CN103453747B - A kind of impeller rotation-type coal drying and upgrading device - Google Patents
A kind of impeller rotation-type coal drying and upgrading device Download PDFInfo
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- CN103453747B CN103453747B CN201310342010.9A CN201310342010A CN103453747B CN 103453747 B CN103453747 B CN 103453747B CN 201310342010 A CN201310342010 A CN 201310342010A CN 103453747 B CN103453747 B CN 103453747B
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Abstract
A kind of impeller rotation-type coal drying and upgrading device, comprises housing, is arranged on the multiple rotary blades in housing, be arranged on multiple motor and the transmission mechanism of hull outside, and be separately positioned on coal feed point, coal outlet, inlet plenum and the exhaust chamber on housing.Multiple rotary blade is layered arrangement in dry housing, and the multiple rotary blades with layer are positioned on same level line, and is furnished with a transmission mechanism and motor, and rotary blade is connected with the transmission mechanism outside dry housing by rotating shaft, and transmission mechanism is by driven by motor; Adjacent two layers rotary blade is staggered.Dry gas enters in drying device from inlet plenum, discharges after coal drying through discharge chamber.Coal to be dried is fallen on rotary blade by coal feed point, and with falling on lower one deck impeller after vane rotary, successively repeatedly, the coal after bone dry is discharged at coal outlet.This device effectively can control drying time, and drying effect is good, and system is simple and reliable.
Description
Technical field
The present invention relates to a kind of coal drying and upgrading equipment, particularly relate to a kind of impeller rotation-type coal drying and upgrading device, belong to technical field of energy utilization.
Background technology
The low-grade coal resources such as the brown coal of China are very abundant, and lignite resource proved reserves reaches more than 1,000 hundred million tons, and the high-rank coals energy is exhausting, and therefore, carry out drying and upgrading very necessary to low-grade coal.The features such as but the low-quality such as brown coal, jet coal coal has, and water content is high, calorific value is low, volatile matter is high, poor heat stability, chemism are high, easy spontaneous combustion.High-moisture in low-quality coal directly increases cost of transportation, plant construction and operating cost, even affects the normal operation of process units, reduces the economy with the generating that is raw material of these coals or Coal Chemical Engineering Project.
Therefore, low-grade coal drying and upgrading is the important developing direction of low-grade coal resource.The method processed by drying reduces moisture contained in low-grade coal, so not only can improve calorie value and energy density, reduces the cost of transport, but also can improve the utilization ratio of the dry downstream unit of low-grade coal, reduces equipment scale.This can improve the market competitiveness of low-quality coal to a great extent.
Existing low-grade coal drying and upgrading device has pipes type steaming drying machine, fluid-bed drier and vibration bed drying machine etc.But pipes type steaming drying machine adopts indirect heat exchange, there is the shortcoming that heat exchange efficiency is low, and fluid-bed drier and vibrated bed drying machine adopt direct heat transfer, have the uncontrollable shortcoming of heat-exchange time, this makes low-grade coal dry run produce super-dry or not reach the phenomenons such as drying effect.
Summary of the invention
The object of this invention is to provide a kind of impeller rotation-type coal drying and upgrading device, to overcome the defects such as heat exchange efficiency in prior art is low, heat-exchange time is uncontrollable, make it have that drying effect is good, drying time can control, the simple technical characterstic of system.
Technical scheme of the present invention is as follows: a kind of impeller rotation-type coal drying and upgrading device, described device contains housing, be separately positioned on and housing enters coal bunker, coal outlet, inlet plenum and exhaust chamber, it is characterized in that: in described housing, multiple rotary blade is set, at the multiple motor of the outer setting of housing; Multiple rotary blade is layered arrangement in dry housing, and the two ends of each rotary blade are fixed on housing by bearing, and the rotating shaft with the rotary blade of layer is positioned on same level line; Rotating shaft with layer impeller is connected by the output shaft of transmission mechanism with a motor; The rotating shaft of the rotary blade of neighbouring two interlayers is parallel to each other in space, and neighbouring two-layer rotary blade is staggered.
In technique scheme of the present invention, the rotary blade number of every layer is preferably 3 ~ 6, and the minimum range L between adjacent two rotary blades is at least 3 times of coal particle diameter to be dried, and the distance between axles H of adjacent two layers rotary blade is 1.5 times of rotary blade diameter.
Technical characteristic of the present invention is also: be provided with deflector in the import department of inlet plenum; Heat-insulation layer is provided with at the outer surface of housing.Transmission mechanism preferably adopts Worm and worm-wheel gearing.Described enters the top that coal bunker is positioned at housing; Described inlet plenum is positioned at the below of coal feed point, the upper lateral part of housing; Described coal outlet is positioned at the bottom of housing; Described exhaust chamber is positioned at the top of coal outlet, the side lower part of housing.
The present invention has the following advantages and the technique effect of high-lighting: 1. because spacing between the blade number of rotary blade and rotary blade can adjust according to the granularity of coal to be dried, so for the granularity not requirement of coal to be dried, do not need to pulverize coal to be dried in advance, the drying of wide-size distribution coal can be realized, be convenient to the dried storage of coal, transport and utilize.2. can according to the granularity of coal to be dried and dried moisture requirement, the number of unrestricted choice rotary blade, and rotary blade arranges the number of plies.3. rotary blade can divide multilayer to arrange, be furnished with a motor for every layer, the rotary speed that can realize differing heights rotary blade is different, and then can control the time of contact of coal to be dried and dry gas, so dehydrating effect can be ensured, and suppress the precipitation of volatile matter of coal to be dried.
Accompanying drawing explanation
Fig. 1 is the structural principle schematic diagram of a kind of impeller rotation-type coal drying and upgrading device embodiment provided by the invention.
Fig. 2 is the A-A sectional view of Fig. 1.
In figure: 1-enters coal bunker; 2-inlet plenum; 3-deflector; 4-housing; 5-heat-insulation layer; 6-coal outlet; 7-exhaust chamber; 8-rotary blade; 9-blade; 10-rotating shaft; 11-transmission mechanism; 12-motor.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Fig. 1 is the structural principle schematic diagram of impeller rotation-type coal drying and upgrading device embodiment, arranges 6 layers altogether up and down in this embodiment.As seen from the figure, this coal drying and upgrading device comprises housing 4, be separately positioned on and housing enters coal bunker 1, coal outlet 6, inlet plenum 2 and exhaust chamber 7, be arranged on the multiple rotary blades 8 in housing, and be arranged on multiple motors 12 and the transmission mechanism 11 of hull outside.Housing 4 outer surface is provided with heat-insulation layer 5, to ensure dry temperature.Enter the top that coal bunker 1 is positioned at housing 4; Inlet plenum 2 is positioned at the below of coal feed point, the upper lateral part of housing, and its import department is provided with deflector 3, in order to even dry gas flow velocity; Coal outlet 6 is positioned at the bottom of housing, and exhaust chamber 7 is positioned at the top of coal bunker, the side lower part of housing.Inlet plenum 2 and exhaust chamber 7 are positioned at the not homonymy of housing, also can be arranged in the same side.
Rotary blade is made up of rotating shaft 10 and blade 9; Multiple rotary blade layered arrangement in housing, the rotary blade number of every layer is preferably 3 ~ 6, rotating shaft with multiple rotary blades of layer is parallel to each other and is positioned on same level line, multiple rotary blades with layer are furnished with transmission mechanism 11 and the motor 12 that is set on hull outside, and rotating shaft is connected with motor 12 by transmission mechanism; Transmission mechanism preferably adopts worm-and-wheel gear, also can adopt bevel gear transmission; Minimum spacing L with two adjacent rotary blades of layer should be greater than 3 times of coal particle diameter to be dried, with anti-sticking coal.The rotating shaft of the rotary blade of neighbouring two interlayers is parallel to each other in space, neighbouring two-layer rotary blade is staggered, namely align with a rotary blade of lower floor in the space between the rotary blade of two, upper strata, the distance between axles H of neighbouring two-layer rotary blade should be 1.5 times of rotary blade diameter; In the present invention, from the superiors to orlop, can be controlled from slow to fast by the rotating speed of the rotary blade of driven by motor, the time of contact of coal to be dried and dry gas can be controlled so freely, ensure dehydrating effect, and the precipitation of the volatile matter of coal to be dried can be suppressed.
Fig. 2 is the A-A sectional view of Fig. 1, and as seen from Figure 2, the arrangement of the present embodiment is: there are 5 rotary blades on upper strata, and there are 4 rotary blades in lower floor, and upper and lower two-layer rotary blade is staggered; The two ends of rotary blade are fixed on housing 4 by rotating shaft, and rotating shaft one end of rotary blade is through housing, and be connected with the transmission mechanism outside housing, transmission mechanism is driven by motor 12, realizes the rotation of rotary blade thus.
Claims (4)
1. an impeller rotation-type coal drying and upgrading device, described device contains housing (4), be separately positioned on and housing enters coal bunker (1), coal outlet (6), inlet plenum (2) and exhaust chamber (7), it is characterized in that: multiple rotary blade (8) is set in described housing, at the multiple motor of the outer setting of housing; Multiple rotary blade (8) layered arrangement in dry housing, the two ends of each rotary blade are fixed on housing by bearing, and the rotating shaft (10) with the rotary blade of layer is positioned on same level line; Rotating shaft with the rotary blade of layer is connected by the output shaft of transmission mechanism with a motor; The rotating shaft of the rotary blade of neighbouring two interlayers is parallel to each other in space, and neighbouring two-layer rotary blade is staggered;
The rotary blade number of every layer is 3 ~ 6, and the minimum range L between adjacent two rotary blades is at least 3 times of coal particle diameter to be dried, and the distance between axles H of adjacent two layers rotary blade is 1.5 times of rotary blade diameter.
2. according to a kind of impeller rotation-type coal drying and upgrading device according to claim 1, it is characterized in that: be provided with deflector (3) in the import department of inlet plenum (2), be provided with heat-insulation layer (5) at the outer surface of housing (4).
3. according to a kind of impeller rotation-type coal drying and upgrading device according to claim 1, it is characterized in that: described transmission mechanism adopts Worm and worm-wheel gearing.
4. according to a kind of impeller rotation-type coal drying and upgrading device described in the arbitrary claim of claims 1 to 3, it is characterized in that: described enters the top that coal bunker (1) is positioned at housing; Described inlet plenum (2) is positioned at the below of coal feed point, the upper lateral part of housing; Described coal outlet (6) is positioned at the bottom of housing, and described exhaust chamber (7) is positioned at top, the case side bottom of coal outlet.
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| CN201310342010.9A CN103453747B (en) | 2013-08-07 | 2013-08-07 | A kind of impeller rotation-type coal drying and upgrading device |
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| CN201310342010.9A CN103453747B (en) | 2013-08-07 | 2013-08-07 | A kind of impeller rotation-type coal drying and upgrading device |
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| CN103453747A CN103453747A (en) | 2013-12-18 |
| CN103453747B true CN103453747B (en) | 2016-01-13 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107883754A (en) * | 2017-12-14 | 2018-04-06 | 无锡市尚德干燥设备有限公司 | The drying tower of circulating gravity generating function |
| CN109442953A (en) * | 2018-11-16 | 2019-03-08 | 铜陵启汇新型能源有限公司 | A kind of sawdust drying equipment with pre- heat function |
| CN110779318B (en) * | 2019-03-14 | 2022-04-01 | 邢台旭阳科技有限公司 | Wet coal drying device and wet coal drying method using same |
| CN109928596B (en) * | 2019-03-28 | 2020-07-31 | 北京科技大学 | Sludge superfine synchronous deep drying device and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2106999U (en) * | 1991-01-31 | 1992-06-10 | 东北工学院 | Rotary impeller dryer |
| CN102759260A (en) * | 2012-07-12 | 2012-10-31 | 西安交通大学 | Lignite drying and upgrading system |
| CN103215099A (en) * | 2013-04-22 | 2013-07-24 | 清华大学 | Tower-type coal drying and quality improving device |
| CN203518496U (en) * | 2013-08-07 | 2014-04-02 | 清华大学 | Impeller rotary type coal drying upgrading device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102345972B (en) * | 2010-07-29 | 2014-07-02 | 绿色科技有限公司 | Drying machine |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2106999U (en) * | 1991-01-31 | 1992-06-10 | 东北工学院 | Rotary impeller dryer |
| CN102759260A (en) * | 2012-07-12 | 2012-10-31 | 西安交通大学 | Lignite drying and upgrading system |
| CN103215099A (en) * | 2013-04-22 | 2013-07-24 | 清华大学 | Tower-type coal drying and quality improving device |
| CN203518496U (en) * | 2013-08-07 | 2014-04-02 | 清华大学 | Impeller rotary type coal drying upgrading device |
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