Pretreatment facility for reducing water content of tail gas of CO furnace

Abstract

The utility model relates to the technical field of CO furnace tail gas treatment, in particular to a pretreatment facility for reducing the water content of CO furnace tail gas, which comprises a tail gas treatment tank, a tail gas inlet and an inlet valve are arranged at one end of the tail gas treatment tank, and a tail gas outlet and an outlet valve are arranged at the other end of the tail gas treatment tank. A circulating cold water pipe is arranged in the tail gas treatment tank along the flowing track of tail gas, a filter screen used for filtering tail gas impurities is arranged in the tail gas treatment tank, a drainage port and a drainage valve are arranged at the bottom of the tail gas treatment tank, and a purging port is formed in the top of the tail gas treatment tank. The utility model has the following beneficial effects: the circulating cold water pipe in the tail gas treatment tank is used for freezing and drying tail gas, so that CO furnace equipment and pipelines are prevented from being corroded; the moisture content of the tail gas entering the CO furnace can be monitored in real time according to the remote transmission hygrograph; the automatic control degree is high, the tail gas water content can be set, the cold water amount is adjusted, and cold water waste is avoided; the liquid level is remotely transmitted, so that regular drainage reminding can be realized, and the overflow condition is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of CO furnace tail gas treatment, in particular to a pre-treatment facility for reducing the water content of CO furnace tail gas. Background Art

[0002] A catalytic oxidation furnace (also called a CO furnace) is a type of furnace that uses catalysts to promote the oxidation and decomposition of pollutants in exhaust gas. It has the advantages of low operating temperature, energy saving, and high removal efficiency. It is widely used in various industries such as spraying and petrochemicals.

[0003] CO furnaces are often used to treat exhaust gas generated by pre-installed devices. During traditional use, the exhaust gas treated by the CO furnace contains a lot of impurities and moisture. After the exhaust gas containing moisture and impurities enters the CO furnace, it will cause corrosion to the CO furnace system equipment, not only corroding the pipelines and equipment, but also causing a certain impact on the exhaust gas treatment effect of the CO furnace. Utility Model Content

[0004] The utility model aims to provide a pre-treatment facility for reducing the water content of CO furnace tail gas, which is used for reducing the water and impurity content of CO furnace intake gas.

[0005] The above-mentioned technical purpose of the utility model is achieved through the following technical scheme: it includes a tail gas treatment tank, one end of which has a tail gas inlet and an inlet valve, and the other end has a tail gas outlet and an outlet valve, a baffle is arranged in the tail gas treatment tank, a circulating cold water pipe is arranged in the tail gas treatment tank along the flow trajectory of the tail gas, a filter mesh is arranged in the tail gas treatment tank for filtering tail gas impurities, a drain outlet and a drain valve are arranged at the bottom of the tail gas treatment tank, and a purge port is arranged at the top.

[0006] By adopting the above technical scheme, the exhaust gas outlet of the exhaust gas treatment tank is connected to the CO furnace. Before the exhaust gas enters the CO furnace, it first enters the exhaust gas treatment tank along the exhaust gas inlet and zigzags under the obstruction of the baffle. At the same time, since there is continuously low-temperature circulating water in the circulating cold water pipe, the exhaust gas in the exhaust gas treatment tank is condensed, so the exhaust gas can be dried; when the exhaust gas travels in the exhaust gas treatment tank, it passes through the filter screen many times to filter the impurity particles in the exhaust gas. By regularly opening the drain valve, the moisture and impurities in the exhaust gas treatment tank can be discharged, and the screen can be purged and dusted by backblowing with nitrogen through the purge port.

[0007] Preferably, a remote humidity meter is provided in the exhaust gas treatment tank.

[0008] By adopting the above technical solution, the remote humidity meter can monitor the humidity in the exhaust gas treatment tank in real time and transmit the humidity information.

[0009] Preferably, the water inlet of the circulating cold water pipe is provided with an automatic control valve, and the automatic control valve is electrically connected to the remote humidity meter.

[0010] By adopting the above technical scheme, after the exhaust gas passes through the exhaust gas treatment tank, the remote humidity meter detects the water content of the exhaust gas after filtering and treatment. When the remote humidity meter detects that the water content increases, the remote control automatic valve opens to reduce the temperature in the pipe and improve the cold drying effect. When the remote humidity meter detects that the water content of the exhaust gas decreases, the amount of cold water is reduced to avoid waste of cold water.

[0011] Preferably, the exhaust gas treatment tank is provided with a remote liquid level meter.

[0012] By adopting the above technical solution, when the liquid level in the tank rises to a certain value, the remote level gauge reminds the operator to open the drain valve for drainage operation.

[0013] In summary, the utility model has the following beneficial effects:

[0014] 1. Use the circulating cold water pipe in the tail gas treatment tank to dry the tail gas to avoid corrosion of CO furnace equipment and pipelines;

[0015] 2. The remote humidity meter can monitor the moisture content of the tail gas entering the CO furnace in real time;

[0016] 3. High degree of self-control, the water content of exhaust gas can be set to adjust the amount of cold water to avoid waste of cold water;

[0017] 4. Liquid level remote transmission can provide regular drainage reminders to avoid flooding;

[0018] 5. You can choose the appropriate filter according to your needs to control the impurity content in the exhaust gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a simplified diagram showing the connection relationship of this facility.

[0020] In the figure, 1. exhaust gas treatment tank; 11. exhaust gas inlet; 12. inlet valve; 13. exhaust gas outlet; 14. outlet valve; 15. baffle; 16. drain outlet; 17. drain valve; 18. purge outlet; 2. circulating cold water pipe; 21. automatic control valve; 3. filter screen; 4. remote humidity meter; 5. remote liquid level meter. DETAILED DESCRIPTION

[0021] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0022] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0023] Example:

[0024] A pre-treatment facility for reducing the water content of CO furnace tail gas

[0025] like Figure 1 As shown, it includes a tail gas treatment tank 1, one end of which has a tail gas inlet 11 and an inlet valve 12, and the other end has a tail gas outlet 13 and an outlet valve 14, a baffle 15 is arranged in the tail gas treatment tank 1, a circulating cold water pipe 2 is arranged in the tail gas treatment tank 1 along the flow trajectory of the tail gas, a filter screen 3 for filtering tail gas impurities is arranged in the tail gas treatment tank 1, a drain port 16 and a drain valve 17 are arranged at the bottom of the tail gas treatment tank 1, and a purge port 18 is arranged at the top.

[0026] A remote humidity meter 4 is provided in the tail gas treatment tank 1 , and the remote humidity meter 4 is installed at the tail gas outlet 13 .

[0027] The water inlet of the circulating cold water pipe 2 is provided with an automatic control valve 21 , and the automatic control valve 21 is electrically connected to the remote humidity meter 4 .

[0028] The tail gas treatment tank 1 is provided with a remote liquid level gauge 5 .

[0029] Directions:

[0030] Before the tail gas enters the CO furnace, a tail gas treatment system is added. When the tail gas passes through the tail gas treatment tank 1, the circulating cold water pipe 2 is always in a circulating water supply state, and the tail gas is continuously cooled and dried. At the same time, the tail gas passes through the filter screen 3 to filter impurities. After the tail gas passes through the tail gas treatment tank 1, a remote humidity meter 4 detects the water content of the tail gas after filtering and treatment. When the remote humidity meter 4 detects that the water content increases, the remote control automatic valve 21 is opened to reduce the temperature in the pipe and improve the cold drying effect. When the remote humidity meter 4 detects that the water content of the tail gas decreases, the amount of cold water is reduced to avoid cold water waste. The filter screen 3 in the tail gas treatment tank 1 selects a suitable mesh number according to the size of the tail gas impurity particles that need to be controlled. When the liquid level in the tail gas treatment tank 1 rises to a certain value, the remote reminds the operator to open the drain valve 17 for drainage. The nitrogen backflush can be checked and turned on regularly, and the filter screen 3 in the tail gas treatment tank 1 is purged and dusted through the purge port 18.

Claims

1. A pre-treatment facility for reducing the water content of CO furnace tail gas, characterized in that: The invention comprises a tail gas treatment tank (1), one end of which is provided with a tail gas inlet (11) and an inlet valve (12), and the other end of which is provided with a tail gas outlet (13) and an outlet valve (14); a baffle (15) is arranged inside the tail gas treatment tank (1); a circulating cold water pipe (2) is arranged in the tail gas treatment tank (1) along the flow track of the tail gas; a filter screen (3) is arranged in the tail gas treatment tank (1) for filtering tail gas impurities; a drain port (16) and a drain valve (17) are arranged at the bottom of the tail gas treatment tank (1); and a purge port (18) is arranged at the top.

2. A pre-treatment facility for reducing the water content of CO furnace tail gas according to claim 1, characterized in that: A remote humidity meter (4) is arranged in the tail gas treatment tank (1).

3. A pre-treatment facility for reducing the water content of CO furnace tail gas according to claim 2, characterized in that: The water inlet of the circulating cold water pipe (2) is provided with an automatic control valve (21), and the automatic control valve (21) is electrically connected to the remote humidity meter (4).

4. The pre-treatment facility for reducing the water content of CO furnace tail gas according to claim 1 is characterized in that: The tail gas treatment tank (1) is provided with a remote liquid level gauge (5).

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