CN207206820U - A kind of batch mixer for EVA adhesive film production - Google Patents

Abstract

A kind of batch mixer for EVA adhesive film production is the utility model is related to, including top vertical is connected with the base of mixing machine, and the transparent liquid material baffle that mixing machine is divided into upper and lower two chambers is laterally connected with the middle and upper part of batch mixing tube inner chamber.The bottom periphery wall of mixing machine is provided with feed hopper, and periphery wall is provided with discharge bucket above mixing machine, and the discharge bucket is located at the lower section of transparent liquid material baffle.Periphery wall is provided with the bottom chamber of mixing machine and is connected with the rotary shaft of helical blade, and the axis of rotary shaft overlaps with the axis of mixing machine.Multiple spray nozzles that Open Side Down are provided with the upper chamber of mixing machine, the spray nozzle is connected by liquid line.Multiple inlets being connected with liquid line are offered on the periphery wall in the middle part of mixing machine lower chambers.Also include providing the reductor for rotating driving for rotary shaft.

Description

A kind of mixing machine for EVA film production

technical field

The utility model relates to an EVA film production equipment, in particular to a mixing machine used for EVA film production.

Background technique

EVA (polyethylene-vinyl acetate resin) film is currently the most commonly used material in solar packaging technology, mainly by adding various UV absorbers, UV stabilizers, antioxidants and crosslinking agents to the EVA base material. Made with additives. EVA film is generally produced by extrusion-calendering or extrusion-casting. The production process includes melt blending, extrusion, calendering, pulling and coiling, etc.

Before melt blending, it is necessary to mix EVA particles with additives, and it is necessary to apply the additives to each EVA particle to ensure the quality of the finished film, so stirring equipment is used. At present, the mixing equipment usually consists of a mixing cylinder, a cylinder cover, a valve at the bottom of the cylinder, a stirring shaft in the cylinder and a spray nozzle. Since several tons of EVA particles and additives need to be mixed and stirred during the production process, and the feed port of this kind of mixing equipment is at the upper part of the cylinder, and the discharge port is at the bottom of the cylinder, so a lot of manpower is required to carry and lift the EVA particles. At the same time, because most of the stirring is located in the middle of the cylinder, only the middle particles are stirred, which makes the stirring uneven and affects the quality of subsequent EVA film molding.

Utility model content

In order to solve the technical problems in the known technology, the utility model provides a mixing machine for the production of EVA film with simple and reasonable structure design, saving human resources and uniform mixing.

The technical scheme adopted by the utility model to solve the technical problems existing in the known technology is: a kind of mixing machine used for EVA film production includes a base with a mixing tube fixed vertically on the top, and the inner cavity of the mixing tube A liquid-permeable partition plate that divides the mixing cylinder into upper and lower chambers is fixed horizontally on the middle and upper part; the bottom peripheral wall of the mixing cylinder is provided with a feeding hopper, and the upper peripheral wall of the mixing cylinder is provided with a A hopper, the hopper is located below the liquid-permeable material partition; in the lower chamber of the mixing cylinder, a rotating shaft with a spiral blade fixed to the outer peripheral wall is provided, and the axis of the rotating shaft coincides with the axis of the mixing cylinder; In the upper chamber of the mixing cylinder, there are multiple liquid spray nozzles with downward openings, all of which are connected through liquid pipelines; on the outer peripheral wall in the middle of the lower chamber of the mixing cylinder, there are multiple A liquid inlet through which the liquid pipelines are connected; and a speed reducer that provides rotational drive for the rotating shaft.

The advantages and positive effects of the utility model are: the utility model provides a mixing machine for EVA film production, through the setting of the spiral blade, the rotating shaft, the bottom feed port and the top discharge port, it can reduce the The work of manually transporting EVA particles reduces labor costs; the setting of liquid nozzles and liquid inlets can fully mix EVA particles and additives during the process of being stirred and raised, and improve the quality of film forming.

Preferably: both the liquid-permeable partition board and the spiral blade are made of stainless steel porous or stainless steel mesh material, and cannot penetrate EVA raw material particles.

Preferably: the liquid inlet is provided with a second material-separating screen, and the second material-separating screen is made of stainless steel porous or stainless steel mesh material, and cannot pass through EVA raw material particles.

Preferably: a liquid inlet regulating valve is provided on the liquid pipeline.

Preferably: a discharge regulating valve is provided on the discharge hopper.

Preferably: multiple sets of rollers are provided at the bottom of the base.

Preferably: the base is in the shape of a bell mouth, and the large opening is downward.

Description of drawings

Fig. 1 is a schematic diagram of a partial cross-sectional structural view of a preferred front view of the present invention.

In the figure: 1. Base; 2. Mixing barrel; 3. Feeding hopper; 4. Discharging hopper; 5. Liquid-permeable partition; 6. Rotating shaft; Liquid nozzle; 10. Liquid pipeline; 11. Roller; 12. Liquid inlet regulating valve; 13. Liquid inlet; 14. Material separation screen; 15. Discharge regulating valve.

Detailed ways

In order to further understand the content of the invention, features and effects of the present utility model, the following examples are given in detail as follows:

Please refer to Fig. 1, the utility model includes a base 1 with a mixing tube vertically fixed on the top, and a penetrating tube that divides the mixing tube into upper and lower chambers is fixed horizontally on the middle and upper part of the inner cavity of the mixing tube. Liquid separator plate 5. A feed hopper is provided on the bottom peripheral wall of the mixing cylinder, and a discharge hopper 4 is provided on the peripheral wall above the mixing cylinder, and the discharge hopper 4 is located below the liquid-permeable material partition 5 . In the lower chamber of the mixing barrel, there is a rotating shaft 6 with a helical blade 7 fixedly attached to the outer peripheral wall, and the axis of the rotating shaft 6 coincides with the axis of the mixing barrel. In the upper chamber of the mixing barrel, there are a plurality of liquid spray nozzles 9 opening downward, and the liquid spray nozzles 9 are all connected through liquid pipelines 10 . A plurality of liquid inlets 13 communicating with the liquid pipeline 10 are opened on the peripheral wall of the middle part of the lower chamber of the mixing cylinder. It also includes a speed reducer 8 that provides rotational drive for the rotary shaft 6 .

When working, the EVA particles are put into the hopper, driven by the rotating shaft 6 of the screw blade 7 to move upwards, and at the same time, the mixing aid is injected into the mixing barrel from the liquid spray nozzle 9 and the liquid inlet 13, so that the EVA particles and the auxiliary full contact with the agent.

In order to make the EVA particles more fully contact with the additives, the liquid-permeable partition plate 5 and the spiral blade 7 are made of stainless steel porous or stainless steel mesh material, and cannot pass through the EVA raw material particles.

In order to allow the additive to enter the mixing cylinder smoothly from the liquid inlet 13, the liquid inlet 13 is provided with a partition screen 14, the partition screen 14 is made of stainless steel porous or stainless steel mesh material, and cannot penetrate EVA raw material particles.

In order to facilitate the control of the input amount of the auxiliary agent, the liquid pipeline 10 is provided with a liquid inlet regulating valve 12 .

By setting the discharge regulating valve 15 on the discharge hopper 4, the mixing and stirring time of the EVA particles and additives can be controlled, and the discharge amount of the mixed materials can be controlled.

In order to facilitate the flexible movement of the mixer, multiple sets of rollers 11 are provided at the bottom of the base 1 .

In order to increase the stability of the mixer, the base 1 can be set in the shape of a bell mouth, and the large opening is downward.

Claims (7)

1. a kind of batch mixer for EVA adhesive film production, it is characterized in that：The base of mixing machine (2) is connected with including top vertical (1) the transparent liquid material baffle that mixing machine (2) is divided into upper and lower two chambers, is laterally connected with the middle and upper part of mixing machine (2) inner chamber (5)；The bottom periphery wall of mixing machine (2) is provided with feed hopper (3), and periphery wall is provided with discharge bucket (4) above mixing machine (2), The discharge bucket (4) is located at the lower section of transparent liquid material baffle (5)；In the bottom chamber of mixing machine (2) spiral shell is connected with provided with periphery wall The rotary shaft (6) of vane piece (7), and the axis of rotary shaft (6) overlaps with the axis of mixing machine (2)；In mixing machine (2) upper chamber Interior to be provided with multiple spray nozzles that Open Side Down (9), the spray nozzle (9) is connected by liquid line (10)；In mixing machine (2) multiple inlets (13) being connected with liquid line (10) are offered on the periphery wall in the middle part of lower chambers；Also include for rotation Rotating shaft (6) provides the reductor (8) for rotating driving.

2. the batch mixer for EVA adhesive film production as claimed in claim 1, it is characterized in that：The transparent liquid material baffle (5) and spiral shell Vane piece (7) uses stainless steel porous or stainless steel mesh material, and can not pass through EVA feed particles.

3. the batch mixer for EVA adhesive film production as claimed in claim 1, it is characterized in that：It is provided with the inlet (13) Separated material web plate (14), separated material web plate (14) uses stainless steel porous or stainless steel mesh material, and can not pass through EVA raw materials Grain.

4. the batch mixer for EVA adhesive film production as claimed in claim 1, it is characterized in that：Set on the liquid line (10) There is feed liquor regulating valve (12).

5. the batch mixer for EVA adhesive film production as claimed in claim 1, it is characterized in that：Discharging is provided with discharge bucket (4) Regulating valve (15).

6. the batch mixer for EVA adhesive film production as claimed in claim 1, it is characterized in that：Base (1) bottom is provided with more Group roller (11).

7. the batch mixer for EVA adhesive film production as claimed in claim 1, it is characterized in that：The base (1) is toroidal Shape, and big opening is downward.