Chemical plant high-temperature waste gas treatment device

Abstract

The invention relates to the technical field of waste gas treatment, and particularly discloses a chemical plant high-temperature waste gas treatment device which comprises a mixing structure, the bottom end of the mixing structure is fixedly connected with a fixing pipe, the end, away from the mixing structure, of the fixing pipe is fixedly connected with a cooling structure, and one side of the top end of the cooling structure is fixedly connected with a first connecting pipe; a feeding pipe is installed and connected to the end, away from the feeding pipe, of the first connecting pipe, a feeding bin opening is fixedly connected to the end, away from the first connecting pipe, of the feeding pipe, a purification structure is fixedly connected to one end of the feeding bin opening, the mixing structure comprises a mixing box, a pipe frame, a connecting cover and a bent pipe, the pipe frame is movably connected into the mixing box in a penetrating mode, and the connecting cover is fixedly connected with the bent pipe. The connecting cover is mounted at one end of the mixing box, and the bent pipe is mounted at one end, far away from the mixing box, of the connecting cover; chemical high-temperature waste gas is cooled in a dilution cooling mode, oxygen is supplemented into the chemical high-temperature waste gas, and follow-up waste gas combustion treatment is facilitated.

Description

Technical Field

[0001] The invention belongs to the technical field of waste gas treatment, and in particular relates to a high-temperature waste gas treatment device for a chemical plant. Background Art

[0002] High-temperature exhaust gas from chemical plants mainly comes from combustion equipment, chemical reaction processes, smelting processes, etc. For example, combustion equipment such as boilers and incinerators will produce high-temperature exhaust gas when burning fuel. Chemical reactions in certain chemical production will release a large amount of heat energy, causing the exhaust gas temperature to rise. High-temperature exhaust gas will also be produced during the smelting process of steel and non-ferrous metals.

[0003] In the process of waste gas treatment, the temperature of the waste gas must first be lowered through a cooling system to meet the requirements of the subsequent treatment process, and then the harmful substances in the waste gas are removed or converted by equipment. Finally, the waste gas that has been harmlessly treated is discharged into the atmosphere. However, in the operation of existing waste gas treatment devices, in order to achieve full combustion of the waste gas, additional oxygen is often required. Unfortunately, the cooling treatment of high-temperature waste gas and the delivery of oxygen are usually two relatively independent processes. This design limits the efficiency of chemical plants in treating high-temperature waste gas to a certain extent. Specifically, due to the separation of cooling and oxygen delivery, it may lead to increased energy consumption in the treatment process, prolonged treatment time, and a decrease in overall treatment efficiency. Summary of the invention

[0004] The object of the present invention is to provide a high-temperature waste gas treatment device for a chemical plant to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A high-temperature waste gas treatment device for a chemical plant, comprising:

[0007] Hybrid structure;

[0008] The bottom end of the mixing structure is fixedly connected to a fixed pipe, one end of the fixed pipe away from the mixing structure is fixedly connected to a cooling structure, one side of the top of the cooling structure is fixedly connected to a first connecting pipe, one end of the first connecting pipe away from the feeding pipe is installed and connected to the feeding pipe, one end of the feeding pipe away from the first connecting pipe is fixedly connected to a feeding bin port, and one end of the feeding bin port is fixedly connected to a purification structure;

[0009] The mixing structure comprises a mixing box, a pipe rack, a connecting cover and a bent pipe, wherein the pipe rack is movably connected in the mixing box, the connecting cover is installed at one end of the mixing box, the bent pipe is installed at the end of the connecting cover away from the mixing box, and the mixing box is installed together with the upper cover;

[0010] The cooling structure includes a second connecting tube, a heat dissipation tube and an annular tube. The second connecting tube is fixedly inserted and connected to the middle outer surface of the heat dissipation tube. A plurality of inserted tubes are fixedly inserted and connected at equal distances on the lower part of the outer surface of the second connecting tube. The annular tube is fixedly connected to one end of the plurality of inserted tubes away from the second connecting tube. The annular tube is fixedly connected to the fixed tube.

[0011] Preferably, an upper cover is installed on the top of the mixing structure, an inlet pipe is fixedly connected to the top of the upper cover, a flow rate detector is installed at one end of the mixing structure, four support rods are fixedly connected to the other end of the mixing structure at equal distances, and a reflux pipe is fixedly and interlacedly connected between the feed bin port and the purification structure.

[0012] Preferably, the mixing box includes a box body, a through slot, a limit frame and a stabilizing plate. The through slot is opened at one end of the box body. Two limit frames are provided, and the two limit frames are respectively fixedly connected to both sides of the inner wall of the box body. The stabilizing plate is fixedly connected to the upper part of the inner wall of the box body. A plurality of through holes are opened at equal distances at the top of the stabilizing plate. The through slot is communicated with the inside of the connecting cover.

[0013] Preferably, the box body and the pipe rack are movably interlaced, and the two limit racks are tightly attached to the pipe rack, and the through holes are movably interlaced and connected with the lower part of the pipe rack.

[0014] Preferably, the heat dissipation pipe includes a pipe body, a heat dissipation fan, a fixing plate and a heat-conducting annular sheet. The heat dissipation fan is installed on the upper part of the pipe body, the fixing plate is fixedly inserted and connected to the middle outer surface of the pipe body, a plurality of heat dissipation fins are fixedly penetrated and connected at equal distances on the lower outer surface of the pipe body, the heat-conducting annular sheet is fixedly connected to one end of the plurality of heat dissipation fins in the pipe body, a plurality of outlet holes are opened at equal distances on the top of the fixing plate, and the pipe body is fixedly inserted and connected in the second connecting pipe.

[0015] Preferably, the plurality of interpenetrating tubes are movably interpenetratingly connected between the plurality of heat sinks, and the second connecting tube is fixedly interpenetratingly connected to the first connecting tube.

[0016] Preferably, the purification structure includes a purification box, an export plate, a purifier, a purification detector and an export pipe, the export plate is fixedly connected to one side of the top of the purification box, the purifier is movably connected to the other side of the top of the purification box, the purification detector is installed inside the purification box, the export pipe is fixedly connected to the middle of one end of the purification detector, and the purification box is fixedly connected to the feed bin port.

[0017] Preferably, one end of the support rod away from the mixing structure is fixedly connected to the outer surface of the second connecting pipe.

[0018] Preferably, one end of the reflux pipe passes through one end of the purification box and is fixedly connected to the purification detector.

[0019] Preferably, the feed port and the purification box are internally communicated.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] (1) By setting a bent pipe, a connecting cover, a pipe rack, a second connecting pipe, an interpenetrating pipe, a heat dissipation fan, a heat sink and a heat-conducting annular sheet, the exhaust gas is evenly distributed to the lower part of the box through the pipes in the pipe rack. In this process, the cold air enters the bent pipe through the flow rate detector, and then the cold air is brought into the mixing box with the help of the connecting cover, so that the cold air and the exhaust gas are introduced into the mixing box at the same time, thereby reducing the temperature of the high-temperature exhaust gas, and supplementing air as an oxidant while cooling. The mixed gas continues to enter the annular pipe through the pipe rack, and then enters the heat sink area in the second connecting pipe through the interpenetrating pipe for further cooling, thereby using the dilution cooling method to cool the chemical high-temperature exhaust gas, and at the same time supplementing oxygen into the chemical high-temperature exhaust gas, which is beneficial to the subsequent exhaust gas combustion treatment.

[0022] (2) By setting up a purifier, a purification detector and a reflux pipe, the gas is sent into the purification box through the feed port. In the purification box, the gas is purified by the purifier and detected by the purification detector. The gas that passes the detection is discharged to the other side of the purification box through the outlet pipe and discharged through the outlet plate, while the gas that fails the detection is returned to the feed port through the reflux pipe for re-purification, thereby improving the purification efficiency and quality of the gas and creating favorable conditions for the subsequent discharge of the gas.

[0023] (3) By providing the upper cover, the pipe rack and the limit rack, the mixing box and the upper cover can be disassembled, and then the pipe rack can be pulled out to be removed from the mixing box so as to clean the pipe rack and prevent internal blockage, thereby improving the overall exhaust gas treatment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A perspective view of the present invention;

[0025] Figure 2 is a cross-sectional view of the hybrid structure of the present invention;

[0026] Figure 3 is a cross-sectional view of a mixing box of the present invention;

[0027] Figure 4 A three-dimensional diagram of the cooling structure of the present invention;

[0028] Figure 5 It is a connection schematic diagram of the heat dissipation pipe of the present invention;

[0029] Figure 6 is a cross-sectional view of the purification structure of the present invention;

[0030] In the figure: 1, mixing structure; 2, upper cover; 3, inlet pipe; 4, flow rate detector; 5, support rod; 6, cooling structure; 7, first connecting pipe; 8, feed pipe; 9, purification structure; 10, feed bin; 11, reflux pipe; 12, fixed pipe; 101, mixing box; 102, pipe rack; 103, connecting cover; 104, elbow; 111, box body; 112, groove; 113, limit frame; 114, stabilizing plate; 115, perforation; 61, second connecting pipe; 62, heat dissipation pipe; 63, interlaced pipe; 64, annular pipe; 621, pipe body; 622, heat dissipation fan; 623, heat sink; 624, fixed plate; 625, outlet hole; 626, heat-conducting annular sheet; 91, purification box; 92, outlet plate; 93, purifier; 94, purification detector; 95, outlet pipe. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Embodiment 1:

[0033] See also Figure 1 - Figure 6 As shown, a high-temperature waste gas treatment device for a chemical plant comprises:

[0034] Hybrid structure 1;

[0035] The bottom end of the mixing structure 1 is fixedly connected with a fixed pipe 12, one end of the fixed pipe 12 away from the mixing structure 1 is fixedly connected with a cooling structure 6, one side of the top of the cooling structure 6 is fixedly connected with a first connecting pipe 7, one end of the first connecting pipe 7 away from the feeding pipe 8 is installed and connected with the feeding pipe 8, one end of the feeding pipe 8 away from the first connecting pipe 7 is fixedly connected with a feeding port 10, and one end of the feeding port 10 is fixedly connected with a purification structure 9;

[0036] The mixing structure 1 includes a mixing box 101, a pipe rack 102, a connecting cover 103 and a curved pipe 104. The pipe rack 102 is movably connected in the mixing box 101. The connecting cover 103 is installed at one end of the mixing box 101. The curved pipe 104 is installed at the end of the connecting cover 103 away from the mixing box 101. The mixing box 101 is installed together with the upper cover 2.

[0037] The cooling structure 6 includes a second connecting tube 61, a heat dissipation tube 62 and an annular tube 64. The second connecting tube 61 is fixedly inserted and connected to the middle outer surface of the heat dissipation tube 62. A plurality of interpenetrating tubes 63 are fixedly inserted and connected at equal distances at the lower portion of the outer surface of the second connecting tube 61. The annular tube 64 is fixedly connected to one end of the plurality of interpenetrating tubes 63 away from the second connecting tube 61. The annular tube 64 is fixedly connected to the fixed tube 12.

[0038] An upper cover 2 is installed at the top of the mixing structure 1, and an inlet pipe 3 is fixedly connected to the top of the upper cover 2. A flow rate detector 4 is installed at one end of the mixing structure 1, and four support rods 5 are fixedly connected at the other end of the mixing structure 1 at equal distances. A reflux pipe 11 is fixedly and interlaced between the feed bin port 10 and the purification structure 9.

[0039] Depend on Figure 1 - Figure 3 It can be seen that the mixing box 101 includes a box body 111, a through slot 112, a limit frame 113 and a stabilizing plate 114. The through slot 112 is opened at one end of the box body 111. Two limit frames 113 are provided, and the two limit frames 113 are respectively fixedly connected to the two sides of the inner wall of the box body 111. The stabilizing plate 114 is fixedly connected to the upper part of the inner wall of the box body 111. A plurality of through holes 115 are equidistantly opened at the top of the stabilizing plate 114. The through slot 112 is communicated with the inside of the connecting cover 103.

[0040] As can be seen from the above, the upper cover 2 guides the exhaust gas to the upper area inside the box 111, and then the exhaust gas is evenly distributed and introduced into the lower part of the box 111 through the piping system in the pipe rack 102. While the exhaust gas is being introduced, one end of the flow velocity detector 4 is connected to the cold air pipe, which is responsible for transporting the cold air to the flow velocity detector 4, and then through the ingenious design of the bend 104, the cold air is brought into the mixing box 101 through the connecting cover 103, ensuring that the cold air and the exhaust gas can be introduced into the mixing box 101 at the same time, realizing the effective mixing of the cold air and the high-temperature exhaust gas, thereby achieving the purpose of cooling the exhaust gas. During the cooling process, the introduction of cold air also plays a role in supplementing air, providing the necessary oxidant for the chemical reaction in the exhaust gas, and promoting the effective treatment of the exhaust gas. The whole process is both efficient and environmentally friendly, ensuring the quality and efficiency of exhaust gas treatment.

[0041] Preferably, the box body 111 and the pipe rack 102 are movably interlaced, and the two limit frames 113 are both tightly attached to the pipe rack 102 , and the through holes 115 are both movably interlaced and connected with the lower part of the pipe rack 102 .

[0042] As can be seen from the above, the limiting frames 113 are closely attached to the pipe rack 102 , so that the pipe rack 102 is supported by the limiting frames 113 , and the through holes 115 are inserted and connected with the pipe rack 102 , thereby improving the stability of the pipe rack 102 .

[0043] Embodiment 2:

[0044] refer to Figure 4 and Figure 5 As shown, the heat dissipation pipe 62 includes a tube body 621, a heat dissipation fan 622, a fixing plate 624 and a heat-conducting annular sheet 626. The heat dissipation fan 622 is installed in the upper inner part of the tube body 621. The fixing plate 624 is fixedly inserted and connected to the middle outer surface of the tube body 621. A plurality of heat dissipation fins 623 are fixedly penetrated and connected at equal distances on the lower outer surface of the tube body 621. The heat-conducting annular sheet 626 is fixedly connected to one end of the plurality of heat dissipation fins 623 in the tube body 621. A plurality of outlet holes 625 are opened at equal distances on the top of the fixing plate 624. The tube body 621 is fixedly inserted and connected in the second connecting tube 61.

[0045] As can be seen from the above, the mixed gas first enters the annular tube 64, then smoothly enters the second connecting tube 61 through the insertion tube 63, and reaches the area where the heat sink 623 is located, so as to carry out a more in-depth cooling treatment. At this time, the heat dissipation fan 622 is started, and the heat dissipation fan 622 continuously introduces the outside air into the tube body 621, thereby effectively dissipating the heat of the heat-conducting annular sheet 626 arranged around the tube body 621. When the mixed gas flows through the heat sink 623, the heat it carries will be quickly transferred to the heat-conducting annular sheet 626 through the heat sink 623, and the heat-conducting annular sheet 626 will be cooled by the continuously circulating air. This process forms an efficient heat dissipation cycle, which can continuously dissipate the heat of the mixed gas to ensure that its temperature is effectively controlled.

[0046] Preferably, the plurality of interpenetrating tubes 63 are movably interpenetratingly connected between the plurality of heat sinks 623, and the second connecting tube 61 is fixedly interpenetratingly connected with the first connecting tube 7;

[0047] One end of the support rod 5 away from the mixing structure 1 is fixedly connected to the outer surface of the second connecting pipe 61 .

[0048] As can be seen from the above, the insertion tube 63 is inserted between the heat sinks 623 so that the gas discharged from the insertion tube 63 can be further cooled through the heat sink 623, and the support rod 5 is connected to the second connecting tube 61, so that the second connecting tube 61 can be stably supported.

[0049] Embodiment three:

[0050] refer to Figure 1 and Figure 6As shown, the purification structure 9 includes a purification box 91, an export plate 92, a purifier 93, a purification detector 94 and an export pipe 95. The export plate 92 is fixedly inserted and connected to one side of the top of the purification box 91, the purifier 93 is movably inserted and connected to the other side of the top of the purification box 91, the purification detector 94 is installed inside the purification box 91, the export pipe 95 is fixedly connected to the middle of one end of the purification detector 94, and the purification box 91 is fixedly connected to the feed port 10.

[0051] As can be seen from the above, the feed port 10 introduces the gas into the purification box 91, the gas is purified through the purifier 93, the purified gas is detected by the purification detector 94, the qualified gas is introduced into the other side of the purification box 91 through the outlet pipe 95, and is exported through the outlet plate 92, and the unqualified gas is introduced into the feed port 10 again through the reflux pipe 11, and is purified again through the feed port 10, so as to remove harmful substances in the exhaust gas.

[0052] Preferably, one end of the reflux pipe 11 passes through one end of the purification box 91 and is fixedly connected to the purification detector 94;

[0053] The feed port 10 and the purification box 91 are internally communicated.

[0054] As can be seen from the above, by providing the reflux pipe 11, unqualified gas can be purified for a second time, and the feed port 10 and the interior of the purification box 91 are connected to facilitate the introduction of gas.

[0055] Furthermore, the present invention is designed and applied in the cooling and purification treatment of high-temperature exhaust gas in chemical plants. The exhaust gas is introduced into the upper cover 2 through the inlet pipe 3, and then the upper cover 2 guides the exhaust gas to the upper area of ​​the box 111. The exhaust gas is evenly distributed to the lower part of the box 111 through the pipe in the pipe rack 102. In this process, one end of the flow velocity detector 4 is connected to the cold air pipe, and the cold air enters the elbow 104 through the flow velocity detector 4. The elbow 104 then uses the connecting cover 103 to bring the cold air into the mixing box 101, so that the cold air and the exhaust gas are introduced into the mixing box 101 at the same time, thereby reducing the temperature of the high-temperature exhaust gas, and supplementing air as an oxidant while cooling. The mixed gas enters the annular pipe 64, and then enters the heat sink 623 area in the second connecting pipe 61 through the interlaced pipe 63 for further cooling. The cooled gas enters the first connecting pipe 7 through multiple outlet holes 625, and then is introduced into the feed pipe 8 by the first connecting pipe 7, and finally enters the feed port 10 through the feed pipe 8, and is sent to the purification box 91 from the feed port 10. In the purification box 91, the gas is purified by the purifier 93 and detected by the purification detector 94. The qualified gas is discharged to the other side of the purification box 91 through the outlet pipe 95 and discharged through the outlet plate 92, while the unqualified gas is returned to the feed port 10 through the reflux pipe 11 for re-purification;

[0056] In order to carry out maintenance operations, the mixing box 101 and its upper cover 2 can be easily disassembled, and then the pipe rack 102 can be easily pulled out and completely removed from the inside of the mixing box 101. This step is crucial for cleaning the pipe rack 102. Through thorough cleaning, blockage inside it can be effectively prevented, thereby ensuring the smooth operation of the mixing box and the entire system. In addition, regular disassembly and cleaning can also extend the service life of the equipment, reduce the failure rate caused by blockage, and improve the overall exhaust gas treatment efficiency.

[0057] The standard parts used in the present invention can all be purchased from the market, and the special-shaped parts can all be customized according to the description and the drawings. The specific connection methods of each part all adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0058] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0059] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0060] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-temperature waste gas treatment device for a chemical plant, characterized in that: include: Hybrid structure (1); The bottom end of the mixing structure (1) is fixedly connected to a fixed pipe (12), one end of the fixed pipe (12) away from the mixing structure (1) is fixedly connected to a cooling structure (6), one side of the top end of the cooling structure (6) is fixedly connected to a first connecting pipe (7), one end of the first connecting pipe (7) away from the feeding pipe (8) is installed and connected to the feeding pipe (8), one end of the feeding pipe (8) away from the first connecting pipe (7) is fixedly connected to a feeding bin (10), and one end of the feeding bin (10) is fixedly connected to a purification structure (9); The mixing structure (1) comprises a mixing box (101), a pipe rack (102), a connecting cover (103) and a curved pipe (104); the pipe rack (102) is movably connected in the mixing box (101); the connecting cover (103) is installed at one end of the mixing box (101); the curved pipe (104) is installed at one end of the connecting cover (103) away from the mixing box (101); and the mixing box (101) is installed together with the upper cover (2); The cooling structure (6) comprises a second connecting tube (61), a heat dissipation tube (62) and an annular tube (64); the second connecting tube (61) is fixedly inserted and connected to the middle outer surface of the heat dissipation tube (62); a plurality of inserted tubes (63) are fixedly inserted and connected at equal distances on the lower portion of the outer surface of the second connecting tube (61); the annular tube (64) is fixedly connected to one end of the plurality of inserted tubes (63) away from the second connecting tube (61); and the annular tube (64) is fixedly connected to the fixed tube (12).

2. A chemical plant high temperature waste gas treatment device according to claim 1, characterized in that: An upper cover (2) is installed at the top of the mixing structure (1), and an inlet pipe (3) is fixedly connected to the top of the upper cover (2). A flow rate detector (4) is installed at one end of the mixing structure (1), and four support rods (5) are fixedly connected at equal distances at the other end of the mixing structure (1). A return pipe (11) is fixedly interlaced and connected between the feed bin port (10) and the purification structure (9).

3. A chemical plant high temperature waste gas treatment device according to claim 2, characterized in that: The mixing box (101) comprises a box body (111), a through slot (112), a limiting frame (113) and a stabilizing plate (114); the through slot (112) is provided at one end of the box body (111); two limiting frames (113) are provided, and the two limiting frames (113) are respectively fixedly connected to the two sides of the inner wall of the box body (111); the stabilizing plate (114) is fixedly connected to the upper part of the inner wall of the box body (111); a plurality of through holes (115) are equidistantly provided at the top of the stabilizing plate (114); and the through slot (112) is communicated with the interior of the connecting cover (103).

4. A chemical plant high temperature waste gas treatment device according to claim 3, characterized in that: The box body (111) and the pipe rack (102) are movably interlaced, and the two limit racks (113) are both tightly attached to the pipe rack (102), and the through holes (115) are both movably interlaced and connected with the lower part of the pipe rack (102).

5. The high-temperature waste gas treatment device for a chemical plant according to claim 1, characterized in that: The heat dissipation pipe (62) comprises a pipe body (621), a heat dissipation fan (622), a fixing plate (624) and a heat-conducting annular sheet (626); the heat dissipation fan (622) is installed in the upper inner part of the pipe body (621); the fixing plate (624) is fixedly inserted and connected to the middle outer surface of the pipe body (621); a plurality of heat dissipation fins (623) are fixedly penetrated and connected to the lower outer surface of the pipe body (621) at equal distances; the heat-conducting annular sheet (626) is fixedly connected to one end of the plurality of heat dissipation fins (623) in the pipe body (621); a plurality of outlet holes (625) are opened at equal distances at the top end of the fixing plate (624); and the pipe body (621) is fixedly inserted and connected to the second connecting pipe (61).

6. A chemical plant high temperature waste gas treatment device according to claim 1, characterized in that: The plurality of interpenetrating tubes (63) are all movably interpenetratingly connected between the plurality of heat sinks (623), and the second connecting tube (61) and the first connecting tube (7) are fixedly interpenetratingly connected together.

7. A chemical plant high temperature waste gas treatment device according to claim 1, characterized in that: The purification structure (9) comprises a purification box (91), an outlet plate (92), a purifier (93), a purification detector (94) and an outlet pipe (95); the outlet plate (92) is fixedly connected to one side of the top of the purification box (91); the purifier (93) is movably connected to the other side of the top of the purification box (91); the purification detector (94) is installed inside the purification box (91); the outlet pipe (95) is fixedly connected to the middle of one end of the purification detector (94); and the purification box (91) is fixedly connected to the feed bin port (10).

8. A chemical plant high temperature waste gas treatment device according to claim 2, characterized in that: One end of the support rod (5) away from the mixing structure (1) is fixedly connected to the outer surface of the second connecting pipe (61).

9. A chemical plant high temperature waste gas treatment device according to claim 2, characterized in that: One end of the reflux pipe (11) passes through one end of the purification box (91) and is fixedly connected to the purification detector (94).

10. The high-temperature waste gas treatment device for a chemical plant according to claim 1, characterized in that: The feed port (10) and the purification box (91) are internally communicated.

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