There is Serious Sand Loss in the Sand Washing Production Line. How to Remedy it?

 As we all know, among the reasonable and environmentally friendly configuration methods of the entire sand making production line, it is a popular trend to equip pulse dust collector and water-washed sand washing machine. In the wastewater of wet sand washing, fine and powdered sand is inevitably lost in the water flow. Each production line loses about 5%-25% of the content. Calculating the loss in a year is also very alarming. If these lost parts are collected back, this part of the profit will also be very considerable. This article shares four methods of fine sand recycling.

Sand washing machine classification

Sand washing machines are divided into wheel sand washing machine and spiral sand washing machine. Wheel sand washing machine is widely used for washing and classifying materials in mining, building materials, chemical industry, transportation, concrete mixing stations and other fields. The sand washing process is a circular motion. Spiral sand washing equipment uses the propelling action of spiral blades to clean soil. Compared with wheel sand washing machines, spiral sand washing machines have a higher cleaning efficiency and better cleaning effects on stones. In the same way, the different specific gravity of sand, mud, and water are used to extract the sand, and the water and mud flow away along the chute.

However, no matter which type of sand washing machine is used, in the process of stirring the water source, most of the sand will inevitably be picked up, and the separation will not be clear and it will flow away along the sink. Then it inevitably caused most of the losses.

Four methods of fine sand recycling

1. Multi-stage sedimentation tank sedimentation method

The sand washing wastewater flows into the sedimentation tank, which is preferably equipped with 3 layers. It will settle layer by layer over time. Since the specific gravity of sand and mud is relatively heavy, they can be separated after a relatively long time.

Of course, this method also has disadvantages. The long-term sedimentation process takes up a large area of the sedimentation tank. In the later stage, manual excavation of sedimented sand and sedimentary mud is required, which consumes lots of time and manpower.

2. Equipped with dewatering screen equipment

Discharge the sand washing wastewater directly onto the linear dewatering screen surface to recover the lost sand.

The disadvantage is that if the raw material contains little or no mud, there will be no problem. However, if it contains too much mud, the last step will be useless and the recycling effect will not be achieved at all. What is recycled is still a mixture of sediment and sand.

3. Fine sand recycling machine device recovery

Drain the sand washing wastewater directly into the lower water tank of the fine sand collector. Use a slurry pump to pump the mixed sand and mud water to the cyclone separator and then discharge it to the screen surface. The fine sand part is discharged along with the screen surface, and the mud and water flow back to the sewer tank, forming a cycle to continuously extract sand from the wastewater.

No other faulty or theoretical problems have been found yet, and this fine sand recycling device is relatively recognized on the market.

Two points should be paid attention to when operating the fine recycling machine: first, do not feed materials when starting up. It is recommended to feed materials after idling for a few turns. This is more reasonable and can also reduce the burden on the equipment; Second, the overall power must be taken into consideration when configuring the transformer. Configure more voltage appropriately to ensure that the equipment can work normally and will not operate at low voltage.

4. Add chemicals

Discharge the lost sand water into the sinking tank, and add a chemical agent that can cause the mud and sand to quickly condense into floc, thereby achieving rapid separation of sand, mud and water. However, this method is mostly used in the coal slime industry to recycle clean and fine coal. Its use in sand and gravel quarries has certain limitations and cannot be popularized for the time being.

Before Starting the Jaw Crusher, it is Essential to Check These-Vanguard Machinery Tech

 Before starting the jaw crusher, the operator needs to do some inspections to ensure that all components are normal and there is no blocking material in the crushing cavity. In addition, pre-startup inspections can also help you discover faults in time, nip them in the bud, and avoid greater losses. So, what aspects need to be checked before starting the jaw crusher?

Lubrication condition

Before starting the jaw crusher, check whether the jaw crusher toggle plate is sufficiently lubricated, which is a prerequisite for ensuring the efficient operation of the crusher. The toggle plate is a component that transmits power to the movable jaw of the crusher. It plays the role of supporting the movable jaw plate in the jaw crusher and transmits the crushing force to the rear wall of the frame. If poor lubrication, it will directly affect the working efficiency of the jaw crusher.

Fasteners status

Check whether the various fasteners of the jaw crusher are loose. Once found, tighten them immediately to reduce the probability of jaw crusher shutdown accidents.

Conveyor belt condition

Check the integrity of the conveyor belt. If there is any damage, it should be replaced immediately. If there is oil pollution on the conveyor belt, wipe it clean with a rag.

Defensive equipment

Protective devices are an essential indicator to check because they are related to safety issues. Once problems are discovered, they should be solved in time to avoid accidents.

Check the crushing chamber

Check the oily ore or debris in the crushing cavity. Once ore or debris is found, the operator should clean it up and ensure that the jaw crusher cavity is activated.

After checking the above aspects, if there are no problems, you can start production. In addition, operators must pay attention to safety during production.

How to Improve the Crushing Effect of Multi-cylinder Hydraulic Cone Crusher by Controlling Power and Material Level?-Vanguard Machinery Tech

 The multi-cylinder cone crusher has the characteristics of large production capacity, high efficiency, laminated crushing, excellent final product particle shape, simple operation, and a high degree of automation. It is widely used in medium and fine crushing in the sand and gravel aggregate industry and mining industry, especially in medium-hard material processing systems. In the production of multi-cylinder hydraulic cone crushers, some on-site application methods can be used to effectively improve the crushing effect of the cone crusher.

Power Control

In the process of applying a multi-cylinder hydraulic cone crusher for on-site work, its main work control method is the change of feeding amount. Therefore, in the specific working process, if the feed volume is large, the driving power requirements of the mechanical equipment will also be large. To ensure its working quality, its working power should be controlled between 75% and 90%, and its maximum power should not exceed the rated power. At the same time, during on-site work, operators should strictly avoid running the crusher in a low-power state. If it is running, its running time should not exceed 5 seconds. In specific on-site crushing operations, the power of the crusher must reach more than 40% of the rated value.

Material level control

In field applications, if the multi-cylinder hydraulic cone crusher has been running for more than 30 minutes but still cannot feed, the crusher needs to be temporarily shut down and then turned on again when feeding is possible. When the cavity of the multi-cylinder hydraulic cone crusher is crowded with materials, its optimal working condition is when the operating power reaches 75% to 90% of the rated value. In specific operations, the work of the multi-cylinder hydraulic cone crusher needs to be controlled by changes in the feed volume, and the discharge port is used as an auxiliary control facility. The adjustment of the discharge port can effectively compensate for the wear of the liner. Ensure the stability of product particle size. At the same time, the tight edge discharge port adjustment and cavity type selection can also be used to ensure that the crusher cavity is filled with materials. Under normal circumstances, the height of the materials in the cavity should exceed the material distribution plate by more than 300mm. The driving power should be kept stable and controlled at 75% to 90% of the rated value.

During on-site operations, the radar level meter can be used to detect the material level in the crusher cavity, or it can be used as a device to control the signal input of the material quantity control loop in the crusher. When the material in the crusher cavity is crowded Finally, the driving power can be further optimized through reasonable adjustment of the discharge port. For example, after the crusher discharge opening is increased, the given material level driving power of the crusher will be reduced, meanwhile, the feeding amount in the crusher cavity will be increased; After the reducing crusher discharge opening, the given material level driving power of the crusher will be increased, meanwhile, the feeding amount in the crusher cavity will be reduced.

Multi-cylinder hydraulic cone crushers have exerted good application value in many fields today. Compared with traditional crushers, the installation of multi-cylinder hydraulic cone crushers is simpler and more convenient, and their work efficiency and work quality are also higher. In production, it is necessary to control the on-site application of multi-cylinder hydraulic cone crushers and perform targeted operations to improve the production efficiency and quality of the equipment.

As one of the flagship products of Vanguard Machinery, the CP series multi-cylinder hydraulic cone crusher has been widely used in production lines everywhere and has achieved good market response. This series of crushers has a good grain shape with laminated crushing, accurate and reliable full hydraulic control, and easy equipment maintenance. They are your right assistant on the road to producing high-quality aggregates.

Led by High-end Intelligent Manufacturing Technology, Vanguard Machinery will Meet You in Vietnam in the Spring

"Flowers bloom brilliantly just because of you." Vietnam and China are connected by mountains and rivers, and we share a deep friendship of "comrades and brothers". As the top event in Vietnam's mining and related industries, the Vietnam International Mining, Engineering Machinery, Construction and Technology Exhibition will be held at the National Convention and Exhibition Construction Center in Hanoi, Vietnam from April 24 to 26, 2024. Vanguard Machinery will be attending with the theme of "high-end, Intelligence and Win-win", and we will bring a full range of products and solutions to booth A16 and look forward to your visit!

Vietnam is located on the Southeast Asian peninsula with rich mineral resources and a superior geographical location, which provides strong support for the development of the construction machinery and mining market. At the same time, the Vietnamese government also attaches great importance to the development of construction machinery and mining fields and has formulated a series of supporting policies to create a good environment for the growth and development of enterprises. According to customs data in the mining machinery industry in 2023, China's exports to Vietnam will be approximately US$900 million, showing a year-by-year growth trend with strong market demand.

Aiming at specific markets, Vanguard Machinery customizes personalized development models, enriches product systems, and innovates service models. The "7×24-hour service commitment" comprehensively integrates customer needs before purchasing machines from service speed, maintenance costs, quality standards, etc. From equipment installation to post-operation services, we integrate them into a value chain oriented by customer needs. No matter where you are, we will take innovative quality and excellent service as the benchmark, and deeply engrave the "MADE IN CHINA" quality brand in the world and every corner.

What's the Difference Between the Spiral Sand Washing Machine and the Wheel Sand Washing Machine?

 Sand washing is the last process of the sand production line. The quality of the machine-made sand is better and cleaner after being cleaned by the sand washing machine. Therefore, the choice of sand washing machine is also particularly important. There are two types of common sand washing machine: spiral sand washing machine and wheel sand washing machine in the market. What is the difference between these two devices? Which sand washing machine is the best device?

Spiral sand washing machine and wheel sand washing machine are common washing equipment, and the differences between the two are:

1. Different composition structure

The composition of the spiral sand washing machine mainly includes the following parts:

1) Spiral shaft: The spiral blade is fixed on the spiral shaft, and the spiral shaft will drive the spiral blade to rotate.

2) Spiral blade: The spiral blade is located on the spiral shaft, and the sand and gravel materials are cleaned and screened by rotation.

3) Drive device: Drive the spiral shaft to rotate and drive the spiral blade to clean and screen.

The composition of the wheel sand washing machine mainly includes the following parts:

1) Drive device: Drive the wheel barrel to rotate and drive the sand and gravel to rotate.

2) Wheel barrel: Equipped with blades, through the role of rotation and liquid to clean sand and gravel, to achieve the effect of clean and screen.

3) Speed reducer: Reduce the speed of the drive wheel barrel to meet the production needs.

4) Spray pipe: Spray water flow and cleaning agent into the wheel barrel to assist in cleaning and screening.

2. Different application occasions

The spiral sand washing machine is suitable for processing sand and gravel materials with high mud content, strong viscosity, or different particle thicknesses. Compared with other sand washing equipment, the spiral sand washing machine has a simple structure and a stable operation structure, which can effectively solve the problems of large viscosity and high mud content of sand and gravel materials. At the same time, it has the advantages of high-efficient, low energy consumption and a small occupied area.

Wheel sand washing machine is suitable for processing sand and gravel containing a lot of fine powder and weak viscosity, such as river sand, sea sand, etc. Compared with other sand washing equipment, the wheel sand washing machine has the advantages of simple operation, good cleaning effect, wide cleaning range, and environmental protection of energy-saving. At the same time, it can be unattended to achieve continuous operation with high-efficiency production.

3. The Different effects of washing sand

The spiral sand washing machine is suitable for processing relatively small particles of sand and gravel, which can be graded and screened by the rotation and pushing action of the spiral blade.

The wheel sand washing machine's sand washing effect is relatively thorough, which is suitable for processing large particles of sand and gravel. It uses the high-speed rotating wheel to generate strong collision and impact force, which can effectively remove the attached substances on the surface of the sand and gravel materials, and can also realize the separation and classification of sand and gravel materials.

Spiral sand washing machine and wheel sand washing machine have their own applicable scenarios and advantages, can not generalize which is better, the specific choice should be judged according to the actual situation and needs, you can refer to the following aspects:

1. Equipment price and cost of maintenance:

Spiral sand washing machine: The general price of the spiral sand washing machine is relatively high with stable operation, simple structure, easily maintain, durability, high cleaning rate, and less sand loss.

Wheel sand washing machine: The wheel sand washing machine is usually relatively cheap with relatively convenient maintenance. The impeller has a reasonable design, reasonable structure, high cleanliness, large processing capacity and low power consumption. The entire transmission device (including bearings) is isolated from water and water-bearing materials to avoid damage caused by immersion, sand and pollutants. The screen made of wear-resistant materials has a long service life, and there are basically no other wear parts except the screen.

2. Efficiency of work and processing capacity requirements:

Spiral sand washing machine: The working efficiency of the spiral sand washing machine is relatively high. It is mainly suitable for processing fine-grained sand and gravel. It is usually suitable for large and medium-sized production lines or scenes with high processing capacity requirements. Generally, it is tens of tons per hour to hundreds of tons /hour. It is suitable for large-scale or medium-sized sand and gravel treatment projects.

Wheel sand washing machine: The working efficiency of the wheel-type sand washing machine is low, and it can handle fine and coarse sand and gravel. Usually, the processing capacity is smaller. It is suitable for larger production lines or occasions that require high processing capacity from several ten tons/hour to hundreds of tons/hour. It is suitable for handling large and medium-sized sand and gravel treatment projects or large and medium-volume sand and gravel cleaning needs in industrial production.

3. Special working conditions:

Spiral sand washing machine: Under special working conditions, the spiral sand washing machine has a better effect for processing sand and gravel materials containing higher viscosity and cleaning sand and gravel containing organic substances,

Wheel sand washing machine: Under special working conditions, the wheel sand washing machine is more suitable for processing sand and gravel materials with higher humidity and cleaning sand and gravel containing oil-immersed substances, such as petroleum residue and oil sludge.

To sum up, in general, the two have their own characteristics and different use occasions. We recommend that users should consider the specific needs, characteristics of sand and gravel materials, treatment scope, budget and work efficiency when choosing a sand washing machine. Vanguard Machinery is a professional mining machinery manufacturer with excellent equipment and perfect after-sales quality, we can tailor equipment solutions for you to meet your specific needs.

The Pioneer of Complete Crushing Plant –Jaw Crusher

 Jaw crusher is an indispensable coarse crushing equipment in mine crushing and aggregate production lines. It can be said to be at the pioneer position in the entire crushing plant. As the primary crusher, it can process various ores with compressive strength not higher than 320MPa to medium particle size at one time. Jaw crusher is often combined with cone crushers, impact crushers, sand making machines to form a complete set of aggregate production line, which are widely used in mining, metallurgy, chemicals, building materials, electricity, water conservancy, transportation and other fields. The capacity can be from hundreds of tons to thousands of tons, and the finished products are cubic structure, free of tension and cracks, which have a good shape.

At present, Vanguard Machinery manufactures jaw crushers include PE/PEX jaw crusher and 6CX series European jaw crusher. There are stationary and mobile types that can be chosen based on the operating conditions and actual needs.

Advantages of PE/PEX series jaw crusher:

Deep cavity crushing: Optimized deep cavity crushing, no dead zone, greatly improved feeding and crushing efficiency, and good energy-saving effect.

Mature technology and long service life: Learn from the world's manufacturing technology, digitally analyze the operation of each component, and the internal structure is exquisite, which greatly extends the service life of the equipment.

Strong load-bearing capacity and high stability: Larger forging blanks process heavy-duty eccentric shafts, high-manganese steel jaw plates and high-grade cast steel movable jaw assemblies, and the equipment has stronger load-bearing capacity and higher stability.

Simple structure and convenient maintenance: Under the basic principle of compound pendulum, redundant parts are simplified, the overall structure of the equipment is simple, the crushing ability is strong, the operation and maintenance are convenient, and the operating cost is low.

Customer site of PE/PEX series jaw crusher:

Advantages of 6CX series European jaw crusher:

1. The crusher processes V structure chamber, optimum configuration crushing chamber and trajectory parameters of moving jaw. The super-large crushing stroke maximizes the feeding size, capacity and reduction ratio.

2. Replacing the original rigid foot connection with elastic limit block and rubber damping device which effectively absorbs peak load of vibration, so as to reduce the impact force between crushers and foundation and prolong the equipment service life.

3. Replacing traditional plates with wedges, the discharge opening can be adjusted more simply.

4. Integrative motor cabinet reduces mounting space and makes the power output more stable. Oversized tapered roller bearing with uniform internal and external bearing models reduces the number of spare parts.

Customer site of 6CX series European jaw crusher:

The PE/PEX series jaw crusher has advantages in price. It is suitable for production lines with low investment and low capacity requirements. For large-scale, high-yield, environmentally friendly and energy-saving production lines, the 6CX series European jaw crusher is more efficient, more convenient in operation and maintenance, and more environmentally friendly. Our technical engineers will recommend a more suitable choice for you according to your requirements for equipment capacity, finished product size, budgetary funds, site size. Please feel free to contact us at any time.

Zhengzhou Vanguard Machinery Tech Co., Ltd always adheres to the business philosophy of “cooperation, sharing and win-win”, and strictly follow the policy of “quality first, customer first”. We care about the all-round needs of customers, and implement full-process quality control in accordance with ISO9001 standards to ensure that the equipment supplied brand new, advanced, mature, complete, safe and reliable. We are responsible for every process, every product and every user.

The Diamond Mine Crushing Project with a Capacity of 150 T/H was Launched in the "Land of Gold" - South Africa

 South Africa is one of the world's largest diamond producers and is renowned for its high-quality diamonds. Diamonds are one of South Africa's most famous treasures. South Africa's diamond production once accounted for 90% of the world's diamond production, and the Kimberley Diamond Mine is an important pillar of the South African diamond industry. The Kimberley Diamond Mine is located in the Cape Province of South Africa and is a famous diamond in the world capital, Vanguard Machinery's 150 T/H diamond ore crushing project is located here.

Diamond ore is a metal ore with high hardness. A jaw crusher can be used for coarse crushing, and a cone crusher is required for medium and fine crushing. However, due to limited initial investment and special site conditions, the customer specified an MBP semi-mobile as the secondary crusher. Vanguard Machinery engineer recommended the MBP modular mobile crushing plant that combines "performance, economy, and innovation" based on the actual needs of the customer. This series of mobile crushing plants is a multi-functional integration consisting of one or several crushing and screening unit modules frame structure solutions. It is particularly suitable for multi-point quarries that require regular movement of equipment between different locations. It has significant advantages such as compact structural design, space-saving, no need for foundation installation, and the ability to be quickly relocated and reassembled according to construction needs.

Project overview:

Material: Kimberlite, feed 500mm

Capacity: 150 T/H

Equipment configuration: MBP106 jaw crushing plant + MBP250 impact crushing plant

Live coverage:

Main advantages of MBP series mobile crushing plant:

1. It takes a short time to put into use and creates profits faster (the equipment production cycle is 35 days);

2. Can enter the site at any time and quickly enter production status;

3. The capacity of the entire production line is equivalent to that of fixed equipment, and the power consumption of mobile equipment can be reduced compared with fixed equipment;

4. The power can choose to use a dual-use power mode of gasoline and electricity, and the power sources are diverse;

5. The entire production line only requires 4 people to operate.

About Us:

Vanguard Machinery is a professional manufacturer focusing on the processing of comprehensive supporting equipment such as aggregate production, construction sand, and urban construction waste treatment. The company's main series of products include cone crushers, sand making machines, jaw crushers, MBP semi-mobiles, mobile crushing plants and other equipment, which are widely used in mining, cement, highways, electric power, metallurgy, coal and other industries. The company has won unanimous praise from domestic and foreign customers over the years, and its products are exported to the United States, Russia, Kazakhstan, Tajikistan, Brazil, Argentina, Vietnam, the Philippines, India, Pakistan and other countries.