CN104178190A - Quality-improving treatment device for brown coal - Google Patents
Quality-improving treatment device for brown coal Download PDFInfo
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- CN104178190A CN104178190A CN201410407087.4A CN201410407087A CN104178190A CN 104178190 A CN104178190 A CN 104178190A CN 201410407087 A CN201410407087 A CN 201410407087A CN 104178190 A CN104178190 A CN 104178190A
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Abstract
The invention discloses a quality-improving treatment device for brown coal. The device comprises two hot wind channels which are arranged in opposite directions and more than two first heat conducting units which are arranged between the two hot wind channels, wherein each of the first heat conducting units comprises two rows of heat conducting groups which are arranged at intervals to form a dry distillation gas exhaust channel, and two adjacent first heat conducting units are arranged at an interval to form a material channel; each of the heat conducting groups comprises a plurality of first heat conducting tubes which are substantially arranged along the horizontal direction and first fins which are connected between two adjacent first heat conducting tubes, part of or all the first fins are provided with dry distillation gas exhaust openings, second fins are further arranged outside the dry distillation gas exhaust openings, and the second fins shield the dry distillation gas exhaust openings; a plurality of second heat conducting tubes are arranged in the material channel, each of the second heat conducting tubes is substantially arranged along the horizontal direction and the plurality of second heat conducting tubes are distributed longitudinally in the material channel in a staggered manner; and two ends of the first and second heat conducting tubes are respectively connected with the two hot wind channels.
Description
Technical field
The present invention relates to the modifying process technical field of coal, relate in particular to a kind of brown coal upgrading treatment unit.
Background technology
At present, coal is as a kind of Main Resources, and its exploitation are all the time extensively concerned.In China, according to degree of coalification from low to high, coal is divided into following several: brown coal, lower-grade metamorphic bituminous, mesometamorphism bituminous coal, meager coal and hard coal, wherein brown coal are coals that degree of coalification is minimum, account for 40% of global coal reserves, account for 13% of Chinese coal retained reserve, reserves are very huge.
Nowadays, the coal that in coal resources, degree of coalification is higher is utilized by a large amount of exploitations, and some degrees of coalification lower as brown coal etc., because moisture high (approximately 20%~60%), calorific value are low, easy-weathering and spontaneous combustion, the transportation cost of unit energy is high, is unfavorable for long distance conveying and stores.The thermo-efficiency directly burning due to brown coal lower simultaneously, and the quantity discharged of greenhouse gases is also very large, is difficult to large-scale develop and utilize, and is left unused in a large number.
In prior art, the modifying process system of brown coal is comprised to three kinds, the first is directly to contact brown coal with hot blast, it is dried, this mode is passed through air, water vapour is as carrier, drying temperature is low, thermo-efficiency is low, degree of drying is low, easy catching fire, also the high heating value volatile matter in brown coal can be taken away simultaneously, this system is owing to adopting hot blast convection drying brown coal, thereby the brown coal of primary treatment can not be piled up too much, otherwise being positioned at inner brown coal cannot process at suitable temperature, thereby processing power is little, can not to brown coal, carry out upgrading processing on a large scale, the second is to adopt coke oven to process brown coal, but it is batch operation that coke oven is processed on the one hand, environmental pollution is larger, the material that the gas producing in treating processes on the other hand, dust and so on affect upgrading temperature and then affect upgrading effect can not be discharged in time, thereby can not make coal everywhere at temperature, carry out modifying process suitably, in other words, because the gas in treating processes can not be discharged in time, thereby the temperature in the uncontrollable treating processes of these processing mechanisms of the prior art, to obtain required product of coal.The third is to adopt the vertical heat pipe arranging, by logical hot blast in heat pipe, brown coal contact or close heat pipe are realized drying and upgrading, this structure can make coal everywhere at temperature, carry out modifying process suitably, the product of coal of the high-quality obtaining, but the problem because heat pipe arranges, makes hot blast path little, and thermo-efficiency is not high.
As can be seen here, how prior art is improved, a kind of brown coal upgrading treatment unit is provided, can obtain with higher thermo-efficiency the product of coal of high-quality, this is the current technical issues that need to address in this area.
Summary of the invention
The technical problem to be solved in the present invention is, a kind of brown coal upgrading treatment unit is provided, and can obtain with higher thermo-efficiency the product of coal of high-quality.
For solving above technical problem, technical scheme of the present invention is:
A kind of brown coal upgrading treatment unit, comprise in opposite directions two hot-air channels arranging, be arranged on two above the first heat-conducting units between two hot-air channels, each first heat-conducting unit comprises two row heat conduction groups, two row heat conduction groups are spaced apart and form carbonizing gas exhaust-duct, and adjacent two the first heat-conducting unit intervals arrange and form the material channel passing through for brown coal material;
Every row heat conduction group comprises a plurality of the first heat pipes generally along horizontal direction setting and is connected to the first fin between adjacent two the first heat pipes, partly or entirely described the first fin is provided with carbonizing gas venting port, the outside of described carbonizing gas venting port is also provided with the second fin, described the second fin upper end is connected with the outside of described heat conduction group, and the outer side wall that described heat conduction group is departed from lower end extend in described material channel and by described carbonizing gas venting port and blocks;
In described material channel, be provided with a plurality of the second heat pipes, each second heat pipe is generally along horizontal direction setting, and a plurality of the second heat pipes are longitudinally interspersed in described material channel; Described the first heat pipe, the second heat pipe two ends respectively with two hot-air channel conductings.
Preferably, the length of described the first fin, the second fin is all identical with the length of described the first heat pipe.
Preferably, also comprise two the second heat-conducting units, two the second heat-conducting units lay respectively at the both sides of described two hot-air channels, each second heat-conducting unit comprises that one is listed as the 3rd heat pipe, between adjacent two the 3rd heat pipes, be connected with three fin isometric with described the 3rd heat pipe, between the first heat-conducting unit of described the second heat-conducting unit and vicinity, be spaced apart and also form a material channel, in described material channel, be longitudinally also distributed with a plurality of the second heat pipes that are crisscross arranged.
Preferably, described carbonizing gas venting port forms by porous plate being set on described the first fin.
Preferably, in described the first heat-conducting unit, in two row heat conduction groups, the arrangement mode of the first heat pipe is identical.
Preferably, two the first fins that in described the first heat-conducting unit, in two row heat conduction groups, edge is laterally closed on, one of them first fin is vertically to arrange, the lower end of another the first fin is outward-dipping.
Preferably, the second heat pipe described in described material channel and the first heat pipe of vicinity or the distance between other the second heat pipes are more than 100mm.
Preferably, the second heat pipe described in described material channel and the first fin of vicinity or the minor increment between the second fin or the 3rd fin are more than 70mm.
Preferably, also comprise carbonizing gas comb, one end and the conducting of described carbonizing gas venting port, the other end and extraneous conducting.
Preferably, be provided with baffling dividing plate in described hot-air channel, described baffling dividing plate is arranged in described hot-air channel generally along horizontal direction, by each first heat pipe of hot blast guiding, the second heat pipe in described hot-air channel.
Preferably, described the second fin is 20~35 degree with the first contiguous fin angulation.
Compared with prior art, brown coal upgrading treatment unit of the present invention is owing to comprising:
Two hot-air channels that arrange in opposite directions, be arranged on two above the first heat-conducting units between two hot-air channels, each first heat-conducting unit comprises two row heat conduction groups, two row heat conduction groups are spaced apart and form carbonizing gas exhaust-duct, and adjacent two the first heat-conducting unit intervals arrange and form the material channel passing through for brown coal material;
Every row heat conduction group comprises a plurality of the first heat pipes generally along horizontal direction setting and is connected to the first fin between adjacent two the first heat pipes, partly or entirely described the first fin is provided with carbonizing gas venting port, the outside of described carbonizing gas venting port is also provided with the second fin, described the second fin upper end is connected with the outside of described heat conduction group, and the outer side wall that described heat conduction group is departed from lower end extend in described material channel and by described carbonizing gas venting port and blocks;
In described material channel, be provided with a plurality of the second heat pipes, each second heat pipe is generally along horizontal direction setting, and a plurality of the second heat pipes are longitudinally interspersed in described material channel; Described the first heat pipe, the second heat pipe two ends respectively with two hot-air channel conductings;
Thereby when brown coal being carried out to upgrading processing, brown coal fall from material channel, because the first heat pipe, the second heat pipe are horizontally disposed transverse tube substantially, hot blast in hot-air channel enters the first heat pipe, the second heat pipe that is positioned at bottom, after the first heat pipe, the second heat pipe, flow out the first heat pipe, the second heat pipe that enters again top, hot blast path is roundabout bending constantly, the vertical heat pipe arranging than prior art, hot blast path extends greatly, has improved thermo-efficiency; In material channel, there is the lower end of the second fin to put in, when brown coal material falls, can play stirring, backgauge to prevent from entering the effect of venting port, brown coal material can be heated equably dry; The carbonizing gas exhaust-duct arranging in heat-conducting unit, can discharge the carbonizing gas producing in brown coal upgrading process in time, prevents that it from playing detrimentally affect to brown coal, thereby can access the product of coal of high-quality.
Accompanying drawing explanation
Fig. 1 is the structural representation of brown coal upgrading treatment unit embodiment of the present invention;
Fig. 2 is that the A of Fig. 1 is to sectional view;
Fig. 3 is the schematic diagram that coordinates of the first heat pipe and the first fin, the second fin in Fig. 1;
Fig. 4 is that B in Fig. 3 is to schematic diagram.
Embodiment
For making technical scheme of the present invention clearer, below in conjunction with accompanying drawing, by specific embodiment, come that the present invention is described in detail.
Referring to Fig. 1~Fig. 4, the brown coal upgrading treatment unit of the present embodiment comprises in opposite directions two hot-air channels 1 arranging, is arranged on five the first heat-conducting units 2 between two hot-air channels, each first heat-conducting unit comprises two row heat conduction groups 21, two row heat conduction groups are spaced apart and form carbonizing gas exhaust-duct 22, and adjacent two the first heat-conducting unit intervals arrange and form the material channel 3 passing through for brown coal material;
Every row heat conduction group 21 comprises a plurality of the first heat pipe 21a generally along horizontal direction setting and is connected to the first fin 21b between adjacent two the first heat pipe 21a, part or all of the first fin 21b is provided with carbonizing gas venting port 21c, the outside of carbonizing gas venting port is also provided with the second fin 21d, the second fin 21d upper end is connected with the outside of heat conduction group, and the outer side wall that heat conduction group is departed from lower end extend in material channel 3 and by carbonizing gas venting port 21c and blocks; The length of the first fin, the second fin is all identical with the length of the first heat pipe.
In material channel 3, be provided with a plurality of the second heat pipes 31, each second heat pipe 31 is generally along horizontal direction setting, and a plurality of the second heat pipes 31 are longitudinally interspersed in material channel 3, on the second heat pipe 31, fin are not set;
The first heat pipe 21a, the second heat pipe 31 two ends respectively with two hot-air channel 1 conductings, by hot-air channel 1 to its feed hot blast.
The brown coal upgrading treatment unit of the present embodiment also comprises two the second heat-conducting units 4, two the second heat-conducting units 4 lay respectively at the both sides of described two hot-air channels 1, each second heat-conducting unit 4 comprises that one is listed as the 3rd heat pipe 41, between adjacent two the 3rd heat pipes 41, be connected with three fin 42 isometric with described the 3rd heat pipe, between the first heat-conducting unit 2 of described the second heat-conducting unit and vicinity, be spaced apart and also form a material channel 3, in described material channel 3, be longitudinally also distributed with a plurality of the second heat pipes 31 that are crisscross arranged.
Wherein, porous plate 5 is set on the first fin, forms carbonizing gas venting port 21c.
Wherein, in the first heat-conducting unit, in two row heat conduction groups, the arrangement mode of the first heat pipe is identical.
Wherein, two the first fins that in the first heat-conducting unit, in two row heat conduction groups, edge is laterally closed on, one of them first fin is vertically to arrange, and the lower end of another the first fin is outward-dipping, and this is to operate more easily during fabrication in order to make.
Wherein, in material channel, the second heat pipe 31 and the first heat pipe of vicinity or the distance between other the second heat pipes are more than 100mm.
Wherein, the second heat pipe 31 described in material channel and the first fin of vicinity or the minor increment between the second fin or the 3rd fin are more than 70mm.
After carbonizing gas in the present embodiment is discharged from carbonizing gas venting port, via carbonizing gas comb (not shown), discharged to the external world.
Wherein, be provided with baffling dividing plate 11 in hot-air channel 1, baffling dividing plate 11 is arranged on described hot-air channel generally along horizontal direction, makes hot blast baffling in hot-air channel and each first heat pipe of upper guiding, the second heat pipe, increases hot blast path.
Wherein, the second fin is 20~35 degree with the first contiguous fin angulation.
The first fin arranging in the present embodiment, the second fin, the 3rd fin can play increase heat transfer area, and material is carried out to stirring, improve thermo-efficiency, keep constitutionally stable effect.
The carbonizing gas exhaust-duct arranging and venting port can reduce with brown coal the carbonizing gas producing in brown coal retort process contact as far as possible, discharge in time to the external world, have greatly improved the quality of brown coal products.
The material channel arranging owing to being longitudinally laid with the second heat pipe being crisscross arranged, has the lower end of the second fin to stretch into into simultaneously, makes brown coal material when falling, and extends its walking path, is heated more even, and thermo-efficiency is high.
In the present embodiment, because the first heat pipe, the second heat pipe, the 3rd heat pipe are horizontally disposed transverse tube substantially, these first heat pipes, the second heat pipe, the 3rd heat pipe longitudinally distribute, two ends and hot-air channel conducting, hot blast in hot-air channel enters in the first heat pipe, the second heat pipe, the 3rd heat pipe from bottom to up, form the roundabout path of bending, greatly improved hot blast path, improved thermo-efficiency.
Below be only the preferred embodiment of the present invention, it should be pointed out that above-mentioned preferred implementation should not be considered as limitation of the present invention, protection scope of the present invention should be as the criterion with claim limited range.For those skilled in the art, without departing from the spirit and scope of the present invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a brown coal upgrading treatment unit, it is characterized in that, comprise in opposite directions two hot-air channels arranging, be arranged on two above the first heat-conducting units between two hot-air channels, each first heat-conducting unit comprises two row heat conduction groups, two row heat conduction groups are spaced apart and form carbonizing gas exhaust-duct, and adjacent two the first heat-conducting unit intervals arrange and form the material channel passing through for brown coal material;
Every row heat conduction group comprises a plurality of the first heat pipes generally along horizontal direction setting and is connected to the first fin between adjacent two the first heat pipes, partly or entirely described the first fin is provided with carbonizing gas venting port, the outside of described carbonizing gas venting port is also provided with the second fin, described the second fin upper end is connected with the outside of described heat conduction group, and the outer side wall that described heat conduction group is departed from lower end extend in described material channel and by described carbonizing gas venting port and blocks;
In described material channel, be provided with a plurality of the second heat pipes, each second heat pipe is generally along horizontal direction setting, and a plurality of the second heat pipes are longitudinally interspersed in described material channel; Described the first heat pipe, the second heat pipe two ends respectively with two hot-air channel conductings.
2. brown coal upgrading treatment unit as claimed in claim 1, it is characterized in that, also comprise two the second heat-conducting units, two the second heat-conducting units lay respectively at the both sides of described two hot-air channels, each second heat-conducting unit comprises that one is listed as the 3rd heat pipe, between adjacent two the 3rd heat pipes, be connected with three fin isometric with described the 3rd heat pipe, between the first heat-conducting unit of described the second heat-conducting unit and vicinity, be spaced apart and also form a material channel, in described material channel, be longitudinally also distributed with a plurality of the second heat pipes that are crisscross arranged.
3. brown coal upgrading treatment unit as claimed in claim 1, is characterized in that, described carbonizing gas venting port forms by porous plate being set on described the first fin.
4. brown coal upgrading treatment unit as claimed in claim 1, is characterized in that, in described the first heat-conducting unit, in two row heat conduction groups, the arrangement mode of the first heat pipe is identical.
5. brown coal upgrading treatment unit as claimed in claim 1, is characterized in that, two the first fins that in described the first heat-conducting unit, in two row heat conduction groups, edge is laterally closed on, and one of them first fin is vertically to arrange, the lower end of another the first fin is outward-dipping.
6. brown coal upgrading treatment unit as claimed in claim 1, is characterized in that, the second heat pipe described in described material channel and the first heat pipe of vicinity or the distance between other the second heat pipes are more than 100mm.
7. brown coal upgrading treatment unit as claimed in claim 1, is characterized in that, the second heat pipe described in described material channel and the first fin of vicinity or the minor increment between the second fin or the 3rd fin are more than 70mm.
8. brown coal upgrading treatment unit as claimed in claim 1, is characterized in that, also comprises carbonizing gas comb, one end and the conducting of described carbonizing gas venting port, the other end and extraneous conducting.
9. brown coal upgrading treatment unit as claimed in claim 1, it is characterized in that, in described hot-air channel, be provided with baffling dividing plate, described baffling dividing plate is arranged in described hot-air channel generally along horizontal direction, by each first heat pipe of hot blast guiding, the second heat pipe in described hot-air channel.
10. brown coal upgrading treatment unit as claimed in claim 1, is characterized in that, described the second fin is 20~35 degree with the first contiguous fin angulation.
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CN201410407087.4A CN104178190B (en) | 2014-08-18 | 2014-08-18 | Brown coal upgrading treating apparatus |
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CN201410407087.4A CN104178190B (en) | 2014-08-18 | 2014-08-18 | Brown coal upgrading treating apparatus |
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CN104178190A true CN104178190A (en) | 2014-12-03 |
CN104178190B CN104178190B (en) | 2016-05-04 |
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2014
- 2014-08-18 CN CN201410407087.4A patent/CN104178190B/en not_active Expired - Fee Related
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