CN218308473U - Micro powder production system and dry powder making system - Google Patents
Micro powder production system and dry powder making system Download PDFInfo
- Publication number
- CN218308473U CN218308473U CN202221484145.XU CN202221484145U CN218308473U CN 218308473 U CN218308473 U CN 218308473U CN 202221484145 U CN202221484145 U CN 202221484145U CN 218308473 U CN218308473 U CN 218308473U
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- dust collector
- screen
- powder
- production system
- dust
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- 239000000843 powder Substances 0.000 title claims abstract description 63
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 31
- 239000000428 dust Substances 0.000 claims abstract description 61
- 238000001035 drying Methods 0.000 claims abstract description 15
- 239000004744 fabric Substances 0.000 claims description 18
- 239000000919 ceramic Substances 0.000 claims description 9
- 238000009837 dry grinding Methods 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 26
- 238000012216 screening Methods 0.000 abstract description 25
- 239000000463 material Substances 0.000 abstract description 6
- 239000011449 brick Substances 0.000 abstract description 5
- 239000002245 particle Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000005469 granulation Methods 0.000 description 6
- 230000003179 granulation Effects 0.000 description 6
- 238000000227 grinding Methods 0.000 description 6
- 239000002994 raw material Substances 0.000 description 5
- 238000010298 pulverizing process Methods 0.000 description 4
- 238000000498 ball milling Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000001694 spray drying Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000007602 hot air drying Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
Abstract
The utility model discloses a miropowder material production system and dry process powder process system relates to pottery brick production facility field. Wherein the micro powder production system comprises a vertical mill, a dust collector and a fan; the vertical mill and the dust collector, and the dust collector and the fan are communicated through air pipes; the air inlet channel of the dust collector is internally provided with a screen, so that the dust-containing gas entering the dust collector from the air pipe is filtered by the screen and then enters the dust collector for dust removal. Implement the utility model discloses, can promote screening efficiency, reduce the screening trouble, reduce equipment input cost, operation cost, and widen the application scope of dry process powder process system by a wide margin.
Description
Technical Field
The utility model relates to a pottery brick production facility field especially relates to a miropowder production system and dry process powder process system.
Background
In the field of ceramic tile production, the traditional wet-process powder preparation refers to a process technology of mixing and ball-milling various raw materials, drying and granulating the prepared slurry by adopting a spray drying tower, and further obtaining a certain particle size distribution. The process route needs to add water to the water content of 35-40 wt% in the ball milling stage, and then dry the water content to about 6-8 wt% in the spray drying stage, which needs to consume a large amount of drying energy. For this reason, the industry has proposed dry milling technology. Generally, the process flow of dry milling is as follows: the preparation method comprises the steps of proportioning, crushing and grinding various raw materials, and then adding water for granulation to obtain powder. Further, depending on the nature of the raw materials in each place, the preceding steps may be supplemented with steps such as pre-crushing and drying.
In the existing dry-method powder-making process, the granulation part often has great difference, and in the existing process, a disc granulator is adopted for humidifying granulation, a V-shaped mixer is adopted for humidifying granulation, and a cyclone cylinder is adopted for humidifying granulation. However, no matter how the granulation process is, the former grinding process is more uniform, and the grinding process adopts a technical route of grinding by a vertical mill, collecting dust by a bag dust collector to discharge micro powder, and then screening, wherein the existing screening is generally carried out by adopting a vibrating screen machine. This process route has several disadvantages: firstly, because the true particle size of the ceramic tile micropowder is very small, the ceramic tile micropowder is easy to stick to a net, block the meshes and reduce the screening efficiency. In particular, the fineness of the ceramic tile micropowder is generally controlled to be less than 5wt% of the sieve residue of 250 meshes, i.e. the D95 is less than 74 μm (the average particle size is about 20 μm after testing). 2. Because hot air drying and micro powder discharging are needed in the dry grinding process, the moisture content of the discharged micro powder is extremely low, generally below 0.5wt%, different particles are easy to rub to generate static electricity, and then suspension is generated, and the screening difficulty is greatly increased. 3. From the equipment perspective, the existing vibrating screen machine is complex in structure and difficult to maintain; and the feeding device is needed in the preamble, the vibrating screen needs an installation platform and the like, which all result in higher equipment cost and operation cost of the current system.
In addition, the existing dry milling process is generally completed by a vertical mill, which generally comprises a vertical mill, a hot air blower, a dust collector and a dust collector blower. Wherein, a powder concentrator (a cylindrical grid structure) is also arranged in the vertical mill. The grain size of the obtained micro powder is determined by the air supply quantity of the hot air fan, the rotating speed of the powder concentrator and the size of negative pressure formed by the dust collector fan. For example, when the rotation speed of the powder concentrator is increased, the particle size of the micropowder becomes smaller; if the air output of the hot air fan or the air exhaust of the negative pressure fan is increased, the particle size of the micro powder is increased. On the other hand, heat balance needs to be considered in the vertical mill, namely hot air generated by the hot air fan is needed to dry the ceramic tile raw material, but when the hot air is increased, the grain size of the micro powder is increased, so that the screening pressure of the subsequent process is greatly increased. In addition, considering that the heat balance and the pressure balance inside the vertical mill are balanced, the air volume of the hot air fan is increased, the air suction volume of the fan of the dust collector is also increased, the particle size of the micro powder is further increased, and the later-stage screening pressure is increased. Therefore, the existing dry-process powder-making process is often difficult to utilize a formulation system with high humidity. Generally speaking, the existing dry pulverizing and grinding system is suitable for a formula system with comprehensive water content of feeding lower than 10%.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a miropowder material production system is provided, it can promote screening efficiency, reduces dry process powder process system equipment and drops into, widens dry process powder process system's range of application.
The utility model discloses the technical problem who still remains to solve lies in, provides a dry process powder process system.
In order to solve the technical problem, the utility model provides a miropowder material production system for pottery brick dry process powder process system includes: the device comprises a hot air fan, a vertical mill, a dust collector and a negative pressure fan; the hot air fan and the vertical mill, the vertical mill and the dust collector, and the dust collector and the negative pressure fan are communicated through air pipes; the air inlet channel of the dust collector is internally provided with a screen, so that the dust-containing gas entering the dust collector from the air pipe is filtered by the screen and then enters the dust collector for dust removal.
As an improvement of the technical proposal, the dust collector comprises a shell, a wind shield, a cloth bag and a hopper,
the cloth bag is arranged between the wind shield and the shell, and one side of the wind shield is provided with a filtering air channel so that the micro-powder-containing gas filtered by the screen enters the cloth bag;
the hopper is arranged below the cloth bag, so that the micro powder attached to the surface of the cloth bag falls into the hopper.
As an improvement of the technical scheme, one end of the screen is fixedly connected with the wind shield, and the other end of the screen is fixedly connected with the shell.
As an improvement of the technical scheme, a coarse powder discharge channel is formed between the screen and the shell.
As an improvement of the technical scheme, the mesh number of the screen is 50-100 meshes.
As an improvement of the technical scheme, the screen is arranged obliquely, and the inclination angle of the screen is 60-80 degrees.
As the improvement of the technical proposal, the device also comprises a discharge valve and a discharge belt, wherein the discharge valve is arranged at the bottom of the hopper; the discharging belt is arranged below the discharging valve.
As an improvement of the technical scheme, a powder conveying device is arranged in the coarse powder discharge channel.
Correspondingly, the utility model also discloses a pottery brick dry process powder process system, it includes foretell miropowder material production system.
Implement the utility model discloses, following beneficial effect has:
1. the utility model discloses in, set up the screen cloth in the inlet air channel of dust arrester, its negative pressure that utilizes the fan to form accomplishes the screening, has promoted screening efficiency, has effectively prevented stifled net, stopper net. Meanwhile, a screening system is not needed to be additionally arranged in the follow-up process, so that the investment of equipment is reduced, and the operation cost of a dry pulverizing system is reduced.
2. The utility model discloses in, set up the screen cloth in the inlet air duct of dust arrester, sieve dirty gas through the screen cloth, dust volume content is lower in this kind of dirty gas, and screening pressure is little, has also promoted the efficiency of screening. On the basis, the air draft of the negative pressure fan and the air supply volume of the hot air fan can be improved, and therefore the micro powder production system in the application can be suitable for a formula system with higher water content. Specifically, through the experiment, the utility model provides a miropowder material production system is applicable in that the biggest feeding moisture content is 17wt%.
Drawings
Fig. 1 is a schematic structural diagram of a fine powder production system according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a dust collector and a negative pressure fan according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings. Only this statement, the utility model discloses the upper and lower, left and right, preceding, back, inside and outside etc. position words that appear or will appear in the text only use the utility model discloses an attached drawing is the benchmark, and it is not right the utility model discloses a concrete restriction.
Referring to fig. 1 and 2, the present embodiment provides a micro powder production system for a ceramic tile dry-process pulverizing system, including: a hot air blower (not shown in the drawings), a vertical mill 1, a dust collector 2, and a negative pressure blower 3; wherein, the hot air blower is communicated with the vertical mill 1, the vertical mill 1 is communicated with the dust collector 2, and the dust collector 2 is communicated with the negative pressure blower 3 through air pipes. Wherein, the air inlet channel of the dust collector 2 is provided with a screen 21, so that the dust-containing gas entering the dust collector from the air pipe is firstly filtered by the screen and then enters the dust collector for dust removal. Based on the micro powder production system, the screening system of the original dry powder making system is arranged in front of the micro powder system, the object facing the screening is dust-containing gas, the powder content is relatively low, friction of each micro powder particle in the dust-containing gas is small, and the screening difficulty is small; and the screening efficiency is improved due to the fact that the screening is carried out under the traction of the negative pressure fan. The screening pressure is low, so that the air inlet quantity of the hot air fan and the air suction quantity of the negative pressure fan 3 can be correspondingly increased, and the micro powder production system can be suitable for a formula system with higher water content.
Specifically, referring to fig. 2, the dust collector 2 includes a housing 22, a wind guard 23, a cloth bag 24, and a hopper 25; wherein, an air inlet 321 is arranged at one side of the shell 22, the shell 22 and the wind shield 31 enclose to form an air inlet channel 222 and a filter cavity 223, the screen 21 is arranged in the air inlet channel 222, and the cloth bag 24 is arranged in the filter cavity 223; a filtered air passage 224 is provided on one side (left and right sides or bottom) of the wind deflector 31. The dust-containing gas enters an air inlet channel 322 formed by enclosing the shell 22 and the wind shield 23 through an air inlet 321, is filtered by a screen 21 and then enters a filter cavity 223 through a filter air channel 224, and is filtered by a cloth bag, and the micro powder is adhered to the surface of the cloth bag and then falls into a hopper 25 below the shell 22 under the action of pulses.
Specifically, in the embodiment, two filter chambers 223 are provided in the housing 22, and the air intake passage 222 is provided between the filter chambers 223. In another embodiment of the present invention, one or more filter cavities 223 may be provided.
Specifically, the screen 21 is fixedly connected with the wind shield. Preferably, one end of the screen 21 is fixedly connected to the wind deflector 23, and the other end is fixedly connected to the housing 34. So that a coarse powder discharge passage 225 is formed between the housing 22 and the screen 21, and the coarse powder sieved by the screen 21 is discharged out of the dust collector 2 through the coarse powder discharge passage 225. Further, a powder conveying device such as a belt, an air conveying chute, a screw conveyor, etc., but not limited thereto, may be further provided in the coarse powder discharge passage 225 to accelerate the discharge efficiency of the coarse powder.
Specifically, the mesh size of the screen 21 is 50-100 mesh, but not limited thereto, and those skilled in the art can determine the mesh size according to the mesh size of the slurry commonly used in the ceramic tile field. Illustratively, the mesh size of the screen is 50 mesh, 60 mesh, 80 mesh, or 100 mesh.
Specifically, the screen 21 is disposed to be inclined at an angle of 60 to 80 ° with respect to the horizontal plane, but is not limited thereto.
Specifically, in an embodiment of the present invention, the fine powder production system further includes a discharge valve 4 and a discharge belt 5; wherein, the discharge valve 4 is arranged at the bottom of the hopper 25 to discharge the micro powder in the hopper 25, and the discharge belt 5 is arranged below the hopper 25 to convey the micro powder to the next process.
Correspondingly, the utility model also provides a miropowder production method for producing the used miropowder of ceramic brick dry process system, it includes following step:
s1: mixing various raw materials, and grinding and sorting by using a vertical mill to obtain dust-containing gas;
s2: the dust-containing gas enters the dust collector through the air pipe under the negative pressure formed by the negative pressure fan;
s3: sieving the dust-containing gas entering the dust collector by a screen in the dust collector to obtain coarse powder and gas containing micro powder;
s4: and (3) dedusting the gas containing the micro-powder by a dust collector to obtain a micro-powder finished product.
To sum up, based on above-mentioned technical scheme's miropowder production system sets up the screen cloth in the inlet air channel of dust arrester, and it utilizes the negative pressure that the fan formed to accomplish the screening, has promoted screening efficiency, has effectively prevented stifled net, stopper net. Meanwhile, a screening system is not needed to be additionally arranged in the follow-up process, so that the investment of equipment is reduced, and the operation cost of a dry pulverizing system is reduced. In addition, the dust-containing gas is screened through the screen, the dust content in the dust-containing gas is lower, the screening pressure is small, and the screening efficiency is also improved. On the basis, the air draft of the negative pressure fan and the air supply volume of the hot air fan can be improved, and therefore the micro powder production system in the application can be suitable for a formula system with higher water content. Specifically, through the experiment, the utility model provides a miropowder material production system is applicable in that the biggest feeding moisture content is 17wt%.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.
Claims (9)
1. A micro-powder production system is used for a ceramic tile dry-process powder-making system and comprises: the device comprises a hot air fan, a vertical mill, a dust collector and a negative pressure fan; the hot air fan and the vertical mill, the vertical mill and the dust collector, and the dust collector and the negative pressure fan are communicated through air pipes; the dust collector is characterized in that a screen is arranged in an air inlet channel of the dust collector, so that dust-containing gas entering the dust collector from an air pipe is filtered by the screen and then enters the dust collector for dust removal.
2. The micropowder production system of claim 1 wherein the dust collector comprises a housing, a wind screen, a cloth bag, and a hopper,
the cloth bag is arranged between the wind shield and the shell, and one side of the wind shield is provided with a filtering air channel so that the micro-powder-containing gas filtered by the screen enters the cloth bag;
the hopper is arranged below the cloth bag, so that the micro powder attached to the surface of the cloth bag falls into the hopper.
3. The micro powder production system of claim 2, wherein one end of the screen is fixedly connected with the wind shield, and the other end is fixedly connected with the housing.
4. The micropowder production system of claim 3 wherein a coarse powder discharge passage is formed between the screen and the housing.
5. The micropowder production system of claim 1, wherein the mesh number of the screen is 50 to 100 mesh.
6. The micropowder production system of claim 1, wherein the screen is inclined at an angle of 60 to 80 °.
7. The micro powder production system of claim 2, further comprising a discharge valve and a discharge belt, wherein the discharge valve is arranged at the bottom of the hopper; the discharging belt is arranged below the discharging valve.
8. The micropowder production system of claim 4 wherein a powder conveyor is provided in the coarse powder discharge passage.
9. A dry milling system, characterized in that the dry milling system comprises the micro powder production system of any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221484145.XU CN218308473U (en) | 2022-06-14 | 2022-06-14 | Micro powder production system and dry powder making system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221484145.XU CN218308473U (en) | 2022-06-14 | 2022-06-14 | Micro powder production system and dry powder making system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218308473U true CN218308473U (en) | 2023-01-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221484145.XU Withdrawn - After Issue CN218308473U (en) | 2022-06-14 | 2022-06-14 | Micro powder production system and dry powder making system |
Country Status (1)
| Country | Link |
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| CN (1) | CN218308473U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115041290A (en) * | 2022-06-14 | 2022-09-13 | 佛山市博晖机电有限公司 | Micro powder production system and production method and dry powder making system |
-
2022
- 2022-06-14 CN CN202221484145.XU patent/CN218308473U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115041290A (en) * | 2022-06-14 | 2022-09-13 | 佛山市博晖机电有限公司 | Micro powder production system and production method and dry powder making system |
| CN115041290B (en) * | 2022-06-14 | 2024-03-29 | 佛山市博晖机电有限公司 | Micro powder production system and production method and dry powder preparation system |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20230117 Effective date of abandoning: 20240329 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20230117 Effective date of abandoning: 20240329 |