Ultrafine flour mill for calcium carbonate powder production

Abstract

The utility model relates to the related technical field of calcium carbonate powder production, in particular to a superfine pulverizer for calcium carbonate powder production, which comprises a bottom frame and a screening mechanism, the screening mechanism is arranged on one side of the surface of the bottom frame, and a crushing mechanism is arranged at one end of the bottom frame. According to the superfine grinding machine for calcium carbonate powder production, the screening mechanism is arranged and located on one side of the bottom frame, rotation of screening barrels is achieved through the sliding action of a rotating gear ring and a rack, and the screening barrels are divided into three layers, namely the first screening barrel, the second screening barrel and the third screening barrel; screening holes with different hole diameters are formed in the surfaces of the screening barrels, calcium carbonate is sequentially classified, small calcium carbonate can be left in the first screening barrel, medium calcium carbonate can fall into the second screening barrel through the screening holes, and the largest calcium carbonate can be separated out through the screening holes of the third screening barrel. The rack controls the rotating ring and the gear ring to swing back and forth through the air cylinder, and rotation of the screening barrel is achieved to assist calcium carbonate screening.

Description

Technical Field

[0001] The utility model relates to the technical field related to calcium carbonate powder production, in particular to an ultrafine grinding mill for calcium carbonate powder production. Background Art

[0002] Calcium carbonate is a chemical compound mainly composed of calcium, carbon and oxygen. It is widely present in nature, mainly in the form of limestone, calcite and marble. Calcium carbonate is a colorless crystal or white powder, commonly used in building materials, industrial fillers and food additives. In the production and processing of calcium carbonate, a grinder is needed to grind calcium carbonate into powder. With the continuous development of science and technology, the requirements for grinders are getting higher and higher. Therefore, there is a special need for an ultrafine grinder for the production of calcium carbonate powder.

[0003] However, the existing ultrafine grinding mills used for calcium carbonate powder production can crush the calcium carbonate entering the device, but when encountering a large amount of large-volume calcium carbonate, the existing mechanism cannot operate quickly. In addition, over a long period of time, the parts will cause the equipment to stop due to wear, which will eventually lead to a decrease in crushing efficiency, thereby affecting the grinding efficiency.

[0004] To solve the above problems, after searching, the patent with announcement number CN213590664U discloses an ultrafine grinding machine for producing calcium carbonate powder. The article proposes "including a grinding barrel, a working chamber is opened on the top of the grinding barrel, a grinding chamber is opened on the bottom of the inner wall of the working chamber, the inner cavity of the grinding chamber is provided with grinding balls, the outer wall of the grinding balls is provided with a plurality of first protrusions, the inner wall of the grinding chamber is provided with second protrusions, the inner cavity of the working chamber is provided with a crushing box, the inner cavity of the crushing box is provided with a plurality of steel balls, the bottom of the crushing box is provided with discharge holes, the top of the crushing box is provided with an annular connecting groove, and the inner cavity of the annular connecting groove is provided with a sealing component. The utility model utilizes a crushing box, steel balls, and a discharge hole to break up and discharge calcium carbonate blocks placed in the crushing box. Furthermore, because the crushing box and grinding balls rotate synchronously, the calcium carbonate blocks can be crushed and ground simultaneously, eliminating the need for workers to pre-crush the calcium carbonate blocks, thus improving work efficiency. While the device can crush calcium carbonate entering the device, existing mechanisms cannot operate quickly when handling large quantities of bulky calcium carbonate. Over time, parts can wear out, causing the equipment to stop, ultimately reducing crushing efficiency and affecting grinding efficiency.

[0005] In view of this, we conducted in-depth research on the above issues, which led to the present case. Utility Model Content

[0006] The purpose of the utility model is to provide an ultrafine grinding mill for producing calcium carbonate powder, so as to solve the problem that the existing ultrafine grinding mill for producing calcium carbonate powder proposed in the above background technology can crush the calcium carbonate entering the device, but when encountering a large amount of large-volume calcium carbonate, the existing mechanism cannot operate quickly, and over a long period of time, the parts thereof will cause the equipment to stop due to wear, which ultimately leads to a decrease in crushing efficiency, thereby affecting the grinding efficiency.

[0007] To achieve the above object, the utility model provides the following technical solution: an ultrafine grinding mill for producing calcium carbonate powder, comprising a base frame and a screening mechanism, wherein a screening mechanism is provided on one side of a surface of the base frame, and a crushing mechanism is provided at one end of the base frame;

[0008] The screening mechanism includes a feed port, a rotating groove, a first mounting groove, a rotating ring, a gear ring, a first screening barrel, a rack, a second screening barrel, a screening hole, a cylinder and a third screening barrel. One side of the base frame is connected to the feed port, the other side of the base frame is provided with a rotating groove, one side of the rotating groove is provided with a first mounting groove, a rotating ring is embedded in the interior of the rotating groove, a gear ring is installed on the surface of the rotating ring, one side of the rotating ring is fixedly connected to the first screening barrel, one side of the surface of the gear ring is meshed with a rack, the other side of the first screening barrel is threadedly connected to the second screening barrel, the surface of the first screening barrel is provided with a screening hole, one side of the rack is connected to the cylinder, and the other side of the second screening barrel is threadedly connected to the third screening barrel.

[0009] Preferably, the rack and the cylinder are both embedded in the first mounting groove, and the rotating ring forms a mutually rotating structure with the rotating groove through the gear ring, the rack and the cylinder.

[0010] Preferably, screening holes are provided on the surfaces of the second screening barrel and the third screening barrel, and the apertures of the screening holes in the first screening barrel, the second screening barrel and the third screening barrel are different.

[0011] Preferably, the crushing mechanism includes a second mounting groove, a collecting box, a connecting shaft, a discharge port, a belt, a crushing fan, a rotating door and a motor. A second mounting groove is provided on one side of the surface of the base frame, one end of the base frame is fixedly connected to the collecting box, the connecting shaft is embedded in the inside of the second mounting groove, and discharge ports are provided on both sides of the collection box. A belt is embedded in the surface of the connecting shaft, one end of the connecting shaft is fixedly connected to the crushing fan, a rotating door is installed at one end of the discharge port, and a motor is embedded on the other side of the belt.

[0012] Preferably, the rotating door and the collection box form a mutually rotating structure, and two groups of the rotating doors are provided in a single group of collection boxes.

[0013] Preferably, three groups of collecting boxes are provided, and the three groups of collecting boxes are aligned one by one with the first screening barrel, the second screening barrel and the third screening barrel respectively.

[0014] Preferably, the motor and the belt are embedded in the second mounting groove, and the main body of the motor is mounted on the chassis.

[0015] Preferably, there are six groups of crushing fans in total, and two groups of crushing fans are provided in a single group of collecting boxes and are aligned with each other.

[0016] Compared with the existing technology, the beneficial effect of the utility model is that the ultrafine grinding mill for the production of calcium carbonate powder, through the setting of the screening mechanism and the crushing mechanism, the screening mechanism can perform preliminary screening before the material enters the crushing mechanism, ensuring that only materials of appropriate size enter the crushing link, thereby improving the overall processing efficiency, meeting large-scale production needs, and increasing the flexibility of the mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a side view of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the partial sectional exploded structure of the screening mechanism of the utility model;

[0019] Figure 3 This is a schematic diagram of the partial sectional exploded structure of the crushing mechanism of the utility model;

[0020] Figure 4 For this utility model Figure 2 A in the middle is an enlarged structural diagram;

[0021] Figure 5 For this utility model Figure 2 Enlarged structural diagram at point B in the middle.

[0022] In the figure: 1. Base frame; 2. Screening mechanism; 201. Feed port; 202. Rotating trough; 203. First mounting slot; 204. Rotating ring; 205. Gear ring; 206. First screening barrel; 207. Rack; 208. Second screening barrel; 209. Screening hole; 210. Cylinder; 211. Third screening barrel; 3. Crushing mechanism; 301. Second mounting slot; 302. Collecting box; 303. Connecting shaft; 304. Discharge port; 305. Belt; 306. Crushing fan; 307. Rotating door; 308. Motor. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-5 The utility model provides a technical solution: an ultrafine grinding mill for producing calcium carbonate powder, comprising a base frame 1 and a screening mechanism 2, wherein the screening mechanism 2 is provided on one side of the surface of the base frame 1, and a crushing mechanism 3 is provided at one end of the base frame 1;

[0025] The screening mechanism 2 includes a feed port 201, a rotating groove 202, a first mounting groove 203, a rotating ring 204, a gear ring 205, a first screening barrel 206, a rack 207, a second screening barrel 208, a screening hole 209, a cylinder 210 and a third screening barrel 211. The feed port 201 is connected to one side of the base frame 1, and a rotating groove 202 is provided on the other side of the base frame 1. A first mounting groove 203 is provided on one side of the rotating groove 202, and a rotating ring 205 is embedded in the interior of the rotating groove 202. 04, a gear ring 205 is installed on the surface of the rotating ring 204, and a first screening barrel 206 is fixedly connected to one side of the rotating ring 204. A rack 207 is meshed on one side of the surface of the gear ring 205. The other side of the first screening barrel 206 is threadedly connected to the second screening barrel 208. A screening hole 209 is opened on the surface of the first screening barrel 206. A cylinder 210 is connected to one side of the rack 207. The other side of the second screening barrel 208 is threadedly connected to the third screening barrel 211. 01, the setting of the rotating groove 202, the first mounting groove 203, the rotating ring 204, the gear ring 205, the first screening barrel 206, the rack 207, the second screening barrel 208, the screening hole 209, the cylinder 210 and the third screening barrel 211, the screening mechanism 2 is located on one side of the chassis 1, and the rotation of the screening barrel is achieved by the sliding action of the rotating gear ring 205 and the rack 207. The screening barrel is divided into three layers, namely the first screening barrel 206, the second screening barrel 208 and the third screening barrel 211. 11. The surfaces of these screening barrels are provided with screening holes 209 of different apertures, which grade the calcium carbonate in turn. The smaller calcium carbonate will remain in the first screening barrel 206, the medium-sized calcium carbonate will fall into the second screening barrel 208 through the screening holes 209, and the largest calcium carbonate will be separated through the screening holes 209 of the third screening barrel 211. The rack 207 controls the back-and-forth swing of the rotating ring 204 and the gear ring 205 through the cylinder 210 to realize the rotation of the screening barrel to assist in the screening of calcium carbonate.

[0026] Furthermore, the rack 207 and the cylinder 210 are both embedded in the inside of the first mounting groove 203, and the rotating ring 204 forms a mutually rotating structure with the rotating groove 202 through the gear ring 205, the rack 207 and the cylinder 210. Through the setting of the gear ring 205 and the rack 207, the gear ring 205 and the rack 207 are engaged with each other to form a mutually rotating structure, so that the rotating ring 204 can rotate smoothly in the rotating groove 202. This rotation is the key to realizing the screening process. At the same time, the cylinder 210 applies force through the rack 207 to push the gear ring 205 to rotate, thereby driving the first screening barrel 206 to rotate. This power transmission enables the calcium carbonate to be effectively moved and screened in the screening barrel. Finally, the combination of the rack 207 and the cylinder 210 can adjust the swing speed of the rotating ring 204, thereby controlling the efficiency and effect of screening, so that the equipment can adapt to the screening needs of different calcium carbonates.

[0027] Furthermore, screening holes 209 are provided on the surfaces of the second screening barrel 208 and the third screening barrel 211. The apertures of the screening holes 209 in the first screening barrel 206, the second screening barrel 208 and the third screening barrel 211 are different. Through the setting of the screening holes 209, the different apertures of the screening holes 209 allow calcium carbonate of a specific size to pass through, thereby achieving effective separation of calcium carbonate, which enables the equipment to distinguish large particles from small particles. At the same time, by setting up multi-stage screening holes 209, calcium carbonate is screened step by step in multiple screening barrels, which can more comprehensively process calcium carbonate of various particle sizes and improve the overall screening efficiency. Finally, the screening holes 209 limit the flow of calcium carbonate, ensuring that only particles reaching a specific size can enter the next processing stage, thereby ensuring the quality of subsequent crushing or collection.

[0028] Furthermore, the crushing mechanism 3 includes a second mounting groove 301, a collection box 302, a connecting shaft 303, a discharge port 304, a belt 305, a crushing fan 306, a rotating door 307 and a motor 308. A second mounting groove 301 is provided on one side of the surface of the chassis 1, and the collection box 302 is fixedly connected to one end of the chassis 1. The connecting shaft 303 is embedded in the interior of the second mounting groove 301, and discharge ports 304 are provided on both sides of the collection box 302. The surface of the connecting shaft 303 is embedded with a belt 305, and one end of the connecting shaft 303 is fixedly connected to the crushing fan 306. A rotating door 307 is installed at one end of the discharge port 304. The other end of the belt 305 is fixedly connected to the crushing fan 306. A motor 308 is embedded on one side. Through the arrangement of the second mounting slot 301, the collecting box 302, the connecting shaft 303, the discharge port 304, the belt 305, the crushing fan 306, the rotating door 307 and the motor 308, after screening, the calcium carbonate of each particle is transmitted to the crushing mechanism 3 through the screening hole 209. The crushing fan 306 is driven by the motor 308 to crush the calcium carbonate. The crushed calcium carbonate passes into the bottom of the collecting box 302. When a certain amount of calcium carbonate is collected, the rotating door 307 is opened to collect the ground calcium carbonate. At the same time, the collecting box 302 corresponds to each screening barrel one by one to ensure the effective collection of calcium carbonate.

[0029] Furthermore, the rotating door 307 and the collection box 302 form a mutually rotating structure. Two groups of rotating doors 307 are provided in a single group of collection boxes 302. Through the setting of the rotating door 307, the rotating door 307 can accurately control the time and amount of crushed calcium carbonate flowing out of the collection box 302, ensuring the orderly processing of calcium carbonate. At the same time, when the rotating door 307 is closed, it can effectively prevent the leakage of calcium carbonate in the collection box 302, keep the equipment clean and improve work efficiency. Finally, by adjusting the opening degree of the rotating door 307, the operator can flexibly adjust the discharge speed of calcium carbonate according to actual needs to adapt to different production rhythms.

[0030] Furthermore, three groups of collecting boxes 302 are provided, and the three groups of collecting boxes 302 are aligned one by one with the first screening barrel 206, the second screening barrel 208 and the third screening barrel 211 respectively. Through the setting of the collecting boxes 302, the collecting boxes 302 are used to temporarily store the screened and crushed calcium carbonate to ensure that the calcium carbonate in the processing process is not leaked or scattered. At the same time, by setting a plurality of collecting boxes 302 corresponding to each screening barrel, the classified collection of calcium carbonate of different particle sizes can be achieved, which is convenient for subsequent processing or transportation. Finally, the collecting boxes 302 provide a buffer zone to balance the flow of calcium carbonate during the screening and crushing process to prevent overload or equipment blockage.

[0031] Furthermore, the motor 308 and the belt 305 are embedded in the second mounting groove 301, and the main body of the motor 308 is installed on the base frame 1. Through the setting of the motor 308, the motor 308 provides the necessary power to operate the crushing fan 306, thereby crushing the calcium carbonate. The speed of the motor 308 can be adjusted to control the working efficiency of the crushing fan 306 and the fineness of the calcium carbonate crushing to meet different production needs. Finally, the motor 308 is connected to the belt 305 to transmit power to other components to ensure the coordinated operation of the entire crushing mechanism 3.

[0032] Furthermore, there are six groups of crushing fans 306, and two groups of crushing fans 306 are provided in a single group of collecting boxes 302, and are aligned with each other. Through the setting of the crushing fans 306, the crushing fans 306 can effectively crush large particles of calcium carbonate into smaller sizes through the centrifugal force and impact force generated by high-speed rotation. The crushing fans 306 can be adjusted according to the characteristics of calcium carbonate to achieve the crushing of various types of calcium carbonate, thereby increasing the flexibility of the equipment.

[0033] Working principle: The screening mechanism 2 is located on one side of the chassis 1. The rotation of the screening barrel is achieved by rotating the gear ring 205 and the sliding action of the rack 207. The screening barrel is divided into three layers, namely the first screening barrel 206, the second screening barrel 208 and the third screening barrel 211. The surfaces of these screening barrels are provided with screening holes 209 of different apertures, which grade the calcium carbonate in turn. The smaller calcium carbonate will remain in the first screening barrel 206, the medium-sized calcium carbonate will fall into the second screening barrel 208 through the screening holes 209, and the largest calcium carbonate will pass through the screening holes 209 of the third screening barrel 211. The rack 207 controls the back and forth swing of the rotating ring 204 and the gear ring 205 through the cylinder 210 to realize the rotation of the screening barrel to assist in the screening of calcium carbonate. After screening, each particle of calcium carbonate is transmitted to the crushing mechanism 3 through the screening hole 209. The crushing fan 306 works under the drive of the motor 308 to crush the calcium carbonate. The crushed calcium carbonate enters the bottom of the collection box 302. When a certain amount of calcium carbonate is collected, the rotating door 307 is opened to collect the ground calcium carbonate. At the same time, the collection box 302 corresponds to each screening barrel one by one to ensure the effective collection of calcium carbonate.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An ultrafine grinding mill for producing calcium carbonate powder, comprising a base frame (1) and a screening mechanism (2), characterized in that: A screening mechanism (2) is provided on one side of the surface of the base frame (1), and a crushing mechanism (3) is provided at one end of the base frame (1); The screening mechanism (2) comprises a feed port (201), a rotating groove (202), a first mounting groove (203), a rotating ring (204), a gear ring (205), a first screening barrel (206), a rack (207), a second screening barrel (208), a screening hole (209), a cylinder (210) and a third screening barrel (211). One side of the base frame (1) is connected to the feed port (201), the other side of the base frame (1) is provided with a rotating groove (202), one side of the rotating groove (202) is provided with a first mounting groove (203), and the interior of the rotating groove (202) is fitted with a A rotating ring (204) is provided, a gear ring (205) is installed on the surface of the rotating ring (204), a first screening barrel (206) is fixedly connected to one side of the rotating ring (204), a rack (207) is meshed on one side of the surface of the gear ring (205), a second screening barrel (208) is threadedly connected to the other side of the first screening barrel (206), a screening hole (209) is provided on the surface of the first screening barrel (206), a cylinder (210) is connected to one side of the rack (207), and a third screening barrel (211) is threadedly connected to the other side of the second screening barrel (208).

2. A superfine grinding mill for producing calcium carbonate powder according to claim 1, characterized in that: The rack (207) and the cylinder (210) are both embedded in the first mounting groove (203), and the rotating ring (204) forms a mutually rotating structure with the rotating groove (202) through the gear ring (205), the rack (207) and the cylinder (210).

3. A superfine grinding mill for producing calcium carbonate powder according to claim 1, characterized in that: Screening holes (209) are provided on the surfaces of the second screening barrel (208) and the third screening barrel (211), and the apertures of the screening holes (209) are different in the first screening barrel (206), the second screening barrel (208), and the third screening barrel (211).

4. A superfine grinding mill for producing calcium carbonate powder according to claim 1, characterized in that: The crushing mechanism (3) comprises a second mounting groove (301), a collection box (302), a connecting shaft (303), a discharge port (304), a belt (305), a crushing fan (306), a rotating door (307) and a motor (308). A second mounting groove (301) is provided on one side of the surface of the base frame (1), one end of the base frame (1) is fixedly connected to the collection box (302), the connecting shaft (303) is engaged with the interior of the second mounting groove (301), the discharge port (304) is provided on both sides of the collection box (302), a belt (305) is engaged with the surface of the connecting shaft (303), one end of the connecting shaft (303) is fixedly connected to the crushing fan (306), one end of the discharge port (304) is installed with a rotating door (307), and the other side of the belt (305) is engaged with the motor (308).

5. A superfine grinding mill for producing calcium carbonate powder according to claim 4, characterized in that: The rotating door (307) and the collection box (302) form a mutually rotating structure, and two groups of the rotating door (307) are provided in a single group of collection boxes (302).

6. A superfine grinding mill for producing calcium carbonate powder according to claim 4, characterized in that: The collecting boxes (302) are provided in three groups, and the three groups of collecting boxes (302) are aligned with the first screening barrel (206), the second screening barrel (208), and the third screening barrel (211) respectively.

7. A superfine grinding mill for producing calcium carbonate powder according to claim 4, characterized in that: The motor (308) and the belt (305) are embedded in the second installation groove (301), and the main body of the motor (308) is installed on the base frame (1).

8. A superfine grinding mill for producing calcium carbonate powder according to claim 4, characterized in that: A total of six groups of the crushing fans (306) are provided, and two groups of the crushing fans (306) are provided in a single group of collecting boxes (302) and are aligned with each other.

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