CN215196948U - Hydrothermal reaction kettle for hydrothermal synthesis of pressure-sensitive ceramic doping material - Google Patents
Hydrothermal reaction kettle for hydrothermal synthesis of pressure-sensitive ceramic doping material Download PDFInfo
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- CN215196948U CN215196948U CN202121457226.6U CN202121457226U CN215196948U CN 215196948 U CN215196948 U CN 215196948U CN 202121457226 U CN202121457226 U CN 202121457226U CN 215196948 U CN215196948 U CN 215196948U
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Abstract
The utility model discloses a hydrothermal reaction kettle for pressure-sensitive ceramic doped material hydrothermal synthesis, which comprises a kettle body, wherein the outer side of the kettle body is provided with a sandwich cover shell, an electric heater is arranged inside the sandwich cover shell, and the outer side of the sandwich cover shell is provided with a heat insulation layer; a material inlet and a temperature detector are arranged above the kettle body, a discharging pipe is arranged at the axis of the bottom of the kettle body, a stirring shaft is arranged above the discharging pipe, and stirring blades are arranged around the stirring shaft; the (mixing) shaft lower extreme is equipped with and arranges material pipe complex end cap, is connected with agitator motor behind the roof that the upper end activity runs through the cauldron body, and the agitator motor outside is equipped with the support frame of fixing at cauldron body top, and the top of support frame is fixed with the lift cylinder, and the telescopic shaft of lift cylinder is vertical to be moved down and runs through fixed connection behind the support frame on agitator motor. The utility model has the characteristics of difficult blockage and full material mixing; in addition, the device also has the characteristics of simple structure and reasonable design.
Description
Technical Field
The utility model relates to a hydrothermal reaction kettle, in particular to a hydrothermal reaction kettle for pressure-sensitive ceramic doping material hydrothermal synthesis.
Background
The pressure sensitive ceramic mainly comprises SiC and TiO2、SrTiO3And ZnO, but the ZnO voltage-sensitive ceramic has wide application and good performance, and because the ZnO voltage-sensitive ceramic has better voltage-sensitive characteristic, the ZnO voltage-sensitive ceramic has wide application in various devices such as power systems, electronic circuits, household appliances and the like, and is especially most prominent in the aspects of high-performance surge absorption, overvoltage protection, superconducting performance and gapless arresters.
At present, about 10 oxides are doped into ZnO as a main material, and the ZnO voltage-sensitive lightning protection chip is prepared by ball milling, granulating, molding and sintering processes. However, the doping amount of some elements is small, the elements are not easy to be uniformly mixed, and the consistency of the product is seriously influenced. In order to improve the uniformity and electrical property of the ZnO voltage-sensitive lightning protection chip, researchers adopt a hydrothermal synthesis technology for the doping material, namely, the raw material components are pre-reacted through hydrothermal reaction, so that all elements are fully mixed.
The most direct equipment for hydrothermal reaction is a hydrothermal reaction kettle, and raw materials in the reaction kettle are subjected to hydrothermal reaction in a high-temperature and high-pressure environment to form uniformly mixed ultrafine powder. Hydrothermal reation kettle that laboratory research was used is simple tubbiness structure usually, does not have auxiliary structure such as other row's material pipe, and the material is emptyd out after the reaction is accomplished can, but reation kettle is bulky when the industry is large-scale production, can not emptys, and the material that once only adds is more simultaneously, consequently, need set up the bin outlet in reation kettle's bottom, discharges the material through the bin outlet. The technical problems exist are as follows: the bin outlet has certain degree of depth relatively the bottom of reation kettle usually, and partial material can sink in the bin outlet after the material is added, and this partial material can not be along with solution system circulation flow together usually, and easy caking causes the bin outlet to block up after long-time reaction, simultaneously, because the doping amount of some doping elements is very little itself when pressure sensitive ceramic prepares, if the element of this part sinks in the bin outlet not fully mixed with other elements in the system, then cause the material to mix inhomogeneous easily, can not reach the purpose of hydrothermal reaction preparation pressure sensitive ceramic precursor powder. Therefore, it is necessary to design a hydrothermal reaction kettle which is not easy to block and can fully mix materials.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a hydrothermal reaction kettle for pressure sensitive ceramic doping material hydrothermal synthesis. The utility model has the characteristics of difficult blockage and full material mixing; in addition, the device also has the characteristics of simple structure and reasonable design.
The technical scheme of the utility model: a hydrothermal reaction kettle for hydrothermal synthesis of pressure-sensitive ceramic doping materials comprises a kettle body, wherein an interlayer housing is arranged on the outer side of the kettle body, an electric heater is arranged inside the interlayer housing, and a heat insulation layer is arranged on the outer side of the interlayer housing;
a material inlet and a temperature detector are arranged above the kettle body, a discharging pipe is arranged at the axis of the bottom of the kettle body, a stirring shaft is arranged above the discharging pipe, and stirring blades are arranged around the stirring shaft;
the (mixing) shaft lower extreme is equipped with and arranges material pipe complex end cap, is connected with agitator motor behind the roof that the upper end activity runs through the cauldron body, and the agitator motor outside is equipped with the support frame of fixing at cauldron body top, and the top of support frame is fixed with the lift cylinder, and the telescopic shaft of lift cylinder is vertical to be moved down and runs through fixed connection behind the support frame on agitator motor.
According to the hydrothermal reaction kettle for hydrothermal synthesis of the pressure-sensitive ceramic doping material, the plug is in an inverted truncated cone shape, and the upper end of the discharge pipe is in a funnel shape matched with the plug.
In the hydrothermal reaction kettle for hydrothermal synthesis of the pressure-sensitive ceramic doping material, the plug is connected with the stirring shaft through the bearing.
According to the hydrothermal reaction kettle for hydrothermal synthesis of the pressure-sensitive ceramic doping material, the circumferential direction of the plug is provided with the annular groove, and the annular groove is internally provided with the sealing rubber ring.
In the hydrothermal reaction kettle for hydrothermal synthesis of the pressure-sensitive ceramic doping material, the outer side surface of the sealing rubber ring is higher than the outer side surface of the plug.
In the hydrothermal reaction kettle for hydrothermal synthesis of the pressure-sensitive ceramic doping material, the annular grooves and the sealing rubber rings are provided with a plurality of groups and are distributed in an up-down arrangement, wherein the uppermost group of annular grooves and the sealing rubber rings are positioned at the top end of the side surface of the circular truncated cone of the plug.
According to the hydrothermal reaction kettle for hydrothermal synthesis of the pressure-sensitive ceramic doping material, the support frame is provided with the longitudinal limiting groove, the side face of the stirring motor is fixedly connected with the limiting plate, and one end of the limiting plate is slidably connected in the limiting groove.
The utility model has the advantages that:
1. the utility model discloses a lower extreme at the (mixing) shaft sets up the end cap to adjust the lift of (mixing) shaft with lift cylinder, when not influencing row material pipe and normally arrange the material, still can avoid material to get into in the reaction sequence material and arrange the material pipe, have arrange the difficult advantage that blocks up and the material mixes more abundant of material pipe.
2. The utility model discloses a carry out special design to end cap and the shape of arranging the material pipe to installation sealing rubber circle, the shutoff process is more smooth, and sealing performance is better, has simple structure, reasonable in design's advantage.
3. The utility model discloses a set up the spacing groove on the support frame to utilize the limiting plate to carry on spacingly to agitator motor, avoided stirring in-process agitator motor to rotate, have reasonable in design's advantage equally.
To sum up, the utility model has the advantages of be difficult for blockking up, the material mixes fully, simple structure, reasonable in design.
Drawings
FIG. 1 is a schematic structural diagram of the reaction of the present invention;
FIG. 2 is a schematic structural diagram of the utility model after discharging;
FIG. 3 is a schematic structural view of the plug;
figure 4 is a cross-sectional view of the plug.
Description of reference numerals: 1-kettle body, 2-interlayer housing, 3-electric heater, 4-heat preservation and insulation layer, 5-material inlet, 6-temperature detector, 7-discharge pipe, 8-stirring shaft, 9-stirring blade, 10-plug, 11-stirring motor, 12-support frame, 13-lifting cylinder, 14-telescopic shaft, 15-bearing, 16-annular groove, 17-sealing rubber ring, 18-limiting groove and 19-limiting plate.
Detailed Description
The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.
The embodiment of the utility model provides a:
a hydrothermal reaction kettle for hydrothermal synthesis of pressure-sensitive ceramic doping materials is shown in attached figures 1-4 and comprises a kettle body 1, wherein an interlayer housing 2 is arranged on the outer side of the kettle body 1, an electric heater 3 is arranged inside the interlayer housing 2 and used for heating the interior of the kettle body 1, and a heat preservation and insulation layer 4 is arranged on the outer side of the interlayer housing 2 and used for heat preservation and insulation;
a material inlet 5 and a temperature detector 6 are arranged above the kettle body 1, a discharging pipe 7 is arranged at the axis of the bottom, a stirring shaft 8 is arranged above the discharging pipe 7, and stirring blades 9 are arranged around the stirring shaft 8;
the lower end of the stirring shaft 8 is provided with a plug 10 matched with the discharge pipe 7, the upper end of the stirring shaft is movably connected with a stirring motor 11 after penetrating through the top wall of the kettle body 1, the outer side of the stirring motor 11 is provided with a support frame 12 fixed at the top of the kettle body 1, the top of the support frame 12 is fixed with a lifting cylinder 13, and a telescopic shaft 14 of the lifting cylinder 13 is vertically and downwards movably connected on the stirring motor 11 after penetrating through the support frame 12.
When the device works, the lifting cylinder 13 is started firstly, the stirring motor 11 and the stirring shaft 8 are pushed downwards together, the plug 10 is inserted into the discharge pipe 7, and the discharge pipe 7 is plugged; then, the raw material components of the pressure-sensitive ceramic are put into the kettle body 1 from the material inlet 5 according to the proportion, the material inlet 5 is sealed by a cover plate, and the electric heater 3 and the stirring motor 11 are started to heat and react the materials in the kettle body 1 in a stirring state. After the reaction is finished, stopping the stirring motor 11 and the electric heater 3, starting the lifting cylinder 13 to lift the stirring motor 11 and the stirring shaft 8 upwards, separating the plug 10 from the discharge pipe 7, and opening a discharge valve on a pipeline connected with the discharge pipe 7 to discharge the materials; as the materials can not enter the discharging pipe 7 in the whole feeding and reaction process, and particularly the solid powder does not enter the discharging pipe 7, the blockage of the discharging pipe can not be caused, and all the materials can fully flow in the system to complete uniform mixing.
Further, end cap 10 is inverted circular truncated cone, arrange the upper end of material pipe 7 for with end cap 10 complex infundibulate, inverted circular truncated cone and the cooperation of infundibulate structure can make end cap 10 more smooth entering arrange in the material pipe 7.
Furthermore, the plug 10 is connected with the stirring shaft 8 through a bearing 15, and when the stirring shaft 8 rotates, the plug 10 is in a static state, so that the rotation friction between the plug 10 and the discharge pipe 7 is avoided.
Furthermore, the circumferential direction of the plug 10 is provided with an annular groove 16, the annular groove 16 is internally provided with a sealing rubber ring 17, and the sealing rubber ring 17 can improve the sealing effect and prevent other liquids except solid powder from entering the discharge pipe 7.
Furthermore, the outer side surface of the sealing rubber ring 17 is higher than the outer side surface of the plug 10, and when the plug 10 is pressed down, the sealing rubber ring 17 is firstly extruded to be tightly attached to the inner wall of the discharge pipe 7, so that the sealing performance can be further ensured.
Furthermore, a plurality of groups of annular grooves 16 and sealing rubber rings 17 are arranged in an up-down arrangement, wherein the uppermost group of annular grooves 16 and sealing rubber rings 17 are positioned at the top end of the circular truncated cone side surface of the plug 10.
Further, be equipped with fore-and-aft spacing groove 18 on the support frame 12, agitator motor 11's side fixedly connected with limiting plate 19, limiting plate 19's one end sliding connection is in spacing groove 18, and when agitator motor 11 reciprocated, limiting plate 19 can reciprocate in spacing groove 18, and agitator motor 11 during operation, limiting plate 19 can block agitator motor 11 and rotate in the opposite direction that the reaction force when (mixing) shaft 8 rotated leads to, makes agitator motor 11 be in fixed position all the time.
The above description is only for the purpose of illustrating the present invention and the appended claims, and the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (7)
1. A hydrothermal reaction kettle for hydrothermal synthesis of pressure-sensitive ceramic doping materials is characterized in that: comprises a kettle body (1), wherein an interlayer housing (2) is arranged on the outer side of the kettle body (1), an electric heater (3) is arranged in the interlayer housing (2), and a heat insulation layer (4) is arranged on the outer side of the interlayer housing (2);
a material inlet (5) and a temperature detector (6) are arranged above the kettle body (1), a discharging pipe (7) is arranged at the axis of the bottom, a stirring shaft (8) is arranged above the discharging pipe (7), and stirring blades (9) are arranged around the stirring shaft (8);
the stirring shaft (8) lower extreme be equipped with arrange material pipe (7) complex end cap (10), be connected with agitator motor (11) after the roof of the cauldron body (1) is run through in the activity of upper end, agitator motor (11) outside is equipped with and fixes support frame (12) at the cauldron body (1) top, and the top of support frame (12) is fixed with lift cylinder (13), and the telescopic shaft (14) vertical downward activity of lift cylinder (13) runs through support frame (12) back fixed connection on agitator motor (11).
2. The hydrothermal reaction kettle for hydrothermal synthesis of pressure-sensitive ceramic doping material according to claim 1, characterized in that: the plug (10) is in an inverted circular truncated cone shape, and the upper end of the discharge pipe (7) is in a funnel shape matched with the plug (10).
3. The hydrothermal reaction kettle for hydrothermal synthesis of pressure-sensitive ceramic doping material according to claim 2, characterized in that: the plug (10) is connected with the stirring shaft (8) through a bearing (15).
4. The hydrothermal reaction kettle for hydrothermal synthesis of pressure-sensitive ceramic doping material according to claim 3, characterized in that: an annular groove (16) is formed in the circumferential direction of the plug (10), and a sealing rubber ring (17) is arranged in the annular groove (16).
5. The hydrothermal reaction kettle for hydrothermal synthesis of pressure-sensitive ceramic doping material according to claim 4, characterized in that: the outer side surface of the sealing rubber ring (17) is higher than the outer side surface of the plug (10).
6. The hydrothermal reaction kettle for hydrothermal synthesis of pressure-sensitive ceramic doping material according to claim 4, characterized in that: the annular grooves (16) and the sealing rubber rings (17) are arranged in multiple groups and are distributed in an up-down arrangement mode, wherein the uppermost group of annular grooves (16) and the sealing rubber rings (17) are located at the top end of the side face of the circular truncated cone of the plug (10).
7. The hydrothermal reaction kettle for hydrothermal synthesis of pressure-sensitive ceramic doping material according to claim 1, characterized in that: be equipped with fore-and-aft spacing groove (18) on support frame (12), the side fixedly connected with limiting plate (19) of agitator motor (11), the one end sliding connection of limiting plate (19) is in spacing groove (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121457226.6U CN215196948U (en) | 2021-06-29 | 2021-06-29 | Hydrothermal reaction kettle for hydrothermal synthesis of pressure-sensitive ceramic doping material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121457226.6U CN215196948U (en) | 2021-06-29 | 2021-06-29 | Hydrothermal reaction kettle for hydrothermal synthesis of pressure-sensitive ceramic doping material |
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| CN215196948U true CN215196948U (en) | 2021-12-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114713172A (en) * | 2022-04-15 | 2022-07-08 | 南通宏申化工有限公司 | Even colour agent reation kettle for production and processing with prevent blockking up protection |
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2021
- 2021-06-29 CN CN202121457226.6U patent/CN215196948U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114713172A (en) * | 2022-04-15 | 2022-07-08 | 南通宏申化工有限公司 | Even colour agent reation kettle for production and processing with prevent blockking up protection |
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