CN202893678U - Novel movable and static combined rotary separator for powder coal - Google Patents
Novel movable and static combined rotary separator for powder coal Download PDFInfo
- Publication number
- CN202893678U CN202893678U CN 201220596619 CN201220596619U CN202893678U CN 202893678 U CN202893678 U CN 202893678U CN 201220596619 CN201220596619 CN 201220596619 CN 201220596619 U CN201220596619 U CN 201220596619U CN 202893678 U CN202893678 U CN 202893678U
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Abstract
The utility model relates to a novel movable and static combined rotary separator for powder coal. The novel movable and static combined rotary separator is characterized in that a hollow shaft is arranged outside a coal falling pipe, a rotor is arranged on the outer periphery of the lower end of the hollow shaft, a movable blade is arranged outside the rotor, a static blade is arranged outside the movable blade, a gap is reserved between the movable blade and the static blade, the rotor is arranged in a casing of a powder selection machine, an inspection door is arranged on one side of the casing of the powder selection machine, a coal powder baffle plate shaped in an inverted cone is arranged at the lower end of the coal falling pipe, a powder return cone pipe shaped in an inverted cone is connected at the lower end of the static blade, a driven belt pulley is arranged on the outer periphery of the upper end of the hollow shaft and is connected with a driving belt pulley, the driving belt pulley is connected with a speed reducer which is arranged on a speed reducer base, and an outer end of the speed reducer is connected with a motor. The novel movable and static combined rotary separator is capable of adjusting coal powder fineness conveniently in time, mechanical incomplete-burning loss of a boiler is reduced, utilization of fault coal is facilitated and the boiler can run more safely and economically.
Description
Technical field
The utility model relates to a kind of new coal powder with the rotary separator of being association of activity and inertia.
Background technology
In the prior art in boiler milling system, the performance of mill separator directly affects economy and the safe operation of boiler, for a long time mill separator exist always comprehensive separative efficiency low, go out that powder fineness does not reach requirement, goes out the powder fineness lack of homogeneity, returns that powder fineness is little, lack of homogeneity, return powder amount (many qualified coal dusts can't be separated because of inferior separating effect) on the high side, fineness of pulverized coal can not carry out along with Coal rank the problems such as regular adjusting.In recent years, some manufacturing firms and scientific research department develop, have developed some novel mill separators, its performance makes moderate progress, but these novel mill separators still adopt traditional static separation technology, and the adjusting of fineness of pulverized coal mainly is still and relies on adjusting manually of angle of flap to realize.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, provide a kind of new coal powder with the rotary separator of being association of activity and inertia, the technical scheme that its technical problem that solves the utility model adopts is: structure of the present utility model comprises the coal dust diffusing cone, hollow shaft, coal spout, reducer pedestal, upper oil sealing protective cover, the coal dust baffle plate, powder concentrator, inspection door, static blade, moving vane, return the powder Taper Pipe, driven pulley, drive pulley, reductor, motor, rotor, it is characterized in that coal spout is outside equipped with hollow shaft, the lower end periphery of hollow shaft arranges rotor, rotor arranges moving vane outward, moving vane is outside equipped with static blade, between moving vane and the static blade space is set, rotor is arranged in the powder concentrator, one side of powder concentrator is provided with inspection door, the lower end of coal spout is provided with the coal dust baffle plate, the coal dust baffle plate is back taper, the static blade lower end is connected with back the powder Taper Pipe, return the powder Taper Pipe and also be back taper, the upper end periphery of hollow shaft is provided with driven pulley, driven pulley is connected with drive pulley, drive pulley is connected with reductor, reductor is arranged on the reducer pedestal, and the outer end of reductor is connected with motor.
Operation principle: the utility model is to have increased by a cover Dynamic Separation mechanism in traditional baffle-type mill separator structure, band powder air-flow at first carries out pre-separation during work in the stator blade Disengagement zone, wind powder mixture after the pre-separation enters the movable vane wheel Disengagement zone of rotation again and carries out secondary separation, wind powder mixture rotates under the drive of movable vane wheel, the movable vane wheel produces centrifugal acceleration when rotating, centrifugal acceleration changes along with the rotation speed change of movable vane wheel, the little then centrifugal acceleration of rotating speed is little, and rotating speed height then centrifugal acceleration is large.The centrifugal force that is subject to when particle is during greater than the traction of air-flow, and particle will be separated, and particle diameter is less, and the required centrifugal force that is subjected to of separate particles is also larger, thus when required fineness of pulverized coal more hour, the rotating speed of movable vane wheel is just higher.The movable vane wheel also produces certain perturbed force when rotated in addition, makes the qualified coal dust of being separated by plate washer along with flow rotation, enters separator outlet, thereby reduces back the content of qualified fine powder in the powder.Here it is, and quiet movable vane mating type rotating classifier movable vane wheel speed is regulated outlet fineness of pulverized coal and inhomogeneity mechanism.
The beneficial effects of the utility model are that the utility model can in time be adjusted fineness of pulverized coal easily, reduces the mechanical incomplete combustion loss of boiler, is conducive to the utilization of colm, makes boiler operatiopn safer, more economical.Best fineness of pulverized coal and the pulverized coal fineness that can keep boiler combustion behind the quiet movable vane mating type rotating classifier are installed, are increased the peak modulation capacity of boiler.Quiet movable vane mating type rotating classifier makes outlet pulverized coal fineness index high, and the coal dust corase particles reduces, and ash content carbon obviously descends, and improves the efficiency of combustion of boiler.In the time of on being used in unit pulverized-coal system, can also greatly improve the uniformity of each root flour extraction pipe powder outlet quantity.Quiet movable vane mating type rotating classifier separative efficiency is high, can improve the EIAJ of pulverized coal preparation system more than 10%, reduces the power consumption about 10% of pulverized coal preparation system.Quiet movable vane mating type rotating classifier can suitably reduce SR when being used on the unit pulverized-coal system.Because the pulverized coal fineness index is high, be conducive to the burner of low NOX; Lime-ash carbon amount obviously reduces, and is conducive to the emission level that boiler reduces NOX, also helps environmental protection.When power plant moves, pulverized coal preparation system is exerted oneself and must often be adjusted with ventilation, the fineness of pulverized coal of baffle-type coal dust classifier system changes greatly, and the fineness of pulverized coal of quiet movable vane mating type rotating classifier system does not change basically, is conducive to the operation stability of boiler.
Description of drawings
Fig. 1: the utility model example structure schematic diagram.
Fig. 2: the utility model embodiment rotor and hollow shaft structure schematic diagram.
Fig. 3: the utility model embodiment static blade structural representation.
Fig. 4: the utility model embodiment static blade plan structure schematic diagram.
Among the figure: coal dust diffusing cone 1, hollow shaft 2, coal spout 3, reducer pedestal 4, upper oil sealing protective cover 5, coal dust baffle plate 6, powder concentrator 7, inspection door 8, static blade 9, moving vane 10, time powder Taper Pipe 11, driven pulley 12, drive pulley 13, reductor 14, motor 15, rotor 16.
The specific embodiment
With reference to description of drawings the utility model is done following concrete detailed description.As shown in drawings, structure of the present utility model comprises coal dust diffusing cone 1, hollow shaft 2, coal spout 3, reducer pedestal 4, upper oil sealing protective cover 5, coal dust baffle plate 6, powder concentrator 7, inspection door 8, static blade 9, moving vane 10, return powder Taper Pipe 11, driven pulley 12, drive pulley 13, reductor 14, motor 15, rotor 16, it is characterized in that coal spout 3 is outside equipped with hollow shaft 2, the lower end periphery of hollow shaft 2 arranges rotor 16, the rotor 16 outer moving vanes 10 that arrange, moving vane 10 is outside equipped with static blade 9, between moving vane 10 and the static blade 9 space is set, rotor 16 is arranged in the powder concentrator 7, one side of powder concentrator 7 is provided with inspection door 8, the lower end of coal spout 3 is provided with coal dust baffle plate 6, coal dust baffle plate 6 is back taper, static blade 9 lower ends are connected with back powder Taper Pipe 11, return powder Taper Pipe 11 and also be back taper, the upper end periphery of hollow shaft 2 is provided with driven pulley 12, driven pulley 12 is connected with drive pulley 13, drive pulley 13 is connected with reductor 14, reductor 14 is arranged on the reducer pedestal 4, and the outer end of reductor 14 is connected with motor 15.
Embodiment recited above is described preferred embodiment of the present utility model; be not that design of the present utility model and scope are limited; under the prerequisite that does not break away from the utility model design concept; common engineers and technicians make the technical solution of the utility model in this area various modification and improvement; all should fall into protection domain of the present utility model; the technology contents that the utility model is asked for protection all is documented in claims.
Claims (1)
1. a new coal powder is with the rotary separator of being association of activity and inertia, comprise coal dust diffusing cone (1), hollow shaft (2), coal spout (3), reducer pedestal (4), upper oil sealing protective cover (5), coal dust baffle plate (6), powder concentrator (7), inspection door (8), static blade (9), moving vane (10), return powder Taper Pipe (11), driven pulley (12), drive pulley (13), reductor (14), motor (15), rotor (16), it is characterized in that coal spout (3) is outside equipped with hollow shaft (2), the lower end periphery of hollow shaft (2) arranges rotor (16), the outer moving vane (10) that arranges of rotor (16), moving vane (10) is outside equipped with static blade (9), between moving vane (10) and the static blade (9) space is set, rotor (16) is arranged in the powder concentrator (7), one side of powder concentrator (7) is provided with inspection door (8), the lower end of coal spout (3) is provided with coal dust baffle plate (6), coal dust baffle plate (6) is back taper, static blade (9) lower end is connected with back powder Taper Pipe (11), return powder Taper Pipe (11) and also be back taper, the upper end periphery of hollow shaft (2) is provided with driven pulley (12), driven pulley (12) is connected with drive pulley (13), drive pulley (13) is connected with reductor (14), reductor (14) is arranged on the reducer pedestal (4), and the outer end of reductor (14) is connected with motor (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220596619 CN202893678U (en) | 2012-11-07 | 2012-11-07 | Novel movable and static combined rotary separator for powder coal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220596619 CN202893678U (en) | 2012-11-07 | 2012-11-07 | Novel movable and static combined rotary separator for powder coal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202893678U true CN202893678U (en) | 2013-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220596619 Expired - Fee Related CN202893678U (en) | 2012-11-07 | 2012-11-07 | Novel movable and static combined rotary separator for powder coal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202893678U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104624302A (en) * | 2014-12-12 | 2015-05-20 | 国家电网公司 | Coal powder preparation system |
| CN104759412A (en) * | 2015-04-21 | 2015-07-08 | 黑龙江迪科电站技术有限公司 | Adjustable dynamic rotary separator for coal mill |
| CN105583155A (en) * | 2016-03-23 | 2016-05-18 | 君联益能（北京）科技有限公司 | Double-regulation flow distribution type efficient separator |
| CN111111901A (en) * | 2019-12-28 | 2020-05-08 | 南京楚卿电子科技有限公司 | Dynamic pulverized coal separator for medium-speed mill |
| CN111686920A (en) * | 2020-06-15 | 2020-09-22 | 哈尔滨博深科技发展有限公司 | High-efficient developments rotary separator of steel ball coal mill |
-
2012
- 2012-11-07 CN CN 201220596619 patent/CN202893678U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104624302A (en) * | 2014-12-12 | 2015-05-20 | 国家电网公司 | Coal powder preparation system |
| CN104759412A (en) * | 2015-04-21 | 2015-07-08 | 黑龙江迪科电站技术有限公司 | Adjustable dynamic rotary separator for coal mill |
| CN105583155A (en) * | 2016-03-23 | 2016-05-18 | 君联益能（北京）科技有限公司 | Double-regulation flow distribution type efficient separator |
| CN111111901A (en) * | 2019-12-28 | 2020-05-08 | 南京楚卿电子科技有限公司 | Dynamic pulverized coal separator for medium-speed mill |
| CN111686920A (en) * | 2020-06-15 | 2020-09-22 | 哈尔滨博深科技发展有限公司 | High-efficient developments rotary separator of steel ball coal mill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20191107 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |