CN102382664B - Step purification quality-improving machining equipment of low rank coal - Google Patents

Step purification quality-improving machining equipment of low rank coal Download PDF

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CN102382664B
CN102382664B CN201010270156.3A CN201010270156A CN102382664B CN 102382664 B CN102382664 B CN 102382664B CN 201010270156 A CN201010270156 A CN 201010270156A CN 102382664 B CN102382664 B CN 102382664B
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described
rank coal
low
step purification
processing units
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CN201010270156.3A
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CN102382664A (en
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魏远
宾文锦
何曙光
曾劲松
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湖南华银能源技术有限公司
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Abstract

The present invention discloses a step purification quality-improving machining equipment of low rank coal, which comprises a drying furnace, a thermal decomposition furnace and a chilling disc. The thermal decomposition furnace is connected with the lower part of the drying furnace. The chilling disc is connected with the lower part of the thermal decomposition furnace. The drying furnace comprises a furnace body and a rotary grate which is provided in the furnace body. The center of the rotary grate is provided with an opening. A material descending hose pipe is downwards provided below the opening. The upper part of the material descending hose pipe is one segment of hollow shaft. After the hollow shaft downwards passes through the bottom of the furnace body, the hollow shaft is connected with a driving device. Furthermore the hollow shaft rotates under driving of the driving device. The step purification quality-improving machining equipment of the low rank coal according to the invention performs physical separation on drying and pyrolysis treatment of the low rank coal through the drying furnace and the thermal decomposition furnace, remarkably enlarges a calorific value of the low rank coal and improves coal tar collection. Simultaneously a rotary bed rotation mechanism which is adopted in the equipment can cause more uniform heating for the low rank coal, thereby improving the product quality.

Description

A kind of step purification upgrading processing units of low-rank coal

Technical field

The step purification upgrading processing units that the present invention relates to a kind of low-rank coal, utilizes thermal barrier to low-rank coal convective heating, is dried and pyrolysis, removes moisture content and hydrocarbon polymer in low-rank coal.

Technical background

Chinese coal reserves account for 12% of global coal resources, China's low-rank coal standing stock account for 50% left and right of coal reserves, output accounts for 30% of current total amount, and in areal distribution, reserves major part concentrates on the Inner Mongol, Shaanxi, Xinjiang, Gansu, Shanxi, six provinces in Ningxia (district).See by the formation epoch of CHINESE COAL, with Jurassic Coal reserves maximum, account for the whole nation and verified 45% left and right of retained reserve, the coal being formed by these epoch is except only a few hard coal, and all the other great majority are the low-rank coal such as brown coal, long-flame coal, non-caking coal and weakly caking coal.Brown coal are pit coals that degree of coalification is minimum, a kind of brownish black, lacklustre grizzle between peat and pitch coal.Be rich in volatile matter, be easy to burn and smolder.World's lignite resource amount accounts for 1/3 of world's coal resources total amount.China's brown coal reserves also account for the more than 1/8 of national coal total reserves, and being mainly distributed in east Inner Mongolia, Eastern Yunnan, northeast and south China also has on a small quantity.Brown coal are due to high-moisture, high-volatile, low heat value, and the very easily feature of spontaneous combustion, thus be unsuitable for standing storage and long-distance transportation, be considered for a long time a kind of low-grade coal resource, only be used as at present near coal-mine Power Plant Fuel and near coal-mine gasified raw material, limited the rational exploitation and utilization of lignite resource.How Efficient Conversion utilizes the low-rank coal such as brown coal just to become a major issue of coal utilization.Wherein the most interestingly brown coal are converted into relatively clean liquid fuel.Effective comprehensive utilization of brown coal becomes in recent years a popular research and has the field of DEVELOPMENT PROSPECT.

At present, more to the equipment of low-rank coal dry thermal cracking both at home and abroad, mainly contain following several:

The patent No. is CN95240483.4, Quick-drying device for coal, and the raw coal cleaned coal dry and wet coal preparation factory that is applicable to dry coal preparation factory is dry dry with low-rank coal.Adopt higher cover body structure and the double-deck vibrating mass of inside and outside shell, the air distribution plate in vibrating mass is in tilted layout, and on vibrating mass, is communicated with cover body, be communicated with hotflue down, whole vibrating mass is by spring support in frame, and coal seam is under the effect of vibration force and strength, carry out caloic transmission with hot flue gas, time of drying is short, and material is not piled up, can be dry at 400~500 ℃ of comparatively high tempss, product moisture is even, and the outer water of product can be down to below 1%, and lump coal breaking is little, facility compact, simple to operate.

The patent No. is CN200920026493.0, the invention discloses a kind of superheated vapour brown coal pre-drying device.It comprises the internal heating fluidized bed drying machine with at least one built-in heat exchanger, and internal heating fluidized bed drying machine is provided with feeding device, discharge valve II and one-level cleaning apparatus at least; Wherein, built-in heat exchanger is connected with saturation steam, and the fluidized-bed of internal heating fluidized bed drying machine is connected with superheated vapour, and built-in heat exchanger is also connected with condensate system; The weary gas of internal heating fluidized bed drying machine is leaded up to pressurizing device and is returned to fluidized-bed after cleaning apparatus dedusting; Another road is emptying.

Publication number be CN101220308A low-rank coal dry with briquette production technique: the particle of low-rank coal raw coal being sent into jaw crusher (12) and is ground into < 10mm through feeder (11).Pulverizer adopts Hubei Province formula crumbling method, has higher crushing efficiency.Coal after fragmentation enters fluidized bed dryer (13), at 100 ℃~150 ℃ temperature, carry out preliminarily dried and remove part moisture, then enter the coal dust that coal pulverizer (14) is further ground into fine granularity (0.6~1.0mm), coal dust is sent into indirect heat transfer rotating drum dryer (15) again, at 150 ℃~350 ℃ temperature, carry out redrying, to remove moisture.Dried coal dust is after overcooling, and under certain temperature (30~90 ℃), the coal dust of moisture content qualified (5-18%) is quantitatively sent into main feeder by helical screw feeder, and input speed is by helical screw feeder control.Coal dust is sent into the inner roll type high pressure shaped-coal making machine (16) being made up of eccentric roller through main feeder, under high pressure (50~300MPa) efficiently by low-rank coal extrusion molding, enter finished product coal bunker (17), produce the briquette prod that user needs.

Publication number is that CN101555410A discloses a kind of method and a kind of pyrolysis plant that carries out pyrolysis.This pyrolysis plant comprises a pyrolyzer for sealing substantially, a bubbling fluidized bed vaporizer being directly connected with pyrolyzer, and one for being condensed into the gaseous matter of condensation the condenser of pyrolysis oil, and the device of fluidizing agent is provided to pyrolyzer.Arrange fluidized-bed material via pyrolyzer, and make its circulation between import and outlet.

Publication number is that CN101608126A discloses a kind of device for improving quality of coal by pyrolysis, this device comprises a rotary dryer, the feed coal that is less than 30mm for accepting dry granularity, rotary drying stove is provided with tube-in-tube structure, make raw coal with hot flue gases direct heat exchange in hot semicoke indirect heat exchange.A pyrolyzer, accepts the mixture of dried former coal and char, and makes their direct heat exchange generation pyrolysis by solid material feeder pipe line.A heating rotary kiln, for accepting the hot semicoke from pyrolyzer, and carries out hyperthermic treatment to it.This pyrolysis device for improving quality has good flexibility of operation, and the semicoke generating and quality of coke tar are also relatively good, but this device technique more complicated, operation easier is high.

In sum, the shortcoming that existing low-rank coal is dry, pyrolysis plant mainly exists following several respects: even not to the heating of low-rank coal in (1) dry thermal cracking process; (2) output is few, and energy consumption is high, and exhaust emissions amount is larger; (3) only low-rank coal is dried, does not carry out pyrolysis, do not extract coal tar; Or dry and pyrolytic process does not separate, and the amount of extracting coal tar is little.

Summary of the invention

For shortcoming above-mentioned in prior art, the invention provides a kind of step purification upgrading processing units of low-rank coal, comprise drying oven, pyrolysis oven and Quench dish, described pyrolysis oven is connected in described drying oven bottom, described Quench dish is connected in pyrolysis oven bottom, described drying oven comprises body of heater and is arranged at the rotation grate in body of heater, the center of described rotation grate is provided with opening, it is described that Open Side Down is provided with emission of baiting chute, described emission of baiting chute top is one section of tubular shaft, described tubular shaft is connected with drive unit after being passed down through the bottom of body of heater, and be rotated under the driving of described drive unit.

Described drive unit is rotated by being set in tubular shaft described in sprocket wheel on described tubular shaft outside surface or gear drive, and the horizontal spot contact bearing with inner ring and outer ring is also installed on described tubular shaft, the inner ring of described horizontal spot contact bearing is fixed on described tubular shaft, and outer ring is fixed in the supporting structure of described drying oven.

Described drive unit can be controlled the residence time of low-rank coal in drying oven by adjusting rotary speed, is also the time of convective heating.

Above described rotation grate, be also provided with fixed dam.

After described fixed dam, be also provided with material level device.

Top and bottom at described drying oven are respectively arranged with the airtight guard shield of the airtight guard shield in top and bottom, between the airtight guard shield in described top and described rotation grate, be twayblade water-lute syndeton between the airtight guard shield in described bottom and described tubular shaft.Described twayblade water-lute syndeton, comprises a continuous water cycle groove and two each and every one continuous sealing blades.

It between the tubular shaft of described drying oven and bottom pyrolysis oven feed chute, is single blade water-lute syndeton.Described single blade water-lute syndeton, comprises a continuous water cycle groove and a continuous sealing blade.

By a series of diameters, donuts different and crossover mutually form described rotation grate, and all have certain gap between adjacent annulus, for flowing through of hot gas carrier.

The top of described drying oven is also provided with feed chute, and the distance between described feed chute and rotation grate is adjustable, in order to regulation and control thickness of coal seam.

On sliding gate on described drying oven feed chute, be provided with and disclose coal lever apparatus, solve the problem of stopping up on feed chute.

On described drying oven, be also provided with purging system, described purging system utilizes the circulation gas producing in steam, nitrogen, drying process to purge the inside of described drying oven.

Described purging system comprises the multiple nozzles that are arranged on the airtight guard shield in airtight guard shield upper and lower portion, described top.

The structure of described pyrolysis oven is identical with the structure of described drying oven.

The bottom of described pyrolysis oven is also connected with Quench dish, described Quench dish comprises Quench pan burner body and is arranged at the rotatable circular steel disk in Quench pan burner body, described circular steel disk is except center is provided with opening, perforate is not set in card, it is described that Open Side Down is connected with discharger slip awaing tube, described discharger slip awaing tube top is one section of revolving tubular shaft, and this tubular shaft is connected with transmission mechanism after being passed down through the bottom of Quench pan burner body, and is rotated under the driving of described transmission mechanism.

The top of described Quench pan burner body is circular airtight guard shield, on the airtight guard shield of this circle, is provided with multiple spray nozzles, in order to quenching that the coal after pyrolysis is sprayed water.

The present invention has the following advantages:

(1) adopt drying oven to be dried low-rank coal, then with pyrolysis oven, low-rank coal is carried out to pyrolysis, dry and two processes of pyrolysis to low-rank coal are carried out physics separately, significantly improve the collection of calorific value and the coal tar of low-rank coal, temperature dry, pyrolysis is controlled, pyrolysis is not occurred in drying process;

(2) adopt revolution bed rotational structure, to low-rank coal homogeneous heating, improve product quality;

(3) by adopting fixing fixed dam, material is constantly pushed into the central authorities of dish from the outside of rotation grate, and controls material thickness by the material level device after fixed dam, fixed dam and material level device can regulate;

(4) the purification upgrading of low-rank coal, improves the clean level of product, effectively reduces the content of S in coal, N, Cl, Hg pollution element;

(5) equipment is simple, stable, flexible operation, and output is large, can large-scale industrial production.

Accompanying drawing explanation

Fig. 1 is the one-piece construction schematic diagram of the step purification upgrading processing units of low-rank coal of the present invention;

Fig. 2 is the structural representation of drying oven of the present invention;

Fig. 3 is the structural representation of Quench dish of the present invention.

Embodiment

Below in conjunction with accompanying drawing, the preferred embodiment of the present invention is elaborated.

Shown in Fig. 1, the step purification upgrading processing units of low-rank coal of the present invention comprises the drying oven 100, pyrolysis oven 200, the Quench dish 300 that set gradually from top to bottom.Low-rank coal is dried in 100 from run coal bin to drying oven, then in pyrolysis oven 200, slight pyrolysis occurs, then to Quench dish 300 by quenching.

The effect of drying oven 100 is that low-rank coal is carried out to convection drying and heating, remove the moisture in coal and can not cause chemical transformation, moisture content in coal is down to below 3%, controls drying temperature to guarantee not discharge as far as possible methane, carbon monoxide and carbonic acid gas in raw coal.

Pyrolysis oven 200 is arranged in the below of drying oven 100, and the effect of pyrolysis oven 200 is that dried low-rank coal is carried out to slight pyrolysis, makes coal that chemical reaction occur in pyrolyzer, and the volatile gases material in coal is released.

Quench dish 300 is arranged in the below of pyrolysis oven 200, and the effect of Quench dish 300 is that the low-rank coal after pyrolysis is carried out to quenching, makes it be cooled rapidly to end pyrolytic reaction.

Shown in Fig. 2, it is the structural representation of drying oven 100 in the step purification upgrading processing units of low-rank coal of the present invention.Can be found out by this figure, the primary structure of the drying oven 100 of the step purification upgrading processing units of low-rank coal of the present invention is as follows: drying oven 100 comprises body of heater, the top of body of heater is provided with an airtight guard shield 1 of circle that has certain taper, bottom is an airtight guard shield of flat circle, rotary oven castor 2 is inside housed, the equal inner lining refractory of airtight guard shield.By a series of diameters, donuts different and crossover mutually form rotation grate 2, and between each annulus, there is certain gap 1-3mm, so that hot gas carrier flows through, rotation grate 2 is downward-sloping from outside towards dish center direction, and the outer rim of rotation grate 2 is equipped with a vertical wall that is used for keeping off coal that has certain altitude for one week.

Coal dust enters from the feed chute 3 at moisture eliminator rotation grate 2 edges, has circular open to discharge for coal dust at the center of rotation grate 2.A sliding gate 4 with electric operator has been installed on feed chute 3, and the feed chute 3 of drying oven 100 inside can regulate elephant trunk outlet and the distance of rotating grate 2 by hand-hydraulic cylinder, and coordinates grate speed of rotation to control thickness of coal seam.Rotation grate 2 is interior has arranged a series of fixed dam 5, in the time that rotation grate 2 rotates, fixed dam 5 is as plough, coal is constantly pushed away toward grate center from the outside of rotation grate 2, at fixed dam 5, a material level device is housed below, the structure of material level device and the structural similitude of fixed dam, material level device is arranged on the radial direction of rotation grate 2, material level device is exactly coal seam height with the distance of rotation grate 2, the effect of material level device is that the coal of pushing fixed dam to grate center arranges, evenly to control coal seam height.Fixed dam is bolted in its supporting structure, and in the time that equipment stops, fixed dam and material level device all can regulate.In the time of the rotation of rotation grate 2, by fixed dam, coal is constantly pushed into the center tube orifice of dish from the outside of rotation grate 2, the effect of recycling gravity transmits.

Then coal falls into a vertical emission of baiting chute 6 by the central opening of rotation grate 2, and emission of baiting chute 6 outlet positions rotate the outside of grate 2 at pyrolysis oven 200.Emission of baiting chute inner liner abrasive resistant metal and refractory materials, top is revolving tubular shaft, bottom is one section of fixing pipeline, revolving tubular shaft supports whole rotation grate 2, and revolving tubular shaft is equipped with sprocket wheel or gear 7 outward, and drive unit is made up of motor, frequency transformer, step-down gear, rotate by chain or gear driven rotation grate 2, the adjustable rotating speed of drive unit, thus the residence time of low-rank coal in drying oven, the i.e. time of convective heating controlled.What those skilled in the art should understand that is, key point of the present invention is to utilize drive unit to drive rotation grate 2 to be rotated, and as for concrete which kind of type of drive that adopts, the present invention does not limit, therefore above-mentioned type of drive is only exemplary in nature, not in order to limit the present invention, in concrete enforcement, can also adopt the modes such as such as oil motor to drive.

Below sprocket wheel or gear, revolving tubular shaft is also equipped with the horizontal spot contact bearing 8 with inside and outside circle, inner-ring bearing raceway uses screw fastening on machine-processed backing plate, backing plate is fixed by a series of radially steel arms that are welded on circular hollow axle, and race bearing raceway uses screw fastening in supporting structure.Tubular shaft has three effects greatly: as carry the feed elephant trunk of low-rank coal to pyrolysis oven 200 from drying oven 100; As the support of rotation grate 2; For an integral part that drives the rotary machine of rotation grate 2 to construct.

The airtight guard shield of circle on drying oven 100 tops and rotation grate 2 are twayblade water-lute syndeton 9 between the airtight guard shield of circle of drying oven 100 bottoms and revolving tubular shaft.Twayblade water seal comprises a continuous water cycle groove and two continuous sealing blades, and sealing blade and rotation grate are connected, and water cycle groove, second seal blade and be connected with fixing shell.It between the bottom restrained line of rotary tubular shaft and emission of baiting chute, is single blade water-lute syndeton 14, single blade water seal comprises a continuous water cycle groove and a continuous sealing blade, sealing blade is connected with rotating part, and water cycle groove is connected with fixed sturcture.Water seal is the device of flexibility and changeability, for the sealing gland of interface between the rotation of equipment and fixed part is provided, to prevent that hot gas flow is from air gap leakage, safeguards the pressure of hot gas carrier.Twayblade water-lute syndeton 9 impels technique heated air all to pass through coal bed, allows the upward and outward expansion of upper and lower airtight guard shield, rotation grate.Hot gas carrier temperature is 290~320 ℃, enter the airtight guard shield of circle of rotation grate 2 bottoms by four inlet pipe 10, dried tail gas is carried out in coal seam and discharged by an outlet conduit 11 of drying oven 100 center of top, remove the particulate matter of carrying secretly in dried tail gas through cyclonic separator.

On the sliding gate of the upper and lower material elephant trunk 6 of feed chute 3 of drying oven 100, be provided with and disclose coal lever apparatus, to solve the problem of stopping up on feed chute.

The airtight guard shield in above and below of rotation grate 2 is respectively provided with an access opening 12 so that maintenance.

In addition, purging system is also installed on drying oven 100, is specially and on the airtight guard shield in top, arranges multiple nozzles 13, before drying oven 100 is stopped transport, the coal dust remaining on rotation grate 2 is purged; On the airtight guard shield in bottom, arrange multiple nozzles, be in operation, or when maintenance the coal dust between the adjacent ring gap of rotation grate 2 is purged, empty gap; Blowing medium can adopt steam, nitrogen or dry recycle gas.

Drying oven, in drying process, is the temperature of controlling drying oven by the inlet temperature of control drying oven, guarantees not occur pyrolysis in drying process.In concrete operations, can on the intake stack of drying oven, temperature point be installed, be used for measuring inlet temperature, regulate the flow of the supplemental natural gas that enters blast furnace according to the height of inlet temperature, thereby control drying oven inlet temperature.

The structure of pyrolysis oven 200 is substantially similar to drying oven 100, and just size is smaller, because the hot gas carrier temperature that enters pyrolysis oven 200 has reached 500~550 ℃, has therefore used stainless material, as 304SS etc.Isolate through cyclonic separator the coal dust of carrying secretly from pyrolysis oven 200 pyrolysis tail gas out, then through quenching column, electrostatic detarrer, by the tar extraction in pyrolysis gas out.

Shown in Fig. 3, for the structural representation of Quench dish 300 in the step purification upgrading processing units of low-rank coal of the present invention, it is identical with the structure of drying oven 100 substantially, primary structure is as follows: the top of Quench dish 300 is also an airtight guard shield 19 of circle, bottom is the circular steel disk 20 that can horizontally rotate, the airtight guard shield of fixing circle and circular steel disk composition shock chamber, from different in drying oven 100 and pyrolysis oven 200 be, rolling disc is not punchinged, and the outer rim of circular steel disk is equipped with a vertical wall that is used for keeping off coal that has certain altitude for one week.Between the fixing and pivotable parts of Quench dish 300, single blade water seal 60 is housed.Pyrolysis coal dust is fallen the edge of circular steel disk from pyrolysis oven 200 by emission of baiting chute 30, in the time that circular steel disk rotates, fixed dam 40 by pyrolysis coal dust from around be pushed to center discharger slip awaing tube 50.On circular steel disk, in airtight guard shield and center discharger slip awaing tube, be lined with certain thickness refractory materials in all.Many spray nozzles 70 are equipped with at circular airtight guard shield top, are used for spraying water, and the coal that pyrolysis oven 200 is got off carries out quenching, to stop rapidly the pyrolytic reaction of coal.The water vapor that quenching produces is sent into condenser through a pipeline 80 discharges that are positioned at shock chamber's top center, is condensed into water by glycol/water solution, loops back again quenching dish.The transmission mechanism of Quench dish 300 is similar to pyrolysis oven 200.

On the emission of baiting chute 30 of Quench dish 300 and on the sliding gate of discharger slip awaing tube 50, be provided with and disclose coal lever apparatus, to solve the problem of stopping up on feed chute.

It should be noted that, the foregoing is only preferred embodiment of the present invention, rather than restriction to technical solution of the present invention, any being equal to that the technology of the present invention feature is done, replaces or corresponding improvement, still within protection scope of the present invention.

Claims (15)

1. the step purification upgrading processing units of a low-rank coal, it is characterized in that, comprise drying oven (100), pyrolysis oven (200) and Quench dish (300), described Quench dish (300) is arranged in the below of pyrolysis oven (200), comprise Quench pan burner body and be arranged at the rotatable circular steel disk (20) in Quench pan burner body, described pyrolysis oven (200) is connected in described drying oven (100) bottom, described drying oven (100) comprises body of heater and is arranged at the rotation grate (2) in body of heater, by a series of diameters, donuts different and crossover mutually form described rotation grate (2), and between each annulus, gap is 1-3mm, the center of described rotation grate (2) is provided with opening, it is described that Open Side Down is provided with emission of baiting chute (6), described emission of baiting chute (6) top is one section of tubular shaft, described tubular shaft is connected with drive unit after being passed down through the bottom of body of heater, and be rotated under the driving of described drive unit, described drive unit drives described tubular shaft to be rotated by the sprocket wheel or the gear (7) that are set on described tubular shaft outside surface, and the horizontal spot contact bearing (8) with inner ring and outer ring is also installed on described tubular shaft, the inner ring of described horizontal spot contact bearing (8) is fixed on described tubular shaft, outer ring is fixed in the supporting structure of described drying oven (100), in rotation grate (2), be furnished with multiple fixed dams (5), in the time of rotation grate (2) rotation, fixed dam (5) constantly pushes away coal toward grate center from the outside of rotation grate (2), the back of described fixed dam (5) arranges the material level device that can evenly control coal seam height.
2. the step purification upgrading processing units of low-rank coal according to claim 1, is characterized in that, is also provided with fixed dam (5) in the top of described rotation grate (2).
3. the step purification upgrading processing units of low-rank coal according to claim 2, is characterized in that, described fixed dam (5) is also provided with material level device below.
4. the step purification upgrading processing units of low-rank coal according to claim 1, is characterized in that, the adjustable rotating speed of described drive unit, thus control the residence time of low-rank coal in drying oven.
5. the step purification upgrading processing units of low-rank coal according to claim 1, it is characterized in that, top and bottom at described drying oven (100) are respectively arranged with the airtight guard shield of the airtight guard shield in top and bottom, between the airtight guard shield in described top and described rotation grate (2), be water-lute syndeton (9) between the airtight guard shield in described bottom and described tubular shaft.
6. the step purification upgrading processing units of low-rank coal according to claim 5, is characterized in that, described water-lute syndeton (9) is twayblade water seal.
7. the step purification upgrading processing units of low-rank coal according to claim 1, is characterized in that, between described tubular shaft and the bottom restrained line of described emission of baiting chute (6), is single blade water-lute syndeton (14).
8. the step purification upgrading processing units of low-rank coal according to claim 1, it is characterized in that, by a series of diameters, donuts different and crossover mutually form described rotation grate (2), and have certain gap between adjacent annulus, for flowing through of hot gas carrier.
9. the step purification upgrading processing units of low-rank coal according to claim 1, it is characterized in that, the top of described drying oven (100) is also provided with feed chute (3), distance between described feed chute (3) and rotation grate (2) is adjustable, in order to regulation and control thickness of coal seam.
10. the step purification upgrading processing units of low-rank coal according to claim 9, is characterized in that, is provided with sliding gate (4) on described feed chute (3), on described sliding gate (4), is also provided with and discloses coal lever apparatus.
The step purification upgrading processing units of 11. low-rank coal according to claim 1, it is characterized in that, described drying oven is also provided with purging system on (100), and described purging system utilizes the circulation gas producing in steam, nitrogen or drying process to purge the inside of described drying oven (100).
The step purification upgrading processing units of 12. low-rank coal according to claim 11, is characterized in that, described purging system comprises the multiple nozzles (13) that are arranged on the airtight guard shield in airtight guard shield upper and lower portion, described top.
13. according to the step purification upgrading processing units of the low-rank coal described in claim 1-12 any one, it is characterized in that, the structure of described pyrolysis oven (200) is identical with the structure of described drying oven (100).
The step purification upgrading processing units of 14. low-rank coal according to claim 13, it is characterized in that, the bottom of described pyrolysis oven (200) is also connected with Quench dish (300), described Quench dish (300) comprises Quench pan burner body and is arranged at the rotatable circular steel disk (20) in Quench pan burner body, described circular steel disk (20) is except center is provided with opening, perforate is not set in card, it is described that Open Side Down is connected with discharger slip awaing tube (50), described discharger slip awaing tube (50) top is one section of revolving tubular shaft, this tubular shaft is connected with transmission mechanism after being passed down through the bottom of Quench pan burner body, and be rotated under the driving of described transmission mechanism.
The step purification upgrading processing units of 15. low-rank coal according to claim 14, it is characterized in that, the top of described Quench pan burner body is circular airtight guard shield (19), on the airtight guard shield of this circle (19), be provided with multiple spray nozzles (70), in order to quenching that the coal after pyrolysis is sprayed water.
CN201010270156.3A 2010-08-30 2010-08-30 Step purification quality-improving machining equipment of low rank coal CN102382664B (en)

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CN203007214U (en) * 2012-10-19 2013-06-19 神华集团有限责任公司 Rotary heating device
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CN102925174B (en) * 2012-11-06 2015-03-11 湖南华银能源技术有限公司 Large low-rank coal purifying quality-improving processing device
CN103836894B (en) * 2012-11-21 2016-12-21 神华集团有限责任公司 A kind of have rotating material bed drying oven or pyrolysis oven
CN103937519B (en) * 2013-01-22 2015-06-17 天华化工机械及自动化研究设计院有限公司 Fixedly-rotated brown coal pyrolysis integrated furnace set
CN103409151A (en) * 2013-08-20 2013-11-27 北京宝塔三聚能源科技有限公司 Lignite upgrading device
CN104774626B (en) * 2014-01-10 2017-02-15 神华集团有限责任公司 Material cooling device
CN104776701B (en) * 2014-01-10 2017-01-25 神华集团有限责任公司 Dryer or pyrolyzer having rotating feed bed
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2072652U (en) * 1990-04-18 1991-03-06 江崇侠 Non-smoke coal-saving stove
CN101429463A (en) * 2007-11-06 2009-05-13 湖南大唐先一科技有限公司 Process for processing coal with low degree of metamorphism
CN101701158A (en) * 2009-11-06 2010-05-05 湖南大唐先一科技有限公司 Process for upgrading low-rank coal in an internally heating way with heated gas carrier
CN101760215A (en) * 2008-12-23 2010-06-30 湖南华银能源技术有限公司 Step-by-step quality-improving processing technique and processing system for low-level coal

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2072652U (en) * 1990-04-18 1991-03-06 江崇侠 Non-smoke coal-saving stove
CN101429463A (en) * 2007-11-06 2009-05-13 湖南大唐先一科技有限公司 Process for processing coal with low degree of metamorphism
CN101760215A (en) * 2008-12-23 2010-06-30 湖南华银能源技术有限公司 Step-by-step quality-improving processing technique and processing system for low-level coal
CN101701158A (en) * 2009-11-06 2010-05-05 湖南大唐先一科技有限公司 Process for upgrading low-rank coal in an internally heating way with heated gas carrier

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
游伟.美国低阶煤提质技术发展概述.《化肥设计》.2009,第47卷(第4期),5-9.
美国低阶煤提质技术发展概述;游伟;《化肥设计》;20090531;第47卷(第4期);第5-9页 *

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