CN2481989Y

CN2481989Y - Banking and ash overflow device for small boiler

Info

Publication number: CN2481989Y
Application number: CN 01235071
Authority: CN
Inventors: 颜洪桥
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-05-11
Filing date: 2001-05-11
Publication date: 2002-03-13
Anticipated expiration: 2011-05-11

Abstract

The utility model discloses a fire banking and ash overflowing device of a small boiler (the evaporation capacity is between 1 and 2 ton/hour) with coal as the fuel. The main technical measures are to reduce the distance between the front end of the front arch and the grate surface, to change the middle arch into an arciform with low ends and high middle, and to arrange an ash overflow opening on the rear arch, therefore achieving the goals of fire power concentration, thermal efficiency improvement and automatic ash overflow, and avoiding the boiler fire from rushing to the furnace mouth, thereby quickening the wear and tear of the furnace gate and the coal hopper.

Description

A kind of banking fire of miniature boiler and excessive apparatus for ash

The utility model relates to the coal banking fire and the excessive apparatus for ash of small-sized (evaporation capacity 1-2 ton/hour) boiler that is fuel.

At present some are that the miniature boiler of fuel designs unreasonablely because of face arch and hogging with the coal, cause flame to rush at fire door, cause coal flashboard and coal bunker to be burnt out, even are burnt red.Naturally just quicken the loss of coal flashboard and coal bunker, also increased the weight of heat energy loss.Because design is unreasonable, causes the burner hearth dust stratification serious, has so not only reduced the thermal power transfer of boiler, has also increased kettleman's labour intensity.

Task of the present utility model provides a kind of banking fire and the grey device that overflows, and it makes flame not rush at fire door, and utilizes the gravity effect of coal ash, is implemented in rear arch and overflows grey automatically.

Design of the present utility model is: the shape-designing data that change face arch and hogging are provided with automatic ash overflow port more than two in the rear arch appropriate location.

Fig. 1 is a vertical section of the present utility model schematic diagram;

Fig. 2 is a vertical view of the present utility model;

Fig. 3 is cross section, a face arch middle part schematic diagram.

The number in the figure explanation: the 1-face arch, 2-hogging, the 3-rear arch, the 4-fire clay is smeared the surface, 5-face arch front-axle beam, 6-hogging front end, 7-ash overflow port, 8-grate surface.

Face arch of the present utility model [1], hogging [2] and rear arch [3] are all built with firebrick arch, and thick with the refractory material 30mm that wipes one's face on arch, and press polish, in order to reducing dust stratification.

In order not make flame rush at fire door, the front-axle beam [5] of face arch [1] is designed to from grate surface [8] 160-180mm height.It is high arc in the middle of low that hogging [2] is two, and its hogging front end [6] is from grate surface [8] 380-400mm, long 320-360mm.So not only help the abundant burning of coal, and firepower is concentrated, rush at coal bed, also improve heat energy efficiency from the flame of rear arch.Design at least 2 ash overflow ports [7] on rear arch, its size is 110mm * 110mm, because of hogging [2] is arc, drops on the coal ash of hogging latter half and will slide to rear arch, and automatic overflow be taken from mucking machine in the cinder bucket from ash overflow port out of under the effect of gravity.

Claims

1, a kind of is the banking fire and the excessive apparatus for ash of the miniature boiler of fuel with the coal, comprise face arch [1], hogging [2], rear arch [3], it is characterized in that: its face arch [1] front-axle beam [5] is 160-180mm with the height of grate surface [8], it is high arc in the middle of low that hogging [2] is two, hogging front end [6] is 380-420mm from the height of grate surface [8], long 320-360mm, the hogging middle part is 500-520mm from the height of grate surface [8], and all wiping one's face with refractory material in the top of face arch, hogging and rear arch, [4] 30mm is thick, and press polish.

2,, it is characterized in that on rear arch [3], being provided with the ash overflow port [7] of at least two 110 * 110mm according to right 1 described banking fire and excessive apparatus for ash.