CN111516139A - Novel vacuum pug mill and mud section extrusion process - Google Patents
Novel vacuum pug mill and mud section extrusion process Download PDFInfo
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- CN111516139A CN111516139A CN202010492976.0A CN202010492976A CN111516139A CN 111516139 A CN111516139 A CN 111516139A CN 202010492976 A CN202010492976 A CN 202010492976A CN 111516139 A CN111516139 A CN 111516139A
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- mud
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C1/00—Apparatus or methods for obtaining or processing clay
- B28C1/10—Apparatus or methods for obtaining or processing clay for processing clay-containing substances in non-fluid condition ; Plants
- B28C1/14—Apparatus or methods for obtaining or processing clay for processing clay-containing substances in non-fluid condition ; Plants specially adapted for homogenising, comminuting or conditioning clay in non-fluid condition or for separating undesired admixtures therefrom
- B28C1/16—Apparatus or methods for obtaining or processing clay for processing clay-containing substances in non-fluid condition ; Plants specially adapted for homogenising, comminuting or conditioning clay in non-fluid condition or for separating undesired admixtures therefrom for homogenising, e.g. by mixing, kneading ; forcing through slots
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/20—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded
- B28B3/26—Extrusion dies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C1/00—Apparatus or methods for obtaining or processing clay
- B28C1/10—Apparatus or methods for obtaining or processing clay for processing clay-containing substances in non-fluid condition ; Plants
- B28C1/14—Apparatus or methods for obtaining or processing clay for processing clay-containing substances in non-fluid condition ; Plants specially adapted for homogenising, comminuting or conditioning clay in non-fluid condition or for separating undesired admixtures therefrom
- B28C1/22—Apparatus or methods for obtaining or processing clay for processing clay-containing substances in non-fluid condition ; Plants specially adapted for homogenising, comminuting or conditioning clay in non-fluid condition or for separating undesired admixtures therefrom combined with means for conditioning by heating, humidifying, or vacuum treatment, by cooling, by sub-atmospheric pressure treatment
- B28C1/225—Apparatus or methods for obtaining or processing clay for processing clay-containing substances in non-fluid condition ; Plants specially adapted for homogenising, comminuting or conditioning clay in non-fluid condition or for separating undesired admixtures therefrom combined with means for conditioning by heating, humidifying, or vacuum treatment, by cooling, by sub-atmospheric pressure treatment by degassing, de-aerating
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- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
A novel vacuum pug mill and a mud section extrusion process belong to the technical field of porcelain insulator manufacturing. The novel vacuum pugging machine comprises a vacuum chamber, wherein a feed inlet is formed in the top of the vacuum chamber, a horizontally-arranged reamer shaft is arranged at the lower part of the vacuum chamber through a bearing, spiral blades are arranged on the reamer shaft, a mud extruding cylinder is arranged in front of the reamer shaft, and a first horn-shaped extruding cylinder, a second horn-shaped extruding cylinder and a cylindrical extruder nozzle are sequentially arranged in front of the mud extruding cylinder; the first horn-shaped extrusion cylinder is connected with the mud extrusion cylinder through a flange, and the first horn-shaped extrusion cylinder, the second horn-shaped extrusion cylinder and the cylindrical extruder nozzle are sequentially connected through the flange. The invention can reduce the cracking phenomenon of the vacuum extrusion mud section by adding two horn-shaped extrusion cylinders, is beneficial to improving the porcelain performance and ensuring the stable porcelain performance, and realizes the batch production of high-strength porcelain insulators, in particular ultra-high and ultra-high voltage high-strength porcelain insulators.
Description
Technical Field
The invention relates to a technology in the field of porcelain insulator manufacturing equipment, in particular to a novel vacuum pug mill and a mud section extrusion process.
Background
In the industry of porcelain insulators, a vacuum mud extruding section process is also called as a vacuum mud refining process, and the process plays roles in removing air in mud, enhancing compactness and plasticity of the mud and the like. Most of the existing extrusion equipment adopts a cylindrical extruder nozzle 5 as shown in figure 1, and when the extruded mud section is used for manufacturing a high-strength porcelain insulator, the plasticity of cracking and the like is reduced, so that the porcelain property is difficult to achieve the expected effect, the yield of the high-strength porcelain insulator is low, and the batch production capacity is limited.
The present invention has been made to solve the above-mentioned problems occurring in the prior art.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the novel vacuum pug mill and the mud segment extrusion process, which can reduce the cracking phenomenon of a vacuum extrusion mud segment, are favorable for improving the porcelain performance and ensuring the stable porcelain performance, and realize the batch production of high-strength porcelain insulators, in particular ultra-high and extra-high-strength porcelain insulators.
The invention relates to a novel vacuum pugging machine, which comprises a vacuum chamber, wherein a feed inlet is formed in the top of the vacuum chamber, a horizontally-arranged reamer shaft is arranged at the lower part of the vacuum chamber through a bearing, a spiral blade is arranged on the reamer shaft, a mud extruding cylinder is arranged in front of the reamer shaft, and a first horn-shaped extruding cylinder, a second horn-shaped extruding cylinder and a cylindrical extruder nozzle are sequentially arranged in front of the mud extruding cylinder;
in the mud extruding cylinder, a first horn-shaped extruding cylinder is connected with a vacuum chamber through a flange, and the first horn-shaped extruding cylinder, a second horn-shaped extruding cylinder and a cylindrical extruder nozzle are sequentially connected through the flange.
Preferably, along the mud segment extrusion direction, the diameter of the first trumpet-shaped extrusion cylinder is gradually reduced, the diameter of the second trumpet-shaped extrusion cylinder is gradually enlarged, and the diameters of the joint of the first trumpet-shaped extrusion cylinder and the second trumpet-shaped extrusion cylinder are the same.
The invention relates to a mud section extrusion process, which is based on the novel vacuum pug mill, wherein a vacuum chamber is vacuumized to meet the process requirement, a reamer shaft is rotated, a spiral blade pushes mud to a mud extrusion cylinder at the mud extrusion pressure of 6-7MPa, and the mud is further extruded by the pressure of 9-10MPa at the connecting part of a first trumpet-shaped extrusion cylinder and a second trumpet-shaped extrusion cylinder.
Technical effects
Compared with the prior art, when the invention is used for extruding mud segments, moist mud materials subjected to vacuum degassing are extruded and pushed, and are extruded through the two flared extrusion cylinders which are contracted and expanded firstly, the mud materials are strongly compressed at the narrow caliber part in the middle of the two flared extrusion cylinders in the process, the compactness is greatly improved, and then the mud segments with excellent uniformity are obtained by extrusion after the gentle slope resistance is reduced.
Drawings
FIG. 1 is a schematic structural view of a conventional vacuum pug mill;
FIG. 2 is a schematic view of the structure of the vacuum pug mill in embodiment 1;
in the figure:
the device comprises a vacuum chamber 1, a feed inlet 11, a reamer shaft 12, a spiral blade 13, a mud extrusion cylinder 14, a first trumpet-shaped extrusion cylinder 3, a second trumpet-shaped extrusion cylinder 4 and a cylindrical extruder nozzle 5.
Detailed Description
The invention is described in detail below with reference to the drawings and the detailed description.
Example 1
As shown in fig. 2, the present embodiment includes a vacuum chamber 1, a feed inlet 11 is provided at the top of the vacuum chamber 1, a horizontal reamer shaft 12 is provided at the lower part of the vacuum chamber 1 through a bearing, a spiral blade 13 is provided on the reamer shaft 12, a mud-extruding cylinder 14 is provided in front of the reamer shaft 12, and a first trumpet-shaped extruding cylinder 3, a second trumpet-shaped extruding cylinder 4 and a cylindrical extruder nozzle 5 are sequentially arranged in front of the mud-extruding cylinder;
the first horn-shaped extrusion cylinder 3 is connected with the mud extrusion cylinder 1 through a flange, and the first horn-shaped extrusion cylinder 3, the second horn-shaped extrusion cylinder 4 and the cylindrical extruder nozzle 5 are sequentially connected through the flange.
Along mud section extrusion direction, the diameter of first tubaeform extrusion section of thick bamboo reduces gradually, and the diameter of second tubaeform extrusion section of thick bamboo enlargies gradually, and first tubaeform extrusion section of thick bamboo is the same with second tubaeform extrusion section of thick bamboo butt joint department diameter.
The inner wall slope of the first trumpet-shaped extrusion cylinder is 12 degrees, the inner wall slope of the second trumpet-shaped extrusion cylinder is 8 degrees, and further the axial length of the first trumpet-shaped extrusion cylinder is the same as that of the second trumpet-shaped extrusion cylinder.
The buffering of first tubaeform extrusion cylinder as a mud extrusion cylinder has been increased in this embodiment, simultaneously through the cooperation of first tubaeform extrusion cylinder and the tubaeform extrusion cylinder of second for the mud material can be compressed by brute force at both connection positions, improves the compactness, and the homogeneity of mud section is extruded in the gentle slope release resistance of the tubaeform extrusion cylinder of rethread second. The mud squeezing pressure of 6-7MPa originally provided by the vacuum pug mill reaches 9-10MPa at the first trumpet-shaped extruding cylinder and the second trumpet-shaped extruding cylinder, and a mud section with higher quality is obtained on the basis of not changing the operation parameters of the vacuum pug mill.
It is to be emphasized that: the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and all simple modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.
Claims (5)
1. A novel vacuum pugging machine is characterized by comprising a vacuum chamber, wherein a feed inlet is formed in the top of the vacuum chamber, a horizontally arranged reamer shaft is arranged at the lower part of the vacuum chamber through a bearing, a spiral blade is arranged on the reamer shaft, a mud extruding cylinder is arranged in front of the reamer shaft, and a first horn-shaped extruding cylinder, a second horn-shaped extruding cylinder and a cylindrical extruder nozzle are sequentially arranged in front of the mud extruding cylinder;
the first horn-shaped extrusion cylinder is connected with the mud extrusion cylinder through a flange, and the first horn-shaped extrusion cylinder, the second horn-shaped extrusion cylinder and the cylindrical extruder nozzle are sequentially connected through the flange.
2. The novel vacuum pug mill as claimed in claim 1, wherein along the extrusion direction of the pug section, the diameter of the first trumpet-shaped extrusion cylinder is gradually reduced, the diameter of the second trumpet-shaped extrusion cylinder is gradually enlarged, and the diameters of the butt joints of the first trumpet-shaped extrusion cylinder and the second trumpet-shaped extrusion cylinder are the same.
3. The novel vacuum pug mill as claimed in claim 1, wherein the slope of the inner wall of the first trumpet-shaped extruding cylinder is 12 degrees, and the slope of the inner wall of the second trumpet-shaped extruding cylinder is 8 degrees.
4. The novel vacuum pug mill as claimed in claim 3, wherein said first and second flared barrels have the same axial length.
5. A mud section extrusion process is characterized in that a vacuum chamber is vacuumized to the process requirement based on the novel vacuum pug mill as claimed in any one of claims 1 to 4, a reamer shaft is rotated, so that a spiral blade pushes mud to a mud extrusion barrel at the mud extrusion pressure of 6-7MPa, and the mud is further extruded by the pressure of 9-10MPa at the connecting part of a first trumpet-shaped extrusion barrel and a second trumpet-shaped extrusion barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010492976.0A CN111516139A (en) | 2020-06-03 | 2020-06-03 | Novel vacuum pug mill and mud section extrusion process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010492976.0A CN111516139A (en) | 2020-06-03 | 2020-06-03 | Novel vacuum pug mill and mud section extrusion process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111516139A true CN111516139A (en) | 2020-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010492976.0A Pending CN111516139A (en) | 2020-06-03 | 2020-06-03 | Novel vacuum pug mill and mud section extrusion process |
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| Country | Link |
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| CN (1) | CN111516139A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112428419A (en) * | 2020-11-19 | 2021-03-02 | 景德镇陶瓷大学 | Bionic structure drag reduction pugging machine |
| CN114290489A (en) * | 2021-12-22 | 2022-04-08 | 凯龙蓝烽新材料科技有限公司 | Novel extruder head structure |
-
2020
- 2020-06-03 CN CN202010492976.0A patent/CN111516139A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112428419A (en) * | 2020-11-19 | 2021-03-02 | 景德镇陶瓷大学 | Bionic structure drag reduction pugging machine |
| CN114290489A (en) * | 2021-12-22 | 2022-04-08 | 凯龙蓝烽新材料科技有限公司 | Novel extruder head structure |
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