CN1138122C

CN1138122C - Smoke and fire enclosed type secondary combustion heating furnace

Info

Publication number: CN1138122C
Application number: CNB001148834A
Authority: CN
Inventors: 赵富举; 赵辰伟; 赵振伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-05-19
Filing date: 2000-05-19
Publication date: 2004-02-11
Anticipated expiration: 2020-05-19
Also published as: CN1275706A

Abstract

The present invention provides a closed type secondary combustion heating furnace of fireworks, which has the advantages of environmental protection and economy. The present invention comprises a brick setting furnace body, a combustion chamber, a heating chamber, a combustion supporting blowing system and a flue system. The present invention is characterized in that the closed type secondary combustion heating furnace of fireworks comprises a feed port and a discharge port which are closed by wind, a coal-adding and slag-discharging opening, a wind-screen blower system arranged between the heating chamber and the combustion chamber, etc., and has the advantages of smoke elimination, dust removal, high thermal efficiency, energy conservation, low air pollution, etc. The present invention can be used as forging heating furnaces and heating furnaces of other kinds of industry.

Description

A kind of smoke and fire enclosed type secondary combustion heating furnace

The invention belongs to forge and use heating furnace, particularly a kind of heating furnace of forging usefulness of brick type.

In existing heating furnace, particularly in the coal-fired furnace, Chinese patent 96120274 discloses a kind of heat treated hot-blast fume-removing energy-saing reflection heating furnace that is used for, it has adopted the semi-automatic circulation coal system that is provided with hydraulic electric appliance control, hot blast gasification systems etc., its equipment are formed comparatively complicated, and at present, forging the heating furnace that employed refractory brick is built into, primary structure is brick body of heater, and the combustion chamber in the body of heater adds the heating clamber of hot forging, fire grate, the coal slag notch, feed inlet and outlet, blowing bed, blowing bed and fire grate are in a plane, and the air blast of a combustion-supporting coal and pipe-line system etc.It is smoldered everywhere, burns with anger in burning adds the igniting of hot forging and uses, and the thermal efficiency is very low, the serious waste coal, and dirty cigarette environment, the forge piece blank reheating heating is uneven, and its technical merit is lower.

The objective of the invention is to improve at the deficiency of above-mentioned brick heating furnace, a kind of energy savings is provided, thermal efficiency height prevents the smoke and fire enclosed type secondary combustion heating furnace of smoke contamination.

A kind of enclosed type secondary combustion heating furnace provided by the present invention is to realize like this, it comprises brick body of heater, coal combustion chamber in the body of heater, second-time burning adds the heating clamber of hot forging or foundry goods, fire grate under the combustion chamber, the coal filling hole and the slag notch of the both sides, combustion chamber on the body of heater, the feed inlet and outlet of heating clamber both sides, the heating clamber inner bottom part add hott bed, the blower system of coal-fired combustion-supporting, storage ashcan under the fire grate, its characteristics also comprise the flue system of the dedusting of discharging fume, and there is the valve that connects sealing cigarette air port air supply line and control air quantity in the air port of the coal of combustion chamber and slag notch and feed inlet and outlet sealing pyrotechnics on the body of heater, and the air curtain blowing mouth that prevents pyrotechnics backspace combustion chamber on the body of heater top between heating clamber and the combustion chamber, there is the above air supply line of two-way to connect blowing mouth, cartridge control valve door on it, described flue system is by chimney, body of heater outer to chimney and the body of heater the flue under the blowing bed, and form with the smoking pipeline of the sealing pyrotechnics mutual conduction of feed inlet and outlet.

The heating height of bed of above-described heating clamber is in the fire grate of combustion chamber, be provided with edge, hole by one side of combustion chamber adding hott bed a little more than bed surface, the furnace roof of described heating clamber and combustion chamber is to combustion chamber arc arch brick arch from low to high by heating clamber, and on arch brick arch, be filled with heat-insulation layer, the described blast orifice of pyrotechnics backspace combustion chamber that prevents is infundibulate, up big and down small, the position of its installation is on the arch arch on the edge, hole, its funnel blowing mouth has more than six along the length direction of heating clamber, the wind direction heating clamber direction of being blown, with the plumb line deflection best angle of blowing bed be 30 degree angles.

The above feed inlet and outlet is made of interior arch, outer arch, sealing wind infundibulate air port, and arch diameter forms the shelves brattice body of blast in heating clamber greater than outer arch in it.

A kind of smoke and fire enclosed type secondary combustion heating furnace provided by the present invention, owing to adopt two air blasts and two cover blower systems, use wind to carry out the pyrotechnics sealing at feed inlet and outlet, coal filling hole and slag notch, particularly on the furnace roof between heating clamber and the combustion chamber, adopted combustion-supporting and prevented the air curtain blowing device of pyrotechnics backspace combustion chamber, make the abundant second-time burning of carbon monoxide in the flue dust of backspace, and can control the heating-up temperature of the forge piece blank reheating that adds hott bed or foundry goods and make the heated object thermally equivalent by its valve.It has energy savings, and thermal efficiency height prevents advantages such as smoke contamination, since simple in structure, fire-resistant brickwork construction adopted, and its cost cost is low, is specially adapted to applying of small towns, individual enterprise, belongs to environment-friendly type and economical heating furnace.

Describe embodiments of the invention in detail below in conjunction with accompanying drawing.

Fig. 1 is the schematic perspective view of smoke and fire enclosed type secondary combustion heating furnace;

Fig. 2 IV-IV heating furnace adds the hott bed horizontal cross;

Fig. 3 is an III-III heating furnace furnace roof cutaway view;

Fig. 4 is the smoke and fire enclosed type secondary combustion heating furnace front view;

Fig. 5 is an I-I heating furnace feed inlet and outlet cut away left side view;

Fig. 6 is a heating furnace master cutaway view;

Fig. 7 is the cutaway view of heating furnace right side II-II air curtain mouth, combustion chamber.

Fig. 1 is to smoke and fire enclosed type secondary combustion heating furnace shown in Figure 7, it has brick body of heater 1, coal combustion chamber 2 in the body of heater, second-time burning adds the heating clamber 3 of hot forging, fire grate 4 under the combustion chamber, the coal filling hole 5 of body of heater upper combustion chamber both sides, slag notch 6, the feed inlet and outlet 7 of heating clamber both sides, add hott bed 8 in the heating clamber, the blowing line system 9 of coal-fired combustion-supporting, the storage ashcan 10 under the fire grate, and the flue system 11 of the dedusting of discharging fume in addition, the coal of combustion chamber and slag notch, the air port 12 of feed inlet and outlet sealing pyrotechnics, it is connected the valve 14 of the control air quantity in the pipeline with sealing blowing line 13 on the body of heater, Fig. 3, prevent pyrotechnics backspace combustion chamber on heating clamber of pointing out among Fig. 4 and the body of heater top between the combustion chamber, and help the air curtain blowing mouth 15 of second-time burning, and there is the above air supply line of two-way 16 to connect blowing mouths, dress is controlled the valve 14 of wind size it on.Described flue system is by chimney 17, stove outer to chimney, the body of heater the flue 18 under the blowing bed, on the stove external flue, offer the manhole 29 of the dust that is used to clean flues, the compositions such as smoking pipeline 19 that the sealing pyrotechnics air port of its flue and feed inlet and outlet is conducted.

Among Fig. 6, the heating height of bed of described heating clamber is in the fire grate of combustion chamber, on the edge of the combustion chamber that adds hott bed, be provided with the edge of a kang 20 that is higher than bed surface, the furnace roof of described heating clamber and combustion chamber is for to bow to the high-end arc arch brick arch 21 of combustion chamber from heating clamber, and its structure helps second-time burning cigarette, carbon monoxide; And on arch brick arch, be filled with heat-insulation layer 22.The described air curtain blowing mouth of pyrotechnics backspace combustion chamber that prevents is infundibulate, up big and down small, it preferably is installed in the hole along on the pairing furnace roof arch brick arch, Fig. 3, Fig. 7, and its funnel blowing mouth has a plurality of and connects plural air-supply pipeline along the length direction of heating clamber.Blowing has 30 angles 24 of spending to the heating clamber direction partially with the vertical line that adds hott bed, and the feed inlet and outlet described in Fig. 2, Fig. 5 is by interior arch 25, outer arch 26, sealing wind infundibulate air port 27 constitutes, and its interior arch diameter is greater than outer arch diameter, and formation is with the shelves brattice body 28 of blast in heating clamber.Fig. 7 also indicates the air port 23 of the sealing pyrotechnics in coal filling hole and the slag notch body of heater.Described the top of hott bed that add is built into by standing up the refractory brick of putting.

A kind of smoke and fire enclosed type secondary combustion heating furnace provided by the present invention is a kind of type of furnace simple to operate, and working condition is good, and air pollution is little.It drives closed conduct blower system and coal combustion blower system by dual blower, when igniting or coal, at first, opens the sealing air blast, simultaneously the air curtain pipe valve is turned down, and sealing wind blocks feed inlet and outlet, the flue dust of coal and slag notch, and guarantee that flue system is unimpeded.Next is opened combustion-supporting coal air blast and blows the fire, after the fire of combustion chamber enters heating clamber, can add hot forging according to burning, the situation of being heated of (also can be heat treated foundry goods), valve in the adjustment air curtain pipeline is controlled the air quantity of each blowing mouth, adjust the heating clamber temperature distribution state, the forging material of heating is heated evenly.

Smoke and fire enclosed type secondary combustion heating furnace provided by the present invention is environment-friendly type and Eco-power forging industrial furnace, also can be used as other heat industrial furnaces and uses.

Claims

1, a kind of smoke and fire enclosed type secondary combustion heating furnace, it comprises brick body of heater (1), the coal combustion chamber (2) of body of heater, second-time burning adds the heating clamber (3) of hot forging, fire grate under the combustion chamber (4), the coal filling hole of body of heater upper combustion chamber both sides and slag notch (6), the feed inlet and outlet of heating clamber both sides (7), add hott bed (8) in the heating clamber, fire coal helps and burns blower system (9), the storage ashcan (10) under the fire grate, it is characterized in that: it comprises the flue system (11) of the dedusting of discharging fume, the air port (12) of the coal of combustion chamber and slag notch and feed inlet and outlet sealing cigarette, the air supply line (13) in connection air port on the body of heater, the valve (14) of its control air quantity; And the air curtain blowing mouth (15) that prevents pyrotechnics backspace combustion chamber on the body of heater top between heating clamber and the combustion chamber, connecting blowing mouth has two-way air supply line (16) at least, the control air valve (14) on it; Described flue system (11) is by chimney (17), stove outer to chimney and the body of heater the flue (18) under the blowing bed, and form with the smoking pipeline (19) of the sealing pyrotechnics air port mutual conduction of feed inlet and outlet.

2, a kind of smoke and fire enclosed type secondary combustion heating furnace according to claim 1, it is characterized in that: the heating height of bed of described heating clamber is in the fire grate of combustion chamber, adding hott bed by being provided with the edge of a kang (20) that is higher than bed surface on the limit of combustion chamber, the furnace roof of described heating clamber and combustion chamber for by heating clamber to the combustion chamber by the low arc arch brick arch (21) that uprises, and on arch brick arch, be filled with heat-insulation layer (22); The described air curtain blowing mouth (15) of pyrotechnics backspace combustion chamber that prevents is infundibulate, up big and down small, its installation site is on the corresponding arch arch in edge, hole, its funnel blowing mouth has six at least along the length direction of heating clamber, and the wind direction heating clamber direction of being blown has 30 angles of spending (24) partially with the vertical line that adds hott bed.

3, according to the described a kind of smoke and fire enclosed type secondary combustion heating furnace of claim 1 to 2, it is characterized in that: described feed inlet and outlet is by interior arch (25), outer arch (26), sealing wind infundibulate air port (27) constitutes, its interior arch diameter is greater than outer arch, and formation is with the shelves brattice body (28) of blast in heating clamber.

4, according to the described a kind of smoke and fire enclosed type secondary combustion heating furnace of claim 1 to 2, it is characterized in that: described the top for founding brick structure of hott bed that add is provided with the manhole (29) of the dust that cleans flues in the described stove external flue.