CN102226645A - High-speed burner impulse tunnel furnace - Google Patents
High-speed burner impulse tunnel furnace Download PDFInfo
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- CN102226645A CN102226645A CN2011101475381A CN201110147538A CN102226645A CN 102226645 A CN102226645 A CN 102226645A CN 2011101475381 A CN2011101475381 A CN 2011101475381A CN 201110147538 A CN201110147538 A CN 201110147538A CN 102226645 A CN102226645 A CN 102226645A
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Abstract
The invention discloses a high-speed burner impulse tunnel furnace which comprises a furnace body, a fuel gas pipeline, an air pipeline, a fuel gas cutting valve, two high-speed burners, two manual regulating valves, two impulse control valves and a combustion control device, wherein the two high-speed burners are installed at the lower end of two side walls of the furnace body or are installed at the upper end and the lower end of the two side walls of the furnace body; the impulse control valve and the fuel gas cutting valve are electrically connected with the combustion control device; and the combustion control device is an impulse regulating device or an upper computer. The furnace has the advantages that: the convection heat transfer in the furnace is strengthened, the atmosphere stirring in the furnace is improved, the atmosphere temperature difference in the furnace is reduced, and the atmosphere in the furnace can be controlled to be less than or equal to +/- 10 DEG C. The high-speed burner can directly burn fuel with low heating value such as blast-furnace gas, and the fuel is widely applicable. Impulse regulation is adopted to control temperature in the heating process, and various heating requirements can be met; and when an upper machine sets a temperature control curve, the furnace can be full-automatically controlled without manual operation, and the temperature control accuracy can reach less than or equal to +/- 1 DEG C.
Description
Technical field
The present invention relates to combustion furnace equipment, particularly relate to a kind of high combustion rate burner pulse continuous tunnel furnace.
Background technology
What at present, continuous tunnel furnace adopted is conventional common burner.Use this common burner, the spouting velocity of stove internal combustion product is low, the convection heat transfer' heat-transfer by convection weak effect, the atmosphere in the stove is disturbed and is mixed not goodly, has reduced the furnace atmosphere temperature difference, in the stove temperature atmosphere usually 〉=± 25 ℃.Now, continuous tunnel furnace specification requirement Atmosphere Control≤± 10 ℃ in, adopt common burner to be guaranteed.
Common burner flame burning poor stability, burner be low calorie fuels such as burning blast furnace gas directly, causes when low-temperature condition, and fuel accommodation is little.
In addition, traditional continuous tunnel furnace generally adopts manual adjustments control, and control device falls behind, and temperature-controlled precision is poor≤and ± 15 ℃.Because heating process needs manually-operated, therefore can't satisfy the requirement of various heating processes.
Summary of the invention
Purpose of the present invention is exactly in order to overcome above defective, provides a kind of convection heat transfer' heat-transfer by convection and furnace atmosphere can strengthened in the stove to disturb and mix, and reduces the furnace atmosphere temperature difference, control fully automatically, the high combustion rate burner pulse continuous tunnel furnace of fuel wide accommodation.
For achieving the above object, high combustion rate burner pulse continuous tunnel furnace provided by the invention, comprise the continuous tunnel furnace body of heater, burner, gas pipeline, air duct, fuel gas shutoff valve and 2 manual modulation valves, one end of gas pipeline is a fuel gas inlet, the gas pipeline other end communicates with the fuel gas inlet of burner, one end of air duct is an air intake, the air duct other end communicates with the air intlet of burner, first manual modulation valve is installed on the preceding gas pipeline of burner, second manual modulation valve is installed on the preceding air duct of burner, the fuel gas shutoff valve is installed on the preceding gas pipeline of first manual modulation valve, also comprise 2 pulse by-pass valve controls and combustion control device, described burner adopts 2 high combustion rate burners, high combustion rate burner, manual modulation valve and pulse by-pass valve control are respectively 2,2 high combustion rate burners are installed in respectively on two sidewalls of body of heater, the first pulse by-pass valve control is installed near on the gas pipeline of fuel gas inlet one end, the second pulse by-pass valve control is installed near on the air duct of air intake one end, the described first pulse by-pass valve control, the second pulse by-pass valve control links to each other with described combustion control device electricity with the fuel gas shutoff valve.
High combustion rate burner pulse continuous tunnel furnace of the present invention, wherein said 2 high combustion rate burners are installed in the top and bottom of two sidewalls of body of heater respectively.
High combustion rate burner pulse continuous tunnel furnace of the present invention, wherein said 2 high combustion rate burners are installed in the lower end of two sidewalls of body of heater respectively.
High combustion rate burner pulse continuous tunnel furnace of the present invention, the gas pipeline between wherein said first manual modulation valve and the fuel gas shutoff valve adopts first expansion joint, is connected with second expansion joint on the gas pipeline before second manual modulation valve.
High combustion rate burner pulse continuous tunnel furnace of the present invention, wherein said combustion control device is the pulse regulation device.
High combustion rate burner pulse continuous tunnel furnace of the present invention, wherein said combustion control device is a host computer.
The advantage of high combustion rate burner pulse continuous tunnel furnace of the present invention is: owing to adopted high combustion rate burner and in the upper and lower interlaced arrangement in body of heater both sides or in body of heater both sides lower disposed, strengthened convection heat transfer' heat-transfer by convection in the stove, improved furnace atmosphere and disturbed and mix, reduced the furnace atmosphere temperature difference.In conjunction with the pulse by-pass valve control can with Atmosphere Control≤± 10 ℃ in.After adopting high combustion rate burner, guaranteed the smooth combustion of flame, so direct low calorie fuels such as burning blast furnace gas, fuel accommodation is very wide.
Further, heating process adopts continuous P ID to regulate temperature control, can be suitable for the various heat requests that add; To set the temperature control curve at host computer, can control fully automatically, need not manually-operated, temperature-controlled precision reaches≤more than ± 1 ℃.
The present invention is described in detail below with reference to accompanying drawings and in conjunction with the embodiments.
Description of drawings
Fig. 1 is the structure cutaway view of high combustion rate burner at the high combustion rate burner pulse continuous tunnel furnace of lower disposed;
Fig. 2 is the structure cutaway view of the high combustion rate burner pulse continuous tunnel furnace of the upper and lower interlaced arrangement of high combustion rate burner.
The specific embodiment
With reference to Fig. 1, high combustion rate burner pulse continuous tunnel furnace of the present invention comprises 1,2 high combustion rate burners 2 of body of heater, gas pipeline 3, air duct 4, fuel gas shutoff valve 31 and 2 manual modulation valves, 2 pulse by-pass valve controls and combustion control device.
2 high combustion rate burners 2 are installed in the lower end of 1 two sidewalls of body of heater respectively.One end of gas pipeline 3 is a fuel gas inlet 30, and gas pipeline 3 other ends communicate with the fuel gas inlet of high combustion rate burner 2, and an end of air duct 4 is an air intake 40, and air duct 4 other ends communicate with the air intlet of high combustion rate burner 2.
First manual modulation valve 61 is installed on the gas pipeline 3 before the high combustion rate burner 2, and second manual modulation valve 62 is installed on the air duct 4 before the high combustion rate burner 2.Fuel gas shutoff valve 31 is installed on the gas pipeline 3 before first manual modulation valve 61.The first pulse by-pass valve control 71 is installed near on the gas pipeline 3 of fuel gas inlet 30 1 ends, and the second pulse by-pass valve control 72 is installed near on the air duct 4 of air intake 40 1 ends.Gas pipeline 3 between first manual modulation valve 61 and the fuel gas shutoff valve 31 adopts first expansion joint 51 to be connected.Be connected with second expansion joint 52 on the air duct 4 before second manual modulation valve 62, first expansion joint 51 be installed and second expansion joint 52 is used to eliminate pipe expansion stress.
The first pulse by-pass valve control 71, the second pulse by-pass valve control 72, fuel gas shutoff valve 31 link to each other with the combustion control device electricity.Combustion control device is the pulse regulation device.The pulse regulation device is a known technology, so repeat no more.
In other embodiment of high combustion rate burner pulse continuous tunnel furnace of the present invention, combustion control device is a host computer.Host computer is a known technology, also repeats no more.
With reference to Fig. 2, in other embodiment of high combustion rate burner pulse continuous tunnel furnace of the present invention, 2 high combustion rate burners 2 can be installed in the top and bottom of 1 two sidewalls of body of heater respectively.
Below the course of work of high combustion rate burner pulse continuous tunnel furnace of the present invention is explained.
High combustion rate burner pulse continuous tunnel furnace and combustion system, smoke evacuation system, pre-heating system, various plant equipment and combustion control device are formed the tunnel type anneling production line, begin to be divided into preheating section, bringing-up section, soaking zone, cooling section from feedstock direction, material enters preheating section and begins preheating, by feeding device material is delivered to bringing-up section and be heated to technological temperature, deliver to the soaking zone soaking then, deliver to the cooling section cooling at last, come out of the stove then and finish whole heating process.
Referring to Fig. 1 or Fig. 2, be installed in high combustion rate burner 2 on the body of heater 1 after, the full combustion of fuel of guaranteeing in the high combustion rate burner 2 by 2 manual modulation valves 61,62 of regulating before the high combustion rate burner 2.High combustion rate burner 2 has guaranteed the smooth combustion of flame, direct low calorie fuels such as burning blast furnace gas, and fuel accommodation is very wide.Because convection heat transfer' heat-transfer by convection in the stove, improved furnace atmosphere and disturbed and mix, reduce the furnace atmosphere temperature difference.Gas pipeline 3 is provided with fuel gas shutoff valve 31, cuts off fuel gas shutoff valve 31 when combustion control device detects the flame-out or fault of high combustion rate burner 2, guarantees combustion completion.Combustion control device is installed pulse by- pass valve control 71,72 by control air duct 4 and gas pipeline 3 and is realized the pulse of big fire, little fire is controlled.Also can realize that PID regulate continuously by pulse by- pass valve control 71,72, by temperature control with Atmosphere Control≤± 10 ℃ in, to adapt to the requirement of various heating processes.
If heating process is to set the temperature control curve in host computer, can realize control fully automatically, need not manually-operated, temperature-controlled precision reaches≤more than ± 1 ℃.
Above-described embodiment is described preferred implementation of the present invention; be not that scope of the present invention is limited; do not breaking away under the prerequisite that the present invention relates to spirit; various distortion and improvement that the common engineers and technicians in this area make technical scheme of the present invention all should fall in the definite protection domain of claims of the present invention.
Claims (6)
1. high combustion rate burner pulse continuous tunnel furnace, comprise continuous tunnel furnace body of heater (1), burner, gas pipeline (3), air duct (4), fuel gas shutoff valve (31) and 2 manual modulation valves (61,62), one end of described gas pipeline (3) is fuel gas inlet (30), described gas pipeline (3) other end communicates with the fuel gas inlet of described burner, one end of described air duct (4) is air intake (40), described air duct (4) other end communicates with the air intlet of described burner, first manual modulation valve (61) is installed on the preceding described gas pipeline (3) of burner, second manual modulation valve (62) is installed on the preceding described air duct (4) of burner (2), described fuel gas shutoff valve (31) is installed on the preceding described gas pipeline (3) of first manual modulation valve (61), it is characterized in that: also comprise 2 pulse by-pass valve controls (71,72) and combustion control device, described burner adopts 2 high combustion rate burners (2), 2 described high combustion rate burners (2) are installed in respectively on two sidewalls of described body of heater (1), the described first pulse by-pass valve control (71) is installed near on the described gas pipeline (3) of fuel gas inlet (30) one ends, the second pulse by-pass valve control (72) is installed near on the described air duct (4) of air intake (40) one ends, the described first pulse by-pass valve control (71), the second pulse by-pass valve control (72) links to each other with described combustion control device electricity with fuel gas shutoff valve (31).
2. high combustion rate burner pulse continuous tunnel furnace according to claim 1 is characterized in that: wherein said 2 are burnt the top and bottom that (2) mouth is installed in (1) two sidewall of described body of heater respectively at a high speed.
3. high combustion rate burner pulse continuous tunnel furnace according to claim 1 is characterized in that: wherein said 2 high combustion rate burners (2) are installed in the lower end of (1) two sidewall of described body of heater respectively.
4. according to claim 1 or 2 or 3 described high combustion rate burner pulse continuous tunnel furnaces, it is characterized in that: adopt first expansion joint (51) to be connected between wherein said first manual modulation valve (61) and the described fuel gas shutoff valve (31), be connected with second expansion joint (52) on the preceding described air duct (4) of described second manual modulation valve (62).
5. high combustion rate burner pulse continuous tunnel furnace according to claim 4 is characterized in that: wherein said combustion control device is the pulse regulation device.
6. high combustion rate burner pulse continuous tunnel furnace according to claim 4 is characterized in that: wherein said combustion control device is a host computer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101475381A CN102226645A (en) | 2011-06-02 | 2011-06-02 | High-speed burner impulse tunnel furnace |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101475381A CN102226645A (en) | 2011-06-02 | 2011-06-02 | High-speed burner impulse tunnel furnace |
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| CN102226645A true CN102226645A (en) | 2011-10-26 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106288779A (en) * | 2016-08-16 | 2017-01-04 | 定州唐北绝缘子有限公司 | A kind of automaton of fully automatic high-speed drawer kiln |
| CN111560501A (en) * | 2020-05-29 | 2020-08-21 | 中国科学院宁波材料技术与工程研究所 | Tunnel furnace heating device |
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| CN2852010Y (en) * | 2005-09-21 | 2006-12-27 | 侯敬东 | Wide roller table kiln with pulse controller and proportional combustion controller |
| CN201407893Y (en) * | 2009-05-21 | 2010-02-17 | 华南理工大学 | Impulse grouping control burning broad-body ceramic roller kiln |
| CN101852549A (en) * | 2010-05-27 | 2010-10-06 | 潍坊同晟工贸有限公司 | Low-energy consumption wide tunnel furnace |
| CN202149688U (en) * | 2011-06-02 | 2012-02-22 | 胡和平 | High-speed burner impulse tunnel furnace |
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2011
- 2011-06-02 CN CN2011101475381A patent/CN102226645A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2852010Y (en) * | 2005-09-21 | 2006-12-27 | 侯敬东 | Wide roller table kiln with pulse controller and proportional combustion controller |
| CN201407893Y (en) * | 2009-05-21 | 2010-02-17 | 华南理工大学 | Impulse grouping control burning broad-body ceramic roller kiln |
| CN101852549A (en) * | 2010-05-27 | 2010-10-06 | 潍坊同晟工贸有限公司 | Low-energy consumption wide tunnel furnace |
| CN202149688U (en) * | 2011-06-02 | 2012-02-22 | 胡和平 | High-speed burner impulse tunnel furnace |
Non-Patent Citations (1)
| Title |
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| 何寿生: "脉冲燃烧技术及其在陶瓷窑炉中的应用", 《陶瓷》, no. 05, 31 May 1998 (1998-05-31) * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106288779A (en) * | 2016-08-16 | 2017-01-04 | 定州唐北绝缘子有限公司 | A kind of automaton of fully automatic high-speed drawer kiln |
| CN111560501A (en) * | 2020-05-29 | 2020-08-21 | 中国科学院宁波材料技术与工程研究所 | Tunnel furnace heating device |
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Application publication date: 20111026 |