CN2644902Y

CN2644902Y - Down-draft kiln smokeless reciprocating furnace bed arced crown vault coal-burning installation

Info

Publication number: CN2644902Y
Application number: CN 03209857
Authority: CN
Inventors: 周兴初
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-08-18
Filing date: 2003-08-18
Publication date: 2004-09-29
Anticipated expiration: 2013-08-18

Abstract

The utility model discloses an arc vault coal-burning device with smokeless reciprocating grate for down draught kiln, which comprises a coal hopper, a body, and a driver. The utility model is characterized in that: a bracket and two wind warehouse separators are arranged at the bottom of the body; fire grates are arranged on the bracket through a pulley, and the coal hopper is arranged above one end of the grate. A plurality of arc vaults are vertically arranged above the grate and near the coal hopper. A fire outlet is transversely arranged at the lower part of the middle arc vault; a slag removal room is arranged at the lower part of the end arc vault; an observation window is arranged at one end of body. The driver is connected with grate through a coupled axle. The utility model has reasonable and simple structure and can burn coal completely, which can fundamentally solve the problem about black smoke of down draught kiln. The utility model can automatically refill coal, reduce labor intensity, improve working environment, and meet environmental requirements, can also be applied to rotary kilns, reflective aluminum melting kilns, tunnel kilns, glass ovens, steel rolling furnaces, enamel furnace and other furnaces.

Description

Down-draft kiln does not have black smoke reciprocal grate camber vault coal-burning installation

Technical field

The utility model relates to the burner of stove, and specifically a kind of down-draft kiln does not have black smoke reciprocal grate camber vault coal-burning installation.

Background technology

Down-draft kiln is a ceramic industry flame stove commonly used, and furnace kiln structure is flat shape and stairstepping fixed grate mostly, adopts manual batch (-type) coal, the labour intensity height, energy waste is big, simultaneously the chimney dense black smoke of emerging intermittently, atmosphere is caused severe contamination, influence existent environment of people.

Summary of the invention

The purpose of this utility model is that a kind of down-draft kiln that designs at the deficiencies in the prior art does not have black smoke reciprocal grate camber vault coal-burning installation, it adopts, and mechanical reciprocating type automatic stoking is slagged tap, the combustion chamber of camber vault, the different percent openings and the reasonable wind distribution of reciprocal grate, make not over-emitting black exhaust of the kiln of falling cigarette chimney, energy efficient, reduce labour intensity, reduce environmental pollution.

The concrete technical scheme that realizes the utility model purpose is:

Down-draft kiln does not have black smoke reciprocal grate camber vault coal-burning installation, comprise coal bunker, body, driver, characteristics are that the body inner bottom part is provided with support, two wind storehouse dividing plates, support is equipped with fire grate by pulley, fire grate one end top is provided with coal bunker, fire grate top, coal bunker side vertically are provided with several sections cambers arches, stage casing camber arch lower, transverse one side is established an ignition mouth, rear camber arch bottom is provided with slag removing chamber, several sections camber arches are one, and be connected with body, body one end is provided with observation window, and driver connects fire grate by couple axle.

The percent opening of described fire grate is followed successively by 0,3%, 15～17%, 8%, 3% from front to back.

Described two wind storehouse dividing plate a slices are totally-enclosed, and another sheet is semiclosed.

The utility model is rational in infrastructure, simple, can make coal burning complete, fundamentally solved the problem of the kiln of falling cigarette over-emitting black exhaust, automatic stoking, reduce labour intensity, improve work situation, reach environmental requirement, and be applicable to rotary kiln, reflective aluminium melting kiln, tunnel cave, glass furnace, heater for rolling steel, enamelling kiln etc.

Description of drawings

Fig. 1 is the utility model structural representation

Fig. 2 be among Fig. 1 A-A to view

Fig. 3 is the utility model outline drawing

Fig. 4 is the vertical view of Fig. 3

The specific embodiment

Consult Fig. 1, the utility model comprises coal bunker 1, body 15, driver 14, characteristics are that body 15 inner bottom parts are provided with support 17, wind storehouse dividing plate 7,8, support 17 is equipped with fire grate 6 by pulley 16, fire grate 6 one ends top is provided with coal bunker 1, fire grate top, coal bunker 1 side vertically are provided with several sections cambers arches 2,4,5, camber encircles 4 lower, transverse, one side establishes an ignition mouth 3, camber encircles 5 bottoms and is provided with slag removing chamber 12, several sections camber arches are one, and be connected with body 15, body 15 1 ends are provided with observation window 10, and driver 14 connects fire grates 6 by couple axle 18; Wind storehouse dividing plate 7 is totally-enclosed, and wind storehouse dividing plate 8 is semiclosed.

Consult Fig. 2, fire grate 6 is a reciprocal grate in the utility model, and the percent opening of fire grate is followed successively by 0,3%, 15～17%, 8%, 3% from front to back.

Consult Fig. 3,4, the utility model also is provided with air blast 9, ashpit 13, combustion chamber fire door 11.

The utility model is work like this: after filling it up with coal in the coal bunker 1, start driver 14, make fire grate 6 odd

number fire grates

1,3,5 by power transmission shaft 18 ... carry out front-rear reciprocation movement, even numbers fire grate 2,4,6 ... for fixing, coal is constantly carried to fire grate 6 from coal bunker 1, and coal input quantity is by promoting the decision of frequency and mobile range; When coal entered camber and encircles 2 belows, owing to the radiant heat reason, coal was heated and catches fire, there is not required airflow this moment, so coal bunker 1 below fire grate 6 need not perforate, coal continues to advance the beginning normal combustion, and the oxygen amount that needs is increasing, fire grate 6 percent openings also increase thereupon, when coal enters into camber and encircles 4 belows, just entered into the territory, primary zone, need the oxygen amount maximum, fire grate 6 percent openings are maximum herein, and side is got angry and mouthfuls 3 a large amount of thermal-flames sprayed in the down-draft kiln simultaneously; Encircle 5 belows when coal enters camber, combustible component reduces gradually in the coal, and fire grate 6 percent openings also reduce thereupon herein, and blast also reduces gradually; Burning completely, cinder enters slag removing chamber 12.

Test shows that the utility model is than the traditional kiln of falling cigarette burner fuel saving about 10%, and blackness of exhaustion is less than 1 grade of Lin Kemandu, dust concentration, SO ₂Concentration can reach environmental requirement much smaller than the tradition kiln of falling the cigarette.

Claims

1, a kind of down-draft kiln does not have black smoke reciprocal grate camber vault coal-burning installation, comprise coal bunker (1), body (15), driver (14), it is characterized in that body (15) inner bottom part is provided with support (17), wind storehouse dividing plate (7), (8), support (17) is equipped with fire grate (6) by pulley (16), fire grate (6) one ends top is provided with coal bunker (1), fire grate (6) top, the other several sections camber arches (2) that vertically are provided with of coal bunker (1), (4), (5), camber arch (4) lower, transverse one side is established an ignition mouthful (3), camber arch (5) bottom is provided with slag removing chamber (12), several sections camber arches are one, and be connected with body (15), body (15) one ends are provided with observation window (10), and driver (14) connects fire grate (6) by couple axle (18).

2, coal-burning installation according to claim 1 is characterized in that described fire grate (6) percent opening is followed successively by 0,3%, 15～17%, 8%, 3% from front to back.

3, coal-burning installation according to claim 1 is characterized in that described wind storehouse dividing plate (7) for totally-enclosed, and wind storehouse dividing plate (8) is semiclosed.