A device for uniformly heating polymer particles

Abstract

The present invention discloses a uniform heating device for polymer particles, and relates to the technical field of heating devices. The uniform heating device for polymer particles comprises a mounting frame; a storage tank, which is arranged on the mounting frame, stores polymer particles inside, and has a discharge port on the lower side; a hot air blower, which is arranged on the mounting frame, and has an air outlet facing upward; a conveyor, which comprises an active roller, a driven roller, and a conveyor belt wrapped around the active roller and the driven roller, wherein the conveyor is arranged on the mounting frame at a position between the hot air blower and the storage tank, the conveyor belt is parallel to the horizontal plane, and a plurality of air holes are evenly arranged on the conveyor belt, and the diameter of the air holes is smaller than the diameter of the polymer particles. The polymer particles are heated in advance by the hot air blower, and the temperature of the polymer particles is kept constant by the heat preservation channel, so that a device with good preheating uniformity is obtained.

Description

Technical Field

[0001] The invention relates to the technical field of heating equipment, in particular to a uniform heating equipment for polymer particles. Background Art

[0002] Polymer material is a relatively light material, and its application in industry is becoming more and more extensive. Nowadays, polymer particles are used to make various outer layers and bottles, but basically they need to be preheated in advance. However, the existing equipment has poor preheating uniformity. It is necessary to provide a device with good preheating uniformity. Summary of the invention

[0003] In view of this, the purpose of the invention is to provide a polymer particle uniform heating device to effectively solve the technical problems in the above-mentioned background technology.

[0004] Based on the above purpose, the invention provides a polymer particle uniform heating device, the polymer particle uniform heating device comprises a mounting frame;

[0005] The storage tank is arranged on the mounting frame, and polymer particles are stored inside, and a discharge port is arranged on the lower side;

[0006] A hot air blower is arranged on a mounting frame, with an air outlet facing upward;

[0007] The conveyor comprises a driving roller, a driven roller and a conveyor belt wrapped around the driving roller and the driven roller. The conveyor is arranged on a mounting frame between a hot air blower and a storage tank. The conveyor belt is parallel to a horizontal plane. A plurality of air holes are evenly arranged on the conveyor belt. The diameter of the air holes is smaller than the diameter of the polymer particles.

[0008] Optionally, a guide air duct is provided between the air outlet of the hot air blower and the lower part of the conveyor belt, and an isolation channel is provided between the upper part of the conveyor belt and the discharge port of the storage tank.

[0009] Optionally, the isolation channel is open at both ends, and the lower end is located on the right side and contracts upward, and the lower end port of the isolation channel faces the top of the guide air duct.

[0010] Optionally, the uncontracted portion of the lower end of the isolation channel is provided with isolation bristles, the upper ends of the isolation bristles are fixedly disposed on the isolation channel, and the lower ends of the isolation bristles are in contact with the conveyor belt.

[0011] Optionally, a breaking device is provided in the isolation channel, and the breaking device includes a plurality of breaking rods, both ends of the breaking rods are fixedly connected to the inner wall of the isolation channel, the breaking rods are parallel to the horizontal plane, and the breaking rods are arranged in multiple layers. The plane where the breaking rods on the same layer are located is parallel to the horizontal plane, the vertical projections of the breaking rods on adjacent layers do not overlap, and the gaps between adjacent breaking rods on the same layer are equal.

[0012] Optionally, a heat preservation channel is provided on the outside of the portion of the conveyor belt located on the right side of the guide air duct.

[0013] Optionally, the heat preservation channel is divided into two upper and lower spaces by the conveyor belt, and a plurality of supplementary heating modules are provided in the lower space, wherein the supplementary heating modules include an electric heating wire and a fan provided below the electric heating wire.

[0014] Optionally, a plurality of grain turning modules are provided in the upper space, and the grain turning modules include a flipping motor arranged on the side wall of the heat preservation channel, a rotating rod arranged on the output shaft of the flipping motor, and a plurality of metal bristles arranged on the rotating rod, wherein one end of the metal bristles is fixedly connected to the rotating rod and the other end is free, and the length of the metal bristles is greater than the distance from the bottom of the rotating rod to the upper surface of the conveyor belt.

[0015] From the above description, it can be seen that the present application proposes a polymer particle uniform heating device, which preheats the polymer particles by a hot air blower and keeps the temperature of the polymer particles constant by a heat preservation channel, so as to obtain a device with good preheating uniformity. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of a polymer particle uniform heating device according to a specific embodiment of the present invention. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solutions and advantages of the invention more clearly understood, the invention is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0018] It should be noted that all expressions using "first" and "second" in the embodiments of the invention are for distinguishing two non-identical entities with the same name or non-identical parameters. It can be seen that "first" and "second" are only for the convenience of expression and should not be understood as limitations on the embodiments of the invention. In addition, the direction and position terms mentioned in the invention, such as "upper", "middle", "lower", "front", "back", "left", "right", "inside", "outside", "side", etc., are only for reference to the directions and positions of the attached drawings. Therefore, the direction and position terms used are used to illustrate and understand the invention, rather than to limit the invention, and will not be explained one by one in the subsequent embodiments.

[0019] As shown in the figure, a polymer particle uniform heating device is provided based on the above purpose, and the polymer particle uniform heating device includes a mounting frame 1;

[0020] The storage tank 2 is arranged on the mounting frame 1, and stores polymer particles inside. A discharge port is arranged on the lower side. The discharge of the polymer particles is controlled by opening and closing the discharge port.

[0021] The hot air blower 3 is arranged on the mounting frame 1, with the air outlet facing upward; the hot air blower 3 blows out hot air so that the falling polymer particles are evenly heated in the air.

[0022] The conveyor 4 includes a driving roller 41, a driven roller 42 and a conveyor belt 43 wrapped around the driving roller 41 and the driven roller 42. The conveyor 4 is arranged on the mounting frame 1 between the hot air blower 3 and the storage tank 2. The conveyor belt 43 is parallel to the horizontal plane. A plurality of air holes are evenly arranged on the conveyor belt 43. The diameter of the air holes is smaller than the diameter of the polymer particles. The polymer particles fall onto the conveyor belt 43 and are transported from one end to the other end by the conveyor belt 43.

[0023] In order to reduce the heat dissipation, the hot air passes through the conveyor belt 43 and blows toward the falling polymer particles, while also heating the conveyor belt 43 . A guide air duct is provided between the air outlet of the hot air blower 3 and the lower part of the conveyor belt 43 .

[0024] Furthermore, in order to prevent the polymer particles from flying everywhere, an isolation channel is provided between the upper part of the conveyor belt 43 and the discharge port of the storage tank 2. The isolation channel is open at both ends, and the lower end is located on the right side and shrinks upward, and the lower end of the isolation channel faces the top of the guide air duct.

[0025] In order to further restrain the hot air and polymer particles, the uncontracted portion at the lower end of the isolation channel is provided with isolation soft hair, the upper end of the isolation soft hair is fixedly arranged on the isolation channel, and the lower end of the isolation soft hair is in contact with the conveyor belt 43. The dense isolation soft hair does not interfere with the movement of the conveyor belt 43, but also hinders the movement of the polymer particles.

[0026] In order to break up the polymer particles, increase the gap between adjacent polymer particles, and improve the heating efficiency, a breaking device is provided in the isolation channel, and the breaking device includes a plurality of breaking rods 5, both ends of which are fixedly connected to the inner wall of the isolation channel, and the breaking rods 5 are parallel to the horizontal plane. The breaking rods 5 are arranged in multiple layers, and the plane where the breaking rods 5 of the same layer are located is parallel to the horizontal plane. The vertical projections of the breaking rods 5 of adjacent layers do not overlap, and the gaps between adjacent breaking rods 5 of the same layer are equal. The polymer particles will be opened when they hit the breaking rods 5, and the falling polymer particles will be scattered relatively evenly through the breaking of the multiple layers of breaking rods 5.

[0027] In order to maintain the temperature, the conveyor belt 43 is wrapped with a heat preservation channel on the right side of the guide air duct. The heat preservation channel is divided into two spaces, upper and lower, by the conveyor belt 43. A plurality of supplementary heat modules are arranged in the lower space. The supplementary heat modules include an electric heating wire 61 and a fan 62 arranged below the electric heating wire 61. The fan 62 blows out hot air to take away the heat generated by the electric heating wire 61, so that a certain temperature is maintained in the heat preservation channel.

[0028] In order to make the surface temperature of the polymer particles evenly distributed, a number of particle turning modules are provided in the upper space, and the particle turning modules include a turning motor 71 provided on the side wall of the heat preservation channel, a rotating rod 72 provided on the output shaft of the turning motor 71, and a number of metal bristles 73 provided on the rotating rod 72, one end of the metal bristle 73 is fixedly connected to the rotating rod 72, and the other end is free, and the length of the metal bristle 73 is greater than the distance from the bottom of the rotating rod 72 to the upper surface of the conveyor belt 43. The rotating rod 72 is parallel to the horizontal plane, and the turning motor 71 drives the rotating rod 72 to rotate, thereby driving the metal bristles 73 to continuously sweep across the upper surface of the conveyor belt 43, thereby continuously turning over the polymer particles on the upper surface of the conveyor belt 43.

[0029] It should be understood by those skilled in the art that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present disclosure (including the claims) is limited to these examples; within the spirit of the invention, the above embodiments or technical features in different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of different aspects of the invention as described above, which are not provided in detail for the sake of simplicity.

[0030] While the invention has been described in conjunction with specific embodiments thereof, many alternatives, modifications and variations of these embodiments will be apparent to those skilled in the art in light of the foregoing description.

[0031] The embodiments of the present invention are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the invention should be included in the scope of protection of the invention.

Claims

1. A polymer particle uniform heating device, characterized in that: The polymer particle uniform heating device comprises a mounting frame (1); A storage tank (2) is arranged on the mounting frame (1), storing polymer particles therein, and having a discharge port provided on the lower side; A hot air blower (3) is arranged on the mounting frame (1) with an air outlet facing upward; A conveyor (4), comprising a driving roller (41), a driven roller (42) and a conveyor belt (43) wrapped around the driving roller (41) and the driven roller (42), the conveyor (4) being arranged on the mounting frame (1) at a position between the hot air blower (3) and the storage tank (2), the conveyor belt (43) being parallel to a horizontal plane, and a plurality of air holes being evenly arranged on the conveyor belt (43), wherein the diameter of the air holes is smaller than the diameter of the polymer particles; A guide air duct is provided between the air outlet of the hot air blower (3) and the lower part of the conveyor belt (43), and an isolation passage is provided between the upper part of the conveyor belt (43) and the discharge port of the storage tank (2); A plurality of grain turning modules are arranged in the upper space, the grain turning modules comprising a turning motor (71) arranged on the side wall of the heat preservation channel, a rotating rod (72) arranged on the output shaft of the turning motor (71), and a plurality of metal bristles (73) arranged on the rotating rod (72), one end of the metal bristle (73) is fixedly connected to the rotating rod (72), and the other end is free, and the length of the metal bristle (73) is greater than the distance from the bottom of the rotating rod (72) to the upper surface of the conveyor belt (43).

2. The polymer particle uniform heating device according to claim 1, characterized in that: The isolation channel is open at both ends, and the lower end is located on the right side and contracts upward. The lower end port of the isolation channel faces the top of the guide air duct.

3. The polymer particle uniform heating device according to claim 2, characterized in that: The uncontracted portion of the lower end of the isolation channel is provided with isolation soft hair, the upper end of the isolation soft hair is fixedly arranged on the isolation channel, and the lower end of the isolation soft hair is in contact with the conveyor belt (43).

4. The polymer particle uniform heating device according to claim 1, characterized in that: A dispersing device is provided in the isolation channel, the dispersing device comprises a plurality of dispersing rods (5), both ends of the dispersing rods (5) are fixedly connected to the inner wall of the isolation channel, the dispersing rods (5) are parallel to the horizontal plane, the dispersing rods (5) are arranged in multiple layers, the plane where the dispersing rods (5) in the same layer are located is parallel to the horizontal plane, the vertical projections of the dispersing rods (5) in adjacent layers do not overlap, and the gaps between adjacent dispersing rods (5) in the same layer are equal.

5. The polymer particle uniform heating device according to claim 1, characterized in that: A heat preservation channel is arranged on the outside of the portion of the conveyor belt (43) located on the right side of the air guide channel.

6. The polymer particle uniform heating device according to claim 5, characterized in that: The heat preservation channel is divided into two upper and lower spaces by the conveyor belt (43); a plurality of supplementary heating modules are provided in the lower space; the supplementary heating modules include an electric heating wire (61) and a fan (62) provided below the electric heating wire (61).

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