Spiral sand washing machine is a kind of sand washing machine, which is suitable for washing, grading, impurity removal and other operations in metallurgy, building materials, hydropower and other industries, and is used for washing and sorting of fine-grained and coarse-grained materials. It is suitable for construction sand and road construction sand. The spiral sand and gravel washing machine has low power consumption and high cleaning degree. Good sealing structure, fully enclosed transmission device, and adjustable weir plate ensure that the product is efficient, durable, cleaning and dehydration is good, and fine-grained products remain stable.

Scope of application of spiral sand washing machine

It is suitable for the washing operation of medium and fine-grained and coarse-grained materials.

The spiral sand washing machine is especially suitable for making abrasives, refractory materials, cement, quartz sand, steel sand, slag powder, copper ore, iron ore, gold ore, concrete aggregate, asphalt aggregate and other hard and brittle materials. Fine crushing and medium crushing is a kind of high-efficiency and energy-saving crushed stone sand making equipment, which saves 50% energy than traditional Sand Making Machines.

The structure of spiral sand washing machine

The spiral sand washing machine mainly includes four kinds of classifiers: high weir type single-screw and double-screw classification sand washer, submerged single-screw and double-screw classification sand washer. Spiral sand washing machine is mainly composed of U-shaped groove, screw, transmission device, lifting mechanism, support shaft and other parts.

Working principle of spiral sand washer

The spiral classification sand washing machine is based on the principle that the size of the solid particles and the specific gravity are different, so the sedimentation speed in the liquid is different. It is a kind of grading mechanical equipment that is pushed up by the screw to carry out mechanical classification. It can filter the material powder ground in the mill, and then use the spiral blade to rotate the coarse material into the feed port of the mill, and put the powder into the mill. The filtered fines are discharged from the overflow pipe. The base of the spiral classification spiral sand washer is made of channel steel, and the body is welded with steel plates. The water inlet head and shaft head of the screw shaft are made of pig iron sleeves, which are wear-resistant and durable. The lifting device is divided into two types: electric and manual.

Contrast difference

• The spiral stone washing machine is used for the desliming and screening operations of a large number of sand and gravel used in construction sites, sand and gravel factories, prefabrication plants and hydropower construction sites, and can also be used for ore sorting operations.
• It can effectively handle materials within 0-30mm, and can separate and wash the soil and ash powder on the materials into clean materials. The machine has the advantages of simple structure, easy maintenance and high washing efficiency.
• Spiral sand washing machine is divided into double helix and single helix.
• Compared with the single-screw sand washing machine, the double-screw sand washing machine has the characteristics of high efficiency and large output, and can process materials within 0-30mm.
• The double-screw washing machine has the characteristics of simple structure, easy maintenance and high washing efficiency.
• The rotor of the double-screw stone washing machine adopts a central structure, the spiral blades are installed on the central shaft, and a reducer is connected to the central shaft for work. With the help of the principle that the specific gravity of solid particles is different, so the sedimentation speed in the liquid is different, a kind of ore cleaning equipment for mechanical extension.

Use and maintenance of spiral sand washing machine

The spiral sand washing machine should be started when there is no material on the screen surface, try to avoid starting with material, and feed the material after the machine runs smoothly. The feeding should be stopped before the machine is shut down, and the machine should be shut down after the surface material is removed. During the working process, the operation of the sand washing machine should be observed frequently. If abnormal movement or abnormal sound is found, it should be stopped in time to check, find out the cause, and eliminate the fault.

Spiral sand washer installation

The installation, adjustment and operation host of the spiral sand washer are assembled by the manufacturer, and supplied as a set after passing the empty car test. The user should check carefully after receiving the goods. In order to find and eliminate the problems that may be caused during transportation in time, attention should be paid to the installation, adjustment and operation of the spiral sand washer:

• 1. Due to the large torque of the machine, it is recommended to install the machine on a concrete foundation, and there are embedded weldments on the foundation for welding during installation. The depth and area of ??the foundation are calculated separately according to the soil conditions. 3 times, please refer to the basic drawing for the installation size of the machine.
• 2. After the installation is in place, check whether the large and small gears of the reducer are displaced, and whether the gap between the water tank and the large wheel bucket is consistent. After adjustment, the machine is fixed and welded on the foundation.
• 3. Lubricating oil should be added to adjust the height of the oil level, generally 50% below the center of the shaft.
• 4. After the spiral sand washer has been installed and adjusted properly, carry out a test run. The no-load test run should reach: ①Continuous operation for 2 hours; ②All solid parts should be firm without loosening; ③No abnormal noises in the reducer and gearbox.
• 5. In addition to the no-load test requirements, the load test should also meet the following requirements: (1) When feeding, the material should not strongly impact the water tank, and it is not allowed to eccentrically load and fill the water tank, so as to avoid damage to the wheel bucket and the body; The maximum material size meets the design requirements.