CN202935969U - High efficient and environment friendly pebble coal omniseal discharge device - Google Patents
High efficient and environment friendly pebble coal omniseal discharge device Download PDFInfo
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- CN202935969U CN202935969U CN 201220659816 CN201220659816U CN202935969U CN 202935969 U CN202935969 U CN 202935969U CN 201220659816 CN201220659816 CN 201220659816 CN 201220659816 U CN201220659816 U CN 201220659816U CN 202935969 U CN202935969 U CN 202935969U
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- pebble coal
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Abstract
The utility model relates to a heat-engine plant device, in particular to a high efficient and environment friendly pebble coal omniseal discharge device used in a medium-speed mill pebble coal discharge system in a thermal power plant. The high efficient and environment friendly pebble coal omniseal discharge device comprises a transition pipeline, and the tail end of the transition pipeline is connected with a gas-tight cabin which is composed of a cabin body and a close cover, wherein the close cover is driven by an air cylinder. A transshipping box is arranged below the close cover, a feeding hole is arranged in the top portion of the transshipping box, and a sealing ring is arranged between the border of the feeding hole and the bottom of the close cover. A lower barrel body is arranged on the top portion of the close cover, an upper barrel body is arranged on a lower hole of the cabin body, and the upper barrel body and the lower barrel body are sleeved and sealed in a mutually staggered mode. An air seal cavity is further arranged on the top surface of the close cover, the lower end of a cup joint gap of the upper barrel body and the lower barrel body is sealed in the air seal cavity, and a sealed air inlet which is connected with a compressed air source is arranged in an outer wall of the air seal cavity. The high efficient and environment friendly pebble coal omniseal discharge device is capable of reducing dust pollution in the working environment with the pebble coal, relieving labor intensity and saving energy consumption of water and electricity of auxiliary equipment.
Description
Technical field
The utility model relates to a kind of Power Plant Equipment, specifically a kind of hermetically sealed tapping equipment of high-efficiency environment friendly pebble coal that uses for thermal powerplant medium-speed pulverizer removing gangue system.
Background technology
Medium-speed pulverizer in Power Plant Equipment is extensive not as the steel ball tubular coal mill to coal adaptability, but in its applicable coal scope (grinding bituminous coal and meager coal), has metal consumption few, reduced investment, the coal-grinding power consumption is little, the metal abrasion are hanged down and the advantages such as noise is little, are therefore widely applied in the station boiler unit.it is larger that the pebble coal that medium-speed pulverizer when operation produces is mainly derived from raw coal density, the spoil of difficult mill, iron pyrite etc., pebble coal is fallen below vane when coal mill moves, send into the stone coal bunker by scraper plate, stone coal discharge mouth discharge from stone coal bunker bottom, if stone coal discharge is untimely, bulk deposition in coal mill, easily cause scraper plate, carbon sealing wear or come off, the pebble coal of piling up also can stop up the air channel, when serious, pebble coal catches fire under the effect of hot blast, the scaling loss air channel, the coal mill parts such as scraper plate and stone coal bin, stop up Residue extraction pipeline, cause the coal mill fault to stop transport, even can directly affect the running state of generator set, so stone coal discharge problem of medium-speed pulverizer, become boiler of power plant specialty daily attention major tasks content, account for more than 45% of everyday devices maintenance.
the deslagging mode of existing medium-speed pulverizer is all to adopt the box dreg removing system of buffering basically, discharging on the spot, manually clear, after operation a period of time, ash gate leaks and the phenomenon that leaks outside in just existing, factor and the increase of effect on coal quality pebble coal bed drain purge due to coal mill design itself, make pebble coal deslagging entrance door, exit door is frequently opened, the ash gate serious wear, door plate deformation, forming jam closes not in place, cause seriously and leak out, barotropic gas during deslagging in the slag case carries a large amount of dust, the gross pollution surrounding environment, become numerous thermal power generation corporations and all put forth effort on the problem that will solve, common stone coal discharge has manual emission, hydraulic discharge, three kinds of patterns of machinery transportation, because pebble coal has density large (1.0 ~ 1.5 t/m3), particle large (≤60mm), hardness is high, temperature high (150 ℃ of left and right), contain the characteristics such as dust, make pebble coal in processing and carry and have certain difficulty, above several processing method all is difficult to the effect that reaches desirable.
Summary of the invention
Technical problem to be solved in the utility model is, a kind of dust pollution that can reduce the pebble coal working environment is provided, and reduces labor intensity, and saves the water of accessory equipment, the hermetically sealed tapping equipment of high-efficiency environment friendly pebble coal of electric energy consumption.
The hermetically sealed tapping equipment of high-efficiency environment friendly pebble coal of the present utility model includes the transition conduit that is connected with the outlet of coal mill pebble coal, the transition conduit end connects a gas-tight silo, gas-tight silo is comprised of a fixing warehouse and the liftable annular capping that is positioned at warehouse below, and capping is by the air cylinder driven that is arranged on warehouse; Capping below is provided with the transport box that can remove, the transport box top be provided with can with the involutory inlet point of closure base portion, be provided with seal ring between feed hole edges and capping bottom surface; The capping top is provided with several lower shells coaxial but that diameter is different, is provided with several upper shells coaxial but that diameter is different at the warehouse end opening simultaneously, the interlaced socket sealing of upper shell and lower shell; Also be provided with a sealing gland chamber on the end face of capping, the lower end in the socket gap of described upper shell and lower shell is closed in the sealing gland chamber, is provided with the sealing air import that is connected with compressed air source on the outer wall in sealing gland chamber.
Described transport box is positioned at the capping below and the time is positioned on the seat of weighing, and the seat bottom of weighing arranges LOAD CELLS, is provided with level-sensing device at the warehouse top simultaneously.
Described warehouse top is provided with air extractor duct, and air extractor duct is connected with bag dust collector with centrifugal blower through vent pipe.
Be provided with spray equipment in described warehouse, be used for lowering the temperature and depositing dust.
Be provided with one maintenance insertion plate door on described transition conduit with discharging insertion plate door.
Be furnished with the observation window with rotary cleaning balde on described gas-tight silo and transport box.
The utility model, changed the uncovered collection pebble coal of original system phenomenon, gas sealing mechanism by the gas-tight silo bottom, the slag inlet flange of gas-tight silo and pebble coal transport box can be closely cooperated, use simultaneously the compressed air sealing junction, whole tapping process can carry out under complete fully enclosed condition, has avoided the dust raising phenomenon in the tapping process fully; In order to guarantee that the phenomenon of dusting does not appear in system sealing when disconnecting, the negative-pressure air-flow that centrifugal blower on the bag dust collector that system carries produces can and siphon away malleation dust air-flow in confined space with the earth pressure release in the confined space of pebble coal transport box, has guaranteed in transport process also without dust raising phenomenon.Because the pebble coal temperature is higher, might produce nature, be provided with spray equipment and temperature measuring equipment in gas-tight silo, handling process, all need to the pebble coal spray cooling each time, reduces airborne dust; In the time of also can reaching a high temperature setting value in the temperature of pebble coal, give the pebble coal spray cooling, until the pebble coal temperature drops to the safety temperature setting value, stop water spray.System is provided with weighting apparatus below the pebble coal transport box, the gas-tight silo top arranges level-sensing device simultaneously, both support the use, can accurately show the pebble coal amount in the pebble coal transport box, also possessed simultaneously warning function, and information is fed back to system control cabinet, in time pebble coal is toppled over processing, avoid the interior pebble coal trunkful of transport box to flood the appearance of accident, both can accomplish far and near to report to the police apart from material level, also can accumulate coal mill stone coal discharge amount hourly, thereby be conducive to effectively judge coal mill dynamic and static ring running state; The another observation window of arranging on gas-tight silo and pebble coal transport box with rotary cleaning balde, the personnel of patrolling and examining can be at any time by the mode of operation of observation window from outer inspection transport box and gas-tight silo inside; Its whole system degree of automation is high, greatly reduces staff's work capacity, and system can reduce the dust pollution more than 96% with respect to the open manual emission of holding tank transition system, reduces by 85% labor export.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the local structure for amplifying schematic diagram of the A of Fig. 1.
The specific embodiment
As shown in the figure, the hermetically sealed tapping equipment of this high-efficiency environment friendly pebble coal includes the transition conduit 01 that is connected with the outlet of coal mill pebble coal, the transition conduit end connects a gas-tight silo 02, gas-tight silo is comprised of a fixing warehouse 021 and the liftable annular capping 022 that is positioned at the warehouse below, and capping 022 is driven by the cylinder 03 that is arranged on warehouse 021; Capping 022 below is provided with the transport box that can remove 04, the transport box top be provided with can with the involutory inlet point 041 of closure base portion, be provided with seal ring 05 between inlet point 041 edge and capping 022 bottom surface; Capping 022 top is provided with several lower shells 023 coaxial but that diameter is different, is provided with several upper shells 024 coaxial but that diameter is different at warehouse 021 end opening simultaneously, upper shell 024 and the interlaced socket sealing of lower shell 023; Also be provided with a sealing gland chamber 025 on the end face of capping 022, the lower end in the socket gap of upper shell 024 and lower shell 023 is closed in sealing gland chamber 025, is provided with the sealing air import 026 that is connected with compressed air source on the outer wall in sealing gland chamber.
Warehouse 021 top is provided with air extractor duct 027, and air extractor duct is connected with bag dust collector 08 with centrifugal blower through vent pipe.
Be provided with spray equipment in warehouse, be used for lowering the temperature and depositing dust.
Be provided with one maintenance insertion plate door 09 on transition conduit 01 with discharging insertion plate door 10.
Be furnished with the observation window with rotary cleaning balde on gas-tight silo and transport box.
Claims (6)
1. hermetically sealed tapping equipment of high-efficiency environment friendly pebble coal, include the transition conduit (01) that is connected with the outlet of coal mill pebble coal, the transition conduit end connects a gas-tight silo (02), gas-tight silo is comprised of a fixing warehouse (021) and the liftable annular capping (022) that is positioned at warehouse below, and capping (022) is by cylinder (03) driving that is arranged on warehouse (021); Capping (022) below is provided with the transport box that can remove (04), the transport box top be provided with can with the involutory inlet point (041) of closure base portion, be provided with seal ring (05) between inlet point (041) edge and capping (022) bottom surface; It is characterized in that: capping (022) top is provided with several lower shells (023) coaxial but that diameter is different, simultaneously be provided with several upper shells (024) coaxial but that diameter is different at warehouse (021) end opening, upper shell (024) and the interlaced socket sealing of lower shell (023); Also be provided with a sealing gland chamber (025) on the end face of capping (022), the lower end in the socket gap of upper shell (024) and lower shell (023) is closed in sealing gland chamber (025), is provided with the sealing air import (026) that is connected with compressed air source on the outer wall in sealing gland chamber.
2. the hermetically sealed tapping equipment of high-efficiency environment friendly pebble coal according to claim 1, it is characterized in that: transport box (04) is positioned in when being positioned at the capping below on the seat (06) of weighing, weigh seat bottom arranges LOAD CELLS (061), is provided with level-sensing device at warehouse (021) top simultaneously.
3. the hermetically sealed tapping equipment of high-efficiency environment friendly pebble coal according to claim 1 is characterized in that: warehouse (021) top is provided with air extractor duct (027), and air extractor duct is connected with bag dust collector (08) with centrifugal blower through vent pipe.
4. the hermetically sealed tapping equipment of high-efficiency environment friendly pebble coal according to claim 1, it is characterized in that: warehouse is provided with spray equipment in (021).
5. the hermetically sealed tapping equipment of high-efficiency environment friendly pebble coal according to claim 1, is characterized in that: be provided with one maintenance insertion plate door (09) on transition conduit (01) and discharge together insertion plate door (10).
6. the hermetically sealed tapping equipment of high-efficiency environment friendly pebble coal according to claim 1, is characterized in that: be furnished with the observation window with rotary cleaning balde on gas-tight silo (02) and transport box (04).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220659816 CN202935969U (en) | 2012-12-05 | 2012-12-05 | High efficient and environment friendly pebble coal omniseal discharge device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220659816 CN202935969U (en) | 2012-12-05 | 2012-12-05 | High efficient and environment friendly pebble coal omniseal discharge device |
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| Publication Number | Publication Date |
|---|---|
| CN202935969U true CN202935969U (en) | 2013-05-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220659816 Expired - Fee Related CN202935969U (en) | 2012-12-05 | 2012-12-05 | High efficient and environment friendly pebble coal omniseal discharge device |
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| CN (1) | CN202935969U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102942071A (en) * | 2012-12-05 | 2013-02-27 | 江苏中能电力设备有限公司 | High efficient and environment-friendly pebble coal full-sealing discharge device |
-
2012
- 2012-12-05 CN CN 201220659816 patent/CN202935969U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102942071A (en) * | 2012-12-05 | 2013-02-27 | 江苏中能电力设备有限公司 | High efficient and environment-friendly pebble coal full-sealing discharge device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130515 Termination date: 20151205 |
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| EXPY | Termination of patent right or utility model |