Self-circulation sand mill

Abstract

The utility model is applicable to the technical field of sand mills, and provides a self-circulation sand mill which comprises a rack, a circulation tank and a pipeline, the circulation tank is mounted at the top of the rack, a conveying cavity and a grinding cavity which are communicated with each other are transversely arranged in the rack, and the top end of the conveying cavity is communicated with the bottom end of the circulation tank; the circulating tank is further communicated with a discharging port of the grinding cavity through a pipeline, a grinding rotor and a spiral conveying blade are installed on a main shaft in the rack, the grinding rotor is located in the grinding cavity, and the spiral conveying blade is located in the conveying cavity and used for sucking materials into the grinding cavity from the circulating tank through thrust generated by the spiral conveying blade while the grinding rotor completes grinding of the materials; according to the self-circulation type sand mill, an external circulating pump is omitted, the number of pipe orifices and the length of pipelines are greatly reduced, further, the loss of the pipelines is reduced, the leakage risk and the possibility of material blockage are reduced, meanwhile, after the circulating pump is omitted, corresponding electric control is reduced, energy can be saved, and the production cost can be reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of sand mills, and particularly relates to a self-circulating sand mill. Background Technology

[0002] Horizontal sand mills are high-efficiency wet ultrafine grinding and dispersing machines widely used in non-metallic mineral industries such as coatings, dyes, paints, inks, pharmaceuticals, magnetic powders, ferrites, photographic films, pesticides, papermaking, and cosmetics. Since the mill itself does not have the ability to circulate liquid materials, in common production scenarios, it usually needs to be used in conjunction with one or more material circulation tanks and a circulation pump to achieve multiple grinding and circulation grinding of the liquid slurry, resulting in a finer and more uniform grinding effect.

[0003] However, external circulating pumps require more inlets and longer pipelines, which not only increases pipeline losses but also increases the risk of material blockage and leakage. In addition, the extra components and electrical control points also increase the manufacturing cost of the product. Utility Model Content

[0004] The purpose of this utility model embodiment is to provide a self-circulating sand mill, which aims to convey materials through a built-in conveying mechanism to solve the problems existing in the background art.

[0005] This utility model embodiment is implemented as follows: a self-circulating sand mill includes a frame, a circulation tank, and pipes.

[0006] The circulation tank is installed on the top of the frame;

[0007] The frame has a horizontally connected conveying chamber and a grinding chamber, and the top of the conveying chamber is connected to the bottom of the circulation tank. The circulation tank is also connected to the discharge port of the grinding chamber through a pipe to facilitate the circulation of materials.

[0008] A main shaft is horizontally installed inside the frame, and a grinding rotor and a spiral conveyor blade are installed on the main shaft. The grinding rotor is located in the grinding chamber, and the spiral conveyor blade is located in the conveying chamber. The spiral conveyor blade is used to draw the material from the circulation tank into the grinding chamber while the grinding rotor completes the grinding of the material.

[0009] Preferably, the spindle is driven by a motor built into the frame, and the motor is electrically connected to an external controller to facilitate control of the cyclic process.

[0010] The present invention provides a self-circulating sand mill that eliminates the external circulation pump, significantly reducing the number of pipe openings and the length of the pipeline, thereby reducing pipeline losses, lowering the risk of leakage and the possibility of material blockage. At the same time, eliminating the circulation pump also reduces the corresponding electrical control, saving energy and reducing production costs. Attached Figure Description

[0011] Figure 1 A schematic diagram of the structure of a self-circulating sand mill provided in an embodiment of this utility model;

[0012] In the attached diagram: 1-frame; 2-grinding chamber; 3-grinding rotor; 4-pipeline; 5-circulation tank; 6-conveying chamber; 7-main shaft; 8-spiral conveyor blade. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0014] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0015] like Figure 1 The diagram shows a structure of a self-circulating sand mill according to an embodiment of the present invention, including a frame 1, a circulation tank 5, and a pipe 4. The circulation tank 5 is installed on the top of the frame 1. A conveying chamber 6 and a grinding chamber 2 are horizontally arranged inside the frame 1 and are interconnected. The top end of the conveying chamber 6 is connected to the bottom end of the circulation tank 5. The circulation tank 5 is also connected to the discharge port of the grinding chamber 2 through the pipe 4 to facilitate the circulation of materials. A main shaft 7 is horizontally installed inside the frame 1. A grinding rotor 3 and a spiral conveying blade 8 are installed on the main shaft 7. The grinding rotor 3 is located inside the grinding chamber 2, and the spiral conveying blade 8 is located inside the conveying chamber 6. The spiral conveying blade 8 is used to draw the material from the circulation tank 5 into the grinding chamber 2 while the grinding rotor 3 completes the grinding of the material.

[0016] In one embodiment of this utility model, the spindle 7 is driven by a motor built into the frame 1, and the motor is electrically connected to an external controller to facilitate control of the cyclic process.

[0017] In summary, the power drive main shaft 7 in the frame 1 drives the spiral conveyor blade 8 and the grinding rotor 3 to rotate. While the grinding rotor 3 completes the grinding of the material, the thrust generated by the spiral conveyor blade 8 draws the material from the circulation tank 5 into the grinding chamber 2, and at the same time, the material enters the circulation tank 5 from the outlet of the grinding chamber 2, thereby realizing automatic circulation.

[0018] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

[0019] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A self-circulating sand mill characterized by comprising: The machine frame, the circulating tank and the pipeline are included: The circulating tank is installed on the top of the machine frame; The conveying cavity and the grinding cavity are transversely arranged in the machine frame and are communicated with each other, the top end of the conveying cavity is communicated with the bottom end of the circulating tank, and the circulating tank is communicated with the discharging port of the grinding cavity through the pipeline, so that the material circulation movement is realized; The main shaft is transversely installed in the machine frame, the grinding rotor and the spiral conveying blade are installed on the main shaft, the grinding rotor is located in the grinding cavity, the spiral conveying blade is located in the conveying cavity, and the spiral conveying blade generates the thrust to draw the material from the circulating tank into the grinding cavity while the grinding rotor completes the grinding of the material.

2. A self-circulating sand mill according to claim 1, wherein The main shaft is driven by the motor which is built in the machine frame, and the motor is electrically connected with the external controller, so that the circulation process is controlled.

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