Split processing equipment for superfine nonmetallic minerals

Abstract

The utility model relates to the technical field of non-metallic mineral superfine grinding, and discloses a superfine non-metallic mineral split processing device which comprises a stirring type ball mill, the stirring type ball mill comprises a barrel and a discharging barrel in butt joint with a barrel flange, the discharging barrel is communicated with a powder concentrator through a powder discharging pipe, and the powder concentrator is communicated with the stirring type ball mill. The powder concentrator is communicated with a recovery pipeline and a finished product discharging pipeline, the recovery pipeline is communicated with a collecting hopper, a discharging port in the bottom of the collecting hopper is communicated with a barrel through a circulating pipeline, a transitional discharging barrel is arranged above the barrel of the stirring type ball mill, and when a grinding medium collides with fine powder particles, the fine powder particles are prone to being pushed and stirred; when the grinding machine is used, the grinding machine tends to move towards the discharging barrel, a large amount of fine powder and a small amount of coarse powder can enter the powder selecting device, the standing time of the fine powder in the barrel is shortened, and therefore the grinding efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of ultrafine grinding of non-metallic minerals, and in particular relates to ultrafine non-metallic mineral split processing equipment. Background Art

[0002] Ultrafine grinding can further refine non-metallic mineral particles, which helps to improve the performance and effect of products, such as improving the strength, hardness, wear resistance, corrosion resistance, etc. of materials. Ultrafine grinding can make non-metallic minerals have better dispersibility and fluidity, and improve their application performance. Traditional technologies use wet ball milling, high-pressure roller milling, air flow milling and other technologies to achieve ultrafine grinding of non-metallic minerals;

[0003] In the ultrafine grinding of non-metallic minerals, the grinding cylinder of the grinder is directly connected to the powder classifier through a pipeline, and an induced draft fan is arranged on the pipeline, and the powder classifier is introduced by negative pressure. In the process of grinding and introducing negative pressure into the powder classifier, the pipeline is directly connected to the grinding cylinder. Under the action of negative pressure, a large amount of finished materials that meet the particle size requirements and recycled materials that do not meet the particle size requirements are often introduced into the powder classifier, so that both fine powder and coarse powder are easily introduced into the powder classifier by negative pressure. Such introduction of powder selection requires a longer cycle grinding time, which results in higher energy consumption and may increase production costs. Utility Model Content

[0004] In order to make up for the shortcomings of the prior art and solve the problem that the powder selector is directly connected to the grinding cylinder through a pipeline, not only fine powder but also coarse powder is easily introduced into the powder selector during the negative pressure introduction process, which may increase the difficulty of particle size control, the utility model proposes an ultrafine non-metallic mineral separation processing equipment.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A superfine non-metallic mineral separation processing equipment includes a stirring ball mill, which includes a cylinder and a discharge cylinder connected to the cylinder flange, the discharge cylinder is connected to a powder selector through a powder discharge pipe, the powder selector is connected to a recovery pipe and a finished product discharge pipe, the recovery pipe is connected to a collecting hopper, and the discharge port at the bottom of the collecting hopper is connected to the cylinder through a circulation pipe.

[0007] Preferably, the top flange of the discharging barrel is connected to a motor bracket, a reduction motor is connected to the motor bracket, the output shaft of the reduction motor is drivingly connected to a coupling inside the motor bracket, and the output shaft of the coupling is drivingly connected to a stirring rod;

[0008] The stirring rod is provided with a spiral blade A located in the discharge barrel and a spiral blade B located in the barrel body.

[0009] Preferably, the cylinder is filled with grinding media, which are steel balls, chain beads, porcelain beads or glass beads, which provides flexibility for grinding different materials.

[0010] Preferably, the cylinder is embedded in the inner side of a chassis, and an inspection door is hinged on the chassis. The design of the inspection door allows maintenance personnel to easily enter the chassis, observe the cylinder, and promptly discover and deal with possible problems.

[0011] Preferably, the discharge barrel is located above the barrel, and is provided with a feeding pipe extending into the barrel. The flange on the feeding pipe is connected to a feed pipe. The feeding pipe extending into the barrel makes the material flow more smoothly and can be smoothly loaded into the barrel.

[0012] Preferably, a one-way valve is provided on the circulation pipeline and on the side close to the cylinder, a one-way valve is also provided on the side of the powder discharge pipe and close to the discharge cylinder, and an induced draft fan is provided at one end of the powder discharge pipe close to the powder selector. The design of the one-way valve allows the material to form an effective circulation, and the induced draft fan can provide air power to promote the circulation and flow of the material in the cylinder, reduce the possibility of material leakage and blockage, and make the equipment run more stable and reliable.

[0013] Compared with the prior art, the technical effects and advantages of the utility model are:

[0014] The ultrafine non-metallic mineral separation processing equipment sets a transition discharge barrel above the cylinder of the stirring ball mill. When the grinding medium collides with the fine powder particles, the fine powder particles are easily pushed and agitated and tend to move toward the discharge barrel. A large amount of fine powder and a small amount of coarse powder will enter the powder classifier, thereby improving the grinding efficiency. After further processing by the powder classifier, the fine powder and coarse powder can be classified to obtain a more accurate particle size distribution to meet the requirements of different products.

[0015] By reducing the residence time of fine powder in the cylinder and recycling coarse powder, the grinding time and energy consumption are reduced, and energy conservation is achieved. Through the action of the agitator, the contact opportunity between the material and the grinding medium is increased, the grinding uniformity is improved, and higher quality and more uniform ultrafine non-metallic mineral products can be obtained. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model from the first perspective;

[0017] Figure 2 It is a structural schematic diagram of the utility model from a second viewing angle;

[0018] Figure 3 This is a schematic diagram of the structure of the stirring ball mill of the utility model;

[0019] Figure 4 It is a schematic diagram of the internal structure of the stirring ball mill of the utility model.

[0020] In the figure: 1. stirring ball mill; 101. cylinder; 102. discharge cylinder; 103. motor bracket; 104. reduction motor; 105. coupling; 106. stirring rod; 107. spiral blade A; 108. spiral blade B; 109. loading pipe; 110. feeding pipe; 111. chassis; 112. inspection door; 2. powder discharge pipe; 3. powder selector; 4. recovery pipe; 5. finished product discharge pipe; 6. collecting hopper; 7. circulation pipe. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The following is combined with Figure 1-4 To further explain this application in detail,

[0023] The embodiment of the present application discloses an ultrafine non-metallic mineral separation processing equipment, including a stirring ball mill 1, the stirring ball mill 1 includes a cylinder 101 and a discharge cylinder 102 flange-connected to the cylinder 101, the discharge cylinder 102 is connected to a powder selector 3 through a powder discharge pipe 2, the powder selector 3 is connected to a recovery pipe 4 and a finished product discharge pipe 5, the recovery pipe 4 is connected to a collecting hopper 6, and the discharge port at the bottom of the collecting hopper 6 is connected to the cylinder 101 through a circulation pipe 7.

[0024] A transition discharge barrel 102 is arranged above the cylinder 101 of the stirring ball mill 1. During the efficient grinding process, a large amount of fine powder is more easily introduced into the discharge barrel 102, and a small amount of coarse powder will enter the discharge barrel 102. The powder selector 3 is connected with the discharge barrel 102 through the powder discharge pipe 2. Therefore, a large amount of fine powder and a small amount of coarse powder will enter the powder selector 3. Compared with the traditional technology of directly connecting the powder selector 3 and the cylinder 101 through a pipeline, the fine powder is more easily led into the discharge barrel 102 by the grinding effect, which helps to improve the grinding efficiency, reduce the grinding time and reduce the energy consumption. Only a small amount of coarse powder will enter the discharge barrel 102. After further processing by the powder selector 3, a more accurate particle size distribution can be obtained. The coarse powder passes through the recovery pipe 4 and the collection hopper 6, and then is connected with the cylinder 101 through the circulation pipe 7 for circulation grinding.

[0025] A large amount of fine powder is more easily introduced into the discharge barrel 102 because in the efficient grinding process, the fine powder has a smaller particle size, a higher surface area, and is more susceptible to the impact and friction of the grinding medium (such as steel balls). When the grinding medium collides with the fine powder particles, the fine powder particles are easily pushed and agitated, and tend to move toward the discharge barrel 102.

[0026] In addition, the fine powder particles have a smaller inertia and can adapt to the flow state more quickly after being impacted by the grinding media, thereby more easily entering the discharge barrel 102. In contrast, the coarse powder particles are larger, have a relatively smaller surface area, and have a relatively larger inertia, so they are not easily agitated and pushed by the grinding media, and are more difficult to enter the discharge barrel 102.

[0027] The top flange of the discharging barrel 102 is connected to a motor bracket 103, and a reduction motor 104 is connected to the motor bracket 103. The output shaft of the reduction motor 104 is connected to the coupling 105 inside the motor bracket 103, and the output shaft of the coupling 105 is connected to the stirring rod 106.

[0028] The stirring rod 106 is provided with a spiral blade A107 located in the discharge barrel 102 and a spiral blade B108 located in the barrel body 101 .

[0029] The cylinder 101 is filled with grinding media, which are steel balls, chain beads, porcelain beads or glass beads, which provides flexibility for grinding different materials.

[0030] A stirrer is arranged above the discharge barrel 102 and can extend into the discharge barrel 102 and the barrel body 101. The stirrer consists of a stirring rod 106, a spiral blade A107 and a spiral blade B108. The stirrer rotates at a certain speed to drive the grinding medium in the barrel body 101 to move. The grinding medium and the material make an overall multi-dimensional circulation motion and rotation motion in the barrel body, which increases the contact opportunity between the material and the grinding medium and improves the uniformity of grinding. Under the weight pressure of the grinding medium and the extrusion force generated by the spiral rotation, the material is effectively ground by friction, a small amount of impact extrusion and shearing, which helps to better mix the material with the grinding medium, thereby improving the grinding efficiency.

[0031] The cylinder 101 is embedded in the inner side of the chassis 111, and an inspection door 112 is hinged on the chassis 111. The design of the inspection door 112 allows maintenance personnel to easily enter the chassis 111, observe the cylinder 101, and promptly discover and deal with possible problems.

[0032] The discharge barrel 102 is located above the barrel 101 and is provided with a feeding pipe 109 extending into the barrel 101. The feeding pipe 110 is connected to the flange of the feeding pipe 109. The feeding pipe 109 extending into the barrel 101 allows the material to flow more smoothly and can be smoothly loaded into the barrel 101.

[0033] A one-way valve is provided on the circulation pipe 7 and located on the side close to the cylinder 101, and a one-way valve is also provided on the side of the powder discharge pipe 2 and close to the discharge cylinder 102. An induced draft fan is provided on the end of the powder discharge pipe 2 close to the powder selector 3. The design of the one-way valve allows the material to form an effective circulation, enhances the contact and grinding effect between the material and the grinding medium, and improves the grinding efficiency. The induced draft fan can provide air power to promote the circulation and flow of the material in the cylinder 101, reduce the possibility of material leakage and blockage, and make the equipment operation more stable and reliable.

[0034] When the ultrafine non-metallic mineral separation processing equipment is used, the non-metallic mineral raw materials to be processed are added into the barrel 101 of the stirring ball mill 1 through the feed pipe 110 and the loading pipe 109, and the agitator is started. Under the action of the reduction motor 104, the stirring rod 106 and the spiral blades A107 and B operate in the barrel 101, promoting the multi-dimensional circulation and rotation movement of the grinding medium. The material is effectively ground under the pressure, friction and a small amount of impact, extrusion and shearing of the grinding medium. After a certain period of grinding, the mixture of the material and the grinding medium passes through the discharge cylinder 102 and enters the powder selector 3 under the negative pressure of the induced draft fan. The powder selector 3 classifies the material through the classifier to screen out fine powder and coarse powder. The finished material that meets the particle size requirements, i.e., the fine powder, is collected through the finished product discharge pipe 5 and stored in the finished product collection area for packaging and sales. The recycled material that does not meet the particle size requirements, i.e., the coarse powder, enters the collection hopper 6 through the recovery pipe 4, and then is connected to the cylinder 101 again through the circulation pipe 7 to achieve cyclic grinding.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An ultra-fine non-metallic mineral separation processing equipment, characterized in that: The invention comprises a stirring type ball mill (1), wherein the stirring type ball mill (1) comprises a barrel (101) and a discharge barrel (102) connected to the barrel (101) by a flange, wherein the discharge barrel (102) is connected to a powder selector (3) via a powder discharge pipe (2), wherein a recovery pipe (4) and a finished product discharge pipe (5) are connected to the powder selector (3), wherein the recovery pipe (4) is connected to a collecting hopper (6), and a discharge port at the bottom of the collecting hopper (6) is connected to the barrel (101) via a circulation pipe (7).

2. The ultra-fine non-metallic mineral separation processing equipment according to claim 1 is characterized by: The top flange of the discharge barrel (102) is connected to a motor bracket (103), and a reduction motor (104) is connected to the motor bracket (103). The output shaft of the reduction motor (104) is connected to a coupling (105) inside the motor bracket (103), and the output shaft of the coupling (105) is connected to a stirring rod (106). The stirring rod (106) is provided with a spiral blade A (107) located in the discharge barrel (102) and a spiral blade B (108) located in the barrel (101).

3. The ultra-fine non-metallic mineral separation processing equipment according to claim 1 is characterized by: The cylinder (101) is embedded in the inner side of a machine case (111), and an inspection door (112) is hingedly connected to the machine case (111).

4. The ultra-fine non-metallic mineral separation processing equipment according to claim 1 is characterized by: The discharge barrel (102) is located above the barrel (101), and a feeding pipe (109) extending into the barrel (101) is provided on the discharge barrel (102), and a feeding pipe (110) is connected to a flange on the feeding pipe (109).

5. The ultra-fine non-metallic mineral separation processing equipment according to claim 1 is characterized by: The cylinder (101) is filled with grinding media.

6. The ultra-fine non-metallic mineral separation processing equipment according to claim 1 is characterized by: A one-way valve is provided on the circulation pipe (7) on a side close to the cylinder (101), a one-way valve is also provided on the powder discharge pipe (2) on a side close to the discharge cylinder (102), and an induced draft fan is provided on one end of the powder discharge pipe (2) close to the powder selector (3).

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