CN101602026B - Pebble coal equal pressure discharge device - Google Patents

Pebble coal equal pressure discharge device Download PDF

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Publication number
CN101602026B
CN101602026B CN2009100319232A CN200910031923A CN101602026B CN 101602026 B CN101602026 B CN 101602026B CN 2009100319232 A CN2009100319232 A CN 2009100319232A CN 200910031923 A CN200910031923 A CN 200910031923A CN 101602026 B CN101602026 B CN 101602026B
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China
Prior art keywords
coal
discharge device
pressure discharge
equal pressure
sealing
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Expired - Fee Related
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CN2009100319232A
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Chinese (zh)
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CN101602026A (en
Inventor
孙菱蔚
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Jiangsu Ruineng Electric Power Equipment Co Ltd
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Jiangsu Ruineng Electric Power Equipment Co Ltd
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Priority to CN2009100319232A priority Critical patent/CN101602026B/en
Publication of CN101602026A publication Critical patent/CN101602026A/en
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Publication of CN101602026B publication Critical patent/CN101602026B/en
Expired - Fee Related legal-status Critical Current
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Abstract

The invention relates to a device for collecting and cleaning pebble coal discharged by a coal mill; the device comprises a connecting piece (1), a shutdown valve (2), a feeding pipe (3), a sealing box (4), a sealing piece (5) and a moving hopper (6); the connecting piece (1) is fixedly connected with the output of the pebble coal discharged by the coal mill in a sealing way, the connecting piece (1), the shutdown valve (2), the feeding pipe (3), the sealing box (4) and the sealing piece (5) are fixedly connected sequentially, the sealing piece (5) and the moving hopper (6) are connected in a sealing way by a sealing device. The device alleviates working intensity of workers, reduces environmental pollution caused by power plants, saves water and electricity consumption of auxiliary equipment and keep the coal mill to be normally operated.

Description

A kind of pebble coal equal pressure discharge device
Technical field
The present invention is the corollary equipment of power plant coal pulverizer, and especially a kind of stone coal that coal pulverizer is discharged is collected the device of cleaning.
Background technology
The stone coal is a kind of impurity that is mingled in the coal, it must be removed before fire coal enters boiler combustion, therefore simultaneously the stone coal is separated when coal pulverizer moves.
At present, coal-fired power plant's stone coal that coal pulverizer is separated is handled and is divided into usually: three kinds of waterpower, machinery and artificial conveyance.
1, artificial conveyance
Artificial conveyance mainly comprises stone coal collecting bucket, open type activity stone coal bunker, dump truck three parts.Stone coal collecting bucket part, consistent basically under waterpower, three kinds of modes of machinery and artificial conveyance, all be by feeding gate, collection bucket, discharge door is formed, and feeding gate and discharge door are generally selected pneumatic door, and the stone collection bucket generally is furnished with level-sensing device.All need consider worst hot case when turnover bin gate and level-sensing device type selecting.The characteristics of artificial conveyance are exactly manually the stone coal in the stone collection bucket (or being discharged into stone coal on the ground) to be transported to dump truck, are transported to the ash field.Or manually the stone coal is transported to other transfer place, just movable stone coal bunker.Mainly there are two problems in the artificial conveyance system, and the one, site environment pollutes, and the guarantee of operating worker occupational health is poor, and the 2nd, labour intensity is big.
2, waterpower mode of movement
The stone coal collecting part that waterpower is carried stone coal measures system is with to artificially collect design basic identical, also be that feeding gate adds collection bucket and adds discharge door, level-sensing device is installed on the collection bucket, but all designed grid in the collection bucket, meeting has been caused the bulk stone coal of waterpower conveyance conduit plugging is isolated in the stone coal collecting bucket.The stone coal collecting bucket of Hydraulic Transportation System generally need adopt hydrolock stone coal bunker.
The characteristics of Hydraulic Transportation System are that stone collection bucket discharging adopted the Hydraulic Transportation System conveying stone coal of mainly being made up of hydraulic ejector behind the door.The Hydraulic Transportation System water consumption is big, efficient low (20%-40%), and pipeline is easy to wear, and energy consumption is big, and debugging is long running-in period, and the operation maintenance amount is big, and initial investment is bigger, also is unfavorable for the comprehensive utilization of slag.The problem that the stone coal collecting bucket is easily stifled, the leakage around the stone coal collecting bucket emit problem also to can not get solving.
3, mechanical mode of movement
The stone coal collecting bucket and the dump truck of mechanical conveying stone coal measures system are partly identical with artificial conveyance stone coal measures system to the ash field, and mechanical transport portion mainly is made up of one-level conveying equipment and two-stage conveying equipment.
In fact the core of machinery mode of movement design is exactly the definite of the selecting for use of one-level conveying equipment and two-stage conveying equipment, system layout and the method for operation.
The machinery mode of movement, the subterranean tunnel the boiler room in is absolutely necessary, and always has one or two conveyers need be arranged in the underground confined space, and maintenance workload is big, and it is big to overhaul difficulty.Subterranean tunnel domestic demand design dedusting, flushing, drainage, initial investment is big.In addition, most of system also need arrange the climbing conveyer, takies behind the stove or the position, furnace side, makes troubles to entire arrangement and operation behind the stove.
Summary of the invention
The technical problem that the present invention solves provides a kind of pebble coal equal pressure discharge device, can alleviate labor strength, reduces environmental pollution, the water power energy consumption of saving auxiliary equipment that power plant's factory building is caused, safeguard that coal pulverizer normally moves.
In order to realize technical purpose of the present invention, the present invention is finished by following technical scheme:
A kind of pebble coal equal pressure discharge device, comprise connector (1), shut-off valve (2), passage (3), seal box (4), seal (5) and move bucket (6), the outlet fixed seal connection of connector (1) and coal pulverizer discharging stone coal, connector (1), shut-off valve (2), passage (3), seal box (4) and seal (5) are fixedly connected sequentially, and seal (5) and mobile bucket (6) are tightly connected by sealing device.
Sealing device between the flange on seal of the present invention (5) and the mobile bucket (6) is a biserial craspedodrome cylinder (8);
Seal of the present invention (5) adopts two section hermetically-sealed constructions that collude;
Seal of the present invention (5) material is selected high temperature estersil rubber for use;
The present invention comprises a standby shut-off valve (9) at least, is installed in the lower end position of passage (3);
The present invention also comprises the bearing capacity inductor (7) that is installed in mobile bucket (6) bottom, and it passes through four unification Wiring modules, and Realtime Level is accurately shown at the scene, can also pass through the material level the signal is far passed to the boiler operatiopn Master Control Room.In order to remind the site operation personnel to be convenient to find the trunkful unit, also specially installed one group of sound and light alarm lamp additional at the electrical control cubicles top, guarantee normally operation.
Has 1 surveillance mirror (10) on the seal box of the present invention (4) at least;
The present invention comprises a standby mobile bucket at least;
Has a surveillance mirror (11) on the mobile bucket of the present invention (6) at least.
Beneficial effect of the present invention:
1, all parts of the present invention; comprise that connector, shut-off valve, passage, seal box, seal, mobile bucket all are tightly connected; guarantee that the stone coal is a sealing state in discharge process; the protection environment; the powder ash does not leak; do not cause the pollution of power plant's factory building, can also change present stone coal processing mode, alleviate the intensity of hand labor.
2, the hot blast blast in the coal pulverizer, be to guarantee that coal pulverizer blows to penetrate the coal dust important measures, in the process of discharging stone coal, need to keep hot-blast pressure, do not have and reveal, pebble coal equal pressure discharge device of the present invention and coal pulverizer fixed seal connection, the pressure in the coal pulverizer equate with the pressure of pebble coal equal pressure device of the present invention, can satisfy the maintenance hot-blast pressure and not have the leakage requirement.
Description of drawings
Fig. 1 is the structural representation of a kind of pebble coal equal pressure discharge device of the present invention.
Wherein icon is: the 1-connector; The 2-shut-off valve; The 3-passage; The 4-seal box; The 5-seal; 6-moves bucket; 7-bearing capacity inductor; 8-biserial craspedodrome cylinder; The standby shut-off valve of 9-; 10,11-surveillance mirror.
Fig. 2 is the front view of a kind of pebble coal equal pressure discharge device of the present invention.
The specific embodiment
As depicted in figs. 1 and 2, a kind of pebble coal equal pressure discharge device of the present invention, comprise connector 1, shut-off valve 2, passage 3, seal box 4, seal 5 and move bucket 6, device is connected with coal pulverizer stone coal export fixed adaptation by connector 1, the discharging that guarantees the stone coal is a sealing state, connector 1, shut-off valve 2, passage 3, seal box 4 and seal 5 are fixedly connected sequentially, seal 5 and move bucket 6 and be tightly connected by sealing device.Seal 5 employings are two colludes the section hermetically-sealed construction, and material is selected high temperature estersil rubber for use, and between the flange on the mobile bucket 6 individual sealing device is arranged, this device compresses sealing for biserial craspedodrome cylinder 8 by it, and its effective push-tight power reaches 175kg, sealing surface carrying air pressure reaches 2.0MPa, and sealing is reliable.Be installed in and move bucket 6 a bottoms bearing capacity inductor 7 in addition, it accurately the scene shows Realtime Level by four unification Wiring modules.
Its workflow is: at first, open shut-off valve 2, the stone coal enters seal box 4 and moves bucket 5 by passage 3, and moving on the bucket 5 has a surveillance mirror 11, can observe the situation that moves bucket the inside stone coal at any time by surveillance mirror 11.When the load-bearing of moving bucket 5 acquired a certain degree, load-bearing stress induction device 7 was reported to the police, and shut-off valve cuts out 2, and sealing is removed, and started the mobile bucket 6 of fork truck transhipment stone coal collecting, for the ease of moving toppling over of bucket 6, installed hydraulic rotary actuator additional on the pallet fork that rises and falls of fork truck.Hydraulic rotary actuator can be toppled over the stone coal in the rotation of 1.5 meters to 4.5 meters scope height, 260 degree omnidirectionals, so the stone coal that moves in the bucket 6 can directly be poured onto the appointed area.After first stone coal bin trunkful is reported to the police, manually close shut-off valve 2, after seal box 4 top relief valve pressure releases, start biserial craspedodrome cylinder 8, make sealing ring break away from the collecting box end face, after mobile bucket 6 playback, again compress sealing, open secondary shut-off valve 2, enter secondary stone coal collecting flow process.

Claims (6)

1. pebble coal equal pressure discharge device, it is characterized in that: it comprises connector (1), shut-off valve (2), passage (3), seal box (4), the two of high temperature estersil rubber compacting collude the seal (5) of section structure and move bucket (6), the outlet fixed seal connection of connector (1) and coal pulverizer discharging stone coal, connector (1), shut-off valve (2), passage (3), two seals (5) that collude section structure of seal box (4) and the compacting of high temperature estersil rubber are fixedly connected sequentially, and the two seal (5) and mobile buckets (6) that collude section structure of high temperature estersil rubber compacting are tightly connected by biserial craspedodrome cylinder (8).
2. a kind of pebble coal equal pressure discharge device according to claim 1 is characterized in that it also comprises at least one standby shut-off valve (9), is installed in the lower end position of passage (3).
3. a kind of pebble coal equal pressure discharge device according to claim 1 is characterized in that it also comprises the bearing capacity inductor (7) that is installed in mobile bucket (6) bottom.
4. a kind of pebble coal equal pressure discharge device according to claim 1 is characterized in that having 1 surveillance mirror (10) on the described seal box (4) at least.
5. a kind of pebble coal equal pressure discharge device according to claim 1 is characterized in that it also comprises at least one standby mobile bucket.
6. a kind of pebble coal equal pressure discharge device according to claim 1 is characterized in that having a surveillance mirror (11) on the described mobile bucket (6) at least.
CN2009100319232A 2009-07-03 2009-07-03 Pebble coal equal pressure discharge device Expired - Fee Related CN101602026B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009100319232A CN101602026B (en) 2009-07-03 2009-07-03 Pebble coal equal pressure discharge device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009100319232A CN101602026B (en) 2009-07-03 2009-07-03 Pebble coal equal pressure discharge device

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CN101602026A CN101602026A (en) 2009-12-16
CN101602026B true CN101602026B (en) 2010-09-15

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103301922A (en) * 2013-06-26 2013-09-18 赵云辉 Full-sealed type slag discharging system of coal mill
CN103586120B (en) * 2013-08-22 2015-05-13 尹国庆 Movable pebble coal sealing collector
CN104043517A (en) * 2014-06-18 2014-09-17 阚梦诗 Discharging device of pebble coal seal pot of coal mill
CN104338602B (en) * 2014-11-03 2016-08-24 尹国庆 Medium-speed pulverizer stone coal discharge mouth Cleaning device for pipeline
CN105080695A (en) * 2015-09-06 2015-11-25 扬州海鑫机械有限公司 Environment-friendly collecting device for equipressure pebble coal discharging
CN109382197B (en) * 2018-10-23 2020-09-29 大唐滨州发电有限公司 Stone coal hopper jacking sealing system of coal mill

Citations (3)

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Publication number Priority date Publication date Assignee Title
CN2377228Y (en) * 1999-01-15 2000-05-10 常州市东方电力机械厂 Pebble, coal ash and slag conveyer
CN2892273Y (en) * 2006-04-30 2007-04-25 靖远第二发电有限公司 Cobblestone coal transporting system in coal grinder working
CN101318595A (en) * 2007-08-14 2008-12-10 镇江华东电力设备制造厂 Pebble coal vacuum clearing system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2377228Y (en) * 1999-01-15 2000-05-10 常州市东方电力机械厂 Pebble, coal ash and slag conveyer
CN2892273Y (en) * 2006-04-30 2007-04-25 靖远第二发电有限公司 Cobblestone coal transporting system in coal grinder working
CN101318595A (en) * 2007-08-14 2008-12-10 镇江华东电力设备制造厂 Pebble coal vacuum clearing system

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