Vibration dewatering screen is a kind of high efficiency, energy saving and environmental protection dewatering equipment, which is widely used in coal, mineral processing, metallurgy, chemical industry, building materials and other industries. In this paper, the working principle, structural characteristics, application advantages and application fields of the vibrating dewatering screen will be introduced in detail.
First, the working principle
Vibration dehydrated screen is the use of vibration motor to generate vibration force, so that the screen body along the direction of vibration force for periodic reciprocating vibration, the material on the screen surface with the screen vibration, one is its own gravity, the second is the vibration of the screen, so that the material on the screen surface thrown up, so as to promote the material loose, separated. At the same time, due to the friction between the material and the screen surface and the gravity of the material itself, the material produces jumping motion on the screen surface, which further promotes the separation and dehydration of the material.
Second, structural characteristics
Screen box: Screen box is composed of screen frame, screen mesh, vibration motor, etc. The screen frame is usually welded with cast iron or steel plate to ensure sufficient strength and stiffness. Screens are used to separate materials, usually made of stainless steel or high-strength nylon materials. The vibration motor is installed at the bottom of the screen frame and transmits vibration through eccentric wheels.
Vibration exciter: The vibration exciter is the core component of the vibration dehydration screen, which is composed of an eccentric wheel and a counterweight fixed on it. When the eccentric wheel rotates, the counterweight will produce centrifugal force, which causes the screen box to oscillate periodically along the direction of the exciting force.
Shock absorber: In order to avoid resonance effects on the building when the vibration dewatering screen is running, shock absorber is usually installed. The shock absorber is generally composed of rubber plate, spring and vibration isolator.
Control system: The control system includes power supply, starting cabinet, control cabinet and other parts. The starting cabinet can be directly started or soft started by the motor, and the control cabinet can adjust the vibration frequency, amplitude and other parameters of the vibration dewatering screen.
Three, the use of advantages
High dewatering efficiency: The dewatering efficiency of the vibrating dewatering screen is usually above 90%, which can quickly and effectively separate the water in the material.
Easy operation: simple operation, just adjust the parameters of the control cabinet, you can control the vibration frequency and amplitude of the vibration dewatering screen, easy and flexible operation.
Wide range of application: suitable for a variety of different materials, such as coal, mineral processing, metallurgy, chemical, building materials and other industries dewatering and desliming operations.
Energy saving and environmental protection: Vibrating dewatering screen adopts advanced dewatering technology, which can reduce environmental pollution, low energy consumption, and has good energy saving and environmental protection performance.
Simple maintenance: vibration dewatering screen structure is simple, easy maintenance, low failure rate. In case of failure, just replace the wearing parts.
4. Application field
Vibrating dewatering screens are widely used in the following fields:
Coal industry: In the coal industry, the water in the coal needs to be removed to improve the efficiency of coal transportation and utilization. The vibrating dewatering screen can quickly and effectively separate the water in the coal and improve the quality and price of the coal.
Mineral processing industry: In the mineral processing industry, the selected minerals need to be dehydrated and deslimed for subsequent processing and utilization. The vibrating dewatering screen can efficiently separate the water and sediment in the mineral, improving the quality and recovery of the mineral.
Metallurgical industry: In the metallurgical industry, the metal or alloy that is smelted needs to be dehydrated and desagged for subsequent processing and utilization. The vibrating dewatering screen can efficiently separate the moisture and residue in the metal or alloy, improving the quality and purity of the metal or alloy.
Building materials industry: In the building materials industry, it is necessary to mix and dehydrate various raw materials to prepare high-quality building materials products.