Reaction kettle for preparing expandable polystyrene through high and low temperature stirring reaction

Abstract

The utility model discloses a reaction kettle for preparing expandable polystyrene by high and low temperature stirring reaction, and particularly relates to the technical field of reaction kettles, which comprises a reaction kettle body, a stirring component mounted in the reaction kettle body, a first shell fixedly connected to the upper surface of the reaction kettle body, and a jacket fixedly connected to the outer side of the reaction kettle body, the outer side of the jacket is fixedly connected with a fixed bracket and a cooling mechanism, and the top end of the reaction kettle body is communicated with a feeding pipe. Compared with the prior art, the reaction kettle disclosed by the utility model has the advantages that the stirring assembly is arranged, and two stirring blades can rotate oppositely while rotating in the reaction kettle body, so that expandable polystyrene reactants can be fully contacted and mixed, and meanwhile, the flowing of fluid in the reaction kettle can be accelerated, so that the convective heat transfer effect is enhanced; the inner wall of the reaction kettle body can be scraped by the two scrapers, so that the influence of material residues on subsequent reaction can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of reaction kettle, more specifically, the utility model relates to high low temperature stirring reaction preparation expanable polystyrene's reaction kettle. BACKGROUND

[0002] Expanable polystyrene is a polystyrene product added with foaming agent, appearance is colorless transparent bead granule, and the common foaming agent is low boiling point hydrocarbon, and when preparing, styrene monomer is reacted in autoclave once, when reacting in the reaction kettle, the raw materials need to be heated to ensure its reaction efficiency.

[0003] The prior art stirs the raw materials through the jacket or the built-in electric heating tube, the former heats the inner wall of the reaction kettle, and the heating is not uniform, and the latter extends into the inside of the kettle body, and the structure cannot rotate quickly like the stirring structure, and thus is inconvenient to clean.

[0004] Through the search, the China patent with the announcement number CN221230509U discloses an expanable polystyrene reaction kettle, which is installed on the outer surface of the kettle body at the through port by setting the detachable cover plate, the inner side of which is fixed with the copper pipe penetrating into the kettle body, the high-temperature steam or hot water can be introduced into the copper pipe, the raw materials can be heated uniformly and sufficiently, the cover plate can be detached after the reaction to extract the copper pipe, the cleaning of the copper pipe is facilitated, and the purposes of uniform heating and convenient cleaning are met.

[0005] The above-mentioned expanable polystyrene reaction kettle is used in practice, the existing reaction kettle stirs the expanable polystyrene through the fixed stirring, which can cause the uneven temperature distribution in the reaction kettle, and can cause the uneven foaming of the polystyrene, and the residue can be attached to the inner wall of the reaction kettle, which can cause the waste of resources. UTILITY MODEL CONTENTS

[0006] In order to overcome the above-mentioned defects of the prior art, the utility model provides the reaction kettle for preparing expanable polystyrene through high and low temperature stirring reaction, so as to solve the problems in the above-mentioned background art.

[0007] In order to achieve the above-mentioned purposes, the utility model provides the following technical scheme:

[0008] The reaction kettle for preparing expanable polystyrene through high and low temperature stirring reaction, including reaction kettle body, the reaction kettle body inside is installed with stirring assembly, the reaction kettle body upper surface is fixedly connected with first shell, the reaction kettle body outside is fixedly connected with jacket, the jacket outside is fixedly connected with fixed support, the jacket outside is fixedly connected with cooling mechanism, the reaction kettle body top is communicated with elastic feeding pipe, the reaction kettle body bottom is communicated with discharge pipe, the discharge pipe penetrates through the jacket and extends to the outside of the jacket, the jacket bottom is communicated with drain pipe;

[0009] The stirring assembly comprises a first motor fixedly connected to the upper surface of the first shell, a first rotating rod fixedly connected to the output end of the first motor, a first bevel gear fixedly connected to the bottom end of the first rotating rod, two second bevel gears meshing with the outer side of the first bevel gear, and stirring blades fixedly connected to one side of the second bevel gears.

[0010] By adopting the above technical scheme, the two stirring blades can uniformly mix the materials in the reaction kettle body through forward and reverse rotation, so that the heat transfer effect of the materials is improved.

[0011] As a further description of the above technical scheme, the first shell is fixedly connected with a second motor on one side, the stirring blades are fixedly connected with a third bevel gear at the output end, the second motor is meshed with a fourth bevel gear on one side, the fourth bevel gear is fixedly connected with a second rotating rod at the bottom end, the second rotating rod is rotatably connected with the first shell inside, the second rotating rod is fixedly connected with a supporting plate on the outer side, and the supporting plate is fixedly connected with two scrapers on the lower surface.

[0012] By adopting the above technical scheme, the two scrapers are driven by the supporting plate to scrape the inner wall of the reaction kettle body, so that the residue of the materials on the inner wall of the reaction kettle body is reduced.

[0013] As a further description of the above technical scheme, the cooling mechanism comprises a cooling coil installed in the jacket, a cooling box fixedly connected to the upper surface of the fixed support, a circulating pump installed at the top end of the cooling box, a communication pipe in communication with the input end and the output end of the circulating pump, one communication pipe in communication with one side of the jacket, and the other communication pipe in communication with one side of the cooling box, a water tank installed in the cooling box, two heat-conducting plates fixedly connected to the two sides of the water tank, a fan installed on one side of the heat-conducting plate, the fan fixedly connected with the inside of the cooling box, a water delivery pipe in communication with the bottom end of the cooling box, and one end of the water delivery pipe in communication with one side of the jacket.

[0014] By adopting the above technical scheme, the circulation of the cooling water in the jacket can be realized under the action of the circulating pump, so that the reaction kettle body can be quickly cooled to enter the low-temperature stage.

[0015] The technical effects and advantages of the present application are as follows:

[0016] 1. By setting the stirring assembly, compared with the prior art, the two stirring blades can rotate in the opposite direction while rotating in the reaction kettle body, which can make the expandable polystyrene reactants fully contact and mix, and can accelerate the fluid flow in the reaction kettle body, thereby enhancing the convective heat transfer effect, the two scrapers can scrape the inner wall of the reaction kettle body, which can avoid the influence of material residues on subsequent reactions.

[0017] 2. By setting the cooling mechanism, compared with the prior art, the cooling water in the jacket can circulate under the action of the circulating pump, and the cooling water can be cooled by the cooling box, which can quickly enter the low-temperature stage after the high-temperature reaction stage of the reaction kettle body, thereby facilitating the preparation process to meet the needs of different temperature stages. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the overall structure schematic diagram of the utility model.

[0019] Figure 2 It is the rear side structure schematic diagram of the fixed support of the utility model.

[0020] Figure 3 It is the reaction kettle body and jacket section view structure schematic diagram of the utility model.

[0021] Figure 4 It is the second rotating rod and support plate connection part structure schematic diagram of the utility model.

[0022] Figure 5 It is the cooling box internal structure schematic diagram of the utility model.

[0023] Figure 6 It is the Figure 4 It is the A part enlarged view structure schematic diagram of the utility model.

[0024] The reference signs are: 1, reaction kettle body; 2, first shell; 3, jacket; 4, fixed support; 5, feeding pipe; 6, discharge pipe; 7, drain pipe; 8, first motor; 9, first rotating rod; 11, first bevel gear; 12, second bevel gear; 13, stirring blade; 14, second motor; 15, third bevel gear; 16, fourth bevel gear; 17, second rotating rod; 18, second shell; 19, support plate; 20, scraper; 21, cooling coil; 22, cooling box; 23, circulating pump; 24, communication pipe; 25, water tank; 26, heat conduction plate; 27, fan; 28, water delivery pipe. DETAILED DESCRIPTION

[0025] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0026] The application discloses a reaction kettle for preparing expandable polystyrene by high and low temperature stirring reaction, as shown in the formula Figures 1-6 The application discloses a reaction kettle for preparing expandable polystyrene by high and low temperature stirring reaction, as shown in the formula

[0027] The stirring assembly comprises a first motor 8 fixedly connected with the upper surface of the first shell 2, a first rotating rod 9 fixedly connected with the output end of the first motor 8, a first bevel gear fixedly connected with the bottom end of the first rotating rod 9, two second bevel gears 12 meshed with the outer side of the first bevel gear, stirring blades 13 fixedly connected with one side of the second bevel gears 12, a second motor 14 fixedly connected with one side of the first shell 2, a third bevel gear 15 fixedly connected with the output end of the stirring blades 13, a fourth bevel gear 16 meshed with one side of the second motor 14, a second rotating rod 17 fixedly connected with the bottom end of the fourth bevel gear 16, the second rotating rod 17 being rotatably connected with the inside of the first shell 2, a second shell 18 fixedly connected with the bottom of the second rotating rod 17, the two second bevel gears 12 being rotatably connected with the inside of the second shell 18, a supporting plate 19 fixedly connected with the outer side of the second rotating rod 17, and two scrapers 20 fixedly connected with the lower surface of the supporting plate 19. The first motor 8 drives the first rotating rod 9 to rotate through the first bevel gear meshing with the two second bevel gears 12, so that the two second bevel gears 12 can drive the stirring blades 13 to rotate in opposite directions. Meanwhile, the second motor 14 can drive the third bevel gear 15 to mesh with the fourth bevel gear 16 to drive the second rotating rod 17 to rotate. The second rotating rod 17 can drive the two stirring blades 13 to rotate inside the reaction kettle body 1 through the second shell 18, so that the two stirring blades 13 can revolve while rotating in opposite directions inside the reaction kettle body 1, which can make the expandable polystyrene reactants fully contact and mix, thereby enhancing the convective heat transfer effect. Meanwhile, the second rotating rod 17 can drive the two scrapers 20 to scrape the inner wall of the reaction kettle body 1 through the supporting plate 19, which can avoid the influence of material residues on subsequent reactions.

[0028] Reference Figure 1 and 5As shown, the cooling mechanism includes cooling coil 21, which is installed inside the jacket 3, the fixed support 4 upper surface fixedly connected with cooling box 22, the cooling box 22 top end is installed with circulating pump 23, the circulating pump 23 output end and input end are both communicated with the communication pipe 24, one of the communication pipe 24 with jacket 3 side communication, another communication pipe 24 with cooling box 22 side communication, the cooling box 22 inside is installed with water tank 25, the water tank 25 both sides are fixedly connected with two heat conduction plates 26, the heat conduction plate 26 side is installed with fan 27, the fan 27 and cooling box 22 inside fixedly connected, the cooling box 22 bottom end is communicated with water delivery pipe 28, the water delivery pipe 28 one end with jacket 3 side communication, under the action of circulating pump 23 can be cooled water in jacket 3 inside and transported to the inside of water tank 25, through two heat conduction plates 26 can the heat of water tank 25 is absorbed and can be quickly with fan 27 can be released to the outside air heat, so that the cooling water in water tank 25 can be cooled to the inside through water delivery pipe 28 jacket 3, thereby realizing the circulation flow in jacket 3, can make the reaction kettle body 1 can quickly enter the low temperature stage, so as to meet the demand of different temperature stage in preparation process.

[0029] The utility model discloses a high and low temperature stirring reaction preparation polystyrene foaming reaction kettle, and the specific structure is as follows: Figures 1-6As shown, in the technical scheme, when the expandable polystyrene needs to be prepared by reaction, the expandable polystyrene material is put into the reaction kettle body 1 through the feeding pipe 5, and then the reaction kettle body 1 is heated by the external heating equipment, and the first motor 8 and the second motor 14 are started at the same time of the heating reaction, the first motor 8 drives the first rotating rod 9 to rotate, the first rotating rod 9 drives the first bevel gear to mesh with the second bevel gear 12 to rotate, the two second bevel gears 12 drive the stirring blades 13 to rotate in the opposite direction in the reaction kettle body 1, the second motor 14 drives the third bevel gear 15 to mesh with the fourth bevel gear 16 to rotate, the third bevel gear 15 drives the second rotating rod 17 to rotate, the second rotating rod 17 drives the two stirring blades 13 to rotate in the reaction kettle body 1, so that the material can be fully stirred and mixed, and the second rotating rod 17 drives the two scraping plates 20 to scrape the inner wall of the reaction kettle body 1 through the supporting plate 19, so that the material can be prevented from adhering to the inside of the reaction kettle body 1 during the reaction, when the reaction kettle body 1 needs to be in the low-temperature stage, the cooling coil 21 is started, the cooling coil 21 can absorb the heat emitted by the reaction kettle body 1, the circulating pump 23 is started, the circulating pump 23 can pump out the cooling water in the jacket 3 through the communication pipe 24 connected to the input end and deliver the cooling water to the water tank 25, then the two heat-conducting plates 26 can absorb the heat of the water tank 25, and the fan 27 can quickly emit the heat to the outside air, so as to reduce the temperature of the cooling water in the water tank 25, and because the circulating pump 23 continuously delivers the cooling water in the water tank 25, the cooling water in the water tank 25 can flow back to the jacket 3 through the water delivery pipe 28, so that the cooling water in the jacket 3 circulates, and the jacket 3 can better reduce the temperature of the reaction kettle body 1, so that the reaction kettle body 1 quickly enters the low-temperature stage.

[0030] In the drawings of the utility model, only the structures involved in the embodiments of the utility model are involved, other structures can be referred to the general design, and the same embodiments and different embodiments of the utility model can be combined with each other under the condition of no conflict.

[0031] The contents not described in detail in the specification all belong to the prior art known by those skilled in the art, and the model parameters of various electric appliances are not limited, and conventional equipment can be used, in the technical scheme, the electric appliance control elements not mentioned belong to the prior art, so they are not shown in the drawings, and will not be described here.

[0032] Finally, the above only describes the preferred embodiments of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. made in the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A reaction kettle for preparing expandable polystyrene by high and low temperature stirring reaction, comprising a reaction kettle body (1), characterized in that: The reaction kettle body (1) is internally provided with a stirring assembly, the upper surface of the reaction kettle body (1) is fixedly connected with a first shell (2), the outer side of the reaction kettle body (1) is fixedly connected with a jacket (3), the outer side of the jacket (3) is fixedly connected with a fixed support (4), the outer side of the jacket (3) is fixedly connected with a cooling mechanism, the top end of the reaction kettle body (1) is communicated with a feeding pipe (5), the bottom end of the reaction kettle body (1) is communicated with a discharge pipe (6), the discharge pipe (6) penetrates through the jacket (3) and extends to the outside of the jacket (3), and the bottom end of the jacket (3) is communicated with a drain pipe (7). The stirring assembly comprises a first motor (8), the first motor (8) is fixedly connected with the upper surface of the first shell (2), the output end of the first motor (8) is fixedly connected with a first rotating rod (9), the bottom end of the first rotating rod (9) is fixedly connected with a first bevel gear, the outer side of the first bevel gear is engaged with two second bevel gears (12), and one side of the second bevel gear (12) is fixedly connected with a stirring blade (13). One side of the first shell (2) is fixedly connected with a second motor (14), the output end of the stirring blade (13) is fixedly connected with a third bevel gear (15), one side of the second motor (14) is engaged with a fourth bevel gear (16), the bottom end of the fourth bevel gear (16) is fixedly connected with a second rotating rod (17), and the first rotating rod (9) and the second rotating rod (17) are rotationally connected in the interiors thereof. The outer side of the second rotating rod (17) is fixedly connected with a supporting plate (19), and the lower surface of the supporting plate (19) is fixedly connected with two scrapers (20). The cooling mechanism comprises a cooling coil (21), the cooling coil (21) is arranged in the interior of the jacket (3), and the upper surface of the fixed support (4) is fixedly connected with a cooling box (22).

2. The high and low temperature stirred reaction reactor for preparing expandable polystyrene according to claim 1, characterized in that: The second rotating rod (17) is rotationally connected with the interior of the first shell (2), the bottom of the second rotating rod (17) is fixedly connected with a second shell (18), and the two second bevel gears (12) are rotationally connected with the interior of the second shell (18).

3. The reactor for preparing expandable polystyrene by high and low temperature stirring reaction according to claim 1, characterized in that: The top end of the cooling box (22) is provided with a circulating pump (23), the output end and the input end of the circulating pump (23) are both communicated with a communication pipe (24), one communication pipe (24) is communicated with one side of the jacket (3), and the other communication pipe (24) is communicated with one side of the cooling box (22).

4. The reactor for preparing expandable polystyrene by high and low temperature stirring reaction according to claim 1, characterized in that: The interior of the cooling box (22) is provided with a water tank (25), the two sides of the water tank (25) are fixedly connected with two heat-conducting plates (26), one side of the heat-conducting plate (26) is provided with a fan (27), the fan (27) is fixedly connected with the interior of the cooling box (22), the bottom end of the cooling box (22) is communicated with a water delivery pipe (28), and one end of the water delivery pipe (28) is communicated with one side of the jacket (3).

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