Cyclic heating device for safe production of acrylic resin

Abstract

The utility model discloses a cyclic heating device for safe production of acrylic resin. The cyclic heating device comprises an outer shell, a top cover arranged at the top of the outer shell, a feed port formed in one end of the top of the top cover and a discharge port formed in the bottom of the outer shell, the heating device further comprises a heating mechanism, the heating mechanism comprises a spiral heat conduction pipe arranged on the periphery of the inner side of the outer shell, a stirring shaft is rotationally connected to the middle of the bottom of the top cover, a coiled pipe is distributed on the stirring shaft, and the coiled pipe penetrates through the stirring shaft and circularly extends towards the two sides of the stirring shaft. According to the cyclic heating device for safe production of the acrylic resin, the arranged heating mechanism is mainly composed of a coiled pipe, a spiral heat conduction pipe and a hot water heater, the interior and the periphery of a material are heated at the same time in a hot water circulation mode, the coiled pipe can serve as a stirring blade for stirring, and the heating effect is further improved; the structure is simple and compact, and efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of acrylic resin production, in particular to a circulating heating device for safe production of acrylic resin. Background Art

[0002] Acrylic resin is a general term for polymers of acrylic acid, methacrylic acid and their derivatives. Acrylic resin coating is a thermoplastic or thermosetting resin coating, or acrylic radiation coating, made from acrylic resin obtained by copolymerizing acrylic esters and styrene with other acrylic esters. At present, in the production process of acrylic resin, it is necessary to heat the acrylic resin material. However, most of the existing heating devices only use the method of blowing hot air for point heating. The blowing hot air has a better heating effect on the surface of the material, but the inside cannot be effectively heated, which leads to uneven heating of the whole material and affects the efficiency.

[0003] Therefore, it is necessary to propose a circulating heating device for safe production of acrylic resin to solve the above problems. Utility Model Content

[0004] The main purpose of the utility model is to provide a circulating heating device for safe production of acrylic resin, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A circulating heating device for safe production of acrylic resin, comprising an outer shell, a top cover arranged on the top of the outer shell, a feed port arranged at one end of the top of the top cover, and a discharge port arranged at the bottom of the outer shell;

[0007] It also includes a heating mechanism, which includes a spiral heat-conducting pipe arranged on the periphery of the inner side of the outer shell, a stirring shaft is rotatably connected to the middle bottom part of the top cover, a serpentine pipe is arranged on the stirring shaft, and the serpentine pipe penetrates the stirring shaft and extends cyclically to both sides of the stirring shaft, the upper and lower ends of the stirring shaft are hollow structures, and the two ends of the serpentine pipe are respectively connected to the upper and lower sides of the stirring shaft, the upper end of the stirring shaft is connected to a first pipe, and the lower end of the spiral heat-conducting pipe is connected to the lower end of the stirring shaft through a third pipe, a hot water heater is arranged on one side of the outer shell, a water storage tank connected to the water inlet of the hot water heater is arranged on one side of the hot water heater, the upper end of the spiral heat-conducting pipe is connected to a second pipe, and the end of the second pipe away from the spiral heat-conducting pipe is connected to the water storage tank, and the end of the first pipe away from the stirring shaft is connected to the hot water outlet of the hot water heater.

[0008] Preferably, a bracket is provided at the inner lower end of the outer shell, and the bracket is used to fix one end of the third pipe close to the stirring shaft;

[0009] The rotational connection between the first pipe and the stirring shaft and the rotational connection between the third pipe and the stirring shaft are both performed through sealed bearings, and the sealed bearings are sealed ball bearings.

[0010] Preferably, an inner shell is arranged inside the outer shell, and the spiral heat conducting pipe is located between the inner shell and the outer shell.

[0011] Preferably, it also includes a driving mechanism for driving the stirring shaft to rotate, the driving mechanism includes a first gear arranged on the outer side of the upper end of the stirring shaft, one side of the first gear is meshed with a second gear with a smaller diameter than the first gear, and one end of the top of the top cover is provided with a motor for driving the second gear to rotate.

[0012] Preferably, it also includes a hot air blowing mechanism, which includes a blowing cylinder penetrating through one end of the top cover, the inner side of the blowing cylinder is rotatably connected to a rotating shaft, the lower end of the rotating shaft is provided with fan blades, the upper end of the rotating shaft is provided with a third gear that meshes with the first gear and has a smaller diameter than the first gear, and the lower end of the blowing cylinder is provided with a heating wire corresponding to the fan blades.

[0013] Preferably, a through hole is provided on the periphery of the third gear.

[0014] Preferably, a top shell for covering the driving mechanism is provided at the upper end of the top cover, and the upper end of the feed port extends above the top shell, and one end of the second pipe and the first pipe both extend outward through the top shell.

[0015] Preferably, a ventilation hole corresponding to the purge cylinder is provided at one end of the top of the top shell, and a filter screen for filtering dust is arranged in the ventilation hole.

[0016] Compared with the prior art, the utility model provides a circulating heating device for safe production of acrylic resin, which has the following beneficial effects:

[0017] The circulating heating device for safe production of acrylic resin mainly consists of a heating mechanism composed of a serpentine tube, a spiral heat conducting tube and a hot water heater. The material is heated from the inside and the outside at the same time by circulating hot water. The serpentine tube can act as a stirring blade for stirring, further improving the heating effect. The structure is simple and compact, and the efficiency is improved. The driving mechanism is convenient for driving the rotation of the stirring shaft, and the bracket can increase the stability of the third pipeline.

[0018] The circulating heating device for safe production of acrylic resin can further purge and heat the upper end of the material by linking the hot air purge mechanism with the driving mechanism, thereby further improving the efficiency. The vents and through holes facilitate the circulation of gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of the structure of the utility model with the outer shell removed;

[0021] Figure 3 This utility model Figure 2 Schematic diagram of the structure after the inner shell of the foundation is removed;

[0022] Figure 4 This utility model Figure 3 A structural diagram from another perspective of the basis;

[0023] Figure 5 It is a schematic diagram of the structure of the hot air blowing mechanism of the utility model in a disassembled state;

[0024] Figure 6 It is a schematic structural diagram of the stirring shaft of the utility model when the third pipeline is in a split state.

[0025] In the figure: 1. outer shell; 2. top shell; 3. feed port; 4. discharge port; 5. hot water heater; 6. water tank; 7. first pipeline; 8. second pipeline; 9. vent; 10. top cover; 11. inner shell; 12. spiral heat pipe; 13. bracket; 14. third pipeline; 15. stirring shaft; 16. serpentine pipe; 17. purge cylinder; 18. first gear; 19. motor; 20. second gear; 21. rotating shaft; 22. heating wire; 23. fan blade; 24. third gear; 25. through hole. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods. Example

[0027] like Figure 1-Figure 6 As shown, in this embodiment, a circulating heating device for safe production of acrylic resin includes an outer shell 1, a top cover 10 arranged on the top of the outer shell 1, a feed port 3 arranged at one end of the top of the top cover 10, and a discharge port 4 arranged at the bottom of the outer shell 1;

[0028] The heating mechanism also includes a heating mechanism, which includes a spiral heat-conducting pipe 12 arranged on the inner periphery of the outer shell 1, the spiral heat-conducting pipe 12 is a copper pipe, an inner shell 11 is arranged on the inner side of the outer shell 1, the inner shell 11 is made of copper, and the spiral heat-conducting pipe 12 is located between the inner shell 11 and the outer shell 1. A stirring shaft 15 is rotatably connected to the middle of the bottom of the top cover 10, and a serpentine pipe 16 is arranged on the stirring shaft 15, and the serpentine pipe 16 penetrates the stirring shaft 15 and extends cyclically to both sides of the stirring shaft 15. The upper and lower ends of the stirring shaft 15 are both hollow structures, and the two ends of the serpentine pipe 16 are respectively connected to the upper and lower sides of the stirring shaft 15, the upper end of the stirring shaft 15 is connected to the first pipeline 7, and the lower end of the spiral heat-conducting pipe 12 is connected to the lower end of the stirring shaft 15. The ends are connected through a third pipe 14, and the rotational connections between the first pipe 7 and the stirring shaft 15 and between the third pipe 14 and the stirring shaft 15 are both rotationally connected through a sealed bearing, and the sealed bearing is a sealed ball bearing. A bracket 13 is provided at the lower end of the inner side of the outer shell 1, and the bracket 13 is used to fix the end of the third pipe 14 close to the stirring shaft 15. A hot water heater 5 is provided on one side of the outer shell 1, and a water storage tank 6 connected to the water inlet of the hot water heater 5 is provided on one side of the hot water heater 5. The upper end of the spiral heat-conducting pipe 12 is connected to the second pipe 8, and the end of the second pipe 8 away from the spiral heat-conducting pipe 12 is connected to the water storage tank 6, and the end of the first pipe 7 away from the stirring shaft 15 is connected to the hot water outlet of the hot water heater 5.

[0029] Furthermore, in order to realize the rotation of the stirring shaft 15, a driving mechanism for driving the stirring shaft 15 to rotate is also included, and the driving mechanism includes a first gear 18 arranged on the outer side of the upper end of the stirring shaft 15, and one side of the first gear 18 is meshed with a second gear 20 with a diameter smaller than the first gear 18, and one end of the top of the top cover 10 is provided with a motor 19 for driving the second gear 20 to rotate.

[0030] Furthermore, a top shell 2 for covering the driving mechanism is provided at the upper end of the top cover 10, and the upper end of the feed port 3 extends above the top shell 2, and one end of the second pipe 8 and the first pipe 7 both extend outward through the top shell 2.

[0031] In addition, it also includes a hot air blowing mechanism, which includes a blowing cylinder 17 that is arranged through one end of the top of the top cover 10, the inner side of the blowing cylinder 17 is rotatably connected with a rotating shaft 21, the lower end of the rotating shaft 21 is provided with a fan blade 23, the upper end of the rotating shaft 21 is provided with a third gear 24 that meshes with the first gear 18 and has a smaller diameter than the first gear 18, the periphery of the third gear 24 is provided with a through hole 25, the lower end of the blowing cylinder 17 is provided with an electric heating wire 22 corresponding to the fan blade 23, and one end of the top of the top shell 2 is provided with a vent 9 corresponding to the blowing cylinder 17, and a filter net for filtering dust is provided in the vent 9.

[0032] Working principle: when in use, the material is added into the outer shell 1 through the feed port 3, and then the hot water heater 5 is controlled, and the hot water in the water tank 6 enters the hot water heater 5 for heating, and the control motor 19 drives the second gear 20 to rotate, and the second gear 20 drives the stirring shaft 15 to rotate through the first gear 18, and the hot water heated by the water tank 6 enters the inner side of the upper end of the stirring shaft 15 through the first pipe 7, and then flows into the serpentine tube 16. At the same time, when the stirring shaft 15 rotates, the serpentine tube 16 can stir the material, and the serpentine tube 16 can heat the inside of the material due to the flow of hot water, and the hot water flowing through the serpentine tube 16 It will enter the inner side of the lower end of the stirring shaft 15, and then enter the spiral heat-conducting pipe 12 through the third pipe 14 to continue to circulate and heat the periphery of the material, and then return to the water storage tank 6 through the second pipe 8, and the cycle is repeated. When the first gear 18 rotates, it will also drive the rotating shaft 21 to rotate through the third gear 24, and then the rotating shaft 21 drives the fan blades 23 to rotate to form a negative pressure. The outside air enters the top cover 10 through the vent 9, and then enters the purge cylinder 17. After being heated by the electric heating wire 22, it is blown onto the material inside the outer shell 1. The rotating shaft has a compact structure and a good heating effect, which greatly improves the production efficiency.

[0033] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A circulating heating device for safe production of acrylic resin, comprising an outer shell (1), a top cover (10) arranged on the top of the outer shell (1), a feed port (3) arranged at one end of the top of the top cover (10), and a discharge port (4) arranged at the bottom of the outer shell (1); Features: The invention also comprises a heating mechanism, the heating mechanism comprising a spiral heat conducting pipe (12) arranged on the inner periphery of the outer shell (1); a stirring shaft (15) is rotatably connected to the middle of the bottom of the top cover (10); a serpentine pipe (16) is arranged on the stirring shaft (15), and the serpentine pipe (16) penetrates the stirring shaft (15) and extends cyclically to both sides of the stirring shaft (15); the upper end and the lower end of the stirring shaft (15) are both hollow structures, and the two ends of the serpentine pipe (16) are respectively connected to the upper and lower sides of the stirring shaft (15); the upper end of the stirring shaft (15) is connected to a first pipe (7), and the first pipe (7) is rotatably connected to the upper end of the stirring shaft (15); The lower end of the spiral heat-conducting pipe (12) is connected to the lower end of the stirring shaft (15) via a third pipe (14), and the third pipe (14) is rotatably connected to the lower end of the stirring shaft (15). A hot water heater (5) is provided on one side of the outer shell (1), and a water storage tank (6) connected to a water inlet of the hot water heater (5) is provided on one side of the hot water heater (5). The upper end of the spiral heat-conducting pipe (12) is connected to a second pipe (8), and an end of the second pipe (8) away from the spiral heat-conducting pipe (12) is connected to the water storage tank (6), and an end of the first pipe (7) away from the stirring shaft (15) is connected to a hot water outlet of the hot water heater (5).

2. The circulating heating device for safe production of acrylic resin according to claim 1, characterized in that: A bracket (13) is provided at the inner lower end of the outer shell (1), and the bracket (13) is used to fix an end of the third pipe (14) close to the stirring shaft (15); The rotational connection between the first pipe (7) and the stirring shaft (15), and the rotational connection between the third pipe (14) and the stirring shaft (15) are both achieved through sealed bearings, and the sealed bearings are sealed ball bearings.

3. The circulating heating device for safe production of acrylic resin according to claim 2, characterized in that: An inner shell (11) is arranged on the inner side of the outer shell (1), and the spiral heat conducting pipe (12) is located between the inner shell (11) and the outer shell (1).

4. The circulating heating device for safe production of acrylic resin according to claim 1, characterized in that: The invention also comprises a driving mechanism for driving the stirring shaft (15) to rotate, the driving mechanism comprising a first gear (18) arranged on the outer side of the upper end of the stirring shaft (15), a second gear (20) having a smaller diameter than the first gear (18) being meshed with one side of the first gear (18), and a motor (19) for driving the second gear (20) to rotate is arranged at one end of the top of the top cover (10).

5. The circulating heating device for safe production of acrylic resin according to claim 4, characterized in that: The invention also comprises a hot air blowing mechanism, the hot air blowing mechanism comprising a blowing cylinder (17) penetrating through one end of the top of the top cover (10), the inner side of the blowing cylinder (17) being rotatably connected to a rotating shaft (21), the lower end of the rotating shaft (21) being provided with a fan blade (23), the upper end of the rotating shaft (21) being provided with a third gear (24) meshing with the first gear (18) and having a smaller diameter than the first gear (18), and the lower end of the blowing cylinder (17) being provided with an electric heating wire (22) corresponding to the fan blade (23).

6. The circulating heating device for safe production of acrylic resin according to claim 5, characterized in that: A through hole (25) is provided on the periphery of the third gear (24).

7. The circulating heating device for safe production of acrylic resin according to claim 6, characterized in that: The upper end of the top cover (10) is provided with a top shell (2) for covering the drive mechanism, and the upper end of the feed port (3) extends above the top shell (2), and one end of the second pipe (8) and the first pipe (7) both extend outward through the top shell (2).

8. The circulating heating device for safe production of acrylic resin according to claim 7, characterized in that: A ventilation opening (9) corresponding to the purge cylinder (17) is provided at one end of the top of the top shell (2), and a filter screen for filtering dust is arranged in the ventilation opening (9).

Images