High-purity quartz sand magnetic separation device

Abstract

The utility model discloses a high-purity quartz sand magnetic separation device, which belongs to the field of quartz sand purification, and comprises a tank body, a central shaft is arranged in the tank body, a first spiral piece is arranged in the tank body, a feeding hole is formed in the top of the tank body, a second spiral piece is arranged between the central shaft and the inner wall of the tank body, and the second spiral piece is arranged in the tank body. The second spiral part is located below the first spiral part, a plurality of through grooves are formed in the first spiral part, a quartz sand flowing cavity is defined by the top of the first spiral part, the center shaft and the inner wall of the tank body, and internal magnetic metal impurities are adsorbed through the first spiral part when high-purity quartz sand slides. The magnetic metal impurities can be driven to slide along with flowing of the high-purity quartz sand, and the magnetic metal impurities fall into the through groove and enter the metal impurity flowing cavity, so that the problem that the magnetic metal impurities flow out along with flowing of the high-purity quartz sand is solved, and the high-purity quartz sand magnetic separation and purification effect is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of quartz sand purification, and particularly relates to a magnetic separation device for high-purity quartz sand. Background Technique

[0002] The unique physical and chemical properties of high-purity quartz sand make it play a crucial role in the fields of aviation, aerospace, electronics, machinery, and the rapidly developing IT industry today. Especially its internal molecular chain structure, crystal shape, and lattice change law endow it with high temperature resistance, small thermal expansion coefficient, high insulation, corrosion resistance, piezoelectric effect, resonance effect, and its unique optical properties, which are playing an increasingly important role in many high-tech products. And the magnetic separation device for high-purity quartz sand is a key equipment specifically used for purifying quartz sand. Through the action of a strong magnetic field, it can effectively separate magnetic impurities in the quartz sand and improve the purity of the quartz sand.

[0003] For the existing magnetic separation devices for high-purity quartz sand, such as the magnetic separation device for high-purity quartz sand with the patent number 201720773803.X, the spiral magnetic separation method is generally adopted. This method enhances the magnetic separation effect by increasing the flow path of the quartz sand, and indeed improves the purity of the quartz sand to a certain extent. However, this method also has certain drawbacks: since the quartz sand mainly moves downward along the spiral part by its own gravity when flowing, the subsequent flowing quartz sand will inevitably drive the magnetic metal impurities adsorbed on the spiral part to move together and finally be discharged from the outlet, which leads to the ineffective separation of the magnetic metal impurities and affects the final purity of the high-purity quartz sand. Content of the Utility Model

[0004] The purpose of the utility model is to provide a magnetic separation device for high-purity quartz sand to solve the problem that the quartz sand will inevitably drive the magnetic metal impurities adsorbed on the spiral part to move together and be discharged from the outlet.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A magnetic separation device for high-purity quartz sand, including a tank body, a central shaft is arranged inside the tank body, a first spiral part is arranged inside the tank body, a feed inlet is opened at the top of the tank body, a second spiral part is arranged between the central shaft and the inner wall of the tank body, the second spiral part is located below the first spiral part, a plurality of through grooves are opened on the first spiral part, a quartz sand flow cavity is formed among the top of the first spiral part, the central shaft and the inner wall of the tank body, and a metal impurity flow cavity is formed among the bottom of the first spiral part, the top of the second spiral part, the central shaft and the inner wall of the tank body.

[0006] Further, the width of the through groove is less than 0.2 millimeters.

[0007] Further, the first helical member is divided into a plurality of helical fins by a plurality of through grooves.

[0008] Further, the plurality of helical fins include a magnetic attraction section and two non-magnetic attraction sections. The magnetic attraction section is arranged between the two non-magnetic attraction sections, and the non-magnetic attraction section is arranged on the side close to the through groove.

[0009] Further, an air inlet pipe is connected between the bottom of the highest part of the first helical member and the top of the highest part of the second helical member. A plurality of air blowing ports are arranged on one side of the air inlet pipe, and the air blowing ports are aligned with the metal impurity flow cavity.

[0010] Further, a wind baffle is inclinedly arranged at the bottom of the plurality of through grooves.

[0011] Further, the air inlet of the air inlet pipe is installed on the air pump.

[0012] Further, the metal impurity flow cavity communicates with the metal impurity discharge port, and the quartz sand flow cavity communicates with the quartz sand discharge port.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] In this high-purity quartz sand magnetic separation device, through grooves are formed in the first helical member. When the high-purity quartz sand slides, the internal magnetic metal impurities are adsorbed by the first helical member. As the high-purity quartz sand flows, it will drive the magnetic metal impurities to slide, causing the magnetic metal impurities to fall into the through grooves and enter the metal impurity flow cavity, thereby avoiding the problem that the magnetic metal impurities flow out with the high-purity quartz sand and improving the magnetic separation and purification effect of the high-purity quartz sand.

[0015] In this high-purity quartz sand magnetic separation device, flowing gas is injected through the air inlet pipe to blow out the magnetic metal impurities from the metal impurity flow cavity, avoiding the accumulation of magnetic metal impurities in the metal impurity flow cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional view of the high-purity quartz sand magnetic separation device;

[0017] Figure 2 is a cross-sectional view of the high-purity quartz sand magnetic separation device;

[0018] Figure 3 is Figure 1 a schematic structural diagram after removing half of the tank body;

[0019] Figure 4 is Figure 1 a schematic structural diagram after removing the tank body;

[0020] Figure 5 is a schematic structural diagram of the air inlet pipe;

[0021] Figure 6 It is a schematic diagram of the spiral sheet structure.

[0022] In the figure: 10, tank body; 101, feed inlet; 20, central shaft; 301, metal impurity flow cavity; 3101, through groove; 3102, wind baffle; 302, quartz sand flow cavity; 310, first spiral member; 311, spiral sheet; 3111, magnetic attraction section; 3112, non-magnetic attraction section; 320, second spiral member; 40, air inlet pipe; 401, air blowing port; 501, metal impurity discharge port; 502, quartz sand discharge port. Specific embodiments

[0023] The following describes the present utility model in further detail in conjunction with embodiments.

[0024] The following embodiments are used to illustrate the present utility model, but cannot be used to limit the protection scope of the present utility model. The conditions in the embodiments can be further adjusted according to specific conditions. Any simple improvement of the method of the present utility model under the premise of the conception of the present utility model belongs to the scope protected by the present utility model.

[0025] Please refer to Figures 1-4 , the present utility model provides a high-purity quartz sand magnetic separation device, including a tank body 10, a central shaft 20 is arranged inside the tank body 10, a first spiral member 310 and a second spiral member 320 are arranged between the central shaft 20 and the inner wall of the tank body 10, the first spiral member 310 and the second spiral member 320 are arranged up and down, the bottom of the first spiral member 310, the top of the second spiral member 320, the central shaft 20 and the inner wall of the tank body 10 enclose a metal impurity flow cavity 301, and a quartz sand flow cavity 302 is enclosed between the top of the first spiral member 310, the central shaft 20 and the inner wall of the tank body 10.

[0026] A feed inlet 101 is opened at the top of the tank body 10, and quartz sand enters the quartz sand flow cavity 302 from the feed inlet 101 and spirally flows downward under the action of gravity.

[0027] A plurality of through grooves 3101 are opened on the first spiral member 310. The diameter of the quartz sand is between 0.2 and 0.5 millimeters, while the metal impurities are less than 0.05 millimeters. Therefore, the width of the through groove 3101 is less than 0.2 millimeters.

[0028] Please refer to Figures 1-6, the first helical member 310 is divided into a plurality of helical fins 311 by a plurality of through grooves 3101. The plurality of helical fins 311 include a magnetic attraction section 3111 and two non-magnetic attraction sections 3112. The magnetic attraction section 3111 is disposed between the two non-magnetic attraction sections 3112. The non-magnetic attraction section 3112 is disposed on the side close to the through groove 3101, so that no magnetic force is generated near the through groove 3101, thereby preventing metal debris from being adsorbed on the inner wall of the through groove 3101. An electromagnetic plate can be installed on the inner wall of the magnetic attraction section 3112 to generate a magnetic force in the magnetic attraction section 3112.

[0029] Please refer to Figures 1-5 , at the bottom of the highest part of the first helical member 310 and the top of the highest part of the second helical member 320, an air inlet pipe 40 is connected. A plurality of air blowing ports 401 are disposed on one side of the air inlet pipe 40, and the air blowing ports 401 are aligned with the metal impurity flow cavity 301. The air inlet pipe 40 can be installed on an air pump to generate wind force at the air blowing ports 401; a wind baffle 3102 is inclined at the bottom of the plurality of through grooves 3101, and the wind baffle 3102 is used to prevent wind from entering the quartz sand flow cavity 302 through the through grooves 3101.

[0030] Please refer to Figures 1-4 , the metal impurity flow cavity 301 communicates with a metal impurity discharge port 501, and the quartz sand flow cavity 302 communicates with a quartz sand discharge port 502. Metal impurities are discharged through the metal impurity discharge port 501, and quartz sand impurities are discharged through the quartz sand discharge port 502.

[0031] The working principle and usage process of the present utility model: Quartz sand enters from the feed port 101 through a feeding device. Under the action of gravity, the quartz sand slides along the top of the first helical member 310. While the quartz sand slides, the internal magnetic metal impurities are adsorbed through the magnetic attraction section 3112. As the quartz sand flows, it will drive the magnetic metal impurities to slide, causing the magnetic metal impurities to fall into the through groove 3101 and enter the top of the second helical member 320, thereby avoiding the problem that the magnetic metal impurities flow out with the quartz sand, resulting in poor magnetic attraction purification effect; Since the mass of the magnetic metal impurities is small, they will adhere to the top of the second helical member 320 and will not slide down. Therefore, a flowing gas is injected through the air inlet pipe 40 to blow out the magnetic metal impurities from the metal impurity flow cavity 301.

[0032] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A high-purity quartz sand magnetic separation device, comprising a tank body (10), a central shaft (20) is arranged inside the tank body (10), a first spiral member (310) is arranged inside the tank body (10), a feed inlet (101) is opened at the top of the tank body (10), and it is characterized in that: A second helical member (320) is provided between the central axis (20) and the inner wall of the tank body (10). The second helical member (320) is located below the first helical member (310). A plurality of through slots (3101) are formed in the first helical member (310). A quartz sand flow chamber (302) is formed between the top of the first helical member (310), the central axis (20) and the inner wall of the tank body (10). A metal impurity flow chamber (301) is formed among the bottom of the first helical member (310), the top of the second helical member (320), the central axis (20) and the inner wall of the tank body (10).

2. The high-purity quartz sand magnetic separation device according to claim 1, characterized in that: The width of the through slot (3101) is less than 0.2 mm.

3. The high-purity quartz sand magnetic separation device according to claim 1, characterized in that: The first helical member (310) is divided into a plurality of helical fins (311) by a plurality of through slots (3101).

4. The high-purity quartz sand magnetic separation device according to claim 3, wherein: The plurality of helical fins (311) include a magnetic attraction section (3111) and two non-magnetic attraction sections (3112). The magnetic attraction section (3111) is arranged between the two non-magnetic attraction sections (3112), and the non-magnetic attraction section (3112) is arranged on the side close to the through slot (3101).

5. The high-purity quartz sand magnetic separation device according to claim 1, characterized in that: An air inlet pipe (40) is connected between the bottom of the highest position of the first helical member (310) and the top of the highest position of the second helical member (320). A plurality of air blowing openings (401) are arranged on one side of the air inlet pipe (40), and the air blowing openings (401) are aligned with the metal impurity flow chamber (301).

6. The high-purity quartz sand magnetic separation device according to claim 5, characterized in that: A wind baffle (3102) is obliquely arranged at the bottom of the plurality of through slots (3101).

7. A high-purity quartz sand magnetic separation device according to claim 5 or 6, characterized in that: The air inlet of the air inlet pipe (40) is installed on an air pump.

8. The high-purity quartz sand magnetic separation device according to claim 1, characterized in that: The metal impurity flow chamber (301) communicates with a metal impurity discharge port (501), and the quartz sand flow chamber (302) communicates with a quartz sand discharge port (502).

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