CN2745012Y - Heat accumulation type calcinations vertical kiln - Google Patents
Heat accumulation type calcinations vertical kiln Download PDFInfo
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- CN2745012Y CN2745012Y CN 200420115128 CN200420115128U CN2745012Y CN 2745012 Y CN2745012 Y CN 2745012Y CN 200420115128 CN200420115128 CN 200420115128 CN 200420115128 U CN200420115128 U CN 200420115128U CN 2745012 Y CN2745012 Y CN 2745012Y
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- kiln
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- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
The utility model provides a heat accumulation type calcinations vertical kiln, which is composed of two vertical kiln chambers provided side by side. The cross-section of the kiln chamber is designed into the oval or the oblateness; the kiln chambers are communicated by a path; the path is provided between the stub axles of the kiln chambers, and is positioned on the middle-lower part of the kiln; burner spray pipes are uniformly arranged in the kiln chamber; the top part of the kiln chamber is respectively provided with a feed inlet, an air inlet and an air outlet; the bottom part of the kiln chamber is respectively provided with a feed outlet and an air inlet. The kiln chamber of the utility model is designed for the oval or the oblateness so that the major sectional area of the kiln chamber can be obtained to improve the production rate of the vertical kiln; the path for the flowing of the air current is formed on the stub axle direction of the kiln chamber; the bias current of the air current is smaller; the heat transmission is uniform; the dead corner does not exist in the calcination; the path blockage phenomenon does not exist; the calcination environment is effectively ameliorated. Adopting the structure improves the production rate of the vertical kiln as well as improves the production quality.
Description
Technical field
The utility model belongs to regenerative furnace, is specifically related to a kind of heat accumulating type calcining vertical kiln of calcining lumpy bulk material.
Background technology
From the shaft furnace of existing heat storage type combustion lumpy bulk material, the cross section of kiln thorax mainly contains following several: the one, and square; The 2nd, circular; The 3rd, semicircular.More than the deficiency that exists of three kinds of kiln thorax shapes have:
The kiln of square-section is only limited to the lower situation of output, and this is that the long limit of square-section can not excessively be caused with the ratio of minor face owing to structural restriction.If the output of kiln improves, must increase long limit and minor face simultaneously, with the increase of realization calcining area, thus the raising of realization output, from experience is arranged, in this case, the air-flow bias current is excessive, causes the quality of calcined product to reduce.
The round kiln tube forms ambient by the periphery in kiln thorax cross section, and flue gas is discharged by the circular passage, thereby realizes the uniformity that air-flow distributes, but there is susceptible to plugging defective in passage.
The shaft furnace in semicircle kiln thorax cross section, its passage that connects two kiln thoraxes is arranged on the whole diameter, so still has air-flow situation pockety on the structure, also is restricted so its single kiln maximum production improves, promptly improve the output of single seat kiln, its product quality will descend.
Summary of the invention
The technical problem that the utility model mainly solves is: the New Regenerative that a kind of air-flow is evenly distributed, burning quality is good, output is high calcining vertical kiln is provided, when guaranteeing calcination product quality and output, can effectively eliminate the clogging of passage, thus the low investment and the less trouble of the equipment of realization.
The utility model heat accumulating type calcining vertical kiln is made up of two vertical furnace thoraxes that are arranged side by side, and kiln thorax cross section is designed to ellipse or oblateness, and two kiln thoraxes are by channel connection, and passage is arranged between the minor axis of kiln thorax, and is positioned at the kiln middle and lower part; Combustor nozzle evenly is set in the kiln thorax; At each kiln thorax top at least one charge door is set, corresponding with it kiln thorax bottom is provided with at least one discharging opening; Be respectively equipped with air inlet and the exhaust outlet that links to each other with air-introduced machine with air blast at the kiln top, be respectively equipped with the air inlet that links to each other with air blast in the kiln bottom.
After the utility model kiln thorax transform ellipse or oblate structure as, the major axis on the cross section can suitably strengthen with the ratio of minor axis, but its kiln body structure intensity is still highly stable.Because long axis direction is longer, can obtain bigger kiln thorax sectional area, to improve shaft furnace output; At the passage of short-axis direction formation airflow, the bias current of air current flow is less like this, and evenly there is not the dead angle in the heat transmission in the calcining, do not have the passage clogging, has effectively improved calcination environment.Adopt this structure, when improving shaft furnace output, product quality also is significantly improved.
Description of drawings
Fig. 1 is a heat accumulating type calcining vertical kiln structural representation;
Fig. 2 is the cross-sectional view of Fig. 1.
Wherein: 1, kiln tube 2, kiln tube 3, passage 4, ore 5, combustor nozzle 6, air blast 7, air blast 8, air-introduced machine
The specific embodiment
The utility model belongs to the regeneration calciner plant, as shown in Figure 1, the heat accumulating type calcining vertical kiln is formed kiln tube cross section ovalize by upright kiln tube 1 and kiln tube 2 arranged side by side, the bottom that 5, two kiln tubes of combustor nozzle evenly are set in the oval kiln thorax connects by passage 3.For the kiln thorax of realizing elliptic cross-section can be smoothly cloth uniformly, be provided with one or two charge door at each kiln thorax top, be provided with one or two discharging opening in the bottom of kiln thorax.
As shown in Figure 2, passage is arranged between the minor axis of two oval kiln tubes, substantially kiln thorax cross section is communicated with, and channel roof adopts hangs the prefabricated section structure.
During production, lump ore stone 4 is sent into the kiln thorax from the top of each kiln tube, discharges from kiln thorax discharging opening through the product after the calcining.The fuel that calcining materials is used is to be supplied with by the Fuel lance that is evenly distributed on the whole elliptic cross-section, and fuel is imported in the kiln tube by combustor nozzle 5 with certain pressure.For fixed combustion device jet pipe, on kiln thorax top steel construction is installed, combustor nozzle is fixed on the steel construction.
Burning material required combustion air blasts the kiln body by air blast 6 from kiln thorax top air inlet, and combustion air passes material bed flowing downward, with fuel in the mixed combustion of the bottom of combustor nozzle, realize calcining to material.Material is subjected in the cooling zone being cooled off by the cooling air that air blast 7 is sent into through air inlet through flowing downward after calcining through the cooling zone of kiln body bottom, discharges through the bottom discharge mouth then.Evenly there is not the dead angle in the heat transmission in the calcination process, and calcining and pre-heat effect are good.
In kiln tube 1 calcination process, do not send into fuel and combustion air in the kiln tube 2, the flue gas that 1 calcining of kiln tube produces enters kiln tube 2 through passage 3, and the lump material in the kiln tube 24 is carried out preheating.The flue gas that produces in the kiln tube is to discharge from exhaust outlet by air-introduced machine 8.Two kiln tubes like this are alternately running periodically, and alternately the time decides on the material calcining required time.
Condition and calcining requirement according to material are provided with suitable kiln body preheating zone, calcining zone and cooling zone, and the preheating zone begins to end to the bottom of burning jet pipe 5 from kiln thorax top charging line; Combustion zone spontaneous combustion jet pipe 5 bottoms begin to end to the interface channel place; The cooling zone is that interface channel begins till the discharging opening of bottom.
According to design concept of the present utility model, kiln thorax cross section is designed to oblateness, can reach the nonclogging effect of passage equally.
Claims (2)
1, a kind of heat accumulating type calcining vertical kiln is made up of two vertical furnace thoraxes that are arranged side by side, and it is characterized in that kiln thorax cross section is designed to ellipse or oblateness, and two kiln thoraxes are by channel connection, and passage is arranged between the minor axis of kiln thorax, and is positioned at the kiln middle and lower part; Combustor nozzle evenly is set in the kiln thorax; At each kiln thorax top at least one charge door is set, corresponding with it kiln thorax bottom is provided with at least one discharging opening; Be respectively equipped with air inlet and the exhaust outlet that links to each other with air-introduced machine with air blast at the kiln top, be respectively equipped with the air inlet that links to each other with air blast in the kiln bottom.
2, heat accumulating type calcining vertical kiln according to claim 1 is characterized in that above-mentioned channel roof adopts to hang the prefabricated section structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420115128 CN2745012Y (en) | 2004-11-04 | 2004-11-04 | Heat accumulation type calcinations vertical kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420115128 CN2745012Y (en) | 2004-11-04 | 2004-11-04 | Heat accumulation type calcinations vertical kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2745012Y true CN2745012Y (en) | 2005-12-07 |
Family
ID=35579791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420115128 Expired - Fee Related CN2745012Y (en) | 2004-11-04 | 2004-11-04 | Heat accumulation type calcinations vertical kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2745012Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104864707A (en) * | 2014-12-19 | 2015-08-26 | 武汉艾蒙窑炉技术有限公司 | Shaft kiln for calcining loose materials |
| CN110818289A (en) * | 2019-12-13 | 2020-02-21 | 中冶京诚工程技术有限公司 | Three-chamber shaft kiln and calcination method |
| CN113955956A (en) * | 2021-11-30 | 2022-01-21 | 中冶京诚工程技术有限公司 | Double-chamber heat accumulating type lime kiln |
| CN114231679A (en) * | 2022-01-04 | 2022-03-25 | 中冶华天工程技术有限公司 | Flat oversize blast furnace |
-
2004
- 2004-11-04 CN CN 200420115128 patent/CN2745012Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104864707A (en) * | 2014-12-19 | 2015-08-26 | 武汉艾蒙窑炉技术有限公司 | Shaft kiln for calcining loose materials |
| CN110818289A (en) * | 2019-12-13 | 2020-02-21 | 中冶京诚工程技术有限公司 | Three-chamber shaft kiln and calcination method |
| CN113955956A (en) * | 2021-11-30 | 2022-01-21 | 中冶京诚工程技术有限公司 | Double-chamber heat accumulating type lime kiln |
| CN114231679A (en) * | 2022-01-04 | 2022-03-25 | 中冶华天工程技术有限公司 | Flat oversize blast furnace |
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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 |