CN103205298A - Integrated briquette coal conveying, cooling and curing process and device - Google Patents
Integrated briquette coal conveying, cooling and curing process and device Download PDFInfo
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- CN103205298A CN103205298A CN2013101226532A CN201310122653A CN103205298A CN 103205298 A CN103205298 A CN 103205298A CN 2013101226532 A CN2013101226532 A CN 2013101226532A CN 201310122653 A CN201310122653 A CN 201310122653A CN 103205298 A CN103205298 A CN 103205298A
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Abstract
The invention discloses an integrated briquette coal conveying, cooling and curing process and device. By using the process and device disclosed by the invention, the temperature of a hot briquetting coal of lignite can be reduced, meanwhile, fine powder attached on the surface of the briquette coal is reduced, and the surface oxidizability of the briquette coal is lowered, thus the breakage rate in the briquette coal cooling process is reduced, the ball forming rate of the briquette coal is increased, the oxidizability of the briquette coal is improved, and the spontaneous combustion phenomenon is reduced. Compared with the prior art, the integrated briquette coal conveying, cooling and curing process and device have the characteristics of small floor area and high cooling efficiency; and by using the integrated briquette coal conveying, cooling and curing process and device, the dust flying condition in the conveying process can be effectively reduced, the surface of the briquette coal is solidified, and the spontaneous combustion probability caused during accumulation is reduced.
Description
Technical field
The present invention relates to solid materials cooling transportation art, particularly a kind of brown coal hot-forming after, technology and device thereof that moulded coal is carried cooling, solidified.
Background technology
Brown coal upgrading technology is the new direction of current energy development, and the brown coal after the upgrading generally adopt hot press molding method, to improve its energy density, reduces spontaneous combustion, reduces dust pollution, improves transportation radius, improves the scope of application.Hot-forming moulded coal is before cooling off fully, and its ultimate compression strength, fall strength of briquette are all very low, but if after moulded coal cooled off fully, its ultimate compression strength, fall strength of briquette were all significantly promoted.Can find by a large amount of experiments, adopt the moulded coal after hot-forming, under hot state, have following problem:
1, its burning-point of brown coal itself is lower, volatile matter is high, easily spontaneous combustion, and hot-forming moulded coal is being deposited in together before the cooling fully, because the release of its internal heat and the burning-point of brown coal own is lower, moulded coal top layer oxidation etc. causes its very easily spontaneous combustion.
2, present, hot-forming both at home and abroad moulded coal cools off, and mainly relies on the spontaneous combustion cooling: the moulded coal after hot-forming, and adopt the network chain handling equipment to carry by sieving the back, adopt open type in the course of conveying, by natural wind moulded coal is played cooling effect.In order to make moulded coal can access abundant cooling before entering the stockyard, its network chain handling equipment is generally longer.This kind type of cooling exists problems, as: 1) moulded coal is by after sieving, and its top layer attached one deck fine powder, and this fine powder follows moulded coal to be transported to the stockyard.The very easily oxidation of dried brown coal fine powder, spontaneous combustion have impelled the moulded coal generation spontaneous combustion situation of stacking to the stockyard.2) the moulded coal cooling system floor space of this method is big, cooling performance is poor.
Summary of the invention
At the problems referred to above, the invention provides technology and device thereof that a kind of integrated form moulded coal is carried cooling, solidified, cooling efficiency of the prior art is low to solve, the moulded coal problem of spontaneous combustion very easily.
To achieve these goals, technical scheme of the present invention is as follows:
The technology that a kind of integrated form moulded coal is carried cooling, solidified is characterized in that, may further comprise the steps, and in the moulded coal course of conveying, earlier moulded coal is carried out the high speed wind, with moulded coal surface institute the fine powder of attached easy oxidation, easy airborne dust blow away;
Then at moulded coal surface spray shape water, it is cooled off at a high speed at short notice and be unlikely to make the moulded coal surface that utmost point cold crackingization takes place;
The moulded coal that the surface is sprayed with spray water xi carries out the low speed wind again, and the temperature of moulded coal is reduced gradually.
The wind speed of described high speed winds is: 2-10m/s, the wind speed of described low velocity wind is: 0.1-3m/s.
The device that a kind of integrated form moulded coal is carried cooling, solidified, it is characterized in that, comprised the delivery system of carrying the moulded coal effect, described delivery system is disposed with high speed wind section, spray form water section and solidifies air-cooled section along throughput direction, described high speed wind section is provided with the high speed winds blowing apparatus that blows away in order to the fine powder with the moulded coal surface, described spray form water section is provided with to the spray form water device of moulded coal surface spray shape water, air-cooled section curing air cooling equipment that is provided with in order to the temperature that reduces moulded coal of described curing.
Further, described delivery system is network chain formula delivery system.
In a preferred embodiment of the invention, described high speed winds blowing apparatus comprises high-speed fan and bellows, and high-speed fan connects air intake passage, and the air outlet of air intake passage is positioned at bellows and is arranged under the network chain of network chain formula delivery system.Further, the top of described bellows is provided with the dust collection cover corresponding with the air outlet of air intake passage, and dust collection cover is connected with an air-inducing passage.Further, the front end of described air intake passage is provided with air-distributing device, and this air-distributing device comprises inclination aerofoil and horizontal air distribution plate.
In a preferred embodiment of the invention, described spray form water device comprises the upper and lower injection spray pipe that is separately positioned on the upper and lower side of network chain, all is arranged at intervals with some nozzles on the described upper and lower injection spray pipe.Further, described spray form water device comprises water smoke water yield trip switch.
In a preferred embodiment of the invention, described curing air cooling equipment comprises the air-cooled mechanism of several modularizations, the air-cooled mechanism of described modularization comprises the cooling casing and is arranged on the cooling quench machine in order to dry towards the network chain direction that cools off on the casing, is the formula network chain that is inclined upwardly through the network chain in the described cooling casing.Further, when the air-cooled mechanism of modularization was two or more, the formula that the is inclined upwardly network chain of adjacent two air-cooled mechanisms of modularization was laying structure up and down near end, in order to play the effect of stirring.Further, the cooling casing of the air-cooled mechanism of adjacent described modularization joins end to end.Further, being provided with the inclination air deflector of several direction unanimities in the described cooling casing, is the dedusting mouth along the lateral port of the air-cooled mechanism of outermost modularization of described inclination air deflector guiding.
In a preferred embodiment of the invention, described high speed wind section, the corresponding network chain travelling speed of spray form water section are higher than air-cooled section corresponding network chain travelling speed of curing.
In a preferred embodiment of the invention, also comprise cleaning apparatus, described cleaning apparatus comprises fly-ash separator, and this fly-ash separator is connected with dust collection cover by air-inducing passage.
Adopt the present invention that moulded coal is carried cooling, solidified, the temperature of the brown coal moulded coal after hot-forming is reduced, reduce simultaneously moulded coal surface institute attached fine powder, reduction moulded coal surface oxidation performance, thereby reduce the breakage rate in the moulded coal process of cooling, improve the whole ball rate of moulded coal, improve the antioxidant property of moulded coal, reduce spontaneous combustion.
Compared with prior art, the present invention has the advantages that floor space is little, cooling efficiency is high, and the present invention can effectively alleviate the grey situation of poplar in the course of conveying, the probability of spontaneous combustion when making the moulded coal surface produce curing, reduction accumulation.
Characteristics of the present invention can be consulted the detailed description of the graphic and following better embodiment of this case and be obtained to be well understood to.
Description of drawings
Fig. 1 is the device synoptic diagram that integrated form moulded coal of the present invention is carried cooling, solidified.
Fig. 2 be among Fig. 1 A-A to sectional view.
Fig. 3 be among Fig. 1 B-B to sectional view.
Fig. 4 is the synoptic diagram of the air-cooled mechanism of modularization.
Embodiment
For technique means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, further set forth the present invention below in conjunction with specific embodiment.
Referring to Fig. 1, the device that a kind of integrated form moulded coal is carried cooling, solidified has comprised the delivery system 100 of carrying the moulded coal effect, and this delivery system is disposed with high speed wind section 200, spray form water section 300 and solidifies air-cooled section 400 along throughput direction.High speed wind section is provided with the high speed winds blowing apparatus, and moulded coal is carried out the high speed wind, with moulded coal surface institute the fine powder of attached easy oxidation, easy airborne dust blow away, and send into cleaning apparatus.Spray form water section is provided with to the spray form water device of moulded coal surface spray shape water, makes its quick cooling and be unlikely to make moulded coal surface that utmost point cold crackingization takes place at short notice.Solidify air-cooled section and be provided with the curing air cooling equipment, by low velocity wind, the temperature of moulded coal is reduced gradually.
In the present embodiment, delivery system is network chain formula delivery system.For making the moulded coal cooling performance better, in network chain formula course of conveying, adopt the form of segmentation stirring, material is turned over individual.Network chain formula delivery system is divided into two big sections, and the leading portion that high speed wind section 200 and spray form water section 300 all are arranged on network chain formula delivery system solidifies air-cooled section 400 back segment that is arranged on network chain formula delivery system.
Referring to Fig. 2, the high speed winds blowing apparatus comprises high-speed fan 210 and bellows 220, and high-speed fan connects air intake passage 230, and the air outlet of air intake passage is positioned at bellows and is arranged under the network chain of network chain formula delivery system.In the present embodiment, the front end of air intake passage is provided with air-distributing device (being air outlet), and this air-distributing device comprises inclination aerofoil 261 and horizontal air distribution plate 262, to adjust the trend of wind, improves the utilization ratio of wind.The top of bellows is provided with the dust collection cover corresponding with the air outlet of air intake passage 240, and dust collection cover 240 is connected with an air-inducing passage 250.By this high speed winds blowing apparatus moulded coal is carried out the high speed wind, with moulded coal surface institute the fine powder of attached easy oxidation, easy airborne dust blow away.The wind speed of high speed winds is: 2-10m/s.
Referring to Fig. 3, spray form water device comprises the upper and lower injection spray pipe (310,320) that is separately positioned on the upper and lower side of network chain, and upper and lower injection spray pipe (310,320) all is fixed on the support 340, all is arranged at intervals with some nozzles 330 on the upper and lower injection spray pipe.At moulded coal surface spray shape water, make its cooling at a high speed at short notice.Spray form water device comprises water smoke water yield trip switch, by regulating the water smoke water yield, prevents that the moulded coal cooling temperature is excessive, to prevent that moulded coal 500 is at extremely cold process mesexine generation crackle.
Referring to Fig. 1 and 4, solidify air cooling equipment and comprise the air-cooled mechanism of several modularizations, the air-cooled mechanism of each modularization includes cooling casing 410 and is arranged on the cooling quench machine 420 in order to dry towards the network chain direction that cools off on the casing, is the formula network chain 430 that is inclined upwardly through the network chain in the cooling casing.When the air-cooled mechanism of modularization was two or more, the cooling casing of the air-cooled mechanism of adjacent described modularization joined end to end.The formula that the is inclined upwardly network chain of adjacent two air-cooled mechanisms of modularization is laying structure up and down near end, in order to play the effect of stirring, improves cooling efficiency and cooling uniformity.Its staggered height is decided according to the moulded coal globule size is different.Guaranteeing moulded coal himself producing under the prerequisite of 180 ° of upsets in the falling process from top to bottom, highly more low more good in principle.For save energy, cooling is provided with the inclination air deflector 440 of several direction unanimities in the casing, is the dedusting mouth along the lateral port of the air-cooled mechanism of outermost modularization of described inclination air deflector guiding.The wind of producing by boasting from cooling quench machine 420 under the effect of inclination air deflector 440, by after recycle forward, come out finally by the dedusting mouth of the air-cooled mechanism of outermost modularization.Carry out the low speed wind by solidifying the moulded coal that air-cooled section 400 pairs of surfaces are sprayed with spray water xi, the temperature of moulded coal is reduced gradually.The wind speed of low velocity wind is: 0.1-3m/s.
In the present embodiment, high speed wind section, the corresponding network chain travelling speed of spray form water section are higher than solidifies air-cooled section corresponding network chain travelling speed, that is: the moulded coal ulking thickness on the network chain of high speed wind section 200 and spray form water section 300 is less than at the moulded coal ulking thickness that solidifies air-cooled section 400.
The present invention also comprises cleaning apparatus, and cleaning apparatus comprises fly-ash separator, and this fly-ash separator is connected with dust collection cover by air-inducing passage.
Adopt the present invention that moulded coal is carried cooling, solidified, the temperature of the brown coal moulded coal after hot-forming is reduced, reduce simultaneously moulded coal surface institute attached fine powder, reduction moulded coal surface oxidation performance, thereby reduce the breakage rate in the moulded coal process of cooling, improve the whole ball rate of moulded coal, improve the antioxidant property of moulded coal, reduce spontaneous combustion.
Compared with prior art, the present invention has the advantages that floor space is little, cooling efficiency is high, and the present invention can effectively alleviate the grey situation of poplar in the course of conveying, the probability of spontaneous combustion when making the moulded coal surface produce curing, reduction accumulation.
More than show and described ultimate principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and the specification sheets is principle of the present invention; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements all fall in the claimed scope of the present invention.The protection domain that the present invention requires is defined by appending claims and equivalent thereof.
Claims (15)
1. the integrated form moulded coal technology of carrying cooling, solidifying is characterized in that, may further comprise the steps, and in the moulded coal course of conveying, earlier moulded coal is carried out the high speed wind, with moulded coal surface institute the fine powder of attached easy oxidation, easy airborne dust blow away;
Then at moulded coal surface spray shape water, it is cooled off at a high speed at short notice and be unlikely to make the moulded coal surface that utmost point cold crackingization takes place;
The moulded coal that the surface is sprayed with spray water xi carries out the low speed wind again, and the temperature of moulded coal is reduced gradually.
2. integrated form moulded coal according to claim 1 is carried the technology of cooling, curing, and it is characterized in that the wind speed of described high speed winds is: 2-10m/s, the wind speed of described low velocity wind is: 0.1-3m/s.
3. an integrated form moulded coal is carried the device of cooling, curing, it is characterized in that, comprised the delivery system of carrying the moulded coal effect, described delivery system is disposed with high speed wind section, spray form water section and solidifies air-cooled section along throughput direction, described high speed wind section is provided with the high speed winds blowing apparatus that blows away in order to the fine powder with the moulded coal surface, described spray form water section is provided with to the spray form water device of moulded coal surface spray shape water, air-cooled section curing air cooling equipment that is provided with in order to the temperature that reduces moulded coal of described curing.
4. integrated form moulded coal according to claim 3 is carried the device of cooling, curing, it is characterized in that described delivery system is network chain formula delivery system.
5. integrated form moulded coal according to claim 4 is carried the device of cooling, curing, it is characterized in that, described high speed winds blowing apparatus comprises high-speed fan and bellows, high-speed fan connects air intake passage, and the air outlet of air intake passage is positioned at bellows and is arranged under the network chain of network chain formula delivery system.
6. integrated form moulded coal according to claim 5 is carried the device of cooling, curing, it is characterized in that the top of described bellows is provided with the dust collection cover corresponding with the air outlet of air intake passage, and dust collection cover is connected with an air-inducing passage.
7. integrated form moulded coal according to claim 6 is carried the device of cooling, curing, it is characterized in that the front end of described air intake passage is provided with air-distributing device, and this air-distributing device comprises inclination aerofoil and horizontal air distribution plate.
8. integrated form moulded coal according to claim 4 is carried the device of cooling, curing, it is characterized in that, described spray form water device comprises the upper and lower injection spray pipe that is separately positioned on the upper and lower side of network chain, all is arranged at intervals with some nozzles on the described upper and lower injection spray pipe.
9. integrated form moulded coal according to claim 8 is carried the device of cooling, curing, it is characterized in that described spray form water device comprises water smoke water yield trip switch.
10. integrated form moulded coal according to claim 4 is carried the device of cooling, curing, it is characterized in that, described curing air cooling equipment comprises the air-cooled mechanism of several modularizations, the air-cooled mechanism of described modularization comprises the cooling casing and is arranged on the cooling quench machine in order to dry towards the network chain direction that cools off on the casing, is the formula network chain that is inclined upwardly through the network chain in the described cooling casing.
11. the device that integrated form moulded coal according to claim 10 is carried cooling, solidified, it is characterized in that, when the air-cooled mechanism of modularization is two or more, the formula that the is inclined upwardly network chain of adjacent two air-cooled mechanisms of modularization is laying structure up and down near end, in order to play the effect of stirring.
12. the device that integrated form moulded coal according to claim 11 is carried cooling, solidified is characterized in that the cooling casing of the air-cooled mechanism of adjacent described modularization joins end to end.
13. the device that integrated form moulded coal according to claim 12 is carried cooling, solidified, it is characterized in that, being provided with the inclination air deflector of several direction unanimities in the described cooling casing, is the dedusting mouth along the lateral port of the air-cooled mechanism of outermost modularization of described inclination air deflector guiding.
14. the device that integrated form moulded coal according to claim 4 is carried cooling, solidified is characterized in that, described high speed wind section, the corresponding network chain travelling speed of spray form water section are higher than solidifies air-cooled section corresponding network chain travelling speed.
15. the device that integrated form moulded coal according to claim 6 is carried cooling, solidified is characterized in that also comprise cleaning apparatus, described cleaning apparatus comprises fly-ash separator, this fly-ash separator is connected with dust collection cover by air-inducing passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310122653.2A CN103205298B (en) | 2013-04-10 | 2013-04-10 | Integrated briquette coal conveying, cooling and curing process and device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310122653.2A CN103205298B (en) | 2013-04-10 | 2013-04-10 | Integrated briquette coal conveying, cooling and curing process and device |
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| CN103205298A true CN103205298A (en) | 2013-07-17 |
| CN103205298B CN103205298B (en) | 2014-09-10 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110452751A (en) * | 2019-09-11 | 2019-11-15 | 兖矿集团有限公司 | Moulded coal transport device and molded coal production facility with the device |
| CN111234894A (en) * | 2020-01-15 | 2020-06-05 | 西安旭旌再生资源有限公司 | Biomass power generation raw material shaping processing apparatus |
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| GB1042742A (en) * | 1961-12-19 | 1966-09-14 | Coal Industry Patents Ltd | Method of cooling briquettes |
| US4396394A (en) * | 1981-12-21 | 1983-08-02 | Atlantic Richfield Company | Method for producing a dried coal fuel having a reduced tendency to spontaneously ignite from a low rank coal |
| US4409067A (en) * | 1982-05-05 | 1983-10-11 | Peabody Coal Company | Quenching method and apparatus |
| CN201473054U (en) * | 2009-08-06 | 2010-05-19 | 杭州华源电力环境工程有限公司 | Pebble coal air-cooled conveyor |
| CN101906342A (en) * | 2010-07-28 | 2010-12-08 | 神华集团有限责任公司 | Cooling device and cooling method for granular material |
| CN201785373U (en) * | 2010-08-25 | 2011-04-06 | 山东天力干燥设备有限公司 | System for upgraded brown coal forming |
| CN202188743U (en) * | 2011-07-19 | 2012-04-11 | 荆门市格林美新材料有限公司 | Superfine powder reduction furnace |
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2013
- 2013-04-10 CN CN201310122653.2A patent/CN103205298B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1042742A (en) * | 1961-12-19 | 1966-09-14 | Coal Industry Patents Ltd | Method of cooling briquettes |
| US4396394A (en) * | 1981-12-21 | 1983-08-02 | Atlantic Richfield Company | Method for producing a dried coal fuel having a reduced tendency to spontaneously ignite from a low rank coal |
| US4409067A (en) * | 1982-05-05 | 1983-10-11 | Peabody Coal Company | Quenching method and apparatus |
| CN201473054U (en) * | 2009-08-06 | 2010-05-19 | 杭州华源电力环境工程有限公司 | Pebble coal air-cooled conveyor |
| CN101906342A (en) * | 2010-07-28 | 2010-12-08 | 神华集团有限责任公司 | Cooling device and cooling method for granular material |
| CN201785373U (en) * | 2010-08-25 | 2011-04-06 | 山东天力干燥设备有限公司 | System for upgraded brown coal forming |
| CN202188743U (en) * | 2011-07-19 | 2012-04-11 | 荆门市格林美新材料有限公司 | Superfine powder reduction furnace |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110452751A (en) * | 2019-09-11 | 2019-11-15 | 兖矿集团有限公司 | Moulded coal transport device and molded coal production facility with the device |
| CN111234894A (en) * | 2020-01-15 | 2020-06-05 | 西安旭旌再生资源有限公司 | Biomass power generation raw material shaping processing apparatus |
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