An exhaust structure for dust-containing waste gas

Abstract

This invention provides an exhaust structure for dust-containing waste gas, belonging to the field of high-purity vanadium processing technology. It includes a water tank, an air inlet pipe inserted into the water tank, an exhaust pipe located at the top of the water tank, and a float. The water tank is equipped with an inlet pipe and a drain pipe. The float is longitudinally slidably connected to the air inlet pipe, and the distance between the air inlet pipe and the bottom of the water tank is less than the thickness of the float. The float includes an outer float sleeve and an inner absorbent sponge sleeve. This invention has advantages such as sustainable waste gas washing.

Description

Technical Field

[0001] This utility model belongs to the field of high-purity vanadium processing technology and relates to an exhaust structure for dust-containing waste gas. Background Technology

[0002] In the baking process of high-purity vanadium, ammonium metavanadate is heated to separate ammonia, water vapor, and vanadium pentoxide (NH4VO3). → NH3↑ + H2O↑ + V2O5), because the mixture of water vapor and ammonia contains a small amount of vanadium pentoxide powder, the exhaust gas from the vanadium baking workshop usually needs to be rinsed with water to remove the vanadium pentoxide powder. The existing water rinsing method (water washing) involves inserting the exhaust pipe into a water tank. To avoid saturation of the water tank with dissolved ammonia and to avoid excessive dust content in the water, circulating water is generally required. This method uses a large amount of water. If intermittent water replacement is used, there will be gaps in the water washing process, requiring a pause in the gas supply. However, the vanadium baking furnace operates continuously. Therefore, the water washing structure for the exhaust gas urgently needs improvement. Utility Model Content

[0003] The purpose of this utility model is to address the aforementioned problems in the existing technology by providing an exhaust structure for dusty waste gas. The technical problem to be solved by this utility model is how to ensure continuous water washing of the waste gas.

[0004] The purpose of this utility model can be achieved through the following technical solution: an exhaust structure for dusty exhaust gas, characterized in that it includes a water tank, an air inlet pipe inserted into the water tank, an exhaust pipe located at the top of the water tank, and a float. The water tank is provided with a water inlet pipe and a water outlet pipe. The float is longitudinally slidably connected to the air inlet pipe. The distance between the air inlet pipe and the bottom of the water tank is less than the thickness of the float. The float includes an outer float sleeve and an inner absorbent sponge sleeve.

[0005] Furthermore, a limiting ring is provided on the air intake pipe, and the limiting ring is located below the liquid level in the water tank when it is in the water storage state. This can keep the float in a water-soaked state, that is, a water-absorbing state.

[0006] Furthermore, the inner wall of the absorbent sponge sleeve has a skeleton that mates with the outer wall of the air inlet pipe.

[0007] When the water in the tank for dust removal does not need to be replaced, the float rises to the limit stop ring, which is equivalent to existing technology. The exhaust gas enters the bottom of the tank from the bottom of the air inlet pipe, floats up after being washed by water, and is discharged from the exhaust pipe. When the water in the tank needs to be replaced, first open the drain pipe to drain the sewage. During the drainage process, the float moves down with the liquid surface until it "blocks" the outlet of the air inlet pipe, which can drain all the sewage. The exhaust gas passes through the water-absorbing sponge. The water remaining in the water-absorbing sponge can maintain the filtration of the wastewater for a short time, preventing the wastewater from being discharged directly without filtration. After the sewage is drained, the water inlet pipe can be opened to replenish it. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the exhaust structure under normal water storage conditions inside the water tank.

[0009] Figure 2 This is a schematic diagram of the exhaust structure after the sewage in the water tank has been completely drained.

[0010] Figure 3 This is a schematic diagram of the float block structure.

[0011] In the diagram, 1 is the water tank; 2 is the air inlet pipe; 3 is the float; 31 is the float sleeve; 32 is the water-absorbing sponge sleeve; 33 is the frame; and 4 is the limit ring. Detailed Implementation

[0012] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0013] like Figure 1 , Figure 2 and Figure 3 As shown, the exhaust structure includes a water tank 1, an air inlet pipe 2 inserted into the water tank 1, an exhaust pipe located on the upper part of the water tank 1, and a float 3. The water tank 1 is provided with a water inlet pipe and a drain pipe. The float 3 is longitudinally slidably connected to the air inlet pipe 2. The distance between the air inlet pipe 2 and the bottom of the water tank 1 is less than the thickness of the float 3. The float 3 includes an outer float sleeve 31 and an inner water-absorbing sponge sleeve 32.

[0014] A limiting ring 4 is installed on the air inlet pipe 2, and the limiting ring 4 is located below the liquid surface in the water tank 1 when it is in the water storage state. This can keep the float 3 in the water-soaked state, that is, in the water-absorbing state.

[0015] The inner wall of the absorbent sponge sleeve 32 has a skeleton 33 that matches the outer wall of the air inlet pipe 2.

[0016] When the dust removal water in water tank 1 does not need to be replaced, the float 3 floats up to the limit ring 4, which is equivalent to the existing technology. The exhaust gas enters the bottom of water tank 1 from the bottom of the air inlet pipe 2, floats up after being washed by water, and is discharged from the exhaust pipe. When the water in water tank 1 needs to be replaced, the drain pipe is opened first to drain the sewage. During the drainage process, the float 3 moves down with the liquid surface until it "blocks" the outlet of the air inlet pipe 2, which can drain all the sewage. The exhaust gas passes through the water-absorbing sponge. The water remaining in the water-absorbing sponge can maintain the filtration of the wastewater for a short time, and will not cause the wastewater to be discharged directly without filtration. After the sewage is drained, the water inlet pipe can be opened to replenish it.

[0017] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. An exhaust structure of a dust-containing exhaust gas, characterized by, It includes a water tank (1), an air inlet pipe (2) inserted into the water tank (1), an exhaust pipe located on the upper part of the water tank (1), and a float (3). The water tank (1) is provided with an inlet pipe and an outlet pipe. The float (3) is longitudinally slidably connected to the air inlet pipe (2). The distance between the air inlet pipe (2) and the bottom of the water tank (1) is less than the thickness of the float (3). The float (3) includes an outer float sleeve (31) and an inner absorbent sponge sleeve (32).

2. The exhaust structure according to claim 1, wherein A limiting ring (4) is provided on the air inlet pipe (2). The limiting ring (4) is located below the liquid surface in the water tank (1) when it is in the water storage state, which can keep the float (3) in the water soaking state, that is, the water absorption state.

3. The exhaust structure according to claim 2, wherein The inner wall of the absorbent sponge sleeve (32) has a skeleton (33) that matches the outer wall of the air inlet pipe (2).

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