CN218689198U - Heating dissolving kettle device for PVB production raw materials - Google Patents
Heating dissolving kettle device for PVB production raw materials Download PDFInfo
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- CN218689198U CN218689198U CN202222455748.3U CN202222455748U CN218689198U CN 218689198 U CN218689198 U CN 218689198U CN 202222455748 U CN202222455748 U CN 202222455748U CN 218689198 U CN218689198 U CN 218689198U
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Abstract
The utility model provides a heating dissolving kettle device of PVB raw materials for production, including dissolving kettle body, agitating unit, heating device and control system, set up feed inlet and water inlet on the dissolving kettle body, its characteristics are: the lower part of the dissolving kettle body is provided with a discharge port, the heating device comprises a steam generating device and a steam heating sleeve, the steam heating sleeve surrounds the outer wall of the dissolving kettle body, the steam generating device is communicated with the upper port of the steam heating sleeve, and the lower end of the steam heating sleeve is provided with a gas outlet. The stirring device comprises a motor, a circular tray and stirring paddles, the control system controls the motor to be arranged at the bottom of the dissolving kettle body, the circular tray arranged at the upper end of a transmission shaft of the control system is at least provided with two stirring paddles, and the control system controls the motor to drive the circular tray to rotate and the stirring paddles to automatically transmit around the vertical axis of the stirring paddles. The stirring device is simple in structure, high in heating rate, good in heat preservation effect, high in stirring rate, uniform in stirring, high in production efficiency and low in energy consumption.
Description
Technical Field
The utility model belongs to the technical field of chemical production equipment, a PVB production facility's improvement is related to, a PVB raw materials for production's heating dissolving kettle device specifically says so.
Background
Polyvinyl alcohol is an organic compound of the formula [ C ] 2 H 4 O]n, is in the form of powdery solid, flocculent or white flake, is tasteless and soluble in water (above 95 ℃), and polyvinyl alcohol is a chemical raw material mainly used for manufacturing PVB.
In the PVB industrial production process, polyvinyl alcohol is firstly dissolved by adding water, and then a catalyst and n-butyraldehyde are added to carry out chemical reaction for acetalization, when a certain reaction degree is reached, the system becomes heterogeneous, and PVB solid particles are slowly separated out. Take DuPont, USA as an example, the PVB production adopts a two-step precipitation method, and polyvinyl alcohol is prepared into an aqueous solution with the concentration of 8% -10%, and then hydrochloric acid and aldehyde are added for reaction. When a certain degree of acetalization is reached, the system becomes heterogeneous and gradually precipitates PVB particles. The reaction was then continued at 70 ℃ for a period of time. And carrying out post-treatment after the reaction is finished, and finally obtaining a dry PVB finished product.
At present, the two-step precipitation method is adopted by most domestic PVB manufacturers, so that the polyvinyl alcohol needs to be dissolved in water, but the polyvinyl alcohol is difficult to dissolve in water, and a heating and dissolving device needs to be designed to realize rapid and efficient dissolution of the polyvinyl alcohol, so that the polyvinyl alcohol can be put into production and use subsequently.
The first step of the production process of the polyvinyl butyral is to dissolve the raw material polyvinyl alcohol at high temperature, the polyvinyl alcohol can be dissolved completely only by heat preservation at the temperature of more than 95 ℃, the existing production is to heat up by a method of introducing steam into a jacket of a dissolving kettle, the heating up time is long, and the energy consumption is high.
Chinese patent (application No. 201921804930.7) discloses a novel dissolving kettle for chemical industry, which comprises a dissolving kettle body; the motor is arranged on the top of the dissolving kettle body; the stirring shaft is connected with the motor and is rotatably arranged in the accommodating cavity of the dissolving kettle body, a plurality of stirring blades are arranged at intervals along the length direction of the stirring shaft, and a feeding hole communicated with the accommodating cavity is formed in the top of the dissolving kettle body; the feeding pipe body is connected with the feeding hole through a connecting flange; the sleeve is sleeved outside the feeding pipe body and the connecting flange; wherein, the sleeve pipe is internally provided with a heating element. In this way, this patent can heat the material of the feed inlet position department of dissolving the cauldron through the heating member, has effectively solved feed inlet position department and has caused the material to solidify because of the temperature is low, and then has blockked up the problem of feed inlet for the feeding is unobstructed, does not influence production. The firing equipment setting of this patent is in the dissolution kettle outside, and rate of rise is slower, needs to spend longer time intensification, and agitating unit is single, and does not have rate control, does not set up the discharge gate in the bottom.
Chinese patent (application number 202020445172.0) discloses a food additive heating and dissolving kettle, and relates to the technical field of food processing. The utility model discloses a dissolve cauldron, inlet tube, discharging pipe and inlet pipe, it is provided with the heating circle to dissolve cauldron week side, it is provided with the motor to dissolve a cauldron surface, it is provided with the support to dissolve a cauldron surface, it is provided with the bearing to dissolve the cauldron inside, the bearing is connected with the motor, bearing week side is provided with the (mixing) shaft, (mixing) shaft one end is connected with the connecting block. This patent is through using (mixing) shaft and shower nozzle, makes moisture be vaporific blowout, and with the raw materials abundant contact, the stirring mixes more evenly, through using passageway and brush, makes moisture can reach the dissolution cauldron inner wall through the passageway, and the brush can wash the dissolution cauldron inner wall in the stirring, is convenient for wash the dissolution cauldron. The patent has the problems that: the discharge port is not provided with a filtering device, so that some insoluble impurities can flow into production equipment, the steam spraying device and the stirrer rotating shaft are combined together, the structure is complex, and the stirring device can drive the spraying device to rotate when rotating, so that a part of kinetic energy is wasted.
Therefore, how to design a heating dissolving kettle device of PVB raw materials for production, its simple structure, rate of heating is high, and it is effectual to keep warm, and rate of stirring is high, and the stirring is even, and production efficiency is high, and the energy consumption is lower, and this is the technological problem that this field is urgent to solve.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the above-mentioned problem that prior art exists, provide a heating dissolution kettle device of PVB raw materials for production, its simple structure, heating rate is high, and it is effectual to keep warm, and stirring rate is high, the stirring, and production efficiency is high, and the energy consumption is lower.
The utility model aims at realizing through the following technical scheme:
a heating dissolving kettle device for PVB production raw materials comprises a dissolving kettle body, a stirring device, a heating device and a control system, wherein a feeding port and a water inlet are formed in the dissolving kettle body; agitating unit includes motor, circular tray and stirring rake, control system with the control end of motor is connected, the motor sets up the bottom of dissolving kettle body, the vertical setting of transmission shaft of motor, the upper end setting of transmission shaft circular tray, circular tray is last to set up two stirring rakes at least, motor drive circular tray rotates, the stirring rake follows circular tray revolution, and by the motor passes through drive mechanism and makes it pass around vertical axis.
The improvement of the technical scheme is as follows: the top surface of the dissolving kettle body is provided with at least two jacks, 1 stainless steel pipe in the dissolving kettle body is inserted downwards from each jack, a plurality of through holes are formed in the stainless steel pipes, and a steam pipeline led out by the steam generating device is connected with the upper ends of the stainless steel pipes.
The technical scheme is further improved as follows: and a discharge pipe connected with the discharge port is provided with an electromagnetic valve and a filter screen, and the control end of the electromagnetic valve is connected with the control system.
The technical scheme is further improved as follows: and an outer layer is arranged on the steam heating sleeve for heat preservation.
The technical scheme is further improved as follows: the feed inlet sets up on the top surface of dissolving kettle body, the water inlet sets up on the lateral wall on dissolving kettle body upper portion, control system sets up on the inside wall of dissolving kettle body.
The technical scheme is further improved as follows: the motor is a variable frequency motor.
The utility model has the advantages that:
the equipment consists of a steam generating device, a dissolving kettle, a stainless steel pipe with holes, a steam heating sleeve with an outer layer for heat preservation and a variable-speed stirring device. Water and materials are put into the equipment, and the materials can be quickly heated and dissolved by opening the steam generating device and the stirring device.
1. The utility model can select proper temperature of the dissolving kettle, stirring speed and intensity as required, avoid the problems of slow dissolving and discharging caused by over-slow stirring speed, uneven stirring and insufficient stirring intensity, and avoid the problem of slow material dissolving caused by slow heating and temperature rising;
2. the utility model arranges the filter screen on the discharge pipe, thereby avoiding some insoluble impurities from entering into the reaction equipment to affect the product quality;
3. the utility model has the advantages that the heat preservation layer is arranged outside the steam heating sleeve, thereby reducing the energy waste;
4. the utility model discloses can be applied to the heating of multiple chemical material and dissolve.
Drawings
FIG. 1 is a schematic view of a connection structure of a heating and dissolving tank device for PVB production raw material of the present invention;
fig. 2 is a schematic block diagram of a control system in a heating and dissolving tank device for PVB production raw material.
The numbering in the figure is: 1-a steam generating device, 2-a stainless steel pipe, 3-a feed inlet, 4-a water inlet, 5-a steam heating sleeve, 6-a control system, 7-a stirring paddle, 8-a circular tray, 9-a motor, 10-an electromagnetic valve, 11-a filter screen and 12-a dissolving kettle.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings:
referring to fig. 1 and 2, the utility model relates to a heating dissolving kettle device's of PVB raw materials for production embodiment, including dissolving kettle body 12, agitating unit, heating device and control system 6, set up feed inlet 3 and water inlet 4 on dissolving kettle body 12, dissolving kettle body's lower part sets up the discharge gate, heating device includes that steam produces device 1, steam heating sleeve 5, and steam heating sleeve 5 centers on dissolving kettle body 12's outer wall. The steam generating device 1 is communicated with the upper port of the steam heating sleeve 5 through a steam pipeline, and the steam heating sleeve 5 is arranged on the outer side wall of the lower part of the dissolving kettle body 12 and is provided with an air outlet. Above-mentioned agitating unit includes motor 9, circular tray 8 and stirring rake 7, and above-mentioned control system 6 is connected with the control end of motor 9, and motor 9 sets up in the bottom of dissolving kettle body 12, the vertical setting of the transmission shaft of motor 9, the upper end of transmission shaft sets up circular tray 8, sets up two stirring rakes 7 on the circular tray 8 at least, and motor 9 drive circular tray 8 rotates, and stirring rake 7 revolves along with circular tray 8 to make it pass around vertical axis by motor 9 through drive mechanism.
Furthermore, at least two insertion holes are formed in the top surface of the dissolution kettle body 12, 1 stainless steel pipe 2 in the dissolution kettle body 12 is inserted downwards from each insertion hole, a plurality of through holes are formed in the stainless steel pipes 2, and a steam pipeline led out by the steam generation device 1 is connected with the upper end of each stainless steel pipe 2.
Still further, set up solenoid valve 10 and filter screen 11 on the discharging pipeline that the above-mentioned discharge gate is connected, the control end of solenoid valve 10 is connected with control system 6.
Preferably, the steam heating sleeve 5 is wrapped on the outer side of the dissolving kettle body 12, and meanwhile, an insulating layer is arranged on the outer side of the steam heating sleeve 5, so that heat loss can be reduced.
Still further, the feed inlet 3 is arranged on the top surface of the dissolving kettle body 12, and the water inlet 4 is arranged on the side wall of the upper part of the dissolving kettle body 12.
Further, the control system 6 is disposed on the inner side wall of the dissolution tank body 12.
During the use, throw into dissolving kettle body 12 through feed inlet 3 and water inlet 4 respectively with material and solvent, steam generation device 1 produces vapor, enters into steam heating sleeve pipe 5 and stainless steel pipe 2 of band pass hole through the steam pipeline, heats in dissolving kettle body 12 simultaneously. The control system 6 can adjust the stirring paddle 7 and the circular tray 8 to rotate at variable speed, and meanwhile, the circular tray 8 can rotate around the axis, so that the dissolution of the material is accelerated. Finally, an electromagnetic valve 10 is opened, and the solution enters a metering tank or a metering system through a filter screen 11 and is put into reaction production according to the amount.
The stainless steel pipe 2 can be detached and replaced, and the stirring paddle 7 and the filter screen 11 can also be detached, cleaned or replaced. The plurality of stainless steel pipes 2 are matched with the steam heating sleeve 5 for use, so that the heating rate can be increased; the number of the stirring paddles 7 is increased, so that the stirring can be performed more quickly and uniformly.
The control system 6 can monitor the temperature in the dissolving kettle body 12, and the motor 9 for driving the stirring paddle 7 and the circular tray 8 is a variable frequency motor, so that the stirring speed and the stirring mode can be controlled.
The steam output of the steam generating device 1 can also be controlled by the control system 6, so that a certain temperature range can be kept in the dissolving kettle body 12.
The above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and the changes, modifications, additions or substitutions made within the scope of the present invention should also belong to the protection scope of the present invention.
Claims (10)
1. A heating dissolving kettle device for PVB production raw materials comprises a dissolving kettle body, a stirring device, a heating device and a control system, wherein a feeding port and a water inlet are formed in the dissolving kettle body; agitating unit includes motor, circular tray and stirring rake, control system with the control end of motor is connected, the motor sets up the bottom of dissolving kettle body, the vertical setting of transmission shaft of motor, the upper end setting of transmission shaft circular tray, circular tray is last to set up two stirring rakes at least, motor drive circular tray rotates, the stirring rake follows circular tray revolution, and by the motor passes through drive mechanism and makes it pass around vertical axis.
2. The apparatus of claim 1, wherein the dissolving tank has at least two insertion holes on its top surface, each insertion hole is inserted into 1 stainless steel tube in the dissolving tank, the stainless steel tube has a plurality of through holes, and the steam pipeline from the steam generating device is connected to the upper end of the stainless steel tube.
3. A PVB production raw material heating and dissolving kettle device according to claim 1 or 2, wherein a discharge pipeline connected with the discharge port is provided with an electromagnetic valve and a filter screen, and a control end of the electromagnetic valve is connected with the control system.
4. A heated dissolution tank apparatus for PVB production feedstock as claimed in claim 1 or claim 2, wherein the steam heating jacket is provided with an outer insulation layer.
5. A heated dissolving tank apparatus as claimed in claim 3 wherein the steam heating jacket has an outer layer for thermal insulation.
6. The apparatus of claim 1 or 2, wherein the inlet is disposed on the top surface of the dissolution tank body, the inlet is disposed on the sidewall of the upper portion of the dissolution tank body, and the control system is disposed on the inner sidewall of the dissolution tank body.
7. The apparatus of claim 3, wherein the inlet is disposed on a top surface of the dissolving tank, the inlet is disposed on a sidewall of an upper portion of the dissolving tank, and the control system is disposed on an inner side of the dissolving tank.
8. The apparatus of claim 5, wherein the inlet is disposed on a top surface of the dissolution tank body, the inlet is disposed on a sidewall of an upper portion of the dissolution tank body, and the control system is disposed on an inner sidewall of the dissolution tank body.
9. A PVB production material heating and dissolving tank apparatus according to claim 1 or 2, wherein said motor is a variable frequency motor.
10. A heated dissolving tank apparatus as defined in claim 8 wherein the motor is a variable frequency motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222455748.3U CN218689198U (en) | 2022-09-16 | 2022-09-16 | Heating dissolving kettle device for PVB production raw materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222455748.3U CN218689198U (en) | 2022-09-16 | 2022-09-16 | Heating dissolving kettle device for PVB production raw materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218689198U true CN218689198U (en) | 2023-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222455748.3U Active CN218689198U (en) | 2022-09-16 | 2022-09-16 | Heating dissolving kettle device for PVB production raw materials |
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| Country | Link |
|---|---|
| CN (1) | CN218689198U (en) |
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- 2022-09-16 CN CN202222455748.3U patent/CN218689198U/en active Active
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