CN207986182U - A kind of pebble coal positive pressure pneumatic conveying device - Google Patents

A kind of pebble coal positive pressure pneumatic conveying device Download PDF

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Publication number
CN207986182U
CN207986182U CN201721621849.6U CN201721621849U CN207986182U CN 207986182 U CN207986182 U CN 207986182U CN 201721621849 U CN201721621849 U CN 201721621849U CN 207986182 U CN207986182 U CN 207986182U
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CN
China
Prior art keywords
coal
stone
pebble
valve
positive pressure
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Expired - Fee Related
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CN201721621849.6U
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Chinese (zh)
Inventor
陈杰
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Xinjiang Huadian Hami Thermoelectricity Co Ltd
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Xinjiang Huadian Hami Thermoelectricity Co Ltd
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Priority to CN201721621849.6U priority Critical patent/CN207986182U/en
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Publication of CN207986182U publication Critical patent/CN207986182U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model is related to the devices that a kind of pebble coal generated to coal pulverizer carries out positive pneumatic transport, include exporting the stone coal bin being connected with coal pulverizer deslagging, storehouse pumps, material fluidizing device and stone coal bunker, storehouse pump includes pan feeding pipe nipple, inlet valve, feed pipe nipple, delivery pump, intake valve and outlet valve, storehouse pump is connected by pan feeding pipe nipple with stone coal bin, the outlet valve of storehouse pump is connected with material fluidizing device, it also include intake valve on material fluidizing device, material fluidizing device is connected by pipeline with stone coal bunker, stone coal bunker includes to be located at the deduster at the top of it and the pneumatic ash gate positioned at its bottom.The utility model converts on the basis of existing dreg removing system, it can solve coal pulverizer pebble coal bed drain purge and shift pebble coal in time greatly, coal pulverizer normal operation is not influenced, the problems such as fundamentally preventing dreg removing system leakage powder, airborne dust, funds and resource can be effectively saved simultaneously, realize the safe and civilized production of power plant.

Description

A kind of pebble coal positive pressure pneumatic conveying device
Technical field
The utility model is related to a kind of corollary equipments of coal pulverizer in thermal power plant, just more particularly to a kind of pebble coal Press Pneumatic conveyer.
Background technology
In thermal power plant, the ironware not being grated or gangue that coal pulverizer is discharged from lower part in the process of running etc. It is difficult to broken sundries and is referred to as pebble coal.Pebble coal cannot be blown away by thermal current, they fall into coal pulverizer lower part by nozzle ring Hot air chamber in, drained into ash can through air compartment rotor segment, remove the process of waste material can carry out during coal pulverizer is run, and show It is to be discharged, manually cleared on the spot using the box dreg removing system of buffering to have deslagging mode.
There are main problems to have for the box dreg removing system of the buffering:
1, the factor and effect on coal quality pebble coal bed drain purge designed due to coal pulverizer itself is increased, and stone coal and removing slag entrance is made Door, outlet portal are frequently opened, ash gate serious wear, door plate deformation, are formed bite and are not in control position, cause seriously to leak out;
2, after buffering dreg discharging box slag notch is unlimited, it is extremely spacious that the direct deslagging of slag (containing dust) when struggling against direct deslagging is shifted to opening Mouth transfer bucket, dust raising phenomenon are extremely heavy;
3, since transfer bucket is opened type trolley, dust from flying in slagging-off and transport process pollutes environment;
4, pebble coal discharge capacity is big, and artificial deslagging can not shift rapidly stone coal shovel to small car by manpower, influence coal-grinding Machine normal operation;
5, the gangue spontaneous combustion in dreg discharging box in pebble coal, influences to keep the safety in production.
Utility model content
The purpose of the utility model is to provide a kind of pebble coal Pneumatic conveyer, which is in existing row It is converted on the basis of slag system, coal pulverizer pebble coal bed drain purge can be solved and shift pebble coal in time greatly, do not influence coal pulverizer Normal operation fundamentally prevents the problems such as dreg removing system leaks powder, airborne dust, realizes the safe and civilized production of power plant.
The technical solution of the utility model is:A kind of pebble coal positive pressure pneumatic conveying device, including go out with coal pulverizer deslagging Mouthful connected stone coal bin, storehouse pump, material fluidizing device and stone coal bunker, storehouse pump comprising pan feeding pipe nipple, inlet valve, charging pipe nipple, Delivery pump, intake valve and outlet valve, storehouse pump are connected by pan feeding pipe nipple with stone coal bin, the outlet valve and goods fluid of storehouse pump Device is connected, and also includes intake valve on material fluidizing device, and material fluidizing device is connected by pipeline with stone coal bunker, stone coal bunker packet Containing at the top of it deduster and positioned at the pneumatic ash gate of its bottom.
In pebble coal positive pressure pneumatic conveying device above-mentioned, the intake valve of storehouse pump and the intake valve of material fluidizing device with The gas pipeline main pipe of coal pulverizer is connected.
In pebble coal positive pressure pneumatic conveying device above-mentioned, the stone coal bunker is above the ground level 2 meters or more, and in pebble coal Orlop portion is equipped with carloader.
In pebble coal positive pressure pneumatic conveying device above-mentioned, the storehouse pump volume is 0.12m3, convey bleed pressure and be more than 0.7Mpa, air consumption 18Nm3/ min, power requirement:AC220V、50Hz、1KW.
In pebble coal positive pressure pneumatic conveying device above-mentioned, the deduster is bag filter.
Compared with prior art, the utility model passes through the stone coal bin that is connected with coal pulverizer slag-drip opening, storehouse pump, material stream Change the organic linking between device and stone coal bunker, constitute closed dreg removing system so that does not have to frequently open stone when deslagging Coal and removing slag entrance door, outlet portal increase the service life of original ash gate, effectively reduce the workload of maintenance;In addition, logical Automatically controlling for storehouse pump is crossed, the automation of deslagging can be realized, not interfere with the operation of coal pulverizer;Simultaneously as entire deslagging System lock, the phenomenon that having prevented dust from flying in tapping process and transfer process, but also the coal in dreg discharging box in pebble coal Spoil lacks oxygen can not spontaneous combustion.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model pebble coal positive pressure pneumatic conveying device.
Fig. 2 is the intake valve of the intake valve and material fluidizing device of the utility model pebble coal positive pressure pneumatic conveying device storehouse pump The schematic diagram being connected with the gas pipeline main pipe of coal pulverizer.
Fig. 3 is that the stone coal bunker of the utility model pebble coal positive pressure pneumatic conveying device is built in eminence and in stone coal bunker The schematic diagram of carloader is arranged in bottom.
Specific implementation mode
The utility model is further described with reference to the accompanying drawings and examples, but is not intended as to the utility model The foundation of limitation.
Embodiment 1
The structure of aforementioned pebble coal positive pressure pneumatic conveying device will be introduced in the present embodiment.
Include the stone being connected with coal pulverizer deslagging outlet 1 as shown in Figure 1, being a kind of pebble coal positive pressure pneumatic conveying device Sub- coal bin 2, storehouse pump 3, material fluidizing device 4 and stone coal bunker 5, storehouse pump 3 include pan feeding pipe nipple 6, inlet valve 7, feed pipe nipple 8, is defeated Send pump 9, intake valve 10 and outlet valve 11, pan feeding pipe nipple 6 is connected by intake valve 7 with charging pipe nipple 8, charging pipe nipple 8 with it is defeated Pump 9 is sent to be connected, delivery pump 9 is connected with outlet valve 11, and intake valve 10 is located at the top of delivery pump 9, and storehouse pump 3 passes through pan feeding pipe nipple 6 It is connected with stone coal bin 2, the outlet valve 11 of storehouse pump 3 is connected with material fluidizing device 4, also includes air inlet on material fluidizing device 4 Valve 12, material fluidizing device 4 are connected by pipeline 13 with stone coal bunker 5, and stone coal bunker 5 includes 14 He of deduster being located at the top of it Pneumatic ash gate 15 positioned at its bottom.
The present embodiment by the stone coal bin that is connected with coal pulverizer slag-drip opening, storehouse pump, material fluidizing device and stone coal bunker it Between organic linking, constitute closed dreg removing system so that do not have to frequently open stone coal and removing slag entrance door, outlet when deslagging Door, increases the service life of original ash gate, effectively reduces the workload of maintenance;In addition, automatically controlled by what storehouse pumped, The automation that can realize deslagging does not interfere with the operation of coal pulverizer, reduces the use of human resources;Simultaneously as entire Dreg removing system is closed, the phenomenon that having prevented dust from flying in tapping process and transfer process, but also in dreg discharging box in pebble coal Gangue lack oxygen can not spontaneous combustion, improve production safety.Meanwhile stone coal bunker is connected with other devices by pipeline It connects so that the position of stone coal bunker can be according to field condition and needing flexible arrangement to be prevented to the position of convenience in transport to life The pollution of production scene and the outward transport for being conducive to pebble coal.
Embodiment 2
The present embodiment is by the air inlet of the intake valve and material fluidizing device that are pumped to aforementioned pebble coal positive pressure pneumatic conveying device storehouse The mode that valve is connected with the gas pipeline main pipe of coal pulverizer is introduced.
Include the stone being connected with coal pulverizer deslagging outlet 1 as shown in Fig. 2, being a kind of pebble coal positive pressure pneumatic conveying device Sub- coal bin 2, storehouse pump 3, material fluidizing device 4 and stone coal bunker 5, storehouse pump 3 include pan feeding pipe nipple 6, inlet valve 7, feed pipe nipple 8, is defeated Send pump 9, intake valve 10 and outlet valve 11, pan feeding pipe nipple 6 is connected by intake valve 7 with charging pipe nipple 8, charging pipe nipple 8 with it is defeated Pump 9 is sent to be connected, delivery pump 9 is connected with outlet valve 11, and intake valve 10 is located at the top of delivery pump 9, and storehouse pump 3 passes through pan feeding pipe nipple 6 It is connected with stone coal bin 2, the outlet valve 11 of storehouse pump 3 is connected with material fluidizing device 4, also includes air inlet on material fluidizing device 4 Valve 12, material fluidizing device 4 are connected by pipeline 13 with stone coal bunker 5, and stone coal bunker 5 includes 14 He of deduster being located at the top of it Pneumatic ash gate 15 positioned at its bottom.Wherein, intake valve 10 and intake valve 12 are connected to coal-grinding by pipeline 16 and 17 respectively In the gas pipeline main pipe 18 of machine.
The present embodiment takes conveying gas from the gas pipeline main pipe of coal pulverizer, mating without repeating construction air compressor machine etc. Equipment saves funds and the energy.
Embodiment 3
The present embodiment will be built in eminence and in pebble coal to the stone coal bunker of aforementioned pebble coal positive pressure pneumatic conveying device The mode of orlop portion setting carloader is introduced.
Include the stone being connected with coal pulverizer deslagging outlet 1 as shown in figure 3, being a kind of pebble coal positive pressure pneumatic conveying device Sub- coal bin 2, storehouse pump 3, material fluidizing device 4 and stone coal bunker 5, storehouse pump 3 include pan feeding pipe nipple 6, inlet valve 7, feed pipe nipple 8, is defeated Send pump 9, intake valve 10 and outlet valve 11, storehouse pump 3 is connected by pan feeding pipe nipple 6 with stone coal bin 2, pan feeding pipe nipple 6 by into Air valve 7 is connected with charging pipe nipple 8, and charging pipe nipple 8 is connected with delivery pump 9, and delivery pump 9 is connected with outlet valve 11, intake valve 10 Positioned at the top of delivery pump 9, the outlet valve 11 of storehouse pump 3 is connected with material fluidizing device 4, also includes air inlet on material fluidizing device 4 Valve 12, material fluidizing device 4 are connected by pipeline 13 with stone coal bunker 5, and stone coal bunker 5 includes 20 He of deduster being located at the top of it Pneumatic ash gate 21 positioned at its bottom, stone coal bunker 5 are above the ground level 2 meters or more, and orlop is equipped with carloader 22.
The present embodiment aloft builds stone coal bunker and carloader is arranged in orlop, and the carloader of orlop can be utilized to use Truck is periodically transported outward, and is improved the efficiency of waste material transhipment, is saved human resources.In addition, the stone coal bunker of the present embodiment can be with It no longer individually builds, continues to use the high-order slag storehouse transformation of power plant scene boiler, discharge, save together with the cinder of boiler Pork barrel and space.
Embodiment 4
The major parameter of aforementioned pebble coal positive pressure pneumatic conveying device will be introduced in the present embodiment.
Preferably, in pebble coal positive pressure pneumatic conveying device above-mentioned, the storehouse pump volume is 0.12m3, convey air source pressure Power is more than 0.7Mpa, air consumption 18Nm3/ min, power requirement:AC220V、50Hz、1KW.
It is defeated when carrying out pebble coal positive pressure pneumatic conveying using the pebble coal positive pressure pneumatic conveying device above-mentioned of above-mentioned parameter For the horizontal distance sent up to 100 meters, vertical range is conducive to the flexible arrangement of the stone coal bunker up to 15 meters;In addition, working as institute State stone coal bunker continue to use power plant scene boiler high-order slag storehouse transformation and come when, live high-order slag storehouse height is generally at 8 meters Left and right, it may be convenient to carry out the arrangement of pebble coal positive pressure pneumatic conveying device above-mentioned.
Embodiment 5
The present embodiment by the deduster that is used on stone coal bunker described in aforementioned pebble coal positive pressure pneumatic conveying device into Row is introduced.
Preferably, the deduster used on stone coal bunker described in aforementioned pebble coal positive pressure pneumatic conveying device uses cloth bag Deduster detaches the exhaust gas of air-transport system and pebble coal.
It is had the following advantages using bag filter:
1, high dust collection efficiency, generally 99% or more;
2, simple in structure, attended operation is convenient, and under the premise of ensureing same high efficiency of dust collection, cost is less than electric precipitation Device;
3, it can be run under 200 DEG C or more of hot conditions.
4, insensitive to the characteristic of dust, it is not influenced by dust and resistance.
5, ash removal method is more, can select different purge modes as needed, there is gas deashing and mechanical rapping cleaning dust Mode.
Utility model works process is:Coal pulverizer deslagging outlet 1 is opened, and pebble coal is discharged into stone coal bin 2, storehouse pump 3 Inlet valve 7 is opened, and pebble coal enters delivery pump 9 through pan feeding pipe nipple 6 and charging pipe nipple 7, and after charging, inlet valve 7 is closed, and is beaten It drives air valve 10 and 12 and outlet valve 11 into, proceeds by Geldart-D particle, pebble coal is delivered to stone coal bunker 5 through conveyance conduit 13 Or the high-order slag storehouse of live boiler, after conveying finishes and cleans pipeline 13, intake valve 10 and 12 and outlet valve 11 are closed, etc. It waits starting next conveying flow.

Claims (5)

1. a kind of pebble coal positive pressure pneumatic conveying device, it is characterised in that:It include the stone being connected with coal pulverizer deslagging outlet (1) Coal bin (2), storehouse pump (3), material fluidizing device (4) and stone coal bunker (5), storehouse pump (3) comprising pan feeding pipe nipple (6), inlet valve (7), Pipe nipple (8), delivery pump (9), intake valve (10) and outlet valve (11) are fed, storehouse pump (3) passes through pan feeding pipe nipple (6) and stone coal bin (2) it is connected, the outlet valve (11) of storehouse pump (3) is connected with material fluidizing device (4), also includes air inlet on material fluidizing device (4) Valve (12), material fluidizing device (4) are connected by pipeline (13) with stone coal bunker (5), and stone coal bunker (5) includes to be located at the top of it Deduster (14) and pneumatic ash gate (15) positioned at its bottom.
2. pebble coal positive pressure pneumatic conveying device according to claim 1, it is characterised in that:The air inlet of the storehouse pump (3) The intake valve (12) of valve (10) and material fluidizing device (4) is connected with the gas pipeline main pipe of coal pulverizer.
3. pebble coal positive pressure pneumatic conveying device according to claim 1, it is characterised in that:The stone coal bunker (5) is high It is equipped with carloader in 2 meters of ground or more, and in stone coal bunker (5) bottom.
4. pebble coal positive pressure pneumatic conveying device according to claim 1, it is characterised in that:The storehouse pumps (3) volume 0.12m3, conveying bleed pressure is more than 0.7Mpa, air consumption 18Nm3/ min, power requirement:AC220V、50Hz、1KW.
5. pebble coal positive pressure pneumatic conveying device according to claim 1, it is characterised in that:The deduster (14) is cloth Bag dust collector.
CN201721621849.6U 2017-11-29 2017-11-29 A kind of pebble coal positive pressure pneumatic conveying device Expired - Fee Related CN207986182U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721621849.6U CN207986182U (en) 2017-11-29 2017-11-29 A kind of pebble coal positive pressure pneumatic conveying device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721621849.6U CN207986182U (en) 2017-11-29 2017-11-29 A kind of pebble coal positive pressure pneumatic conveying device

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113713948A (en) * 2021-08-30 2021-11-30 北京干雾科技有限公司 Stone coal recycling device and method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113713948A (en) * 2021-08-30 2021-11-30 北京干雾科技有限公司 Stone coal recycling device and method

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Granted publication date: 20181019

Termination date: 20201129