Sand and gravel are the most basic materials in the construction industry. Today, when natural sand is constantly decreasing, artificial sand and synthetic sand have become a project that can make a fortune. In this process, there is a machine that can increase the price of the entire product.it is the sand washing machine, which can improve the quality of the entire product, thereby increasing the price of the entire product.
What is a sand washing machine?
Sand washing machine, also known as stone washing machine, is mainly used to remove impurities (such as dust) from sand products. Because many machines wash sand and gravel with water, they are called sand washing machines. Sand washing machine is a sand washing and sand selection equipment for artificial sand as well as natural sand. It is widely used in the cleaning and screening of materials in industries such as sand and gravel plants, mining, building materials, transportation, chemical industry, water conservancy and hydropower, and concrete mixing stations. Play a role in efficient cleaning.
How many types of sand washing machines are there?
Spiral Sand Washer
Spiral sand washing machine is a kind of sand washing machine. It mainly stirs the sand and gravel materials through the screw device in the equipment, so that the soil and water in the sand and gravel materials are mixed and discharged from the water outlet on the equipment, while the sand and gravel materials are Under the action of the screw device, it is gradually screened and discharged from the discharge port at the upper end, so as to realize the cleaning and screening effect of sand and gravel.
The spiral sand washing machine is especially suitable for making hard and brittle materials such as wear-resistant materials, refractory materials, cement, quartz sand, steel sand, slag powder, copper-iron ore, iron ore, gold ore, concrete aggregate, and asphalt aggregate. It is a kind of high-efficiency and energy-saving crushed stone sand making equipment.
Wheel bucket sand washing machine
The motor drives the impeller to rotate slowly after the deceleration of the V-belt, speed-reduction belt and gear. The sand and gravel enter through the feeding trough, roll over under the drive of the impeller, and grind each other to remove the impurities covering the surface of the sand and gravel, and at the same time destroy the surface of the sand and gravel. water vapor layer to facilitate dehydration. At the same time, add water to form a strong water flow, take away impurities and foreign objects with small specific gravity in time, and discharge them from the discharge port. The cleaning effect of sand and gravel.
This type of machine is a relatively advanced technology. It has excellent characteristics such as high cleaning degree, reasonable structure, large output and less sand loss during sand washing. It is one of the main options for upgrading in the market.
Drum washing machine
Drum sand washing machines have been widely used in sand and gravel factories, mining, building materials, transportation, chemical industry, water conservancy and hydropower, and concrete mixing plants. The core is to use the stirring principle of the mixer. The raw materials are rolled, pushed and rubbed by the continuous spiral blades in the mixing drum, so as to realize the sand washing.
Its characteristic is that in addition to the finished material stacking belt conveyor, the system is integrated into an overall frame, which not only ensures the integrity of the equipment, but also leaves a moderate space for maintenance and inspection, and the high integrity is convenient for the construction site. It is also safer to store or transport.
The bucket is a sand washer
When the bucket type sand washing machine is working, the power system of the linkage device drives the four-corner wheel to rotate slowly, rolls under the driving of the chain bucket, and grinds each other to remove the impurities covering the surface of the sand and gravel, and at the same time destroy the water vapor layer on the surface of the sand and gravel, so as to prevent Conducive to dehydration, add water at the same time to form water flow, take away impurities and foreign objects with small specific gravity in time, and discharge them from the discharge port to complete the cleaning work.
The clean sand and gravel are lifted by the bucket, and the sand and gravel are poured into the discharge chute from the upper four-corner wheel to complete the cleaning of all the sand and gravel.
While the bucket is stirring, the sand at the bottom of the water is dug up, and the muddy water is controlled through the water control hole, and then transported to the stacking site through the conveyor belt, or enters the next stage of the sand washing device. The bucket type sand washing machine has a reasonable structure, Flexible assembly, high output and significant water saving.
Vibrating sand washing machine
The vibrating sand washing machine has been developing relatively well in the industry. It has its own unique advantages and cannot be replaced by other sand washing machine equipment. The integrity and operational stability of the vibrating sand washing machine are very high. Except for the material conveying belt conveyor, all structures are designed in a frame to ensure the integrity of the equipment while leaving appropriate maintenance and inspection space. The structure is convenient and safe.
The vibrating sand washing machine also adopts the principle of agitator. The rotation of the spiral blades and the mutual friction between the materials enable the raw materials to be effectively processed, which improves the reliability of the sand washing machine. It is suitable for fine-grained and coarse-grained cleaning and screening. Sand machine is a relatively rare equipment. Although its output is high and water consumption is low, its machine price is relatively high.
What is the difference between a spiral sand washer and a spiral classifier?
Because of their similarity in appearance, spiral sand washer and spiral classifier are not clear to many people. Now I will teach you how to distinguish them:
Although many people think that the spiral sand washer and the spiral classifier are the same in appearance, they actually have some differences. The most obvious difference is the difference between the two spiral blades. The blades of the spiral sand washer are solid blades, and the blades of the spiral classifier are suspended hollow blades.
The spiral sand washing machine needs to be arranged inclined. The lower part of the water tank is surrounded by three-sided weir plates to form a sedimentation tank. The screw head enters the sedimentation tank and is continuously driven and rotated by the motor. The cleaning water is supplied by the perforated plate at the bottom of the sedimentation tank. Grading function.
The principle of the spiral classifier is that the size and specific gravity of the solid particles are different, so the sedimentation rate in the liquid is different, the fine-grained ore floats and overflows in the water, and the coarse ore particles sink at the bottom of the tank. It can filter the powder, then rotate the coarse material to the feed port of the mill through the screw plate, and discharge the filtered fine material from the discharge port.
Spiral sand washing machine is mainly used for cleaning sand and gravel. Spiral classifier is widely used in beneficiation, or in gravity concentrator to classify ore sand and fine mud. Desliming and dehydration are carried out during the operation.
As far as the function of sand washing is concerned, the blade area of the spiral sand washing machine is larger, which can transport more ore at the same time, and its processing capacity is about 2 to 3 times that of the classifier of the same specification.
sand washing effect
Compared with equipment of the same specification, the silo of the sand washing machine is larger than that of the classifier, so the sedimentation time of the gravel will be longer, so the gravel will be cleaner.
What are the working principles of the 4 common sand washing machines?
The spiral sand washing machine uses the buoyancy of water to separate dust and impurities from the sand and gravel, and achieves the purpose of filtering water to remove impurities; the motor rotor adopts a central structure, the spiral blades are installed on the central shaft, and the reducer is connected to the central shaft. Work, is a device for machine classification, the principle is that the specific gravity of solid particles is different, so the sedimentation rate in the liquid is also different.
The wheel sand washing machine is driven by a motor and a reducer, which drives the impeller in the water tank to rotate continuously in the water tank, so as to stir, turn over and wash the sand or slag particles in the water tank, and finally the material is dehydrated in the impeller and discharged.
The drum sand washing machine is supported by four tugs, the motor drives the reducer, the large gear and the pinion drive the cleaning cylinder to rotate at a low speed, and the mud and stone powder are fed from the feeding port and enter the drum. There is a certain angle of wear-resistant rubber lining plate in the cleaning tank. During this process, it will be circulated for many times and washed with water in the forward or reverse direction. The cleaned aggregate is discharged through the screen at the discharge port, and finally dehydrated.
The vibrating sand washing machine consists of an upper eccentric block, a circular vibration, an electric motor and a vibrating screening structure, which is connected to the vibration of the screen box by a circular vibration motor, and with the help of the strong spring of the equipment, separation and cleaning can be performed automatically.
What are the criteria for purchasing a sand washing machine?
- When buying a sand washer, try not to buy second-hand equipment as much as possible. For many beginners, buying second-hand equipment can save costs, but second-hand equipment will have various failures in the later stage, and parts need to be replaced, and there is no sales service from the manufacturer, so use The cost of second-hand equipment is still worth the cost.
- If you want to know the actual quality and application effect of the sand washing machine manufacturer’s machine, the most reliable way is to visit the manufacturer on the spot, and you should go to the site to see what the field work of the machine looks like.
- For medium or large construction projects, especially those with a large amount of concrete and high compressive strength, the sand washing machine is particularly important. It is conducive to the systematic management of the entire production and can make the production work smoothly.
- The sand washing machine can work alone, can automatically control the system, reduce the configuration of production and manufacturing technicians, and the product quality can be controlled by computer and fully automatic adjustment.
- When the production scale of the sand washing machine does not exceed 200 tons per hour, and the quality control of the sand and gravel factory is relatively good, dry production can be considered, which not only saves the total investment of the project, but also easily meets the environmental protection standards.
How to test after installing the sand washer?
- First of all, when you receive the machine, first check whether the whole machine is intact, and then install it according to the manufacturer’s installation manual.
- After installation, check whether the gear of the reducer is displaced and whether the gap between the water tank and the bucket is consistent.
- To add lubricating oil to the machine, it can increase the working life of the machine.
- The machine has to work continuously for 2 hours without exception.
- All components of the machine are not loose after work.
- There is no abnormal noise in the reduction box and gear box of the machine.
- The maximum feeding speed of the machine should meet the design requirements.
What is the general configuration of the sand washing machine production line?
Generally, the whole sand washing production line has equipments such as crushing, sand making, screening and sand washing.
If all that needs to be cleaned is sand and no stones, the configuration of the entire production line is as follows: silo, conveyor belt, sand washing machine and conveyor.
If there are relatively large materials to be washed, the production configuration of the entire sand washing machine mainly includes: feeder, jaw crusher, cone crusher, sand making machine, vibrating screen, sand washing machine and conveyor belt.
How to deal with the sewage after sand washing by the sand washing machine?
Mainly through the use of a series of equipment such as filter press, concentration tank, dosing and clean water recovery tank, the mud is treated, not simply discharged. After a dosing reaction, the mud and water are separated and the upper layer of clean water is recycled and used, and the layered thick mud water in the lower layer flows into the filter press, and after the second dosing, the mud and water are further separated, and the filter press can be processed. Achieving the effect of rolling mud.
That’s all I’m going to introduce today. After reading this article, what questions do you still don’t understand? If you still have questions, you can leave a comment below the article, and we will answer your questions one by one. Thank you for reading, and hope you can continue to read other articles on our site.