CN218701091U

CN218701091U - High oil charge high filling material system unloader is used to thermoplasticity body

Info

Publication number: CN218701091U
Application number: CN202221405631.8U
Authority: CN
Inventors: 罗明华; 彭鹤松; 黄玉华
Original assignee: Jiangxi Yongsu Polymer Material Co ltd; Jiangxi Guangyuan Chemical Co Ltd
Current assignee: Jiangxi Yongsu Polymer Material Co ltd; Jiangxi Guangyuan Chemical Co Ltd
Priority date: 2022-06-08
Filing date: 2022-06-08
Publication date: 2023-03-24
Anticipated expiration: 2032-06-08

Abstract

A high-oil-filling and high-filling material system blanking device for a thermoplastic body comprises a blanking hopper (1), an X-shaped stirrer (2), a double-screw extruder (5), a drying and cooling device (6), a first nozzle (7) and a second nozzle (8) of a pulse airflow impact device, a spiral stirrer (10), a granular material returning and mixing device (12), a returning device (13), an air blower (14) and a return pipe (15). The utility model adopts the aggregate backfilling device, which solves the problem of difficult blanking under the high oil charge and high filling formula system; the adopted pulse airflow impact device solves the problem of material bridging. The utility model is suitable for a thermoplastic elastomer's unloading technology.

Description

High oil charge high filling material system unloader is used to thermoplasticity body

Technical Field

The utility model relates to a thermoplasticity body is with high oil charge high packing material system unloader belongs to thermoplastic elastomer material processing technology field.

Background

In the process of processing the thermoplastic elastomer, in an SEBS/white oil/PP system, oil is required to be filled for plasticization, the cost is saved by adding the filler, for example, superfine inorganic powder calcium carbonate can be added, the addition amount of calcium carbonate of some products can reach about 50 percent, even higher, in the actual production process, part of oil can be separated out from the oil-filled SEBS, the part of oil calcium carbonate powder can be absorbed to form a material block, in the blanking device, in the originally uniform mixing system, the calcium powder can slowly reach the bottom of the blanking device, the lower the mesh and the more the addition amount are, the more obvious the calcium powder is, the calcium powder enters a double-screw extruder, the wall adhesion phenomenon is easily generated at the blanking position of one section of the double-screw extruder, the resin cannot be effectively plasticized, and the blanking is stopped, even the material is blocked, and the production is seriously influenced; meanwhile, a SEBS/white oil/PP material system with high oil charge ratio can generate a bridging phenomenon at a stirrer at the bottom of the hopper.

In order to avoid the phenomena of material blockage and bridging, a common worker holds a rod and pokes the rod in a blanking hopper to help blanking; when the putty appears, the worker needs to disassemble the equipment, so that the labor intensity is increased, and the production efficiency is greatly reduced.

Disclosure of Invention

The utility model aims at solving the problem of the blanking of the thermoplastic elastomer, developing a blanking device of a high oil-filled high-filling material system for a thermoplastic body.

Realize the technical scheme of the utility model as follows, a thermoplasticity body is with high filling material system unloader that fills of oil, including hopper, double screw extruder, dry cooling device, pulse air current impact device, aggregate feed back compounding device, feed back device and air-blower down. The discharge hole of the discharging hopper is connected with the double-screw extruder; feeding the material extruded by the double-screw extruder into a drying and cooling device; the discharge end of the drying and cooling device is connected with a material returning device, the material returning device is connected with a granular material returning and mixing device through a material returning pipe, and the material returning device is also connected with an air blower; the granular material returning and mixing device is positioned above the discharging hopper, and the discharging end of the granular material returning and mixing device is connected with a pipeline which is introduced into the discharging hopper; the pulse airflow impact device is arranged at the bottom of the discharging hopper.

The blanking hopper is of a vertical conical structure, and the bottom of the blanking hopper is provided with a spherical blanking section; a vertical spiral stirrer is arranged in the center of the conical part of the blanking hopper and is driven by a stirring motor arranged in the center of the top cover of the blanking hopper; a feed inlet and an exhaust hole are respectively formed in two sides of the top cover of the discharging hopper; an X-shaped stirrer is horizontally arranged in the spherical blanking section of the blanking hopper and is driven by a first motor outside the spherical blanking section; and nozzles of the pulse airflow impact device are distributed on two sides below the spherical blanking section.

The double-screw extruder is installed in the horizontal direction, and a second motor is installed at one end of the double-screw extruder to drive the double-screw extruder.

The pulse airflow impact device comprises an injection pipe, a nozzle, a pulse valve, an air compressor and an electromagnetic program control instrument; one end of the blowing pipe is connected with the nozzle, and the other end of the blowing pipe is connected with the pulse valve; the pulse valve is also connected with an air compressor and an electromagnetic program control instrument respectively; the air compressor provides compressed air for forming air flow to the blowing pipe and the nozzle through the pulse valve; the electromagnetic program controller controls the work of the pulse valve.

The nozzles extend into the spherical blanking section, the opening of each nozzle faces to the direction of the sphere center of the spherical blanking section, and the included angles between the two nozzles and the sphere center are set to be 120 degrees and are respectively a first nozzle and a second nozzle; the other end of the nozzle is connected with a blowing pipe.

The spiral stirrer is made of steel materials, is vertical to the ground and is wide at the top and narrow at the bottom along with the change of the size of the discharging hopper.

The utility model has the advantages that the blanking device of the utility model adopts the aggregate backfilling device, which solves the problems of difficult blanking and bridging under the high oil charge and high filling formula system; the utility model discloses unloader has adopted pulse airflow to strike the device, the problem of bridging that appears when having solved the material unloading. The utility model discloses the spiral agitator that lower hopper of device adopted can be with the material stirring once more, especially in time hangs down with the material at hopper edge, avoids appearing the wall built-up phenomenon, takes turns to after the inorganic powder oil absorption in the hopper under can avoiding and enters into the hopper bottom earlier, gets into double screw extruder, and the putty condition appears.

The utility model discloses unloader has solved the thermoplastic elastomer unloading and has had a great deal of problem, is applicable to thermoplastic elastomer's unloading.

Drawings

Fig. 1 is a schematic structural view of the blanking device of the present invention;

FIG. 2 is a schematic view of a pulsed gas stream impingement device;

in the figure, 1 is a blanking hopper, 2 is an X-shaped stirrer, 3 is a first motor, 4 is a second motor, 5 is a double-screw extruder, 6 is a drying and cooling device, 7 is a first nozzle, 8 is a second nozzle, 9 is a stirring motor, 10 is a spiral stirrer, 11 is an exhaust hole, 12 is a granular material returning and mixing device, 13 is a returning device, 14 is an air blower, and 15 is a returning pipe; 16 an air compressor; 17 an electromagnetic program controller; 18 pulse valve.

Detailed Description

The specific embodiment of the present invention is shown in fig. 1.

The blanking device for the high-oil-filling high-filling material system for the thermoplastic body comprises a blanking hopper 1, a double-screw extruder 5, a drying and cooling device 6, a pulse air flow impact device, a granule material returning and mixing device 12, a returning device 13 and an air blower 14.

The discharge hole of the discharge hopper 1 of the embodiment is connected with a double-screw extruder 5; the material extruded by the double-screw extruder 5 enters a drying and cooling device 6; the discharge end of the drying and cooling device 6 is connected with a material returning device 13, the material returning device 13 is connected with a granular material returning and mixing device 12 through a material returning pipe 15, and the material returning device 13 is also connected with an air blower 14; the granular material return mixing device 12 is positioned above the discharging hopper 1, and the discharging end of the granular material return mixing device 12 is connected with a pipeline which is introduced into the discharging hopper; the pulse airflow impact device is arranged at the bottom of the blanking hopper 1.

The granule feed back compounding device 12 of this embodiment has the agitator, and the finished product material that will extrude is with same TPE prescription material compounding after even, reentry hopper 1 down.

The spiral stirrer of the embodiment is of a spiral steel structure, and is vertical to the ground and wide at the top and narrow at the bottom along with the change of the size of the discharging hopper.

The feed back system of the embodiment is composed of an air blower 14 and a feed back pipe 15, wherein the air blower 14 blows the dried and cooled granules to the granule feed back mixing device 12 at a high speed, and the total amount of the granules is 1/10 of the total amount of the production unit.

The pulse airflow impact device of the embodiment comprises an air compressor 16, an electromagnetic program controller 17, a pulse valve 18, a blowing pipe, a first nozzle 7 and a second nozzle 8, wherein the nozzles can be replaced. The structure is shown in fig. 2. The pulse airflow impact device is arranged outside the spherical blanking section, and the nozzle of the injection pipe is arranged in the spherical blanking section. The pulse airflow impact device has the function that when the bridging phenomenon of materials in the lower hopper occurs, the pulse airflow impact device is started, compressed air provided by the air compressor 16 to the pulse valve 18 becomes pulse airflow through the two nozzles, and the materials quickly fall under the pressure impact of the pulse airflow.

The first nozzle 7 and the second nozzle 8 which are arranged in the spherical blanking section are respectively connected with a pulse valve 18 through an injection pipe, and an air compressor 16 supplies compressed air to the pulse valve 18 under the control of an electromagnetic program controller 17. The nozzle opening orientation of jetting pipe is the centre of sphere direction of crossing spherical unloading section, and 2 gas ejector tubes are arranged in spherical unloading section bottom, are 120 settings with the contained angle of centre of sphere, ensure that the jet-propelled acts on the material.

The nozzle is a conical structure, the diameter of the opening of the nozzle is 1.0mm, the length of the opening is 5.0mm, the diameter of the injection pipe is 5.0mm, the nozzle of the air injection pipe can be replaced at any time, powder can be ensured not to enter, the nozzle can not be blocked, and meanwhile, sufficient acting pressure is ensured.

The pulse airflow impact device of the embodiment works as follows:

after the material blanking system is started to work for 5 minutes, the electromagnetic program controller 17 starts to work, and the pulse valve 18 is closed and opened every 30 seconds, so that compressed air acts on the material through the nozzle; the time can be manually adjusted, the action time is 10 seconds each time, and the steps are repeated; the pulse airflow impact device can be manually closed according to the amount of the materials in the hopper. The airflow pressure has high pressure grade of 0.4-0.5MPa and low pressure grade of 0.2-0.3MPa, and can be selected manually, the oil filling proportion is large, the filling material is selected from more high grade, otherwise, the low grade is selected.

Claims

1. A blanking device of a high-oil-filling and high-filling material system for a thermoplastic body is characterized by comprising a blanking hopper, a double-screw extruder, a drying and cooling device, a pulse airflow impact device, a granular material returning and mixing device, a returning device and an air blower; the discharge hole of the discharging hopper is connected with the double-screw extruder; feeding the material extruded by the double-screw extruder into a drying and cooling device; the discharge end of the drying and cooling device is connected with a material returning device, the material returning device is connected with a granular material returning and mixing device through a material returning pipe, and the material returning device is also connected with an air blower; the discharge end of the granular material returning and mixing device is connected with a pipeline which is introduced into the discharging hopper; the pulse airflow impact device is arranged at the bottom of the discharging hopper.

2. The blanking device for the high oil-filled high-filling material system for the thermoplastic body as claimed in claim 1, wherein the blanking hopper is of a vertical conical structure, and the bottom of the blanking hopper is provided with a spherical blanking section; a vertical spiral stirrer is arranged in the center of the conical part of the blanking hopper and is driven by a stirring motor arranged in the center of the top cover of the blanking hopper; a feed port and an exhaust hole are respectively formed in two sides of the top cover of the discharging hopper; an X-shaped stirrer is horizontally arranged in the spherical blanking section of the blanking hopper and is driven by a first motor outside the spherical blanking section; and nozzles of the pulse airflow impact device are distributed on two sides below the spherical blanking section.

3. The blanking device for the high oil-filled high-filling material system for the thermoplastic body as claimed in claim 1, wherein the twin-screw extruder is installed in a horizontal direction, and a second motor is installed at one end of the twin-screw extruder to drive the twin-screw extruder.

4. The blanking device for the high oil-filled high-filling material system for the thermoplastic body as claimed in claim 1, wherein the pulse air flow impact device comprises an injection pipe, a nozzle, a pulse valve, an air compressor and an electromagnetic program controller; one end of the injection pipe is connected with the nozzle, and the other end of the injection pipe is connected with the pulse valve; the pulse valve is also connected with an air compressor and an electromagnetic program control instrument respectively; the air compressor provides compressed air forming airflow to the injection pipe and the nozzle through the pulse valve; the electromagnetic program controller controls the work of the pulse valve.

5. The blanking device for the high oil-filled high-filling material system for the thermoplastic body as claimed in claim 2, wherein the nozzle extends into the interior of the spherical blanking section, and the opening of the nozzle faces to the direction of the spherical center of the spherical blanking section; the included angles between the two nozzles and the center of the sphere are 120 degrees, and the two nozzles are respectively a first nozzle and a second nozzle; the other end of the nozzle is connected with a blowing pipe.

6. The blanking device of claim 2, wherein the helical agitator is made of steel material, and is vertical to the ground and has a wide top and a narrow bottom as the size of the blanking hopper changes.

7. The blanking device of claim 2, wherein a stirrer is disposed in the pellet feed back mixing device.