CN211031136U

CN211031136U - Feeding system for double-screw extruder

Info

Publication number: CN211031136U
Application number: CN201921071315.XU
Authority: CN
Inventors: 卢伟; 徐乃奎; 张忠胜
Original assignee: Nanjing Xinyang New Energy Technology Co ltd
Current assignee: Nanjing Xinyang New Energy Technology Co ltd
Priority date: 2019-07-09
Filing date: 2019-07-09
Publication date: 2020-07-17
Anticipated expiration: 2029-07-09

Abstract

The utility model discloses a feeding system for a double-screw extruder, which comprises a first mixing subsystem and a second mixing subsystem communicated with the outlet of the first mixing subsystem; first mixing subsystem includes the retort, set up in the first feed inlet of retort jar body top, parcel are in retort outlying first heating jacket, erect in the first agitating unit of retort top and set up in the first discharge gate of retort below, first agitating unit include first motor and with the first agitator that first motor is connected. The utility model discloses set up the reinforced container in grades, first order raw materials feeding device is the retort for hold liquid raw materials, to the liquid raw materials that needs reacted in advance, can get into subsequent compounding jar after the reaction finishes.

Description

Feeding system for double-screw extruder

Technical Field

The utility model relates to a processing equipment, in particular to a charge-in system for double screw extruder.

Background

Reinforced plastics are thermosetting resins reinforced with glass fibers, commonly known as glass reinforced plastics. The processing equipment made of the composite material is a processing system with a double-screw extruder as main equipment, a high-speed mixer is commonly used as a feeding mechanism in the prior art, part of raw materials usually have certain humidity and viscosity, the conditions of bonding or bridging and the like can occur in the feeding process, the feeding of the raw materials is seriously influenced, and the technical defects are difficult to overcome by the conventional feeding device.

Another problem is that part of the liquid raw material is added to the reaction vessel to perform the previous reaction, but the existing apparatuses perform the reaction first and then transfer the raw material liquid, which increases the production process.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: in order to solve the problem of the prior art, the utility model provides a charge-in system for double screw extruder can carry out earlier stage treatment to the liquid of adding the blending bunker, realizes that different raw and other materials substep adds.

The technical scheme is as follows: the utility model discloses a feeding system for a double-screw extruder, which comprises a first mixing subsystem and a second mixing subsystem communicated with the outlet of the first mixing subsystem;

the first mixing subsystem comprises a reaction tank, a first feed inlet arranged above a tank body of the reaction tank, a first heating sleeve wrapped on the periphery of the reaction tank, a first stirring device erected above the reaction tank and a first discharge outlet arranged below the reaction tank, wherein the first stirring device comprises a first motor and a first stirrer connected with the first motor;

the second mixes the subsystem include with the compounding jar that first discharge gate is connected, set up in the second feed inlet of compounding jar top and set up in the third feed inlet of compounding jar top, set up in the second discharge gate of compounding jar bottom, set up in the inside second agitating unit of compounding jar, second agitating unit include the second motor and with the second agitator that the second motor is connected.

Preferably, the first mixing subsystem is communicated with the first discharge port and the second feed port through a first connecting pipe, and the first connecting pipe is sequentially connected with a first one-way valve, a first valve for controlling the opening and closing of the first connecting pipe and a first pump body.

Preferably, the reaction tank is provided with a first air inlet which is communicated with the air storage device, and a second valve is arranged between the first air inlet and the air storage device.

Preferably, the third feed port of the mixing tank is provided with a temperature detection device.

Preferably, the outer wall of the mixing tank is wrapped with a second heating sleeve.

Preferably, the first feed inlet is provided with a first blocking plug.

Preferably, a safety valve is arranged on the reaction tank.

Preferably, a fourth feeding hole is formed in the mixing tank.

Preferably, the side wall of the mixing tank is provided with a guide plate which inclines downwards.

Has the advantages that: (1) the utility model is provided with a grading feeding container, the first-stage raw material feeding device is a reaction tank for holding liquid raw materials, and the liquid raw materials which need to be reacted in advance can enter a subsequent mixing tank after the reaction is finished; (2) the utility model connects the reaction tank with the gas storage tank and is used for providing inert reaction conditions for the reaction tank; (3) the utility model discloses a compounding jar lateral wall is provided with the baffle, and the wall is stained with to the raw materials of avoiding adding.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

Example 1: as shown in figure 1, the feeding system for the double-screw extruder of the utility model consists of a first mixing subsystem 1 and a second mixing subsystem 2 communicated with the outlet of the first mixing subsystem 1.

The first mixing subsystem 1 comprises a reaction tank 11, a first feeding hole 12 arranged above a tank body of the reaction tank 11, a first heating jacket 13 wrapped on the periphery of the reaction tank 11, a first stirring device 14 erected above the reaction tank 11 and a first discharging hole 15 arranged below the reaction tank 11, wherein the first stirring device 14 comprises a first motor 141 and a first stirrer 142 connected with the first motor 141; the first mixing subsystem 1 is communicated with the first discharge hole 15 and the second feed hole 22 through a first connecting pipe 16, and the first connecting pipe 16 is sequentially connected with a first check valve 161, a first valve 162 for controlling the opening and closing of the first connecting pipe and a first pump body 163; the first feed inlet 12 is provided with a first seal plug 121, the reaction tank 11 is provided with a first air inlet 17, the first air inlet 17 is communicated with the air storage device 3, and a second valve 31 is arranged between the first air inlet 17 and the air storage device 3; the reaction tank 11 is provided with a safety valve 18.

The second mixing subsystem 2 comprises a mixing tank 21 connected with the first discharge hole 15, a second feed hole 22 arranged above the mixing tank 21, a third feed hole 23 arranged above the mixing tank 21, a second discharge hole 24 arranged at the bottom of the mixing tank 21, and a second stirring device 25 arranged inside the mixing tank 21, wherein the second stirring device 25 comprises a second motor 251 and a second stirrer 252 connected with the second motor 251. The third feeding port 23 of the mixing tank 21 is provided with a temperature detection device 231; the outer wall of the mixing tank 21 is wrapped with a second heating sleeve 26; a fourth feed inlet 27 is arranged on the mixing tank 21; the side walls of the mixing bowl 21 are provided with downwardly sloping guide plates 28.

The utility model discloses feed system's operating method does: first heating jacket 13 is through linking to each other with heating device and providing reaction temperature for retort 11, set up temperature-detecting device in retort 11 simultaneously, be used for real-time detection reaction temperature, be reaction liquid in the retort, the raw materials after the reaction finishes send into compounding jar 21 with the raw materials through first discharge gate 15, when the reaction needs go on under the inert gas protection, open second valve 31, let in inert gas from the gas storage device, and simultaneously, when the back of finishing ventilating, with the shutoff stopper with first feed inlet sealed, be provided with relief valve 18 simultaneously, avoid the retort at the reaction, the safety problem that the pressure is too big to lead to appears. The second mixing subsystem 2 is provided with a third feed inlet 23 and a fourth feed inlet 27, and when the raw materials contain components with overlarge viscosity, the components can be added through different feed inlets, so that the phenomenon that the materials are mixed unevenly due to premixing at the feed inlets is avoided.

Claims

1. A feeding system for a twin-screw extruder, characterized by comprising a first mixing sub-system (1) and a second mixing sub-system (2) in outlet communication with the first mixing sub-system (1);

the first mixing subsystem (1) comprises a reaction tank (11), a first feeding hole (12) arranged above a tank body of the reaction tank (11), a first heating jacket (13) wrapped on the periphery of the reaction tank (11), a first stirring device (14) erected above the reaction tank (11) and a first discharging hole (15) arranged below the reaction tank (11), wherein the first stirring device (14) comprises a first motor (141) and a first stirrer (142) connected with the first motor (141);

the second mixing subsystem (2) comprises a mixing tank (21) connected with the first discharge hole (15), a second feed hole (22) arranged above the mixing tank (21), a third feed hole (23) arranged above the mixing tank, a second discharge hole (24) arranged at the bottom of the mixing tank (21), and a second stirring device (25) arranged inside the mixing tank (21), wherein the second stirring device (25) comprises a second motor (251) and a second stirrer (252) connected with the second motor (251).

2. The feeding system for twin-screw extruder according to claim 1, wherein the first mixing subsystem (1) is communicated with the first discharge port (15) and the second feed port (22) through a first connecting pipe (16), and a first check valve (161), a first valve (162) for controlling the opening and closing of the first connecting pipe and a first pump body (163) are connected on the first connecting pipe (16) in sequence.

3. The feeding system for twin-screw extruder according to claim 1, characterized in that the reaction tank (11) is provided with a first gas inlet (17), the first gas inlet (17) is in communication with a gas storage device (3), and a second valve (31) is provided between the first gas inlet (17) and the gas storage device (3).

4. Feeding system for a twin-screw extruder according to claim 1, characterised in that the third feeding opening (23) of the mixing bowl (21) is provided with a temperature detection device (231).

5. Feeding system for a twin-screw extruder according to claim 1, characterised in that the outer wall of the mixing bowl (21) is wrapped with a second heating jacket (26).

6. Feeding system for a twin-screw extruder according to claim 1, characterised in that the first feeding opening (12) is provided with a first closing plug (121).

7. The feeding system for twin-screw extruders according to claim 1, characterized in that the reaction tank (11) is provided with a safety valve (18).

8. Feeding system for a twin-screw extruder according to claim 1, characterised in that a fourth feeding opening (27) is provided in the mixing bowl (21).

9. Feeding system for a twin-screw extruder according to claim 1, characterised in that the side walls of the mixing bowl (21) are provided with downwardly inclined guide plates (28).