CN201321286Y - Stone coal pneumatic transmitting system - Google Patents
Stone coal pneumatic transmitting system Download PDFInfo
- Publication number
- CN201321286Y CN201321286Y CNU2008201831873U CN200820183187U CN201321286Y CN 201321286 Y CN201321286 Y CN 201321286Y CN U2008201831873 U CNU2008201831873 U CN U2008201831873U CN 200820183187 U CN200820183187 U CN 200820183187U CN 201321286 Y CN201321286 Y CN 201321286Y
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- Prior art keywords
- trunk line
- stone coal
- valve
- vacuum blower
- stone
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Abstract
The utility model relates to a stone coal pneumatic transmitting system comprising a plurality of stone feeding devices arranged on a main transmitting pipeline, and a gas material separating filter, a cooling device, a vacuum fan unit, a control system and the like, which are arranged on the front portion of the main transmitting pipeline, wherein a stone coal feeding device is directly connected with the main transmitting pipeline in parallel, the tail end of the main transmitting pipeline is provided with a main pipeline tail end device which comprises a compressed air storage tank, an air intake and exhaust valve and a control valve. The initiating end of the main pipeline is connected with a feeding port of a hopper device, a discharging valve is arranged on the bottom of the hopper device, and the discharging height of is higher than 3600mm. Each part in the control system forms a distributed control. The structural design of the system effectively solves the problems existing in a negative (vacuum) cleaning and transmitting system through combining a negative pressure transmitting and a positive pressure cleaning plugged pipes.
Description
Technical field
The utility model relates to coal and transports equipment, is specifically related to the automatic cleaning and the remote delivery system of medium-speed pulverizer stone coal, belongs to International Classification of Patents B65G technical field.
Background technology
Medium-speed pulverizer is difficult for the stone that grinds in a large number owing to contain in the raw coal in the process to raw coal system coal dust, this stone coal is discharged in coal-grinding technology in the stone coal collecting case of coal mill, and the collecting box of stone coal has discharge valve.Adopt negative pressure (or vacuum) cleaning delivery system, cardinal principle is to carry the stone coal by the high velocity air under high negative pressure (vacuum) environment to carry at a distance by pipeline.Existing negative pressure (vacuum) air-transport system is taked arm to be responsible for and is combined on its structure, promptly the discharge orifice at each coal mill stone coal collecting case connects one section arm, and all arms and a person in charge are connected in parallel, and are responsible for endcapped.During work, open arm piecemeal, arm and be responsible for cleaning and the conveying of finishing jointly stone coal in the coal mill stone coal bin.This person in charge adds negative pressure (vacuum) pneumatic conveying mode of arm, often causes pipe choking in actual applications, so that systemic breakdown.Behind the pipe choking, the halt system of having to is taken pipeline apart, carries out artificial or strength cleaning pipeline.
Summary of the invention
The purpose of this utility model is the problem at the existence of existing negative pressure (vacuum) air-transport system, and device---the stone coal gas power delivery system of plugging problem in the complete solution negative pressure strength conveying of a cover is provided.
The purpose of this utility model is achieved through the following technical solutions.
Stone coal gas power delivery system comprises: the sub-coal pay-off of many socles, carry trunk line, pipe end device, magazine attachment, cooling mechanism, vacuum blower group, control system etc.Carry on the trunk line and be arranged with a plurality of stone pay-offs, carry the trunk line front portion that gas material separating and filtering device is arranged, there is cooling mechanism its underpart, and cooling mechanism connects the vacuum blower group, and vacuum blower group next door is equipped with control system.Stone coal pay-off directly is connected in parallel with carrying trunk line, carries the end of trunk line to connect the trunk line end item.Particularly, to be installed in the separation valve door of carrying the trunk line top in parallel with the conveying trunk line by connecting one for the sub-pay-off of every socle.The trunk line end item comprises compressed air reservoir, and the air intake valve of compressed air reservoir, compressed air reservoir connect the drain tap of full trunk line, the terminal by-pass valve control that links to each other with atmosphere of this device etc.Gas material separating and filtering device, its bottom is equipped with discharge gate, and the setting height(from bottom) of discharge gate is more than 3600mm.The top of gas material separating and filtering device is equipped with cloth envelop collector.The vacuum blower group comprises the conversion valve of vacuum blower, variable-frequency motor, vacuum blower sucking hole, with vacuum blower discharge orifice valve bonded assembly exhaust gas silencer etc.; Being provided with a cooling vessel is connected with the conversion valve of vacuum blower sucking hole.Control system comprises electric motor starting control housing and system's control housing, and system's control housing is connected with field control cabinet and sensor by circuit, and mutual group becomes distributed control system.
The formation of pay-off: every medium-speed pulverizer stone coal collecting case discharge valve connecting tube conveyor screw inlet, the outlet of spiral pipeline conveyer connect separation valve door and carry the trunk line parallel connection.
The end item of trunk line constitutes: the end of trunk line is installed operated pneumatic valve and is linked to each other with atmosphere, and the end of trunk line also is connected with storage tank by valve, and the admission port of storage tank is connected with the compressed air piping of enterprise.
Magazine attachment constitutes: the initiating terminal of trunk line is connected with magazine attachment, and the stone coal enters magazine attachment by the initiating terminal of trunk line.Carry out the separation of gas material in hopper after, the stone coal falls into hopper.Bottom at hopper connects discharge gate, and the discharge gate setting height(from bottom) is more than the 3600mm, can be discharged to the stone coal in the truck bucket of shipment stone coal.Clean high-temperature gas is discharged to cooling mechanism by the upper end cloth envelop collector that is installed in magazine attachment.The cooling mechanism exhausr port is connected to the admission port of vacuum blower group.
The vacuum blower group is by the variable-frequency motor driving machine; The exhausr port and the exhaust gas silencer of vacuum blower are direct; The combination of vacuum blower and motor is set to the mode of the using and the reserved.
System control device comprises electric motor starting control housing, system's control housing and field control cabinet, vacuum pressure sensor; Vacuum pressure sensor is installed in carrying on the trunk line, near the separation valve door of trunk line.
Way that stone coal gas power delivery system employing negative pressure of the present utility model (vacuum) is carried and the malleation pipe-dredging combines, effectively prevent and overcome the problem that exists in negative pressure (vacuum) the delivery system real-world operation, promoted the application of negative pressure transportation technology in medium-speed pulverizer enterprise.
Description of drawings
Fig. 1 is an overall structure scheme drawing of the present utility model;
Fig. 2 is the coal mill pay-off connection diagram in the stone coal gas power delivery system;
Fig. 3 is the connection diagram of carrying the trunk line end item in the stone coal gas power delivery system;
Fig. 4 is the connection diagram of stone coal delivery system hopper, vacuum blower group and control system.
The specific embodiment
As shown in Figure 1, stone coal gas power delivery system comprises the sub-coal pay-off of many socles, and as stone coal pay-off 1～6, the sub-coal pay-off of many socles adopts parallel way to link to each other with carrying trunk line 12.Carry trunk line 12 to be provided with end item 7, carry the initiating terminal of trunk line 12 and the inlet point of magazine attachment 8 to be connected, the exhausr port of magazine attachment 8 connects the admission port of cooling mechanism 9, and the exhausr port of cooling mechanism 9 is connected with vacuum blower group 10; Control system 11 by cable line with vacuum blower group 10, respectively control sensor and be connected with the field control cabinet.
As shown in Figure 2, the coal mill pay-off comprises: the pneumatic discharge-service valve 1-1 of coal mill stone coal bin, the inlet point of connecting tube conveyor screw 1-2, the discharge gate of spiral pipeline conveyer 1-2 is responsible on 12 in conveying and is connected by separation valve door 1-3, is carrying setting pressure vacuum transducer 11-5 on the trunk line 12.With regard near position erecting stage control housing 11-4, the field control cabinet links to each other with sensor with each valve with acquisition of signal circuit 11-3 by control at pay-off.
As shown in Figure 3, carry trunk line 12 terminal installation and control valve 7-5, link to each other with atmosphere, compressed air reservoir 7-1 is by air intake valve 7-2 air inlet, be connected to trunk line 12 by drain tap 7-3, trunk line 12 end items are erecting stage control housing 11-7 nearby, is connected with sensor with each valve with signal line 11-3 by control.
As shown in Figure 4, variable-frequency motor 10-2 drives vacuum blower 10-1, and the sucking hole of vacuum blower 10-1 is connected with cooling vessel 9 by conversion valve 10-3, and the discharge orifice of vacuum blower is connected with exhaust gas silencer 10-4 by valve.The connection mode of standby fan is the same with the working fan connection mode.What the vacuum blower group adopted is the using and the reserved modes.Discharge gate 8-1 has been installed in magazine attachment 8 bottoms, and the setting height(from bottom) of discharge gate is greater than 3600mm.Cloth envelop collector 8-2 has been installed at the magazine attachment top.Control system 11 is installed in by the vacuum blower device, comprise electric motor starting and control housing 11-1, the control housing 11-2 of system, system's control housing is connected with sensor with all field control cabinets with acquisition of signal circuit 11-3 by control path, forms dcs.
The workflow of the utility model stone coal gas power delivery system is as follows:
When system receives after a coal mill sends stone coal transportation request, control system 11 enters the negative pressure transportation operation immediately:
(1) opens pipeline bottom valve door 7-5, start the vacuum blower group, in main delivery pipe 12, form high velocity air.
(2) open corresponding coal mill stone coal pay-off as 1: open pipeline conveyor screw such as 1-2, open separation valve door 1-3, open stone coal bin discharge valve 1-1.Stone coal in the stone coal bin is sent into by conveyor screw and is carried trunk line 12.The stone coal that falls into trunk line is brought magazine attachment 8 into by the high velocity air in the pipeline.The stone coal falls in the hopper, and the high-temperature gas behind the cloth bag filtration is discharged atmosphere by cooling vessel 9 through vacuum blower 10-1 and silencer 10-4.
(3) be emptied completely when corresponding stone coal bin, valve-off 1-1 and separation valve door 1-3,, the stone coal of corresponding coal mill is carried and is finished.In the negative pressure process of pneumatic transmission, the terminal valve 7-5 of trunk line opens always.
(4) finish coal mill stone coal and carry after, system responds other coal mill stone coal transportation request more successively.
(5) when no stone coal transportation request, the vacuum blower group stops.System wait is transportation request next time.
System detects in real time and is installed in the pressure vacuum sensor 11-5 that carries trunk line in the negative pressure transportation operation, but control system automatic diagnosis plugging.After plugging, control system enters the pipe-dredging operation immediately:
(1) the vacuum blower group is not shut down, and closes pipeline bottom valve door 7-5, opens storage tank valve 7-3, and pressurized air feeds from pipe end and carries trunk line 12.Blow and the negative pressure traction by malleation, the stone coal stops up in the mediation trunk line.After pipe-dredging finishes, open pipeline bottom valve door 7-5, close storage tank valve 7-3, system recovery is carried operation to normal negative pressure.
Claims (6)
1, a kind of stone coal gas power delivery system, it is characterized in that: it comprises carries trunk line (12) to go up a plurality of stone pay-offs (1)～(6) of arranging, carry the gas material separating and filtering device (8) of trunk line front portion, the cooling mechanism (9) of its underpart, the vacuum blower group (10) that cooling mechanism (9) connects, vacuum blower group (10) next door is equipped with control system (11); Stone coal pay-off (1)～(6) with carry trunk line (12) directly to be to be connected in parallel; Carry the end of trunk line (12) to connect trunk line end item (7).
2, stone coal gas power delivery system according to claim 1, it is characterized in that: described trunk line end item (7), comprise compressed air reservoir (7-1), the air intake valve (7-2) of compressed air reservoir (7-1), compressed air reservoir (7-1) is connected to the drain tap (7-3) of trunk line (12), the terminal by-pass valve control (7-5) that links to each other with atmosphere of this device.
3, stone coal gas power delivery system according to claim 1 is characterized in that: described gas material separating and filtering device (8), and its bottom is equipped with discharge gate (8-1), and the setting height(from bottom) of discharge gate (8-1) is more than 3600mm; The top of gas material separating and filtering device (8) is equipped with cloth envelop collector (8-2).
4, stone coal gas power delivery system according to claim 1, it is characterized in that: described vacuum blower group (10), the conversion valve (10-3) that comprises vacuum blower (10-1), variable-frequency motor (10-2), vacuum blower sucking hole is with vacuum blower discharge orifice valve bonded assembly exhaust gas silencer (10-4); One cooling vessel (9) is connected with the conversion valve (10-3) of vacuum blower sucking hole.
5, stone coal gas power delivery system according to claim 1, it is characterized in that: described control system (11), comprise electric motor starting control housing (11-1), system's control housing (11-2), system's control housing (11-2) is connected with field control cabinet (11-4), (11-7), sensor (11-5) by circuit (11-3), and mutual group becomes distributed control system.
6, stone coal gas power delivery system according to claim 1, it is characterized in that: the sub-pay-off of described every socle (1)～(6) are installed in and carry the separation valve door (1-3) of trunk line (12) top in parallel with conveying trunk line (12) by connecting one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201831873U CN201321286Y (en) | 2008-12-22 | 2008-12-22 | Stone coal pneumatic transmitting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201831873U CN201321286Y (en) | 2008-12-22 | 2008-12-22 | Stone coal pneumatic transmitting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201321286Y true CN201321286Y (en) | 2009-10-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201831873U Expired - Fee Related CN201321286Y (en) | 2008-12-22 | 2008-12-22 | Stone coal pneumatic transmitting system |
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| Country | Link |
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| CN (1) | CN201321286Y (en) |
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 |
| CN102009852A (en) * | 2010-10-22 | 2011-04-13 | 福建龙净环保股份有限公司 | Pneumatic transmission device |
| CN104192571A (en) * | 2014-08-21 | 2014-12-10 | 信易电热机械有限公司 | Vacuum filling machine for high-temperature PET raw material conveying |
-
2008
- 2008-12-22 CN CNU2008201831873U patent/CN201321286Y/en not_active Expired - Fee Related
Cited By (5)
| 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 |
| CN102009852A (en) * | 2010-10-22 | 2011-04-13 | 福建龙净环保股份有限公司 | Pneumatic transmission device |
| CN102009852B (en) * | 2010-10-22 | 2012-07-25 | 福建龙净环保股份有限公司 | Pneumatic transmission device |
| CN104192571A (en) * | 2014-08-21 | 2014-12-10 | 信易电热机械有限公司 | Vacuum filling machine for high-temperature PET raw material conveying |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Hou Guangming Document name: Notification to Pay the Fees |
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| DD01 | Delivery of document by public notice |
Addressee: Hou Guangming Document name: Notification of Termination of Patent Right |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091007 Termination date: 20131222 |