CN201619881U - Two-channel adjustable pebble coal feeding device - Google Patents
Two-channel adjustable pebble coal feeding device Download PDFInfo
- Publication number
- CN201619881U CN201619881U CN2010201237149U CN201020123714U CN201619881U CN 201619881 U CN201619881 U CN 201619881U CN 2010201237149 U CN2010201237149 U CN 2010201237149U CN 201020123714 U CN201020123714 U CN 201020123714U CN 201619881 U CN201619881 U CN 201619881U
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- air inlet
- housing
- plate
- shell
- pebble coal
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Abstract
The utility model relates to a material transport part for a pebble coal pneumatic transport system in a heat-engine plant, in particular to a two-channel adjustable pebble coal feeding device, comprising a shell. The top of the shell is provided with a feeding hole communicated with a pebble coal hopper, the rear end of the shell is provided with an air inlet, and the front end of the shell is provided with a discharge hole communicated with a negative pressure pipeline of a pneumatic transport system. A first-level material receiving tray is arranged in the middle of the inner cavity of the shell below the feeding hole, and an air inlet adjusting plate is arranged between the first-level material receiving tray and the air inlet. The front end of the air inlet adjusting plate is articulated with the shell, and an included angle of the air inlet adjusting plate and a horizontal air inlet direction is adjustable and can be fixed at different angle positions. The utility model has the advantages of simple structure, high transport speed, large suitable grain size range of the pebble coal, adjustable transport condition and high operation reliability.
Description
Technical field
The utility model relates to a kind of mass transport parts that are used for thermal power plant's stone coal gas power delivery system, specifically is a kind of dual-channel adjustable pebble coal feeding device.
Background technology
Medium-speed pulverizer is owing to small investment, good economy performance obtain widely applying in thermal power plant.Medium-speed pulverizer can produce the stone coal in operational process.The stone coal is mainly derived from big, the difficult spoil that grinds of density, iron pyrite etc. in the raw coal, and its stone coal discharge side from its underpart when coal mill moves is discharged.The stone coal needs discharging in time, if the discharging of stone coal is untimely, bulk deposition in coal mill, cause scraper plate, carbon sealing wear easily or come off, the stone coal of piling up also can stop up the air channel, catch fire under the effect of hot blast, coal mill parts such as scaling loss air channel, scraper plate and stone coal bin cause the coal mill fault to stop transport.
Common stone coal discharging has forms such as manual emission, waterpower discharging, mechanical transport discharging.At present, because power plant's coal is changeable, the general variation of raw coal ature of coal, foreign material such as stone, spoil, ore increase than before in the raw coal, stone coal quantity discharged increases greatly, have a strong impact on the safe operation of thermal power plant, conventional stone coal discharging modes all are difficult to solve the problem that present stone coal amount increases greatly.
Recent domestic minority power plant handles the stone coal and has adopted air-transport system.Air-flow with motion is the medium transport material, is the industrial transportation resources of using already, is called strength and carries.The advantage of air-transport system is: simple in equipment, transport efficiency height, labour health condition are good.The delivery duct that strength is carried is provided with pipe network with being convenient to suit measures to local conditions, arranges easy to be flexibly, can make full use of the workshop area, is easy to adapt to workshop condition.
But there are a lot of problems in the air-transport system that is applied to the conveying of stone coal at present, is mainly:
1, traffic capacity deficiency.The feed arrangement of air-transport system stone coal mainly adopts screw feeder, and the screw feeder delivery rate is very limited, under the big situation of stone coal amount, the stone coal in time can't be transported away;
2, can't carry big particle diameter material.The material that particle diameter is bigger in the stone coal is more, and screw feeder can't be carried for the big stone coal of particle diameter, has limited the field of application of air-transport system;
3, screw feeder is very easy to et out of order as tumbler when carrying the stone coal, and also wearing and tearing easily often need maintenance, and reliability is very poor.
Summary of the invention
Technical problem to be solved in the utility model is, provide a kind of simple in structure, delivery speed fast, the stone coal particle size range that adapts to is big, transport condition scalable, dual-channel adjustable pebble coal feeding device that serviceability is high.
Dual-channel adjustable pebble coal feeding device of the present utility model includes a housing, the top of housing is provided with the inlet point that communicates with the stone coal hopper, the housing rear end is provided with ventilation inlet, and the housing front end is provided with the discharging opening that communicates with the negative-pressure pipeline of air-transport system; Housing inner chamber below inlet point middle part is provided with the one-level plate that connects material, one-level connects material and is provided with an air inlet adjustment plate between plate and the ventilation inlet, air inlet adjustment front edge of board and housing are articulated and connected, and make the adjustable included angle joint between air inlet adjustment plate and the horizontal air intake direction and are fixed on the different angles position.
The described one-level plate that connects material is inserted on the housing by the slot that is positioned at the housing both sides, and described slot is provided with many groups from the bottom to top, and the one-level plate that connects material can be inserted on the different height and positions.
The described one-level plate front lower place that connects material also is provided with the secondary plate that connects material.
The utility model has the advantages that to make stone coal and air enter blending box respectively, stop up to prevent that the too fast whereabouts of stone coal from forming from two passages; One-level connects material plate by on the slot that is inserted into differing heights, can change stone coal flow area, thereby realize charging to different-grain diameter stone coal, can adapt to big particle diameter stone coal carries, the secondary separator of battery plates can make the stone coal that rate of onset is arranged and be in air-flow velocity highest region territory, helps the stone coal and carries.Air is by air inlet adjustment plate separated into two parts, a part is passed through from housing inner chamber bottom, be used to provide main transmitting power, a part connects material plate top by being used to promote the hybrid chamber that the stone coal enters front end from one-level, can change the ratio of two parts wind by regulating air inlet adjustment plate aperture, change system's traffic capacity thereby regulate the ratio of carrying air and stone coal.This device does not adopt any tumbler, and the serviceability height is not easy to wear.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
Reference numeral comprises: housing 1, stone coal hopper 2, inlet point 3, ventilation inlet 4, discharging opening 5, one-level connect material plate 6, secondary connect material plate 7, slot 8, air inlet adjustment plate 9.
As shown in the figure, the operational process of feed arrangement of the present invention is: the stone coal in the stone coal hopper 2 enters in the housing 1 from inlet point 3, dropping on one-level connects material on the plate 6, the one-level plate 6 that connects material is inserted on the slot 8 of housing both sides, slot basis and the different arrays that are furnished with of inlet point distance, the one-level plate 6 that connects material changes stone coal flow area by being inserted in different slot 8, thereby realize charging to different-grain diameter stone coal, air is entered by ventilation inlet 4, by air inlet adjustment plate 9 separated into two parts, a part is used for strength and carries by arriving discharging opening from one-level plate 6 bottoms that connect material, and a part is used to promote the stone coal and arrives discharging opening on one-level plate 6 tops that connect material; Can change the ratio of two parts wind by the aperture of regulating air inlet adjustment plate 9, thereby change system's traffic capacity, thereby air inlet adjustment plate 9 apertures are opened can be increased the bottom greatly and carry air quantity, reduce top and promote air quantity and reduce operational throughput, can reduce the bottom and carries air quantity, increases top and promote air quantity and increase operational throughput thereby air inlet adjustment plate regulating plate 9 apertures are turned down; Last stone coal is fallen secondary and is connected material and mixes from discharging opening 5 outflows with air-flow on the plate 7 from the one-level plate 6 that connects material.
Claims (3)
1. a dual-channel adjustable pebble coal feeding device includes a housing (1), and the top of housing is provided with the inlet point (3) that communicates with the stone coal hopper, and it is characterized in that: the housing rear end is provided with ventilation inlet (4), and the housing front end is provided with discharging opening (5); Housing inner chamber below inlet point middle part is provided with the one-level plate (6) that connects material, one-level connects material and is provided with an air inlet adjustment plate (9) between plate and the ventilation inlet, air inlet adjustment front edge of board and housing are articulated and connected, and make the adjustable included angle joint between air inlet adjustment plate and the horizontal air intake direction and are fixed on the different angles position.
2. dual-channel adjustable pebble coal feeding device according to claim 1, it is characterized in that: the described one-level plate (6) that connects material is inserted on the housing by the slot (8) that is positioned at the housing both sides, described slot (8) is provided with many groups from the bottom to top, and the one-level plate that connects material can be inserted on the different height and positions.
3. dual-channel adjustable pebble coal feeding device according to claim 1 and 2 is characterized in that: described one-level plate (6) front lower place that connects material also is provided with the secondary plate (7) that connects material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201237149U CN201619881U (en) | 2010-03-05 | 2010-03-05 | Two-channel adjustable pebble coal feeding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201237149U CN201619881U (en) | 2010-03-05 | 2010-03-05 | Two-channel adjustable pebble coal feeding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201619881U true CN201619881U (en) | 2010-11-03 |
Family
ID=43023336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201237149U Expired - Lifetime CN201619881U (en) | 2010-03-05 | 2010-03-05 | Two-channel adjustable pebble coal feeding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201619881U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101804918A (en) * | 2010-03-05 | 2010-08-18 | 江苏中能电力设备有限公司 | Dual-channel adjustable pebble coal feeding device |
| CN102491092A (en) * | 2011-12-16 | 2012-06-13 | 安徽康迪纳电力科技有限责任公司 | Pebble coal cushioning collecting and feeding device |
| CN102923485A (en) * | 2012-11-27 | 2013-02-13 | 西安热工研究院有限公司 | Efficient positive-pressure pneumatic conveying system of pebble coal |
| CN102935944A (en) * | 2012-11-27 | 2013-02-20 | 西安热工研究院有限公司 | Dual-adjustable pebble coal positive-pressure pneumatic feeding device |
-
2010
- 2010-03-05 CN CN2010201237149U patent/CN201619881U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101804918A (en) * | 2010-03-05 | 2010-08-18 | 江苏中能电力设备有限公司 | Dual-channel adjustable pebble coal feeding device |
| CN101804918B (en) * | 2010-03-05 | 2012-07-04 | 江苏中能电力设备有限公司 | Dual-channel adjustable pebble coal feeding device |
| CN102491092A (en) * | 2011-12-16 | 2012-06-13 | 安徽康迪纳电力科技有限责任公司 | Pebble coal cushioning collecting and feeding device |
| CN102923485A (en) * | 2012-11-27 | 2013-02-13 | 西安热工研究院有限公司 | Efficient positive-pressure pneumatic conveying system of pebble coal |
| CN102935944A (en) * | 2012-11-27 | 2013-02-20 | 西安热工研究院有限公司 | Dual-adjustable pebble coal positive-pressure pneumatic feeding device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20101103 Effective date of abandoning: 20120704 |