U-type screw conveyor is suitable for small-scale operation and can transport powder, granule and small block materials. The materials can also be stirred, mixed, heated and cooled during transportation. According to the actual working conditions, the trough screw conveyor can have multiple inlet and outlet ports.
Material: carbon steel, stainless steel
Conveying length: 1-20 meters
Conveying capacity: 134 m³/h
Motor power: 1.1-5.5kW
Weight: 726-7090kg
Installation angle: 0-25°
U-type screw conveyor, also called trough screw conveyor, is a kind of screw conveyor with U-shaped shell, which is used for conveying bulk and viscous materials. It is suitable for horizontal/small inclination conveying. The upper part of the screw conveyor is equipped with an observation cover, which is convenient for cleaning and maintenance and debugging when the material is blocked or entangled by the material. It can be loaded and unloaded at any point on the conveyor line, and intermediate feeding and multi-point feeding can be carried out at different positions.
When working, U-type screw conveyor is driven by motor power through the reducer to reduce the speed and pass the coupling to the screw shaft for rotation. Hesitating the rotation of the screw blade, the friction force between the material and the shell is generated by the pulling of the screw shaft. The material moves slowly and slowly towards the direction of the discharge port, so the material is transported to the silo or the material pool to complete its work.
U-type shaftless screw conveyor: suitable for conveying granular/powder materials, wet/paste materials, semi-fluid/viscous materials, easily entangled/easy-clogging materials, materials with special hygiene requirements, such as municipal solid waste, sieves fractions and floats, dewatered, thickened or conditioned sludges, packaged foods, creams or pastes, and wastes from meat, fish, fruit and vegetable processing.
U-type shafted screw conveyor: It is not easy to transport sticky materials, and has a certain friction, which has certain requirements on the wear resistance of the screw conveyor.
In addition, the U-type screw conveyor can also choose carbon steel and stainless steel materials according to the nature of the conveyed materials, and can also be designed as double shafts or various forms.
1. There are 7 specifications of U-type screw conveyor: screw diameter: 150, 200, 250, 300, 400, 500, 600;
2. 10 standard revolutions (number/min): 20, 30, 35, 45, 60, 75, 90, 120, 150;
3. The length of the screw conveyor: from 3 meters to 30 meters, the length of the conveyor can be freely selected; if the screw conveyor is too long, the hanging bearing is added.
Benefits
1. Stable conveying - can convey powder, granule, small block materials, materials can also be stirred, mixed, heated and cooled during transportation, the flow of materials can be controlled by adjusting the speed, there are single-axis drive screw and double-axis drive The conveying capacity of helical and double helical blades is larger than that of helical blades, and the output is 1.5-2 times higher than that of single shaft.
2. Multi-point loading and unloading - U-type screw conveyor is loading and unloading at any point on its conveying line, and can perform intermediate feeding and multi-point feeding at different positions.
3. Convenient maintenance - The upper slot cover of the U-type screw conveyor can be disassembled, which is convenient to check the operation status and clean up the remaining materials in time.
Limitations
1. The conveying angle is limited - the conveying angle of the U-type screw conveyor should not exceed 15°. If the inclination angle is too large, the conveying efficiency will decrease, and the conveying efficiency will decrease by 15% for every 5° increase.
2. Limited conveying length - U-type screw conveyor has limited pressure bearing capacity and is not suitable for long-distance conveying. Suspension bearings should be installed every 2 meters to prevent excessive wear of the screw conveyor due to the collapse of the screw shaft.
| Gauge | Main technical performance | drive | drive | weight(kg) | |||
| Model | Height(m) | Output (cement) t/h | speed(min) | reducer | motor | ||
| model | Speed ratio | power(kw) | |||||
| U 200 | -10 | 9 | 60 | ZQ250 | 23.34 | 1.1 | 726 |
| U 200 | -20 | 9 | 60 | ZQ250 | 23.34 | 1.5 | 1258 |
| U 250 | -10 | 15.6 | 60 | ZQ250 | 23.34 | 2.2 | 960 |
| U 250 | -20 | 15.6 | 60 | ZQ250 | 23.34 | 3 | 1750 |
| U 300 | -10 | 21.2 | 60 | ZQ350 | 23.34 | 3 | 1373 |
| U 300 | -20 | 21.2 | 60 | ZQ350 | 23.34 | 4 | 2346 |
| U 400 | -10 | 51 | 60 | ZQ400 | 23.34 | 5.5 | 1911 |
| U 400 | -20 | 51 | 60 | ZQ500 | 23.34 | 11 | 2049 |
| U 500 | -10 | 87.5 | 60 | ZQ400 | 23.34 | 7.5 | 2381 |
| U 500 | -20 | 87.5 | 60 | ZQ650 | 23.34 | 18.5 | 5389 |
| U 600 | -10 | 134.2 | 45 | ZQ750 | 23.34 | 22 | 3880 |
| U 600 | -10 | 134.2 | 45 | ZQ850 | 23.34 | 55 | 7090 |
U-type screw conveyor is composed of driving device, coupling, screw shaft, groove body, hanging bearing device, bearing device at both ends, support, cover, inlet and outlet, etc.
Drive part: three-phase asynchronous motor or variable frequency motor.
Reducer parts: cycloid reducer or gear reducer.
Linkage part: direct coupling or sprocket chain.
Box body parts: shell or lining plate, screw shaft with shaft or screw shaft without shaft, hanging bearing, bearing at both ends, inlet and outlet, shell cover, etc.
Bottom: base.
1. Electrical specifications are available for 380V/50Hz, 415V/50HZ 460V/60Hz or customized
2. The screw material is wear-resistant 16Mn or hard face or stainless steel, which can be selected according to your application.
3. Available in standard lengths and interchangeable, customized lengths per section.
4. According to the actual working conditions, the U-type screw conveyor can have multiple inlet and outlet ports.
U-type screw conveyor is used for fine dry powder, small particles, or particles with 30% water content, sludge, garbage, etc. It has a particularly strong working ability, stable transportation, not easy to jam, and uniform transportation. It is widely used in food, chemical industry, building materials, etc. Metallurgy, mining, electric power and other departments.
Sewage treatment plant: It can be used in sewage treatment plant to transport solid debris, such as coarse and fine grid cleaning machine slag and sludge cake of sludge dewatering machine.
Waste treatment plant: kitchen waste or domestic waste generated by household kitchens, restaurants, restaurants, canteens, markets and other industries, stainless steel material can prevent damage to the machine due to corrosive materials.
Industrial waste treatment: such as boiler coal loading system, solid waste incineration, etc.
Cement batching plant: It is used for conveying powder materials such as cement and fly ash. During the conveying process, it can also realize the purpose of mixing and stirring the materials to prevent the concrete from agglomerating.
1. Multi-point loading: It is usually necessary to arrange conveyors with multiple feeding points, which are manually adjusted. When only one inlet needs to be opened at any given time, the opening of gates or switchgear should be limited and the conveyor should not be overloaded. When multiple feed ports need to be opened, carefully adjust and limit the flow of each feed port so that the total amount does not exceed the design capacity limit of the conveyor.
2. Discharge at the end of the spiral trough body: The material is directly discharged through the opening at the end of the trough body of the screw conveyor. The screws are supported by part of the end plates and the bearings are mounted on the end flanges. When the U-type screw conveyor filling factor exceeds 0.45, this unloading method cannot be used.
3. No nozzle discharge port: the material falls directly through the opening at the bottom of the spiral groove. It is generally used for unloading in the middle of the equipment. At this time, there is no need to stop the unloading until there is no difference in the unloading. For example, for unloading to warehouses.
4. Open discharge: The screw at the tail of the conveyor is supported by standard suspension bearings. This type of unloading arrangement can freely unload materials to places such as silos or storage piles.
5. Bottom opening unloading: used for unloading and distributing materials to hoppers, silos or silos for stacking. The material is discharged at any desired length opening at the bottom of the conveyor helical groove. The materials are piled up to form a natural material pile, and the materials that continue to come later are sent to the place where they will not be unloaded through the material pile.
