Heating device for plastic particle production

Abstract

The utility model discloses a heating device for plastic particle production, which relates to the technical field of plastic particle production and comprises an extruder, a heating device main body is fixedly mounted on the outer side of the extruder, heat-conducting fins are fixedly mounted on the outer side of the heating device main body, and a heat-insulating shell is wrapped on the outer side of the heat-conducting fins. And an exhaust pipe is fixedly installed on one side of the heat preservation shell, a filter screen is fixedly installed in the exhaust pipe, a supporting groove is fixedly formed in the left side of the top of the extruding machine, and four air outlet grooves are fixedly formed in the periphery of the interior of the supporting groove. According to the heating device for plastic particle production, through operation of an air suction pump, air at the position of an extrusion opening can be sucked in through an air suction pipe, the air is filtered through a filter screen in the air suction pipe, and heat dissipated from the surface of the heating device can be better conducted through heat conduction fins on the outer side of the heating device; and air passes through the heat conducting fins to be quickly heated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plastic particle production, and specifically relates to a heating device for plastic particle production. BACKGROUND

[0002] Plastic particles refer to granular plastics, which are generally divided into more than 200 types and subdivided into thousands of types. Common plastic particles include general-purpose plastics, engineering plastics, and special plastics. Plastic particles are semi-finished products of plastic forming processing industry and are raw materials for forming processing and production such as extrusion, injection molding, hollow blow molding, and foaming. Plastic particle granulation will use extruder equipment, and high polymer resin or recycled plastic products are cut and conveyed into the extruder and melted into a flow state in the extruder.

[0003] The existing reference announcement number CN213006478U discloses an energy-saving and environment-friendly heating device for plastic particle production, which comprises a workbench, a support is welded on the right side of the upper surface of the workbench, an extruder is welded and supported on the upper side of the support, a hopper is welded on the upper surface of the left side of the extruder, a motor is fixedly connected to the left end of the extruder, a spiral heating pipe a is wound around the body of the extruder, an air duct is provided above the spiral heating pipe a, the air inlet of the air duct is welded with the outlet of the spiral heating pipe a, one end of the air outlet of the air duct is welded with the air duct a, the other end of the air duct a extends to the left and is welded with the inlet of the spiral heating pipe b wound on the surface of the hopper, one end of the outlet of the spiral heating pipe b is welded with the air duct b, the other end of the air duct b extends to the left and extends into the water tank welded on the left side of the upper surface of the workbench and extends below the water surface. The utility model can preheat the hopper with the waste heat of the heating section of the extruder, achieve energy-saving effect, effectively eliminate the odor generated during the granulation of the extruder, and achieve environmental protection effect.

[0004] The above-mentioned energy-saving and environment-friendly heating device for plastic particle production, by the unique design of the spiral heating pipe a, can effectively utilize the waste heat of the heating section of the extruder. This design enables the cool air introduced by the air duct to be heated into hot air, thereby solving the problem of neglecting waste heat and causing heat loss. However, in actual application, the effect of heating air by winding the pipe for heat conduction is not as ideal as expected. Specifically, the temperature rise speed is relatively slow, and the heat conduction efficiency is not high, which directly leads to poor temperature conduction effect. In addition, the waste heat recovery effect of the inlet by winding the pipe is also not satisfactory, which affects the energy utilization efficiency of the entire production process to some extent. UTILITY MODEL CONTENTS

[0005] The utility model aims to overcome the problems of insufficient energy-saving effect and poor waste heat effect in the prior art, and provides a heating device for plastic particle production.

[0006] In order to achieve the above object, the utility model provides the following technical scheme:

[0007] A heating device for plastic particle production, comprising:

[0008] The extruder is fixedly installed with a heating device main body on the outside, the heating device main body is fixedly installed with heat conduction fins on the outside, the heat conduction fins are wrapped with a heat preservation shell on the outside, one side of the heat preservation shell is fixedly installed with an air extraction pipe, the air extraction pipe is fixedly installed with a filter screen in the inside, the top left side of the extruder is fixedly provided with a support groove, four air outlet grooves are fixedly arranged around the inside of the support groove, a support net is fixedly installed on the inside of one side of the air outlet groove, an air outlet pipe is fixedly installed on one side of the air outlet groove, and an air extraction pump is fixedly installed on one side of the air outlet pipe.

[0009] In a preferred embodiment, the top side of the extruder is fixedly installed with a feeding port, and the two sides of the extruder are fixedly installed with two support frames.

[0010] In a preferred embodiment, the bottom of the support frame is fixedly installed with a bottom plate, which is a structure for supporting the bottom.

[0011] In a preferred embodiment, the top of the support groove is fixedly installed with a feeding hopper, and the top of the feeding hopper is fixedly installed with a feeding box, which is a structure for feeding.

[0012] In a preferred embodiment, the top of the feeding box is fixedly provided with an air extraction groove, and four interception nets are fixedly installed around the inside of the air extraction groove, which is a structure for interception.

[0013] In a preferred embodiment, the air extraction groove is fixedly installed with a connecting pipe on the outside, and the connecting pipe is fixedly installed with an extraction pump at the bottom, which is a structure for extraction.

[0014] In a preferred embodiment, the extraction pump is fixedly installed with a conveying pipe on one side, and the conveying pipe is fixedly installed with a purification device at the bottom, which is a structure for filtering gas.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] The plastic particle production heating device, through the continuous operation of the air extraction pump, can effectively extract the gas at the extrusion outlet position through the air extraction pipe, in the process of being extracted into, the gas will pass through the filter screen specially arranged in the air extraction pipe, the filter screen can finely filter the gas to ensure the purity of the gas, then the gas will contact the heat conduction fins outside the heating device, the heat conduction fins can enhance the heat conduction efficiency of the heat emitted from the surface of the heating device, the air passing through the heat conduction fins will be rapidly heated, then enters the inside of the air outlet pipe again through the action of the air extraction pump, in the air outlet pipe, the hot air will be evenly distributed to the inside of the support groove through the designed four air outlet grooves, finally, the hot air will be blown from the bottom of the support groove to sufficiently waste heat treat the plastic particles in the feeding box and the air extraction groove, the design significantly improves the energy-saving waste heat effect of the plastic particle production heating device, so that the whole production process is more efficient and environmentally friendly. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole structure schematic view in the utility model;

[0018] Figure 2 It is an extruder schematic view in the utility model;

[0019] Figure 3 It is a support groove schematic view in the utility model;

[0020] Figure 4 It is an air extraction groove schematic view in the utility model.

[0021] 1, extruder; 11, feeding port; 12, support frame; 13, bottom plate; 14, heating device main body; 15, heat conduction fin; 16, heat preservation shell; 17, air extraction pipe; 18, filter screen; 2, support groove; 21, air outlet groove; 22, support net; 23, air outlet pipe; 24, air extraction pump; 25, feeding hopper; 26, feeding box; 3, air extraction groove; 31, intercepting net; 32, connecting pipe; 33, extraction pump; 34, conveying pipe; 35, purification device. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be clearly and completely described below in combination 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 those skilled in the art without creative labor belong to the protection scope of the utility model.

[0023] In combination with the drawings in the embodiments of the utility model, Figures 1-4In this embodiment, a heating device for plastic particle production includes an extruder 1, a heating device body 14 fixedly installed on the outside of the extruder 1, heat-conducting fins 15 fixedly installed on the outside of the heating device body 14, a heat preservation shell 16 wrapped on the outside of the heat-conducting fins 15, an air extraction pipe 17 fixedly installed on one side of the heat preservation shell 16, a filter screen 18 fixedly installed in the air extraction pipe 17, a feeding port 11 fixedly installed on one side of the top of the extruder 1, two support frames 12 fixedly installed on both sides of the outside of the extruder 1, and a bottom plate 13 fixedly installed on the bottom of the support frame 12.

[0024] Specifically, the inside of the extruder 1 is heated by the operation of the heating device body 14, the outside of the outside is heat-conducted by the heat-conducting fins 15, so that the gas is quickly heated, the heating device for plastic particle production extracts the position of the extrusion port through the air extraction pipe 17, and filters the entering gas through the filter screen 18.

[0025] A support groove 2 is fixedly arranged on the top left side of the extruder 1, four air outlet grooves 21 are fixedly arranged around the inside of the support groove 2, a support screen 22 is fixedly installed on one side of the inside of the air outlet groove 21, an air outlet pipe 23 is fixedly installed on one side of the air outlet groove 21, an air extraction pump 24 is fixedly installed on one side of the air outlet pipe 23, a feeding hopper 25 is fixedly installed on the top of the support groove 2, and a feeding box 26 is fixedly installed on the top of the feeding hopper 25.

[0026] Specifically, the heated gas is sent into the inside of the air outlet pipe 23 by the operation of the air extraction pump 24, the gas is sent into the inside of the air outlet groove 21 through the air outlet pipe 23, the gas is blown into the bottom of the plastic through the air outlet groove 21, so that the plastic is fully preheated, and the plastic is intercepted through the support screen 22, so that the problem of plastic entering is avoided.

[0027] An air extraction groove 3 is fixedly arranged on the top of the feeding box 26, four interception screens 31 are fixedly installed around the inside of the air extraction groove 3, a connecting pipe 32 is fixedly installed on the outside of the air extraction groove 3, an extraction pump 33 is fixedly installed on the bottom of the connecting pipe 32, a conveying pipe 34 is fixedly installed on one side of the extraction pump 33, and a purification device 35 is fixedly installed on the bottom of the conveying pipe 34.

[0028] Specifically, by extracting the pump 33, thereby making the suction groove 3 produce suction through the connecting pipe 32, thereby sucking the top of the feed tank 26, intercepting and filtering through the intercepting net 31, and sending the gas into the inside of the purification device 35 through the conveying pipe 34, the gas is filtered. The purification device 35 usually sucks the gas to be purified into the device through the internal motor and fan system, which is similar to the working principle of the pump, providing power and basis for the subsequent purification step. The sucked gas will then pass through multiple layers of filter screens inside the device, which can intercept various impurities in the gas, including large particles of dust, hair, and tiny particles such as PM2.5, etc. It is also equipped with activated carbon filter screen for adsorbing harmful gases and odors such as formaldehyde, benzene, etc. by using materials with large surface area and porosity (such as activated carbon, silica gel, alumina and molecular sieve, etc.) as adsorbent to adsorb harmful substances in the gas.

[0029] Working principle: First, the extruder 1 is supported by the two support frames 12, the bottom of the heating device for plastic particle production is supported by the bottom plate 13, the inside of the extruder 1 is heated by the heating device main body 14, the waste heat outside the heating device main body 14 is conducted by the heat conducting fins 15, the outside is wrapped by the heat preservation shell 16, thereby avoiding heat loss, the heat preservation shell 16 top side suction pump 24 is operated, thereby making the suction pipe 17 produce suction, the position of the extrusion port is sucked, the peculiar smell and harmful gas generated by high temperature is sucked in, the impurities are filtered by the filter screen 18 inside the suction pipe 17, after the gas enters the inside of the heat preservation shell 16, the gas is quickly heated by the heat conducting fins 15, then the gas is quickly heated by the suction pump 24, thereby avoiding the problem of low heat exchange efficiency of the winding type, the high temperature gas is sent into the inside of the gas outlet groove 21 by the outlet pipe 23 through the suction pump 24, the gas is blown from the bottom of the feed hopper 25 by the gas outlet groove 21, thereby fully preheating the plastic, improving the preheating effect of the heating device for plastic particle production, so as to fully preheat the plastic particles, the plastic particles are intercepted by the support net 22 inside the gas outlet groove 21, thereby avoiding the problem of blockage caused by the plastic particles entering the inside of the gas outlet groove 21, the harmful gas discharged from the inside of the feed tank 26 is sucked in by the operation of the extraction pump 33, the impurities are intercepted and filtered by the intercepting net 31 inside the suction groove 3, the gas sucked by the extraction pump 33 is sent into the inside of the purification device 35 through the conveying pipe 34, thereby filtering and purifying the harmful gas, avoiding the problem of air pollution.

[0030] Although the utility model has been explained in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A heating device for producing plastic granules, characterized in that, The heating device for producing plastic granules includes an extruder (1), a heating device body (14) is fixedly installed on the outside of the extruder (1), heat-conducting fins (15) are fixedly installed on the outside of the heating device body (14), an insulation shell (16) is wrapped around the outside of the heat-conducting fins (15), an exhaust pipe (17) is fixedly installed on one side of the insulation shell (16), a filter screen (18) is fixedly installed inside the exhaust pipe (17), a support groove (2) is fixedly installed on the top left side of the extruder (1), four air outlet grooves (21) are fixedly installed around the inside of the support groove (2), a support net (22) is fixedly installed on one side of the inside of the air outlet groove (21), an exhaust pipe (23) is fixedly installed on one side of the exhaust groove (21), and an exhaust pump (24) is fixedly installed on one side of the exhaust pipe (23).

2. The heating device for producing plastic granules according to claim 1, characterized in that: A feed inlet (11) is fixedly installed on one side of the top of the extruder (1), and two support frames (12) are fixedly installed on both sides of the outer side of the extruder (1).

3. The heating device for producing plastic granules according to claim 2, characterized in that: The bottom of the support frame (12) is fixedly installed with a base plate (13).

4. The heating device for producing plastic granules according to claim 1, characterized in that: A feed hopper (25) is fixedly installed on the top of the support groove (2), and a feed box (26) is fixedly installed on the top of the feed hopper (25).

5. A heating device for producing plastic granules according to claim 4, characterized in that: The top of the feed box (26) is fixedly provided with an air extraction groove (3), and four intercepting nets (31) are fixedly installed around the inside of the air extraction groove (3).

6. The heating device for producing plastic granules according to claim 5, characterized in that: A connecting pipe (32) is fixedly installed on the outside of the air extraction groove (3), and a pump (33) is fixedly installed at the bottom of the connecting pipe (32).

7. A heating device for producing plastic granules according to claim 6, characterized in that: A delivery pipe (34) is fixedly installed on one side of the extraction pump (33), and a purification device (35) is fixedly installed at the bottom of the delivery pipe (34).

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