CN104774626A - Material cooling device - Google Patents
Material cooling device Download PDFInfo
- Publication number
- CN104774626A CN104774626A CN201410039827.3A CN201410039827A CN104774626A CN 104774626 A CN104774626 A CN 104774626A CN 201410039827 A CN201410039827 A CN 201410039827A CN 104774626 A CN104774626 A CN 104774626A
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- Prior art keywords
- pipe
- material bed
- batch mixing
- refrigerating device
- mixing plate
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Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B39/00—Cooling or quenching coke
- C10B39/04—Wet quenching
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B39/00—Cooling or quenching coke
- C10B39/10—Cooling or quenching coke combined with agitating means, e.g. rotating tables or drums
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
Abstract
The invention discloses a material cooling device. The material cooling device comprises a housing (1), a rotary material bed (2), a material feeding pipe (3), a material discharge pipe (5) and a driving device (6). The material feeding pipe goes through the housing and enters into the inner cavity, the driving device drives the rotary material bed to rotate so that the material can flow inwards on the rotary material bed along a radial direction and flow out of the material discharge pipe, the material cooling device comprises a material blending plate (8) and a cooling liquid injection system, the cooling liquid injection system comprises multiple top sprayers (9) which are arranged above the rotary material bed and inject a liquid coolant to the material surface, the material blending plate is connected to the housing, faces to the rotary material bed and is inserted into materials so that through rotation of the rotary material bed, the material blending plate stirs the materials. Through the top sprayers, the rotating materials are uniformly cooled. Through an insertion sprayer (11) inserted into the rear part of the material blending plate, and the liquid coolant is fully injected to the materials stirred by the material blending plate so that cooling effects are further improved and technical requirements are satisfied.
Description
Technical field
The present invention relates to a kind of refrigerating device for materials, especially, relate to a kind of chiller for carrying out cooling process to materials such as the high-temperature semi-coke after pyrolysis or coals.
Background technology
After brown coal carry out pyrolysis by moisture eliminator or pyrolyzer, material after the pyrolysis such as the semicoke of high temperature or coal can be formed, need to enter in the chiller as refrigerating device for materials and lowers the temperature.Rotating material bed continuous rotation in chiller, drive fall into this rotating material bed on pyrolysis after material rotates and accepts lower the temperature process, enter after reaching processing requirement in next stage processing unit.In this process, the treatment capacity of material comparatively large (the brown coal treatment capacity of single pyrolyzer reach a few kiloton every day) after considering pyrolysis, temperature very high (reaching about 500 DEG C), when carrying out cooling process in chiller, need to control the residence time of material on rotating material bed, prevent from causing the situations such as spontaneous combustion to occur.With regard to needing, design is a set of to be suitable in chiller high temperature and to measure the system that large material carries out effective cooling process for this.
Summary of the invention
The object of this invention is to provide a kind of refrigerating device for materials, can according to processing requirement effectively to cool timely and effectively to material.
For achieving the above object, the invention provides a kind of refrigerating device for materials, comprise housing, rotating material bed, feed-pipe, discharge nozzle and drive unit, describedly rotating material bedly be arranged in the inner chamber of described housing, described feed-pipe is through described housing and towards described rotating material bed to downward-extension, described drive unit drive described rotating material bed and this rotating material bed on material rotate, and described material is flowed out from described discharge nozzle, wherein, described refrigerating device for materials also comprises batch mixing plate and cooling fluid injection system, this cooling fluid injection system comprises and is arranged on described rotating material bed top with the multiple top showerhead towards material surface injected cool but liquid, described batch mixing plate to be connected on described housing and towards in the described material of described rotating material bed insertion, to stir described material in conjunction with described rotating material bed rotation.
Preferably, described batch mixing plate oppositely inserts in described material relative to described rotating material bed sense of rotation, and the front end face of described batch mixing plate is formed as scarp.
Preferably, described cooling fluid injection system also comprises drop-pipe and inserts shower nozzle, aft end face angle is formed between the aft end face of described batch mixing plate and described rotating material bed upper surface, described insertion shower nozzle is arranged in the back space between described aft end face and described rotating material bed upper surface, described insertion shower nozzle is arranged on one end of described drop-pipe, and the other end of this drop-pipe upwards extends through described batch mixing plate.
Preferably, described aft end face angle is not more than 60 °.
Preferably, described insertion shower nozzle to be fixedly mounted on described drop-pipe and injection direction is set to towards the rear of described batch mixing plate.
Preferably, described insertion shower nozzle is installed in rotation on this drop-pipe around described drop-pipe.
Preferably, described cooling fluid injection system also comprises feed flow main pipeline, this feed flow main pipeline connects multiple described top showerhead respectively to carry cooling fluid, and described insertion shower nozzle is installed in the lower end of described drop-pipe, and upper end is connected to described feed flow main pipeline rotationally.
Preferably, described drop-pipe comprises the vertical section upwards extended through described batch mixing plate and the horizontal section extend horizontally away from this vertical section, and described insertion shower nozzle is installed on the end of described horizontal section.
Preferably, the described vertical section of described drop-pipe and/or horizontal section are the jet pipe of adjustable in length.
Preferably, this refrigerating device for materials also comprises the mounting rod of the inner chamber being arranged in described housing, and the top of this mounting rod is connected on described housing, bottom and described batch mixing plate hinged, can regulate to make the described aft end face angle of this batch mixing plate.
In refrigerating device for materials according to the present invention, by setting up the cooling fluid injection system with multiple top showerhead, can lower the temperature to the material after pyrolysis in forced heat-exchanging mode, and by the batch mixing plate set up to stir stream, in conjunction with top showerhead, uniform decrease in temperature is carried out to rotation material, prevent from material spontaneous combustion and carry out oxidizing water closing reaction etc.Further, also by being inserted into the insertion shower nozzle in the back space of batch mixing plate, fully cooling fluid being sprayed to the material stirred by batch mixing plate, strengthens cooling-down effect further, meeting processing requirement.
Other features and advantages of the present invention are described in detail in embodiment part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification sheets, is used from explanation the present invention, but is not construed as limiting the invention with embodiment one below.In the accompanying drawings:
Fig. 1 is the structural representation of the refrigerating device for materials according to the preferred embodiment of the present invention;
Fig. 2 is the rotating material bed vertical view in the refrigerating device for materials shown in Fig. 1, shows installation site and the spray regime of 8 top showerhead of installation in figure with 8 circle forms; And
Fig. 3 is the mounting structure schematic diagram of the batch mixing plate in the refrigerating device for materials shown in Fig. 1, drop-pipe and insertion shower nozzle.
description of reference numerals
1 housing 2 is rotating material bed
3 feed-pipe 4 exhaust chamber
5 discharge nozzle 6 drive units
7 water sealed tank 8 batch mixing plates
9 top showerhead 10 drop-pipes
11 insert shower nozzle 12 mounting rod
13 flow deflectors
81 front end face 82 aft end faces
D aft end face angle w sense of rotation
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.Should be understood that, embodiment described herein, only for instruction and explanation of the present invention, is not limited to the present invention.
In the present invention, when not doing contrary explanation, the noun of locality of use as " upper and lower " normally for direction shown in the drawings or for each parts mutual alignment relationship description word vertically, on vertical or gravity direction; Similarly, for ease of understanding and describing, " left and right " is normally for shown in the drawings left and right; " inside and outside " refers to profile inside and outside relative to each parts itself, but the above-mentioned noun of locality is not limited to the present invention.
As shown in Figure 1, the invention provides a kind of refrigerating device for materials, comprise housing 1, rotating material bed 2, feed-pipe 3, discharge nozzle 5 and drive unit 6, rotating material bed 2 are arranged in the inner chamber of housing 1, the outer ring portion of feed-pipe 3 through housing 1 and towards the upper surface of rotating material bed 2 stretches into, to accept material on the center hole part that discharge nozzle 5 is engaged in rotating material bed 2, drive unit 6 drives rotating material bed 2 to rotate to make material radially-inwardly can flow on rotating material bed 2, and finally flows out from discharge nozzle 5.Preferably, composition graphs 2 is visible, is divided into multiple ring (in fig. 2 with broken line representation) on rotating material bed 2, so that understand material from outer shroud to inner ring process in rotary moving, described ring wherein can be that virtual form exists, and does not namely delineate on actual rotating material bed 2 or shows.Described multiple ring is furnished with multiple flow deflector 13 successively, the material (high-temperature semi-coke namely after pyrolysis or coal etc.) falling into rotating material bed 2 from feed-pipe 3 is made first to be deposited in the outer ring portion of the upper surface of rotating material bed 2, the scraper plate (not shown) of being installed by setting height scrape smooth after, due to rotating material bed 2 rotarily drive and the guide functions of flow deflector 13, and further, the upper surface of rotating material bed 2 can be designed to radial direction downward-sloping from outside to inside, constantly radially-inwardly move gradually while impelling material to rotate on rotating material bed 2 like this, finally move on center hole part, thus flowed out by discharge nozzle 5, enter in next stage processing unit.
In the present embodiment, the moisture eliminator of refrigerating device for materials for brown coal process or the next stage processing unit of pyrolyzer, namely chiller is that example is specifically addressed.Material is that high-temperature material is lowered the temperature through the object of chiller, but considers that material treatment capacity is large, temperature of charge is high and the bed of material is thicker, thus needs to control the residence time of material on rotating material bed 2, prevents the phenomenons such as spontaneous combustion.According to spilling cooling fluid cooling, then owing to being deposited in the bed of material thicker (generally reaching hundreds of millimeter) on rotating material bed 2 of chiller, only carry out top layer sprinkling and be difficult to make cooling fluid penetrate into substrate material, this can cause inhomogeneous cooling even substrate material spontaneous combustion.If the liquid measure of spraying is excessive, then can form liquid liquid and cooled material is discharged in the lump from the discharge nozzle of chiller bottom, this does not obviously meet processing requirement yet.For this reason, as total inventive concept, shown in Fig. 1 according in chiller of the present invention, be also provided with batch mixing plate 8 and cooling fluid injection system especially.As depicted in figs. 1 and 2, this cooling fluid injection system comprises and being arranged on above in the of rotating material bed 2 with the multiple top showerhead 9 towards this material surface injected cool on rotating material bed 2 but liquid, in Fig. 2, display is provided with eight top showerhead 9, the installation site of eight top showerhead and spray regime are corresponding is in the drawings shown as the center of circle and circle form, and the position of certainly concrete top showerhead 9, quantity, spouting liquid size and mounting height etc. can adjust according to processing requirement.In addition, batch mixing plate 8 to be fixedly connected on housing 1 and to insert in materials towards rotating material bed 2, stirs and mixture with the rotation in conjunction with rotating material bed 2.
In the present invention, material after dry or pyrolysis is lowered the temperature in forced heat-exchanging mode by arranging multiple top showerhead 9 above rotating material bed 2, top showerhead 9 is preferably the adjustable shower nozzle of spouting liquid, the liquid measure sprayed is made just in time to meet the liquid measure reducing semicoke ature of coal process requirements temperature, both prevented liquid measure too small and made material spontaneous combustion and carry out oxidizing water to close reaction, and also prevented liquid measure excessive and cooling fluid is discharged from discharge nozzle 5 in the lump with semicoke.But, consider that bed thickness is comparatively large, the cooling fluid of being sprayed up by top showerhead 9 is difficult to the material being effectively cooled to bottom by naturally osmotic mode, has thus set up batch mixing plate 8 to stir stream, make the material location swap after bottom high-temperature material and top layer cooling, mutually mix.Like this, cooling fluid can evenly be sprayed on material in rotary moving in conjunction with the use of top showerhead 9 by batch mixing plate 8, make cooling evenly, effect is better.Meanwhile, a large amount of high-temperature steams that the high-temperature material after pyrolysis can produce after meeting cooling fluid cooling, discharge from the exhaust chamber 4 on chiller top.These steam generally with certain corrodibility, rotating material bed 2 of the chiller thus in present embodiment and the inner side of housing 1 is all brick refractory materials, rotating material bed 2 and the steel construction of housing 1 all adopt corrosion-resistant stainless steel.
In chiller as shown in Figure 1, the supporting of rotating material bed 2 adopts the form of center steering bearing.Drive unit 6 adopts the structure of oil motor and step-down gear, is the powered rotation of rotating material bed 2, and reaches the object of adjusting rotary speed by pin tooth transmission.A whole set of drive unit 6 is arranged on outside the housing 1 of chiller, and the water sealed tank 7 by side between rotating material bed 2 and the housing 1 of chiller seals, and prevents water vapor and reactant gases from leaking from chiller and causing pollution to external world.Only for example in certain present embodiment, it will be appreciated by persons skilled in the art that for rotating material bed 2 supporting and rotary actuation mode can have various ways and structure, similarly, also can there is various forms to the sealing means of chiller, will not enumerate at this.
As shown in Figure 3, the sense of rotation w of batch mixing plate 8 relative to rotating material bed 2 oppositely inserts in material, the front end face 81(of batch mixing plate 8 is namely in the face of rotating the end face of material) be formed as scarp, to reduce impact and be convenient to material smooth outflow, produce after the rotation material of floor portions contacts scarp simultaneously and stir, thus the cooling fluid that top showerhead 9 sprays can be sprayed onto on substrate material.
Further, cooling fluid injection system also comprises drop-pipe 10 and inserts shower nozzle 11, aft end face angle d is formed between the aft end face 82 of batch mixing plate 8 and the upper surface of rotating material bed 2, inserting shower nozzle 11 is arranged in the back space between the aft end face 82 of batch mixing plate 8 and the upper surface of rotating material bed 2, inserting shower nozzle 11 is arranged on one end of drop-pipe 10, and the other end of this drop-pipe 10 upwards extends through batch mixing plate 8.Like this, by arranging through the insertion shower nozzle 11 of batch mixing plate 8, in the back space of batch mixing plate 8, directly spray cooling fluid towards the centre of the bed of material and floor portions, make speed of cooling faster evenly and effect is optimum, meet processing requirement.Wherein, the aft end face angle d of batch mixing plate 8 is the key factors of the size forming described back space, when excessive or too small, back space all can be made less and be unfavorable for install insert shower nozzle 11, aft end face angle d is designed to be not more than 60 ° in the present embodiment.
When inserting shower nozzle 11 and fixedly mount and position need not adjusting, insertion shower nozzle 11 to be fixedly mounted on drop-pipe 10 and injection direction is set to towards the rear of batch mixing plate 8, to form spray angle and the projected area of maximum range.Selectively, insert shower nozzle 11 to be also installed in rotation on this drop-pipe 10 around drop-pipe 10.As shown in Figure 3, when drop-pipe 10 comprise the vertical section that upwards extends through batch mixing plate 8 and extend horizontally away from this vertical section horizontal section time, insert shower nozzle 11 and be installed on the end of horizontal section.Now, the vertical section that insertion shower nozzle 11 and horizontal section can be designed to around drop-pipe 10 is rotatable, and vertical section fixed installation is also static, thus the spray angle of insertion shower nozzle 11 is maximized, and jet face covers the back space of batch mixing plate 8 to greatest extent.In addition, also the vertical section of drop-pipe 10 and horizontal section and insertion shower nozzle 11 thereof all can be rotated around the central axis of vertical section, now the upper end of drop-pipe 10 is preferably connected in the feed flow main pipeline (not shown) of cooling fluid injection system rotationally.This feed flow main pipeline connects multiple top showerhead 9 and multiple insertion shower nozzle 11 respectively to carry cooling fluid.It will be appreciated by persons skilled in the art that the Rotatable connecting structure between above-mentioned pipeline can have multiple implementation, such as joint articulated form etc., are not described in detail in this.
In addition, the vertical section of drop-pipe 10 and/or horizontal section are preferably the jet pipe of adjustable in length, thus adapt can be carried out, to obtain the best cooling-down effect to material according to the back space size of the position of batch mixing plate 8, batch mixing plate 8 and stream flow feature etc. to drop-pipe 10 and insertion shower nozzle 11.Similarly, the installation site of batch mixing plate 8 is also preferably adjustable form, makes back space adjustable.As shown in Figure 3, batch mixing plate 8 is connected on housing 1 by mounting rod 12, and such as, in the crossbeam (not shown) at housing 1 top, one end of batch mixing plate 8 is articulated with on mounting rod 12 rotationally, thus aft end face angle d can regulate, so that install and regulate the parameters inserting shower nozzle 11.
To sum up, the refrigerating device for materials (chiller) designed by the present invention is particularly useful for the materials such as the brown coal after the large-scale drying of industrialization or pyrolysis processing.Due to good cooling results and cooling efficiency is high, can processing requirement be reached, prevent from dried material spontaneous combustion and carry out oxidizing water closing reaction, improve the process production capacity of chiller.
Below the preferred embodiment of the present invention is described in detail by reference to the accompanying drawings; but; the present invention is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition, each concrete technical characteristic described in above-mentioned embodiment, in reconcilable situation, can be combined by any suitable mode, in order to avoid unnecessary repetition, the present invention illustrates no longer separately to various possible array mode.
In addition, also can carry out arbitrary combination between various different embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (10)
1. a refrigerating device for materials, this refrigerating device for materials comprises housing (1), rotating material bed (2), feed-pipe (3), discharge nozzle (5) and drive unit (6), described rotating material bed (2) are arranged in the inner chamber of described housing (1), described feed-pipe (3) is through described housing (1) and towards described rotating material bed (2) to downward-extension, described drive unit (6) drive described rotating material bed (2) and this rotating material bed on material rotate, and described material is flowed out from described discharge nozzle (5), wherein, described refrigerating device for materials also comprises batch mixing plate (8) and cooling fluid injection system, this cooling fluid injection system comprises and is arranged on described rotating material bed (2) top with the multiple top showerhead (9) towards material surface injected cool but liquid, described batch mixing plate (8) is connected to described housing (1) and goes up and insert in described material towards described rotating material bed (2), described material is stirred with the rotation in conjunction with described rotating material bed (2).
2. refrigerating device for materials according to claim 1, wherein, described batch mixing plate (8) is oppositely inserted in described material relative to the sense of rotation (w) of described rotating material bed (2), and the front end face (81) of described batch mixing plate (8) is formed as scarp.
3. refrigerating device for materials according to claim 2, wherein, described cooling fluid injection system also comprises drop-pipe (10) and inserts shower nozzle (11), aft end face angle (d) is formed between the aft end face (82) of described batch mixing plate (8) and the upper surface of described rotating material bed (2), in back space between the upper surface that described insertion shower nozzle (11) is arranged on described aft end face (82) and described rotating material bed (2), described insertion shower nozzle (11) is arranged on one end of described drop-pipe (10), the other end of this drop-pipe (10) upwards extends through described batch mixing plate (8).
4. refrigerating device for materials according to claim 3, wherein, described aft end face angle (d) is not more than 60 °.
5. refrigerating device for materials according to claim 3, wherein, described insertion shower nozzle (11) is fixedly mounted on the upper and injection direction of described drop-pipe (10) and is set to towards the rear of described batch mixing plate (8).
6. refrigerating device for materials according to claim 3, wherein, described insertion shower nozzle (11) is installed in rotation on this drop-pipe (10) around described drop-pipe (10).
7. refrigerating device for materials according to claim 3, wherein, described cooling fluid injection system also comprises feed flow main pipeline, this feed flow main pipeline connects multiple described top showerhead (9) respectively to carry cooling fluid, described insertion shower nozzle (11) is installed in the lower end of described drop-pipe (10), and upper end is connected to described feed flow main pipeline rotationally.
8. refrigerating device for materials according to claim 3, wherein, described drop-pipe (10) comprises the vertical section upwards extended through described batch mixing plate (8) and the horizontal section extend horizontally away from this vertical section, and described insertion shower nozzle (11) is installed on the end of described horizontal section.
9. refrigerating device for materials according to claim 3, wherein, the described vertical section of described drop-pipe (10) and/or horizontal section are the jet pipe of adjustable in length.
10. refrigerating device for materials according to claim 3, wherein, this refrigerating device for materials also comprises the mounting rod (12) of the inner chamber being arranged in described housing (1), the top of this mounting rod (12) is connected on described housing (1), bottom and described batch mixing plate (8) hinged, can regulate to make described aft end face angle (d) of this batch mixing plate (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410039827.3A CN104774626B (en) | 2014-01-10 | 2014-01-27 | Material cooling device |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410013179 | 2014-01-10 | ||
| CN2014100131794 | 2014-01-10 | ||
| CN201410039827.3A CN104774626B (en) | 2014-01-10 | 2014-01-27 | Material cooling device |
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| Publication Number | Publication Date |
|---|---|
| CN104774626A true CN104774626A (en) | 2015-07-15 |
| CN104774626B CN104774626B (en) | 2017-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410039827.3A Active CN104774626B (en) | 2014-01-10 | 2014-01-27 | Material cooling device |
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| CN (1) | CN104774626B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107189832A (en) * | 2017-06-20 | 2017-09-22 | 新奥科技发展有限公司 | A kind of preparation method of water Jiao slurry |
| CN108034438A (en) * | 2017-11-16 | 2018-05-15 | 北京神雾电力科技有限公司 | A kind of high-temperature semi-coke air-humidification method and device |
| CN114292655A (en) * | 2021-12-27 | 2022-04-08 | 王恩厚 | Coke mountain peak formula quenching equipment based on carbon discharges |
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| FR2135507A1 (en) * | 1971-05-04 | 1972-12-22 | Lillers Ste Indle | Coke quenching assembly - for coke oven battery |
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| CN202279801U (en) * | 2011-09-22 | 2012-06-20 | 密西西比国际水务有限公司 | Carbonization device |
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| US3594287A (en) * | 1969-12-22 | 1971-07-20 | Marathon Oil Co | Apparatus for cooling solids by direct contact with liquids |
| FR2135507A1 (en) * | 1971-05-04 | 1972-12-22 | Lillers Ste Indle | Coke quenching assembly - for coke oven battery |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107189832A (en) * | 2017-06-20 | 2017-09-22 | 新奥科技发展有限公司 | A kind of preparation method of water Jiao slurry |
| CN107189832B (en) * | 2017-06-20 | 2019-02-26 | 新奥科技发展有限公司 | A kind of preparation method of water coke slurry |
| CN108034438A (en) * | 2017-11-16 | 2018-05-15 | 北京神雾电力科技有限公司 | A kind of high-temperature semi-coke air-humidification method and device |
| CN114292655A (en) * | 2021-12-27 | 2022-04-08 | 王恩厚 | Coke mountain peak formula quenching equipment based on carbon discharges |
| CN114292655B (en) * | 2021-12-27 | 2023-12-08 | 内蒙古星光煤炭集团鄂托克旗华誉煤焦化有限公司 | Coke mountain-peak coke quenching equipment based on carbon emission |
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| CN104774626B (en) | 2017-02-15 |
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Address after: 100011 Beijing Dongcheng District, West Binhe Road, No. 22 Patentee after: CHINA ENERGY INVESTMENT Corp.,Ltd. Patentee after: Beijing low carbon clean energy research institute Address before: 100011 Shenhua building, 22 West Binhe Road, Dongcheng District, Beijing Patentee before: SHENHUA GROUP Corp.,Ltd. Patentee before: Beijing low carbon clean energy research institute |