PE resin preheating treatment device

Abstract

The utility model discloses a PE (polyethylene) resin preheating treatment device which comprises a preheating box, a plurality of downwards inclined material distributing plates are arranged in the preheating box, gap outlets are reserved between the bottom ends of the material distributing plates and the inner wall of the preheating box, heating cavities are formed in the material distributing plates, and air outlet holes are formed in the bottom surfaces of the material distributing plates; the inclination directions of every two adjacent material distribution plates are opposite; the outer wall of the preheating box is provided with ventilation openings correspondingly communicating with the heating cavities. The preheating box is composed of a plurality of detachable units which are vertically stacked and comprises an upper unit, a plurality of middle units and a lower unit, a feeding port is formed in the upper unit, and a discharging port is formed in the bottom of the lower unit; after entering the preheating box, the PE resin particles can roll on the multiple layers of material distributing plates in a folding mode, make contact with the material distributing plates for preheating and make contact with hot air blown out of the air outlet holes for efficient preheating. The upper unit, the middle unit and the lower unit of the preheating box can be disassembled by disassembling screws on the mounting seats, so that the whole preheating box is convenient to disassemble, convenient to machine and assemble, and meanwhile convenient to clean the interior.

Description

Technical Field

[0001] This utility model belongs to the field of PE pipe processing technology, specifically relating to a PE resin preheating treatment device. Background Technology

[0002] The main raw material of PE pipe is polyethylene, which is a high molecular polymer polymerized from ethylene monomers. Manufacturers first prepare high-quality ethylene raw materials, and through polymerization reaction, convert ethylene monomers into high molecular polymers to form polyethylene granules. Then, the polyethylene granules are crushed and dried to remove moisture and other impurities to ensure the purity of the material. Next, the crushed and dried polyethylene granules are fed into an extruder for pipe extrusion molding.

[0003] The reason why PE resin granules need to be dried during processing is that the PE resin granule raw material has a high moisture content, which will affect the quality of PE pipe extrusion molding during production. To this end, Chinese patent document with authorization announcement number CN 210362041U discloses a raw material preheating device for PE pipe production. It has multiple internal baffles set in the preheating tower. During the falling process, the PE resin granule raw material is blocked by the multiple internal baffles, which can prolong the falling time of the PE resin granule raw material. When the PE resin granule raw material falls, it can fully contact the hot air in the preheating tower, so that the PE resin granule raw material entering the preheating tower is heated evenly.

[0004] However, the above technical solution has the following drawbacks: 1. The preheating tower is fixed with multiple internal partitions, and multiple intermediate flow dividers need to be installed between the internal partitions, making it difficult to assemble and manufacture the whole; 2. The complex internal structure makes it difficult to assemble and disassemble the whole, which also makes internal cleaning inconvenient. Utility Model Content

[0005] This utility model provides a PE resin preheating treatment device. After the PE resin particles enter the preheating box, they will tumble and roll in the multi-layer distribution plate, preheating in contact with the distribution plate and in contact with the hot air blown out of the air outlet for efficient preheating. The upper unit, middle unit and lower unit of the preheating box can be disassembled by removing the screws on the mounting base, so that the whole disassembly is convenient, easy to process and assemble, and easy to clean the inside, thus solving the problems mentioned in the background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: A PE resin preheating treatment device, including preheating box, a plurality of downward inclined distribution plates are equipped in the preheating box, the distribution plate has the clearance outlet at the bottom end and the inner wall of the preheating box, heating cavities are equipped in the distribution plate, a plurality of evenly arranged air outlet holes are equipped along the bottom surface of the distribution plate, the inclination direction of adjacent two distribution plates is opposite, that is, the top end of the lower distribution plate is located below the clearance outlet of the upper distribution plate, the outer wall of the preheating box is equipped with the ventilation opening corresponding to each heating cavity, the preheating box is composed of a plurality of vertically stacked detachable units, including upper unit, a plurality of middle units and lower unit, the upper unit is equipped with the feed inlet, the bottom of the lower unit is funnel-shaped and is equipped with the discharge port.

[0007] Preferably, mounting seats are arranged between adjacent units of the plurality of preheating boxes, and the mounting seats are fixedly connected by screws.

[0008] Preferably, the adjacent units of the plurality of preheating boxes are inserted upwards and downwards, the bottom of the upper unit is provided with an annular protrusion, and the top of the lower unit is provided with a corresponding insertion slot.

[0009] Preferably, the preheating box is provided with a support frame for supporting the distribution plate.

[0010] Preferably, the top surface of the distribution plate is provided with spaced protrusions.

[0011] Preferably, the bottom of the preheating box is provided with a mounting plate, and an exhaust valve is arranged on the top.

[0012] Preferably, the preheating box is provided with a heating cover, a gap space is arranged between the heating cover and the preheating box, and an air inlet pipe is arranged on the heating cover.

[0013] Preferably, the top of the heating cover is provided with an inwardly horizontally extending mounting edge, the preheating box is provided with an upper support plate for supporting the mounting edge, the upper support plate and the mounting edge are fixedly connected by screws, the bottom of the preheating box is provided with a lower support plate for supporting the bottom end of the heating cover, and the lower support plate and the heating cover are fixedly connected by screws.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] 1. After the PE resin particles enter the preheating box, they will be folded and rolled on the multiple distribution plates, preheated by contacting the distribution plates, and contacted with the hot air blown out of the air outlet holes for efficient preheating.

[0016] 2, by disassembling screw, can complete the disassembly of heating cover, by disassembling the screw on the mounting seat can complete the upper unit, middle unit, lower unit of preheating box disassembly, thereby whole disassembly is convenient, convenient processing and assembly, at the same time, convenient internal cleaning. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the front view structure schematic diagram of the utility model;

[0018] Figure 2 It is the middle unit section structure schematic diagram of the utility model;

[0019] Figure 3 It is the upper unit section structure schematic diagram of the utility model;

[0020] Figure 4 It is the lower unit section structure schematic diagram of the utility model;

[0021] Figure 5 It is the heating cover plan view structure schematic diagram of the utility model.

[0022] In the drawing: 1, preheating box; 2, distribution plate; 3, gap outlet; 4, heating cavity; 5, air outlet; 6, ventilation opening; 7, upper unit; 8, middle unit; 9, lower unit; 10, feed inlet; 11, discharge outlet; 12, mounting seat; 13, annular protrusion; 14, slot; 15, support frame; 16, protruding strip; 17, mounting plate; 18, exhaust valve; 19, heating cover; 20, gap space; 21, air inlet pipe; 22, mounting edge; 23, upper support plate; 24, lower support plate. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0024] Please refer to Figures 1-5The utility model provides a kind of PE resin preheating device, including preheating box 1, multiple downwardly inclined distribution plate 2 are equipped in the preheating box 1, the gap outlet 3 is left in bottom end of the distribution plate 2 with the inner wall of the preheating box 1, heating cavity 4 is equipped in the distribution plate 2, the distribution plate 2 is equipped with multiple evenly distributed air outlet 5 along bottom surface;Two adjacent the distribution plate 2 opposite inclination direction, i. e. the top end of lower distribution plate 2 is located below the gap outlet 3 of upper distribution plate 2;The outer wall of the preheating box 1 is equipped with the vent 6 of corresponding intercommunication each heating cavity 4;The preheating box 1 is made of multiple detachable units of vertical stacking, including upper unit 7, multiple middle units 8 and lower unit 9, the upper unit 7 is equipped with feed inlet 10, the bottom of lower unit 9 is funnel-shaped and is equipped with discharge port 11;When working, the PE resin particles to be preheated are added through feed inlet 10, after particle addition, it will enter the top of distribution plate 2 downwards, since distribution plate 2 is inclinedly arranged, the falling particles will then roll down along distribution plate 2, hot air enters the heating cavity 4 of each distribution plate 2 through multiple vents 6, then distribution plate 2 is heated, then the particles in contact with distribution plate 2 will be preheated, simultaneously, after hot air enters heating cavity 4, it will be blown out downwards through air outlet 5, since the inclination direction of two adjacent distribution plate 2 is opposite, the top end of lower distribution plate 2 is located below the gap outlet 3 of upper distribution plate 2, so that particles will be folded and tumbled in multiple distribution plate 2, and contact with hot air blown out by air outlet 5, and be preheated efficiently.

[0025] Specifically, mounting seat 12 is equipped between multiple adjacent units of the preheating box 1, and is fixedly connected by screw between the mounting seat 12.

[0026] Specifically, the upper unit bottom of the upper unit is equipped with annular protrusion 13, and the lower unit top is equipped with corresponding slot 14.

[0027] Specifically, the preheating box 1 is equipped with support frame 15 for supporting the distribution plate 2.

[0028] Specifically, the top surface of the distribution plate 2 is equipped with spaced protruding strips 16.

[0029] Specifically, the bottom of the plurality of preheating boxes 1 is provided with a mounting plate 17, and the top is provided with an exhaust valve 18; in this embodiment, the external equipment is connected through the mounting plate 17, and the exhaust valve 18 is arranged to balance the air pressure inside and outside the preheating box 1.

[0030] Specifically, the preheating box 1 is provided with a heating cover 19, and a gap space 20 is arranged between the preheating box 1 and the heating cover 19, and the heating cover 19 is provided with an air inlet pipe 21; in this embodiment, the external hot air supply equipment is connected through the air inlet pipe 21, and after the hot air enters the gap space 20 of the heating cover 19, it enters the heating cavity 4 of each distribution plate 2 through the plurality of air vents 6.

[0031] Specifically, the top of the heating cover 19 is provided with an inwardly horizontally extending mounting edge 22, the preheating box 1 is provided with an upper support plate 23 for supporting the mounting edge 22, the upper support plate 23 and the mounting edge 22 are fixed by screws, and the bottom of the preheating box 1 is provided with a lower support plate 24 for supporting the bottom end of the heating cover 19, and the lower support plate 24 and the heating cover 19 are fixed by screws; in this embodiment, the upper support plate 23 and the lower support plate 24 cooperate with the screws to achieve the fixed support of the heating cover 19, and the heating cover 19 can be conveniently assembled and disassembled by disassembling the screws.

[0032] In order to facilitate the understanding of the above technical scheme of the utility model, the working principle or operation mode of the utility model in the actual process will be described in detail.

[0033] Working principle: during work, the PE resin particles to be preheated are added through the feeding port 10, and after the particles are added, they will enter the upper part of the distribution plate 2 downwardly, due to the inclined arrangement of the distribution plate 2, the falling particles will roll downwardly along the distribution plate 2, and under the blocking action of the protruding strip 16, the particles will be tumbled, during which the external hot air supply equipment is connected through the air inlet pipe 21, and after the hot air enters the gap space 20 of the heating cover 19, it will enter the heating cavity 4 of each distribution plate 2 through the plurality of air vents 6, and then the distribution plate 2 is heated, and the particles in contact with the distribution plate 2 will be preheated, and after the hot air enters the heating cavity 4, it will be blown downwardly through the air outlet hole 5, due to the opposite inclined directions of the adjacent two distribution plates 2, the top end of the lower distribution plate 2 is located below the gap outlet 3 of the upper distribution plate 2, so that the particles will be folded and tumbled in multiple layers of distribution plates 2, and will be in contact with the hot air blown out of the air outlet hole 5, and will be preheated efficiently; the heating cover 19 can be disassembled by disassembling the screws, and the upper unit 7, the middle unit 8 and the lower unit 9 of the preheating box 1 can be disassembled by disassembling the screws on the mounting seat 12, so that the whole is conveniently disassembled, and is convenient for processing and assembly, and is convenient for internal cleaning.

[0034] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A PE resin preheating device comprising a preheating tank (1), characterized in that, The preheating box (1) is provided with multiple downward inclined distribution plates (2), the bottom end of the distribution plate (2) is provided with a gap outlet (3) relative to the inner wall of the preheating box (1), the distribution plate (2) is provided with a heating cavity (4), and the bottom surface of the distribution plate (2) is provided with multiple uniformly distributed air outlets (5); the inclined directions of the adjacent two distribution plates (2) are opposite, that is, the top end of the lower distribution plate (2) is located below the gap outlet (3) of the upper distribution plate (2); the outer wall of the preheating box (1) is provided with a ventilation port (6) corresponding to each heating cavity (4); the preheating box (1) is composed of multiple vertically stacked detachable units, including an upper unit (7), multiple middle units (8) and a lower unit (9), the upper unit (7) is provided with a feeding port (10), and the bottom of the lower unit (9) is funnel-shaped and provided with a discharging port (11).

2. The PE resin pre-treatment device according to claim 1, characterized in that, Multiple preheating boxes (1) are provided with mounting seats (12) between adjacent units, and are fixedly connected by screws corresponding to the mounting seats (12).

3. The PE resin pre-treatment device according to claim 1, characterized in that, Multiple preheating boxes (1) are inserted between adjacent units, the bottom of the upper unit is provided with an annular protrusion (13), and the top of the lower unit is provided with a corresponding insertion slot (14).

4. The PE resin pre-treatment device according to claim 1, characterized in that, The preheating box (1) is provided with a support frame (15) for supporting the distribution plate (2).

5. The PE resin pre-treatment device according to claim 1, characterized in that, The top surface of the distribution plate (2) is provided with spaced protruding strips (16).

6. The PE resin pre-treatment device according to claim 1, characterized in that, Multiple preheating boxes (1) are provided with mounting plates (17) at the bottom and exhaust valves (18) at the top.

7. The PE resin pre-treatment device according to claim 1, characterized in that, The preheating box (1) is provided with a heating cover (19), a gap space (20) is formed between the heating cover (19) and the preheating box (1), and the heating cover (19) is provided with an air inlet pipe (21).

8. The PE resin pre-treatment device according to claim 7, characterized in that, The top of the heating cover (19) is provided with an inwardly horizontally extending mounting edge (22), the preheating box (1) is provided with an upper support plate (23) for supporting the mounting edge (22), the upper support plate (23) and the mounting edge (22) are fixedly connected by screws, and the bottom of the preheating box (1) is provided with a lower support plate (24) for supporting the bottom end of the heating cover (19), and the lower support plate (24) and the heating cover (19) are fixedly connected by screws.

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