Heat energy exchange device for engineering plastic production

Abstract

The utility model relates to the field of engineering plastics, in particular to a heat energy exchange device for engineering plastic production, which comprises a heat exchange tank, a heat exchange cavity is bolted at the bottom of an inner cavity of the heat exchange tank, a vacuum heat insulation layer is arranged between the heat exchange cavity and the heat exchange tank, and a recovery box is bolted at the top of the heat exchange tank. A cooling box is bolted to the top of the recycling box, a partition plate is bolted to the right side of an inner cavity of the cooling box, and a rotating rod is rotationally connected to the middle of the left side of the partition plate through a bearing. By means of the cooling box, the partition plate, the rotating rod, the rotating plate, the screen holes, the discharging groove and the like, plastic particles can be blown to the discharging groove through air flow generated in the fan connecting pipe, due to the fact that the plastic particles are light in weight, the plastic particles floating on the water surface are pushed to the discharging groove to be discharged through blowing of the air flow, and the discharging efficiency is greatly improved. The problem that heat is difficult to fully exchange with cooling water due to the fact that plastic particle bodies are light and difficult to fully contact with the cooling water can be solved.

Description

Technical Field

[0001] The utility model relates to the field of engineering plastic production, in particular to a heat energy exchange device used for engineering plastic production. Background Art

[0002] Engineering plastics are a type of high-performance polymer materials with excellent comprehensive properties, including high rigidity, low creep, high mechanical strength, good heat resistance, and good electrical insulation. They can be used for a long time in harsh chemical and physical environments and can replace metals as engineering structural materials. The main types of engineering plastics include polyamide, polyphenylene sulfide, polycarbonate, polyimide, polysulfone, polyether ketone, liquid crystal polymer, etc. These materials are widely used in electronics, automobiles, construction, medical health and other fields, among which the automotive industry is one of the fields with the largest application of engineering plastics.

[0003] After searching, a heat exchange device for engineering plastic production with publication number CN201820089824.4 is disclosed, which specifically includes a small water tank, wherein the small water tank is provided with support seats at the left side, the middle part and the right side of the top, and the three support seats are provided with rollers, and the three rollers are provided with third pulleys, and the third pulleys and the rollers are integrally formed, and the three third pulleys are sequentially connected by the first belt, and the middle part of the three rollers is provided with a directional pulley; the bottom of the small water tank is provided with support frames on both sides, and the bottom ends of the two support frames are provided with rollers, and the bottom ends of the two rollers are provided with bottom plates, and the right side of the top of the bottom plate is provided with a motor, and the output end of the motor is provided with a first pulley, and the first pulley is connected to the second pulley through the second belt, and the second pulley is provided on the roller in the middle part of the top of the small water tank. The utility model has a novel design and a reasonable structure, and can improve the efficiency of energy utilization and avoid energy waste.

[0004] However, the above device still has certain defects. For example, the surface temperature of plastic particles is high after extrusion, which is easy to cause adhesion. The existing plastic particle water cooling device usually uses a water tank. The plastic particles float on the surface of the cooling water. The surface above the liquid level cannot be quickly cooled. The newly produced plastic strips are directly placed in the cooling water for cooling, resulting in energy loss and great waste of resources. The melt temperature of plastic is as high as 250 degrees. Since the specific heat capacity of plastic is usually 1 to 2 kcal / (kg degree), and the specific heat capacity of water is 1 kcal / (kg degree). An extruder produces about 12 tons of plastic a day. The heat released by 12 tons of plastic from 250 degrees to 25 degrees can raise the temperature of 60 tons of 15-degree cold water to above 60 degrees. The usual practice now is to use water from a cooling tower for cooling, and the heat energy is not utilized at all, and electricity is consumed to cool the hot water.

[0005] Therefore, it is necessary to invent a heat exchange device for engineering plastic production to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a heat energy exchange device for the production of engineering plastics, which can effectively solve the above-mentioned technical problems.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heat energy exchange device for the production of engineering plastics, comprising a heat exchange tank, a heat exchange cavity is bolted to the bottom of the inner cavity of the heat exchange tank, a vacuum insulation layer is provided between the heat exchange cavity and the heat exchange tank, a recovery box is bolted to the top of the heat exchange tank, a cooling box is bolted to the top of the recovery box, a partition plate is bolted to the right side of the inner cavity of the cooling box, a rotating rod is rotatably connected to the middle part of the left side of the partition plate through a bearing, a rotating plate is bolted to the surface of the rotating rod in an annular arrangement, sieve holes are arranged on the surface of the rotating plate, a material discharge chute is bolted to the upper part of the front of the cooling box, a first water outlet pipe is connected to the right side of the top of the cooling box, and the other end of the first water outlet pipe is connected to the bottom of the cooling box, a second water outlet pipe is connected to the left side of the recovery box, and the other end of the second water outlet pipe is connected to the upper part of the left side of the heat exchange cavity, a heat exchange pipe is connected to the right side of the second water outlet pipe, and the other end of the heat exchange pipe is connected to the third water outlet pipe, and the lower part of the right side of the heat exchange cavity is connected to the fourth water outlet pipe.

[0008] Preferably, the right side of the cooling box is connected to a first cooling water supply pipe, and the upper part of the right side of the heat exchange chamber is connected to a second cooling water supply pipe. The first cooling water supply pipe can transport external pure cooling water to the cooling box, and the auxiliary cooling box cools the plastic extruded particles in the box. The second cooling water supply pipe can transport pure cooling water to the inside of the heat exchange chamber, and the auxiliary heat exchange pipe exchanges heat with the heated cooling water in the pipe.

[0009] Preferably, a driving motor is bolted to the upper part of the left side of the recovery box, and the left side of the rotating rod passes through the cooling box and is bolted to the output end of the driving motor. A circulation groove is opened in the middle of the partition plate. The driving motor is used as a driving source to drive the rotating rod to rotate rapidly in the cooling box. At the same time, after the rotating rod rotates, the rotating plate on its surface is synchronously driven to rotate.

[0010] Preferably, the upper part of the back side of the cooling box is connected with a fan connecting pipe, which is interconnected with an external fan through the fan connecting pipe. The airflow is transported from the fan connecting pipe to the cooling box through the external fan, and the airflow is blown toward the cooled plastic extruded particles, so that the plastic particles can be blown out by the airflow into the discharge chute for discharge.

[0011] Preferably, a filter net is bolted to the left side of the inner cavity of the recovery box, an adsorption net is bolted to the left side of the inner cavity of the recovery box, and a barrier net is bolted to the right side of the bottom of the cooling box. The barrier net is used to filter plastic particles and prevent them from entering the recovery box along with the heated cooling water. The filter net and the adsorption net can perform multi-layer filtration on the heated cooling water to prevent small plastic particles carried in the cooling water from passing through the barrier net and entering the heat exchange tube to cause blockage.

[0012] Preferably, the other end of the third water outlet pipe passes through the heat exchange tank and is connected to a reflux trough, and the other end of the fourth water outlet pipe passes through the heat exchange tank and is connected to a collecting bin. The reflux trough can extract the cooling water after heat exchange cooling and store it in the reflux trough for recycling, while the fourth water outlet pipe can extract the cooling water after heat exchange heating in the heat exchange chamber and temporarily store it in the collecting bin.

[0013] Preferably, a temperature sensor is bolted to the upper portion of the right side of the heat exchange chamber, through which the user can intuitively understand the actual temperature of the cooling water in the heat exchange chamber, and the cooling water can be discharged through the fourth water outlet pipe after reaching a suitable temperature.

[0014] Preferably, the upper portion of the left side of the cooling box is connected with a feeding pipe, which is connected to the plastic particle extrusion mechanism so that the plastic particles to be cooled directly enter the cooling box.

[0015] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0016] 1. Through the cooling box, partition plate, rotating rod, rotating plate, sieve hole, feeding trough and other components, the airflow generated in the fan connecting pipe can blow the plastic particles to the feeding trough. Since the plastic particles are light in weight, the plastic particles that float to the surface are pushed to the feeding trough for feeding through the airflow. This can solve the problem that the plastic particles are light in weight and difficult to fully contact with the cooling water, resulting in difficulty in fully exchanging heat with the cooling water.

[0017] 2. After reaching the specified temperature, the cooling water is discharged into the collection bin through the fourth water outlet pipe through the heat exchange chamber, the vacuum insulation layer, the first water outlet pipe, the second water outlet pipe, the third water outlet pipe and the fourth water outlet pipe. The high-temperature hot water in the collection bin can be transported to urban heating and other areas as needed, which can effectively improve the heat exchange efficiency between cooling water. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a front view of the overall structure of the utility model;

[0020] Figure 2 It is a front cross-sectional view of the overall structure of the utility model;

[0021] Figure 3 This is a cross-sectional view of the internal connection structure of the cooling box of the utility model;

[0022] Figure 4 It is a side sectional view of the internal connection structure of the cooling box of the utility model;

[0023] Figure 5 For the utility model Figure 2 A magnified view of the structure in the middle.

[0024] Description of reference numerals:

[0025] 1. Heat exchange tank; 2. Heat exchange cavity; 3. Vacuum insulation layer; 4. Recovery box; 5. Cooling box; 6. Partition plate; 7. Rotating rod; 8. Rotating plate; 9. Sieve hole; 10. Feed chute; 11. First water outlet pipe; 12. Second water outlet pipe; 13. Heat exchange pipe; 14. Third water outlet pipe; 15. Fourth water outlet pipe; 16. First cooling water supply pipe; 17. Second cooling water supply pipe; 18. Drive motor; 19. Circulation trough; 20. Fan connecting pipe; 21. Filter net; 22. Adsorption net; 23. Barrier net; 24. Reflux trough; 25. Collection bin; 26. Thermometer; 27. Feeding pipe. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0027] The utility model provides Figure 1-5The heat exchange device for engineering plastic production shown in the figure comprises a heat exchange tank 1, a heat exchange chamber 2 is bolted to the bottom of the inner cavity of the heat exchange tank 1, a vacuum insulation layer 3 is provided between the heat exchange chamber 2 and the heat exchange tank 1, a recovery box 4 is bolted to the top of the heat exchange tank 1, a cooling box 5 is bolted to the top of the recovery box 4, a partition plate 6 is bolted to the right side of the inner cavity of the cooling box 5, a rotating rod 7 is rotatably connected to the middle part of the left side of the partition plate 6 through a bearing, a rotating plate 8 is bolted to the surface of the rotating rod 7 in an annular arrangement, and a rotating plate 8 is arranged on the surface of the rotating plate 8. Sieve hole 9, a material discharge chute 10 is bolted to the upper part of the front of the cooling box 5, a first water outlet pipe 11 is connected to the right side of the top of the cooling box 5, and the other end of the first water outlet pipe 11 is connected to the bottom of the cooling box 5, a second water outlet pipe 12 is connected to the left side of the recovery box 4, and the other end of the second water outlet pipe 12 is connected to the upper part of the left side of the heat exchange chamber 2, a heat exchange pipe 13 is connected to the right side of the second water outlet pipe 12, and the other end of the heat exchange pipe 13 is connected to the third water outlet pipe 14, and a fourth water outlet pipe 15 is connected to the lower part of the right side of the heat exchange chamber 2.

[0028] The right side of the cooling box 5 is connected to a first cooling water supply pipe 16, and the upper part of the right side of the heat exchange chamber 2 is connected to a second cooling water supply pipe 17. The first cooling water supply pipe 16 can transport external pure cooling water to the cooling box 5, and the auxiliary cooling box 5 cools the plastic extruded particles in the box. The second cooling water supply pipe 17 can transport pure cooling water to the inside of the heat exchange chamber 2, and the auxiliary heat exchange pipe 13 exchanges heat with the heated cooling water in the pipe.

[0029] A driving motor 18 is bolted to the upper part of the left side of the recovery box 4, and the left side of the rotating rod 7 passes through the cooling box 5 and is bolted to the output end of the driving motor 18. A circulation groove 19 is opened in the middle of the partition plate 6. The driving motor 18 is used as a driving source to drive the rotating rod 7 to rotate rapidly in the cooling box 5. At the same time, after the rotating rod 7 rotates, the rotating plate 8 on its surface is synchronously driven to rotate.

[0030] The upper part of the back side of the cooling box 5 is connected with a fan connecting pipe 20, which is connected with an external fan. The airflow is transported from the fan connecting pipe 20 to the cooling box 5 through the external fan, and the airflow is blown toward the cooled plastic extruded particles, so that the plastic particles can be blown out by the airflow into the discharge chute 10 for discharge.

[0031] A filter screen 21 is bolted to the left side of the inner cavity of the recovery box 4, an adsorption screen 22 is bolted to the left side of the inner cavity of the recovery box 4, and a barrier screen 23 is bolted to the right side of the bottom of the cooling box 5. The barrier screen 23 is used to filter the plastic particles and prevent them from entering the recovery box 4 along with the heated cooling water. The filter screen 21 and the adsorption screen 22 can perform multi-layer filtration on the heated cooling water to prevent small plastic particles carried in the cooling water from passing through the barrier screen 23 and entering the heat exchange tube 13 to cause blockage.

[0032] The other end of the third water outlet pipe 14 passes through the heat exchange tank 1 and is connected to a reflux groove 24, and the other end of the fourth water outlet pipe 15 passes through the heat exchange tank 1 and is connected to a collecting bin 25. The reflux groove 24 can extract the cooling water after heat exchange cooling and store it in the reflux groove 24 for recycling, while the fourth water outlet pipe 15 can extract the cooling water after heat exchange heating in the heat exchange chamber 2 and temporarily store it in the collecting bin 25.

[0033] A temperature detector 26 is bolted to the upper part of the right side of the heat exchange chamber 2. The temperature detector 26 allows the user to intuitively understand the actual temperature of the cooling water in the heat exchange chamber 2, so that the cooling water can be discharged through the fourth water outlet pipe 15 after reaching a suitable temperature.

[0034] The upper portion of the left side of the cooling box 5 is connected with a feeding pipe 27 , which is connected to the plastic particle extrusion mechanism so that the plastic particles to be cooled directly enter the cooling box 5 .

[0035] Refer to the instruction manual Figure 1-5, working principle: through the cooling box 5, the partition plate 6, the rotating rod 7, the rotating plate 8, the sieve hole 9, the feeding chute 10 and other components, the driving motor 18 can be driven to make the rotating rod 7 drive the rotating plate 8 to push the plastic particles floating on the cooling water surface downward, so that the plastic particles are on the inner side of the two rotating plates 8, and push the plastic particles to be completely submerged in the cooling water, so that the high-temperature plastic particles are fully in contact with the cooling water, and then the cooling water and the plastic particles are fully exchanged with heat, and then the plastic particles after multiple heat exchanges are gradually cooled, and the plastic particles are blown to the feeding chute 10 by the airflow generated in the fan connecting pipe 20. Due to the light weight of the plastic particles, the plastic particles that float to the surface are pushed to the feeding chute 10 for feeding through the blowing of the airflow, which can solve the problem that the plastic particles are light and difficult to fully contact with the cooling water, resulting in difficulty in fully exchanging heat with the cooling water. Through the heat exchange chamber 2, the vacuum insulation layer 3, the first water outlet pipe 11, the second water outlet pipe 12, the third water outlet pipe 14 and the fourth water outlet pipe 15 and other components, first First, the first cooling water supply pipe 16 inputs the cooling water into the cooling box 5, and enters the left side of the inner cavity of the cooling box 5 through the circulation groove 19, completing heat exchange while cooling the plastic particles. The heated cooling water enters the recovery box 4 through the first water outlet pipe 11 for filtration, and then enters the heat exchange tube 13 through the second water outlet pipe 12. At this time, the cooling water is transported to the heat exchange cavity 2 through the second cooling water supply pipe 17 in the same way as the first cooling water supply pipe 16, and heat is exchanged with the heated cooling water in the cooling tube. The cooling water after cooling again will be discharged to the reflux groove 24 through the third water outlet pipe 14, and this type of cooling water is output to the first cooling water supply pipe 16 again, repeatedly cooling the plastic particles, reducing water resource consumption, and the temperature of the cooling water after heat exchange with the cooling water in the heat exchange tube 13 increases. After reaching the specified temperature, it is discharged to the collection bin 25 through the fourth water outlet pipe 15. The high-temperature hot water in the collection bin 25 can be transported to areas such as urban heating as needed, which can effectively improve the heat exchange efficiency between cooling water.

[0036] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A heat exchange device for the production of engineering plastics, comprising a heat exchange tank (1), characterized in that: The bottom of the inner cavity of the heat exchange tank (1) is bolted with a heat exchange cavity (2), a vacuum insulation layer (3) is provided between the heat exchange cavity (2) and the heat exchange tank (1), a recovery box (4) is bolted with the top of the heat exchange tank (1), a cooling box (5) is bolted with the top of the recovery box (4), a partition plate (6) is bolted with the right side of the inner cavity of the cooling box (5), a rotating rod (7) is rotatably connected to the middle part of the left side of the partition plate (6) through a bearing, a rotating plate (8) is bolted to the surface of the rotating rod (7) in an annular arrangement, and a sieve hole (9) is arranged on the surface of the cooling box (5). ) is bolted to a feed chute (10) on the upper front side, the top right side of the cooling box (5) is connected to a first water outlet pipe (11), and the other end of the first water outlet pipe (11) is connected to the bottom of the cooling box (5), the left side of the recovery box (4) is connected to a second water outlet pipe (12), and the other end of the second water outlet pipe (12) is connected to the upper left side of the heat exchange chamber (2), the right side of the second water outlet pipe (12) is connected to a heat exchange pipe (13), the other end of the heat exchange pipe (13) is connected to a third water outlet pipe (14), and the lower right side of the heat exchange chamber (2) is connected to a fourth water outlet pipe (15).

2. A heat exchange device for engineering plastic production according to claim 1, characterized in that: The right side of the cooling box (5) is connected to a first cooling water supply pipe (16), and the upper part of the right side of the heat exchange chamber (2) is connected to a second cooling water supply pipe (17).

3. A heat exchange device for engineering plastic production according to claim 1, characterized in that: A drive motor (18) is bolted to the upper portion of the left side of the recovery box (4), and the left side of the rotating rod (7) passes through the cooling box (5) and is bolted to the output end of the drive motor (18), and a flow slot (19) is provided in the middle of the partition plate (6).

4. A heat exchange device for engineering plastic production according to claim 1, characterized in that: The upper portion of the back side of the cooling box (5) is connected to a fan connecting pipe (20).

5. A heat exchange device for engineering plastic production according to claim 1, characterized in that: A filter screen (21) is bolted to the left side of the inner cavity of the recovery box (4), an adsorption screen (22) is bolted to the left side of the inner cavity of the recovery box (4), and a barrier screen (23) is bolted to the right side of the bottom of the cooling box (5).

6. A heat exchange device for engineering plastic production according to claim 1, characterized in that: The other end of the third water outlet pipe (14) passes through the heat exchange tank (1) and is connected to a reflux tank (24), and the other end of the fourth water outlet pipe (15) passes through the heat exchange tank (1) and is connected to a collection bin (25).

7. A heat exchange device for engineering plastic production according to claim 1, characterized in that: A temperature measuring device (26) is bolted to the upper portion of the right side of the heat exchange chamber (2).

8. The heat exchange device for engineering plastic production according to claim 1, characterized in that: The upper portion of the left side of the cooling box (5) is connected to a feeding pipe (27).

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