CN210710772U - Filler kaolin production line for FCC catalyst - Google Patents
Filler kaolin production line for FCC catalyst Download PDFInfo
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- CN210710772U CN210710772U CN201920064937.3U CN201920064937U CN210710772U CN 210710772 U CN210710772 U CN 210710772U CN 201920064937 U CN201920064937 U CN 201920064937U CN 210710772 U CN210710772 U CN 210710772U
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- 239000005995 Aluminium silicate Substances 0.000 title claims abstract description 49
- 235000012211 aluminium silicate Nutrition 0.000 title claims abstract description 49
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 239000003054 catalyst Substances 0.000 title claims abstract description 34
- 239000000945 filler Substances 0.000 title claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- 239000002002 slurry Substances 0.000 claims abstract description 94
- 239000002245 particle Substances 0.000 claims abstract description 48
- 238000000227 grinding Methods 0.000 claims abstract description 32
- 238000004537 pulping Methods 0.000 claims abstract description 18
- 230000018044 dehydration Effects 0.000 claims abstract description 16
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 16
- 239000012535 impurity Substances 0.000 claims abstract description 15
- 239000002689 soil Substances 0.000 claims abstract description 15
- 239000012141 concentrate Substances 0.000 claims abstract description 14
- 238000007885 magnetic separation Methods 0.000 claims abstract description 13
- 230000009471 action Effects 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 7
- 239000011707 mineral Substances 0.000 claims abstract description 7
- 238000000926 separation method Methods 0.000 claims abstract description 6
- 238000002156 mixing Methods 0.000 claims abstract description 5
- 238000003825 pressing Methods 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims description 15
- 230000007246 mechanism Effects 0.000 claims description 8
- 238000004064 recycling Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 239000002270 dispersing agent Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 239000004927 clay Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000004115 Sodium Silicate Substances 0.000 description 1
- HPTYUNKZVDYXLP-UHFFFAOYSA-N aluminum;trihydroxy(trihydroxysilyloxy)silane;hydrate Chemical group O.[Al].[Al].O[Si](O)(O)O[Si](O)(O)O HPTYUNKZVDYXLP-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010438 granite Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 description 1
- 235000019982 sodium hexametaphosphate Nutrition 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 1
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Abstract
The utility model discloses a filler kaolin production line for FCC catalyst, which comprises a pulping device, a magnetic separation device, a grinding device, a grading device and a dehydration device which are connected in sequence; the pulping device is used for mixing and stirring-325-mesh coarse concentrate extracted from building residue soil in southern Fujian with water to obtain slurry; a separation cavity in the magnetic separation device is connected with the slurry and adsorbs magnetic impurities in the slurry under the action of the magnetic field intensity of the superconducting magnet; the grinding device grinds the mineral particles in the slurry through the powerful grinding and stripping action of the grinding medium; the grading device is used for separating coarse materials with the grain diameter larger than 2 mu m in the slurry after being grinded and peeled by the grinding device; the dehydration device is used for carrying out filter pressing dehydration on the slurry after being classified by the classification device to prepare the filler kaolin which can be used in the FCC catalyst. The filler kaolin production line for the FCC catalyst can extract-325-mesh coarse concentrate extracted from building residue soil in southern Fujian regions, and has high resource recycling rate.
Description
Technical Field
The utility model relates to a building dregs processing utilizes technical field, concretely relates to utilize building dregs preparation FCC filler kaolin production line for catalyst.
Background
Because the kaolin can effectively improve the physical properties of an FCC catalytic system, the kaolin is widely applied as a filler of an FCC catalyst, however, because the kaolin for the catalyst has higher requirements on the purity, the particle aperture and the specific surface of the product, and the yield of the kaolin for the catalyst extracted from the kaolin mineral resources at present is not high, the kaolin for the FCC catalyst has higher requirements on the properties of grinding equipment or needs to be ground for multiple times in the process of extracting the kaolin for the FCC catalyst, the consumed energy is larger, and the production cost is higher.
It is well known that the earth's surface in the south of Fujian consists mainly of weathered or semiweathered layers of granite plus a layer of clay on the surface. With the rapid advance of urbanization, a large amount of building muck is generated, and construction of basements, subways, tunnels and the like of high-rise and super-high-rise buildings is mainly used. The construction dregs are mostly transported to a landfill site for landfill after a few of the construction dregs are automatically digested by a construction unit for a long time (such as sand and stone for cement, or backfilling and the like); the building residue soil can also be a precious non-metallic mineral resource from the aspect of changing, and compared with the mature and developed mineral resources, the purity of the kaolin extracted by the building residue soil through superconduction can reach the requirement of GB/T14563-2008, and the building residue soil has good application prospect when being used as the filler of the FCC catalyst; at present, the utilization rate of building waste soil, particularly the building waste soil generated in the south of Fujian, is extremely low, so that not only is the resource waste caused, but also a certain influence is caused on the ecological environment.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the above-mentioned defect or the problem that exist among the background art, provide a filler kaolin production line for FCC catalyst, this filler kaolin production line for FCC catalyst can further purify the coarse concentrate of 325 meshes that is drawed by building dregs, and it can extract the filler kaolin for FCC catalyst that the particle content that is less than 2 μm is higher than 80% with simple mode of production, low in production cost, kaolin productivity and high-usage.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a production line of filler kaolin for FCC catalyst comprises a pulping device, a magnetic separation device, a grinding device, a grading device and a dehydration device which are connected in sequence; the pulping device is used for mixing and stirring-325-mesh coarse concentrate extracted from building residue soil in southern Fujian with water to obtain slurry; the magnetic separation device comprises a separation cavity and a superconducting magnet; the sorting cavity is connected with the slurry and adsorbs magnetic impurities in the slurry under the action of the magnetic field intensity of the superconducting magnet; the grinding device is internally provided with a grinding medium so as to grind mineral particles in the slurry through the powerful grinding and stripping action between the grinding medium and the slurry for removing the magnetic impurities; the grading device is used for separating coarse materials with the particle size larger than 2 mu m in the slurry after being grinded and peeled by the grinding device and obtaining slurry with the particles with the particle size smaller than 2 mu m accounting for more than 80% of the total particle amount; and the dehydration device is used for carrying out filter pressing dehydration on the slurry classified by the classification device to prepare the filler kaolin used in the FCC catalyst.
Further, the pulping device comprises a pulping machine and a stirrer; the slurry pounding machine is used for feeding-325-mesh coarse concentrate extracted from building residue soil in southern Fujian and water and pounding the coarse concentrate into slurry, and a slurry outlet of the slurry pounding machine is communicated with a material receiving port of the stirring machine and is higher than the material receiving port of the stirring machine; the stirrer is used for stirring the slurry and adjusting the concentration of the slurry to 8-15%.
Further, the grinding device is a stripping machine; the height of the pulp outlet of the stripping machine is higher than that of the pulp inlet of the grading device.
Further, the grading device is a horizontal centrifugal grader, and the height of a pulp outlet of the grading device is higher than that of a pulp inlet of the dewatering device; the horizontal centrifugal classifier is provided with a differential and a laser particle size analyzer for determining the size of particles; and the differential mechanism adjusts the rotation speed difference between a rotary drum and a screw in the horizontal centrifugal classifier according to the particle size in the slurry fed back by the laser particle size analyzer.
Further, the dewatering device is a filter press.
As can be seen from the above description of the present invention, compared with the prior art, the present invention has the following advantages:
1. in the technical scheme, 325-mesh coarse concentrate slurry extracted from building residue soil in southern Fujian area after being mixed and stirred by a pulping device is subjected to magnetic separation to remove magnetic impurities so as to avoid the influence of the magnetic impurities on the normal work of the device in the subsequent process; and then the slurry from which the magnetic impurities are removed is fully ground and peeled by a grinding medium, so that the particle size of kaolin particles in the slurry is small enough to meet the size requirement of filler kaolin required by an FCC catalyst, and the ground and peeled slurry is classified by a classification device, so that the particles smaller than 2 microns in the kaolin in the slurry account for more than 80% of the total particle amount, so that the obtained kaolin can meet the requirements of the specific surface area and the particle aperture of the filler kaolin required by the FCC catalyst, and simultaneously, the purity of the kaolin is further improved.
2. The stirrer in the pulping device can be used for stirring the slurry and adjusting the concentration of the slurry to 8-15% so as to meet the requirement of the grading device on the concentration of the slurry; the concentration is too high, and the grading by a grading device is not easy; too low a concentration may reduce the kaolin yield to the desired size requirement.
3. The height of the slurry outlet of the stripping machine is set to be higher than that of the slurry inlet of the grading device, so that slurry which is milled and stripped in the stripping machine is guided into the grading device, production efficiency is improved, and energy consumption is reduced.
4. The grading device can realize reliable grading by adopting a horizontal centrifugal grader, and has simple structure and reliable function; the height of the slurry outlet of the horizontal centrifugal classifier is set to be higher than that of the slurry inlet of the dewatering device, so that slurry is conveniently led into the dewatering device, the production efficiency is improved, and the energy consumption is reduced.
5. The filter press is used for realizing the dehydration of the slurry to obtain the required filler kaolin for the FCC catalyst, and has simple structure and reliable function.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a packing kaolin production line for FCC catalyst in accordance with an embodiment of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are preferred embodiments of the invention and should not be considered as excluding other embodiments. Based on the embodiment of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention.
In the claims, the specification and the drawings, unless otherwise expressly limited, the terms "first," "second," or "third," etc. are used for distinguishing between different elements and not for describing a particular sequence.
In the claims, the description and the drawings of the present application, unless otherwise expressly limited, the terms "central," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," "counterclockwise," and the like are used to indicate orientations and positional relationships relative to one another in the drawings, and are used merely for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the referenced mechanism or element must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be construed as limiting the scope of the present application.
In the claims, the description and the drawings of the present application, unless otherwise expressly limited, the term "fixedly connected" or "fixedly connected" is used, which is to be understood broadly, that is, any connection mode without displacement relation or relative rotation relation between the two, that is, including non-detachably fixed connection, integrated connection and fixed connection through other mechanisms or elements.
In the claims, the specification and the drawings, the terms "including", "comprising" and variations thereof, if used, are intended to be inclusive and not limiting.
Referring to fig. 1, fig. 1 shows a schematic structural diagram of a kaolin clay production line as a filler for FCC catalyst according to an embodiment of the present invention. As shown in figure 1, in the embodiment of the present invention, the packing kaolin production line for FCC catalyst comprises a pulping device 1, a magnetic separation device 2, a grinding device 3, a classification device 4 and a dehydration device 5 which are connected in sequence.
Wherein the pulping device 1 is used for mixing and stirring 325-mesh coarse concentrate extracted from building residue soil in southern Fujian with water to form slurry.
Specifically, the pulping device 1 comprises a pulping machine 11 and a stirring machine 12; the slurry pounding machine 11 is used for receiving 325-mesh coarse concentrate extracted from building residue soil in southern Fujian and water and pounding the coarse concentrate into slurry, and a slurry outlet of the slurry pounding machine is communicated with a material receiving port of the stirring machine 12 and is higher than the material receiving port of the stirring machine 12; the mixer 12 is used to mix the slurry and adjust the slurry concentration to 8-15%. Immediately, the blender 12 includes a tank and a blender bar; the tank body is provided with a pulp inlet and a pulp outlet; the stirring rod is driven by a driving mechanism to rotate or move so as to stir the slurry in the tank body.
The magnetic separation device 2 comprises a separation cavity 21 and a superconducting magnet 22; the sorting cavity 21 is connected with the slurry and adsorbs magnetic impurities in the slurry under the action of the magnetic field intensity of the superconducting magnet 22. Specifically, the sorting chamber 21 can axially displace relative to the superconducting magnet 22, and the magnetic medium in the sorting chamber can adsorb magnetic substances in the slurry under the action of the magnetic field of the superconducting magnet 22, so that the purpose of removing magnetic impurities in the slurry is achieved. In this embodiment, the dispersant added during magnetic separation is a sodium silicate aqueous solution, and the addition amount of the dispersant is 0.8-1.2% of the dry weight of kaolin.
The grinding device 3 is internally provided with grinding media so as to grind mineral particles in the slurry through the powerful grinding and stripping action between the grinding media and the slurry for removing the magnetic impurities; specifically, the grinding mechanism comprises a feeding unit 31 and a stripping machine 32, the feeding unit 31 is used for guiding the slurry subjected to magnetic separation in the separation cavity 21 into the stripping machine 32, one end of the feeding unit is connected to a discharge hole of the separation cavity 21, and the other end of the feeding unit is connected to a feed hole of the stripping machine 32; the stripping machine 32 comprises the grinding medium, and the stripping machine 32 grinds the particles in the slurry through the strong action of the grinding medium and the slurry; wherein, the feeding mechanism can adopt a starting diaphragm pump.
Preferably, the height of the slurry outlet of the stripping machine 32 is higher than the slurry inlet of the classifying device 4.
The grading device 4 is used for separating coarse materials with the particle size of more than 2 microns in the slurry milled and peeled by the grinding device 3 and obtaining slurry with particles with the particle size of less than 2 microns accounting for more than 80% of the total particle amount; in the embodiment, the grading device 4 is a horizontal centrifugal grader, and the height of the pulp outlet of the grading device is higher than that of the pulp inlet of the dewatering device 5; the horizontal centrifugal classifier is provided with a differential and a laser particle size analyzer for determining the size of particles; the differential mechanism adjusts the rotating speed difference between a rotary drum and a screw in the horizontal centrifugal classifier according to the particle size in the slurry fed back by the laser particle size analyzer; the rotary drum and the screw rotate at the same direction and high speed at a certain differential speed, slurry is continuously introduced into the conveying screw inner cylinder through the feeding pipe, enters the rotary drum after being accelerated, and heavier particles are deposited on the wall of the rotary drum to form a slag layer under the action of a centrifugal force field; the material conveying screw continuously pushes deposited particles to the conical end of the rotary drum, the particles are discharged out of the machine through the slag discharge port, slurry containing lighter particles forms an inner-layer liquid ring, the inner-layer liquid ring continuously overflows from the rotary drum through an overflow port at the large end of the rotary drum and is led out through a slurry outlet, and a fine-grained halloysite structure is separated. In this example, the dispersant added during centrifugal classification was sodium hexametaphosphate, and the amount added was 0.1 to 0.2% of the dry weight of kaolin.
The dehydration device 5 is used for carrying out filter pressing dehydration on the slurry which is graded by the grading device 4 to prepare filler kaolin which can be used in an FCC catalyst; preferably, in this embodiment, the dewatering device 5 is a filter press.
The embodiment of the utility model provides a when the in-service use, leading-in building dregs and water in the southern Fujian district to the thick liquid of mixing preparation in the pulp grinder 11, after the thick liquid that flows out by pulp grinder 11 stirs evenly through mixer 12 and adjusts the thick liquid concentration to 8-15%; and (2) introducing the slurry into a magnetic separation device 2 to remove magnetic impurities, then grinding and stripping the slurry by a stripping machine 32 and classifying the slurry by a horizontal centrifugal classifier to obtain slurry with particles with the particle size of less than 2 mu m accounting for more than 80 percent of the total particles, and then performing filter pressing and dehydration on the slurry by a filter press to obtain the required filler kaolin in the FCC catalyst.
According to the embodiment, 325-mesh rough concentrate slurry extracted from building residue soil in southern Fujian areas after being mixed and stirred by the pulping device 1 is subjected to magnetic impurity removal by the magnetic separation device 2, so that the magnetic impurities are prevented from influencing the normal work of the device in the subsequent process; and then the slurry from which the magnetic impurities are removed is fully ground and peeled by a grinding medium, so that the particle size of kaolin particles in the slurry is small enough to meet the size requirement of filler kaolin required by an FCC catalyst, and the ground and peeled slurry is classified by a classification device 4, so that the particles smaller than 2 mu m in the kaolin in the slurry account for more than 80 percent of the total particle amount, so that the obtained kaolin can meet the requirements of the specific surface area and the particle pore size of the filler kaolin required by the FCC catalyst, and simultaneously, the purity of the kaolin is further improved.
The stirrer 12 in the pulping device 1 can be used for stirring the slurry and adjusting the concentration of the slurry to 8-15% so as to meet the requirement of the grading device 4 on the concentration of the slurry; the concentration is too high, and the grading by the grading device 4 is not easy; too low a concentration may reduce the kaolin yield to the desired size requirement.
The height of the pulp outlet of the stripping machine 32 is set to be higher than that of the pulp inlet of the grading device 4, so that the pulp milled and stripped in the stripping machine 32 is conveniently led into the grading device 4, the production efficiency is improved, and the energy consumption is reduced.
The grading device 4 can realize reliable grading by adopting a horizontal centrifugal grader, and has simple structure and reliable function; the height of the slurry outlet of the horizontal centrifugal classifier is set to be higher than that of the slurry inlet of the dewatering device 5, so that slurry is conveniently led into the dewatering device 5, the production efficiency is improved, and the energy consumption is reduced.
The filter press is used for realizing the dehydration of the slurry to obtain the required filler kaolin for the FCC catalyst, and has simple structure and reliable function.
Synthesize above analysis, the utility model discloses a technical scheme has solved all technical problem that the specification lists, has realized corresponding technological effect.
The description of the above specification and examples is intended to illustrate the scope of the invention, but should not be construed as limiting the scope of the invention. Modifications, equivalents and other improvements which may be made to the embodiments of the invention or to some of the technical features thereof by a person of ordinary skill in the art through logical analysis, reasoning or limited experimentation in light of the above teachings of the invention or the above embodiments are intended to be included within the scope of the invention.
Claims (5)
1. A filler kaolin production line for FCC catalysts is characterized in that: comprises a pulping device, a magnetic separation device, a grinding device, a grading device and a dehydration device which are connected in sequence;
the pulping device is used for mixing and stirring-325-mesh coarse concentrate extracted from building residue soil in southern Fujian with water to obtain slurry; the magnetic separation device comprises a separation cavity and a superconducting magnet; the sorting cavity is connected with the slurry and adsorbs magnetic impurities in the slurry under the action of the magnetic field intensity of the superconducting magnet; the grinding device is internally provided with a grinding medium so as to grind mineral particles in the slurry through the powerful grinding and stripping action between the grinding medium and the slurry for removing the magnetic impurities; the grading device is used for separating coarse materials with the particle size larger than 2 mu m in the slurry after being grinded and peeled by the grinding device and obtaining slurry with the particles with the particle size smaller than 2 mu m accounting for more than 80% of the total particle amount; and the dehydration device is used for carrying out filter pressing dehydration on the slurry classified by the classification device to prepare the filler kaolin used in the FCC catalyst.
2. The filler kaolin production line for FCC catalysts as claimed in claim 1, wherein: the pulping device comprises a pulping machine and a stirrer; the slurry pounding machine is used for feeding-325-mesh coarse concentrate extracted from building residue soil in southern Fujian and water and pounding the coarse concentrate into slurry, and a slurry outlet of the slurry pounding machine is communicated with a material receiving port of the stirring machine and is higher than the material receiving port of the stirring machine; the stirrer is used for stirring the slurry and adjusting the concentration of the slurry to 8-15%.
3. The filler kaolin production line for FCC catalysts as claimed in claim 1, wherein: the grinding device is a stripping machine; the height of the pulp outlet of the stripping machine is higher than that of the pulp inlet of the grading device.
4. The filler kaolin production line for FCC catalysts as claimed in claim 1, wherein: the grading device is a horizontal centrifugal grader, and the height of a pulp outlet of the grading device is higher than that of a pulp inlet of the dewatering device; the horizontal centrifugal classifier is provided with a differential and a laser particle size analyzer for determining the size of particles; and the differential mechanism adjusts the rotation speed difference between a rotary drum and a screw in the horizontal centrifugal classifier according to the particle size in the slurry fed back by the laser particle size analyzer.
5. The filler kaolin production line for FCC catalysts as claimed in claim 1, wherein: the dehydration device is a filter press.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920064937.3U CN210710772U (en) | 2019-01-15 | 2019-01-15 | Filler kaolin production line for FCC catalyst |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920064937.3U CN210710772U (en) | 2019-01-15 | 2019-01-15 | Filler kaolin production line for FCC catalyst |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113306015A (en) * | 2021-05-10 | 2021-08-27 | 三峡大学 | Device and method for preparing vegetation soil layer by using magnetic mortar |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113306015A (en) * | 2021-05-10 | 2021-08-27 | 三峡大学 | Device and method for preparing vegetation soil layer by using magnetic mortar |
| CN113306015B (en) * | 2021-05-10 | 2022-05-06 | 三峡大学 | Device and method for preparing vegetation soil layer by using magnetic mortar |
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Address after: 361100 First Floor Workshop, No. 681 Xinmin Avenue, Tong'an District, Xiamen City, Fujian Province Patentee after: Xiamen xinyisheng New Material Technology Co.,Ltd. Address before: 361100 First Floor Workshop, No. 681 Xinmin Avenue, Tong'an District, Xiamen City, Fujian Province Patentee before: XIAMEN XINYISHENG NONMETAL MATERIAL SCIENCE & TECHNOLOGY Co.,Ltd. |
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Denomination of utility model: A production line of kaolin filler for FCC catalyst Effective date of registration: 20210508 Granted publication date: 20200609 Pledgee: Xiamen finance Company limited by guarantee Pledgor: Xiamen xinyisheng New Material Technology Co.,Ltd. Registration number: Y2021980003371 |
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Denomination of utility model: A filler kaolin production line for FCC catalyst Effective date of registration: 20220328 Granted publication date: 20200609 Pledgee: Xiamen SME Financing Guarantee Co.,Ltd. Pledgor: Xiamen xinyisheng New Material Technology Co.,Ltd. Registration number: Y2022110000068 |
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