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Powder Screw Feeder Conveyor can convey any powder to the packaging machine and food processing destination. It adopts the principle of spiral feeding and can convey in an inclined, horizontal or vertical manner. It is suitable for different scenarios and is made of stainless steel and carbon steel.
Depending on the installation angle and conveying direction, powder screw conveyors are mainly divided into three types: horizontal conveying, inclined conveying and vertical conveying.
Horizontal screw conveyor: Installation angle: 0°~15° (close to horizontal), suitable for short-distance conveying, uniform feeding, mixing and stirring, usually using U-shaped trough or tubular structure, easy to maintain, suitable for powders with good fluidity.
Inclined screw conveyor: Installation angle: 15°~45° (some models can reach 60°), suitable for powder conveying that requires a certain lifting height, such as from the ground to the silo, mixer feeding, etc. Compared with horizontal + vertical combined conveying, the inclined structure is more compact. It can convey slightly agglomerated powders (such as premixes, feed additives).
Vertical screw conveyor installation angle: 90° (completely vertical), suitable for powder conveying that requires a large height lift (such as tower production lines, high-rise silo feeding). Suitable for factory layouts with limited space, the pipeline design can prevent powder from flying, meeting environmental protection requirements.
The powder spiral feeder conveyor pushes the material along the pipeline direction through the rotation of the spiral blade. When the transmission device is started, the motor drives the spiral shaft to rotate, and the spiral blade drives the material forward to complete the material conveying process.
The powder spiral feeder conveyor is usually composed of the following main components:
Spiral shaft: It is the core component of the conveyor, runs through the entire length of the conveyor, and plays the main role in conveying materials.
Spiral blade: It is fixed on the spiral shaft and is the key component for pushing the material along the axis direction of the conveyor.
Bearing: It is used to support and fix the spiral shaft, reduce friction, and ensure the smooth rotation of the spiral shaft.
Transmission device: It is usually composed of a motor, a reducer, etc., which is used to drive the rotation of the spiral shaft.
Support frame: used to support the structure of the entire conveyor to ensure the stability and safety of the conveyor during operation.
Feed port and discharge port: used for the entry and exit of materials. The feed port is usually located at one end of the conveyor, while the discharge port is located at the other end, which facilitates the smooth transportation of materials.
The powder screw feeder has many advantages, such as efficient and stable conveying capacity, flexible and diverse design, etc. Its main features include but are not limited to the following points
1. Using double electric motors: feeding motor & vibrating motor, separately controlled.
2. Product funnel is designed to be adjustable vibrate, which lead to avoid product blocking and improve the adaptation of different products.
3. Product funnel can separate from the tube for easy assembly.
4. Special anti-dust design to protect bearing from dust.
5. In order to facilitate machine cleaning, following functions are added in: auger can reverse for emptying the tube, product discharge gate is mounted in the bottom of the funnel, auger can be disassemble for washing.
The powder screw feeder is a kind of conveying equipment widely used in many industries. Its application fields include but are not limited to the following aspects:
Building materials industry: powder screw feeder is often used to transport raw materials such as cement and limestone powder to realize the automated feeding process and improve production efficiency.
Food processing: spiral feeder conveyors are used to convey powdered food raw materials such as flour, powdered sugar, and grains to ensure continuous feeding of food production lines, production efficiency, and food quality.
Chemical manufacturing: powder spiral feeder conveyors are often used to convey chemical raw materials or finished powders, such as granular fertilizers, plastic granules, etc., to meet the conveying needs of different process flows.
Pharmaceuticals: commonly used to convey pharmaceutical raw material powders or granules to ensure accurate feeding in the pharmaceutical production process and ensure production quality and safety.
Agricultural field: can be used to convey granular agricultural products such as feed and seeds to improve the efficiency of feed processing and seed processing.
Other industries: powder spiral feeder conveyors are also widely used in plastic processing, mining, environmental protection and other industries to convey various types of powdered or granular materials to meet the production needs of different industries.
As one of the indispensable key equipment in modern industrial production, powder spiral feeder conveyors play an irreplaceable role in improving production efficiency, reducing costs, and realizing automated production, injecting vitality into the development of various industries.
Powders with good fluidity (such as flour, cement): horizontal, inclined, vertical. You can choose the appropriate equipment according to your own conveying requirements and structure, preferably horizontal or inclined.
Powders with slight agglomeration (such as feed premix): Choose an inclined screw conveyor (<45°), and add a vibration anti-blocking device if necessary.
Powders with high viscosity/easy adhesion (such as powdered sugar, fish meal): Prioritize horizontal conveying + wear-resistant lining, or use pneumatic conveying instead.
High-height lifting (>10 meters): A vertical screw conveyor must be selected, and ensure that the powder is dry and has good fluidity.
Conveying calcium carbonate powder in the chemical industry: Large chemical companies need to transport calcium carbonate powder from the grinding workshop to the packaging line, with a conveying distance of 25 meters, requiring dust-free and moisture-proof. The U-shaped horizontal screw conveyor (304 stainless steel, fully enclosed structure) has a conveying capacity of 10 tons/hour, a motor power of 5.5kW, is completely enclosed, and the dust overflow rate is <0.1%.
Upgrade of milk powder production line in food industry: The original pneumatic conveying system of the dairy factory has high energy consumption and the milk powder breakage rate exceeds 5%. Customized large-angle screw conveyor (40° tilt, food-grade 316L stainless steel), special low-speed design (60rpm) to reduce milk powder breakage.
Vertical conveying of vitamin premixes in pharmaceutical industry: Vitamin powder needs to be lifted 12 meters to the mixing tank, requiring zero cross contamination. Install shaftless vertical screw conveyor (eliminating the risk of bearing contamination), modular quick-disassembly structure, to meet GMP certification requirements.
Dahan Machinery Manufacturing Co., Ltd. focuses on the research and development and production of powder screw conveying equipment. Relying on its independent core technology, the company has created a full range of screw conveying solutions, covering horizontal, inclined and vertical conveying models, with a processing capacity of 0.5-200 tons/hour, which are widely used in more than 30 industries such as chemical, food, metallurgy, and environmental protection. With customized intelligent manufacturing as the core advantage, for special working conditions such as high temperature, corrosion, and explosion-proof, innovative research and development of high temperature resistant sealing structure (-50℃~850℃), nano anti-corrosion coating and anti-blocking frequency conversion speed regulation technology, the equipment life is increased by more than 50% compared with the industry standard. Passed ISO 9001 quality system certification, key components are precision manufactured by CNC machining centers to ensure operational stability.
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