Coal gas generation and combustion device for heating sand and gravel in asphalt mixing station

Abstract

The invention relates to a gas generation and combustion device for heating gravel of an asphalt mixing station. The gas generation and combustion device comprises n gas producers (4), n dust removers (10), feeding mechanisms (5) and n combustors (12), wherein the n gas producers (4) are arranged in parallel; the n dust removers (10) correspond to or are matched with the n gas producers (4); the feeding mechanisms (5) are arranged on the gas producers (4); gas output holes are formed in the upper parts of the gas producers (4), and are communicated to gas inlets of the corresponding dust removers (10) through a gas three-way pipe (11a); gas outlets of the dust removers (10) are communicated to gas inlets of the corresponding combustors (12) through gas output pipes (11); the multiple combustors (12) are placed in parallel, are separated from one another by support partition plates (126), and are externally fixed by enclosing plates (127). According to the gas generation and combustion device disclosed by the invention, rotating air distribution plates (1210) and gas distribution plates (1211) of the combustors (12) are rotationally symmetrically placed, and flames can be complemented with each other rotationally without generating turbulent flow during combustion of the combustors (12), so that the heat efficiency is enhanced; the combustors can work independently or simultaneously.

Description

technical field [0001] The invention relates to a coal gas generating and burning device for heating sand and gravel materials in an asphalt mixing station, which provides a heat source for heating sand and gravel materials for the asphalt mixing station. technical background [0002] At present, asphalt mixing equipment in the road construction and maintenance industry uses heavy residue oil for heating stone materials. Diesel, natural gas or coal are directly used as fuel to heat sand and stone materials. Sufficient, which will adversely affect the quality of asphalt concrete; the use of diesel oil has the disadvantages of high price, unsafe storage and transportation, and sometimes it is difficult to purchase diesel oil; the use of natural gas is affected by the region and the location of the asphalt mixing station, and is limited to low natural gas prices and must be close to gas The asphalt mixing plant near the main pipeline can only be used; the use of pulverized coal...

AI Technical Summary

Problems solved by technology

[0008] 5) High environmental safety requirements

The asphalt mixing plant is a large-scale mechanical processing equipment. During production, there are many people and equipment around, and the work site is complicated.

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