Spiral sand washing machines are widely used in the washing, grading, and impurity removal operations of fine-grained and coarse-grained materials. Below, the editor will take you to have a detailed understanding. Let's take a look together.
Spiral sand washing machine is a type of sand washing machine, which mainly mixes the sand and gravel materials through the spiral device inside the equipment, so that the soil and water in the sand and gravel materials are mixed and discharged from the flow port on the equipment. The sand and gravel materials are gradually screened under the action of the spiral device and discharged from the top discharge port, thereby achieving the cleaning and screening effect of the sand and gravel materials.

The spiral sand washing machine is suitable for washing, grading, and impurity removal operations in industries such as mining sand and gravel, metallurgy, building materials, and hydropower. It is used for washing operations of fine-grained and coarse-grained materials. Sand and gravel are particularly suitable for construction and road construction. The spiral sand washing machine has low power consumption and high cleaning efficiency. Good sealing structure, fully enclosed transmission device, and adjustable weir plate ensure product efficiency, durability, good cleaning and dehydration effects, and stable fine-grained products.

working principle
Spiral sand washing machine uses particles of different particle sizes and densities to have different settling speeds in the fluid: particles with fine particle size and low density have a slow settling speed, while particles with large particle size and high density have a fast settling speed. It separates dust, impurities, and sand, and achieves the purpose of filtering, removing impurities, washing, and conveying under the uniform stirring of spiral blades.
Applicable scope
The spiral sand washing machine is particularly suitable for producing fine-grained and coarse-grained sand washing operations for various hard and brittle materials such as abrasives, refractory materials, cement, quartz sand, steel sand, slag powder, copper ore, iron ore, gold sand, mines, sand and gravel, concrete aggregates, asphalt aggregates, etc. This equipment is widely used in various ore mining industries.
Product features

The spiral sand washing machine has a simple structure, convenient maintenance, strong processing capacity, low power consumption, and high cleaning efficiency. The novel sealing structure, fully enclosed oil bath transmission device, and adjustable overflow weir plate ensure the efficiency, durability, good cleaning and dehydration effects of this series of products, low sand water content, low mud content, low stone powder loss, and stable fine-grained products.

Installation of sand washing machine
The installation, adjustment, and operation of the machine are assembled by the manufacturer and supplied as a unit after passing the empty car test. Users should carefully inspect the goods upon receipt. In order to timely detect and eliminate potential problems during transportation, attention should be paid to the following when installing, adjusting, and operating the machine:
① Due to the large torque of this machine, it is recommended to install the machine on a concrete foundation with embedded welding parts for welding during installation. The depth and area of the foundation are calculated separately based on soil conditions. It is recommended that the weight of the foundation be approximately three times the weight of the machine, and the installation dimensions of the machine refer to the foundation drawing.
② After installation, check whether the gears of the reducer are shifted and whether the gap between the water tank and the large wheel bucket is consistent. After adjustment, fix the machine on the foundation by welding.
③ Lubricating oil should be added and the oil level should be adjusted. Generally, it is recommended to take 50% below the center of the shaft.
④ After the installation and adjustment of the machine, a trial run should be carried out, and the no-load test should achieve:
a、  Continuous operation for 2 hours:
b、  All sturdy components should be firm and free from looseness;
c、  There is no abnormal noise from the reducer and gearbox.
⑤ In addition to meeting the requirements of no-load testing, load testing should also meet the following requirements:
a、  When feeding, do not let the material strongly impact the water tank, and do not load or stack the water tank to avoid damaging the wheel bucket and body.
b、  The maximum feeding amount meets the design requirements.
Structural characteristics
① Simple structure and stable operation.
② Separate bearings from water and materials to avoid premature damage caused by pollution and rust on the machine.
③ Suitable for various work environments.
④ The material loss during washing is minimal, and the washing efficiency is high, which can fully meet the requirements of high-grade materials.
⑤ The service life is relatively long, and there are almost no vulnerable parts except for the frosted pieces.
⑥ In rare cases, maintenance is required, which can greatly reduce costs.
Selection range
From the perspective of usage, sand washing machines can be divided into two types. One is the sand washing system, which is a broad definition of sand washing machines and has a wide range of applications; Another type is the sand washing machine commonly referred to as a matching sand making machine. In a broad sense, a sand washing machine refers to a sand washing system that can not only be used in sand making machines, but also widely used for cleaning impurities such as soil and stones contained in river sand, ground sand, weathered sand, etc. The washed sand is commonly known as "water washed sand". Widely used in sand yards, mixing plants, and various key projects.

Comparative differences
The spiral sand washing machine is used for the desilting and screening of large amounts of sand and gravel used in construction sites, sand and gravel factories, prefabrication plants, and water and electricity construction sites. It can effectively handle materials within 0-10mm, and can separate and wash the soil and ash powder on the materials into clean materials. This machine has the advantages of simple structure, easy maintenance, and high washing efficiency. Spiral sand washing machines are divided into double helix and single helix. Compared to single spiral sand washing machines, double spiral sand washing machines have higher efficiency and larger output, and can handle materials within 0-10mm.
The double spiral sand washing machine has the characteristics of simple structure, easy maintenance, and high washing efficiency.
The rotor of the double spiral sand washing machine adopts a central structure, with spiral blades installed on the central shaft and a reducer connected to the central shaft for operation. A type of ore cleaning equipment that utilizes the principle that the specific gravity of material particles varies, resulting in different settling rates in liquids, for mechanical separation and washing.