A condensing device for an internal mixer

Abstract

The utility model belongs to the technical field of internal mixer auxiliary equipment, especially relates to the condensing device of internal mixer, is located at the exhaust port of internal mixer, including condensing assembly, gas pressure control assembly and gas purification assembly, condensing assembly is located above the exhaust port, both ends are equipped with air intake, air outlet respectively, its bottom is equipped with the return pipe, the other end of return pipe communicates internal mixer, air intake and the exhaust port of internal mixer seal connection are used for carrying out condensing treatment to the gas of internal mixer volatilization, and the one end of gas purification assembly connects the air outlet, and one end communicates outside, gas pressure control assembly is located between the air outlet and gas purification assembly, is used for real -time monitoring and automatically adjusting the internal gas pressure of internal mixer. Gas condensation backflow effectively guarantees the accuracy of proportioning, improves finished product quality. The pressure of internal mixer is detected and adjusted by gas pressure control assembly, reduces the risk of cylinder explosion. The concentration of gas chemical composition after condensation backflow reduces, reduces harmful gas emission after gas purification assembly, improves the working environment.

Description

Technical Field

[0001] This utility model belongs to the technical field of auxiliary equipment for internal mixers, and particularly relates to a condensation device for an internal mixer. Background Technology

[0002] Internal mixers are key pieces of equipment in the rubber and plastics products industry, used for high-temperature mixing and shearing of various materials. During the mixing process, small-molecule additives are typically added to improve processing efficiency and finished product performance. However, during operation, due to the high temperature and pressure, some small-molecule additives (such as vulcanizing agents, accelerators, and plasticizers) are prone to volatilization, especially flammable and explosive liquid additives like condensed silazane, which can lead to several problems. First, incomplete material reaction occurs; the volatilized small-molecule additives disrupt the actual material ratios involved in the reaction, destroying the preset formula proportions and affecting the quality and performance of the final product. Second, the risk of cylinder explosion increases; volatile gases accumulate in the mixing chamber, causing significant pressure fluctuations. When the pressure exceeds the mixer's limits, it may trigger an explosion, resulting in equipment damage and threatening the personal safety of operators. Third, the working environment deteriorates; volatile gases contain irritating chemical components, polluting the workshop environment. The pungent odor reduces the comfort of the workshop, and long-term exposure can damage the respiratory system and skin health of operators.

[0003] Currently, some internal mixers use simple exhaust devices that directly treat the exhaust gases emitted by the mixer before discharging them into the external environment. This method places high demands on the exhaust device's gas treatment capacity, fails to recover effective components, leads to material waste, and causes inaccurate material ratios that affect the performance of the final product. Furthermore, it cannot reduce pressure fluctuations within the internal mixer, stabilize the pressure, and still poses a risk of cylinder explosion. Utility Model Content

[0004] The purpose of this utility model is to provide a condensation device for an internal mixer, which solves the problems of easy volatilization of materials during high-temperature and high-pressure mixing in existing internal mixers, leading to imbalance in the proportion of the mixture and affecting the performance of the final product, as well as the risk of cylinder explosion caused by the accumulation of volatilized gas inside the internal mixer.

[0005] To achieve the above objectives, this utility model provides a condensation device for an internal mixer, located at the exhaust port of the internal mixer. It includes a condensation component, a pressure control component, and a gas purification component. The condensation component is located above the exhaust port, with an inlet and an outlet at each end, and a return pipe at its bottom. The other end of the return pipe connects to the interior of the internal mixer. The inlet is sealed to the exhaust port of the internal mixer for condensing the gases volatilized by the internal mixer. One end of the gas purification component is connected to the outlet, and the other end connects to the outside. The pressure control component is located between the outlet and the gas purification component for real-time monitoring and automatic adjustment of the internal pressure of the internal mixer.

[0006] Furthermore, the condensation assembly includes a fluid pipe, a cooling medium pipe, and a cooler. The air outlet and air inlet are respectively located at both ends of the fluid pipe. The return pipe is located at the bottom of the fluid pipe. The air inlet is sealed to the exhaust port via a flange. The cooling medium pipe is located inside the fluid pipe and has an inlet pipe and an outlet pipe extending outside the fluid pipe. The inlet pipe is located on the side of the fluid pipe closer to the air inlet, and the outlet pipe is located on the side of the fluid pipe closer to the air outlet. The cooler is located outside the fluid pipe, and its output end and input end are respectively connected to the inlet pipe and the outlet pipe for continuously supplying cooling medium to the inlet pipe.

[0007] Furthermore, the cooling medium pipes are arranged in a spiral or serpentine structure within the fluid pipes.

[0008] Furthermore, the cooling medium is circulating cooling water, and the cooling machine is equipped with a temperature control module to control the temperature of the circulating cooling water input into the liquid inlet pipe, and the water temperature control range is 10℃~30℃.

[0009] Furthermore, the fluid pipe and cooling medium pipe are made of stainless steel.

[0010] Furthermore, the air pressure control component includes an air pressure balancing valve and a pressure sensor. The air pressure balancing valve is located on the air outlet, and the pressure sensor is located inside the air pressure balancing valve. It is used to monitor the internal air pressure of the internal mixer in real time, so that the air pressure balancing valve can automatically adjust the internal pressure of the internal mixer.

[0011] Furthermore, the air pressure control component also includes an alarm, which is electrically connected to the pressure sensor; an emergency button is provided on the outside of the air pressure balance valve.

[0012] Furthermore, the gas purification component includes a filter section and an exhaust pipe. One end of the exhaust pipe is connected to the end of the gas pressure control component away from the condenser component, and the other end is provided with an exhaust port communicating with the outside. The exhaust pipe is provided with a filter section for adsorbing uncondensed gas before discharging it.

[0013] Furthermore, the filtration section is an activated carbon adsorption layer, and a gas detector is provided at the discharge port to monitor the concentration of the gas emitted from the discharge port in real time.

[0014] Furthermore, a one-way valve is provided on the reflux pipe to prevent material from flowing back into the internal mixer.

[0015] The above-mentioned one or more technical solutions in the condensation device of the internal mixer provided in this embodiment of the utility model have at least the following technical effects: When internal mixers process polymer materials such as rubber and plastics, the high temperature and pressure cause some small-molecule additives to volatilize and form gases, which are then discharged through the exhaust port. These gases subsequently enter the condensation unit, where they are cooled and liquefied again. The liquid then returns to the internal mixer through the reflux pipe to continue participating in the reaction, reducing the loss of small-molecule additives, effectively ensuring the accuracy of the formulation, and thus improving the quality of the finished product. Uncondensed residual gas exits through the gas outlet, passes through the gas pressure control unit, and is ultimately adsorbed and treated by the gas purification unit before being discharged into the external environment.

[0016] The pressure control component monitors the internal pressure of the internal mixer in real time and automatically releases pressure when it exceeds a set threshold, preventing the risk of cylinder explosion due to excessive pressure and improving the safety and reliability of the internal mixer's operation. Furthermore, after condensation and reflux, the overall temperature of the remaining gas significantly decreases, helping to protect the subsequent pressure control and gas purification components and reducing equipment wear caused by high temperatures. Simultaneously, the concentration of chemical components in the gas is greatly reduced, mitigating the risk of corrosion and contamination to subsequent components and improving their stability and service life. The remaining gas undergoes further purification, further reducing the concentration of chemical components in the exhaust gas. This reduces the purification load on the gas purification components, simplifies gas treatment, and effectively reduces harmful gas emissions to the workshop and external environment, improving the working environment and ensuring the health and safety of operators and production. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the condensation device of the internal mixer provided in this embodiment of the utility model.

[0019] Figure 2 This is a structural diagram of the internal mixer provided in an embodiment of the present utility model.

[0020] Figure 3 A structural diagram of the condensation assembly of the internal mixer provided in an embodiment of this utility model.

[0021] Figure 4 A partial cross-sectional view of the condensation assembly of the internal mixer provided in an embodiment of this utility model.

[0022] Figure 5 This is a structural diagram of the gas purification component of the internal mixer provided in an embodiment of the present invention.

[0023] In the diagram, 100 is the condenser assembly, 110 is the air inlet, 120 is the air outlet, 130 is the fluid pipe, 140 is the cooling medium pipe, 141 is the liquid inlet pipe, 142 is the liquid outlet pipe, 150 is the cooler, 160 is the return pipe, and 161 is the check valve. 200. Air pressure control component; 210. Air pressure balancing valve; 211. Emergency button; 220. Alarm. 300. Gas purification assembly; 310. Filter unit; 320. Exhaust pipe. 400. Internal mixer; 410. Exhaust port. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of this utility model, and should not be construed as limiting the utility model.

[0025] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0028] In one embodiment of the condensation device of the internal mixer of this utility model, please refer to... Figures 1 to 5 The condensation device of the internal mixer is located at the exhaust port 410 of the internal mixer and includes a condensation component 100, a pressure control component 200, and a gas purification component 300. The condensation component 100 is located above the exhaust port 410, with an inlet 110 and an outlet 120 at each end, and a return pipe 160 at the bottom. The other end of the return pipe 160 is connected to the inside of the internal mixer. The inlet 110 is sealed to the exhaust port 410 of the internal mixer and is used to condense the gas volatilized by the internal mixer 400. One end of the gas purification component 200 is connected to the outlet 120, and the other end is connected to the outside. The pressure control component 200 is located between the outlet 120 and the gas purification component 300 and is used to monitor and automatically adjust the internal pressure of the internal mixer 400 in real time.

[0029] Specifically, during the internal mixer 400's internal mixing of polymer materials such as rubber and plastics, due to the high temperature and pressure, some small-molecule additives will volatilize and form gas, which is discharged through the exhaust port 410. The gas then enters the condenser assembly 100, where it is liquefied again under the cooling effect of the condenser assembly 100. The liquid returns to the internal mixer 400 through the return pipe 160 to continue participating in the reaction, reducing the loss of small-molecule additives, effectively ensuring the accuracy of the proportions, and thus improving the quality of the mixed product. The uncondensed residual gas passes through the gas outlet 120 via the gas pressure control assembly 200, and is finally adsorbed and treated by the gas purification assembly 300 before being discharged into the external environment.

[0030] The pressure control component 200 can monitor the internal pressure of the internal mixer 400 in real time and automatically release pressure when it exceeds a set threshold, avoiding the risk of cylinder explosion due to excessive pressure and improving the safety and reliability of the internal mixer 400 operation. In addition, after condensation and reflux, the overall temperature of the remaining gas decreases significantly, helping to protect the subsequent pressure control component 200 and gas purification component 300, reducing equipment wear caused by high temperatures. Simultaneously, the concentration of chemical components in the gas is also greatly reduced, mitigating the risk of corrosion and contamination to subsequent components and improving their stability and service life. The remaining gas is further purified, reducing the concentration of chemical components in the exhaust gas. This reduces the purification load on the gas purification component 300, lowers the difficulty of gas treatment, and effectively reduces harmful gas emissions to the workshop and external environment, improving the working environment and ensuring the health and safety of operators and production. For further details, please refer to... Figure 3 The condenser assembly 100 includes a fluid pipe 130, a cooling medium pipe 140, and a cooler 150. An outlet 120 and an inlet 110 are respectively located at both ends of the fluid pipe 130. A return pipe 160 is provided at the bottom of the fluid pipe 130. The inlet 110 is sealed to the exhaust port 410 through a flange. The cooling medium pipe 140 is located inside the fluid pipe 130 and has an inlet pipe 141 and an outlet pipe 142 extending out of the fluid pipe 130. The inlet pipe 141 is located on the side of the fluid pipe 130 near the inlet 110, and the outlet pipe 142 is located on the side of the fluid pipe 130 near the outlet 120. The cooler 150 is located outside the fluid pipe 130, and its output end and input end are respectively connected to the inlet pipe 141 and the outlet pipe 142 for continuously supplying cooling medium to the inlet pipe 141.

[0031] Specifically, during the operation of the internal mixer 400, the cooler 150 continuously supplies cooling medium to the inlet pipe 141. After the cooling medium flows into the cooling medium pipe 140 located inside the fluid pipe, it returns to the cooler 150 through the outlet pipe 142. After being cooled by the cooler 150, it re-enters the inlet pipe 141, realizing the recycling of the cooling medium and effectively reducing the consumption of the medium and operating costs during the cooling process.

[0032] Preferably, please refer to Figure 4The cooling medium pipe 140 is arranged in a spiral or serpentine structure within the fluid pipe 130. Specifically, the spiral or serpentine structure effectively increases the volume of the cooling medium pipe 140 within the fluid pipe 130, increases the heat exchange contact area between the high-temperature gas and the cooling medium pipe 140, and the spiral or serpentine bends can disrupt the gas's movement direction, prolonging the gas's residence time within the fluid pipe, ensuring sufficient contact between the gas and the surface of the cooling medium pipe 140, resulting in a more uniform condensation effect and thus improving condensation efficiency. This achieves better heat exchange efficiency within a limited space, increases the recovery rate after material volatilization, and reduces the purification load on the gas purification component 300.

[0033] Furthermore, the cooling medium is circulating cooling water, and the cooler 150 is equipped with a temperature control module to control the temperature of the circulating cooling water entering the inlet pipe 141, with a temperature control range of 10℃ to 30℃. Specifically, The cooler 150 precisely controls the temperature of the cooling water flowing into the cooling medium pipe 140, enabling the condenser assembly 100 to flexibly adapt to the volatility characteristics of different materials. By adjusting the temperature of the cooling water, the cooling load of the cooler 150 itself can be reduced while meeting the condensation requirements, thereby reducing energy consumption and operating losses.

[0034] Furthermore, the fluid pipe 130 and the cooling medium pipe 140 are made of stainless steel. Specifically, stainless steel has excellent corrosion resistance, high temperature resistance, and high strength properties. It is not easily damaged by contact with chemical components, reducing maintenance requirements and extending the service life of the condenser assembly 100.

[0035] Further, please refer to Figure 1 The outlet 120 of the fluid pipe is sealed and connected to the pressure control assembly 200 via a flange. The inlet 110 of the fluid pipe is sealed and connected to the exhaust port 410 via a flange. The flange connection allows for quick disassembly, facilitating replacement and cleaning of the fluid pipe 130 and the internal cooling medium pipe 140, effectively removing chemical residues adhering to the surface and extending the service life of the condenser assembly 100.

[0036] Please refer to Figure 1The air pressure control component 200 includes an air pressure balancing valve 210 and a pressure sensor. The air pressure balancing valve 210 is located on the air outlet 120, and the pressure sensor is located inside the air pressure balancing valve 210. It is used to monitor the internal air pressure of the internal mixer 400 in real time, enabling the air pressure balancing valve 210 to automatically adjust the internal pressure of the internal mixer 400. Specifically, the pressure sensor can monitor the internal air pressure of the internal mixer in real time and accurately. When the detected pressure exceeds a set threshold, the sensor immediately sends a signal to the air pressure balancing valve 210, triggering it to automatically open and release pressure, thereby ensuring that the internal pressure of the internal mixer 400 quickly returns to stability. The air pressure control component 200 can automatically adjust the internal and external air pressure difference, effectively preventing equipment damage or safety accidents caused by overpressure, and ensuring the safe and reliable operation of the internal mixing process.

[0037] For further details, please refer to... Figure 1 The air pressure control component 200 also includes an alarm 220, which is electrically connected to the pressure sensor; an emergency button 211 is located on the outside of the air pressure balancing valve 210. Specifically, when the pressure sensor detects that the internal pressure of the internal mixer 400 exceeds a set threshold, the alarm 220 will be triggered to issue an audible and visual warning, prompting the operator to closely monitor the pressure relief status. If the air pressure balancing valve 210 malfunctions and cannot automatically relieve pressure, the operator can immediately manually trigger the emergency button 211 to perform a pressure relief operation. This dual protection mechanism combining automatic and manual operation enhances the safety of equipment operation.

[0038] Please refer to Figure 1 and Figure 5 The gas purification component 300 includes a filter section 310 and an exhaust pipe 320. One end of the exhaust pipe 320 is connected to the end of the pressure control component 200 away from the condenser component, and the other end has an exhaust port communicating with the outside. The filter section 310 is installed inside the exhaust pipe 320 to adsorb uncondensed gas before it is discharged. Specifically, after being processed by the condenser component 100, the uncondensed gas passes through the pressure balance valve 210 and then undergoes adsorption treatment by the filter section 310 before being discharged as highly purified gas from the exhaust port, effectively reducing odors and improving the working environment.

[0039] Furthermore, the filter section 310 is an activated carbon adsorption layer, and a gas detector is installed at the discharge port to monitor the concentration of the emitted gas in real time. Specifically, the chemical components of the uncondensed gas are adsorbed and deeply filtered by the activated carbon adsorption layer before being discharged, effectively improving the cleanliness of the gas and the working environment. The gas detector monitors the concentration of chemical components in the discharge port in real time, and once it exceeds the set threshold, it reminds the operator to replace the filter section 310, thereby ensuring emission safety and improving treatment efficiency.

[0040] Please refer to Figure 1A one-way valve 161 is installed on the return pipe 160 to prevent backflow of material within the internal mixer 400. Specifically, during operation, the high internal pressure of the internal mixer 400 may cause the material to flow backward into the return pipe 160 and into the condenser assembly 100, leading to contamination and blockage, and affecting the finished product. The one-way valve 321 prevents backflow of material and ensures unidirectional flow of the condensate.

[0041] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A condensation device for an internal mixer, located at the exhaust port of the internal mixer, characterized in that, The system includes a condensation component, a pressure control component, and a gas purification component. The condensation component is located above the exhaust port and has an inlet and an outlet at each end. A return pipe is located at its bottom, with the other end of the return pipe connected to the interior of the internal mixer. The inlet is sealed to the exhaust port of the internal mixer and is used to condense the gas volatilized from the internal mixer. One end of the gas purification component is connected to the outlet, and the other end is connected to the outside. The pressure control component is located between the outlet and the gas purification component and is used to monitor and automatically adjust the internal pressure of the internal mixer in real time.

2. The condensation device of the internal mixer according to claim 1, characterized in that: The condensation assembly includes a fluid pipe, a cooling medium pipe, and a cooler. The air outlet and air inlet are respectively located at both ends of the fluid pipe. The return pipe is located at the bottom of the fluid pipe. The air inlet is sealed to the exhaust port via a flange. The cooling medium pipe is located inside the fluid pipe and has an inlet pipe and an outlet pipe extending outside the fluid pipe. The inlet pipe is located on the side of the fluid pipe closer to the air inlet, and the outlet pipe is located on the side of the fluid pipe closer to the air outlet. The cooler is located outside the fluid pipe, and its output end and input end are respectively connected to the inlet pipe and the outlet pipe for continuously supplying cooling medium to the inlet pipe.

3. The condensation device of the internal mixer according to claim 2, characterized in that: The cooling medium pipes are arranged in a spiral or serpentine structure within the fluid pipes.

4. The condensation device of the internal mixer according to claim 2, characterized in that: The cooling medium is circulating cooling water. The cooling machine is equipped with a temperature control module to control the temperature of the circulating cooling water input into the inlet pipe, and the water temperature control range is 10℃~30℃.

5. The condensation device of the internal mixer according to claim 2, characterized in that: The fluid pipe and cooling medium pipe are made of stainless steel.

6. The condensation device of the internal mixer according to claim 1, characterized in that: The air pressure control component includes an air pressure balancing valve and a pressure sensor. The air pressure balancing valve is located at the air outlet, and the pressure sensor is located inside the air pressure balancing valve. It is used to monitor the internal air pressure of the internal mixer in real time, so that the air pressure balancing valve can automatically adjust the internal pressure of the internal mixer.

7. The condensation device of the internal mixer according to claim 6, characterized in that: The air pressure control component also includes an alarm, which is electrically connected to the pressure sensor; an emergency button is provided on the outside of the air pressure balance valve.

8. The condensation device of the internal mixer according to claim 1, characterized in that: The gas purification component includes a filter section and an exhaust pipe. One end of the exhaust pipe is connected to the end of the gas pressure control component away from the condenser component, and the other end is provided with an exhaust port communicating with the outside. The exhaust pipe is provided with a filter section for adsorbing uncondensed gas before it is discharged.

9. The condensation device of the internal mixer according to claim 8, characterized in that: The filter section is an activated carbon adsorption layer, and a gas detector is installed at the discharge port to monitor the concentration of the gas emitted from the discharge port in real time.

10. The condensation device of the internal mixer according to claim 1, characterized in that: The return pipe is equipped with a one-way valve to prevent material from flowing back into the internal mixer.

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