Gas-solid combination directional flow collecting dust suction device and method

Abstract

The invention relates to a gas-solid combination directional flow collecting dust suction device which comprises at least one flow collecting dust suction cover. The flow collecting covers can be arranged horizontally or vertically or laterally and are located above a pollution source or on the side face of the pollution source. The gas-solid combination directional flow collection dust suction device further comprises air curtain injection pipes which are arranged at one side and the two sides or the periphery of the at least one dust suction cover. The air curtain injection pipes are provided with air spraying holes. The air spraying holes spray air into narrow slit suction openings or horn-shaped suction openings or the suction openings of other specified shapes of the flow collecting covers so that an air curtain can be formed. Air on the upper portion of the air curtain can be stopped from being sucked in, and a controlled flow field located below the air curtain forms airflow which makes directional gathering movement towards a center suction opening at a set flow speed. By means of the gas-solid combination directional flow collecting dust suction device, the application range of a negative-pressure suction pollution control mode is widened obviously, the energy-saving potentials are good, and particularly it has great breakthrough application value to treatment of the pollution source which needs to be visually operated and meanwhile cannot be tightly closed by any solid material or be partially isolated.

Description

technical field [0001] The invention relates to a gas-solid combined directional current collection and dust suction device, and also relates to a gas-solid combined directional current collection and dust suction method, which belongs to the field of environmental protection and cleaning. Background technique [0002] During many material processing, transportation, loading and unloading, heating and other operations, dust and polluted gases will escape and pollute the environment. It is a common method to capture or confine these polluting dust or gases by using a negative pressure suction hood, and then pass them through purification devices such as dust collectors and then discharge them up to standard. There are already very mature theories, technologies and devices, too numerous to mention. For situations where a closed or relatively closed system can result, modern dedusting or other controllable pollution techniques have worked well. However, for a long time, when ...

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Problems solved by technology

[0004] Aiming at the above-mentioned problems in industrial production that require visual monitoring and operation, but cannot be sealed or isolated by solids, require a large area of ​​pollution control, and are difficult to suppress the diffuse dust and the diffusion of polluted gases, the specific solutions provided by the present invention are as follows:

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