Sealed reaction tank

Abstract

The utility model discloses a sealed reaction tank, and belongs to the technical field of reaction tank sealing. The device comprises a tank body, a stirring mechanism, a sealing sleeve, a compensation air pump, an air extracting pump, an air extracting pipe, a second sleeve and a feeding pipe, the second sleeve is fixedly arranged on the top face of the tank body and fixedly connected with one end of the sealing sleeve, and the other end of the sealing sleeve is fixedly connected with the stirring mechanism; the stirring mechanism penetrates through the top surface of the tank body and extends into the tank body for stirring, the stirring mechanism is rotationally connected with the top surface of the tank body, the compensation air pump is fixedly mounted on the top surface of the tank body and is communicated with the sealing sleeve through an air supplementing pipe, the air extracting pump is communicated with the tank body through an air extracting pipe, and a feeding pipe is arranged on the side wall of the tank body. Pressure difference is formed in the sealing sleeve and the tank body, so that harmful gas is sealed in the tank body, the harmful gas is prevented from escaping, and meanwhile, the retention time of the sealing effect of the reaction tank is effectively prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of reaction tank sealing and relates to a sealed reaction tank. Background Art

[0002] The reaction tank is used for the reaction of substances. In order to increase the contact area between the reactants and speed up the reaction rate, it is often necessary to stir the reactants inside the reaction tank. In some reaction processes, harmful gases will be produced. Through stirring, harmful gases are more likely to escape from the reaction system. For example, when treating the dirty acid wastewater produced in the copper smelting process, it is necessary to add reactants to the wastewater. A large amount of harmful gases will be produced in the reaction process. When the reactants are stirred, the harmful gases are more likely to escape from the reaction system. For reactions that will produce harmful gases, the reaction tank is required to have a high degree of sealing to prevent harmful gases from escaping from the reaction tank and causing air pollution.

[0003] At present, mechanical seals, dry gas seals or labyrinth seal structures are mostly used to replace bearings to achieve the sealing between the stirring rod and the reaction tank. However, since the stirring rod needs to rotate for a long time, the parts of the reaction tank are severely worn after long-term use, resulting in increasingly poor sealing effects.

[0004] Therefore, it is necessary to provide a sealed reaction tank, which can prolong the sealing effect retention time of the reaction tank while making the reaction tank have higher sealing performance. Utility Model Content

[0005] In order to overcome the problems in the background technology, the utility model proposes a sealed reaction tank, which comprises a sealing sleeve installed on the top surface of a tank body, a compensating air pump is used to fill gas into the sealing sleeve, and a vacuum pump is used to extract gas from the tank body, so that a pressure difference is formed between the sealing sleeve and the tank body, and the pressure in the sealing sleeve is greater than the pressure in the tank body, thereby sealing harmful gases in the tank body to prevent them from escaping. On the one hand, the filled gas can fill the entire internal space formed by the sealing sleeve, the second sleeve and the stirring mechanism, so that the reaction tank has a higher sealing performance. On the other hand, the gas will not generate friction with structures such as the stirring mechanism, thereby forming a seal through the gas, which can effectively extend the sealing effect retention time of the reaction tank.

[0006] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0007] The sealed reaction tank comprises a tank body sealing sleeve 1, a stirring mechanism, a sealing sleeve 5, a compensating air pump sealing sleeve 6, a vacuum pump sealing sleeve 7, a vacuum pipe sealing sleeve 8, a second sleeve sealing sleeve 12, and a feed pipe sealing sleeve 14. The second sleeve sealing sleeve 12 is fixedly arranged on the top surface of the tank body sealing sleeve 1. The second sleeve sealing sleeve 12 is fixedly connected to one end of the sealing sleeve 5. The other end of the sealing sleeve 5 is fixedly connected to the stirring mechanism. The mechanism is fixedly connected, the stirring mechanism passes through the top surface of the tank body sealing sleeve 1 and extends into the interior of the tank body sealing sleeve 1 for stirring, the stirring mechanism is rotatably connected to the top surface of the tank body sealing sleeve 1, the compensation air pump sealing sleeve 6 sealing sleeve is fixedly installed on the top surface of the tank body sealing sleeve 1 sealing sleeve and is connected with the sealing sleeve 5 sealing sleeve through the air supply pipe, the vacuum pump sealing sleeve 7 sealing sleeve is connected with the tank body sealing sleeve 1 sealing sleeve through the vacuum pipe sealing sleeve 8 sealing sleeve, and a feed pipe sealing sleeve 14 sealing sleeve is arranged on the side wall of the tank body sealing sleeve 1.

[0008] Preferably, a valve sealing sleeve 15 is installed on the feed pipe sealing sleeve 14.

[0009] Preferably, the stirring mechanism includes a motor sealing sleeve 2 sealing sleeve, a stirring rod sealing sleeve 3 sealing sleeve, a bearing sealing sleeve 4 sealing sleeve, and a first sleeve sealing sleeve 13 sealing sleeve. The output end of the motor sealing sleeve 2 sealing sleeve is fixedly connected to one end of the stirring rod sealing sleeve 3 sealing sleeve, and the other end of the stirring rod sealing sleeve 3 sealing sleeve passes through the top surface of the tank body sealing sleeve 1 sealing sleeve and extends into the tank body sealing sleeve 1 sealing sleeve, and one end of the stirring rod sealing sleeve 3 sealing sleeve located in the tank body sealing sleeve 1 sealing sleeve is fixedly installed with a stirring blade, and the stirring rod sealing sleeve 3 sealing sleeve is rotatably connected to the top surface of the tank body sealing sleeve 1 sealing sleeve through the bearing sealing sleeve 4 sealing sleeve, and the first sleeve sealing sleeve 13 sealing sleeve is fixedly arranged on the surface where the output end of the motor sealing sleeve 2 sealing sleeve is located, and the first sleeve sealing sleeve 13 sealing sleeve is fixedly connected to the sealing sleeve sealing sleeve 5 sealing sleeve.

[0010] Preferably, the sealed reaction tank further comprises a support frame sealing sleeve 9, and the motor sealing sleeve 2 is fixedly connected to the top surface of the tank body sealing sleeve 1 through the support frame sealing sleeve 9.

[0011] Preferably, the sealing sleeve 5 is a segmented structure, including a third sleeve sealing sleeve 10 sealing sleeve and a fourth sleeve sealing sleeve 11 sealing sleeve. One end of the fourth sleeve sealing sleeve 11 is threadedly connected to the first sleeve sealing sleeve 13 sealing sleeve, and the other end of the fourth sleeve sealing sleeve 11 is provided with a flared edge sealing sleeve 16 sealing sleeve. One end of the third sleeve sealing sleeve 10 is threadedly connected to the second sleeve sealing sleeve 12 sealing sleeve and a flanging joint is provided at the end. The third sleeve sealing sleeve 10 has a closed edge sealing sleeve 18 at the other end, and the fourth sleeve sealing sleeve 11 is sleeved in the third sleeve sealing sleeve 10. The closed edge sealing sleeve 18 blocks the flared edge sealing sleeve 16 to prevent the fourth sleeve sealing sleeve 11 from falling out, and a piston sealing sleeve 17 is fixedly arranged between the flared edge sealing sleeve 16 and the side wall of the third sleeve sealing sleeve 10.

[0012] Preferably, a first sealing gasket sealing sleeve 20 is fixedly provided on the upper surface of the flared edge sealing sleeve 16, and a second sealing gasket sealing sleeve 19 is fixedly provided on the lower surface of the closed edge sealing sleeve 18, and a groove is provided on the second sealing gasket sealing sleeve 19 for the first sealing gasket sealing sleeve 20 to be embedded.

[0013] Beneficial effects of the utility model:

[0014] 1. The utility model increases the air pressure by filling gas into the sealing sleeve and reduces the air pressure by extracting gas from the tank body, so that a pressure difference is formed between the space formed by the sealing sleeve, the first sleeve and the second sleeve and the tank body, thereby preventing harmful gases from escaping from the connection between the stirring rod and the tank body, and avoiding wear between the sealing structure and rotating structures such as the stirring rod, thereby improving the sealing effect and maintaining time.

[0015] 2. The utility model fixes the motor to the top surface of the tank body through the support frame, thereby reducing the vibration of the motor during operation and increasing the stability of the motor during operation.

[0016] 3. The utility model designs the sealing sleeve in a segmented form, so that the third sleeve can be easily unscrewed from the second sleeve to observe the use condition of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is the front view of the utility model;

[0019] Figure 3 This is a schematic diagram of the explosion structure of the utility model;

[0020] Figure 4 It is a cross-sectional view of the utility model;

[0021] Figure 5 For this utility model Figure 4 The enlarged schematic diagram at A in the middle;

[0022] Figure 6 This is a schematic diagram of the structure of the sealing sleeve of the utility model;

[0023] Figure 7 This is a cross-sectional schematic diagram of the sealing sleeve of the utility model;

[0024] Figure 8 For this utility model Figure 7 Enlarged schematic diagram of point B in the middle.

[0025] In the figure, 1-tank body, 2-motor, 3-stirring rod, 4-bearing, 5-sealing sleeve, 6-compensating air pump, 7-exhaust pump, 8-exhaust pipe, 9-support frame, 10-third sleeve, 11-fourth sleeve, 12-second sleeve, 13-first sleeve, 14-feeding pipe, 15-valve, 16-expanding rim, 17-piston part, 18-closing rim, 19-second sealing gasket, 20-first sealing gasket. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below in conjunction with specific embodiments.

[0027] like Figure 1-8As shown, the sealed reaction tank includes a tank body sealing sleeve 1, a stirring mechanism, a sealing sleeve 5, a sealing sleeve, a compensation air pump sealing sleeve 6, a vacuum pump sealing sleeve 7, a vacuum pipe sealing sleeve 8, a second sleeve sealing sleeve 12, and a feed pipe sealing sleeve 14. The second sleeve sealing sleeve 12 is fixedly arranged on the top surface of the tank body sealing sleeve 1. The second sleeve sealing sleeve 12 is fixedly connected to one end of the sealing sleeve 5, and the other end of the sealing sleeve 5 is fixedly connected to the stirring mechanism. The stirring mechanism passes through the top surface of the tank body sealing sleeve 1 and extends into the interior of the tank body sealing sleeve 1 for stirring. The stirring mechanism is rotatably connected to the top surface of the tank body sealing sleeve 1. The compensating air pump sealing sleeve 6 is fixedly installed on the top surface of the tank body sealing sleeve 1 and is connected with the sealing sleeve 5 through the air supply pipe. It can be fixedly installed by bolts or the like. The vacuum pump sealing sleeve 7 is connected with the tank body sealing sleeve 1 through the vacuum pipe sealing sleeve 8. A feed pipe sealing sleeve 14 is arranged on the side wall of the tank body sealing sleeve 1.

[0028] The valve sealing sleeve 15 is installed on the feeding pipe sealing sleeve 14.

[0029] When the reaction tank needs to be used for material reaction, the compensating air pump 6 is turned on to fill the sealing sleeve 5 with gas. As the amount of gas filled into the closed space formed by the sealing sleeve 5, the second sleeve 12 and the stirring mechanism increases, the gas will escape into the tank body 1. The vacuum pump 7 is turned on to extract the gas that escapes into the tank body 1, so that the closed space formed by the sealing sleeve 5, the second sleeve 12 and the stirring mechanism is always filled with gas, and a relatively high air pressure is maintained relative to the tank body 1. Then, the valve 15 is opened, and the reaction material is added to the tank body 1 through the feed pipe 14. The stirring mechanism is turned on to stir. The mechanism stirs the reaction materials in the tank body 1, and the harmful gases generated during the reaction are also pumped out of the tank body 1 by the vacuum pump 7 for centralized collection and treatment. Although the vacuum pump 7 can pump out the harmful gases in the tank body 1, the amount of harmful gases generated by the reaction is large, and the vacuum pump 7 cannot pump out all the harmful gases in the tank body 1 in a short time. The gas fluidity is good. If the gas is only pumped by the vacuum pump 7, it is still easy for the gas to escape from the tank body 1. Therefore, it is necessary to fill the sealing sleeve 5 with gas to ensure that the harmful gases that have not been pumped out of the tank body 1 cannot escape from the tank body 1. The stirring mechanism is rotatably connected to the top surface of the tank body 1, and the stirring mechanism can only rotate, and will not slide up and down relative to the top surface of the tank body 1.

[0030] The stirring mechanism includes a motor sealing sleeve 2 sealing sleeve, a stirring rod sealing sleeve 3 sealing sleeve, a bearing sealing sleeve 4 sealing sleeve, and a first sleeve sealing sleeve 13 sealing sleeve. The output end of the motor sealing sleeve 2 sealing sleeve is fixedly connected to one end of the stirring rod sealing sleeve 3 sealing sleeve, and the other end of the stirring rod sealing sleeve 3 seals through the top surface of the tank body sealing sleeve 1 sealing sleeve and extends into the tank body sealing sleeve 1 sealing sleeve, and one end of the stirring rod sealing sleeve 3 sealing sleeve located in the tank body sealing sleeve 1 sealing sleeve is fixedly installed with a stirring blade, the stirring rod sealing sleeve 3 sealing sleeve is rotatably connected to the top surface of the tank body sealing sleeve 1 sealing sleeve through the bearing sealing sleeve 4 sealing sleeve, and the first sleeve sealing sleeve 13 sealing sleeve is fixedly arranged on the surface where the output end of the motor sealing sleeve 2 sealing sleeve is located, and the first sleeve sealing sleeve 13 sealing sleeve is fixedly connected to the sealing sleeve 5 sealing sleeve, and can be fixed by welding.

[0031] Turn on the motor 2, the motor 2 drives the stirring rod 3 to rotate, and the stirring rod 3 drives the stirring blades to rotate to stir the reaction materials in the tank body 1. Since the stirring rod 3 is rotatably connected to the top surface of the tank body 1 through the bearing 4, the stirring rod 3 and the inner ring of the bearing 4 are in a fixed connection state, and the stirring rod 3 will not slide up and down at this time. The existing sealing connection structure between the stirring rod 3 and the motor 2 can be used. After the gas is filled into the sealing sleeve 5, the gas can occupy the space surrounded by the sealing sleeve, the first sleeve 13, the second sleeve 12, the motor 2, and the top surface of the tank body 1, so that the space has a higher air pressure.

[0032] The sealed reaction tank also includes a support frame sealing sleeve 9 sealing sleeve, and the motor sealing sleeve 2 sealing sleeve is fixedly connected to the top surface of the tank body sealing sleeve 1 sealing sleeve through the support frame sealing sleeve 9 sealing sleeve.

[0033] The support frame 9 and the motor 2 can be fixedly connected by means of integral molding or the like, and the support frame 9 and the top surface of the tank body 1 can be detachably connected by means of bolts or the like. The motor 2 can be further fixed by the support frame 9, thereby reducing the vibration generated during the operation of the motor 2, thereby reducing the damage to the stirring rod 3 caused by the vibration of the motor 2 and increasing the stability of the motor 2.

[0034] The sealing sleeve 5 is a segmented structure, including a third sleeve sealing sleeve 10 and a fourth sleeve sealing sleeve 11. One end of the fourth sleeve sealing sleeve 11 is threadedly connected to the first sleeve sealing sleeve 13. The other end of the fourth sleeve sealing sleeve 11 is provided with a flared edge sealing sleeve 16. One end of the third sleeve sealing sleeve 10 is threadedly connected to the second sleeve sealing sleeve 12 and a flanging structure is provided at the end. A closed edge sealing sleeve 18 is arranged at the other end of the third sleeve sealing sleeve 10, and the fourth sleeve sealing sleeve 11 is sleeved in the third sleeve sealing sleeve 10. The closed edge sealing sleeve 18 blocks the flared edge sealing sleeve 16 to prevent the fourth sleeve sealing sleeve 11 from falling out, and a piston sealing sleeve 17 is fixedly arranged between the flared edge sealing sleeve 16 and the side wall of the third sleeve sealing sleeve 10.

[0035] Since the bearing 4 is always in operation during the operation of the reaction tank, it is more prone to wear and tear. When the bearing 4 is damaged, it will affect the normal operation of the reaction tank. Therefore, special attention should be paid to the wear and tear of the bearing 4. When the sealing sleeve 5 is designed as a segmented structure, it can be extended and retracted. On the one hand, since the stirring rod 3 is fixedly connected to the inner ring of the bearing 4, the stirring rod 3 cannot move up and down, and the motor 2 cannot move up and down. When the motor 2 cannot move up and down, the third sleeve 10 and the fourth sleeve 11 can be respectively tightened with the second sleeve 12 and the first sleeve 13 through threads. At the same time, when the reaction tank is not working, the third sleeve 10 can be unscrewed from the second sleeve 12, and the third sleeve 10 can be lifted to facilitate observation of the specific state of the bearing 4. By arranging the piston portion 17 between the flared edge 16 and the side wall of the third sleeve 10, a sealing effect can be formed to prevent the gas filled in the sealing sleeve 5 from escaping from the sealing sleeve 5, causing gas waste.

[0036] A first sealing gasket sealing sleeve 20 is fixedly arranged on the upper surface of the flared edge sealing sleeve 16, and a second sealing gasket sealing sleeve 19 is fixedly arranged on the lower surface of the closed edge sealing sleeve 18. The second sealing gasket sealing sleeve 19 is provided with a groove for the first sealing gasket sealing sleeve 20 to be embedded.

[0037] By providing the first sealing gasket 20 and the second sealing gasket 19 , the sealing performance of the connection between the third sleeve 10 and the fourth sleeve 11 is further enhanced.

[0038] The working process of the utility model is as follows: when a reaction is required, firstly, the compensating air pump is turned on to fill the sealing sleeve with gas, and then the vacuum pump is turned on to extract the gas that escapes into the tank body, ensuring that the air pressure in the sealing sleeve is always greater than the air pressure in the tank body, and then the valve is opened to add the reaction material into the tank body through the feed pipe. After the material is added, the valve is closed, the motor is turned on, and the material is started to be stirred. The harmful gas generated during the material reaction will not escape into the air and pollute the environment due to the pressure difference between the sealing sleeve and the inside of the tank body, nor will it escape into the first sleeve to affect the motor. Therefore, the harmful gas is sealed in the tank body and is extracted one after another by the vacuum pump for centralized collection and treatment. After the reaction is completed, the motor is first turned off to stop stirring. After the harmful gas in the tank body is exhausted, the compensating air pump and the vacuum pump are turned off to complete the entire reaction process. If the reaction residue in the tank needs to be extracted, the valve can be opened and the remaining material can be extracted through the feed pipe (if the remaining material is small, a hose can be inserted into the feed pipe with the valve opened. Since the valve is open, the hose will not be hindered by the valve and can be extended into the tank, and the remaining material can be extracted through the hose).

[0039] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the utility model.

Claims

1. A sealed reaction tank, characterized in that: The sealed reaction tank comprises a tank body (1), a stirring mechanism, a sealing sleeve (5), a compensating air pump (6), an air extraction pump (7), an air extraction pipe (8), a second sleeve (12), and a feed pipe (14). The second sleeve (12) is fixedly arranged on the top surface of the tank body (1). The second sleeve (12) is fixedly connected to one end of the sealing sleeve (5). The other end of the sealing sleeve (5) is fixedly connected to the stirring mechanism. The stirring mechanism passes through the top surface of the tank body (1) and extends into the interior of the tank body (1) for stirring. The stirring mechanism is rotatably connected to the top surface of the tank body (1). The compensating air pump (6) is fixedly installed on the top surface of the tank body (1) and is connected to the sealing sleeve (5) through the air compensation pipe. The air extraction pump (7) is connected to the tank body (1) through the air extraction pipe (8). The feed pipe (14) is arranged on the side wall of the tank body (1).

2. A sealed reaction tank according to claim 1, characterized in that: The feed pipe (14) is provided with a valve (15).

3. A sealed reaction tank according to claim 1 or 2, characterized in that: The stirring mechanism comprises a motor (2), a stirring rod (3), a bearing (4), and a first sleeve (13); the output end of the motor (2) is fixedly connected to one end of the stirring rod (3); the other end of the stirring rod (3) passes through the top surface of the tank body (1) and extends into the tank body (1); a stirring blade is fixedly installed at one end of the stirring rod (3) located in the tank body (1); the stirring rod (3) is rotatably connected to the top surface of the tank body (1) via the bearing (4); a first sleeve (13) is fixedly arranged on the surface where the output end of the motor (2) is located; and the first sleeve (13) is fixedly connected to the sealing sleeve (5).

4. A sealed reaction tank according to claim 3, characterized in that: The sealed reaction tank also includes a support frame (9), and the motor (2) is fixedly connected to the top surface of the tank body (1) via the support frame (9).

5. A sealed reaction tank according to claim 1 or 4, characterized in that: The sealing sleeve (5) is a segmented structure, comprising a third sleeve (10) and a fourth sleeve (11); one end of the fourth sleeve (11) is threadedly connected to the first sleeve (13); the other end of the fourth sleeve (11) is provided with a flared rim (16); one end of the third sleeve (10) is threadedly connected to the second sleeve (12) and a flange structure is provided at the end; the other end of the third sleeve (10) is provided with a closed rim (18); the fourth sleeve (11) is sleeved in the third sleeve (10); the closed rim (18) blocks the flared rim (16) to prevent the fourth sleeve (11) from falling out; a piston portion (17) is fixedly provided between the flared rim (16) and the side wall of the third sleeve (10).

6. A sealed reaction tank according to claim 5, characterized in that: A first sealing gasket (20) is fixedly arranged on the upper surface of the flared edge (16), and a second sealing gasket (19) is fixedly arranged on the lower surface of the closed edge (18), wherein the second sealing gasket (19) is provided with a groove for the first sealing gasket (20) to be embedded.

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