Heavy calcium carbonate powder grinding device and method

Abstract

The invention discloses a ground calcium carbonate powder grinding device and method.The ground calcium carbonate powder grinding device comprises a machining box and a grinding mechanism, a feeding port is formed in the top of the machining box, and a smashing cavity, a material guiding cavity, a first-stage grinding cavity and a second-stage grinding cavity are sequentially formed in the machining box; the grinding mechanism comprises a crushing end, a material returning end, a first-stage grinding end and a second-stage grinding end; the crushing end is arranged in the crushing chamber and used for crushing materials, a material guide plate is arranged between the crushing chamber and the first-stage grinding chamber, a screen is arranged on the material guide plate, and the material return end is used for enabling the screened materials to flow back into the crushing chamber. And a monitoring end for monitoring material falling is further arranged in the crushing chamber. The ground calcium carbonate grinding device has the beneficial effects that the technical problems that in the prior art, a ground calcium carbonate grinding device is low in grinding efficiency and single in grinding mode, so that ground calcium carbonate cannot be powdered, and the final product quality is affected are solved.

Description

Technical Field

[0001] The invention relates to the technical field of heavy calcium carbonate powder processing equipment, and in particular to a heavy calcium carbonate powder grinding processing device and method. Background Art

[0002] Heavy calcium carbonate, referred to as heavy calcium, is made by grinding natural carbonate minerals such as calcite, marble, and limestone. It is a commonly used powdered inorganic filler. Before being processed, the heavy calcium carbonate powder is in a large block because its particles are bonded to each other. During processing, the bonded and blocky heavy calcium carbonate powder needs to be ground by a grinding device to make its particles uniform and non-bonded.

[0003] In the Chinese invention patent document CN109174414B, a "calcium carbonate powder grinding method" is proposed. The device delivers calcium carbonate to the crushing area in the grinding device through a spiral feeder, and crushes it in the crushing area by the crushing device. After the calcium carbonate is crushed, it enters the first grinding area and is ground by the first grinding device, and then enters the second grinding area and is ground by the second grinding device, and finally enters the storage area for storage. In the process of calcium carbonate from the crushing area to the storage area, the heater heats the air and enters the crushing area, the first grinding area, the second grinding area and the storage area to heat and dry the calcium carbonate. The present invention dries the calcium carbonate during the crushing and grinding process, which can ensure that the calcium carbonate powder will not leak out, and can collect the calcium carbonate in grades;

[0004] In the Chinese utility model patent CN218796372U, a "calcium carbonate powder grinder with adjustable powder degree" is proposed. The device includes a tank shell, a motor is fixedly installed near the middle position of the upper outer surface of the tank shell, a rotating column is fixedly connected to the output end of the motor, a grinding block is fixedly connected to the outer surface of the lower end of the rotating column, a lifting block is movably connected to the inner circular surface of the tank shell, a perforated plate is fixedly connected to the inner circular surface of the lifting block near the lower end, a threaded rod is rotatably connected to the position near the left side of the lower inner surface of the lifting block, and a telescopic plate is fixedly installed on the outer surface of the lower end of the lifting block near the threaded rod. The calcium carbonate powder grinder with adjustable powder degree has the advantages of adjustable powder degree and screening, which solves the problem of unadjustable powder degree and single application scene; the above two documents both propose a grinding method for heavy calcium carbonate, but the grinding device of the prior art has low grinding efficiency for heavy calcium carbonate, and the grinding means often only has a single grinding method. At the same time, during the grinding process, the equipment intelligence is poor, which invisibly reduces the working efficiency of the entire grinding device, resulting in poor quality of the ground finished product of heavy calcium carbonate. Summary of the invention

[0005] The purpose of the present invention is to overcome the above-mentioned technical deficiencies and provide a heavy calcium carbonate powder grinding processing device and method to solve the technical problem that the grinding device for heavy calcium carbonate in the prior art has low grinding efficiency and a relatively single grinding method, resulting in the heavy calcium carbonate being unable to be powdered, thus affecting the quality of the final product.

[0006] In order to achieve the above technical objectives, the present invention adopts the following technical solutions:

[0007] In a first aspect, the present invention provides a heavy calcium carbonate powder grinding and processing device, comprising:

[0008] A processing box, wherein a feed inlet is provided at the top of the processing box, and a crushing chamber, a material guiding chamber, a primary grinding chamber and a secondary grinding chamber are sequentially provided inside the processing box;

[0009] The grinding mechanism includes a crushing end, a return end, a primary grinding end and a secondary grinding end; the crushing end is arranged in the crushing chamber and is used to crush the material, a guide plate is arranged between the crushing chamber and the primary grinding chamber, and a screen is arranged on the guide plate, the return end is used to return the screened material to the crushing chamber, and a monitoring end for monitoring the falling of the material is also arranged in the crushing chamber, the primary grinding end is arranged in the primary grinding chamber, the secondary grinding end is arranged in the secondary grinding chamber, and a cabinet door is installed on the front of the processing box.

[0010] In some embodiments, the crushing end includes a first motor, two first shafts, two first gears and two crushing wheels; the first motor is arranged on the back of the processing box, the two first shafts are axially arranged in the crushing chamber, and the two first gears are installed on the two first shafts, and the two first gears are meshed with each other, one of the first shafts is connected to the output end of the first motor, and the crushing wheels are installed on the two first shafts and located in the crushing chamber, and the two crushing wheels are located below the feed port.

[0011] In some embodiments, the return material end includes a second motor, a second shaft and spiral blades; the second motor is installed above the processing box, the output end of the second motor is connected to the second shaft, the second shaft is axially arranged in the material guide chamber, and the outer periphery of the second shaft is provided with spiral blades.

[0012] In some embodiments, the crushing chamber is communicated with the material guiding chamber and the primary grinding chamber respectively, and the primary grinding chamber is communicated with the secondary grinding chamber.

[0013] In some embodiments, the monitoring end includes an infrared transmitter and an infrared receiver, and the infrared transmitter and the infrared receiver are both installed in the pulverizing chamber and located above the guide plate.

[0014] In some embodiments, the guide plate includes a first inclined plate, a second inclined plate and a third inclined plate; the first inclined plate is arranged below the crushing end, and a screen is installed on the first inclined plate, the second inclined plate is arranged below the first inclined plate, and the third inclined plate is arranged below the second inclined plate and extends into the secondary grinding chamber.

[0015] In some embodiments, the first-level grinding end includes a third motor, a plurality of third shafts, a plurality of third gears, a tooth chain and a plurality of grinding rollers; the third motor is arranged outside the processing box, and a plurality of the third shafts are arranged obliquely and equidistantly on the second inclined plate, a plurality of the third shafts are mounted with a plurality of the grinding rollers, one end of the third shaft extends to the outside of the processing box and is connected to a plurality of the third gears, a plurality of the third gears are transmission-connected with the tooth chain, and any one of the third shafts is connected to the output end of the third motor.

[0016] In some embodiments, the grinding mechanism also includes a pushing end, which includes a plurality of electric telescopic rods and a push plate. The plurality of electric telescopic rods are arranged on the inner wall of the processing box, and the push plate is connected to the telescopic end of any one of the electric telescopic rods, and the push plate is used to push the material on the third inclined plate.

[0017] In some embodiments, the secondary grinding end includes a fourth motor, a fourth shaft, a connecting frame and a grinding wheel; the fourth motor is arranged outside the processing box, the output end of the fourth motor is connected to the fourth shaft, the fourth shaft extends into the secondary grinding chamber, and the fourth shaft is provided with the connecting frame, the grinding wheel is rotatably connected to the connecting frame, the cross-section of the secondary grinding chamber is circular, a plurality of discharge holes are opened at the bottom of the secondary grinding chamber, and a receiving frame is arranged below the discharge holes.

[0018] In some embodiments, S1, introducing the material from the feed port into the crushing chamber inside the processing box, and starting the crushing end;

[0019] S2. The crushed materials are screened by the screen on the guide plate. Unqualified materials enter the guide chamber and are reintroduced into the crushing chamber through the return end. Qualified materials enter the primary grinding chamber and are ground by the primary grinding mechanism.

[0020] S3, wherein a monitoring end is provided in the crushing chamber to monitor whether there is material falling. If no material falling is detected, it is determined that no new material will be put into the processing box, and the crushing end and the return end are closed at this time;

[0021] S4. The materials pass through the grinding end of the primary grinding mechanism and enter the secondary grinding chamber, where they are further ground by the secondary grinding end. After grinding, they are collected by the staff.

[0022] Compared with the prior art, the present invention provides a heavy calcium carbonate powder grinding processing device and method, wherein the material is introduced from the feed port into the crushing chamber inside the processing box, and the crushing end is started; the crushed material is screened by the screen on the guide plate, unqualified material enters the guide chamber, and is re-introduced into the crushing chamber through the return end, and qualified material enters the primary grinding chamber and is ground by the primary grinding mechanism, wherein a monitoring end is provided in the grinding chamber to monitor whether there is material falling. If no material falling is detected, it is determined that no new material will be put into the processing box, and the crushing end and the return end are closed at this time; the material passes through the grinding end of the primary grinding mechanism and enters the secondary grinding chamber, and is further ground by the secondary grinding end, and is collected by the staff after grinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is an internal schematic diagram of a heavy calcium carbonate powder grinding and processing device provided in an embodiment of the present invention;

[0024] Figure 2 It is a schematic diagram of the grinding mechanism structure of the heavy calcium carbonate powder grinding processing device provided in an embodiment of the present invention;

[0025] Figure 3 It is a schematic diagram of the installation of a guide plate of a heavy calcium carbonate powder grinding and processing device provided in an embodiment of the present invention;

[0026] Figure 4 It is a schematic diagram of the back side of the heavy calcium carbonate powder grinding and processing device provided by an embodiment of the present invention;

[0027] Figure 5 It is a schematic diagram of the process of the heavy calcium carbonate powder grinding processing device provided in an embodiment of the present invention.

[0028] Description of reference numerals: 1. processing box; 11. feeding port; 12. crushing chamber; 13. material guiding chamber; 14. primary grinding chamber; 15. secondary grinding chamber; 2. grinding mechanism; 21. crushing end; 211. first motor; 212. first shaft; 213. first gear; 214. crushing wheel; 22. return end; 221. second motor; 222. second shaft; 223. spiral blade; 23. monitoring end; 231. infrared transmitter; 232. infrared receiver; 24. Primary grinding end; 241. Third motor; 242. Third shaft; 243. Third gear; 244. Tooth chain; 245. Grinding roller; 25. Pushing end; 251. Electric telescopic rod; 252. Pushing plate; 26. Secondary grinding end; 261. Fourth motor; 262. Fourth shaft; 263. Connecting frame; 264. Grinding wheel; 27. Guide plate; 271. First inclined plate; 2711. Screen; 272. Second inclined plate; 273. Third inclined plate; 3. Material receiving frame. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0030] In order to solve the technical problem that the grinding device for heavy calcium carbonate in the prior art has low grinding efficiency and a relatively single grinding method, resulting in the inability to form heavy calcium carbonate into powder, thus affecting the quality of the final product, the present invention provides a heavy calcium carbonate powder grinding and processing device, which can improve the grinding efficiency of heavy calcium carbonate and achieve the technical effect of improving product quality.

[0031] It should be noted that the heavy calcium carbonate powder grinding and processing device described in the present invention is used for but not limited to the heavy calcium carbonate processing field, etc. For the convenience of explanation, in the present invention, only the application of the heavy calcium carbonate powder grinding and processing device in the heavy calcium carbonate processing field is used as an example for explanation, and the principle of applying the heavy calcium carbonate powder grinding and processing device to other types of equipment is essentially the same as the principle applied to the heavy calcium carbonate processing field, which will not be repeated here.

[0032] See also Figure 1 , Figure 1The present invention is a schematic structural diagram of a heavy calcium carbonate powder grinding and processing device in an embodiment of the present invention. The heavy calcium carbonate powder grinding and processing device comprises a processing box 1 and a grinding mechanism 2. A feed inlet 11 is provided on the top of the processing box 1, and a crushing chamber 12, a guide chamber 13, a primary grinding chamber 14 and a secondary grinding chamber 15 are sequentially provided inside the processing box 1; the grinding mechanism 2 comprises a crushing end 21, a return end 22, a primary grinding end 24 and a secondary grinding end 26; the crushing end 21 is arranged in the crushing chamber 12 and is used to crush the material, a guide plate 27 is provided between the crushing chamber 12 and the primary grinding chamber 14, and a screen 2711 is provided on the guide plate 27, the return end 22 is used to return the screened material to the crushing chamber 12, and a monitoring end 23 for monitoring the falling of the material is also provided in the crushing chamber 12, the primary grinding end 24 is arranged in the primary grinding chamber 14, the secondary grinding end 26 is arranged in the secondary grinding chamber 15, and a cabinet door is installed on the front of the processing box 1.

[0033] In this embodiment, the material is introduced from the feed port 11 into the crushing chamber 12 inside the processing box 1, and the crushing end 21 is started; the crushed material is screened by the screen 2711 on the guide plate 27, and unqualified materials enter the guide chamber 13, and are re-introduced into the crushing chamber 12 through the return end 22, and qualified materials enter the primary grinding chamber 14 and are ground by the primary grinding mechanism 2. A monitoring end 23 is set in the crushing chamber 12 to monitor whether there is material falling. If no material falling is detected, it is determined that no new material will be added to the processing box 1. At this time, the crushing end 21 and the return end 22 are closed; the material passes through the grinding end of the primary grinding mechanism 2 and enters the secondary grinding chamber 15, and is further ground by the secondary grinding end 26. After grinding, it is collected by the staff.

[0034] In one embodiment, see Figure 1 - Figure 3 In order to improve the crushing efficiency of the crushing end 21, the crushing end 21 includes a first motor 211, two first shafts 212, two first gears 213 and two crushing wheels 241; the first motor 211 is arranged on the back of the processing box 1, the two first shafts 212 are axially arranged in the crushing chamber 12, and the two first gears 213 are installed on the two first shafts 212, and the two first gears 213 are meshed with each other, one of the first shafts 212 is connected to the output end of the first motor 211, and crushing wheels 241 are installed on the two first shafts 212 and located in the crushing chamber 12, and the two crushing wheels 241 are located below the feed port 11.

[0035] In this embodiment, the material enters the box from the feed port 11 and falls into the crushing chamber 12. At this time, the first motor 211 is started, and the first motor 211 drives one of the first shafts 212 to operate. The first gears 213 on the two first shafts 212 cooperate with each other to synchronously drive the two first shafts 212 to rotate. The two first shafts 212 drive the two crushing wheels 241 to operate in the crushing chamber 12, and are used to crush the block materials and drop them downward.

[0036] In one embodiment, see Figure 2 and Figure 3 , further improving the crushing efficiency, the return end 22 includes a second motor 221, a second shaft 222 and a spiral blade 223; the second motor 221 is installed above the processing box 1, and the output end of the second motor 221 is connected to the second shaft 222, the second shaft 222 is axially arranged in the material guide chamber 13, and the outer periphery of the second shaft 222 is provided with a spiral blade 223, the crushing chamber 12 is respectively communicated with the material guide chamber 13 and the primary grinding chamber 14, and the primary grinding chamber 14 is communicated with the secondary grinding chamber 15.

[0037] In this embodiment, the crushed material will fall onto the guide plate 27 and be screened by the screen 2711. The qualified ones will enter the primary crushing chamber 12, and the unqualified ones will enter the guide chamber 13. The second motor 221 will drive the second shaft 222 to operate, and the second shaft 222 will drive the spiral blade 223 to guide the material, so that it will re-enter the crushing chamber 12 and be crushed twice or multiple times by the crushing end 21 until it passes through the screen 2711.

[0038] In one embodiment, see Figure 1 and Figure 3 To avoid energy waste, the monitoring end 23 includes an infrared transmitter 231 and an infrared receiver 232. The infrared transmitter 231 and the infrared receiver 232 are both installed in the crushing chamber 12 and located above the guide plate 27. The guide plate 27 includes a first inclined plate 271, a second inclined plate 272 and a third inclined plate 273. The first inclined plate 271 is arranged below the crushing end 21, and a screen 2711 is installed on the first inclined plate 271. The second inclined plate 272 is arranged below the first inclined plate 271. The third inclined plate 273 is arranged below the second inclined plate 272 and extends into the secondary grinding chamber 15.

[0039] In this embodiment, an infrared transmitter 231 and an infrared receiver 232 are installed in the crushing chamber 12. When the infrared receiver 232 cannot receive infrared light, it indicates that the crushing chamber 12 is still crushing the material. When the infrared receiver 232 receives infrared light, it indicates that there is no material in the crushing chamber 12. At this time, the equipment automatically closes the crushing end 21 and the return end 22 to avoid waste of resources. A first inclined plate 271 is set in the processing box 1 to guide the material from the crushing chamber 12 into the material guide chamber 13, a second inclined plate 272 is set to cooperate with the first grinding end 24, and a third inclined plate 273 is set to guide the material into the second crushing chamber 12.

[0040] In one embodiment, see Figure 1 - Figure 4 In order to improve the grinding efficiency of the primary grinding end 24 and the secondary grinding end 26, the primary grinding end 24 includes a third motor 241, a plurality of third shafts 242, a plurality of third gears 243, a tooth chain 244 and a plurality of grinding rollers 245; the third motor 241 is arranged outside the processing box 1, and the plurality of third shafts 242 are arranged at an angle and equidistantly on the second inclined plate 272, a plurality of grinding rollers 245 are installed on the plurality of third shafts 242, one end of the third shaft 242 extends to the outside of the processing box 1 and is connected to a plurality of third gears 243, and a tooth chain 244 is transmission-connected between the plurality of third gears 243, wherein any one of the third shafts 242 is connected to the output end of the third motor 241, and the grinding mechanism 2 also includes a pushing end 25, and the pushing end 25 includes a plurality of electric telescopic rods 251 and A push plate 252 and a plurality of electric telescopic rods 251 are arranged on the inner wall of the processing box 1, and a push plate 252 is connected to the telescopic end of any electric telescopic rod 251, and the push plate 252 is used to push the material on the third inclined plate 273. The secondary grinding end 26 includes a fourth motor 261, a fourth shaft 262, a connecting frame 263 and a grinding wheel 264; the fourth motor 261 is arranged outside the processing box 1, and the output end of the fourth motor 261 is connected to the fourth shaft 262, and the fourth shaft 262 extends into the secondary grinding chamber 15, and a connecting frame 263 is arranged on the fourth shaft 262, and a grinding wheel 264 is rotatably connected to the connecting frame 263, and the cross-section of the secondary grinding chamber 15 is circular, and a plurality of discharge holes are opened at the bottom of the secondary grinding chamber 15, and a receiving frame 3 is arranged below the discharge holes.

[0041] In this embodiment, when the crushed material is screened by the screen 2711 and falls onto the second inclined plate 272, the third motor 241 is started, and the third motor 241 drives the third shaft 242 to operate. The third shaft 242 is equipped with a third gear 243, and a plurality of third gears 243 are provided with a toothed chain 244. The third gear 243 and the toothed chain 244 cooperate to drive the plurality of third shafts 242 to operate, thereby causing the grinding roller 245 on the second inclined plate 272 to rotate, and the grinding roller 245 is used to grind the third shaft 242 to rotate. The material on the second inclined plate 272 is ground once, and the ground material falls onto the third inclined plate 273. At this time, the electric telescopic rod 251 and the push plate 252 cooperate to push the material into the secondary grinding chamber 15. At this time, the fourth motor 261 is started, and the fourth motor 261 drives the fourth shaft 262 to operate. The fourth shaft 262 cooperates with the connecting frame 263 to drive the grinding wheel 264 to grind the material for the second time in the secondary crushing chamber 12. The ground powder falls into the receiving frame 3 through the discharge hole for centralized collection.

[0042] In order to better understand the present invention, the following Figures 1 to 5 The technical solution of the present invention is described in detail:

[0043] S1. Pour the material from the feed port 11 into the crushing chamber 12 inside the processing box 1. The material enters the box from the feed port 11 and falls into the crushing chamber 12. At this time, the first motor 211 is started, and the first motor 211 drives one of the first shafts 212 to operate. The first gears 213 on the two first shafts 212 cooperate with each other to synchronously drive the two first shafts 212 to rotate. The two first shafts 212 drive the two crushing wheels 241 to operate in the crushing chamber 12, and are used to crush the block materials and drop them downwards.

[0044] S2. The crushed materials will fall onto the guide plate 27 and be screened by the screen 2711. The qualified materials will enter the primary crushing chamber 12, and the unqualified materials will enter the guide chamber 13. The second motor 221 will drive the second shaft 222 to operate, and the second shaft 222 will drive the spiral blade 223 to guide the materials, so that the materials will re-enter the crushing chamber 12 and be crushed twice or multiple times by the crushing end 21 until they pass the screen 2711.

[0045] S3. An infrared transmitter 231 and an infrared receiver 232 are installed in the crushing chamber 12. When the infrared receiver 232 cannot receive infrared light, it indicates that the crushing chamber 12 is still crushing the material. When the infrared receiver 232 receives infrared light, it indicates that there is no material in the crushing chamber 12. At this time, the equipment automatically closes the crushing end 21 and the return end 22 to avoid waste of resources. A first inclined plate 271 is set in the processing box 1 to guide the material from the crushing chamber 12 into the material guide chamber 13, a second inclined plate 272 is set to cooperate with the primary grinding end 24, and a third inclined plate 273 is set to guide the material into the secondary crushing chamber 12.

[0046] S4. When the crushed material is screened by the screen 2711 and falls onto the second inclined plate 272, the third motor 241 is started, and the third motor 241 drives the third shaft 242 to operate. The third shaft 242 is equipped with a third gear 243, and a plurality of third gears 243 are provided with a toothed chain 244. The gears and the toothed chain 244 cooperate to drive the plurality of third shafts 242 to operate, so that the grinding roller 245 on the second inclined plate 272 rotates, and the grinding roller 245 exerts pressure on the second inclined plate 272. The material on 72 is ground once, and the ground material falls onto the third inclined plate 273. At this time, the electric telescopic rod 251 and the push plate 252 cooperate to push the material into the secondary grinding chamber 15. At this time, the fourth motor 261 is started, and the fourth motor 261 drives the fourth shaft 262 to operate. The fourth shaft 262 cooperates with the connecting frame 263 to drive the grinding wheel 264 to grind the material for the second time in the secondary crushing chamber 12. The ground powder falls into the receiving frame 3 through the discharge hole for centralized collection.

[0047] The specific implementation of the present invention described above does not constitute a limitation on the protection scope of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A heavy calcium carbonate powder grinding and processing device, characterized in that, include: A processing box, wherein a feed inlet is provided at the top of the processing box, and a crushing chamber, a material guiding chamber, a primary grinding chamber and a secondary grinding chamber are sequentially provided inside the processing box; The grinding mechanism includes a crushing end, a return end, a primary grinding end and a secondary grinding end; the crushing end is arranged in the crushing chamber and is used to crush the material, a guide plate is arranged between the crushing chamber and the primary grinding chamber, and a screen is arranged on the guide plate, the return end is used to return the screened material to the crushing chamber, and a monitoring end for monitoring the falling of the material is also arranged in the crushing chamber, the primary grinding end is arranged in the primary grinding chamber, the secondary grinding end is arranged in the secondary grinding chamber, and a cabinet door is installed on the front of the processing box.

2. A heavy calcium carbonate powder grinding and processing device according to claim 1, characterized in that: The crushing end includes a first motor, two first shafts, two first gears and two crushing wheels; the first motor is arranged on the back of the processing box, the two first shafts are axially arranged in the crushing chamber, and the two first gears are installed on the two first shafts, and the two first gears are meshed with each other, one of the first shafts is connected to the output end of the first motor, and the crushing wheels are installed on the two first shafts and located in the crushing chamber, and the two crushing wheels are located below the feed port.

3. A heavy calcium carbonate powder grinding and processing device according to claim 1, characterized in that: The return material end includes a second motor, a second shaft and spiral blades; the second motor is installed above the processing box, the output end of the second motor is connected to the second shaft, the second shaft is axially arranged in the material guide chamber, and the outer periphery of the second shaft is provided with spiral blades.

4. A heavy calcium carbonate powder grinding and processing device according to claim 1, characterized in that: The pulverizing chamber is communicated with the material guiding chamber and the primary grinding chamber respectively, and the primary grinding chamber is communicated with the secondary grinding chamber.

5. A heavy calcium carbonate powder grinding and processing device according to claim 1, characterized in that: The monitoring end comprises an infrared transmitter and an infrared receiver, and both the infrared transmitter and the infrared receiver are installed in the pulverizing chamber and located above the material guide plate.

6. A heavy calcium carbonate powder grinding and processing device according to claim 1, characterized in that: The guide plate includes a first inclined plate, a second inclined plate and a third inclined plate; the first inclined plate is arranged below the crushing end, and a screen is installed on the first inclined plate, the second inclined plate is arranged below the first inclined plate, and the third inclined plate is arranged below the second inclined plate and extends into the secondary grinding chamber.

7. A heavy calcium carbonate powder grinding and processing device according to claim 6, characterized in that: The first-level grinding end includes a third motor, a plurality of third shafts, a plurality of third gears, a tooth chain and a plurality of grinding rollers; the third motor is arranged outside the processing box, and a plurality of the third shafts are arranged obliquely and equidistantly on the second inclined plate, a plurality of the third shafts are mounted with a plurality of the grinding rollers, one end of the third shaft extends to the outside of the processing box and is connected to a plurality of the third gears, a plurality of the third gears are transmission-connected with the tooth chain, and any one of the third shafts is connected to the output end of the third motor.

8. A heavy calcium carbonate powder grinding and processing device according to claim 6, characterized in that: The grinding mechanism also includes a pushing end, which includes a plurality of electric telescopic rods and a pushing plate. The plurality of electric telescopic rods are arranged on the inner wall of the processing box. The pushing plate is connected to the telescopic end of any one of the electric telescopic rods, and the pushing plate is used to push the material on the third inclined plate.

9. A heavy calcium carbonate powder grinding and processing device according to claim 6, characterized in that: The secondary grinding end includes a fourth motor, a fourth shaft, a connecting frame and a grinding wheel; the fourth motor is arranged outside the processing box, the output end of the fourth motor is connected to the fourth shaft, the fourth shaft extends into the secondary grinding chamber, and the fourth shaft is provided with the connecting frame, the grinding wheel is rotatably connected to the connecting frame, the cross-section of the secondary grinding chamber is circular, a plurality of discharge holes are provided at the bottom of the secondary grinding chamber, and a receiving frame is provided below the discharge holes.

10. A method for grinding and processing heavy calcium carbonate powder, applicable to the grinding and processing device for heavy calcium carbonate powder as claimed in any one of claims 1 to 9, characterized in that: The steps include: S1. Pour the material from the feed port into the crushing chamber inside the processing box and start the crushing end; S2. The crushed materials are screened by the screen on the guide plate. Unqualified materials enter the guide chamber and are reintroduced into the crushing chamber through the return end. Qualified materials enter the primary grinding chamber and are ground by the primary grinding mechanism. S3, wherein a monitoring end is provided in the crushing chamber to monitor whether there is material falling. If no material falling is detected, it is determined that no new material will be put into the processing box, and the crushing end and the return end are closed at this time; S4. The materials pass through the grinding end of the primary grinding mechanism and enter the secondary grinding chamber, where they are further ground by the secondary grinding end. After grinding, they are collected by the staff.

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