The aggregate washing machine is a new type of environmentally friendly and efficient sand washing equipment developed for cleaning, washing, dewatering sand, gravel, aggregate, coal, mineral, and fines recovery. The aggregate washing machine is the patent product of the Longzhong heavy industry, and its primary characteristic is that it can well solve the problem of fine sand loss in the sand making industry. Working principle 1. Structural Composition It is composed of high-pressure hydro cyclone separator, dewatering screen, impeller separator, reduction gear, vacuum high-pressure pump, cleaning box, high return water tank, motor, vibration motor, and other components. 2. Working process Sand and water mixture into the cleaning box, by the impeller separator cleaning, sand and mud separation. Sand and gravel material onto the dehydration screen for dehydration treatment. The wastewater (containing a large amount of fine sand, mud, dust, and other impurities) from the overflow of the cleaning box is transported to the high-pressure hydro cyclone separator through the vacuum high-pressure pump, and then the fine sand after centrifugation and classification concentration is discharged into the upper layer of the dehydration screen through the sand-sinking nozzle for dehydration treatment. The rest of the wastewater, mud, dust, and other impurities, through the high-pressure separator overflow…
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The high frequency dewatering screens are uniquely designed dehydration equipment with large capacity and sufficient dehydration. In order to meet the requirements of dewatering and classification of coarse and fine materials, and to achieve the purpose of large processing capacity, good dehydration effect and strong adaptability, high frequency and high vibration strength mechanical characteristics are adopted. Processing capacity: ≤300t/h Application: High frequency dewatering screens are widely used in sand and gravel concentrate dewatering, tailings dry discharge, refining mud concentration, chip removal, carbon slurry separation and other operations. It can also be used in combination with FX series hydrocyclones for more efficient dehydration, especially for handling fine-grained minerals. Improvement: LZZG dewatering screen uses a back plate opening method to allow some water to quickly flow out of the hole, speeding up the dewatering speed, and also avoiding damage caused by water splashing into the motor. Why is the high frequency dewatering screens so efficient? According to the requirements of the mechanical structure and process parameters, the vibrator is arranged above the center of gravity of the screen box. This arrangement makes the trajectory of the screen machine elliptical at the input end, and the middle part is round, and the output end…
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The spiral sand washing machine is a kind of gravel cleaning production equipment which is associated with ore or gravel removing equipment, stone washing machine and crusher and sand making machine.Compared with roller sand washer and other types of sand washer, it has the feature of good cleanness and easy maintenance. Spiral sand washer is used for the desliming and screening of the stone in construction site, sand and stone plant, prefabrication plant and water and electricity construction site, as well as for the grading of ores. How is LZZG Spiral Sand Washer Designed? The LSX series spiral sand washer manufactured by LZZG is designed to provide the most effective pool area and overflow speed requirements. The proper combination of cell depth, area, and spiral structure is important to ensure controlled turbulence in the slurry stream to achieve accurate dimensional separation. The entire equipment is a box-shaped frame structure with a long body and a horizontal structure. It only needs a flat ground and a sewage reuse sedimentation tank. The spiral sand washing machine does not require the use of a screen. The machine structure consists of a tank, a reducer, a motor, a central shaft, a spiral blade and…
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The spiral sand washing and recycling machine developed by LZZG on the basis of innovative screening washing device technology has solved the shortcomings of the current sand washing equipment on the market. The spiral sand washing machine is a multi - functional water washing sand equipment that combines the functions of sand washing, sand and stone materials dehydration and fines recovery. In some special sand washing production lines that are susceptible to environmental and topographical influences, such as mining, aggregate processing, piling mud, river dredging, urban construction waste incineration, ceramic raw material processing, silica sand production and processing, various metal ores, tailings treatment, etc., a new type of sand washing machine with small footprint, simple operation, high efficiency and strong cleaning ability is needed. The machine consists of a spiral sand washer, dewatering screen, and cyclone, which are combined with clever design. Compared with the price of the equipment purchased separately, the choice of the spiral sand washing machine is undoubtedly more cost-effective, and can also be equipped with a single helix or more power double helix according to demand. When the spiral sand washing machine is working, the material inside the spiral washer washing tank is pushed by the…
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The procedure of sand washing is mainly composed of the feeding system, classifying system, sand washing system, finished products conveying system, water cycle system, and wastewater treatment system. The several common procedures of sand washing 1. Hard material, like granite, pebble The usual configuration is vibrating screen-jaw crusher-cone crusher-sand making machine-sand washing machine-sand dewatering vibrating screen and the auxiliary equipment belt conveyor. Cone crusher has a good effect on hard material breaking, low failure rate, wear resistance and long service life of wearing parts. 2. Soft material, like limestone, bluestone The common sand cleaning line configurations are generally recommended, vibrating screen-jaw crusher-impact crusher-sand making machine-sand washing machine-sand vibrating dewatering screen and the auxiliary equipment belt conveyor. 3. Simple sand washing line Hammer crusher-sand making machine-sand washing machine and other auxiliary equipment. Hammer once forming, and configure the sand machine, can ensure the effect of sand production. 4. Mobile sand washing line Equipped with free movement of sand production, sand washing program. Easy to move, high production efficiency, high intelligence, compact coordination between equipment, efficient and convenient. The above is just a simple list of several common mechanisms for sand washing production line configuration. Of course, LZZG will design appropriate sand washing production line solutions…
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The best sand washing process is the plant of obtaining the construction sand that meets the construction standards after the sand is washed by the sand washing machine. The production process, that is, the raw sand is directly fed to the hopper through a forklift or other feeding method. The raw sand in the hopper passes through the discharge port at the bottom of the hopper and is directly transported by the loading conveyor to the sand washer for cleaning. Equipment configuration Hopper 3*3m Sand washer LZ36-75 Thickener S-6000 Filter press G250㎡ * 2 First, feed the crushed sand into our LZ36-75 sand washer to wash the ≤75 micron clay silt and dust out, the overflow slurry will be pumped into the cyclone to recycle the fine sand. After recycling, the waste muddy water overflows to the return box, then stored in a transfer pond through a pipe. Then the muddy water will be extracted by the pump to S-6000 thickener from the transfer pond, a Thickener is a machine based on gravity and sedimentation making solid-liquid separate from each other by using chemical flocculant. Suspended solids settle down into the bottom, while purified water flows away from overflow opening…
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The rotary screen is widely used for the screening of various solid materials with a particle size below 300mm, especially for the stone calculation. the screening capacity is 60 tons / hour ~ 1000 tons / hour. Rotary screens have many features such as high screening efficiency, low noise, a small amount of dust, long service life, small and convenient maintenance. Working principle Generally, the rotary screen is a type of vibrating screen. A coupling couples the motor and drum unit of the rotary screen. During the work, due to the tilting and rotation of the roller device, the material on the screen surface is turned over and rolled, so that the material passes through the mesh hole, and the materials are divided into different levels according to the particle size, thereby completing the screening process. Applications The rotary drum screen is mainly used for classifying the particle size of materials in electric power, mining, metallurgy, building materials, chemical, pharmaceutical, and other production industries. 1. Used for grading of large and small stones and separating soil and stone powder in the stone yard. 2. Separation of lump coal from coal powder for coal industry and coal washing (part of coal washing machinery). 3. Used…
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The working principle of the drum screen is the reason why the rotary drum screen is more efficient. Screening efficiency is an indicator of the quality of the screen work, indicating the extent of screening operations and the quality of the screened product. The sieving efficiency is usually expressed as a percentage of the mass of the undersize product obtained at the time of sieving and the mass of the granules contained in the raw material which is smaller than the size of the mesh. The ideal sieving efficiency is that the particles smaller than the sieve holes can pass through the sieve holes to form the undersize, and the particles larger than the sieve holes remain on the sieve to become the oversize product. The actual screening efficiency is unlikely to reach an ideal state, and a portion of the undersize remains on the screen, resulting in incomplete screening. Therefore, the screening efficiency reflects the completeness of the screening, that is, the quality of the screening. According to different grading requirements, the drum screen has a graded grade of 1-4 knots from fine to thick. Through the variable speed deceleration system, the screening cylinder is rotated at a certain rotation speed, and the material…
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The small trommel screen is a piece of sorting equipment that is classified according to the particle size of the material and is generally suitable for the classification and screening of medium and fine grain materials. It can be widely used in the classification of products in mining, building materials, transportation, energy, chemical, and other industries, especially for grading and screening of ceramsite. And with the characteristics of stable operation, low energy consumption, easy maintenance, and flexible and straightforward process layout. How does the trommel screen work? 1. The motor drives the roller mounted on the frame to rotate around its axis through the reducer and the coupling. 2. Due to the inclination and rotation of the drum, the material entering the drum is continuously turned over and rolled while being deposited from the top to the bottom through the grading screen. 3. Due to different screen specifications, the materials are gradually separated and screened. The materials with acceptable particle size (undersize) are sieved and then dropped into the respective lower hoppers. The unqualified materials (on the sieves) pass through the discharge opening at the tail of the drum. discharge; 4. Due to the turning and rolling of the material…
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The sand washing machine is used for sand aggregate cleaning equipment. However, the stone powder is a derivative of sand and stone aggregate in production. The unwashed stone powder is not suitable for construction materials, but it can be changed into adjustable high-performance concrete sand after cleaning. 1. Appearance and structure The wheel type sand washing machine has a simple structure, less wearing parts, and a small floor space. The impeller transmission device is isolated from water and water-receiving materials, which avoids the damage caused by water, sand, and pollutants, and greatly reduces the failure rate. The sand screw washer is relatively long and narrow, adopting a horizontal structure, simple and straight white, but its installation arrangement is not as convenient as the wheel type. 2. Working principle Wheel sand washing machine can choose to increase the number of grinding wheels according to the condition of sand and gravel. Therefore, the common equipment has a single impeller sand washing machine and a double impeller sand washing machine. It is also possible to install a fine sand recycling system behind the sand washer for fine sand recycling, which is very convenient for docking installation. Sand screw washer machine needs to be arranged…
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The sand recycling system has developed rapidly in recent years and plays a vital role in the artificial sand production line. And it is continuously improving and innovating in order to play a greater role in future production. The fine sand recovery system solves the problem that the traditional sand gravel wet processing and dewatering adopt a spiral sand washing machine, which makes the loss of fine sand challenging to control. In the process of sand washing, a large amount of fine sand is seriously lost, which not only damages the output of the sand, but also seriously affects the extreme matching of the sand, resulting in unreasonable sand matching, and the fineness modulus is coarse and greatly reduced. Too much fine sand emissions can also cause great pollution to the environment, which is contrary to the current awareness of protecting the environment. Adopting the new fine sand recycling system can effectively reduce the loss of fine sand, and it is easy to solve the problem of high fineness modulus of finished sand and low content of stone powder in the artificial aggregate processing system. It also increases the production of sand, improves the quality of the finished products, and brings great economic benefits…
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As an indispensable main raw material in building concrete, sand aggregate plays a very important skeleton and supporting role in buildings, so it is called aggregate. The production line for the production of aggregate is the sand aggregate production plant. This line is popular for transporting aggregates to various industries in a long-term and stable manner. Aggregate, a granular loose material that acts as a skeleton or filler in concrete. Because it plays a skeleton and supports in the building, like the bones of the human body, it is called aggregate. When mixing the cement, the cement is mixed into a thin paste. If it is not added, it will not be formed, which will make it unusable. Therefore, aggregate is an important raw material in the building. Classification of aggregates Coarse aggregate: Also known as stone, it refers to aggregates with a particle size greater than 4.75 mm, mainly consisting of pebbles and artificial gravel. Pebble is a nearly circular or elliptical rock naturally formed by natural weathering or water flow handling: crushed stone is mainly made by mechanical crushing and screening. According to the different applications, the raw materials can be various types of rocks such as limestone,…
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