CN115555113A - Method for finely crushing ceramic raw material - Google Patents

Method for finely crushing ceramic raw material Download PDF

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Publication number
CN115555113A
CN115555113A CN202211312588.5A CN202211312588A CN115555113A CN 115555113 A CN115555113 A CN 115555113A CN 202211312588 A CN202211312588 A CN 202211312588A CN 115555113 A CN115555113 A CN 115555113A
Authority
CN
China
Prior art keywords
screening
fine crushing
materials
ceramic raw
raw material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202211312588.5A
Other languages
Chinese (zh)
Inventor
王利玺
任元春
任杰
鲁良运
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Gearbox Co Ltd
Original Assignee
Chongqing Gearbox Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chongqing Gearbox Co Ltd filed Critical Chongqing Gearbox Co Ltd
Priority to CN202211312588.5A priority Critical patent/CN115555113A/en
Publication of CN115555113A publication Critical patent/CN115555113A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C21/00—Disintegrating plant with or without drying of the material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/02—Feeding devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/14—Separating or sorting of material, associated with crushing or disintegrating with more than one separator
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00—Magnetic separation
    • B03C1/02—Magnetic separation acting directly on the substance being separated
    • 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
    • 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
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes

Abstract

The invention relates to a fine crushing method of a ceramic raw material, wherein when fine crushing treatment is carried out on a soft material by fine crushing equipment, a scraper on the roller surface of the fine crushing equipment can scrape the soft material adhered to the roller surface, so that the interference of the scraper on the roller surface on the rolling of the material is avoided, and a better fine crushing effect is further realized; meanwhile, for the soft materials after fine crushing, the soft materials are scattered and divided into two screening devices for simultaneous screening, the phenomenon that the soft materials in a single screening device are too much and are compacted and adhered to the screening surface of the screening equipment is avoided, the fine crushing effect is better, meanwhile, the screening efficiency is improved by arranging the two screening devices, and compared with the problem that the fine crushing process in the prior art can only be applied to hard raw materials and cannot realize the fine crushing effect of better soft raw materials, the fine crushing process provided by the invention is applicable to soft ceramic raw materials besides hard ceramic raw materials, can realize the fine crushing effect of better soft raw materials and improve the fine crushing efficiency.

Description

Method for finely crushing ceramic raw material
Technical Field
The invention relates to the technical field of mineral processing, in particular to a method for finely crushing a ceramic raw material.
Background
The ceramic raw materials are various, mainly comprise silicate minerals such as kaolin, feldspar and mica, and also comprise a small part of cordierite, transition metal oxide, diatomite and the like. Ceramic raw materials can be classified into hard raw materials and soft raw materials according to the mohs hardness. Before grinding the ceramic raw material into powder, a fine crushing process of the ceramic raw material is required, that is, the ceramic raw material is finely crushed into particles with a diameter smaller than a certain value (for example, less than 2 mm). The fine crushing process is suitable for hard raw materials, is difficult to be suitable for soft raw materials, has better hydrophilicity, higher water content, higher density and easy adhesion to equipment compared with the hard raw materials, and particularly, when the soft raw materials are sieved, the soft raw materials are easy to compact and adhere to a sieving surface of the sieving equipment, so that the sieving effect is poor; the equipment in small, broken bits is mainly equipment such as vertical mill, twin-roll machine, and this kind of equipment not only power is great, the energy consumption is higher, and if use equipment such as vertical mill, twin-roll machine to carry out crushing treatment, soft raw materials adhesion is on the roll surface of equipment very easily, and the interference roller surface is to rolling of material for fine crushing effect and fine crushing efficiency are relatively poor, so, soft raw materials do not use vertical mill or twin-roll machine crushing usually, just get into follow-up grinding process after roughly size screening or coarse breakage. In conclusion, the existing fine crushing process can only be applied to hard raw materials, and cannot realize the fine crushing effect of better soft raw materials; and the existing fine crushing equipment has higher energy consumption, which leads to higher production cost.
Disclosure of Invention
The invention aims to: aiming at the problems that the fine crushing process in the prior art can only be applied to hard raw materials and can not realize the fine crushing effect of better soft raw materials, the method for finely crushing the ceramic raw materials is provided.
In order to achieve the aim, the invention provides a method for finely crushing a ceramic raw material, which comprises the following steps:
a: screening out the material with the granularity larger than a preset critical granularity value by using a first screening device, and screening out a finished product of the material;
b: carrying out iron removal treatment on the oversize material;
c: feeding the material subjected to iron removal into fine crushing equipment with a scraper on the surface of a roller, and performing fine crushing treatment;
d: scattering the finely crushed materials by using a scattering device, and then feeding the materials into a material distributing device;
e: feeding the materials into a second screening device by using a material distribution device, screening the materials with the granularity larger than the preset critical granularity value, and screening the finished products of the materials;
f: and (e) repeating the steps c-e on the oversize material until all the materials are finished.
By adopting the technical scheme, when the fine crushing equipment is used for performing fine crushing treatment on the soft material, the scraper on the roller surface of the fine crushing equipment can scrape the soft material adhered to the roller surface, so that the interference of the scraper on the roller surface on the rolling of the material is avoided, and a better fine crushing effect is realized; meanwhile, the soft materials after fine crushing are scattered and sent to the second screening device for screening, so that the soft materials are prevented from being adhered and agglomerated, the screening is easier, and the screening efficiency is improved.
Furthermore, in the step e, the number of the second screening devices is two, and for soft materials, the material distribution device divides the materials into two parts and respectively sends the two parts into the two second screening devices, and the two parts are screened simultaneously, so that the phenomenon that the soft materials are too much in a single screening device and are compacted and adhered to the screening surface of the screening equipment is avoided, the fine crushing effect is better, and the screening efficiency is improved by arranging the two screening devices.
Furthermore, the fine crushing equipment is a single-transmission high-pressure roller mill with studs on the roller surface, and compared with a vertical mill and a double-roller mill in the prior art, the single-transmission high-pressure roller mill has the advantages of lower installed power, lower power consumption of unit product, energy consumption reduction and production cost saving; the stud type roller surface is adopted, so that the fine crushing effect on the hard ceramic raw material is better.
Furthermore, in the step c, materials with preset mass are weighed by the metering device and then are sent into the fine crushing equipment, the mass of the raw materials sent into the fine crushing equipment is accurately controlled, and the matching with the fine crushing capacity of the fine crushing equipment is ensured.
Further, the preset critical particle size value is 2mm.
Furthermore, first screening plant and second screening plant are the shale shaker, and equipment easily obtains, and screening effect is preferred.
Furthermore, the material distributing device is a three-way valve, and material distributing operation of materials can be effectively realized.
Furthermore, the metering device is a constant feeder, so that the equipment is easy to obtain and has better conveying, weighing and metering and quantitative control functions.
Furthermore, the scattering device is a scattering machine, so that the equipment is easy to obtain, and the scattering function of the material is better.
Compared with the prior art, the invention has the beneficial effects that: the fine crushing process provided by the invention is not only suitable for hard ceramic raw materials, but also suitable for soft ceramic raw materials, can realize the fine crushing effect of better soft raw materials, and improves the fine crushing efficiency; the fine crushing equipment adopts a single-transmission high-pressure roller mill, so that the energy consumption is reduced, and the production cost is saved.
Description of the drawings:
FIG. 1 is a first schematic flow chart of the method;
FIG. 2 is a second flowchart of the method.
The labels in the figure are: 1-a first bin, 2-a first screening device, 3-an iron removal device, 4-a second bin, 5-a metering device, 6-fine crushing equipment, 7-a scattering device, 8-a material distribution device, 9-a second screening device and 10-a finished product.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
This example provides a method for finely pulverizing a ceramic raw material, as shown in fig. 1-2, comprising the steps of:
a: screening out the material with the granularity larger than a preset critical granularity value by using a first screening device 2, and screening out a finished product of the material;
specifically, the materials are firstly sent into a first storage bin 1 to be stored, and then sent into a first screening device 2 from the first storage bin 1 to be screened; before the materials are fed into the first storage bin 1, the materials can be coarsely crushed, the granularity of the materials is smaller than 30mm, and the blockage of a discharge hole of the first storage bin 1 is prevented; the preset critical particle size value is set to be 2mm; the first screening device 2 is a vibrating screen;
b: carrying out iron removal treatment on the oversize material;
specifically, the iron removal device 3 is used for iron removal treatment, which can obviously improve the whiteness quality of the raw materials and is a necessary step in the ceramic raw material treatment process;
c: feeding the deironized materials into a fine crushing device 6 with a scraper on the roller surface for fine crushing treatment;
specifically, the materials after iron removal are sent into a second storage bin 4 for storage, then materials with preset mass are weighed by a metering device 5, and then the materials are sent into fine crushing equipment 6; the metering device 5 is a constant feeder; the fine crushing equipment 6 is a single-transmission high-pressure roller mill with stud nails on the roller surface; the scraper on the roller surface of the single-transmission high-pressure roller mill consists of a fixed frame, a pressing plate and a scraping plate, and is mainly used for fixing the scraping plate on the frames of the moving roller and the fixed roller respectively, wherein the scraping plate is a rubber plate or a polyethylene plate with the thickness of 10mm, and the gap between the scraping plate and the roller surface is 1mm.
d: the finely crushed materials are scattered by a scattering device 7 and then are sent to a material distributing device 8;
specifically, the scattering device 7 is a scattering machine, and scatters materials so as to facilitate the distribution of the material by the material distributing device 8; the material distributing device 8 is a three-way valve;
e: feeding the materials into a second screening device 9 by using a material distribution device 8, screening the materials with the granularity larger than the preset critical granularity value, and screening the finished products of the materials;
specifically, the number of the second screening devices 9 is two, and the second screening devices are all vibrating screens; when the hard materials are finely crushed, the material distributing device 8 sends the materials into one second screening device 9 for screening operation, and the other screening device is used for standby; when the soft materials are finely crushed, the material distributing device 8 equally divides the materials into two parts which are respectively sent to the two second screening devices 9 for screening operation;
f: and d, repeating the steps c-e on the materials on the screen until all the materials are finished.
By adopting the technical scheme, when the fine crushing equipment is used for performing fine crushing treatment on the soft material, the scraper on the roller surface of the fine crushing equipment can scrape the soft material adhered to the roller surface, so that the interference of the scraper on the roller surface on the rolling of the material is avoided, and a better fine crushing effect is realized; meanwhile, for the finely crushed soft materials, the soft materials are scattered and divided into two screening devices for simultaneous screening, so that the phenomenon that the soft materials in a single screening device are too much and are compacted and adhered to the screening surface of screening equipment is avoided, the fine crushing effect is better, meanwhile, the screening efficiency is improved by arranging the two screening devices, and compared with the problem that the fine crushing process in the prior art can only be applied to hard raw materials and cannot realize the fine crushing effect of better soft raw materials, the fine crushing process provided by the invention is applicable to soft ceramic raw materials besides hard ceramic raw materials, can realize the fine crushing effect of better soft raw materials and improve the fine crushing efficiency; meanwhile, the fine crushing equipment adopts a single-transmission high-pressure roller mill, so that the energy consumption is reduced, and the production cost is saved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (9)

1. A method for finely crushing ceramic raw materials is characterized by comprising the following steps:
a: screening out the material with the granularity larger than a preset critical granularity value by using a first screening device (2), and screening out the finished product of the material;
b: carrying out iron removal treatment on the oversize material;
c: feeding the material subjected to iron removal into fine crushing equipment (6) with a scraper on the surface of a roller for fine crushing treatment;
d: scattering the finely crushed materials by using a scattering device (7), and then sending the materials into a material distributing device (8);
e: feeding the materials into a second screening device (9) by using a material distribution device (8), screening the materials with the granularity larger than the preset critical granularity value, and screening the finished products of the materials;
f: and (e) repeating the steps c-e on the oversize material until all the materials are finished.
2. Method for finely crushing ceramic raw material according to claim 1, characterized in that in step e the number of the second screening means (9) is two.
3. The method for finely pulverizing a ceramic raw material according to claim 1, wherein the fine pulverizing device (6) is a single-drive high-pressure roller mill having a roller surface with studs.
4. A method for finely pulverizing a ceramic raw material according to claim 1, wherein in step c, a predetermined mass of the material is weighed by a weighing device (5) and then fed into the fine pulverizing apparatus (6).
5. A method for finely pulverizing a ceramic raw material as claimed in claim 1, wherein the predetermined critical particle size value is 2mm.
6. The ceramic raw material fine crushing method according to claim 2, wherein the first screening device (2) and the second screening device (9) are both vibrating screens.
7. The ceramic raw material fine crushing method according to claim 2, wherein the material dividing device (8) is a three-way valve.
8. A method for finely crushing ceramic raw material according to claim 4, characterized in that the metering device (5) is a constant feeder.
9. A method for finely pulverizing a ceramic raw material as claimed in claim 1, wherein said breaking device (7) is a breaker.
CN202211312588.5A 2022-10-25 2022-10-25 Method for finely crushing ceramic raw material Pending CN115555113A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211312588.5A CN115555113A (en) 2022-10-25 2022-10-25 Method for finely crushing ceramic raw material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211312588.5A CN115555113A (en) 2022-10-25 2022-10-25 Method for finely crushing ceramic raw material

Publications (1)

Publication Number Publication Date
CN115555113A true CN115555113A (en) 2023-01-03

Family

ID=84747180

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211312588.5A Pending CN115555113A (en) 2022-10-25 2022-10-25 Method for finely crushing ceramic raw material

Country Status (1)

Country Link
CN (1) CN115555113A (en)

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