CN207793163U - A kind of self-loopa tunnel type carbonizing kiln - Google Patents

A kind of self-loopa tunnel type carbonizing kiln Download PDF

Info

Publication number
CN207793163U
CN207793163U CN201721681320.3U CN201721681320U CN207793163U CN 207793163 U CN207793163 U CN 207793163U CN 201721681320 U CN201721681320 U CN 201721681320U CN 207793163 U CN207793163 U CN 207793163U
Authority
CN
China
Prior art keywords
carbonizing kiln
loopa
self
connect
tunnel type
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 - Fee Related
Application number
CN201721681320.3U
Other languages
Chinese (zh)
Inventor
卢建翔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujian Mountain Bamboo Cycle Technology Co Ltd
Original Assignee
Fujian Mountain Bamboo Cycle Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujian Mountain Bamboo Cycle Technology Co Ltd filed Critical Fujian Mountain Bamboo Cycle Technology Co Ltd
Priority to CN201721681320.3U priority Critical patent/CN207793163U/en
Application granted granted Critical
Publication of CN207793163U publication Critical patent/CN207793163U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/10Biofuels, e.g. bio-diesel
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/10Reduction of greenhouse gas [GHG] emissions
    • Y02P10/143Reduction of greenhouse gas [GHG] emissions of methane [CH4]
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/10Process efficiency
    • Y02P20/129Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines

Abstract

The utility model discloses a kind of self-loopa tunnel type carbonizing kilns, are related to wood processing field, including:Carbonizing kiln ontology and the circulatory system being connect with the carbonizing kiln ontology, wherein, the carbonizing kiln ontology includes preheating and drying area, pyrolysis zone, zoneofoxidation, reducing zone and cooling zone, and the circulatory system includes residual neat recovering system, combustion gas multiplex system and exhaust treatment system.Using above-mentioned technical proposal, due to increasing residual neat recovering system and combustion gas multiplex system on the basis of carbonizing kiln, improve the conversion ratio of charcoal, 35% can be reached, simultaneously because setting exhaust treatment system, exhaust emissions can reach Natural gas standard, realize cleaning, environmental protection production, at the same also achieve charcoal processing it is continuous, efficiently, automated production.

Description

A kind of self-loopa tunnel type carbonizing kiln
Technical field
The utility model is related to wood processing field, more particularly to a kind of self-loopa tunnel type carbonizing kiln.
Background technology
Currently, China's biomass charcoal making equipment is very backward, mostly still based on earth kiln, small scale, production cycle be long, Environment protection emission is not up to standard, labour's consumption is big, properties of product are unstable, benefit is low, and the technique needs additional combustion timber to make For fuel, but mass energy is discharged into the form of black smoke in air in process of production, has not only polluted air but also waste of energy.In environmental protection Increasingly under stringent environment, some local governments make a decision sincerely close earth kiln taboo make charcoal, though these measures for the moment solve environment Disposal of pollutants problem, single biomass castoff forbid charcoal processing to not only limit comprehensive utilization of resources as a kind of renewable resource, Also the income level of the mountain area people is made to receive restriction.
To change the situation of biomass charcoal making equipment backwardness conscientiously and solving the lance of biomass resource development and protection Shield realizes that the efficient and environmental objective of charcoal processing production is unified, some enterprises have developed machine-made carbon on the basis of traditional earth kiln The unified recovery processing of flue gas may be implemented in kiln, tentatively solves the problems, such as that black smoke environment protection emission, single equipment belong to batch production Equipment, the black smoke generated during charcoal processing are handled using spray process, and environmental protection treatment is of high cost, and the energy does not make full use of.No Pipeclay kiln or mechanism charcoal kiln, process parameter control rely primarily on the experience control of firing master worker, by " eye sight nasil ", obtain Charcoal rate is low, and generally 20% or so, and unstable product quality, yield are also relatively low.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of self-loopa tunnel type carbonizing kilns, solve in the prior art Charcoal kiln not environmentally, the low technical problem of conversion ratio.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is:
A kind of self-loopa tunnel type carbonizing kiln, including:Carbonizing kiln ontology and the cyclic system being connect with the carbonizing kiln ontology System, wherein the carbonizing kiln ontology includes preheating and drying area, pyrolysis zone, zoneofoxidation, reducing zone and cooling zone, the cyclic system System includes residual neat recovering system, combustion gas multiplex system and exhaust treatment system.
Wherein, the residual neat recovering system include more heat exchanging water pipes being arranged around cooling zone and with heat exchanging water pipe's phase Water softening tank even, the water softening tank is connected to waste heat boiler, the steam (vapor) outlet of the waste heat boiler respectively with steam distributor and Steam atomization spout connection in the cooling zone is set, and the gas inlet of the waste heat boiler connects with the combustion gas multiplex system It connects, the exhanst gas outlet of the waste heat boiler is connect with the exhaust treatment system.
Wherein, the combustion gas multiplex system include be connected to the preheating and drying area, the pyrolysis zone, the reducing zone and The biological fuel gas exhaust tube of the cooling zone and the high temperature draught fan being connect with the biological fuel gas exhaust tube, the high temperature Air-introduced machine is connect with low NO, and biological fuel gas is evacuated to low NO, and burning drum is connected on low NO Wind turbine, after biological fuel gas mixes in low NO with air, into the burning boiler being connect with the low NO In fully burn, burning boiler exhanst gas outlet connect flue gas heat-exchange unit, the exhanst gas outlet of the flue gas heat-exchange unit with it is described Residual neat recovering system connect, the hot air outlet of the flue gas heat-exchange unit and be arranged the zoneofoxidation hot-air blast pipe company It connects.
Wherein, the exhaust treatment system includes air-introduced machine and the deduster that is connected on fan inlet, deduster Gas inlet connect roller drying machine, the gas inlet of the roller drying machine connects the residual neat recovering system, from described The flue gas of residual neat recovering system discharge is gone out after roller drying machine drying and deduster dedusting by being connected to air-introduced machine The chimney in air port is discharged.
Wherein, preheating and drying area front end is provided with feeding seal cabin, is arranged at the both ends in the feeding seal cabin There is feeding seal gate;Discharging sealed compartment is set in the cooling zone rear end, in being provided at both ends with out for the discharging sealed compartment Expect sealed gate.
Specifically, the feeding seal gate and the discharging sealed gate are respectively twice.
Wherein, further include cycle carriage track, the cycle carriage track includes carbonizing track, trailer return trajectory and setting Set the feeder carts track and discharging carriage track, the charing rail at the charing track and trailer return trajectory both ends Road is arranged in the carbonizing kiln ontology, feeder carts track one end is provided with feed zone, in the discharging trailer rail The one end in road is provided with discharge zone.
Wherein, further include device for monitoring temperature, the device for monitoring temperature includes multiple is arranged in the intrinsic K of carbonizing kiln Type thermocouple.
Wherein, multiple burners are installed in the zoneofoxidation both sides, have been connected on described burner Stove fuel tank.
Specifically, the quantity of described burner is 2,4 or 6.
Using above-mentioned technical proposal, due to increasing residual neat recovering system and combustion gas multiplexing system on the basis of carbonizing kiln System, improves the conversion ratio of charcoal, can reach 35%, simultaneously because setting exhaust treatment system, exhaust emissions can reach naturally Gas standard realizes cleaning, environmental protection production, at the same also achieve charcoal processing it is continuous, efficiently, automated production.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model self-loopa tunnel type carbonizing kiln;
Fig. 2 is the structural schematic diagram of carbonizing kiln ontology in the utility model.
In figure, 1- carbonizing kiln ontologies, 101- feeding seal gates, 102- discharging sealed gates, the 2- circulatory systems, 201- lifes Substance combustible gas exhaust tube, 202- high temperature draught fans, 203- low NOs, 204- combustion blowers, 205- burning boilers, 206- Flue gas heat-exchange unit, 207- tunnel oven wind turbines, 208- exhanst gas outlets, 209- hot air outlets, 210- hot-air blast pipes, more than 211- Heat boiler, 212- water softening tanks, 213- water circulating pumps, 214- boiler feed pumps, 215- steam distributors, 216- dedusters, 217- Roller drying machine, 218- chimneys, 219- open burner, 220-, 221-, and 3- carbonizes carriage track, 301- feeder carts tracks, 302- discharging carriage tracks, 303- feed zones, the discharge zones 304-, 305- trailer return trajectories.
Specific implementation mode
Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings.It should be noted that The explanation of these embodiments is used to help to understand the utility model, but does not constitute the restriction to the utility model.This Outside, technical characteristic involved in the various embodiments of the present invention described below is as long as they do not conflict with each other It can be combined with each other.
As the first embodiment of the utility model, a kind of self-loopa tunnel type carbonizing kiln is proposed, as shown in Figure 1, 2, packet It includes:Carbonizing kiln ontology 1 and the circulatory system 2 being connect with carbonizing kiln ontology 1, wherein carbonizing kiln ontology 1 include preheating and drying area, Pyrolysis zone, zoneofoxidation, reducing zone and cooling zone, preheating and drying area, pyrolysis zone, zoneofoxidation, reducing zone and cooling zone are linked in sequence, It is provided with charing carriage track 3 wherein, the both ends of charing carriage track 3 are respectively set feeder carts track 301 and are dragged with discharging Track road 302, and feed zone 303 is provided with before feeder carts track 301, it is provided with out after the carriage track 302 that discharges Expect area 304, in order to enable carriage track to automate cycle operation, feeder carts track 301 and discharging carriage track 302 it Between be provided with trailer return trajectory 305.Trailer feeds in feed zone 303, later by feeder carts track 301 to charing Carriage track 3 moves, and when trailer reaches charing carriage track 3, is arranged in charing carriage track 3 and preheating and drying area front end Twice feeding seal gate 101 is opened successively, allow trailer by and the temperature leak in carbonizing kiln ontology 1 will not be made excessive, After trailer is by carbonizing carriage track 3, setting charing carriage track 3 and two way discharging device sealed gate 102 of cooling zone rear end according to Secondary unlatching allows trailer to sail out of carbonizing kiln ontology 1, and the temperature in carbonizing kiln ontology 1 will not be excessively lost in.By going out after trailer Expect that carriage track 302 is moved to discharge zone 304, after discharge zone 304 is finished down charcoal material, trailer passes through trailer return trajectory 305 Feed zone 303 is returned to be fed again.
Biological fuel gas exhaust tube 201 is set in preheating and drying area, and by adjusting biological fuel gas capacity, control is pre- Heated drying area temperature is within the scope of 60 to 180 DEG C.
Continue as shown in Figure 1, 2, the circulatory system 2 includes residual neat recovering system, combustion gas multiplex system and exhaust treatment system. Preheating and drying area, pyrolysis zone, reducing zone and cooling zone biological fuel gas exhaust tube 201 and with biological fuel gas exhaust tube The high temperature draught fan 202 of 201 connections, high temperature draught fan 202 are connect with low NO 203, the life that will be generated in carbonization process Substance combustible gas is evacuated to low NO 203 from preheating and drying area, pyrolysis zone, reducing zone and cooling zone, on low NO 203 It is connected with combustion blower 204, air is pumped into low NO 203 by combustion blower 204, and biological fuel gas is in low nitrogen burning After being mixed with air in device 204, into fully burning generates high temperature cigarette in the burning boiler 205 being connect with low NO 204 Gas, burning boiler 205 exhanst gas outlet connect flue gas heat-exchange unit 206, high-temperature flue gas in flue gas heat-exchange unit 206 with tunnel oven The cold air heat exchange that wind turbine 207 is extracted out generates high temperature air and flue gas, and high temperature air is by hot air outlet 209 with setting in oxygen The hot-air blast pipe 210 for changing area connects.High temperature air is used as oxidant in zoneofoxidation, participates in biomass oxidation reaction.
Flue gas is connect by exhanst gas outlet 208 with waste heat boiler 211, and flue gas carries out waste heat recovery in waste heat boiler 211, The water inlet of waste heat boiler 211 is connect with water softening tank 212, and water softening tank 212 is connected to the heat exchanging water pipe 213 for being arranged in cooling zone, Water softening tank 212 has soft water to fill into always, is on the one hand recycled soft water by heat exchanging water pipe 213 by water circulating pump 213, separately On the one hand soft water input waste heat boiler 211 is exchanged heat with flue gas by boiler feed pump 214, what waste heat boiler 211 generated Steam largely enters steam distributor 215, and sub-fraction is connected to the steam atomization spout of cooling zone, logical according to temperature conditions Enter appropriate steam reduction reaction and generate part biological matter combustion gas, and reaches cooling purpose.Flue gas is by logical after waste heat boiler 211 Deduster 216 and 217 dedusting of roller drying machine drying are crossed, cleaning of off-gas is discharged from chimney 218 finally by air-introduced machine.
It is provided with K-type thermocouple every 2 to 4 meters in carbonizing kiln ontology 1,4 to 8 meters are provided with pressure sensor, with Realize the on-line monitoring and adjusting of technological parameter.
The import both sides of zoneofoxidation are equipped with 2 to 4 and open burner 219, and fuel is connected to by opening stove fuel channel Tank 221 lights a fire when for opening stove and ignites, if being equipped with heated dry air blast pipe 210, hot-air at the top of zoneofoxidation and both sides Blast pipe is wrapped up using thermal insulation material, to reduce the thermal losses of hot-air on the way.Temperature is carried out by hot-air blast pipe 210 Degree is adjusted, and makes zoneofoxidation temperature between 600 DEG C to 950 DEG C.
After adopting the above scheme, the application has the following advantages:
(1) it uses biomass to carbonize tunnel oven from heat supply, overturns traditional earth kiln charcoal processing pattern, it is continuous, high to realize charcoal processing Effect, automated production;
(2) the biological fuel gas centralized collection that charcoal processing process generates is burnt using the special low NO of biomass, tail gas Discharge can reach Natural gas standard, realize cleaning, environmental protection production;
(3) biomass carbonizes the online Centralizing inspections of technological parameters such as temperature, the pressure of tunnel oven, technology controlling and process essence from heat supply Degree is high, and it is high to obtain charcoal rate, and up to 35%, product quality is stablized;
(4) using the soft water of waste heat boiler as recirculated cooling water, waste heat efficiently utilizes for cooling zone;
(5) biomass resource classified utilization can also produce steam energy in addition to traditional charcoal product, realize that resource is comprehensive It closes and utilizes.
The embodiment of the utility model is explained in detail above in association with attached drawing, but the utility model is not limited to be retouched The embodiment stated.For a person skilled in the art, right in the case where not departing from the utility model principle and spirit These embodiments carry out a variety of change, modification, replacement and modification, still fall in the scope of protection of the utility model.

Claims (10)

1. a kind of self-loopa tunnel type carbonizing kiln, which is characterized in that including:It carbonizing kiln ontology and is connect with the carbonizing kiln ontology The circulatory system, wherein the carbonizing kiln ontology includes preheating and drying area, pyrolysis zone, zoneofoxidation, reducing zone and cooling zone, institute It includes residual neat recovering system, combustion gas multiplex system and exhaust treatment system to state the circulatory system.
2. self-loopa tunnel type carbonizing kiln according to claim 1, it is characterised in that:The residual neat recovering system includes setting The water softening tank set the more heat exchanging water pipes around cooling zone and be connected with heat exchanging water pipe, the water softening tank connect with waste heat boiler Logical, the steam (vapor) outlet of the waste heat boiler connects with steam distributor and the steam atomization spout being arranged in the cooling zone respectively Connect, the gas inlet of the waste heat boiler is connect with the combustion gas multiplex system, the exhanst gas outlet of the waste heat boiler with it is described Exhaust treatment system connects.
3. self-loopa tunnel type carbonizing kiln according to claim 1, it is characterised in that:The combustion gas multiplex system includes connecting Be connected on the preheating and drying area, the pyrolysis zone, the reducing zone and the cooling zone biological fuel gas exhaust tube and with institute The high temperature draught fan of biological fuel gas exhaust tube connection is stated, the high temperature draught fan is connect with low NO, by biomass fuel Gas is evacuated to low NO, is connected with combustion blower on low NO, biological fuel gas in low NO with sky After gas mixing, into fully burning in the burning boiler being connect with the low NO, connect in the exhanst gas outlet of burning boiler Flue gas heat-exchange unit is connect, the exhanst gas outlet of the flue gas heat-exchange unit is connect with the residual neat recovering system, the flue gas heat-exchange unit Hot air outlet is connect with the hot-air blast pipe for being arranged in the zoneofoxidation.
4. self-loopa tunnel type carbonizing kiln according to claim 1, it is characterised in that:The exhaust treatment system includes drawing The gas inlet of wind turbine and the deduster being connected on fan inlet, deduster connects roller drying machine, and the roller dries The gas inlet of dry machine connects the residual neat recovering system, and the flue gas being discharged from the residual neat recovering system is dried by the roller After dry machine drying and deduster dedusting, the chimney by being connected to fan out draft is discharged.
5. self-loopa tunnel type carbonizing kiln according to claim 1, it is characterised in that:It is set in preheating and drying area front end It is equipped with feeding seal cabin, feeding seal gate is provided at both ends in the feeding seal cabin;It is arranged in the cooling zone rear end Discharge sealed compartment, and discharging sealed gate is provided at both ends in the discharging sealed compartment.
6. self-loopa tunnel type carbonizing kiln according to claim 5, it is characterised in that:The feeding seal gate and described The sealed gate that discharges is respectively twice.
7. self-loopa tunnel type carbonizing kiln according to claim 1, it is characterised in that:Further include cycle carriage track, institute Cycle carriage track is stated to include charing track, trailer return trajectory and be arranged in the charing track and the trailer return trajectory The feeder carts track at both ends and discharging carriage track, the charing track setting in the carbonizing kiln ontology, it is described into Material carriage track one end is provided with feed zone, and one end of the discharging carriage track is provided with discharge zone.
8. self-loopa tunnel type carbonizing kiln according to claim 1, it is characterised in that:Further include device for monitoring temperature, institute It includes multiple be arranged in the intrinsic K-type thermocouple of carbonizing kiln to state device for monitoring temperature.
9. self-loopa tunnel type carbonizing kiln according to claim 1, it is characterised in that:It is equipped in the zoneofoxidation both sides Multiple burners are connected with furnace lifting fuel tank on described burner.
10. self-loopa tunnel type carbonizing kiln according to claim 9, it is characterised in that:The quantity of described burner It is 2,4 or 6.
CN201721681320.3U 2017-12-06 2017-12-06 A kind of self-loopa tunnel type carbonizing kiln Expired - Fee Related CN207793163U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721681320.3U CN207793163U (en) 2017-12-06 2017-12-06 A kind of self-loopa tunnel type carbonizing kiln

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721681320.3U CN207793163U (en) 2017-12-06 2017-12-06 A kind of self-loopa tunnel type carbonizing kiln

Publications (1)

Publication Number Publication Date
CN207793163U true CN207793163U (en) 2018-08-31

Family

ID=63283122

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721681320.3U Expired - Fee Related CN207793163U (en) 2017-12-06 2017-12-06 A kind of self-loopa tunnel type carbonizing kiln

Country Status (1)

Country Link
CN (1) CN207793163U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111139096A (en) * 2020-01-08 2020-05-12 润电能源科学技术有限公司 Household garbage treatment system and household garbage treatment method thereof
WO2020243994A1 (en) * 2019-06-06 2020-12-10 马天牧 Combined biomass carbonization, heat and electricity production system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020243994A1 (en) * 2019-06-06 2020-12-10 马天牧 Combined biomass carbonization, heat and electricity production system
CN111139096A (en) * 2020-01-08 2020-05-12 润电能源科学技术有限公司 Household garbage treatment system and household garbage treatment method thereof

Similar Documents

Publication Publication Date Title
CN104566487B (en) Totally-enclosed flue gas circulation system of straw gasification stove
CN207793163U (en) A kind of self-loopa tunnel type carbonizing kiln
CN103363811A (en) Combustion method of high-temperature oxygen-mixed flue gas
CN204880187U (en) Biomass fuel is dry device of stoving in advance
CN104279865B (en) A kind of brick-making method of tunnel cave
CN203810456U (en) Multifunctional biomass stove
CN206904985U (en) A kind of domestic garbage gasification CIU
CN106048183B (en) A kind of biomass electricity Dual-energy source heat-treatment furnace
CN205209223U (en) Continuous automatic production foamed ceramics energy saving and emission reduction tunnel cave
CN201637269U (en) Return air energy-saving annular kiln for shale brick production
CN204128354U (en) A kind of brick making device of tunnel cave
CN109485043B (en) System and method for two-stage preparation of activated carbon by biomass
CN205619290U (en) Msw incineration storehouse heat supply system
CN205328940U (en) System for pyrolysis coal
CN106433709A (en) Novel heat accumulating type pyrolysis device and novel heat accumulating type pyrolysis system
CN206073089U (en) It is a kind of to relate to boiler thermodynamic system of the cigarette garbage as fuel
CN108504369A (en) A kind of biomass carbonated destructive distillation purification recovery device and method
CN203810879U (en) Diffusion type coal injection burning furnace of drying machine
CN209836218U (en) Coal-based direct reduction shaft furnace and direct reduction production system
CN203517770U (en) Water-cooled grate biomass boiler
CN211999569U (en) Continuous living beings carbomorphism system of horizontal rotary drum more than two layers
CN214655158U (en) Rotary hearth furnace system for preparing metallized pellets based on oxygen-enriched combustion
CN207963507U (en) A kind of coal base shaft furnace flue gas waste heat recovery system
CN213335593U (en) Steam treatment system for shaft furnace burden gallery
CN210862259U (en) Energy-saving bottom type roasting furnace

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20180831

Termination date: 20191206