CN201864709U - Lignite upgrading equipment system utilizing saturated steam - Google Patents
Lignite upgrading equipment system utilizing saturated steam Download PDFInfo
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- CN201864709U CN201864709U CN2010206259958U CN201020625995U CN201864709U CN 201864709 U CN201864709 U CN 201864709U CN 2010206259958 U CN2010206259958 U CN 2010206259958U CN 201020625995 U CN201020625995 U CN 201020625995U CN 201864709 U CN201864709 U CN 201864709U
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Abstract
The utility model discloses a lignite upgrading equipment system utilizing saturated steam, which comprises a screening system, a saturated steam treatment system, a steam recovery and non-condensable gas treatment system, a process water recovery treatment system and a product collecting treatment system. The lignite upgrading equipment system utilizes the saturated steam to upgrade lignite and is fine in safety and convenient in operation. The lignite treated by the system keeps in basic block structure and has thermal value which is increased obviously, water content of the lignite is reduced and suck-back is avoided, and the lignite can be transported in a long distance and stacked conveniently. The complete system is simple in operation, flexible in use and wide in marketing prospect, and waste gas and water generated in the upgrading process can be recycled and reutilized through the steam recovery system, the non-condensable gas treatment system and the process water recovery treatment system so that production cost during upgrading is reduced greatly, energy source utilization rate is increased. Above all, the whole system is subjected to virtuous cycle and realizes energy economization, emission reduction and consumption reduction actually.
Description
Technical field
The utility model relates to a cover brown coal upgrading system, and particularly a kind of device systems that utilizes saturation steam to carry out the brown coal upgrading belongs to coal processing units field.
Background technology
Along with high speed development of national economy, all trades and professions increase day by day to energy demand, and coal is as the basic energy resource of China, and the status in the national economic development is very important.In the disposable energy structure of China, coal accounts for more than 75%, and coal in China output reached 25.3 hundred million tons in 2007, estimated middle period 21st century, coal in the primary energy source structure shared ratio still difficulty be lower than 50%, and the exploitation in high-quality mine also enters the deep mining phase successively at present.
Coal is a kind of porous medium of complexity, in these pore textures, remove be adsorbed with a large amount of methane and carbon dioxide gas external, also contain moisture that quantity do not wait, organism, impurity etc., the colliery of China is many based on the low-quality ore deposit, and brown coal are exactly primary product wherein.
Brown coal are the lower coals of charing degree, brown or brown-black, and tarnish is characterized in: carbon content 60%～77%, thermal value is low, and moisture is big, the volatile matter height, burning-point is lower, about about 270 °, contains free humic acid in the hole greatly, and easy-weathering is cracked in the air.These characteristics has determined brown coal storage and transport difficulty, stores to surpass two months with regard to easily generation spontaneous combustion, stacks highly and should surpass two meters, and the characteristics that thermal value is low also make its coal use that is difficult for being used as power, and affect greatly for the use prospect.
Brown coal are carried out upgrading, are the existing main means that can give full play to the brown coal effect, have both helped the sustainable development of China's coal-mine industry, meet China's fundamental realities of the country again, are the directions of present brown coal enterprise development.The brown coal upgrading be meant brown coal at high temperature stand to dewater and the thermolysis effect after with the moisture in the brown coal and oxygen-containing functional group removes or the part remove, remove ash content too much in the brown coal and moisture, improve the as received basis calorific value of brown coal, no longer revert to take drugs after brown coal moisture is deviate from and brown coal are changed into have process near the high-quality coal of bituminous coal character.
Existing brown coal method for upgrading mainly contains: flue gas method and steaming process.Product after its processing is fine coal substantially, as directly not entering the boiler combustion generating, be subjected to the low influence of powdery and burning-point, transportation and storage process security are relatively poor, cause coal dust to fire easily, and restive, the later stage supporting press-molding apparatus of still needing carries out forming process to the powdery brown coal that machine, just can finish storage or transportation, both increased cost, influenced efficient, also be unfavorable for large-scale application, and used to the brown coal after the upgrading and cause tremendous influence.This is a major defect of existing brown coal upgrading process just, also is technological difficulties, and head it off just becomes main purpose of the present utility model.
Summary of the invention
Deficiency in view of above-mentioned existing situation and brown coal upgrading process, the utility model aims to provide a kind of device systems that utilizes saturation steam to carry out the brown coal upgrading, to reach moisture content in effective reduction brown coal, to prevent that later stage absorption situation from taking place, guarantee good transportation of brown coal and use properties when improving thermal value, giving full play to the purpose that the brown coal burning is worth.
The utility model is achieved through the following technical solutions:
Utilize saturation steam to carry out the device systems of brown coal upgrading, comprise screening system, saturation steam treatment system, vapor recovery and non-condensable gases treatment system, process water recovery and processing system and product collection processing system implementing, described screening system, vapor recovery are with non-condensable gases treatment system, process water recovery and processing system and produce brilliant collection processing system implementing and be connected with the saturation steam treatment system is corresponding respectively.Wherein
Screening system is used for the screening and the break process of brown coal in earlier stage.
The saturation steam treatment system is handled the steam upgrading that brown coal after screening carry out under the state of saturation.
Vapor recovery and non-condensable gases treatment system reclaim and handle non-condensable gases and the steam that produces in the upgrading process.
The process water recovery and processing system is to the process water that produces in the upgrading process processing that is for recycling and reuse.
The product collection processing system implementing is finished cooling, water transfer and the conveying of brown coal after the upgrading.
Described screening system comprises crusher, sieve apparatus and the transfer roller that is linked in sequence, and transfer roller is responsible for the brown coal after broken and the screening are sent in the saturation steam treatment system.
Described saturation steam treatment system comprises feeding unit, drawing mechanism and pressure processor, the charging and discharging device is connected on the opening for feed and discharge port of pressure processor, the input terminus of feeding unit is communicated with transfer roller is terminal, and the output terminal of drawing mechanism is communicated with the product collection processing system implementing; All be provided with steam-in, air outlet and water outlet on charging and discharging device and the pressure processor, the steam-in is used to connect the saturation pressure steam that the external world provides; The air outlet is communicated with the non-condensable gases treatment system with vapor recovery; Water outlet is communicated with the process water recovery and processing system.
Described vapor recovery and non-condensable gases treatment system comprise reducing-and-cooling plant, emptying condenser, hot well, non-condensable gases receiving trap and wet-pit, and reducing-and-cooling plant is connected on the air outlet after gathering in the saturation steam treatment system; Described emptying condenser is connected between the inlet of reducing-and-cooling plant outlet and hot well; Hot well is provided with venting port and water port, and the non-condensable gases receiving trap is connected on the venting port, and wet-pit is connected on the water port of hot well, and the wet-pit outlet is communicated with the waste water reclamation end of process water recovery and processing system.
Described process water recovery and processing system comprises withdrawing can, wet cyclone, flash tank, vapour separator, reboiler and transferpump, withdrawing can is connected on the water outlet after the saturation steam treatment system gathers, spin liquid separator entrance is communicated with the withdrawing can outlet, flash tank is communicated with wet cyclone bottom discharge mouth, vapour separator is communicated with wet cyclone top water port, vapour separator and reboiler constitute the internal circulation heat-exchanging system, the vapour separator top is communicated with the steam-in of saturation steam treatment system, and transferpump is connected on the connecting pipeline between withdrawing can and wet cyclone and vapour separator and the reboiler.
Also be provided with the secondary wet cyclone on the self-circulation pipeline of described vapour separator, the isolated clean liquid of secondary wet cyclone is connected in the circulation passage of vapour separator again.
The heat exchange source medium of described reboiler is high-pressure saturated steam, superheated vapour, thermal oil or flue gas.
Described product collection processing system implementing comprises the scraper plate machine and the moisture setting device of automatic rotation coal distributing device, closed band water cooler, automatically the import of rotation coal distributing device is communicated with the output terminal of drawing mechanism in the saturation steam treatment system, the scraper plate machine of closed band water cooler is with the rotation coal distributing device is corresponding automatically, and the moisture setting device is fixed on scraper plate machine top rear.
The device systems that utilizes saturation steam to carry out the brown coal upgrading described in the utility model comprises screening system, saturation steam treatment system, vapor recovery and non-condensable gases treatment system, process water recovery and processing system and product collection processing system implementing five major parts.Wherein, block brown coal after utilizing saturation steam to screening carry out upgrading to be handled, brown coal directly contact with steam, security is good, control conveniently, and not only moisture reduces the brown coal after the processing, calorific value increases substantially, and kept basic lumphy structure, overcome that finished product is the powdered drawback after the brown coal upgrading before, have the advantage that transportation is simple, use is flexible, easy to process, the blocky upgrading brown coal scope of application obviously increases, and market outlook are wide.The waste gas that produces in the upgrading process then reclaims and cycling and reutilization by vapor recovery and non-condensable gases treatment system, after a small amount of non-condensable gases is received or burns, has avoided in line back pollution on the environment.The water of condensation that produces in the removal process is fed in the process water recovery and processing system with a large amount of process waters that the upgrading process produces, after forming steam, heat exchange adds to once more in the saturation steam treatment system, thereby a large amount of recovery of the energy have been finished, greatly reduce the production cost of upgrading process, improved energy utilization rate.Total system has formed a benign cycle, has really realized purpose energy-conservation, that reduce discharging, lower consumption.
Description of drawings
Fig. 1 is an overall structure schema of the present utility model;
Fig. 2 is the structure flow chart of process water recovery and processing system.
Embodiment
The utility model clou is to utilize saturation steam to carry out the brown coal upgrading to handle, and simultaneously, makes full use of the various waste water, the waste gas that produce in the upgrading process and is recycled.Wherein, after band temperature, processing waste water with pressure are directly reclaimed, be treated as saturation steam and refilled in the pressure processor, saved the energy greatly, reduced the upgrading cost.
Below in conjunction with accompanying drawing 1, Fig. 2 the utility model is further described:
The device systems that utilizes saturation steam to carry out the brown coal upgrading described in the utility model comprises screening system, saturation steam treatment system, vapor recovery and non-condensable gases treatment system, process water recovery and processing system and product collection processing system implementing.
Screening system is mainly used in the screening and the break process of brown coal in early stage, meets the desired brown coal size of saturation steam upgrading process to reach.Screening system mainly comprises crusher 1, sieve apparatus 2 and the transfer roller 3 that is linked in sequence.Material size≤the 300mm of crusher 1, discharging-material size≤100mm enters into sieve apparatus 2 after the brown coal discharging after the fragmentation, sieve by multilayer, raw coal size after the screening is distributed as 5-100mm, and the brown coal after will being sieved by transfer roller 3 more at last are sent in the saturation steam treatment system.
The main effect of this system is exactly by broken and screening with the brown coal raw coal, it is processed into satisfies the desired size of saturation steam upgrading process, and after being sized out less than the brown coal end that not meeting of 5mm handled size, deliver to the thermal source center and act as a fuel, fully realized the target of saving and utilizing to produce the heat exchange source.
The saturation steam treatment system mainly comprises feeding unit 4, drawing mechanism 6 and pressure processor 5.The nucleus equipment that pressure processor 5 is handled for upgrading, the steam upgrading that screening back brown coal are finished in pressure processor 5 under the state of saturation is handled.In the tool, charging and discharging device 4,6 are connected on the opening for feed and discharge port of pressure processor 5, for guaranteeing normal, the reliable operation of pressure processor 5, charging and discharging device 4,6 adopt the ship lock principle to carry out brown coal passes in and out control, guarantees orderly, the turnover smoothly of brown coal in the band pressure condition overdraft treater 5.3 terminal connections of transfer roller in the input terminus of feeding unit 4 and the screening system, accept from the block brown coal after the screening system processing.The output terminal of drawing mechanism 6 is connected with the product collection processing system implementing, and the brown coal after upgrading is handled are stacked by the product collection processing system implementing, makes things convenient for later stage transportation and use.All corresponding steam-in, air outlet and the water outlet of being provided with on charging and discharging device 4,6 and pressure processor 5.The saturation pressure vapor communication that steam-in on charging and discharging device 4,6 and the pressure processor 5 provides with the external world respectively is for charging and discharging device 4,6 and pressure processor 5 provide direct pressure guarantee.Air outlet on charging and discharging device 4,6 and the pressure processor 5 is beneficial to steam and non-condensable gases and discharges then respectively near the top of charging and discharging device 4,6 and pressure processor 5.The air outlet is communicated with the non-condensable gases treatment system with vapor recovery, prepares against the later stage and carries out waste gas energy recovery and utilization again.Water outlet then lays respectively at charging and discharging device 4,6 and pressure processor 5 bottoms, and when being convenient to the process water discharge, the water outlet outer end also is communicated with the process water recovery and processing system.Because water outlet place process water flow is big, temperature is high, also has pressure definitely, it is carried out energy recovery and utilization again, can reduce production costs greatly, enhance productivity.
Vapor recovery and non-condensable gases treatment system comprise reducing-and-cooling plant 11, emptying condenser 7, hot well 9, non-condensable gases receiving trap 12 and wet-pit 8.Reducing-and-cooling plant 11 is connected on the air outlet after gathering in the saturation steam treatment system, and expellant gas mainly comprises the non-condensable gases that steam that decompression process produces and upgrading process produce on the air outlet.Reducing-and-cooling plant 11 be used for expellant gas lower the temperature, step-down.Emptying condenser 7 is connected between reducing-and-cooling plant 11 outlets and hot well 9 inlets, and the waste gas internal pressure after cooling, the step-down reduces, and can form an impellent under the effect of the big pressure in place, air outlet in pipeline.Hot well 9 is connected in 7 outlets of emptying condenser, and hot well 9 is provided with venting port and water port, and wet-pit 8 is connected on the water port, and non-condensable gases receiving trap 12 is connected on the venting port.The further condensation under the normal temperature state of steam after hot well 9 will be lowered the temperature and non-condensable gases, wherein, water of condensation is discharged to the waste water reclamation end of process water recovery and processing system by wet-pit 8 from water port, thereby makes water of condensation obtain once more reclaiming and utilizing.Non-condensable gases on the venting port is then reclaimed by non-condensable gases receiving trap 12, the pollution of having avoided in line back may cause atmosphere.Certainly, also can adopt the mode of direct combustion with the non-condensable gases burning back discharging that receives herein.
The process water recovery and processing system comprises withdrawing can 21, wet cyclone 23, flash tank 24, vapour separator 25, secondary wet cyclone 27, reboiler 26 and a plurality of transferpump of pipeline connection.Transferpump is connected on the connecting pipeline between withdrawing can 21 and wet cyclone 23, wet cyclone 23 and vapour separator 25, vapour separator 25 and reboiler 26 and vapour separator 25 and the secondary wet cyclone 27.Withdrawing can 21 is used for temporarily depositing the pressure waste water of discharging by in charging and discharging device 4,6 and the pressure processor 5.Wet cyclone 23 inlets are connected in the outlet of withdrawing can 21, and flash tank 24 is connected on the water port of wet cyclone 23 bottoms, and the top water port of wet cyclone 23 is communicated with vapour separator 25.The waste water that wet cyclone 23 is used for reclaiming carries out solid-liquid separation, removes the granule foreign that wherein contains, and purifies water, guarantee water quality safety, wherein, the top water port is discharged is clean liquid after separating, and what the bottom discharge mouth was discharged will be the waste water that contains solid impurity.The higher admittedly sewage discharge band pressing system that contains that flash tank 24 is used for separating becomes atmospheric pressure state, and is discharged into Waste Water Treatment outside the battery limit (BL).Vapour separator 25 has constituted an inner loop pipeline heat-exchange system with reboiler 26, is reliability and the security that guarantees heat exchange, and when the heat transferring medium that reboiler 26 is selected for use was thermal oil, its heat exchange evenly, pressure-stabilisation, control be simple.Clean liquid is carried out heat exchange in reboiler 26, change into steam after absorbing heat, and in working cycle, focus in the vapour separator 25, after discharging, vapour separator 25 tops send into the saturation steam treatment system main steam supply line, be charging and discharging device 4,6 and pressure processor 5 saturation steam is provided, reduced energy consumption, saved operation cost.Secondary wet cyclone 27 is connected on the water outlet of vapour separator 25 bottoms, the vapour separator 25 interior liquid waters that 27 pairs of secondary wet cyclones are not finished vaporization carry out purification separation once more, clean liquid is sent back in the circulation passage in the vapour separator 25 again, again participate in the heat exchange in the reboiler 26, the isolated waste water that has impurity is then discharged by secondary wet cyclone 27.
Certainly, the heat exchange source medium of above-mentioned reboiler 26 also can be high-pressure saturated steam, superheated vapour or flue gas etc., and it is selected for use and can decide according to needs of production.
The product collection processing system implementing comprises the scraper plate machine 14 and the moisture setting device 15 of automatic rotation coal distributing device 13, closed band water cooler.Automatically the import of rotation coal distributing device 13 is communicated with the output terminal of drawing mechanism 6 in the saturation steam treatment system, the scraper plate machine 14 of closed band water cooler is with rotation coal distributing device 13 is corresponding automatically, the scraper plate machine 14 of closed band water cooler is finished the temperature-fall period to the product coal when transporting the product coal, and moisture setting device 15 is fixed on scraper plate machine 14 top rear, it carries out moisture by the spray process to the product coal regulates, and guaranteeing the later stage transportation and storing needs.
In the work, the brown coal of raw ore collection at first are transported to and carry out fragmentation in the crusher 1, then through sieve apparatus 2 screening, are transported in the feeding unit 4 that is connected on the pressure processor 5 by transfer roller 3 after sifting out the block brown coal of 5-100mm.Open the charging valve of feeding unit 4, brown coal are added feeding unit 4, close charging valve and discharging valve and other all valves, use saturation steam to give feeding unit 4 pressurizations; When feeding unit 4 is equal with pressure processor 5 pressure, open the discharging valve on the feeding unit 4, make block brown coal utilize gravity to enter into pressure processor 5.After feeding unit 4 all is discharged into pressure processor 5 with feed coal, close the discharging valve of feeding unit 4.The drain tap of opening feeding unit 4 to be realizing feeding unit 4 fast decompression, thereby prepares for the next round coal of feeding unit 4.In this operating process, the saturation steam that uses during supercharging with the direct contact process of cold conditions brown coal in can produce water of condensation, and the part upgrading can take place under the saturated vapor action in brown coal in feeding unit 4, and then removes part moisture.Moisture that this part removes and water of condensation enter the process water recovery and processing system from water outlet together; The non-condensable gases of steam and generation then enters vapor recovery and the non-condensable gases treatment system from the air outlet during decompression.After brown coal enter pressure processor 5, under the saturation pressure vapor action, fumigate by high temperature, high pressure, and behind the maintenance certain hour, the oxygen side chain (as carboxyl, methoxyl group etc.) that contains on the inherent molecular structure of brown coal ruptures, cause the pore of brown coal inside to decay and crosslinking reaction takes place, water is extruded in the brown coal, coal tar migration simultaneously, sealing brown coal pore.Owing to be under the medium temperature and medium pressure condition, the coal tar that generates is difficult for overflowing from brown coal slit and pore, just be free between brown coal slit and the pore, make brown coal transfer hydrophobicity to by wetting ability, reduced the chance that the brown coal inherent moisture adsorbs again, and brown coal hardness increases, and is difficult for fragmentation, so the brown coal after handling still keep its original bulk.At this moment, the non-condensable gases of used steam and generation is constantly discharged from the air outlet that is positioned on the pressure processor 5 in the upgrading process, enter into vapor recovery and non-condensable gases treatment system, and the process water that produces also the water outlet from pressure processor 5 be discharged to the process water recovery and processing system.After the brown coal upgrading is finished, when from drawing mechanism 6, sending, because same employing is the ship lock principle, correspondingly also have waste water and waste gas to be drained into respectively in process water recovery and processing system and vapor recovery and the non-condensable gases treatment system, thereby realized the omnidistance resource of upgrading process and recovery, the utilization again of heat energy.The product coal of discharging, automatically being rotated coal distributing device 13 constantly delivers on the scraper plate machine 14 of closed band water cooler, in scraper plate machine 14 transport process, water cooler is constantly to the processing of lowering the temperature of product coal, the resorption and the dieseling of product coal have been prevented, and be positioned at the moisture setting device 15 of scraper plate machine 14 top rear, also can carry out spraying early stage water transfer to the product coal as required, to satisfy the later stage transportation and to store needs.
In the whole upgrading process, the waste water of discharge, steam, non-condensable gases not only temperature are higher, also have certain pressure, are the major objective and the objects of recycling in the energy-saving and emission-reduction.
In vapor recovery and non-condensable gases treatment system, steam and non-condensable gases at first enter into reducing-and-cooling plant 11, reducing-and-cooling plant 11 is lowered the temperature waste gas, step-down is handled the back and is formed the space that internal pressure is less, under the effect of the big pressure in place, air outlet, waste gas is pushed into and continues cooling in the emptying condenser 7, produce water of condensation simultaneously, water of condensation flows under the influence of gravity in the hot well 9, non-condensable gases is discharged by the venting port at hot well 9 tops in hot well 9, reclaimed by non-condensable gases receiving trap 12, and the water of condensation after further lowering the temperature in hot well 9 is under the effect of wet-pit 8, by the waste water reclamation end of water port inflow process water recovery and processing system, the recovery once more and the utilization of water of condensation have been finished.
In the process water recovery and processing system, process water at first is brought to 21 li of withdrawing cans, is sent in the wet cyclone 23 under the effect of transferpump then.Process water is fast rotational in wet cyclone 23, under centrifugal force and gravity and buoyancy function, heavier granular substance screws out from the bottom of wet cyclone 23 in the process water, enter flash tank 24, when flash tank 24 was discharged the sewage of separating, just sewage changed atmospheric pressure state into from the band pressure condition.Clean most of clean liquid then screws out from the wet cyclone top, is transported in the vapour separator 25 by connecting tube.In wet cyclone 23, the solid particulate in the process water more than 90% can effectively separate, and has farthest realized process goal and water purification requirement.Because vapour separator 25 and reboiler 26 have been formed the hot switching path of internal recycle, thermal medium in the reboiler 26 can convert the liquid of flowing through to steam fast, when steam is gathered the formation saturation steam in vapour separator 25 after, constantly added in the saturation steam treatment system, formed the recycling of the energy.And in order further to improve the efficiency of conversion of steam, guarantee conversion quality, on the self-circulation channel of vapour separator 25, also be provided with secondary wet cyclone 27, the liquid that secondary wet cyclone 27 will not gasify can carry out solid-liquid separation once more, with the cleaning of keeping this system and unobstructed, clean liquid after the separation is passed in the vapour separator 25 again, thereby realizes recycle once more.
Claims (8)
1. utilize saturation steam to carry out the device systems of brown coal upgrading, it is characterized in that, comprise screening system, saturation steam treatment system, vapor recovery and non-condensable gases treatment system, process water recovery and processing system and product collection processing system implementing, described screening system, vapor recovery are connected with the saturation steam treatment system is corresponding respectively with non-condensable gases treatment system, process water recovery and processing system and product collection processing system implementing; Wherein,
Screening system is used for the screening and the break process of brown coal in earlier stage;
The saturation steam treatment system is handled the steam upgrading that brown coal after screening carry out under the state of saturation;
Vapor recovery and non-condensable gases treatment system reclaim and handle non-condensable gases and the steam that produces in the upgrading process;
The process water recovery and processing system is to the process water that produces in the upgrading process processing that is for recycling and reuse;
The product collection processing system implementing is finished cooling, water transfer and the conveying of brown coal after the upgrading.
2. the device systems that utilizes saturation steam to carry out the brown coal upgrading according to claim 1, it is characterized in that, described screening system comprises crusher, sieve apparatus and the transfer roller that is linked in sequence, and described transfer roller is responsible for the brown coal after broken and the screening are sent in the saturation steam treatment system.
3. the device systems that utilizes saturation steam to carry out the brown coal upgrading according to claim 1, it is characterized in that, described saturation steam treatment system comprises feeding unit, drawing mechanism and pressure processor, described charging and discharging device is connected on the opening for feed and discharge port of pressure processor, the input terminus of feeding unit is communicated with transfer roller is terminal, and the output terminal of drawing mechanism is communicated with the product collection processing system implementing; All be provided with steam-in, air outlet and water outlet on described charging and discharging device and the pressure processor, described steam-in is used to connect the saturation pressure steam that the external world provides; Described air outlet is communicated with the non-condensable gases treatment system with vapor recovery; Described water outlet is communicated with the process water recovery and processing system.
4. the device systems that utilizes saturation steam to carry out the brown coal upgrading according to claim 1, it is characterized in that, described vapor recovery and non-condensable gases treatment system comprise reducing-and-cooling plant, emptying condenser, hot well, non-condensable gases receiving trap and wet-pit, and described reducing-and-cooling plant is connected on the air outlet after gathering in the saturation steam treatment system; Described emptying condenser is connected between the inlet of reducing-and-cooling plant outlet and hot well; Described hot well is provided with venting port and water port, and the non-condensable gases receiving trap is connected on the venting port, and wet-pit is connected on the water port of hot well, and the wet-pit outlet is communicated with the waste water reclamation end of process water recovery and processing system.
5. the device systems that utilizes saturation steam to carry out the brown coal upgrading according to claim 1, it is characterized in that, described process water recovery and processing system comprises withdrawing can, wet cyclone, flash tank, vapour separator, reboiler and transferpump, and described withdrawing can is connected on the water outlet after the saturation steam treatment system gathers; Described spin liquid separator entrance is communicated with the withdrawing can outlet; Described flash tank is communicated with wet cyclone bottom discharge mouth; Described vapour separator is communicated with wet cyclone top water port, and vapour separator and reboiler constitute the internal circulation heat-exchanging system, and the vapour separator top is communicated with the steam-in of saturation steam treatment system; Described transferpump is connected on the connecting pipeline between withdrawing can and wet cyclone and vapour separator and the reboiler.
6. the device systems that utilizes saturation steam to carry out the brown coal upgrading according to claim 5, it is characterized in that, also be provided with the secondary wet cyclone on the self-circulation pipeline of described vapour separator, the isolated clean liquid of described secondary wet cyclone is connected in the circulation passage of vapour separator again.
7. the device systems that utilizes saturation steam to carry out the brown coal upgrading according to claim 5 is characterized in that, the heat exchange source medium of described reboiler is high-pressure saturated steam, superheated vapour, thermal oil or flue gas.
8. the device systems that utilizes saturation steam to carry out the brown coal upgrading according to claim 1, it is characterized in that, described product collection processing system implementing comprises the scraper plate machine and the moisture setting device of automatic rotation coal distributing device, closed band water cooler, and the import of described automatic rotation coal distributing device is communicated with the output terminal of drawing mechanism in the saturation steam treatment system; The scraper plate machine of described closed band water cooler is with the rotation coal distributing device is corresponding automatically; Described moisture setting device is fixed on the scraper plate machine and pushes up all rear sides.
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| CN2010206259958U CN201864709U (en) | 2010-11-26 | 2010-11-26 | Lignite upgrading equipment system utilizing saturated steam |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506575A (en) * | 2011-09-21 | 2012-06-20 | 李柏荣 | Treatment process for lignite upgrading waste water and lignite upgrading system |
| CN103087796A (en) * | 2013-02-07 | 2013-05-08 | 中国矿业大学 | Process and system for vibration hot-pressing dehydration quality improvement of brown coal |
| WO2014107910A1 (en) * | 2013-01-11 | 2014-07-17 | Cai Jingpeng | Drying method and drying apparatus for lignite particles and pulverized coal after granulation |
| WO2014107913A1 (en) * | 2013-01-11 | 2014-07-17 | Cai Jingpeng | Pulverized coal granulation method and apparatus thereof for lignite |
-
2010
- 2010-11-26 CN CN2010206259958U patent/CN201864709U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506575A (en) * | 2011-09-21 | 2012-06-20 | 李柏荣 | Treatment process for lignite upgrading waste water and lignite upgrading system |
| CN102506575B (en) * | 2011-09-21 | 2014-06-18 | 千秋能源（上海）有限公司 | Treatment process for lignite upgrading waste water and lignite upgrading system |
| WO2014107910A1 (en) * | 2013-01-11 | 2014-07-17 | Cai Jingpeng | Drying method and drying apparatus for lignite particles and pulverized coal after granulation |
| WO2014107913A1 (en) * | 2013-01-11 | 2014-07-17 | Cai Jingpeng | Pulverized coal granulation method and apparatus thereof for lignite |
| CN103087796A (en) * | 2013-02-07 | 2013-05-08 | 中国矿业大学 | Process and system for vibration hot-pressing dehydration quality improvement of brown coal |
| CN103087796B (en) * | 2013-02-07 | 2014-04-16 | 中国矿业大学 | Process and system for vibration hot-pressing dehydration and quality improvement of brown coal |
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