A new type of stirred tank

Abstract

The utility model discloses a novel stirring tank, including the stirring tank main part, the top detachable installation of stirring tank main part has the sealing cover, the surface of sealing cover is fixed with four -way solenoid valve and penetrates, the top fixed of four -way solenoid valve has negative pressure connection pipe and nitrogen delivery pipe, the bottom of four -way solenoid valve fixed has the recovery short -pipe and nitrogen delivery hose, the end of recovery short -pipe and nitrogen delivery hose away from four -way solenoid valve all is equipped with electric control check valve. The utility model discloses utilize nitrogen delivery pipe, nitrogen delivery hose to send nitrogen to the inside of stirring tank main part, and the oxygen in the stirring tank main part is extracted through recovery short -pipe, negative pressure connection pipe in the nitrogen delivery process, and nitrogen starts to accumulate from the bottom of stirring tank main part, can better replace the oxygen in the stirring tank main part, improves the replacement efficiency of oxygen in the stirring tank main part, better elimination security risk.

Description

Technical Field

[0001] This utility model relates to the field of mixing tank technology, specifically a novel mixing tank. Background Technology

[0002] Agitated tanks (also known as conditioning tanks) are specialized equipment used in the metallurgical industry for leaching and purification. Their structural design is similar to that of flotation machines. Based on the agitation method, they are divided into two types: air-aggregated tanks and mechanically agitated tanks. The tank body is mostly made of carbon steel lined with anti-corrosion materials and equipped with a sealed squirrel-cage motor (JO), with a power usually not exceeding 7 kilowatts. The diameter of the propeller agitator is about 0.25-0.35 times the diameter of the tank body. The drive motor is a magnetic starter with thermal relay or an automatic switch control.

[0003] When feeding directly into an open system, the falling powder is prone to electrostatic discharge due to diffusion. When there are alcohol or ester liquids in the tank, the volatile gases can be ignited, leading to fire or explosion. Therefore, this does not meet the existing requirements. To address this, we propose a new type of mixing tank. Utility Model Content

[0004] The purpose of this invention is to provide a novel mixing tank to solve the problems mentioned in the background art, such as the tendency of powder to accumulate and discharge static electricity due to diffusion when it falls, and the possibility of igniting volatile gases that could lead to fires or explosions when there are alcohol or ester liquids in the tank.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A novel mixing tank, comprising a mixing tank body, a sealing cover plate detachably installed on the top of the mixing tank body, a four-way solenoid valve fixedly fixed through the surface of the sealing cover plate, a negative pressure connecting pipe and a nitrogen delivery pipe fixedly fixed on the top of the four-way solenoid valve, a recovery short pipe and a nitrogen delivery hose fixedly fixed at the bottom of the four-way solenoid valve, an electrically controlled one-way valve provided at the ends of the recovery short pipe and the nitrogen delivery hose away from the four-way solenoid valve, a rubber protective gasket covering the outer side of the bottom end of the nitrogen delivery hose, the nitrogen delivery hose and the rubber protective gasket fitting against the inner wall of the mixing tank body, and the distance between the bottom end of the nitrogen delivery hose and the bottom of the mixing tank body being two to five centimeters, and a gas concentration sensor being provided inside the negative pressure connecting pipe.

[0006] Preferably, two symmetrical support rings are installed on the inner side of the mixing tank body, and the support rings pass through the inside of the rubber protective gasket.

[0007] Preferably, the portion of the support ring that passes through the rubber protective pad is concave in an arc shape, and the nitrogen delivery hose is located at the concave part of the support ring.

[0008] Preferably, a stirring shaft is rotatably mounted through the center of the sealing cover, a motor frame is fixed to the top of the sealing cover, and a stirring motor is fixed to the inner side of the motor frame.

[0009] Preferably, the stirring shaft includes a rotating main shaft, the output shaft end of the stirring motor is connected to the top end of the rotating main shaft, two rotationally symmetrical MIG stirring paddles are fixed on the outer side of the rotating main shaft, and a stirring disc is fixed at the bottom end of the rotating main shaft. Multiple stirring serrations are distributed in a ring array on the upper and lower surfaces of the stirring disc.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. This utility model utilizes a nitrogen delivery pipe and a nitrogen delivery hose to deliver nitrogen into the main body of the mixing tank. During the nitrogen delivery process, oxygen inside the mixing tank is extracted through a recovery short pipe and a negative pressure connection pipe. Nitrogen accumulates from the bottom of the mixing tank, which can better replace the oxygen inside the mixing tank, improve the oxygen replacement efficiency inside the mixing tank, and better eliminate safety hazards.

[0012] 2. This utility model uses a support ring and a rubber protective pad to press the nitrogen delivery hose tightly against the inner wall of the mixing tank body, ensuring that the mixing shaft will not affect the nitrogen delivery hose during mixing, thus ensuring the safety of the mixing tank during operation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a cross-sectional view of the main body of the mixing tank of this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the rotating spindle of this utility model;

[0016] Figure 4 This is a schematic diagram of the assembly of the rubber protective gasket and support ring of this utility model.

[0017] In the diagram: 1. Main body of the mixing tank; 2. Sealing cover plate; 3. Mixing shaft; 31. Rotating main shaft; 32. MIG mixing paddle; 33. Mixing disc; 34. Mixing serrations; 4. Mixing motor; 5. Four-way solenoid valve; 6. Negative pressure connecting pipe; 7. Nitrogen delivery pipe; 8. Recovery short pipe; 9. Nitrogen delivery hose; 10. Rubber protective gasket; 11. Support ring. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] like Figures 1 to 4 As shown, a novel mixing tank includes a mixing tank body 1. A sealing cover 2 is detachably installed on the top of the mixing tank body 1. A four-way solenoid valve 5 is fixedly fixed through the surface of the sealing cover 2. A negative pressure connecting pipe 6 and a nitrogen delivery pipe 7 are fixed to the top of the four-way solenoid valve 5. A recovery short pipe 8 and a nitrogen delivery hose 9 are fixed to the bottom of the four-way solenoid valve 5. Both the recovery short pipe 8 and the nitrogen delivery hose 9 are equipped with electrically controlled check valves at their ends away from the four-way solenoid valve 5. A rubber protective gasket 10 is covered on the outer side of the bottom end of the nitrogen delivery hose 9. The nitrogen delivery hose 9 and the rubber protective gasket... The plate 10 is attached to the inner wall of the mixing tank body 1, and the distance between the bottom end of the nitrogen delivery hose 9 and the bottom of the mixing tank body 1 is two to five centimeters. The negative pressure connecting pipe 6 is equipped with a gas concentration sensor. Nitrogen is delivered to the mixing tank body 1 through the nitrogen delivery pipe 7 and the nitrogen delivery hose 9. During the nitrogen delivery process, oxygen inside the mixing tank body 1 is extracted through the recovery short pipe 8 and the negative pressure connecting pipe 6. Nitrogen accumulates from the bottom of the mixing tank body 1, which can better replace the oxygen inside the mixing tank body 1 and improve the oxygen replacement efficiency inside the mixing tank body 1.

[0020] Two symmetrical support rings 11 are installed on the inner side of the mixing tank body 1. The support rings 11 pass through the inside of the rubber protective gasket 10. The part of the support rings 11 that passes through the rubber protective gasket 10 is concave in an arc shape. The nitrogen delivery hose 9 is located at the concave part of the support rings 11. The support rings 11 and the rubber protective gasket 10 press the nitrogen delivery hose 9 tightly against the inner wall of the mixing tank body 1, ensuring that the force generated by the mixing shaft 3 during mixing will not affect the stability of the nitrogen delivery hose 9.

[0021] A stirring shaft 3 is rotatably mounted through the center of the sealing cover plate 2. A motor frame is fixed to the top of the sealing cover plate 2, and a stirring motor 4 is fixed to the inner side of the motor frame. The stirring shaft 3 includes a rotating main shaft 31. The output shaft end of the stirring motor 4 is connected to the top end of the rotating main shaft 31. Two rotationally symmetrical MIG stirring paddles 32 are fixed to the outer side of the rotating main shaft 31. A stirring plate 33 is fixed to the bottom end of the rotating main shaft 31. Multiple stirring serrations 34 are distributed in a circular array on the upper and lower surfaces of the stirring plate 33. The MIG stirring paddles 32, stirring plate 33, and stirring serrations 34 are used to increase the shear force of the stirring shaft 3 during stirring, thereby improving the stirring effect of the stirring tank.

[0022] Working Principle: When processing materials in the mixing tank, nitrogen is first introduced into the mixing tank body 1 through nitrogen delivery pipe 7, four-way solenoid valve 5, and nitrogen delivery hose 9. By continuously adding nitrogen into the mixing tank body 1, the oxygen inside is replaced, thereby reducing the oxygen content. During this nitrogen replacement process, the recovery short pipe 8, four-way solenoid valve 5, and negative pressure connection pipe 6 extract the gas from the top of the mixing tank body 1. During nitrogen delivery, oxygen is extracted from the mixing tank body 1 through the recovery short pipe 8 and negative pressure connection pipe 6, and nitrogen accumulates from the bottom of the mixing tank body 1, which better removes oxygen from the mixing tank body 1. The gas is replaced to improve the oxygen replacement efficiency inside the mixing tank body 1 and better eliminate safety hazards. During the extraction process, the gas concentration sensor inside the negative pressure connecting pipe 6 continuously monitors the nitrogen content in the gas inside the negative pressure connecting pipe 6. When the gas concentration sensor inside the negative pressure connecting pipe 6 detects that the oxygen content in the extracted gas has dropped to below 5%, it indicates that the nitrogen replacement inside the mixing tank body 1 is complete. The nitrogen supply and gas extraction of the negative pressure connecting pipe 6 are then cut off. Subsequently, the material is added into the mixing tank body 1 by adding nitrogen and pressurizing it, and the stirring motor 4 is powered on to drive the stirring shaft 3 to rotate. The rotating MIG is used to stir the material by stirring paddle 32, stirring disc 33 and stirring sawtooth 34.

[0023] 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 illustrative 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. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A new type of stirred tank comprising a stirred tank body (1), characterized by: A sealing cover plate (2) is detachably installed on the top of the mixing tank body (1). A four-way solenoid valve (5) is fixed through the surface of the sealing cover plate (2). A negative pressure connecting pipe (6) and a nitrogen delivery pipe (7) are fixed on the top of the four-way solenoid valve (5). A recovery short pipe (8) and a nitrogen delivery hose (9) are fixed at the bottom of the four-way solenoid valve (5). An electrically controlled one-way valve is provided at the ends of the recovery short pipe (8) and the nitrogen delivery hose (9) away from the four-way solenoid valve (5). A rubber protective gasket (10) is covered on the outside of the bottom end of the nitrogen delivery hose (9). The nitrogen delivery hose (9) and the rubber protective gasket (10) are attached to the inner wall of the mixing tank body (1), and the distance between the bottom end of the nitrogen delivery hose (9) and the bottom of the mixing tank body (1) is two to five centimeters. A gas concentration sensor is provided inside the negative pressure connecting pipe (6).

2. A novel stirred tank as claimed in claim 1, wherein: Two symmetrical support rings (11) are installed on the inner side of the mixing tank body (1), and the support rings (11) pass through the inside of the rubber protective pad (10).

3. A novel stirred tank as claimed in claim 2, wherein: The portion of the support ring (11) that passes through the rubber protective pad (10) is concave in an arc shape, and the nitrogen delivery hose (9) is located at the concave part of the support ring (11).

4. A novel stirred tank as claimed in claim 1, wherein: A stirring shaft (3) is rotatably mounted through the center of the sealing cover plate (2), a motor frame is fixed to the top of the sealing cover plate (2), and a stirring motor (4) is fixed to the inner side of the motor frame.

5. A novel stirred tank as claimed in claim 4, wherein: The stirring shaft (3) includes a rotating main shaft (31), the output shaft end of the stirring motor (4) is connected to the top of the rotating main shaft (31), two rotationally symmetrical MIG stirring paddles (32) are fixed on the outside of the rotating main shaft (31), and a stirring plate (33) is fixed at the bottom of the rotating main shaft (31). The upper and lower surfaces of the stirring plate (33) are both arranged in a ring array with multiple stirring serrations (34).

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