CN201603602U - High-efficiency environment-friendly stone coal negative-pressure pneumatic conveying system - Google Patents
High-efficiency environment-friendly stone coal negative-pressure pneumatic conveying system Download PDFInfo
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- CN201603602U CN201603602U CN201020123712XU CN201020123712U CN201603602U CN 201603602 U CN201603602 U CN 201603602U CN 201020123712X U CN201020123712X U CN 201020123712XU CN 201020123712 U CN201020123712 U CN 201020123712U CN 201603602 U CN201603602 U CN 201603602U
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- pressure pneumatic
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Abstract
The utility model relates to equipment used for conveying stone coal of a heat-engine plant, in particular to a high-efficiency environment-friendly stone coal negative-pressure pneumatic conveying system. The system comprises a plurality of stone coal hoppers connected with a coal mill; the stone coal hoppers are connected with a branch pipeline of each stone coal hopper by a feeding device; each branch pipeline is led to a stone coal bin by a main pipeline, a discharging device is arranged at the bottom of the stone coal bin, and an air outlet at the upper part of the stone coal bin is connected with a volume fan by a deduster; the branch pipeline and the main pipeline comprise a plurality of horizontal pipelines and rising pipelines; loose air ducts communicated with the external atmosphere are arranged on the rising pipelines; and purging air openings communicated with the external atmosphere are arranged on the horizontal pipelines. The system has stable running, small dust pollution, low noise and strong conveying capacity and is not easy to be blocked.
Description
Technical field
The utility model relates to a kind of equipment that thermal power plant's stone coal is carried that is used for, and specifically is a kind of high-efficiency environment-friendly type negative-pressure pneumatic transmission system for pebble coal.
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 running.The stone coal is mainly derived from big, the difficult spoil that grinds of density, pyrite etc. in the raw coal, and its stone coal floss hole from its underpart when coal pulverizer moves is discharged.The stone coal needs discharging in time, if the discharging of stone coal is untimely, bulk deposition in coal pulverizer, 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 pulverizer parts such as scaling loss air channel, scraper plate and stone coal bin cause the coal pulverizer fault to stop transport.
Common stone coal discharging has manual emission, waterpower discharging, machinery to carry forms such as 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 discharge capacity 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, transfer efficiency height, labour health condition are good.The conveyance conduit 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, mainly shows as: 1, the pipeline clogging takes place easily, do not dredge measure after the obstruction; 2, the scene still has dust to reveal, and the system failure is more; 3, system noise is very big, becomes the noise source of power plant's maximum, is unfavorable for environmental protection; 4, system's conveying capacity is not high; 5, existing air-transport system generally adopts screw(-type) feeder as stone coal charging instrument, is difficult to carry for big particle diameter stone coal; 6, screw(-type) feeder is very easy to break down when carrying the stone coal as tumbler, also wearing and tearing easily.
Summary of the invention
The present invention wants the technical solution problem to be, provide a kind of stable, be difficult for to stop up, dust pollution is little, noise is little, conveying capacity is strong high-efficiency environment-friendly type negative-pressure pneumatic transmission system for pebble coal.
High-efficiency environment-friendly type negative-pressure pneumatic transmission system for pebble coal of the present utility model includes a plurality of stone coal bunkers that are connected with coal pulverizer, the stone coal bunker is connected with separately tap line by pay-off, each tap line feeds the stone coal bunker through the main line pipeline, stone coal bunker bottom is provided with device for discharging, and the air outlet on stone coal bunker top is connected with the volume blower fan through deduster; Described tap line and main line pipeline include plurality of sections horizontal pipe and increase in pipeline, and increase in pipeline is provided with the loose airduct that communicates with outside atmosphere, and horizontal pipe is provided with the purging air port that communicates with outside atmosphere.
The upper space of described stone coal bunker directly was connected with tap line by one period communicating pipe.
The housing of described stone coal bunker is provided with negative pressure relief valve.
Described volume blower fan outside is covered with blimp, has between sound insulation in the blimp outer setting, and in the air outlet of volume blower fan was arranged between sound insulation, the top had air vent between sound insulation; Described air vent place is provided with muffler and rainhat.
Pay-off between described stone coal bunker and the tap line includes a housing, and the top of housing is provided with the charging aperture that communicates with the stone coal bunker, and the housing rear end is provided with air inlet, and the housing front end is provided with the discharging opening that is connected with tap line; Housing inner chamber below charging aperture 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 air 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.
Advantage of the present invention is:
1, because, being equipped with the mediation airduct in the slope pipeline difficulty of climbing on increase in pipeline, the stone coal can improve stone coal climbing capacity;
2, after the stone coal enters the horizontal feed pipeline, deposit easily, the purging air port that horizontal pipe is installed can be opened the purging air port and be dredged when the deposition accident, guaranteed the equipment reliability service;
3, can guarantee the communicating pipe between stone coal bunker and the tap line to keep negative pressure state in the stone coal bunker, prevent that dust from leaking and contaminated environment;
4, the stone coal bunker is equipped with negative pressure relief valve, and system's negative pressure is excessive in the time of can preventing line clogging causes the accident;
5, between the blimp of volume blower fan outer setting, sound insulation and muffler can effectively reduce noise pollution;
6, stone coal and air enter mixing chamber respectively from two passages in the Zhuan Yong conveying device, can prevent that the too fast whereabouts of stone coal from forming obstruction; 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 conveying capacity thereby regulate the ratio of carrying air and stone coal;
7, Zhuan Yong conveying device does not adopt any tumbler, and its operational reliability height is not easy to wear.
Description of drawings
Fig. 1 is the utility model overall structure schematic diagram;
Fig. 2 is the plan structure schematic diagram of Fig. 1;
Fig. 3 is the structure for amplifying schematic diagram of stone coal bunker part;
Fig. 4 is the structural representation that purges the air port;
Fig. 5 is the structure for amplifying schematic diagram of pay-off.
The specific embodiment
Reference numeral comprises: stone coal bunker 01, pay-off 02, housing 021, charging aperture 022, air inlet 023, discharging opening 024, the one-level plate 025 that connects material, air inlet adjustment plate 026, slot 027, the secondary plate 028 that connects material, tap line 03, main line pipeline 04, stone coal bunker 05, device for discharging 051, negative pressure relief valve 052, deduster 06, volume blower fan 07, the air outlet 071 of volume blower fan, loose airduct 08, purge air port 09, blimp 10, between sound insulation 11, air vent 111, muffler 112, rainhat 113, communicating pipe 12.
Shown in Fig. 1～2, this system includes a plurality of stone coal bunkers 01 that are connected with coal pulverizer, and the stone coal bunker is connected with separately tap line 03 by pay-off 02, and the upper space of stone coal bunker 01 also passes through directly to be connected with tap line 03 one period communicating pipe 12.Each tap line feeds stone coal bunker 05 through main line pipeline 04, and stone coal bunker bottom is provided with device for discharging 051, and the air outlet on stone coal bunker top is connected with volume blower fan 07 through deduster 06, and the housing of stone coal bunker 05 is provided with negative pressure relief valve 052; Tap line 03 and main line pipeline 04 include plurality of sections horizontal pipe and increase in pipeline, increase in pipeline is provided with the loose airduct 08 (referring to Fig. 3) that communicates with outside atmosphere, and horizontal pipe is provided with the purging air port 09 (referring to Fig. 4) that communicates with outside atmosphere.
Described volume blower fan 07 outside is covered with blimp 10, has between sound insulation 11 in the blimp outer setting, and in the air outlet 071 of volume blower fan was arranged between sound insulation, the top had air vent 111 between sound insulation; The air vent place is provided with muffler 112 and rainhat 113.
The running of described feed arrangement 02 is: the stone coal in the stone coal bunker 01 enters in the housing 021 from charging aperture 022, dropping on one-level connects material on the plate 025, the one-level plate 025 that connects material is inserted on the slot 027 of housing both sides, slot basis and the different arrays that are furnished with of charging aperture distance, the one-level plate 025 that connects material changes stone coal circulation area by being inserted in different slot 027, thereby realize charging to different-grain diameter stone coal, air is entered by air inlet 023, by air inlet adjustment plate 026 separated into two parts, a part is used for strength and carries by arriving discharging opening from one-level plate 025 bottom that connects material, and a part is used to promote the stone coal and arrives discharging opening on one-level plate 025 top that connects material; Can change the ratio of two parts wind by the aperture of regulating air inlet adjustment plate 026, thereby change system's conveying capacity, thereby air inlet adjustment plate 026 aperture opened can be increased the bottom greatly and carry air quantity, reduce top and promote air quantity and reduce conveying capacity, can reduce the bottom and carries air quantity, increases top and promote air quantity and increase conveying capacity thereby air inlet adjustment plate adjustable plate 026 aperture turned down; Last stone coal is fallen secondary and is connected material and mixes from discharging opening 024 outflow with air-flow on the plate 028 from the one-level plate 025 that connects material.
Claims (8)
1. high-efficiency environment-friendly type negative-pressure pneumatic transmission system for pebble coal, include a plurality of stone coal bunkers (01) that are connected with coal pulverizer, the stone coal bunker is connected with separately tap line (03) by pay-off (02), each tap line feeds stone coal bunker (05) through main line pipeline (04), stone coal bunker bottom is provided with device for discharging (051), and the air outlet on stone coal bunker top is connected with volume blower fan (07) through deduster (06); It is characterized in that: tap line 03 and main line pipeline 04 include plurality of sections horizontal pipe and increase in pipeline, increase in pipeline is provided with the loose airduct (08) that communicates with outside atmosphere, and horizontal pipe is provided with the purging air port (09) that communicates with outside atmosphere.
2. high-efficiency environment-friendly type negative-pressure pneumatic transmission system for pebble coal according to claim 1 is characterized in that: the upper space of described stone coal bunker (01) is by directly being connected with tap line (03) one period communicating pipe (12).
3. high-efficiency environment-friendly type negative-pressure pneumatic transmission system for pebble coal according to claim 1 is characterized in that: the housing of described stone coal bunker (05) is provided with negative pressure relief valve (052).
4. high-efficiency environment-friendly type negative-pressure pneumatic transmission system for pebble coal according to claim 1, it is characterized in that: described volume blower fan (07) outside is covered with blimp (10), in the blimp outer setting (11) between sound insulation are arranged, in the air outlet of volume blower fan (071) was arranged between sound insulation, the top had air vent (111) between sound insulation.
5. high-efficiency environment-friendly type negative-pressure pneumatic transmission system for pebble coal according to claim 4 is characterized in that: air vent (111) locates to be provided with muffler (112) and rainhat (113).
6. high-efficiency environment-friendly type negative-pressure pneumatic transmission system for pebble coal according to claim 1, it is characterized in that: described pay-off (02) includes a housing (021), the top of housing is provided with the charging aperture (022) that communicates with stone coal bunker (01), the housing rear end is provided with air inlet (023), and the housing front end is provided with the discharging opening (024) that is connected with tap line (03); Housing inner chamber below charging aperture middle part is provided with the one-level plate (025) that connects material, one-level connects material and is provided with an air inlet adjustment plate (026) between plate and the air 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.
7. high-efficiency environment-friendly type negative-pressure pneumatic transmission system for pebble coal according to claim 6, it is characterized in that: the described one-level plate (025) that connects material is inserted on the housing by the slot (027) that is positioned at the housing both sides, 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.
8. according to claim 6 or described high-efficiency environment-friendly type negative-pressure pneumatic transmission system for pebble coal, it is characterized in that: described one-level plate (025) front lower place that connects material also is provided with the secondary plate (028) that connects material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020123712XU CN201603602U (en) | 2010-03-05 | 2010-03-05 | High-efficiency environment-friendly stone coal negative-pressure pneumatic conveying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020123712XU CN201603602U (en) | 2010-03-05 | 2010-03-05 | High-efficiency environment-friendly stone coal negative-pressure pneumatic conveying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201603602U true CN201603602U (en) | 2010-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201020123712XU Expired - Lifetime CN201603602U (en) | 2010-03-05 | 2010-03-05 | High-efficiency environment-friendly stone coal negative-pressure pneumatic conveying system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101804380A (en) * | 2010-03-05 | 2010-08-18 | 江苏中能电力设备有限公司 | High-efficiency environment-friendly type negative-pressure pneumatic transmission system for pebble coal |
| 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 |
-
2010
- 2010-03-05 CN CN201020123712XU patent/CN201603602U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101804380A (en) * | 2010-03-05 | 2010-08-18 | 江苏中能电力设备有限公司 | High-efficiency environment-friendly type negative-pressure pneumatic transmission system for pebble coal |
| CN101804380B (en) * | 2010-03-05 | 2012-01-11 | 江苏中能电力设备有限公司 | High-efficiency environment-friendly type negative-pressure pneumatic transmission system for pebble coal |
| 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 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20101013 Effective date of abandoning: 20120111 |