A vertical shaft furnace nitrogen oxide emission treatment device

Abstract

This utility model discloses a vertical shaft furnace nitrogen oxide emission treatment device, comprising: a vertical shaft furnace, an exhaust pipe fixedly connected to the upper surface of the furnace, a valve seat fixedly connected to the end of the exhaust pipe away from the furnace, a valve core slidably connected to the inner surface of the valve seat, and a compression spring fixedly connected to the side surface of the valve core; a treatment chamber, a water spray pipe fixedly connected to the inner surface of the treatment chamber, a water pump fixedly connected to the side surface of the water spray pipe, a wire mesh fixedly connected to the inner surface of the treatment chamber, a filter box slidably connected to the inner surface of the treatment chamber, and activated carbon disposed on the inner surface of the filter box. Through the above structure, efficient treatment of nitrogen oxide emissions from the vertical shaft furnace is achieved, backflow of the absorbent liquid within the treatment device is prevented, ensuring continuous and sufficient contact and reaction between the absorbent liquid and nitrogen oxides, intercepting water mist generated during the treatment process, and improving the treatment efficiency and effect of the treatment device.

Description

Technical Field

[0001] This utility model relates to the field of nitrogen oxide emission treatment technology, and in particular to a nitrogen oxide emission treatment device for a vertical shaft furnace. Background Technology

[0002] Existing vertical shaft furnace nitrogen oxide emission treatment devices treat nitrogen oxide emissions through multiple reactions. However, this method has problems such as large footprint, low treatment efficiency, and difficult device maintenance, making it inconvenient to use. Chinese patent discloses a "nitrogen oxide waste gas treatment device" with application number "CN201621173179.1", which treats nitrogen oxide waste gas by setting up multiple spray towers. Multiple spray towers require a large space to be installed, resulting in a large footprint of the treatment device. The gas has a relatively long path through the treatment device, resulting in low treatment efficiency. The device system structure is also complex, leading to difficult maintenance. Utility Model Content

[0003] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a vertical shaft furnace nitrogen oxide emission treatment device. Through the combined action of valve core, water spray pipe, wire mesh and filter box, it achieves efficient treatment of nitrogen oxide emissions from vertical shaft furnaces, prevents backflow of absorbent liquid in the treatment device, and ensures that the absorbent liquid continuously and fully contacts and reacts with nitrogen oxides. It intercepts water mist generated during the treatment process, reduces the impact on subsequent gas treatment, and can efficiently adsorb nitrogen oxides and other organic pollutants, further reducing the concentration of pollutants in the emission gas, and improving the treatment efficiency and treatment effect of the treatment device.

[0004] This utility model also provides a vertical shaft furnace nitrogen oxide emission treatment device, comprising: a vertical shaft furnace, an exhaust pipe fixedly connected to the upper surface of the furnace, a valve seat fixedly connected to the end of the exhaust pipe away from the furnace, a valve core slidably connected to the inner surface of the valve seat, and a compression spring fixedly connected to the side surface of the valve core; a treatment chamber, a water spray pipe fixedly connected to the inner surface of the treatment chamber, a water pump fixedly connected to the side surface of the water spray pipe, a wire mesh fixedly connected to the inner surface of the treatment chamber, a filter box slidably connected to the inner surface of the treatment chamber, activated carbon disposed on the inner surface of the filter box, and an exhaust port fixedly connected to the upper surface of the treatment chamber. Through these components, efficient treatment of nitrogen oxide emissions from the vertical shaft furnace is achieved, ensuring continuous and sufficient contact and reaction between the absorbent and nitrogen oxides, reducing the impact of water mist on gas treatment, and efficiently adsorbing nitrogen oxides and other organic pollutants, thereby improving the treatment efficiency and effect of the treatment device.

[0005] According to the present invention, a vertical shaft furnace nitrogen oxide emission treatment device is provided, wherein the valve core and valve seat are both provided with exhaust holes, and the compression spring is fixedly connected to the valve seat. These components enable control of the nitrogen oxide emission flow direction, prevent backflow of the absorbent liquid within the treatment device, and ensure normal system operation.

[0006] According to the present invention, a vertical shaft furnace nitrogen oxide emission treatment device is provided, wherein the water pumping pipe is fixedly connected to the treatment chamber, and the water pump is fixedly connected to the water pumping pipe. Through these components, the absorbent liquid is recycled, allowing it to continuously contact and react with nitrogen oxides, thereby improving the absorption effect of nitrogen oxides.

[0007] According to the present invention, a vertical shaft furnace nitrogen oxide emission treatment device is provided, wherein a fixing ring is fixedly connected to the inner surface of the treatment chamber, and the fixing ring is slidably connected to the filter box. These components provide support for the filter box, facilitating its use.

[0008] According to the present invention, a vertical shaft furnace nitrogen oxide emission treatment device includes a buckle fixedly connected to the side surface of the filter box, which is detachably connected to the treatment chamber. These components enable the fixing and disassembly of the filter box, making activated carbon replacement more convenient.

[0009] According to the present invention, a vertical shaft furnace nitrogen oxide emission treatment device includes a sealing ring fixedly connected to the side surface of the filter box, and a handle fixedly connected to the side surface of the filter box. These components effectively prevent untreated gas from escaping through the gaps in the filter box, thus avoiding direct emission of pollutants into the surrounding environment.

[0010] According to the present invention, a vertical shaft furnace nitrogen oxide emission treatment device is provided, wherein a baffle is fixedly connected to the inner surface of the treatment chamber, and the baffle is slidably connected to a filter box. These components limit the position of the filter box, preventing activated carbon from falling out when the filter box is placed or removed.

[0011] According to the present invention, a vertical shaft furnace nitrogen oxide emission treatment device is provided, wherein the water spray pipe is provided with multiple water spray holes, and the treatment chamber is provided with absorbent liquid. Through these components, uniform spraying of the absorbent liquid is achieved, allowing the absorbent liquid to continuously and fully contact and react with the nitrogen oxides.

[0012] Compared with existing technologies, this vertical shaft furnace nitrogen oxide emission treatment device achieves efficient treatment of nitrogen oxide emissions from the vertical shaft furnace through the coordinated action of valve core, water spray pipe, wire mesh, and filter box. It prevents backflow of the absorbent liquid inside the treatment device, ensuring that the absorbent liquid continuously and fully contacts and reacts with the nitrogen oxides. It intercepts the water mist generated during the treatment process, reducing the impact on subsequent gas treatment. It can efficiently adsorb nitrogen oxides and other organic pollutants, further reducing the concentration of pollutants in the emission gas and improving the treatment efficiency and effect of the treatment device. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0014] Figure 1 This is a left-side structural view of the vertical furnace nitrogen oxide emission treatment device of this utility model;

[0015] Figure 2 This is a cross-sectional view of the vertical furnace nitrogen oxide emission treatment device of this utility model from the left side.

[0016] Figure 3 This is a right-side cross-sectional view of the vertical furnace nitrogen oxide emission treatment device of this utility model;

[0017] Figure 4 This is an enlarged structural diagram of section A of the vertical furnace nitrogen oxide emission treatment device of this utility model;

[0018] Figure 5 This is an enlarged structural diagram of section B of the vertical furnace nitrogen oxide emission treatment device of this utility model.

[0019] Legend:

[0020] 1. Vertical furnace; 2. Exhaust pipe; 3. Valve core; 4. Compression spring; 5. Valve seat; 6. Processing chamber; 7. Water spray pipe; 8. Water pumping pipe; 9. Water pump; 10. Wire mesh; 11. Filter box; 12. Activated carbon; 13. Baffle; 14. Exhaust port. Detailed Implementation

[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0022] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4This utility model embodiment provides a vertical furnace nitrogen oxide emission treatment device, which includes: a vertical furnace 1, an exhaust pipe 2 fixedly connected to the upper surface of the vertical furnace 1, a valve seat 5 fixedly connected to the end of the exhaust pipe 2 away from the vertical furnace 1, a valve core 3 slidably connected to the inner surface of the valve seat 5, exhaust holes provided on both the valve core 3 and the valve seat 5, and a compression spring 4 fixedly connected to the side surface of the valve core 3, and the compression spring 4 is fixedly connected to the valve seat 5.

[0023] Specifically, during operation, the nitrogen oxide emissions generated by the vertical furnace 1 flow to the one-way exhaust valve through the exhaust pipe 2. The gas pressure pushes the valve core 3 to move towards the valve seat 5, and the compression spring 4 is compressed. The nitrogen oxide emissions are discharged into the treatment chamber 6 through the exhaust holes on the valve core 3 and the valve seat 5. When the gas pressure decreases, the compression spring 4 is stretched. The absorbent liquid in the treatment chamber 6 and the elastic force of the compression spring 4 push the valve core 3 to move towards the exhaust pipe 2. The exhaust holes on the valve core 3 are sealed by the exhaust pipe 2 to meet the requirement of preventing the backflow of absorbent liquid in the treatment device.

[0024] Reference Figure 1 , Figure 2 , Figure 3 and Figure 5 The treatment chamber 6 contains an absorbent liquid. A water spray pipe 7 is fixedly connected to the inner surface of the treatment chamber 6. The water spray pipe 7 has multiple water spray holes. A water suction pipe 8 is fixedly connected to the side surface of the water spray pipe 7 and is fixedly connected to the treatment chamber 6. A water pump 9 is fixedly connected to the side surface of the treatment chamber 6 and is fixedly connected to the water suction pipe 8. A wire mesh 10 is fixedly connected to the inner surface of the treatment chamber 6. A fixing ring is fixedly connected to the inner surface of the treatment chamber 6. A filter box 11 is slidably connected to the upper surface of the fixing ring. Activated carbon 12 is provided on the inner surface of the filter box 11. A buckle is fixedly connected to the side surface of the filter box 11 and is detachably connected to the treatment chamber 6. A sealing ring is fixedly connected to the side surface of the filter box 11 and a handle is fixedly connected to the side surface of the filter box 11. A baffle 13 is fixedly connected to the inner surface of the treatment chamber 6 and is slidably connected to the filter box 11. An exhaust port 14 is fixedly connected to the upper surface of the treatment chamber 6.

[0025] Specifically, the water pump 9 is turned on, and the treatment chamber 6 performs a preliminary reaction on the nitrogen oxide emissions. After the gas floats to the surface of the absorbent liquid, the water pump 9 pumps the absorbent liquid to the spray pipe 7 through the water pipe 8. The absorbent liquid sprayed from the spray pipe 7 reacts again with the nitrogen oxides in the gas. The wire mesh 10 intercepts the water mist generated during the treatment process, causing the droplets in the gas to agglomerate into larger particles. The activated carbon 12 in the filter box 11 adsorbs the nitrogen oxides and other organic pollutants contained in the gas, further reducing the concentration of pollutants in the emissions. The treated gas is discharged through the exhaust port 14 to meet the requirements for treating nitrogen oxide emissions.

[0026] Working principle: When in use, the water pump 9 is turned on, and the nitrogen oxide emissions generated by the vertical furnace 1 flow through the exhaust pipe 2 to the one-way exhaust valve, and are discharged into the treatment chamber 6 through the valve seat 5. The treatment chamber 6 reacts initially with the nitrogen oxide emissions. After the gas floats to the surface of the absorbent liquid, the absorbent liquid sprayed by the water spray pipe 7 reacts with the nitrogen oxides in the gas again. The wire mesh 10 intercepts the water mist generated during the treatment process, and the activated carbon 12 in the filter box 11 adsorbs the nitrogen oxides and other organic pollutants contained in the gas. The treated gas is discharged through the exhaust port 14.

[0027] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A shaft furnace nitrogen oxides emission treatment device, characterized by, include: A vertical furnace (1) is provided with an exhaust pipe (2) fixedly connected to the upper surface of the vertical furnace (1). A valve seat (5) is fixedly connected to the end of the exhaust pipe (2) away from the vertical furnace (1). A valve core (3) is slidably connected to the inner surface of the valve seat (5). A compression spring (4) is fixedly connected to the side surface of the valve core (3). A treatment chamber (6) is provided with a water spray pipe (7) fixedly connected to the inner surface of the treatment chamber (6), a water pump (8) fixedly connected to the side surface of the water spray pipe (7), a water pump (9) fixedly connected to the side surface of the treatment chamber (6), a wire mesh (10) fixedly connected to the inner surface of the treatment chamber (6), a filter box (11) slidably connected to the inner surface of the treatment chamber (6), activated carbon (12) provided on the inner surface of the filter box (11), and an exhaust port (14) fixedly connected to the upper surface of the treatment chamber (6).

2. A shaft furnace NOx emission treatment device according to claim 1, characterized in that Both the valve core (3) and the valve seat (5) are provided with exhaust holes, and the compression spring (4) is fixedly connected to the valve seat (5).

3. A shaft furnace NOx emission treatment device according to claim 1, characterized in that The water pump (8) is fixedly connected to the treatment chamber (6), and the water pump (9) is fixedly connected to the water pump (8).

4. A shaft furnace NOx emission treatment device according to claim 1, characterized in that A fixing ring is fixedly connected to the inner surface of the treatment chamber (6), and the fixing ring is slidably connected to the filter box (11).

5. A shaft furnace NOx emission treatment device according to claim 1, characterized in that, The filter box (11) has a buckle fixedly connected to its side surface, and the buckle is detachably connected to the treatment chamber (6).

6. A shaft furnace NOx emission treatment device according to claim 1, characterized in that A sealing ring is fixedly connected to the side surface of the filter box (11), and a handle is fixedly connected to the side surface of the filter box (11).

7. A shaft furnace NOx emission treatment device according to claim 1, characterized in that A baffle (13) is fixedly connected to the inner surface of the treatment chamber (6), and the baffle (13) is slidably connected to the filter box (11).

8. A shaft furnace NOx emission treatment device according to claim 1, characterized in that The water spray pipe (7) is provided with multiple water spray holes, and the treatment chamber (6) is provided with absorbent liquid.

Images