CN102875036A - Heat storage type lime rotary kiln - Google Patents
Heat storage type lime rotary kiln Download PDFInfo
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- CN102875036A CN102875036A CN2012104080167A CN201210408016A CN102875036A CN 102875036 A CN102875036 A CN 102875036A CN 2012104080167 A CN2012104080167 A CN 2012104080167A CN 201210408016 A CN201210408016 A CN 201210408016A CN 102875036 A CN102875036 A CN 102875036A
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- kiln
- rotary kiln
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- heat
- blower
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- 235000008733 Citrus aurantifolia Nutrition 0.000 title claims abstract description 35
- 235000011941 Tilia x europaea Nutrition 0.000 title claims abstract description 35
- 239000004571 lime Substances 0.000 title claims abstract description 35
- 238000005338 heat storage Methods 0.000 title abstract description 6
- 238000001816 cooling Methods 0.000 claims abstract description 44
- 239000002918 waste heat Substances 0.000 claims abstract description 29
- 239000000446 fuel Substances 0.000 claims abstract description 22
- 238000007599 discharging Methods 0.000 claims abstract description 11
- 239000007789 gas Substances 0.000 claims description 24
- 238000002485 combustion reaction Methods 0.000 claims description 11
- 239000010881 fly ash Substances 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 239000004449 solid propellant Substances 0.000 claims description 2
- 239000003546 flue gas Substances 0.000 abstract description 16
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 15
- 238000001354 calcination Methods 0.000 abstract description 11
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000009826 distribution Methods 0.000 abstract description 3
- 239000002912 waste gas Substances 0.000 abstract description 3
- 101100399296 Mus musculus Lime1 gene Proteins 0.000 description 26
- 239000000463 material Substances 0.000 description 25
- 235000019738 Limestone Nutrition 0.000 description 12
- 239000006028 limestone Substances 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 238000009825 accumulation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000003517 fume Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000011343 solid material Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- HUAUNKAZQWMVFY-UHFFFAOYSA-M sodium;oxocalcium;hydroxide Chemical compound [OH-].[Na+].[Ca]=O HUAUNKAZQWMVFY-UHFFFAOYSA-M 0.000 description 2
- 239000005997 Calcium carbide Substances 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- CLZWAWBPWVRRGI-UHFFFAOYSA-N tert-butyl 2-[2-[2-[2-[bis[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]amino]-5-bromophenoxy]ethoxy]-4-methyl-n-[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]anilino]acetate Chemical compound CC1=CC=C(N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)C(OCCOC=2C(=CC=C(Br)C=2)N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)=C1 CLZWAWBPWVRRGI-UHFFFAOYSA-N 0.000 description 1
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Classifications
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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
- Y02P40/40—Production or processing of lime, e.g. limestone regeneration of lime in pulp and sugar mills
Landscapes
- Muffle Furnaces And Rotary Kilns (AREA)
- Furnace Details (AREA)
Abstract
The invention relates to a heat storage type lime rotary kiln which comprises two kiln bodies, two preheating chambers, a kiln tail hood, kiln heads, a cooling chamber, burners, air blowers, a cooling fan, feeding systems and waste gas discharging systems. The two kiln bodies are in left-right symmetric arrangement or nonsymmetric arrangement, one end of each kiln body is connected with the cooling chamber through the kiln tail hood, the other end of each kiln body is connected with an outlet of each preheating chamber through a feeding chamber, inlets of the two preheating chamber are respectively connected with a feeding port and a three-way valve through a three-way pipe, one way of the three-way valve is connected with the corresponding air blower through an air pipeline, the other way of the three-way valve is connected with the corresponding waste gas discharging system, each kiln body is provided with a waste heat recovering machine, and air outlets of the waste heat recovering machines are connected to the cooling chamber or a fuel preheater. The two heat storage type preheating chambers and the two kiln bodies on the left and right sides, so that flue gas waste heat and lime finished product waste heat generated by the rotary kiln during calcining can be fully utilized, and energy consumption is lowered. The burners are arranged at multiple positions, temperature distribution of burning is more uniform, temperature gradient is lowered, and NOx content in flue gas can be effectively lowered.
Description
Technical field
The invention belongs to the production unit technical fields such as chemical industry, metallurgy, building materials, relate to a kind of lime production device, be specifically related to a kind of heat accumulating type lime rotary kiln.
Background technology
Lime rotary kiln is a kind of equipment of producing lime, with respect to shaft furnace, beam type kiln, sleeve kiln etc., have the characteristics such as the activity of lime that can calcine the small particle size Wingdale, fire high (activity degree can reach 350-400ml), high, easy to operate, the easy maximization production of mechanization degree, obtained a large amount of application in China lime production field.According to statistic data in 2010, the lime of rotary kiln production accounted for 47.84% of quickened lime (more than the activity degree 300ml) production capacity.
But the energy consumption of rotary kiln is large than other limestone kiln, and its power consumption is 40kWh/t, and hear rate is 5000～5300kJ/kg, and thermo-efficiency is 55～65%.High energy consumption has limited the development of runner ash furnace.Under the overall background of energy-saving and emission-reduction, the energy consumption that reduces rotary kiln seems particularly important.
Summary of the invention
The purpose of this invention is to provide a kind of lime rotary kiln, by accumulation of heat, warm-up combustion-supporting air in the preheating chamber, take full advantage of the waste heat of lime production, reduce rotary kiln energy consumption and lime production cost, increase economic efficiency.
A kind of heat accumulating type lime rotary kiln of the present invention comprises kiln hood, cooling room, kiln hood, gas blower, cooling blower, feeding system and exhaust emission system, and kiln hood is provided with burner.The heat accumulating type lime rotary kiln is provided with two kiln bodies and two preheating chambers, and every kiln body is divided into 2 ~ 3 sections.Two kiln bodies are symmetrically arranged respectively or asymmetric arrangement, and one of the kiln body is connected with cooling room by the kiln hood, and the other end is connected with the outlet of preheating chamber by feed compartment respectively.The entrance of preheating chamber is connected with T-valve with opening for feed respectively by Y-tube.The other two-way of T-valve, the airline of leading up to is connected with gas blower, and another road is connected with exhaust emission system.Cooling blower is connected to the bottom of cooling room, and cooling room is provided with discharge port, and discharge port is connected with discharging equipment.Three outlet junctions of T-valve are provided with valve plate, and opening for feed is provided with valve plate.
The kiln body is provided with waste-heat recoverer and induced draft fan, and waste-heat recoverer is tube structure, is positioned at the outside of every section kiln body, the coaxial installation of kiln body of waste-heat recoverer and rotary kiln.Described waste-heat recoverer is provided with gas inlet and airout, and gas inlet is positioned at the both sides of waste-heat recoverer.The outlet of waste-heat recoverer is connected to the entrance of induced draft fan (20) by pipeline, the outlet of induced draft fan is connected to the airline of middle part, fuel preheater (21) or the coal-grinding stoving oven of cooling room (12).The entrance of burner (10) is connected with fuel conduit by fuel preheater.
Rotary kiln is single pressure system or two pressure system.The exhaust emission system of dual pressure system comprises fly-ash separator, induced draft fan and chimney, and the gas blower of the left and right sides is connected with T-valve by airline respectively.The exhaust emission system of single pressure system is provided with fly-ash separator and chimney, and roots blower replaces gas blower, and the outlet of roots blower is connected respectively to the T-valve at preheating chamber top, both sides by airline.
Burner is geseous fuel burner or liquid fuel burner or solid fuel burner.
Rotary kiln is used for the calcining of solid materials or the reduction of solid materials.Solid materials is the raw material of Wingdale, rhombspar, pellet, iron ore or calcium carbide production, manufacture of cement.The heat accumulating type lime rotary kiln is the Multi-functional standard platform, is used for various industrial uses.
Rotary kiln has and flows calcining zone and adverse current calcining zone, and integral body is symmetrically arranged, and the centre connects with the kiln hood.Two preheating chambers alternately carry out heat exchange with flue gas and combustion air.At kiln body head burner is set, can adopts single-point or multiple spot to arrange burning, limestone material is calcined, simultaneously even kiln temperature field keeps kiln internal combustion atmosphere suitable.Cooling room sodalime and cooling air countercurrent flow, the warm air after the heating mix with flue gas through fume side kiln body and enter preheating chamber.The material loading of limestone material, the flue gas of discharging and the combustion air that enters directly pass through the preheating chamber top, and wherein limestone material is as heat storage, by flue gas heating and preheating cooling air.When entering the air cooling material, one side preheating chamber adds simultaneously warm air, when the fuel mix of warm air and the ejection of this side burner is burnt, in addition on one side preheating chamber by exhaust gas emission with the waste heat recovery in the flue gas to material, the fuel of burner ejection can be superfluous and not enough according to processing requirement, requirement according to technique can arrange auxiliary burning nozzle at kiln hood place, at kiln hood the combustion air passage is set.
At kiln body head burner is set, can single-point or multiple spot arrange burning, limestone material is calcined, even kiln temperature field keeps kiln internal combustion atmosphere suitable simultaneously.Cooling room sodalime and cooling air countercurrent flow, the warm air after the heating and flue gas are mixed in the smoke evacuation side rotary kiln, enter blowdown system through preheater again.The material loading of limestone material, the flue gas of discharging and the combustion air that enters directly pass through the preheating chamber top, and wherein limestone material is as heat storage, by flue gas heating and preheated air.
Heat accumulating type lime rotary kiln of the present invention is by two preheating chambers and two rotary kiln bodies about arranging, and utilizes in the preheating chamber material to make heat storage, alternately absorbs accumulation of heat and preheated air exothermic process.Material in one side kiln body burner combustion calcining kiln body during calcining, the flue gas of generation to the preheating chamber preheating material, carries out accumulation of heat through opposite side kiln body.Opposite side kiln body burning, material is emitted the heat warm-up combustion-supporting air in the preheating chamber, and it is combustion-supporting that the air after the preheating enters the kiln body through the burner of kiln hood.The fume afterheat that rotary kiln is produced in calcining is fully used, and has reduced lime production energy expenditure and lime production cost.The exhanst gas outlet temperature control is at 100-150 ℃, and the lime temperature out is≤100 ℃.Burner is arranged in the kiln hood place, so that limestone material is first by the adverse current preheating, again by also stream calcining, the quality of Effective Raise lime.
Description of drawings
Fig. 1 is heat accumulating type lime rotary kiln schematic flow sheet of the present invention
Fig. 2 is the schematic flow sheet of another embodiment of the present invention;
Fig. 3 is the schematic flow sheet of third embodiment of the invention;
Fig. 4 is the schematic flow sheet of four embodiment of the invention.
Wherein
1-flue gas pipeline, 2-feeding system, 3-opening for feed, 4-preheating chamber, 5-feed compartment, 6-valve plate, 7-airline, 8-gas blower, 9-kiln hood, 10-burner, 11-kiln hood, 12-cooling room, 13-cooling blower, 14-discharge port, 15-discharging equipment, 16-kiln body, 17-T-valve, 18-Y-tube, 19-waste-heat recoverer, 20-induced draft fan, 21-fuel preheater, 22-roots blower, 23-gas inlet, 24-auxiliary burning nozzle, 25-combustion air passage, 26-airout.
Embodiment
The present invention is described in detail below in conjunction with accompanying drawing.
Heat accumulating type lime rotary kiln of the present invention comprises two kiln bodies 16, two preheating chambers 4, kiln hood 11, cooling room 12, burner 10, gas blower 8, kiln hood 9, cooling blower 13, feeding system 2 and exhaust emission systems as shown in Figure 1, is provided with burner 10 in the kiln hood.Two kiln bodies are symmetrically arranged, and one of the kiln body is connected with cooling room by kiln hood 11, and the other end is passed through respectively feed compartment 5 and is connected with the outlet of preheating chamber 4.The entrance of preheating chamber is connected with T-valve with opening for feed 3 respectively by Y-tube 18 and is connected.The airline 7 of leading up in the other two-way of T-valve links to each other with gas blower, and another road is connected with exhaust emission system; Cooling blower is connected to the bottom of cooling room, and cooling room is provided with discharge port 14, and discharge port is connected with discharging equipment 15.Three mouths of T-valve are respectively equipped with valve plate 6, and opening for feed is provided with valve plate.The heat accumulating type lime rotary kiln is two pressure systems, and gas discharge system comprises induced draft fan, fly-ash separator and chimney.The gas blower 8 of the left and right sides is connected with T-valve 17 by airline respectively.Kiln body 16 is provided with waste-heat recoverer 19 and induced draft fan 20.The entrance of burner 10 is connected with fuel conduit by fuel preheater.Kiln hood 11 is provided with auxiliary burning nozzle 24, and kiln hood is provided with combustion air passage 25.
Rotary kiln is whole for being symmetrically arranged, and is connected by the kiln hood.Preheating chamber 4 upper ends are connected with material feeding distribution device, smoke discharging device and combustion air diffuser, and the lower end connects feed compartment 5.Kiln body 16 heads connect feed compartment 5, and afterbody connects kiln hood 11.Two kiln bodies 16 about kiln hood 11 connects connect cooling room 12 simultaneously.
Limestone material joins the material feeding distribution device at preheating chamber top from feeding system, enter left side preheating chamber 4.Limestone material after being heated in preheating chamber enters left side kiln body 16 through feed compartment 5, and burner carries out multi-point equispaced burning in the kiln body, produces the flue gas of uniform temperature fields, and limestone material is calcined.The lime of firing enters vertical cooling room 12 through kiln hood 11, and waste gas then enters right side kiln body 16, finishes the calcination process of left side Wingdale preheating and rotary kiln.
The cooling air that cooling blower 13 bloats enters cooling room 12, with the heat exchange of high temperature lime counter current contact, lime is cooled to≤100 ℃ after by discharge port 14 and discharging equipment 15 kiln discharges.Air is heated by kiln hood 11 and mixes with flue gas behind the calcining materials of left side, enters right side preheating chamber 4 through right side kiln body 16.Carry out heat exchange reverse contact of right side preheating chamber and the limestone material of whereabouts, enter atmosphere by exhaust emission system after the flue-gas temperature of leaving preheating chamber is down to 100-150 ℃, finish the heat-accumulating process of rotary kiln.Both sides kiln body 16, preheating chamber 4 hocket accumulation of heat and preheating and calcining process are carried out blocked operation by the valve plate action of each pipeline, and automatization control is determined according to processing condition the pitch time of switching.
Another embodiment of the present invention as shown in Figure 2, kiln body 16 is provided with waste-heat recoverer 19 and induced draft fan 20.Waste-heat recoverer 19 is tube structure, is positioned at the outside of every section kiln body of rotary kiln, with the coaxial installation of kiln body.Waste-heat recoverer is provided with gas inlet 23 and airout 26, gas inlet 23 be positioned at waste-heat recoverer both sides, the outlet of waste-heat recoverer is connected to the entrance of induced draft fan 20 by pipeline, the outlet of induced draft fan is connected to the middle part of cooling room 12.Reclaim the heat that the external wall of kiln distributes with waste-heat recoverer, enter cooling room by the air after the waste-heat recoverer preheating, continue to add warm air with the heat of chilled product.At cooling room 12, through cooling blower 13 enter cooling air and after the preheating that induced draft fan 20 enters air converge, together leave cooling room, through kiln body 16 behind preheating chamber 4 preheating materials to the exhaust emission system discharging.
The third embodiment of the present invention as shown in Figure 3, induced draft fan outlet is connected to fuel preheater 21, to burner 10, the heat that reclaims with waste-heat recoverer is by fuel preheater 21 pre-heating fuels through fuel preheater for fuel conduit.
Embodiment 4
The 4th kind of embodiment of the present invention as shown in Figure 4, rotary kiln is single pressure system, exhaust emission system is provided with fly-ash separator and chimney in single pressure system, roots blower 22 replaces the gas blower air blast.The outlet of roots blower is connected respectively to the T-valve 17 at preheating chamber top, both sides by airline 7, whole equipment alternation, when entering the air cooling material, one side preheating chamber adds simultaneously warm air, when the fuel mix of warm air and the ejection of this side burner is burnt, in addition on one side preheating chamber by exhaust gas emission with the waste heat recovery in the flue gas to material, because fume side does not have the suction function of induced draft fan, therefore the air-flow in the kiln drives by the impellent of roots blower entirely, carry out not ventilating before the commutation process at equipment at every turn, after commutation finishes, ventilate again.
Claims (5)
1. heat accumulating type lime rotary kiln, comprise kiln hood (11), cooling room (12), kiln hood (9), gas blower (8), cooling blower (13), feeding system (2) and exhaust emission system, kiln hood is provided with burner (10), it is characterized in that: described heat accumulating type lime rotary kiln is provided with two kiln bodies (16) and two preheating chambers (4), and every kiln body is divided into 2 ~ 3 sections; Two kiln bodies are symmetrically arranged respectively or asymmetric arrangement, and one of the kiln body is connected with cooling room by kiln hood (11), and the other end is passed through respectively feed compartment (5) and is connected with the outlet of preheating chamber; The entrance of preheating chamber is connected 17 with opening for feed (3) with T-valve respectively by Y-tube (18)) be connected, the airline (7) of leading up in the other two-way of T-valve is connected with gas blower, and another road is connected with exhaust emission system; Cooling blower is connected to the bottom of cooling room, and cooling room is provided with discharge port (14), and discharge port is connected with discharging equipment; Three outlet junctions of T-valve are provided with valve plate (6), and opening for feed is provided with valve plate.
2. heat accumulating type lime rotary kiln according to claim 1, it is characterized in that: described kiln body (16) is provided with waste-heat recoverer (19) and induced draft fan (20), described waste-heat recoverer is tube structure, is positioned at the outside of every section kiln body, the coaxial installation of kiln body of waste-heat recoverer and rotary kiln; Described waste-heat recoverer is provided with gas inlet (23) and airout (26), and gas inlet is positioned at the both sides of waste-heat recoverer; The outlet of waste-heat recoverer is connected to the entrance of induced draft fan (20) by pipeline, the outlet of induced draft fan is connected to the airline of middle part, fuel preheater (21) or the coal-grinding stoving oven of cooling room (12); The entrance of described burner (10) is connected with fuel conduit by fuel preheater.
3. heat accumulating type lime rotary kiln according to claim 1 and 2, it is characterized in that: described rotary kiln is single pressure system or two pressure system; The exhaust emission system of described pair of pressure system comprises fly-ash separator, induced draft fan and chimney, and the gas blower of the left and right sides (8) is connected with T-valve (17) by airline respectively; The exhaust emission system of described single pressure system is provided with fly-ash separator and chimney, and roots blower (22) replaces gas blower (8), and the outlet of described roots blower is connected respectively to the T-valve (17) at preheating chamber top, both sides by airline (7).
4. heat accumulating type lime rotary kiln according to claim 1, it is characterized in that: described burner is geseous fuel burner or liquid fuel burner or solid fuel burner.
5. heat accumulating type lime rotary kiln according to claim 1, it is characterized in that: described kiln hood (11) is provided with auxiliary burning nozzle (24), and kiln hood is provided with combustion air passage (25).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210408016.7A CN102875036B (en) | 2012-10-24 | 2012-10-24 | Heat storage type lime rotary kiln |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210408016.7A CN102875036B (en) | 2012-10-24 | 2012-10-24 | Heat storage type lime rotary kiln |
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| CN102875036B CN102875036B (en) | 2014-02-12 |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103335514A (en) * | 2013-06-05 | 2013-10-02 | 石家庄新华能源环保科技股份有限公司 | Rotary kiln device provided with energy recovery equipment |
| CN103332673A (en) * | 2013-06-05 | 2013-10-02 | 石家庄新华能源环保科技股份有限公司 | Heat-accumulating type semi-coke rotary kiln |
| CN103332873A (en) * | 2013-06-05 | 2013-10-02 | 石家庄新华能源环保科技股份有限公司 | Parallel-flow heat accumulating type lime rotary kiln |
| CN103482889A (en) * | 2013-09-16 | 2014-01-01 | 石家庄新华能源环保科技股份有限公司 | Heat accumulating type material calcinating device |
| CN103954408A (en) * | 2014-03-31 | 2014-07-30 | 舞阳钢铁有限责任公司 | Maintenance process for online fast leakage detection for air pre-heater |
| CN104004548A (en) * | 2013-02-22 | 2014-08-27 | 石家庄新华能源环保科技股份有限公司 | Coal gasification production device |
| CN104923042A (en) * | 2015-06-01 | 2015-09-23 | 石家庄新华能源环保科技股份有限公司 | Dividing wall rotary kiln device for flue gas dehydration |
| CN105110659A (en) * | 2015-08-28 | 2015-12-02 | 桂林昌鑫机械制造有限公司 | Equipment and method for burning limestone |
| CN105238939A (en) * | 2015-11-10 | 2016-01-13 | 李鹏飞 | Pyrogenic process arsenic removing method and device |
| CN105417972A (en) * | 2015-12-22 | 2016-03-23 | 赵艳枫 | Tooth roller lime shaft furnace with internal combustion chamber |
| WO2016150100A1 (en) * | 2015-03-24 | 2016-09-29 | 石家庄新华能源环保科技股份有限公司 | Heat-accumulating lime rotary kiln |
| CN106048211A (en) * | 2016-07-15 | 2016-10-26 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Reduction roasting process for iron ore rotary kiln |
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| CN114353513A (en) * | 2021-12-01 | 2022-04-15 | 佛山市天禄智能装备科技有限公司 | Rotary kiln waste gas recovery method and system |
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| US4259081A (en) * | 1977-04-30 | 1981-03-31 | Metallgesellschaft Aktiengesellschaft | Process of calcining limestone in a rotary kiln |
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| CN104004548A (en) * | 2013-02-22 | 2014-08-27 | 石家庄新华能源环保科技股份有限公司 | Coal gasification production device |
| CN104004548B (en) * | 2013-02-22 | 2015-09-23 | 石家庄新华能源环保科技股份有限公司 | A kind of gasification production equipment |
| CN103332673A (en) * | 2013-06-05 | 2013-10-02 | 石家庄新华能源环保科技股份有限公司 | Heat-accumulating type semi-coke rotary kiln |
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Address after: 051431 Hebei city of Shijiazhuang province Luancheng douyu town equipment manufacturing base of Xinhua Road No. 6 (douyu West Middle School) Applicant after: Shijiazhuang Xinhua Energy and Environmental Protection Technology Co., Ltd. Address before: 051431 Hebei city of Shijiazhuang province Luancheng douyu town equipment manufacturing base of Xinhua Road No. 6 (douyu West Middle School) Applicant before: Shijiazhuang Xinhua Industrial Furnace Co., Ltd. |
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