Polyethylene melting device for injection molding barrel production

Abstract

The utility model discloses a polyethylene melting device for producing an injection molding barrel. The polyethylene melting device comprises a processing bottom plate, a heating box body is fixedly connected onto the processing bottom plate, a melting tank body is fixedly connected onto the heating box body, a feeding pipe is fixedly connected onto the melting tank body, and a first electric valve is mounted on the feeding pipe. Waste gas in the melting tank body can be extracted through the first air extracting pump, so that the waste gas enters the bag type filter through the first air pipe and the second air pipe, particulate matters in the waste gas can be removed by the bag type filter, and the waste gas with the particulate matters removed enters the adsorption box body through the air conveying pipe; an activated carbon net on a sliding placement frame can adsorb volatile organic compounds, a second sucking pump is used for sucking waste gas in an adsorption box body, so that the waste gas in the adsorption box body enters a catalytic combustion box through a first conveying pipe and a second conveying pipe, and the catalytic combustion box is used for carrying out catalytic combustion on the waste gas; therefore, harmful substances in the waste gas are thoroughly decomposed.

Description

Technical Field

[0001] This utility model belongs to the field of injection molding barrel production technology, and in particular relates to a polyethylene melting device for injection molding barrel production. Background Technology

[0002] In the processing of polyethylene raw materials, it is necessary to melt the raw materials.

[0003] Utility model patent CN218053927U discloses a polyethylene blow molding barrel melting and plasticizing device for a hollow blow molding production system. The device includes a heating box, a melting tank embedded in the top of the heating box, a heating rod installed inside the heating box, a feed pipe fixedly installed on one side of the melting tank, a drive box inside the melting tank, a vertical pipe rotatably mounted on the drive box, a rotating device on the drive box to drive the vertical pipe to rotate, stirring rods fixed on both sides of the vertical pipe, a conveying screw rotatably mounted inside the vertical pipe, a drive device at the bottom of the heating box to drive the conveying screw to rotate, and a heating box fixedly installed above the drive box inside the heating box. The top extends into the heating box and is rotatably connected to a heat-conducting pipe. Heating rods are installed on both sides of the heating box. The vertical pipe is rotatably connected to the drive box. The heat-conducting pipe is S-shaped. A discharge pipe is installed on the top of the heating box. The top of the heat-conducting pipe is rotatably connected to the discharge pipe. A discharge pipe is slidably installed on one side of the melting tank. The discharge pipe is located at the top end of the discharge pipe. This device does not treat the waste gas when melting polyethylene. If it is discharged into the surrounding environment, it will release harmful gases and particulate matter, reduce air quality, and the waste gas may affect the operation of the equipment and increase maintenance costs. Therefore, a polyethylene melting device for injection molding barrel production is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a polyethylene melting device for injection molding barrel production, so as to solve the problems mentioned in the background art.

[0005] A polyethylene melting device for injection molding barrel production includes a processing base plate, a heating chamber fixedly connected to the processing base plate, an exhaust pipe fixedly connected to the heating chamber, a melting tank fixedly connected to the heating chamber, an inlet pipe fixedly connected to the melting tank, a first electric valve installed on the inlet pipe, a discharge pipe fixedly connected to the melting tank, a second electric valve installed on the discharge pipe, multiple heating tubes installed inside the heating chamber, a connecting bracket fixedly connected to the heating chamber, a first air pump fixedly installed on the connecting bracket, a first air pipe connected to the first air pump and the melting tank, and a second air pipe connected to the first air pump. A bag filter is fixedly installed on the plate and connected to a second gas pipe. A gas supply pipe is connected to the bag filter. An adsorption box is fixedly connected to the processing base plate and connected to the gas supply pipe. Multiple sliding grooves are opened on the adsorption box, and multiple sliding placement racks are slidably connected to the adsorption box. Activated carbon mesh is installed on the sliding placement racks. A base plate fixing frame is fixedly connected to the processing base plate, and a second suction pump is fixedly installed on the base plate fixing frame. A first delivery pipe is connected between the second suction pump and the adsorption box, and a second delivery pipe is connected to the second suction pump. A catalytic combustion box is fixedly installed on the processing base plate and connected to the second delivery pipe.

[0006] Furthermore, the heating chamber is equipped with an insulation layer.

[0007] Furthermore, a support frame is fixedly connected to the melting tank, a motor is fixedly installed on the support frame, a rotating shaft is connected to the top of the motor output shaft, the rotating shaft is rotatably connected to the melting tank, and an agitator is installed on the rotating shaft.

[0008] Furthermore, a handle is fixedly connected to the sliding shelf.

[0009] The beneficial effects of this utility model are:

[0010] This invention uses a first suction pump to extract waste gas from the melting tank, which then enters a bag filter through a first and second air pipe. The bag filter removes particulate matter from the waste gas. The particulate-free waste gas then enters the adsorption chamber through a gas delivery pipe. The activated carbon mesh on the sliding rack adsorbs volatile organic compounds. A second suction pump then extracts waste gas from the adsorption chamber, which then enters a catalytic combustion chamber through a first and second delivery pipe. The catalytic combustion chamber catalytically combusts the waste gas, thereby completely decomposing the harmful substances in the waste gas. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the polyethylene melting device for injection molding barrel production according to this utility model;

[0012] Figure 2 This is a cross-sectional three-dimensional structural diagram of the heating chamber.

[0013] Figure 3 A side view of the three-dimensional structure of the base plate;

[0014] Figure 4 This is a cross-sectional side view of the adsorption chamber.

[0015] In the diagram, 1-processing base plate, 2-heating box, 3-melting tank, 4-feed pipe, 5-first electric valve, 6-support frame, 7-motor, 8-rotating shaft, 9-stirrer, 10-discharge pipe, 11-second electric valve, 12-heating pipe, 13-connecting fixing frame, 14-first vacuum pump, 15-first gas pipe, 16-second gas pipe, 17-bag filter, 18-gas delivery pipe, 19-adsorption box, 20-sliding placement rack, 21-activated carbon mesh, 22-base plate fixing frame, 23-second vacuum pump, 24-first delivery pipe, 25-second delivery pipe, 26-catalytic combustion box. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0017] like Figures 1 to 4The polyethylene melting device for injection molding barrel production shown in this utility model includes a processing base plate 1, a heating chamber 2 fixedly connected to the processing base plate 1, an exhaust pipe fixedly connected to the heating chamber 2, a melting tank 3 fixedly connected to the heating chamber 2, an inlet pipe 4 fixedly connected to the melting tank 3, a first electric valve 5 installed on the inlet pipe 4, a discharge pipe 10 fixedly connected to the melting tank 3, a second electric valve 11 installed on the discharge pipe 10, multiple heating pipes 12 installed inside the heating chamber 2 for heating the raw materials, a connecting bracket 13 fixedly connected to the heating chamber 2, a first air pump 14 fixedly installed on the connecting bracket 13, a first air pipe 15 connected to the first air pump 14 and the melting tank 3, a second air pipe 16 connected to the first air pump 14, a bag filter 17 fixedly installed on the processing base plate 1, and the bag filter 17 and the second... A gas pipe 16 is connected to a bag filter 17 to remove particulate matter from the exhaust gas. A gas supply pipe 18 is connected to the bag filter 17. An adsorption box 19 is fixedly connected to the processing base plate 1. The adsorption box 19 is connected to the gas supply pipe 18. Multiple sliding grooves are provided on the adsorption box 19. Multiple sliding placement racks 20 are slidably connected to the adsorption box 19. Activated carbon mesh 21 is installed on the sliding placement racks 20. The activated carbon mesh 21 is used to adsorb volatile organic compounds. A base plate fixing frame 22 is fixedly connected to the processing base plate 1. A second suction pump 23 is fixedly installed on the base plate fixing frame 22. A first delivery pipe 24 is connected between the second suction pump 23 and the adsorption box 19. A second delivery pipe 25 is connected to the second suction pump 23. A catalytic combustion box 26 is fixedly installed on the processing base plate 1. The catalytic combustion box 26 is connected to the second delivery pipe 25. The catalytic combustion box 26 is used to completely decompose harmful substances in the exhaust gas.

[0018] The heating chamber 2 has an internal heat insulation layer.

[0019] A support frame 6 is fixedly connected to the melting tank 3, and a motor 7 is fixedly installed on the support frame 6. A rotating shaft 8 is connected to the top of the output shaft of the motor 7. The rotating shaft 8 is rotatably connected to the melting tank 3. An agitator 9 is installed on the rotating shaft 8. The agitator 9 is used to stir the raw materials.

[0020] A handle is fixedly connected to the sliding shelf 20.

[0021] The working principle of this invention is as follows: After the raw material enters the melting tank through the feed pipe, the first electric valve closes the feed pipe, and the heating pipe and motor start working. The heating pipe heats the raw material in the melting tank, and the motor drives the rotating shaft and stirrer to rotate. The stirrer agitates the raw material, ensuring that it is heated evenly. During the heating process, waste gas is generated. The first air pump extracts the waste gas from the melting tank, allowing it to enter the bag filter through the first and second air pipes. The bag filter removes particulate matter from the waste gas. Waste gas enters the adsorption chamber through the gas delivery pipe. The activated carbon mesh on the sliding rack adsorbs volatile organic compounds. The second suction pump extracts the waste gas from the adsorption chamber, allowing it to enter the catalytic combustion chamber through the first and second delivery pipes. The catalytic combustion chamber catalytically combusts the waste gas, thus completely decomposing the harmful substances in the waste gas. After the raw material is melted, the second electric valve is controlled to open the discharge pipe, thereby realizing the discharge of the raw material. When the activated carbon mesh needs to be replaced, it can be replaced by pulling out the sliding rack from the adsorption chamber.

[0022] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A polyethylene melting device for injection molded tub production, characterized by: The polyethylene melting device for injection molding barrel production includes a processing base plate, a heating chamber fixedly connected to the processing base plate, an exhaust pipe fixedly connected to the heating chamber, a melting tank fixedly connected to the heating chamber, an inlet pipe fixedly connected to the melting tank, a first electric valve installed on the inlet pipe, a discharge pipe fixedly connected to the melting tank, a second electric valve installed on the discharge pipe, multiple heating tubes installed inside the heating chamber, a connecting bracket fixedly connected to the heating chamber, a first air pump fixedly installed on the connecting bracket, a first air pipe connected to the first air pump and the melting tank, and a second air pipe connected to the first air pump. A bag filter is fixedly installed and connected to a second gas pipe. A gas supply pipe is connected to the bag filter. An adsorption box is fixedly connected to the processing base plate and connected to the gas supply pipe. Multiple sliding grooves are opened on the adsorption box, and multiple sliding placement racks are slidably connected to the adsorption box. Activated carbon mesh is installed on the sliding placement racks. A base plate fixing frame is fixedly connected to the processing base plate, and a second suction pump is fixedly installed on the base plate fixing frame. A first delivery pipe is connected between the second suction pump and the adsorption box, and a second delivery pipe is connected to the second suction pump. A catalytic combustion box is fixedly installed on the processing base plate and connected to the second delivery pipe.

2. The polyethylene melting device for injection molded tub production according to claim 1, characterized by: The heating chamber is equipped with an insulation layer.

3. The polyethylene melting device for injection molded tub production of claim 1, wherein: A support frame is fixedly connected to the melting tank, and a motor is fixedly installed on the support frame. A rotating shaft is connected to the top of the motor output shaft, and the rotating shaft is rotatably connected to the melting tank. An agitator is installed on the rotating shaft.

4. The polyethylene melting device for injection molded tub production of claim 1, wherein: The sliding shelf is fixedly connected to a handle.

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