Lateral downward exhaust structure of double-screw extruder

Abstract

The utility model relates to the technical field of double-screw extruders, in particular to a lateral downward exhaust structure of a double-screw extruder. Comprising a discharge tank, a storage tank, an inner filter separation cylinder, a discharge tank sealing plate, a transparent window, a storage tank sealing plate, a hoop, a fluororubber sealing ring, an air hole, a reinforcing supporting plate, an upper blocking piece, a lower blocking piece, an air inlet connector, a 2-inch quick-change hoop, a waste discharge nozzle and a vacuum air suction nozzle. The problem that waste adheres to and blocks an exhaust port in a traditional exhaust device is solved, the device adopts the lateral downward exhaust design, the waste is easier to exhaust in the natural state, the blocking risk is reduced, the interior is convenient to clean or replace due to the quick-release design, the downtime is remarkably shortened, and the production efficiency is improved.

Description

A side-down exhaust structure for a twin-screw extruder Technical Field

[0001] This utility model relates to the field of twin-screw extruder technology, specifically to a side-down exhaust structure for a twin-screw extruder. Background Technology

[0002] In the actual operation of a twin-screw extruder, the material needs to be devolatiled and vented during mixing and shearing. Current side venting methods, evolved from side feeders, utilize the feed inlet of traditional side feeders for venting. Over long-term operation, the venting ports are prone to clogging due to the adsorption of volatile substances. This adhesion is very strong and difficult to clean, impacting production efficiency, increasing downtime, and presenting certain shortcomings. Summary of the Invention

[0003] The purpose of this invention is to provide a side-down exhaust structure for a twin-screw extruder to solve the aforementioned technical problems.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a side-down exhaust structure for a twin-screw extruder, comprising a discharge tank, a storage tank, and an inner filter separator. One end of the discharge tank and one end of the storage tank are fixedly connected by clamps. The discharge tank has an air inlet connector at the top and a waste discharge nozzle at the bottom. The storage tank has a vacuum extraction nozzle at the top. The inner filter separator is placed inside the discharge tank and the storage tank. It has two air holes at the top and one air hole at the bottom. The two air holes at the top correspond to the positions of the air inlet connector and the vacuum extraction nozzle, respectively, and the air hole at the bottom corresponds to the position of the waste discharge nozzle. The inner filter separator is equipped with baffles. The top of the inner wall of the inner filter separator is equipped with two upper baffles, and the bottom of the inner wall is equipped with one lower baffle. The lower baffle is located between the two upper baffles, and the two upper baffles are located between the air inlet connector and the vacuum extraction nozzle. Both the upper and lower baffles are semi-circular baffles.

[0005] Preferably, one end of the discharge tank is connected to a discharge tank sealing plate by a clamp, and one end of the storage tank is connected to a storage tank sealing plate by a clamp.

[0006] Preferably, fluororubber sealing rings are installed at the connection between the discharge tank and the storage tank, the connection between the discharge tank and the discharge tank sealing plate, and the connection between the storage tank and the storage tank sealing plate.

[0007] Preferably, valves are provided on the air inlet connector, exhaust nozzle, and vacuum nozzle, and a 2-inch quick-change clamp is provided at the top of the air inlet connector.

[0008] Preferably, a transparent viewing window is embedded in the discharge tank sealing plate, and reinforcing support plates are fixedly connected to both ends of the inner filter separation cylinder.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] This utility model has an ingenious structure. By optimizing the exhaust method and structural design, it solves the problem of waste adhering and clogging the exhaust port in traditional exhaust devices. The device adopts a side-down exhaust design, which makes it easier for waste to be discharged in a natural state, reducing the risk of blockage. The quick-disassembly design facilitates internal cleaning or replacement, significantly reducing downtime and improving production efficiency. Attached Figure Description

[0011] Figure 1 is a three-dimensional structural diagram of the present invention;

[0012] Figure 2 is a schematic diagram of the assembly structure of this utility model;

[0013] Figure 3 is a schematic diagram of the front sectional view of the present invention as shown in Figure 1;

[0014] Figure 4 is a side view of the three-dimensional structure of this utility model.

[0015] In the diagram: 1. Discharge tank; 2. Storage tank; 3. Internal filter separator; 4. Discharge tank sealing plate; 4a. Transparent window; 5. Storage tank sealing plate; 6. Clamp; 7. Fluororubber sealing ring; 301. Air vent; 302. Reinforcing support plate; 3a. Upper baffle; 3b. Lower baffle; 101. Air inlet connector; 101a. 2-inch quick-change clamp; 102. Waste discharge nozzle; 201. Vacuum extraction nozzle. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0017] Please refer to Figures 1 to 4. This utility model provides the following technical solution: a side-down exhaust structure for a twin-screw extruder, comprising a discharge tank 1, a storage tank 2, and an inner filter separator 3. The discharge tank 1, storage tank 2, and inner filter separator 3 are all made of 304 stainless steel. One end of the discharge tank 1 and one end of the storage tank 2 are fixedly connected by a clamp 6. The discharge tank 1 has an air inlet connector 101 at the top and a waste discharge nozzle 102 at the bottom. The storage tank 2 has a vacuum extraction nozzle 201 at the top. The inner filter separator 3 is placed inside the discharge tank 1 and the storage tank 2, and has two air holes 301 at its top. A vent 301 is provided at the bottom, and two vents 301 at the top correspond to the positions of the air inlet connector 101 and the vacuum nozzle 201, respectively. The vent 301 at the bottom corresponds to the position of the exhaust nozzle 102. Baffles are provided inside the inner filter separator 3. Two upper baffles 3a are provided at the top of the inner wall of the inner filter separator 3, and a lower baffle 3b is provided at the bottom of the inner wall. The lower baffle 3b is located between the two upper baffles 3a. The two upper baffles 3a are located between the air inlet connector 101 and the vacuum nozzle 201. Both the upper baffles 3a and the lower baffle 3b are semi-circular baffles.

[0018] Furthermore, one end of the discharge tank 1 is connected to the discharge tank sealing plate 4 via a clamp 6, and one end of the storage tank 2 is connected to the storage tank sealing plate 5 via a clamp 6.

[0019] Furthermore, fluororubber sealing rings 7 are installed at the connection between the discharge tank 1 and the storage tank 2, the connection between the discharge tank 1 and the discharge tank sealing plate 4, and the connection between the storage tank 2 and the storage tank sealing plate 5.

[0020] Furthermore, valves are provided on the air inlet connector 101, the exhaust nozzle 102, and the vacuum extraction nozzle 201. The valves are 2-inch ball valves, and a 2-inch quick-change clamp 101a is provided at the top of the air inlet connector 101.

[0021] Furthermore, a transparent window 4a is embedded in the discharge tank sealing plate 4, and the transparent window 4a is made of PMMA acrylic organic glass.

[0022] Reinforcing support plates 302 are fixedly connected to both ends of the internal filter separation cylinder 3.

[0023] The working process of this utility model is as follows:

[0024] As shown in Figures 1-4, when using the device, a 2-inch quick-change clamp 101a is used to install the device on the exhaust connector of the twin-screw extruder. When needed, the vacuum nozzle 201 can be connected to the vacuuming end of the vacuuming equipment. When the valve of the vacuum nozzle 201 is closed, the devolatile water vapor and other substances generated by the extruder enter through the air inlet 101 with the gas, and the wastewater and waste can be discharged through the waste outlet 102. When the valve of the vacuum nozzle 201 is open and the valve of the waste outlet 102 is closed, the gas enters through the air inlet 101, and the waste is collected in the inner filter separator 3 after impacting the upper baffle 3a and the lower baffle 3b with the gas. The waste storage in the inner filter separator 3 can be observed through the transparent window 4a. If there is a lot of waste stored, the storage tank sealing plate 5 can be separated from the storage tank 2, and the inner filter separator 3 can be taken out for cleaning.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A side-down exhaust structure for a twin-screw extruder, characterized in that: The system includes a discharge tank (1), a storage tank (2), and an internal filter separator (3). One end of the discharge tank (1) and one end of the storage tank (2) are fixedly connected by a clamp (6). The discharge tank (1) is provided with an air inlet connector (101) at the top and a waste discharge nozzle (102) at the bottom. The storage tank (2) is provided with a vacuum extraction nozzle (201) at the top. The internal filter separator (3) is placed inside the discharge tank (1) and the storage tank (2). It has two air holes (301) at the top and one air hole (301) at the bottom. The two air holes (301) at the top correspond to the positions of the air inlet connector (101) and the vacuum extraction nozzle (201) respectively. The air hole (301) at the bottom corresponds to the position of the waste discharge nozzle (102). The internal filter separator (3) is provided with a baffle plate.

2. The side-down exhaust structure of the twin-screw extruder according to claim 1, characterized in that: The inner wall of the inner filter separator (3) is provided with two upper baffles (3a) at the top and a lower baffle (3b) at the bottom. The lower baffle (3b) is located between the two upper baffles (3a). The two upper baffles (3a) are located between the air inlet connector (101) and the vacuum nozzle (201). Both the upper baffles (3a) and the lower baffle (3b) are semi-circular baffles.

3. The side-down exhaust structure of the twin-screw extruder according to claim 1, characterized in that: One end of the discharge tank (1) is connected to the discharge tank sealing plate (4) by a clamp (6), and one end of the storage tank (2) is connected to the storage tank sealing plate (5) by a clamp (6).

4. The side-down exhaust structure of the twin-screw extruder according to claim 1, characterized in that: Fluororubber sealing rings (7) are installed at the connection between the discharge tank (1) and the storage tank (2), the connection between the discharge tank (1) and the discharge tank sealing plate (4), and the connection between the storage tank (2) and the storage tank sealing plate (5).

5. The side-down exhaust structure for a twin-screw extruder according to claim 1, characterized in that: Valves are provided on the air inlet connector (101), the exhaust nozzle (102) and the vacuum nozzle (201), and a 2-inch quick-change clamp (101a) is provided at the top of the air inlet connector (101).

6. The side-down exhaust structure of the twin-screw extruder according to claim 3, characterized in that: A transparent window (4a) is embedded in the discharge tank sealing plate (4), and reinforcing support plates (302) are fixedly connected to both ends of the inner filter separation cylinder (3).

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