Water washing type tail gas treatment device

Abstract

The utility model belongs to the technical field of tail gas treatment devices, and discloses a washing type tail gas treatment device which comprises a combustion chamber, a cooling chamber and a spraying chamber. The cooling chamber comprises an air seal assembly, a liquid seal assembly and a cooling cylinder. The air seal assembly comprises a first conical funnel and a second conical funnel, a conical ring cavity is formed between the first conical funnel and the second conical funnel, and an air inlet is formed in the outer wall of the conical ring cavity. The liquid sealing assembly comprises a first barrel and a second barrel, and bottom discharge spouts of the first conical funnel and the second conical funnel penetrate through the first barrel; a gap is reserved between the top end of the first barrel and the outer wall of the second conical funnel. An annular cavity is formed between the first barrel and the second barrel, a plurality of liquid inlets are evenly distributed in the circumferential direction of the outer wall of the second barrel and communicated with the annular cavity, and the axial directions of the liquid inlets deviate from the radial direction of the second barrel. And the cooling barrel is communicated with the first barrel and the spraying chamber respectively. The washing type tail gas treatment device has a good tail gas cooling treatment effect, so that the working efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of tail gas treatment devices, in particular to a water-washing tail gas treatment device. Background Art

[0002] Tail gas treatment device refers to a device that can treat hazardous waste gases to meet emission standards. Tail gas treatment can bring extensive, lasting and multi-faceted ecological, social and economic benefits. Therefore, from the perspective of sustainable development, it is very important to treat hazardous waste gases.

[0003] At present, the commonly used water-washing tail gas treatment device is that the tail gas first passes through the combustion chamber, where it is heated, burned, decomposed, and oxidized; then enters the cooling chamber, where it is initially cooled; then enters the spray chamber, where it is sprayed with water to filter and precipitate the impurities after the tail gas is burned, and at the same time, some water-soluble gases can be dissolved and precipitated; finally, it is discharged through the exhaust chamber. However, the cooling treatment effect of the cooling chamber of the water-washing tail gas treatment device is not good, which makes the tail gas treatment work efficiency low.

[0004] Therefore, it is urgent to propose a water-washing tail gas treatment device to solve the above problems. Utility Model Content

[0005] The utility model provides a water-washing tail gas treatment device, which has a good tail gas cooling treatment effect and high working efficiency.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] A water-washing tail gas treatment device comprises a combustion chamber, a cooling chamber and a spray chamber which are connected in sequence, wherein the cooling chamber comprises:

[0008] An air seal assembly is sealed and connected to the combustion chamber, comprising a first conical funnel and a second conical funnel arranged from the inside to the outside, wherein the top edge of the first conical funnel is connected to the inner wall of the bottom of the combustion chamber, a conical annular cavity is formed between the first conical funnel and the second conical funnel, and an air inlet is provided on the outer wall of the conical annular cavity;

[0009] A liquid seal assembly, comprising a first cylinder and a second cylinder which are arranged from the inside to the outside and connected at the bottom, the top of the second cylinder is sealedly connected to the top of the second conical funnel, the bottom nozzles of the first conical funnel and the second conical funnel are both penetrated through the first cylinder and are connected to the first cylinder, a gap is left between the top of the first cylinder and the outer wall of the second conical funnel, an annular cavity is formed between the first cylinder and the second cylinder, a plurality of liquid inlets are evenly distributed along the circumference of the outer wall of the second cylinder to connect to the annular cavity, and the axial directions of the plurality of liquid inlets are consistent with the radial direction of the second cylinder;

[0010] A cooling cylinder, two ends of which are respectively connected to the first cylinder and the spray chamber.

[0011] As an optional technical solution for the water-wash type exhaust gas treatment device, the gas sealing assembly also includes a gas sealing flange, and the liquid sealing assembly also includes a water sealing flange. The bottom of the gas sealing flange is provided with a first annular boss, and the top of the water sealing flange is provided with a first annular positioning groove, and the first boss is inserted into the first positioning groove.

[0012] As an optional technical solution of the water-wash type exhaust gas treatment device, the water-wash type exhaust gas treatment device also includes a first sealing ring, and the gas sealing flange and the water sealing flange are sealed by the first sealing ring.

[0013] As an optional technical solution for the water-washed exhaust gas treatment device, the water-washed exhaust gas treatment device also includes a flange plate, a second annular boss is provided at the bottom of the flange plate, and a second annular positioning groove is provided at the top of the gas sealing flange, and the second boss is inserted into the second positioning groove.

[0014] As an optional technical solution of the water-wash type exhaust gas treatment device, the water-wash type exhaust gas treatment device also includes a second sealing ring, and the flange plate and the gas sealing flange are sealed by the second sealing ring.

[0015] As an optional technical solution of the water-wash type exhaust gas treatment device, the gas sealing assembly also includes an air inlet nozzle, which is connected to the air inlet.

[0016] As an optional technical solution of the water-wash type exhaust gas treatment device, the liquid seal assembly also includes a liquid inlet pipe, and the liquid inlet pipe is connected to the liquid inlet.

[0017] As an optional technical solution for the water-wash type exhaust gas treatment device, the side wall of the combustion chamber is a double-layer structure, and the middle is filled with aerogel thermal insulation material.

[0018] As an optional technical solution for the water-wash type exhaust gas treatment device, a plurality of heating rods are arranged in the combustion chamber, and the heating rods are covered with detachable protective covers.

[0019] As an optional technical solution for the water-washed exhaust gas treatment device, the water-washed exhaust gas treatment device also includes an exhaust chamber connected to the spray chamber, and the exhaust chamber is filled with ball rings.

[0020] Beneficial effects of the utility model: The water-washed exhaust gas treatment device provided by the utility model includes a combustion chamber, a cooling chamber and a spray chamber, wherein the cooling chamber includes an air seal assembly, a liquid seal assembly and a cooling cylinder. The air seal assembly includes a first conical funnel and a second conical funnel arranged from the inside to the outside, a conical annular cavity is formed between the first conical funnel and the second conical funnel, and an air inlet is provided on the outer wall of the conical annular cavity; the liquid seal assembly includes a first cylinder and a second cylinder arranged from the inside to the outside and connected at the bottom, the top edge of the first conical funnel is connected to the inner wall of the bottom of the combustion chamber, the top of the second cylinder is sealed and connected to the top of the second conical funnel, and the bottom nozzles of the first conical funnel and the second conical funnel are both penetrated through the first cylinder and are connected to the first cylinder; the cooling cylinder is respectively connected to the first cylinder and the spray chamber. The first conical funnel adopts a funnel-shaped structure design, which has a guiding effect on the tail gas, so that the tail gas after combustion and decomposition in the combustion chamber can quickly and smoothly enter the first cylinder for the next step of processing, and prevent the tail gas processed in the first cylinder from flowing back to the combustion chamber, thereby speeding up the processing speed of the tail gas and improving work efficiency. The conical annular cavity can allow the nitrogen entering from the air inlet to slowly enter the first cylinder and then enter the cooling cylinder, so that the nitrogen in the cooling cylinder can fully contact and react with the tail gas, thereby increasing the processing speed of the tail gas and improving work efficiency. There is a gap between the top of the first cylinder and the outer wall of the second conical funnel, and an annular cavity is formed between the first cylinder and the second cylinder. Multiple liquid inlets are evenly distributed along the circumference of the outer wall of the second cylinder to connect the annular cavity, and the axial direction of the multiple liquid inlets deviates from the radial direction of the second cylinder. The water entering the annular cavity from the liquid inlet can cool the outer wall of the first cylinder, and due to the deviation of the direction of the liquid inlet and the gap setting, the water can flow in the annular cavity and then enter the first cylinder through the gap, and flow into the spray chamber along the inner wall of the first cylinder and the cooling cylinder. The circulating water can be used to cool the first cylinder and the outer wall of the cooling cylinder, and the cooling is uniform and efficient, thereby cooling the exhaust gas uniformly and efficiently. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0022] Figure 1 This is a schematic diagram of the internal structure of the cooling chamber of the water-wash type tail gas treatment device provided in the embodiment of the utility model;

[0023] Figure 2 It is a structural schematic diagram of a cooling chamber of a water-wash type exhaust gas treatment device provided in an embodiment of the utility model.

[0024] In the figure: 100, air seal assembly; 110, first conical funnel; 120, second conical funnel; 130, air seal flange; 131, first boss; 140, air inlet nozzle; 101, conical annular cavity; 102, second positioning groove; 200, liquid seal assembly; 210, first cylinder; 220, second cylinder; 230, water seal flange; 240, liquid inlet pipe; 201, annular cavity; 202, first positioning groove; 300, cooling cylinder; 400, first sealing ring; 500, flange; 510, second boss; 600, second sealing ring. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0026] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" 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.

[0027] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0028] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0029] The utility model provides a water-washing tail gas treatment device, which has a good tail gas cooling treatment effect and high working efficiency.

[0030] The water-washing tail gas treatment device comprises a combustion chamber, a cooling chamber and a spray chamber which are connected in sequence. Figure 1 and Figure 2 As shown, the cooling chamber includes an air seal assembly 100, a liquid seal assembly 200 and a cooling cylinder 300. The air seal assembly 100 is sealed and connected to the combustion chamber, and includes a first conical funnel 110 and a second conical funnel 120 arranged from the inside to the outside, and the top edge of the first conical funnel 110 is connected to the inner wall of the bottom of the combustion chamber. A conical annular cavity 101 is formed between the first conical funnel 110 and the second conical funnel 120, and an air inlet is provided on the outer wall of the conical annular cavity 101. The liquid seal assembly 200 includes a first cylinder 210 and a second cylinder 220 arranged from the inside to the outside and connected at the bottom, and the top of the second cylinder 220 is sealed and connected to the top of the second conical funnel 120. The bottom nozzles of the first conical funnel 110 and the second conical funnel 120 are both penetrated through the first cylinder 210 and are connected to the first cylinder 210; a gap is left between the top of the first cylinder 210 and the outer wall of the second conical funnel 120. An annular cavity 201 is formed between the first cylinder 210 and the second cylinder 220. A plurality of liquid inlets are evenly distributed along the circumference of the outer wall of the second cylinder 220 to connect to the annular cavity 201, and the axial directions of the plurality of liquid inlets deviate from the radial direction of the second cylinder 220. Both ends of the cooling cylinder 300 are connected to the first cylinder 210 and the spray chamber, respectively.

[0031] The first conical funnel 110 adopts a funnel-shaped structure design, which has a guiding effect on the tail gas, so that the tail gas after combustion and decomposition in the combustion chamber quickly and smoothly enters the first cylinder 210 for the next step of processing, and prevents the tail gas processed in the first cylinder 210 from flowing back to the combustion chamber, thereby accelerating the processing speed of the tail gas and improving work efficiency. The conical annular cavity 101 can allow the nitrogen entering from the air inlet to slowly enter the first cylinder 210 and then enter the cooling cylinder 300, so that the nitrogen in the cooling cylinder 300 is fully contacted and reacted with the tail gas, thereby increasing the processing speed of the tail gas and improving work efficiency. The water entering the annular cavity 201 from the liquid inlet can cool the outer wall of the first cylinder 210, and due to the deviation of the direction of the liquid inlet and the gap setting, the water can flow in the annular cavity 201 and then enter the first cylinder 210 through the gap, and flow into the spray chamber along the inner walls of the first cylinder 210 and the cooling cylinder 300. The circulating water can be used to cool the outer walls of the first cylinder 210 and the cooling cylinder 300, and the cooling is uniform and efficient, thereby cooling the exhaust gas uniformly and efficiently.

[0032] The water-washing tail gas treatment device can quickly and efficiently treat the tail gas through the combination of nitrogen and water and the setting of a cooling chamber structure, thereby achieving high working efficiency.

[0033] Furthermore, the gas seal assembly 100 further includes a gas seal flange 130, and the liquid seal assembly 200 further includes a water seal flange 230. The bottom of the gas seal flange 130 is provided with an annular first boss 131, and the top of the water seal flange 230 is provided with an annular first positioning groove 202, and the first boss 131 is plugged into the first positioning groove 202. The gas seal flange 130 and the water seal flange 230 are used for connecting the pipelines, and the connection is simple and convenient. The first boss 131 and the first positioning groove 202 are provided, so that the gas seal flange 130 and the water seal flange 230 can be snap-fitted and positioned, which is convenient and quick, and increases the connection strength.

[0034] Furthermore, in order to increase the sealing performance of the water-washed exhaust gas treatment device, the water-washed exhaust gas treatment device further includes a first sealing ring 400 , and the gas sealing flange 130 and the water sealing flange 230 are sealed by the first sealing ring 400 .

[0035] It is worth noting that the radial dimension of the first sealing ring 400 is smaller than the radial dimension of the first boss 131, that is, the first sealing ring 400 is located inside the annular first boss 131. In this embodiment, two first sealing rings 400 are provided inside and outside.

[0036] Similarly, the water-washing exhaust gas treatment device also includes a flange 500, a second annular boss 510 is provided at the bottom of the flange 500, a second annular positioning groove 102 is provided at the top of the gas sealing flange 130, and the second boss 510 is plugged into the second positioning groove 102. The gas sealing flange 130 and the flange 500 are used for connecting the pipelines, and the connection is simple and convenient. The second boss 510 and the second positioning groove 102 are provided, so that the gas sealing flange 130 and the flange 500 can be clamped and positioned, which is convenient and quick, and increases the connection strength.

[0037] Furthermore, in order to increase the sealing performance of the water-washed exhaust gas treatment device, the water-washed exhaust gas treatment device further includes a second sealing ring 600 , and the gas sealing flange 130 and the flange plate 500 are sealed by the second sealing ring 600 .

[0038] Similarly, the radial dimension of the second sealing ring 600 is smaller than the radial dimension of the second boss 510, that is, the second sealing ring 600 is located inside the annular shape of the second boss 510. In this embodiment, two second sealing rings 600 are provided inside and outside.

[0039] In this embodiment, the gas sealing assembly 100 further includes an air inlet nozzle 140 , which is connected to the air inlet port to facilitate the introduction of nitrogen into the gas sealing assembly 100 .

[0040] In this embodiment, the liquid sealing assembly 200 further includes a liquid inlet pipe 240 , which is connected to the liquid inlet port to facilitate the introduction of water into the liquid sealing assembly 200 .

[0041] The combustion chamber side wall of the water-washed exhaust gas treatment device has a double-layer structure, with aerogel thermal insulation material filled in the middle. The temperature resistance can reach 900 degrees Celsius, and the combustion chamber has high thermal insulation performance.

[0042] Furthermore, the inner wall of the combustion chamber is made of 1200-degree high-temperature resistant stainless steel 310S, and the outer wall is made of stainless steel 304 with a sandblasted surface. The combination of the inner wall, the middle layer and the outer wall is highly efficient and energy-saving, with a large exhaust gas treatment capacity, high work efficiency and low operation and maintenance costs.

[0043] In this embodiment, a plurality of heating rods are arranged in the combustion chamber of the water-wash type exhaust gas treatment device. The heating rods are covered with detachable protective covers, which are detachably installed for the convenience of cleaning and maintenance by users.

[0044] The water-wash type tail gas treatment device also includes an exhaust chamber connected to the spray chamber. The exhaust chamber is filled with ball rings to reduce the gas flow rate and pressure. At the same time, the gas separation, dissolution and water washing are more thorough in conjunction with the spraying on the top of the exhaust chamber, so as to achieve gas discharge that meets the standards.

[0045] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A water-washing tail gas treatment device, comprising a combustion chamber, a cooling chamber and a spray chamber connected in sequence, characterized in that: The cooling chamber comprises: An air seal assembly (100) is sealed and connected to the combustion chamber, and comprises a first conical funnel (110) and a second conical funnel (120) which are arranged from the inside to the outside, wherein the top edge of the first conical funnel (110) is connected to the inner wall of the bottom of the combustion chamber, a conical annular cavity (101) is formed between the first conical funnel (110) and the second conical funnel (120), and an air inlet is provided on the outer wall of the conical annular cavity (101); The liquid seal assembly (200) comprises a first cylinder (210) and a second cylinder (220) which are arranged from the inside to the outside and connected at the bottom, the top of the second cylinder (220) is sealedly connected to the top of the second conical funnel (120), the bottom nozzles of the first conical funnel (110) and the second conical funnel (120) are both penetrated through the first cylinder (210) and are connected to the first cylinder (210), a gap is left between the top of the first cylinder (210) and the outer wall of the second conical funnel (120), an annular cavity (201) is formed between the first cylinder (210) and the second cylinder (220), a plurality of liquid inlets are evenly distributed along the circumference of the outer wall of the second cylinder (220) and connected to the annular cavity (201), and the axial directions of the plurality of liquid inlets are consistent with the radial direction of the second cylinder (220); A cooling cylinder (300), wherein two ends of the cooling cylinder (300) are respectively connected to the first cylinder (210) and the spray chamber.

2. The water-wash type exhaust gas treatment device according to claim 1, characterized in that: The gas seal assembly (100) further comprises a gas seal flange (130), and the liquid seal assembly (200) further comprises a water seal flange (230). The bottom of the gas seal flange (130) is provided with a first annular boss (131), and the top of the water seal flange (230) is provided with a first annular positioning groove (202). The first boss (131) is inserted into the first positioning groove (202).

3. The water-wash type exhaust gas treatment device according to claim 2, characterized in that: The water-wash type exhaust gas treatment device further comprises a first sealing ring (400), and the gas sealing flange (130) and the water sealing flange (230) are sealed via the first sealing ring (400).

4. The water-wash type exhaust gas treatment device according to claim 2, characterized in that: The water-wash exhaust gas treatment device also includes a flange (500), a second annular boss (510) is provided at the bottom of the flange (500), and a second annular positioning groove (102) is provided at the top of the gas sealing flange (130), and the second boss (510) is inserted into the second positioning groove (102).

5. The water-wash type tail gas treatment device according to claim 4, characterized in that: The water-wash type tail gas treatment device further comprises a second sealing ring (600), and the flange plate (500) and the gas sealing flange (130) are sealed via the second sealing ring (600).

6. The water-wash type tail gas treatment device according to claim 1, characterized in that: The air sealing assembly (100) further comprises an air inlet nozzle (140), wherein the air inlet nozzle (140) is connected to the air inlet.

7. The water-wash type exhaust gas treatment device according to claim 1, characterized in that: The liquid sealing assembly (200) further comprises a liquid inlet pipe (240), wherein the liquid inlet pipe (240) is connected to the liquid inlet port.

8. The water-wash type exhaust gas treatment device according to claim 1, characterized in that: The combustion chamber side wall is a double-layer structure, and the middle is filled with aerogel thermal insulation material.

9. The water-wash type exhaust gas treatment device according to claim 1, characterized in that: A plurality of heating rods are arranged in the combustion chamber, and the heating rods are covered with detachable protective covers.

10. The water-wash type exhaust gas treatment device according to claim 1, characterized in that: The water-wash type tail gas treatment device also includes an exhaust chamber connected to the spray chamber, and the exhaust chamber is filled with ball rings.

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