CN201676997U - Single heat accumulating type forging heating furnace for burning hot dirty coal gas - Google Patents
Single heat accumulating type forging heating furnace for burning hot dirty coal gas Download PDFInfo
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- CN201676997U CN201676997U CN2010201451551U CN201020145155U CN201676997U CN 201676997 U CN201676997 U CN 201676997U CN 2010201451551 U CN2010201451551 U CN 2010201451551U CN 201020145155 U CN201020145155 U CN 201020145155U CN 201676997 U CN201676997 U CN 201676997U
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Abstract
The utility model relates to the technical field of forging heating industrial furnaces and kilns, in particular to a single heat accumulating type forging heating furnace for burning hot dirty coal gas, which comprises a forging heating furnace body, a heat accumulating type burner, an air blower, an induced draft fan, a reversing valve, a coal gas pipeline, an air pipeline, a control device and a chimney. The heat accumulating type burner is composed of an air spray nozzle and a coal gas spray nozzle which are provided with heat accumulating bodies; an internal furnace opening of the air spray nozzle faces an internal furnace outlet of the coal gas spray nozzle; an external furnace air pipeline of the air spray nozzle is connected with the air blower through the reversing valve; a coal gas regulating valve is arranged inside an external furnace coal gas pipeline of the coal gas spray nozzle; a slag removing outlet, a water discharge outlet and a decoking outlet are arranged inside the coal gas pipeline; and the coal gas pipeline is composed of a coal gas main pipe and coal gas branch pipes. By the aid of single heat accumulating, the single heat accumulating type forging heating furnace not only has stronger applicability to the hot dirty coal gas, but also is low in manufacturing and maintenance costs and simple in structure. Besides, the selected technology of single heat accumulating type combustion is more favorable for use of the forging heating furnace.
Description
Technical field
The utility model relates to Forge Heating industrial furnace technical field, particularly a kind of single heat storage type forge furnace that burns hot dirty gas.
Background technology
Along with industrialized continuous development, environmental protection is more and more important to people's existence life, the resource and environment problem becomes increasingly conspicuous, nowadays energy conservation and comprehensive utilization of resources are long-range strategy and policy of economy and social development, the new combustion technology that the combustion technology that this carries out in an all-round way efficiently, cleans with regard to an urgent demand high energy consumption industry, regenerative combustion technology begin to promote in developed country just the nineties in 20th century; Regenerative combustion technology also is HTAC, it has the superiority of efficient flue gas waste heat recovery, air and gas preheating temperature height and low-nitrogen oxide discharging, and therefore the application in industrial departments such as iron and steel, metallurgy, machinery, building materials more and more widely.At present, the industrial furnace that has is advanced inadequately, the energy consumption height, and considerable stove is demanded technological transformation urgently.
At present, the crude oil market price is high, and replace oil with coal becomes the long-term energy policy of China, however directly fire coal not only utilization rate is low but also environment caused huge pollution; Coal gasification becomes the effective ways that industrial furnace is realized replace oil with coal, and huge because of building the investment of cooled coal gas station again, general medium-sized and small enterprises are difficult to bear, and build heating gas station small investment, and systematic comparison is simple, becomes the favorite of medium-sized and small enterprises.Heating gas is the fuel of a kind of " dirty ", and contained most of sulphur, tar, steam, coal dust etc. have all been transferred in the coal gas in the coal, and this is with regard to having caused hot dirty gas and very easily stopping up burner and pipeline and influence use etc.Present stage each big industrial furnace of China to manufacture and design the single, double Regenerative Combustion Technology that forge furnace that company and each iron and steel enterprise manufacture adopts all be fuel with the purified gas, tar content in the coal gas, dust content all there is clear and definite regulation, this has just limited the development of regenerative combustion technology, has also limited the application of coal gasification.Therefore this just needs and a kind ofly can use hot dirty gas but also can use the novel Forge Heating stove of regenerative combustion technology.
Summary of the invention
The purpose of this utility model is the deficiency that overcomes above-mentioned technology, provides a kind of and can use the single heat storage type forge furnace that regenerative combustion technology can also be used the burning hot dirty gas of hot dirty gas.
The single heat storage type forge furnace of burning hot dirty gas of the present utility model, comprise the Forge Heating furnace body, the heat-accumulating burner that is connected of Forge Heating furnace body therewith, the air blast that is connected of heat-accumulating burner therewith, air-introduced machine, reversal valve, gaspipe line, air pipe line, air blast therewith, air-introduced machine, the control device that reversal valve is connected, the forge furnace chimney that is connected of reversal valve therewith, it is characterized in that described burner is for embedding the heat-accumulating burner in the Forge Heating furnace body respectively evenly distributedly, these heat-accumulating burners are by two air nozzles that have heat storage, the jet for gas that is located between these two air nozzles is formed, the stove inner opening of this air nozzle is towards the stove inner outlet of jet for gas, the outer air pipe line of the stove of this air nozzle is connected with described air blast by reversal valve, be provided with gas regulator in the gaspipe line outside the stove of this jet for gas, be provided with breast hole in the gaspipe line, the dewatering outlet, the coke cleaning mouth.
Described gaspipe line is made up of the branch gas tube that gas main is connected with gas main therewith, described gas regulator is arranged in each branch gas tube, described breast hole, dewatering outlet, coke cleaning mouth are arranged in gas main and each branch gas tube, the position of gas regulator in each branch gas tube is higher than the position of breast hole, dewatering outlet, coke cleaning mouth, branch gas tube enters the downside welding decoking arm of the preceding pipeline section of burner hearth, and this decoking arm is connected with described coke cleaning mouth.
The rear end of described branch gas tube is provided with adpting flange.
Be separated by between described air nozzle and the jet for gas distance of 50-80cm.
The corner of described gaspipe line changes with soft fillet.
Described air blast is the frequency conversion air blast, and described air-introduced machine is the frequency conversion air-introduced machine.
The concrete technical scheme of the pipe arrangement of the utility model patent is:
Adopt balanced configuration when (1) gas piping is arranged, make house steward's gas speed keep low-level, each corner changes with soft fillet, reduces gas pressure, and the gas speed that arrives each arm in the stove increases gradually, reduces the coal gas accident and takes place.
(2) gas piping is provided with a plurality of breast holes, dewatering outlet, coke cleaning mouth; Pipeline will keep certain gradient when installing, not to the valve lopsidedness, be the position that the position of valve is higher than breast hole, dewatering outlet, coke cleaning mouth, make the tar, steam, the dust that solidify in the coal gas be unlikely near valve, to assemble and influence the serviceability of valve.
The concrete technical scheme of the new property of this practicality is:
(1) the heat-accumulating burner burner adopts the top bubbling air, and the bottom feeds the combustion system of coal gas; Branch gas tube enters the lower end welding decoking arm of burner hearth, and the rear end is adopted flange to connect rather than be blind dead; Help tar content like this when excessive, the tamper of cleaning gas piping.
(2) air nozzle contains heat storage, adopt one and walk flue gas, and another walks the bi-directional synchronization alternate run form of air; Require air nozzle and jet for gas that certain distance is arranged, enter sky (cigarette) feed channel with the coal gas of avoiding not firing and have an accident, so also guaranteed when not closing coal gas, empty, flue gas alternate run changes the road, has guaranteed the continuity of flame.
(3) heat-accumulating burner adopts the layout policy of the most amounts of ting model, can make the interior temperature of stove even, and programming rate is fast, and object is short heat time heating time, forges easily and don't influence the quality of finished product.
The concrete technical scheme of the utility model patent control system is:
(1) reversal valve requires burner of a reversal valve control, and do not carry out simultaneously the commutating period of each reversal valve, and certain time interval is arranged; Can avoid the unstable flame phenomenon of panting that causes of the furnace pressure that causes because of commutation.
(2) require air blast, air-introduced machine to adopt frequency conversion air blast, frequency conversion air-introduced machine, come feedback signal so that the relative open amount of regulation and control air blast, air-introduced machine by control exhaust gas temperature, furnace pressure.
The utility model is by the contrast of single, double regenerative combustion technology, and because of single accumulation of heat not only has stronger adaptability to hot dirty gas, and manufacturing expense and maintenance cost are low, simple to operate; Select for use the single heat storage type combustion technology more to be used in forge furnace.
Description of drawings
Fig. 1 is a hot dirty gas list accumulation of heat forge furnace floor map.
Fig. 2 is the coal gas burner installation diagram.
Fig. 3 is Fig. 2 vertical view.
Fig. 4 is a heating furnace work schematic diagram A condition of the present utility model.
Fig. 5 is a heating furnace work schematic diagram B state of the present utility model.
The specific embodiment
Below in conjunction with the description of drawings specific embodiment of the present utility model.
As shown in Figure 1, the single heat storage type forge furnace of burning hot dirty gas of the present utility model, comprise Forge Heating furnace body 10, the heat-accumulating burner 9 that is connected of Forge Heating furnace body 10 therewith, the air blast 3 that is connected of heat-accumulating burner 9 therewith, air-introduced machine 2, reversal valve 7, gaspipe line 1, flue 4, air control valve 5, gas regulator 6, air pipe line 11, the air blast 3 that is connected of air pipe line 11 therewith, air-introduced machine 2, the control device (not shown) that reversal valve 7 is connected, the forge furnace chimney 12 that is connected with flue 4 of air-introduced machine 2 therewith, the gas burner 13 that is connected with gaspipe line 1.
As Fig. 2, shown in 3, the utility model heat-accumulating burner is for embedding the heat-accumulating burner in the Forge Heating furnace body 10 respectively evenly distributedly, each heat-accumulating burner is by two air nozzle 9-1 that have heat storage 8, the jet for gas 9-2 that is located between these two air nozzle 9-1 forms, the stove inner opening 9-3 of this air nozzle 9-1 is towards the stove inner outlet 9-4 of jet for gas 9-2, the outer air pipe line 11 of the stove of this air nozzle 9-1 is connected with described air blast 3 by reversal valve 7, be provided with gas regulator 6 in the gaspipe line 1 outside the stove of this jet for gas 9-2, breast hole is set respectively in the gaspipe line 1, the dewatering outlet, the coke cleaning mouth.
Described gaspipe line 1 is made up of the branch gas tube that gas main is connected with gas main therewith, described gas regulator 6 is arranged in this branch gas tube, described breast hole, dewatering outlet, coke cleaning mouth are arranged in gas main and each branch gas tube, and the position of gas regulator in each branch gas tube is higher than the position of breast hole, dewatering outlet, coke cleaning mouth.
Described branch gas tube enters the downside welding decoking arm 14 of the preceding pipeline section of burner hearth, and this decoking arm 14 is connected with described coke cleaning mouth, and the rear end of each branch gas tube is provided with adpting flange 15.
Be separated by between described air nozzle 9-1 and the jet for gas 9-2 distance of 50-80cm.
Described gaspipe line 1 corner changes with soft fillet.
Described air blast 3 is the frequency conversion air blast, and described air-introduced machine 2 is the frequency conversion air-introduced machine.
Heat-accumulating burner of the present utility model is set in the furnace wall, because the shape of burner can become the model of different size according to the size design of burning capacity, does not therefore have the situation of burner difficult arrangement.As shown in Figure 4, when A condition, when normal temperature air after reversal valve enters regenerator, finished heat storage 8 heating of carrier in the heat-accumulating burner under last one-period duty, air is heated near fire box temperature (generally than low 100～200 ℃ of fire box temperature) by normal temperature in the extremely short time.This high temperature air sprays in the burner hearth by custom-designed spout, the percent by volume of taking out the furnace gas formation oxygen around drawing is significantly less than 21% thin oxygen deprivation high temperature gas flow, toward injecting fuel gas near the thin high temperature air, fuel gas is realized burning under oxygen deprivation (oxygen content is 3%～15%) state simultaneously.The gas fume after burning furnace cavity of flowing through is inhaled in the air nozzle of offside after material is finished heat exchange with being heated.Again self sensible heat is discharged to the heat storage in the heat-accumulating burner during heat storage of high-temperature flue gas by air nozzle, become＜200 ℃ low-temperature flue gas.
As shown in Figure 5, after certain time interval was the commutation cycle, control system was sent commutation command, and the reversal valve action changes air and exhaust gases passes, and A condition becomes the B state.Under the B state, normal temperature air is heated to 800～1000 ℃ in reversal valve enters heat-accumulating burner, sprays in the stove to burn with fuel mix; Finish high-temperature flue gas after the heat exchange again through lowering the temperature behind the heat storage in the air nozzle with being heated material, and enter atmosphere by reversal valve, smoke evacuation air-introduced machine, chimney.
(the cage arrow among Fig. 4,5 is represented gas flow direction.)
Like this, by the reversal valve of under＜200 ℃ of flue-gas temperatures, working, carry out the cycle switching with certain operating frequency, switching cycle commonly used is 30～60 seconds, make two heat-accumulating burners be in the alternation state of accumulation of heat and heat release all the time, two spouts that connect two heat-accumulating burners also are in alternate supplies high temperature air and smoke evacuation duty all the time, cooperate the fuel that alternately infeeds simultaneously, finish continuous heat supply and smoke evacuation process.
In sum, hot dirty gas single heat accumulating type forging heating furnace main advantage is:
(1) because hot dirty producer gas caloric value is low, gas pressure is low, cause flame diameter big, length is short, and flame rigidity is poor, and the furnace gas thermal radiation capability of generation is strong, so temperature field in furnace is evenly distributed, the heating-furnace length direction low-temperature space or high-temperature region can not occur on the cross section, thereby heated billet surface temperature is even in stove, can not cause hot-spot.
(2) adaptable to coal gas of single heat accumulating type forging heating furnace, the cost of equipment is low, and is easy to maintenance, simple to operate.
(3) energy-saving potential is huge, and is average energy-conservation more than 25%. Thereby can discharge less carbon dioxide more than 25% to atmospheric environment, greatly alleviated the greenhouse effects of atmosphere.
(4) enlarged the flame combustion zone, the border of flame almost expands to the border of burner hearth, thereby so that the interior temperature of burner hearth is even, has improved product quality so on the one hand, has prolonged on the other hand the burner hearth life-span.
(5) in burner, do not produce owing to flame, but in furnace cavity, just begin to burn gradually, thereby combustion noise is low.
(6) adopt traditional energy-saving combustion technology, the combustion air preheat temperature is more high, and NOX content is more big in the flue gas; And the employing heat accumulating type high temperature air combustion technology, in the very high situation of combustion air preheat temperature, NOX content has but greatly reduced.
(7) be combustion with meagre oxygen in the burner hearth, cause billet oxidization burning loss to reduce.
(8) be combustion with meagre oxygen in the burner hearth, be conducive in burner hearth, produce reducing flame, to satisfy the needs of some special process.
Claims (6)
1. single heat storage type forge furnace that burns hot dirty gas, comprise the Forge Heating furnace body, the heat-accumulating burner that is connected of Forge Heating furnace body therewith, the air blast that is connected of heat-accumulating burner therewith, air-introduced machine, reversal valve, gaspipe line, air pipe line, air blast therewith, air-introduced machine, the control device that reversal valve is connected, the forge furnace chimney that is connected of reversal valve therewith, it is characterized in that described burner is for embedding the heat-accumulating burner in the Forge Heating furnace body respectively evenly distributedly, these heat-accumulating burners are by two air nozzles that have heat storage, the jet for gas that is located between these two air nozzles is formed, the stove inner opening of this air nozzle is towards the stove inner outlet of jet for gas, the outer air pipe line of the stove of this air nozzle is connected with described air blast by reversal valve, be provided with gas regulator in the gaspipe line outside the stove of this jet for gas, be provided with breast hole in the gaspipe line, the dewatering outlet, the coke cleaning mouth.
2. the single heat storage type forge furnace of burning hot dirty gas according to claim 1, it is characterized in that described gaspipe line is made up of the branch gas tube that gas main is connected with gas main therewith, described gas regulator is arranged in each branch gas tube, described breast hole, the dewatering outlet, the coke cleaning mouth is arranged in gas main and each branch gas tube, the position of gas regulator in each branch gas tube is higher than breast hole, the dewatering outlet, the position of coke cleaning mouth, gas pipe enters the downside welding decoking arm of the preceding pipeline section of burner hearth, and this decoking arm is connected with described coke cleaning mouth.
3. the single heat storage type forge furnace of burning hot dirty gas according to claim 2 is characterized in that the rear end of described branch gas tube is provided with adpting flange.
4. the single heat storage type forge furnace of burning hot dirty gas according to claim 1, the distance of the 50-80cm that it is characterized in that being separated by between described air nozzle and the jet for gas.
5. the single heat storage type forge furnace of burning hot dirty gas according to claim 1 is characterized in that the corner of described gaspipe line changes with soft fillet.
6. the single heat storage type forge furnace of burning hot dirty gas according to claim 1 is characterized in that described air blast is the frequency conversion air blast, and described air-introduced machine is the frequency conversion air-introduced machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201451551U CN201676997U (en) | 2010-03-31 | 2010-03-31 | Single heat accumulating type forging heating furnace for burning hot dirty coal gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201451551U CN201676997U (en) | 2010-03-31 | 2010-03-31 | Single heat accumulating type forging heating furnace for burning hot dirty coal gas |
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| Publication Number | Publication Date |
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| CN201676997U true CN201676997U (en) | 2010-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201451551U Expired - Lifetime CN201676997U (en) | 2010-03-31 | 2010-03-31 | Single heat accumulating type forging heating furnace for burning hot dirty coal gas |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101797622A (en) * | 2010-03-31 | 2010-08-11 | 辽宁向导科技发展有限公司 | Single heat storage type forge heating furnace for hot crude gas |
| CN103302223A (en) * | 2013-06-27 | 2013-09-18 | 彭亦楚 | Continuous forging heating furnace |
| CN106482534A (en) * | 2016-11-28 | 2017-03-08 | 无锡市莱达热工工程有限公司 | Metal smelting-furnace |
-
2010
- 2010-03-31 CN CN2010201451551U patent/CN201676997U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101797622A (en) * | 2010-03-31 | 2010-08-11 | 辽宁向导科技发展有限公司 | Single heat storage type forge heating furnace for hot crude gas |
| CN101797622B (en) * | 2010-03-31 | 2012-07-11 | 辽宁向导科技发展有限公司 | Single heat storage type forge heating furnace for hot crude gas |
| CN103302223A (en) * | 2013-06-27 | 2013-09-18 | 彭亦楚 | Continuous forging heating furnace |
| CN103302223B (en) * | 2013-06-27 | 2016-04-13 | 彭亦楚 | Continuous forging furnace |
| CN106482534A (en) * | 2016-11-28 | 2017-03-08 | 无锡市莱达热工工程有限公司 | Metal smelting-furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20101222 Effective date of abandoning: 20120711 |