CN102692007A - Energy-saving waste heat recovery boiler for continuous roller hearth furnace - Google Patents
Energy-saving waste heat recovery boiler for continuous roller hearth furnace Download PDFInfo
- Publication number
- CN102692007A CN102692007A CN2012101305385A CN201210130538A CN102692007A CN 102692007 A CN102692007 A CN 102692007A CN 2012101305385 A CN2012101305385 A CN 2012101305385A CN 201210130538 A CN201210130538 A CN 201210130538A CN 102692007 A CN102692007 A CN 102692007A
- Authority
- CN
- China
- Prior art keywords
- pipe
- heat
- energy
- recovery boiler
- drum
- 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.)
- Pending
Links
Images
Classifications
-
- 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
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention discloses an energy-saving waste heat recovery boiler for a continuous roller hearth furnace. The waste heat recovery boiler comprises a boiler barrel 1, a heat pipe 2, an ascending pipe 3, a descending pipe 4 and header pipes 5. The lower part of the heat pipe 2 is located under the boiler barrel 1 and the upper part of the heat pipe 2 is inside the boiler barrel 1. The lower part of the ascending pipe 3 is respectively connected with left and right header pipes 5 and the upper part of the ascending pipe 3 is connected with the boiler barrel 1. The lower part of the descending pipe 4 is respectively connected with the left and right header pipes 5 and the upper part of the descending pipe 4 is connected with the boiler barrel 1. Header drainage pipes 51 are connected on the bottom parts of the left and right header pipes 5; insulating layers 6 are arranged on the outer sides of the boiler barrel 1 and the ascending pipe 3, and the insulating layers 6 are arranged on the peripheries of the descending pipe 4 and the header pipes 5. According to the waste heat recovery boiler disclosed by the invention, high-temperature smoke heat energy and radiant heat energy of a steel tube can be exchanged at the same time to generate vapor which is used as the vapor for production of the steel tube and domestic vapor. The tapping temperature of the steel tube is reduced; secondary oxidation burning loss is also reduced, and the quality of the outer surface of the product is improved.
Description
Technical field
The present invention relates to a kind of heat-treatment furnace, continous way using residual heat from kiln furnace recovery boiler at the bottom of particularly a kind of energy-conservation forming roll.
Background technology
Products such as existing steel pipe, steel plate and band steel; The positive annealing furnace of continous way comprises heating clamber, moist closet and furnace roller at the bottom of the roller that uses in process of production; Heating clamber links to each other with moist closet, and furnace roller is installed in heating clamber and the moist closet through the outer bearing block of furnace wall, is furnace roof above the furnace wall; Be furnace bottom below, flue arranged at the tail end of moist closet.Products such as steel pipe, steel plate and band steel after heating clamber high temperature Fast Heating and moist closet insulation, are directly come out of the stove and in air, are cooled off in roller-hearth continuous annealing furnace, and the high-temperature flue gas in heating clamber and the moist closet is directly discharged through flue.Its weak point is: the temperature when products such as steel pipe, steel plate and band steel are directly come out of the stove after annealing or normalizing up to 800 ℃ about, cause great amount of high-temperature heat energy to be released in the atmosphere, cause the worker laboring environment that just anneals poor; Simultaneously; Products such as steel pipe, steel plate and band steel are just being annealed when coming out of the stove air cooling about 800 ℃; Iron in its superficial layer will carry out chemical reaction and produce secondary oxidation with airborne oxidizing gas (for example oxygen, steam), and behind the product secondary oxidations such as steel pipe, steel plate and band steel, its surface generates the thicker secondary oxidation iron sheet of one deck; Influenced the pickling speed of products such as steel pipe, steel plate and band steel, the consumption of sulfuric acid when having increased pickling; If the secondary oxidation iron sheet is thicker during product annealing such as fished pipe, steel plate and band steel, just not only can causes the loss of steel, but also can reduce the outer surface quality of products such as steel pipe, steel plate and band steel.
Summary of the invention
The objective of the invention is to overcome the above-mentioned deficiency of prior art, and continous way using residual heat from kiln furnace recovery boiler at the bottom of a kind of energy-conservation forming roll is provided, so that high temperature heat and the high-temperature flue gas energy recovery after the product annealing such as steel pipe, steel plate and band steel is produced as steam; Replace producing in the enterprise steam boiler; Thereby be national energy savings, reduce environmental pollution, improve workman's working condition; Reduce the production cost of enterprise, improve economic benefit of enterprises.
Technical scheme of the present invention is: continous way using residual heat from kiln furnace recovery boiler at the bottom of a kind of energy-conservation forming roll, comprise drum, heat pipe, tedge, down-comer and collecting box pipe, and water inlet pipe, water level meter pipe and inspection manhole are arranged on the drum, blow-off pipe is arranged at the bottom; The heat pipe bottom is positioned under the drum, and top is positioned at drum; The tedge bottom is connected with left and right sides collecting box pipe respectively, and top all is connected with drum; The bottom of down-comer is connected with left and right sides collecting box pipe respectively, and top all is connected with drum; Collection case blow-off pipe is arranged at collecting box pipe bottom, the left and right sides, and there is heat-insulation layer in the outside of drum and tedge, and the periphery of down-comer and collecting box pipe has heat-insulation layer.
Heat pipe is divided into plurality of rows from front to back.
Tedge is divided into plurality of rows from front to back, two tedges about every row has.
Two rows totally four before and after down-comer divided, two down-comers about front-seat and back row respectively has.
Heat pipe is shaped as L shaped, so that absorb waste heat near thermal source as much as possible.
Heat recovery boiler of the present invention can exchange two kinds of heat energy of radiant heat energy of products such as high-temperature flue gas heat energy and steel pipe, steel plate and band steel simultaneously and be produced as steam; The tapping temperature of products such as steel pipe, steel plate and band steel can be controlled at about 250 ℃; High-temperature flue gas heat energy is most of to be recycled; Make most of recovery of energy consumption heat energy of positive annealing furnace be produced as steam, supply the process steam and the life of products such as steel pipe, steel plate and band steel to use steam, improved the heat recovery rate of stove; Simultaneously, the reduction of product tapping temperatures such as steel pipe, steel plate and band steel has also reduced the secondary oxidation scaling loss, has improved the outer surface quality of product.
The present invention be not only applicable to produce products such as steel pipe, steel plate and band steel positive annealing furnace, also be applicable to the kiln of firing various ceramic products.
Be example to produce steel pipe below, detailed content of the present invention further described in conjunction with the figure and the specific embodiment.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention one;
Fig. 2 is the right view of Fig. 1;
Fig. 3 is the structural representation of the embodiment of the invention two.
The specific embodiment
Embodiment one:
Like Fig. 1, shown in 3: continous way using residual heat from kiln furnace recovery boiler at the bottom of a kind of energy-conservation forming roll, comprise drum 1, heat pipe 2, tedge 3, down-comer 4 and collecting box pipe 5, water inlet pipe 11, water level meter pipe 12 and inspection manhole 13 are arranged on the drum 1, blow-off pipe 14 is arranged at the bottom; Heat pipe 3 is divided into plurality of rows from front to back, and the bottom is positioned at drum 1 time, and top is positioned at drum 1; Tedge 3 is divided into plurality of rows from front to back, and about every row has two, the bottom is connected with left and right sides collecting box pipe 5 respectively, and top all is connected with drum 1; 4 fens front and back two of down-comer are arranged totally four, two down-comers 4 about front-seat and back is arranged and respectively had, and the bottom of left and right sides down-comer 4 is connected with left and right sides collecting box pipe 5 respectively, and top all is connected with drum 1; Collection case blow-off pipe 51 is arranged at left and right sides collecting box pipe 5 bottoms, and there is heat-insulation layer 6 in the outside of drum 1 and tedge 3, and the periphery of down-comer 4 and collecting box pipe 5 has heat-insulation layer 6.
The steel pipe that comes out from moist closet is on through the waste heat recovery section time; After being absorbed by heat recovery boiler, the heat of the steel pipe of temperature about up to 800 ℃ comes out of the stove (tapping temperature can be controlled at about 250 ℃); The bottom of heat pipe 2 absorbs the heat of steel pipe below drum 1 after, the top through heat pipe 2 is delivered in the drum 1; Meanwhile, the water in the drum 1 flows into collecting box pipe 5 through down-comer 4, after the water in the collecting box pipe 5 absorbs heat in tedge 3 and heats up; Flow back into again in the drum 1; So heat exchange is carried out in circulation, constantly produces steam, cooling pull out in the steel pipe's production process the pickling process heating use; Need not to produce steam, practice thrift a large amount of energy through coal-fired (gas) boiler.
Embodiment two:
Like Fig. 2, shown in 3: continous way using residual heat from kiln furnace recovery boiler at the bottom of a kind of energy-conservation forming roll, comprise drum 1, heat pipe 2, tedge 3, down-comer 4 and collecting box pipe 5, being shaped as of heat pipe 2 is L shaped, so that as much as possible near steel pipe.All the other structures are identical with embodiment one with the course of work.
Claims (9)
1. continous way using residual heat from kiln furnace recovery boiler at the bottom of the energy-conservation forming roll is characterized in that comprising drum, heat pipe, tedge, down-comer and collecting box pipe, and water inlet pipe, water level meter pipe and inspection manhole are arranged on the drum, and blow-off pipe is arranged at the bottom; The heat pipe bottom is positioned under the drum, and top is positioned at drum; The tedge bottom is connected with left and right sides collecting box pipe respectively, and top all is connected with drum; The bottom of down-comer is connected with left and right sides collecting box pipe respectively, and top all is connected with drum; Collection case blow-off pipe is arranged at collecting box pipe bottom, the left and right sides, and there is heat-insulation layer in the outside of drum and tedge, and the periphery of down-comer and collecting box pipe has heat-insulation layer.
2. continous way using residual heat from kiln furnace recovery boiler at the bottom of the energy-conservation forming roll according to claim 1 is characterized in that heat pipe is divided into plurality of rows from front to back.
3. continous way using residual heat from kiln furnace recovery boiler at the bottom of the energy-conservation forming roll according to claim 1 and 2 is characterized in that tedge is divided into plurality of rows from front to back, two tedges about every row has.
4. continous way using residual heat from kiln furnace recovery boiler at the bottom of the energy-conservation forming roll according to claim 1 and 2 is characterized in that down-comer divides totally four of front and back two rows, two down-comers about front-seat and back is arranged and respectively had.
5. continous way using residual heat from kiln furnace recovery boiler at the bottom of the energy-conservation forming roll according to claim 3 is characterized in that down-comer divides totally four of front and back two rows, two down-comers about front-seat and back is arranged and respectively had.
6. continous way using residual heat from kiln furnace recovery boiler at the bottom of the energy-conservation forming roll according to claim 1 and 2, it is L shaped to it is characterized in that heat pipe is shaped as.
7. continous way using residual heat from kiln furnace recovery boiler at the bottom of the energy-conservation forming roll according to claim 3, it is L shaped to it is characterized in that heat pipe is shaped as.
8. continous way using residual heat from kiln furnace recovery boiler at the bottom of the energy-conservation forming roll according to claim 4, it is L shaped to it is characterized in that heat pipe is shaped as.
9. continous way using residual heat from kiln furnace boiler at the bottom of the energy-conservation forming roll according to claim 5, it is L shaped to it is characterized in that heat pipe is shaped as.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101305385A CN102692007A (en) | 2012-04-28 | 2012-04-28 | Energy-saving waste heat recovery boiler for continuous roller hearth furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101305385A CN102692007A (en) | 2012-04-28 | 2012-04-28 | Energy-saving waste heat recovery boiler for continuous roller hearth furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102692007A true CN102692007A (en) | 2012-09-26 |
Family
ID=46857635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101305385A Pending CN102692007A (en) | 2012-04-28 | 2012-04-28 | Energy-saving waste heat recovery boiler for continuous roller hearth furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102692007A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108534111A (en) * | 2018-04-03 | 2018-09-14 | 李根钧 | A kind of energy conservation and environmental protection system applied in combustion apparatus |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60174402A (en) * | 1984-02-17 | 1985-09-07 | 株式会社ササクラ | Small-sized heat pipe type once-through boiler |
| CN1288386C (en) * | 2005-02-04 | 2006-12-06 | 大连理工大学 | Liquid waste incineration waste heat boiler |
| CN201163151Y (en) * | 2008-01-19 | 2008-12-10 | 焦作煤业(集团)鑫珠春工业有限责任公司 | Residual heat utilization apparatus of gangue brick tunnel kiln |
| CN102322758A (en) * | 2011-07-29 | 2012-01-18 | 林世鸿 | Heat-pipe type boiler/furnace/kiln flue-gas waste-heat recovery device |
| CN202691997U (en) * | 2012-04-28 | 2013-01-23 | 衡阳市丁点儿工业炉节能有限公司 | Energy-saving roller-hearth continuous kiln waste heat recovery boiler |
-
2012
- 2012-04-28 CN CN2012101305385A patent/CN102692007A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60174402A (en) * | 1984-02-17 | 1985-09-07 | 株式会社ササクラ | Small-sized heat pipe type once-through boiler |
| CN1288386C (en) * | 2005-02-04 | 2006-12-06 | 大连理工大学 | Liquid waste incineration waste heat boiler |
| CN201163151Y (en) * | 2008-01-19 | 2008-12-10 | 焦作煤业(集团)鑫珠春工业有限责任公司 | Residual heat utilization apparatus of gangue brick tunnel kiln |
| CN102322758A (en) * | 2011-07-29 | 2012-01-18 | 林世鸿 | Heat-pipe type boiler/furnace/kiln flue-gas waste-heat recovery device |
| CN202691997U (en) * | 2012-04-28 | 2013-01-23 | 衡阳市丁点儿工业炉节能有限公司 | Energy-saving roller-hearth continuous kiln waste heat recovery boiler |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108534111A (en) * | 2018-04-03 | 2018-09-14 | 李根钧 | A kind of energy conservation and environmental protection system applied in combustion apparatus |
| CN108534111B (en) * | 2018-04-03 | 2020-01-17 | 李根钧 | Energy-saving and environment-friendly system applied to combustion equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR20170009903A (en) | Reducing gas circulation recycling system for pickling-free continuous annealing furnace and utilisation method therefor | |
| CN202660889U (en) | Liquid deslagging high-temperature oriented silicon steel walking beam type slab heating furnace | |
| CN204730636U (en) | A kind of heated air circulation calcination stove | |
| CN104279865B (en) | A kind of brick-making method of tunnel cave | |
| CN105509492B (en) | A kind of Alumina Rotary Kiln fume afterheat and CO2 recovery systems and method | |
| CN103952529A (en) | Thermal balance-based furnace temperature optimization method of walking beam furnace | |
| CN102676788B (en) | Energy-saving type roller hearth continuous bright normalizing annealing furnace | |
| CN108006686B (en) | Quenching waste heat boiler | |
| CN103438478A (en) | Rotary regenerative combustion device of aluminum melting furnace | |
| CN201021455Y (en) | Novel residual heat utilization furnace | |
| CN204128354U (en) | A kind of brick making device of tunnel cave | |
| CN202691997U (en) | Energy-saving roller-hearth continuous kiln waste heat recovery boiler | |
| CN106480553A (en) | A kind of pre-oxidation device for carbon fiber production | |
| CN102161484A (en) | Zero-coal-consumption activated carbon production process and production device used in same | |
| CN104101225A (en) | System and method for increasing comprehensive utilization ratio of tail gas of calcium carbide furnace | |
| CN202626241U (en) | Energy-saving type roller bottom continuous brightness positive annealing furnace | |
| CN103063044B (en) | Rotary hearth furnace smoke waste heat utilization system and rotary hearth furnace fume afterheat Application way | |
| CN102692007A (en) | Energy-saving waste heat recovery boiler for continuous roller hearth furnace | |
| CN202630007U (en) | Energy-saving roller-hearth continuous kiln waste heat boiler | |
| CN203517770U (en) | Water-cooled grate biomass boiler | |
| CN102679301A (en) | Energy-saving roller-hearth continuous kiln waste heat boiler | |
| CN203518644U (en) | Waste heat utilization device of radiant tube thermal treatment furnace | |
| CN202692677U (en) | Flue gas waste heat recovery system of mesh belt furnace | |
| CN103836899B (en) | Cluster batch (-type) refractory brick dry kiln UTILIZATION OF VESIDUAL HEAT IN technique | |
| CN204404817U (en) | Fume afterheat resources shifting with utilize system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120926 |