CN104312598B - semicoke production system - Google Patents
semicoke production system Download PDFInfo
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- CN104312598B CN104312598B CN201410602066.8A CN201410602066A CN104312598B CN 104312598 B CN104312598 B CN 104312598B CN 201410602066 A CN201410602066 A CN 201410602066A CN 104312598 B CN104312598 B CN 104312598B
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B39/00—Cooling or quenching coke
- C10B39/04—Wet quenching
- C10B39/06—Wet quenching in the oven
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B39/00—Cooling or quenching coke
- C10B39/02—Dry cooling outside the oven
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B39/00—Cooling or quenching coke
- C10B39/04—Wet quenching
- C10B39/08—Coke-quenching towers
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
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Abstract
The invention discloses a kind of semicoke production system.The semicoke production system includes distillation system, Water spray cooling device, dry coke quenching auxiliary and semicoke collection device；Wherein, distillation system has semicoke outlet；Water spray cooling device has the first hot semicoke charging aperture that the semicoke outlet with distillation system is connected, and the first cold semicoke discharging opening and water-gas exhaust outlet；Dry coke quenching auxiliary has the second hot semicoke charging aperture being connected with the first cold semicoke discharging opening, and the second cold semicoke discharging opening and quenching gas feed；And semicoke collection device has the collection charging aperture being connected with the second cold semicoke discharging opening.The system sets Water spray cooling device before dry coke quenching auxiliary, makes hot semicoke advanced water-filling spraying cooling before dry coke quenching.Two step quenchings can effectively improve the cooling effectiveness of hot semicoke.Meanwhile, hot semicoke is cooled down using spray mode, moreover it is possible to prevent hot semicoke from occurring rupture under quenching and producing a large amount of smalls.The system realizes closed quenching, can reduce environmental pollution.
Description
Technical field
The present invention relates to coal chemical technology, in particular to a kind of semicoke production system.
Background technology
China's energy resource structure is rich in coal and poor in oil, and the low rank coal organic C storage such as lignite, jet coal, dross coal accounts for China's coal
The half of carbon gross reserves, is seeking to substitute under the promotion of petroleum-based energy and Efficient Development using low rank coal carbon resource trend, low
The development of low temperature distillation technology is accelerated in coal rank coal, and particularly lignite, jet coal low temperature distillation achieves certain commercial Application
Achievement, just progressively moves to maturity.After lignite semi-coke after destructive distillation comes out from carbonization reactor temperature can reach 400 DEG C with
On, and activity is high, if spontaneous combustion is not occurred easily, is caused the accident for its rapid cooling.The semicoke bosher of traditional semicoke industry
Skill is more ripe, is broadly divided into two kinds of coke wet quenching, dry coke quenching, and red Jiao of high temperature is directly discharged into coke quenching pool and is cooled to by the former,
Quenching pool inner water has certain liquid level again, it is ensured that the water-gas during quenching will not overflow；The latter utilizes cold inert gas
(nitrogen or cycle flue gas) is cooled in dry put out in equipment with red burnt heat exchange.
However, for this high activity of lignite semi-coke, the semicoke of low mechanical strength, according to coke wet quenching technique except
, also there is following defect in the defect of the low and high water consume of utilization rate of waste heat：1. after red burnt chance water quenching, the red burnt part hair of one side
Raw reaction, causes semicoke product charcoal to lose；The quenching of another aspect semicoke ruptures, block Jiao's yield reduction, and produces a large amount of ends
Coal；2. during quenching, the organic matter such as tar, phenol is dissolved in water, and contains a large amount of coal dusts, water process difficulty pole in waste water
Greatly；3. lignite semi-coke hole is flourishing, exists and substantially relapse, influence product quality；4. coke wet quenching process is difficult to realize closed, occupation
Hygienic conditions are poor, and easily environment is polluted.Though the defect of coke wet quenching technology is being overcome using dry coke quenching to a certain degree,
Because lignite semi-coke is different from active high, easy spontaneous combustion, the low self-characteristic of mechanical strength of other semicokes, dry coke quenching technique is used
There is also defect：1. to ensure heat exchange efficiency, coke quenching auxiliary is more huge, and single complete equipment disposal ability is relatively low, equipment investment is high；
2. dry coke quenching process control is complex, coke discharging temperature is high, especially for the lignite semi-coke of high activity, if temperature is unable to reach
Less than 50 DEG C, still easily occurs spontaneous combustion；3. after gas-solid heat exchange, recuperated gas easily carries a large amount of superfine powders, follow-up dust pelletizing system
Intractability increase；4. requiring supplementation with supporting indifferent gas supplements (steam or nitrogen) and waste-heat recovery device, investment increases,
Influence Project Economy Benefit.In a word, there is the problem of equipment cost is high, cooling effect is poor in existing semicoke cooling technique.
To overcome the defect of both the above technique, the present invention intends providing a kind of low cost, cooling effect higher semicoke life
Production system.
The content of the invention
The present invention is intended to provide a kind of semicoke production system, with solve in the prior art semicoke production system to the cold of semicoke
But the problem of effect is poor.
To achieve these goals, according to an aspect of the invention, there is provided a kind of semicoke production system, it includes dry
Evaporate system, Water spray cooling device, dry coke quenching auxiliary and semicoke collection device；Wherein, distillation system has semicoke outlet；Water sprays
Drench the first hot semicoke charging aperture that there is cooling device the semicoke outlet with distillation system to be connected, and the first cold semicoke discharging opening
With water-gas exhaust outlet；Dry coke quenching auxiliary has the second hot semicoke charging aperture being connected with the first cold semicoke discharging opening, Yi Ji
Two cold semicoke discharging openings and quenching gas feed；And semicoke collection device has the collection being connected with the second cold semicoke discharging opening
Charging aperture.
Further, Water spray cooling device includes fixed body of heater, fire grate, water spray system and coal moving plate；Wherein, it is fixed
Body of heater is provided with the first hot semicoke charging aperture, the first cold semicoke discharging opening and water-gas exhaust outlet；Axle of the fire grate along fixed body of heater
The heart can be rotatably set in stationary furnace body, between the first hot semicoke charging aperture and the first cold semicoke discharging opening, fire grate tool
There is to accept and convey the stone or metal plate for standing a stove on as a precaution against fire of the hot semicoke entered by the first hot semicoke charging aperture, and be arranged on stone or metal plate for standing a stove on as a precaution against fire, and with the
The corresponding coke outlet of one cold semicoke discharging opening；Water spray system is provided with the mouth spray for extending to fixed furnace interior, is used for
To the hot semicoke spraying cooling water on fire grate；Coal moving plate is arranged on the top of fire grate in fixed body of heater, is welded on stationary furnace
On body, coal moving plate, which is located at, forms hot semicoke circulation between coke outlet and the first cold semicoke discharging opening, and between coal moving plate and fire grate
Passage.
Further, the axle center of coke outlet and the first cold semicoke discharging opening along fixed body of heater is accordingly set.
Further, fire grate also includes the discharge pipe being connected with coke outlet, and discharge pipe discharges through the first cold semicoke
Mouth extends to the outside of fixed body of heater.
Further, coal moving plate is multiple, and traffic direction of multiple coal moving plates along hot semicoke above fire grate is set gradually.
Further, sealed in fire grate between the inwall of the outside of stone or metal plate for standing a stove on as a precaution against fire and fixed body of heater using water seal.
Further, Water spray cooling device also includes motor, and motor is connected with fire grate, driving fire grate rotation
Turn.
Further, dry coke quenching auxiliary is the quenching gas feed in drag conveyor, dry coke quenching auxiliary and distillation system
Outer smokejack gas outlet be connected.
Further, semicoke production system also includes water-gas purifier, and entrance and the water of water-gas purifier spray
The water-gas exhaust outlet for drenching cooling device is connected.
Further, water-gas purifier includes coal dust washer and steam condenser；Wherein, coal dust washer has
Washer air inlet and washer exhaust outlet, washer air inlet are connected with water-gas exhaust outlet；Steam condenser has steam
Condenser air inlet and condenser exhaust gas mouthful, steam condenser air inlet are connected with washer exhaust outlet, condenser exhaust gas mouth and
Water-gas collecting tank air inlet is connected.
Further, condenser exhaust gas mouthful is connected with the heating plant import of distillation system.
Further, semicoke production system also includes technique water treatment facilities, and technique water treatment facilities has the first feed liquor
Mouth, the second inlet, the first liquid outlet, the second liquid outlet and coal dust discharging opening；Wherein：First inlet and coal dust washer
Coal dust washing water out is connected, and the first liquid outlet is connected with the washing water inlet of coal dust washer；Second inlet and steam are cold
The condensation-water drain of condenser is connected；Second liquid outlet is connected with the water spray system of Water spray cooling device.
Further, semicoke production system also includes Coal Briquetting System, for will be produced in semicoke and/or technique water treatment facilities
Raw coal dust filter residue carries out moulded coalification.
Using the semicoke production system of the present invention.Above-mentioned semicoke production system, is provided with water spray before dry coke quenching auxiliary
Drench cooling device so that hot semicoke can be introduced into Water spray cooling device before dry coke quenching auxiliary progress dry coke quenching is entered
Middle progress Water spray cooling.Such two steps extinguishing technique can effectively improve the cooling effectiveness of hot semicoke.Meanwhile, compared to general
Hot semicoke is placed directly within for the method that immersion cooling is carried out in cooling water, hot semicoke is cooled down by the way of spray, except energy
Enough significantly to save outside water consumption, also helping prevents hot semicoke from being ruptured under the situation of quenching, produces a large amount of smalls
Problem.In addition, above-mentioned semicoke production system can also be such that quenching process is carried out in closed environment, environment is advantageously reduced dirty
Dye.
Brief description of the drawings
The Figure of description for constituting the part of the application is used for providing a further understanding of the present invention, and of the invention shows
Meaning property embodiment and its illustrate be used for explain the present invention, do not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 shows the semicoke production system cooling device in one embodiment of the present invention；And
Fig. 2 shows the Water spray cooling device in the semicoke production system in one embodiment of the present invention.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
As background section is introduced, there is the problem of cooling effect is poor in existing semicoke cooling technique.In order to
This problem is solved, inventor provides a kind of semicoke production system, as shown in figure 1, it includes distillation system 10, water
Spray cooling device 20, dry coke quenching auxiliary 30 and semicoke collection device 40；Wherein, distillation system 10 has semicoke outlet 110；Water
Spray cooling device 20 has the first hot semicoke charging aperture 211 that the semicoke outlet 110 with distillation system 10 is connected, and first
Cold semicoke discharging opening 212 and water-gas exhaust outlet 213；Dry coke quenching auxiliary 30 has what is be connected with the first cold semicoke discharging opening 212
Second hot semicoke charging aperture, and the second cold semicoke discharging opening and quenching gas feed 330；And semicoke collection device 40 has
The collection charging aperture being connected with the second cold semicoke discharging opening.
Above-mentioned semicoke production system provided by the present invention, is provided with Water spray cooling device before dry coke quenching auxiliary 30
20 so that hot semicoke can be introduced into Water spray cooling device 20 before the progress dry coke quenching of dry coke quenching auxiliary 30 is entered
Water-filling spraying cooling.Such two steps extinguishing technique can effectively improve the cooling effectiveness of hot semicoke.Meanwhile, compared to by heat half
Jiao is placed directly within for the method that immersion cooling is carried out in cooling water, hot semicoke is cooled down by the way of spray, except can be big
Width is saved outside water consumption, and also helping prevents hot semicoke from being ruptured under the situation of quenching, the problem of producing a large amount of smalls.
In addition, above-mentioned semicoke production system can also be such that quenching process is carried out in closed environment, environmental pollution is advantageously reduced.
Above-mentioned Water spray cooling device 20 provided by the present invention can use arbitrary water spray system, as long as can be to
Hot semicoke provides spraying cooling water.In a preferred embodiment, as shown in Fig. 2 it includes：Fixed body of heater 210,
Fire grate 220, water spray system 230 and coal moving plate 240；Wherein, fixed body of heater 210 is provided with the first hot semicoke charging aperture 211, first
Cold semicoke discharging opening 212 and water-gas exhaust outlet 213；Axle center of the fire grate 220 along fixed body of heater 210 can be rotatably set in solid
Determine in body of heater 210, between the first cold semicoke discharging opening 212 of hot semicoke charging aperture 211 and first, fire grate 220, which has, to be used to
Accept and convey the stone or metal plate for standing a stove on as a precaution against fire of the hot semicoke entered by the first hot semicoke charging aperture 211, and be arranged on stone or metal plate for standing a stove on as a precaution against fire, and with it is first cold
The corresponding coke outlet 221 of semicoke discharging opening 212；Water spray system 230 is provided with the spray extended to inside fixed body of heater 210
Mouthfuls 231, for the hot semicoke spraying cooling water on fire grate 220；Coal moving plate 240 is arranged on fire grate in fixed body of heater 210
220 top, is welded on fixed body of heater 210, coal moving plate 240 be located at the first hot semicoke charging aperture 211 and coke outlet 221 it
Between, and hot semicoke circulation passage is formed between coal moving plate 240 and fire grate 220.
In above-mentioned Water spray cooling device 20 provided by the present invention, it can be carried by water spray system 230 to hot semicoke
Cooling Water.For hot semicoke, which is placed directly within, carries out the method for immersion cooling in cooling water, by the way of spray
Hot semicoke is cooled down, in addition to it significantly can save water consumption, also helping prevents hot semicoke from being broken under the situation of quenching
Split, the problem of producing a large amount of smalls.Meanwhile, the rotatable fire grate 220 in said apparatus can make the stone or metal plate for standing a stove on as a precaution against fire positioned at fire grate 220
Diverse location on hot semicoke by than more uniform cooling, and enable to the cold semicoke formed after cooling to pass through fire grate
220 rotation is moved to the coke outlet 221 of fire grate 220, and then can be reduced because external force acts on the semicoke pulverizing problem occurred.Dial
Coal plate 240 is welded on fixed body of heater 210, and when fire grate 220 rotates, hot semicoke can be relatively evenly laid on by coal moving plate 240
On fire grate, it is possible to hot semicoke is delivered into center coke outlet 212 by outside and discharged, by control rotating speed can faster by
Hot semicoke discharge.In addition, in the presence of coal moving plate 240, the hot semicoke being deposited on fire grate 120 can be spread out rapidly, be made
Hot semicoke being capable of equably radiating and cooling.Meanwhile, these coal moving plates 240 can also make the semicoke after cooling along fire grate 220
Outer lateral coke outlet 221 is moved, and semicoke is continuously cooled, is discharged.In addition, by coal moving plate 240 with rotation fire grate 220
Used cooperatively, the active force produced to semicoke is smaller, and action direction is fixed, and can reduce the pulverization rate of semicoke.Specifically,
By being maintained a certain distance between coal moving plate 240 and fire grate 220, hot semicoke thickness of feed layer is adjusted, control device is exerted oneself.More than
Many factors are conducive to improving the cooling effectiveness and cooling quality of semicoke, meanwhile, the appliance arrangement is simple, operation side
Just, it is adaptable to the large-scale continuous production of semicoke.
To make semicoke more easily spread out, coal moving plate 240 is multiple, and multiple coal moving plates 240 are along the hot semicoke in the top of fire grate 220
Traffic direction set gradually.Herein multiple refer to be more than one.Those skilled in the art have the ability to select multiple coal moving plates
240 specific set-up mode, such as, the direction of motion that can be by multiple coal moving plates 240 along hot semicoke change at different angles
Set.Preferably, axle center of the cold semicoke discharging opening 212 of coke outlet 221 and first along fixed body of heater 210 is accordingly set.For
It is easy to cold semicoke to be moved to coke outlet 221, more preferably stone or metal plate for standing a stove on as a precaution against fire, which has, by the outer lateral direction of coke outlet 221 is increasingly towards cold semicoke
The inclined surface that discharging opening 212 extends.
According to the above-mentioned teaching of the present invention, those skilled in the art have the ability to select the specific discharge method of cold semicoke.It is excellent
Selection of land, above-mentioned fire grate 220 also includes the discharge pipe being connected with coke outlet 221, and discharge pipe passes through the first cold semicoke discharging opening
212 extend to the outside of fixed body of heater 210.More preferably, in fire grate 220 outside of stone or metal plate for standing a stove on as a precaution against fire and fixed body of heater 210 inwall it
Between sealed using water seal 222.The stone or metal plate for standing a stove on as a precaution against fire of fire grate 220 and the fixed inwall of body of heater 210 are sealed using water seal 222, it is possible to increase stove
Internal portion's sealing, while prevent hot semicoke spontaneous combustion, additionally it is possible to fire grate 220 is more successfully rotated.In addition, Water spray is cooled down
Device 20 also includes motor, and motor is connected with fire grate 220, and driving fire grate 220 rotates.
In the above-mentioned Semi-coke cooling device of the present invention, the injection flow rate of water spray system 230 is higher, the cooling velocity of hot semicoke
It is faster, but water consumption is higher, semicoke water content is also higher；The rotating speed of fire grate 220 is higher, and semicoke is close to the coke outlet of fire grate 220
221 speed is faster, and the temperature of semicoke is higher during discharging.For the consideration of balance water consumption, semicoke water content and temperature of the discharging of the coke,
Above-mentioned fire grate 220 is rotated under motor driving.And by going out to set in the cold semicoke discharging opening 212 of coke outlet 221 or the first
Temperature sensing device, to the rotating speed and the injection flow rate of water spray system 230 by the temperature control fire grate 220 that discharges of the coke.Art technology
Personnel have the ability to select specific temperature sensing device, such as, are set preferably at the cold semicoke discharging opening 212 of coke outlet 221 or the first
Thermocouple, the temperature of the discharging of the coke to measure semicoke.According to the temperature of the discharging of the coke, the injection flow rate and fire grate of water spray system 230 are adjusted
220 rotary speed.
Above-mentioned semicoke production system provided by the present invention, further increase is dry after above-mentioned Water spray cooling device 20
Coke quenching device 30, can further be cooled so that the temperature of semicoke to the cold semicoke formed after cooling water spraying temp lowering
It is further reduced to lower temperature.This is conducive to further preventing semicoke easy spontaneous combustion problems caused by temperature is too high.Particularly pair
For the higher lignite semi-coke of activity, cooling again advantageously ensures that the yield of semicoke and the security of production.Meanwhile, use
Spray quenching and dry coke quenching two ways are cooled down to hot semicoke jointly, can further balance cooling water water consumption, cold half
Burnt water content and temperature of the discharging of the coke.Specifically, the dry coke quenching dress that dry coke quenching auxiliary 30 can be well known to those skilled in the art
Put, it is preferable that as shown in figure 1, the dry coke quenching auxiliary 30 is drag conveyor, in order to further reduce semicoke temperature, this is dry to put out
Cooling jacket is carried on coke installation 30, cooling water enters from the water inlet 310 of cooling jacket, from the delivery port 320 of cooling jacket
Out.It is highly preferred that the quenching gas feed 330 and the outer smokejack gas of distillation system 10 in dry coke quenching auxiliary 30 export phase
Even.The outer smokejack gas is discharged after the entrance of quenching gas feed 330 from quenching gas vent 340.The outer row of distillation system 10
Contain more moisture content in flue gas, utilize it as quenching gas, can further improve the cooling effect of semicoke.Meanwhile,
Flue gas by heat exchange has higher temperature, and this advantageously reduces the corrosiveness of its external smoke evacuation chimney.
Using the above-mentioned semicoke production system of the present invention, it becomes possible to reduce the production cost of semicoke, semicoke production is improved
Efficiency.In a preferred embodiment, as shown in figure 1, above-mentioned semicoke production system also includes water-gas purifier, water
The entrance of gas cleaning device is connected with the water-gas exhaust outlet 213 of Water spray cooling device 20.With 230 pairs of water spray system
When hot semicoke carries out spraying cooling, inevitable that the cooling water of the higher semicoke of a part of temperature and spray occurs instead
Should, generate water-gas.Purified treatment is carried out to water-gas using water-gas purifier, the attrital coal in water-gas can be removed
Powder so that water-gas has higher degree, is used with being recovered as him.
In the above-mentioned semicoke production system of the present invention, the water-gas purifier of use can be those skilled in the art institute
Usual water-gas purifier.It is a kind of preferred embodiment in, above-mentioned water-gas purifier include coal dust washer 50
With steam condenser 60, coal dust washer 50 has washer air inlet and washer exhaust outlet, washer air inlet and water coal
Gas exhaust outlet 213 is connected；Steam condenser 60 has steam condenser air inlet and condenser exhaust gas mouthful 620, steam condenser
Air inlet is connected with washer exhaust outlet, and condenser exhaust gas mouthful 620 is connected with water-gas collecting tank air inlet.Coal dust washer 50
For removing the coal dust in the water-gas that the water-gas exhaust outlet 213 of Semi-coke cooling device 10 is discharged, steam condenser 60 is used for
Remove the water vapour in water-gas.After the process that coal dust is removed and vapor is removed, the purity of water-gas is able to effectively carry
It is high.During practical operation, recirculated cooling water can be set in steam condenser 60, it is cooled down from steam condenser
Water inlet 640 enters, and is discharged from steam condenser cooling water outlet 630.
Obtained water-gas is purified from above-mentioned water-gas purifier can directly to reclaim, and is used as clean energy resource.
It is a kind of preferred embodiment in, above-mentioned condenser exhaust gas mouthful 620 is connected with the heating plant import 120 of distillation system 10, use
In to the supplemental heat source of distillation system 10.In addition, for the consideration for saving the energy, above-mentioned semicoke production system also includes at process water
Device 70 is managed, there is technique water treatment facilities 70 first inlet 710, the second inlet 720, the first liquid outlet 730, second to go out
Liquid mouthful 740 and coal dust discharging opening 750；Wherein, the coal dust of the first inlet 710 and coal dust washer 50 washs the phase of water out 530
Even, the first liquid outlet 730 is connected with the washing water inlet 520 of coal dust washer 50；Second inlet 720 and steam condenser 60
Condensation-water drain 610 be connected；Second liquid outlet 740 is connected with the spray water system 230 of Water spray cooling device 20.It is above-mentioned to set
The coal dust washings discharged in coal dust washer 50 and the condensed water discharged in steam condenser 60 can be recycled back to by putting
Receipts are used, to reduce water consumption.So as to reduce energy resource consumption, production cost is reduced.During continuous operation, it can also enter
One step carries out the supplement of cooling water and/or coal dust washings by the 3rd inlet 760.
After hot semicoke enters Water spray cooling device 20 and dry coke quenching auxiliary 30 carries out cooling processing, obtained cold semicoke
It is used directly for preparing moulded coal.Preferably, above-mentioned semicoke production system also includes Coal Briquetting System 80, for by semicoke and/or
The coal dust filter residue produced in technique water treatment facilities 70 carries out moulded coalification.
The present invention is described in further detail below in conjunction with specific embodiment, these embodiments are it is not intended that limit this
Invent scope claimed.
Embodiment 1：
Lignite semi-coke is produced using semicoke production system.Wherein, the overall diameter for body of heater being fixed in Water spray cooling device is
7000mm, height (containing feed and exhaust tube) is 7200mm；It is provided with stationary furnace body in rotatable fire grate, fire grate and stationary furnace body
Wall water seal is sealed, and two coal moving plates are provided with above fire grate；The main material of Semi-coke cooling device is ordinary carbon steel+fire proofed wood
Material, about 80 tons of gross weight.
The temperature that distillation system is produced is 460 DEG C, and particle size range is thrown cold to Water spray for 10~23m lignite semi-coke
But device is cooled down.The temperature obtained after cooling is placed again into drag conveyor for 97 DEG C of semicoke carry out it is cold again
But, the lignite semi-coke that temperature is 46 DEG C is obtained as the dry coke quenching gas in drag conveyor using distillation system discharged gas fume.
Above-mentioned 46 DEG C of lignite semi-coke being carried out to, spontaneous combustion does not occur in accumulating, storage and transport process.After testing, finished product semicoke contains
Water be 6~9wt%, low heat valve be 5500~6000 kilocalories/kilogram, particle size range be 5~20m.Semicoke cooling procedure
Middle water consumption is 30~60 kg/ton.For measuring as 362~450 kgs/hr outside water-gas, water-gas temperature is 90 DEG C, component
For：CO：22wt%, CH4：12wt%, not solidifying combustion gas：14wt%.Single set Semi-coke cooling device design treatment ability is 500
Ton day, year disposal ability be 150,000 tons/year.
Embodiment 2：
Lignite semi-coke is produced using semicoke production system.Wherein, the overall diameter for body of heater being fixed in Water spray cooling device is
18000mm, height (containing feed and exhaust tube) is 12200mm；Rotatable fire grate, fire grate and fixed body of heater are provided with stationary furnace body
Inwall water seal is sealed, and four coal moving plates are provided with above fire grate；The main material of Semi-coke cooling device is ordinary carbon steel+fire proofed wood
Material, the material of fire grate is 304 stainless steels, about 475 tons of gross weight.
The temperature that distillation system is produced is 535 DEG C, and particle size range is thrown to semicoke cooling for 13~20m lignite semi-coke
Device is cooled down.The semicoke that the temperature obtained after cooling is 107 DEG C is placed again into drag conveyor and cooled down again,
Using distillation system discharged gas fume as the dry coke quenching gas in drag conveyor, the lignite semi-coke that temperature is 47 DEG C is obtained.
Above-mentioned 47 DEG C of lignite semi-coke being carried out to, spontaneous combustion does not occur in accumulating, storage and transport process.After testing, finished product semicoke contains
Water be 7~10wt%, low heat valve be 5500~6000 kilocalories/kilogram, particle size range be 7~13m.Semicoke cooling procedure
Middle water consumption is 90~110 kg/ton.For measuring as 1600~1800 kgs/hr outside water-gas, water-gas temperature is 97 DEG C,
Component is：CO：21wt%, CH4：15wt%, not solidifying combustion gas：13wt%.List covers Semi-coke cooling device design treatment ability
2000 ton days, year disposal ability be 1,500,000 tons/year.
In data description more than, it can be seen that using Semi-coke cooling device provided by the present invention to lignite semi-coke
Cooled down, cooling effectiveness is higher, water consumption is relatively low.Meanwhile, using semicoke production system provided by the present invention, utilize spray
Cooling and drag conveyor cool down is combined again, and the lignite semi-coke prepared has a relatively low water content, higher granularity and
Higher low heat valve.Show that lignite semi-coke has higher quality.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (12)
1. a kind of semicoke production system, it is characterised in that including：
Distillation system (10), (110) are exported with semicoke；
Water spray cooling device (20), with the first hot semicoke being connected with the semicoke of the distillation system (10) outlet (110)
Charging aperture (211), and the first cold semicoke discharging opening (212) and water-gas exhaust outlet (213)；
Dry coke quenching auxiliary (30), with the second hot semicoke charging aperture being connected with the described first cold semicoke discharging opening (212), and
Second cold semicoke discharging opening and quenching gas feed (330)；And
Semicoke collection device (40), with the collection charging aperture being connected with the described second cold semicoke discharging opening；
The Water spray cooling device (20) includes：
Fixed body of heater (210), provided with the described first hot semicoke charging aperture (211), the first cold semicoke discharging opening (212) and
The water-gas exhaust outlet (213)；
Fire grate (220), can be rotatably set in the fixed body of heater (210) along the axle center of the fixed body of heater (210), is located at
Between the first hot semicoke charging aperture (211) and the first cold semicoke discharging opening (212), the fire grate (220), which has, to be used
To accept and convey the stone or metal plate for standing a stove on as a precaution against fire of the hot semicoke entered by the described first hot semicoke charging aperture (211), and it is arranged on the stone or metal plate for standing a stove on as a precaution against fire
The upper and coke outlet (221) corresponding with the described first cold semicoke discharging opening (212)；
Water spray system (230), is provided with and extends to the internal mouth spray (231) of the fixed body of heater (210), for positioned at
Hot semicoke spraying cooling water on the fire grate (220)；
Coal moving plate (240), is arranged on the top of fire grate (220) described in the fixed body of heater (210), is fixed on the stationary furnace
On body (210), the coal moving plate (240) is located between the coke outlet (221) and the first hot semicoke charging aperture (211),
And hot semicoke circulation passage is formed between the coal moving plate (240) and the fire grate (220).
2. semicoke production system according to claim 1, it is characterised in that the coke outlet (221) and described first cold
Axle center of the semicoke discharging opening (212) along the fixed body of heater (210) is accordingly set.
3. semicoke production system according to claim 1, it is characterised in that the fire grate (220) also include with it is described go out
Discharge pipe connected Jiao Kou (221), the discharge pipe extends to described solid through the described first cold semicoke discharging opening (212)
Determine the outside of body of heater (210).
4. semicoke production system according to claim 1, it is characterised in that the coal moving plate (240) is multiple, Duo Gesuo
Traffic direction of the coal moving plate (240) along hot semicoke above the fire grate (220) is stated to set gradually.
5. semicoke production system according to claim 1, it is characterised in that in the fire grate (220) outside of stone or metal plate for standing a stove on as a precaution against fire with
Sealed between the inwall of the fixed body of heater (210) using water seal (222).
6. semicoke production system according to claim 1, it is characterised in that the Water spray cooling device (20) also includes
Motor, the motor is connected with the fire grate (220), drives fire grate (220) rotation.
7. semicoke production system according to any one of claim 1 to 6, it is characterised in that the dry coke quenching auxiliary
(30) it is drag conveyor, the quenching gas feed (330) in the dry coke quenching auxiliary (30) and the distillation system (10)
Outer smokejack gas outlet is connected.
8. semicoke production system according to claim 1, it is characterised in that the semicoke production system also includes water-gas
Purifier, the entrance of the water-gas purifier and the water-gas exhaust outlet (213) of the Water spray cooling device (20)
It is connected.
9. semicoke production system according to claim 8, it is characterised in that the water-gas purifier includes：
Coal dust washer (50), with washer air inlet and washer exhaust outlet, the washer air inlet and the water coal
Gas exhaust outlet (213) is connected；
Steam condenser (60), with steam condenser air inlet and condenser exhaust gas mouthful (620), the steam condenser air inlet
Mouth is connected with the washer exhaust outlet, and the condenser exhaust gas mouthful (620) is connected with water-gas collecting tank air inlet.
10. semicoke production system according to claim 9, it is characterised in that the condenser exhaust gas mouthful (620) with it is described
The heating plant import (120) of distillation system (10) is connected.
11. semicoke production system according to claim 9, it is characterised in that the semicoke production system also includes technique
Water treatment facilities (70), the technique water treatment facilities (70) has the first inlet (710), the second inlet (720), first
Liquid outlet (730), the second liquid outlet (740) and coal dust discharging opening (750)；Wherein：
First inlet (710) is connected with the coal dust washing water out (530) of the coal dust washer (50), and described first
Liquid outlet (730) is connected with the washing water inlet (520) of the coal dust washer (50)；
Second inlet (720) is connected with the condensation-water drain (610) of the steam condenser (60)；
Second liquid outlet (740) is connected with the water spray system (230) of the Water spray cooling device (20).
12. semicoke production system according to claim 11, it is characterised in that the semicoke production system also includes moulded coal
System (80), the coal dust filter residue for will be produced in semicoke and/or the technique water treatment facilities (70) carries out moulded coalification.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410602066.8A CN104312598B (en) | 2014-10-30 | 2014-10-30 | semicoke production system |
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| CN107779216B (en) * | 2016-08-24 | 2020-05-01 | 北京三聚环保新材料股份有限公司 | Biomass retort and biochar preparation method |
| CN107189832B (en) * | 2017-06-20 | 2019-02-26 | 新奥科技发展有限公司 | A kind of preparation method of water coke slurry |
| CN109593533A (en) * | 2019-01-30 | 2019-04-09 | 陕西煤业化工技术研究院有限责任公司 | A kind of dry quenching system and method |
| CN110184083A (en) * | 2019-05-29 | 2019-08-30 | 中国成达工程有限公司 | A kind of coal oil residue treatment technique and processing unit |
| CN110835539A (en) * | 2019-11-28 | 2020-02-25 | 陕西北元化工集团股份有限公司 | Semi-dry coke quenching system |
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| CN2880828Y (en) * | 2006-03-07 | 2007-03-21 | 刘心灵 | Quenching device of red coke stewing keeping health dry method |
| JP4938043B2 (en) * | 2009-03-05 | 2012-05-23 | 新日本製鐵株式会社 | Coke dry fire extinguishing method |
| CN201770652U (en) * | 2010-08-16 | 2011-03-23 | 王东辉 | Semi-coke dry quenching system |
| CN102191065B (en) * | 2011-03-29 | 2013-06-05 | 山西星宇舟焦化工程设计有限公司 | Dry-wet combined coke quenching device |
| CN203741270U (en) * | 2013-12-27 | 2014-07-30 | 湖南华银能源技术有限公司 | Quality-lifting processing device for low-rank coal |
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