Polyester material production heating device

Abstract

The utility model provides a heating device for polyester material production. The heating device comprises a tank body, a plurality of heat supply cavities are formed in the tank body in the vertical direction, the lowest heat supply cavity is connected with a heat supply box through a pipeline, a partition plate is arranged between every two adjacent heat supply cavities, an opening is formed in each partition plate, and a floating block capable of opening the opening is connected into the tank body in a sliding mode. A hollow stirring shaft is rotationally connected in the tank body, the stirring shaft is connected with a power part, the lower end of the stirring shaft communicates with the bottommost heat supply cavity, and the upper end of the stirring shaft penetrates out of the tank body and then is connected with a collecting box. The device is convenient to operate and simple in structure, the heat supply height of the tank body can be changed according to the quantity of materials, heat loss can be reduced, and the reaction speed can be increased.

Description

Technical Field

[0001] This utility model relates to the field of polyester material production technology, specifically to a heating device for polyester material production. Background Technology

[0002] Polyester materials are high molecular polymers with characteristics such as high mechanical strength, high transparency, chemical corrosion resistance, low air permeability, non-toxicity, good temperature resistance and electrical insulation, and are widely used in many fields. During the synthesis reaction of polyester materials, a suitable temperature is often required to ensure the reaction proceeds. At the same time, stirring in the reaction vessel can fully mix various catalysts, additives and other materials to avoid local overheating or underheating, and ensure that the reaction proceeds uniformly in the whole system.

[0003] Patent CN 215094838 U discloses a curing and thickening stirring device for unsaturated polyester resin, including a shell, a fixed plate fixedly connected to the outside of the connecting plate, a ball rotatably connected to the inside of the fixed plate, a side support plate fixedly connected to one end of the fixed plate, a main support plate fixedly connected to one end of the connecting plate, a stirring blade fixedly connected between the side support plate and the main support plate, and a partition cylinder fixedly connected to the inside of the shell.

[0004] However, the device still has the following problems:

[0005] 1. Each time the device is used, the heating device needs to heat the entire device, which takes a long time. When the amount of reactants is small, it is not easy to control the reaction temperature when heating the entire device.

[0006] 2. Adding all the materials at once can easily lead to slow heating of the materials, affecting the reaction efficiency. Utility Model Content

[0007] In order to solve the problems existing in the prior art, a heating device for polyester material production is provided to solve the problems mentioned in the above technical background.

[0008] The technical solution adopted by this utility model to solve its technical problem is:

[0009] This utility model proposes a heating device for polyester material production, including a tank body. The tank body has several heating chambers arranged vertically. The lowest heating chamber is connected to a heating box via a pipe. A partition is arranged between adjacent heating chambers, and the partition has an opening. A float block that can open the opening is slidably connected inside the tank body. A hollow stirring shaft is rotatably connected inside the tank body. The stirring shaft is connected to a power component. The lower end of the stirring shaft is connected to the lowest heating chamber, and the upper end extends out of the tank body and is connected to a collection box.

[0010] Preferably, the tank body is slidably connected to a baffle capable of sealing the opening, the baffle having a limiting groove, and the tank body is also slidably connected to a limiting rod capable of sliding into the limiting groove, the limiting rod being fixed to the tank body by a compression spring.

[0011] Preferably, a sliding rod is slidably connected inside the baffle. One end of the sliding rod is fixed with a top rod that can push the limiting rod to slide, and the other end is fixed with an iron plate. The float is connected with a magnet that cooperates with the iron plate.

[0012] Preferably, the magnetic force of the magnet is greater than the elastic force of the compression spring.

[0013] Preferably, the baffle is fixed to the tank body by a tension spring.

[0014] Preferably, the tank body is provided with a plurality of feed pipes, the feed pipes are connected to the feed box, and valves are installed on the feed pipes.

[0015] Preferably, the valve also includes a sliding rheostat, wherein a gear is fixed on the valve stem, the gear is engaged with a rack, and the rack is fixed to the slide plate of the sliding rheostat.

[0016] Preferably, the heating box contains a fluid medium, and a water pump for transporting the medium is also placed inside the heating box, with the sliding rheostat electrically connected to the water pump.

[0017] Preferably, the stirring shaft is fixed with several stirring rods, and the stirring rods have cavities inside, which are connected to the interior of the stirring shaft.

[0018] Preferably, the power component is a motor, and the motor is electrically connected to the sliding rheostat.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. This utility model has several heating chambers arranged vertically in the tank body, which are separated by partitions with openings. When a float slides to a corresponding height, it can open the corresponding opening. When the tank body is used for heating, the float can float to different heights according to the amount of material, thereby opening different numbers of heating chambers. At this time, the tank body that is not in contact with the material is not heated, which can reduce heat waste and also avoid the tank body being unable to transfer heat to the material when heated alone, thus preventing the tank body from being damaged by continuous high temperature. The tank body that is in contact with the material can heat up quickly, thereby driving the material to be heated and improving heating efficiency.

[0021] 2. This utility model has a valve installed on the feed pipe, with a gear fixed on the valve stem. A rack meshes with one side of the gear, and the rack is fixed to the slide plate of the sliding rheostat. Rotating the valve stem can change the amount of material entering the tank per unit time. When the valve is rotated forward, the flow rate of the feed pipe increases, the gear pushes the rack to move, and the rack drives the slide plate to move, reducing the resistance of the sliding rheostat while keeping the voltage constant. This increases the current of the water pump directly connected to the sliding rheostat, speeding up the pump. This allows the pump to transfer more heat from the heat source to the tank more quickly and efficiently, thus adapting to the increased flow rate of the material. When the valve is rotated in reverse, the amount of material fed per unit time decreases, the pump speed slows down, and the medium flow rate also slows down.

[0022] 3. The stirring shaft of this utility model is hollow inside, and the cavity of the stirring shaft is connected to the heating chamber. Multiple stirring rods are fixed on the stirring shaft, and the cavities of the stirring rods are connected to the cavities inside the stirring shaft. When heating, the medium flows into the cavities of the stirring shaft and the stirring rods, which can heat the material while stirring, thereby further improving the heating efficiency. Attached Figure Description

[0023] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0024] Figure 1 This is a perspective view of the utility model;

[0025] Figure 2 This is a front view of the present invention;

[0026] Figure 3 This is an internal structural view of the present invention;

[0027] Figure 4 This is a schematic diagram of the baffle of this utility model (working state one);

[0028] Figure 5 This is a schematic diagram of the baffle of this utility model (working state two);

[0029] Figure 6 This is a schematic diagram of the valve mechanism of this utility model.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Tank body; 2. Heating chamber; 3. Heating box; 4. Baffle; 5. Float; 6. Agitator shaft; 7. Baffle; 8. Limiting rod; 9. Compression spring; 10. Sliding rod; 11. Top rod; 12. Iron sheet; 13. Magnet; 14. Tension spring; 15. Feed pipe; 16. Feed box; 17. Sliding rheostat; 18. Rack; 19. Motor; 20. Agitator rod; 21. Discharge pipe. Detailed Implementation

[0032] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0033] Example 1

[0034] like Figures 1-6 As shown, this embodiment proposes a heating device for polyester material production, including a tank 1. The tank 1 has several heating chambers 2 arranged vertically. The lowest heating chamber 2 is connected to a heating box 3 through a pipe. A partition 4 is arranged between adjacent heating chambers 2. The partition 4 has an opening. A float 5 that can open the opening is slidably connected inside the tank 1. A hollow stirring shaft 6 is rotatably connected inside the tank 1. The stirring shaft 6 is connected to a power component. The lower end of the stirring shaft 6 is connected to the lowest heating chamber 2, and the upper end extends out of the tank 1 and is connected to a collection box.

[0035] The partition 4 separates the adjacent heating chambers 2, keeping the adjacent heating chambers 2 sealed.

[0036] The heating medium is transported from the heating box 3 to the heating chamber 2 through a pipeline. Then the heating medium enters the stirring shaft 6 and finally flows from the stirring shaft 6 into the collection box for collection, which is convenient for subsequent processing.

[0037] The medium is usually water or heat transfer oil.

[0038] The tank 1 has multiple heating chambers 2 in the vertical direction. The float 5 can float to different heights according to the amount of material, thereby opening different numbers of heating chambers 2. During the heating process, the parts of the tank 1 that are not in contact with the material are not heated, which can reduce heat waste and also prevent the tank 1 from overheating and being damaged due to the inability to transfer heat to the material when heated alone. At the same time, the parts of the tank 1 that are in contact with the material can heat up quickly, thereby driving the material to be heated and improving heating efficiency.

[0039] When the flow rate of the heating medium is constant, the cross-section of the heating chamber 2 remains unchanged. The higher the height, the larger the volume, the more heat exchange is generated, and the easier it is to lose heat. Therefore, the volume of the heating chamber 2 is determined by the amount of material, and the corresponding number of heating chambers 2 are connected so that the height of the heat source in the heating chamber 2 always corresponds to the height of the material, which can greatly improve the heating efficiency.

[0040] The tank body 1 is slidably connected to a baffle 7 that can block the opening. The baffle 7 has a limiting groove. The tank body 1 is also slidably connected to a limiting rod 8 that can slide into the limiting groove. The limiting rod 8 is fixed to the tank body 1 by a compression spring 9.

[0041] When the baffle 7 blocks the opening, the limiting rod 8 is inserted into the limiting groove, which can lock the sliding of the baffle 7 and facilitate the sealing of the opening.

[0042] A slide rod 10 is slidably connected inside the baffle 7. One end of the slide rod 10 is fixed with a top rod 11 that can push the limit rod 8 to slide, and the other end is fixed with an iron plate 12. The float 5 is connected with a magnet 13 that cooperates with the iron plate 12.

[0043] When the float 5 rises with the material, the magnet 13 and the iron sheet 12 are at the same height, which will attract the iron sheet 12 and cause the iron sheet 12 to slide. The iron sheet 12 drives the top rod 11 to slide through the slide rod 10. The top rod 11 pushes the limiting rod 8 out of the baffle 7, releasing the lock on the baffle 7, so that the baffle 7 can slide freely and open the opening.

[0044] The magnetic force of magnet 13 is greater than the elastic force of compression spring 9.

[0045] The baffle 7 is fixed to the tank body 1 by a tension spring 14.

[0046] When the magnet 13 pulls the top rod 11 to push the limiting rod 8 out of the limiting groove on the baffle 7, the baffle 7 can slide freely. At this time, the tension spring 14 will pull the baffle 7 to slide and open the opening. After the material liquid level rises to a certain height, the baffle 7 can open automatically, so that the adjacent heating chambers can be connected without manual intervention, which can improve efficiency.

[0047] The tank body 1 is provided with several feed pipes 15, which are connected to the feed box 16, and valves are installed on the feed pipes 15.

[0048] The quality indicators of polyester products, such as molecular weight, crystallinity, and color, are closely related to various factors in the reaction process. Therefore, by changing the feed rate of the material through valves, it is possible to make the feed rate appropriate, which helps to accurately control the reaction conditions and thus ensure the stability and consistency of product quality.

[0049] While changing the feed rate, it is also necessary to change the heating rate of the heating box 3 to ensure the stability of the reaction process.

[0050] It also includes a sliding rheostat 17, a gear fixed on the valve stem, a rack 18 engaged with the gear, and the rack 18 fixed to the slide plate of the sliding rheostat 17.

[0051] The sliding rheostat 17 is fixedly connected to the feed box 16.

[0052] The heating box 3 contains a fluid medium, and a water pump for transporting the medium is also placed inside the heating box. The sliding rheostat 17 is electrically connected to the water pump.

[0053] The water pump is directly connected to a water pump motor, which is a DC motor and is connected in series with a sliding rheostat 17. When the resistance of the sliding rheostat 17 decreases, the voltage of the water pump motor remains stable, the current through the water pump motor increases, and the speed of the water pump motor increases, thereby increasing the amount of medium transported per unit time.

[0054] Rotating the valve stem can change the amount of material entering the tank 1 per unit time. When the valve is rotated forward, the flow rate of the feed pipe 15 increases. At this time, the gear pushes the rack 18, and the rack 18 drives the slider of the sliding rheostat to move, so that the resistance of the sliding rheostat decreases, the voltage remains constant, the speed of the water pump increases, and the heat from the heat source can be transferred to the heating chamber 2 more quickly and in greater quantities per unit time, so as to adapt to the increased flow rate of the material.

[0055] Generally, only one type of material is introduced into the tank 1 for mixing at the same time. When two types of materials are introduced at the same time, only the feed box 16 with higher feed speed requirement has a fixed sliding rheostat, and the other feed box 16 does not have a sliding rheostat 17, so as to avoid interference caused by setting multiple sliding rheostats 17.

[0056] When tank 1 is fed with two or more materials at the same time, the valves of the two feed boxes 16 can be fixed coaxially, and the valve of one of the feed boxes 16 can be connected to the sliding rheostat 17 to realize the synchronous adjustment of the feeding speed of multiple materials.

[0057] A discharge pipe 21 is installed at the bottom of the tank body 1.

[0058] This facilitates the discharge and collection of materials from tank 1 after the reaction is complete.

[0059] The stirring shaft 6 is fixed with several stirring rods 20. The stirring rods 20 have cavities inside, which are connected to the interior of the stirring shaft 6.

[0060] The cavity of the stirring shaft 6 is connected to the heating chamber 2. Multiple stirring rods 20 are fixed on the stirring shaft 6. The cavity of the stirring rod 20 is connected to the cavity inside the stirring shaft 6. When heating, the medium flows into the cavities of the stirring shaft 6 and the stirring rods 20, which can heat the material while stirring, thereby further improving the heating efficiency.

[0061] Example 2

[0062] Reference Appendix Figure 1 - Appendix Figure 6 The other structures are the same as in Embodiment 1. The difference is that in this embodiment, the problem of the stirring shaft not being able to stir in time due to the increase in material per unit time is taken into consideration.

[0063] The power component is motor 19, which is electrically connected to the sliding rheostat.

[0064] The motor 19 is directly connected to the first gear, and the stirring shaft 6 is fixedly fitted with the second gear, with the first gear meshing with the second gear.

[0065] Motor 19 is a DC motor. Motor 19 is connected in series with sliding rheostat 17. When the resistance of sliding rheostat 17 decreases, the voltage of motor 19 remains stable. The current through motor 19 will increase, and the speed of motor 19 will increase. This will increase the stirring speed of stirring shaft 6, adapt to the increased amount of material, and enable the material to be mixed evenly.

[0066] Specific work process:

[0067] S1: Turn on the power, start the motor 19 and the water pump in the heating box 3, input the heating medium into the heating chamber 2 at the bottom of the tank 1, and then open the valve on the feed pipe 15 so that the material in the feed box 16 is discharged into the tank 1 through the feed pipe 15. The motor 19 drives the stirring shaft 6 to stir.

[0068] S2: As the material continues to enter, the float 5 slides and rises in the tank 1 along with the material. When the float 5 slides to the position of the upper heating chamber 2, the magnet 13 fixed on the float 5 is at the same height as the baffle 7. The magnet 13 generates an attraction force on the iron sheet 12 in the baffle 7. The iron sheet 12 drives the top rod 11 to slide in the baffle 7 through the slide rod 10. The top rod 11 pushes the limiting rod 8 out of the limiting groove on the baffle 7, and the limiting rod 8 releases the locking of the baffle 7.

[0069] S3: After the baffle 7 is unlocked, the tension spring 14 pulls the baffle 7 to slide, so that the baffle 7 releases the blockage of the opening, and the heating medium in the lower heating chamber 2 flows into the upper heating chamber 2, so that the upper heating chamber 2 begins to heat the material.

[0070] S4: Depending on the requirements of different materials, rotate the valve to speed up or slow down the discharge speed of the feed pipe 15, thereby changing the current and changing the pump speed, thus changing the heating speed of the heating box 3.

[0071] S5: After the reaction is complete, the finished product is discharged through the discharge pipe 21.

[0072] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A heating device for the production of polyester material comprising a tank (1), characterised in that, The tank body (1) is provided with several heat supply cavities (2) in vertical direction, the lowermost heat supply cavity (2) is connected with a heat supply box (3) through a pipeline, the adjacent heat supply cavities (2) are provided with a partition plate (4), the partition plate (4) is provided with an opening, the tank body (1) is slidably connected with a float (5) capable of opening the opening; the tank body (1) is rotatably connected with a hollow stirring shaft (6), the stirring shaft (6) is connected with a power member, the lower end of the stirring shaft (6) is communicated with the lowermost heat supply cavity (2), and the upper end of the stirring shaft (6) is connected with a collecting box after penetrating out of the tank body (1).

2. A heating device for the production of a polyester material according to claim 1, characterized in that The tank body (1) is slidably connected with a baffle (7) capable of blocking the opening, the baffle (7) is provided with a limiting slot, the tank body (1) is further slidably connected with a limiting rod (8) capable of sliding into the limiting slot, and the limiting rod (8) and the tank body (1) are fixed through a compression spring (9).

3. A heating device for the production of a polyester material according to claim 2, characterized in that The baffle (7) is slidably connected with a sliding rod (10), one end of the sliding rod (10) is fixed with a jacking rod (11) capable of sliding the limiting rod (8), and the other end of the sliding rod (10) is fixed with an iron sheet (12), and the float (5) is connected with a magnet (13) matched with the iron sheet (12).

4. A heating device for the production of a polyester material according to claim 3, characterized in that The magnetic force of the magnet (13) is greater than the elastic force of the compression spring (9).

5. A heating device for the production of a polyester material according to claim 2, characterized in that The baffle (7) and the tank body (1) are fixed through a tension spring (14).

6. A heating device for the production of a polyester material according to claim 1, characterized in that The tank body (1) is provided with several feeding pipes (15), the feeding pipes (15) are communicated with a feeding box (16), and the feeding pipes (15) are provided with valves.

7. A heating device for the production of a polyester material according to claim 6, characterized in that Further comprising a sliding rheostat (17), a gear is fixed on the valve rod of the valve, a rack (18) is matched with the gear, and the rack (18) is fixed with a sliding sheet of the sliding rheostat (17).

8. A heating device for the production of a polyester material according to claim 7, characterized in that The heat supply box (3) contains a fluid medium, a water pump for conveying the medium is arranged in the heat supply box, and the sliding rheostat (17) is electrically connected with the water pump.

9. A heating device for the production of a polyester material according to claim 1, characterized in that The stirring shaft (6) is fixed with several stirring rods (20), and the stirring rods (20) have cavities communicated with the inside of the stirring shaft (6).

10. A heating device for the production of a polyester material according to claim 7, characterized in that The power member is a motor (19), and the motor (19) is electrically connected with the sliding rheostat.

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