CN201637269U - Return air energy-saving annular kiln for shale brick production - Google Patents
Return air energy-saving annular kiln for shale brick production Download PDFInfo
- Publication number
- CN201637269U CN201637269U CN2009202939343U CN200920293934U CN201637269U CN 201637269 U CN201637269 U CN 201637269U CN 2009202939343 U CN2009202939343 U CN 2009202939343U CN 200920293934 U CN200920293934 U CN 200920293934U CN 201637269 U CN201637269 U CN 201637269U
- Authority
- CN
- China
- Prior art keywords
- flue
- return air
- air
- kiln
- wind
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 239000011449 brick Substances 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 230000029058 respiratory gaseous exchange Effects 0.000 claims description 22
- 238000009413 insulation Methods 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound 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[C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 239000003245 coal Substances 0.000 claims description 7
- 206010022000 Influenza Diseases 0.000 claims description 3
- 239000000779 smoke Substances 0.000 abstract description 14
- 238000001354 calcination Methods 0.000 abstract 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N carbon monoxide Chemical compound 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[O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 21
- 239000003546 flue gas Substances 0.000 description 21
- 238000001035 drying Methods 0.000 description 12
- 239000007789 gas Substances 0.000 description 8
- 238000010304 firing Methods 0.000 description 7
- 230000000875 corresponding Effects 0.000 description 5
- 239000000446 fuel Substances 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000004064 recycling Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229920002456 HOTAIR Polymers 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000003009 desulfurizing Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
Abstract
The utility model discloses a return air energy-saving annular kiln for shale brick production, which comprises a kiln channel, a main flue and a draught fan, wherein a smoke vent is arranged at the bottom of the outside wall of the kiln channel; a return air flue is arranged outside the kiln channel; the return air flue is communicated with the main flue through a smoke venting channel; the draught fan is arranged at the connection position of the return air flue and the smoke venting channel; the smoke vent is communicated with the return air flue through a return air branched flue; and a return air damper is arranged at the connection position of the return air branched flue and the return air flue. Calcinated high-temperature smoke passing through the return air branched flue is transmitted to a dry area of the kiln channel by using the return air flue to make dry processing for unburned bricks. By controlling various dampers, the high-temperature smoke is circularly used in the return air energy-saving annular kiln thereby improving the use rate of the high-temperature smoke. Thus, not only the energy can be effectively saved, but also continuous dryness, preheat and calcination can be realized, the production efficiency can be largely improved, and the yield can be improved to more than two times.
Description
Technical field
The utility model relates to a kind of air return type energy saving annular kiln that shale brick is produced that is used for.
Background technology
Annular kiln is also referred to as the ring kiln, is a kind of continous way kiln of producing brick and tile.In general, annular kiln has a continuous ring kiln road, and its straight section partly is straight kiln section, and semi arch partly is curved kiln section.Kiln does not have cross wall in the road, establishes a wicket at a certain distance at kiln road external wall, as the usefulness that takes on adobe or finished bricks, and the respective segments between two adjacent wickets. be called a firing chamber.Firing chamber's sidewall between the wicket is provided with exhaust smoke hole, is also referred to as Kazakhstan wind, is provided with flue collector between two parallel kiln roads of whole kiln road length direction, is connected by branch flue between flue collector and the Kazakhstan wind, and branch flue and flue collector junction are provided with the cast iron cone brake.Establish chimney or smoke exhaust fan on the flue collector, above-mentioned Kazakhstan wind, branch flue, flue collector and chimney (or smoke exhaust fan) facility constitute whole smoke evacuation system.In the wheel kiln baking process, the flue gas after the fuel combustion promptly flows into flue collector through exhaust smoke hole, branch flue, again through chimney or smoke exhaust fan emptying.
The annular kiln of normal roasting can be divided into preheating zone, roasting band, salband.The goods sign indicating number is gone into behind the annular kiln and is not moved, and each band is along with continuously adorning base (setting), roasting, and ejection (kiln discharge) operation is moved along the ring kiln road, and fuel burns between hack or space, and then produces heat heating base substrate.The fuel combustion required air is from salband, and promptly cold air is entered by the opened wicket of salband, flows to roasting band direction, because the effect of convection heat transfer' heat-transfer by convection, cold air is heated to form hot-air and enters the roasting band for fuel combustion usefulness.Flue gas that fuel combustion generated continues to move to the preheating zone direction, by heat exchanges such as convection current, conduction, makes the base substrate of preheating zone obtain preheating and heats up, reduce gradually thereby flue-gas temperature is then corresponding, after smoke evacuation system expel from kiln.During the dress base, obturage the whole section in kiln road with " paper shelves " in every firing chamber, when flame move forward a firing chamber apart from the time, promptly should mention top, preheating zone paper and keep off the cone brake of previous firing chamber, its paper shelves are burnt, will be closed near a cone brake of roasting band simultaneously, a firing chamber thereby each band all advances, cooperate the operation of dress base, ejection, wheel kiln baking can continuously be circulated carry out.In ordinary production, though flame constantly moves forward (fiery line speed is generally diel 20-40m), the big variation of shared firing chamber this nothing of base respectively is with also along with corresponding reach in the position that makes each band, is in metastable state.Therefore, in actual production process, require production management and operation to guarantee that each band is balanced, just can make annular kiln be able to normally move all the time, the output of product and quality also could guarantee to some extent.
But the high-temperature flue gas that produces in the existing wheel kiln baking process has only utilized once, i.e. adobe to the preheating zone plays pre-heat effect, just is discharged to atmosphere then and has suffered.In fact, the flue-gas temperature of discharge is very high, and directly emptying has wasted thermal source, if can carry out drying to adobe, to replace the existing natural drying or to utilize the special equipment heat drying to its recycle and reuse, not only energy savings effectively can also be enhanced productivity greatly.
Therefore, need to explore a kind of energy saving annular kiln that shale brick is produced that is used for, to solve the problem that high-temperature flue gas can not be recycling after the roasting, can utilize these high-temperature flue gas that drying is carried out in adobe, energy savings is enhanced productivity.
The utility model content
In view of this, the air return type energy saving annular kiln that the utility model provides a kind of shale brick to produce to solve the problem that high-temperature flue gas can not be recycling after the roasting, can utilize these high-temperature flue gas that drying is carried out in adobe, and energy savings is enhanced productivity.
The air return type energy saving annular kiln that is used for shale brick production of the present invention, comprise kiln road, flue collector and air-introduced machine, the external wall bottom in described kiln road is provided with the outer wind of breathing out, the outer wind of breathing out is communicated with flue collector by the outer wind branch flue of breathing out, outer Kazakhstan wind branch flue and flue collector junction are provided with the outer wind air lock of breathing out, the arranged outside return air flue of described kiln road external wall, the return air flue is communicated with flue collector by discharge flue, the outlet side of air-introduced machine is communicated with the gas approach of return air flue, and inlet end is communicated with the exhanst gas outlet of discharge flue; Described air-introduced machine is arranged on the junction of return air flue and discharge flue; The described outer wind of breathing out is communicated with the return air flue by the return air branch flue, and return air branch flue and return air flue junction are provided with the return air air lock.
Further, breathe out wind in the inside wall bottom in described kiln road is provided with, interior Kazakhstan wind is communicated with flue collector by interior Kazakhstan wind branch flue, breathes out the wind air lock in interior Kazakhstan wind branch flue and flue collector junction are provided with;
Further, also comprise hothouse, be set up in parallel many dry flues in the described hothouse, dry flue all is communicated with the exhanst gas outlet of return air flue;
Further, also comprise the environmental protection treatment pond, the outlet of described return air flue and the outlet of dry flue all are communicated with the environmental protection treatment pond;
Further, described outer wind branch flue, interior Kazakhstan wind branch flue, return air flue and the discharge flue breathed out all is embedded in underground;
Further, top, described kiln road is provided with heat-insulation layer, and the coal feeding hole that runs through heat-insulation layer and be communicated with the kiln road vertically is set in the heat-insulation layer.
The beneficial effects of the utility model: the high-temperature flue gas after the utility model utilizes the return air flue with roasting, the dry section of sending into the kiln road by the return air branch flue carries out drying to adobe to be handled, by control to various air locks, make high-temperature flue gas recycling in annular kiln, improve the utilization rate of high-temperature flue gas, energy savings effectively, and realized that the drying and preheating roasting carries out continuously, can enhance productivity greatly, output can improve more than 2 times.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is further described.
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is that the A-A of Fig. 1 is to cutaway view;
Fig. 3 is that the B-B of Fig. 1 is to cutaway view;
Fig. 4 is that the C-C of Fig. 1 is to cutaway view.
The specific embodiment
Fig. 1 is a structural representation of the present invention, and Fig. 2 is that the A-A of Fig. 1 is to cutaway view; Fig. 3 is that the B-B of Fig. 1 is to cutaway view; Fig. 4 is that the C-C of Fig. 1 is to cutaway view.As shown in the figure: the air return type energy saving annular kiln that is used for shale brick production of present embodiment, comprise that continuous ring kiln road 1, Yao Dao comprise straight kiln section and curved kiln section, flue collector 2 be arranged in parallel between the two straight kiln sections, separate with brick wall between kiln road 1 and the flue collector 2,1 external wall bottom, kiln road is provided with the outer wind 4 of breathing out, the outer wind 4 of breathing out is communicated with flue collector 2 by the outer wind branch flue 5 of breathing out, the outer wind branch flue 5 of breathing out is provided with the outer wind air lock 6 of breathing out with flue collector 2 junctions, describedly breathes out wind outward, to breathe out the wind branch flue outward corresponding one by one with outer Kazakhstan wind air lock.The return air flue 7 that described kiln road 1 arranged outside is parallel with the kiln road, return air flue 7 is communicated with flue collector 2 by discharge flue 8; Described air-introduced machine 3 is arranged on the junction of return air flue 7 and discharge flue 8, the outlet side of air-introduced machine 3 is communicated with the gas approach of return air flue 7, inlet end is communicated with the exhanst gas outlet of discharge flue 8, and the flue gas in the flue collector is introduced in the return air flue by discharge flue; The described outer wind 4 of breathing out is communicated with return air flue 7 by return air branch flue 9, and return air branch flue 9 is provided with return air air lock 10 with return air flue 7 junctions, and it is corresponding one by one to breathe out wind, return air branch flue and return air air lock outward.
In the present embodiment, in being provided with, 1 inside wall bottom, described kiln road breathes out wind 11, the interior wind 11 of breathing out is communicated with flue collector 2 by interior Kazakhstan wind branch flue 12, and Kazakhstan wind air lock 13 in interior Kazakhstan wind branch flue 12 is provided with flue collector 2 junctions, interior Kazakhstan wind, interior Kazakhstan wind branch flue and Nei Ha wind air lock are also corresponding one by one.
In the present embodiment, also comprise hothouse, be set up in parallel five dry flues 14 in the described hothouse, certainly, the quantity of dry flue determines that according to actual conditions concrete bar number does not influence the purpose of this utility model.Dry flue 14 all is communicated with the exhanst gas outlet of return air flue 7, high-temperature flue gas unnecessary in the return air flue can be introduced dry flue drying is carried out in the adobe in the hothouse.
In the present embodiment, also comprise environmental protection treatment pond 15, the exhanst gas outlet of the exhanst gas outlet of described return air flue 7 and dry flue 14 all is communicated with environmental protection treatment pond 15, can carry out environmental protection treatment to flue gas, as desulfurization, prevents that the emptying flue gas from causing atmosphere pollution.
In the present embodiment, as dotting among Fig. 1, and as Fig. 2 Fig. 3 Fig. 4 respectively shown in: as described in outer wind branch flue 5, interior Kazakhstan wind branch flue 12, return air flue 7 and the discharge flue 8 breathed out all be embedded in undergroundly, do not take up space, the utilized space in kiln road is increased.
In the present embodiment, 1 top, described kiln road is provided with heat-insulation layer 16, and the coal feeding hole 17 that runs through heat-insulation layer 16 and be communicated with kiln road 1 vertically is set in the heat-insulation layer 16, throws coal and can ignite in coal feeding hole, also can be coal in the kiln road when burning is insufficient; When drying process, coal feeding hole also can be used as the overfolw hole of steam.
The present invention in use, after the success of igniting, the outer pairing outer Kazakhstan of the wind wind air lock of breathing out behind unlatching and the roasting band, under the air-introduced machine effect, flame introduced roasting band ignite cinder and gangue in the adobe, carry out roasting, the high-temperature flue gas that produces enters flue collector through the outer wind branch flue of breathing out, and enters the return air flue via discharge flue again; In roasting, sign indicating number is put adobe to be dried on the dry zone kiln road after the roasting band, outer pairing outer wind air lock or the interior Kazakhstan wind air lock breathed out of wind of breathing out behind pairing return air air lock of outer Kazakhstan wind between unlatching dry zone and the roasting band and the dry zone, high-temperature flue gas is introduced dry zone kiln road, carry out brick blank drying, the flue gas of drying belt reenters the circulation of return air flue after reentering flue collector and the new high-temperature flue gas of roasting band discharge mixes via outer Kazakhstan wind branch flue or interior Kazakhstan wind branch flue; After roasting finishes, repeat aforementioned process, roast area is advanced backward along the kiln road, form continual roasting, the constantly new adobe of drying and preheating again can be enhanced productivity greatly simultaneously, and simultaneously, high-temperature flue gas is recycling, effectively energy savings.
Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (6)
1. one kind is used for the air return type energy saving annular kiln that shale brick is produced, comprise kiln road (1), flue collector (2) and air-introduced machine (3), the external wall bottom in described kiln road (1) is provided with the outer wind (4) of breathing out, the outer wind (4) of breathing out is communicated with flue collector (2) by the outer wind branch flue (5) of breathing out, the outer wind branch flue (5) of breathing out is provided with the outer wind air lock (6) of breathing out with flue collector (2) junction, it is characterized in that: the arranged outside return air flue (7) of described kiln road (1) external wall, return air flue (7) is communicated with flue collector (2) by discharge flue (8); Described air-introduced machine (3) is arranged on the junction of return air flue (7) and discharge flue (8), and the outlet side of air-introduced machine (3) is communicated with the gas approach of return air flue (7), and inlet end is communicated with the exhanst gas outlet of discharge flue (8); The described outer wind (4) of breathing out is communicated with return air flue (7) by return air branch flue (9), and return air branch flue (9) is provided with return air air lock (10) with return air flue (7) junction.
2. the air return type energy saving annular kiln that is used for shale brick production according to claim 1, it is characterized in that: breathe out wind (11) in the inside wall bottom in described kiln road (1) is provided with, the interior wind (11) of breathing out is communicated with flue collector (2) by interior Kazakhstan wind branch flue (12), Kazakhstan wind air lock (13) in interior Kazakhstan wind branch flue (12) is provided with flue collector (2) junction.
3. the air return type energy saving annular kiln that is used for shale brick production according to claim 2, it is characterized in that: also comprise hothouse, be set up in parallel many dry flues (14) in the described hothouse, dry flue (14) all is communicated with the exhanst gas outlet of return air flue (7).
4. the air return type energy saving annular kiln that is used for shale brick production according to claim 3, it is characterized in that: also comprise environmental protection treatment pond (15), the exhanst gas outlet of the exhanst gas outlet of described return air flue (7) and dry flue (14) all is communicated with environmental protection treatment pond (15).
5. according to each described air return type energy saving annular kiln that is used for shale brick production of claim 1 to 4, it is characterized in that: described outer wind branch flue (5), interior Kazakhstan wind branch flue (12), return air flue (7) and the discharge flue (8) breathed out all is embedded in underground.
6. the air return type energy saving annular kiln that is used for shale brick production according to claim 5, it is characterized in that: top, described kiln road (1) is provided with heat-insulation layer (16), and the coal feeding hole (17) that runs through heat-insulation layer (16) and be communicated with kiln road (1) vertically is set in the heat-insulation layer (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202939343U CN201637269U (en) | 2009-12-31 | 2009-12-31 | Return air energy-saving annular kiln for shale brick production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202939343U CN201637269U (en) | 2009-12-31 | 2009-12-31 | Return air energy-saving annular kiln for shale brick production |
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| Publication Number | Publication Date |
|---|---|
| CN201637269U true CN201637269U (en) | 2010-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202939343U Expired - Lifetime CN201637269U (en) | 2009-12-31 | 2009-12-31 | Return air energy-saving annular kiln for shale brick production |
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| CN (1) | CN201637269U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101749950B (en) * | 2009-12-31 | 2012-07-25 | 开县鼎盛建材有限公司 | Air return type energy saving annular kiln for producing shale brick and production method |
| CN103575098A (en) * | 2013-10-12 | 2014-02-12 | 张岘宾 | Annular self-igniting groove for shale brick production and method for producing shale bricks |
| CN104142056A (en) * | 2013-05-08 | 2014-11-12 | 柏飞 | Tunnel kiln equipped with air door in cross section |
-
2009
- 2009-12-31 CN CN2009202939343U patent/CN201637269U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101749950B (en) * | 2009-12-31 | 2012-07-25 | 开县鼎盛建材有限公司 | Air return type energy saving annular kiln for producing shale brick and production method |
| CN104142056A (en) * | 2013-05-08 | 2014-11-12 | 柏飞 | Tunnel kiln equipped with air door in cross section |
| CN104142056B (en) * | 2013-05-08 | 2018-09-25 | 柏飞 | The tunnel oven on cross section is arranged in a kind of Kazakhstan air lock |
| CN103575098A (en) * | 2013-10-12 | 2014-02-12 | 张岘宾 | Annular self-igniting groove for shale brick production and method for producing shale bricks |
| CN103575098B (en) * | 2013-10-12 | 2016-01-13 | 梁国柱 | A kind of method of annular spontaneous combustion groove for shale brick production and production shale brick thereof |
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Granted publication date: 20101117 Effective date of abandoning: 20091231 |