CN204555552U - A kind of coal slime drying system - Google Patents

A kind of coal slime drying system Download PDF

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Publication number
CN204555552U
CN204555552U CN201520240844.3U CN201520240844U CN204555552U CN 204555552 U CN204555552 U CN 204555552U CN 201520240844 U CN201520240844 U CN 201520240844U CN 204555552 U CN204555552 U CN 204555552U
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coal
outlet
air
connects
finished product
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王鹏云
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YUNNAN ZHONGYI DINGDONG ENERGY TECHNOLOGY DEVELOPMENT Co Ltd
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YUNNAN ZHONGYI DINGDONG ENERGY TECHNOLOGY DEVELOPMENT Co Ltd
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Abstract

The utility model discloses a kind of coal slime drying system, aim to provide a kind of dry mass and the high coal slime drying system of efficiency.It comprises filter press, coal slime drag conveyor, charging bucket elevator, first charging drag conveyor, coal slime surge bunker, feeding spiral conveyer, second charging drag conveyor, drying device, flow-disturbing valve, cyclone dust collectors, sack cleaner, first air-introduced machine, second air-introduced machine, first desulfurizing tower, chimney, first conveying worm, second conveying worm, 3rd conveying worm, reclaim dust cabin, electric feeder, comminutor, finished belt conveyer, finished product bucket elevator, T-piece splitting valve, finished product reprints belt conveyor, finished product surge bunker, finished product electric feeder, coal-fired drag conveyor, coal bunker, coal-fired batcher, heat energy apparatus, by-passing valve, screen collector, safety valve, second air blast, first air blast, slag remover, to slag tap bucket elevator, slag storehouse, workshop dust-precipitator, second desulfurizing tower and gas skirt.

Description

A kind of coal slime drying system
Technical field
The utility model relates to coal slime equipment for drying technical field, especially relates to a kind of coal slime drying system.
Background technology
Current domestic drying process and equipment a lot.Mainly contain in the dry field of coal industry coal slime: coal slurry rotary drum drying process, tunnel type drying process (comprising turnover panel drying machine and mesh dryer) and dry air-flow process three major types.
Roller drier is one of drying equipment the earliest, and it not only for the drying of coal, and is widely used in the fields such as metallurgy, building materials, chemical industry already.The shortcoming of roller drying technique machine is: the baking temperature of this kind of drying process, more than 700 DEG C, effectively can not control the oxygen content in dry run.Far away higher than 278 DEG C, the ignition point of brown coal and jet coal, be not suitable for brown coal and jet coal coal slime is dry.
Tunnel type drying process is applicable to the drying of bulk, strip-shaped materials.There are turnover plate type device and metal mesh belt type device, after coal slime extruding slivering, drying can be carried out on metal mesh belt dryer.The shortcoming of this drying process is: the drying being not suitable for loose shape coal slime, drying efficiency is lower.
Air-flowing type drying process utilizes heat medium (hot-air, flue gas etc.) directly to contact with wet stock particle, and make solid particle be suspended in heat medium fluid, enhance mass-and heat-transfer process, belong to " wink-dry ", be generally applied to the drying of bulk material.Dry to the coal slime of coal industry, also first want " granulation " or " shaping ".The shortcoming of this drying process is: the industrial practice poor effect of dry coal slime, does not generally adopt the dry coal slime of this technique.
Utility model content
The utility model overcomes shortcoming of the prior art, provides a kind of dry mass and the high coal slime drying system of efficiency.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
A kind of coal slime drying system, comprises filter press, coal slime drag conveyor, coal slurry belt conveyer, charging bucket elevator, first charging drag conveyor, coal slime surge bunker, feeding spiral conveyer, second charging drag conveyor, feeding air-locked valve, drying device, flow-disturbing valve, cyclone dust collectors, sack cleaner, first air-introduced machine, second air-introduced machine, first desulfurizing tower, chimney, first lock wind apparatus, second lock wind apparatus, first conveying worm, second conveying worm, 3rd conveying worm, reclaim dust cabin, electric feeder, comminutor, finished belt conveyer, finished product bucket elevator, T-piece splitting valve, finished product reprints belt conveyor, finished product surge bunker, finished product electric feeder, coal-fired drag conveyor, coal bunker, coal-fired batcher, heat energy apparatus, by-passing valve, screen collector, safety valve, second air blast, first air blast, slag remover, slagging-off belt conveyor, to slag tap bucket elevator, slag storehouse, workshop dust-precipitator, second desulfurizing tower and gas skirt,
The outlet of described filter press connects the entrance of charging bucket elevator by coal slime drag conveyor and coal slurry belt conveyer; The outlet of described charging bucket elevator connects coal slime surge bunker by the first charging drag conveyor; The discharging opening of described coal slime surge bunker connects the charging aperture of drying device by feeding spiral conveyer and the second charging drag conveyor; Described feeding air-locked valve is arranged at the charging aperture place of drying device; Described flow-disturbing valve is arranged at the air outlet place of drying device; The discharging opening of described drying device connects finished product belt conveyor; The air outlet of described drying device connects the entrance of cyclone dust collectors by pipeline; The material outlet place of described cyclone dust collectors arranges the first lock wind apparatus, and connects finished product belt conveyor by the first conveying worm; The air outlet of described cyclone dust collectors connects the entrance of sack cleaner by pipeline; The material outlet place of described sack cleaner arranges the second lock wind apparatus, and connects recovery dust cabin by the second conveying worm; Described sack cleaner connects the entrance of the first air-introduced machine by pipeline; The outlet of described first air-introduced machine connects the entrance of the first desulfurizing tower by pipeline; The outlet of described first desulfurizing tower is by pipeline communication chimney; Described workshop dust-precipitator is connected with the entrance of the second air-introduced machine; The outlet of described second air-introduced machine is communicated with chimney; The entrance of described second air-introduced machine connects the outlet of the second desulfurizing tower by pipeline; The entrance of described second desulfurizing tower connects gas skirt by pipeline; The discharging opening of described workshop dust-precipitator connects recovery dust cabin by the 3rd conveying worm; The exit of described recovery dust cabin arranges electric feeder, and is connected with the entrance of comminutor; The outlet of described comminutor is connected with finished belt conveyer; The discharge end of described finished belt conveyer is connected with the entrance of finished product bucket elevator; The outlet of described finished product bucket elevator arranges T-piece splitting valve; An outlet of described T-piece splitting valve is reprinted belt conveyor by finished product and is connected finished product surge bunker; Described finished product electric feeder is arranged at the discharge outlet of finished product surge bunker; Another outlet of described T-piece splitting valve connects coal bunker by coal-fired drag conveyor; The discharge outlet of described coal bunker arranges coal-fired batcher, and is communicated with the feeding mouth of heat energy apparatus; Described heat energy apparatus is provided with the first air blast and the second air blast; The heat smoke outlet of described heat energy apparatus connects the air inlet of drying device by pipeline; The heat smoke exit of described heat energy apparatus connects screen collector by pipeline and forms bypass, and arranges by-passing valve in the junction that the heat smoke of bypass and heat energy apparatus exports; The gas outlet of described screen collector by pipeline communication chimney, and pipeline arranges safety valve; The slag notch place of described heat energy apparatus arranges slag remover; The outlet of described slag remover connects the entrance of bucket elevator of slagging tap by slagging-off belt conveyor; The outlet of described bucket elevator of slagging tap connects slag storehouse; Described gas skirt is arranged at the top of slag remover.
Preferably, described drying device be provided with oxygen analyser.
Preferably, described sack cleaner is provided with temperature measurer.
Preferably, described drying device comprises base, is installed on the housing of the sealing on base, and two are parallel to each other, rotate the rotating shaft be arranged at also through lower housing portion on base, and drive the reducing motor of connection rotating shaft; The top, one end of described housing is provided with feeding air-locked valve and blast pipe, and the bottom of the other end is provided with discharging wind stopping device, and top is provided with air outlet; Described rotating shaft is provided with multiple copy plate by certain forms; The bottom of described housing is the drain pan of two circular arcs arranged side by side, and two rotating shafts to be arranged at above two drain pans and the two axis being parallel respectively, and the copy plate in described rotating shaft is close to the diapire of drain pan; Roof in described housing is provided with the upper plate washer to downward-extension, and diapire is provided with the lower baffle upwards extended, and described upper plate washer and lower baffle are crisscross arranged; The material inlet part of described discharging wind stopping device is higher than the copy plate in rotating shaft.
Preferably, described housing upper is provided with explosion proof door.
Preferably, described copy plate comprises and to be fixedly connected with rotating shaft and the former of surface and rotating shaft cross-section parallel and be fixedly connected on former end and the surperficial lifting blade overlapped with shaft axis.
Preferably, described copy plate comprises and to be fixedly connected with rotating shaft and the former of surface and rotating shaft cross-section parallel and be fixedly connected on former end and the surperficial lifting blade overlapped with shaft axis.
Preferably, the end of described lifting blade is provided with wear rib.
Preferably, described former is symmetrical arranged between two, and is fixedly connected with rotating shaft by two semi arch anchor ears.
Compared with prior art, the utility model tool has the following advantages:
1) applied widely, the dry mass of the utility model dried material and efficiency high, adopt heat smoke directly to contact with dried material, fully, drying effect is good, and disposable precipitation ability is strong, output is high, and single complete equipment can reach 40-60t/h in heat exchange.And floor space is little, cost of investment is low.
2) the utility model provides the coal combustion of heat to be utilize dried material, without the need to being suitable for special fire coal.The oxygen content of drying system may be implemented in line monitoring, and safety has reliable guarantee.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is the sectional view of A-A in Fig. 2.
Fig. 4 is that in Fig. 2, copy plate is installed on the structural representation in rotating shaft.
Fig. 5 is the left view of Fig. 2.
In figure: 1-filter press; 2-coal slime drag conveyor; 3-coal slurry belt conveyer; 4-charging bucket elevator; 5-the first charging drag conveyor; 6-coal slime surge bunker; 7-feeding spiral conveyer; 8-the second charging drag conveyor; 9-feeding air-locked valve; 10-drying device; 11-flow-disturbing valve; 12-cyclone dust collectors; 13-sack cleaner; 14a-the first air-introduced machine; 14b-the second air-introduced machine; 15-the first desulfurizing tower; 16-chimney; 17a-the first lock wind apparatus; 17b-the second lock wind apparatus; 18a first conveying worm; 18b-the second conveying worm; 18c the 3rd conveying worm; 19-reclaim dust cabin; 20-electric feeder; 21-comminutor; 22-finished belt conveyer; 23-finished product bucket elevator; 24-T-piece splitting valve; 25-finished product reprints belt conveyor; 26-finished product surge bunker; 27-finished product electric feeder; 28-coal-fired drag conveyor; 29-coal bunker; 30-coal-fired batcher; 31-heat energy apparatus; 32-by-passing valve; 33-screen collector; 34-safety valve; 35-the second air blast; 36-the first air blast; 37-slag remover; 38-slagging-off belt conveyor; 39-bucket elevator of slagging tap; 40-slag storehouse; 41-automobile; 42-workshop dust-precipitator; 43-the second desulfurizing tower; 44-gas skirt; 45-oxygen analyser; 46-temperature measurer; 51-base; 52-housing; 53-rotating shaft; 54-reducing motor; 55-feeding air-locked valve; 56-blast pipe; 57 discharging wind stopping devices; 80-copy plate; 59-drain pan; 60-upper plate washer; 61-lower baffle; The material inlet part of 62-discharging wind stopping device; 63-explosion proof door; 64-air outlet; 81-former; 82-lifting blade; 83-wear rib; 84-anchor ear.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not paying the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Coal slime drying system shown in Fig. 1, comprises filter press 1, coal slime drag conveyor 2, coal slurry belt conveyer 3, charging bucket elevator 4, first charging drag conveyor 5, coal slime surge bunker 6, feeding spiral conveyer 7, second charging drag conveyor 8, feeding air-locked valve 9, drying device 10, flow-disturbing valve 11, cyclone dust collectors 12, sack cleaner 13, first air-introduced machine 14a, second air-introduced machine 14b, first desulfurizing tower 15, chimney 16, first lock wind apparatus 17a, second lock wind apparatus 17b, first conveying worm 18a, second conveying worm 18b, 3rd conveying worm 18c, reclaim dust cabin 19, electric feeder 20, comminutor 21, finished belt conveyer 22, finished product bucket elevator 23, T-piece splitting valve 24, finished product reprints belt conveyor 25, finished product surge bunker 26, finished product electric feeder 27, coal-fired drag conveyor 28, coal bunker 29, coal-fired batcher 30, heat energy apparatus 31, by-passing valve 32, screen collector 33, safety valve 34, second air blast 35, first air blast 36, slag remover 37, slagging-off belt conveyor 38, to slag tap bucket elevator 39, slag storehouse 40, workshop dust-precipitator 42, second desulfurizing tower 43 and gas skirt 44,
The outlet of described filter press 1 connects the entrance of charging bucket elevator 4 by coal slime drag conveyor 2 and coal slurry belt conveyer 3; The outlet of described charging bucket elevator 4 connects coal slime surge bunker 6 by the first charging drag conveyor 5; The discharging opening of described coal slime surge bunker 6 connects the charging aperture of drying device 10 by feeding spiral conveyer 7 and the second charging drag conveyor 8; Described feeding air-locked valve 9 is arranged at the charging aperture place of drying device 10; Described flow-disturbing valve 11 is arranged at the air outlet place of drying device 10; The discharging opening of described drying device 10 connects finished product belt conveyor 22; The air outlet of described drying device 10 connects the entrance of cyclone dust collectors 12 by pipeline; The material outlet place of described cyclone dust collectors 12 arranges the first lock wind apparatus 17a, and connects finished product belt conveyor 22 by the first conveying worm 18a; The air outlet of described cyclone dust collectors 12 connects the entrance of sack cleaner 13 by pipeline; The material outlet place of described sack cleaner 13 arranges the second lock wind apparatus 17b, and connects recovery dust cabin 19 by the second conveying worm 18b; Described sack cleaner 13 connects the entrance of the first air-introduced machine 14a by pipeline; The outlet of described first air-introduced machine 14a connects the entrance of the first desulfurizing tower 15 by pipeline; The outlet of described first desulfurizing tower 15 is by pipeline communication chimney 16; Described workshop dust-precipitator 42 is connected with the entrance of the second air-introduced machine 14b; The outlet of described second air-introduced machine 14b is communicated with chimney 16; The entrance of described second air-introduced machine 14b connects the outlet of the second desulfurizing tower 43 by pipeline; The entrance of described second desulfurizing tower 43 connects gas skirt 44 by pipeline; The discharging opening of described workshop dust-precipitator 42 connects recovery dust cabin 19 by the 3rd conveying worm 18c; The exit of described recovery dust cabin 19 arranges electric feeder 20, and is connected with the entrance of comminutor 21; The outlet of described comminutor 21 is connected with finished belt conveyer 22; The discharge end of described finished belt conveyer 22 is connected with the entrance of finished product bucket elevator 23; The outlet of described finished product bucket elevator 23 arranges T-piece splitting valve 24; An outlet of described T-piece splitting valve 24 is reprinted belt conveyor 25 by finished product and is connected finished product surge bunker 26; Described finished product electric feeder 27 is arranged at the discharge outlet of finished product surge bunker 26; Another outlet of described T-piece splitting valve 24 connects coal bunker 29 by coal-fired drag conveyor 28; The discharge outlet of described coal bunker 29 arranges coal-fired batcher 30, and is communicated with the feeding mouth of heat energy apparatus 31; Described heat energy apparatus 31 is provided with the first air blast 36 and the second air blast 35; The heat smoke outlet of described heat energy apparatus 31 connects the air inlet of drying device 10 by pipeline; The heat smoke exit of described heat energy apparatus 31 connects screen collector 33 by pipeline and forms bypass, and arranges by-passing valve 32 in the junction that the heat smoke of bypass and heat energy apparatus 31 exports; The gas outlet of described screen collector 33 by pipeline communication chimney 16, and pipeline is arranged safety valve 34; The slag notch place of described heat energy apparatus 31 arranges slag remover 37; The outlet of described slag remover 37 connects the entrance of bucket elevator 39 of slagging tap by slagging-off belt conveyor 38; The outlet of described bucket elevator 39 of slagging tap connects slag storehouse 40; Described gas skirt 44 is arranged at the top of slag remover 37.
Wherein, described drying device 10 be provided with oxygen analyser 45.Described sack cleaner 13 is provided with temperature measurer 46.
As shown in Figure 2-5, described drying device 10 comprises base 51, and the housing 52, two being installed on the sealing on base 51 is parallel to each other, rotate the rotating shaft 53 be arranged at also through housing 52 bottom on base 51, and drives the reducing motor 54 of connection rotating shaft 53; The top, one end of described housing 52 is provided with feeding air-locked valve 55 and blast pipe 56, and the bottom of the other end is provided with discharging wind stopping device 57, and top is provided with air outlet 64; Described rotating shaft 53 is provided with multiple copy plate 80 by certain forms; The bottom of described housing 52 is that drain pan 59, two rotating shafts 53 of two circular arcs arranged side by side to be arranged at above two drain pans 59 and the two axis being parallel respectively, and the copy plate 80 in described rotating shaft 53 is close to the diapire of drain pan 59; Roof in described housing 52 is provided with the upper plate washer 60 to downward-extension, and diapire is provided with the lower baffle 61 upwards extended, and described upper plate washer 60 and lower baffle 61 are crisscross arranged; The material inlet part 62 of described discharging wind stopping device 57 is higher than copy plate 80 outer rim in rotating shaft 53.
Wherein, described housing 52 top is provided with explosion proof door 63.Described copy plate 80 comprises and to be fixedly connected with rotating shaft 53 and the former 81 of surface and rotating shaft 53 cross-section parallel and be fixedly connected on former 81 end and the lifting blade 82 of surface and rotating shaft 53 dead in line.The end of described lifting blade 82 is provided with wear rib 83.Described former 81 is symmetrical arranged between two, and is fixedly connected with rotating shaft 53 by two semi arch anchor ears 84.
When using drying device 10 dry coal slime, rotate backward during two parallel rotating shaft work, copy plate is driven to rotate outer throwing coal slime material, the rotating speed of rotating shaft can realize speed governing with frequency converter, to regulate coal slime material in the speed of shedding of housing, and then regulate the temperature of heat smoke in heat exchanging process and the oxygen content of inside.The blast size of air-introduced machine is also coordinated in actual production process, material can be improved at cavity space heat exchanger effectiveness, reduce material along the resistance in curve movement dismission or polymerization process, reach the moisture controlling dry materials further, save energy consumption, accomplish the controllability to product quality.
The material movement speed of this drying device 10 is fast, realizes raising up of coal slime material shed by copy plate, abundant with hot air heat exchange, and make hot-air and logistics form S shape trend by upper plate washer and lower baffle, exchange efficiency is high, and energy consumption is little, go up plate washer and housing is divided into multiple position in storehouse by lower baffle simultaneously, a bin level after granularity size and humidity arrive and just can enter to a certain degree, granularity material that is large and high humidity is larger owing to conducting oneself with dignity, next position in storehouse cannot be moved in company with hot-air, continue to fall into current position in storehouse to stir realization by copy plate and raise up and shed, and realize the oarse-grained continuous fragmentation of coal slime, its fragmentation is by copy plate, overhead gage, Particle Phase knock against each other hits, and former (rotating percussion cutting) edge clashes into common realization, discharging wind stopping device is finally reached after position in storehouse transition several times, ensure finished particle degree evenly and humidity meet the requirements.Enter the oxygen content of hot-air by controlling blast pipe, the oxygen content of enclosure interior when effectively controlling dry, even also can not produce explosion phenomenon under the operating mode of high temperature and high dust, security is high simultaneously; Material moisture controls better, the uniform granularity of material, the quality of product after effective guarantee oven dry.
The course of work:
Slurry of coal washing plant water is pressed into the coal slime of water content 28%-35% by filter press 1.By coal slime drag conveyor 2, charging bucket elevator 4 reprinted by coal slurry belt conveyer 3.Charging bucket elevator 4 is lifted into the first charging drag conveyor 5 coal slime, reprint through the first charging drag conveyor 5 again and cushion in coal slime surge bunker 6, by controlling the rotating speed of feeding spiral conveyer 7, quantitatively coal is given to the second charging drag conveyor 8, feeding air-locked valve 9 carries the coal slime of coming to be given to uniformly in drying device 10 second charging drag conveyor 8, completes coal slime pan feeding process.
Coal-fired batcher 30 sends into fire coal in the burner hearth of heat energy apparatus 31, combustion-supporting by the first air blast 36 after igniting, second air blast 35 again air blast makes the coal-fired Thorough combustion not having after-flame, the high-temperature flue gas produced, by the negative pressure of sack cleaner 13 end first air-introduced machine 14a, suck drying device 10 directly contact with coal slime and strong mass heat transfer occurs, dried qualified products are expelled to finished belt conveyer 22 by the discharging opening of drying device 10.
Dried qualified products are transported to finished product bucket elevator 23 by finished belt conveyer 22, finished product bucket elevator 23 discharging opening is equipped with T-piece splitting valve 24, when needing coal-fired, T-piece splitting valve 24 commutates and fire coal is assigned to coal-fired drag conveyor 28 li, coal-fired drag conveyor 28 is transported to coal bunker 29 li fire coal, through coal-fired batcher 30, the fire grate that fire coal is given to heat energy apparatus 31 is got on.When not needing fire coal, T-piece splitting valve 24 commutates and material is assigned to finished product reprints on belt conveyor 25, and finished product is reprinted belt conveyor 25 and finished product coal slime is transported in finished product surge bunker 26, by finished product batcher material discharge, is transported to power plant and makes electric coal and other purposes.
The waste gas that dry run produces is under the effect of the first air-introduced machine 14a negative pressure, Environmental-protecting dust-removing subsystem is entered by way of flow-disturbing valve 11, first by cyclone dust collectors 12, reclaim the crude particle dust in waste gas, crude particle dust after recovery is delivered to finished belt conveyer 22, as finished product coal slime by the first conveying worm 18a.The waste gas containing more fine dust continues through sack cleaner 13, and purify compared with the waste gas of fine dust containing, clean flue gas enters air through bag dust device, desulfurizing tower, chimney 16.The comparatively fine dust be recovered to is transported to through the second lock wind apparatus 17b and the second conveying worm 18b and reclaims in dust cabin 19.By the quantitative at the uniform velocity feed of electric feeder 20, mix appropriate water, by comminutor 21 granulating and forming.Finished belt conveyer 22 is pooled to as finished product coal slime.
The slag that heat energy apparatus 31 produces shifts slag remover 37 li cooling onto through fire grate, is transported to slag storehouse 40 by slagging-off belt conveyor 38, bucket elevator 39 of slagging tap.Be transported to cinder brick field with automobile 42 again and make raw material.
Under the suction function of the second air-introduced machine 14b, the dust that in material conveying process, each transfer point produces and waste gas, be drawn onto workshop dust-precipitator 42 li by dust collection pipe, and purify the waste gas containing dust, clean flue gas enters air through chimney 16.The dust be recovered to the 3rd conveying worm 18c is transported to and reclaims in dust cabin 19.By electric feeder 20 quantitatively at the uniform velocity feed, mix appropriate by comminutor 21 granulating and forming.Finished belt conveyer 22 is pooled to as finished product coal slime.
The omnidistance suboxides negative pressure of system cloud gray model is run, safe and reliable for ensureing dry run, the inner oxygen content of drying system controls in the hypoxemia subnormal ambient below 8% all the time, high-temperature flue gas is furnished with bypath system on air main, the operation of drying system is completed by upper control computer communication subsystem, temperature in communication subsystem real-time monitoring system and oxygen content parameter stop the possibility that dry run is blasted, and guarantee dry safe and reliable to operation.
The heat smoke that low calorie device 31 produces is drawn onto in drying device 10 through the negative pressure of the first air-introduced machine 14a; exhaust gases passes between heat energy apparatus 31 and drying device 10 is called air main; bypass blow-down pipe is furnished with in the middle of air main; when shutting down and produce time-out; bypass blow-down pipe, by programme-control first air-introduced machine 14a, the first air blast 36, second air blast, flow-disturbing valve 11, by-passing valve 32, water curtain dedusting and safety valve 34, can drop to the high-temperature flue gas in heat energy apparatus 31 in safe range within the shortest time.Safe and reliable after guaranteeing dry shutdown.
The slag that the sewage that water curtain dedusting spray produces is used for rinsing heat energy apparatus 31 generation is grey, flows into slag remover 37 through slag chute.Waste water between the sewage overflowed and douching wheels, squeezes into concentration basin with pump, sewage in concentration basin after concentrating and precipitating underflow pump into filter press 1 by filter press 1 feeding pump, filtrate water flow back to follows as between industrial water and douching wheels with water, realize the outer row of sewage.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.

Claims (9)

1. a coal slime drying system, comprises filter press, coal slime drag conveyor, coal slurry belt conveyer, charging bucket elevator, first charging drag conveyor, coal slime surge bunker, feeding spiral conveyer, second charging drag conveyor, feeding air-locked valve, drying device, flow-disturbing valve, cyclone dust collectors, sack cleaner, first air-introduced machine, second air-introduced machine, first desulfurizing tower, chimney, first lock wind apparatus, second lock wind apparatus, first conveying worm, second conveying worm, 3rd conveying worm, reclaim dust cabin, electric feeder, comminutor, finished belt conveyer, finished product bucket elevator, T-piece splitting valve, finished product reprints belt conveyor, finished product surge bunker, finished product electric feeder, coal-fired drag conveyor, coal bunker, coal-fired batcher, heat energy apparatus, by-passing valve, screen collector, safety valve, second air blast, first air blast, slag remover, slagging-off belt conveyor, to slag tap bucket elevator, slag storehouse, workshop dust-precipitator, second desulfurizing tower and gas skirt, it is characterized in that:
The outlet of described filter press connects the entrance of charging bucket elevator by coal slime drag conveyor and coal slurry belt conveyer; The outlet of described charging bucket elevator connects coal slime surge bunker by the first charging drag conveyor; The discharging opening of described coal slime surge bunker connects the charging aperture of drying device by feeding spiral conveyer and the second charging drag conveyor; Described feeding air-locked valve is arranged at the charging aperture place of drying device; Described flow-disturbing valve is arranged at the air outlet place of drying device; The discharging opening of described drying device connects finished product belt conveyor; The air outlet of described drying device connects the entrance of cyclone dust collectors by pipeline; The material outlet place of described cyclone dust collectors arranges the first lock wind apparatus, and connects finished product belt conveyor by the first conveying worm; The air outlet of described cyclone dust collectors connects the entrance of sack cleaner by pipeline; The material outlet place of described sack cleaner arranges the second lock wind apparatus, and connects recovery dust cabin by the second conveying worm; Described sack cleaner connects the entrance of the first air-introduced machine by pipeline; The outlet of described first air-introduced machine connects the entrance of the first desulfurizing tower by pipeline; The outlet of described first desulfurizing tower is by pipeline communication chimney; Described workshop dust-precipitator is connected with the entrance of the second air-introduced machine; The outlet of described second air-introduced machine is communicated with chimney; The entrance of described second air-introduced machine connects the outlet of the second desulfurizing tower by pipeline; The entrance of described second desulfurizing tower connects gas skirt by pipeline; The discharging opening of described workshop dust-precipitator connects recovery dust cabin by the 3rd conveying worm; The exit of described recovery dust cabin arranges electric feeder, and is connected with the entrance of comminutor; The outlet of described comminutor is connected with finished belt conveyer; The discharge end of described finished belt conveyer is connected with the entrance of finished product bucket elevator; The outlet of described finished product bucket elevator arranges T-piece splitting valve; An outlet of described T-piece splitting valve is reprinted belt conveyor by finished product and is connected finished product surge bunker; Described finished product electric feeder is arranged at the discharge outlet of finished product surge bunker; Another outlet of described T-piece splitting valve connects coal bunker by coal-fired drag conveyor; The discharge outlet of described coal bunker arranges coal-fired batcher, and is communicated with the feeding mouth of heat energy apparatus; Described heat energy apparatus is provided with the first air blast and the second air blast; The heat smoke outlet of described heat energy apparatus connects the air inlet of drying device by pipeline; The heat smoke exit of described heat energy apparatus connects screen collector by pipeline and forms bypass, and arranges by-passing valve in the junction that the heat smoke of bypass and heat energy apparatus exports; The gas outlet of described screen collector by pipeline communication chimney, and pipeline arranges safety valve; The slag notch place of described heat energy apparatus arranges slag remover; The outlet of described slag remover connects the entrance of bucket elevator of slagging tap by slagging-off belt conveyor; The outlet of described bucket elevator of slagging tap connects slag storehouse; Described gas skirt is arranged at the top of slag remover.
2. coal slime drying system according to claim 1, is characterized in that: described drying device be provided with oxygen analyser.
3. coal slime drying system according to claim 1, is characterized in that: described sack cleaner is provided with temperature measurer.
4. coal slime drying system according to claim 1, it is characterized in that: described drying device comprises base, be installed on the housing of the sealing on base, two are parallel to each other, rotate the rotating shaft be arranged at also through lower housing portion on base, and drive the reducing motor of connection rotating shaft; The top, one end of described housing is provided with feeding air-locked valve and blast pipe, and the bottom of the other end is provided with discharging wind stopping device, and top is provided with air outlet; Described rotating shaft is provided with multiple copy plate by certain forms; The bottom of described housing is the drain pan of two circular arcs arranged side by side, and two rotating shafts to be arranged at above two drain pans and the two axis being parallel respectively, and the copy plate in described rotating shaft is close to the diapire of drain pan; Roof in described housing is provided with the upper plate washer to downward-extension, and diapire is provided with the lower baffle upwards extended, and described upper plate washer and lower baffle are crisscross arranged; The material inlet part of described discharging wind stopping device is higher than the copy plate in rotating shaft.
5. coal slime drying system according to claim 4, is characterized in that: described housing upper is provided with explosion proof door.
6. coal slime drying system according to claim 4, is characterized in that: described copy plate comprises and to be fixedly connected with rotating shaft and the former of surface and rotating shaft cross-section parallel and be fixedly connected on former end and the surperficial lifting blade overlapped with shaft axis.
7. coal slime drying system according to claim 5, is characterized in that: described copy plate comprises and to be fixedly connected with rotating shaft and the former of surface and rotating shaft cross-section parallel and be fixedly connected on former end and the surperficial lifting blade overlapped with shaft axis.
8. coal slime drying system according to claim 6, is characterized in that: the end of described lifting blade is provided with wear rib.
9., according to the arbitrary described coal slime drying system of claim 6-8, it is characterized in that: described former is symmetrical arranged between two, and be fixedly connected with rotating shaft by two semi arch anchor ears.
CN201520240844.3U 2015-04-21 2015-04-21 A kind of coal slime drying system Active CN204555552U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104748508A (en) * 2015-04-21 2015-07-01 云南中翼鼎东能源科技开发有限公司 Coal slurry drying system
CN110790469A (en) * 2019-11-08 2020-02-14 中国矿业大学 Process and device for improving pressure filtration performance of tail coal slime by coal gasification fine slag

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104748508A (en) * 2015-04-21 2015-07-01 云南中翼鼎东能源科技开发有限公司 Coal slurry drying system
CN110790469A (en) * 2019-11-08 2020-02-14 中国矿业大学 Process and device for improving pressure filtration performance of tail coal slime by coal gasification fine slag
CN110790469B (en) * 2019-11-08 2021-03-02 中国矿业大学 Process and device for improving pressure filtration performance of tail coal slime by coal gasification fine slag

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