CN2522418Y - Gas-sintering lime vertical kiln top - Google Patents
Gas-sintering lime vertical kiln top Download PDFInfo
- Publication number
- CN2522418Y CN2522418Y CN 00240417 CN00240417U CN2522418Y CN 2522418 Y CN2522418 Y CN 2522418Y CN 00240417 CN00240417 CN 00240417 CN 00240417 U CN00240417 U CN 00240417U CN 2522418 Y CN2522418 Y CN 2522418Y
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- prefabricated component
- furnace roof
- kiln
- prefabricated
- prefabricated parts
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Abstract
The utility model relates to a gas-sintering lime vertical kiln top; the whole top has a cone-type structure. The utility model is characterized in that the whole top is made by assembling a plurality of uniformly divided prefabricated parts; the top and bottom of the prefabricated parts have a fan-shaped columnar structure; bodies of the prefabricated parts are scallop shape; the middle part has a scale-exploring hole; the top (2) and the bottom (4) of the prefabricated parts are enclosed by a steel belt to form a reinforcing ring; thick gaps between the prefabricated parts are filled with a slightly expanding fireclay-resistant filling. The gas-sintering lime vertical kiln top with such a structure solves the problems of poor self-strength, excessively large dead weight, poor sealing effects and short service life of a whole cast-resin type kiln top; and the construction and maintenance are convenient.
Description
The utility model relates to a kind of lime shaft kiln furnace roof, especially gas combusting limestone kiln furnace roof.
With gas is the active lime shaft kiln of fuel (especially blast furnace gas), with its less investment, the construction period is short, good product quality, it is low that energy structure rationally reaches working cost, plurality of advantages such as reliable easy and simple to handle and being adopted by domestic increasing middle-size and small-size iron and steel enterprise.One of this kiln subject matter in operational process is that the kiln discharge spent air temperture is too high, and fluctuation is bigger, is everlasting between 300 ℃～650 ℃, thereby makes boiler roof sealing insulation difficulty, and equipment very easily damages.Continued to use the water-cooled furnace roof of solid fuel lime shaft kiln during the initial stage, the result is that energy loss is big, and water tank easily burns and leaks into kiln, not only increased meaningless heat energy loss, also too high, and increased the difficulty of dust separation system because of kiln gas moisture content, and it is big and frequent to repair the water tank difficulty; Then adopted the processing method of pouring heat resistance concrete in raw water box, do not re-used water-cooled, but watered layer, can peel off from level to level, made whole pouring layer come off at last into kiln because of the distortion of water tank bottom scaling loss.The life-span of this furnace roof is only in one, two year; Thereafter occurred integrated poured frustum formula furnace roof again, its weak point is: the one, and it is excessive that the deadweight of ambassador's furnace roof is crossed in materials consumption; The 2nd, adopt cast-in-site, throat platform because of working-yard height about 30m, be merely able to during cast-in-site under stove, mould material be mixed, little by little transport furnace roof then to, mould material moisture content scatters and disappears easily, it is too fast to harden, and each the reinforced layering that very easily forms pour mass, top construction intensity is produced have a strong impact on; The 3rd, it is excessive to water injection molding, general down about the 3M of garden, about last garden 1.2m, about high 1m, and be in the wooden internal mold of difficult support in the kiln, the general punching block that adopts, punching block very easily distortion of expanded by heating in use, scaling loss and crash in the kiln once fall into the thermal regulation of then seriously having destroyed the limestone kiln in the kiln, cause the processing unit accident, handle and have to stop production, and be difficult in kiln, go out clearly; The 4th, this furnace roof needs comparatively strict oven dry system as assurance, otherwise is easy to generate the oven dry crack and resistance to air loss is reduced greatly, and self structure intensity greatly reduces; The 5th, this furnace roof all belongs to disposable, promptly when the furnace lining overhaul of limestone kiln (being generally about 5 years), needs to remove and cast and remove difficulty and influence the overhaul duration again.
The purpose of this utility model provides a kind of simple in structure, light, firm, conveniently builds insulation and favorable sealing property, the lime shaft kiln furnace roof of 3～4 stove labour of sustainable use by laying bricks or stones.
For solving above-mentioned task, the technical scheme that adopts is: whole furnace roof is that circular cone is desk-top, by several five equilibriums, assembled by the prefabricated component that heat-stable material is made, prefabricated component is a sector structure, angle is 360 °/N (N is a prefabricated component piece number), prefabricated part body 3 is a scalloped shaped, be reserved with stock rod hole 1 in the middle of the prefabricated part body, top 2 and bottom 4 are fan-shaped columnar structure, prefabricated component top 2 and bottom 4 usefulness steel bands surround buckstay, same circle interface tightens up after utilizing bolt to connect, adopt little bloated refractory mortar filler affixed between the prefabricated component, the outside and the circumference between kiln shell of prefabricated component bottom 4 are evenly built 1～2 layer of permanent liner refractory brick by laying bricks or stones, make filler with pearlstone or blast furnace granulated slag between prefabricated part body shell and the kiln shell, add a cover the throat platform cover plate at last.
Adopt the lime shaft kiln furnace roof of said structure to have following advantage: owing to adopt prefabricated section, can effectively control the working accuracy of prefabricated component, avoid the mould material layering, improve top construction intensity, effectively control the furnace roof deadweight, prolong furnace roof work-ing life; Use the prefabricated component assembly unit, construction is built by laying bricks or stones convenient and swift; Employing microdilatancy refractory mortar is filled up the slit between the prefabricated section, can effectively utilize its performance of meeting hot microdilatancy, prefabricated component is mutually combined closely, stop flue gas and escape, simultaneously between furnace roof shell and kiln shell, fill up perlite or blast furnace granulated slag, play the effect of heat-insulation and heat-preservation.
Elaborate below in conjunction with the implementation process of accompanying drawing to these innovation and creation.
Fig. 1: the whole vertical view of furnace roof
Fig. 2: Fig. 1 is along A-A line sectional view
Fig. 3: prefabricated component vertical view
Fig. 4: Fig. 3 is along B-B line sectional view
With reference to Fig. 1-4, whole lime shaft kiln furnace roof is a frustum formula furnace roof, prefabricated component by 8 scalloped shaped is assembled, prefabricated component top 2 and bottom 4 are fan-shaped columnar structure, prefabricated part body 3 is a scalloped shaped, stock rod hole 1 is left in the centre, adopt little bloated refractory mortar filler between the prefabricated component, prefabricated component top 2 and bottom 4 usefulness steel bands surround buckstay, same circle interface tightens up after utilizing bolt to connect, the outward flange and the circumference between kiln shell of prefabricated component bottom 4 are evenly built the refractory brick that 1～2 layer of permanent liner used by laying bricks or stones, fill up pearlstone or blast furnace granulated slag at the position, space of prefabricated part body shell and kiln shell.
Above-mentioned frustum formula lime shaft kiln furnace roof also can be assembled by the prefabricated component of 6 scalloped shaped.
Claims (2)
1, a kind of round platform formula lime shaft kiln furnace roof of making by refractory materials, it is characterized in that: whole furnace roof is by some five equilibriums, assembled by the prefabricated component that refractory materials is made, prefabricated component is the scalloped shaped structure, angle is 360 °/N (N is a prefabricated component piece number), top (2) and bottom (4) are fan-shaped columnar structure, stock rod hole (1) is arranged in the middle of the prefabricated part body, prefabricated component top (2) and bottom (4) surround buckstay with steel band, same circle interface tightens up after utilizing bolt to connect, adopt little bloated refractory mortar filler packing slit between the prefabricated component, the outside and the circumference between kiln shell of prefabricated component bottom are evenly built 1～2 layer of permanent liner refractory brick by laying bricks or stones, make filler with expanded pearlite shell or blast furnace granulated slag between prefabricated part body shell and the kiln shell.
2, lime shaft kiln furnace roof as claimed in claim 1 is characterized by: whole furnace roof is assembled by 6-8 piece scalloped shaped prefabricated component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00240417 CN2522418Y (en) | 2000-12-11 | 2000-12-11 | Gas-sintering lime vertical kiln top |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00240417 CN2522418Y (en) | 2000-12-11 | 2000-12-11 | Gas-sintering lime vertical kiln top |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2522418Y true CN2522418Y (en) | 2002-11-27 |
Family
ID=33601060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00240417 Expired - Lifetime CN2522418Y (en) | 2000-12-11 | 2000-12-11 | Gas-sintering lime vertical kiln top |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2522418Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104120217A (en) * | 2014-07-10 | 2014-10-29 | 中石化南京工程有限公司 | Assembly type thermal treatment heating furnace and constructing method thereof |
| CN107702532A (en) * | 2017-06-28 | 2018-02-16 | 长兴鑫迪耐火材料厂 | A kind of electric kiln that oxidation atmosphere is provided |
| CN110642541A (en) * | 2019-06-29 | 2020-01-03 | 广东韶钢松山股份有限公司 | Furnace top sealing device and process for gas-fired lime shaft kiln |
| CN113405364A (en) * | 2021-06-28 | 2021-09-17 | 广东韶钢松山股份有限公司 | Kiln top structure of gas-fired lime shaft kiln and construction method thereof |
-
2000
- 2000-12-11 CN CN 00240417 patent/CN2522418Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104120217A (en) * | 2014-07-10 | 2014-10-29 | 中石化南京工程有限公司 | Assembly type thermal treatment heating furnace and constructing method thereof |
| CN104120217B (en) * | 2014-07-10 | 2017-05-10 | 中石化南京工程有限公司 | Assembly type thermal treatment heating furnace and constructing method thereof |
| CN107702532A (en) * | 2017-06-28 | 2018-02-16 | 长兴鑫迪耐火材料厂 | A kind of electric kiln that oxidation atmosphere is provided |
| CN107702532B (en) * | 2017-06-28 | 2024-06-11 | 山东沂康材料科技有限公司 | Electric kiln for providing oxidizing atmosphere |
| CN110642541A (en) * | 2019-06-29 | 2020-01-03 | 广东韶钢松山股份有限公司 | Furnace top sealing device and process for gas-fired lime shaft kiln |
| CN113405364A (en) * | 2021-06-28 | 2021-09-17 | 广东韶钢松山股份有限公司 | Kiln top structure of gas-fired lime shaft kiln and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20101211 Granted publication date: 20021127 |