CN201277706Y - Temperature keeping apparatus for heat accumulation type hot air stove - Google Patents

Temperature keeping apparatus for heat accumulation type hot air stove Download PDF

Info

Publication number
CN201277706Y
CN201277706Y CNU2008201871118U CN200820187111U CN201277706Y CN 201277706 Y CN201277706 Y CN 201277706Y CN U2008201871118 U CNU2008201871118 U CN U2008201871118U CN 200820187111 U CN200820187111 U CN 200820187111U CN 201277706 Y CN201277706 Y CN 201277706Y
Authority
CN
China
Prior art keywords
combustion air
air
blast
main pipe
pipe
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
CNU2008201871118U
Other languages
Chinese (zh)
Inventor
黄足兵
范文祥
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.)
Maanshan Iron and Steel Co Ltd
Original Assignee
Maanshan Iron and Steel 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 Maanshan Iron and Steel Co Ltd filed Critical Maanshan Iron and Steel Co Ltd
Priority to CNU2008201871118U priority Critical patent/CN201277706Y/en
Application granted granted Critical
Publication of CN201277706Y publication Critical patent/CN201277706Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

The utility model belongs to the field of heat exchangers of heat accumulating type, in particular relates to an attemperator of a blast furnace hot blast stove, which comprises a combustion air main pipe and an air-mixing main pipe, wherein a reverse blast pipe is mounted between the combustion air main pipe and the air-mixing main pipe, and a valve is arranged on the reverse blast pipe. Compared with the prior art, only the reverse blast pipe and the valve are mounted between the combustion air main pipe and the air-mixing main pipe in the utility model, when a blast furnace is maintained or a furnace stops working for insulation, the valve is opened, combustion air at a temperature higher than 180 DEG C is sent into a regenerator by an air-mixing pipe, and the heat of the combustion air is utilized for insulation so as to save energy, protect the environment, be recycled and be simple to operate.

Description

The regenerative hot blast stove attemperator
Technical field
The utility model belongs to the heat exchanger field, relates in particular to the attemperator of blast funnace hot blast stove
Background technology
Hot-blast stove is the visual plant in the iron-making production, and it supplies with blast-furnace hot-air to improve furnace processor, cut down the consumption of energy, improve iron quality and to reduce ironmaking cost.At present, hot-blast stove roughly is divided into internal combustion stove, outer right formula hot-blast stove and top combustion stove.For improving wind-warm syndrome, its something in common is to adopt silica brick to build by laying bricks or stones in the high-temperature region, but silica brick has a very big shortcoming, is exactly low temperature volume poor stability.The hot-blast stove that silica brick is built by laying bricks or stones does not allow temperature drop too fast, must remain on more than 600 ℃.Therefore during blast furnace stopping, adopt rational insulation measure very important.The insulation way of hot-blast stove has " internal combustion heating, air-supply cooling " method at present.No. 10 blast furnaces of Anshan iron and steel plant are just once blowing out in 1994 month, the insulation way is to install burner in regenerator additional, little air quantity cooling is adopted in just burning heating when dome temperature is lower than 750 ℃, EGT temperature when being higher than 350 ℃, use this method successfully to be incubated 138 days.Though this method can be incubated to silicon brick hot-blast stove, its thermal waste must remove complex operation greatly and after using.For improving hot-blast stove wind-warm syndrome and efficiency of combustion, all adopt the way that improves combustion air temperature, combustion air temperature remains on more than 180 ℃ at present.For this reason, having producer to take to set up every chamber of hot-blast stove bottom manhole of one group of 800mm person in charge guiding from the combustion fan exit connects the arm of diameter 600mm and stop valve is installed, close all valves of hot-blast stove during blast furnace stopping, go into regenerator from the combustion air that combustion fan is introduced more than 180 ℃, regenerator silica brick temperature is remained on more than 700 ℃.Though this method can reduce thermal energy consumption, operate still loaded down with trivial detailsly, and must remove pipeline after using, otherwise influence ordinary production.
Summary of the invention
In order to overcome the shortcomings and deficiencies that prior art exists, the purpose of this utility model is to provide a kind of regenerative hot blast stove attemperator, and this device can guarantee the insulation of silicon brick hot-blast stove safety when long-time maintenance of blast furnace or blowing out, again can energy-conserving and environment-protective, can be repeatedly used, and simple to operate.
For achieving the above object, the technical solution of the utility model comprises the combustion air house steward, mixes the wind house steward, and the inverse blow pipe is installed between described combustion air house steward and mixed wind house steward, on the inverse blow pipe valve is set.
Compared with prior art, the utility model is as long as install inverse blow pipe and valve between combustion air house steward and mixed wind house steward, when blast furnace maintenance or blowing out need be incubated, open valve, combustion air more than 180 ℃ is sent into regenerator by mixing wind tube is contrary, utilize the heat of combustion air to be incubated, can energy-conserving and environment-protective, can be repeatedly used again, and simple to operate.
Description of drawings
Below in conjunction with accompanying drawing the utility model embodiment is described further.
Fig. 1: external-burning regenerative hot blast stove horizontal layout schematic diagram
The specific embodiment
Be that example describes the utility model in detail below with the external combustion stove;
As shown in Figure 1, external combustion stove comprises combustion chamber 5, regenerator 4, mixes wind house steward 1, combustion air house steward 2, gas piping, cold air duct, hot air duct, flue and other pipelines and valve.The hot-blast stove course of work is roughly as follows: close hot blast, cold air duct, feed coal gas and combustion airs by gas piping and the past combustion chamber 5 of combustion air pipeline, the burner combustion heating, heat is collected by the checker brick in the regenerator 4, and the flue gas that produces during burning is discharged chimney along the flue tube of hot-blast stove bottom.After heat stores and finishes, coal gas, combustion air, flue valve closing.The heat that cold wind is stored by regenerator during by regenerator heats up and the temperature that reaches blast furnace and need becomes hot blast, is improved to blast furnace by hot air duct.As shown in Figure 1, when blast furnace maintenance or blowing out need be incubated, closeall valve is opened then and is arranged at the valve that connects on the inverse blow pipe 3 that mixes wind house steward 1 and combustion air house steward 2 earlier, and hot combustion air is gone into regenerator 4 by mixed wind house steward 1 inverse blow and is incubated.Valve-off gets final product when not needing to be incubated.

Claims (1)

1, a kind of regenerative hot blast stove attemperator comprises the combustion air house steward, mixes the wind house steward, it is characterized in that: the inverse blow pipe is installed between described combustion air house steward and mixed wind house steward, on the inverse blow pipe valve is set.
CNU2008201871118U 2008-09-24 2008-09-24 Temperature keeping apparatus for heat accumulation type hot air stove Expired - Fee Related CN201277706Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008201871118U CN201277706Y (en) 2008-09-24 2008-09-24 Temperature keeping apparatus for heat accumulation type hot air stove

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008201871118U CN201277706Y (en) 2008-09-24 2008-09-24 Temperature keeping apparatus for heat accumulation type hot air stove

Publications (1)

Publication Number Publication Date
CN201277706Y true CN201277706Y (en) 2009-07-22

Family

ID=40895290

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2008201871118U Expired - Fee Related CN201277706Y (en) 2008-09-24 2008-09-24 Temperature keeping apparatus for heat accumulation type hot air stove

Country Status (1)

Country Link
CN (1) CN201277706Y (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110848724A (en) * 2019-11-20 2020-02-28 景德镇陶瓷大学 Three-channel heat accumulating type heat exchange device
CN112342332A (en) * 2020-10-22 2021-02-09 马鞍山钢铁股份有限公司 Ignition heat preservation and inverse air supply integrated system for hot blast stove and operation method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110848724A (en) * 2019-11-20 2020-02-28 景德镇陶瓷大学 Three-channel heat accumulating type heat exchange device
CN112342332A (en) * 2020-10-22 2021-02-09 马鞍山钢铁股份有限公司 Ignition heat preservation and inverse air supply integrated system for hot blast stove and operation method

Similar Documents

Publication Publication Date Title
CN103088178B (en) Blast furnace hot-blast stove flue gas self-circulation combustion method and system
CN201517887U (en) Ceramic kiln
CN102557506B (en) Complete processing equipment of coal gas expanded perlite
CN202182624U (en) Energy-saving aluminium melting conjuncted furnace
CN201277706Y (en) Temperature keeping apparatus for heat accumulation type hot air stove
CN103940213A (en) Coke drying system dry gas temperature and flow self-adjustment control device and method
CN102041337B (en) Multi-purpose system for high-temperature preheating of hot blast furnace combustion-supporting air
CN203758257U (en) Under-machine type heat exchanger for double-preheating sintering ignition furnace
CN203174129U (en) Flue gas self-circulation combustion system of blast furnace hot blast stove
CN103063044B (en) Rotary hearth furnace smoke waste heat utilization system and rotary hearth furnace fume afterheat Application way
CN201525853U (en) High-wind-temperature long-life type two-stage double-preheating device
CN201676997U (en) Single heat accumulating type forging heating furnace for burning hot dirty coal gas
CN202868978U (en) Environment-friendly hot-blast stove system
CN202968587U (en) Top combustion stove capable of effectively preventing temperature of combustor from rising excessively
CN202246727U (en) High-blast-temperature combinative heat exchange system of blast furnace
CN202808850U (en) Hot-blast stove capable of controlling temperatures
CN201289326Y (en) Combined metal heat exchanger
CN204718364U (en) Many rows combustion gas melting shaft furnace
CN201285212Y (en) Low-temperature flue gas exhaust heat recycle apparatus
CN204648986U (en) A kind of board-like pair of preheater process system for gas burning lime kiln
CN210215414U (en) Blast furnace coal powder injection and hot blast stove air/coal gas series preheating system
CN109022660B (en) A kind of heating furnace heating high hydrogen content reducing gas
CN103725818B (en) A kind of hotblast stove low temperature exhaust heat degree of depth recovery system
CN1727499A (en) High temperature primary heater unit of blast furnace hot blast stove and technique
CN205991718U (en) The outer heat extraction air circulating system of kiln hood

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090722

Termination date: 20150924

EXPY Termination of patent right or utility model