CN112076705A - Double-heat-source vertical reaction kettle - Google Patents
Double-heat-source vertical reaction kettle Download PDFInfo
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- CN112076705A CN112076705A CN202010908841.8A CN202010908841A CN112076705A CN 112076705 A CN112076705 A CN 112076705A CN 202010908841 A CN202010908841 A CN 202010908841A CN 112076705 A CN112076705 A CN 112076705A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
- B01J19/0013—Controlling the temperature of the process
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
- B01J19/0066—Stirrers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
- B01J2219/00076—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements inside the reactor
- B01J2219/00085—Plates; Jackets; Cylinders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00132—Controlling the temperature using electric heating or cooling elements
- B01J2219/00135—Electric resistance heaters
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The invention relates to a double-heat-source vertical reaction kettle which comprises a kettle body, a stirrer, a heat exchanger and a water pump, wherein an electric heater positioned at the bottom of the kettle body is arranged in the kettle body, the stirrer comprises a vertical rotating shaft, a vertical rotating shaft part stirring blade connected to the vertical rotating shaft and a stirring motor driving the vertical rotating shaft to rotate, the heat exchanger comprises a liquid storage disc positioned in the upper end of the kettle body, the liquid storage disc is positioned above an object stored in the kettle body, a liquid outlet is formed in the bottom wall of the liquid storage disc, a liquid inlet cavity is formed in one end of the liquid storage disc, a liquid outlet cavity is formed in the other end of the liquid storage disc, a heating medium inlet is formed in the liquid inlet cavity, a heating medium outlet is formed in the liquid outlet cavity, the liquid inlet cavity and the liquid outlet cavity are communicated through a plurality of heat exchange tubes positioned in the liquid storage disc, and the water. The invention has the advantage that the heating can be stopped immediately after the materials are heated to the set temperature, and solves the problem of inaccurate temperature control of the existing reaction kettle.
Description
Technical Field
The invention relates to a reaction kettle, in particular to a vertical reaction kettle with double heat sources.
Background
The reaction kettle is a container for physical or chemical reaction, and the heating, evaporation, cooling and low-speed mixing functions required by the process are realized through the structural design and parameter configuration of the container. The reation kettle includes the cauldron body and carries out the agitator that stirs to the material that stores in the cauldron body, and the internal electric heater that is located cauldron body bottom that is equipped with of cauldron, agitator include perpendicular pivot, connect perpendicular pivot portion stirring vane and the perpendicular pivot pivoted agitator motor of drive on perpendicular pivot. The existing reaction kettle has the following defects: the electric heater is covered by the material for heating, the surface of the electric heater is still in a high-temperature state after the heating is stopped, and a certain time is needed for cooling, and the material temperature is controlled inaccurately in the heat dissipation and cooling process; when setting up to vertical, the (mixing) shaft only can be designed for following vertical extension, and the gravity of material can not be overcome to the stirring power, and stirring in-process material produces easily to deposit and leads to mixing inhomogeneous.
Disclosure of Invention
The invention aims to provide a double-heat-source vertical reaction kettle which can stop heating immediately after materials are heated to a set temperature, and solves the problem that the residual heat of an electric heater can cause inaccurate temperature control after the conventional reaction kettle is heated to the set temperature and stops heating.
The second purpose of the invention is to further provide a double-heat-source vertical reaction kettle capable of effectively preventing materials from precipitating, and solve the problem that the materials are easy to precipitate because the stirring blades of the existing vertical reaction kettle only can rotate around a vertical shaft.
The technical problem is solved by the following technical scheme: a double-heat source vertical reaction kettle, which comprises a kettle body and a stirrer for stirring materials stored in the kettle body, an electric heater positioned at the bottom of the kettle body is arranged in the kettle body, the stirrer comprises a vertical rotating shaft, a vertical rotating shaft part stirring blade connected on the vertical rotating shaft and a stirring motor driving the vertical rotating shaft to rotate, it is characterized by also comprising a heat exchanger and a water pump, wherein the heat exchanger comprises a liquid storage disc positioned in the upper end of the kettle body, the liquid storage tray is positioned above the object stored in the kettle body, a liquid outlet is arranged on the bottom wall of the liquid storage tray, one end of the liquid storage disc is provided with a liquid inlet cavity, the other end of the liquid storage disc is provided with a liquid outlet cavity, the liquid inlet cavity is provided with a heating medium inlet, the liquid outlet cavity is provided with a heating medium outlet, the liquid inlet cavity is communicated with the liquid outlet cavity through a plurality of heat exchange tubes positioned in the liquid storage disc, and the water suction pump is used for pumping the materials stored in the kettle body into the liquid storage disc; when the materials stored in the kettle body are heated, the electric heater is stopped after the materials in the kettle body are heated to the temperature T1 by the electric heater, the water suction pump is started again, so that the materials in the kettle body circulate through the liquid storage disc and heat media flow through the heat exchange tube, the materials in the kettle body are heated to the required temperature T2, the heat media flow through the heat exchange tube and the water suction pump are stopped after the materials are heated to the temperature T2, and the T1 is smaller than T2. According to the technical scheme, when the material is heated to the temperature which is low in temperature and required by the wall, the electric heater covered by the material is stopped to heat, the heat exchanger is used for heat exchange type heating instead, the electric heater is used for cooling in the heating process of the heat exchanger, and after the material is heated to the required temperature, the heat medium stops flowing through the heat exchange tube (namely, heating is stopped) and the material is stopped from being conveyed to the heat exchanger, so that the heat of the heat source cannot be transferred to the material after the heating is stopped, and the temperature is controlled inaccurately.
Preferably, a liquid pumping channel is arranged in the vertical rotating shaft, the upper end of the vertical rotating shaft can be rotatably arranged in the liquid outlet ring in a penetrating mode, an annular groove extending along the circumferential direction of the vertical rotating shaft is formed in the inner circumferential surface of the liquid outlet ring, the opening of the annular groove is sealed by the vertical rotating shaft, a plurality of vertical rotating shaft part communicating holes for communicating the annular groove with the liquid pumping channel are formed in the circumferential surface of the vertical rotating shaft, a liquid outlet ring part liquid outlet hole penetrating through the surface of the liquid outlet ring is formed in the annular surface, and the inlet end of the water suction pump is connected with the liquid outlet hole of the liquid. When stirring, this messenger's material that draws water circulates to can improve stirring effect, can also prevent that the drawing water of suction pump from interfering the stirring of agitator.
Preferably, the lower end of the liquid pumping channel penetrates through the lower end surface of the vertical rotating shaft to form a liquid inlet, and the liquid inlet is provided with a filter plate. Can prevent the particle blocking of the pumping channel and the pumping pump caused by dissolution and the like.
Preferably, the bottom wall of the kettle body is provided with a scraping strip supported on the lower surface of the filter plate. The filter rotates together when perpendicular pivot is rotatory, and the rotatory result is for making the scraping strip scrape the filter lower surface to prevent that the filter from producing blocking phenomenon.
As preferred, it is connected with the cross rotating shaft to rotate on the vertical rotating shaft, be connected with in the cross rotating shaft and be located draw fluid passage's interior driven bevel gear, the meshing has initiative bevel gear on the driven bevel gear, initiative bevel gear is connected with the vertical rotating shaft who is located draw fluid passage, the rigid coupling has the liquid stream through flowing through the draw fluid passage to drive and use vertical rotating shaft as axle pivoted drive blade in the vertical rotating shaft, be connected with cross axle portion stirring vane in the cross rotating shaft. The material can drive driving vane when flowing through the drawing liquid passageway under the effect of suction pump and rotate to make vertical pivot drive horizontal rotating shaft rotate and drive horizontal rotating shaft portion blade and rotate, the weight that the rotation direction of horizontal rotating shaft portion blade can overcome the material and stir through the material of cauldron body bottom, thereby play the effect that prevents to deposit. The second object of the invention is achieved.
Preferably, every two of the transverse rotating shafts are located on the same straight line, and the two transverse rotating shafts located on the same straight line are driven by the same driven bevel gear. The structure is compact, the running stability and the connection reliability are good.
Preferably, a suspension block is arranged in the liquid pumping channel, and the vertical rotating shaft is rotatably connected to the suspension block. The connection reliability of the vertical rotating shaft can be improved.
Preferably, the stirring motor is in a vertical state, the stirring motor is supported on the top wall of the kettle body through the liquid outlet ring, and the upper end of the vertical rotating shaft is connected with the rotating shaft of the motor. The heat dissipation effect of the motor can be improved.
Preferably, the bottom wall of the liquid storage tray is provided with a heat insulation layer. The accuracy of material temperature control can be further improved.
The invention has the following advantages: after the object is heated to the set temperature, the heat source can be connected to stop supplying heat to the material; the stirring blades rotate by taking the vertical rotating shaft as an axis and also rotate by taking the horizontal shaft as an axis, so that the materials can be prevented from being precipitated; the materials can be sucked from the bottom through the water suction pump to circulate, so that the anti-sedimentation effect can be further improved; the kinetic energy of rivers can be used for driving the horizontal axis rotation for the suction pump can enough play the effect that promotes hydrologic cycle in order to increase the stirring effect, can play the effect that drives the horizontal axis pivoted again.
Drawings
FIG. 1 is a schematic cross-sectional view of a first embodiment of the present invention;
fig. 2 is a schematic cross-sectional view of a second embodiment of the present invention.
In the figure: the device comprises a kettle body 1, an electric heater 2, a vertical rotating shaft 3, a vertical rotating shaft stirring blade 4, a stirring motor 5, a liquid pumping channel 6, a liquid outlet ring 7, an annular groove 8, a vertical rotating shaft communicating hole 9, a liquid outlet ring part liquid outlet hole 10, a water suction pump 11, a filter plate 12, a scraping strip 13, a liquid storage disc 14, a liquid outlet 15, a liquid inlet cavity 16, a liquid outlet cavity 17, a heating medium inlet 18, a heating medium outlet 19, a heat exchange tube 20, a water pump outlet 21, a transverse rotating shaft 22, a driven conical gear 23, a driving conical gear 24, a vertical rotating shaft 25, a driving blade 26, a transverse rotating shaft stirring blade 27 and a suspension block 28.
Detailed Description
The invention is further described with reference to the following figures and examples.
First embodiment, referring to fig. 1, a vertical reaction vessel with double heat sources includes a vessel body 1 and a stirrer for stirring materials stored in the vessel body. An electric heater 2 positioned at the bottom of the kettle body is arranged in the kettle body. The agitator includes vertical pivot 3, connects and is changeing epaxial vertical pivot portion stirring vane 4 and the vertical pivot pivoted agitator motor of drive 5 in the vertical pivot, and agitator motor is vertical to be set up. A liquid pumping channel 6 is arranged in the vertical rotating shaft, the upper end of the vertical rotating shaft can be rotatably arranged in the liquid outlet ring 7 in a penetrating way, and the inner circumferential surface of the liquid outlet ring is provided with an annular groove 8 which extends along the circumferential direction of the vertical rotating shaft. The vertical rotating shaft seals the opening of the annular groove, a plurality of vertical rotating shaft part communicating holes 9 which are communicated with the annular groove and the liquid pumping channel are arranged on the circumferential surface of the vertical rotating shaft, and a liquid outlet hole 10 of the liquid outlet ring part which is communicated with the surface of the liquid outlet ring is arranged in an annular direction. The inlet end of the water pump 11 is hermetically connected with the liquid outlet hole of the liquid outlet ring part. The lower end of the liquid pumping channel penetrates through the lower end surface of the vertical rotating shaft to form a liquid inlet, and the liquid inlet is provided with a filter plate 12. And the bottom wall of the kettle body is provided with a scraping strip 13 supported on the lower surface of the filter plate. The stirring motor is supported on the top wall of the kettle body through the liquid outlet ring, and the upper end of the vertical rotating shaft is connected with the rotating shaft of the motor. The invention also includes a heat exchanger. The heat exchanger includes the liquid storage dish 14 that is located cauldron body upper end, is equipped with the heat insulation layer on the diapire of liquid storage dish. The liquid storage disc is positioned above the object stored in the kettle body, and a liquid outlet 15 is arranged on the bottom wall of the liquid storage disc. One end of the liquid storage disc is provided with a liquid inlet cavity 16, the other end of the liquid storage disc is provided with a liquid outlet cavity 17, the liquid inlet cavity is provided with a heating medium inlet 18, the liquid outlet cavity is provided with a heating medium outlet 19, and the liquid inlet cavity and the liquid outlet cavity are communicated through a plurality of heat exchange tubes 20 positioned in the liquid storage disc. The outlet 21 of the pump is located in the reservoir.
When the materials stored in the kettle body are heated, the stirrer stirs, the electric heater is stopped after the materials in the kettle body are heated to the temperature T1 by the electric heater, the water suction pump is started again, so that the materials in the kettle body circulate through the liquid storage disc and heat media flow through the heat exchange tube, the materials in the kettle body are heated to the required temperature T2, the heat media flow through the heat exchange tube and the water suction pump are stopped after the materials are heated to the temperature T2, and the T1 is smaller than T2.
The second embodiment is different from the first embodiment in that:
referring to fig. 2, a transverse rotating shaft 22 is rotatably connected to the vertical rotating shaft, a driven bevel gear 23 located in the liquid pumping channel is connected to the transverse rotating shaft, a driving bevel gear 24 is meshed with the driven bevel gear, the driving bevel gear is connected to a vertical rotating shaft 25 located in the liquid pumping channel, a driving blade 26 which is driven by liquid flow flowing through the liquid pumping channel and rotates around the vertical rotating shaft is fixedly connected to the vertical rotating shaft, and a stirring blade 27 of a transverse rotating shaft part is connected to the transverse rotating shaft. Every two transverse rotating shafts are located on the same straight line, and the two transverse rotating shafts located on the same straight line are driven by the same driven bevel gear. A suspension block 28 is arranged in the liquid pumping channel, and the vertical rotating shaft is rotatably connected to the suspension block.
In the use, when the pump of drawing water pump was taken out the material, the material drives drive vane and removes the rotation of the vertical pivot of drive when flowing through the drawing liquid passageway, and vertical pivot is rotated through the driven conical gear of initiative conical gear cooperation and drive horizontal pivot, seems that pivot drive horizontal pivot portion stirring vane rotates and stirs, and the material produces vertical rotation when this stirring effect can to overcome gravity and prevent to produce and deposit.
Claims (9)
1. A double-heat source vertical reaction kettle, which comprises a kettle body and a stirrer for stirring materials stored in the kettle body, an electric heater positioned at the bottom of the kettle body is arranged in the kettle body, the stirrer comprises a vertical rotating shaft, a vertical rotating shaft part stirring blade connected on the vertical rotating shaft and a stirring motor driving the vertical rotating shaft to rotate, it is characterized by also comprising a heat exchanger and a water pump, wherein the heat exchanger comprises a liquid storage disc positioned in the upper end of the kettle body, the liquid storage tray is positioned above the object stored in the kettle body, a liquid outlet is arranged on the bottom wall of the liquid storage tray, one end of the liquid storage disc is provided with a liquid inlet cavity, the other end of the liquid storage disc is provided with a liquid outlet cavity, the liquid inlet cavity is provided with a heating medium inlet, the liquid outlet cavity is provided with a heating medium outlet, the liquid inlet cavity is communicated with the liquid outlet cavity through a plurality of heat exchange tubes positioned in the liquid storage disc, and the water suction pump is used for pumping the materials stored in the kettle body into the liquid storage disc; when the materials stored in the kettle body are heated, the electric heater is firstly heated to the temperature T1 by the electric heater, then the electric heater is stopped, the water suction pump is started to enable the materials in the kettle body to circulate through the liquid storage disc and enable the heat medium to flow through the heat exchange tube, so that the materials in the kettle body are heated to the required temperature T2, the heat medium stops flowing through the heat exchange tube after the materials are heated to the temperature T2, and the temperature T1 is smaller than T2.
2. The vertical reaction kettle as recited in claim 1, wherein a liquid pumping channel is provided in the vertical rotating shaft, the upper end of the vertical rotating shaft is rotatably inserted into the liquid outlet ring, an annular groove extending along the circumferential direction of the vertical rotating shaft is provided on the inner circumferential surface of the liquid outlet ring, the vertical rotating shaft seals the opening of the annular groove, a plurality of vertical rotating shaft communicating holes communicating the annular groove and the liquid pumping channel are provided on the circumferential surface of the vertical rotating shaft, a liquid outlet hole of the liquid outlet ring is provided on the annular surface of the liquid outlet ring, and the inlet end of the water pump is connected with the liquid outlet hole of the liquid outlet ring in a sealing manner.
3. The vertical reaction kettle as recited in claim 2, wherein the lower end of said liquid pumping channel is connected to the lower end surface of said vertical shaft to form a liquid inlet, and said liquid inlet is provided with a filter plate.
4. A vertical reaction kettle with two heat sources as set forth in claim 3, wherein the bottom wall of the kettle body is provided with a scraping strip supported on the lower surface of the filter plate.
5. The vertical reaction kettle with the double heat sources as recited in claim 2, wherein a transverse shaft is rotatably connected to the vertical shaft, a driven bevel gear is connected to the transverse shaft and located in the liquid pumping channel, a driving bevel gear is meshed with the driven bevel gear, the driving bevel gear is connected to the vertical shaft and located in the liquid pumping channel, a driving blade is fixedly connected to the vertical shaft and driven by liquid flowing through the liquid pumping channel to rotate around the vertical shaft, and a stirring blade of the transverse shaft is connected to the transverse shaft.
6. A vertical reaction kettle as recited in claim 5, wherein said transverse shafts are located on a straight line two by two, and two of said transverse shafts located on the same straight line are driven by the same driven bevel gear.
7. A vertical reaction kettle as claimed in claim 5, wherein a suspension block is arranged in the liquid pumping channel, and the vertical rotating shaft is rotatably connected to the suspension block.
8. A vertical reaction kettle with two heat sources as claimed in claim 2, wherein the stirring motor is in a vertical state, the stirring motor is supported on the top wall of the kettle body through the liquid outlet ring, and the upper end of the vertical rotating shaft is connected with the rotating shaft of the motor.
9. A vertical reactor as defined in claim 1 wherein the bottom wall of the tray is provided with a thermal insulation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010908841.8A CN112076705B (en) | 2020-09-02 | 2020-09-02 | Double-heat-source vertical reaction kettle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010908841.8A CN112076705B (en) | 2020-09-02 | 2020-09-02 | Double-heat-source vertical reaction kettle |
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| Publication Number | Publication Date |
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| CN112076705A true CN112076705A (en) | 2020-12-15 |
| CN112076705B CN112076705B (en) | 2022-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010908841.8A Active CN112076705B (en) | 2020-09-02 | 2020-09-02 | Double-heat-source vertical reaction kettle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113117619A (en) * | 2021-05-27 | 2021-07-16 | 魏小龙 | Improved generation stainless steel reation kettle |
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| RU2241529C1 (en) * | 2003-04-25 | 2004-12-10 | Дальневосточный государственный университет путей сообщения | Device for preparation of emulsions |
| CN207085911U (en) * | 2017-07-25 | 2018-03-13 | 上海拜高高分子材料有限公司 | A kind of electric heating reacting kettle |
| CN207973715U (en) * | 2018-01-23 | 2018-10-16 | 浙江晨倩助剂有限公司 | A kind of intelligence epoxidized soybean oil preparation facilities |
| CN108854905A (en) * | 2018-06-21 | 2018-11-23 | 杭州跟策科技有限公司 | Every the changeable reaction kettle of heat dissipation |
| CN211329376U (en) * | 2019-11-28 | 2020-08-25 | 济宁学院 | Maillard reaction device |
-
2020
- 2020-09-02 CN CN202010908841.8A patent/CN112076705B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2241529C1 (en) * | 2003-04-25 | 2004-12-10 | Дальневосточный государственный университет путей сообщения | Device for preparation of emulsions |
| CN207085911U (en) * | 2017-07-25 | 2018-03-13 | 上海拜高高分子材料有限公司 | A kind of electric heating reacting kettle |
| CN207973715U (en) * | 2018-01-23 | 2018-10-16 | 浙江晨倩助剂有限公司 | A kind of intelligence epoxidized soybean oil preparation facilities |
| CN108854905A (en) * | 2018-06-21 | 2018-11-23 | 杭州跟策科技有限公司 | Every the changeable reaction kettle of heat dissipation |
| CN211329376U (en) * | 2019-11-28 | 2020-08-25 | 济宁学院 | Maillard reaction device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113117619A (en) * | 2021-05-27 | 2021-07-16 | 魏小龙 | Improved generation stainless steel reation kettle |
| CN113117619B (en) * | 2021-05-27 | 2022-07-05 | 山东亿博润新材料科技有限公司 | Improved generation stainless steel reation kettle |
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| Publication number | Publication date |
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| CN112076705B (en) | 2022-04-15 |
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