TWM594498U - Sulfur waste gas recycling system - Google Patents

Abstract

The sulfur exhaust gas recovery system of this creation includes: a safe water-sealed tank with a tank body; and a jacket tube that extends into the tank body from the bottom of the tank body from bottom to top. The jacket tube adopts a three-layer design , Including an inner tube, a middle layer and an outer layer from the inside to the outside, wherein the inner pipe system is used for sulfur waste gas to pass through, the middle layer is connected with thermal insulation steam, and the inner jacket of the outer layer is plugged with thermal insulation material to isolate The water seal water is in direct contact. According to the sulphur waste gas recovery system of this creation, the steam exhaust jacket is used to keep the sulphur waste gas channel smooth, and the insulation material is used to isolate the steam to avoid direct heating of the evaporated water to seal the water. The whole process is carried out in a closed manner to maintain the temperature of the sulfur waste gas and ensure safety There is no risk of leakage of the water seal, which can effectively prevent the water loss of the water seal and the overflow of sulfur gas.

Description

Sulfur exhaust gas recovery system

This creation relates to an exhaust gas recovery system, and more particularly to a sulfur exhaust gas recovery system.

Sulfur is a bi-crystalline substance, and the temperature is below 130 ℃ or above 160 ℃ in a solid state. In order to enable sulfur to be transported by pumps and pipelines in the coal chemical desulfurization field, it is necessary to ensure that the sulfur temperature is between 130 and 160°C to be in a liquid state. In addition, there will be sulfur gas in the liquid sulfur collection tank and storage device, which must be recovered by a closed exhaust gas recovery system to ensure compliance with regulatory requirements. The exhaust gas recovery system has a safety water seal tank to protect the closed equipment and tank body to avoid the system instability and danger caused by excessive pressure.

Referring to FIG. 1, the existing sulfur waste gas recovery system includes a safety water seal tank, and a water seal water 120 is contained in the tank body 110. The open top of the tank 110 is covered with an outer cover 130. The bottom of the tank body 110 extends from the bottom into a clamping sleeve 140 whose top is higher than the water seal water 120 in the tank body 110, and the other end is connected to the pipeline of the sulfur waste gas recovery system. An inner cover 150 is enclosed above the top of the clamping tube 140. Therefore, the water seal water 120 in the tank 110 forms a water seal to prevent sulfur gas from leaking.

In the case of low pressure, the aforementioned safe water seal tank can prevent sulfur gas from leaking through the jacket 140; when the pressure of the recovery system is too high, the sulfur gas will break through the effective water seal and release pressure to the atmosphere to protect the equipment and tank body . As mentioned earlier, if the sulfur temperature is below 130°C, it will solidify into a solid state. Since the outside of the jacket tube 140 is in direct contact with the water seal water 120 in the tank 110, the waste gas line of the recovery system is insulated by the jacket tube 140.

However, due to poor design of the safety water seal tank of the existing sulfur waste gas recovery system, the temperature of the water seal water is too high and a large amount of gas is generated and sulfur gas overflows the water seal tank to precipitate sulfur. When the safety water seal tank loses water, the exhaust gas recovery system will fail. In addition to the possibility of drawing air into the coke oven gas system, it is extremely dangerous. Even the water seal tank occasionally emits a small amount of white smoke. This white smoke contains water vapor and sulfur gas, which does not meet the requirements of environmental protection regulations. In addition, sulfur will easily condense and block the pipeline when it meets water, and the water will be heated and boiled by sulfur to evaporate, thus losing the water seal function.

In view of this, this creation proposes a sulfur waste gas recovery system, which can ensure that the safety water sealing tank will not be too low and cause sulfur to condense on the pipeline.

In order to achieve the above purpose, the sulfur exhaust gas recovery system of the present invention includes: a safety water sealing tank with a tank body; and a clamping sleeve that extends into the tank body from the bottom of the tank body from the bottom to the top, and the clamping sleeve The system adopts a three-layer design, including an inner tube, a middle layer and an outer layer from the inside to the outside, where the inner pipe system is used for sulfur waste gas to pass through, the middle layer is connected with thermal insulation steam, and the inner jacket of the outer layer is plugged with thermal insulation The hot material is used to cut off the water and seal the water directly.

According to the sulphur waste gas recovery system of this creation, the steam exhaust jacket is used to keep the sulphur waste gas channel smooth, and the insulation material is used to isolate the steam to avoid direct heating of the evaporated water to seal the water. The whole process is carried out in a closed manner to maintain the temperature of the sulfur waste gas and ensure safety There is no risk of leakage of the water seal, which can effectively prevent the water loss of the water seal and the overflow of sulfur gas.

In order to make the above and other purposes, features and advantages of this creation more obvious, the following will be accompanied by the accompanying drawings, which are described in detail below. In addition, in the description of this creation, the same components are denoted by the same symbols, which are described here first.

Please refer to FIG. 2, the sulfur waste gas recovery system of this creation includes a safety water seal tank, and the tank body 210 contains water seal water 220. The open top of the tank 210 is covered with an outer cover 230. The bottom of the tank body 210 extends from the bottom into a clamping tube 240, the top of the clamping tube 240 is higher than the water sealing water 220 in the tank body 210, and the other end is connected to the pipeline of the sulfur waste gas recovery system. An inner cover 250 is enclosed above the top of the clamping tube 240.

According to the sulfur waste gas recovery system of this creation, in order to prevent the water sealing water 220 in the tank body 210 of the safe water sealing tank from being heated to boiling, the jacket tube 240 is of a three-layer design. In detail, the inner sleeve 240 includes an inner tube 241, a middle layer 242 and an outer layer 243 from the inside to the outside. The inner tube 241 is used for passing sulfur exhaust gas, and the middle layer 242 is provided with heat-insulating steam. The jacket of the outer layer 243 is plugged with heat-insulating materials to cut off the water and seal the water for direct contact.

According to the sulphur waste gas recovery system of this creation, the jacket pipe 240 is additionally provided with a middle layer 242 through which insulation steam is passed, which can prevent the sulphur from condensing on the pipeline wall due to the excessively low temperature. The jacket of the outer layer 243 of the jacket tube 240 is plugged with heat insulation materials, which can prevent the insulation steam in the middle layer 242 from overheating the water seal water 220, resulting in the failure of the water seal after the device gassing or losing water.

According to the sulphur waste gas recovery system of this creation, the steam exhaust jacket is used to keep the sulphur waste gas channel smooth, and the insulation material is used to isolate the steam to avoid direct heating of the evaporated water to seal the water. The whole process is carried out in a closed manner to maintain the temperature of the sulfur waste gas and ensure safety There is no risk of leakage of the water seal, which can effectively prevent the water loss of the water seal and the overflow of sulfur gas.

Although this creation has been disclosed with the foregoing examples, it is not intended to limit this creation. Anyone with ordinary knowledge in the technical field to which this creation belongs can make various changes and modifications without departing from the spirit and scope of this creation. Therefore, the scope of protection of this creation shall be deemed as defined by the scope of the attached patent application.

110: tank 120: Water sealed 130: outer cover 140: Jacket 150: inner cover 210: tank 220: Water sealing 230: outer cover 240: Jacket 241: Inner tube 242: Middle floor 243: outer layer 250: inner cover

Figure 1 is a schematic diagram of an existing sulfur waste gas recovery system. Figure 2 is a schematic diagram of the sulfur exhaust gas recovery system created.

210: tank

220: Water sealing

230: outer cover

240: Jacket

241: Inner tube

242: Middle floor

243: outer layer

250: inner cover

Claims (2)

A sulfur waste gas recovery system includes: a safe water-sealed tank with a tank body; and a clamping sleeve that extends into the tank body from the bottom of the tank body from bottom to top. The clamping sleeve is designed in three layers. From the inside to the outside, there is an inner pipe, a middle layer and an outer layer, wherein the inner pipe is used for passing sulfur exhaust gas, the middle layer is connected with heat insulation steam, and the inner jacket of the outer layer is plugged with heat insulation material to cut off the water Seal the water directly. The sulfur exhaust gas recovery system as described in item 1 of the patent application scope further includes: an outer cover covering the top of the tank; and an inner cover provided in the tank and covering the top of the clamping sleeve .

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