CN219991458U - Ceramic tile powder production system - Google Patents
Ceramic tile powder production system Download PDFInfo
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- CN219991458U CN219991458U CN202321110294.4U CN202321110294U CN219991458U CN 219991458 U CN219991458 U CN 219991458U CN 202321110294 U CN202321110294 U CN 202321110294U CN 219991458 U CN219991458 U CN 219991458U
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- powder
- spray drying
- ceramic tile
- slurry
- hot air
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- 239000000843 powder Substances 0.000 title claims abstract description 62
- 239000000919 ceramic Substances 0.000 title claims abstract description 31
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 238000001694 spray drying Methods 0.000 claims abstract description 40
- 239000002002 slurry Substances 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 238000001035 drying Methods 0.000 claims abstract description 23
- 239000002918 waste heat Substances 0.000 claims abstract description 19
- 238000005243 fluidization Methods 0.000 claims abstract description 16
- 238000000498 ball milling Methods 0.000 claims abstract description 14
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 238000005245 sintering Methods 0.000 claims abstract description 6
- 238000000227 grinding Methods 0.000 claims abstract description 5
- 238000002156 mixing Methods 0.000 claims abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 22
- 229910052742 iron Inorganic materials 0.000 claims description 11
- 238000012216 screening Methods 0.000 claims description 10
- 238000011084 recovery Methods 0.000 claims description 7
- 239000007789 gas Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000003595 mist Substances 0.000 claims description 5
- 238000000265 homogenisation Methods 0.000 claims description 2
- 230000002431 foraging effect Effects 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 description 8
- 230000006872 improvement Effects 0.000 description 7
- 238000002360 preparation method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000010298 pulverizing process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 2
- 239000011449 brick Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000001238 wet grinding Methods 0.000 description 1
Landscapes
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
The utility model discloses a ceramic tile powder production system, and relates to the field of ceramic tile production equipment. Specifically, the ceramic tile powder production system includes: the ball milling device is used for mixing and grinding raw materials into slurry; a spray drying device for drying the slurry to a first powder of a first preset water content; the vibration fluidization drying device is used for drying the first powder to a second powder with a second preset water content; and the waste heat device is used for providing first hot air for the vibration fluidization drying device and is communicated with the ceramic tile sintering kiln. By implementing the utility model, ceramic tile powder with good performances can be obtained, and the comprehensive energy consumption for producing the ceramic tile powder is reduced.
Description
Technical Field
The utility model relates to the field of ceramic tile production equipment, in particular to a ceramic tile powder production system.
Background
In the prior art, the preparation methods of ceramic tile powder generally include the following types, namely the traditional wet process powder preparation technology which is adopted in a large amount, namely, ball milling of various raw materials to obtain slurry with the water content of 33-37 wt%, and spray drying to obtain powder with the water content of 5.5-7%. The powder preparation process is most mature, and the powder has good performance but high energy consumption. The other is a dry powder process, which generally refers to a process of grinding various raw materials (generally using a vertical mill) and then adding water to granulate into powder with a certain grain size, and some manufacturers are further added with a drying and shaping process in the follow-up process. The powder process has low energy consumption, but the powder is finer and has poor fluidity, and is often difficult to be suitable for producing ceramic bricks with low water absorption rate. Therefore, the existing pulverizing process is difficult to simultaneously reduce energy consumption and maintain good powder performance.
On the other hand, the temperature of the waste heat hot air generated by the ceramic tile sintering kiln is high (100-300 ℃), and the direct discharge not only causes pollution, but also wastes heat. At present, the technology for recovering the waste heat uses waste heat hot air as combustion supporting air for the hot blast stove of the spray drying tower, but the usage amount is limited, and the large-scale utilization of the waste heat of the kiln is difficult to realize.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a ceramic tile powder production system which can reduce the powder preparation energy consumption and has good performances of the prepared powder.
In order to solve the technical problems, the utility model provides a ceramic tile powder production system, which comprises:
the ball milling device is used for mixing and grinding raw materials into slurry;
a spray drying device for drying the slurry to a first powder of a first preset water content;
the vibration fluidization drying device is used for drying the first powder to a second powder with a second preset water content;
and the waste heat device is used for providing first hot air for the vibration fluidization drying device and is communicated with the ceramic tile sintering kiln.
As an improvement of the above technical solution, the spray drying apparatus includes:
a spray drying tower;
the atomizing device is arranged in the spray drying tower and is used for atomizing the homogenized slurry into mist drops;
the heating device is arranged outside the spray drying tower and is used for providing second hot air for the spray drying tower;
the temperature of the second hot air is 400-600 ℃.
As an improvement of the technical scheme, the temperature of the second hot air is 400-500 ℃.
As an improvement of the above technical solution, the spray drying apparatus further includes: a first recovery device for recovering the fine powder produced by the spray drying device.
As an improvement of the above technical solution, the vibration fluidization drying apparatus includes:
the vibrating fluidized bed is provided with at least one hot air port for the first hot air to enter;
and the second recovery device is used for recovering tail gas and fine powder of the vibrating fluidized bed.
As an improvement of the technical scheme, the water content of the slurry is 33-39 wt%, the first preset water content is 12-18 wt% and the second preset water content is 5-8 wt%.
As an improvement of the technical scheme, the temperature of the first hot air is 100-300 ℃.
As an improvement of the technical proposal, the device also comprises a homogenizing device for ageing and homogenizing the slurry;
a screening device for screening the homogenized slurry;
the iron removing device is used for removing iron from the screened slurry;
the homogenizing device, the screening device and the iron removing device are sequentially arranged between the ball milling device and the spray drying device.
The implementation of the utility model has the following beneficial effects:
the ceramic tile powder production system of the utility model adopts a spray drying device to dry slurry, and adopts a vibration fluidization device to carry out secondary drying. Based on the working procedure, the obtained ceramic tile powder has reasonable grain composition and good fluidity, and can meet the production requirements of various ceramic tiles. In addition, the vibrating fluidization device adopts waste heat hot air of the kiln, so that comprehensive energy consumption is effectively reduced.
Drawings
FIG. 1 is a schematic diagram of a ceramic tile powder production system in accordance with an embodiment of the present utility model;
FIG. 2 is a schematic diagram of a spray drying apparatus according to an embodiment of the present utility model;
FIG. 3 is a schematic diagram of a vibratory fluidization apparatus in accordance with an embodiment of the utility model.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings, for the purpose of making the objects, technical solutions and advantages of the present utility model more apparent. It is only stated that the terms of orientation such as up, down, left, right, front, back, inner, outer, etc. used in this document or the imminent present utility model, are used only with reference to the drawings of the present utility model, and are not meant to be limiting in any way.
Referring to fig. 1, the present utility model provides a ceramic tile powder production system, which includes a ball milling device 1 for mixing various raw materials and grinding into slurry; a spray drying device 2 for drying the slurry to a first powder of a first preset water content; a vibratory fluidization drying device 3 for drying the first powder to a second powder with a second preset water content and a waste heat device 4 for providing the vibratory fluidization drying device with first hot air, wherein the waste heat device 4 is communicated with the ceramic tile sintering kiln.
Wherein the water content of the slurry is 33-39 wt%, and the production system is suitable for slurry with higher water content. The formula with high water content is suitable for production by adopting a continuous ball mill, and the continuous ball milling efficiency is effectively improved.
In the conventional wet milling process (ball milling-spray drying), the water content of the slurry is generally controlled to be 37% or less. Mainly because: 1. the water content of the slurry is too high, the energy consumption of spray drying is too high, and the cost is high. 2. When the water content of the slurry is higher, the obtained powder particles are finer, and the exhaust performance and the fluidity are poor. For example, it is clearly pointed out in the relevant literature, "discussion of factors influencing the particle size distribution of spray-dried powders" that a change in the water content from 36% to 38% leads to a deterioration in the particle size distribution. Therefore, those skilled in the art know that improving the water content can improve the ball milling efficiency, but the water content of the slurry is still controlled below 37wt% on the basis of comprehensively considering the ball milling energy consumption, the spraying energy consumption and the powder performance. The utility model uses the spray primary drying-fluidization secondary drying (kiln waste heat) process in the follow-up, reduces the energy consumption in the pulverizing stage, so the water content of the slurry can be considered to be improved, and the ball milling efficiency can be improved.
Wherein the first preset water content is 12-18 wt%, and when the first preset water content is more than 18wt%, the first powder is easy to adhere to the spray drying device 2, and the outlet of the spray drying device is blocked. When the water content is less than 12wt%, the energy-saving effect is poor. The second preset water content is 5-8wt%.
Wherein the spray drying device 2 comprises a spray drying tower 21, an atomizing device 22 for atomizing the homogenized slurry into mist droplets, and a heat supply device 23 for supplying a second hot air to the spray drying tower 21. Wherein the atomizing device 22 is arranged in the spray drying tower 21, and the heating device 23 is arranged outside the spray drying tower 21. The heating device 23 may be a water gas hot blast stove, a coal water slurry hot blast stove, a natural gas hot blast stove, a chain grate stove, a heavy oil hot blast stove, etc., but is not limited thereto. Preferably, in one embodiment of the utility model, the heating device 23 is a natural gas stove.
The temperature of the first hot air is 400 to 600 ℃, and is exemplified by, but not limited to, 415 ℃, 430 ℃, 445 ℃, 460 ℃, 475 ℃, 490 ℃, 505 ℃, 520 ℃, 535 ℃, 550 ℃, 565 ℃, 580 ℃, or 595 ℃. Preferably 400 to 500 ℃, the first powder having the first preset water content can be obtained without changing the structure of the spray drying tower 21 by reducing the temperature of the first hot air.
Preferably, in one embodiment, the spray drying device 2 further comprises a first recovery device 24 for recovering fines produced by the spray drying device.
The vibration fluidized drying device 3 comprises a vibration fluidized bed 31 and a second recovery device 32 for recovering tail gas and fine powder of the vibration fluidized bed 31. The vibrating fluidized bed 31 is provided with at least one hot air inlet 33 for the first hot air.
Wherein the first hot air provided by the waste heat device 4 is waste heat hot air of a ceramic brick kiln, and the temperature of the first hot air is 150-300 ℃. The waste heat hot air can be waste heat hot air obtained after all gases of the ceramic tile sintering kiln are mixed, and also can be kiln flue gas waste heat hot air from a kiln preheating section and tail cooling waste heat hot air from a kiln rapid cooling section, but is not limited to the waste heat hot air.
Preferably, in one embodiment, the hot tuyere 33 comprises a first hot tuyere 331 disposed near the inlet of the vibrating fluidized bed 31 and a second hot tuyere 332 disposed near the outlet of the vibrating fluidized bed 31.
Preferably, in one embodiment, the ceramic tile powder production system further comprises a homogenizing device 5 for ageing and homogenizing the slurry, a screening device 6 for screening the homogenized slurry, and an iron removing device 7 for removing iron from the screened slurry, wherein the homogenizing device 5, the screening device 6 and the iron removing device 7 are sequentially arranged between the ball milling device 1 and the spray drying device 2. Furthermore, a conveying device 8 may be provided between the spray drying device 2 and the vibratory fluidization device 3 to convey the first powder from the spray drying device 2 into the vibratory fluidization device 3.
The working flow of the ceramic tile powder production system in the embodiment is as follows:
the raw materials are added into a ball milling device for ball milling to obtain slurry with the water content of 33-39 wt%, the slurry is aged and homogenized by a homogenization device 5, and is screened by a screening device 6, the slurry is fed into an atomization device 22 of a spray drying tower 21 after iron removal by an iron removal device 7, the slurry is atomized into mist drops by the atomization device 22, the mist drops are dried under the action of second hot air provided by a heat supply device 23 to form first powder with the water content of 12-18 wt%, and fine powder generated in the drying process is recovered by a first recovery device 24. The first powder is conveyed into the vibrating fluidized bed 31 through the conveying device 8, the second powder is dried to the water content of 5-8wt% under the action of the first hot air from the waste heat device 4, and the fine powder and tail gas generated by the vibrating fluidized bed 31 are recycled by the second recycling device 33.
The preparation method of the utility model is compared with the traditional wet pulverizing process and the novel dry pulverizing process (CN 205269568U), and the specific table is shown below.
As can be seen from the table, the production system of the utility model effectively reduces the powder consumed in the preparation process of unit powder. The grain composition and fluidity of the obtained powder are very similar to those of the traditional wet powder preparation, and the production requirements of various ceramic tiles can be met.
While the foregoing is directed to the preferred embodiments of the present utility model, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the utility model, such changes and modifications are also intended to be within the scope of the utility model.
Claims (3)
1. A ceramic tile powder production system, comprising:
the ball milling device is used for mixing and grinding raw materials into slurry;
a spray drying device for drying the slurry to a first powder of a first preset water content;
the vibration fluidization drying device is used for drying the first powder to a second powder with a second preset water content;
the waste heat device is used for providing first hot air for the vibration fluidization drying device and is communicated with the ceramic tile sintering kiln;
wherein the spray drying device comprises:
a spray drying tower;
the atomizing device is arranged in the spray drying tower and is used for atomizing the homogenized slurry into mist drops;
the heating device is arranged outside the spray drying tower and is used for providing second hot air for the spray drying tower;
the vibration fluidization drying device includes:
the vibrating fluidized bed is provided with at least one hot air port for the first hot air to enter;
and the second recovery device is used for recovering tail gas and fine powder of the vibrating fluidized bed.
2. The ceramic tile powder production system of claim 1, wherein the spray drying apparatus further comprises: a first recovery device for recovering the fine powder produced by the spray drying device.
3. The ceramic tile powder production system of claim 1, further comprising a homogenization device for aging and homogenizing the slurry;
a screening device for screening the homogenized slurry;
the iron removing device is used for removing iron from the screened slurry;
the homogenizing device, the screening device and the iron removing device are sequentially arranged between the ball milling device and the spray drying device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321110294.4U CN219991458U (en) | 2023-05-09 | 2023-05-09 | Ceramic tile powder production system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321110294.4U CN219991458U (en) | 2023-05-09 | 2023-05-09 | Ceramic tile powder production system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219991458U true CN219991458U (en) | 2023-11-10 |
Family
ID=88615993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321110294.4U Active CN219991458U (en) | 2023-05-09 | 2023-05-09 | Ceramic tile powder production system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219991458U (en) |
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2023
- 2023-05-09 CN CN202321110294.4U patent/CN219991458U/en active Active
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