CN2454740Y - Fluidized-cement vertical kiln - Google Patents
Fluidized-cement vertical kiln Download PDFInfo
- Publication number
- CN2454740Y CN2454740Y CN 00257001 CN00257001U CN2454740Y CN 2454740 Y CN2454740 Y CN 2454740Y CN 00257001 CN00257001 CN 00257001 CN 00257001 U CN00257001 U CN 00257001U CN 2454740 Y CN2454740 Y CN 2454740Y
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- CN
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- inwall
- kiln
- fluidized
- bed
- kiln body
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- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The utility model provides a fluidized-cement vertical kiln which comprises a kiln body, a chimney at the upper part of the kiln body, a hopper, a discharger at the lower part of the hopper and a wind pipe. The utility model is characterized in that an inner cavity of the kiln body is provided with an inner wall. The bottom part of the inner wall is provided with a trapezoidal and conical cavity which is formed in a wrapping mode by the inner wall. The inner wall above the conical cavity is formed into a columnar inner cavity. The top part of the inner wall, which is positioned below the chimney, is provided with a spherical ceiling of the inner wall. The lower surface of the spherical ceiling of the inner wall is connected with a fluidized bed with big grate holes. A roasting cavity is arranged among the spherical ceiling of the inner wall, the fluidized bed with big grate holes and the kiln body. A reciprocating feeder is arranged at the bottom part of the fluidized bed with big grate holes below the roasting cavity.
Description
The utility model relates to the equipment of cement industry raw material calcining, especially a kind of fluidization cement in vertical kiln.
In the prior art, being used for the kiln of cement slurry calcining a kind of is rotary kiln, and the maximum mechanized cement shaft kiln comparatively generally of another kind of application, mechanized cement shaft kiln is the vertical mobile kiln that adopts accumulation formula calcining manners, because it has operating procedure and device structure is simple, volume is little, small investment and the advantage such as fast of founding the factory, and is widely adopted, and has formed the characteristic of China's cement industry.Because what shaft kiln adopted is to have preheating, decompose, burn till and cool off the characteristics that roll into one, formed the advantage that it had, but also these characteristics make it have inevitable defective again just, be in operation exactly, because resistance is inhomogeneous and ventilate inhomogeneous, make bed of material internal combustion, conduct heat, material falls inhomogeneous, can't form the orderly and stable environment that burns till, cause shaft kiln in calcination process, it is poor that the middle part ventilates, fire in a stove before fuel is added instability, inclined to one side windage yaw fire, the refining limit, the card kiln, intersect problems such as multifuel combustion and grog cool time be long, the clinker quality that shaft kiln is become burn till is poor, yield poorly and the serious kiln of dust discharge.
The purpose of this utility model, be exactly at the existing in prior technology deficiency, and provide a kind of fluidization cement in vertical kiln technical scheme, this scheme has adopted the advantage of mechanized cement shaft kiln, and in kiln, use big comb hole fluidized-bed at its defective, the decomposition roasting of pellet is separated with the process of fluidized calcination ripe material under high-temperature calcination district fluidized state, make material in kiln, form preheating, burning till and cool off can orderly by different level carrying out, changed accumulation formula calcining manners, so improved the even distribution of wind in kiln, realize quick roasting, calcining and cooling fast, reduce the time of staying of pellet in kiln, reduced hear rate, output and quality have been improved, and reduced that the content of dust has met environmental protection requirement in the waste gas, make shaft kiln really become high-quality, efficiently, energy-conservation, the novel kiln of environmental protection is particularly suitable for the transformation to existing traditional machine shaft kiln.
This programme is realized by following technical measures.Mainly include the chimney on kiln body and kiln body top, the cooling chamber of hopper and kiln body bottom, discharger and airduct, the characteristics of this programme are at described kiln intracoelomic cavity inwall to be arranged, the trapezoidal cone shaped body of circular cone that is surrounded by inwall is arranged in the bottom of inwall, what the inwall on cone shaped body top surrounded is cylindrical cavity, the top of inwall be positioned at chimney below inwall sphere top is arranged, below inwall sphere top, be connected with the big comb in big comb hole hole fluidized-bed is arranged on the sidewall, on inwall sphere top with comb greatly and between hole fluidized-bed and the kiln body baking cavity is arranged, and reciprocal feeder is arranged at the bottom of the following big comb hole fluidized-bed of baking cavity.The concrete characteristics of this programme also have, and described big comb hole fluidization bed accessory has leg-of-mutton sidewall.Top on described inwall sphere top also has peep hole.On the inwall at described reciprocal feeder and cone shaped body middle part, also have the coal dust jet pipe to stretch out outside the kiln body.
According to as can be known to the narration of such scheme, because in this scheme, at the kiln intracoelomic cavity inwall is arranged, the trapezoidal cone shaped body of circular cone that is surrounded by inwall is arranged on the cooling chamber of the bottom of inwall, what the inwall on cone shaped body top surrounded is cylindrical cavity, the top of inwall be positioned at chimney below inwall sphere top is arranged, below inwall sphere top, be connected with the big comb in big comb hole hole fluidized-bed is arranged on the sidewall, on inwall sphere top with comb greatly and between hole fluidized-bed and the kiln body baking cavity is arranged, and reciprocal feeder is arranged at the bottom of the following big comb hole fluidized-bed of baking cavity.This structure, because the existence of baking cavity is arranged, the raw material ball that drops at first enters this annular baking cavity, big comb hole fluidized-bed is arranged in the bottom of baking cavity, hot blast is through big comb hole fluidized-bed input baking cavity, making pellet carry out fluosolids roasting decomposes, the good pellet of roasting disperses to send into the high-temperature fluidizedization calcining zone that the cylindrical cavity that surrounded by inwall constitutes through reciprocal feeder, in the bottom of calcining zone is the trapezoidal cone shaped body of circular cone that is surrounded by inwall, this cone shaped body is concentrated hot blast, form powerful elevated temperature heat air-flow at calcining zone, make pellet in calcining zone, constitute the fluidization fluidized calcination, for keeping the high temperature in the calcining zone, on the inwall of calcining zone, also have the coal dust jet pipe to come postcombustion to guarantee to keep high temperature, the grog that burns till in calcining zone falls into the cooling chamber of kiln body bottom, and the cold wind through sending into cools off is rapidly again discharged by discharger, finishes roasting, the overall process of calcining and cooling.This programme is used big comb hole fluidized-bed in kiln, the decomposition roasting of pellet is separated with the process of fluidized calcination ripe material under high-temperature calcination district fluidized state, make material in kiln, form preheating, burning till and cool off can orderly by different level carrying out, changed accumulation formula calcining manners, so improved the even distribution of wind in kiln, realize quick roasting, calcining and cooling, reduce the time of staying of pellet in kiln, reduced hear rate, output and quality have been improved, and reduced that the content of dust has met environmental protection requirement in the waste gas, make shaft kiln really become high-quality, efficiently, energy-conservation, the novel kiln of environmental protection is particularly suitable for the transformation to existing traditional machine shaft kiln.This shows that the utility model compared with prior art has substantive distinguishing features and progress, its implementation result also is conspicuous.
For clearly demonstrating the technical characterstic of this programme,, and, this programme is set forth in conjunction with its accompanying drawing below by a specific embodiment.
Description of drawings:
Fig. 1 is the part sectional structure schematic diagram of the utility model embodiment.
By accompanying drawing as can be seen, the fluidization cement in vertical kiln of this programme, mainly include the chimney 3 on kiln body 2 and kiln body 2 tops, the cooling chamber 15 of hopper 6 and kiln body 2 bottoms, discharger 14 and airduct 1, the characteristics of this programme are at described kiln body 2 inner chambers inwall 12 to be arranged, the trapezoidal cone shaped body 13 of circular cone that is surrounded by inwall 12 is arranged in the bottom of inwall 12, what the inwall 12 on cone shaped body 13 tops surrounded is cylindrical cavity, the top of inwall 12 be positioned at chimney 3 below inwall sphere top 7 is arranged, below inwall sphere top 7, be connected with the big comb in big comb hole 9 hole fluidized-bed 4 is arranged on the sidewall, on inwall sphere top 7 and comb greatly and between hole fluidized-bed 4 and the kiln body 2 baking cavity 8 is arranged, and reciprocal feeder 10 is arranged at the bottom of the following big comb hole fluidized-bed 4 of baking cavity 8.Described big comb hole fluidized-bed 4 has leg-of-mutton sidewall.Top on described inwall sphere top 7 also has peep hole 5.On the inwall 12 at described reciprocal feeder 10 and cone shaped body 13 middle parts, also have coal dust jet pipe 11 to stretch out outside the kiln body 2.
Claims (4)
1. fluidization cement in vertical kiln, mainly include the chimney [3] on kiln body [2] and kiln body [2] top, the cooling chamber [15] of hopper [6] and kiln body [2] bottom, discharger [14] and airduct [1], it is characterized in that inwall [12] being arranged at described kiln body [2] inner chamber, the trapezoidal cone shaped body [13] of circular cone that is surrounded by inwall [12] is arranged in the bottom of inwall [12], what the inwall [12] on cone shaped body [13] top surrounded is cylindrical cavity, there is inwall sphere top [7] below that is positioned at chimney [3] at the top of inwall [12], below inwall sphere top [7], be connected with the big comb in big comb hole [9] hole fluidized-bed [4] is arranged on the sidewall, between inwall sphere top [7] and big comb hole fluidized-bed [4] and kiln body [2], baking cavity [8] is arranged, and reciprocal feeder [10] is arranged at the bottom of the following big comb hole fluidized-bed [4] of baking cavity [8].
2. fluidization cement in vertical kiln according to claim 1 is characterized in that described big comb hole fluidized-bed [4] has leg-of-mutton sidewall.
3. fluidization cement in vertical kiln according to claim 1 and 2 is characterized in that also having peep hole [5] at the top on described inwall sphere top [7].
4. fluidization cement in vertical kiln according to claim 3, coal dust jet pipe [11] stretches out outside the kiln body [2] to it is characterized in that going up in addition at the inwall [12] at described reciprocal feeder [10] and cone shaped body [13] middle part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00257001 CN2454740Y (en) | 2000-12-11 | 2000-12-11 | Fluidized-cement vertical kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00257001 CN2454740Y (en) | 2000-12-11 | 2000-12-11 | Fluidized-cement vertical kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2454740Y true CN2454740Y (en) | 2001-10-17 |
Family
ID=33613602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00257001 Expired - Fee Related CN2454740Y (en) | 2000-12-11 | 2000-12-11 | Fluidized-cement vertical kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2454740Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100412021C (en) * | 2006-12-28 | 2008-08-20 | 缪建通 | Energy-saving environment-friendly cement clinker production method |
-
2000
- 2000-12-11 CN CN 00257001 patent/CN2454740Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100412021C (en) * | 2006-12-28 | 2008-08-20 | 缪建通 | Energy-saving environment-friendly cement clinker production method |
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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 |