CN105537120B - The system and method for handling low-order coal - Google Patents

The system and method for handling low-order coal Download PDF

Info

Publication number
CN105537120B
CN105537120B CN201610053772.0A CN201610053772A CN105537120B CN 105537120 B CN105537120 B CN 105537120B CN 201610053772 A CN201610053772 A CN 201610053772A CN 105537120 B CN105537120 B CN 105537120B
Authority
CN
China
Prior art keywords
coal
outlet
cleaned
low
entrance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201610053772.0A
Other languages
Chinese (zh)
Other versions
CN105537120A (en
Inventor
赵小楠
丁力
路丙川
吴道洪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenwu Technology Group Corp Co Ltd
Original Assignee
Shenwu Technology Group Corp Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenwu Technology Group Corp Co Ltd filed Critical Shenwu Technology Group Corp Co Ltd
Priority to CN201610053772.0A priority Critical patent/CN105537120B/en
Publication of CN105537120A publication Critical patent/CN105537120A/en
Application granted granted Critical
Publication of CN105537120B publication Critical patent/CN105537120B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B9/00Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10BDESTRUCTIVE DISTILLATION OF CARBONAGEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B53/00Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
    • C10B53/08Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form in the form of briquettes, lumps and the like
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/10Process efficiency
    • Y02P20/129Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Abstract

The invention discloses the system and method for processing low-order coal, the system includes:Low-order coal breaker;Low-order coal screening plant;Lump coal hot blast dense medium separation device, with the outlet of lump coal entrance, the first hot-wind inlet, the first solid dense media entrance and the first cleaned coal;Fine coal hot blast dense medium separation device, with the outlet of fine coal entrance, the second hot-wind inlet, the second dense media entrance and the second cleaned coal;Cleaned coal breaker;Shaped device;Pyrolysis installation, with feeding mouth, semicoke outlet and pyrolysis oil gas vent;Waste-heat recovery device, waste-heat recovery device has semicoke entrance and heat outlet, and semicoke entrance is connected with pyrolysis installation, and heat outlet is connected with the first hot-wind inlet and the second hot-wind inlet.The system can significantly improve the rate of discharging refuse of low-order coal, so as to improve the quality and yield of pyrolysis product in follow-up pyrolytic process, and by the way that the waste heat recovery produced in pyrolytic process is used for into discharge refuse process, can significantly reduce energy cost.

Description

The system and method for handling low-order coal
Technical field
The invention belongs to technical field of coal chemical industry, specifically, the present invention relates to a kind of system for handling low-order coal and side Method.
Background technology
The characteristics of coal resources in China is rich coal, oil-poor, few gas, and coal is in China's energy within long period of time Status will not change.The rich reserves of low-order coal in coal resources, predict, low-order coal accounts for coal according to International Geological scholar The 60% of resource reserve, is one of following utilizable main energy sources, be distributed mainly on Australia, the U.S., Russia, in State, Indonesia, Germany and all states in Eastern Europe etc..Low-order coal mainly includes non caking coal, weakly caking coal, jet coal and lignite etc., with moisture It is high, density is small, volatile matter is high, do not cohere, chemical reactivity is strong, heat endurance is poor and the low feature of caloric value.
Although coal fully connects with water during can removing the dirt in low-order coal, wet split by sorting Touch, cause coal selecting product moisture to increase, reduce product caloric value, partial offset coal washing effect, the mesh being also dehydrated with upgrading Mark is contradicted, and the surface moisture of coal make it that the sticking probability between particle is big during the dry separation of normal temperature, discharge refuse effect Difference.Although single drying and low temperature distillation technology improve ash, sulphur in the calorific value of low-order coal, upgraded coal to a certain extent The compounds such as the quality of following process product, and sulfur-bearing, nitrogen are influenceed to pollute environment and equipment corrosion Deng dirt.Cause This, develops new low-order coal process for upgrading, and the industrial chemicals for providing super quality and competitive price for low-order coal deep processing turns into new research side To.
The content of the invention
It is contemplated that at least solving one of technical problem in correlation technique to a certain extent.Therefore, the present invention One purpose is to propose a kind of system and method for handling low-order coal, and the system can significantly improve the rate of discharging refuse of low-order coal, So as to improve the quality and yield of pyrolysis product in follow-up pyrolytic process, and by by the waste heat produced in pyrolytic process Reclaim for discharge refuse process, energy cost can be significantly reduced.
In one aspect of the invention, the present invention proposes a kind of system for handling low-order coal.According to the implementation of the present invention Example, the system includes:
Low-order coal breaker, the low-order coal breaker has low-order coal entrance and broken coal export;
Low-order coal screening plant, the low-order coal screening plant has break up coal entrance, lump coal outlet and fine coal outlet;
Lump coal hot blast dense medium separation device, the lump coal hot blast dense medium separation device has lump coal entrance, the first heat Wind entrance, the first solid dense media entrance, the outlet of the first spoil, the outlet of the first cleaned coal and the first offgas outlet, the lump coal enter Mouth is connected with lump coal outlet;
Fine coal hot blast dense medium separation device, the fine coal hot blast dense medium separation device has fine coal entrance, the second heat Wind entrance, the second solid dense media entrance, the outlet of the second spoil, the outlet of the second cleaned coal and the second offgas outlet, the fine coal enter Mouth is connected with fine coal outlet;
Cleaned coal breaker, the cleaned coal breaker has cleaned coal entrance and powder outlet, the cleaned coal entrance and institute The outlet of the second cleaned coal is stated to be connected;
Shaped device, the shaped device has powder entrance and pelletizing outlet, and the powder entrance goes out with the powder Mouth is connected;
Pyrolysis installation, the pyrolysis installation has feeding mouth, semicoke outlet and pyrolysis oil gas vent, the feeding mouth and institute The outlet of the first cleaned coal is stated with pelletizing outlet to be connected;And
Waste-heat recovery device, the waste-heat recovery device has semicoke entrance, the outlet of cooling semicoke and heat outlet, described Semicoke entrance is connected with semicoke outlet, and the heat outlet enters with first hot-wind inlet and second hot blast respectively Mouth is connected.
Thus, the system of processing low-order coal according to embodiments of the present invention with classification by classification and sorting technology by drying skill Art is coupled, and low-order coal is crushed in advance, classification is sorted and dried respectively again after handling, and improves the efficiency of separation of low-order coal, It can significantly reduce and load is handled in subsequent process, and significantly reduce the generation of haze in processing procedure, while using dense media Screening gained lump coal and fine coal are sorted respectively, the sharpness of separation of lump coal and fine coal can be significantly improved, so that the row of raising Energy consumption is pyrolyzed in cash efficiency, and then reduction subsequent process, thus not only realizes and dries and discharge refuse integration, and pass through drying Processing can remove the moisture on lump coal and fine coal surface, (especially cleaned coal and cash so as to reduce in assorting room between particle Between stone) bonding probability, solve the problem of existing combined type discharge refuse technology is low to low-order coal rate of discharging refuse, and solve Semicoke calorific value after pyrolysis is low, high ash content and the problem of high sulphur content, i.e., can be significantly improved and was pyrolyzed using the system of the present invention The quality of pyrolysis product in journey, while by the way that processing is dried before pyrolysis processing is carried out to low-order coal, can significantly carry Hydrocarbon yield in high pyrolytic process, secondly by by dense medium separation and pyrolytic technique organic integration, cleverly by pyrolytic process The waste heat of middle generation be used for lump coal dense medium separation and fine coal dense medium separation process, can significantly reduce the processing procedure energy into This, resupplies to pyrolysis after being crushed, be molded successively additionally by the cleaned coal for obtaining fine coal hot blast dense medium separation device Pyrolysis processing is carried out in device, raw material availability can be significantly improved, and then reduce cost of material.
In addition, the system of processing low-order coal according to the above embodiment of the present invention can also have technology additional as follows special Levy:
In some embodiments of the invention, the system of the processing low-order coal further comprises:Cleaned coal screening plant, institute Cleaned coal screening plant is stated to export with the first cleaned coal entrance, the upper cleaned coal outlet of sieve and the lower cleaned coal of sieve, the first cleaned coal entrance and First cleaned coal outlet is connected, and cleaned coal outlet is connected with the feeding mouth on the sieve, under the sieve cleaned coal export with it is described Cleaned coal entrance is connected.Thus, it is possible to significantly improve raw material availability.
In some embodiments of the invention, the system of the processing low-order coal further comprises:Dust arrester, it is described to remove Dirt device has gas inlet, gas vent and a dust outlet, the gas inlet and first offgas outlet and described the Two offgas outlets are connected, and the dust outlet is connected with the powder entrance.Thus, it is possible to further improve raw material availability.
In another aspect of the invention, the present invention proposes a kind of method for handling low-order coal.According to the reality of the present invention Example is applied, this method is carried out using the system of processing low-order coal described above.According to a particular embodiment of the invention, this method Including:
(1) low-order coal is supplied and carries out break process into the low-order coal breaker, to obtain break up coal;
(2) break up coal is supplied and carries out screening process into the low-order coal screening plant, so as to obtain lump coal and Fine coal;
(3) lump coal is supplied into the lump coal hot blast dense medium separation device using the first hot blast and the first solid Dense media is sorted and drying process to the lump coal, to respectively obtain the first spoil, the first cleaned coal and containing dust First tail gas;
(4) fine coal is supplied into the fine coal hot blast dense medium separation device using the second hot blast and the second solid Dense media is sorted and drying process to the fine coal, to respectively obtain the second spoil, the second cleaned coal and containing dust Second tail gas;
(5) second cleaned coal is supplied and carries out break process into the cleaned coal breaker, to obtain powder;
(6) powder is supplied and forming processes is carried out into the shaped device, to obtain pelletizing;
(7) first cleaned coal and the pelletizing are supplied and pyrolysis processing is carried out into the pyrolysis installation, to obtain Semicoke and pyrolysis oil gas;And
(8) semicoke is supplied to the waste-heat recovery device and carries out waste heat recovery processing, to obtain cooling down semicoke And hot gas, and a part of return to step (3) of the hot gas is used as first hot blast, by another portion of the hot gas Point return to step (4) is used as second hot blast.
Thus, the method for processing low-order coal according to embodiments of the present invention with classification by classification and sorting technology by drying skill Art is coupled, and low-order coal is crushed in advance, classification is sorted and dried respectively again after handling, and improves the efficiency of separation of low-order coal, It can significantly reduce and load is handled in subsequent process, and significantly reduce the generation of haze in processing procedure, while using dense media Screening gained lump coal and fine coal are sorted respectively, the sharpness of separation of lump coal and fine coal can be significantly improved, so that the row of raising Energy consumption is pyrolyzed in cash efficiency, and then reduction subsequent process, thus not only realizes and dries and discharge refuse integration, and pass through drying Processing can remove the moisture on lump coal and fine coal surface, (especially cleaned coal and cash so as to reduce in assorting room between particle Between stone) bonding probability, solve the problem of existing combined type discharge refuse technology is low to low-order coal rate of discharging refuse, and solve Semicoke calorific value after pyrolysis is low, high ash content and the problem of high sulphur content, i.e., can be significantly improved and was pyrolyzed using the method for the present invention The quality of pyrolysis product in journey, while by the way that processing is dried before pyrolysis processing is carried out to low-order coal, can significantly carry Hydrocarbon yield in high pyrolytic process, secondly by by dense medium separation and pyrolytic technique organic integration, cleverly by pyrolytic process The waste heat of middle generation be used for lump coal dense medium separation and fine coal dense medium separation process, can significantly reduce the processing procedure energy into This, resupplies to pyrolysis after being crushed, be molded successively additionally by the cleaned coal for obtaining fine coal hot blast dense medium separation device Pyrolysis processing is carried out in device, raw material availability can be significantly improved, and then reduce cost of material.
In addition, the method for processing low-order coal according to the above embodiment of the present invention can also have technology additional as follows special Levy:
In some embodiments of the invention, the method for the processing low-order coal further comprises:(9) by described first Cleaned coal is supplied into the pyrolysis installation before carrying out pyrolysis processing, supplies first cleaned coal to the cleaned coal sieve in advance Screening process is carried out in device, to obtain sieving upper cleaned coal and the lower cleaned coal of sieve, and cleaned coal on the sieve is supplied to the pyrolysis Device, cleaned coal under the sieve is supplied to the cleaned coal breaker.Thus, it is possible to significantly improve raw material availability.
In some embodiments of the invention, the method for the processing low-order coal further comprises:(10) contain described First tail gas of dust and second tail gas containing dust supply and dust removal process are carried out into the dust arrester, to receive Collect dust, and the dust return to step (6) and the powder are subjected to the forming processes.Thus, it is possible to further improve Raw material availability.
In some embodiments of the invention, in step (1), the particle diameter of the break up coal is not higher than 80mm.Thus, may be used To significantly improve follow-up separation efficiency.
In some embodiments of the invention, in step (3), in step (3), the temperature of first hot blast is 60~110 degrees Celsius, the first dense media fluidizing velocity is 0.8~1.7m/s, and separating density is 1.3~1.9g/cm3.Thus, may be used To significantly improve drying and the discharge refuse efficiency of lump coal.
In some embodiments of the invention, in step (4), the temperature of second hot blast is 60~110 degrees Celsius, Second dense media fluidizing velocity is 0.7~1.6m/s, and separating density is 1.3~1.9g/cm3.Thus, it is possible to significantly improve fine coal Drying and discharge refuse efficiency.
In some embodiments of the invention, in step (2), the particle diameter of the lump coal is not less than 6mm.
In some embodiments of the invention, in step (9), the particle diameter of cleaned coal is not less than 10mm on the sieve.
In some embodiments of the invention, in step (5), the particle diameter of the powder is not higher than 3mm.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become from description of the accompanying drawings below to embodiment is combined Substantially and be readily appreciated that, wherein:
Fig. 1 is the system structure diagram of processing low-order coal according to an embodiment of the invention;
Fig. 2 is the system structure diagram of the processing low-order coal according to further embodiment of the present invention;
Fig. 3 is the system structure diagram of the processing low-order coal according to another embodiment of the invention;
Fig. 4 is the method flow schematic diagram of processing low-order coal according to an embodiment of the invention;
Fig. 5 is the method flow schematic diagram of the processing low-order coal according to further embodiment of the present invention;
Fig. 6 is the method flow schematic diagram of the processing low-order coal according to another embodiment of the invention;
Fig. 7 is the system structure diagram of the processing low-order coal according to another embodiment of the invention.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and be not considered as limiting the invention.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer ", " up time The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or Position relationship, is for only for ease of the description present invention and simplifies description, rather than indicate or imply that the device or element of meaning must There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or Implicitly include at least one this feature.In the description of the invention, " multiple " are meant that at least two, such as two, three It is individual etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc. Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally;Can be that machinery connects Connect or electrically connect;Can be joined directly together, can also be indirectly connected to by intermediary, can be in two elements The connection in portion or the interaction relationship of two elements, unless otherwise clear and definite restriction.For one of ordinary skill in the art For, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature It is that the first and second features are directly contacted, or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height less than second feature.
In one aspect of the invention, the present invention proposes a kind of system for handling low-order coal.According to the implementation of the present invention Example, the system includes:Low-order coal breaker, the low-order coal breaker has low-order coal entrance and broken coal export;It is low Rank screen separating device, the low-order coal screening plant has break up coal entrance, lump coal outlet and fine coal outlet;Lump coal hot blast dense medium Matter sorting unit, the lump coal hot blast dense medium separation device has lump coal entrance, the first hot-wind inlet, the first solid dense media Entrance, the outlet of the first spoil, the outlet of the first cleaned coal and the first offgas outlet, the lump coal entrance are connected with lump coal outlet; Fine coal hot blast dense medium separation device, the fine coal hot blast dense medium separation device has fine coal entrance, the second hot-wind inlet, Two solid dense media entrances, the outlet of the second spoil, the outlet of the second cleaned coal and the second offgas outlet, the fine coal entrance and the powder Coal export is connected;Cleaned coal breaker, the cleaned coal breaker has cleaned coal entrance and a powder outlet, the cleaned coal entrance with The second cleaned coal outlet is connected;Shaped device, the shaped device has powder entrance and pelletizing outlet, the powder entrance It is connected with the powder outlet;Pyrolysis installation, the pyrolysis installation has feeding mouth, semicoke outlet and pyrolysis oil gas vent, institute State feeding mouth exported with first cleaned coal and the pelletizing outlet be connected;And waste-heat recovery device, the waste heat recovery dress Put with semicoke entrance, the outlet of cooling semicoke and heat outlet, the semicoke entrance is connected with semicoke outlet, the hot gas Outlet is connected with first hot-wind inlet and second hot-wind inlet respectively.Inventor has found, by by classification and sorting skill Art is coupled with classification dry technology, low-order coal is crushed in advance, classification is sorted and dried respectively again after handling, and improves low order The efficiency of separation of coal, can significantly reduce and load is handled in subsequent process, and significantly reduce the generation of haze in processing procedure, together Shi Caiyong dense media is sorted to screening gained lump coal and fine coal respectively, can significantly improve the sorting essence of lump coal and fine coal Degree, so as to improve discharge refuse efficiency, and then is pyrolyzed energy consumption in reduction subsequent process, thus not only realizes and dries and discharge refuse one Change, and the moisture on lump coal and fine coal surface can be removed by drying process, so as to reduce in assorting room between particle The bonding probability of (especially between cleaned coal and spoil), solves existing combined type discharge refuse technology low to low-order coal rate of discharging refuse Problem, and solve after pyrolysis semicoke calorific value is low, high ash content and the problem of high sulphur content, that is, use the system of the present invention can be with The quality of pyrolysis product in pyrolytic process is significantly improved, while by the way that place is dried before pyrolysis processing is carried out to low-order coal Reason, can significantly improve hydrocarbon yield in pyrolytic process, ingenious secondly by by dense medium separation and pyrolytic technique organic integration By the waste heat produced in pyrolytic process be used for lump coal dense medium separation and fine coal dense medium separation process, place can be significantly reduced Reason process energy cost, after being crushed, be molded successively additionally by the cleaned coal for obtaining fine coal hot blast dense medium separation device Resupply into pyrolysis installation and carry out pyrolysis processing, raw material availability can be significantly improved, and then reduce cost of material.
System below with reference to the processing low-order coal of Fig. 1-3 pairs of embodiment of the present invention is described in detail.According to the present invention Embodiment, the system includes:Low-order coal breaker 100, low-order coal screening plant 200, lump coal hot blast dense medium separation dress Put 300, fine coal hot blast dense medium separation device 400, cleaned coal breaker 500, shaped device 600, pyrolysis installation 700 and waste heat Retracting device 800.
Embodiments in accordance with the present invention, low-order coal breaker 100 has low-order coal entrance 101 and broken coal export 102, And suitable for carrying out break process to low-order coal, so as to obtain break up coal.Thus, it is possible to significantly improve low order in subsequent process The efficiency of separation of coal.
According to one embodiment of present invention, the particle diameter of break up coal is not particularly restricted, and those skilled in the art can be with Selected according to actual needs, according to a particular embodiment of the invention, the particle diameter of break up coal can be not higher than 80mm.Invention People has found that the break up coal of the particle size range can be substantially better than the discharge refuse efficiency that other particle diameters improve subsequent process.In the step, Specifically, carrying out break process to low-order coal, the break up coal that obtained particle diameter is not higher than 80mm is supplied into subsequent handling, and is obtained To particle diameter continue to come back for crushing higher than 80mm break up coal, until particle diameter is not higher than 80mm.It should be noted that ability Field technique personnel can be selected the breaker of use according to actual needs.
Embodiments in accordance with the present invention, low-order coal screening plant 200 has break up coal entrance 201, lump coal outlet 202 and powder Coal export 203, break up coal entrance 201 is connected with broken coal export 102, and suitable for break up coal is carried out into screening process, so as to To obtain lump coal and fine coal.Thus, before break up coal is carried out into discharge refuse processing, classification processing is carried out to break up coal in advance, can To significantly reduce the processing load in subsequent process, and the generation of haze in subsequent process can be avoided.
According to one embodiment of present invention, the particle diameter of lump coal is not particularly restricted, and those skilled in the art can root Selected according to being actually needed, according to a particular embodiment of the invention, the particle diameter of lump coal can be to be not less than 6mm, and fine coal Particle diameter can be less than 6mm.Thus, by carrying out screening process to break up coal, and by larger grain in subsequent processes The lump coal in footpath and fine coal compared with small particle are sorted respectively, can improve low-order coal while subsequent treatment load is reduced Rate of discharging refuse, so as to significantly improve the quality of pyrolysis product.
Embodiments in accordance with the present invention, lump coal hot blast dense medium separation device 300 has lump coal entrance 301, the first hot blast Entrance 302, the first solid dense media entrance 303, the first spoil export the outlet 305 of the 304, first cleaned coal and the first offgas outlet 306, lump coal entrance 301 is connected with lump coal outlet 202, and suitable for being carried out using the first hot blast and the first solid dense media to lump coal Sorting and drying process, so as to respectively obtain the first spoil, the first cleaned coal and the first tail gas containing dust.Invention human hair It is existing, as that will be sorted using dense media to lump coal obtained by screening, the sharpness of separation of lump coal can be significantly improved, so as to improve Energy consumption is pyrolyzed in discharge refuse efficiency, and then reduction subsequent process, and not only realizes the integration of dry and discharge refuse, and by dry Dry processing can remove the moisture on lump coal surface, so as to reduce in assorting room between particle (especially cleaned coal and spoil it Between) bonding probability, solve the problem of existing combined type discharge refuse technology is low to low-order coal rate of discharging refuse, and solve pyrolysis Rear semicoke calorific value is low, high ash content and the problem of high sulphur content, i.e., can be significantly improved using the system of the present invention in pyrolytic process The quality of pyrolysis product.
According to one embodiment of present invention, the temperature of the first hot blast is not particularly restricted, and those skilled in the art can To be selected according to actual needs, according to a particular embodiment of the invention, the temperature of the first hot blast can be 60~110 DEG C.
According to still a further embodiment, the fluidizing velocity of the first dense media is not particularly restricted, this area skill Art personnel can be selected according to actual needs, according to a particular embodiment of the invention, and the fluidizing velocity of the first dense media can Think 0.8~1.7m/s.Inventor has found, if the fluidizing velocity of the first dense media is too low so that solid dense media therein is not Can fully it fluidize, the dense media axial distributions of solids density of formation is poor, so as to cause separating effect poor, and if the stream of the first dense media Change speed too high, there is local bubbling and bubbles burst etc. so that the fluctuation of dense media bed density is larger, again result in sorting effect Fruit is also poor.Thus, the fluidizing velocity of the first dense media of selection is the dense media bed for the formation that 0.8~1.7m/s can cause Density Density distribution is preferable, so as to improve separating effect.
According to still another embodiment of the invention, the separating density of the first dense media is not particularly restricted, this area skill Art personnel can be selected according to actual needs, according to a particular embodiment of the invention, and the separating density of the first dense media can Think 1.3~1.9g/cm3.Inventor has found that, if the separating density of the first dense media is too low, part cleaned coal is brought into spoil In, cause clean coal recovery to reduce, and if the separating density of the first dense media is too high, part spoil is brought into cleaned coal, equally Cause discharge refuse effect poor.Thus, the separating density of the first dense media of selection is 1.3~1.9g/cm3Cleaned coal and spoil can be realized Efficiently separate.
It should be noted that " the first dense media " herein refers to the gas formed by the first hot blast and the first solid dense media Gu fluidizing agent.
In the step, specifically, the first solid dense media can use magnetite powder, magnetite powder and hot blast are mixed to form Fluidizing agent, lump coal is in the fluidizing agent, and according to Archimedes principle, cleaned coal is realized after layering with spoil according to density variation Separation.
Embodiments in accordance with the present invention, fine coal hot blast dense medium separation device 400 has fine coal entrance 401, the second hot blast Entrance 402, the second solid dense media entrance 403, the second spoil export the outlet 405 of the 404, second cleaned coal and the second offgas outlet 406, fine coal entrance 401 is connected with fine coal outlet 203, and suitable for being carried out using the second hot blast and the second solid dense media to fine coal Sorting and drying process, so as to respectively obtain the second spoil, the second cleaned coal and the second tail gas containing dust.Invention human hair It is existing, screening gained lump coal and fine coal are sorted respectively by using dense media, point of lump coal and fine coal can be significantly improved Precision is selected, so as to improve discharge refuse efficiency, and then energy consumption is pyrolyzed in reduction subsequent process, thus not only realizes and dry and discharge refuse one Body, and can remove by drying process the moisture on lump coal and fine coal surface, thus reduce in assorting room particle it Between bonding probability (especially between cleaned coal and spoil), solve existing combined type discharge refuse technology low to low-order coal rate of discharging refuse The problem of, and solve after pyrolysis semicoke calorific value is low, high ash content and the problem of high sulphur content, i.e., can using the system of the present invention To significantly improve the quality of pyrolysis product in pyrolytic process.
According to one embodiment of present invention, the temperature of the second hot blast is not particularly restricted, and those skilled in the art can To be selected according to actual needs, according to a particular embodiment of the invention, the temperature of the second hot blast can be 60~110 DEG C.
According to still a further embodiment, the fluidizing velocity of the second dense media is not particularly restricted, this area skill Art personnel can be selected according to actual needs, according to a particular embodiment of the invention, and the fluidizing velocity of the second dense media can Think 0.7~1.6m/s.Inventor has found, if the fluidizing velocity of the second dense media is too low so that solid dense media therein is not Can fully it fluidize, the dense media axial distributions of solids density of formation is poor, so as to cause separating effect poor, and if the stream of the second dense media Change speed too high, there is local bubbling and bubbles burst etc. so that the fluctuation of dense media bed density is larger, again result in sorting effect Fruit is also poor.Thus, the fluidizing velocity of the second dense media of selection is the dense media bed for the formation that 0.7~1.6m/s can cause Density Density distribution is preferable, so as to improve separating effect.
According to still another embodiment of the invention, the separating density of the second dense media is not particularly restricted, this area skill Art personnel can be selected according to actual needs, according to a particular embodiment of the invention, and the separating density of the second dense media can Think 1.3~1.9g/cm3.Inventor has found that, if the separating density of the second dense media is too low, part cleaned coal is brought into spoil In, cause clean coal recovery to reduce, and if the separating density of the second dense media is too high, part spoil is brought into cleaned coal, equally Cause discharge refuse effect poor.Thus, the separating density of the second dense media of selection is 1.3~1.9g/cm3Cleaned coal and spoil can be realized Efficiently separate.
It should be noted that " the second dense media " herein refers to the gas formed by the second hot blast and the second solid dense media Gu fluidizing agent.
In the step, specifically, the second solid dense media can use magnetite powder, magnetite powder and hot blast are mixed to form Fluidizing agent, fine coal is in the fluidizing agent, and according to Archimedes principle, cleaned coal is realized after layering with spoil according to density variation Separation.
Embodiments in accordance with the present invention, cleaned coal breaker 500 has cleaned coal entrance 501 and powder outlet 502, and cleaned coal enters Mouth 501 is connected with the second cleaned coal outlet 405, and suitable for the above-mentioned cleaned coal of gained second is carried out into break process, so as to obtain Powder.Thus, by carrying out resulting the second cleaned coal to be broken into the smaller powder of particle diameter, then by the powder through it is follow-up into Pelletizing is made in type processing procedure, so as to significantly improve the utilization rate of cleaned coal raw material, and then reduces cost of material.
Embodiments in accordance with the present invention, the particle diameter of powder is not particularly restricted, and those skilled in the art can be according to reality Border needs to be selected, according to a particular embodiment of the invention, and the particle diameter of powder can be not higher than 3mm.
Embodiments in accordance with the present invention, shaped device 600 has powder entrance 601 and pelletizing outlet 602, powder entrance 601 are connected with powder outlet 502, and suitable for broken gained powder is carried out into forming processes, so as to obtain pelletizing.Thus, The utilization rate of cleaned coal raw material can be significantly improved, so as to further reduce cost of material.
Embodiments in accordance with the present invention, pyrolysis installation 700 has feeding mouth 701, semicoke outlet 702 and pyrolysis oil gas vent 703, feeding mouth 701 is connected with the first cleaned coal outlet 305 and pelletizing outlet 602, and suitable for the first cleaned coal and pelletizing are carried out into heat Solution processing, so as to obtain semicoke and pyrolysis oil gas.Inventor has found, by by lump coal dense medium separation, fine coal dense media Sorting and pyrolytic technique organic integration so that be dried and sorting process before pyrolysis processing is carried out to low-order coal, not only Pyrolysis product quality can be significantly improved, and hydrocarbon yield in pyrolytic process can be significantly improved.
According to one embodiment of present invention, the temperature of pyrolysis processing is not particularly restricted, and those skilled in the art can To be selected according to actual needs, according to a particular embodiment of the invention, the temperature of pyrolysis processing can be 500~700 DEG C.
Embodiments in accordance with the present invention, waste-heat recovery device 800 has semicoke entrance 801, cooling semicoke outlet 802 and heat Gas outlet 803, semicoke entrance 801 and semicoke export 702 and are connected, heat outlet 803 respectively with the first hot-wind inlet 302 and the Two hot-wind inlets 402 are connected, and carry out waste heat recovery processing suitable for the semicoke that is obtained to pyrolytic process, and by a part for hot gas Return and used in lump coal hot blast dense medium separation device as the first hot blast, another part of hot gas is returned into fine coal hot blast dense medium Matter sorting unit is used as the second hot blast.Inventor has found, by by discharge refuse technology and pyrolytic technique organic integration, cleverly The waste heat produced in pyrolytic process is used for discharge refuse process, processing procedure energy cost can be significantly reduced.
In the step, specifically, carrying out waste heat recovery, half to the semicoke obtained in pyrolytic process using waste-heat recovery device Burnt waste heat can obtain hot gas in waste-heat recovery device by conversion, and the temperature for controlling hot gas is 60~110 DEG C, and institute Obtained hot gas is respectively fed to lump coal hot blast dense medium separation device and fine coal hot blast dense media point again after voltage stabilizing bag voltage stabilizing Used in screening device as hot blast.
The system of processing low-order coal according to embodiments of the present invention by by classification and sorting technology with being classified dry technology coupling Close, low-order coal is crushed in advance, is sorted and is dried respectively again after classification processing, the efficiency of separation of raising low-order coal can be with Significantly reduce and load is handled in subsequent process, and significantly reduce the generation of haze in processing procedure, while being distinguished using dense media Screening gained lump coal and fine coal are sorted, the sharpness of separation of lump coal and fine coal can be significantly improved, so as to improve discharge refuse effect Energy consumption is pyrolyzed in rate, and then reduction subsequent process, thus not only realizes and dries and discharge refuse integration, and pass through drying process The moisture on lump coal and fine coal surface can be removed, so as to reduce in assorting room between particle (especially cleaned coal and spoil it Between) bonding probability, solve the problem of existing combined type discharge refuse technology is low to low-order coal rate of discharging refuse, and solve heat Semicoke calorific value after solution is low, high ash content and the problem of high sulphur content, i.e., can significantly improve pyrolytic process using the system of the present invention The quality of middle pyrolysis product, while by the way that processing is dried before pyrolysis processing is carried out to low-order coal, can significantly improve Hydrocarbon yield in pyrolytic process, secondly by by dense medium separation and pyrolytic technique organic integration, cleverly by pyrolytic process The waste heat of generation be used for lump coal dense medium separation and fine coal dense medium separation process, can significantly reduce the processing procedure energy into This, resupplies to pyrolysis after being crushed, be molded successively additionally by the cleaned coal for obtaining fine coal hot blast dense medium separation device Pyrolysis processing is carried out in device, raw material availability can be significantly improved, and then reduce cost of material.
With reference to Fig. 2, the system of processing low-order coal according to embodiments of the present invention further comprises:Cleaned coal screening plant 900.
Embodiments in accordance with the present invention, cleaned coal screening plant 900 is with cleaned coal outlet 902 on the first cleaned coal entrance 901, sieve With the lower cleaned coal outlet 903 of sieve, the first cleaned coal entrance 901 is connected with the first cleaned coal outlet 305, cleaned coal outlet 902 and pan feeding on sieve Mouth 701 is connected, and the lower cleaned coal outlet 903 of sieve is connected with cleaned coal entrance 501, and is suitable to supply into pyrolysis installation by the first cleaned coal Carry out before pyrolysis processing, the first cleaned coal is supplied screening process is carried out into cleaned coal screening plant in advance, so as to obtain Cleaned coal and the lower cleaned coal of sieve on sieve, and the upper cleaned coal of sieve is supplied to pyrolysis installation, the lower cleaned coal of sieve is supplied to cleaned coal breaker.By This, can reduce the generation of haze, so as to save cost of material while the waste of follow-up pyrolytic process cleaned coal is avoided.
According to one embodiment of present invention, the particle diameter of cleaned coal is not particularly restricted on sieve, and those skilled in the art can To be selected according to actual needs, according to a particular embodiment of the invention, the particle diameter of cleaned coal can be not higher than 10mm on sieve, And the particle diameter for sieving lower cleaned coal can be less than 10mm.Thus, screening process is carried out as the cleaned coal to obtained by, by the essence of greater particle size Coal is supplied to follow-up pyrolytic process, and will carry out pyrolysis processing again after follow-up crushing shaping compared with the cleaned coal of small particle, so as to To avoid the waste of cleaned coal in pyrolytic process, and then raw material availability can be improved.
With reference to Fig. 3, the system of processing low-order coal according to embodiments of the present invention further comprises:Dust arrester 1000.
There is embodiments in accordance with the present invention, dust arrester 1000 gas inlet 1001, gas vent 1002 and dust to go out Mouth 1003, gas inlet 1001 is connected with the first offgas outlet 306 and the second offgas outlet 406, dust outlet 1003 and powder Entrance 601 is connected, and suitable for supplying to enter into dust arrester the first tail gas containing dust and the second tail gas containing dust Row dust removal process, to collect dust, and returns to shaped device and powder progress forming processes by dust.Thus, dedusting is passed through Processing, can isolate the dust taken out of in tail gas, so as to avoid the waste of material, and then further reduce cost of material.
As described above, the system of processing low-order coal according to embodiments of the present invention can have the advantages that to be selected from it is following at least it One:
The system of processing low-order coal according to embodiments of the present invention by the way that fine coal and lump coal are respectively adopted into dense medium separation, So that the sharpness of separation and dehydration rate of lump coal and fine coal are all higher, so that the coal impurity for entering pyrolysis oven is few, and then to be somebody's turn to do System has the advantages that energy consumption is low, treating capacity is big, and avoids direct " extensive " present situation of low-order coal (lignite), reduces Environmental pollution.
The system of processing low-order coal according to embodiments of the present invention by raw coal is carried out before pyrolysis dense medium separation with Drying process, can provide the industrial chemicals of high-quality for subsequent job, and part high price high-quality is replaced with cheap low-order coal (lignite) Bituminous coal and anthracite, a kind of effective way is provided for efficient utilize of low-order coal (lignite) resource.
In another aspect of the invention, the present invention proposes a kind of method for handling low-order coal.According to the reality of the present invention Example is applied, this method is carried out using the system of the processing low-order coal of foregoing description.According to a particular embodiment of the invention, (1) The low-order coal is supplied and carries out break process into the low-order coal breaker, to obtain break up coal;(2) will be described broken Broken coal is supplied carries out screening process into the low-order coal screening plant, to obtain lump coal and fine coal;(3) lump coal is supplied The lump coal is divided using the first hot blast and the first solid dense media into the lump coal hot blast dense medium separation device Choosing and drying process, to respectively obtain the first spoil, the first cleaned coal and the first tail gas containing dust;(4) by the fine coal Supply is carried out into the fine coal hot blast dense medium separation device using the second hot blast and the second solid dense media to the fine coal Sorting and drying process, to respectively obtain the second spoil, the second cleaned coal and the second tail gas containing dust;(5) by described Two cleaned coal are supplied carries out break process into the cleaned coal breaker, to obtain powder;(6) powder is supplied to institute State and forming processes are carried out in shaped device, to obtain pelletizing;(7) first cleaned coal and the pelletizing are supplied to the heat Pyrolysis processing is carried out in solution device, to obtain semicoke and pyrolysis oil gas;And the semicoke is supplied to the waste heat and returned by (8) Receiving apparatus carries out waste heat recovery processing, to obtain cooling semicoke and hot gas, and by a part of return to step (3) of the hot gas Used as first hot blast, another part return to step (4) of the hot gas is used as second hot blast.Invention People has found, by the way that classification and sorting technology is coupled with classification dry technology, low-order coal is crushed in advance, classification is distinguished again after handling Sorted and dried, improved the efficiency of separation of low-order coal, can significantly reduce and load is handled in subsequent process, and significantly reduce The generation of haze in processing procedure, while screening gained lump coal and fine coal are sorted respectively using dense media, can be notable The sharpness of separation of lump coal and fine coal is improved, so as to improve discharge refuse efficiency, and then energy consumption is pyrolyzed in reduction subsequent process, thus not only Realize and dry and discharge refuse integration, and the moisture on lump coal and fine coal surface can be removed by drying process, so as to reduce Bonding probability in assorting room between particle (especially between cleaned coal and spoil), solves existing combined type discharge refuse skill The problem of art is low to low-order coal rate of discharging refuse, and solve after pyrolysis semicoke calorific value is low, high ash content and the problem of high sulphur content, i.e., The quality of pyrolysis product in pyrolytic process can be significantly improved using the method for the present invention, while by carrying out heat to low-order coal Solution processing before processing is dried, hydrocarbon yield in pyrolytic process can be significantly improved, secondly by by dense medium separation with Pyrolytic technique organic integration, is cleverly used for lump coal dense medium separation and fine coal dense media point by the waste heat produced in pyrolytic process Process is selected, processing procedure energy cost can be significantly reduced, additionally by the essence for obtaining fine coal hot blast dense medium separation device Coal crushed successively, be molded after resupply into pyrolysis installation and carry out pyrolysis processing, raw material availability can be significantly improved, entered And reduce cost of material.It should be noted that the feature and advantage described by the above-mentioned system for processing low-order coal are equally fitted For the method for the processing low-order coal, here is omitted.
Method below with reference to the processing low-order coal of Fig. 4-6 pairs of embodiment of the present invention is described in detail.According to the present invention Embodiment, this method includes:
S100:Low-order coal is supplied break process is carried out into low-order coal breaker
Embodiments in accordance with the present invention, the low-order coal is supplied into the low-order coal breaker and carries out broken place Reason, so as to obtain break up coal.Thus, it is possible to significantly improve the efficiency of separation of low-order coal in subsequent process.
According to one embodiment of present invention, the particle diameter of break up coal is not particularly restricted, and those skilled in the art can be with Selected according to actual needs, according to a particular embodiment of the invention, the particle diameter of break up coal can be not higher than 80mm.Invention People has found that the break up coal of the particle size range can be substantially better than the discharge refuse efficiency that other particle diameters improve subsequent process.In the step, Specifically, carrying out break process to low-order coal, the break up coal that obtained particle diameter is not higher than 80mm is supplied into subsequent handling, and is obtained To particle diameter continue to come back for crushing higher than 80mm break up coal, until particle diameter is not higher than 80mm.It should be noted that ability Field technique personnel can be selected the low-order coal breaker of use according to actual needs.
S200:Break up coal is supplied screening process is carried out into low-order coal screening plant
Embodiments in accordance with the present invention, above-mentioned gained break up coal is supplied into low-order coal screening plant and carried out at screening Reason, so as to obtain lump coal and fine coal.Thus, before break up coal is carried out into discharge refuse processing, break up coal is divided in advance Level processing, can significantly reduce the processing load in subsequent process, and can avoid the generation of haze in subsequent process.
According to one embodiment of present invention, the particle diameter of lump coal is not particularly restricted, and those skilled in the art can root Selected according to being actually needed, according to a particular embodiment of the invention, the particle diameter of lump coal can be to be not less than 6mm, and fine coal Particle diameter can be less than 6mm.Thus, by carrying out screening process to break up coal, and by larger grain in subsequent processes The lump coal in footpath and fine coal compared with small particle are sorted respectively, can improve low-order coal while subsequent treatment load is reduced Rate of discharging refuse, so as to significantly improve the quality of pyrolysis product.
S300:Lump coal is supplied into lump coal hot blast dense medium separation device using the first hot blast and the first solid dense media Lump coal is sorted and drying process
Embodiments in accordance with the present invention, lump coal obtained by above-mentioned screening step is supplied to lump coal hot blast dense medium separation device It is middle lump coal to be sorted and drying process using the first hot blast and the first solid dense media, so as to respectively obtain the first cash Stone, the first cleaned coal and the first tail gas containing dust.Inventor has found, as that will be carried out using dense media to lump coal obtained by screening Sorting, can significantly improve the sharpness of separation of lump coal, so as to improve discharge refuse efficiency, and then be pyrolyzed energy consumption in reduction subsequent process, And not only realize and dry and discharge refuse integration, and the moisture on lump coal surface can be removed by drying process, so as to drop Bonding probability in low assorting room between particle (especially between cleaned coal and spoil), solves existing combined type discharge refuse The problem of technology is low to low-order coal rate of discharging refuse, and solve after pyrolysis semicoke calorific value is low, high ash content and the problem of high sulphur content, The quality of pyrolysis product in pyrolytic process can be significantly improved using the present invention.
According to one embodiment of present invention, the temperature of the first hot blast is not particularly restricted, and those skilled in the art can To be selected according to actual needs, according to a particular embodiment of the invention, the temperature of the first hot blast can be 60~110 DEG C.
According to still a further embodiment, the fluidizing velocity of the first dense media is not particularly restricted, this area skill Art personnel can be selected according to actual needs, according to a particular embodiment of the invention, and the fluidizing velocity of the first dense media can Think 0.8~1.7m/s.Inventor has found, if the fluidizing velocity of the first dense media is too low so that solid dense media therein is not Can fully it fluidize, the dense media axial distributions of solids density of formation is poor, so as to cause separating effect poor, and if the stream of the first dense media Change speed too high, there is local bubbling and bubbles burst etc. so that the fluctuation of dense media bed density is larger, again result in sorting effect Fruit is also poor.Thus, the fluidizing velocity of the first dense media of selection is the dense media bed for the formation that 0.8~1.7m/s can cause Density Density distribution is preferable, so as to improve separating effect.
According to still another embodiment of the invention, the separating density of the first dense media is not particularly restricted, this area skill Art personnel can be selected according to actual needs, according to a particular embodiment of the invention, and the separating density of the first dense media can Think 1.3~1.9g/cm3.Inventor has found that, if the separating density of the first dense media is too low, part cleaned coal is brought into spoil In, cause clean coal recovery to reduce, and if the separating density of the first dense media is too high, part spoil is brought into cleaned coal, equally Cause discharge refuse effect poor.Thus, the separating density of the first dense media of selection is 1.3~1.9g/cm3Cleaned coal and spoil can be realized Efficiently separate.
It should be noted that " the first dense media " herein refers to the gas formed by the first hot blast and the first solid dense media Gu fluidizing agent.
In the step, specifically, the first solid dense media can use magnetite powder, magnetite powder and hot blast are mixed to form Fluidizing agent, lump coal is in the fluidizing agent, and according to Archimedes principle, cleaned coal is realized after layering with spoil according to density variation Separation.
S400:Fine coal is supplied into fine coal hot blast dense medium separation device using the second hot blast and the second solid dense media Fine coal is sorted and drying process
Embodiments in accordance with the present invention, fine coal is supplied into fine coal hot blast dense medium separation device using the second hot blast and Second solid dense media is sorted and drying process to fine coal, so as to respectively obtain the second spoil, the second cleaned coal and contain There is the second tail gas of dust.Inventor is had found, screening gained lump coal and fine coal are sorted respectively by using dense media, can To significantly improve the sharpness of separation of lump coal and fine coal, so as to improve discharge refuse efficiency, and then energy consumption is pyrolyzed in reduction subsequent process, by This, which is not only realized, dries and discharge refuse integration, and can remove the moisture on lump coal and fine coal surface by drying process, from And the bonding probability in assorting room between particle (especially between cleaned coal and spoil) is reduced, solve existing combined type The problem of discharge refuse technology is low to low-order coal rate of discharging refuse, and solve pyrolysis after semicoke calorific value it is low, ash content is high and sulphur content is high Problem, i.e., can significantly improve the quality of pyrolysis product in pyrolytic process using the system of the present invention.
According to one embodiment of present invention, the temperature of the second hot blast is not particularly restricted, and those skilled in the art can To be selected according to actual needs, according to a particular embodiment of the invention, the temperature of the second hot blast can be 60~110 DEG C.
According to still a further embodiment, the fluidizing velocity of the second dense media is not particularly restricted, this area skill Art personnel can be selected according to actual needs, according to a particular embodiment of the invention, and the fluidizing velocity of the second dense media can Think 0.7~1.6m/s.Inventor has found, if the fluidizing velocity of the second dense media is too low so that solid dense media therein is not Can fully it fluidize, the dense media axial distributions of solids density of formation is poor, so as to cause separating effect poor, and if the stream of the second dense media Change speed too high, there is local bubbling and bubbles burst etc. so that the fluctuation of dense media bed density is larger, again result in sorting effect Fruit is also poor.Thus, the fluidizing velocity of the second dense media of selection is the dense media bed for the formation that 0.7~1.6m/s can cause Density Density distribution is preferable, so as to improve separating effect.
According to still another embodiment of the invention, the separating density of the second dense media is not particularly restricted, this area skill Art personnel can be selected according to actual needs, according to a particular embodiment of the invention, and the separating density of the second dense media can Think 1.3~1.9g/cm3.Inventor has found that, if the separating density of the second dense media is too low, part cleaned coal is brought into spoil In, cause clean coal recovery to reduce, and if the separating density of the second dense media is too high, part spoil is brought into cleaned coal, equally Cause discharge refuse effect poor.Thus, the separating density of the second dense media of selection is 1.3~1.9g/cm3Cleaned coal and spoil can be realized Efficiently separate.
It should be noted that " the second dense media " herein refers to the gas formed by the second hot blast and the second solid dense media Gu fluidizing agent.
In the step, specifically, the second solid dense media can use magnetite powder, magnetite powder and hot blast are mixed to form Fluidizing agent, fine coal is in the fluidizing agent, and according to Archimedes principle, cleaned coal is realized after layering with spoil according to density variation Separation.
S500:Second cleaned coal is supplied break process is carried out into cleaned coal breaker
Embodiments in accordance with the present invention, the above-mentioned cleaned coal of gained second is supplied into cleaned coal breaker and carries out broken place Reason, so as to obtain powder.Thus, by carrying out the second resulting cleaned coal to be broken into the smaller powder of particle diameter, then Pelletizing is made through subsequent forming processing procedure in the powder, so as to significantly improve the utilization rate of cleaned coal raw material, and then is reduced Cost of material.
Embodiments in accordance with the present invention, the particle diameter of powder is not particularly restricted, and those skilled in the art can be according to reality Border needs to be selected, according to a particular embodiment of the invention, and the particle diameter of powder can be not higher than 3mm.
S600:Powder is supplied into shaped device and carries out forming processes
Embodiments in accordance with the present invention, carry out forming processes, so as to obtain pelletizing by broken gained powder.Thus, The utilization rate of cleaned coal raw material can be significantly improved, so as to further reduce cost of material.
S700:First cleaned coal and pelletizing are supplied into pyrolysis installation and carry out pyrolysis processing
Embodiments in accordance with the present invention, pelletizing obtained by the first cleaned coal obtained by S300 and S600 is supplied to enter into pyrolysis installation Row pyrolysis processing, so as to obtain semicoke and pyrolysis oil gas.Inventor has found, by by dense medium separation, fine coal dense media Sorting and pyrolytic technique organic integration so that be dried and sorting process before pyrolysis processing is carried out to low-order coal, not only Pyrolysis product quality can be significantly improved, and hydrocarbon yield in pyrolytic process can be significantly improved.
According to one embodiment of present invention, the temperature of pyrolysis processing is not particularly restricted, and those skilled in the art can To be selected according to actual needs, according to a particular embodiment of the invention, the temperature of pyrolysis processing can be 500~700 DEG C.
S800:Semicoke is supplied to waste-heat recovery device and carries out waste heat recovery processing, and a part for hot gas is returned into step Rapid S300 is used as the first hot blast, and another part return to step S400 of hot gas is used as the second hot blast
Embodiments in accordance with the present invention, semicoke obtained by pyrolytic process is supplied to waste-heat recovery device and carried out at waste heat recovery Reason, so as to obtain cooling semicoke and hot gas, and a part of return to step S300 of hot gas is used as the first hot blast, will Another part return to step S400 of hot gas is used as the second hot blast.Inventor find, by by discharge refuse technology and pyrolysis skill Art organic integration, is cleverly used for discharge refuse process by the waste heat produced in pyrolytic process, can significantly reduce the processing procedure energy Cost.
In the step, specifically, carrying out waste heat recovery, half to the semicoke obtained in pyrolytic process using waste-heat recovery device Burnt waste heat can obtain hot gas in waste-heat recovery device by conversion, and the temperature for controlling hot gas is 90~120 DEG C, and institute Obtained hot gas is respectively fed to lump coal hot blast dense medium separation device and fine coal hot blast dense media point again after voltage stabilizing bag voltage stabilizing Used in screening device as hot blast.
By the way that classification and sorting technology is coupled with classification dry technology, low-order coal is crushed in advance, classification divides again after handling Do not sorted and dried, improved the efficiency of separation of low-order coal, can significantly reduce and load is handled in subsequent process, and significantly drop The generation of haze during reduction process, while being sorted respectively to screening gained lump coal and fine coal using dense media, Ke Yixian The sharpness of separation for improving lump coal and fine coal is write, so as to improve discharge refuse efficiency, and then energy consumption is pyrolyzed in reduction subsequent process, thus not But realize and dry and discharge refuse integration, and the moisture on lump coal and fine coal surface can be removed by drying process, so as to drop Bonding probability in low assorting room between particle (especially between cleaned coal and spoil), solves existing combined type discharge refuse The problem of technology is low to low-order coal rate of discharging refuse, and solve after pyrolysis semicoke calorific value is low, high ash content and the problem of high sulphur content, The quality of pyrolysis product in pyrolytic process can be significantly improved using the method for the present invention, while by being carried out to low-order coal Processing is dried before pyrolysis processing, hydrocarbon yield in pyrolytic process can be significantly improved, secondly by by dense medium separation With pyrolytic technique organic integration, the waste heat produced in pyrolytic process is cleverly used for lump coal dense medium separation and fine coal dense media Assorting room, can significantly reduce processing procedure energy cost, additionally by obtain fine coal hot blast dense medium separation device Cleaned coal crushed successively, be molded after resupply into pyrolysis installation and carry out pyrolysis processing, raw material availability can be significantly improved, And then reduce cost of material.
With reference to Fig. 5, the method for processing low-order coal according to embodiments of the present invention further comprises:
S900:Before the first cleaned coal to be supplied into pyrolysis installation to progress pyrolysis processing, the first cleaned coal is supplied in advance Screening process is carried out into cleaned coal screening plant, and the upper cleaned coal of sieve is supplied to step S700, the lower cleaned coal of sieve is supplied to step S500
Embodiments in accordance with the present invention, before the first cleaned coal to be supplied into pyrolysis installation to progress pyrolysis processing, in advance First cleaned coal is supplied screening process is carried out into cleaned coal screening plant, so as to obtain sieving upper cleaned coal and the lower cleaned coal of sieve, and The upper cleaned coal of sieve is supplied to step S700, the lower cleaned coal of sieve is supplied to step S500.Thus, it is possible to avoid follow-up pyrolytic process The generation of haze is reduced while the waste of cleaned coal, so as to save cost of material.
According to one embodiment of present invention, the particle diameter of cleaned coal is not particularly restricted on sieve, and those skilled in the art can To be selected according to actual needs, according to a particular embodiment of the invention, the particle diameter of cleaned coal can be not higher than 10mm on sieve, And the particle diameter for sieving lower cleaned coal can be less than 10mm.Thus, screening process is carried out as the cleaned coal to obtained by, by the essence of greater particle size Coal is supplied to follow-up pyrolytic process, and will carry out pyrolysis processing again after follow-up crushing shaping compared with the cleaned coal of small particle, so as to To avoid the waste of cleaned coal in pyrolytic process, and then raw material availability can be improved.
With reference to Fig. 6, the method for processing low-order coal according to embodiments of the present invention further comprises:
S1000:The first tail gas containing dust and the second tail gas containing dust are supplied and removed into dust arrester Dirt processing, and by dust return to step S600
Embodiments in accordance with the present invention, the first tail gas containing dust and the second tail gas containing dust are supplied to dedusting Dust removal process is carried out in device, so as to collect dust, and dust return to step S600 and powder are carried out at the shaping Reason.Thus, by dust removal process, the dust taken out of in tail gas can be isolated, so that the waste of material is avoided, and then further Reduce cost of material.
Below with reference to specific embodiment, present invention is described, it is necessary to which explanation, these embodiments are only description Property, without limiting the present invention in any way.
Embodiment
Lignite raw coal is handled using the system of the processing low-order coal shown in Fig. 7, the raw coal treating capacity of the present embodiment For 500,000 tons/year, raw coal moisture as received coal 28.55%, embodiment includes the processing step of following sequence:
1), raw coal enters low-order coal breaker by run coal bin first, and it is 80mm's to be then given to aperture by feeder Sieved on sieve, break up coal of the particle diameter higher than 80mm feeds low-order coal breaker by Belt Conveying and feeder to be continued Break process is carried out, untill granularity is less than 80mm, gained particle diameter is then not higher than 80mm break up coal again by low order Screen separating device (sieve aperture is 6mm), obtains lump coal ((particle diameter is not less than 6mm) and fine coal (particle diameter is less than 6mm);
2) gained lump coal, is fed into lump coal hot blast dense medium separation device by belt, hot blast enters lump coal heat from bottom Wind dense medium separation device, hot blast temperature is 90 DEG C, and dense media fluidizing velocity is 1.15m/s, separating density 1.68g/cm3, cash Stone carries the first tail gas of dust secretly from lump coal hot blast dense medium separation from the discharge refuse mouthful discharge of lump coal hot blast dense medium separation device The outlet of the dust excluding hood of device enters dust arrester, and the first cleaned coal is arranged from the cleaned coal outlet of lump coal hot blast dense medium separation device Go out, and enter cleaned coal screening plant, the upper cleaned coal (particle diameter is not less than 10mm) of sieve and the lower essence of sieve are screened into by sieve classification Coal (particle diameter is less than 10mm) two parts, wherein, cleaned coal enters pyrolysis installation on sieve, and sieves lower cleaned coal and enter cleaned coal breaker quilt It is broken for powder (low particle diameter is 3mm);
3), gained fine coal feeds fine coal hot blast dense medium separation device by belt, and hot blast enters fine coal hot blast from bottom Dense medium separation device, hot blast temperature is 90 DEG C, and dense media fluidizing velocity is 1.03m/s, separating density 1.65g/cm3, entrainment The outlet of second tail gas of dust from the dust excluding hood of fine coal hot blast dense medium separation device enters dust arrester, fine coal hot blast dense medium Powder cleaned coal, powder spoil product are obtained after the sorting of matter sorting unit, powder cleaned coal is crushed into powder (particle diameter into cleaned coal breaker Low is 3mm);
4) dust 2) collected with 3) powder and dust arrester, is fed into mixer together, and added into mixer A certain proportion of binding agent, water and catalyst (or being not added with catalyst) are mixed, and are carried out coal powder formation by mixing, are obtained ball Group;
5), the pelletizing produced by the first cleaned coal 2) produced and 4) feeds pyrolysis installation respectively, passes through 550 DEG C of Low Temperature Thermal The processing such as solution, quenching, oil/gas dedusting, oil/gas cooling and oil/water separation, obtain semicoke, tar and pyrolysis gas;
6), the waste heat for producing pyrolysis installation is reclaimed by waste-heat recovery device row, and lump coal is used as after voltage stabilizing bag voltage stabilizing The drying of hot blast dense medium separation device and fine coal hot blast dense medium separation device and gas fluidizing agent, at the same be dried and Sorting, realizes the high-efficiency comprehensive utilization of the energy.When just starting working lump coal hot blast dense medium separation device is used as with outer hot wind supply Drying and gas fluidizing agent with fine coal hot blast dense medium separation device.
Comparative example
1), lignite raw coal carries out cleaned coal (particle diameter on sieve classification device, sieve by run coal bin by Belt Conveying and feeder It is not less than 10mm) and lower cleaned coal (particle diameter the is less than 10mm) two parts of sieve, wherein, cleaned coal is directly entered pyrolysis installation on sieve, and sieves Lower cleaned coal is crushed into fine coal into breaker (particle diameter is less than 3mm);
2), the powder cleaned coal 1) produced is molded, cleaned coal pelletizing is obtained;
3), cleaned coal and the cleaned coal pelletizing 2) produced feed pyrolysis installation respectively on the sieve that will 1) produce, and pass through 550 DEG C of heat The processing such as solution, quenching, oil/gas dedusting, oil/gas cooling and oil/water separation, obtain semicoke, tar and pyrolysis gas.
The yield results that handling process through embodiment and comparative example is obtained are as shown in table 1.
The embodiment of table 1 and each material yield contrast of comparative example
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means to combine specific features, structure, material or the spy that the embodiment or example are described Point is contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area Art personnel can be tied the not be the same as Example or the feature of example and non-be the same as Example or example described in this specification Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned Embodiment is changed, changed, replacing and modification.

Claims (9)

1. a kind of method that system using processing low-order coal handles low-order coal, it is characterised in that including:
The system of the processing low-order coal, it includes:
Low-order coal breaker, the low-order coal breaker has low-order coal entrance and broken coal export;
Low-order coal screening plant, the low-order coal screening plant has break up coal entrance, lump coal outlet and fine coal outlet;
There is lump coal hot blast dense medium separation device, the lump coal hot blast dense medium separation device lump coal entrance, the first hot blast to enter Mouth, the first solid dense media entrance, the first spoil outlet, the first cleaned coal outlet and the first offgas outlet, the lump coal entrance with The lump coal outlet is connected;
There is fine coal hot blast dense medium separation device, the fine coal hot blast dense medium separation device fine coal entrance, the second hot blast to enter Mouth, the second solid dense media entrance, the second spoil outlet, the second cleaned coal outlet and the second offgas outlet, the fine coal entrance with The fine coal outlet is connected;
Cleaned coal breaker, the cleaned coal breaker has cleaned coal entrance and a powder outlet, the cleaned coal entrance and described the The outlet of two cleaned coal is connected;
Shaped device, the shaped device has powder entrance and pelletizing outlet, the powder entrance and the powder outlet phase Even;
Pyrolysis installation, the pyrolysis installation has feeding mouth, semicoke outlet and pyrolysis oil gas vent, the feeding mouth and described the One cleaned coal is exported to be connected with pelletizing outlet;And
Waste-heat recovery device, the waste-heat recovery device has semicoke entrance, the outlet of cooling semicoke and heat outlet, the semicoke The outlet of entrance and the semicoke is connected, the heat outlet respectively with first hot-wind inlet and the second hot-wind inlet phase Even,
Implemented the steps of using said system:
(1) low-order coal is supplied and carries out break process into the low-order coal breaker, to obtain break up coal;
(2) break up coal is supplied and carries out screening process into the low-order coal screening plant, to obtain lump coal and fine coal;
(3) lump coal is supplied into the lump coal hot blast dense medium separation device using the first hot blast and the first solid dense medium The lump coal of verifying is sorted and drying process, so as to respectively obtain the first spoil, the first cleaned coal and containing dust first Tail gas;
(4) fine coal is supplied into the fine coal hot blast dense medium separation device using the second hot blast and the second solid dense medium The fine coal of verifying is sorted and drying process, so as to respectively obtain the second spoil, the second cleaned coal and containing dust second Tail gas;
(5) second cleaned coal is supplied and carries out break process into the cleaned coal breaker, to obtain powder;
(6) powder is supplied and forming processes is carried out into the shaped device, to obtain pelletizing;
(7) first cleaned coal and the pelletizing are supplied and pyrolysis processing is carried out into the pyrolysis installation, to obtain semicoke With pyrolysis oil gas;And
(8) semicoke is supplied to the waste-heat recovery device and carries out waste heat recovery processing, to obtain cooling semicoke and heat Gas, and a part of return to step (3) of the hot gas is used as first hot blast, another part of the hot gas is returned Step (4) is returned to use as second hot blast.
2. according to the method described in claim 1, it is characterised in that the system further comprises:
Cleaned coal screening plant, the cleaned coal screening plant is exported with cleaned coal outlet on the first cleaned coal entrance, sieve and the lower cleaned coal of sieve, The first cleaned coal entrance is connected with first cleaned coal outlet, and cleaned coal outlet is connected with the feeding mouth on the sieve, described The lower cleaned coal outlet of sieve is connected with the cleaned coal entrance.
3. method according to claim 1 or 2, it is characterised in that the system further comprises:
Dust arrester, the dust arrester has gas inlet, gas vent and a dust outlet, the gas inlet and described the One offgas outlet is connected with second offgas outlet, and the dust outlet is connected with the powder entrance.
4. method according to claim 2, it is characterised in that further comprise:
(9) before first cleaned coal to be supplied into the pyrolysis installation to progress pyrolysis processing, in advance by the described first essence Coal is supplied carries out screening process into the cleaned coal screening plant, to obtain sieving upper cleaned coal and the lower cleaned coal of sieve, and by the sieve Upper cleaned coal is supplied to the pyrolysis installation, and cleaned coal under the sieve is supplied to the cleaned coal breaker.
5. method according to claim 3, it is characterised in that further comprise:
(10) first tail gas containing dust and second tail gas containing dust are supplied into the dust arrester Dust removal process is carried out, to collect dust, and the dust return to step (6) and the powder forming processes are subjected to.
6. according to the method described in claim 1, it is characterised in that in step (1), the particle diameter of the break up coal is not higher than 80mm。
7. according to the method described in claim 1, it is characterised in that in step (3), the temperature of first hot blast be 60~ 110 degrees Celsius, the first dense media fluidizing velocity is 0.8~1.7m/s, and separating density is 1.3~1.9g/cm3,
Or, in step (4), the temperature of second hot blast is 60~110 degrees Celsius, and the second dense media fluidizing velocity is 0.7 ~1.6m/s, separating density is 1.3~1.9g/cm3
8. according to the method described in claim 1, it is characterised in that in step (2), the particle diameter of the lump coal is not less than 6mm,
Or, in step (9), the particle diameter of cleaned coal is not less than 10mm on the sieve.
9. according to the method described in claim 1, it is characterised in that in step (5), the particle diameter of the powder is not higher than 3mm.
CN201610053772.0A 2016-01-27 2016-01-27 The system and method for handling low-order coal Active CN105537120B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610053772.0A CN105537120B (en) 2016-01-27 2016-01-27 The system and method for handling low-order coal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610053772.0A CN105537120B (en) 2016-01-27 2016-01-27 The system and method for handling low-order coal

Publications (2)

Publication Number Publication Date
CN105537120A CN105537120A (en) 2016-05-04
CN105537120B true CN105537120B (en) 2017-11-03

Family

ID=55816952

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610053772.0A Active CN105537120B (en) 2016-01-27 2016-01-27 The system and method for handling low-order coal

Country Status (1)

Country Link
CN (1) CN105537120B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110358556A (en) * 2019-07-25 2019-10-22 内蒙古万众炜业科技环保股份公司 A kind of raw coal cracking energy comprehensive utilization system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101482005A (en) * 2009-02-02 2009-07-15 河南理工大学 Down-hole gross coal dirt-discharging and mine water treating combined process
CN102211087A (en) * 2011-05-23 2011-10-12 中矿绿能(北京)工程技术有限公司 Air and heavy medium dry coal preparation process
CN102433187A (en) * 2011-10-20 2012-05-02 中国重型机械研究院有限公司 Method for quality improvement and formation for lignite
CN103421525A (en) * 2012-12-03 2013-12-04 山东天力干燥股份有限公司 Method and system for improving quality of low-rank coal
CN105240845A (en) * 2015-11-16 2016-01-13 北京神雾环境能源科技集团股份有限公司 Classification and comprehensive utilization method and system for brown coal
CN205518634U (en) * 2016-01-27 2016-08-31 北京神雾环境能源科技集团股份有限公司 System for handle low order coal

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07241527A (en) * 1994-03-03 1995-09-19 Yamamoto Mfg Co Ltd Apparatus for screening amaranthus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101482005A (en) * 2009-02-02 2009-07-15 河南理工大学 Down-hole gross coal dirt-discharging and mine water treating combined process
CN102211087A (en) * 2011-05-23 2011-10-12 中矿绿能(北京)工程技术有限公司 Air and heavy medium dry coal preparation process
CN102433187A (en) * 2011-10-20 2012-05-02 中国重型机械研究院有限公司 Method for quality improvement and formation for lignite
CN103421525A (en) * 2012-12-03 2013-12-04 山东天力干燥股份有限公司 Method and system for improving quality of low-rank coal
CN105240845A (en) * 2015-11-16 2016-01-13 北京神雾环境能源科技集团股份有限公司 Classification and comprehensive utilization method and system for brown coal
CN205518634U (en) * 2016-01-27 2016-08-31 北京神雾环境能源科技集团股份有限公司 System for handle low order coal

Also Published As

Publication number Publication date
CN105537120A (en) 2016-05-04

Similar Documents

Publication Publication Date Title
CN101440323B (en) Drying and moulding integrated process for low rank coal
CN101705132B (en) Drying and dry separation combination device as well as dry separation and drying combination device
CN105537121B (en) The system and method for handling low-order coal
CN101983942B (en) Drying and quality improvement apparatus for slime and sludge and technology thereof
CN102489391A (en) High-sulfur power raw coal sorting process
CN105537120B (en) The system and method for handling low-order coal
CN205496053U (en) System for handle low order coal
CN205518634U (en) System for handle low order coal
CN102292419A (en) Methods and systems for treating a gasification slag product
CN205424971U (en) System for handle low order coal
CN205537054U (en) System for handle low order coal
CN206580779U (en) The system for handling lignite
CN205501221U (en) System for handle low order coal
CN212916098U (en) Dry and wet dual-purpose grading and sorting treatment system
CN205501222U (en) System for handle low order coal
CN206545000U (en) The system for handling lignite
CN205463195U (en) System for handle low order coal
CN106810036A (en) A kind of coal slime, drying sludge device for improving quality and technique
CN105670699A (en) System and method for treating low-rank coal
CN205635507U (en) System for handle low order coal
CN206266495U (en) The system for processing lignite
CN206545001U (en) The system for handling lignite
CN105567337B (en) The system and method for handling low-order coal
US4263100A (en) Method and apparatus for reducing fine dust emission while charging predried and preheated coal into coke ovens
CN205537053U (en) System for handle low order coal

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
CB02 Change of applicant information
CB02 Change of applicant information

Address after: 102200 Beijing city Changping District Machi Town cow Road No. 18

Applicant after: Shenwu Technology Group Co.,Ltd.

Address before: 102200 Beijing city Changping District Machi Town cow Road No. 18

Applicant before: BEIJING SHENWU ENVIRONMENT AND ENERGY TECHNOLOGY Co.,Ltd.

GR01 Patent grant
GR01 Patent grant
PP01 Preservation of patent right
PP01 Preservation of patent right

Effective date of registration: 20190121

Granted publication date: 20171103

PD01 Discharge of preservation of patent

Date of cancellation: 20220921

Granted publication date: 20171103

PP01 Preservation of patent right

Effective date of registration: 20220921

Granted publication date: 20171103