Sand is a kind of building material required by various industrial fields. Its quality, soil content, stone powder content and grading are very important. Generally, whether it is natural river sand or machine-made sand, it will be cleaned and removed. What sand washing machine is used for sand with high mud content? How to deal with a large amount of sludge after sand washing? What can I do? Three questions in a row. This article will answer them in detail.
1. What sand washing machine is used for sand with high mud content?
What sand washing machine is used for sand with high mud content? Welcome to buy sand mine machinery wheel sand washing machine, which is developed in combination with the actual situation of the sand and gravel industry. It has single wheel, double wheel and three wheels, and has the functions of cleaning, dehydration and grade classification. The equipment has the advantages of simple structure, small volume and wide application range. The materials enter the washing tank from the feeding tank to complete the cleaning function. The clean sand and gravel are taken away by the blade and poured into the discharge tank from the rotating impeller, Complete washing and impurity removal.
Advantages and characteristics of wheel bucket sand washer:
01. The wheel bucket sand washer has three functions: cleaning, dehydration and grade classification. It can process a lot of mountain sand raw materials in a reasonable and effective time, and the hourly output can reach 15-260t / h.
02. The wheel sand washer has high material washing efficiency, long service life, almost no vulnerable parts and no maintenance for a long time.
03. The wheeled sand washing machine has reasonable equipment structure, convenient maintenance, large processing capacity, low power consumption and high washing cleanliness. It ensures that this series of products are environment-friendly, energy-saving, durable, good cleaning and dehydration effect, and the fine-grained products are not disordered.
04. The equipment adopts impeller transmission device, which can be effectively isolated from water and materials, avoiding corrosion caused by sundries in the transmission device, resulting in greater damage and prolonging its service life to a great extent.
05. The wheel bucket sand washer itself is made of high-quality materials. In addition to the screen, there are almost no vulnerable parts, and the screen is also bolted and installed on the blade. The particle size of the screened sand and stone can be adjusted freely according to the user's requirements.
2. How to deal with a large amount of sludge after sand washing?
With the continuous development of sand and gravel industry, building a green mine is put on the agenda. The establishment of sand washing plant needs to meet the requirements of relevant laws and regulations. Among them, sand and gravel washing wastewater and domestic sewage must be treated to meet the standards for discharge or recycling. At present, improper treatment of sand washing slurry will pollute the environment, cause a lot of water and soil loss, silt the river and affect the water quality. In addition, According to the environmental functions and protection objectives of urban sewage treatment plants discharged into surface waters, the conventional pollutants of the basic control project are divided into three standard values.
How to deal with a large amount of sludge after sand washing? The following measures are generally taken:
01. Select fine sand reclaimer or integrated sand washing and dewatering machine, inject slurry with concentration ≤ 40% into hydrocyclone through slurry pump for separation, complete three functions of cleaning, dehydration and classification, recover materials above 0.075mm, remove sludge and clay below 0.075cm, and improve resource utilization.
02. About 1-3 sedimentation tanks can be set behind the sand washing machine. The sewage from washing sand flows into the sedimentation tank, and an appropriate amount of flocculant is added to make the sewage after sand washing complete the precipitation of impurities such as soil and wood in a short time, and the clear water above can be used for sand washing again.
If the sedimentation tank is not set, about 2-3.5 m3 of water is required for cleaning 1 ton of sand. After the action of the sedimentation tank, the waste water can be utilized. About 0.1-0.3 m3 of water is required for cleaning 1 ton of sand. In addition, because the water is circulating during the operation of the sand washer and will not freeze, the water in the tank shall be drained when the sand washer is stopped in the evening.
3. What can the mud do after sand washing?
Because the sludge after sand washing is precipitated and recycled, there is a small part of sludge, which contains a large number of microorganisms (including bacteria), and has a wide range of applications.
01. Used to burn bricks;
02. Return to the field to plant crops and provide high score nutrients;
03. Return to the park to plant grass and flowers;
04. Used for subgrade filler.
SMMVIK Machinery has been established for more than 30 years. There are three standardized, professional and modern intelligent production workshops, more than a dozen factory tests, quality inspectors check at all levels to ensure the quality of the equipment, which is deeply trusted by 200000 + user friends. It also provides fine sand recycling machine and sand washing and dewatering integrated machine equipment. What is the price of wheel sand washing machine, Welcome to inquire.
