CN203881094U - Biomass heat energy supply unit - Google Patents

Biomass heat energy supply unit Download PDF

Info

Publication number
CN203881094U
CN203881094U CN201420277176.7U CN201420277176U CN203881094U CN 203881094 U CN203881094 U CN 203881094U CN 201420277176 U CN201420277176 U CN 201420277176U CN 203881094 U CN203881094 U CN 203881094U
Authority
CN
China
Prior art keywords
heat
main body
dust
heat exchanger
generating set
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.)
Withdrawn - After Issue
Application number
CN201420277176.7U
Other languages
Chinese (zh)
Inventor
王宁
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CN201420277176.7U priority Critical patent/CN203881094U/en
Application granted granted Critical
Publication of CN203881094U publication Critical patent/CN203881094U/en
Anticipated expiration legal-status Critical
Withdrawn - After Issue legal-status Critical Current

Links

Landscapes

  • Solid-Fuel Combustion (AREA)

Abstract

The utility model provides a biomass heat energy supply unit which is mainly composed of a furnace body, a material combustion system, a dust discharge system and a heat exchange system. According to the technical scheme, the biomass heat energy supply unit comprises a unit body, a fuel supply device, a material combustion heat supply system, the heat exchange system and a dust blocking and discharge system. The material combustion heat supply system is arranged in the unit body and is in a two-level heat supply and exchange mode. Heat supply cavities are formed in an air inlet above a combustion chamber of the unit body and in an air inlet at the rear of the combustion chamber respectively, and then a two-level heat supply system is formed. The heat exchange system matched with the material combustion heat supply system is provided with a two-level heat exchanger, the first-level heat supply cavity of the material combustion heat supply system is matched with the two-level heat exchanger of the heat exchange system, the two-level heat supply device of the material combustion heat supply system is matched with the first-level heat exchanger of the heat exchange system, a smoke backflow baffle is arranged between corresponding heat supply channel ports above the two levels of heat exchangers, and the dust blocking and discharge system is arranged on the smoke backflow baffle.

Description

Living beings heat energy supplying machine group
Technical field
It is dry with equipment, particularly a kind of stove and accessory that the utility model belongs to food material.
Background technology
Existing hot-blast furnace body adopts sandwich type structure, and fuel is after combustion chambers burn, and flue gas is directly discharged by exhaust duct.Air is entered by combustion air air inlet by the suction of air-introduced machine, directly discharges by the interlayer between combustion chamber and body of heater to hot-blast outlet.This structure, because flue gas, air can not carry out sufficient heat exchange, causes exhaust gas temperature too high, and at least, more than 200 DEG C, the thermal efficiency is low, and air pollution is serious.
The applicant has declared the utility model patent that name is called " hot-water boiler fume afterheat high efficient heat recovery unit " in April, 2013, (patent No.: ZL201320200734.5), the hot flue gas that this utility model patent combustion furnace produces is transported to case type smoke heat replacing device by pipeline, in smoke heat replacing device, carry out heat exchange with the cold air of another passage, form hot-air, under fan action, be transported to drying chamber with hot blast form by pipeline, complete oven dry task.The weak point of this patented technology is: 1, fume generating furnace and heat transmission equipment split arrange, and pipeline connects, complex structure, and volume is large, takes up room large, and heat energy loss is high, and making and production cost are high.2, taking coal as fuel, only one-level heat exchange, heat utilization rate is still on the low side, and fume emission mouth temperature is still more than 150 degree.3, keep off grey dust exhaust and arrange elementary simple and crudely, fume emission mouth dust still exceeds standard, and does not reach environment protection index requirement.
Summary of the invention
The purpose of this utility model is to provide a kind of living beings heat energy supplying machine group, the problem existing to solve prior art.
The utility model is mainly made up of body of heater, material combustion system, dust-exbaust system, heat-exchange system, and solving the technical scheme that its technical problem adopts is that living beings heat energy supplying machine group comprises generating set main body, fuel supply system, material combustion heat supplying system, heat-exchange system, gear ash dust-exbaust system part; In the front end of generating set main body arranges the fuel feed pipe road, generating set main body that connects fuel supply system, material combustion heat supplying system is set, material combustion heat supplying system is secondary heat-supplying mode ;above generating set main body middle front part combustion chamber He in postmedian air inlet, heat supply chamber and heating plant are set respectively, form secondaryheating system; With the heat-exchange system of material combustion heat supplying system support, secondary heat exchanger is set, the secondary heat exchanger of the one-level heat supply chamber coupling heat-exchange system of material combustion heat supplying system, the first-class heat exchanger of the secondary heating plant coupling heat-exchange system of material combustion heat supplying system, between heat donor passage mouth corresponding above two-stage heat exchanger, smoke backflow baffle plate is set, the gear ash dust exhaust that the grey dust-exbaust system of gear is set at smoke backflow baffle plate inner side edge place, keeps off grey dust-exbaust system and also comprises the removing dust and clearing ash mouth that is arranged on generating set main body top and bottom.
Described generating set main body is cabinet-shaped casing, is made up of generating set main body inwall, the outer ancient piece of jade, round, flat and with a hole in its centre of generating set main body, heat-insulation layer, and heat-insulation layer is arranged between the inside and outside ancient piece of jade, round, flat and with a hole in its centre of main body.
The one-level heat supply chamber of described material combustion heat supplying system is placed in top, combustion chamber, for box typed structure, box-type heat supply chamber upper lateral arranges spiral plug-in part heat exchanger tube, and the chamber gap between heat exchange pipeline is exhaust gases passes, and exhaust gases passes outlet is located at one-level heat supply chamber back side top; The secondary heating plant of material combustion heat supplying system is arranged at unit postmedian, the top of secondary heating plant arranges flue gas collection chamber, flue gas collection chamber front arranges exhaust gases passes import, corresponding some vertically disposed fin heat exchange pipes upper end, flue gas collection chamber below mouth of pipe, the inner chamber of some fin heat exchange pipes forms the exhaust gases passes of secondary heating plant, the corresponding exhanst gas outlet of the lower end mouth of pipe of fin heat exchange pipe.
Described heat-exchange system is made up of two-stage heat exchanger, its first-class heat exchanger is arranged at unit postmedian, heat exchanger is box-type chamber structure, air intlet is arranged at first-class heat exchanger box-type chamber madial wall middle and upper part, in box heat exchanger formula chamber, stand to some fin heat exchange pipes are set, gap between fin heat exchange pipe is hot gas path, box heat exchanger formula chamber arranged outside hot gas collection chamber, hot gas collection chamber is communicated with two-stage heat exchanger, the heat exchanger tube import of its anterior corresponding secondary heat exchanger, secondary heat exchanger is made up of the spiral plug-in part heat exchanger tube of one-level heat supply chamber and horizontally set, the heat outlet of corresponding generating set main body middle front part inner side, heat exchanger tube gas outlet, form two-stage heat-exchange system.
The gear ash dust exhaust of the grey dust-exbaust system of described gear is arranged at smoke backflow baffle plate inner side edge place, generating set main body middle part, comprises, dust block board, dust block board support bar, control arm, connecting rod, inner sealing plate, external seal plate, several dust block boards of horizontally set in smoke backflow passage after smoke backflow baffle plate, dust block board is fixed on dust block board support bar, in the sleeve arranging on generating set main body inwall outside one end insertion smoke backflow passage outside dust block board support bar, inside dust block board support bar, one end adopts bolt to be fixedly connected with one end of connecting rod, the other end of connecting rod and control arm chain connection, the movable fit of the upper and lower two ends of control arm and control arm fixed cover, control arm lower end arranges control arm handle, keep off grey dust exhaust sealing plate is set, inner sealing plate is near smoke backflow baffle plate inner side edge edge, external seal plate is fixed on generating set main body outer wall, in, between external seal plate, establish heat-insulation layer.
The removing dust and clearing ash mouth of the grey dust-exbaust system of described gear is separately positioned on generating set main body middle front part one-level heat supply chamber and generating set main body postmedian secondary heat supply chamber top, below, generating set main body middle front part combustion chamber, the below of the grey dust-exbaust system of generating set main body middle part gear, and generating set main body postmedian secondary heat supply chamber below.
Adopting good effect of the present utility model is the biomass fuel that fuel adopts sustainable energy agricultural crop straw to make, according to heat energy demand, the intelligent fuel of controlling adds, in generating set main body, two-stage heating system and two-stage heat-exchange system are reverse mates combination, realized the abundant recycling of smoke heat energy, smog discharge temperature reaches below 100 degree.The grey dust-exbaust system of gear is set and makes fume emission reach the discharge standard of Environment Protection Policy index request, substantially realized non-pollution discharge.The utlity model has agent structure compactness, take up an area the advantages such as space is little, and system architecture combination integrated level is high, and heat utilization rate is high, environment friendly and pollution-free.
Brief description of the drawings:
Fig. 1 is the utility model structural representation front view.
Fig. 2 is the utility model top view.
Fig. 3 is the utility model contour structures schematic diagram.
Fig. 4 is the utility model left view.
Fig. 5 is that the utility model keeps off grey dust-exbaust system partial sectional view.
In figure: 1 removing dust and clearing ash mouth, 2 air blast air outlets, 3 observe door, 4 fuel feed pipe roads, 5 combustion chambers, 6 generating set main body, 7 inwalls, 8 heat-insulation layers, 9 spiral plug-in part heat exchanger tubes, 10 sleeves, the grey dust-exbaust system of 11 gear, 12 dust block boards, 13 control arms, 14 fin heat exchange pipes, 15 connecting rods, 16 fastening bolts, 17 air intlets, 18 dust block board support bars, 19 exhaust gases passes outlets, 20 smoke backflow baffle plates, 21 set bolts, 22 inner sealing plates, 23 burners, 24 hot gas collection chambers, 25 heat outlets, 26 control cranks, 27 external seal plates, 28 fixed covers, 29 flue gas collection chambers.
Detailed description of the invention
As shown in the figure; Living beings heat energy supplying machine group comprises generating set main body 6, fuel supply system, material combustion heat supplying system, heat-exchange system, gear ash dust-exbaust system 11 parts; Fuel feed pipe road 4, fuel feed pipe road 4 that connection fuel supply system is set at the front end of generating set main body 6 are communicated with burner 23, the interior material combustion heat supplying system that arranges of generating set main body 6, and material combustion heat supplying system is secondary Heat supply and heat exchange mode ;above generating set main body middle front part combustion chamber 5 He in postmedian air inlet, heat supply chamber and heating plant are set respectively, form secondaryheating system; With the heat-exchange system of material combustion heat supplying system support, secondary heat exchanger is set, the secondary heat exchanger of the one-level heat supply chamber coupling heat-exchange system of material combustion heat supplying system, the first-class heat exchanger of the secondary heat supply chamber coupling heat-exchange system of material combustion heat supplying system, between heat donor passage mouth corresponding above two-stage heat exchanger, smoke backflow baffle plate 20 is set, the grey dust-exbaust system 11 of gear is set at smoke backflow baffle plate 20 places, keeps off grey dust-exbaust system 11 and also comprise the removing dust and clearing ash mouth 1 that is arranged on generating set main body 6 tops and bottom.
Generating set main body 6 is cabinet-shaped casing, is made up of generating set main body inwall 7, the outer ancient piece of jade, round, flat and with a hole in its centre of generating set main body, heat-insulation layer 8, and heat-insulation layer 8 is arranged between the inside and outside ancient piece of jade, round, flat and with a hole in its centre of main body.
The one-level heat supply chamber of material combustion heat supplying system is placed in top, combustion chamber, for box typed structure, horizontally set spiral plug-in part heat exchanger tube 9 on box-type heat supply chamber, the chamber gap between heat exchange pipeline is exhaust gases passes, exhaust gases passes outlet 19 is located at one-level heat supply chamber back side top; The secondary heating plant of material combustion heat supplying system arranges unit postmedian, the top of secondary heating plant arranges flue gas collection chamber 29, flue gas collection chamber 29 fronts arrange exhaust gases passes import, the corresponding some vertically disposed fin heat exchange pipe 14 upper end mouths of pipe in flue gas collection chamber 29 belows, the inner chamber of some fin heat exchange pipes 14 forms the exhaust gases passes of secondary heating plant, the corresponding exhanst gas outlet of the lower end mouth of pipe of some fin heat exchange pipes 14.
Heat-exchange system is made up of two-stage heat exchanger, its first-class heat exchanger is arranged at unit postmedian, heat exchanger is box-type chamber structure, air intlet 17 is arranged at box heat exchanger formula chamber madial wall middle and upper part, in box heat exchanger formula chamber, stand to some fin heat exchange pipes 14 are set, gap between fin heat exchange pipe 14 is heat exchanger channels, box heat exchanger formula chamber arranged outside hot gas collection chamber 24, hot gas collection chamber 24 UNICOM's two-stage heat exchangers, the heat exchanger tube import of its anterior corresponding secondary heat exchanger, secondary heat exchanger is made up of the spiral plug-in part heat exchanger tube 9 of one-level box-type heat supply chamber and horizontally set, the heat outlet 25 of corresponding generating set main body 6 middle front part inner sides, heat exchanger tube gas outlet, form two-stage heat-exchange system.
The gear ash dust exhaust that keeps off grey dust-exbaust system 11 is arranged at smoke backflow baffle plate 20 inner sides, generating set main body middle part, comprises, dust block board 12, dust block board support bar 18, control arm 13, connecting rod 15, inner sealing plate 22, external seal plate 27, several dust block boards 12 of horizontally set in smoke backflow passage after smoke backflow baffle plate, dust block board 12 is fixed on dust block board support bar 18, in the sleeve 10 arranging on generating set main body inwall 7 outside smoke backflow passage after one end, outside insertion smoke backflow baffle plate 20 on dust block board support bar 18, dust block board support bar 18 one end, inner side adopt bolt to be fixedly connected with one end of connecting rod 15, the other end of connecting rod 15 and control arm 13 chain connections, control arm is two ends and the movable fit of control arm fixed cover Shang Xia 13, control arm 13 lower ends arrange control crank 26, keep off grey dust-exbaust system 11 two-layer sealing plate is set, inner sealing plate 22 is near smoke backflow baffle plate 20 inner side edge edges, external seal plate 27 use set bolts 21 are fixed on generating set main body outer wall, in, between external seal plate, establish heat-insulation layer 8.
The removing dust and clearing ash mouth 1 that keeps off grey dust-exbaust system is separately positioned on generating set main body 6 middle front part one-level heat supply chambers and generating set main body 6 postmedian secondary heat supply chamber tops, simultaneously below generating set main body 6 middle front part combustion chambers 5, the below of the grey dust-exbaust system 11 of generating set main body middle part gear, and generating set main body postmedian secondary heat supply chamber below all arranges removing dust and clearing ash mouth 1.
When work: biomass fuel enters combustion chamber 5 by fuel feed pipe road 4, first the flue gas producing after burning enters one-level heat supply chamber, through horizontal spiral interpolation heat exchanger tube 9, flue gas after heat exchange is discharged through the exhanst gas outlet of one-level heat supply chamber, doing " U " shape along smoke backflow baffle plate 20 refluxes, enter the grey dust-exbaust system 11 of gear, according to the environmental index requirement of dustiness and dust discharge, control the control arm 13 of the grey dust-exbaust system of gear by control arm control crank 26, and then rotate dust block board support bar 18 by connecting rod, dust block board 12 is adjusted to required angle, make larger particles dust fall into bottom removing dust and clearing ash mouth 1, the flue gas collection chamber 29 on the secondary heat supply chamber top of more clean flue gas access arrangement main body postmedian after keeping off grey dust-exbaust system 11 processing, enter the exhaust gases passes that some fin heat exchange pipes 14 form, enter exhanst gas outlet pipeline by fin heat exchange pipe 14 outlets, complete secondary heat supply.The first-class heat exchanger of mating with secondary heat supply chamber is combined by box-type chamber and fin heat exchange pipe 14, cold air is introduced into the first-class heat exchanger of secondary heat exchange system by air intlet 17, space through finned tube 14, complete after one-level heat exchange, enter by the hot gas collection chamber 24 of first-class heat exchanger rear side the secondary heat exchanger that generating set main body middle front part mates with one-level heat supply chamber, through the horizontal heat exchange pipeline of secondary heat exchanger, finally discharged by hot air outlet 25, be conveyed into drying chamber by pipeline and complete oven dry task.

Claims (8)

1. a living beings heat energy supplying machine group, mainly formed by body of heater, material combustion system, dust-exbaust system, heat-exchange system, it is characterized in that: living beings heat energy supplying machine group comprises generating set main body, fuel supply system, material combustion heat supplying system, heat-exchange system, gear ash dust-exbaust system part; In the front end of generating set main body arranges the fuel feed pipe road, generating set main body that connects fuel supply system, material combustion heat supplying system is set, material combustion heat supplying system is secondary heat-supplying mode ;above generating set main body middle front part combustion chamber He in postmedian air inlet, heat supply chamber and heating plant are set respectively, form twolevel heating system; With the heat-exchange system of material combustion heat supplying system support, secondary heat exchanger is set, the secondary heat exchanger of the one-level heat supply chamber coupling heat-exchange system of material combustion heat supplying system, the first-class heat exchanger of the secondary heating plant coupling heat-exchange system of material combustion heat supplying system, between heat donor passage mouth corresponding above two-stage heat exchanger, smoke backflow baffle plate is set, the gear ash dust exhaust that the grey dust-exbaust system of gear is set at smoke backflow baffle plate inner side edge place, keeps off grey dust-exbaust system and also comprises the removing dust and clearing ash mouth that is arranged on generating set main body top and bottom.
2. living beings heat energy supplying machine group according to claim 1, is characterized in that: generating set main body is cabinet-shaped casing, is made up of generating set main body inwall, the outer ancient piece of jade, round, flat and with a hole in its centre of generating set main body, heat-insulation layer.
3. living beings heat energy supplying machine group according to claim 1, is characterized in that: the one-level heat supply chamber of material combustion heat supplying system is placed in top, combustion chamber, is box typed structure ,box-type heat supply chamber horizontally set spiral plug-in part heat exchanger tube, the chamber gap between heat exchange pipeline forms exhaust gases passes, and exhaust gases passes outlet is located at one-level heat supply chamber back side top; The secondary heat supply chamber of material combustion heat supplying system arranges unit postmedian, the top of secondary heating plant arranges flue gas collection chamber, flue gas collection chamber front arranges exhaust gases passes import, corresponding some vertically disposed fin heat exchange pipes upper end, flue gas collection chamber below mouth of pipe, the inner chamber of some fin heat exchange pipes forms the exhaust gases passes of secondary heating plant, the corresponding exhanst gas outlet of the lower end mouth of pipe of fin heat exchange pipe.
4. living beings heat energy supplying machine group according to claim 1, it is characterized in that: heat-exchange system is made up of two-stage heat exchanger, its first-class heat exchanger is arranged at unit postmedian, heat exchanger is box-type chamber structure, air intlet is arranged at box heat exchanger formula chamber madial wall middle and upper part, in box heat exchanger formula chamber, stand to some fin heat exchange pipes are set, gap between fin heat exchange pipe is hot gas path, box heat exchanger formula chamber arranged outside hot gas collection chamber, hot gas collection chamber is communicated with two-stage heat exchanger, the heat exchanger tube import of its anterior corresponding secondary heat exchanger, secondary heat exchanger is made up of the spiral plug-in part heat exchanger tube of one-level heat supply chamber and horizontally set, the heat outlet of corresponding generating set main body middle front part inner side, heat exchanger tube gas outlet, form two-stage heat-exchange system.
5. living beings heat energy supplying machine group according to claim 1, is characterized in that: the gear ash dust exhaust that keeps off grey dust-exbaust system is arranged at smoke backflow baffle plate inner side, generating set main body middle part, comprises; Dust block board, dust block board support bar, control arm, connecting rod, inner sealing plate, external seal plate; Several dust block boards of horizontally set in smoke backflow passage after smoke backflow baffle plate, dust block board is fixed on dust block board support bar, in the sleeve arranging on generating set main body inwall outside smoke backflow passage after one end, outside insertion smoke backflow baffle plate on dust block board support bar, inside dust block board support bar, one end adopts bolt to be fixedly connected with one end of connecting rod, the other end of connecting rod and control arm chain connection, the movable fit of the upper and lower two ends of control arm and control arm fixed cover, control arm lower end arranges control arm handle, keeps off grey dust exhaust two-layer sealing plate is set.
6. living beings heat energy supplying machine group according to claim 1, it is characterized in that: the removing dust and clearing ash mouth that keeps off grey dust-exbaust system is separately positioned on generating set main body middle front part one-level heat supply chamber and generating set main body postmedian secondary heat supply chamber top, simultaneously below generating set main body middle front part combustion chamber, the below of the grey dust-exbaust system of generating set main body middle part gear, and generating set main body postmedian secondary heat supply chamber below all arranges removing dust and clearing ash mouth.
7. living beings heat energy supplying machine group according to claim 2, is characterized in that: heat-insulation layer is arranged between the inside and outside ancient piece of jade, round, flat and with a hole in its centre of main body.
8. living beings heat energy supplying machine group according to claim 5, is characterized in that: keep off the inner sealing plate of grey dust exhaust near smoke backflow baffle plate inner side edge edge, external seal plate is fixed on generating set main body outer wall, between inside and outside sealing plate, establishes heat-insulation layer.
CN201420277176.7U 2014-05-28 2014-05-28 Biomass heat energy supply unit Withdrawn - After Issue CN203881094U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420277176.7U CN203881094U (en) 2014-05-28 2014-05-28 Biomass heat energy supply unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420277176.7U CN203881094U (en) 2014-05-28 2014-05-28 Biomass heat energy supply unit

Publications (1)

Publication Number Publication Date
CN203881094U true CN203881094U (en) 2014-10-15

Family

ID=51681583

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420277176.7U Withdrawn - After Issue CN203881094U (en) 2014-05-28 2014-05-28 Biomass heat energy supply unit

Country Status (1)

Country Link
CN (1) CN203881094U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103983096A (en) * 2014-05-28 2014-08-13 王宁 Biomass thermal energy supply unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103983096A (en) * 2014-05-28 2014-08-13 王宁 Biomass thermal energy supply unit
CN103983096B (en) * 2014-05-28 2016-01-13 王宁 Living beings heat energy supplying machine group

Similar Documents

Publication Publication Date Title
CN103017328A (en) Combustion and heat exchange system of heating equipment
CN203881094U (en) Biomass heat energy supply unit
CN204006649U (en) A kind of multitube high temperature hot-blast furnace
CN101650073B (en) Baffling hot-blast stove
CN202630400U (en) Hot-blast stove
CN204923441U (en) High -efficient environmental protection hot -blast furnace
CN103983096B (en) Living beings heat energy supplying machine group
CN206695096U (en) A kind of steam boiler
CN204213914U (en) Horizontal biomass ebullition bed heat pipe boiler
CN204829889U (en) Domestic energy -concerving and environment -protective boiler
CN203309939U (en) Biomass heating and cooking dual-purpose stove
CN201449007U (en) A turn-back flow coal burning hot air furnace
CN202253556U (en) Horizontal counter-burning multi-pass environmentally-friendly and energy-saving boiler
CN201615594U (en) High-efficient energy-saving normal pressure hot water boiler
CN208794719U (en) A kind of small-sized air heating furnace
CN204648207U (en) Multipurpose horizontal heating furnace
CN106091375A (en) A kind of gas fuel air stove
CN213713558U (en) A visual temperature control furnace
CN104848201A (en) Multifunctional horizontal water heating stove
CN217737529U (en) Heating module in high-power gas heating furnace
CN206320731U (en) A kind of energy-efficient many regenerative waste heat recycle of high temperature flue gas combustion systems
CN206160478U (en) Double -hearth violently manages shell and tube high -efficiency biological matter hot -blast furnace
CN205825437U (en) A kind of heat exchanger for hot blast furnace
CN104061678B (en) Heart-shaped heat exchanger tube multitube high temperature hot-blast furnace
CN205939674U (en) Extreme misery pipe boiler

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20141015

Effective date of abandoning: 20160113

C25 Abandonment of patent right or utility model to avoid double patenting