CN2389287Y

CN2389287Y - Gas heating furnace

Info

Publication number: CN2389287Y
Application number: CN 99242989
Authority: CN
Inventors: 高友超
Original assignee: QINGDAO RIGGING FACTORY
Current assignee: QINGDAO RIGGING FACTORY
Priority date: 1999-09-13
Filing date: 1999-09-13
Publication date: 2000-07-26
Anticipated expiration: 2009-09-13

Abstract

The utility model relates to a gas heating furnace which is used for heating a metal piece, and particularly, the utility model overcomes the defects of a heating reverberatory furnace, such as energy wasting and environmental pollution. The utility model comprises a gas generating jar and a combustion furnace, wherein, the gas generating jar comprises a jar body 1, a heat insulation layer 2, a feed inlet 3, a furnace cover 4, a furnace base 9 and a slag outlet 10; the combustion furnace comprises a furnace body 5, a combustion chamber 6, a feed port 7 and a discharge port 8; a water tank 11 which is provided with an air inlet pipe 12 is arranged under the furnace base 9; the upper part of the jar body 1 is provided with an air outlet duct 13 which is communicated with the combustion chamber 6, and one end of an air inlet pipe 14 is communicated with the air outlet duct 13. The utility model has the advantages that the coal consumption is low; the environmental protection requirement can be met.

Description

Gas-fired furnace

The utility model relates to a kind of gas-fired furnace that metalwork is heated of being used for.

Metal heat treatmet or metal forging processing all need metalwork is heated, a kind of heating reverberatory furnace of normal at present employing, and it has combustion chamber and heating clamber, and the combustion chamber is communicated with heating clamber.Coal is at first in the combustion chamber internal combustion, and the flame that burning produces enters heating clamber through passage, and the metalwork in the heating clamber is heated.This heating reverberatory furnace coal consumption is big, wastes energy, and contaminated environment, and inhomogeneous to the metalwork heating, often cause the metalwork surface temperature too high, and inside does not reach required temperature.

The purpose of this utility model is to provide a kind of coal consumption little, the gas-fired furnace of compliance with environmental protection requirements.

The purpose of this utility model is achieved in that gas-fired furnace, comprises coal gas generation tank and combustion furnace; The coal gas generation tank has tank body 1, heat-insulation layer 2, be positioned at the charge door 3 of tank body 1 upper end, cover bell 4 on charge door 3, be positioned at the furnace bottom 9 of tank body 1 lower end and be positioned at the slag notch 10 of tank body 1 bottom one side; Combustion furnace has body of heater 5, combustion chamber 6, charging aperture 7 and discharging opening 8; Its special character is, the below of furnace bottom 9 has tank 11, and tank 11 has blast pipe 12; The top of tank body 1 has escape pipe 13, and escape pipe 13 is communicated with combustion chamber 6, and an end of blast pipe 14 is communicated with escape pipe 13.

Tank body 1 is used for the splendid attire coal, and coal produces water-gas in tank body 1 internal combustion.Heat-insulation layer 2 is used for tank body 1 insulation is reduced the thermal loss of tank body 1, and charge door 3 is used for coal in tank body 1, and bell 4 is used for charge door 3 sealings.Furnace bottom 9 is netted or strip, and it is used to make from the air of blast pipe 12 with from the steam of tank 11 and enters in the tank body 1, makes the coal combustion in the tank body 1 produce water-gas, and can prevent that the cinder of bulk from falling in the tank 11.Slag notch 10 is used for the cinder that the intact back of coal combustion forms is discharged tank body 1.Combustion chamber 6 is used to make the water-gas of output in the tank body 1 and AIR MIXTURES burning generation heat that the metalwork that is placed on is wherein heated.Charging aperture 7 is used for the metalwork to be heated of packing in combustion chamber 6, discharging opening 8 is used for the metalwork that 6 interior taking-up heating finish from the combustion chamber.

The outlet air end 20 of blast pipe 12 of the present utility model is positioned at more than the water surface of tank 11, and furnace bottom is below 9.

The air that the outlet air end 20 of blast pipe 12 blows out enters the space between the water surface of furnace bottom 9 and tank 11, and air is entered in the tank body 1 through furnace bottom 9 with steam.

Tank 11 of the present utility model has an end height, the slag notch 15 that the other end is low.

One end height of slag notch 15, the other end is low, not only can with spade enter remove in the tank 11 through furnace bottom 9 fall than thin cinder, can also utilize higher water level with slag notch 15 sealings, the air that blast pipe 12 blows out and the water vapour of the water generates in the tank 17 are all entered in the tank body 11.

Has water leg 16 between tank body 1 of the present utility model and the heat-insulation layer 2.

The utility model is compared with the heating reverberatory furnace and is had the following advantages: one, reach Industrial Stoves Air Pollutant Emission primary standard.The lingemann blackness of heating reverberatory furnace is 1 grade, and smoke dust discharge concentration is 28.2mg/Nm ³Lingemann blackness of the present utility model is a zero level, and smoke dust discharge concentration is 12.1mg/Nm ³Two, the metal forging of 1000 2.57kg of heating, the heating reverberatory furnace need consume coal 1200kg, and the utility model only consumes coal 600kg, energy-conservation 50%; Three, production efficiency obviously improves.The heating reverberatory furnace need skim twice in per 4 hours, ceased fire 20 minutes at every turn, and the coal heating needs about 30 minutes again again again, needs 50 minutes altogether.And the utility model does not descend rapidly owing to the residual coal in the tank body 1 can keep temperature, and when reheating, can reduce more than 60% heat time heating time; Four, the forging of heating reverberatory furnace heating, heart and hull-skin temperature are inconsistent, forge difficulty, and surface scale are more.And the forging of the utility model heating, heart is consistent with surface temperature, is convenient to forge, and the oxide skin on surface is less.

Embodiment to utility model is described in detail below in conjunction with accompanying drawing.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the A-A view among Fig. 1.

Fig. 3 is the B-B view among Fig. 1.

As shown in Figure 1 to Figure 3, present embodiment is a kind ofly to make in the industry at satin, is used for gas-fired furnace that metalwork is heated, and it comprises coal gas generation tank and combustion furnace.The coal gas generation tank has tank body 1, heat-insulation layer 2, charge door 3, bell 4, furnace bottom 9, slag notch 10 and water leg 16.Tank body 1 adopts the steel plate welding to make, and the middle and lower part in his outside is a water leg 16, and top is refractory masses 17.The outside of water leg 16 and refractory masses 17 is heat-insulation layers 2, and water leg 16 has outlet pipe 18 and return pipe 19.The upper end of tank body 1 is a charge door 3, and bell 4 covers on charge door 3.Furnace bottom 9 is made up of the bonding jumper that is parallel to each other and keeps at a certain distance away, and he is positioned at the bottom of tank body 1.Slag notch 10 is positioned at a side of tank body 1 bottom.The below of the furnace bottom 9 of tank body 1 has tank 11, and tank 11 has slag notch 15.One end height of slag notch 15, the other end is low, and the water surface in the tank 11 is with slag notch 15 sealings.Tank 11 has blast pipe 12, and the outlet air end 20 of blast pipe 12 is positioned at more than the water surface of tank 11, and furnace bottom is below 9.Combustion furnace has body of heater 5, combustion chamber 6, charging aperture 7 and discharging opening 8.Body of heater 5 adopts the refractory material manufacturing.The top of tank body 1 has escape pipe 13, and an end of escape pipe 13 is communicated with the inner chamber of tank body 1, the other end and combustion chamber 6 UNICOMs.One end of blast pipe 14 is connected with blower fan 21, the other end and escape pipe 13 UNICOMs.The air intake of blast pipe 12 is communicated with blast pipe 14.Blast pipe 12 and blast pipe 14 have volume damper 23 and volume damper 22 respectively.

During use, at first in tank body 1, add matches and coal, bell 4 is covered on charge door 3 by charge door 3.Light matches then, the coal in the tank body 1 is taken fire.Close slag notch 10, start blower fan 21, in tank 11, be blown into air by blast pipe 12.Because the water surface in the tank 11 is with slag notch 15 sealings, the air that blast pipe 12 is blown into enters in the tank body 1 by furnace bottom 9 together with the water vapour of the water generates in the tank 11.Coal in the tank body 1 burns under this condition, reacts with water vapour, produces water-gas, and water-gas is discharged by escape pipe 13.In escape pipe 13.Water-gas enters combustion chamber 6 burnings with after the air that blast pipe 14 is blown into mixes.Regulate

volume damper

22,23, can regulate the size of flame in the combustion chamber 6.Metalwork joins in the combustion chamber 6 from charging aperture 7, by flame heat, after being heated to required temperature, takes out from discharging opening 8 in combustion chamber 6, is full of water in the water jacket 16, and it can prevent in the coal combustion process inner surface coking at tank body 1.After water in the water jacket 16 are heated, can draw by outlet pipe 18 and be used for heating, flow in the water jackets 16 through return pipe 19 then.

Claims

1, gas-fired furnace comprises coal gas generation tank and combustion furnace; The coal gas generation tank has tank body (1), heat-insulation layer (2), be positioned at tank body (1) upper end charge door (3), cover bell (4) on charge door (3), be positioned at the furnace bottom (9) of tank body (1) lower end and be positioned at the slag notch (10) of tank body (1) bottom one side; Combustion furnace has body of heater (5), combustion chamber (6), charging aperture (7) and discharging opening (8); It is characterized in that the below of furnace bottom (9) has tank (11), tank (11) has blast pipe (12); The top of tank body (1) has escape pipe (13), and escape pipe (13) is communicated with combustion chamber (6), and an end of blast pipe (14) is communicated with escape pipe (13).

2, gas-fired furnace according to claim 1 is characterized in that, the outlet air end (20) of blast pipe (12) is positioned at more than the water surface of tank (11), below the furnace bottom (9).

3, gas-fired furnace according to claim 1 and 2 is characterized in that, tank (11) has an end height, the liquid outlet that the other end is low (15).

4, gas-fired furnace according to claim 3 is characterized in that, has water leg (16) between tank body (1) and the heat-insulation layer (2).