CN113929439A - Method for manufacturing spherical ceramic particles for filtering water and method for manufacturing filtering water device by using same - Google Patents
Method for manufacturing spherical ceramic particles for filtering water and method for manufacturing filtering water device by using same Download PDFInfo
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- CN113929439A CN113929439A CN202111238844.6A CN202111238844A CN113929439A CN 113929439 A CN113929439 A CN 113929439A CN 202111238844 A CN202111238844 A CN 202111238844A CN 113929439 A CN113929439 A CN 113929439A
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- 239000000919 ceramic Substances 0.000 title claims abstract description 132
- 239000002245 particle Substances 0.000 title claims abstract description 122
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 83
- 238000001914 filtration Methods 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 238000005245 sintering Methods 0.000 claims abstract description 27
- 239000000203 mixture Substances 0.000 claims abstract description 21
- 229910052751 metal Inorganic materials 0.000 claims abstract description 20
- 239000002184 metal Substances 0.000 claims abstract description 20
- 238000001035 drying Methods 0.000 claims abstract description 18
- 238000000465 moulding Methods 0.000 claims abstract description 18
- 238000002156 mixing Methods 0.000 claims abstract description 17
- 238000002360 preparation method Methods 0.000 claims abstract description 14
- 239000000843 powder Substances 0.000 claims abstract description 13
- 238000012216 screening Methods 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims abstract description 10
- 238000000227 grinding Methods 0.000 claims abstract description 8
- 238000003825 pressing Methods 0.000 claims abstract description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 21
- 238000003756 stirring Methods 0.000 claims description 15
- 239000011230 binding agent Substances 0.000 claims description 14
- 239000004576 sand Substances 0.000 claims description 14
- 239000011148 porous material Substances 0.000 claims description 12
- 239000004927 clay Substances 0.000 claims description 11
- 239000003381 stabilizer Substances 0.000 claims description 11
- 239000008187 granular material Substances 0.000 claims description 9
- 238000004321 preservation Methods 0.000 claims description 9
- 230000009286 beneficial effect Effects 0.000 claims description 8
- 238000005336 cracking Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 4
- 239000011575 calcium Substances 0.000 claims description 4
- 229910052791 calcium Inorganic materials 0.000 claims description 4
- 239000011777 magnesium Substances 0.000 claims description 4
- 229910052749 magnesium Inorganic materials 0.000 claims description 4
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 4
- 239000011591 potassium Substances 0.000 claims description 4
- 229910052700 potassium Inorganic materials 0.000 claims description 4
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 4
- 239000011734 sodium Substances 0.000 claims description 4
- 229910052708 sodium Inorganic materials 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 239000005995 Aluminium silicate Substances 0.000 claims description 3
- 235000012211 aluminium silicate Nutrition 0.000 claims description 3
- INJRKJPEYSAMPD-UHFFFAOYSA-N aluminum;silicic acid;hydrate Chemical compound O.[Al].[Al].O[Si](O)(O)O INJRKJPEYSAMPD-UHFFFAOYSA-N 0.000 claims description 3
- 229910001570 bauxite Inorganic materials 0.000 claims description 3
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052850 kyanite Inorganic materials 0.000 claims description 3
- 239000010443 kyanite Substances 0.000 claims description 3
- 229910052863 mullite Inorganic materials 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 239000010453 quartz Substances 0.000 claims description 3
- 230000035939 shock Effects 0.000 claims description 3
- 229910052596 spinel Inorganic materials 0.000 claims description 3
- 239000011029 spinel Substances 0.000 claims description 3
- 235000013619 trace mineral Nutrition 0.000 claims description 3
- 239000011573 trace mineral Substances 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims description 2
- 241001122767 Theaceae Species 0.000 abstract description 34
- 239000000047 product Substances 0.000 description 62
- 239000000463 material Substances 0.000 description 16
- 239000011449 brick Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000012535 impurity Substances 0.000 description 3
- 239000012466 permeate Substances 0.000 description 3
- 239000012798 spherical particle Substances 0.000 description 3
- 241000108664 Nitrobacteria Species 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000000748 compression moulding Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000012258 stirred mixture Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000012258 culturing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
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- 230000001546 nitrifying effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47G—HOUSEHOLD OR TABLE EQUIPMENT
- A47G23/00—Other table equipment
- A47G23/06—Serving trays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/02—Loose filtering material, e.g. loose fibres
- B01D39/06—Inorganic material, e.g. asbestos fibres, glass beads or fibres
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- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/04—Clay; Kaolin
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/14—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silica
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/16—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/16—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay
- C04B35/18—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silicates other than clay rich in aluminium oxide
- C04B35/185—Mullite 3Al2O3-2SiO2
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- C04B35/44—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminates
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- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/349—Clays, e.g. bentonites, smectites such as montmorillonite, vermiculites or kaolines, e.g. illite, talc or sepiolite
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- Filtering Materials (AREA)
Abstract
The invention discloses a preparation method of spherical ceramic particles for filtering water and a method for manufacturing a filtering water device by using the spherical ceramic particles, and relates to the technical field of ceramic filtering water devices. The preparation method of the spherical ceramic particles comprises the following steps: the first step is as follows: selecting high-quality ore; the second step is that: crushing the ore; the third step: grinding; the fourth step: granulating; the fifth step; and (4) sintering at a high temperature. The preparation method of the device for preparing the filtered water by utilizing the spherical ceramic particles comprises the following steps: the method comprises the following steps: screening spherical ceramic particles; step two: mixing the raw materials; step three: standing; step four: molding; pouring the mixture into a metal mold for molding; step five: pressing and fixing; step six: drying; step seven: and (4) sintering at a high temperature. The invention solves the problems of slow and blocked filtering and the like caused by adopting common ore powder particles in the traditional filtering water device, and improves the filtering efficiency and the product quality of the filtering water devices such as tea leaks, tea trays and the like.
Description
Technical Field
The invention belongs to the technical field of ceramic water filtering devices, and relates to a preparation method of spherical ceramic particles for water filtering and a method for preparing a water filtering device by using the same.
Background
The existing water filtering devices on the market include: the water purification filter core, the brick that permeates water, tea hourglass, tea tray etc. adopt the direct broken powder granule of irregular ore to make mostly and form, and ore powder granule is not of uniform size, and the space between the ore powder granule is inhomogeneous, blocks up when easily causing to leak, leaks slowly phenomenon. And the chemical components of the ore powder are unstable, so that when the ceramic granule is used for tea leakage, the ceramic granule is very necessary to be prepared by selecting the ore powder beneficial to human bodies as a necessary tool for drinking tea.
Disclosure of Invention
The invention provides a method for preparing spherical ceramic particles for filtering water and a method for preparing a filtering water device by using the same, aiming at overcoming the defects of the prior art, solving the problems of slow filtering water, blockage and the like caused by adopting common ore powder particles in the traditional filtering water device, and improving the filtering efficiency and the product quality of the filtering water devices such as a tea strainer, a tea tray and the like when the spherical ceramic particles are used for the tea strainer and the tea tray. The invention is realized by the following technical scheme: the invention provides a method for preparing spherical ceramic particles for filtering water and a method for preparing a filtering water device by using the spherical ceramic particles, which comprises a preparation method of the spherical ceramic particles and is characterized in that: the preparation method of the spherical ceramic particles at least comprises the following steps:
the first step is as follows: selecting high-quality ore; detecting the ores by using a special chemical component analyzer for the ores, and screening the ores which contain trace elements such as calcium, magnesium, potassium and sodium beneficial to human bodies and contain more silicon oxide and aluminum oxide and have high strength and good stability;
the second step is that: crushing the ore; crushing the ore into particles of 1-5mm by a crusher;
the third step: grinding; grinding the granules in the second step for 8-15 hours by using a ball mill to obtain fine powder of 10-20 microns;
the fourth step: granulating; preparing the fine powder into spherical ceramic particles with the diameter of 50-1500 microns by using a granulator;
the fifth step; sintering at high temperature; the spherical ceramic particles are put into a high-temperature kiln to be sintered for 5 hours at the high temperature of 1300-1600 ℃ to be vitrified and hardened, and the spherical ceramic particles with smooth surfaces and round particle shapes with the diameters of 50-1500 microns are obtained.
Preferably, the ore is selected from bauxite, mullite, quartz, spinel, kyanite, kaolin and the like.
Preferably, the fifth step of high-temperature sintering comprises the following specific steps: putting the spherical ceramic particles prepared in the fourth step into a high-temperature kiln, setting a temperature rise curve in the kiln, raising the temperature from normal temperature to 200 ℃ within 30 minutes, and then preserving the heat for 10 minutes, so that the ceramic particles are slowly heated to avoid the phenomenon of fracture caused by heat shock; then keeping the temperature to be 500 ℃ slowly within 50 minutes, and keeping the temperature for 10 minutes; then raising the temperature from 500 ℃ to 800 ℃ within 100 minutes, and preserving the temperature for 10 minutes; then the temperature is increased to 1300 ℃ within 120 minutes, and the temperature is kept for 10 minutes; finally, the temperature is increased to 1550 ℃ within 90 minutes, and the temperature is kept for 80 minutes; the high-temperature heat preservation time in the high-temperature sintering process is sufficient, and the ceramic product can be sintered, burnt through and vitrified and hardened.
Preferably, the voids within the spherical ceramic particles are between 0.2 and 0.6 microns.
The preparation method of the device for preparing the filtered water by utilizing the spherical ceramic particles is characterized by comprising the following steps of: the method comprises the following steps:
the method comprises the following steps: screening spherical ceramic particles; screening the spherical ceramic particles according to different mesh numbers of the spherical ceramic particles to screen out the spherical ceramic particles with the same mesh number range;
step two: mixing the raw materials; mixing the spherical ceramic particles, the inorganic binder, the clay and the stabilizer in a ratio of 7.5: 1: 0.5 by using a sand mixer;
step three: standing; the mixture was allowed to stand for 5 minutes;
step four: molding; pouring the mixture into a metal mold for molding, wherein the metal mold comprises a rectangle, a circle, a bowl and a disc;
step five: pressing and fixing; the mixture in the metal die is pressed and formed at high pressure by a 50-100 ton-grade press;
step six: drying; putting the formed product into a drying box to be dried for 2 hours at the temperature of 300 ℃;
step seven: sintering at high temperature; and (3) putting the dried product into a kiln to perform high-temperature sintering at the temperature not higher than 1300 ℃, wherein the sintering time is 10.5 hours, and the cooling time is 12 hours, so as to obtain the product of the water filtering device.
Preferably, the method for mixing the raw materials in the step two comprises the following steps: firstly, putting spherical ceramic particles into a sand mixer, adding an inorganic binder, stirring for 10 minutes, uniformly and fully wrapping the inorganic binder on the spherical ceramic particles, then adding clay, stirring for 20 minutes, finally adding a stabilizer, stirring again, keeping the water content of the mixture to be 3-5%, and keeping the stirred mixture loose and fluid; the stirring speed of the sand mixer is kept above 1200 revolutions per minute.
Preferably, the specific method for high-temperature sintering in the seventh step comprises the following steps: putting the dried product into a shuttle kiln, adjusting a temperature rise curve, slowly raising the temperature to 300 ℃, and then preserving the heat for a certain time, so that the ceramic surface is slowly heated to avoid the expansion and cracking of the ceramic product; then, the temperature is increased to 550 ℃, and the temperature is preserved for a certain time; then the temperature is increased to 900 ℃, and the temperature is kept for a certain time; finally, the temperature is raised to 1300 ℃, the heat preservation is carried out for a certain time, the high-temperature heat preservation time is sufficient, the ceramic product can be sintered and burnt completely, the strength of the product is higher, and the quality is more stable; then the temperature of the kiln is reduced to 12 hours and slowly reduced to the normal temperature.
Preferably, the pore size of the micropores between the adjacent spherical ceramic particles inside the water filtering device is between 20 and 100 microns.
The invention has the beneficial effects that:
the invention screens the ore by screening the components, screens the ore which contains more microelements, such as calcium, magnesium, potassium, sodium, etc. beneficial to human body and more contents of silicon oxide and aluminum oxide and has high strength and good stability; the raw ore is pollution-free and beneficial to human body; then crushing, grinding, granulating and sintering at high temperature to finally prepare spherical micro-dense ceramic particles with consistent sizes; the spherical ceramic particles are mixed with other raw materials and poured into a mould, and then are pressed and molded, and finally are dried and sintered at high temperature to prepare the device for filtering water such as tea filters, tea trays and the like. When the brick that is used for making to permeate water uses, it is fast to permeate water, can not cause surface gathered water, prevention flood disaster: when the spherical particle is used for manufacturing the water filtering material for the aquarium, the filtered water is clean and thorough without blockage, the specific surface area of the spherical particle is large, more nitrobacteria can be cultured, and the water cannot deteriorate.
The whole manufacturing process of the invention only has physical change and no chemical reaction.
The spherical ceramic particles have smooth surfaces after being pressed, and gaps invisible to naked eyes exist among the spherical ceramic particles in the water filtering device made of the spherical ceramic particles. The tea strainer device made of the material through pressing is easy to form and has high strength.
The method for preparing the spherical ceramic particles and the method for manufacturing the water filtering device by using the spherical ceramic particles are simple, and the manufactured water filtering device has the characteristics of uniform water leakage and quick water leakage and has obvious beneficial effects; the problems of water accumulation on the surface of the device such as tea leakage of filtered water and slow water leakage are solved, the surface of the tea table is easy to keep dry in time and has the effect of easy cleaning, and the problem of peculiar smell caused by humidity and emission due to long-term water immersion of the table top is solved.
Detailed Description
The present invention will be described in detail with reference to the following embodiments in order to make the aforementioned objects, features and advantages of the invention more comprehensible. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
The preparation method of the spherical ceramic particles for water filtration comprises the following steps:
the first step is as follows: selecting high-quality ore; detecting the ores by using a special chemical component analyzer for the ores, and screening the ores which contain trace elements such as calcium, magnesium, potassium and sodium beneficial to human bodies and contain more silicon oxide and aluminum oxide and have high strength and good stability; in the embodiment, the ore is selected from bauxite, mullite, quartz stone, spinel, kyanite or kaolin;
the second step is that: crushing the ore; crushing the ores into particles with the particle size of 1-5mm by a crusher, then blending, homogenizing and mixing;
the third step: grinding; grinding the granules in the second step for 8-15 hours by using a ball mill to obtain fine powder of 10-20 microns;
the fourth step: granulating; preparing the fine powder into spherical ceramic particles with the diameter of 50-1500 microns by using a granulator;
the fifth step; sintering at high temperature; the spherical ceramic particles are put into a high-temperature kiln to be sintered for 5 hours at the high temperature of 1300-1600 ℃ to be vitrified and hardened, and the spherical ceramic particles with smooth surfaces and round particle shapes with the diameters of 50-1500 microns are obtained. Spherical ceramic particles of 50-1500 microns in diameter can also be expressed by mesh number, with 50-1500 microns in diameter being equivalent to 10-200 mesh number.
The fifth step of high-temperature sintering comprises the following specific steps: putting the spherical ceramic particles prepared in the fourth step into a high-temperature kiln, setting a temperature rise curve in the kiln, raising the temperature from normal temperature to 200 ℃ within 30 minutes, and then preserving the heat for 10 minutes, so that the ceramic particles are slowly heated to avoid the phenomenon of fracture caused by heat shock; then keeping the temperature to be 500 ℃ slowly within 50 minutes, and keeping the temperature for 10 minutes; then raising the temperature from 500 ℃ to 800 ℃ within 100 minutes, and preserving the temperature for 10 minutes; then the temperature is increased to 1300 ℃ within 120 minutes, and the temperature is kept for 10 minutes; finally, the temperature is increased to 1580 ℃ within 90 minutes, and the temperature is kept for 80 minutes; the high-temperature heat preservation time in the high-temperature sintering process is sufficient, and the ceramic product can be sintered, burnt through and vitrified and hardened.
The internal gap of the spherical ceramic particle is 0.2-0.6 micron, so that the particle has the performance of adsorbing fine impurities in water; the sphericity and roundness of the particles are greater than 90%, and the angular coefficient is as follows: 1.15.
the prepared spherical ceramic particles can be used as raw materials to be matched with other materials to prepare various water filtering devices, and the water filtering devices prepared from the spherical ceramic particles have better stability than the existing materials, and have high water filtering speed and high water filtering efficiency.
The preparation method of the device for preparing the filtered water by utilizing the spherical ceramic particles is characterized by comprising the following steps of: the method comprises the following steps:
the method comprises the following steps: screening spherical ceramic particles; screening the spherical ceramic particles according to different mesh numbers of the spherical ceramic particles to screen out the spherical ceramic particles with the same mesh number range; the mesh range of the spherical ceramic particles is 10-200 meshes, and the spherical ceramic particles are divided into a plurality of different specifications for standby according to the mesh range of the spherical ceramic particles, wherein the specifications are as follows: 10/20 mesh, 20/40 mesh, 30/50 mesh, 40/70 mesh, 50/100 mesh, 70/140 mesh and 100/200 mesh; selecting spherical ceramic particles with different specifications and meshes according to different requirements and different models of the water filtering device to be manufactured;
step two: mixing the raw materials; mixing the spherical ceramic particles, the inorganic binder, the clay and the stabilizer in a ratio of 7.5: 1: 0.5 by using a sand mixer; the method for mixing the raw materials comprises the following steps: the preparation method comprises the steps of putting spherical ceramic particles into a sand mixer, adding an inorganic binder, stirring for 10 minutes, uniformly and fully wrapping the inorganic binder on the spherical ceramic particles, adding clay, stirring for 20 minutes, adding a stabilizer, stirring again, keeping the water content of the mixture during stirring to be 3-5%, and keeping the stirred mixture loose and fluid. The stirring speed of the sand mixer is kept above 1200 revolutions per minute;
step three: standing; the mixture was allowed to stand for 5 minutes;
step four: molding; pouring the mixture into a metal mold for molding, wherein the metal mold comprises a rectangle, a circle, a bowl and a disc;
step five: pressing and fixing; the mixture in the metal die is pressed and formed at high pressure by a 50-100 ton-grade press;
step six: drying; putting the molded product into a drying box, and drying for 2 hours at the temperature of 300 ℃ until the moisture in the product is completely volatilized;
step seven: sintering at high temperature; and (3) putting the dried product into a kiln to perform high-temperature sintering at the temperature not higher than 1300 ℃, wherein the sintering time is 10.5 hours, and the cooling time is 12 hours, so as to obtain the product of the water filtering device.
The pore value of micropores between adjacent spherical ceramic particles in the water filtering device is between 20 and 100 microns.
After the spherical ceramic particles are sintered at the high temperature of 1300 ℃ and 1600 ℃, the material can generate crystal phase change, the surface can be completely vitrified, the surface is in a state similar to the surface of glass, the surface is smooth and free of dust, and after the spherical ceramic particles are made into devices for filtering water such as tea tables, tea leaks and the like in various shapes, the porosity among the spherical ceramic particles is micro-pores between 20 and 100 micrometers, so that the surfaces of the devices for filtering water such as the made tea tables, the made tea leaks and the like are very flat and have very good water permeability, the filtering is clean, the water quality is softened, the water leakage is stable, the blockage is avoided, and the water filtering efficiency is high.
Since the surface of the spherical ceramic particle material is smooth after the first sintering and the flowability of the spherical particles is good, the spherical ceramic particle material is easy to fill and mold when entering a mold for molding. The resulting spherical ceramic particles had a mohs hardness of 7 and a very high hardness, so that the spherical ceramic particles were not crushed during high-pressure molding in a die with a press.
The spherical ceramic particles are matched with other raw materials and are formed by a die and sintered at high temperature to obtain the finished tea table tea strainer, and the finished product made by the spherical ceramic particles through high-temperature sintering twice is firm and durable, has very good thermal stability, is not afraid of rapid cooling and rapid heating, is not pulverized, is not cracked, and is safe and environment-friendly.
Example of making a tea strainer: selecting spherical ceramic particles of 40/70 meshes, and mixing the spherical ceramic particles, the inorganic binder, the clay and the stabilizer in a ratio of 7.5: 1: 0.5 by using a sand mixer; the mixture was allowed to stand for 5 minutes; pouring the mixture into a metal mold of the tea strainer for molding; carrying out high-pressure press forming on the mixture in the metal die by using a 100-ton-grade press; putting the molded product into a drying box, and drying for 2 hours at the temperature of 300 ℃ until the moisture in the product is completely volatilized; and the dried product is put into a shuttle, so that the product has higher strength and more stable quality. Finally, the temperature of the kiln is reduced to about 12 hours and slowly reduced to normal temperature, and the product is discharged to obtain a tea strainer product; the pore value of micropores between adjacent spherical ceramic particles in the tea strainer product is between 20 and 50 microns.
Example of making a tea table: the tea table is generally plate-shaped, and two sides are relatively level and smooth, so select 50/100 mesh number model spherical ceramic particles for use, use the advantage of finer granule preparation tea table to be that the surface is more level and smooth, and goods bulk strength is also higher, can make the great product of area, can make enough thin moreover, and the effect of leaking is better like this, also more pleasing to the eye. Mixing the spherical ceramic particles, the inorganic binder, the clay and the stabilizer in a ratio of 7: 1.3: 1.2: 0.5 by using a sand mixer; standing the mixed material for 5 minutes; pouring the mixture into a metal mold of a tea table for molding; carrying out high-pressure pressing molding on the mixed material in the metal die by using a 150-ton-grade press; putting the molded product into a drying box, and drying for 180 minutes at the temperature of 300 ℃ until the moisture in the product is completely volatilized; the dried product is placed in a shuttle kiln, a temperature rise curve is adjusted, the temperature is raised to 300 ℃ within 70 minutes and then is preserved for 30 minutes, so that the ceramic surface is slowly heated to avoid the expansion and cracking of the ceramic product, the temperature is raised to 550 ℃ within 75 minutes, the temperature is preserved for 15 minutes, then the temperature is raised to 900 ℃ within 120 minutes, the temperature is preserved for 15 minutes, then the temperature is raised to 1300 ℃ within 150 minutes, the temperature is preserved for 130 minutes, the high-temperature heat preservation time is sufficient, the ceramic product can be sintered and burnt thoroughly, the strength of the product is higher, and the quality is more stable. Finally, when the temperature of the kiln is reduced to about 12 hours and slowly reduced to the normal temperature, discharging the product to obtain a tea table product; the pore value of micropores between adjacent spherical ceramic particles in the tea table product is between 20 and 30 microns.
Examples of water purification and filtration devices were made: spherical ceramic particles among 70/140 meshes are selected and made into shapes of a barrel, a funnel, a sheet and the like, the finer particles are used for making, the particle gaps are smaller, the effects of filtering out tiny impurities in water and softening water quality can be effectively achieved, and the drinking water is safer and healthier. The product has smooth surface and higher strength, and can not fall off slag. And can be made thin enough, so the water leakage effect is better and the appearance is more beautiful. Mixing the spherical ceramic particles, the inorganic binder, the clay and the stabilizer in a ratio of 8: 0.8: 0.7: 0.5 by using a sand mixer; standing the mixed material for 5 minutes; pouring the mixture into a metal mold of a tea table for molding; carrying out high-pressure compression molding on the mixed material in the metal die by using a 200-ton-grade press machine; putting the molded product into a drying box, and drying at the temperature of 300 ℃ for 120 minutes until the moisture in the product is completely volatilized; and (3) cooling the dried product to normal temperature, then placing the dried product into a shuttle kiln, adjusting a temperature rise curve, raising the temperature to 300 ℃ in 65 minutes, and then preserving heat for 30 minutes, so that the ceramic surface is slowly heated to avoid the expansion and cracking of the ceramic product, then raising the temperature to 550 ℃ in 70 minutes, preserving heat for 10 minutes, then raising the temperature to 900 ℃ in 120 minutes, preserving heat for 10 minutes, then raising the temperature to 1300 ℃ in 120 minutes, preserving heat for 130 minutes, fully preserving heat at high temperature, sintering and completely burning the ceramic product, and ensuring that the product has higher strength and more stable quality. Finally, the temperature of the kiln is reduced to about 12 hours and slowly reduced to normal temperature, and the product is discharged to obtain a water filtering device product; the pores between adjacent spherical ceramic particles within the article have a pore value between 10 and 20 microns.
The embodiment of the material for producing the culture and water filtration for the aquarium comprises the following steps: spherical ceramic particles with 30/50 meshes and 40/70 meshes as main meshes are selected to be made into cylindrical, elliptical, rectangular, triangular and other products, so that impurities in water can be effectively filtered, the water quality is softened, and the water is clear and does not deteriorate under the action of culturing nitrobacteria. The particle clearance is moderate, the product surface is smooth, the strength is higher, and the slag can not fall off. The specific surface area of the product is large enough, and more nitrifying bacteria are cultured. Thus, the water leakage effect is better and the appearance is more beautiful. Mixing the spherical ceramic particles, the inorganic binder, the clay and the stabilizer in a ratio of 8.5: 0.4: 0.6: 0.5 by using a sand mixer; standing the mixed material for 5 minutes; pouring the mixture into a metal mold of a tea table for molding; carrying out high-pressure compression molding on the mixed material in the metal die by using a 50-ton-grade press machine; putting the molded product into a drying box, and drying at the temperature of 300 ℃ for 120 minutes until the moisture in the product is completely volatilized; lowering the temperature of the dried product to normal temperature, putting the dried product into a shuttle kiln, adjusting a temperature rise curve, raising the temperature to 300 ℃ in 50 minutes, and then preserving heat for 5 minutes, so that the ceramic surface is slowly heated to avoid the expansion and cracking of the ceramic product, then raising the temperature to 550 ℃ in 60 minutes, preserving heat for 5 minutes, then raising the temperature to 900 ℃ in 120 minutes, preserving heat for 5 minutes, then raising the temperature to 1300 ℃ in 120 minutes, preserving heat for 120 minutes, fully preserving heat at high temperature, sintering and completely burning the ceramic product, and having higher product strength and more stable quality. Finally, the temperature of the kiln is reduced to about 12 hours and slowly reduced to normal temperature, and the product is discharged to obtain a water filtering device product; the pores between adjacent spherical ceramic particles within the article have a pore value between 20 and 50 microns.
Manufacturing a water permeable brick embodiment: the permeable brick is used for paving a pavement, is generally plate-shaped, is rectangular, square or round with the size of 100-300MM, has a relatively flat surface, but has a rough surface to increase friction force and play a role in skid resistance. Therefore, the spherical ceramic particles with 10/20 and 20/40 meshes are selected, the particle gaps are large, the surface is rough, the anti-skidding and wear-resisting effects are achieved, the water permeation is rapid, and the problem of water accumulation after raining is effectively solved. The brick with larger size can be manufactured, and various colors can be manufactured to increase the aesthetic degree. Mixing the spherical ceramic particles, the inorganic binder, the clay and the stabilizer in a ratio of 7: 1.3: 1.2: 0.5 by using a sand mixer; standing the mixed material for 5 minutes; pouring the mixture into a metal mold of a tea table for molding; carrying out high-pressure pressing molding on the mixed material in the metal die by using a 150-ton-grade press; putting the molded product into a drying box, and drying for 180 minutes at the temperature of 300 ℃ until the moisture in the product is completely volatilized; the dried product is placed in a shuttle kiln, a temperature rise curve is adjusted, the temperature is raised to 300 ℃ within 70 minutes and then is preserved for 30 minutes, so that the ceramic surface is slowly heated to avoid the expansion and cracking of the ceramic product, the temperature is raised to 550 ℃ within 75 minutes, the temperature is preserved for 15 minutes, then the temperature is raised to 900 ℃ within 120 minutes, the temperature is preserved for 15 minutes, then the temperature is raised to 1300 ℃ within 150 minutes, the temperature is preserved for 130 minutes, the high-temperature heat preservation time is sufficient, the ceramic product can be sintered and burnt thoroughly, the strength of the product is higher, and the quality is more stable. Finally, the temperature of the kiln is reduced to about 12 hours and slowly reduced to normal temperature, and the product is discharged from the kiln to obtain a finished product of the water permeable brick; the pores between adjacent spherical ceramic particles within the article have a pore value of between 200 microns.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.
Claims (8)
1. The preparation method of the spherical ceramic particles for water filtration is characterized by comprising the following steps: the preparation method of the spherical ceramic particles at least comprises the following steps:
the first step is as follows: selecting high-quality ore; detecting the ores by using a special chemical component analyzer for the ores, and screening the ores which contain trace elements such as calcium, magnesium, potassium and sodium beneficial to human bodies and contain more silicon oxide and aluminum oxide and have high strength and good stability;
the second step is that: crushing the ore; crushing the ore into particles of 1-5mm by a crusher;
the third step: grinding; grinding the granules in the second step for 8-15 hours by using a ball mill to obtain fine powder of 10-20 microns;
the fourth step: granulating; preparing the fine powder into spherical ceramic particles with the diameter of 50-1500 microns by using a granulator;
the fifth step; sintering at high temperature; the spherical ceramic particles are put into a high-temperature kiln to be sintered at the high temperature of 1300-1600 ℃ to be vitrified and hardened, and the spherical ceramic particles with smooth surfaces and round particle shapes with the diameters of 50-1500 microns are obtained.
2. The method for preparing spherical ceramic particles according to claim 1, wherein: the ore is selected from bauxite, mullite, quartz stone, spinel, kyanite or kaolin.
3. The method for preparing spherical ceramic particles according to claim 1, wherein: the fifth step of high-temperature sintering comprises the following specific steps: putting the spherical ceramic particles prepared in the fourth step into a high-temperature kiln, setting a temperature rise curve in the kiln, raising the temperature from normal temperature to 200 ℃ within 30 minutes, and then preserving the heat for 10 minutes, so that the ceramic particles are slowly heated to avoid the phenomenon of fracture caused by heat shock; then keeping the temperature to be 500 ℃ slowly within 50 minutes, and keeping the temperature for 10 minutes; then raising the temperature from 500 ℃ to 800 ℃ within 100 minutes, and preserving the temperature for 10 minutes; then the temperature is increased to 1300 ℃ within 120 minutes, and the temperature is kept for 10 minutes; finally, the temperature is increased to 1550 ℃ within 90 minutes, and the temperature is kept for 80 minutes; the high-temperature heat preservation time in the high-temperature sintering process is sufficient, and the ceramic product can be sintered, burnt through and vitrified and hardened.
4. The method for preparing spherical ceramic particles according to claim 1, wherein: the internal gap of the spherical ceramic particle is 0.2-0.6 micron; the sphericity and roundness of the spherical ceramic particles are greater than 90%, and the angular coefficient is as follows: 1.15.
5. the preparation method of the device for preparing the filtered water by utilizing the spherical ceramic particles is characterized by comprising the following steps of: the method comprises the following steps:
the method comprises the following steps: screening spherical ceramic particles; screening the spherical ceramic particles according to different mesh numbers of the spherical ceramic particles to screen out the spherical ceramic particles with the same mesh number range;
step two: mixing the raw materials; mixing the spherical ceramic particles, the inorganic binder, the clay and the stabilizer in a ratio of 7.5: 1: 0.5 by using a sand mixer;
step three: standing; the mixture was allowed to stand for 5 minutes;
step four: molding; pouring the mixture into a metal mold for molding, wherein the metal mold comprises a rectangle, a circle, a bowl and a disc;
step five: pressing and fixing; performing high-pressure press molding on the mixture in the metal mold by using a 100-200 ton-grade press;
step six: drying; putting the formed product into a drying box to be dried for 2 hours at the temperature of 300 ℃;
step seven: sintering at high temperature; and (3) putting the dried product into a kiln to perform high-temperature sintering at the temperature not higher than 1300 ℃, wherein the sintering time is 10.5 hours, and the cooling time is 12 hours, so as to obtain the product of the water filtering device.
6. The method for manufacturing a device for filtering water using spherical ceramic particles according to claim 5, wherein: the method for mixing the raw materials in the step two comprises the following steps: firstly, putting spherical ceramic particles into a sand mixer, adding an inorganic binder, stirring for 10 minutes, uniformly and fully wrapping the inorganic binder on the spherical ceramic particles, then adding clay, stirring for 20 minutes, finally adding a stabilizer, stirring again, keeping the water content of the mixture during stirring to be 3-5%, and keeping the mixture after stirring loose and fluid; the stirring speed of the sand mixer is kept above 1200 revolutions per minute.
7. The method for manufacturing a device for filtering water using spherical ceramic particles according to claim 5, wherein: the specific method for high-temperature sintering in the seventh step comprises the following steps: putting the dried product into a shuttle kiln, adjusting a temperature rise curve, slowly raising the temperature to 300 ℃, and then preserving the heat for a certain time, so that the ceramic surface is slowly heated to avoid the expansion and cracking of the ceramic product; then, the temperature is increased to 550 ℃, and the temperature is preserved for a certain time; then the temperature is increased to 900 ℃, and the temperature is kept for a certain time; finally, the temperature is raised to 1300 ℃, the heat preservation is carried out for a certain time, the high-temperature heat preservation time is sufficient, the ceramic product can be sintered and burnt completely, the strength of the product is higher, and the quality is more stable; then the temperature of the kiln is reduced to 12 hours and slowly reduced to the normal temperature.
8. The method for manufacturing a device for filtering water using spherical ceramic particles according to claim 5, wherein: the pore size of the micropores between adjacent spherical ceramic particles inside the filtered water device product is between 20 and 100 microns.
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Application publication date: 20220114 |