Dehumidifying method of dusty gas and use thereof
A gas and in-gas technology, applied in the field of dehumidification of dusty gas, can solve the problems of high investment and operating costs, failure of dust removal system, low response speed, etc., and achieve the effect of low implementation cost, rapid response and improved quality
Active Publication Date: 2006-02-22
SHANDONG PROVINCE METALLURGICAL ENG CO LTD
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Problems solved by technology
[0004] In the dry dust removal system, in order to prevent the failure of the dust removal system due to the low flue gas temperature, the method of heating the low-temperature flue gas is usually used. The investment and operation costs are high, and the response speed is low and the control is complicated. , is a last resort
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[0016] The specific implementation of the present invention should try to grasp the following key points: 1. The powdery desiccant should be mixed into the dusty gas to be dehumidified by spraying as much as possible, so that it can be evenly distributed in the dusty gas; 2. The powdery desiccant should be dehumidified as soon as possible 3. Since the calcium oxide-based powder desiccant is cheap and easy to get, it is recommended to use it first; 4. On the premise that the final dust removal effect meets the environmental protection requirements, try to use a finer powder 5. Note that the present invention can achieve better results when used in dry dust removal.
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Abstract
Discloses is a method for dehumidification and the application of dust- laden gas, which is particularly suit for the dry dehumidification system. The main process is that: the dust- laden gas is mixed with powder desiccant, which is used to absorb moisture and dry the dust- laden gas. The powder desiccant is mainly calcium oxide. The method for dehumidification is particularly suit for dry dehumidification system, because in the system, preventing condensation of moisture has a important significance. The invention is mainly characterized in that: 1. the method is simple, the desiccant is cheap and facile; 2. the control in convenient.
Description
Technical field [0001] The invention belongs to a dust-containing gas dehumidification method and application thereof, which is especially suitable for a dry dust removal system. Background technique [0002] Many dusty gases, such as gas directly discharged from industrial furnaces such as blast furnaces, coke ovens or converters, often contain a large amount of moisture. The existence of these moisture not only affects the quality of the gas itself, but also affects the smooth progress of subsequent processes. In the dry dust removal system, once the flue gas temperature is too low, it may condense, causing the bag filter of the bag filter to be blocked or the insulation degree of the electrostatic precipitator to be reduced, resulting in the failure of the dust removal system. [0003] The existing gas dehumidification method usually adopts the adsorption method of regenerable solid or liquid adsorbent placed in the adsorption bed, adsorption wheel or adsorption tank. T...
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IPC IPC(8): B01D53/26C21B5/06
Inventor 姚朝胜钱纲黄东升衣忠德刘忠泉魏新民
Owner SHANDONG PROVINCE METALLURGICAL ENG CO LTD