CN103968662B - A kind of tunnel furnace reducing dust discharge and the method reducing dust discharge thereof - Google Patents
A kind of tunnel furnace reducing dust discharge and the method reducing dust discharge thereof Download PDFInfo
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- CN103968662B CN103968662B CN201410202030.0A CN201410202030A CN103968662B CN 103968662 B CN103968662 B CN 103968662B CN 201410202030 A CN201410202030 A CN 201410202030A CN 103968662 B CN103968662 B CN 103968662B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
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Abstract
The present invention discloses a kind of tunnel furnace reducing dust discharge and the method reducing dust discharge thereof, the tunnel furnace of the reduced dust discharge of the present invention, comprise tunnel furnace body, tunnel furnace body comprises Yao Qiang and the wicket at kiln tail place, wicket is provided with and organizes cooling blower more, respectively being provided with a boss on the both sides kiln wall of last kiln car position of tunnel kiln tail, the boss place on the kiln wall of both sides is provided with one group of gas blower. The method of the reduction tunnel furnace dust discharge of the present invention arranges the boss with certain space on the both sides kiln wall of last kiln car position of tunnel kiln tail, one group of gas blower is respectively installed for wind by boss place, blower fan and Zhuan Duo is made to have certain distance, strengthen fan action scope, it is to increase efficiency of dust collection. The present invention can improve environmental protection and the energy saving of tunnel furnace, solves dust accumulation when conventional tunnel kiln uses and follows brick in the gap that brick pile up neatly and pile up neatly kiln and the dust leakage that occurs when kiln car goes out kiln pollutes and the problem of heat heavy losses.
Description
Technical field
The invention belongs to and fire furnace equipment field, be specifically related to a kind of tunnel furnace reducing dust discharge and the method reducing dust discharge thereof.
Background technology
The dust of tunnel furnace of baking bricks produces primarily of roasting process, when brick buttress enters cooling section from burning zone under the carrying of kiln car, has a large amount of dust and enters cooling zone thereupon. airstream in kiln is from kiln tail to entering the flowing of kiln direction, to have suction opening in preheating zone and cooling zone initial section, and major part dust is followed after air-flow is extracted out from suction opening by blower fan and carried out unifying dust removal process. preheating zone and clinkering zone are negative pressure and micro-pressure operation, and tunnel furnace itself has stopping property, so tunnel furnace inside can not occur a large amount of dust to reveal the phenomenon of atmosphere pollution, but owing to kiln tail cooling air is unidirectional wind, and in order to improve production efficiency, brick buttress is piled up dense (namely gap less) between adobe usually, in the gap that cooling air is narrow and small between adobe turbulent flow strong not especially in the gap vertical with wind direction flow velocity slower, thus cause part dust accumulation to follow finished product in the gap that brick is piled up neatly and go out kiln together and directly discharge and pollute in an atmosphere. cooling section is malleation, and when going out kiln, kiln tail wicket is mentioned, and causes gas outflow with the pressure missionary society of environment thus occurs that the phenomenon that dust is revealed and heat scatters and disappears serious occurs.
Summary of the invention
The present invention provides a kind of tunnel furnace reducing dust discharge and the method reducing dust discharge thereof, to improve environmental protection and the energy saving of tunnel furnace, it is intended to solve dust accumulation when conventional tunnel kiln uses and follow brick in the gap that brick pile up neatly and pile up neatly kiln and the dust leakage that occurs when kiln car goes out kiln pollutes and the problem of heat heavy losses.
It is an object of the invention to provide a kind of tunnel furnace reducing dust discharge, comprise tunnel furnace body, tunnel furnace body comprises Yao Qiang and the wicket at kiln tail place, wicket is provided with and organizes cooling blower more, its special character is: described tunnel furnace body is respectively provided with a boss on the both sides kiln wall of last kiln car position of kiln tail, and the boss place on the kiln wall of both sides is respectively provided with one group of gas blower.
Further, the width a of described boss is 0.24��0.43 times of length b, and the front section face of boss and the tilt angle alpha of kiln length direction are between 28 �㡫46 ��.
Further, described gas blower go out air port and kiln length direction angled ��, �� are 52 �㡫63 ��, often organize gas blower 0.23��0.37 times that goes out that air quantity is that wicket cooling blower goes out air quantity.
Another object of the present invention is to provide a kind of method reducing tunnel furnace dust discharge, the method of this reduction tunnel furnace dust discharge arranges the boss with certain space on the both sides kiln wall of last kiln car position of tunnel kiln tail, one group of gas blower is respectively installed for wind by boss place on the kiln wall of both sides, blower fan and Zhuan Duo is made to have certain distance, strengthen fan action scope, it is to increase efficiency of dust collection.
The width a of above-mentioned boss is 0.24��0.43 times of length b, and the front section face of boss and the tilt angle alpha of kiln length direction are between 28 �㡫46 �� so that blower fan and brick buttress keep certain distance, strengthen the sphere of action of single blower fan, it is to increase efficiency of dust collection.
Above-mentioned gas blower go out air port and kiln length direction angled ��, �� are 52 �㡫63 ��, often organize gas blower 0.23��0.37 times that goes out that air quantity is that wicket cooling blower goes out air quantity.
The tunnel furnace reducing dust discharge provided by the invention and the method reducing dust discharge thereof, environmental protection and the energy saving of tunnel furnace can be improved, dust accumulation when conventional tunnel kiln uses can be solved simultaneously and in the gap that brick pile up neatly, follow brick pile up neatly kiln and the dust leakage that occurs when kiln car goes out kiln pollutes and the problem of heat heavy losses. Invent each increase by one group of gas blower on last joint both sides, kiln car position kiln wall of kiln tail, with the cooling blower on kiln tail wicket simultaneously for wind, strengthen air-flow velocity and turbulence intensity in brick buttress, brick buttress is made to have strong air flow to pass through along the gap of kiln length and kiln width two directions, all dust are all blowed to tunnel furnace front end and is extracted out by vacuum fan and carry out unifying dust removal process, thus reach dedusting object. Increase gas blower place kiln wall is designed to protrude shape by the present invention simultaneously so that gas blower and brick buttress keep certain distance, strengthen fan action scope, it is to increase efficiency of dust collection. When going out kiln wicket after mentioning newly-increased air blast function continue section forward and ensure cooling section furnace pressure for wind, the dust caused due to pressure difference after preventing wicket from mentioning reveals and heat scatters and disappears, and maintains normal kiln atmosphere simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of the tunnel furnace of the reduced dust discharge of the embodiment of the present invention;
Wherein, 1-kiln wall, 2-wicket, 3-cooling blower, 4-boss, 5-gas blower.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail:
See Fig. 1, the tunnel furnace of the reduced dust discharge of the embodiment of the present invention, comprise tunnel furnace body, tunnel furnace body comprises kiln wall 1 and the wicket 2 at kiln tail place, wicket 2 is provided with many group cooling blowers 3, tunnel furnace body is respectively provided with a boss 4 on the both sides kiln wall of last kiln car position of kiln tail, and boss 4 place in the kiln wall of both sides is respectively provided with one group of gas blower 5, and often organizing gas blower is 3 gas blowers that cocurrent and parallel is arranged.
The width a of boss 4 is 0.24��0.43 times of length b, and the front section face of boss 4 and the tilt angle alpha of kiln length direction are between 28 �㡫46 ��.
Gas blower 5 go out air port and kiln length direction angled ��, �� are 52 �㡫63 ��, often organize gas blower 0.23��0.37 times that goes out that air quantity is that wicket cooling blower goes out air quantity.
The method of the reduction tunnel furnace dust discharge that the embodiment of the present invention provides arranges the boss with certain space on the both sides kiln wall of last kiln car position of tunnel kiln tail, one group of gas blower is respectively installed for wind by boss place on the kiln wall of both sides, blower fan and Zhuan Duo is made to have certain distance, strengthen fan action scope, it is to increase efficiency of dust collection.
The width a of boss is 0.24��0.43 times of length b, and the front section face of boss and the tilt angle alpha of kiln length direction are between 28 �㡫46 �� so that blower fan and brick buttress keep certain distance, strengthen the sphere of action of single blower fan, it is to increase efficiency of dust collection.
Gas blower go out air port and kiln length direction angled ��, �� are 52 �㡫63 ��, often organize gas blower 0.23��0.37 times that goes out that air quantity is that wicket cooling blower goes out air quantity.
The present invention is each on the both sides kiln wall of last kiln car position of kiln tail length direction increases by one group of gas blower, add original cooling blower on wicket, supply wind from transverse direction and side direction two directions during work simultaneously, three direction air-flows cross in the gap that last kiln car brick is piled up neatly and form strong turbulent flow, force dust to follow air-flow and flow to front section kiln together, then extracted out by cooling zone and preheating zone suction opening and carry out unifying dust removal process, when finished product goes out kiln, in gap, dust all passes through cleaning, decreases tunnel furnace dust pollution thing quantity discharged. Due to bake bricks tunnel furnace Zhuan Duo and Yao Qiang side play less, so increasing gas blower place kiln wall to be designed to projection shape, projection width a is 0.24��0.43 times of length b, front section is oblique angle, angle [alpha] is designed between 28 �㡫46 ��, make blower fan and brick buttress keep certain distance, strengthen the sphere of action of blower fan, it is to increase efficiency of dust collection. In order to avoid cooling air between each group of blower fan mutually to hinder, by the outlet of newly-increased blower fan and the angled �� of kiln length direction, use Fluid Mechanics Computation software Fluent simulate the dust removing effects of newly-increased blower fan under different angles and in conjunction with practical application, result display �� efficiency of dust collection within the scope of 52 �㡫63 �� is best, and the air quantity that goes out of single group gas blower is that wicket blower fan goes out 0.23��0.37 times of air quantity and is advisable. Newly-increased gas blower can continue work when kiln car goes out kiln, keeps furnace pressure, and the dust caused due to pressure difference after stoping wicket to be mentioned reveals and heat scatters and disappears.
The foregoing is only the better embodiment of the present invention, not in order to limit the present invention, all any amendment, equivalent replacement and improvement etc. done within the spirit and principles in the present invention, all should be included within protection scope of the present invention.
Claims (4)
1.A kind of tunnel furnace reducing dust discharge, comprise tunnel furnace body, tunnel furnace body comprises the wicket (2) at kiln wall (1) and kiln tail place, wicket (2) is provided with and organizes cooling blower (3) more, it is characterized in that: described tunnel furnace body is respectively provided with a boss (4) on the both sides kiln wall of last kiln car position of kiln tail, and boss (4) place on the kiln wall of both sides is respectively provided with one group of gas blower (5); The width a of described boss (4) is 0.24��0.43 times of length b, and the front section face of boss (4) and the tilt angle alpha of kiln length direction are between 28 �㡫46 ��.
2.A kind of tunnel furnace reducing dust discharge according to claim 1, it is characterized in that: described gas blower (5) go out air port and the angled �� of kiln length direction, �� is 52 �㡫63 ��, often organize gas blower 0.23��0.37 times that goes out that air quantity is that wicket cooling blower goes out air quantity.
3.A kind of method reducing tunnel furnace dust discharge, it is characterized in that: the boss with certain space is set on the both sides kiln wall of last kiln car position of tunnel kiln tail, one group of gas blower is respectively installed for wind by boss place on the kiln wall of both sides, blower fan and Zhuan Duo is made to have certain distance, strengthen fan action scope, it is to increase efficiency of dust collection;The width a of described boss is 0.24��0.43 times of length b, and the front section face of boss and the tilt angle alpha of kiln length direction are between 28 �㡫46 �� so that blower fan and brick buttress keep certain distance, strengthen the sphere of action of single blower fan, it is to increase efficiency of dust collection.
4.The method of reduction tunnel furnace dust discharge according to claim 3, it is characterized in that: described gas blower go out air port and the angled �� of kiln length direction, �� is 52 �㡫63 ��, often organize gas blower 0.23��0.37 times that goes out that air quantity is that wicket cooling blower goes out air quantity.
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| CN201410202030.0A CN103968662B (en) | 2014-05-13 | 2014-05-13 | A kind of tunnel furnace reducing dust discharge and the method reducing dust discharge thereof |
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| CN201410202030.0A CN103968662B (en) | 2014-05-13 | 2014-05-13 | A kind of tunnel furnace reducing dust discharge and the method reducing dust discharge thereof |
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| CN103968662B true CN103968662B (en) | 2016-06-01 |
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| CN105174702A (en) * | 2015-08-27 | 2015-12-23 | 南京熊猫电子股份有限公司 | Liquid crystal glass production workshop and FFU control method in workshop |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57124684A (en) * | 1980-12-12 | 1982-08-03 | Buchtal Gmbh | Cooling zone |
| CN202547355U (en) * | 2012-05-09 | 2012-11-21 | 郑州京华耐火材料实业有限公司 | High-temperature tunnel kiln |
| CN202613964U (en) * | 2011-12-30 | 2012-12-19 | 东方绿源节能环保工程有限公司 | Novel tunnel kiln |
-
2014
- 2014-05-13 CN CN201410202030.0A patent/CN103968662B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57124684A (en) * | 1980-12-12 | 1982-08-03 | Buchtal Gmbh | Cooling zone |
| CN202613964U (en) * | 2011-12-30 | 2012-12-19 | 东方绿源节能环保工程有限公司 | Novel tunnel kiln |
| CN202547355U (en) * | 2012-05-09 | 2012-11-21 | 郑州京华耐火材料实业有限公司 | High-temperature tunnel kiln |
Non-Patent Citations (1)
| Title |
|---|
| 《3.3m烧结砖隧道窑冷却带气固两相流场模拟》;晏云飞等;《砖瓦》;20140510;第15-17页 * |
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Effective date of registration: 20170711 Address after: 221200, No. 18, Xuanwu Road, Ling Town, Suining County, Xuzhou, Jiangsu Patentee after: Jiangsu run Ling Industrial Co., Ltd. Address before: 224002 No. 1, hope Avenue, Jiangsu, Yancheng City Patentee before: Yangcheng Institute of Technology |
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