CN2307001Y - Lining continuous bulge multisectional choke type heating furnace - Google Patents
Lining continuous bulge multisectional choke type heating furnace Download PDFInfo
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- CN2307001Y CN2307001Y CN 97228351 CN97228351U CN2307001Y CN 2307001 Y CN2307001 Y CN 2307001Y CN 97228351 CN97228351 CN 97228351 CN 97228351 U CN97228351 U CN 97228351U CN 2307001 Y CN2307001 Y CN 2307001Y
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- furnace
- chokes
- wall
- burner hearth
- heating
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Abstract
The utility model relates to a lining continuous bulge multisectional choke type heating furnace which is used for heating steel billet (ingot). The heating furnace has a continuous multi-bulge multisectional choke type hearth structure on the lining of a hearth. Namely, a plurality of continuous spherical curved bulges 8 are arranged along the furnace length direction of the whole furnace from the furnace top and the lining of the furnace wall to the interior of the hearth, the furnace bottom is provided with a plurality of choke walls 7 made of bricks or poured by the castable refractory, and the furnace top is provided with a plurality of choke girders 6 poured by high temperature, high-strength castable refractory along the furnace length direction of the whole furnace. The heating furnace has high heating intensity, low fuel consumption, favorable environment protecting effect and long service life of a furnace body.
Description
The utility model relates to a kind of process furnace that heats steel billet and steel ingot.
Process furnace is the indispensable equipment of steel rolling process and Foundry Production, in (flame) process furnace, is that the flame that is produced with fuel combustion is that high-temperature furnace gas is a thermal source, and furnace charge is heated.This heat-processed is at flame, furnace wall and be heated in the triangular complicated heat exchange of furnace charge and finish.In heat exchanging process, flame is in the mode of radiation and convection current, a part of heat passed to is heated furnace charge and furnace wall, furnace wall again with radiation and reflection way with resulting heat, all spread out of and (be located under the steady state to burner hearth, there is not heat lost by radiation), from the heat of furnace wall, during by flame, a part is by flame absorption, the part that sees through, the heated furnace charge of directive itself again.After heated furnace charge obtained heat from flame and furnace wall, except that absorbing a part, rest part spread out of to burner hearth with radiation and reflection way again ...Final result: flame has been passed to heated furnace charge with the heat of oneself, reduced the temperature of self simultaneously, and furnace wall has just played middle heat transfer.In the heating production process, with the measure that improves the heat exchange condition, heat exchanging process is strengthened, this will bring a lot of benefits: furnace output is improved; The heat-transfer intensity of flame in stove increased, and this has just increased the thermograde of flame in stove, reduces the flue-gas temperature of coming out of the stove; Can make furnace charge heat more fully, improve heating quality.In a word, owing to strengthen many-sided benefit that heat exchange brings, reduction heating burnup that can both be direct or indirect.
The purpose of this utility model is to provide a kind of inwall multistage chokes formula process furnace of projection continuously, and the burner hearth of this process furnace is fully utilized, and (fierceness) strengthened in heat exchange in the burner hearth, the heating intensity height, and fuel consumption is low, and environment protecting is good and the burner hearth life-span is long.
The purpose of this utility model is achieved in that
Process furnace of the present utility model has the many continuously projectioies and the multistage chokes formula chamber structure of inboard wall of burner hearth.The continuous many bulge-structures of described inboard wall of burner hearth are along full stove furnace superintendent direction, and the structure formation of continuous a plurality of spherical curve shape projectioies is arranged on the inboard wall of burner hearth of furnace roof and furnace wall; Described multistage chokes formula chamber structure, be full stove furnace superintendent direction on the edge, be provided with brick or at furnace bottom, be provided with the integrated poured multiple tracks chokes beam of high-temp and high-strength refractory mould material, the corresponding dislocation of chokes beam with the chokes wall at furnace roof with the multiple tracks chokes wall of refractory castable cast.
Process furnace of the present utility model utilizes inboard wall of burner hearth how protruding continuously, increase the fender range of extension, flow with multistage chokes formula chamber structure control furnace gas, prolong the residence time of high-temperature furnace gas in stove, make the heat in the high-temperature furnace gas fully be heated the furnace charge absorption, thereby make the burner hearth heat exchange strengthen the heating intensity height, fuel consumption is low, and environment protecting is good and converter life is long.The utility model is applicable to the newly-built design of process furnace, also is applicable to the energy saving technical reconstruction of general process furnace.
Below in conjunction with accompanying drawing the utility model is described in detail:
Fig. 1 is that discharge method is the vertical profile synoptic diagram that brings out the utility model process furnace of material.
Fig. 2 is that discharge method is the vertical profile synoptic diagram of the utility model process furnace of side discharging.
Fig. 3 is that C among Fig. 1, Fig. 2 is to sectional view.
A represents the length of laying bricks of process furnace among the figure, and b represents the useful length of process furnace, and d-represents the burner hearth inner width, and 1-brings out material landslide, 2-tapping spout, 3-steel billet (ingot), 4-slideway (rail), 5-burner, 6-chokes beam, 7-chokes wall, 8-inboard wall of burner hearth be projection continuously, 9-pusher, 10-rollgang.
This process furnace has the many continuously projectioies and the multistage chokes formula chamber structure of inboard wall of burner hearth, continuous many projectioies of described inboard wall of burner hearth are full stove furnace superintendent direction on the edge, the projection 8 that continuous a plurality of spherical curve shapes are arranged on the inboard wall of burner hearth of furnace roof and furnace wall, be provided with multiple tracks chokes wall 7 brick or that pour into a mould with refractory castable at furnace bottom along full stove furnace superintendent direction, and be provided with the integrated poured multiple tracks chokes beam 6 of high-temp and high-strength refractory mould material at furnace roof along full stove furnace superintendent direction, chokes wall 7 is corresponding with 6 dislocation of chokes beam, chokes wall 7 has at least more than 1 road, and chokes beam 6 has at least more than 2 roads.
The utlity model has following advantage:
(1) optimization design of furnace type structure, increased the fender range of extension to a greater extent, strengthened the heat exchanging process of flame heating furnace, thereby increased flame being heated the hot strength of giving of furnace charge, can improve productivity of furnace 12-20%, reduce fuel consumption more than 20%.
(2) under the prerequisite that reduces (or not increasing) conventional design (or former stove) heat supplied, can keep high-temperature furnace gas to be full of burner hearth, make the heat in the high-temperature furnace gas fully be heated the furnace charge absorption, reduce the flue-gas temperature of coming out of the stove significantly, improve burner hearth thermo-efficiency.
(3) the utility model is applied to traveling-grate stoker combustion raw coal process furnace, can improve efficiency of combustion, realizes dedusting in stove, the energy-conservation and good (smoke stack emission dust≤150mg/Nm of environment protecting
3, reach national tourist city environmental regulations standard).
" State Economic and Trade Commission's 650 heater for rolling steel synthesis energy saving demonstration project model stoves " of the present utility model to use are example, and furnace fuel consumption is 27.38kg heavy oil/t steel (35.379kg marks coal/t steel), but the unit specific fuel consumption is 0.6089 * 10
6KJ/t steel, burner hearth thermo-efficiency are 60.60%, and the burning burn out rate is about 1%, and its main economic and technical indices all occupies leading domestic level, and has reached international advanced person and similar stove top standard.
The main technique flow process that this process furnace is applied to produce is as follows:
Earlier with the full steel billet (ingot) 3 of dress row on the stove inner slide 4, combustion air and fuel enter burner 5 burnings, make the protruding continuously multistage chokes formula burner hearth furnace temperature of inwall rise to temperature required, and heating steel billet (ingot) 3 is to the production specified temperature, to front slide, push fire door open and slip into the outer rollgang 10 of stove by the landslide by steel billet (ingot) 3 on slideway 4 for pusher 9 promotion steel billet (ingots) 3; As discharge method is the side discharging, after then steel billet (ingot) 3 slips into tapping spout, is released by kickoff mechanism, and above-mentioned action is carried out continuously, finishes the work of heating steel billet or steel ingot.
Claims (3)
1. the inwall multistage chokes formula process furnace of projection continuously, it is characterized in that described process furnace has the many continuously projectioies and the multistage chokes formula chamber structure of inboard wall of burner hearth, the continuous many projectioies of described inboard wall of burner hearth are full stove furnace superintendent directions on the edge, the projection (8) that continuous a plurality of spherical curve shapes are arranged on the inboard wall of burner hearth of furnace roof and furnace wall, described multistage chokes formula chamber structure is to be provided with brick or with the multistage chokes wall (7) of refractory castable cast at furnace bottom along full stove furnace superintendent direction, uses the integrated poured multiple tracks chokes beam (6) of high-temp and high-strength refractory mould material being provided with at furnace roof along full stove furnace superintendent direction.
2. process furnace as claimed in claim 1 is characterized in that said chokes wall (7) is corresponding with chokes beam (6) dislocation.
3. process furnace as claimed in claim 1 or 2 is characterized in that said chokes wall (7) has at least more than 1 road, and said chokes beam (6) has at least more than 2 roads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97228351 CN2307001Y (en) | 1997-10-09 | 1997-10-09 | Lining continuous bulge multisectional choke type heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97228351 CN2307001Y (en) | 1997-10-09 | 1997-10-09 | Lining continuous bulge multisectional choke type heating furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2307001Y true CN2307001Y (en) | 1999-02-10 |
Family
ID=33941529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97228351 Expired - Fee Related CN2307001Y (en) | 1997-10-09 | 1997-10-09 | Lining continuous bulge multisectional choke type heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2307001Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102226646A (en) * | 2011-03-29 | 2011-10-26 | 上海宝钢工业检测公司 | Hearth structure for improving heat exchange efficiency of flame-free heating section of industrial furnace |
| CN106122927A (en) * | 2016-06-24 | 2016-11-16 | 无锡锡能锅炉有限公司 | A kind of gas-steam boiler flue |
| CN112361820A (en) * | 2020-11-12 | 2021-02-12 | 江苏腾达环境工程有限公司 | Curved surface multi-angle radiation furnace roof structure |
-
1997
- 1997-10-09 CN CN 97228351 patent/CN2307001Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102226646A (en) * | 2011-03-29 | 2011-10-26 | 上海宝钢工业检测公司 | Hearth structure for improving heat exchange efficiency of flame-free heating section of industrial furnace |
| CN102226646B (en) * | 2011-03-29 | 2015-06-24 | 宝钢工业炉工程技术有限公司 | Hearth structure for improving heat exchange efficiency of flame-free heating section of industrial furnace |
| CN106122927A (en) * | 2016-06-24 | 2016-11-16 | 无锡锡能锅炉有限公司 | A kind of gas-steam boiler flue |
| CN112361820A (en) * | 2020-11-12 | 2021-02-12 | 江苏腾达环境工程有限公司 | Curved surface multi-angle radiation furnace roof structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |