Blog_Wuxi Tengyu Environmental

2024-12

The price of internal mixers varies greatly depending on specifications, ranging from tens of thousands to hundreds of thousands of yuan. The price of small internal mixers varies depending on factors such as brand, model, specifications, and functions. Generally, small internal mixers have a capacity between 5L and 35L, and the price range can vary from a few thousand yuan to hundreds of thousands of yuan. For example, the price of a laboratory open mixing internal mixer is 85,000 yuan when the order quantity is ≥1; the price of a small laboratory closed-type rubber mixing machine (1L, 3L internal mixer) is between 88,000 and 83,000 yuan; the price of a 500g mixing internal mixer, a 1L small mixing internal mixer, and a 2L-3L small experimental internal mixer is between 72,800 and 70,800 yuan; the Jiangsu University experimental internal mixer price mentioned that the price of small laboratory internal mixers ranges from thousands to tens of thousands of yuan. Large internal mixers are relatively more expensive, generally ranging from hundreds of thousands to millions of yuan. The price of large internal mixers is affected by factors such as brand, specifications, materials, and configuration. Large equipment supplied by Wuxi Tengyu Environmental Protection Technology Co., Ltd. enjoys high recognition in the industry, with large-scale procurement from PetroChina, Sinopec, and BYD. The price varies due to different factors. The price of internal mixers on the market is affected by many factors, such as capacity and brand. The price of internal mixers is affected by many factors. In terms of capacity, small internal mixers such as 1L and 3L have smaller capacities and relatively lower prices; large internal mixers have large capacities, higher production capacity and efficiency, and higher prices. In terms of brand, internal mixers from well-known brands and large manufacturers tend to be more expensive, but the quality and service are also more guaranteed. For example, the price of internal mixers provided by Wuxi Tengyu Environmental Protection Technology Co., Ltd. varies depending on the brand, model, and configuration. In addition, the configuration, technology, and market supply and demand relationship of the internal mixer will also affect the price. Modern internal mixers are usually equipped with intelligent operation interfaces and automated control systems. These advanced configurations and technologies will increase equipment costs and thus push up prices. When market demand exceeds supply, prices may rise; conversely, when supply exceeds demand, prices may fall.

2024-12-13

2024-12

Internal Mixer

Two rotors rotate relatively, squeezing and shearing the material for efficient mixing. When the internal mixer is working, the two rotors rotate relatively, clamping and bringing the material into the roll gap, where the material is subjected to the squeezing and shearing action of the rotors. This strong force causes the material to continuously deform, achieving efficient mixing. As mentioned in "Internal Mixer (machinery used for rubber plastication and mixing) - Encyclopedia," the shearing action experienced by the material during mixing in an internal mixer is much greater than that of an open mixer, and the mixing temperature is higher, so the mixing efficiency of the internal mixer is much higher than that of the open mixer. The material undergoes complex movements in the internal mixer to achieve uniform mixing and plasticization. The material undergoes a complex movement process in the internal mixer to achieve uniform mixing and plasticization. On the one hand, the material is subjected to the squeezing, shearing, and stirring action between the elliptical rotor and the wall of the mixing chamber; the kneading and tearing action brought to the material by the relative rotation of the two rotors; the axial kneading and turning action between the rotors. As described in "Exercises and Answers of Plastic Molding Machinery (2)_word document online reading and downloading - Worry-free Document," the internal mixer uses the pressure of the upper top plug, the special shape of the rotor and the special movement changes formed by the mixing chamber wall, as well as the axial force, heating and plasticization generated by the rotor on the material, to promote the uniform mixing and plasticization of the material. On the other hand, the rubber in the internal mixer flows in different regions, realizing the exchange and mixing of the material. For example, in the transition area connecting the two halves of the mixing chamber, the rubber is squeezed by the pressure of the upper top plug on the one hand, and on the other hand, under the action of two rotors rotating at a certain speed ratio, it crosses this connecting transition area and enters behind the right (left) rotor under the action of the left (right) rotor ridge according to the different corresponding positions between the two rotors, realizing the flow and exchange of rubber in the two halves of the mixing chamber. At the same time, reasonable selection of the filling factor plays an important role in the rubber exchange of the two halves of the internal mixer.

2024-12-13

2024-12

Main uses of the kneader

Used for the mastication and mixing of natural rubber and other polymeric elastomers. A closed mill is a machine that uses a pair of rotors with specific shapes that rotate relative to each other to intermittently masticate and mix polymeric materials under adjustable temperature and pressure in a closed state. In the processing of natural rubber and other polymeric elastomers, the closed mill, through strong stirring and shearing action, ensures that the rubber material and compounding agents are fully mixed, improving the plasticity of the rubber material. For example, the main purpose of masticating rubber in a closed mill is to break the macromolecular chains under mechanical, thermal, and chemical actions, increasing plasticity to meet various process requirements in manufacturing, such as compounding agent mixing, calendering, pattern shape, molding, rubber flow, and adhesion. Widely used in the processing of rubber, plastic, and other materials, such as mixing, mastication, and extrusion. A closed-type rubber mill, or closed mill, is mainly used for the mastication and mixing of rubber, and is also used for mixing plastics, asphalt materials, felt materials, enamel materials, and various synthetic resin materials. The main functions of a closed mill include mixing, mastication, and extrusion processing. During the mixing process, the closed mill uses its internal stirrer and heating system to bond different types of rubber or plastic materials together, ensuring uniform material mixing. During the mastication process, the closed mill uses high-speed stirring and high-temperature heating to melt the raw materials and form a uniform mixture. During extrusion processing, the closed mill extrudes the plasticized material through the extrusion port to form the desired product. The application and role of closed mills in the rubber industry are specifically reflected in plasticization, mixing, calendering, cooling, and granulation, providing strong support for the preparation of high-performance rubber products. At the same time, closed mills also play an important role in the processing of plastics and other materials, ensuring uniform material mixing and complete plasticization through stirring, heating, and mechanical transmission, ultimately achieving product extrusion processing.

2024-12-13

2024-12

All about internal mixers! Learn about the magic of rubber mixing

I. What is an internal mixer? Internal mixers are important equipment for rubber plastication and mixing. The working principle and structure are revealed. An internal mixer is a machine that uses a pair of rotors with specific shapes and relative rotation to intermittently plasticize and mix polymer materials under adjustable temperature and pressure in a closed state. It mainly consists of a mixing chamber, rotors, rotor sealing device, feeding and pressing device, discharging device, transmission device and base. Working principle: When the internal mixer is working, the two rotors rotate relatively, clamping the material from the feeding port and bringing it into the roll gap. The material is squeezed and sheared by the rotors, and after passing through the roll gap, it hits the tip of the lower top plug and is divided into two parts, respectively flowing along the front and rear chamber walls and the gap between the rotor and returning to the upper part of the roll gap. In one cycle around the rotor, the material is subjected to shear and friction everywhere, causing the temperature of the rubber to rise sharply, the viscosity to decrease, and the wettability of the rubber on the surface of the compounding agent to increase, allowing the rubber to fully contact the surface of the compounding agent. The compounding agent lumps pass through the gap between the rotors, the gap between the rotors and the upper and lower top plugs, and the gap in the inner wall of the mixing chamber along with the rubber, and are broken by shearing, surrounded by stretched rubber, and stabilized in a broken state. At the same time, the convex ridges on the rotor cause the rubber to move along the axial direction of the rotor, playing a stirring and mixing role, so that the compounding agent is mixed evenly in the rubber. Closed-type rubber mixing machines, also known as Banbury mixers, play a key role in rubber processing. Since the appearance of the truly meaningful Banbury internal mixer in 1916, the power of the internal mixer has gradually been recognized. It shows a series of excellent characteristics compared to open mixers in the rubber mixing process, such as large mixing capacity, short time, high production efficiency; better overcoming dust flying, reducing the loss of compounding agents, improving product quality and working environment; safe and convenient operation, reducing labor intensity; beneficial to the realization of mechanical and automated operation, etc. Therefore, internal mixers are still typical and important equipment in plastication and mixing, and are constantly developing and improving.

2024-12-13

All about internal mixers! Learn about the magic of rubber mixing

2021-07

Correct operation and precautions for an open refining machine

The success of an open refining machine hinges on its use and maintenance. Good operating habits and process protection can significantly extend the machine's lifespan.

2021-07-26

2021-07

The rules before starting the calender must be followed one by one!

Correct operation of an open mill first requires adjusting the roll gap to maintain balance. If the roll gap adjustment is uneven at both ends, it will cause the rollers to be overloaded, easily damaging the equipment, which is strictly prohibited. After work, cut off the power and close the water and steam valves.

2021-07-26

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