Foam-dry fog dust suppression technology for ultrafine particle dust discharged disorderly

Abstract

The invention discloses a foam-dry fog dust suppression technology for ultrafine particle dust discharged disorderly. The foam-dry fog dust suppression technology comprises the following steps: 1, foam dust suppression on a dusty point: performing foam dust suppression on the dusty point with dust discharged by materials during smashing, screening, conveying, loading, unloading, removing and construction in inorganization emission source closed and semi-closed places, and spraying foams to the dusty point through a single or a plurality of double-fluid nozzles or a high-pressure single-fluid nozzles; 2, dry fog dust suppression: enabling the dust obtained in the step 1 to enter dry fog layers sprayed by a single or a plurality of double-fluid dry fog spraying guns or high-pressure single-fluid dry fog spraying guns to cover fine particle dust production point regions. Ultrafine dust PM2.5 and PM0.1 is gathered from small particles into large particles under the action of retention, inert collision, dispersion, adsorption and the like between the foams and the dry fogs and is finally subsided and adsorbed to the surfaces of the materials together with broken foam liquid drops; therefore, the dust can be fundamentally prevented from being externally dispersed, and the materials can effectively suppress dust dispersion in the whole process.

Description

technical field [0001] The invention belongs to the field of dust purification and suppression in unorganized discharge places, and in particular relates to the purification and dust suppression process of ultrafine particle dust PM0. . Background technique [0002] The key to dust control is to suppress dust generation, not to collect dust. Once the dust is generated during the material operation and floats in the air, it is difficult to collect the dust effectively, and the cost of collecting the dust will be very high, and even cause secondary pollution to the environment. [0003] The main disadvantage of the traditional sealed dust removal method is that it needs to be shut down for installation, long installation time, large floor space, inconvenient maintenance, poor heat dissipation of the machine, high wear and tear of the machine, poor dust removal effect, and serious damage to the health of the operator; bag type dust removal The main disadvantages of the method...

AI Technical Summary

Problems solved by technology

Once the dust is generated during the material operation and floats in the air, it is difficult to collect the dust effectively, and the cost of collecting the dust will be very high, and even cause secondary pollution to the environment

[0003] The main disadvantage of the traditional sealed dust removal method is that it needs to be shut down for installation, long installation time, large floor space, inconvenient maintenance, poor heat dissipation of the machine, high wear and tear of the machine, poor dust removal effect, and serious damage to the health of the operator; bag type dust removal The main disadvantages of the method are that it needs to be shut down for installation, takes a long time to install, occupies a large area, is inconvenient to overhaul, has high wear and tear on the machine, requires special personnel to maintain, and has high operating costs. The emission of fine particle dust PM0.1 has no effect at all; the main disadvantage of the high-voltage electrostatic dust removal method is shutdown installation, long installation time, and inconvenient maintenance. It can only remove dust from the materials transported on the belt conveyor, and cannot remove the dust generated during the crushing of the crusher. The cost of equipment purchase is high; the main disadvantage of the water spray dust removal method is that the dust suppression effect is not good. It is easy to spray too much water during use, and the product is easy to stick, which will cause the screening machine to be blocked, the humidity of the material will increase, and the abrasiveness will increase, resulting in vulnerability. The service life of components is shortened, and secondary water pollution will be generated

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