CN107841363B - The equipment of microbial desulfurization of coal technique for high-sulfur coal desulfurization - Google Patents
The equipment of microbial desulfurization of coal technique for high-sulfur coal desulfurization Download PDFInfo
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- CN107841363B CN107841363B CN201711148734.4A CN201711148734A CN107841363B CN 107841363 B CN107841363 B CN 107841363B CN 201711148734 A CN201711148734 A CN 201711148734A CN 107841363 B CN107841363 B CN 107841363B
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L9/00—Treating solid fuels to improve their combustion
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Abstract
The present invention relates to technical field of coal processing, specifically, being related to a kind of equipment of microbial desulfurization of coal technique for high-sulfur coal desulfurization.It includes crushing pickler, and crushing pickler includes apparatus body, and apparatus body includes horizontal installation shell, and installation enclosure interior is equipped with the installation cavity of both ends open in the horizontal direction；It is equipped with one in installation cavity and crushes roller screen, crushes the sieve nest that roller screen includes tubular；It installs and is equipped with a discharge of fine material mouth below shell, installation shell, which corresponds to, installs a pickler at the lateral wall of discharge of fine material mouth；Pickler includes pickler main body, and pickler body interior is equipped with the pickling chamber of a both ends open vertically, and discharge of fine material mouth is connected to installation cavity and pickling chamber.The present invention is easy to implement and easy to operate.
Description
Technical field
The present invention relates to technical field of coal processing, specifically, being related to a kind of micro- life of the coal for high-sulfur coal desulfurization
The equipment of object sulfur removal technology.
Background technique
Coal is that one of most important energy and China account for 70% or more in production of energy, the structure of consumer demand in the world
Main energy sources.It is increasingly tight to the monitoring of atmosphere quality with the foundation of Air Pollution Prevention Law rule, rule and standard system
Lattice, the environmental consciousness of people also increasingly enhance.National Environmental Protection Agency in 1998 can delimit acid rain and SO2 pollution with relevant department
The controlling planning of the key industrys such as coal in dicontrolled area, electric power SO2 pollution has been formulated in control zone；As a result, mining listed corporations and
Coal processing and utilization industry all reduces the sulfur content of coal by fair means or foul, with pollution abatement.Take sustainable development road in China
Line develops efficient, inexpensive Desulphurization Technology for Coal, will be with far-reaching economic significance and environment protection significance.
The desulfurization technology of coal is generally divided into desulfurization before coal combustion, in burning three kinds of desulfurization after desulfurization and burning.Before combustion
Desulfurization technology mainly includes reducing sulphur content, ash content by the Coal Blending Technology of supplying low-sulfur coal in sulphur coal and by washing to drop
Technology is selected as in the discharge of low SO2.Desulfurization technology refers mainly to penetrating calcium system in the shaped coal technology and furnace of addition sulphur-fixing agent in burning
The pulverized coal friring technology of desulfurizing agent, this kind of method can desulfurization 50%~60%, but it is inefficient, have easy slagging, abrasion and blocking
Problem.Desulfurization technology is also known as flue gas desulfurization technique after burning, and the comparison of developed country's research is more, and efficiency is higher, but cost also compares
It is higher.The desulfurization before combustion of coal, the sulfur content that coal is reduced especially by coal separation have very important significance.Coal separation is clean
The source technology of coal technology, can desulfurization but also deliming, while utilization efficiency of heat energy can also be improved, and the expense of coal separation is again
Well below desulfurization after desulfurization in burning and burning.
The desulfurization before combustion of coal divides physical method, chemical method and 3 kinds of bioanalysis again.Physical method desulfurization be according to coal particles with contain
Specific gravity, magnetism, electric conductivity and its suspension of sulphur compound and develop removal coal in inorganic sulfur method, its advantage is that process
It is fairly simple, there is large-scale production application.The disadvantage is that organic sulfur in coal cannot be removed simultaneously, and the crystal of inorganic sulfur
Structure, size and distribution influence desulfurization effect and coal recovery rate.The principle of chemical method either passes through oxidant and sulphur is aoxidized,
Either sulphur is replaced and achievees the purpose that desulfurization.Its biggest advantage is to remove most of inorganic sulfur (not by the crystal of sulphur
Structure, size and the influence of distribution) and substantial portion of organic sulfur.The disadvantage is that must high temperature, high pressure and dripped using corrosivity
Filtering agent, therefore energy consumption is high for process, the device is complicated, up to the present, cannot put into practical application because economic cost is too high.Bioanalysis
Principle be using microorganism can selectively aoxidize organic or inorganic sulphur the characteristics of, remove coal in element sulphur.It
Advantage is can to remove organic sulfur in coal but also remove inorganic sulfur, and reaction condition is mild, and equipment is simple, at low cost.Often at present
Using lixiviation process and surface oxidation method, and the hot spot of the current research and development of coal desulfurization both at home and abroad.
The history of microbe ore dressing can be traced in the research of microbial desulfurization of coal.Nineteen forty-seven, Colmer and
Hinkle has found and confirms that chemosynthetic bacteria Thiobacillus ferrooxidans can promote to aoxidize and dissolve in coal
Existing pyrite, this is considered as the beginning of Biohydrometallurgy research.From now on, researcher is to Biohydrometallurgy
Theory and the extensive research of application start.The bioleaching copper of the U.S. in 1958 and Canada's bioleaching uranium in 1966
Research and industrial application success after, there is more than 20 a scholar for country carry out the research of microorganism ore dressing, and periodically carry out
Hydrometallurgy science seminar, at the same time, scholars have also started the research of microbial desulfurization of coal application.
Using microorganism to coal desulfurization, mainly sulfide is decomposed side by side using the oxidation of microorganism
Out.In the prior art, although have been relatively mature using the technique that microorganism carries out desulfurization process to coal, because of existing skill
Lack preferable special equipment in art, and causes existing coal desulfurization technique cost of implementation larger and complicated for operation.
Summary of the invention
The equipment that the contents of the present invention are to provide a kind of microbial desulfurization of coal technique for high-sulfur coal desulfurization, can
Overcome certain or certain defects of the prior art.
The equipment of microbial desulfurization of coal technique according to the present invention for high-sulfur coal desulfurization comprising crush pickling and set
Standby, crushing pickler includes apparatus body, and apparatus body includes horizontal installation shell, and installation enclosure interior is in the horizontal direction
Installation cavity equipped with both ends open；It is equipped with one in installation cavity and crushes roller screen, crushes the sieve nest that roller screen includes tubular；Sieve nest entirety structure
Octagon is caused, sieve nest includes 8 load-bearing pillars axially extended, and load-bearing pillar is uniformly distributed in the circumferential, and arbitrary neighborhood is held
Weight intercolumniation is respectively connected with sieve plate, and the sieve pore that multiple apertures are 10mm is equipped at sieve plate；A baffle is all connected on the inside of any load-bearing pillar
Item, apron strip is tilted to the front side of sieve nest rotation direction and tilt angle is 40 °；Sieve nest left end is equipped with the first sieve nest installing ring,
Sieve nest right end is equipped with the second sieve nest installing ring；First sieve nest installs ring outer wall and installation cavity left end inner wall rolls and cooperates, the second sieve
Body installs ring outer wall and installation cavity right end inner wall rolls and cooperates；Shell right end is installed and is equipped with a feed hopper, is equipped with inside feed hopper
It is connected to the feeding-passage crushed inside roller screen；First sieve nest installing ring stretches out installation cavity and cooperates with a transmission mechanism, first
A sieve nest cover board is equipped at sieve nest installing ring；It installs and is equipped with a discharge of fine material mouth below shell, installation shell corresponds to discharge of fine material
One pickler is installed at the lateral wall of mouth；Pickler includes pickler main body, and pickler body interior is equipped with vertically
The pickling chamber of one both ends open, discharge of fine material mouth are connected to installation cavity and pickling chamber.
Raw coal can be added from feed hopper, and the raw coal being added later can enter inside sieve nest from feeding-passage, later
Under the drive of transmission mechanism, crushes roller screen and be able to carry out rolling to crush to raw coal；Smashed raw coal powder can
It is fallen into pickling chamber through discharge of fine material mouth, acid preferably can be carried out to raw coal powder by being passed through conventional acid in pickling chamber
It washes；Coal dust after pickling can be dropped out preferably from pickling chamber lower openings, and then carry out the processing of next step.Pass through above-mentioned structure
It makes, the crushing of step 1 and the pickling of step 2 is on the one hand enabled to carry out in same equipment, consequently facilitating production and behaviour
Make simple；On the other hand, due to pickling be carried out in raw coal powder dropping process so that acid can more fully with original
Coal dust is contacted, so as to preferably promote pickling effect.
Preferably, the intracavitary portion of pickling is equipped with a spray equipment.Spray equipment preferably can carry out sour spray to raw coal powder
Leaching, so as to preferably promote pickling effect.
Preferably, spray equipment includes a newel being vertically arranged, newel upper end is equipped with horizontally disposed upper branch
Strut, newel lower end are equipped with horizontally disposed lower support bar；It is coaxially equipped between upper support bar and lower support bar with newel
Multiple ring spargers；The first spray channels are equipped with inside newel, newel side-walls are equipped with multiple first spray apertures；In ring sparger
Portion is equipped with the second spray channels, and ring sparger medial surface is equipped with multiple second spray apertures；Lower support bar is axially inside equipped with feed flow
Channel, the first spray channels and the second spray channels are connected to liquid feeding channel；A spray dress is equipped at pickling chamber lower end inner wall
Positioning ring is set, spray equipment positioning ring upper surface corresponds to and is equipped with lower support bar locating slot at the both ends of lower support bar, lower support
Boom end is sealed with corresponding support rod locating slot to be cooperated；The side-walls that pickling chamber corresponds to any support rod locating slot were equipped with
Liquid channel.The spacing of adjacent ring sparger is 15mm, and the outer wall of outermost ring sparger is bonded with pickling chamber, inner wall protrudes from spray dress
Set positioning ring.
In the present invention, acid solution can enter liquid feeding channel from liquid channel is crossed, and enter back into the first spray channels and second later
Spray channels, to finally be sprayed from the first spray apertures and the second spray apertures, by such structure, enable acid solution more
It is fully contacted with raw coal powder, so as to preferably promote pickling effect.
Preferably, being equipped with the feeding device of an annular on the outside of pickler lower body, a ring is equipped in feeding device
The feed liquor cushion chamber of shape, any liquid channel of crossing are connected to feed liquor cushion chamber, and inlet is additionally provided at feeding device.This makes,
Acid solution can enter liquid channel by feed liquor cushion chamber, consequently facilitating the supply of acid solution.
Preferably, pickler lower body part is equipped with a discharge bucket.Consequently facilitating after pickling coal dust blanking.
Preferably, being equipped with mounting bracket below installation shell.Consequently facilitating the installation of installation shell is fixed.
Detailed description of the invention
Fig. 1 is process flow signal of one of the embodiment 1 for the microbial desulfurization of coal technique of high-sulfur coal desulfurization
Figure；
Fig. 2 is the schematic diagram of the crushing pickler in embodiment 1；
Fig. 3 is the schematic diagram of the pickler in embodiment 1；
Fig. 4 is the schematic diagram of the pickler main body in embodiment 1；
Fig. 5 is the half-section diagram of the pickler main body in embodiment 1；
Fig. 6 is the schematic diagram of the spray equipment in embodiment 1；
Fig. 7 is the schematic cross-section in the embodiment 1 in embodiment 1.
Specific embodiment
To further appreciate that the contents of the present invention, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.It should be understood that
, embodiment be only to the present invention explain and and it is non-limiting.
Embodiment 1
As shown in connection with fig. 1, a kind of microbial desulfurization of coal technique for high-sulfur coal desulfurization is present embodiments provided, is wrapped
Include following steps:
Raw coal is crushed to granularity no more than 10mm by step 1；
Step 2 carries out pickling to through step 1 treated raw coal, controls pH value between 1.5 ~ 2.0；
Step 3, using microorganism to treated that product is handled through step 2；
Step 4 separates leachate, to obtain desulfurized coal.
In the present embodiment, acid employed in step 2 uses existing acid, uses conventional coal desulfurization in step 3
Microorganism carries out conventional treatment.
The step of the present embodiment one and step 2 carry out in a crushing pickler, compared with the prior art in use 2
A equipment crush to raw coal and be compared with the mode of pickling, the crushing pickler in the present embodiment can successively to raw coal into
Row crushes and pickling, to be saved greatly process costs, and then is easy to implement, and easy to operate.
As shown in connection with fig. 2, crushing pickler includes apparatus body 100, and apparatus body 100 includes horizontal installation shell
110, the installation cavity 111 for being equipped with both ends open inside shell 110 in the horizontal direction is installed；It is equipped with one in installation cavity 111 and crushes rolling
Sieve 120 crushes the sieve nest 121 that roller screen 120 includes tubular, and 121 left end of sieve nest is equipped with the first sieve nest installing ring 122, and sieve nest 121 is right
End is equipped with the second sieve nest installing ring 123；First sieve nest installing ring, 122 outer wall and 111 left end inner wall of installation cavity, which roll, to be cooperated, and second
123 outer wall of sieve nest installing ring and 111 right end inner wall of installation cavity, which roll, to be cooperated；110 right end of shell is installed and is equipped with a feed hopper 130,
The feeding-passage 131 for being connected to and crushing inside roller screen 120 is equipped with inside feed hopper 130；First sieve nest installing ring 122 stretches out installation
Chamber 111 simultaneously cooperates with a transmission mechanism 140, and a sieve nest cover board 160 is equipped at the first sieve nest installing ring 122；It installs under shell 110
Side is equipped with a discharge of fine material mouth 112, installs a pickler at the lateral wall of the corresponding discharge of fine material mouth 112 of installation shell 110
150；Pickler 150 includes pickler main body 151, and 151 inner vertical of pickler main body is equipped with the acid of a both ends open
Chamber 151a is washed, discharge of fine material mouth 112 is connected to installation cavity 111 and pickling chamber 151a.
In the present embodiment, raw coal can be added from feed hopper 130, and the raw coal being added later can be from feeding-passage 131
Into inside sieve nest 121, later under the drive of transmission mechanism 140, crush roller screen 120 be able to carry out rolling to raw coal into
Row crushes；Smashed raw coal powder can be fallen into pickling chamber 151a through discharge of fine material mouth 112, by being passed through in pickling chamber often
The acid of rule preferably can carry out pickling to raw coal powder；Coal dust after pickling can preferably be fallen from pickling chamber 151a lower openings
Out, so carry out next step processing.By above-mentioned construction, on the one hand enable the crushing of step 1 and the pickling of step 2
Carried out in same equipment, consequently facilitating production and it is easy to operate；On the other hand, since pickling is in raw coal powder dropping process
It carries out, so that acid more can be contacted fully with raw coal powder, so as to preferably promote pickling effect.
In the present embodiment, the lower end of feeding-passage 131 is capable of forming for protruding into the feed hopper extension inside sieve nest 121
132, so that raw coal can preferably be fallen into inside sieve nest 121.
In the present embodiment, sieve nest cover board 160 can be detachably arranged at the first sieve nest installing ring 122, so that making
User can be preferably to regularly being cleaned inside sieve nest 121.
In the present embodiment, a spray equipment 152 is equipped with inside pickling chamber 151a.Spray equipment 152 can be preferably to original
Coal dust carries out sour spray, so as to preferably promote pickling effect.
In conjunction with shown in Fig. 3 ~ 6, spray equipment 152 includes a newel 210 being vertically arranged, and 210 upper end of newel is equipped with
Horizontally disposed upper support bar 220,210 lower end of newel are equipped with horizontally disposed lower support bar 230；Upper support bar 220 is under
Multiple ring spargers 240 are coaxially equipped with newel 210 between support rod 230；The first spray channels are equipped with inside newel 210
211,210 side-walls of newel are equipped with multiple first spray apertures；The second spray channels 241, ring sparger are equipped with inside ring sparger 240
240 medial surfaces are equipped with multiple second spray apertures；Lower support bar 230 is axially inside equipped with liquid feeding channel 231, the first spray channels
211 and second spray channels 241 be connected to liquid feeding channel 231；It is fixed that a spray equipment is equipped at pickling chamber 151a lower end inner wall
Position ring 250,250 upper surface of spray equipment positioning ring correspond to and are equipped with lower support bar locating slot at the both ends of lower support bar 230
310,230 end of lower support bar is sealed with corresponding support rod locating slot 310 to be cooperated；It is fixed that pickling chamber 151a corresponds to any support rod
The side-walls of position slot 310 were equipped with liquid channel 151b.
In the present embodiment, acid solution can enter liquid feeding channel 231 from liquid channel 151b is crossed, and it is logical to enter back into the first spray later
Road 211 and the second spray channels 241, by such structure, make to finally spray from the first spray apertures and the second spray apertures
Obtaining acid solution can more fully be contacted with raw coal powder, so as to preferably promote pickling effect.
In the present embodiment, upper support bar 220 and lower support bar 230 include mutually orthogonal two, and ring sparger 240 includes
It is multiple, and the spacing of adjacent ring sparger 240 is 15mm.In addition, the outer wall of outermost ring sparger 240 be bonded with pickling chamber 151a,
Inner wall protrudes from spray equipment positioning ring 250, so as to preferably facilitate passing through for coal dust.
In the present embodiment, 151 lower end outside of pickler main body is equipped with the feeding device 260 of an annular, feeding device 260
It is inside equipped with the feed liquor cushion chamber 261 of an annular, any liquid channel 151b that crosses is connected to feed liquor cushion chamber 261, feeding device 260
Place is additionally provided with inlet 262.This makes, and acid solution can enter liquid channel 151b by feed liquor cushion chamber 261, consequently facilitating sour
The supply of liquid.
In the present embodiment, 151 lower part of pickler main body is equipped with a discharge bucket 153.Consequently facilitating coal dust is fallen after pickling
Material.
In the present embodiment, installs and be equipped with mounting bracket 170 below shell 110.Consequently facilitating the installation of installation shell 110 is solid
It is fixed.
As shown in connection with fig. 7, the integrally constructed octagon of sieve nest 121, sieve nest 121 include 8 load-bearing axially extended
Column 710, load-bearing pillar 710 are uniformly distributed in the circumferential, are respectively connected with sieve plate 720 between arbitrary neighborhood load-bearing pillar 710, at sieve plate 720
The sieve pore for being 10mm equipped with multiple apertures, is all connected with an apron strip 730 on the inside of any load-bearing pillar 710, and apron strip 730 is to sieve nest
The front side of 121 rotation directions tilts and tilt angle is 40 °.It is constructed by this kind, enables the raw coal in sieve nest 121 continuous
Ground by apron strip 730 with falling to after being higher by, so as to preferably be crushed to raw coal.
Schematically the present invention and embodiments thereof are described above, description is not limiting, institute in attached drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited to this.So if the common skill of this field
Art personnel are enlightened by it, without departing from the spirit of the invention, are not inventively designed and the technical solution
Similar frame mode and embodiment, are within the scope of protection of the invention.
Claims (3)
1. the equipment of the microbial desulfurization of coal technique for high-sulfur coal desulfurization, it is characterised in that:
Including crushing pickler, crushing pickler includes apparatus body (100), and apparatus body (100) includes horizontal peace
It fills shell (110), the internal installation cavity (111) for being equipped with both ends open in the horizontal direction of installation shell (110)；Installation cavity (111)
It is inside equipped with a crushing roller screen (120), crushes the sieve nest (121) that roller screen (120) include tubular, sieve nest (121) is integrally constructed just
Octagon, sieve nest (121) include 8 load-bearing pillars axially extended (710), and load-bearing pillar (710) is uniformly distributed in the circumferential, are appointed
It anticipates and is respectively connected with sieve plate (720) between adjacent load-bearing pillar (710), the sieve pore that multiple apertures are 10mm is equipped at sieve plate (720)；It is any
Be all connected with an apron strip (730) on the inside of load-bearing pillar (710), apron strip (730) tilted to the front side of sieve nest (121) rotation direction and
Tilt angle is 40 °；Sieve nest (121) left end is equipped with the first sieve nest installing ring (122), and sieve nest (121) right end is equipped with the second sieve nest
Installing ring (123)；First sieve nest installing ring (122) outer wall and installation cavity (111) left end inner wall, which roll, to be cooperated, the installation of the second sieve nest
It encloses (123) outer wall and installation cavity (111) right end inner wall rolls and cooperates；Shell (110) right end is installed and is equipped with a feed hopper (130),
It is equipped with to be connected to inside feed hopper (130) and crushes roller screen (120) internal feeding-passage (131)；First sieve nest installing ring (122)
It stretches out installation cavity (111) and cooperates with a transmission mechanism (140), a sieve nest cover board is equipped at the first sieve nest installing ring (122)
(160)；It installs and is equipped with a discharge of fine material mouth (112) below shell (110), installation shell (110) is corresponding discharge of fine material mouth (112)
Lateral wall at install a pickler (150)；Pickler (150) includes pickler main body (151), pickler main body
(151) inner vertical is equipped with the pickling chamber (151a) of a both ends open, and discharge of fine material mouth (112) is connected to installation cavity (111) and acid
Wash chamber (151a)；A spray equipment (152) are equipped with inside pickling chamber (151a), spray equipment (152) includes one being vertically arranged
Newel (210), newel (210) upper end are equipped with horizontally disposed upper support bar (220), and newel (210) lower end is equipped with water
The lower support bar (230) of flat setting；With newel (210) coaxially equipped with more between upper support bar (220) and lower support bar (230)
A ring sparger (240)；The first spray channels (211) are equipped with inside newel (210), newel (210) side-walls are equipped with multiple
First spray apertures；The second spray channels (241) are equipped with inside ring sparger (240), ring sparger (240) medial surface is equipped with multiple second
Spray apertures；Lower support bar (230) is axially inside equipped with liquid feeding channel (231), and the first spray channels (211) and the second spray are logical
Road (241) is connected to liquid feeding channel (231)；A spray equipment positioning ring (250) is equipped at pickling chamber (151a) lower end inner wall,
Spray equipment positioning ring (250) upper surface corresponds to and is equipped with lower support bar locating slot (310) at the both ends of lower support bar (230),
Lower support bar (230) end is sealed with corresponding support rod locating slot (310) to be cooperated；The spacing of adjacent ring sparger (240) is
15mm, the outer wall of outermost ring sparger (240) is bonded with pickling chamber (151a), inner wall protrudes from spray equipment positioning ring (250)；
The side-walls of the corresponding any support rod locating slot (310) of pickling chamber (151a) were equipped with liquid channel (151b)；Pickler master
Body (151) lower end outside is equipped with the feeding device (260) of an annular, and the feed liquor buffering of an annular is equipped in feeding device (260)
Chamber (261), any cross liquid channel (151b) are connected to feed liquor cushion chamber (261), and feeding device is additionally provided with inlet at (260)
(262).
2. equipment according to claim 1, it is characterised in that: pickler main body (151) lower part is equipped with a discharge bucket
(153).
3. equipment according to claim 1, it is characterised in that: be equipped with mounting bracket (170) below installation shell (110).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711148734.4A CN107841363B (en) | 2017-11-17 | 2017-11-17 | The equipment of microbial desulfurization of coal technique for high-sulfur coal desulfurization |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711148734.4A CN107841363B (en) | 2017-11-17 | 2017-11-17 | The equipment of microbial desulfurization of coal technique for high-sulfur coal desulfurization |
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| Publication Number | Publication Date |
|---|---|
| CN107841363A CN107841363A (en) | 2018-03-27 |
| CN107841363B true CN107841363B (en) | 2019-11-01 |
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| GB2003749B (en) * | 1977-09-08 | 1982-03-31 | Foster Wheeler Energy Corp | Rotating screen separator |
| CN2274289Y (en) * | 1996-03-25 | 1998-02-11 | 马鞍山钢铁股份有限公司 | Circular-spray water-seal dust removing device for cleaning dust of furnace gravity dust-collector |
| CN101285017A (en) * | 2008-06-03 | 2008-10-15 | 桂林工学院 | Process for removing sulphur in coal by using white-rot fungi |
| CN202146968U (en) * | 2011-06-29 | 2012-02-22 | 漯河市汇达铸造机械有限公司 | Shower barrel cooling crushing screen machine |
| CN203955504U (en) * | 2014-06-17 | 2014-11-26 | 泰山石膏股份有限公司 | The coal-fired classifying screen of fluid bed furnace |
| CN104745497A (en) * | 2013-12-30 | 2015-07-01 | 北京有色金属研究总院 | Process for using specific desulphurization mixed bacterium for high sulfur coal mine biological desulfurization |
-
2017
- 2017-11-17 CN CN201711148734.4A patent/CN107841363B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2003749B (en) * | 1977-09-08 | 1982-03-31 | Foster Wheeler Energy Corp | Rotating screen separator |
| CN2274289Y (en) * | 1996-03-25 | 1998-02-11 | 马鞍山钢铁股份有限公司 | Circular-spray water-seal dust removing device for cleaning dust of furnace gravity dust-collector |
| CN101285017A (en) * | 2008-06-03 | 2008-10-15 | 桂林工学院 | Process for removing sulphur in coal by using white-rot fungi |
| CN202146968U (en) * | 2011-06-29 | 2012-02-22 | 漯河市汇达铸造机械有限公司 | Shower barrel cooling crushing screen machine |
| CN104745497A (en) * | 2013-12-30 | 2015-07-01 | 北京有色金属研究总院 | Process for using specific desulphurization mixed bacterium for high sulfur coal mine biological desulfurization |
| CN203955504U (en) * | 2014-06-17 | 2014-11-26 | 泰山石膏股份有限公司 | The coal-fired classifying screen of fluid bed furnace |
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| Publication number | Publication date |
|---|---|
| CN107841363A (en) | 2018-03-27 |
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