CN113210248B - Ceramic powder balling method and device - Google Patents
Ceramic powder balling method and device Download PDFInfo
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- CN113210248B CN113210248B CN202110499827.1A CN202110499827A CN113210248B CN 113210248 B CN113210248 B CN 113210248B CN 202110499827 A CN202110499827 A CN 202110499827A CN 113210248 B CN113210248 B CN 113210248B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B4/00—Separating solids from solids by subjecting their mixture to gas currents
- B07B4/08—Separating solids from solids by subjecting their mixture to gas currents while the mixtures are supported by sieves, screens, or like mechanical elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
- B07B11/02—Arrangement of air or material conditioning accessories
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
- B07B9/02—Combinations of similar or different apparatus for separating solids from solids using gas currents
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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
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- 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
- C04B35/62605—Treating the starting powders individually or as mixtures
Abstract
A ceramic powder balling method and apparatus, let the ceramic powder in the feed cylinder flow into the quantitative feeding device evenly first, after the quantity of ceramic powder flowing into the quantitative feeding device meets and screens the requirement, open the quantitative feeding device and let the ceramic powder drop into screening plant, and start the vibrating device and let the screening plant produce the vibration, screen the ceramic powder while producing the vibration in the screening plant; the ceramic powder after screening falls into a sugar-coating pot, the ceramic powder in the sugar-coating pot is stirred by a stirring device while the sugar-coating pot rotates, and glue is added into the sugar-coating pot while stirring, so that the ceramic powder in the sugar-coating pot is stirred into spherical ceramic particles. The invention can automatically and quantitatively drop the ceramic powder into the screening device for screening, and then repeatedly swing the ceramic powder in the sugar coating pan for uniform stirring, thereby automatically preparing spherical ceramic particles, greatly reducing the labor intensity of workers and saving the labor cost.
Description
Technical Field
The invention relates to the field of powder processing, in particular to a ceramic powder balling method and a ceramic powder balling device.
Background
During the process that ceramic powder enters the storage bin from the charging barrel, the conditions of piling, balling and the like easily occur at the position of the ceramic powder in the charging barrel. The reason is that: in order to ensure that the ceramic powder smoothly flows to the storage bin from the charging barrel, a vibration device is arranged to ensure that the charging barrel continuously generates tiny vibration, but the vibration also ensures that the inner surface of the charging barrel continuously generates friction with the ceramic powder, so that the inner surface of the charging barrel and part of the ceramic powder have static electricity, and the static electricity can ensure that the ceramic powder is piled up and agglomerated. In addition, after ceramic powder flows out of the charging barrel, ceramic powder with different diameters needs to be screened, and continuous screening is not usually performed in order to save electricity. But the ceramic powder is screened in batches, that is, quantitatively screened. The quantitative screening is an intermittent screening mode, so that the processing cost can be saved. In addition, in order to allow the ceramic powder to smoothly pass through the fine mesh of the screen, the sieving device needs to be vibrated finely and rapidly. However, such vibration tends to cause static electricity to be applied to the ceramic powder in the sieving device, so that the ceramic powder is accumulated and agglomerated, and the ceramic powder is prevented from passing through the sieve. And ceramic powder need stir ceramic powder after the ceramic powder screening, and the mode of manual stirring is generally adopted in the stirring of ceramic powder at present, and when the manual work was carried out even stirring, mainly lean on staff's experience and lean on eyes to stir while observing. The feeding mode needs continuous stirring by workers, and has the disadvantages of high working labor intensity, tedious work and high labor cost.
The following patents are found to have similarities with the invention through domestic search:
the utility model with the application number of CN 202021021021725.6 and the name of 'a ceramic powder quantitative processing and recycling device' discloses a ceramic powder quantitative processing and recycling device, which comprises a supporting frame, a machine body, a screening mechanism and grinding equipment; the machine body is arranged on the support frame, a treatment cavity is arranged in the machine body, a first feed port communicated with the treatment cavity is arranged at the top of the machine body, a first discharge port communicated with the treatment cavity is arranged at the bottom of the machine body, and a second discharge port communicated with the treatment cavity is arranged at the first side of the machine body; the screening mechanism comprises a first screen, the first screen is arranged between the first feeding hole and the first discharging hole, and the lower end of the first screen is arranged corresponding to the second discharging hole; the grinding equipment is arranged on the support frame, and a second feed inlet is arranged on the grinding equipment and communicated with a second discharge port; pour waste porcelain powder into the treatment intracavity from first discharge gate, the waste porcelain powder up to standard passes first screen cloth and discharges from first discharge gate department, and the waste porcelain powder that can not pass first screen cloth then follow second discharge gate and second feed inlet entering grinding device in continue to process into up to standard ceramic powder can.
The invention with the application number of 201410353801.6 and the name of 'a preparation method of YSZ ceramic powder for plasma spraying' discloses a preparation method of YSZ ceramic powder for plasma spraying, which comprises the following steps: 1. adding yttrium salt and zirconium salt into deionized water according to a certain proportion, and stirring until the yttrium salt and the zirconium salt are completely dissolved to obtain a mixed solution; 2. carrying out coprecipitation treatment, and filtering and drying to obtain a solid mixture; 3. carrying out hydrothermal reaction on the solid mixture to obtain a hydrothermal reaction product; 4. filtering, washing and drying a hydrothermal reaction product, and uniformly mixing the hydrothermal reaction product with deionized water and a binder to obtain slurry; 5. carrying out spray drying treatment to obtain granules; 6. and sintering and screening the granules to obtain YSZ ceramic powder for plasma spraying. The YSZ ceramic powder prepared by the invention is of a full tetragonal structure, has the characteristics of uniform distribution of yttrium oxide, high solid solution alloying of yttrium oxide and zirconium oxide and the like, and has the advantages of simple equipment in the process, no high temperature and mechanical crushing in the whole production process and low production cost.
Although patent No. CN202021021725.6 also relates to the sieving of ceramic powder, the sieving device does not adopt an ultrasonic oscillation mechanism and a vibration hammer to sieve the ceramic powder in the sieve smoothly. The ultrasonic vibration mechanism can ensure that ceramic powder with tiny particles can pass through the screen more smoothly, so that the screening can be carried out more smoothly. There is also a process for sieving ceramic powder in patent No. 201410353801.6, but the sieving in this patent is used for preparing ceramic powder, and the sieving in the present invention is used for preparing the ceramic powder for subsequent stirring, and the device and sieving functions adopted in the sieving process are different.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: how to smoothly carry out quantitative screening on ceramic powder in a feeding barrel and then fully stirring to prepare spherical ceramic particles.
In order to solve the problems, the technical scheme provided by the invention is as follows: a ceramic powder balling method, let the ceramic powder in the feed cylinder flow into the quantitative charging device evenly first, after the quantity of ceramic powder flowing into the quantitative charging device meets and sieves the requirement, open the quantitative charging device and let the ceramic powder drop to the sieving mechanism, and start the vibrating mechanism and let the sieving mechanism produce the vibration, sieve the ceramic powder while the sieving mechanism produces the vibration; the sieved ceramic powder falls into a sugar coating pot, the ceramic powder in the sugar coating pot is stirred by a stirring device while the sugar coating pot rotates, and glue is added into the sugar coating pot while stirring, so that the ceramic powder in the sugar coating pot is stirred into spherical ceramic particles.
Preferably, a powder fluidizing device is arranged in the charging barrel, the powder fluidizing device comprises a fluidizing plate and a ventilating mechanism, and the fluidizing plate is provided with through meshes; the ventilation mechanism comprises a gas source, a gas-guide tube and a ventilation cavity; be the back taper setting with the fluidization plate in the charging bucket, set up the cavity of ventilating in fluidization plate below, start the air supply and let the air loop through the air duct, ventilate the mesh on cavity and the fluidization plate, make the upper surface of fluidization plate be formed with ascending gas column to with the even blowing off of ceramic powder on the fluidization plate, and ceramic powder advances quantitative feeding device along the even flow of fluidization plate under the effect of gravity.
Preferably, the quantitative feeding device comprises a storage bin and pneumatic valves, the pneumatic valves are arranged at the upper end and the lower end of the storage bin, the pneumatic valve at the upper end of the storage bin is opened, the pneumatic valve at the lower end of the storage bin is closed, and the ceramic powder flowing out of the feeding barrel flows into the storage bin to be stored; and after the quantity of the stored ceramic powder in the storage bin reaches the screening requirement, opening a pneumatic valve at the lower end of the storage bin, and enabling the ceramic powder stored in the storage bin to fall into the screening device, thereby finishing quantitative charging of the ceramic powder.
Preferably, the screening device comprises a screening bucket and a containing bucket, the containing bucket is arranged at the lower end of the screening bucket, a screen is arranged at the bottom of the screening bucket, and the screen covers the upper end of the containing bucket, so that a closed cavity is formed between the screen and the containing bucket; the vibrating device comprises an ultrasonic vibrating mechanism and a vibrating hammer, the vibrating hammer is arranged on two sides of the containing bucket, and the vibrating hammer is started to enable the sieving bucket and the containing bucket to vibrate, so that ceramic powder in the sieving bucket is sieved.
Preferably, the ultrasonic oscillation mechanism comprises an ultrasonic sounder and an air guide tube, the two ends of the air guide tube are respectively connected with the ultrasonic sounder and the air guide tube, the ultrasonic sounder is started, and air in the material sieving barrel and the material containing barrel is made to oscillate, so that the ceramic powder in the material sieving barrel is sieved under the simultaneous action of the ultrasonic oscillation mechanism and the vibration hammer.
Preferably, the material mixing device comprises a swinging device, a servo motor and a sugar-coating pot, wherein the servo motor is started to drive the swinging device to stir in the sugar-coating pot, and the sugar-coating pot is started to rotate while stirring, so that the ceramic powder in the sugar-coating pot is fully stirred.
A ceramic powder balling device is characterized in that a quantitative feeding device is arranged below a feeding barrel, a screening device is arranged below the quantitative feeding device, a vibrating device is connected to the screening device, and a material mixing device and a sugar coating pan are arranged below the screening device; ceramic powder in the feeding barrel firstly enters a quantitative feeding device, then enters a screening device for screening, then enters a sugar-coating pan, is added with glue and is stirred by a stirring device, and therefore the ceramic powder in the sugar-coating pan is stirred into spherical ceramic particles.
Preferably, the powder fluidizing device comprises a fluidizing plate and an air-breather, wherein the charging barrel is internally provided with an inverted cone-shaped fluidizing plate, the fluidizing plate is provided with a through mesh, the air-breather comprises an air source, an air duct and an air-breather cavity, one end of the air duct is connected with the air source, and the other end of the air duct extends into the air-breather cavity; quantitative feeding device includes punishment in advance passageway and pneumatic valve, and pneumatic valve includes cylinder and valve body, and the valve body setting is in one side of cylinder, and punishment in advance passageway upper end and charging bucket bottom intercommunication are provided with two pneumatic valves on the punishment in advance passageway, two pneumatic valves will punishment in advance passageway from last to separating down for passage, feed bin and discharging pipe.
Preferably, the screening device comprises a screening bucket and a containing bucket, the containing bucket is arranged at the lower end of the screening bucket, a screen is arranged at the bottom of the screening bucket, the screen covers the upper end of the containing bucket, and a closed cavity is formed between the screen and the containing bucket; the vibrating device comprises an ultrasonic vibrating mechanism and vibrating hammers, the ultrasonic vibrating mechanism comprises an ultrasonic sounder and an air guide pipe, one end of the air guide pipe extends into the closed cavity, the other end of the air guide pipe is connected with the ultrasonic sounder, and the vibrating hammers are connected to two sides of the charging basket; the bottom plate is arranged below the charging bucket, the spring is arranged between the charging bucket and the bottom plate, the upper end of the spring is connected with the bottom of the charging bucket, and the lower end of the spring is connected with the bottom plate.
Preferably, the material mixing device comprises an adjusting bracket, a swinging rod, a servo motor and a sugar coating machine, wherein the servo motor is arranged on the adjusting bracket, the swinging rod comprises a swinging rod and a claw, one end of the swinging rod is fixedly connected with a rotating shaft of the servo motor, and the other end of the swinging rod is fixedly connected with the claw; the sugar-coating machine comprises a machine base, a connector and a sugar-coating pan, wherein a motor is arranged in the machine base, one end of the connector is fixedly connected with a rotating shaft of the motor, and the other end of the connector is fixedly connected with the bottom of the sugar-coating pan.
The beneficial technical effects of the invention are as follows: a powder fluidizing device is arranged in the charging barrel, so that air passes through a fluidizing plate to generate ascending air flow, thereby dispersing the ceramic powder in the charging barrel and enabling the ceramic powder to uniformly flow into a storage bin; when the ceramic powder in the storage bin reaches a certain amount, opening the pneumatic valve to enable the ceramic powder to quantitatively fall into a screening device for screening; and when the sieve is used for sieving, the ultrasonic generator is opened to enable air in the closed cavity to penetrate through the sieve screen to generate and raise airflow, so that the ceramic powder in the sieving material barrel is dispersed, and the ceramic powder uniformly falls into the containing barrel to finish the previous processing of the ceramic powder. And then the ceramic powder falls into the sugar coating pot from the material containing barrel, and is evenly stirred by repeatedly swinging the material containing barrel in the sugar coating pot, so that the labor intensity of workers is greatly reduced, and the labor cost is saved.
Drawings
FIG. 1 is a perspective view of the overall structure of the first embodiment;
FIG. 2 is a perspective view of the overall structure of the first embodiment;
FIG. 3 is a schematic view showing the installation structure of the quantitative charging device and the sieving device according to the first embodiment;
FIG. 4 is a schematic view of a top view of the charging barrel;
FIG. 5 is a schematic sectional view of the charging barrel;
FIG. 6 is a schematic perspective view of a quantitative charging device;
fig. 7 is a schematic perspective view of a screening device;
FIG. 8 is a perspective view of the mounting structure of the vibratory hammer;
FIG. 9 is a schematic view of the structure of the adjusting bracket, the swinging device and the sugar-coating machine;
FIG. 10 is a schematic view of the configuration of the sugar coating machine;
in the figure: the device comprises a barrel wall 11, a fluidization plate 12, a barrel bottom 13, an inner side wall 14, an aeration cavity 15, a partition rail 16, a material guide pipe 21, a storage bin 22, a material discharge pipe 23, an air guide pipe 4, a material screening barrel 31, a screen 311, a material containing barrel 32, a vibration hammer 33, a connecting rod 34, a support 35, a base plate 51, a spring 52, a material falling pipe 53, a bottom plate 61, a supporting rod 62, a sleeve rod 63, a cross rod 64, a stabilizing rod 65, a servo motor 71, a swinging rod 72, a claw 73, a machine base 81, a connector 82, a sugar coating pan 83, a rail 91, a supporting rod 92, a flat plate 93, a table plate 94 and a support 95.
Detailed Description
The invention is further described with reference to the following examples and figures:
example one
As shown in fig. 1 and 2, the bracket includes a rail 91, a support bar 62, a plate 93, a table 94, and a post 95, the table 94 is disposed on the post 95, the rail 91 and the support bar 62 are disposed on the table 94, and the plate 93 is disposed between the bar and the support bar 62. The bottom of the charging barrel is connected with a quantitative charging device, and a screening device is arranged below the quantitative charging device. The bottom plate 51 of the screening device is fixedly attached to the table 94, the dosing device is passed through the plate 93 and the dosing device is fixedly attached to the plate 93. The down pipe 53 passes through the table 94, and a sugar coating machine is arranged below the down pipe 53. After the two layers of the sieving barrels 31 of the sieving device are sieved, the ceramic powder with small diameter enters the containing barrel 32 and falls into the sugar coating machine along the blanking pipe 53 to be stirred.
As shown in fig. 3, 4 and 5, the charging barrel comprises a barrel wall 11 and a barrel bottom 13, a fluidization plate 12 is arranged in the charging barrel, and through holes are formed between the fluidization plate 12 and the barrel bottom 13. An inner side wall 14 is arranged at the through hole, the outer side of the fluidization plate 12 is fixedly connected with the barrel wall 11, the upper end of the inner side wall 14 is connected with the inner side of the fluidization plate 12, and the lower end of the inner side wall 14 is connected with the inner side of the barrel bottom 13. A plurality of through air holes are uniformly distributed on the fluidization plate 12, the aperture of each air hole is smaller than the diameter of the ceramic powder, and the ceramic powder cannot fall below the fluidization plate 12 from the air holes. An air vent mechanism is arranged below the fluidization plate 12, and air flow generated in the air vent mechanism passes through an air hole on the fluidization plate 12 to form ascending air flow in the charging barrel.
The fluidization plate 12, the barrel wall 11, the barrel bottom 13 and the inner side wall 14 enclose a closed ventilation cavity 15, and the ventilation mechanism comprises a gas source, a gas guide pipe 4 and the ventilation cavity 15. The fluidized charging device also comprises a material guide pipe 21, the upper end of the material guide pipe 21 is connected with the lower end of the inner side wall 14, and the lower end of the material guide pipe 21 is connected with the storage bin 22. One end of the air duct 4 is connected with an air source, and the other end of the air duct 4 passes through the barrel wall 11 and extends into the ventilation cavity 15. A gas source, not shown, which may be an air compressor or other gas supply device, is activated to provide a flow of gas through the gas conduit 4 into the plenum 15. Since only the fluidization plate 12 of the aeration cavity 15 is provided with air holes to allow air to flow out, the activation of the air source can generate a plurality of tiny air columns on the fluidization plate 12. These numerous tiny gas columns blow up the ceramic powder on the fluidization plate 12, thereby dispersing the ceramic powder on the surface of the fluidization plate 12 without agglomeration or balling.
In order to make the ceramic powder on the fluidization plate 12 flow to the inner sidewall 14 and then enter the bin 22 through the inner sidewall 14, the surface of the fluidization plate 12 is a conical surface in this embodiment, that is: the height of the outer side of the fluidization plate 12 is greater than the height of the inner side of the fluidization plate 12. The outer side of the fluidization plate 12 refers to the side against the tub wall 11, and the inner side of the fluidization plate 12 refers to the side against the inner side wall 14. In order to detect the degree of scattering of the ceramic powder, the inner wall 14 is provided with a through hole penetrating the partition 16 formed in the partition 16, and the outer side of the partition 16 abuts against the inner wall 14. The inner side of the partition rail 16 of this embodiment is a star-shaped body, and the outer side is a circular ring, the star-shaped body is fixedly connected with the circular ring, and the circular ring is installed in the inner side wall 14 in an interference fit manner. The partition 16 may also be in a grid shape, and the condition of the ceramic powder piling and balling under the electrostatic action can be well known by observing the condition that the ceramic powder at the partition 16 flows into the inner side wall 14. Thereby controlling the height at which the small gas columns on the fluidization plate 12 can blow up the ceramic powder by adjusting the gas pressure of the gas output from the gas source, and thus adjusting the degree to which the ceramic powder is dispersed on the surface of the fluidization plate 12.
As shown in fig. 1, 3 and 6, the dosing device comprises a feed through channel and a pneumatic valve. The pneumatic valve comprises an air cylinder and a valve body, the air cylinder is connected with the valve body, a valve is arranged in the valve body, and the air cylinder is connected with one end of the air guide pipe 4. The other end of the air duct 4 is connected with an air source which can be an air compressor or other air conveying mechanisms. The material passing channel is provided with two pneumatic valves which divide the material passing channel into a material guide pipe 21, a material bin 22 and a material discharge pipe 23 from top to bottom. Specifically, the method comprises the following steps: the upper end of the material guide pipe 21 is connected with the inner side wall 14, the lower end of the material guide pipe 21 is connected with the upper end of a valve body of a pneumatic valve, and the upper end of the storage bin 22 is connected with the lower end of the valve body of the pneumatic valve; the lower end of the storage bin 22 is connected with the upper end of the valve body of another pneumatic valve, and the upper end of the discharge pipe 23 is connected with the lower end of the valve body of the other pneumatic valve.
When the valve in the valve body of the pneumatic valve is closed, the ceramic powder can be prevented from continuously falling, and the ceramic powder can fall on the valve in the valve body; when the valve in the valve body of the pneumatic valve is opened, the ceramic powder cannot be blocked from further falling. In this example, the ceramic powder quantitative charging process was: the pneumatic valve above is opened, and the pneumatic valve below is closed, so that the ceramic powder in the charging barrel flows into the inner side wall 14 from the fluidization plate 12, sequentially passes through the inner side wall 14, the pneumatic valve above and the storage bin 22, and then falls on the valve in the valve body of the pneumatic valve below, and the ceramic powder is stored in the storage bin 22. In order to facilitate observation of the amount of ceramic powder stored in the cartridge 22, the cartridge 22 may be made of a transparent material. When the amount that ceramic powder was stored reaches the screening requirement in feed bin 22, close the pneumatic valve of top earlier, open the pneumatic valve of below again, let ceramic powder once only all drop in feed bin 22 and sieve in the screening plant of below to accomplish ceramic powder's ration reinforced.
As shown in fig. 2, 3, 7 and 8, the screening device includes two screening buckets 31 and a holding bucket 32, in this embodiment, the two screening buckets 31 are arranged up and down to form a two-layer screening structure. The bottom of the material sieving barrel 31 is provided with a screen 311, the screen 311 is provided with through meshes, and the aperture of the meshes is slightly larger than the diameter of the ceramic powder. The material containing barrel 32 is arranged at the lower end of the material sieving barrel 31, and the screen 311 covers the upper end of the material containing barrel 32, so that a closed cavity is formed between the screen 311 and the material containing barrel 32.
The ultrasonic oscillation mechanism comprises an ultrasonic generator and an air duct 4, one end of the air duct 4 penetrates through the barrel wall 11 of the charging barrel 32 and extends into the closed cavity, and the other end of the air duct 4 is connected with the ultrasonic generator (the ultrasonic generator is not shown in the figure). When the ultrasonic sounder is started, the air in the closed cavity in the material containing barrel 32 generates rapid vibration, and the vibration of the air in the closed cavity can be sequentially transmitted to the two material sieving barrels 31 above, so that the ceramic powder in the two material sieving barrels 31 is dispersed, and the ceramic powder cannot be accumulated and agglomerated.
A base plate 51 is arranged below the bucket 32, the upper end of the down pipe 53 extends into the closed cavity of the screening device, and the lower end of the down pipe 53 penetrates through the base plate 51. A spring 52 is arranged between the charging bucket 32 and the chassis 51, the upper end of the spring 52 is connected with the bottom of the charging bucket 32, and the lower end of the spring 52 is connected with the chassis 51. The springs 52 are uniformly wound around the outer side of the blanking pipe 53, and the number of the springs 52 is eight in the embodiment in order to better buffer the vibration of the vibration hammer 33 on the containing bucket 32 and the screening bucket 31 in all directions.
As shown in fig. 1, 2, 9 and 10, the ceramic powder stirring device comprises a sugar coating machine, an adjusting bracket and a swinging machine. The adjusting bracket comprises a bottom plate 61, a supporting rod 62, a loop bar 63, a cross bar 64 and a stabilizing rod 65, the swinging device comprises a swinging rod 72 and a claw 73, and the sugar-coating machine comprises a machine base 81, a joint 82 and a sugar-coating pan 83. The lower end of the supporting rod 62 is fixedly connected to the bottom plate 61, the loop bar 63 is sleeved on the supporting rod 62, and the cross bar 64 and the loop bar 63 are perpendicular to each other and are fixedly connected. The stabilizing rod 65 is arranged on one side of the supporting rod 62, one end of the stabilizing rod 65 is fixedly connected with the bottom plate 61, and the other end of the stabilizing rod 65 is fixedly connected with the cross rod 64. The supporting rod 62 and the loop bar 63 are provided with mounting holes with equal intervals, and when bolts penetrate through different mounting holes on the supporting rod 62 and the loop bar 63, the position of the loop bar 63 can be limited, and the heights of the loop bar 63 and each part connected with the loop bar 63 can also be adjusted.
The swing rod 72 is a bent metal rod, one end of the swing rod 72 is fixedly connected with a rotating shaft of the servo motor 71, and the other end of the swing rod 72 is fixedly connected with the claw 73. The paw 73 is a double-row paw 73, and the nail teeth of the double-row paw 73 are distributed in a staggered way, so that the paw 73 can stir the ceramic powder in the pan of the sugar machine more fully and uniformly. The rotating shaft of the servo motor 71 rotates for a certain angle and then rotates reversely, so that the swinging claw 73 swings in the pan of the sugar machine in a reciprocating way, and ceramic powder is automatically and continuously stirred.
In this embodiment, the base 81 of the sugar-coating machine is a hollow rectangular parallelepiped, but the front end of the base 81 is protruded forward, so that the front end of the base 81 forms two inclined surfaces, and the inclined surface at the upper end of the two inclined surfaces is provided with an opening. A motor is arranged in the hollow base 81, one end of a connector 82 of the sugar coating machine is fixedly connected with a rotating shaft of the motor, and the other end of the connector 82 is fixedly connected with the bottom of a sugar coating pan 83. The sugar coating pan 83 is in a hollow ellipsoid shape with an opening at the top, one end of the joint 82 connected with the rotating shaft of the motor is in a cylinder shape, and one end of the joint 82 connected with the bottom of the sugar coating pan 83 is in a round table shape. The motor is started to drive the rotating shaft of the motor to drive the connector 82 and the sugar coating pan 83 to rotate together, and the sugar coating pan 83 rotates slowly in one direction in the process of stirring the ceramic powder. The servo motor 71 drives the swinging and stirring device to swing and stir, and the sugar coating pan 83 rotates slowly and continuously, and glue is added into the sugar coating pan while stirring, so that ceramic powder in the sugar coating pan is stirred into spherical ceramic particles.
Obviously, several modifications and variations are possible without departing from the principles of the invention as described.
Claims (5)
1. A ceramic powder balling method is characterized in that ceramic powder in a charging barrel uniformly flows into a quantitative charging device, when the quantity of the ceramic powder flowing into the quantitative charging device meets the screening requirement, the quantitative charging device is opened to drop the ceramic powder into a screening device, a vibrating device is started to vibrate the screening device, and the ceramic powder is screened while the screening device vibrates; the ceramic powder after screening falls into a sugar-coating pot, the ceramic powder in the sugar-coating pot is stirred by a material stirring device while the sugar-coating pot rotates, and glue is added into the sugar-coating pot while stirring, so that the ceramic powder in the sugar-coating pot is stirred into spherical ceramic particles; a powder fluidizing device is arranged in the charging barrel, the powder fluidizing device comprises a fluidizing plate and a ventilating mechanism, and the fluidizing plate is provided with through meshes; the ventilation mechanism comprises a gas source, a gas-guide tube and a ventilation cavity; the method comprises the following steps of arranging a fluidization plate in a charging barrel in an inverted cone shape, arranging a ventilation cavity below the fluidization plate, starting an air source to enable air to sequentially pass through an air guide pipe, the ventilation cavity and meshes on the fluidization plate, forming an upward air column on the upper surface of the fluidization plate, and accordingly uniformly blowing off ceramic powder on the fluidization plate and enabling the ceramic powder to uniformly flow into a quantitative charging device along the fluidization plate under the action of gravity; the screening device comprises a screening bucket and a containing bucket, the containing bucket is arranged at the lower end of the screening bucket, a screen is arranged at the bottom of the screening bucket, and the screen is covered at the upper end of the containing bucket, so that a closed cavity is formed between the screen and the containing bucket; the vibrating device comprises an ultrasonic vibrating mechanism and a vibrating hammer, the vibrating hammer is arranged on two sides of the containing barrel, and the vibrating hammer is started to enable the screening barrel and the containing barrel to vibrate, so that ceramic powder in the screening barrel is screened; the ultrasonic oscillation mechanism comprises an ultrasonic sounder and an air guide tube, two ends of the air guide tube are respectively connected with the ultrasonic sounder and the closed cavity of the material containing barrel, the ultrasonic sounder is started, air in the material sieving barrel and the material containing barrel is made to oscillate, and therefore ceramic powder in the material sieving barrel is sieved under the simultaneous action of the ultrasonic oscillation mechanism and the vibration hammer.
2. A ceramic powder pelletizing method as claimed in claim 1, characterized in that the dosing device comprises a silo and pneumatic valves, and pneumatic valves are provided at both the upper and lower ends of the silo, the pneumatic valve at the upper end of the silo being opened first and the pneumatic valve at the lower end of the silo being closed, so that the ceramic powder flowing out of the charging barrel flows into the silo for storage; and after the quantity of the stored ceramic powder in the storage bin reaches the screening requirement, opening a pneumatic valve at the lower end of the storage bin, and enabling the ceramic powder stored in the storage bin to fall into the screening device, thereby finishing quantitative charging of the ceramic powder.
3. The ceramic powder pelletizing method of claim 1 or 2, wherein the material mixing device includes a swinging mechanism, a servo motor and a sugar coating pan, the servo motor is started to drive the swinging mechanism to stir in the sugar coating pan, and the sugar coating pan is started to rotate while stirring, so that the ceramic powder in the sugar coating pan is fully stirred.
4. A ceramic powder balling device is characterized in that a quantitative feeding device is arranged below a feeding barrel, a screening device is arranged below the quantitative feeding device, a vibrating device is connected to the screening device, and a mixing device and a sugar coating pan are arranged below the screening device; ceramic powder in the charging barrel firstly enters a quantitative charging device, then enters a screening device for screening, and then enters a sugar-coating pan to be stirred into spherical ceramic particles; the powder fluidizing device comprises a fluidizing plate and an air-breather mechanism, wherein the charging barrel is internally provided with an inverted cone-shaped fluidizing plate, the fluidizing plate is provided with a through mesh, the air-breather mechanism comprises an air source, an air duct and an air-breather cavity, one end of the air duct is connected with the air source, and the other end of the air duct extends into the air-breather cavity; the quantitative feeding device comprises a material passing channel and pneumatic valves, the pneumatic valves comprise air cylinders and valve bodies, the valve bodies are arranged on one sides of the air cylinders, the upper ends of the material passing channel are communicated with the bottom of the feeding barrel, the material passing channel is provided with two pneumatic valves, and the material passing channel is divided into a material guide pipe, a material bin and a material discharging pipe from top to bottom by the two pneumatic valves; the screening device comprises a screening bucket and a containing bucket, the containing bucket is arranged at the lower end of the screening bucket, a screen is arranged at the bottom of the screening bucket, a screen cover is closed at the upper end of the containing bucket, and a closed cavity is formed between the screen and the containing bucket; the vibrating device comprises an ultrasonic vibrating mechanism and a vibrating hammer, the ultrasonic vibrating mechanism comprises an ultrasonic sounder and an air duct, one end of the air duct extends into the closed cavity, the other end of the air duct is connected with the ultrasonic sounder, and the two sides of the containing barrel are connected with the vibrating hammer; the bottom plate is arranged below the material containing barrel, the spring is arranged between the material containing barrel and the bottom plate, the upper end of the spring is connected with the bottom of the material containing barrel, and the lower end of the spring is connected with the bottom plate.
5. The ceramic powder balling device according to claim 4, characterized in that the mixing device comprises an adjusting bracket, a swinging rod, a servo motor and a sugar coating machine, wherein the servo motor is arranged on the adjusting bracket, the swinging rod comprises a swinging rod and a claw, one end of the swinging rod is fixedly connected with a rotating shaft of the servo motor, and the other end of the swinging rod is fixedly connected with the claw; the sugar coating machine comprises a base, a connector and a sugar coating pan, wherein a motor is arranged in the base, one end of the connector is fixedly connected with a rotating shaft of the motor, and the other end of the connector is fixedly connected with the bottom of the sugar coating pan.
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| CN202110499827.1A CN113210248B (en) | 2021-05-08 | 2021-05-08 | Ceramic powder balling method and device |
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| CN113210248B true CN113210248B (en) | 2023-03-07 |
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| CH691289A5 (en) * | 1995-08-25 | 2001-06-29 | Glatt Gmbh | Particle processing assembly such as sucrose coating of pellets has a vessel to form a processing zone linked to a separating column for a continuous or quasi-continuous delivery |
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| CN113210248A (en) | 2021-08-06 |
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