Miniature coal-fired boiler dust collector

Abstract

The invention discloses a miniature coal-fired boiler dust collector. The miniature coal-fired boiler dust collector is built at a dust outlet of a boiler, is made of bricks and reinforced concrete and is divided into two parts, the two parts comprises an upper chamber comprising an upper dust chamber, an upper chamber oblique body 1, an upper chamber oblique body 2 and a chimney and also comprises a lower chamber comprising a dust inlet, a water tank, a dust outlet 1, a dust outlet 2, a lower chamber oblique body, a lower chamber vertical plate 1, a lower chamber vertical plate 2 and an automatic water supplement port. Smoke is blown into the water tank of the lower chamber from the dust inlet so that a lot of water splashes and fully contacts with dust, through inertial impaction, adhesion, diffusion, drifting and coacervation action, the most dust particles are mixed with water, the large dust particles settle into the water tank under the action of gravity and automatically slips into the dust outlet 1, the middle and small dust particles go through the vertical plate 1 and the vertical plate 2 of the lower chamber, the middle dust particles fall into the dust outlet 2 of the lower chamber, the miniature dust particles are lifted to the upper chamber by smoke, is blocked by the upper chamber oblique body 2 and falls into the dust outlet 2, and a part of the miniature dust particles slide into the dust outlet 2 along the upper chamber oblique body 1. The miniature coal-fired boiler dust collector can regularly clean the dust outlet 1 and the dust outlet 2. When a water level is decreased, the miniature coal-fired boiler dust collector can realize automatic water supplement by the automatic water supplement port.

Description

technical field [0001] The invention belongs to the technical field of environmental protection and relates to a dust removal device applied to a small coal-fired boiler. Background technique [0002] my country is a large coal-burning country. Coal accounts for about 76% of the total primary energy consumption. The annual consumption of coal is more than 1 billion tons. The soot pollution caused by coal burning is becoming more and more serious. The main pollutants are dust, sulfur dioxide and so on. [0003] The current coal-fired dedusting devices are roughly divided into two categories, one is dry dedusting, and the other is wet dedusting. The dry method mainly includes cyclone dust removal, electrostatic dust removal and bag dust removal. The wet method mainly includes water film dust collector, spray tower, Venturi scrubber and swirl plate tower, etc. The design and structure of the above-mentioned devices are relatively complicated, and the construction cost is hig...

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Problems solved by technology

The design and structure of the above-mentioned devices are relatively complicated, and the construction cost is high, so they are only suitable for larger boilers, and it is difficult to adopt the above-mentioned solutions for small boilers below 2 tons.

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