conveying operations.
[0008] Preferably, the output end of the stirring motor is fixedly connected to a rotating rod, the other end of the rotating rod is fixedly connected to a conveying spiral blade, a connecting sleeve is fixedly sleeved on the outer wall of the rotating rod, connecting rods are fixedly connected at equal intervals on the outer wall of the connecting sleeve, a stirring rod is fixedly connected to the other end of the connecting rod, a second feeding pipe is connected to the bottom of the feeding buffer tank, and the conveying spiral blade is disposed inside the second feeding pipe.
[0009] Preferably, the screening and filtering section specifically includes: a screening box, which is connected to the top of the recycling box; a box door, which is located on the outer wall of the screening box; a recycling drawer, which is located inside the recycling box; and a motor mounting bracket, which is fixedly installed on the outer wall of the screening box.
[0010] Preferably, the top of the screening box has a feed inlet, which is connected to the second feed pipe. A motor is fixedly installed inside the motor mounting bracket. A pulley is fixedly connected to the output end of the motor. The pulley is rotatably connected to the outer wall of the screening box. The pulley is rotatably connected to a second pulley via a belt. The second pulley is also rotatably connected to the outer wall of the screening box. A positioning rod and a sliding block are fixedly installed on the inner wall of the screening box. A vibrating plate and a vibrating plate are movably fitted on the outer wall of the positioning rod. A motor is installed, and the motor drives the vibrating plate and the vibrating plate to vibrate via the pulley, causing the filter boxes 1 and 2 installed on them to vibrate. This vibration screening method is more efficient than static screening. For refractory material grinding, powders of different particle sizes need to be effectively separated. Vibration can make the powder jump and tumble continuously in the filter box, increasing the chance of the powder passing through the sieve holes. Especially for particles whose particle size is close to the size of the sieve holes, vibration can prevent them from getting stuck in the sieve holes, thereby improving the screening throughput and accuracy.
[0011] Preferably, both the first and second vibrating plates have rectangular sliding openings. The first and second vibrating plates are movably fitted onto the outer wall of the slide block through the rectangular sliding openings. A filter box is fixedly installed on the top of the first vibrating plate, and a filter box is fixedly installed on the top of the second vibrating plate. Large sieve holes are equidistantly opened on the inner wall of the first filter box, and small sieve holes are opened on the outer wall of the second filter box. Springs one and two are movably fitted onto the outer wall of the positioning rod. One end of spring one is fixedly connected to the top of the inner wall of the screening box, and the other end of spring one is fixedly connected to the first vibrating plate. One end of spring two is fixedly connected to the bottom of the inner wall of the screening box, and the other end of spring two is fixedly connected to the second vibrating plate.
[0012] Preferably, a cam slider is fixedly installed at the bottom of both the first and second vibrating plates. A shaft is fixedly connected to the outer wall of the first pulley. The other end of the shaft extends through the outer wall of the screening box and into the interior of the screening box. The other end of the shaft is rotatably connected to the inner wall of the screening box. A shaft is fixedly connected to the outer wall of the second pulley. The other end of the shaft extends through the outer wall of the screening box and into the interior of the screening box. The other end of the shaft is rotatably connected to the inner wall of the screening box. A cam is fixedly fitted on the outer wall of both the first and second shafts, and the cam is adapted to the cam slider.
[0013] This utility model provides a grinding recovery box for a refractory material grinding device. It has the following beneficial effects:
[0014] (1) This utility model uses a feed buffer tank to buffer the material. During the feeding process of refractory grinding, if the material is directly rushed into the recovery box at high speed, it may cause impact, damage the internal structure of the equipment, or lead to uneven material distribution. The buffer tank allows the material to be temporarily stored in it, slowing down the feeding speed and reducing the impact on subsequent equipment. The stirring motor drives the conical guide block to rotate, which can stir the material entering the feed buffer tank. For refractory grinding, which may have particle agglomeration or moisture changes that cause caking, stirring can keep the material in a loose state and prevent it from accumulating and blocking in the feed buffer tank. The conveying spiral blade on the rotating rod is set in the feed pipe, which can stably convey the material downward. At the same time, the setting of the connecting sleeve, connecting rod and stirring rod further stirs and guides the material in the feed buffer tank, preventing the material from accumulating on the tank wall or corners, ensuring that the material can continuously and smoothly enter the next stage, thereby maintaining the stable operation of the entire grinding and recovery system. This structure can effectively deal with the clogging problem caused by uneven particle size and changes in material properties during the refractory grinding process.
[0015] (2) This utility model uses filter boxes with different sieve openings. One opening of the filter box has a large sieve opening, and the other opening has a small sieve opening. This allows for particle size classification of the ground powder. During the screening process, not only can the powder be separated according to particle size, but impurities mixed in with the ground powder can also be removed. Impurities may include foreign matter mixed in during the production process or unqualified parts of the refractory material itself. In the production of refractory materials, powders of different particle sizes are suitable for different processes and product requirements. Through screening and filtration, powders of different particle sizes can be separated into different areas, making it convenient to classify and recycle powders of different particle sizes. Attached Figure Description
[0016] Figure 1 This is a frontal perspective view of the overall structure of this utility model;
[0017] Figure 2 This is a partial cross-sectional view of the anti-clogging feed section of this utility model;
[0018] Figure 3 This is a partial view of the screening and filtering section of this utility model;
[0019] Figure 4 This is a partial view of the cam of this utility model.
[0020] In the diagram: 1. Recycling bin; 2. Support pad; 3. Anti-clogging feed section; 3.11. Support column; 3.12. Feed pipe one; 3.13. Conical guide block; 3.14. Fixing frame; 3.15. Stirring motor; 3.16. Fixing plate; 3.17. Rotating rod; 3.18. Connecting sleeve; 3.19. Connecting rod; 3.111. Stirring rod; 3.112. Feed pipe two; 3.113. Feed buffer tank; 3.114. Conveying spiral blade; 4. Screening and filtration section; 4.11. Recycling drawer; 4.12. Motor fixing frame; 4. 13 Motor, 414 Screening Box, 415 Box Door, 416 Pulley 1, 417 Pulley 2, 418 Feed Inlet, 419 Vibrating Plate 1, 4111 Rectangular Slide, 4112 Slide Block, 4113 Positioning Rod, 4114 Spring 1, 4115 Spring 2, 4116 Shaft 1, 4117 Cam, 4118 Cam Slider, 4119 Filter Box 1, 41111 Filter Box 2, 41112 Shaft 2, 41113 Vibrating Plate 2. Detailed Implementation
[0021] 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.
[0022] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.
[0023] Example 1:
[0024] A preferred embodiment of the grinding recovery box of the refractory material grinding device provided by this utility model is, for example... Figure 1-4 As shown: A grinding recovery box for a refractory grinding device includes a recovery box 1, an anti-clogging feed section 3, and a screening and filtering section 4. Supporting pads 2 are fixedly installed at equal intervals around the bottom outer wall of the recovery box 1; the anti-clogging feed section 3 is located at the top of the recovery box 1; and the screening and filtering section 4 is located at the bottom of the anti-clogging feed section 3.
[0025] The anti-clogging feeding section 3 specifically includes: a support column 311, which is set at the top of the anti-clogging feeding section 3; a fixing plate 316, which is fixedly installed on the top of the support column 311; the fixing plate 316 has an installation port, and a feeding buffer tank 3113 is fixedly installed on the inner wall of the installation port.
[0026] The top of the feed buffer tank 3113 is connected to a feed pipe 312. A fixing frame 314 is fixedly installed on the inner wall of the feed buffer tank 3113. A stirring motor 315 is fixedly installed on the top of the fixing frame 314. A conical guide block 313 is fixedly installed on the top of the stirring motor 315. The output end of the stirring motor 315 moves through the top of the fixing frame 314 and extends to the bottom of the fixing frame 314.
[0027] The output end of the stirring motor 315 is fixedly connected to the rotating rod 317. The other end of the rotating rod 317 is fixedly connected to the conveying spiral blade 3114. The outer wall of the rotating rod 317 is fixedly fitted with a connecting sleeve 318. The outer wall of the connecting sleeve 318 is fixedly connected with connecting rods 319 at equal intervals. The other end of the connecting rod 319 is fixedly connected to the stirring rod 3111. The bottom of the feeding buffer tank 3113 is connected to the second feeding pipe 3112. The conveying spiral blade 3114 is located inside the second feeding pipe 3112.
[0028] In this embodiment, the stirring motor 315 starts, and its output end drives the rotating rod 317 to rotate. The rotating rod 317 drives the conveying spiral blade 3114 to rotate. At the same time, the connecting rod 319 on the connecting sleeve 318 drives the stirring rod 3111 to stir the material. The stirring action can prevent the material from clumping or accumulating in the feed buffer tank 3113, so that the material is more evenly distributed. The conveying spiral blade 3114 rotates in the feed pipe 3112, which stably conveys the material downward, avoiding the blockage problem that may be caused by the rapid fall of the material. The stirring and guiding of the material prevents the material from accumulating on the tank wall or in the corner, ensuring that the material can continuously and smoothly enter the next stage, thereby maintaining the stable operation of the entire grinding and recovery system. This structure can effectively deal with the blockage problem caused by uneven particle size and changes in material properties during the grinding of refractory materials.
[0029] Example 2:
[0030] Based on Embodiment 1, the present invention provides a preferred embodiment of a grinding recovery box for a refractory material grinding device, for example... Figure 1-4 As shown: The screening and filtering unit 4 specifically includes: a screening box 414, which is connected to the top of the recycling box 1; a box door 415, which is located on the outer wall of the screening box 414; a recycling drawer 411, which is located inside the recycling box 1; and a motor mounting bracket 412, which is fixedly installed on the outer wall of the screening box 414.
[0031] The top of the screening box 414 is provided with a feed inlet 418, which is connected to the feed pipe 3112. The motor 413 is fixedly installed inside the motor mounting bracket 412. The output end of the motor 413 is fixedly connected to a pulley 416. The pulley 416 is rotatably connected to the outer wall of the screening box 414. The pulley 416 is rotatably connected to a pulley 417 via a belt. The pulley 417 is rotatably connected to the outer wall of the screening box 414. The inner wall of the screening box 414 is fixedly installed with a positioning rod 4113 and a sliding block 4112. The outer wall of the positioning rod 4113 is movably fitted with a vibrating plate 419 and a vibrating plate 41113.
[0032] Both vibrating plate 1 (419) and vibrating plate 2 (41113) have rectangular sliding openings (4111). Vibrating plate 1 (419) and vibrating plate 2 (41113) are movably fitted onto the outer wall of sliding plate block 4112 through the rectangular sliding openings (41111). Filter box 1 (4119) is fixedly installed on the top of vibrating plate 1 (4119), and filter box 2 (41111) is fixedly installed on the top of vibrating plate 2 (41113). Large sieve holes are equidistantly opened on the inner wall of filter box 1 (4119), and small sieve holes are opened on the outer wall of filter box 2 (41111). Spring 1 (4114) and spring 2 (4115) are movably fitted onto the outer wall of positioning rod 4113. One end of spring 1 (4114) is fixedly connected to the top of the inner wall of screening box 414, and the other end of spring 1 (4114) is fixedly connected to vibrating plate 1 (419). One end of spring 2 (4115) is fixedly connected to the bottom of the inner wall of screening box 414, and the other end of spring 2 (4115) is fixedly connected to vibrating plate 2 (41113).
[0033] Both the bottom of vibrating plate 1 (419) and vibrating plate 2 (41113) are fixedly equipped with cam sliders 4118. The outer wall of pulley 1 (416) is fixedly connected to shaft 1 (4116). The other end of shaft 1 (4116) movably passes through the outer wall of screening box 414 and extends into the interior of screening box 414. The other end of shaft 1 (4116) is rotatably connected to the inner wall of screening box 414. The outer wall of pulley 2 (417) is fixedly connected to shaft 2 (41112). The other end of shaft 2 (41112) movably passes through the outer wall of screening box 414 and extends into the interior of screening box 414. The other end of shaft 2 (41112) is rotatably connected to the inner wall of screening box 414. The outer walls of shaft 1 (4116) and shaft 2 (41112) are both fixedly fitted with cams 4117, which are adapted to cam sliders 4118.
[0034] In this embodiment, the motor 413 starts, driving pulley 416 to rotate. Pulley 416 drives pulley 417 to rotate via a belt. Shaft 4116 on pulley 416 and shaft 41112 on pulley 417 rotate together with the pulleys. Cams 4117 on shafts 4116 and 41112 also rotate. Cams 4117 interact with cam sliders 4118 at the bottom of vibrating plate 419 and vibrating plate 41113, causing vibrating plate 419 and vibrating plate 41113 to vibrate up and down under the guidance of positioning rod 4113. Vibrating plate 419 and vibrating plate 41113 slide on sliding plate block 4112 through rectangular sliding mouth 4111, ensuring the stability of vibration. During the screening process, not only can powder be separated according to particle size, but impurities mixed in the grinding can also be removed. Impurities may include foreign matter mixed in during the production process or substandard parts of the refractory material itself. In the production of refractory materials, powders of different particle sizes are suitable for different processes and product requirements.
[0035] Working principle: The recycling bin 1 is the main body of the entire device. Support blocks 2, equidistantly fixed to the bottom outer wall, are used to stably support the recycling bin, ensuring its stability during operation. Feeding buffer and stirring: Material enters the feeding buffer tank 3113 through the feeding pipe 312. The conical guide block 313 at the top of the feeding buffer tank 3113 provides initial guidance and dispersion for the feed. The stirring motor 315 starts, and its output drives the rotating rod 317 to rotate. The rotating rod 317 drives the conveying spiral blade 3114 to rotate. Simultaneously, the connecting rod 319 on the connecting sleeve 318 drives the stirring rod 3111 to stir the material. This stirring action prevents material from stagnating inside the feeding buffer tank 3113. To prevent clumping or accumulation, the material is distributed more evenly. The conveying spiral blade 3114 rotates inside the feed pipe 3112, steadily conveying the material downwards and avoiding blockages that may occur due to rapid material descent. The material enters the screening box: After being processed by the anti-clogging feed section, the material enters the feed inlet 418 at the top of the screening box 414 through the feed pipe 3112. The motor 413 starts, driving pulley 416 to rotate. Pulley 416 drives pulley 417 to rotate via a belt. The shaft 4116 on pulley 416 and the shaft 41112 on pulley 417 rotate together with the pulleys. Cam 4117 also rotates accordingly. Cam 4117 interacts with the cam slider 4118 at the bottom of vibrating plate one 419 and vibrating plate two 41113, causing vibrating plate one 419 and vibrating plate two 41113 to vibrate up and down under the guidance of positioning rod 4113. Vibrating plate one 419 and vibrating plate two 41113 slide on sliding block 4112 through rectangular sliding opening 4111, ensuring vibration stability. Spring one 4114 and spring two 4115 provide elastic restoring force for the vibration of vibrating plate one 419 and vibrating plate two 41113 respectively, allowing vibration to continue. The inner wall of filter box one 4119 on vibrating plate one 419 has large sieve holes. Vibrating plate two 41119... The filter box 41111 on 113 has small sieve holes. During vibration, the material is screened in the filter box 4119 and the filter box 41111. Larger particles are intercepted by the large sieve holes of the filter box 4119, while smaller particles continue to pass through the filter box 4119 and are further screened by the small sieve holes of the filter box 41111. The screened materials enter the corresponding recycling drawers 411 in the recycling box 1 for collection. Then, by opening the box door 415, material particles of different sizes are recycled. Through the above steps, the entire grinding recycling box realizes a series of functions from feeding anti-clogging to material screening, filtration and collection, effectively recycling refractory grinding powder.
[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0037] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model 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 this utility model should be included within the protection scope of this utility model.
Claims
1. A grinding recovery box for a refractory grinding device, comprising a recovery box (1), an anti-clogging feed section (3), and a screening and filtering section (4), characterized in that, Support pads (2) are fixedly installed at equal intervals around the bottom outer wall of the recycling bin (1); the anti-clogging feed section (3) is located at the top of the recycling bin (1); the screening and filtering section (4) is located at the bottom of the anti-clogging feed section (3); the anti-clogging feed section (3) specifically includes: Support column (311) is set at the top of anti-clogging feed section (3); A fixing plate (316) is fixedly installed on the top of the support column (311); An installation port is provided on the fixed plate (316), and a feed buffer tank (3113) is fixedly installed on the inner wall of the installation port; a feed pipe (312) is connected to the top of the feed buffer tank (3113), a fixed frame (314) is fixedly installed on the inner wall of the feed buffer tank (3113), a stirring motor (315) is fixedly installed on the top of the fixed frame (314), a conical guide block (313) is fixedly installed on the top of the stirring motor (315), and the output end of the stirring motor (315) movably passes through the top of the fixed frame (314) and extends to the bottom of the fixed frame (314). The output end of the stirring motor (315) is fixedly connected to the rotating rod (317), and the other end of the rotating rod (317) is fixedly connected to the conveying spiral blade (3114). The outer wall of the rotating rod (317) is fixedly fitted with a connecting sleeve (318), and the outer wall of the connecting sleeve (318) is fixedly connected with connecting rods (319) at equal intervals. The other end of the connecting rod (319) is fixedly connected to the stirring rod (3111). The bottom of the feeding buffer tank (3113) is connected to the second feeding pipe (3112), and the conveying spiral blade (3114) is located inside the second feeding pipe (3112). The filtering unit (4) specifically includes: A screening box (414) is connected to the top of the recycling box (1); The door (415) is located on the outer wall of the screening box (414); A recycling drawer (411) is located inside the recycling bin (1); A motor mounting bracket (412) is fixedly installed on the outer wall of the screening box (414); the top of the screening box (414) is provided with a feed inlet (418), which is connected to the feed pipe (3112). A motor (413) is fixedly installed inside the motor mounting bracket (412), and a pulley (416) is fixedly connected to the output end of the motor (413). The pulley (416) is rotatably connected to the outer wall of the screening box (414). 416) A second pulley (417) is rotatably connected to the outer wall of the screening box (414) via a belt. A positioning rod (4113) and a sliding block (4112) are fixedly installed on the inner wall of the screening box (414). A vibrating plate (419) and a vibrating plate (41113) are movably sleeved on the outer wall of the positioning rod (4113). A rectangular sliding opening (41) is provided on both the vibrating plate (419) and the vibrating plate (41113). 11) Both the first vibrating plate (419) and the second vibrating plate (41113) are movably fitted onto the outer wall of the sliding block (4112) through a rectangular sliding opening (4111). A filter box (4119) is fixedly installed on the top of the first vibrating plate (419), and a filter box (41111) is fixedly installed on the top of the second vibrating plate (41113). Large sieve holes are equidistantly opened on the inner wall of the first filter box (4119), and small sieve holes are opened on the outer wall of the second filter box (41111). The outer wall of the positioning rod (4113) is movably fitted with spring one (4114) and spring two (4115). One end of spring one (4114) is fixedly connected to the top of the inner wall of the screening box (414), and the other end of spring one (4114) is fixedly connected to vibrating plate one (419). One end of spring two (4115) is fixedly connected to the bottom of the inner wall of the screening box (414), and the other end of spring two (4115) is fixedly connected to vibrating plate two (41113).
2. The grinding and recovery box for a refractory material grinding device according to claim 1, characterized in that, Both the first vibrating plate (419) and the second vibrating plate (41113) have cam sliders (4118) fixedly installed at their bottoms. The outer wall of the first pulley (416) is fixedly connected to the first shaft (4116). The other end of the first shaft (4116) movably passes through the outer wall of the screening box (414) and extends into the interior of the screening box (414). The other end of the first shaft (4116) is rotatably connected to the inner wall of the screening box (414). The outer wall of the second pulley (417) is fixedly connected to the first shaft (4116). A second shaft (41112) is fixedly connected to the wall. The other end of the second shaft (41112) movably passes through the outer wall of the screening box (414) and extends into the interior of the screening box (414). The other end of the second shaft (41112) is rotatably connected to the inner wall of the screening box (414). A cam (4117) is fixedly sleeved on the outer walls of both the first shaft (4116) and the second shaft (41112). The cam (4117) is adapted to the cam slider (4118).