An acrylonitrile production waste gas treatment device

Abstract

This utility model discloses an acrylonitrile production waste gas treatment device, comprising: a waste gas treatment tank, a transmission mechanism disposed inside the waste gas treatment tank, a filtration mechanism including a water pump, an inlet pipe connected to the water pump, an outlet pipe connected to the water pump, the end of the outlet pipe away from the water pump penetrating the waste gas treatment tank and extending into the interior of the waste gas treatment tank, connected to a circulation pipe, a spray head connected to the bottom of the circulation pipe, and a filter screen mechanism including a filter screen. This utility model, by setting up a transmission mechanism, can filter the waste gas; then, through the filtration mechanism, it can perform secondary filtration; and finally, through the filter screen mechanism, it can perform tertiary filtration. When the acrylonitrile waste gas is discharged, it will not contain various harmful substances, making it convenient for users and avoiding pollution of the surrounding environment.

Description

Technical Field

[0001] This utility model relates to the field of acrylonitrile technology, specifically to an acrylonitrile production waste gas treatment device. Background Technology

[0002] Acrylonitrile is an organic compound with the chemical formula C3H3N. It is a colorless liquid with a pungent odor that is flammable. Its vapor can form an explosive mixture with air. It is easily ignited by open flames or high heat, releasing toxic gases. It reacts violently with oxidizers, strong acids, strong bases, amines, and bromine.

[0003] Acrylonitrile production requires a waste gas treatment device. For example, Chinese patent discloses a waste gas treatment device for acrylonitrile production product storage tanks, publication (announcement) number: CN217829495U, which includes a storage tank, a scrubbing tower, a waste gas buffer tank, a catalytic oxidation incinerator, and an SCR reactor connected in sequence. The top of the storage tank is connected to a medium-pressure nitrogen pipeline with a self-regulating nitrogen valve and a venting pipeline with a self-regulating venting valve. The bottom outlet of the scrubbing tower is connected to the waste liquid discharge pipeline and the inlet of the scrubbing tower, respectively. The exhaust pipe at the bottom of the waste gas buffer tank is divided into two paths after passing through a centrifugal fan. One path is connected to a U-shaped heat exchanger, and the other path is connected to the catalytic oxidation incinerator. The top of the SCR reactor is connected to the tail gas discharge pipeline. The waste gas treatment device of this utility model effectively collects the waste gas generated by the storage tanks of acrylonitrile production, and then treats it by washing, incineration and denitrification in sequence, so as to achieve the standard emission of waste gas from the tank area. The above-mentioned patent cannot filter multiple times during use, which makes it easy for various harmful substances to be mixed inside the acrylonitrile waste gas when it is discharged, which is inconvenient for users and easily pollutes the surrounding environment. Utility Model Content

[0004] To address the problems mentioned in the background art, the purpose of this utility model is to provide an acrylonitrile production waste gas treatment device that is convenient for users and solves the problem of inconvenience for users in acrylonitrile production waste gas treatment devices.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an acrylonitrile production waste gas treatment device, comprising:

[0006] Waste gas treatment tank;

[0007] The transmission mechanism is disposed inside the waste gas treatment tank;

[0008] The filtration mechanism includes a water pump, the water pump's inlet is connected to an inlet pipe, the water pump's outlet is connected to an outlet pipe, the end of the outlet pipe away from the water pump passes through the waste gas treatment tank and extends into the interior of the waste gas treatment tank, where it is connected to a circulation pipe, and the bottom of the circulation pipe is connected to a spray head.

[0009] A filter screen mechanism, comprising a filter screen one, with activated carbon movably connected to the top of the filter screen one, and a filter screen two movably connected to the top of the activated carbon.

[0010] In a preferred embodiment of this utility model, the waste gas treatment tank includes a base, a water tank is fixedly connected to the right side of the top of the base, a filter tank one is fixedly connected to the left side of the top of the base, a filter tank two is fixedly connected to the top of the filter tank one, a filter tank three is fixedly connected to the top of the filter tank two, a tank top is fixedly connected to the top of the filter tank three, the surface of the filter screen one is fixedly connected to the inner wall of the filter tank three, the surface of the filter screen two is fixedly connected to the inner wall of the filter tank three, the end of the water inlet pipe away from the pump passes through the filter tank three and extends into the interior of the filter tank three, communicating with the right side of the circulation pipe, the end of the water inlet pipe away from the pump passes through the water tank and extends into the interior of the water tank, and the bottom of the pump is fixedly connected to the top of the water tank.

[0011] As a preferred embodiment of this utility model, the transmission mechanism includes a connecting pipe, one end of which extends into the interior of the first filter tank and is connected to an air jet head. The top right side of the first filter tank is connected to a pipe, and the other end of which passes through the water tank and extends into the interior of the water tank and is connected to an aeration head. A sealing plate is provided inside the inner wall of the second filter tank, and the surface of the sealing plate is fixedly connected to the interior of the second filter tank.

[0012] As a preferred embodiment of this utility model, a transmission pipe is connected to the bottom right side of the filter tank 2, and the end of the transmission pipe away from the filter tank 2 is connected to the left side of the top of the water tank. Support legs are fixedly connected to the four corners of the bottom of the base.

[0013] As a preferred embodiment of this utility model, the top of the water tank is connected to an air pipe, the end of the air pipe away from the water tank passes through the second filter tank and extends into the interior of the second filter tank, and the bottom of the air pipe is connected to an air outlet.

[0014] As a preferred embodiment of this invention, the top of the tank is connected to an air outlet pipe, and a horizontal plate is fixedly connected inside the circulation pipe.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model can filter exhaust gas by setting a transmission mechanism, then filter the exhaust gas a second time by a filtration mechanism, and then filter the exhaust gas a third time by a filter screen mechanism. When the exhaust gas is discharged, the acrylonitrile exhaust gas will not be mixed with various harmful substances, which is convenient for users and avoids pollution of the surrounding environment.

[0017] 2. This utility model can treat waste gas by setting up a waste gas treatment tank. The user filters the waste gas through the water inside the first filter tank, then treats the waste gas a second time through the water tank, and then treats the waste gas a third time through the filtration mechanism and filter screen mechanism inside the third filter tank, so as to avoid the presence of harmful substances in the gas.

[0018] 3. This utility model can transmit exhaust gas by setting up a transmission mechanism. The user transmits the exhaust gas into the interior of the jet head through the connecting pipe. The jet head transmits the exhaust gas into the interior of the filter tank. Then, the exhaust gas is transmitted into the interior of the aeration head through the pipeline. The aeration head then transmits the exhaust gas into the interior of the water tank, where the exhaust gas is treated again. Attached Figure Description

[0019] Figure 1 This is a structural diagram of the present utility model;

[0020] Figure 2 This utility model Figure 1 A three-dimensional structural diagram of the intermediate filtration mechanism;

[0021] Figure 3 This utility model Figure 1 A three-dimensional structural diagram of the transmission mechanism;

[0022] Figure 4 This utility model Figure 1 A bottom-view 3D structural diagram of the central circulation pipe.

[0023] In the diagram: 1. Waste gas treatment tank; 101. Base; 102. Water tank; 103. Filter tank one; 104. Filter tank two; 105. Filter tank three; 106. Tank top; 2. Transmission mechanism; 21. Connecting pipe; 22. Jet nozzle; 23. Pipe; 24. Aeration head; 3. Filtration mechanism; 31. Water pump; 32. Inlet pipe; 33. Outlet pipe; 34. Circulation pipe; 35. Spray head; 4. Filter screen mechanism; 41. Filter screen one; 42. Activated carbon; 43. Filter screen two; 5. Sealing plate; 6. Transmission pipe; 7. Support leg; 8. Air pipe; 9. Air outlet head; 10. Air outlet pipe; 11. Horizontal plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1 to 4As shown, the present invention provides an acrylonitrile production waste gas treatment device, comprising:

[0026] Waste gas treatment tank 1;

[0027] Transmission mechanism 2 is installed inside the waste gas treatment tank 1;

[0028] The filter mechanism 3 includes a water pump 31. The water pump 31 has an inlet connected to an inlet pipe 32 and an outlet connected to an outlet pipe 33. The end of the outlet pipe 33 away from the water pump 31 passes through the waste gas treatment tank 1 and extends into the interior of the waste gas treatment tank 1, where it is connected to a circulation pipe 34. The bottom of the circulation pipe 34 is connected to a spray head 35.

[0029] The filter mechanism 4 includes a first filter screen 41, with activated carbon 42 movably connected to the top of the first filter screen 41, and a second filter screen 43 movably connected to the top of the activated carbon 42.

[0030] refer to Figure 1 The exhaust gas treatment tank 1 includes a base 101. A water tank 102 is fixedly connected to the right side of the top of the base 101. A filter tank 103 is fixedly connected to the left side of the top of the base 101. A filter tank 2 104 is fixedly connected to the top of the filter tank 103. A filter tank 3 105 is fixedly connected to the top of the filter tank 2 104. A tank top 106 is fixedly connected to the top of the filter tank 3 105. The surface of filter screen 1 41 is fixedly connected to the inner wall of filter tank 3 105. The surface of filter screen 2 43 is fixedly connected to the inner wall of filter tank 3 105. One end of the water inlet pipe 32 away from the pump 31 passes through filter tank 3 105 and extends into the interior of filter tank 3 105, communicating with the right side of the circulation pipe 34. The other end of the water inlet pipe 32 away from the pump 31 passes through water tank 102 and extends into the interior of water tank 102. The bottom of the pump 31 is fixedly connected to the top of water tank 102.

[0031] As a technical optimization of this utility model, by setting up an exhaust gas treatment tank 1, the exhaust gas can be treated. The user filters the exhaust gas through the water inside the filter tank 103, then the exhaust gas is treated a second time through the water tank 102, and then the exhaust gas is treated a third time through the filter mechanism 3 and the filter screen mechanism 4 inside the filter tank 3 105, so as to avoid the presence of harmful substances in the gas.

[0032] refer to Figure 3The transmission mechanism 2 includes a connecting pipe 21. One end of the connecting pipe 21 near the filter tank 103 extends into the interior of the filter tank 103 and is connected to an air jet head 22. The top right side of the filter tank 103 is connected to a pipe 23. The end of the pipe 23 away from the filter tank 103 passes through the water tank 102 and extends into the interior of the water tank 102 and is connected to an aeration head 24. A sealing plate 5 is provided inside the inner wall of the filter tank 2 104. The surface of the sealing plate 5 is fixedly connected to the interior of the filter tank 2 104.

[0033] As a technical optimization of this utility model, by setting up a transmission mechanism 2, the exhaust gas can be transmitted. The user transmits the exhaust gas into the interior of the jet head 22 through the connecting pipe 21. The jet head 22 transmits the exhaust gas into the interior of the filter tank 103. Then, the exhaust gas is transmitted into the interior of the aeration head 24 through the pipe 23, so that the aeration head 24 transmits the exhaust gas into the interior of the water tank 102, and the exhaust gas is further treated by the water tank 102.

[0034] refer to Figure 1 The bottom right side of filter tank 104 is connected to a transmission pipe 6. The end of the transmission pipe 6 away from filter tank 104 is connected to the left side of the top of water tank 102. Support legs 7 are fixedly connected to the four corners of the bottom of base 101.

[0035] As a technical optimization of this utility model, by setting up the transmission pipe 6, the water inside the filter tank 104 can be transferred into the water tank 102, so that the water inside the water tank 102 can circulate.

[0036] refer to Figure 3 The top of the water tank 102 is connected to an air pipe 8. The end of the air pipe 8 away from the water tank 102 passes through the filter tank 104 and extends into the interior of the filter tank 104. The bottom of the air pipe 8 is connected to an air outlet 9.

[0037] As a technical optimization of this utility model, by setting an air pipe 8, the exhaust gas inside the water tank 102 can be introduced into the filter tank 104. Then, by setting an air outlet 9, the exhaust gas can be introduced into the filter tank 104, thus making it convenient for users to use.

[0038] refer to Figure 3 The top of the tank 106 is connected to the vent pipe 10, and the inside of the circulation pipe 34 is fixedly connected to the horizontal plate 11.

[0039] As a technical optimization of this utility model, by setting the vent pipe 10, the gas inside the waste gas treatment tank 1 can be discharged, thus making it convenient for users to use. By setting the horizontal plate 11, the stability of the circulation pipe 34 can be increased, preventing the circulation pipe 34 from deforming.

[0040] The working principle and usage process of this utility model are as follows: During use, the user introduces exhaust gas into the jet nozzle 22 via the connecting pipe 21. The jet nozzle 22 then introduces the exhaust gas into the filter tank 103. Next, the exhaust gas is introduced into the aeration head 24 via the pipe 23, which in turn introduces the exhaust gas into the water tank 102. The water tank 102 further treats the exhaust gas. After treatment, the treated exhaust gas is introduced into the filter tank 104 via the air pipe 8 and the air outlet 9, and then... The pump 31 draws water from the water tank 102 through the inlet pipe 32 and transfers the water to the outlet pipe 33. The outlet pipe 33 then transfers the water to the circulation pipe 34, which in turn transfers it to the spray head 35. The spray head 35 discharges the water, which then treats the exhaust gas emitted from the exhaust head 9. After treatment, the exhaust gas is filtered through filter screen 41, then through activated carbon 42 for secondary filtration, and finally through filter screen 43.

[0041] In summary, this acrylonitrile production waste gas treatment device can filter the waste gas through the transmission mechanism 2, perform secondary filtration through the filtration mechanism 3, and then perform tertiary filtration through the filter screen mechanism 4. When the waste gas is discharged, the acrylonitrile waste gas will not be mixed with various harmful substances, making it convenient for users and avoiding pollution of the surrounding environment.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An acrylonitrile production waste gas treatment device, characterized in that, include: Waste gas treatment tank (1); transmission mechanism (2), the transmission mechanism (2) is located inside the waste gas treatment tank (1); filtration mechanism (3), the filtration mechanism (3) includes a water pump (31), the inlet of the water pump (31) is connected to an inlet pipe (32), the outlet of the water pump (31) is connected to an outlet pipe (33), the end of the outlet pipe (33) away from the water pump (31) passes through the waste gas treatment tank (1) and extends into the interior of the waste gas treatment tank (1) and is connected to a circulation pipe (34), the bottom of the circulation pipe (34) is connected to a spray head (35); filter screen mechanism (4), the filter screen mechanism (4) includes a filter screen one (41), the top of the filter screen one (41) is movably connected to activated carbon (42), the top of the activated carbon (42) is movably connected to a filter screen two (43).

2. The acrylonitrile production waste gas treatment device according to claim 1, characterized in that: The exhaust gas treatment tank (1) includes a base (101), a water tank (102) is fixedly connected to the right side of the top of the base (101), a filter tank (103) is fixedly connected to the left side of the top of the base (101), a filter tank (104) is fixedly connected to the top of the filter tank (103), a filter tank (105) is fixedly connected to the top of the filter tank (104), a tank top (106) is fixedly connected to the top of the filter tank (105), and the surface of the filter screen (41) is flush with the surface of the filter tank (41). The inner wall of (105) is fixedly connected, the surface of the second filter screen (43) is fixedly connected to the inner wall of the third filter tank (105), the end of the inlet pipe (32) away from the pump (31) passes through the third filter tank (105) and extends into the interior of the third filter tank (105) and communicates with the right side of the circulation pipe (34), the end of the inlet pipe (32) away from the pump (31) passes through the water tank (102) and extends into the interior of the water tank (102), and the bottom of the pump (31) is fixedly connected to the top of the water tank (102).

3. The acrylonitrile production waste gas treatment device according to claim 2, characterized in that: The transmission mechanism (2) includes a connecting pipe (21), one end of which extends into the interior of the first filter tank (103) and is connected to an air jet head (22). The top right side of the first filter tank (103) is connected to a pipe (23), one end of which passes through the water tank (102) and extends into the interior of the water tank (102) and is connected to an aeration head (24). The inner wall of the second filter tank (104) is provided with a sealing plate (5), the surface of which is fixedly connected to the interior of the second filter tank (104).

4. The acrylonitrile production waste gas treatment device according to claim 3, characterized in that: The bottom right side of the filter tank (104) is connected to a transmission pipe (6). The end of the transmission pipe (6) away from the filter tank (104) is connected to the left side of the top of the water tank (102). The four corners of the bottom of the base (101) are fixedly connected to support legs (7).

5. The acrylonitrile production waste gas treatment device according to claim 4, characterized in that: The top of the water tank (102) is connected to an air pipe (8). One end of the air pipe (8) away from the water tank (102) passes through the filter tank (104) and extends into the interior of the filter tank (104). The bottom of the air pipe (8) is connected to an air outlet (9).

6. The acrylonitrile production waste gas treatment device according to claim 5, characterized in that: The top of the tank top (106) is connected to an air outlet pipe (10), and a horizontal plate (11) is fixedly connected inside the circulation pipe (34).

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