Tail gas treatment device for manganese acetate production

Abstract

The utility model relates to the technical field of tail gas treatment devices, in particular to a tail gas treatment device for manganese acetate production, which comprises a purification box, one end of the purification box is fixedly communicated with a gas inlet pipe, the other end of the purification box is fixedly communicated with a first water outlet pipe, and the top end of the purification box is fixedly communicated with a gas outlet pipe. One end of the first water outlet pipe fixedly communicates with a water storage tank, the top end of the water storage tank is fixedly connected with a water pump, the top end of the water pump fixedly communicates with a first water conveying pipe, the top end of the first water conveying pipe fixedly communicates with a second water conveying pipe, and one end of the second water conveying pipe penetrates through an inner cavity of the purification box and fixedly communicates with a spraying pipe; an inner cavity of the first water outlet pipe is rotationally connected with a flow limiting plate, and the bottom end of the flow limiting plate is fixedly connected with a pull rope. Compared with the prior art, the tail gas is purified twice through circulating water, so that mutual dissolution of manganese acetate contained in the tail gas and the circulating water is guaranteed, the mutual dissolution effect of the manganese acetate is improved, and the purification effect of the tail gas is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tail gas treatment devices, in particular to a tail gas treatment device for manganese acetate production. Background Art

[0002] Manganese acetate is an organic compound, also known as manganese acetate, which is a light red transparent monoclinic crystal, soluble in water and alcohol. It is mainly used as a catalyst for polyester chip and PTA production, and is also used in different reactions, the synthesis and polymerization of vinyl esters. It can also be used for leather tanning and dishwashing tablets, and can also be used as a desiccant for paints and coatings, a printing and dyeing mordant, a feed additive, etc.

[0003] In the prior art, a tail gas treatment device for manganese acetate production is proposed in a Chinese patent with the publication number CN205216527U. Utilizing the property that water and acetic acid are miscible, water is used as the absorption liquid to absorb acetic acid in the tail gas. When the acetic acid in the absorption liquid reaches about 10%, it can be used as dilute acid for production, which not only eliminates the pollution of acidic gases but also achieves the purpose of comprehensive utilization. However, in actual application, there is still a problem that the absorption liquid is sprayed by a spraying method to absorb manganese acetate in hydrogen carrying manganese acetate. The spraying is not uniform enough, resulting in part of the manganese acetate not being miscible with water, so that this part of the manganese acetate gas is carried into the air by hydrogen. Therefore, we disclose a tail gas treatment device for manganese acetate production. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a tail gas treatment device for manganese acetate production to solve the problem that manganese acetate is not completely absorbed and discharged into the air.

[0005] Based on the above purpose, the utility model provides a tail gas treatment device for manganese acetate production, including a purification box. One end of the purification box is fixedly communicated with an air inlet pipe, and the other end of the purification box is fixedly communicated with a first water outlet pipe. The top end of the purification box is fixedly communicated with an air outlet pipe. One end of the first water outlet pipe is fixedly communicated with a water storage tank. The top end of the water storage tank is fixedly connected with a water pump. The top end of the water pump is fixedly communicated with a first water delivery pipe. The top end of the first water delivery pipe is fixedly communicated with a second water delivery pipe. One end of the second water delivery pipe penetrates into the inner cavity of the purification box and is fixedly communicated with a spray pipe. A flow limiting plate is rotatably connected in the inner cavity of the first water outlet pipe. The bottom end of the flow limiting plate is fixedly connected with a pull rope, and the top end of the pull rope is fixedly connected with a floating plate.

[0006] Preferably, two first limit frames are fixedly connected to the bottom end of the purification tank. The two first limit frames are symmetrically distributed with the longitudinal central axis of the flow-limiting plate as the center. The floating plate is movably sleeved with the first limit frames. A second limit frame is fixedly connected between the two first limit frames. A hole is formed in the middle of the second limit frame. The pull rope passes through the hole and is fixedly connected to the floating plate.

[0007] Preferably, the flow-limiting plate is a circular plate, and the second limit frame is located above the rotating shaft of the flow-limiting plate.

[0008] Preferably, a plurality of fixing frames are fixedly connected to the outer wall of the spray pipe. All the plurality of fixing frames are fixedly connected to the purification tank. The spray pipe is in a spiral ascending shape, and the top end of the spray pipe is located below the bottom end of the air outlet pipe.

[0009] Preferably, a spring is fixedly connected to the top end of the flow-limiting plate. The spring is fixedly connected to the first water outlet pipe. The flow-limiting plate is inclined relative to the horizontal plane.

[0010] Preferably, a second water outlet pipe is fixedly communicated with the bottom end of the water storage tank. The top end of the second water delivery pipe is fixedly communicated with a water inlet pipe. Water valves are installed in the middle of the second water delivery pipe, the second water outlet pipe, and the water inlet pipe. The water valve of the second water delivery pipe is located between the water inlet pipe and the first water delivery pipe.

[0011] Preferably, both the air inlet pipe and the air outlet pipe are elbow pipes. One end of the air inlet pipe is located in the middle of the bottom end of the purification tank. The top end of the purification tank is hemispherical. The suction pipe fixedly connected to the lower end of the water pump penetrates to the bottom end of the water storage tank.

[0012] The beneficial effects of the present utility model: Circulating water is sprayed into the inner cavity of the purification tank through the spray pipe, so that the manganese acetate contained in the tail gas is fused with the circulating water. The fused circulating water falls to the bottom end of the purification tank and is then discharged into the water storage tank through the first water outlet pipe. The tail gas that has absorbed manganese acetate is discharged through the air outlet pipe, completing the primary purification of the tail gas. The un-discharged circulating water accumulates in the inner cavity of the purification tank and submerges the air inlet pipe, ensuring that the tail gas discharged from the air inlet pipe will come into contact with the circulating water, enabling the circulating water to purify the tail gas twice, thereby ensuring the mutual solubility of the manganese acetate contained in the tail gas and the circulating water, improving the mutual solubility effect of manganese acetate, and thus enhancing the purification effect of the tail gas;

[0013] When the circulating water is replaced, the water valves of the second water delivery pipe, the second water outlet pipe, and the water inlet pipe are opened simultaneously, which can ensure that the device can continue to process the tail gas, so that the device can complete the replacement of the circulating water without stopping, avoiding the impact of the device shutdown on the operation of the previous process and improving the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Schematic diagram of an embodiment of the present utility model;

[0015] Figure 2 Schematic perspective view of a partially cut-away structure of the purification box of the present utility model;

[0016] Figure 3 For the present utility model Figure 2 Schematic perspective view of an enlarged structure at A of the present utility model;

[0017] Figure 4 Schematic perspective view of a partially cut-away structure of the first water outlet pipe of the present utility model.

[0018] The markings in the figure are:

[0019] 1, purification box; 2, intake pipe; 3, outlet pipe; 4, first water outlet pipe; 5, water storage tank; 6, water pump; 7, first water delivery pipe; 8, second water delivery pipe; 9, spray pipe; 10, fixing frame; 11, current limiting plate; 12, spring; 13, pull rope; 14, floating plate; 15, first limiting frame; 16, second limiting frame; 17, second water outlet pipe; 18, water inlet pipe. Detailed implementation manners

[0020] To make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with specific embodiments.

[0021] It should be noted that unless otherwise defined, the technical terms or scientific terms used in the present utility model should have the ordinary meanings understood by those with ordinary skills in the field to which the present utility model belongs. The "first", "second" and similar terms used in the present utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. The terms such as "including" or "comprising" mean that the elements or objects appearing before this term cover the elements or objects listed after this term and their equivalents, without excluding other elements or objects. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left" and "right" are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0022] Such as Figures 1 - 4As shown in the figure, an exhaust gas treatment device for the production of manganese acetate includes a purification tank 1. One end of the purification tank 1 is fixedly communicated with an intake pipe 2, and the other end of the purification tank 1 is fixedly communicated with a first water outlet pipe 4. The top end of the purification tank 1 is fixedly communicated with an exhaust pipe 3. One end of the first water outlet pipe 4 is fixedly communicated with a water storage tank 5. The top end of the water storage tank 5 is fixedly connected with a water pump 6. The top end of the water pump 6 is fixedly communicated with a first water delivery pipe 7. The top end of the first water delivery pipe 7 is fixedly communicated with a second water delivery pipe 8. One end of the second water delivery pipe 8 penetrates into the inner cavity of the purification tank 1 and is fixedly communicated with a spray pipe 9. A flow limiting plate 11 is rotatably connected to the inner cavity of the first water outlet pipe 4. The bottom end of the flow limiting plate 11 is fixedly connected with a pull rope 13. The top end of the pull rope 13 is fixedly connected with a floating plate 14. The bottom end of the purification tank 1 is fixedly connected with two first limiting frames 15. The two first limiting frames 15 are symmetrically distributed with the longitudinal central axis of the flow limiting plate 11 as the center. The floating plate 14 and the first limiting frames 15 are movably sleeved. A second limiting frame 16 is fixedly connected between the two first limiting frames 15. A hole is opened in the middle of the second limiting frame 16. The pull rope 13 passes through the hole and is fixedly connected with the floating plate 14. The flow limiting plate 11 is a circular plate. The second limiting frame 16 is located above the rotating shaft of the flow limiting plate 11. A plurality of fixing frames 10 are fixedly connected to the outer wall of the spray pipe 9. A plurality of fixing frames 10 are all fixedly connected with the purification tank 1. The spray pipe 9 is in a spiral rising shape. The top end of the spray pipe 9 is located below the bottom end of the exhaust pipe 3. The top end of the flow limiting plate 11 is fixedly connected with a spring 12. The spring 12 is fixedly connected with the first water outlet pipe 4. The flow limiting plate 11 is inclined relative to the horizontal plane. Both the intake pipe 2 and the exhaust pipe 3 are bent pipes. One end of the intake pipe 2 is located in the middle of the bottom end of the purification tank 1. The top end of the purification tank 1 is hemispherical. The water suction pipe fixedly connected to the lower end of the water pump 6 penetrates to the bottom end of the water storage tank 5. During use, through one end of the purification tank 1 being fixedly communicated with the intake pipe 2, the other end of the purification tank 1 being fixedly communicated with the first water outlet pipe 4, the top end of the purification tank 1 being fixedly communicated with the exhaust pipe 3, one end of the first water outlet pipe 4 being fixedly communicated with the water storage tank 5, the top end of the water storage tank 5 being fixedly connected with the water pump 6, the top end of the water pump 6 being fixedly communicated with the first water delivery pipe 7, and the top end of the first water delivery pipe 7 being fixedly communicated with the second water delivery pipe 8, and one end of the second water delivery pipe 8 penetrating into the inner cavity of the purification tank 1 and being fixedly communicated with the spray pipe 9, when working, the water pump 6 is started to suck the circulating water in the water storage tank 5 into the first water delivery pipe 7 and the second water delivery pipe 8 and enter the inner cavity of the spray pipe 9, so that the spray pipe 9 sprays the circulating water into the inner cavity of the purification tank 1. Then, the exhaust gas output from the intake pipe 2 will enter the inner cavity of the purification tank 1. The manganese acetate contained in the exhaust gas is combined with the circulating water. The combined circulating water falls to the bottom end of the purification tank 1 and is then discharged into the water storage tank 5 through the first water outlet pipe 4. The exhaust gas that has absorbed manganese acetate is discharged through the exhaust pipe 3, completing the purification of the exhaust gas. Through the flow limiting plate 11 being rotatably connected to the inner cavity of the first water outlet pipe 4, the flow limiting plate 11 restricts the flow rate of the circulating water, so that the un-discharged circulating water accumulates in the inner cavity of the purification tank 1 and floods the intake pipe 2, thereby ensuring that all the exhaust gas discharged from the intake pipe 2 will come into contact with the circulating water.The circulating water is purified twice, so as to ensure the mutual solubility of manganese acetate contained in the tail gas and the circulating water, improve the treatment effect of manganese acetate. The bottom end of the flow-limiting plate 11 is fixedly connected with a pull rope 13, and the top end of the pull rope 13 is fixedly connected with a floating plate 14. When the circulating water accumulated in the inner cavity of the purification tank 1 is excessive, it will drive the floating plate 14 to float upward, so that the floating plate 14 pulls the flow-limiting plate 11 to rotate to be parallel to the horizontal plane through the pull rope 13, increasing the circulating water flow rate of the first water outlet pipe 4 to the maximum, accelerating the flow rate of the circulating water from the purification tank 1 into the water storage tank 5, preventing excessive circulating water from accumulating in the inner cavity of the purification tank 1 from affecting the circulation of the circulating water, ensuring that there is enough circulating water sprayed by the spray pipe 9, so that manganese acetate will be discharged after being purified twice, improving the purification effect of the tail gas. After the water level in the purification tank 1 drops, the floating plate 14 will also drop, causing the flow-limiting plate 11 to rotate downward, hindering the circulation of the circulating water in the first water outlet pipe 4, so as to ensure that the circulating water retained in the purification tank 1 can always overflow the air inlet pipe 2 in the purification tank 1 without affecting the normal circulation and use of the circulating water. The bottom end of the purification tank 1 is fixedly connected with two first limiting frames 15, and the two first limiting frames 15 are symmetrically distributed with the longitudinal central axis of the flow-limiting plate 11 as the center. The floating plate 14 and the first limiting frames 15 are movably sleeved, so that the floating plate 14 is restricted by the first limiting frames 15 to float vertically and will not be affected by the flow-limiting plate 11 to tip over, ensuring the normal use of the floating plate 14. A second limiting frame 16 is fixedly connected between the two first limiting frames 15. A hole is opened in the middle of the second limiting frame 16, and the pull rope 13 passes through the hole and is fixedly connected with the floating plate 14, so that the second limiting frame 16 restricts the moving direction of the pull rope 13 and prevents the floating plate 14 from tipping over. Since the flow-limiting plate 11 is a circular plate, the flow-limiting plate 11 can rotate in the first water outlet pipe 4. Since the second limiting frame 16 is located above the rotating shaft of the flow-limiting plate 11, the pull rope 13 can pull the flow-limiting plate 11 to be parallel to the horizontal plane. The outer wall of the spray pipe 9 is fixedly connected with a number of fixing frames 10, and the number of fixing frames 10 are all fixedly connected with the purification tank 1, so that the position of the spray pipe 9 is better fixed. Since the spray pipe 9 is in a spiral rising shape and the top end of the spray pipe 9 is located below the bottom end of the air outlet pipe 3, the spray pipe 9 is arranged following the airflow direction, improving the mutual solubility rate of the circulating water sprayed by the spray pipe 9 and manganese acetate. The top end of the flow-limiting plate 11 is fixedly connected with a spring 12, and the spring 12 is fixedly connected with the first water outlet pipe 4. The flow-limiting plate 11 is inclined relative to the horizontal plane, so that the spring 12 helps the flow-limiting plate 11 to maintain a position inclined relative to the horizontal plane, thus enabling the flow-limiting plate 11 to restrict the flow rate of the circulating water. Since both the air inlet pipe 2 and the air outlet pipe 3 are bent pipes, it is avoided that the circulating water flows out through the air inlet pipe 2 and the air outlet pipe 3. Since one end of the air inlet pipe 2 is located in the middle of the bottom end of the purification tank 1, the mutual solubility of the gas discharged from the air inlet pipe 2 and the circulating water is better. Since the top end of the purification tank 1 is hemispherical, it guides the gas to flow towards the air outlet pipe 3, accelerating the gas outflow speed.,

[0023] As a preferred embodiment in this embodiment, as Figure 1 and Figure 2 shown, a second water outlet pipe 17 is fixedly communicated with the bottom end of the water storage tank 5, and a water inlet pipe 18 is fixedly communicated with the top end of the second water delivery pipe 8. Water valves are installed in the middle of the second water delivery pipe 8, the second water outlet pipe 17 and the water inlet pipe 18. The water valve of the second water delivery pipe 8 is located between the water inlet pipe 18 and the first water delivery pipe 7. By fixedly communicating the bottom end of the water storage tank 5 with the second water outlet pipe 17, when the circulating water reaches the required pH value, it can be discharged through the second water outlet pipe 17. By fixedly communicating the top end of the second water delivery pipe 8 with the water inlet pipe 18, new circulating water can flow into the second water delivery pipe 8 through the water inlet pipe 18, and then enter the spray pipe 9. By the water valve of the second water delivery pipe 8 being located between the water inlet pipe 18 and the first water delivery pipe 7, new circulating water is prevented from entering the first water delivery pipe 7, ensuring that there is enough circulating water in the spray pipe 9 for spraying. When the circulating water is being replaced, the water valves of the second water delivery pipe 8, the second water outlet pipe 17 and the water inlet pipe 18 are opened simultaneously, which can ensure that the device can continue to treat the tail gas, so that the device can complete the replacement of the circulating water without stopping, avoiding the impact of the device shutdown on the operation of the previous process and improving the production efficiency.

[0024] Those of ordinary skill in the art should understand that: the discussion of any embodiment above is only exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, which are not provided in detail for the sake of brevity.

[0025] The present invention aims to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An exhaust gas treatment device for the production of manganese acetate, comprising a purification box (1), characterized in that, One end of the purification box (1) is fixedly communicated with an air inlet pipe (2), the other end of the purification box (1) is fixedly communicated with a first water outlet pipe (4), the top end of the purification box (1) is fixedly communicated with an air outlet pipe (3), one end of the first water outlet pipe (4) is fixedly communicated with a water storage tank (5), the top end of the water storage tank (5) is fixedly connected with a water pump (6), the top end of the water pump (6) is fixedly communicated with a first water conveying pipe (7), the top end of the first water conveying pipe (7) is fixedly communicated with a second water conveying pipe (8), one end of the second water conveying pipe (8) penetrates into the inner cavity of the purification box (1) and is fixedly communicated with a spray pipe (9), a flow limiting plate (11) is rotatably connected in the inner cavity of the first water outlet pipe (4), a pull rope (13) is fixedly connected to the bottom end of the flow limiting plate (11), and a floating plate (14) is fixedly connected to the top end of the pull rope (13).

2. The tail gas treatment device for manganese acetate production according to claim 1, wherein Two first limiting frames (15) are fixedly connected to the bottom end of the purification box (1), and the two first limiting frames (15) are symmetrically distributed with respect to the longitudinal central axis of the flow limiting plate (11). The floating plate (14) and the first limiting frames (15) are movably sleeved, a second limiting frame (16) is fixedly connected between the two first limiting frames (15), a hole is formed in the middle of the second limiting frame (16), and the pull rope (13) penetrates through the hole and is fixedly connected to the floating plate (14).

3. The tail gas treatment device for the production of manganese acetate according to claim 2, characterized in that, The flow limiting plate (11) is a circular plate, and the second limiting frame (16) is located above the rotating shaft of the flow limiting plate (11).

4. The tail gas treatment device for the production of manganese acetate according to claim 1, characterized in that, A plurality of fixing frames (10) are fixedly connected to the outer wall of the spray pipe (9), and all the fixing frames (10) are fixedly connected to the purification box (1). The spray pipe (9) is in a spiral rising shape, and the top end of the spray pipe (9) is located below the bottom end of the air outlet pipe (3).

5. The tail gas treatment device for the production of manganese acetate according to claim 1, characterized in that, A spring (12) is fixedly connected to the top end of the flow limiting plate (11), the spring (12) is fixedly connected to the first water outlet pipe (4), and the flow limiting plate (11) is arranged obliquely with respect to the horizontal plane.

6. The tail gas treatment device for manganese acetate production according to claim 1, wherein A second water outlet pipe (17) is fixedly communicated with the bottom end of the water storage tank (5), a water inlet pipe (18) is fixedly communicated with the top end of the second water conveying pipe (8), water valves are installed in the middle of the second water conveying pipe (8), the second water outlet pipe (17) and the water inlet pipe (18), and the water valve of the second water conveying pipe (8) is located between the water inlet pipe (18) and the first water conveying pipe (7).

7. The tail gas treatment device for manganese acetate production according to claim 1, characterized in that, Both the air inlet pipe (2) and the air outlet pipe (3) are bent pipes. One end of the air inlet pipe (2) is located in the middle of the bottom end of the purification box (1). The top end of the purification box (1) is hemispherical. The water suction pipe fixedly connected to the lower end of the water pump (6) penetrates to the bottom end of the water storage tank (5).

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