Efficient membrane triethylamine recovery system

Abstract

The utility model discloses an efficient membrane recovery triethylamine system which comprises a machine frame, a supporting arm is fixedly connected to the right side of the top of the machine frame, a turnover barrel is placed in an inner cavity of the machine frame, a filling assembly is arranged at the top of the supporting arm, and the filling assembly comprises a membrane pump fixedly installed on the right side of the top of the supporting arm. And an air cylinder is fixedly installed at the top of the left side of the supporting arm, the output end of the air cylinder is fixedly connected with a filling pipe, the top of the filling pipe communicates with a connecting hose, and the end, away from the filling pipe, of the connecting hose communicates with the discharging end of the diaphragm pump. According to the recycling device, triethylamine is recycled through matched use of the turnover barrel and the filling assembly, the amine odor generated by the triethylamine is prevented from being diffused through the arrangement of the sealing assembly, meanwhile, the amine odor diffused in an inner cavity of the turnover barrel is filtered and purified through matched use of the exhaust pipe, the air purifier and the air pipe, and therefore the recycling effect of the triethylamine is improved. Therefore, the purpose of effectively preventing the amine odor from diffusing is achieved.

Description

Technical Field

[0001] This invention belongs to the field of triethylamine recovery technology, and in particular relates to a high-efficiency membrane recovery system for triethylamine. Background Technology

[0002] Triethylamine is oxidized to triethylamine oxide in the presence of the catalyst H2O2. H2O2 is reduced to water, and the dehydrated and purified triethylamine oxide is then purified by concentration, pyrolysis, salting out, or azeotropic distillation to obtain diethylhydroxylamine. Triethylamine can be recovered from the tail gas by using a combination of condensers, collection tanks, demisters, membrane separators, and vacuum pumps to continuously condense and separate triethylamine from the tail gas, thereby improving the recovery rate of triethylamine, reducing triethylamine loss, reducing energy consumption, improving economic efficiency, and reducing triethylamine volatilization and VOC emissions.

[0003] When treating workshop exhaust gas, it is generally absorbed by a cold water spray tower and then enters the incineration device, i.e., the exhaust gas treatment system, for incineration. This treatment system has a low triethylamine removal rate and cannot be recycled. Triethylamine is a volatile organic compound, i.e., VOC, which has a strong ammonia odor. The residual triethylamine in the exhaust gas not only emits a strong odor, but also causes instability and significant waste in the subsequent exhaust gas treatment system when incinerated.

[0004] Therefore, there is a need to provide a high-efficiency membrane recovery system for triethylamine. Based on the membrane separation recovery method, the collected triethylamine is recovered by sealed filling and gas purification filtration during the recovery process, which effectively prevents the emission of amine odor during the recovery process and avoids the odor generated during the recovery process from damaging the surrounding environment. Utility Model Content

[0005] The purpose of this invention is to provide a high-efficiency membrane recovery system for triethylamine. Based on the membrane separation and recovery method, the collected triethylamine is recovered by sealed filling and gas purification filtration during the recovery process, which effectively prevents the emission of amine odor during the recovery process and avoids the odor generated during the recovery process from damaging the surrounding environment, thereby solving the above-mentioned technical problems.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A high-efficiency membrane recovery triethylamine system includes a frame: a support arm is fixedly connected to the right side of the top of the frame, a turnover bucket is placed in the inner cavity of the frame, a filling assembly is provided on the top of the support arm, the filling assembly includes a diaphragm pump fixedly installed on the right side of the top of the support arm, a cylinder is fixedly installed on the top of the left side of the support arm, a filling pipe is fixedly connected to the output end of the cylinder, a connecting hose is connected to the top of the filling pipe, the end of the connecting hose away from the filling pipe is connected to the discharge end of the diaphragm pump, a bucket opening is fixedly connected to the top of the turnover bucket, the bottom end of the filling pipe penetrates into the inner cavity of the bucket opening and is fixedly connected to a filling head, a sealing cap is sleeved on the surface of the filling pipe, and a sealing assembly is provided in the inner cavity of the bucket opening.

[0007] Preferably, the sealing assembly includes a bracket fixedly connected to the inner cavity of the barrel opening, a sliding rod slidably connected to the inner cavity of the bracket, and a sealing plate fixedly connected to the top of the sliding rod.

[0008] Preferably, a first spring is sleeved on the surface of the sliding rod, and the top and bottom ends of the first spring are welded to the sealing plate and the bracket, respectively.

[0009] Preferably, a sealing ring is fixedly connected to the top of the inner cavity of the sealing cap, and the bottom of the sealing ring is in close contact with the top of the barrel opening.

[0010] Preferably, an exhaust pipe is fixedly connected to the right side of the top of the sealing cover, and an air purifier is fixedly installed in the inner cavity of the support arm. The right end of the exhaust pipe is connected to an air pipe, and the end of the air pipe away from the exhaust pipe is connected to the air inlet of the air purifier.

[0011] Preferably, a second spring is sleeved on the surface of the filling tube, and the top and bottom ends of the second spring are welded to the filling tube and the sealing cap, respectively.

[0012] The beneficial effects of this utility model are:

[0013] 1. This utility model recovers triethylamine by using a turnover bucket and a filling component together. The sealing component prevents the emission of amine odor generated by triethylamine. At the same time, the exhaust pipe, air purifier and air pipe are used together to filter and purify the amine odor emitted from the inner cavity of the turnover bucket, thereby effectively preventing the emission of amine odor.

[0014] 2. The present invention, through the setting of the sealing component, wherein the bracket, sliding rod and first spring work together to elastically push the sealing plate, and at the same time, the sealing plate seals the barrel opening, thereby preventing the inner cavity of the barrel opening from being exposed to the environment and reducing the possibility of amine odor emission.

[0015] 3. This utility model uses the exhaust pipe, air purifier and air pipe in combination to filter and purify the gas overflowing from the inner cavity of the frame, thereby preventing the amine odor from being directly discharged into the environment. Attached Figure Description

[0016] in:

[0017] Figure 1 This is a front cross-sectional view of one embodiment of the present invention;

[0018] Figure 2 This is one embodiment of the present utility model. Figure 1 A magnified view of point A in the middle;

[0019] Figure 3 This is a perspective view of one embodiment of the present utility model;

[0020] Figure 4 This is an exploded perspective view of the filling component and sealing cap according to one embodiment of the present invention.

[0021] The attached diagram lists the components represented by each number as follows:

[0022] 1. Frame, 2. Support arm, 3. Turnover bucket, 4. Filling assembly, 41. Diaphragm pump, 42. Cylinder, 43. Filling pipe, 44. Connecting hose, 45. Bucket opening, 46. Filling head, 5. Sealing cap, 6. Sealing assembly, 61. Bracket, 62. Sliding rod, 63. Sealing plate, 64. First spring, 65. Sealing ring, 7. Exhaust pipe, 8. Air purifier, 9. Air pipe, 10. Second spring. Detailed Implementation

[0023] In the following description, embodiments of the high-efficiency membrane recovery system for triethylamine of this invention will be described with reference to the accompanying drawings.

[0024] Figure 1-4This invention illustrates an embodiment of a high-efficiency membrane recovery system for triethylamine, comprising a frame 1. A support arm 2 is fixedly connected to the right side of the top of the frame 1. A transfer bucket 3 is placed inside the cavity of the frame 1. A filling assembly 4 is provided on the top of the support arm 2. The filling assembly 4 includes a diaphragm pump 41 fixedly installed on the right side of the top of the support arm 2. A cylinder 42 is fixedly installed on the top of the left side of the support arm 2. A filling pipe 43 is fixedly connected to the output end of the cylinder 42. A second spring 10 is sleeved on the surface of the filling pipe 43. The top and bottom ends of the second spring 10 are respectively connected to the filling pipe 43. 3 and sealing cap 5 are welded together. The top of the filling pipe 43 is connected to a connecting hose 44. The end of the connecting hose 44 away from the filling pipe 43 is connected to the discharge end of the diaphragm pump 41. The top of the turnover bucket 3 is fixedly connected to a bucket opening 45. The bottom end of the filling pipe 43 passes through the inner cavity of the bucket opening 45 and is fixedly connected to a filling head 46. The surface of the filling pipe 43 is fitted with a sealing cap 5. The right side of the top of the sealing cap 5 is fixedly connected to an exhaust pipe 7. An air purifier 8 is fixedly installed in the inner cavity of the support arm 2. The right end of the exhaust pipe 7 is connected to an air pipe. 9. The end of the air pipe 9 furthest from the exhaust pipe 7 is connected to the air inlet of the air purifier 8. Through the combined use of the exhaust pipe 7, the air purifier 8, and the air pipe 9, the gas overflowing from the inner cavity of the frame 1 is filtered and purified, thus preventing the ammonia odor from being directly discharged into the environment. A sealing assembly 6 is provided in the inner cavity of the barrel opening 45. The sealing assembly 6 includes a bracket 61 fixedly connected to the inner cavity of the barrel opening 45. A sliding rod 62 is slidably connected to the inner cavity of the bracket 61. A sealing plate 63 is fixedly connected to the top of the sliding rod 62. A first spring 64 is sleeved on the surface of the sliding rod 62. The top and bottom ends of the first spring 64 are welded to the sealing plate 63 and the bracket 61, respectively. A sealing ring 65 is fixedly connected to the top of the inner cavity of the sealing cover 5. The bottom of the sealing ring 65 is in close contact with the top of the barrel opening 45. Through the setting of the sealing assembly 6, the bracket 61, the sliding rod 62 and the first spring 64 work together to elastically push the sealing plate 63. At the same time, the sealing plate 63 seals the barrel opening 45, thereby preventing the inner cavity of the barrel opening 45 from being exposed to the environment and reducing the possibility of amine odor emission.

[0025] Working Principle: When using this invention, the user places the turnover bucket 3 into the inner cavity of the frame 1, ensuring the surface of the turnover bucket 3 is in close contact with the surface of the frame 1. Then, the cylinder 42 is activated, causing the filling pipe 43 to move downwards. During this downward movement, the filling pipe 43 simultaneously moves the sealing cap 5 and the filling head 46 downwards, allowing the filling head 46 to penetrate into the inner cavity of the bucket opening 45. The bottom of the filling head 46 contacts the top of the sealing plate 63, causing the sealing plate 63 to move downwards under the influence of the filling head 46, disengaging its surface from the inner wall of the bucket opening 45. At this point, the sliding rod 62 slides down within the inner cavity of the bracket 61, compressing the first spring 64. The filling head 46 moves into position, and simultaneously, the sealing cap 5 is in contact with the filling pipe 43. Driven by the action of the second spring 10, the cap 5 is locked onto the top of the barrel opening 45, sealing the barrel opening 45. At the same time, the compression of the second spring 10, under the elastic force of the second spring 10, makes the sealing cap 5 fit more tightly with the top of the barrel opening 45. At this time, the diaphragm pump 41 is turned on and draws the triethylamine from the collection tank. With the cooperation of the connecting hose 44 and the filling pipe 43, it is delivered to the filling head 46 and injected into the inner cavity of the turnover barrel 3 by the filling head 46. Since the triethylamine occupies the internal space of the frame 1 after entering the inner cavity of the frame 1, the air in the inner cavity of the frame 1 is discharged outward and enters the inner cavity of the air pipe 9 from the inner cavity of the exhaust pipe 7. Finally, the air enters the inner cavity of the air purifier 8 from the inner cavity of the air pipe 9. The air purifier 8 filters and purifies the amine odor in the air.

[0026] In summary, this high-efficiency membrane triethylamine recovery system recovers triethylamine through the combined use of the turnover tank 3 and the filling component 4. The sealing component 6 prevents the emission of amine odor generated by triethylamine. At the same time, the combined use of the exhaust pipe 7, the air purifier 8, and the air pipe 9 filters and purifies the amine odor emitted from the inner cavity of the turnover tank 3, thus effectively preventing the emission of amine odor.

Claims

1. A high-efficiency membrane recovery system for triethylamine, characterized in that, Includes a frame (1): a support arm (2) is fixedly connected to the right side of the top of the frame (1), a turnover bucket (3) is placed in the inner cavity of the frame (1), a filling assembly (4) is provided on the top of the support arm (2), the filling assembly (4) includes a diaphragm pump (41) fixedly installed on the right side of the top of the support arm (2), a cylinder (42) is fixedly installed on the top of the left side of the support arm (2), and a filling pipe (43) is fixedly connected to the output end of the cylinder (42). The top of the container (43) is connected to a connecting hose (44), and the end of the connecting hose (44) away from the filling pipe (43) is connected to the discharge end of the diaphragm pump (41). The top of the container (3) is fixedly connected to a barrel opening (45) connected to it. The bottom end of the filling pipe (43) extends into the inner cavity of the barrel opening (45) and is fixedly connected to a filling head (46). A sealing cap (5) is fitted on the surface of the filling pipe (43), and a sealing assembly (6) is provided in the inner cavity of the barrel opening (45).

2. The high-efficiency membrane recovery system for triethylamine according to claim 1, characterized in that, The sealing assembly (6) includes a bracket (61) fixedly connected to the inner cavity of the barrel opening (45), a sliding rod (62) slidably connected to the inner cavity of the bracket (61), and a sealing plate (63) fixedly connected to the top of the sliding rod (62).

3. The high-efficiency membrane recovery system for triethylamine according to claim 2, characterized in that, A first spring (64) is sleeved on the surface of the sliding rod (62), and the top and bottom ends of the first spring (64) are welded to the sealing plate (63) and the bracket (61) respectively.

4. The high-efficiency membrane recovery system for triethylamine according to claim 3, characterized in that, A sealing ring (65) is fixedly connected to the top of the inner cavity of the sealing cover (5), and the bottom of the sealing ring (65) is in close contact with the top of the barrel opening (45).

5. The high-efficiency membrane recovery system for triethylamine according to claim 4, characterized in that, An exhaust pipe (7) is fixedly connected to the right side of the top of the sealing cover (5). An air purifier (8) is fixedly installed in the inner cavity of the support arm (2). An air pipe (9) is connected to the right end of the exhaust pipe (7). The end of the air pipe (9) away from the exhaust pipe (7) is connected to the air inlet of the air purifier (8).

6. The high-efficiency membrane recovery system for triethylamine according to claim 5, characterized in that, The surface of the filling tube (43) is fitted with a second spring (10), and the top and bottom ends of the second spring (10) are welded to the filling tube (43) and the sealing cap (5) respectively.

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