CN111939838B - Automatic particle balling system - Google Patents
Automatic particle balling system Download PDFInfo
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- CN111939838B CN111939838B CN202010693350.6A CN202010693350A CN111939838B CN 111939838 B CN111939838 B CN 111939838B CN 202010693350 A CN202010693350 A CN 202010693350A CN 111939838 B CN111939838 B CN 111939838B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/12—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic in rotating drums
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/008—Feed or outlet control devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
The invention discloses an automatic particle balling system, which comprises a balling unit and a control unit; the balling unit comprises a material supply lifting mechanism, a storage bin, a metering and blanking combined member, a balling machine drum, a drum pitching mechanism and a cooperative robot which are sequentially arranged according to the material trend; the material supply lifting mechanism comprises a hopper and an electric hoist, the storage bin comprises a powder temporary storage bin and a master batch temporary storage bin, and the metering and blanking combined component comprises powder metering and master batch metering; the control unit comprises a vibrator arranged on the outer wall of the powder temporary storage bin and close to the outlet of the powder temporary storage bin, a level meter arranged on the powder temporary storage bin and the master batch temporary storage bin, a valve arranged on the outlet of the powder temporary storage bin and the outlet of the master batch temporary storage bin, a distance metering and discharging pipe and a mechanical arm arranged in the rotary drum; and the control cabinet is used for controlling the object level instrument, the valve, the vibrator, the metering blanking tube plate valve mechanism, the cooperative robot, the rotating speed of the rotary drum and the tilting angle of the rotary drum pitching mechanism.
Description
Technical Field
The invention relates to the field of small spherical particle forming, in particular to an automatic particle balling system.
Background
The inventor is the first responsible person for developing and producing molecular sieve products in molecular sieve enterprises. The traditional production mode of the molecular sieve is to use a sugar coating machine for the granules of pharmaceutical enterprises or other rotary drums with the same principle. When the molecular sieve is produced, a person can use a sugar coating pan to manually feed, discharge and spray for wetting; the production efficiency is low, the quality is uneven, and the production cost is high. The inventor of the invention has no mechanical equipment suitable for producing the small spherical particles with special technical requirements after running across the whole country and participating in industrial meetings. Thus, the development of the inventive device was forced to proceed.
The inventor personally goes to the patent with the number: ZL201310184187.0 "a disc pelletizer", a disc closed pellet pelletizing apparatus, examined by manufacturers of the patented apparatus, and by molecular sieve factories in the capital region where the patented apparatus is used. The equipment can continuously feed materials, can not continuously discharge materials, has less than half of qualified particles, and is a semi-automatic balling machine. Compared with the traditional balling disk, the ball forming machine only solves the problems of quantitative feeding, quantitative wetting, polishing and complete discharging in set time, and then the ball forming machine is conveyed to the next procedure by a belt conveyor to screen out qualified particles. This results in dramatic rework and waste, which is difficult to be accepted by the market, with the main drawbacks: the uniformity of the granules is not easy to adjust and control, the variation coefficient of the granules is large, defective products are more than 40%, and the granules are not accepted in the market.
Disclosure of Invention
Aiming at the problems, the invention provides an automatic particle balling system which has the advantages of easy adjustment and control of particle uniformity, high particle compressive strength, low abrasion, small particle variation coefficient and low defective products.
The technical scheme of the invention is as follows:
an automatic particle balling system comprises a balling unit and a control unit; the balling unit comprises a material supply lifting mechanism, a storage bin, a metering and blanking combined member, a balling machine drum, a drum pitching mechanism and a cooperative robot which are sequentially arranged according to the material trend; the material supply lifting mechanism comprises a hopper and an electric hoist, the storage bin comprises a powder temporary storage bin and a master batch temporary storage bin, and the metering and blanking combined component comprises powder metering and master batch metering;
the control unit comprises a control cabinet, a vibrator arranged on the outer wall of the powder temporary storage bin and close to the outlet of the powder temporary storage bin, a level meter arranged on the powder temporary storage bin and the master batch temporary storage bin, valves arranged on the outlet of the powder temporary storage bin and the outlet of the master batch temporary storage bin, and a metering and discharging pipe; the control cabinet is used for controlling the object level instrument, the valve, the vibrator, the metering blanking tube plate valve mechanism, the cooperative robot, the rotating speed of the rotary drum and the tilting angle of the pitching mechanism of the rotary drum.
The working principle of the technical scheme is as follows:
the material level meters of the powder bin and the master batch bin feed back signals, and the requirement that the powder and the master batch materials are continuously supplied to the ball forming mill is met through the PLC; after the rotating drum of the balling machine rotates at a working inclination angle, the first step: the PLC controls the cooperative robot to enter the rotary drum to spray the wetting agent, and the wetting agent is absorbed by particles in the rotary drum; the second step is that: under the instruction of PLC, the powder blanking valve and the vibrator (increasing the fluidity of the powder) and the metering blanking pipe valve are opened, so that the powder is quantitatively added into the balling rotary drum; the third step: the PLC controls the cooperative robot, the cooperative robot enters the rotary drum to stir, the powder entering the rotary drum is dispersed, and the wetted particles are adhered. Under the drive of the rotary drum, the particles are continuously adhered to the powder and are enlarged in the process of Pentium and extrusion; after the stirring is completed, the cooperative robot beats up the lumps at the vortex position of the rotary drum and then exits the rotary drum. In this case, no powder trace was visible on the granules in the drum. The production procedure of the pelletizer returns to the first step again; after N times of repetition, the PLC program enters the fourth step: the pelletizer slowly tilts downwards in the rotation process, because the increased qualified particles obtain larger potential energy, the particles always preferentially suspend on the surface of the pan mouth, and the large particles float out of the rotary drum in the running process and enter the next process. When the rotary drum is bent down at a proper angle, the rotary drum slowly tilts up to a working angle after qualified product particles are discharged; at the moment, the PLC instruction is sent to a master batch discharge valve of a master batch bin, and master batches needing to be added are added into the balling rotary drum. At this time, the program returns to the first step of the working program;
by adopting the technical scheme and principle, the problems of uniformity, abrasion, particle strength, particle variation coefficient and high defective product of the spherical particles can be solved by adjusting technical parameters.
In the technical scheme, the control cabinet is internally provided with a PLC program for control, and the control cabinet is provided with a PLC touch screen.
In the above technical scheme, the particle pelletizing system further comprises a dust removal unit, wherein the dust removal unit comprises a pulse dust remover and a dust removal pipe, and the dust removal pipe is laid on the pelletizing unit.
In the above technical solution, the control cabinet controls the start and stop of the pulse dust collector and the output power.
In the above technical solution, the cooperative robot includes a particle stirring mechanism, a wetting agent spraying mechanism, and a lump patting and scattering mechanism.
The invention has the beneficial effects that:
1. by adopting the technical scheme and principle, the problems of high size, uniformity, particle strength, particle variation coefficient and defective products of the spherical particles can be solved by adjusting technical parameters;
2. the cooperative robot arranged on the ball forming mill can disperse powder materials quickly in time, uniformly spray wetting agents on particles and timely beat and disperse adhesive connecting blocks generated in the wetting process;
3. the system is provided with the dust removal unit, so that a user can operate in a clean environment, and the operating platform is used for technicians and operators to observe the balling condition and the requirements of maintenance in real time.
Drawings
FIG. 1 is a schematic diagram of an automated particle pelletizing system according to the present invention;
FIG. 2 is a schematic view of the distance measuring down tube of the present invention.
Description of reference numerals:
11. a skip car; 12. a hopper; 13. an electric hoist; 14. temporarily storing the powder in a bin; 15. temporarily storing the master batches; 21. a ball forming machine; 22. a collaborative robot; 31. a control cabinet; 32. a PLC touch screen; 33. a blanking tube assembly member; 331. a powder valve; 332. a soft connecting pipe; 333. a fixed-distance metering blanking pipe; 334. master batch interface; 335. tensioning the rope; 336. an end cap valve; 34. a master batch valve; 35. a first level meter; 36. a second position instrument; 37. a third level meter; 38. a vibrator; 41. a pulse dust collector; 42. and a dust removal pipe.
Detailed Description
The embodiments of the present invention will be further described with reference to the accompanying drawings.
Example (b):
as shown in fig. 1 and 2, an automatic particle pelletizing system includes a feeding unit, a pelletizing unit and a control unit;
the feeding unit comprises a skip car 11, a hopper 12 and an electric hoist 13, the mouth part of the hopper 12 is firstly flush with the ground, the skip car 11 is used for pouring powder or master batches into the hopper 12, and the powder or master batches in the hopper 12 enter a balling unit through the electric hoist 13 in a suspended state;
the balling unit comprises a balling machine 21, a powder temporary storage bin 14, a master batch temporary storage bin 15, a cooperative robot 22, a metering and discharging pipe 33 and an auxiliary stirring mechanism, wherein the balling machine comprises a rotary drum and a rotary drum pitching mechanism;
the blanking tube combined component 33 has three ports, the powder temporary storage bin 14 and the balling machine 21 are connected on two ports on the blanking tube combined component 33 respectively, another port of the blanking tube combined component 33 is connected in the rotary drum of the balling machine 21, the cooperative robot 22 is arranged in the rotary drum of the balling machine 21, the cooperative robot 22 can uniformly wet the particles overturned in the rotary hub of the balling machine 21 in real time, the wetted particles can be overturned and mixed in rotation after contacting with the added powder material, the powder can be naturally adhered on the wetted particles and overturned, extruded and enlarged in the rotary hub; in the wetting process of particle manufacturing, the caking balls and the sticking are carried out, and the generation of the least waste products is controlled through an auxiliary stirring mechanism;
the control unit comprises a control cabinet 31, a first object level instrument 35, a second object level instrument 36, a third object level instrument 37, a powder valve 331, a master batch valve 34 and a vibrator 38, wherein the first object level instrument 35 is arranged on the master batch temporary storage bin 15, the second object level instrument 36 is arranged on the powder temporary storage bin 14, the third object level instrument 37 is arranged at the joint of the powder temporary storage bin 14 and the blanking pipe combined member 33, the vibrator 38 is arranged on the inner wall of the powder temporary storage bin 14, the vibrator 38 can prevent powder from being deposited in the powder temporary storage bin 14 or in a channel of the blanking pipe combined member 33, the powder valve 331 is arranged on an outlet of the powder temporary storage bin 14, and the master batch valve 34 is arranged at the outlet of the master batch temporary storage bin 15;
the first level meter 35, the second level meter 36 and the third level meter 37 are all sensor elements, can sense the raw material allowance in the temporary master batch storage bin 15 and the temporary powder storage bin 14, and the control cabinet 31 controls the rotating hub rotating speed and the tilting angle of the powder valve 331, the master batch valve 34, the vibrator 38, the blanking pipe combined member 33 and the granulator 21 through the PLC intelligent program, and controls the amount of powder, the amount of master batch, the starting and stopping frequency of the beating the temporary powder storage bin 14 by the vibrator 38 and the working state of the granulator 21;
the speed of adding raw materials in the ball forming mill 21 is controlled by a PLC intelligent program in a control cabinet 31 to control the rotating speed and the tilting angle of a rotating hub of the ball forming mill 21 and control the stirring speed, under the control of the PLC intelligent program, the stirring wetting spraying mechanism 23 and the auxiliary stirring mechanism uniformly wet the particles overturned in the rotating hub of the ball forming mill 21 in real time, and then the particles can be overturned and mixed in rotation after contacting with the added powder materials, the powder can be naturally adhered to the moistened particles, overturned, extruded and enlarged in the rotating hub, the finished qualified particles are converted into the tilting angle of the ball forming mill 21 in a control instruction of the PLC intelligent program, and the finished spherical particles in the rotating hub can be ensured to be unscrewed in real time;
the level meters on the powder temporary storage bin 14 and the master batch temporary storage bin 15 feed back signals, and the control cabinet 31 ensures that the powder material and the master batch material are continuously supplied to the granulator 21; when the rotating drum of the balling machine 21 works, the control cabinet 31 sends an instruction to the mechanical arm 22, and the wetting agent is uniformly sprayed on the master batch material in the rotating drum;
after spraying for a certain time, the humidity of the master batch material in the rotary drum reaches the feeding requirement, when powder material needs to be fed into the rotary drum, under the instruction of the control cabinet 31, the powder valve 331 and the vibrator 38 (increasing the flowability of the powder) and the fixed-distance metering blanking pipe valve 33 are opened for a certain time, and the powder material is quantitatively fed into the rotary drum; the control cabinet 31 sends a control instruction to the stirring wetting spraying mechanism 23, the cooperative robot 22 enters the master batch materials of the rotary drum to accelerate the dispersion of the powder, and the wetted master batch materials are adhered; under the drive of the rotary drum, the master batch material is continuously adhered to the powder material, and the master batch material is enlarged in rotation and extrusion;
lifting the cooperative robot 22 after stirring is completed; at the moment, the powder material in the rotary drum is uniformly adhered to the master batch material; after the above steps are repeated for many times, the control cabinet 31 controls the drum pitching mechanism to slowly pitch down during rotation, and since the increased qualified finished product particles have large potential energy, the finished product particles always suspend on the pan opening surface preferentially, and the finished product particles float and screw out of the drum along with the rotation of the drum, and enter the next process;
when the rotary drum is bent down at a proper angle for a period of time, and qualified product particles are discharged, the rotary drum pitching mechanism is tilted up again to achieve the working angle; at this time, the control cabinet sends out an instruction to carry out the next working cycle; when powder materials enter the rotary drum and are easy to agglomerate, the control cabinet 31 sends an instruction to open the mechanical arm 22, and possible agglomerates are scattered; by adopting the technical scheme and principle, the size, uniformity and strength of the spherical particles, the particle variation coefficient and high defective product can be adjusted by adjusting technical parameters.
In another embodiment:
the control unit also comprises a PLC touch screen 32, and relevant parameters of products to be produced can be input on the PLC touch screen 32, so that production according to corresponding requirements is realized.
In another embodiment:
the particle balling system also comprises a dust removal unit, wherein the dust removal unit comprises a pulse dust remover 41 and a dust removal pipe 42, the dust removal pipe 42 is laid on the balling unit, the dust removal unit is arranged in the system, a user can be ensured to operate in a clean environment, and an operation platform is used for technicians and operators to observe balling conditions and meet the requirements of maintenance in real time.
In another embodiment:
the control cabinet 31 controls the start and stop of the pulse dust collector 41 and the output power, and the start and stop of the dust collection unit is controlled by using a PLC intelligent program, so that intelligent dust collection is realized.
In another embodiment:
as shown in fig. 2, the feeding pipe assembly 33 includes a flexible connection pipe 332, a distance measuring feeding pipe 333, a master batch interface 334, a tension rope 335 and an end cover valve 336, a powder valve 331 is installed on the outlet of the powder temporary storage bin 14, meanwhile, the outlet is connected with one end of a flexible connecting pipe 332, the other end of the flexible connecting pipe 332 is connected with one end of a distance measuring discharging pipe 333, the other end of the distance measuring discharging pipe 333 is provided with an end cover valve 336 and one end of a tension rope 335, the other end of the tension rope 335 is connected with a telescopic mechanism by bypassing a fixed pulley arranged at the outlet of the powder temporary storage bin 14, the telescopic mechanism is controlled by the control cabinet 31 to realize the adjustment of the elevation angle of the fixed-distance metering blanking pipe 333, the master batch interface 334 is arranged in the middle of the distance metering discharging pipe 333, the powder material and the particle material are preliminarily mixed in the distance metering discharging pipe 333, the control cabinet 31 controls the end cap valve 336 to control the amount of raw material entering the rotary drum of the pelletizer 21.
In another embodiment:
the cooperative robot 22 comprises a particle stirring mechanism, a wetting agent spraying mechanism and a caking and scattering structure, wherein the particle stirring mechanism is used for stirring master batches and powder materials in a rotary drum of the granulator 21; the wetting agent spraying mechanism is used for uniformly soaking the master batches with water, and the caking beating and dispersing mechanism is used for beating the agglomerated master batches and powder in the rotary drum.
The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (1)
1. An automatic particle balling system is characterized by comprising a balling unit and a control unit; the balling unit comprises a material supply lifting mechanism, a storage bin, a metering and blanking combined member, a balling machine drum, a drum pitching mechanism and a cooperative robot which are sequentially arranged according to the material trend; the material supply lifting mechanism comprises a hopper and an electric hoist, the storage bin comprises a powder temporary storage bin and a master batch temporary storage bin, and the metering and blanking combined component comprises powder metering and master batch metering;
the control unit comprises a control cabinet, a vibrator arranged on the outer wall of the powder temporary storage bin and close to the outlet of the powder temporary storage bin, a level meter arranged on the powder temporary storage bin and the master batch temporary storage bin, valves arranged on the outlet of the powder temporary storage bin and the outlet of the master batch temporary storage bin, and a metering and discharging pipe; the control cabinet is used for controlling a level meter, a valve, a vibrator, a metering blanking pipe plate valve mechanism, a cooperative robot, a rotary drum rotating speed and a rotary drum pitching mechanism tilting angle, a PLC program control is arranged in the control cabinet, a PLC touch screen is arranged on the control cabinet, the particle balling system further comprises a dust removal unit, the dust removal unit comprises a pulse dust remover and a dust removal pipe, the dust removal pipe is laid on the balling unit, the control cabinet controls starting and stopping and output power of the pulse dust remover, a blanking pipe combination component comprises a soft connecting pipe, a distance metering blanking pipe, a master batch interface, a tensioning rope and an end cover valve, a powder valve is arranged on an outlet of the powder temporary storage bin, the outlet is connected to one end of the soft connecting pipe, the other end of the soft connecting pipe is connected to one end of the distance metering blanking pipe, and one end of the end cover valve and one end of the tensioning rope are arranged on the other end of the distance metering blanking pipe, the other end of the tensioning rope is connected to the telescopic mechanism by bypassing a fixed pulley arranged at the outlet of the powder temporary storage bin, the telescopic mechanism is controlled by the control cabinet, the adjustment of the elevation angle of the fixed-distance metering blanking pipe is realized, a master batch interface is arranged in the middle of the fixed-distance metering blanking pipe, powder materials and particle materials are preliminarily mixed in the fixed-distance metering blanking pipe, and the control of the amount of the raw materials entering the rotary drum of the granulator is realized by controlling an end cover valve through the control cabinet;
the cooperative robot comprises a particle stirring mechanism, a wetting agent spraying mechanism and a blocking and scattering mechanism, wherein the particle stirring mechanism is used for stirring master batches and powder in a rotary drum of the ball forming machine; the wetting agent spraying mechanism is used for uniformly soaking the master batches with water, and the caking beating and dispersing mechanism is used for beating the agglomerated master batches and powder in the rotary drum.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010693350.6A CN111939838B (en) | 2020-07-17 | 2020-07-17 | Automatic particle balling system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010693350.6A CN111939838B (en) | 2020-07-17 | 2020-07-17 | Automatic particle balling system |
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| CN111939838A CN111939838A (en) | 2020-11-17 |
| CN111939838B true CN111939838B (en) | 2022-08-16 |
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| US2984861A (en) * | 1959-12-07 | 1961-05-23 | Koppers Co Inc | Balling drum |
| JP2020028829A (en) * | 2018-08-21 | 2020-02-27 | 株式会社ビートセンシング | Granulation method |
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| US3161707A (en) * | 1960-11-02 | 1964-12-15 | Koppers Co Inc | Process and apparatus of making large balls in a drum pelletizer |
| FR2585971A1 (en) * | 1985-08-07 | 1987-02-13 | Kaltenbach Thuring Sa | GRANULATION DEVICE AND PLANT |
| CN201997305U (en) * | 2011-01-27 | 2011-10-05 | 山东鲲鹏新材料科技股份有限公司 | Rolling ball forming machine |
| CN202173924U (en) * | 2011-06-20 | 2012-03-28 | 优利（苏州）科技材料有限公司 | Material conveying and mixing device for granulator |
| CN103894136B (en) * | 2014-03-29 | 2015-07-08 | 太原工业学院 | One-step method reaction device for thermoplastic polyurethane |
| CN108582415B (en) * | 2018-05-31 | 2024-04-23 | 宁夏大学 | Baking-free haydite granulator |
| CN208512494U (en) * | 2018-06-19 | 2019-02-19 | 南京新中磁电技术工程有限公司 | A kind of ferrite magnetic material automatic granulating device |
| CN208599678U (en) * | 2018-07-04 | 2019-03-15 | 洛阳隆昌耐火材料有限公司 | Petroleum fracturing propping agent cooking-pot type granulator |
| CN209055201U (en) * | 2018-10-30 | 2019-07-02 | 长沙兴嘉生物工程股份有限公司 | A kind of powder material automatic weighing proportioner |
| CN110237770A (en) * | 2019-07-24 | 2019-09-17 | 岳梁彩 | Circular reshaping nodularization system in a kind of batch |
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2020
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2984861A (en) * | 1959-12-07 | 1961-05-23 | Koppers Co Inc | Balling drum |
| JP2020028829A (en) * | 2018-08-21 | 2020-02-27 | 株式会社ビートセンシング | Granulation method |
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