CN2641527Y

CN2641527Y - Horizontal hot-blast stove

Info

Publication number: CN2641527Y
Application number: CN 03260519
Authority: CN
Inventors: 李兰廷
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-09-10
Filing date: 2003-09-10
Publication date: 2004-09-15
Anticipated expiration: 2013-09-10

Abstract

A horizontal type air heating furnace relates to an air heating furnace. A plurality of vertical type air heating furnaces is simultaneously applied sometimes in the existing large coal mines and large foodstuffs drying departments, which not only increases expenditure to the coal mines and foodstuffs drying departments but also the laboring intensity of workers. The parallel connection of a plurality of vertical type air heating furnaces occupies a large space and wastes the land resource. The utility model comprises a hearth(1), a fire grate(2) arranged in the hearth(1), a heat emission arch(3) arranged between the inner upper walls(1-1) of the hearth(1) and fire grate(2), wherein the heat emission arch(3) is fixedly connected with the lateral wall of fire grate. The heat productivity inside the hearth can reach 600,000 to 9000,000 kcal and the thermal efficiency is a plurality of times and dozens of times than the vertical type air heating furnace. The utility model occupies less space with a high thermal efficiency, reduces the cost and lightens the labor intensity of workers, but also is convenient for mounting and maintaining and is favorable for promoting and applying.

Description

Horizontal hot air furnace

Technical field: the utility model relates to a kind of hot-blast stove.

Background technology: along with the progress of development and national economy and society's science and technology, colliery and grain heat-drying industry constantly enlarge, the hot blast rate of depending merely on a vertical hot furnace is far from being enough, so present large-scale colliery and large-scale grain heat-drying department often just can reach requirement with in parallel use of several vertical hot furnaces, this has increased expense not only for mine and grain heat-drying industry, increased working strength of workers, and several the vertical hot furnace floor spaces of using in parallel are big, waste land resource.

The utility model content: the purpose of this utility model is to provide the horizontal hot air furnace that a kind of floor space is little, efficient is high, it comprises burner hearth 1, be provided with fire grate 2 in the burner hearth 1, between the inboard upper wall 1-1 of fire grate 2 and burner hearth 1, be provided with heat radiation arch 3, described heat radiation arch 3 and burner hearth sidewall Joint.The utility model is equipped with the heat radiation arch in burner hearth, the flame of burner hearth is with the roasting warm of heat radiation arch, on the coal that the heat radiation arch extremely burns heat radiation again, the heat of coal is significantly raise, burn more fully, simultaneously firebreak is set in the rear end of burner hearth, the upper end of firebreak and heat radiation arch are affixed, and it is gone out after heat is circulated in stove again, has further increased the temperature of burner hearth, make further fully burning of coal, improved the thermal efficiency, the caloric value in the utility model burner hearth can reach 600,000 kilocalories-9,000,000 kilocalorie, and its thermal efficiency is several times even tens times of vertical hot furnace, its floor space is little, thermal efficiency height has been saved cost, has alleviated working strength of workers, installation and maintenance is all very convenient, is beneficial to and applies.

Description of drawings: Fig. 1 is a structural representation of the present utility model, and Fig. 2 is the A-A profile of Fig. 1.

The specific embodiment: present embodiment comprises burner hearth 1, be provided with fire grate 2 in the burner hearth 1, fire grate 2 is a traveling-grate stoker, above the front end of fire grate 2, be provided with automatic coal bunker 6, automatically coal bunker 6 can be automatically to coal on the fire grate, between the inboard upper wall 1-1 of fire grate 2 and burner hearth 1, be provided with heat radiation arch 3, described heat radiation arch 3 and burner hearth sidewall Joint, heat radiation arch 3 is built by laying bricks or stones by refractory brick, and cross section is a circular arc, circular arc heat radiation arch can be better the coal surface of reflect heat to the fire grate, described heat radiation arch 3 comprises face arch 3-1, the oblique lower end that is fixed on body of wall 4 of face arch 3-1, heat radiation arch 3 also comprises rear arch 3-2, be provided with firebreak 5 in the rear end of fire grate 2, firebreak 5 can fall lime-ash by the collision effect fully, it is outdoor to avoid lime-ash to discharge, play environmental-protection function, the upper end sealing of the rear end of described rear arch 3-2 and firebreak 5 is affixed, firebreak 5 is the refractory brick manufacturing, the upper end and the rear arch 3-2 of firebreak 5 are sealedly and fixedly connected, heat is circled round in firebreak 5, be transformed in the heat exchanger then, because the heat in the burner hearth continues to raise, so the coal of burning can burn more fully, has improved the burning of coal rate greatly, has improved switching energy.

Hot-blast stove roof innermost layer 7 of the present utility model is built by laying bricks or stones for refractory brick, be insulation asbestos layer 8 and fire-resistant soil layer 9 then successively, outermost layer 10 is ordinary red bricks, the heat insulation effect that can play with such structure, and the problem that can avoid all building by laying bricks or stones and cause cost to increase with refractory brick, hot-blast stove sidewall body of wall internal layer 4-1 is a fire brick layer, wall external layer 4-2 is the ordinary red brick layer, between internal layer 4-1 and outer 4-2, leave the dilatation joint 14 of 20～30mm, when expanding when the rising of refractory brick temperature, dilatation joint 14 can avoid body of wall to advance to split.

The utility model is connected with channel-section steel 13 on furnace body outer wall, channel-section steel 13 can be avoided the hot-blast stove distortion as the external skeletal of hot-blast stove, has increased the intensity of hot-blast stove, prolongs the service life of hot-blast stove.

Claims

1, a kind of horizontal hot air furnace, it comprises burner hearth (1), is provided with fire grate (2) in the burner hearth (1), it is characterized in that being provided with between the inboard upper wall (1-1) of fire grate (2) and burner hearth (1) heat radiation arch (3), described heat radiation arch (3) and burner hearth sidewall Joint.

2, horizontal hot air furnace according to claim 1 is characterized in that described heat radiation arch (3) comprises face arch (3-1), the oblique lower end that is fixed on body of wall (4) of face arch (3-1).

3, horizontal hot air furnace according to claim 1 is characterized in that heat radiation arch (3) also comprises rear arch (3-2), is provided with firebreak (5) in the rear end of fire grate (2), and the upper end sealing of the rear end of described rear arch (3-2) and firebreak (5) is affixed.