CN204487875U - A kind of vertical hot blast melting waste plastic recovery pelletizer - Google Patents

Abstract

A vertical hot air melting waste plastic recycling granulator, which consists of a hopper, a flange, a box cover, a hot air circulation box, a melting chamber, a stirring mechanism, a stirring and conveying mechanism, a conical hopper, a screw, a barrel, a granulating mechanism, Chain transmission mechanism, frame and other components. The material enters the melting chamber through the hopper, and the hot air circulation box sends the hot air to the melting chamber to heat and melt the material, and stirs the material through the stirring mechanism to fully melt the material; the molten material falls into the barrel from the conical hopper, and the material passes through the die through the screw After being extruded into strips, the granulation is completed by the granulation mechanism; the granulator uses hot air to directly melt waste plastics in the process, which saves the crushing and cleaning process in the traditional process, improves the working environment, and avoids secondary pollution. At the same time, the hot air is recycled, no exhaust gas is discharged, and the thermal efficiency is high.

Description

A vertical hot air melting waste plastic recycling granulator

technical field

The utility model relates to the technical field of plastic granulators, in particular to a vertical hot air melting waste plastic recovery granulator.

Background technique

The application range of plastics is becoming wider and wider, replacing metal, wood, paper, etc. in large quantities. With the widespread use of plastics, a large amount of waste plastics appear. Because they are difficult to degrade, their disposal has become a difficult problem, causing environmental pollution. On the other hand, it is also a waste of resources. . Recycling and resource development of waste plastics is a deep understanding of the environment and resources, and a way of survival to reduce environmental pollution and waste of resources caused by waste plastics.

In my country, recycling and granulation is the most common way of resource utilization of waste plastics. The traditional granulation process is to crush and clean the recycled waste plastics, and then extrude them through screw extruders for granulation. The crushing noise is loud, dusty, and Produce sewage and cause secondary pollution.

Utility model content

The purpose of this utility model is to provide a hot air melting waste plastic recycling granulator for the defects of the prior art. The granulator uses hot air to directly melt waste plastic in the process, eliminating the crushing and cleaning process in the traditional process. Improve the working environment and avoid secondary pollution. At the same time, the hot air is recycled, with high thermal efficiency. By precisely controlling the temperature of the hot air, plastic degradation is prevented, and the quality is reliable.

In order to achieve the above object, the utility model adopts the following technical solutions:

The structure of the vertical hot air melting waste plastic recycling granulator includes: a hopper, a flange, a box cover, a hot air circulation box, a melting chamber, a stirring mechanism, a conical hopper, a screw, a barrel, a pelletizing mechanism and a frame;

A box cover is installed above the melting chamber, and there is a hopper on the box cover. The outer wall of the melting chamber is connected to a hot air circulation box, and a stirring mechanism is installed inside. , The barrel is connected to the die, and there is a pelletizing mechanism at the outlet of the die.

The waste plastic enters the melting chamber from the hopper, and is heated and melted in contact with the hot air sent from the hot air circulation box. The stirring mechanism stirs the material to make it heated evenly. And conveying is extruded by the die, and the extruded material is pelletized by the pelletizing mechanism.

The melting chamber includes a drum, a screen, a stirring shaft support, an air intake duct, and an exhaust gas circulation outlet. There are a number of exhaust gas circulation outlets uniformly opened above the drum, and the air intake duct is connected to the lower part. Two air intake ducts are installed above the air intake duct There are two stirring shaft supports, and a screen is installed between the two stirring shaft supports.

The hot air enters the melting chamber from the air inlet duct, passes through the screen to heat the material, the stirring mechanism stirs the material on the screen and squeezes the molten material through the screen into the conical hopper, the waste gas is discharged from the tail gas circulation outlet, and the unmelted material Continue heating to melt on a sieve.

The hot air circulation box includes a hot air circulation box shell, a fan, a fan partition, and a heating pipe. The fan is symmetrically installed in the hot air circulation box shell. The outlet of the fan is connected to the fan partition, and a heating pipe is installed below the fan partition.

Two fans are symmetrically arranged to send the exhaust gas discharged from the exhaust gas circulation outlet to the bottom of the fan partition for heating, and then sent to the heating chamber for recycling through the intake duct. The temperature of the hot air can be controlled to avoid overheating and decomposition of materials.

The beneficial effects of the utility model are: the utility model directly melts waste plastics through hot air, and the melted plastic melt is extruded and granulated through a screw rod, and the recovered plastics do not need to be pulverized, thus avoiding the generation of noise and dust and improving the working environment ; Hot air recycling, no waste water, waste gas discharge, low energy consumption, environmentally friendly.

Description of drawings

Fig. 1 is the overall structure schematic diagram of described vertical hot-air melting waste plastic recycling granulator;

In the figure 1-stirring drive mechanism, 2-hopper, 3-melting chamber, 4-stirring mechanism, 5-cone hopper, 6-granulating mechanism, 7-die, 8-screw, 9-frame, 10- Chain transmission mechanism, 11-barrel, 12-hot air circulation box, 13-box cover, 14-flange;

Fig. 2 is a structural schematic diagram of the melting chamber of the vertical hot air melting waste plastic recycling granulator;

In the figure, 15-drum, 16-tail gas circulation outlet, 17-screen, 18-stirrer shaft support, 19-intake duct.

Fig. 3 is a schematic diagram of the structure of the hot air circulation box of the vertical hot air melting waste plastic recycling granulator;

In the figure, 20-hot air circulation box shell, 21-fan, 22-fan partition, 23 heating pipe;

Fig. 4 is a schematic structural diagram of the stirring mechanism of the vertical hot air melting waste plastic recycling granulator;

24-stirrer shaft among the figure, 25-stirrer bar, 26-feeding helical blade.

Detailed ways

The overall structure diagram of the vertical hot air melting waste plastic recycling granulator of the utility model is shown in Figure 1, and its structure includes a hopper (2), a flange (14), a box cover (13), and a hot air circulation box (12) , melting chamber (3), stirring mechanism (4), stirring transmission mechanism (1), conical bucket (5), screw (8), barrel (11), pelletizing mechanism (6), frame (9) , the melting chamber (3) is equipped with a box cover (13) and a flange (14), the flange (14) is connected to the stirring transmission mechanism (1), and the outer wall of the melting chamber (3) is connected to the hot air circulation box (12) , the inside is equipped with a stirring mechanism (4), the bottom of which is connected to the conical bucket (5), the bottom of the conical bucket (5) is connected to the machine barrel (11), and the inside of the machine barrel (11) is equipped with a screw (8), and the machine barrel (11 ) is fixed on the frame (9), the barrel (11) is connected to the die (7), and the die (7) is connected to the pelletizing mechanism (6). Through the above settings, waste plastics can be put in from the feeding hopper (2), the material enters the melting chamber (3), the hot air circulation box (12) delivers hot air to the melting chamber (3), the material is heated and melted, and is passed through the stirring transmission mechanism (1) Drive the stirring mechanism (4) to stir the material to make it fully melt, and the molten material enters the barrel (11) through the conical hopper (5), and the screw (8) squeezes the material to pass through the die (7) The granulation is completed by the granulation mechanism (6) into strips.

In this embodiment, the melting chamber (3) includes a drum (15), a screen (17), a stirring shaft support (18), an air inlet duct (19), and an exhaust gas circulation outlet (16). (15) There are a number of tail gas circulation outlets (16) uniformly opened on the top, two air intake ducts (19) are symmetrically installed on the bottom, and two stirring shaft supports (18) are installed above the air intake duct (19). Screen cloth (17) is housed between support (18). Through the above settings, the screen (17) can accept the materials entering the melting chamber (3), the hot air enters the melting chamber (3) from the air inlet duct (19), passes through the screen (17) to heat the materials, and at the same time the screen (17) ) and the stirring mechanism (4) can force the molten material to pass through the screen (17) and enter the conical hopper (5), and the exhaust gas after heat exchange with the material is discharged from the exhaust gas circulation outlet (16) into the hot air circulation box body (12), so that the material can be heated by hot air circulation.

In this embodiment, the hot air circulation box (12) includes a hot air circulation box shell (20), a fan (21), a fan partition (22), and a heating pipe (23), and the hot air circulation box shell ( 20) Install two fans (21) symmetrically inside, the outlet of the fans (21) is connected to the fan partition (22), and the heating pipe (23) is installed under the fan partition (22).

Claims (3)

1. A vertical hot air melting waste plastic recycling granulator, characterized in that the structure of the hot air melting waste plastic granulator includes: a hopper, a flange, a box cover, a hot air circulation box, a melting chamber, a stirring mechanism, Conical bucket, screw, barrel, pelletizing mechanism and frame; A box cover is installed above the melting chamber, and there is a hopper on the box cover. The outer wall of the melting chamber is connected to a hot air circulation box, and a stirring mechanism is installed inside. , The barrel is connected to the die, and there is a pelletizing mechanism at the outlet of the die. 2. A vertical hot air melting waste plastic recycling granulator according to claim 1, characterized in that: the melting chamber includes a drum, a screen, a stirring shaft support, an air inlet duct, and an exhaust gas circulation outlet, and the A number of tail gas circulation outlets are evenly opened on the top of the drum, and an air intake duct is connected to the bottom. Two stirring shaft supports are installed above the air intake duct, and a screen is installed between the two stirring shaft supports. 3. A vertical hot air melting waste plastic recycling granulator according to claim 1, characterized in that: the hot air circulation box includes a hot air circulation box shell, a fan, a fan partition, a heating pipe, and the fan is symmetrical Installed in the shell of the hot air circulation box, the outlet of the fan is connected to the fan partition, and a heating pipe is installed under the fan partition.