CN2434602Y

CN2434602Y - Verticle coal gasification efficiency smokeless boiler

Info

Publication number: CN2434602Y
Application number: CN 00209032
Authority: CN
Inventors: 李连清
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-04-10
Filing date: 2000-04-10
Publication date: 2001-06-13
Anticipated expiration: 2010-04-10

Abstract

The utility model relates to a vertical coal gasification high-efficiency smokeless boiler, which is composed of a boiler base, a boiler body, a blower, a wind adjusting box, accessory instruments and valves, wherein, the boiler base is provided with an annular air preheating wind chamber; air to the lower part of a grate and the wind chamber are respectively supplied by the blower via the regulation of two windshields in the wind adjusting box; multiple-layer secondary air pipes with different heights are arranged on the inner wall of a hearth in uniform distribution, and the lower parts of the air pipes are connected with the wind chamber; the sufficient combustion of coal can be enhanced by multiple-layer vortex which is formed by the air supply of the air pipes in the hearth. The utility model has the advantages that the thermal efficiency can be enhanced; the pollution to the environment can be reduced.

Description

Vertical coal gasification high effective smokeless boiler

The utility model relates to the smokeless efficient boiler of a kind of vertical coal gasification, is mainly used in to add hot water.

Existing vertical boiler has only fire grate bottom funnel draught, and its weak point is: coal combustion is insufficient, the thermal efficiency is low, flue dust is big, black smoke is many.

The purpose of this utility model is to overcome above-mentioned weak point of the prior art, and a kind of efficient height is provided, the smokeless efficient boiler of vertical coal gasification that flue dust is few.

The purpose of this utility model can reach by following measure: the utility model boiler is made of jointly furnace bottom (air preheat air compartment), body of heater, air blast, accent bellows, secondary air channel and accessory instrument, valve.Air blast passes through to transfer the bellows stepping to give fire grate bottom and burner hearth air-supply, and the burner hearth air-supply is finished jointly by the secondary air channel of air preheat air compartment and differing heights, makes the multilayer vortex of formation differing heights in the burner hearth by the air-supply of secondary air channel.

The drawing of accompanying drawing is described as follows:

Fig. 1 always schemes in vertical section of the present utility model;

Fig. 2 is that the airduct of Fig. 1 is arranged vertical view;

The utility model is by forming as the lower part: 1 shell end socket, 2 impact tubes, 3 boiler jackets, 4 inside of boiler, 5 convection calandrias, smoke wall on 6,7 lower smoke walls, 8 three layers of airduct, 9 two layers of airduct, 10 one deck airducts, 11 fire doors, 12 preheating air compartments, 13 ash doors, 14 fire grates, 15 secondary air channels, 16 airducts, 17 transfer bellows, 18 air blasts.

Below in conjunction with implement and accompanying drawing the utility model is described in further detail: Fig. 1 represents that vertical section of the present utility model always schemes, boiler jacket (3) and inner bag (4) constitute body of heater, cylindrical furnace connects furnace bottom down, air preheat air compartment (12), preheating air compartment bottom is casting furnace grate (14), be evenly distributed with secondary air channel--one deck airduct (10) of differing heights in the burner hearth along flue (4) inwall, two layers of airduct (9), three layers of airduct (8), airduct top has the wind distributing hole of different angles, and the air blast air feed is given and transferred bellows (17), by an airduct (16), secondary air channel (15) is blown respectively in fire grate bottom and burner hearth.Coal burns on fire grate, coal seam thicker (300-500mm), in order to producing coal gas, the multilayer secondary air channel of differing heights sprays wind with different angles to burner hearth in the burner hearth, form the eddy flow wind of different imaginary radius, force coal gas completing combustion in burner hearth, form flue gas, sweep of gases convection calandria (5), with medium in the heat transferred stove, last smoke wall (6) and lower smoke wall (7) make that the heat in the flue gas is utilized to greatest extent.In a word, the utility model gives heat, air zoning and coal gas generation, multilayer cyclone firing and dedusting in stove to air and organically combines, and finishes by the program of a science, has guaranteed the high effective smokeless burning of fuel gas and little carbon granule and the high-effective dust-removing in the stove.

The utility model contrast prior art has following features:

Fuel combustion is abundant, the thermal efficiency is high, flue gas is few, and environmental pollution is little.

Claims

The smokeless efficient boiler of a kind of vertical coal gasification, comprise shell end socket (1), impact tube (2), boiler jacket (3), inside of boiler (4), convection calandria (5), semicircle airduct (8), (9), (10), preheating air compartment (12), fire grate (14), transfer bellows (17), air blast (18) is characterized in that: furnace bottom is by the air preheat air compartment and transfer bellows to form, and is evenly distributed with the semicircle airduct of multilayer of differing heights in the burner hearth along the inside of boiler inwall, airduct top has the wind distributing hole of different angles, and air blast is by transferring bellows respectively to blowing in fire grate and the burner hearth.