TH13980B - Process and flue gas treatment system - Google Patents

Abstract

DC60 (20/06/45) This invention offers a flue gas treatment system that includes a contact instrument. Of gas-liquid Consisting of a tank (1) which feeds the absorbed fluid into it. Absorption tower on the side 2 input channels with consistent cross-sectional shape This extends upward from part of the side part of the tank, and here the absorbent fluid inside the tank is injected upward from a horizontally spaced position. In the form of a liquid column in order to bring the untreated flue gas into gas-liquid contact. With the absorption fluid, and the absorption tower on the outlet side (3) having a uniform cross-section shape that It extends upward from the other side of the tank, and here the absorbent fluid inside the tank is injected upward from the A large, horizontally spaced position in the form of a liquid column in order to take the gas from the flue gas outlet. From the absorption tower on the input channel side It enters the gas-liquid contact with the absorption fluid again. Here, one of the absorption tower on the inlet side and the absorption tower on the outlet side are formed in the form of a tower. Absorb the flow - parallel. Here the flue gas flows downstairs, and another chamber of the absorption tower. Inlet side and absorption tower; exit channel side It is created in the form of a counter-flow absorption tower where gases from the flue flow upward. And here the cross-sectional area of the flow channel in Flow-parallel absorption tower Therefore, the flue gas has a high flow velocity, which likes dust collection and sulfur dioxide absorption, and the cross-sectional area of its path. The flow in the counter flow absorption tower is determined to be larger than that in the parallel flow absorption tower, so flue gas has a low flow velocity, which prefers sulfur dioxide uptake by Counter-flow gas-liquid exposure, therefore, sulfur removal and dust removal can This can be achieved with a smaller and cheaper tool construction. Moreover, the spray hose (8) inside the absorption tower on the outlet side (3) is positioned. Along two different vertical positions Therefore, those pipes are arranged in an indentation relationship at the position. At two different positions in the direction of flue gas flow This makes it possible to increase the density. The distribution of the spray hose (7) and by this method will improve the gas-liquid contact efficiency. Without increasing flow resistance The invention presents a flue gas treatment system that includes an exposure apparatus. Of gas-liquid Containing up to (1) which will feed the absorbed fluid into it Absorption tower on the side 2 input channels with consistent cross-sectional shape Which extends upward from part of the side part of the tank and here the internal absorbent fluid is injected upward from a horizontally spaced position. In the form of a liquid column in order to bring the untreated flue gas into gas-liquid contact. With the absorption fluid, and the absorption tower on the outlet side (3) having a uniform cross-section shape that It extends upward from the other side of the tank, and here the absorbent fluid inside the tank is injected upward from the A large, horizontally spaced position in the form of a liquid column in order to take the gas from the flue gas outlet. From the absorption tower on the input channel side In this case, a absorption tower on the inlet side and an absorption tower on the outlet side are formed in the form of a tower. Absorb the flow - parallel. Here the flue gas flows downstairs, and another chamber of the absorption tower. Inlet side and absorption tower; exit channel side It is created in the form of a counter-flow absorption tower where gases from the flue flow upward. And here the cross-sectional area of the flow channel in Flow-parallel absorption tower Therefore, the flue gas has a high flow velocity, which likes dust collection and sulfur dioxide absorption, and the cross-sectional area of its path. The flow in the counter flow absorption tower is determined to be larger than that in the parallel flow absorption tower, so flue gas has a low flow velocity, which prefers sulfur dioxide uptake by Counter-flow gas-liquid exposure, therefore, sulfur removal and dust removal can This can be achieved with a smaller and cheaper tool construction. Moreover, the spray hose (8) inside the absorption tower on the outlet side (3) is positioned. Along two different vertical positions Therefore, those pipes are arranged in an indentation relationship at the position. At two different positions in the direction of flue gas flow This makes it possible to increase the density. The distribution of the spray hose (7) and by this method will improve the gas-liquid contact efficiency. Without increasing flow resistance

Claims (4)

1. Flue gas treatment process for the least removal. Sulfur dioxide And dust contained in flue gas by gas-liquid contact with fluid For absorption, which includes Feeding fluid for absorption into one of the machine's tanks for contact. Gas-liquid contact equipment for such gas-liquid contact. It consists of the inlet side of the absorption tower that extends upward. From the side of the tank and has a uniform cross section covering the first area of the Gas-liquid contact with multiple spray hoses and also With the outlet side of the absorption tower's liquid stream extending upward from the side On the other side of the tank and has one uniform cross-section covering the second area of Gas-liquid contact with multiple spray pipes at the cross-section of the inlet side Such side of the fluid stream of the absorption tower, which is smaller than the cross-section of the outlet on the Such side of the liquid stream of the absorption tower The untreated flue gas is fed downward towards the The inlet side of the absorption tower at the supported flow velocity for Keep dust and sulfur dioxide uptake while fluid spraying. For upward absorption from the tank via a large amount of spray tube on the side. Inlet of the absorption tower at the feed rate at the dust concentration in the flue gas. Smoke is reduced through exposure to untreated flue gas with the Absorbed to reduce dust and sulfur dioxide concentrations and to allow flue gas to flow upward to the aforementioned outlet side of the tower. Absorb at a suitable flow rate for sulfur dioxide uptake. While spraying upward absorption fluid from the tank through the spray hose. Large amount of the outlet side of the absorption tower at the least feed rate value Sulfur dioxide concentrations are reduced by contact of flue gas. Keep the fluid for absorption to further reduce the dust and sulfur-dioxide concentrations. 2. Process according to claim 1. Which feeds the fluid for absorption from the slurry preparation tank. Through a slurry pump 3. Process according to claim 2, where the tank for the preparation of slurry has a stirrer 4. Process according to claim 1 Which feeds the fluid for that absorption inside the tank To the bulk spray tube through the circulation pipe by the circulation pump 5. Gas treatment system from one flue for at least sulfur removal. Dioxide and removal of dust contained in flue gas by gas-liquid contact. With fluid for absorption consisting of A bucket which feeds the fluid for absorption Side inlet of the absorption tower's fluid stream, extending upward from the side. One side of the tank and with a uniform cross-section covering an area of the Contact of gas-liquid and fluid for absorption inside the tank. It is sprayed upwards from one of the bulk injection tubes and is built into the form of an absorption tower. Parallel flow where the flue gas flows downward into contact with the absorbent fluid. For dust collection and absorption of sulfur dioxide and the lateral outlet of the absorption tower's fluid beam extending upward from the side section. The other side of the tank and has a uniform cross-section covering the second Of gas-liquid contact And which fluid for absorption inside the tank It was sprayed upwards from a second injection tube. And built in the form of a tower Absorb the flow opposite that the upward flue gas comes into contact with the absorbed fluid. Falling for sulfur dioxide absorption at the cross-section of the side inlet of The absorption tower is smaller than the cross-section of the aforementioned side of the absorption tower. 6. The system according to claim 5 is also included. Atomization section Which work in connection with The exit side of the absorption tower 7. System according to claim 5, in which the first and second number of spray pipes each contain a certain amount of rat milk 8. System according to claim 5, the aforementioned consistent cross-section ratio in terms of solution In the presence of such a uniform cross section in the inlet side of the aforementioned absorption tower It is in the range of 1.5 to 3.5 9. System according to claim 5, in which the first number of spray pipes are positioned parallel within each other. Entrance of the absorption tower And the second large number of spray pipes are positioned parallel within the exit side of the absorption tower 1 0. System according to claim 7, in which the aforementioned number one is built along the longitudinal axis. Of spray pipe involved 1 1. System according to claim 5, in which the spray pipes are located close to each other in each set of the first and at The above two are alternately positioned at two different vertical positions. 2. The system according to claim 5 also includes a liquid preparation tank and a pump. The slurry for fluid feeding is absorbed into the tank 1. 3. The system according to claim 5 is also equipped with a circulation pump. And pipes for flow Circulates for the feeding of the absorbed fluid from reaching to the spray hose. 4. The system according to claim 12, which reaches for the preparation of slurry, has a stirrer.