CN2494713Y - Coal grinding dynamic separator - Google Patents

Coal grinding dynamic separator Download PDF

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Publication number
CN2494713Y
CN2494713Y CN 01206828 CN01206828U CN2494713Y CN 2494713 Y CN2494713 Y CN 2494713Y CN 01206828 CN01206828 CN 01206828 CN 01206828 U CN01206828 U CN 01206828U CN 2494713 Y CN2494713 Y CN 2494713Y
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China
Prior art keywords
separator
contained
meal
cone
sleeve
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Expired - Lifetime
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CN 01206828
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Chinese (zh)
Inventor
何亚民
魏勇
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Chengdu Leejun Industrial Co Ltd
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Chengdu Leejun Industrial Co Ltd
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Priority to CN 01206828 priority Critical patent/CN2494713Y/en
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Publication of CN2494713Y publication Critical patent/CN2494713Y/en
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Abstract

In the current powder selection machines, the separators do not have rotors, the classification area is narrow, the fineness of the coal powder is uncontrollable, the quality of the coal powder cannot meet relevant requirement, the power is large, the equipments are severely worn, and the output is low. The powder selection machine consists of an air feeding and coarse powder collecting devices arranged at the lower section, a separation device arranged at the middle section, and a power drive and fine powder collecting devices arranged at the upper section; the lower section is an inner layered sleeve and an outer layered sleeve; one sleeve is an air inlet sleeve and the other is a coarse powder collecting sleeve; the middle section consists of an inner layered and an outer layered reverse cones and separators arranged on the top of them; the wall of the outer layered cone is a containing shell, with the lower end connected with the outer layered sleeve and the upper end connected with the separator shells; the fine powder collecting devices are arranged on the top of the separators. The utility model is characterized in that the separators consist of stationary blades arranged in their outer shell and rotors with irregular blades provided for the end of the output shaft of a reducer arranged in the central area of the inner side of the blades, and has advantages of wide classification area, easily controllable fineness, high selection quality, large output and low energy consumption, low equipment abrasion rate and convenience in maintenance.

Description

Dynamic coal milling powder-selecting machine
Technical field:
The utility model relates to a kind of coal power separator.
Background technology:
At present at the coal dust preparation system of usefulness, employing all are static powder concentrators, this equipment is made up of independent mill separator and fine powder collector.Because the blade of this machine on mill separator top annular wall, it is vertical rectangle stator blade, the separation of dust is entirely by from bottom to top the cyclonic air flow and the reflex of blade, thereby stepped zone is narrow and small, fineness of pulverized coal is wayward, and grading effect is relatively poor, and the finished product coal dust does not reach the fineness requirement of kiln with coal dust, yield poorly the cost height.Owing to the influence of eddy current, equipment attrition is serious simultaneously, and energy consumption is big, black box is difficult to maintenance again.
Summary of the invention:
Goal of the invention of the present utility model is: overcome the above-mentioned shortcoming that present static powder concentrator exists, for providing a kind of graded region field width, fineness of pulverized coal, the user is convenient to control, the effectiveness of classification height, the production efficiency height, product cost is low, the equipment attrition rate is low, convenient for maintaining, integrate and select powder and the dynamic coal milling powder-selecting machine that gathers dust.
Goal of the invention of the present utility model realizes by implementing following technical proposals: dynamic coal milling powder-selecting machine, by the coal dust disconnecting gear of the air-supply that is contained in its hypomere (containing material gas), be contained in forming of its epimere by motor and power drive and fines collection device that the coupling reductor is formed with meal gathering-device, the section of being mounted in it; Air-supply and meal gathering-device are the sleeves double-deck inside and outside, and one of them sleeve is made air intake (containing material gas) tube, and another sleeve is then made the meal surge drum; The coal dust disconnecting gear in stage casing is made up of inside and outside two-layer inverted cone and the separator that is contained in its top, and outer field cone is a device case, and its lower end connects the outer layer sleeve of air-supply and meal gathering-device, and the upper end connects the separator outer casing; The fines collection device is contained in the separator top; It is characterized in that: in coal dust disconnecting gear, be positioned at the separator at inside and outside circle cone top, by the stator blade that is contained in one week of its enclosure level and be positioned at the rotor that all stator blades inboard, center be installed in the speed reducer output shaft end and formed.Additional technical feature is: 1. be contained in the rotor on the speed reducer output shaft, be by being contained in the following guiding cone that output shaft end is just being put, and will be contained in the support link of the rotor blade between upper and lower plates and output shaft by pull bar and join together and constitute cage rotor, this rotor upper end is contained on the top board of separator, and the lower end is contained on the lower plate of separator; 2. the cage rotor blade in the separator is that flaabellum shape or triangle, interior corner dimension are the 2-85 degree, the special-shaped blade that length and interior angle are inversely proportional to.3. be contained in the fines collection device at coal dust disconnecting gear top, constitute by the blast pipe that connects whirlwind tube (fines collection tube) and last company down.4. the inner core in air-supply and meal gathering-device is when making the meal surge drum, the lower port of the internal layer inverted conical housing in the separator then, directly and the inner core under it be communicated with; 5. when air-supply is made the air intake tube with the inner core in the meal gathering-device, the lower port place of the internal layer inverted conical housing in separator then, shunting and the deflection cone of collecting the meal effect have been set, this cone is suspended on the stator blade lower end, and is formed with the meal whereabouts passage of certain interval between the port of internal layer cone shell.
Advantage of the present utility model is: because in the coal dust disconnecting gear of stage casing, be provided with the cage rotor that is positioned at separator, make the separating effect of powder concentrator that qualitative leap take place, not only enlarged the stepped zone width, and the fineness that makes coal dust is easy to control, grading effect obviously improves, the readymade coal powder yield is greatly improved, and product cost and energy consumption all significantly reduce, equipment attrition is improved effectively, it is convenient that maintenance also becomes, and is one because collection selects powder and gathers dust, and device operation operation is all very convenient.
Description of drawings:
Fig. 1 is the utility model structural representation of urceolus air intake;
Fig. 2 is inner core air intake the utility model structure sectional side elevation;
Fig. 3 is the utility model schematic appearance; Mark among the figure: 1 is inner core, and 2 is urceolus, and 3 is the outer cone device case, and 4 is the female cone housing, 5 is the gas split channel, and 6 is separator shell, and 7 is stator blade, and 8 is rotor blade, 9 are following deflection cone, and 10 be output shaft, and 11 are and reductor that motor mates, and 12 is deflection cone, 13 is lower plate, and 14 is upper plate, and 15 is the meal passage, 16 is pull bar, and 17 is the fines collection device, and 18 is whirlwind tube (fines collection tube), 19 is blast pipe, and 20 are fixing steel wire, and 21 is the upper and lower plates support link.
The specific embodiment:
Embodiment 1: this machine of inner core air intake dynamic coal milling powder-selecting machine hypomere is air-supply and meal gathering-device, and its inner core is an air intake tube 1, and urceolus is a meal surge drum 2; The stage casing is a coal dust disconnecting gear, deflection cone 12 is equipped with at its inverted female cone housing 4 lower ending opening places, outer cone housing 3 is a crust of the device, its lower end connects the housing of meal surge drum 2, inside and outside circular cone tube 3,4 top is a separator, it is by housing 6, dress is within it along the stator blade 7 in a horizontally disposed week, and the rotor that is contained in the stator blade core is formed, this rotor is by the following guiding cone 9 that is contained in speed reducer output shaft 10 front ends, and by drawing 16 the support link 21 of upper and lower plates of rotor blade 8 and output shaft 10 will be housed join together and constitute, and be contained in the upper and lower plates 14 of separator, between 13, fixedly steel wire 20 will be suspended on the deflection cone 12 below the stator 7, be fixed on the lower port place of female cone housing 4, and form meal passage 15 with this cone lower port; The drive unit of separator is made up of the reductor of motor that is contained in its top and coupling, and the output shaft 10 of reductor 11 is promptly as the rotating shaft of rotor; Be contained under 17 in the fines collection device at separator top and connect whirlwind tube 18, last platoon tracheae 19; So constituted to select powder and gather dust and be the energy-efficient powder concentrator of one.
It selects the powder operation principle to be: contain the air-flow of expecting powder and enter this machine by 1 time end entrance of inner core, flow along inside and outside circle cone shell 3 in deflection cone 12 punishment, 4 spatial channel enters separator, because rotor rotation under reductor 11 drives, containing the material air-flow separates under the effect of rotor and stator, coarse dust is falling in female cone body 4 under the gravity effect, and through the clearance channel 15 of 4 of deflection cone 12 and female cones, separate from discharging opening along outer meal surge drum 2, fine powder then enters whirlwind tube 18 by fines collection device 17 along pipeline, and tail gas is discharged by blast pipe 19.
Embodiment 2: urceolus air intake dynamic coal milling powder-selecting machine
This machine hypomere is air-supply and meal gathering-device, its urceolus is an air intake tube 2, inner core is a meal surge drum 1, the stage casing is a coal dust disconnecting gear, the lower port of its inverted female cone housing 4, direct and internal layer meal surge drum 1 fuses, compare with embodiment 1, no deflection cone 12, outer cone housing 3 is a crust of the device, its lower end connects the housing of outer air intake tube 2, inner/outer tube 3,4 ends are separator, and it is by housing 6, dress is within it along the stator blade 7 in a horizontally disposed week, and the rotor that is contained in all stator blade cores is formed, this rotor is by the following guiding cone 9 that is contained in speed reducer output shaft 10 front ends, and will be contained in the support link 21 of the rotor blade 8 between upper and lower plates and output shaft 10 by pull bar 16 and join together and constitute, and is contained in the upper and lower plates 14 of separator, between 13; The drive unit of separator is made up of motor that is contained in its top and coupling reductor 11, and reductor 11 output shafts 10 are the rotating shaft of rotor; Be contained in the fines collection device 17 at separator top, connect whirlwind tube 18, last platoon tracheae 19 down; So constitute to collect to select powder and gather dust and be the energy-efficient powder concentrator of one.
Among above-mentioned two kinds of embodiment: fineness of pulverized coal is easy to adjust, can directly just can control the finished product fineness of pulverized coal very easily by adjusting the rotor of powder separator rotating speed; Because dynamically the classification performance of powder concentrator is good, therefore can improve coal grinding system output significantly, the dynamic powder concentrator of test shows: when its power of motor is 7.5KW, when rotor speed was 350-380rpm, air quantity was 200m in the mill 3/ min produces fineness of pulverized coal below 3 μ, its output reach the 4-5 ton/hour; When power of motor is 30KW, when rotor speed was 260-290rpm, air quantity was 700 in the mill 3Min, produce the following coal dust ability of 3 μ reach the 14-16 ton/hour.Therefore, the existing static powder concentrator coal grinding system output of coal grinding system PR improves 10%-15%, and the per unit area yield power consumption reduces 5%-8%; This machine integrates and selects powder to gather dust, and volume is little, in light weight, is convenient to technology arrangement.

Claims (7)

1, a kind of dynamic coal milling powder-selecting machine by the coal dust disconnecting gear of the air-supply that is contained in its hypomere (containing material gas) with meal gathering-device, the section of being mounted in it, is contained in being made up of motor and power drive and fines collection device that the coupling reductor is formed of its epimere; Air-supply and meal gathering-device are the sleeves double-deck inside and outside, and one of them sleeve is made air intake (containing material gas) tube, and another sleeve is then made coal dust meal surge drum; The coal dust disconnecting gear in stage casing is made up of inside and outside two-layer inverted cone and the separator that is contained in its top, and outer field cone is a device case, and its lower end connects the outer layer sleeve of air-supply and meal gathering-device, and the upper end connects the separator outer casing; The fines collection device is contained in the separator top; It is characterized in that: in coal dust disconnecting gear, be positioned at the separator at inside and outside circle cone top,, and be positioned at the rotor that all stator blades inboard, center be installed in the speed reducer output shaft end and form by the stator blade (7) that is contained in one week of its enclosure level.
2, according to the described a kind of dynamic coal milling powder-selecting machine of claim 1, it is characterized in that: be contained in the rotor on the speed reducer output shaft (10), be by being contained in the following guiding cone (9) that is just putting output shaft (10) end, and will be contained in the support link (21) of rotor blade (8) between upper and lower plates (14) (13) and output shaft (10) by pull bar (16) and join together and constitute cage rotor, this rotor upper end is contained on the top board (14) of separator, and the lower end is contained on the lower plate (13) of separator.
3, according to the described a kind of dynamic coal milling powder-selecting machine of claim 2, it is characterized in that: the cage rotor blade (8) in the separator, be flaabellum shape, interior angle is the 2-85 degree, the special-shaped blade that length and interior corner dimension are inversely proportional to.
4, according to the described a kind of dynamic coal milling powder-selecting machine of claim 2, it is characterized in that: the cage rotor blade (8) in the separator, be triangle, interior angle is the 2-85 degree, the special-shaped blade that length and interior corner dimension are inversely proportional to.
5, according to claim 3,4 described a kind of dynamic coal milling powder-selecting machines, it is characterized in that: be contained in the fines collection device (17) at coal dust disconnecting gear top, constitute by the blast pipe (19) that connects tornadotron (fines collection tube) (18) and last company down.
6, according to the described a kind of dynamic coal milling powder-selecting machine of claim 5, it is characterized in that: the inner core (1) in air-supply and meal gathering-device is during as the meal surge drum, the lower port of the internal layer inverted conical housing (4) in the separator then, directly and the inner core (1) under it be communicated with.
7, according to the described a kind of dynamic coal milling powder-selecting machine of claim 5, it is characterized in that: when air-supply is made the air intake tube with the inner core (1) in the meal gathering-device, the lower port place of the internal layer inverted conical housing (4) in separator then, shunting and the deflection cone (12) of collecting the meal effect have been set, this cone is suspended on the lower end of stator blade (7), and is formed with the meal whereabouts passage (15) of certain interval between the port of internal layer cone shell (4).
CN 01206828 2001-07-13 2001-07-13 Coal grinding dynamic separator Expired - Lifetime CN2494713Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 01206828 CN2494713Y (en) 2001-07-13 2001-07-13 Coal grinding dynamic separator

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Application Number Priority Date Filing Date Title
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101786082A (en) * 2010-03-25 2010-07-28 天津水泥工业设计研究院有限公司 Up feeding and down feeding double-grading type high-efficient powder concentrator
CN1953823B (en) * 2004-05-13 2010-08-04 巴布考克日立株式会社 Classifier, vertical crusher having the classifier, and coal fired boiler apparatus having the vertical crusher
CN102032585A (en) * 2010-12-01 2011-04-27 云南电力技术有限责任公司 Integrated pulverized coal separation and concentration device of pulverized-coal boiler
CN102123798A (en) * 2008-08-12 2011-07-13 勒舍有限公司 Process for sifting a mixture of a milled material and a fluid, and mill sifter
CN101808753B (en) * 2007-09-27 2013-03-20 巴布考克日立株式会社 Classification device, standing pulverizer using the classification device, and coal burning boiler apparatus
CN104549780A (en) * 2015-01-14 2015-04-29 绵阳蓝奥重型机械制造有限公司 Novel dual-transmission combined efficient sorting machine

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1953823B (en) * 2004-05-13 2010-08-04 巴布考克日立株式会社 Classifier, vertical crusher having the classifier, and coal fired boiler apparatus having the vertical crusher
CN101808753B (en) * 2007-09-27 2013-03-20 巴布考克日立株式会社 Classification device, standing pulverizer using the classification device, and coal burning boiler apparatus
CN102123798A (en) * 2008-08-12 2011-07-13 勒舍有限公司 Process for sifting a mixture of a milled material and a fluid, and mill sifter
US9162256B2 (en) 2008-08-12 2015-10-20 Loesche Gmbh Method for classifying a ground material-fluid mixture and mill classifier
CN101786082A (en) * 2010-03-25 2010-07-28 天津水泥工业设计研究院有限公司 Up feeding and down feeding double-grading type high-efficient powder concentrator
CN102032585A (en) * 2010-12-01 2011-04-27 云南电力技术有限责任公司 Integrated pulverized coal separation and concentration device of pulverized-coal boiler
CN102032585B (en) * 2010-12-01 2013-03-20 云南电力技术有限责任公司 Integrated pulverized coal separation and concentration device of pulverized-coal boiler
CN104549780A (en) * 2015-01-14 2015-04-29 绵阳蓝奥重型机械制造有限公司 Novel dual-transmission combined efficient sorting machine

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee

Owner name: CHENGDU LIJUN INDUSTRIAL CO., LTD.

Free format text: FORMER NAME: CHENGDU CITY LIJUN INDUSTRIAL CO., LTD.

CP03 Change of name, title or address

Address after: Sichuan city of Chengdu province Wuhou District Vuko east two road 5, zip code: 610045

Patentee after: Chengdu Leejun Industrial Co., Ltd.

Address before: He Yamin, 996, Wenchang Road, Wuhou District bridge, Chengdu, Sichuan Province, 610043

Patentee before: Lijun Industry Co., Ltd., Chengdu City

C17 Cessation of patent right
CX01 Expiry of patent term

Expiration termination date: 20110713

Granted publication date: 20020612