CN2410303Y - Multichamber continuous annealing furnace - Google Patents

Multichamber continuous annealing furnace Download PDF

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Publication number
CN2410303Y
CN2410303Y CN 00205096 CN00205096U CN2410303Y CN 2410303 Y CN2410303 Y CN 2410303Y CN 00205096 CN00205096 CN 00205096 CN 00205096 U CN00205096 U CN 00205096U CN 2410303 Y CN2410303 Y CN 2410303Y
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China
Prior art keywords
furnace chamber
chamber
flue
preheating
heating furnace
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Expired - Fee Related
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CN 00205096
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Chinese (zh)
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彭景尧
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彭景尧
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Abstract

The utility model relates to a multichamber continuous annealing furnace, which comprises a preheating furnace chamber, a reheating furnace chamber, a heat uniform furnace chamber and a combustion chamber. The furnace chambers are mutually separated. A smoke channel of the reheating furnace chamber is communicated with the preheating furnace chamber, and a smoke exhaust port is communicated with a chimney. Each functional furnace chamber in the utility model is always in a technological state. The utility model has the advantages of good technological controllability, low consumed energy, conspicuous yield increasing effect, conspicuous energy-saving effect, etc. The utility model is especially suitable for annealing furnaces which are used as the metalworking industries of wires, strips, etc.

Description

Multi-chamber continuous annealing furnace
The utility model relates to a kind of annealing furnace of industry annealing stove, particularly a kind of many furnace chambers, belongs to thermal treatment industrial furnace technical field.
Annealing furnace is a kind of common used in industry stove, because the annealing process required time is longer, so this class industrial furnace is a kind of higher device that consumes energy.Advanced annealing furnace adopts the high-grade lagging material to build stove, and controls with computer, though this annealing furnace unit consumption of energy has obvious decline, and the cost height, the operational requirement strictness generally only is used for the higher production line of working continuously of level.The used annealing furnace of domestic a large amount of medium and small-scale materials processing is continued to use traditional upper-opening or tunnel like stove always, and these annealing stove power consumptions are high, and technology controlling and process is difficulty, and also there is the uneven defective of heating in many stoves, influence quality product.
The purpose of this utility model is to provide a kind of annealing stove that consumes energy low, that technology controlling and process is stable, particularly a kind of multi-chamber continuous annealing furnace that is applicable to that metal-processing industries such as wire rod and band use.
The purpose of this utility model is achieved in that
A kind of multi-chamber continuous annealing furnace, it comprises preheating furnace chamber, heating furnace chamber, uniform heating furnace chamber and combustion chamber, and each furnace chamber is isolated mutually, and the flue of heating furnace chamber is communicated with the preheating furnace chamber, and the smoke outlet of preheating furnace chamber is communicated with chimney.
A kind of structural shape of realizing such scheme is, described preheating furnace chamber, heating furnace chamber and uniform heating furnace chamber are vertical upper-opening furnace chamber, build in the disjunctor stove, the heating furnace chamber is lower than preheating and uniform heating furnace chamber, the process furnace cavity wall is a tracery wall, quirk in tracery wall and the wall is communicated with, and the smoke outlet on the annular flue on tracery wall top is communicated with the preheating furnace chamber through upright flue, and the combustion chamber is positioned at heats under the furnace chamber.
Above-mentioned annealing furnace, described heating furnace chamber tracery wall bottom is provided with overfiren air port, and described upright flue top is provided with secondary air chamber, the secondary air chamber bottom surface eye of wind that gathers, the secondary air duct on overfiren air port and secondary air chamber and the disjunctor stove leads to.
Above-mentioned annealing furnace, the quantity of smoke outlet is a plurality of and differs in size on the smoke outlet of described preheating furnace chamber and the annular flue, near little, big away from flue of flue.
Above-mentioned annealing furnace, described disjunctor stove is provided with the waste heat recovery jar outward in addition, and the tubular tube-bundle heat exchanger is housed in it, consistent with each furnace chamber of disjunctor stove of the internal diameter of tubular tube bundle heat exchanger and height, its bottom is provided with exhaust fan.
Realize that another structural shape of the present utility model is, described preheating furnace chamber, heating furnace chamber, uniform heating furnace chamber are horizontal tunnel furnace chamber, the preheating furnace chamber is positioned at heating furnace chamber one end, middle with the lock gate hatch isolation, the uniform heating furnace chamber is positioned at the heating furnace chamber the other end, and the centre also isolates with lock gate hatch, inwall one side of heating furnace chamber is a tracery wall, tracery wall is communicated with the wall internal-quirk, and opposite side is provided with flue, and flue is communicated with the preheating furnace chamber.
Above-mentioned annealing furnace is set up 2 auxiliary smoke outlets in described tracery wall bottom, and this smoke outlet is communicated with the preheating furnace chamber through auxiliary flue.
Above-mentioned annealing furnace, described gate are wedge shape.
The utility model compared with prior art has the following advantages:
1. adopt the three phases of technique scheme post anneal, it is preheating, heating, even heat is carried out in three different chambers, each function chamber is separate, so with regard to each function chamber, operation is in a kind of state of the art all the time, consequently in the furnace binding design, syndeton between the structure of each function chamber and each chamber can reasonably design arrangement, for example, heating higher lagging material of the optional usefulness of furnace chamber and thicker thermal insulation layer, and on structure design, take the various thermal radiation that help reducing, make sufficient combustion, the special measure of homogeneous heating; The uniform heating furnace chamber then can be selected common material for use, and structure is also simple relatively, and this is for reducing power consumption, improve the quality of stove and significant effect being arranged work-ing life;
2. after the employing technique scheme, because each function furnace chamber is in a kind of technological operation state all the time, total system is in a kind of lasting, stable slave mode easily, so its technology controlling and process is good, annealing quality can be guaranteed and have tangible rising, for example, after the annealing of the existing annealing of use stove, the tensile strength error of material is generally at 6-10KG/CM 2, and after using the utility model annealing, the tensile strength error of material only is 0.4KG/CM 2About;
3. the Increasing Production and Energy Saving effect is remarkable.According to existing<stove design〉record, the average energy consumption of national heat treatment furnace is mark coal 440KG/ ton steel, and the utility model power consumption can reach about mark coal 40KG/ ton steel, and it is original 1/10 that power consumption is about, and building on an equal basis under the fire bars spare, and production efficiency improves 3-4 doubly;
4. preheating furnace chamber in the utility model and upright flue and since flue dust when flowing through flow velocity descend, so be equivalent to set up the depositing dust link, the over-emitting black exhaust phenomenon can be further eliminated or be stopped in combustion-supporting effect such as secondary air in addition in the use, have positive environment protecting;
5. the waste heat recovery jar set up of the utility model can reclaim former depleted waste heat, and the heat energy of recovery can be production workshop section heating and health hot water are provided, and can replace former heating boiler not increasing under the energy consumption situation, has realized the utilization once more to the energy.
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is a vertical upper-opening structural representation in the utility model;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the outside view of Fig. 1;
Fig. 4 is a waste heat recovery jar structure synoptic diagram;
Fig. 5 is a horizontal tunnel like vertical view in the utility model;
Fig. 6 is the A-A sectional view of Fig. 5;
Fig. 7 is the C-C sectional view of Fig. 6;
Fig. 8 is the B-B sectional view of Fig. 6;
Fig. 9 is the D-D sectional view of Fig. 6.
Consult Fig. 1-4.Annealing furnace shown in the figure comprises preheating furnace chamber 1, heating furnace chamber 2, uniform heating furnace chamber 3, combustion chamber 4, chimney 5, preheating, heating, uniform heating furnace chamber are end to end, constitute the stove of a disjunctor, the inwall of heating furnace chamber is a tracery wall 6, quirk 7 is around tracery wall, the combustion chamber be located at the heating furnace chamber under, high-temperature flue gas directly upwards enters quirk by the combustion chamber, the coal filling hole of combustion chamber and blast inlet are equipped with airtight bell door 39,40.
One characteristics of above-mentioned vertical upper-opening stove are, the diameter unanimity in heating, preheating, uniform heating furnace chamber, but highly do not wait, preheating is consistent with the height in uniform heating furnace chamber, and the heating furnace chamber then is lower than the two, after the heating furnace chamber reduces, can increase the thickness of furnace top insulation layer, prevent thermal radiation and diffusion, can increase the height potential difference of itself and preheating furnace chamber in addition, dwindle the height of upright flue, make smoke evacuation more unobstructed.
Another characteristics of above-mentioned vertical upper-opening stove are, flue is made up of annular flue 8 and upright flue 10, the annular flue is sealed on the quirk, the external diameter of its external diameter and quirk wall is isometrical, do not lean out the quirk wall, a plurality of smoke outlets 9 are communicated with annular flue, upright flue is between heating and preheating furnace chamber, its top is communicated with annular flue, the bottom of preheating furnace chamber is directly led in its bottom, this kind design, and the laminar flow flow resistance in the flue is found in the flow area, the minimizing that are easy to increase upright flue, and make flue gas directly pounce on the bottom of batch can in the preheating chamber, make the rapid preheating of batch can; Also very convenient in addition annular flue top and outside insulation reduce thermodiffusion.
Above-mentioned vertical upper-opening stove also has characteristics to be, be provided with overfiren air port 11 in heating furnace chamber tracery wall bottom, be provided with secondary air chamber 12 at upright flue top, overfiren air port is located on each pinkeye of tracery wall bottom, secondary air chamber is located at the top of upright flue, the densely covered eye of wind 13 on the air compartment bottom surface, secondary air can be entered in the upright flue by the eye of wind.Overfiren air port and secondary air chamber all are communicated with secondary air duct 14 on the disjunctor stove among Fig. 3, and blower fan 15 is housed on the secondary air duct.After overfiren air port is set up in the tracery wall bottom, fugitive constituent and coal dust particulate are fully burnt, reduce black smoke, and can strengthen flowing of tracery wall bottom high-temperature zone flue gas, make homogeneous heating, this helps prolonging the work-ing life of tank body in body of heater and the stove, reduces the tensile strength deviation of annealed material, improves the anneal quality; After setting up secondary air chamber on the upright flue, except can make fugitive constituent residual in the flue gas and coal dust particulate obtain again combustion-supporting, the deficiency of air output in the time of also can remedying tracery wall bottom overfiren air port and sintering occurs and stop up.
Characteristics again of above-mentioned vertical upper-opening stove are that a plurality of smoke outlets 9 on heating furnace chamber tracery wall top, a plurality of smoke outlets 16 on preheating furnace chamber top differ in size, and are less near the smoke outlet at upright flue place in a plurality of smoke outlets 9, bigger away from the smoke outlet of upright flue; In the smoke outlet 16, less near the smoke outlet of smoke-uptake 38, away from then bigger, adopt this kind setting, the distribution of hot-fluid and the flow direction, flow velocity make heat energy uniform distribution, stable technical process in may command heating and the preheating furnace chamber, quality product is guaranteed and improves.
Consult Fig. 4, waste heat recovery jar 17 shown in the figure, tank skin is a heat-preserving wall, tube-bundle heat exchanger 18 upper and lowers of tubular are provided with inlet tube and outlet tube, the exhaust fan 19 of bottom is used to quicken flowing of hot-fluid, heat exchanger also can adopt other form, and the visual demand of the quantity of waste heat recovery jar is provided with 1-3.
Fig. 5-the 9th, an example structure synoptic diagram of horizontal tunnel furnace chamber is adopted in heating in the utility model, preheating, uniform heating furnace chamber.Annealing furnace shown in the figure comprises preheating furnace chamber 20, heating furnace chamber 21, uniform heating furnace chamber 22, combustion chamber 23, chimney 24, preheating, heating, uniform heating furnace chamber are end to end, lay in the tunnel that is communicated with and walk crosswise guide rail 30, chassis 31 moves walking crosswise on the guide rail, walk crosswise the guide rail two ends and be provided with the stringer guide rail, the stringer guide rail is provided with the stringer dolly, the stringer dolly be provided with stove in walk crosswise the traverse rod that track joins, be used to make the chassis transition, the stringer dolly is by the traction of stringer hoisting machine, and chassis is by walking crosswise the hoisting machine traction.Combustion chamber one side has air-blast device 32, and the end in preheating furnace chamber and uniform heating furnace chamber is provided with the fire door 33 that can promote.Mainly be with the difference of conventional tunnel stove, respectively be provided with the lock gate hatch 25 that can promote between shown heating furnace chamber and preheating furnace chamber and the uniform heating furnace chamber, each function furnace chamber is divided into independently furnace chamber.Lock gate hatch is a wedge shape, adopts hoisting type to open, and portalframe and volume poplar device can be finished the keying of lock gate hatch and fire door.The upper and lower end of lock gate hatch is provided with down groove 34, and body of heater and chassis are provided with the husky groove 35 of envelope, and the groove that falls when lock gate hatch falls just in time drops in the husky groove of envelope, forms good sealing.Be provided with quirk 26 in the partition wall between heating furnace chamber and the combustion chamber, quirk is communicated with the heating furnace chamber through tracery wall 27, and the smoke outlet 28 of heating furnace chamber opposite side is communicated with chimney through flue 29.
Heating furnace chamber tracery wall below is the hot-fluid dead band near two zones of lock gate hatch.For eliminating this dead band, 2 auxiliary smoke outlets 36 are set up in tracery wall bottom at the position, dead band in the present embodiment, be communicated with the preheating furnace chamber through auxiliary flue 37, a part of high-temperature flue gas that heats furnace chamber inside this auxiliary flue of flowing through is given off, thereby reach the purpose of homogeneous heating.
When processed workpiece was finished this section annealing operation in furnace chamber of living in after, fire door and lock gate hatch rose, and walk crosswise the hoisting machine structure with the traversing station of chassis, close fire door and lock gate hatch then rapidly, the operation of an open type new round.Pull out the outer workpiece of stove and treat the air cooling end-dump car, pending workpiece is loaded onto empty chassis, waits for new round operation.

Claims (8)

1. a multi-chamber continuous annealing furnace is characterized in that, it comprises preheating furnace chamber, heating furnace chamber, uniform heating furnace chamber and combustion chamber, and each furnace chamber is isolated mutually, and the flue of heating furnace chamber is communicated with the preheating furnace chamber, and the smoke outlet of preheating furnace chamber is communicated with chimney.
2. annealing furnace according to claim 1, it is characterized in that, described preheating furnace chamber, heating furnace chamber and uniform heating furnace chamber are vertical upper-opening furnace chamber, build in the disjunctor stove, the heating furnace chamber is lower than preheating and uniform heating furnace chamber, and the process furnace cavity wall is a tracery wall, and the interior quirk of tracery wall and wall is communicated with, smoke outlet on the tracery wall upper, annular flue is communicated with the preheating furnace chamber through upright flue, and the combustion chamber is positioned under the heating furnace chamber.
3. annealing furnace according to claim 2, it is characterized in that described heating furnace chamber tracery wall bottom is provided with overfiren air port, described upright flue top is provided with secondary air chamber, the secondary air chamber bottom surface eye of wind that gathers, overfiren air port and secondary air chamber are communicated with secondary air duct on the disjunctor stove.
4. annealing furnace according to claim 3 is characterized in that, the quantity of described preheating furnace chamber smoke outlet and annular flue smoke outlet is a plurality of and differs in size, near little, big away from flue of flue.
5. annealing furnace according to claim 4 is characterized in that, described disjunctor stove is provided with the waste heat recovery jar outward in addition, and the tubular tube-bundle heat exchanger is housed in it, and the internal diameter of tubular tube bundle heat exchanger is consistent with each furnace chamber with height, and its bottom is provided with exhaust fan
6. annealing furnace according to claim 1, it is characterized in that, described preheating furnace chamber, heating furnace chamber, uniform heating furnace chamber are horizontal tunnel furnace chamber, and the preheating furnace chamber is positioned at heating furnace chamber one end, and the centre isolates with lock gate hatch, the uniform heating furnace chamber is positioned at the heating furnace chamber the other end, the centre also isolates with lock gate hatch, and inwall one side of heating furnace chamber is a tracery wall, and tracery wall is communicated with the wall internal-quirk, opposite side is provided with flue, and flue is communicated with the preheating furnace chamber.
7. annealing furnace according to claim 6 is characterized in that, sets up 2 auxiliary smoke outlets in described tracery wall bottom, and this smoke outlet is communicated with the preheating furnace chamber through auxiliary flue.
8. annealing furnace according to claim 7 is characterized in that, described gate is a wedge shape.
CN 00205096 2000-03-15 2000-03-15 Multichamber continuous annealing furnace Expired - Fee Related CN2410303Y (en)

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Application Number Priority Date Filing Date Title
CN 00205096 CN2410303Y (en) 2000-03-15 2000-03-15 Multichamber continuous annealing furnace

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Application Number Priority Date Filing Date Title
CN 00205096 CN2410303Y (en) 2000-03-15 2000-03-15 Multichamber continuous annealing furnace

Publications (1)

Publication Number Publication Date
CN2410303Y true CN2410303Y (en) 2000-12-13

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CN 00205096 Expired - Fee Related CN2410303Y (en) 2000-03-15 2000-03-15 Multichamber continuous annealing furnace

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1303227C (en) * 2005-06-30 2007-03-07 上海交通大学 Work piece sealing transfer device of vertical heating treatment production line
CN1303226C (en) * 2005-06-30 2007-03-07 上海交通大学 Pit heating furnace cover for implementing sealing state work piece transfer
CN104046755A (en) * 2014-06-23 2014-09-17 江苏华烨炉业有限公司 Natural gas tunnel heating furnace
CN104451044A (en) * 2014-12-31 2015-03-25 湖南顶立科技有限公司 Vacuum quenching method
CN105004191A (en) * 2015-07-27 2015-10-28 浙江尚鼎工业炉有限公司 Box-type fuel gas thermal treatment furnace

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1303227C (en) * 2005-06-30 2007-03-07 上海交通大学 Work piece sealing transfer device of vertical heating treatment production line
CN1303226C (en) * 2005-06-30 2007-03-07 上海交通大学 Pit heating furnace cover for implementing sealing state work piece transfer
CN104046755A (en) * 2014-06-23 2014-09-17 江苏华烨炉业有限公司 Natural gas tunnel heating furnace
CN104451044A (en) * 2014-12-31 2015-03-25 湖南顶立科技有限公司 Vacuum quenching method
CN105004191A (en) * 2015-07-27 2015-10-28 浙江尚鼎工业炉有限公司 Box-type fuel gas thermal treatment furnace
CN105004191B (en) * 2015-07-27 2017-07-18 浙江尚鼎工业炉有限公司 A kind of box type gas heat-treatment furnace

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CF01 Termination of patent right due to non-payment of annual fee
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