Low-loss heat energy recovery energy-saving structure and drying machine thereof

Abstract

The low-loss heat energy recovery energy-saving structure comprises a barrel body, a barrel cover is installed at the top of the barrel body, a conical hopper is fixedly installed at the bottom of the barrel cover, and hot air is conveyed into the conical hopper through an air inlet pipe and a bent pipe by a fan to be used for drying plastic particles. Meanwhile, the plastic particles above the bearing plate are blown, dust on the plastic particles is blown, gas containing the dust enters a dust removal filter element through a gas outlet pipe, the gas is cleaned, the plastic particles can be cleaned, and the follow-up injection molding quality is prevented from being affected; hot air coming out of the dust removal filter element enters the air groove through the air return pipe to heat the inner wall of the barrel body, meanwhile, the hot air coming out of the dust removal filter element enters the bottom end of the barrel body through the air blowing pipe, and the hot air can further heat and dry washed-down plastic particles. The drying effect on plastic particles is improved, and meanwhile the recycling rate of heat energy is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to drying machine technical field, concretely to a kind of low-loss heat energy recovery energy-saving structure and drying machine thereof. BACKGROUND

[0002] When using injection molding machine, thermoplastic or thermosetting plastic is made into various shapes by plastic forming mold, and before pouring plastic particles into injection molding machine, drying machine is used to dry plastic particles.

[0003] In prior art, due to different storage environments of plastic particles, plastic particles contain certain dust, when plastic particles containing dust are added into injection molding machine, the quality of injection molding products is not high, which affects production effect, and when hot air is added to dry plastic particles in existing drying machine, hot air is also discharged, and the use efficiency of heat energy is reduced. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of low-loss heat energy recovery energy-saving structure and drying machine thereof to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of low-loss heat energy recovery energy-saving structure includes barrel, the top of the barrel is equipped with barrel cover, the bottom of the barrel cover is fixedly installed with hopper, the bottom end of the hopper is fixedly installed with heating assembly, the inside of the barrel is provided with air groove, the top of the barrel is fixedly installed with heat energy recovery device for recovering heat.

[0006] As further preferred of the technical scheme, the barrel and the hopper are installed with screen for filtering plastic particles.

[0007] As further preferred of the technical scheme, the heating assembly includes air inlet pipe, elbow pipe, heating pipe and fan, the bottom of the barrel cover is fixedly installed with air inlet pipe, the end of the air inlet pipe is fixedly installed with elbow pipe, the top end inside of the elbow pipe is fixedly installed with heating pipe, and the top end of the elbow pipe is fixedly installed with fan.

[0008] As further preferred of the technical scheme, the bottom end inner wall of the barrel is fixedly installed with bearing plate, the middle part of the bearing plate is provided with first perforation in annular array mode with the central axis of bearing plate, the top of the barrel cover is fixedly installed with motor, the output end of motor is fixedly installed with blanking plate through barrel, and the middle part of blanking plate is provided with second perforation in annular array mode with the central axis of blanking plate.

[0009] As a further preferred technical solution, the heat energy recovery device comprises an air outlet pipe, a dust removal filter element, a gas return pipe and an exhaust pipe, the top of the barrel body is fixedly provided with the air outlet pipe, the end of the air outlet pipe is fixedly provided with the dust removal filter element, the bottom end of the dust removal filter element is fixedly provided with the gas return pipe, the gas return pipe is in communication with the inside of the gas groove, the top end of the barrel body is fixedly provided with the exhaust pipe outside, and the exhaust pipe is in communication with the inside of the gas groove.

[0010] As a further preferred technical solution, the middle part of the gas return pipe is fixedly provided with a blowing pipe, one end of the blowing pipe away from the gas return pipe is in communication with the inside of the barrel body, and the one end of the blowing pipe away from the gas return pipe is arranged below the bearing plate.

[0011] As a further preferred technical solution, the present application also comprises a dryer comprising the above-mentioned low-loss heat energy recovery energy-saving structure and a feeding hole provided in the inside of the barrel cover.

[0012] The present application provides a low-loss heat energy recovery energy-saving structure and a dryer thereof, which has the following advantages:

[0013] (1) The vacuum material suction machine is used for conveying the plastic particles to the inside of the barrel body through the feeding hole, the plastic particles are arranged above the bearing plate, the air is heated by the heating pipe, the hot air is conveyed to the inside of the conical hopper through the air inlet pipe and the elbow pipe by the fan, the hot air rises to the inside of the barrel body through the first perforation and the gap between the bearing plate and the blocking plate, is used for drying the plastic particles, and blows the plastic particles above the bearing plate, is used for blowing the dust on the plastic particles, the gas containing the dust enters the dust removal filter element through the air outlet pipe, the dust removal filter element filters the dust-containing gas, is used for cleaning the gas, can clean the plastic particles, and prevents the influence on subsequent injection molding quality.

[0014] (2) The hot air from the dust removal filter element enters the inside of the gas groove through the gas return pipe, is used for heating the inner wall of the barrel body, can further heat and dry the plastic particles in the inside of the barrel body, improves the drying effect of the plastic particles, and improves the recycling rate of the heat energy. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the utility model.

[0016] Figure 2 It is the whole cross-section explosion structure schematic view one of the utility model;

[0017] Figure 3 It is the whole cross-section explosion structure schematic view two of the utility model;

[0018] Figure 4 It is Figure 3 The enlarged view of A in the middle;

[0019] Figure 5 It is the local explosion structure schematic view of the utility model.

[0020] In the figure: 1, barrel body;2, barrel cover;3, cone bucket;4, gas groove;5, screen;6, air inlet pipe;7, elbow;8, heating pipe;9, fan;10, bearing plate;11, first perforation;12, motor;13, baffle;14, second perforation;15, air outlet pipe;16, dust removal filter element;17, gas backflow pipe;18, exhaust pipe;19, air blowing pipe;20, feed hole. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model.

[0022] The utility model provides technical schemes: as Figures 1 to 5 The utility model discloses a low-loss heat energy recovery energy-saving structure, which comprises a barrel body 1, a barrel cover 2 is rotatably installed at the top of the barrel body 1 through a hinge, the barrel body 1 and the barrel cover 2 are fixedly connected through a handle buckle, a cone bucket 3 is fixedly installed at the bottom of the barrel cover 2 through bolts, the bottom of the cone bucket 3 is connected with an injection molding machine feed inlet, a heating assembly is fixedly installed at the bottom end of the cone bucket 3, a gas groove 4 is arranged in the barrel body 1, a heat energy recovery device for recovering heat is fixedly installed at the top of the barrel body 1, plastic particles are conveyed into the barrel body 1, hot gas is conveyed into the cone bucket 3 through the heating assembly, is used for drying the plastic particles, at the same time, the hot gas blows the dust on the plastic particles, the dust-containing gas is cleaned through the heat energy recovery device, and the treated hot gas enters the inside of the gas groove 4, is used for heating the inner wall of the barrel body 1, can further heat and dry the plastic particles in the barrel body 1, improves the drying effect of the plastic particles, and improves the recycling rate of heat energy.

[0023] As Figures 1 to 5 The barrel body 1 and the cone bucket 3 are provided with a screen 5 for filtering the plastic particles.

[0024] The large particle material can be filtered through the screen 5 to prevent the larger material from entering the injection molding machine and being completely melted, affecting the injection quality of the injection molding part.

[0025] As shown in Figures 1 to 5 , the heating assembly includes an air inlet pipe 6, an elbow pipe 7, a heating pipe 8 and a fan 9, the bottom of the bucket cover 2 is fixedly installed with the air inlet pipe 6, the end of the air inlet pipe 6 is fixedly installed with the elbow pipe 7 through the flange, the top end of the elbow pipe 7 is fixedly installed with the heating pipe 8 inside through the flange, and the top end of the elbow pipe 7 is fixedly installed with the fan 9 through the flange.

[0026] The air is heated by the heating pipe 8, and the hot air is delivered to the inside of the cone 3 through the air inlet pipe 6 and the elbow pipe 7 by the fan 9.

[0027] As shown in Figures 1 to 5 , the bottom inner wall of the barrel body 1 is fixedly installed with a bearing plate 10, the middle part of the bearing plate 10 is arranged in an annular array with first perforations 11 along the central axis of the bearing plate 10, the top of the bucket cover 2 is fixedly installed with a motor 12, the output end of the motor 12 is fixedly installed with a blanking plate 13 through the barrel body 1, and the middle part of the blanking plate 13 is arranged in an annular array with second perforations 14 along the central axis of the blanking plate 13.

[0028] The blanking plate 13 is driven to rotate by the motor 12, and when the first perforations 11 on the bearing plate 10 coincide with the second perforations 14 on the blanking plate 13, the plastic particles will fall into the inside of the cone 3 for gradual feeding of the plastic particles.

[0029] As shown in Figures 1 to 5 , the heat energy recovery device includes an air outlet pipe 15, a dust removal filter element 16, a gas backflow pipe 17 and an exhaust pipe 18, the top of the barrel body 1 is fixedly installed with the air outlet pipe 15 through the flange, the end of the air outlet pipe 15 is fixedly installed with the dust removal filter element 16, the air outlet pipe 15 and the dust removal filter element 16 are communicated, the bottom end of the dust removal filter element 16 is fixedly installed with the gas backflow pipe 17, the gas backflow pipe 17 and the dust removal filter element 16 are communicated, the gas backflow pipe 17 and the inside of the gas tank 4 are communicated, and the top outside of the barrel body 1 is fixedly installed with the exhaust pipe 18, which is communicated with the inside of the gas tank 4.

[0030] The gas containing dust will enter the dust removal filter element 16 through the air outlet pipe 15, the dust removal filter element 16 will filter the dust-containing gas for cleaning of the gas, the cleaned gas contains a certain amount of hot gas, the hot gas from the dust removal filter element 16 will enter the inside of the gas tank 4 through the gas backflow pipe 17 for heating of the inner wall of the barrel body 1, which can further heat and dry the plastic particles in the barrel body 1, improve the drying effect of the plastic particles, and improve the recycling rate of the heat energy.

[0031] AsFigures 1 to 5 As shown, an air blowing pipe 19 is fixedly installed in the middle of the gas return pipe 17. The end of the air blowing pipe 19 away from the gas return pipe 17 is connected to the inside of the barrel 1, and the end of the air blowing pipe 19 away from the gas return pipe 17 is located below the support plate 10.

[0032] The plastic granules will fall into the cone hopper 3. At the same time, the hot air from the dust filter element 16 will enter the bottom of the barrel 1 through the air blowing pipe 19. The hot air can further heat and dry the falling plastic granules, improve the drying effect of the plastic granules, and improve the heat energy recovery rate.

[0033] like Figures 1 to 5 As shown, this solution also includes a dryer, which includes the low-loss heat recovery energy-saving structure described above and a feed hole 20. The feed hole 20 is opened inside the barrel cover 2 and is connected to a vacuum feeder.

[0034] It can automatically feed plastic granules, improving feeding efficiency.

[0035] This utility model provides a low-loss heat energy recovery and energy-saving structure and its dryer, the specific working principle of which is as follows:

[0036] In operation, the device uses a vacuum feeder to transport plastic granules through the feed hole 20 into the barrel 1. The granules are placed above the support plate 10. Air is heated by the heating pipe 8, and the hot air is then transported to the conical hopper 3 through the air inlet pipe 6 and the bend pipe 7 by the fan 9. The hot air rises into the barrel 1 through the first perforation 11 and the gap between the support plate 10 and the blocking plate 13, drying the plastic granules. Simultaneously, the air blows the plastic granules above the support plate 10, removing dust. The dust-laden gas enters the dust collector filter 16 through the air outlet pipe 15, cleaning the gas. The cleaned gas contains a certain amount of heat, which exits the dust collector filter 16 and enters the air tank 4 through the gas return pipe 17, cleaning the inner wall of the barrel 1. Heating further dries the plastic granules inside the barrel 1, improving the drying effect and increasing the heat recovery rate. After the plastic granules inside the barrel 1 have been heated and dried for a period of time, the motor 12 drives the blocking plate 13 to rotate. When the first perforation 11 on the bearing plate 10 coincides with the second perforation 14 on the blocking plate 13, the plastic granules will fall into the cone hopper 3. At the same time, the hot air from the dust filter element 16 will enter the bottom of the barrel 1 through the air blowing pipe 19. The hot air can further heat and dry the falling plastic granules, improving the drying effect and increasing the heat recovery rate. The screen 5 can filter large particles to prevent larger materials from entering the injection molding machine and failing to melt completely, thus affecting the injection molding quality of the injection molded parts.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 appended claims and their equivalents.

Claims

1. A low-loss heat recovery and energy-saving structure, characterized in that: The container includes a barrel body (1), a barrel cover (2) installed on the top of the barrel body (1), a cone hopper (3) fixedly installed at the bottom of the barrel cover (2), a heating component fixedly installed at the bottom end of the cone hopper (3), an air groove (4) opened inside the barrel body (1), and a heat recovery device for recovering heat fixedly installed on the top of the barrel body (1); the heating component includes an air inlet pipe (6), a bend pipe (7), a heating pipe (8), and a fan (9); an air inlet pipe (6) is fixedly installed at the bottom of the barrel cover (2), a bend pipe (7) is fixedly installed at the end of the air inlet pipe (6), a heating pipe (8) is fixedly installed inside the top end of the bend pipe (7), and a fan (9) is fixedly installed at the top end of the bend pipe (7); a bearing plate (10) is fixedly installed on the inner wall of the bottom end of the barrel body (1), and the middle part of the bearing plate (10) is oriented around the central axis of the bearing plate (10). The first perforation (11) is arranged in a ring array. A motor (12) is fixedly installed on the top of the barrel cover (2). The output end of the motor (12) passes through the barrel body (1) and a blocking plate (13) is fixedly installed. A second perforation (14) is arranged in a ring array with the central axis of the blocking plate (13) in the middle. The heat recovery device includes an air outlet pipe (15), a dust removal filter element (16), a gas return pipe (17), and an exhaust pipe (18). An air outlet pipe (15) is fixedly installed on the top of the barrel body (1). A dust removal filter element (16) is fixedly installed at the end of the air outlet pipe (15). A gas return pipe (17) is fixedly installed at the bottom end of the dust removal filter element (16). The gas return pipe (17) is connected to the inside of the gas tank (4). An exhaust pipe (18) is fixedly installed on the outside of the top of the barrel body (1). The exhaust pipe (18) is connected to the inside of the gas tank (4).

2. The low-loss heat recovery energy-saving structure according to claim 1, characterized in that: A screen (5) for filtering plastic particles is installed between the barrel (1) and the cone (3).

3. The low-loss heat recovery energy-saving structure according to claim 1, characterized in that: A blowing pipe (19) is fixedly installed in the middle of the gas return pipe (17). The end of the blowing pipe (19) away from the gas return pipe (17) is connected to the inside of the barrel (1). The end of the blowing pipe (19) away from the gas return pipe (17) is located below the support plate (10).

4. A dryer, characterized in that: The invention includes a low-loss heat recovery energy-saving structure according to any one of claims 1-3 and a feed hole (20) which is opened inside the barrel cover (2).

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