Extruder exhaust device

Abstract

An exhaust device of an extruder comprises an extruder cylinder, a nitrogen purging pipeline is arranged on the extruder cylinder, and the other end of the nitrogen purging pipeline is connected into a nitrogen purging device; an exhaust pipe is arranged on one side of the extruder barrel, one end of the exhaust pipe is connected with an uncooled waste gas pipeline, an outlet flexible connector is arranged on the uncooled waste gas pipeline, a cooled waste gas discharging pipeline is arranged on one side of the outlet flexible connector, one end of the cooled waste gas discharging pipeline is connected with one side of an exhaust condenser, and the other end of the cooled waste gas discharging pipeline is connected with a cooling fan. One side of the bottom of the exhaust condenser is connected with a circulating system access pipeline, and the circulating system access pipeline is connected with a circulating water system; the device can reduce the system cleaning frequency and simplify cleaning, can reduce the system cleaning frequency, can simplify the cleaning process, can shorten the single cleaning time, can reduce the labor intensity of personnel, can stabilize the operation of a unit, can prolong the service life, and can improve the production efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of extruders, and specifically relates to an exhaust device for an extruder. Background Art

[0002] During the working process of the workshop extruder, part of the nitrogen gas enters the unit cylinder body. Due to the influence of the gas on the product quality and smell, a gas discharge structure is provided in the unit cylinder body to cool the gas and then discharge it to the atmosphere, so as to remove the gas entrained in the material in the cylinder body. In the prior art, during the gas removal process, the gas discharge port is easily blocked, resulting in insufficient gas removal from the material, affecting the stable operation of the unit; and it is easy to form material accumulation and backflow at the gas outlet, polluting the finished product and causing unqualified quality; the blockage is frequent, the cleaning is difficult, the frequency of manual cleaning is increased, the working space is narrow, and the safety cannot be guaranteed.

[0003] Therefore, it is necessary to design an exhaust device for an extruder, which can reduce the frequency of system cleaning, simplify the cleaning process, shorten the single cleaning time, reduce the labor intensity of personnel, stabilize the operation of the unit, increase the service life, and improve the production efficiency. Summary of the Invention

[0004] An exhaust device for an extruder can reduce the frequency of system cleaning, simplify the cleaning process, shorten the single cleaning time, reduce the labor intensity of personnel, stabilize the operation of the unit, increase the service life, and improve the production efficiency.

[0005] An exhaust device for an extruder includes an extruder cylinder body, wherein:

[0006] A nitrogen purge pipeline is provided on the extruder cylinder body, and the other end of the nitrogen purge pipeline is connected to a nitrogen purge device;

[0007] One side of the extruder cylinder body is provided with an exhaust pipe, one end of the exhaust pipe is connected to an uncooled exhaust gas pipeline, an outlet flexible connection port is provided on the uncooled exhaust gas pipeline, a cooled exhaust gas pipeline is provided on one side of the outlet flexible connection port, one end of the cooled exhaust gas pipeline is connected to one side of an exhaust condenser, a circulating system access pipeline is connected to the bottom side of the exhaust condenser, and the circulating system access pipeline is connected to a circulating water system;

[0008] The other side of the bottom of the exhaust condenser is provided with a circulating water input pipeline, the other end of the circulating water input pipeline is connected to the circulating water system, one side of the top of the exhaust condenser is provided with a cooled exhaust gas pipeline, one end of the cooled exhaust gas pipeline is connected to a first liquid accumulation tank, a liquid accumulation tank connection pipeline is provided on the first liquid accumulation tank, the liquid accumulation tank connection pipeline is connected to a second liquid accumulation tank, a discharge pipeline is connected to the second liquid accumulation tank, and the other end of the discharge pipeline is connected to a discharge port.

[0009] Preferably, one end of the exhaust pipe inserted into the extruder barrel is needle-shaped, and a gas filter is provided at the other end where it is connected to the uncooled waste gas pipe.

[0010] Preferably, a temperature display is provided on the extruder barrel.

[0011] Preferably, a spare exhaust pipe is also provided on the exhaust cooling waste gas pipe, and one end of the spare exhaust pipe is connected to the discharge port.

[0012] Preferably, spare maintenance pipes are provided on both the discharge pipe and the cooling waste gas pipe.

[0013] Preferably, an automatic control valve is provided on the nitrogen purge pipe.

[0014] Preferably, a number of valves are provided on the nitrogen purge pipe, the uncooled waste gas pipe, the cooling waste gas pipe, the condensate tank connecting pipe, and the discharge pipe.

[0015] Preferably, a number of valves are provided on both the spare exhaust pipe and the spare maintenance pipe.

[0016] Preferably, an automatic control valve is provided on the nitrogen purge pipe.

[0017] The beneficial effects of the present utility model: An exhaust device for an extruder of the present utility model can effectively remove solid particles in the waste gas by setting a nitrogen purge pipe and a gas filter, and cool and condense the waste gas by using a cooling waste gas pipe and an exhaust condenser, greatly improving the efficiency of waste gas treatment. The spare exhaust pipe and the spare maintenance pipe improve the stability and emergency response ability of the system, ensuring that the system can still operate normally when the main pipe fails. The automatic control valve on the nitrogen purge pipe can achieve automated waste gas cleaning, reducing the complexity of manual operation and improving the intelligent level of the system. The design of multiple valves and spare pipes in the system makes maintenance work more convenient, reducing maintenance time and cost, while enhancing the reliability of the system. The setting of the temperature display can monitor the temperature of the extruder barrel in real time, prevent overheating, improve the safety and long-term stability of the equipment. It improves the service life of the equipment, reduces the cost of equipment maintenance and replacement, and greatly enhances its practical value. Description of the Drawings

[0018] Figure 1 It is a schematic diagram of an exhaust device for an extruder of the present utility model.

[0019] In the figure: extruder barrel 1, nitrogen purge pipeline 2, nitrogen purge device 3, exhaust pipe 4, uncooled waste gas pipeline 5, outlet flexible connection port 6, cooled waste gas discharge pipeline 7, exhaust condenser 8, circulating system access pipeline 9, circulating water system 10, circulating water input pipeline 11, cooled waste gas pipeline 12, first liquid accumulation tank 13, liquid accumulation tank connecting pipeline 14, second liquid accumulation tank 15, discharge pipeline 16, discharge port 17, spare maintenance pipeline 18, temperature display 19, automatic control valve 20, spare exhaust pipeline 21. Detailed implementation mode

[0020] In order to make the technical solution of the present utility model easier to understand, the technical solution of the present utility model will be clearly and completely described below by way of specific embodiments in conjunction with the accompanying drawings.

[0021] Embodiment 1:

[0022] As Figure 1 shown, the Figure 1 exhaust device of an extruder of the present utility model in this embodiment includes an extruder barrel 1, wherein:

[0023] A nitrogen purge pipeline 2 is provided on the extruder barrel 1, and the other end of the nitrogen purge pipeline 2 is connected to a nitrogen purge device 3;

[0024] An exhaust pipe 4 is provided on one side of the extruder barrel 1. One end of the exhaust pipe 4 is connected to an uncooled waste gas pipeline 5. An outlet flexible connection port 6 is provided on the uncooled waste gas pipeline 5. A cooled waste gas discharge pipeline 7 is provided on one side of the outlet flexible connection port 6. One end of the cooled waste gas discharge pipeline 7 is connected to one side of an exhaust condenser 8. One side at the bottom of the exhaust condenser 8 is connected to a circulating system access pipeline 9, and the circulating system access pipeline 9 is connected to a circulating water system 10;

[0025] The other side at the bottom of the exhaust condenser 8 is provided with a circulating water input pipeline 11. The other end of the circulating water input pipeline 11 is connected to the circulating water system 10. One side at the top of the exhaust condenser 8 is provided with a cooled waste gas pipeline 12. One end of the cooled waste gas pipeline 12 is connected to a first liquid accumulation tank 13. A liquid accumulation tank connecting pipeline 14 is provided on the first liquid accumulation tank 13. The liquid accumulation tank connecting pipeline 14 is connected to a second liquid accumulation tank 15. A discharge pipeline 16 is connected to the second liquid accumulation tank 15, and the other end of the discharge pipeline 16 is connected to a discharge port 17.

[0026] One end of the exhaust pipe 4 inserted into the extruder barrel 1 is needle-shaped, and a gas filter is provided at the other end where it is connected to the uncooled waste gas pipeline 5.

[0027] A temperature display 19 is provided on the extruder barrel 1.

[0028] The exhaust cooling gas pipeline 7 is also provided with a standby exhaust pipeline 21, and one end of the standby exhaust pipeline 21 is connected to the discharge port 17.

[0029] The discharge pipeline 16 and the exhaust cooling gas pipeline 12 are both provided with standby maintenance pipelines 18.

[0030] The nitrogen purge pipeline 2 is provided with an automatic control valve.

[0031] The nitrogen purge pipeline 2, the uncooled exhaust gas pipeline 5, the exhaust cooling gas pipeline 12, the liquid accumulation tank connecting pipeline 14 and the discharge pipeline 16 are all provided with a number of valves.

[0032] The standby exhaust pipeline 21 and the standby maintenance pipeline 18 are both provided with a number of valves.

[0033] The nitrogen purge pipeline 2 is provided with an automatic control valve 20.

[0034] During the use of this device, the nitrogen purge pipeline 2 is provided on the extruder barrel 1, and the other end of the nitrogen purge pipeline 2 is connected to the nitrogen purge device 3, which is used to provide nitrogen to help clean the gas in the system.

[0035] On one side of the extruder barrel 1, one end is needle-shaped for easy insertion into the barrel, and the other end is connected to the uncooled exhaust gas pipeline 5. The uncooled exhaust gas pipeline 5 is provided with a gas filter to remove solid particles.

[0036] The exhaust condenser 8 is provided with an exhaust cooling gas pipeline 12. One end of the exhaust cooling gas pipeline 12 is connected to the first liquid accumulation tank 13. The first liquid accumulation tank 13 is connected to the second liquid accumulation tank 15 through the liquid accumulation tank connecting pipeline 14. The second liquid accumulation tank 15 discharges the waste liquid through the discharge pipeline 16. The first liquid accumulation tank 13 and the second liquid accumulation tank 15 are used to collect the liquid entrained in the gas and then regularly discharge it into the collection bucket. One side of the bottom of the exhaust condenser 8 is connected to the circulation system access pipeline 9, and this pipeline is connected to the circulating water system 10. The top of the exhaust condenser 8 is provided with a circulating water input pipeline 11, and the other end of which is also connected to the circulating water system 10 for cooling the exhaust gas.

[0037] The standby exhaust pipeline 21 is used to provide a standby exhaust path when the main exhaust pipeline fails. The standby maintenance pipeline 18 is provided on the discharge pipeline 16 and the exhaust cooling gas pipeline 12 to facilitate maintenance during maintenance. The automatic control valve 20 is provided on the nitrogen purge pipeline 2 to achieve automatic control and ensure the effective purging of nitrogen.

[0038] The temperature display 19 is provided on the extruder barrel 1 for real-time monitoring of the system temperature.

[0039] A number of valves are provided on the nitrogen purging pipeline 2, the uncooled waste gas pipeline 5, the cooled waste gas pipeline 12, the liquid accumulation tank connecting pipeline 14 and the discharge pipeline 16 to facilitate the adjustment and control of the gas flow rate of each part and the waste gas treatment process.

[0040] An exhaust pipe 4 is provided at the exhaust port of the extruder barrel 1, and the extraction port is extended to the center of the system, so that the rising gas does not come into complete contact with the inner wall of the system. The material entrained in the rising gas naturally settles during the rising process and does not contact and solidify with the inner wall of the extruder barrel 1, thereby achieving the purpose of reducing the system cleaning frequency, simplifying the cleaning method, shortening the single cleaning time, reducing the labor intensity of personnel, and stabilizing the operation of the unit.

[0041] It should be noted that the embodiments described herein are only partial embodiments of the present invention, rather than all implementation manners of the present invention. The embodiments are only exemplary, and their functions are only to provide a more intuitive and clear way to understand the content of the present invention, rather than a limitation on the technical solutions described in the present invention. Without departing from the concept of the present invention, all other implementation manners that can be thought of by those of ordinary skill in the art without creative work, as well as other simple replacements and various changes to the technical solutions of the present invention, all belong to the protection scope of the present invention.

Claims

1. An exhaust device for an extruder, characterized in that, including, an extruder barrel (1), wherein: a nitrogen purging pipeline (2) is provided on the extruder barrel (1), and the other end of the nitrogen purging pipeline (2) is connected to a nitrogen purging device (3); an exhaust pipe (4) is provided on one side of the extruder barrel (1), one end of the exhaust pipe (4) is connected to an uncooled exhaust gas pipeline (5), an outlet flexible connection port (6) is provided on the uncooled exhaust gas pipeline (5), a discharged cooled exhaust gas pipeline (7) is provided on one side of the outlet flexible connection port (6), one end of the discharged cooled exhaust gas pipeline (7) is connected to one side of an exhaust condenser (8), a circulation system access pipeline (9) is connected to the bottom side of the exhaust condenser (8), and the circulation system access pipeline (9) is connected to a circulating water system (10); a circulating water input pipeline (11) is provided on the other bottom side of the exhaust condenser (8), the other end of the circulating water input pipeline (11) is connected to the circulating water system (10), a cooled exhaust gas pipeline (12) is provided on one top side of the exhaust condenser (8), one end of the cooled exhaust gas pipeline (12) is connected to a first liquid accumulation tank (13), a liquid accumulation tank communication pipeline (14) is provided on the first liquid accumulation tank (13), the liquid accumulation tank communication pipeline (14) is connected to a second liquid accumulation tank (15), a discharge pipeline (16) is connected to the second liquid accumulation tank (15), and the other end of the discharge pipeline (16) is connected to a discharge port (17).

2. The exhaust device of an extruder according to claim 1, wherein, One end of the exhaust pipe (4) inserted into the extruder barrel (1) is needle-shaped, and a gas filter is provided at the other end where it is connected to the uncooled exhaust gas pipeline (5).

3. The exhaust device of an extruder according to claim 2, wherein, a temperature display (19) is provided on the extruder barrel (1).

4. The exhaust device of an extruder according to claim 1, characterized in that, a standby exhaust pipeline (21) is further provided on the discharged cooled exhaust gas pipeline (7), and one end of the standby exhaust pipeline (21) is connected to the discharge port (17).

5. An exhaust device for an extruder according to claim 1, characterized in that, standby maintenance pipelines (18) are provided on both the discharge pipeline (16) and the cooled exhaust gas pipeline (12).

6. The exhaust device of an extruder according to claim 1, characterized in that, an automatic control valve is provided on the nitrogen purging pipeline (2).

7. An exhaust device for an extruder according to claim 1, characterized in that a number of valves are provided on each of the nitrogen purging pipeline (2), the uncooled exhaust gas pipeline (5), the cooled exhaust gas pipeline (12), the liquid accumulation tank communication pipeline (14), and the discharge pipeline (16).

8. The exhaust device of an extruder according to claim 4, characterized in that, a number of exhaust pipeline valves are provided on the standby exhaust pipeline (21).

9. The exhaust device of an extruder according to claim 1, wherein, an automatic control valve (20) is provided on the nitrogen purging pipeline (2).

10. An extruder exhaust device according to claim 5, characterized in that, a number of maintenance pipeline valves are provided on the standby maintenance pipeline (18).

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