CN206940739U - Double air intake limekilns - Google Patents
Double air intake limekilns Download PDFInfo
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- CN206940739U CN206940739U CN201720759269.7U CN201720759269U CN206940739U CN 206940739 U CN206940739 U CN 206940739U CN 201720759269 U CN201720759269 U CN 201720759269U CN 206940739 U CN206940739 U CN 206940739U
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- blast pipe
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- kiln
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Abstract
The utility model discloses a kind of double air intake limekilns, including kiln body, kiln body is followed successively by preheating zone, burning zone, cooling zone from top to bottom, main blast pipe connecting fan, by entering below kiln body, it is opened on cooling zone, preheating zone export of the kiln gas pipe above kiln body, main blast pipe is provided with branch blast pipe, and branch blast pipe realizes heat exchange by wind wind heat exchanger and kiln gas pipe, and the opening of branch blast pipe is positioned at the lower end of burning zone.The beneficial effects of the utility model are：It can be not only that sufficient oxygen is provided in limekiln, avoid latent defect caused by supporting deficiency, moreover it is possible to make full use of kiln gas waste heat, save energy resource consumption.
Description
Technical field
The utility model belongs to tooling device, specifically a kind of double air intake limekilns.
Background technology
Limekiln is one of capital equipment of calcium carbonate manufacturing enterprise.Chinese patent literature CN102531416A, in 2012
On July 4, " energy-saving lime kiln " is disclosed, the invention includes kiln body, and kiln body is followed successively by preheating zone, burning zone, cold from top to down
But band, preheating zone top are provided with kiln gas discharge pipe, and cooling region is provided with normal temperature air input unit, it is defeated to be fixed on normal temperature air
Enter the preheated air input unit on device, normal temperature air input unit and preheated air input unit all include airduct and connection
In the blast cap of airduct air outlet, the blast cap of preheated air input unit is arranged on the top of normal temperature air input unit blast cap, and two
Individual blast cap forms double-deck false cap structure together, and kiln gas discharge pipe connection heat exchanger air inlet, heat exchanger is interior to be provided with heat exchanger tube, exchanges heat
The cold wind import connection air blower of pipe, the airduct of the hot-blast outlet connection preheated air input unit of heat exchanger tube, heat exchanger air-out
Mouth connection air exhauster.In use, this structure there is also it is certain the defects of.Firstly, since bottom of the blast pipe by limekiln
Into, cooling zone is opened on, quick lime to be cooled is covered with cooling zone, and the air-flow of blast pipe can be cooled with interior raw stone
The stop of ash, causes a certain degree of windage, in turn results in the keeping deficiency of top burning zone in kiln, influences production efficiency and production
Quality.Secondly as the air intake of blast pipe needs first to carry out cooling to quick lime to be cooled and enter back into burning zone to forge
Burn, just kiln gas waste heat should not can thus be returned to carrying out heat exchange by the air of blast pipe to improve cooling effect
Recycling is received to adversely affect.
The content of the invention
Based on above-mentioned deficiency, the utility model is intended to invent a kind of double air intake limekilns, can be not only to be carried in limekiln
For the oxygen of abundance, latent defect caused by supporting deficiency is avoided, moreover it is possible to make full use of kiln gas waste heat, save energy resource consumption.
To achieve these goals, the utility model adopts the following technical scheme that：A kind of double air intake limekilns, including kiln
Body, kiln body are followed successively by preheating zone, burning zone, cooling zone, main blast pipe connecting fan, by entering below kiln body, opened from top to bottom
Mouth is in cooling zone, and preheating zone export of the kiln gas pipe above kiln body, main blast pipe is provided with branch blast pipe, and branch blast pipe passes through wind
Wind heat exchanger realizes heat exchange with kiln gas pipe, and the opening of branch blast pipe is positioned at the lower end of burning zone.
In the technical program, individually designed branch blast pipe, cooling zone is not entered back into, but be introduced directly into burning zone, made
The oxygen demand of burning zone can be guaranteed by branch blast pipe.Meanwhile in order to improve kiln gas UTILIZATION OF VESIDUAL HEAT IN, reduction pair
The cooling of calcining belt temperature is influenceed, and also the air in branch blast pipe is preheated by wind wind heat exchanger.For the ease of to entering
The total blast volume entered in kiln is controlled, therefore the branch blast pipe of this programme design is drawn from main blast pipe, rather than individually
Another set of air blast facility is set.The limekiln so designed, partial air is not preheated, and cooling is sent directly into by main blast pipe
Band, after being cooled down to quick lime to be cooled, then it is raised up to burning zone and participates in calcining, another part air preheats by kiln gas
After be fed directly to burning zone participate in calcining.It so can both meet the oxygen demand of calcining, can ensure to cool down below kiln body again
Quick lime in band obtains necessary cooling, moreover it is possible to using kiln gas waste heat, saves the energy.
Preferably, branch blast pipe is attached around the ring pipe of kiln body, it is evenly spaced on ring pipe to enter provided with ring pipe
Air holes, the side wall of kiln body is penetrated, be opened on the inner side of kiln body side wall.The plenum system of the branch blast pipe of this programme design is to pass through
Ring pipe around kiln body is supplied, and uniform some fresh air inlets, are open in the inner side of kiln body side wall, such confession on ring pipe
Gas mode, it can supply to form complementation with the main blast pipe risen from below, the oxygen of burning zone is more evenly distributed, calcining is more
Fully, effect is more preferable.
Preferably, branch blast pipe is provided with valve.Valve can control the air inflow of branch blast pipe, when calcining amount is different
When can adjust different charge flow rates and be adapted to.
Preferably, the bottom of the cooling zone of the kiln body is shaped as up big and down small cone, the position of main blast pipe
Also it is up big and down small cone in the end in cooling zone, equidistant adaptation is fixed in the middle part of the cone of cooling zone；It is main
Main blast pipe air outlet is densely covered with the side wall of all directions of the end of blast pipe.The end of main blast pipe is designed to and kiln
The cone of the bottom shape adaptation of the cooling zone of body, optimal cooling effect can be formed to most quick lime to be cooled
Fruit, avoid producing cooling dead angle.
Preferably, the top of the end in cooling zone of main blast pipe is provided with the vault of circular arc.Circular arc
Vault can make the quick lime that cooling finishes not rest on the end of main blast pipe in discharging, conveniently operate.
In summary, the beneficial effects of the utility model are：It can be not only that sufficient oxygen is provided in limekiln, avoid
Latent defect caused by supporting deficiency, moreover it is possible to make full use of kiln gas waste heat, save energy resource consumption.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Wherein：1 preheating zone, 2 burning zones, 3 cooling zones, 4 main blast pipes, 5 blower fans, 6 blast pipes, 7 wind wind heat exchangers, 8
Ring pipe, 9 kiln gas pipes, 41 main blast pipe air outlets, 61 valves, 81 ring pipe fresh air inlets；Solid arrow show the stream of air
Dynamic direction, dotted arrow show the flow direction of kiln gas.
Embodiment
The utility model is further described with embodiment below in conjunction with the accompanying drawings.
Embodiment as shown in Figure 1, it is a kind of double air intake limekilns, applies in calcium carbonate manufacturing enterprise calcining quick lime
In production.Double air intake limekilns of this example, the use of blower fan 5 is unique air intake equipment, is kiln body air intake.Kiln body is shaft kiln, from
Up to lower is respectively preheating zone 1, burning zone 2 and cooling zone 3.Blower fan connects main blast pipe 4, and the end of main blast pipe is located at cooling
Band lower section.Main blast pipe is provided with branch in the root for leaving blower fan, is exactly branch blast pipe 6, and branch blast pipe passes through wind wind heat exchanger
7, then it is passed through burning zone.The heat side of swapping out of wind wind heat exchanger is kiln gas pipe 9, and kiln gas pipe is exported from preheating zone, changed by wind wind
Guiding collection device is stand-by after hot device realizes UTILIZATION OF VESIDUAL HEAT IN.Be provided with ring pipe 8 around kiln body, position burning zone lower surface slightly on
A little positions, ring pipe are set around kiln body, are uniformly provided with some ring pipe fresh air inlets 81, the insertion of ring pipe fresh air inlet thereon
Kiln body side wall, it is opened on the inner side of kiln body side wall.Branch blast pipe connects ring pipe, the air inlet of branch blast pipe is passed through ring pipe air intake
Hole enters burning zone lower end.Branch blast pipe is provided with the valve 61 of control.The bottom of the cooling zone of kiln body is shaped as greatly
Under small cone, the end in cooling zone of main blast pipe is also up big and down small cone, the end of main blast pipe
The cone middle part for being fixed on cooling zone of adaptation, makes the conical inclined surface of the end of main blast pipe and the circular cone morpheme of cooling zone
It is equidistant between the madial wall put；Main blast pipe air outlet is densely covered with all directions of the end of main blast pipe.Main air intake
The vault of circular arc is provided with above the end of pipe.The end of main blast pipe including stretch into all close on the main blast pipe in cooling zone
Cloth is provided with main blast pipe air outlet 41.
Double air intake limekilns of this example, material calcination reaction in kiln body, portion of air pass through main blast pipe by blower fan
Into kiln body, burning zone participation calcination reaction is being risen to after lower section cooling zone cools down to the quick lime with cooling, it is another
Partial air enters the lower end of burning zone after wind wind heat exchanger is preheated, directly participates in calcination reaction by branch blast pipe；
And collection device is drained into again after UTILIZATION OF VESIDUAL HEAT IN is carried out in wind wind heat exchanger from the kiln gas of preheating zone discharge and is utilized.Whole kiln body knot
Structure is simple, and the oxygen supply to calcining is abundant, and effective utilization is maintained to waste heat, and quick lime has also obtained necessary cooling.
Claims (5)
1. a kind of double air intake limekilns, including kiln body, kiln body are followed successively by preheating zone from top to bottom（1）, burning zone（2）, cooling zone
（3）, main blast pipe（4）Connecting fan（5）, by entering below kiln body, it is opened on cooling zone, kiln gas pipe（9）Above kiln body
Preheating zone exports, it is characterized in that, main blast pipe is provided with branch blast pipe（6）, branch blast pipe passes through wind wind heat exchanger（7）With kiln gas
Pipe realizes heat exchange, and the opening of branch blast pipe is positioned at the lower end of burning zone.
2. a kind of double air intake limekilns according to claim 1, it is characterized in that, branch blast pipe is attached around the annular of kiln body
Pipe（8）, it is evenly spaced on ring pipe to be provided with ring pipe fresh air inlet（81）, the side wall of kiln body is penetrated, is opened on kiln body side wall
Inner side.
3. a kind of double air intake limekilns according to claim 2, it is characterized in that, branch blast pipe is provided with valve（61）.
4. a kind of double air intake limekilns according to claim 3, it is characterized in that, the bottom shape of the cooling zone of the kiln body
Shape is up big and down small cone, and the end in cooling zone of main blast pipe is also up big and down small cone, equidistant
The cone middle part for being fixed on cooling zone of adaptation；Main blast pipe air outlet is densely covered with all directions of the end of main blast pipe
（41）.
5. a kind of double air intake limekilns according to claim 4, it is characterized in that, the end in cooling zone of main blast pipe
The top in portion is provided with the vault of circular arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720759269.7U CN206940739U (en) | 2017-06-27 | 2017-06-27 | Double air intake limekilns |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720759269.7U CN206940739U (en) | 2017-06-27 | 2017-06-27 | Double air intake limekilns |
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| Publication Number | Publication Date |
|---|---|
| CN206940739U true CN206940739U (en) | 2018-01-30 |
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ID=61367458
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720759269.7U Active CN206940739U (en) | 2017-06-27 | 2017-06-27 | Double air intake limekilns |
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| CN (1) | CN206940739U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108529909A (en) * | 2018-07-24 | 2018-09-14 | 陈文武 | A kind of energy-efficient low-loss lime burner furnace |
| CN108793781A (en) * | 2018-07-24 | 2018-11-13 | 陈文武 | A kind of energy-saving and environment-friendly twin furnace lime burner furnace |
| CN109437608A (en) * | 2018-11-09 | 2019-03-08 | 余松涛 | A kind of two-way wind built-in heat exchanger lime shaft kiln and its method for calcinating |
| CN110526596A (en) * | 2018-05-23 | 2019-12-03 | 绵竹市拱星氧化钙厂 | The mixing formula limekiln of fast cooling discharging |
-
2017
- 2017-06-27 CN CN201720759269.7U patent/CN206940739U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110526596A (en) * | 2018-05-23 | 2019-12-03 | 绵竹市拱星氧化钙厂 | The mixing formula limekiln of fast cooling discharging |
| CN110526596B (en) * | 2018-05-23 | 2023-08-29 | 四川马氏窑技术发展有限公司 | Quick cooling and discharging mixed lime kiln |
| CN108529909A (en) * | 2018-07-24 | 2018-09-14 | 陈文武 | A kind of energy-efficient low-loss lime burner furnace |
| CN108793781A (en) * | 2018-07-24 | 2018-11-13 | 陈文武 | A kind of energy-saving and environment-friendly twin furnace lime burner furnace |
| CN109437608A (en) * | 2018-11-09 | 2019-03-08 | 余松涛 | A kind of two-way wind built-in heat exchanger lime shaft kiln and its method for calcinating |
| CN109437608B (en) * | 2018-11-09 | 2021-06-15 | 余松涛 | Double-path air built-in heat exchanger lime shaft kiln and calcining method thereof |
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