Exhaust gas spray treatment device

Abstract

The utility model relates to a kind of waste gas spray treatment device, including export subassembly, spray subassembly, air inlet pipe and atomizing nozzle, the air inlet pipe and atomizing nozzle are respectively installed and set in the two ends of opposite in the horizontal direction of spray subassembly, so that waste gas and neutralizing liquid are respectively input spray subassembly by air inlet pipe and atomizing nozzle to carry out waste gas spray treatment, the upper end of the spray subassembly is communicated with export subassembly, and waste gas after spray treatment is exported by export subassembly. Air inlet pipe and atomizing nozzle are respectively installed in the two ends of opposite in the horizontal direction of spray subassembly, waste gas and neutralizing liquid form relative flow path in spray subassembly, so that waste gas and atomized neutralizing liquid can be more fully contacted, in the process of waste gas rising, atomized neutralizing liquid is condensed and drops after contacting the smooth inner wall of converging seat, waste gas is also contacted with condensed and dropped neutralizing liquid again when passing through converging seat, further improve waste gas treatment effect.

Description

Technical Field

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

[0002] Currently, there are various waste gas treatment technologies, among which spray treatment technology is widely used in the field of industrial waste gas treatment due to its advantages such as simple structure, convenient operation, and relatively low treatment cost. Spraying can generally treat acidic and alkaline waste gases that are prone to acid-base reactions, and can also treat hydrogen chloride, hydrogen fluoride, ammonia, sulfates, chromates, etc. It is often used to treat waste gases that are easily soluble in water.

[0003] Existing waste gas scrubbing treatment devices typically include a scrubbing tower. Waste gas enters from the bottom of the tower, and neutralizing liquid is sprayed down from the top through a spraying device. The waste gas and neutralizing liquid come into countercurrent contact within the tower, achieving the absorption and removal of harmful substances in the waste gas. However, this traditional scrubbing treatment device has some shortcomings: Firstly, the structural design of traditional scrubbing towers results in a relatively fixed flow path for the waste gas within the tower, leading to insufficient contact between the waste gas and the neutralizing liquid. Secondly, the discharge method of the waste liquid at the bottom of the scrubbing tower is usually quite simple, mostly gravity flow, which can cause a small amount of waste gas to leak from the bottom of the tower. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] This invention provides a waste gas spray treatment device that solves the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a waste gas spray treatment device, comprising an outlet component, a spray component, an air inlet pipe, and an atomizing nozzle. The air inlet pipe and the atomizing nozzle are respectively installed at opposite ends of the spray component in the horizontal direction, so that waste gas and neutralizing liquid are respectively input into the spray component for waste gas spray treatment through the air inlet pipe and the atomizing nozzle. The upper end of the spray component is connected to the outlet component, and the sprayed waste gas is exported through the outlet component. The lower end of the spray component is used to export the sprayed waste liquid.

[0008] Preferably, the spray assembly includes a cross tube, with openings at all four ends communicating with its inner cavity. An air inlet pipe and an atomizing nozzle are respectively installed and fixed at opposite ends of the cross tube in the horizontal direction. The spray assembly also includes a one-way discharge component, which is located at the bottom of the cross tube. Waste liquid after spraying is discharged from the cross tube through the one-way discharge component.

[0009] In a further preferred embodiment, the unidirectional discharge assembly includes an annular plate, a sealing plug, a spring, and a bracket. The annular plate is formed at the lower opening of the cross tube, the sealing plug is disposed below the annular plate and is used to seal the annular plate, the spring passes through the annular plate and its two ends are fixedly connected to the sealing plug and the bracket, respectively, and the bracket is fixedly connected to the inner cavity of the cross tube.

[0010] In a further preferred embodiment, the discharge assembly includes a discharge chamber, a discharge tube, and a concentrator. The bottom of the discharge chamber is connected to the upper end of the cross tube. The discharge tube passes through the top of the discharge chamber and is fixedly connected to it. The concentrator is formed at the lower end of the discharge tube and extends into the cavity of the discharge chamber. The cavities of both the discharge tube and the concentrator are connected to the cavity of the discharge chamber. The concentrator is frustoconical in shape, and its inner wall is a smooth curved surface. The diameter of the lower end of the concentrator is adapted to the width of the cavity of the discharge chamber. An exhaust port is formed at the top of the discharge tube.

[0011] In a further preferred embodiment, the exhaust gas spray treatment device also includes a base, the upper end of which is fixedly connected to the bottom of the outlet chamber, and the lower end of the cross tube is spaced apart from the bottom of the base.

[0012] (III) Beneficial Effects

[0013] Compared with the prior art, the present invention provides a waste gas spray treatment device, which has the following beneficial effects:

[0014] In this invention, the air inlet pipe and the atomizing nozzle are respectively installed at opposite ends of the spray assembly in the horizontal direction. The exhaust gas and the neutralizing liquid form opposite flow paths in the spray assembly. This structural design allows the exhaust gas and the atomized neutralizing liquid to come into more full contact, greatly increasing the contact area and contact time between the two, thereby improving the absorption of harmful substances in the exhaust gas.

[0015] The spray assembly has a one-way discharge component at the lower end of the cross tube. When the waste liquid accumulates to a certain amount in the cross tube, it can be automatically discharged by its own pressure. At the same time, the accumulated waste liquid forms a liquid seal at the lower end of the cross tube, which can effectively prevent the waste gas from being discharged from the lower end of the cross tube and prevent the leakage of waste gas.

[0016] During the upward movement of exhaust gas, the atomized neutralizing liquid condenses and drips upon contact with the smooth inner wall of the flow collector, returning to the spray assembly to participate in exhaust gas treatment. This achieves the recycling of the atomized neutralizing liquid. Furthermore, the exhaust gas will come into contact with the condensed and dripping neutralizing liquid again when passing through the flow collector, further improving the exhaust gas treatment effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the waste gas spray treatment device according to the implementation plan;

[0018] Figure 2 for Figure 1 A schematic diagram of the cut-out structure of the export component in the spray treatment device;

[0019] Figure 3 This is a cross-sectional structural diagram of the spray assembly according to the implementation plan.

[0020] In the diagram: 10, base; 20, outlet assembly; 21, outlet chamber; 22, outlet pipe; 23, converging seat; 30, spray assembly; 31, cross tube; 32, annular plate; 33, sealing plug; 34, spring; 35, bracket; 40, air inlet pipe; 50, atomizing nozzle. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1 A waste gas scrubbing treatment device may include a base 10, an outlet component 20, a scrubbing component 30, an air inlet pipe 40, and an atomizing nozzle 50. The upper end of the base 10 is fixedly connected to the bottom of the outlet chamber 21 in the outlet component 20, allowing the base 10 to support the outlet component 20 at a certain height. The scrubbing component 30 is disposed below the outlet component 20, and the air inlet pipe 40 and the atomizing nozzle 50 are respectively installed at opposite ends of the horizontal direction of the scrubbing component 30. This allows waste gas and neutralizing liquid to be input into the scrubbing component 30 for waste gas scrubbing treatment through the air inlet pipe 40 and the atomizing nozzle 50, respectively. During this process, the waste gas and neutralizing liquid form opposing flow paths within the scrubbing component. This structural design allows for more thorough contact between the waste gas and the atomized neutralizing liquid, significantly increasing the contact area and contact time, thereby improving the absorption of harmful substances in the waste gas. The upper end of the scrubbing component 30 is connected to the outlet component 20, through which the scrubbing-treated waste gas is exited. In addition, the lower end of the spray assembly 30 is used to discharge the waste liquid after spraying treatment.

[0023] See Figure 3The spray assembly 30 includes a cross tube 31 and a one-way discharge assembly. Each of the four ends of the cross tube 31 has an opening communicating with its inner cavity. The air inlet pipe 40 and the atomizing nozzle 50 are respectively installed and fixed at opposite ends of the cross tube 31 in the horizontal direction, allowing both waste gas and neutralizing liquid to be input into the cross tube 31 for waste gas spraying. The one-way discharge assembly is located at the bottom of the cross tube 31, through which the waste liquid after spraying is discharged from the cross tube 31.

[0024] In this embodiment, the unidirectional discharge assembly includes an annular plate 32, a sealing plug 33, a spring 34, and a bracket 35. The annular plate 32 is formed at the lower opening of the cross tube 31, and the gap in the middle of the annular plate 32 allows for the discharge of waste liquid. The sealing plug 33 is disposed below the annular plate 32 and is used to seal the annular plate 32. The spring 34 passes through the gap in the middle of the annular plate 32, and both ends of the spring 34 are fixedly connected to the sealing plug 33 and the bracket 35, respectively. The bracket 35 is fixedly connected to the inner cavity of the cross tube 31. When the waste liquid accumulates to a certain amount in the cross tube, it can use its own pressure to push the sealing plug 33 to separate from the annular plate 32, thereby allowing the waste liquid to be discharged. At the same time, the accumulated waste liquid forms a liquid seal at the lower end of the cross tube, which can effectively prevent the exhaust gas from being discharged from the lower end of the cross tube, prevent the leakage of exhaust gas, avoid secondary pollution, and improve the safety and reliability of the device.

[0025] In this embodiment, there is a certain gap between the lower end of the cross tube 31 and the bottom of the base 10, so that a certain gap can be left at the lower end of the cross tube 31 for connecting and installing waste liquid collection equipment.

[0026] See Figure 2The outlet assembly 20 includes an outlet chamber 21, an outlet pipe 22, and a concentrator 23. The bottom of the outlet chamber 21 is connected to the upper end of the cross tube 31, allowing the waste gas after spray treatment to flow into the outlet chamber 21. The outlet pipe 22 passes through the top of the outlet chamber 21 and is fixedly connected to it. The concentrator 23 is formed at the lower end of the outlet pipe 22 and extends into the inner cavity of the outlet chamber 21. The inner cavities of both the outlet pipe 22 and the concentrator 23 are connected to the inner cavity of the outlet chamber 21, and an exhaust port is formed at the top of the outlet pipe 22, allowing the waste gas flowing into the outlet chamber 21 to be discharged through the exhaust port at the top of the outlet pipe 22 or input to the next treatment device. The concentrator 23 is shaped like a frustum, and its inner wall is a smooth curved surface. The diameter of the lower end of the concentrator 23 is adapted to the width of the inner cavity of the outlet chamber 21. The exhaust gas flowing into the outlet chamber 21 is concentrated by the concentrator 23 and then discharged through the outlet pipe 22. During the rise of the exhaust gas, the atomized neutralizing liquid condenses and drips upon contact with the smooth inner wall of the concentrator, returning to the spray assembly to participate in exhaust gas treatment. This achieves the recycling of the atomized neutralizing liquid, reduces waste, and lowers the cost of exhaust gas treatment. Furthermore, the exhaust gas comes into contact with the condensed and dripping neutralizing liquid again when passing through the concentrator, further improving the exhaust gas treatment effect.

[0027] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A waste gas spray treatment device, comprising an air inlet pipe (40) and an atomizing nozzle (50), characterized in that, It also includes an outlet component (20) and a spray component (30). The air inlet pipe (40) and the atomizing nozzle (50) are respectively installed at opposite ends of the spray component (30) in the horizontal direction, so that the waste gas and the neutralizing liquid are respectively input into the spray component (30) through the air inlet pipe (40) and the atomizing nozzle (50) for waste gas spraying treatment. The upper end of the spray component (30) is connected to the outlet component (20), and the waste gas after spraying treatment is exported through the outlet component (20). The lower end of the spray component (30) is used to export the waste liquid after spraying treatment.

2. The waste gas spray treatment device according to claim 1, characterized in that: The spray assembly (30) includes a cross tube (31), with openings at all four ends of the cross tube (31) communicating with its inner cavity, and an air inlet pipe (40) and an atomizing nozzle (50) respectively installed and fixed at opposite ends of the cross tube (31) in the horizontal direction.

3. The waste gas spray treatment device according to claim 2, characterized in that: The spray assembly (30) also includes a one-way discharge assembly, which is located at the bottom of the cross tube (31). The waste liquid after spray treatment is discharged from the cross tube (31) through the one-way discharge assembly.

4. The waste gas spray treatment device according to claim 3, characterized in that: The unidirectional discharge assembly includes an annular plate (32), a sealing plug (33), a spring (34), and a bracket (35). The annular plate (32) is formed at the lower opening of the cross tube (31). The sealing plug (33) is disposed below the annular plate (32) and is used to seal the annular plate (32). The spring (34) passes through the annular plate (32) and its two ends are fixedly connected to the sealing plug (33) and the bracket (35) respectively. The bracket (35) is fixedly connected to the inner cavity of the cross tube (31).

5. A waste gas spray treatment device according to any one of claims 2-4, characterized in that: The export assembly (20) includes an export chamber (21), an export tube (22), and a concentrator (23). The bottom of the export chamber (21) is connected to the upper end of the cross tube (31). The export tube (22) passes through the top of the export chamber (21) and is fixedly connected to it. The concentrator (23) is formed at the lower end of the export tube (22) and extends into the inner cavity of the export chamber (21). The inner cavities of the export tube (22) and the concentrator (23) are both connected to the inner cavity of the export chamber (21). An exhaust port is formed at the top of the export tube (22).

6. The waste gas spray treatment device according to claim 5, characterized in that: The flow-concentrating seat (23) is configured as a frustum, and the inner wall of the flow-concentrating seat (23) is configured as a smooth curved surface. The diameter of the lower end of the flow-concentrating seat (23) is adapted to the width of the inner cavity of the outlet chamber (21).

7. The waste gas spray treatment device according to claim 5, characterized in that: It also includes a base (10), the upper end of which is fixedly connected to the bottom of the outlet chamber (21), and the lower end of the cross tube (31) is spaced apart from the bottom of the base (10).

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