Ceramic raw material pulverizing equipment

Abstract

The utility model discloses ceramic raw material pulverizing equipment, and relates to the technical field of ceramic pulverizing. Ceramic raw material pulverizing equipment comprises a feeding system, an iron removal system, an extrusion powder selecting system, a discharging system and an air supply system. The iron removal system comprises a first iron remover; the extrusion powder selecting system comprises a powder selecting machine and a high-pressure roller mill; the air supply system comprises a fan and a heating device; the first iron remover is arranged on the feeding system; a discharging port of the feeding system is connected with a feeding port of the powder concentrator, a coarse material discharging port of the powder concentrator is connected with a feeding port of the high-pressure roller mill, and an air outlet of the powder concentrator is connected with the discharging system. A discharge hole of the high-pressure roller mill is connected with the feeding system; an air outlet of the fan is connected with an air inlet of the powder concentrator, and the heating device is connected with the air inlet of the powder concentrator. The equipment integrates the functions of dispersion, extrusion powder selection, drying and impurity removal, is simple to operate, and is beneficial to actual production and application.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of ceramic powder production, in particular to a ceramic raw material powder production device. BACKGROUND

[0002] In the field of ceramic powder production, the commonly used powder production processes include a wet powder production process and a dry powder production process. The conventional dry powder production process has relatively low energy consumption and less toxic emissions, and has certain advantages in process cost and environmental protection. However, the traditional dry powder production process still has some problems, such as incomplete slag removal, poor material dispersion effect, poor quality stability, and the like. The production process equipment still has room for improvement. CONTENT OF THE INVENTION

[0003] The application aims to provide a ceramic raw material powder production device which can dry the ceramic raw material and fully remove the iron impurities contained in the ceramic raw material while grinding and producing the ceramic raw material, thereby improving the quality of the product powder, integrating the functions of dispersion, grinding, powder selection, drying and impurity removal, and being simple to operate and conducive to practical production and application.

[0004] The technical scheme of the application is as follows:

[0005] The application provides a ceramic raw material powder production device, which comprises a feeding system, an iron removal system, an extrusion powder selection system, a discharging system and an air supply system.

[0006] The iron removal system comprises a first iron remover, the extrusion powder selection system comprises a powder selection machine and a high-pressure roller mill, and the air supply system comprises a fan and a heating device.

[0007] The first iron remover is arranged in the feeding system and used for removing the iron impurities in the ceramic raw material. The feeding port of the feeding system is used for feeding the ceramic raw material, the discharging port of the feeding system is connected with the feeding port of the powder selection machine, the coarse material discharging port of the powder selection machine is connected with the feeding port of the high-pressure roller mill, and the air outlet of the powder selection machine is connected with the discharging system. The discharging port of the high-pressure roller mill is connected with the feeding system, and the material ground by the high-pressure roller mill is fed back to the powder selection machine. The product ceramic powder is collected and discharged by the discharging system.

[0008] The air outlet of the fan is connected with the air inlet of the powder selection machine, and the heating device is connected with the air inlet of the powder selection machine.

[0009] Compared with the prior art, the embodiments of the application have at least the following advantages or beneficial effects:

[0010] In view of the above, the embodiment of the present application provides a ceramic raw material powder making equipment, which can remove iron impurities in the ceramic raw material through an iron removal system, send the ceramic raw material after iron removal to an extrusion powder selection system through a feeding system, and use a powder selector and a high-pressure roller mill to select and extrude grind the ceramic raw material. The micro-powder material meeting the product requirements obtained after extrusion grinding and powder selection is further sent to a discharge system for collection and production, while the large-particle material selected out is ground and re-input into the equipment together with new material for powder selection, through repeated extrusion grinding and powder selection, until the product micro-powder meeting the requirements is obtained, so as to ensure the quality of the product powder. In addition, since the ceramic raw material generally contains a certain amount of moisture, the equipment is provided with air supply by using a fan, and the air is heated by a heating device, so that the hot air is used to dry the ceramic raw material, avoiding the adverse effect of the moisture contained in the ceramic raw material on the powder selection and dispersion of the material, and helping to further ensure the quality of the product powder. BRIEF DESCRIPTION OF DRAWINGS

[0011] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0012] Figure 1 A process flow structure schematic diagram of a ceramic raw material powder making equipment provided in the embodiment 1 of the present application;

[0013] Figure 2 A process flow structure schematic diagram of a ceramic raw material powder making equipment provided in the embodiment 2 of the present application;

[0014] Figure 3 A process flow structure schematic diagram of a ceramic raw material powder making equipment provided in the embodiment 3 of the present application;

[0015] Figure 4 A process flow structure schematic diagram of a ceramic raw material powder making equipment provided in the embodiment 4 of the present application.

[0016] The drawings show that: 1 is a feeding belt, 2 is an elevator, 3 is a first iron remover, 4 is a second iron remover, 5 is a third iron remover, 6 is a powder selector, 7 is a steady flow constant weight bin, 8 is a high-pressure roller mill, 9 is a cyclone separator, 10 is a dust collector, 11 is an air conveying chute, 12 is a fan, and 13 is a heating device. DETAILED DESCRIPTION

[0017] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of the present application.

[0019] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0020] In the description of the embodiments of the present application, it should also be noted that, unless explicitly defined and limited, if the terms such as "set", "connected" appear, they should be understood in a broad sense, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, can be electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, or can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0021] It should be noted that the relational terms such as "first" and "second" and the like are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that these entities or operations exist in any such actual relationship or order. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the elements defined by the statement "include" do not exclude the presence of other identical elements in the process, method, article or equipment including the elements.

[0022] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0023] The features and performances of the present application will be further described in detail below in combination with the embodiments.

[0024] Embodiment 1

[0025] Referring to Figure 1 The embodiment provides a ceramic raw material powder preparation device, which comprises a feeding system, an iron removal system, an extrusion powder selection system, a discharge system and an air supply system.

[0026] The feeding system comprises a feeding belt 1 and a hoist 2; the iron removal system comprises a first iron remover 3, a second iron remover 4 and a third iron remover 5; the extrusion powder selection system comprises a powder concentrator 6, a constant weight flow stabilizer 7 and a high-pressure roller mill 8; the discharge system comprises a dust collector 10 and an air conveying chute 11; and the air supply system comprises a fan 12 and a heating device 13.

[0027] The first iron remover 3 is arranged on the feeding belt 1, the discharge port of the feeding belt 1 is connected with the feeding port of the hoist 2, the discharge port of the hoist 2 is connected with the feeding port of the powder concentrator 6, and the second iron remover 4 is arranged between the pipeline connecting the hoist 2 and the powder concentrator 6.

[0028] The coarse material discharge port of the powder concentrator 6 is connected with the feeding port of the constant weight flow stabilizer 7, the discharge port of the constant weight flow stabilizer 7 is connected with the feeding port of the high-pressure roller mill 8, and the discharge port of the high-pressure roller mill 8 is connected with the feeding port of the hoist 2.

[0029] The air outlet of the powder concentrator 6 is connected with the air inlet of the dust collector 10, the solid material outlet of the dust collector 10 is connected with the air conveying chute 11, and the third iron remover 5 is arranged on the air conveying chute 11 and close to the discharge port of the air conveying chute 11.

[0030] The air outlet of the dust collector 10 is connected with the fan 12, the air outlet of the fan 12 is connected with the air inlet of the powder concentrator 6, and the heating device 13 is connected with the air inlet of the powder concentrator 6.

[0031] The working process of the device is as follows:

[0032] The ceramic raw material is placed on the feeding belt 1 for transportation, passes through the first iron remover 3, and the iron impurities in the ceramic raw material are preliminarily removed by the first iron remover 3; the ceramic raw material after preliminary iron removal is sent to the feeding port of the hoist 2 from the feeding belt 1, and the hoist 2 sends the ceramic raw material to the powder concentrator 6 for powder selection, and the ceramic raw material is sent to the powder concentrator 6 and is subjected to secondary iron removal by the second iron remover 4 in the process of being sent to the powder concentrator 6. In the powder selection process, the ceramic micro-powder meeting the particle size requirement is brought into the airflow and discharged from the air outlet of the powder concentrator 6 and sent to the dust collector 10, the solid powder material is separated by the dust collector 10 and sent to the air conveying chute 11, and the powder material is subjected to three times of iron removal by the third iron remover 5, and finally the product ceramic powder material is obtained.

[0033] In the powder selection process, the material that does not meet the requirements and has a large particle size is sent to the steady flow constant weight bin 7 through the coarse material discharge port of the powder selection machine 6, so that the material forms a certain material pressure in the bin and is then fed into the high-pressure roller mill 8 for bed crushing and extrusion after being supersaturated. Then, the material that is crushed and extruded by the high-pressure roller mill 8 is sent to the feeding port of the elevator 2, and is sent to the powder selection machine 6 again with the new ceramic raw material transported by the feeding belt 1 to be dispersed and selected again by the powder selection machine 6. Similarly, the material is subjected to iron removal by the second iron remover 4. Thus, the ceramic raw material is subjected to cyclic crushing and powder selection.

[0034] The air for the whole device comes from the air blower 12, and the air blower 12 forms a negative pressure to guide the air to the powder selection machine 6. The airflow carrying the fine powder material in the powder selection machine 6 is sent to the dust collector 10 through the air outlet of the powder selection machine 6, and the dust-free airflow is sent to the air blower 12 through the air outlet of the dust collector 10 after being separated by the dust collector 10, to form an airflow circulation. The air outlet of the air blower 12 is divided into two paths, one of which is connected to the powder selection machine 6 to supply air to the powder selection machine 6, and the other of which is connected to the dust collector 10 to supply air to the dust collector 10.

[0035] Embodiment 2

[0036] The ceramic raw material powder production equipment provided in the embodiment is based on embodiment 1, and the difference from embodiment 1 is that:

[0037] As shown in Figure 2 In the embodiment, the feeding port of the powder selection machine 6 is located at the upper side, the coarse material discharge port is located at the lower side, the air inlet is located at the side, and the air outlet is located at the lower side.

[0038] In the powder selection process of the whole device, the material-air mixture is horizontally or downwardly transported, so as to reduce the load of the air blower 12, thereby reducing the equipment wear and saving energy consumption.

[0039] Embodiment 3

[0040] The ceramic raw material powder production equipment provided in the embodiment is based on embodiment 1, and the difference from embodiment 1 is that:

[0041] As shown in Figure 3 In the embodiment, the above-mentioned material discharge system further includes a cyclone separator 9.

[0042] The air outlet of the powder selection machine 6 is connected to the feeding port of the cyclone separator 9, the solid material outlet of the cyclone separator 9 is connected to the air conveying chute 11, and the air outlet of the cyclone separator 9 is connected to the air blower 12.

[0043] The air outlet of the air blower 12 is divided into two paths, one of which is connected to the air inlet of the powder selection machine 6, and the other of which is connected to the air inlet of the dust collector 10.

[0044] The solid material outlet of the dust collector 10 is connected to the air conveying chute 11, and the air outlet of the dust collector 10 discharges to the outside.

[0045] Example 4

[0046] This embodiment provides a ceramic raw material powder making device, which is based on Embodiment 3, but differs from Embodiment 3 in that:

[0047] like Figure 4 As shown, in this embodiment, the feed inlet of the classifier 6 is located at the top, the coarse material discharge outlet is located at the bottom, the air inlet is located on the side, and the air outlet is located at the bottom.

[0048] Throughout the powder selection process, the material and gas mixing direction is horizontal or downward conveying, thereby reducing the load on the blower 12, thus reducing equipment wear and saving energy.

[0049] In summary, this application provides a ceramic raw material powder making device that removes iron impurities from ceramic raw materials through an iron removal system. The iron-removed ceramic raw materials are then fed into an extrusion and classification system via a feeding system. A classifier 6 and a high-pressure roller mill 8 are used to classify, extrude, and grind the ceramic raw materials. The micro-powder material that meets product requirements after extrusion, grinding, and classification is further sent to a discharge system for collection and output. Larger particles that are separated are ground and re-input into the equipment along with new material for classification. Through repeated extrusion, grinding, and classification, the required micro-powder product is obtained, thus ensuring the quality of the product powder. Furthermore, since ceramic raw materials generally contain a certain amount of moisture, a blower 12 supplies air to the equipment, providing power for classification. Simultaneously, a heating device 13 heats the air, using hot air to dry the ceramic raw materials. This avoids the adverse effects of moisture on the dispersion of the material during classification, further ensuring the quality of the product powder.

[0050] The embodiments described above are some, but not all, of the embodiments of this application. The detailed description of the embodiments of this application is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

Claims

1. A ceramic raw material powder making equipment, characterized in that, It comprises a feeding system, a de-ironing system, an extrusion powder selecting system, a discharging system and an air supply system; The de-ironing system comprises a first de-ironer; the extrusion powder selecting system comprises a powder selecting machine and a high-pressure roller mill; the air supply system comprises a fan and a heating device; The first de-ironer is arranged in the feeding system and used for removing iron impurities in the ceramic raw materials; the feeding port of the feeding system is used for feeding the ceramic raw materials, the discharging port of the feeding system is connected with the feeding port of the powder selecting machine, the coarse material discharging port of the powder selecting machine is connected with the feeding port of the high-pressure roller mill, and the air outlet of the powder selecting machine is connected with the discharging system; the discharging port of the high-pressure roller mill is connected with the feeding system and used for feeding the material ground by the high-pressure roller mill back to the powder selecting machine; and the product ceramic powder is collected and discharged by the discharging system; The air outlet of the fan is connected with the air inlet of the powder selecting machine, and the heating device is connected with the air inlet of the powder selecting machine.

2. The ceramic raw material powder production apparatus according to claim 1, characterized by, The feeding system comprises a feeding belt and an elevator, the feeding port of the feeding belt is used for feeding the ceramic raw materials, the discharging port of the feeding belt is connected with the feeding port of the elevator, and the discharging port of the elevator is connected with the powder selecting machine. The first de-ironer is arranged in the feeding belt.

3. The ceramic raw material powder production apparatus according to claim 1, characterized by The de-ironing system further comprises a second de-ironer, which is arranged between the pipeline connecting the feeding system and the powder selecting machine.

4. The ceramic raw material powder production apparatus according to claim 1, characterized by The extrusion powder selecting system further comprises a steady flow constant weight bin, the feeding port of the steady flow constant weight bin is connected with the coarse material discharging port of the powder selecting machine, and the discharging port of the steady flow constant weight bin is connected with the feeding port of the high-pressure roller mill.

5. The ceramic raw material powder production apparatus according to claim 1, wherein The discharging system comprises a dust collector and an air conveying chute, the air inlet of the dust collector is connected with the air outlet of the powder selecting machine, and the solid material outlet of the dust collector is connected with the air conveying chute.

6. The ceramic raw material powder production apparatus according to claim 5, wherein The de-ironing system further comprises a third de-ironer, which is arranged in the air conveying chute and close to the discharging port of the air conveying chute.

7. The ceramic raw material powder production apparatus according to claim 5, wherein The air outlet of the dust collector is connected with the fan.

8. The ceramic raw material powder production apparatus according to claim 5, wherein The discharging system further comprises a cyclone separator, the air inlet of the cyclone separator is connected with the air outlet of the powder selecting machine, the air outlet of the cyclone separator is connected with the air inlet of the dust collector, and the solid material outlet of the cyclone separator is connected with the air conveying chute.

9. The ceramic raw material powder production apparatus according to claim 8, characterized by The air outlet of the cyclone separator is connected with the fan, and the air outlet of the fan is connected with the air inlets of the dust collector and the powder selecting machine respectively.

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