CN211800809U

CN211800809U - Heating reaction kettle

Info

Publication number: CN211800809U
Application number: CN202020113489.4U
Authority: CN
Inventors: 罗琴; 李加英
Original assignee: Sichuan Luyou Transportation Materials Development Co ltd
Current assignee: Sichuan Luyou Transportation Materials Development Co ltd
Priority date: 2020-01-19
Filing date: 2020-01-19
Publication date: 2020-10-30
Anticipated expiration: 2030-01-19

Abstract

The utility model relates to a heating reaction kettle, which comprises a reaction kettle body and a reaction kettle inner cavity, wherein the outer wall of the reaction kettle body is provided with a heating jacket filled with heat-conducting oil, and a plurality of electric heating pipes are arranged in the heating jacket; the heating jacket is connected with a heat conduction oil circulating pump, an oil guide pipe is arranged in the inner cavity of the reaction kettle, one end of the oil guide pipe is communicated with the oil outlet end of the heat conduction oil circulating pump, and one end, far away from the heat conduction oil circulating pump, of the oil guide pipe is communicated with the heating jacket. This technical scheme has the advantage that heat exchange efficiency is high.

Description

Heating reaction kettle

Technical Field

The utility model belongs to the technical field of reation kettle's technique and specifically relates to a heating reation kettle is related to.

Background

The reaction kettle is a container for physical or chemical reaction among different substances, and is widely applied to industries such as petroleum, rubber, pesticides, dyes, medicines, foods and the like. Many chemical reactions need to be carried out under the condition higher than room temperature, so many reation kettle can involve heating the material in the reation kettle cauldron, and more reation kettle manufacturers begin to design the reation kettle that has the heating function.

The industrial setting generally is equipped with the clamp cover that is equipped with the conduction oil for reation kettle, sets up electric heating pipe in the clamp cover, heats the conduction oil in the clamp cover through electric heating pipe, and the rethread conduction oil carries out the heat exchange with the interior material of reation kettle, realizes carrying out the purpose of heating to the interior material of reation kettle. Due to the fact that the electric heating pipe is used for heating, certain temperature difference exists between the heat conduction oil close to the electric heating pipe and the heat conduction oil far away from the electric heating pipe, the heating effect can be influenced, and even the bumping phenomenon with certain potential safety hazards can possibly occur.

Application publication No. CN103100361A discloses a conduction oil heating reation kettle system, including reation kettle, set up the heat conduction jacket that is equipped with the conduction oil in the reation kettle outside, establish a plurality of parallelly connected electric heating pipes, the oil tank in the heat conduction jacket and make the oil in the heat conduction jacket and the oil in the oil tank carry out the circulating oil pump that the circulation flows. According to the technical scheme, the heat conduction jacket is connected with the oil tank through the circulating oil pump, and the heat conduction oil in the heat conduction jacket and the oil in the oil tank flow circularly through the circulating oil pump, so that the temperature difference of the heat conduction oil in the heat conduction jacket is reduced, the stability of the heating temperature is ensured, and the reaction quality is improved. This technical scheme realizes the conduction oil circulation through setting up the circulating oil pump for the oil tank, and the conduction oil can have certain calorific loss at the in-process of oil tank circulation, can increase the energy consumption of equipment, reduces heat exchange efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a heating reation kettle that heat exchange efficiency is high to the not enough of prior art existence.

The above technical purpose of the present invention can be achieved by the following technical solutions: a heating reaction kettle comprises a reaction kettle body and a reaction kettle inner cavity, wherein a heating jacket filled with heat conduction oil is arranged on the outer wall of the reaction kettle body, and a plurality of electric heating pipes are arranged in the heating jacket; the heating jacket is connected with a heat conduction oil circulating pump, an oil guide pipe is arranged in the inner cavity of the reaction kettle, one end of the oil guide pipe is communicated with the oil outlet end of the heat conduction oil circulating pump, and one end, far away from the heat conduction oil circulating pump, of the oil guide pipe is communicated with the heating jacket.

By adopting the technical scheme, an oil guide pipe is arranged in the inner cavity of the reaction kettle, one end of the oil guide pipe is connected with a heat conduction oil circulating pump, and the other end of the oil guide pipe is communicated with the heating jacket; the heat conduction oil in the heating jacket heats the materials in the inner cavity of the reaction kettle from the side wall of the kettle body of the reaction kettle, the heat conduction oil circulating pump conveys the heat conduction oil in the heating jacket to the oil guide pipe, the heat conduction oil in the oil guide pipe heats the materials in the inner cavity of the reaction kettle from the inside of the reaction kettle, and the heat conduction oil flows into the heating jacket from the oil guide pipe, so that the circulation of the heat conduction oil is realized, an oil tank is not required to be additionally arranged, the heat loss is reduced, and the heat exchange efficiency is improved; by using the heating reaction kettle of the technical scheme, the heat conduction oil in the oil guide pipe and the heat conduction oil in the heating jacket respectively heat materials in the inner cavity of the reaction kettle from the inside and the outside of the reaction kettle, the linkage of two heat sources is realized through the heat conduction oil circulating pump, and then the heating power of the electric heating pipe is controlled according to the temperature in the kettle, so that the temperature of the heat conduction oil in the oil guide pipe and the temperature of the heat conduction oil in the heating jacket are controlled, and the temperature in the kettle is adjusted.

Preferably, the reaction kettle body comprises a kettle cover arranged on the upper part of the reaction kettle body, one end of the oil guide pipe penetrates through the kettle cover from the inner cavity of the reaction kettle to be communicated with the heat conduction oil circulating pump, and one end of the oil guide pipe, far away from the heat conduction oil circulating pump, penetrates through the kettle cover from the inner cavity of the reaction kettle to be communicated with the heating jacket.

Through adopting above-mentioned technical scheme, if lead oil pipe and wear out reation kettle from the reation kettle lateral wall or the reation kettle bottom that have the contact with the material, can influence reation kettle leakproofness and improve the equipment processing degree of difficulty, lead oil pipe's both ends and pass kettle cover and conduction oil circulating pump and heating jacket intercommunication from the reation kettle inner chamber respectively, when reation kettle in-service use, the liquid level of reation kettle inner chamber is below the kettle cover position, the liquid and the solid material of reation kettle inner chamber can not flow in the crosspoint position department of leading oil pipe and reation kettle body, the probability that lead oil pipe influences reation kettle leakproofness has been reduced, the processing degree of difficulty of equipment has been reduced.

Preferably, the heating jacket comprises an oil inlet arranged at the bottom of the heating jacket and an oil outlet arranged at the top of the heating jacket, the oil inlet end of the heat-conducting oil circulating pump is communicated with the heating jacket through the oil outlet, the end, away from the heat-conducting oil circulating pump, of the oil guide pipe is communicated with the heating jacket through the oil inlet, and the oil inlet and the oil outlet are respectively located on two sides of a central shaft of the reaction kettle body in the direction from the kettle cover to the bottom of the reaction kettle body.

By adopting the technical scheme, the heat conduction oil flows into the heating jacket from the oil inlet at the bottom of the heating jacket and then flows out of the heating jacket from the oil outlet at the top of the heating jacket, and the high-temperature heat conduction oil flows from bottom to top, so that the probability of air left in the heating jacket can be reduced, and the heat exchange efficiency between the heat conduction oil and the materials in the inner cavity of the reaction kettle can be improved; the oil inlet and the oil outlet are respectively arranged on two sides of the central shaft of the reaction kettle body, so that the flowing distance of the heat conduction oil in the heating jacket can be prolonged, and the heat exchange efficiency between the heat conduction oil and materials in the inner cavity of the reaction kettle can be improved.

Preferably, the outer wall of the reaction kettle body is coated with a heat insulation layer.

By adopting the technical scheme, the thermal insulation layer is coated on the outer wall of the reaction kettle body, so that the heat radiated from high-temperature heat conduction oil to the air can be reduced, the heat utilization rate is improved, and the energy consumption is reduced.

Preferably, the oil guide pipe is spirally distributed in the inner cavity of the reaction kettle.

By adopting the technical scheme, the oil guide pipes are distributed in the inner cavity of the reaction kettle in a spiral shape, so that the flow distance of high-temperature heat conduction oil in the inner cavity of the reaction kettle can be prolonged, the heat exchange area between the heat conduction oil in the oil guide pipes and materials in the inner cavity of the reaction kettle can be increased, and the heat exchange efficiency between the high-temperature heat conduction oil and the materials in the inner cavity of the reaction kettle can be improved.

Preferably, the kettle cover is provided with a stirring device, the stirring device comprises a first stirring shaft and a stirring motor for driving the first stirring shaft to rotate, and the stirring motor is arranged on the upper surface of the kettle cover; the first stirring shaft penetrates through the kettle cover from the upper part of the kettle cover and extends to the bottom of the inner cavity of the reaction kettle, a first stirring paddle is arranged on the first stirring shaft, the central axis of the spiral line of the oil guide pipe is coincided with the central line of the first stirring shaft from the position close to the kettle cover to the position far away from the kettle cover, and the distance from the side of the first stirring shaft to the first stirring shaft, away from the first stirring paddle, of the first stirring shaft is smaller than the distance from the side of the first stirring shaft to the first stirring shaft, of the oil.

By adopting the technical scheme, the reaction kettle body is provided with the stirring device, the stirring device comprises the first stirring shaft comprising the first stirring paddle and the stirring motor for driving the first stirring shaft to rotate, the stirring motor drives the first stirring shaft to rotate, so as to drive the first stirring paddle to rotate, so as to drive the materials in the inner cavity of the reaction kettle to flow, so as to drive the materials in the inner cavity of the reaction kettle to realize heat transfer, reduce the temperature difference among the materials in the inner cavity of the reaction kettle, improve the heat exchange efficiency and improve the reaction quality among the materials in the inner cavity of the reaction kettle; the distance from the first stirring paddle to the first stirring shaft away from the first stirring shaft side is smaller than the distance from the oil guide pipe to the first stirring shaft side, so that collision between the first stirring paddle and the heat conducting oil coil pipe can be avoided, and normal operation of equipment is guaranteed.

Preferably, the first stirring shaft is connected with a plurality of second stirring shafts, the second stirring shafts are provided with second stirring paddles, the reaction kettle body comprises a side wall, and the second stirring shafts are positioned between the spiral oil guide pipe and the side wall; and the second stirring shaft is connected with the first stirring shaft from the upper part of the spiral oil guide pipe.

Through adopting above-mentioned technical scheme, set up the second (mixing) shaft that contains the second stirring rake between oil pipe and the reation kettle lateral wall is led to the heliciform, can accelerate the heliciform and lead the flow speed of the material between oil pipe and the reation kettle lateral wall, accelerate the heat transfer between the material in the reation kettle inner chamber, reduce the difference in temperature that exists between the material in the reation kettle inner chamber, improve heat exchange efficiency, improve the reaction quality between the material in the reation kettle inner chamber.

Preferably, the reaction kettle is externally provided with an operation platform convenient for operation and maintenance, the operation platform is provided with an operation ladder extending to the ground, and the heat-conducting oil circulating pump is arranged on the operation platform.

Through adopting above-mentioned technical scheme, install the conduction oil circulating pump on operation platform, the operating personnel of being convenient for operates and maintains, also is convenient for protect operating personnel's personal safety.

To sum up, the utility model discloses a following at least one useful technological effect:

1. an oil guide pipe is arranged in the inner cavity of the reaction kettle, one end of the oil guide pipe is connected with a heat conduction oil circulating pump, and the other end of the oil guide pipe is communicated with a heating jacket; the heat conduction oil in the heating jacket heats the materials in the inner cavity of the reaction kettle from the side wall of the kettle body of the reaction kettle, the heat conduction oil circulating pump conveys the heat conduction oil in the heating jacket to the oil guide pipe, the heat conduction oil in the oil guide pipe heats the materials in the inner cavity of the reaction kettle from the inside of the reaction kettle, and the heat conduction oil flows into the heating jacket from the oil guide pipe, so that the circulation of the heat conduction oil is realized, an oil tank is not required to be additionally arranged, the heat loss is reduced, and the heat exchange efficiency is improved; by using the heating reaction kettle of the technical scheme, the heat conduction oil in the oil guide pipe and the heat conduction oil in the heating jacket respectively heat materials in the inner cavity of the reaction kettle from the inside and the outside of the reaction kettle, the linkage of two heat sources is realized through the heat conduction oil circulating pump, and the heating power of the electric heating pipe is controlled according to the temperature in the kettle, so that the temperature of the heat conduction oil in the oil guide pipe and the temperature of the heat conduction oil in the heating jacket are controlled, and the temperature in the kettle is adjusted;

2. two ends of the oil guide pipe respectively penetrate through the kettle cover from the inner cavity of the reaction kettle to be communicated with the heat-conducting oil circulating pump and the heating jacket, so that the sealing performance of the reaction kettle is improved, and the processing difficulty of equipment is reduced; the heat-conducting oil circulating pump is arranged on the operating platform, so that the operation and maintenance of operators are facilitated, and the personal safety of the operators is also facilitated to be protected;

3. the heat conduction oil flows into the heating jacket from the oil inlet at the bottom of the heating jacket and then flows out of the heating jacket from the oil outlet at the top of the heating jacket, and the high-temperature heat conduction oil flows from bottom to top, so that the probability of air remaining in the heating jacket can be reduced, and the heat exchange efficiency between the heat conduction oil and the materials in the inner cavity of the reaction kettle can be improved; the oil inlet and the oil outlet are respectively arranged at two sides of the central shaft of the kettle body of the reaction kettle, so that the flowing distance of the heat conduction oil in the heating jacket can be prolonged, and the heat exchange efficiency between the heat conduction oil and the materials in the inner cavity of the reaction kettle can be improved; the outer wall of the reaction kettle body is coated with the heat insulation layer, so that the heat radiated from high-temperature heat conduction oil to the air can be reduced, the heat utilization rate is improved, and the energy consumption is reduced; the reaction kettle body is provided with a stirring device, the stirring device comprises a first stirring shaft containing a first stirring paddle and a stirring motor for driving the first stirring shaft to rotate, the stirring motor drives the first stirring shaft to rotate, the first stirring paddle is driven to rotate, materials in the inner cavity of the reaction kettle are driven to flow, heat transfer among the materials in the inner cavity of the reaction kettle is driven to be realized, the temperature difference among the materials in the inner cavity of the reaction kettle is reduced, the heat exchange efficiency is improved, and the reaction quality among the materials in the inner cavity of the reaction kettle is improved; set up the second (mixing) shaft that contains the second stirring rake between oil pipe and the reation kettle lateral wall is led to the heliciform, can accelerate the heliciform and lead the flow speed of the material between oil pipe and the reation kettle lateral wall, accelerate the heat transfer between the material in the reation kettle inner chamber, reduce the difference in temperature that exists between the material in the reation kettle inner chamber, improve heat exchange efficiency, improve the reaction mass between the material in the reation kettle inner chamber.

Drawings

FIG. 1 is a schematic diagram of an exemplary structure;

FIG. 2 is a schematic diagram of an exemplary hidden operating platform implemented;

FIG. 3 is a cross-sectional view of an exemplary embodiment;

FIG. 4 is a schematic view of the internal structure of a reaction vessel.

Reference numerals: 1. a reaction kettle body; 2. the inner cavity of the reaction kettle; 3. discharging a pipe downwards; 4. a heating jacket; 5. an electric heating tube; 6. a heat transfer oil circulating pump; 7. an oil guide pipe; 8. an oil inlet; 9. an oil outlet; 10. An operating platform; 11. operating the ladder; 12. a heat insulation layer; 13. a kettle cover; 14. a side wall; 15. a first stirring shaft; 16. a stirring motor; 17. a first stirring paddle; 18. a second stirring shaft; 19. a second stirring paddle; 20. the bottom of the kettle; 21. A liquid feed conduit; 22. A liquid feed valve; 23. a lower discharge valve; 24. a valve plate; 25. a thermowell; 26. a thermocouple; 27. and a controller.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

A heating reaction kettle is shown in figures 1 and 3 and comprises a reaction kettle body 1 and a reaction kettle inner cavity 2, wherein the reaction kettle body 1 comprises a kettle cover 13, a kettle bottom 20 and a side wall 14, the kettle cover 13 is in sealing connection with the side wall 14, and the kettle bottom 20 is in sealing connection with the side wall 14. A liquid feeding pipe 21 is connected on the kettle cover 13, liquid raw materials enter the inner cavity 2 of the reaction kettle from the liquid feeding pipe 21, and a liquid feeding valve 22 is arranged between the liquid feeding pipe 21 and the reaction kettle body 1. Kettle cover 13 is provided with the solid feed inlet that is used for adding solid material, is provided with valve plate 24 that is used for sealing the solid feed inlet on kettle cover 13, passes through flange joint between valve plate 24 and the kettle cover 13. The kettle cover 13 is provided with a thermocouple sleeve 25 inserted into the inner cavity 2 of the reaction kettle, the thermocouple sleeve 25 is provided with a thermocouple 26 for measuring temperature, and the position of one end of the thermocouple 26 far away from the kettle cover 13 is lower than the liquid level position of the material in the inner cavity 2 of the reaction kettle in actual use. The outer wall of the reaction kettle body 1 is provided with a heating jacket 4 filled with heat conducting oil, and a plurality of electric heating pipes 5 connected in parallel are arranged in the heating jacket 4. The outer wall of the reaction kettle body 1 is coated with a heat insulation layer 12. The heating jacket 4 is positioned between the heat insulation layer 12 and the reaction kettle body 1. The outer operation platform 10 that is convenient for operate and maintain that installs of reation kettle cauldron body 1, operation platform 10 are provided with the operation ladder 11 that extends to ground. The operation platform 10 is provided with a controller 27 for connecting the thermocouple 26 and the electric heating pipe 5 by wires. The kettle bottom 20 is connected with a lower discharging pipe 3, and a lower discharging valve 23 is arranged between the lower discharging pipe 3 and the kettle bottom 20.

As shown in fig. 2 and 3, the heating jacket 4 comprises an oil inlet 8 disposed at the bottom of the heating jacket 4 and an oil outlet 9 disposed at the top of the heating jacket 4. The oil inlet 8 and the oil outlet 9 are respectively positioned on two sides of a central shaft of the reaction kettle body 1 in the direction from the kettle cover 13 to the kettle bottom 20. The heating jacket 4 is connected with a heat-conducting oil circulating pump 6. Be provided with in reation kettle inner chamber 2 and lead oil pipe 7, lead oil pipe 7 and include the part that is the heliciform and distributes in reation kettle inner chamber 2, the bottom butt cauldron bottom 20 of the part that the heliciform distributes. The spirally distributed part comprises one end which is abutted against the kettle bottom 20 and one end which is far away from the kettle bottom 20; one end of the spirally distributed part of the oil guide pipe 7, which is abutted against the kettle bottom 20, extends to the side of the side wall 14, which is away from the heating jacket 4, along the kettle bottom 20, extends to the kettle cover 13 along the side wall 14 in the direction away from the kettle bottom 20, and penetrates through the kettle cover 13 to be communicated with the heat conduction oil circulating pump 6; one end of the spirally distributed part of the oil guide pipe 7, which is far away from the kettle bottom 20, vertically extends downwards to the kettle bottom 20, then extends along the kettle bottom 20 to the side of the side wall 14, which is far away from the heating jacket 4, and then extends along the side wall 14 to the kettle cover 13 in the direction of being far away from the kettle bottom 20 and penetrates through the kettle cover 13 to be communicated with the heating jacket 4 (see fig. 4). The oil inlet end of the heat conduction oil circulating pump 6 is communicated with the heating jacket 4 through an oil outlet 9, and the end, far away from the heat conduction oil circulating pump 6, of the oil guide pipe 7 is communicated with the heating jacket 4 through an oil inlet 8. The heat conducting oil circulating pump 6 is installed on the operating platform 10.

As shown in fig. 1 and 4, a stirring device is installed on the upper portion of the reaction kettle body 1, the stirring device includes a first stirring shaft 15 and a stirring motor 16 for driving the first stirring shaft 15 to rotate, and the stirring motor 16 is installed on the upper surface of the kettle cover 13; first (mixing) shaft 15 passes kettle cover 13 from kettle cover 13 top and extends to 2 bottoms in reation kettle inner chamber, be provided with first stirring rake 17 on first (mixing) shaft 15, from being close to kettle cover 13 to leading the central axis of oil pipe 7 helix and the coincidence of the central line of first (mixing) shaft 15 in the direction of keeping away from kettle cover 13, first (mixing) shaft 15 side is less than leading the first (mixing) shaft 15 side of 7 heliciform parts of oil pipe to the first (mixing) shaft 15 distance of first stirring rake 17 keeping away from first (mixing) shaft 15, first (mixing) shaft 15 and first stirring rake 17 can not collide with oil pipe 7 when rotating. The first stirring shaft 15 is connected with a plurality of second stirring shafts 18, the second stirring shafts 18 are provided with second stirring paddles 19, the second stirring shafts 18 are positioned between the side wall 14 and the spiral parts of the oil guide pipe 7, and the second stirring shafts 18 and the second stirring paddles 19 cannot collide with the oil guide pipe 7 when rotating. The second stirring shaft 18 is connected to the first stirring shaft 15 from above the spiral portion of the oil conduit 7.

The specific working process is as follows: closing the lower discharge valve 23, opening the liquid feed valve 22, feeding liquid materials into the inner cavity 2 of the reaction kettle through the liquid feed pipe 21, opening the valve plate 24, adding solid raw materials into the inner cavity 2 of the reaction kettle from the solid feed port, closing the liquid feed valve 22 after feeding, and closing the valve plate 24. Starting the stirring motor 16, the stirring motor 16 drives the first stirring shaft 15 and the second stirring shaft 18 to rotate, drives the first stirring paddle 17 and the second stirring paddle 19 to rotate, drives the material in the inner cavity 2 of the reaction kettle to flow, accelerates the heat transfer between the materials in the inner cavity 2 of the reaction kettle, and accelerates the reaction rate between the materials in the inner cavity 2 of the reaction kettle. The heat-conducting oil circulating pump 6 is started, the controller 27 is started, the electric heating pipe 5 starts to heat, the temperature of heat-conducting oil in the heating jacket 4 starts to rise, the heat-conducting oil circulating pump 6 drives the heat-conducting oil to flow into the oil guide pipe 7 from the heating jacket 4, the heat-conducting oil in the oil guide pipe 7 heats materials in the inner cavity 2 of the reaction kettle from the inside of the reaction kettle, and the heat-conducting oil flows into the heating jacket 4 from the oil guide pipe 7 in a circulating mode, so that the circulation of the heat-conducting oil is realized, the probability of the explosion boiling of the heat-conducting oil is reduced, an oil tank is not required to be additionally arranged, the heat loss is reduced, the. According to the technical scheme, the heat conduction oil in the oil guide pipe 7 and the heat conduction oil in the heating jacket 4 respectively heat materials in the inner cavity 2 of the reaction kettle from the inside and the outside of the reaction kettle, the linkage of two heat sources is realized through the heat conduction oil circulating pump 6, the heating power of the electric heating pipe 5 is controlled according to the temperature in the kettle displayed by the thermocouple 26, so that the temperature of the heat conduction oil in the oil guide pipe 7 and the temperature of the heat conduction oil in the heating jacket 4 are controlled, the temperature in the kettle is adjusted, and the technical scheme further has the advantage of conveniently adjusting the temperature in the kettle. After the reaction is finished, the controller 27 is closed, the heat conduction oil circulating pump 6 is closed, the lower discharging valve 23 is opened, and the product is conveyed to a product storage container or a product using procedure from the lower discharging pipe 3.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A heating reaction kettle comprises a reaction kettle body (1) and a reaction kettle inner cavity (2), wherein a heating jacket (4) filled with heat conduction oil is arranged on the outer wall of the reaction kettle body (1), and a plurality of electric heating pipes (5) are arranged in the heating jacket (4); the method is characterized in that: the heating jacket (4) is connected with a heat conduction oil circulating pump (6), an oil guide pipe (7) is arranged in the reaction kettle inner cavity (2), one end of the oil guide pipe (7) is communicated with the oil outlet end of the heat conduction oil circulating pump (6), and one end, away from the heat conduction oil circulating pump (6), of the oil guide pipe (7) is communicated with the heating jacket (4).

2. A heated reaction vessel as defined in claim 1 wherein: the reaction kettle body (1) comprises a kettle cover (13) arranged on the upper portion of the reaction kettle body (1), one end of the oil guide pipe (7) penetrates through the kettle cover (13) to be communicated with the heat conduction oil circulating pump (6) from the reaction kettle inner cavity (2), and one end, far away from the heat conduction oil circulating pump (6), of the oil guide pipe (7) penetrates through the kettle cover (13) to be communicated with the heating jacket (4) from the reaction kettle inner cavity (2).

3. A heated reaction vessel as defined in claim 2 wherein: heating jacket (4) is including setting up oil inlet (8) and the oil-out (9) that set up at heating jacket (4) top in heating jacket (4) bottom, the oil feed end of conduction oil circulating pump (6) is through oil-out (9) and heating jacket (4) intercommunication, lead oil pipe (7) and keep away from the one end of conduction oil circulating pump (6) and pass through oil inlet (8) and heating jacket (4) intercommunication, oil inlet (8) and oil-out (9) are located the both sides of the center pin of the from kettle cover (13) to the reation kettle cauldron body (1) bottom direction of reation kettle cauldron body (1) respectively.

4. A heated reaction vessel as defined in claim 3 wherein: the outer wall of the reaction kettle body (1) is coated with a heat insulation layer (12).

5. A heated reaction vessel as defined in claim 3 wherein: the oil guide pipes (7) are spirally distributed in the inner cavity (2) of the reaction kettle.

6. A heated reaction vessel as set forth in claim 5 wherein: the stirring device is arranged on the kettle cover (13) and comprises a first stirring shaft (15) and a stirring motor (16) for driving the first stirring shaft (15) to rotate, and the stirring motor (16) is arranged on the upper surface of the kettle cover (13); first (mixing) shaft (15) are passed kettle cover (13) from kettle cover (13) top and are extended to reation kettle inner chamber (2) bottom, are provided with first stirring rake (17) on first (mixing) shaft (15), lead the central axis of oil pipe (7) helix and the coincidence of the central line of first (mixing) shaft (15) from being close to kettle cover (13) to keeping away from the direction of kettle cover (13), first (mixing) shaft (15) side is kept away from in first stirring rake (17) and is less than to the distance of first (mixing) shaft (15) side is close to in oil pipe (7) to the distance of first (mixing) shaft (15).

7. A heated reaction vessel as set forth in claim 6 wherein: the first stirring shaft (15) is connected with a plurality of second stirring shafts (18), the second stirring paddles (19) are arranged on the second stirring shafts (18), the reaction kettle body (1) comprises a side wall (14), and the second stirring shafts (18) are located between the oil guide pipe (7) and the side wall (14).

8. A heated reaction vessel as defined in claim 1 wherein: the reaction kettle is characterized in that an operation platform (10) convenient to operate and maintain is installed outside the reaction kettle body (1), the operation platform (10) is provided with an operation ladder (11) extending to the ground, and the heat conduction oil circulating pump (6) is installed on the operation platform (10).