The masterbatch granulator has a large space for use, and is characterized by being able to reduce the contamination and loss of the workshop caused by the rubber auxiliaries during the mixing with the raw rubber. Therefore, energy conservation and environmental protection into a new direction of the masterbatch granulator, and can be useful to improve the working environment of the workers inside the workshop, together to reduce the impact of the loss of powder additives on the formulation layout, reduce the rubber mixing moment, and then useful The cost of falling products.
In China, the masterbatch granulator is mostly used in a mixer with forced-side feeding single-screw extrusion granulation. The length-diameter ratio of the screw should be short and not long, because the rubber generates heat during the extrusion process, and the longer the screw The larger the friction coefficient, the lower the extrusion temperature, which is also a major problem in rubber masterbatch granulation.
Its biggest skill characteristic: the whole process of cold processing is used to prepare a new process, which has a lower processing temperature, can avoid the rubber auxiliaries from being melted and then recrystallized, and damage the original refined particle standard, which ensures the maximum limit in the formula planning. The characteristics of refining and solubilizing.
At present, the temperature control system of the domestic masterbatch granulator is divided into two types, one is the pipe wrap type, and the cooling system is connected to the cooling medium through the copper tube around the screw barrel. The other is only a jacket type, the cooling system is relatively independent, and the extrusion barrel is planned to be a jacketed hollow external cooling medium, which is more significant than the former temperature control.
The masterbatch granulator screw is designed and manufactured by the principle of building blocks. According to the processing material system and process formula, its aspect ratio, barrel structure, screw arrangement, screen changing structure, exhaust quantity and position, feeding mode, electrical control mode, etc. can be optimized and rationally configured. Achieve versatility and versatility to adapt to processing polymer materials. Make full use of limited space to design the latest involute spline form mandrel to ensure maximum load carrying capacity and achieve high torque transmission; threaded components with computer-aided design are meshed Conjugate type.
Valves are found in virtually every industrial process, including water and sewage processing, mining, power generation, processing of oil, gas and petroleum, food manufacturing, chemical and plastic manufacturing and many other fields.
People in developed nations use valves in their daily lives, including plumbing valves, such as taps for tap water, gas control valves on cookers, small valves fitted to washing machines and dishwashers, safety devices fitted to hot water systems, and poppet valves in car engines.
In nature there are valves, for example one-way valves in veins controlling the blood circulation, and heart valves controlling the flow of blood in the chambers of the heart and maintaining the correct pumping action.
Valves may be operated manually, either by a handle, lever, pedal or wheel. Valves may also be automatic, driven by changes in pressure, temperature, or flow. These changes may act upon a diaphragm or a piston which in turn activates the valve, examples of this type of valve found commonly are safety valves fitted to hot water systems or boilers.
More complex control systems using valves requiring automatic control based on an external input (i.e., regulating flow through a pipe to a changing set point) require an actuator. An actuator will stroke the valve depending on its input and set-up, allowing the valve to be positioned accurately, and allowing control over a variety of requirements.
Stop Valves, Ball Cock, Angle Valves, Gate Valves, Check Valves
ZHEJIANG KINGSIR VALVE CO., LTD. , https://www.cn-kingsir.com