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  • 4 Tips for Increasing Capacity for Vibrating Screener Nov 15, 2024
    The vibrating screener is usually combined with other equipment like cone crusher into a complete production process, and is also one of the important unit on the production line. The vibrating screen’s efficiency directly affects product capacity and quality. Improving the vibrating screen’s working efficiency can make materials screened more sufficiently,then reduce impurities and defective product,finally improve the product quality. At the same time, reducing the accumulation and accelerate stratification of material results in improving the output of the production line. Then how to improve the efficiency of vibrating screens? Following are four tips for your reference.     1.Optimize screening process Selection of screening media:  We should select the appropriate screen mesh according to material’s characteristics,such as shape,density,size,water content,mud content,etc. High sticky materials are easy to clog the sieve holes, and globular & cube materials are easy to pass the square and circular sieves,but the strip and sheet materials are not easy to pass.So the more easily screening materials,the higher screening efficiency. Therefore,we need to choose the appropriate hole aperture, wire diameter and design, and select the appropriate screen media according to the material characteristics, such as polyurethane screen, rubber screen , steel screen, etc.,finally improve screening efficiency and the service life of the screen. Choose a screen with more holes which can reduce clogging and improve screening efficiency for the fine materials screening.        Inclined angle of the screen: The inclined angle of the screen is related to the processing capacity and efficiency, and is generally within 5-25 °.We can adjust the material’s velocity of flow by adjusting the screen angle,and then improve screening efficiency.   Vibration parameters:  Adjust the vibration frequency and amplitude according to the material characteristics and screening requirements to ensure that the material is evenly distributed on the screening surface and effectively passes through the screen. The design of vibration direction angle needs to consider the properties of the screened material. For fine materials, it is advisable to use larger ones; For materials with strong viscosity or wear resistance, they should be small. Generally,the Horizontal vibrating screen is 30-60 ° . Choose low frequency and high amplitude for graded work, and high frequency and low amplitude for dehydration and media material removal work.   2. Improve operations Constantly even feeding:  Ensure the material enters the vibrating screen uniformly and continuously.Overfeed and underfeed both affect the screen efficiency.  It can be combined with a vibrating feeder or a belt feeder for constant even feeding.  Control the feeding speed:  Adjust the feeding speed according to the material characteristics and screening requirements to ensure that the material has sufficient time on the screen surface for effective screening.   Material preparation:  For materials that are easy to clumping and have strong viscosity, can improve their flow ability on the screen by adding flow ability modifiers and adjusting the water content of the material, thereby increasing screening efficiency.     3. Strengthen maintenance Regular cleaning: Regularly clean the blockages on the screen surface to ensure smooth screen holes and improve screening efficiency. Check the wear part of the screen surface: Regularly inspect the wear of the screen surface, replace the badly worn screen surface in time, and ensure the screening effect. At the same time, check the tightness of the fastening screws of the screen to ensure that it is firmly installed on the bracket. Lubrication transmission system: Regularly lubricate the transmission system of the vibrating screen to reduce wear and faults and improve operational stability.   4. Other techniques Adjusting the phase angle of the eccentric block: Some vibrating screens can adjust the screening efficiency by changing the phase angle of the eccentric block to alter the motion trajectory and residence time of the material on the screen surface. Adding counterweights:  Adding counterweights on the fly wheel and pulley can increase the amplitude of the vibrating screen, thereby improving its processing capacity.   Take care of your equipment anytime, anywhere. For more information, you can also contact your local dealer or Borgers service team!  
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  • 4 Tips for Increasing Capacity for Jaw Crusher Nov 07, 2024
    Jaw crushers are usually used for the primary crushing stage in production lines, and their output directly affects the capacity of the entire production line. Meanwhile, we can reduce equipment idle by increasing output per unit time, thus reducing energy consumption and labor costs, finally improving the overall efficiency. Today, we are glad to share with you a few tips for increasing capacity for Jaw crusher.   1. Optimize the feed size, STUCK NO MORE! Material selection:  Choose dry and low mud materials to reduce adhesion and clogging in the crushing process and improve crushing efficiency. Feed size: Control the feed size less than 85% short side of the crusher inlet size, or oversize material will easy to be stuck at the opening of jaw crusher. 2. Control the feed rate, avoid overfeed clogging Constant right feeding rate:Jaw crushers are intermittent working equipment. Underfeed or overfeed both affect the final capacity. Underfeed results in a light load. Overfeed leads to Material accumulation, can’t be crushed in time.       Therefore, we should strictly control the feeding rate,at the same time, keep a constant feeding rate by adjusting the amplitude of the feeder  (within the feeder amplitude range) according to the output demand of the production line. Normally, when the feeding rate is up to 2/3 of the crushing chamber,the efficiency is the highest.       Meanwhile,we should also avoid the material directly impact the moving jaw when feeding,and prevent the head of the moving jaw when  feeding, and prevent the head of the moving jaw to be damaged. Additionally, adjusting feed angle ensure feeding smooth. 3. Adjust equipment properly, improve processing capacity Adjustment of CSS and the angle between the movable jaw plate and the fixed jaw:Due to CSS of jaw crusher determines the production capacity,we should make appropriate adjustments for CSS according to the demand size for two-stage crushing. The angle (between the moving jaw plate and the fixed jaw plate) is generally within the range of 17-26 °. Appropriately increasing the CSS size, reducing the angle and crushing rate can improve production efficiency. Adjustment of eccentric shaft speed:  Increasing the eccentric shaft speed appropriately is good for improving material crushing efficiency. But it should be noted that excessive speed may make materials not be discharged in time, causing material blockage and reducing production capacity. 4. Regular maintenance equipment Jaw plate adjustment and replacement:Regularly maintain and inspect the equipment to ensure that it is in good condition. Regularly check the wear status of the jaw plate and take some measures according to the wear situation, such as turning around, exchanging or replacing the jaw plate, which helps to maintain the crushing efficiency of the crusher. Lubrication and maintenance: High quality lubrication is the key to ensure the performance and service life of bearings. In daily equipment operation, the bearings of jaw crushers should be regularly lubricated and maintained to ensure their normal operation. Take care of your  jaw crushers anytime, anywhere. For more information, you can also contact your local dealer or Borgers service team.    
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  • A Short History of Screening Sep 25, 2024
    The beginning of the story of screening predates recorded history, but it almost certainly originated with mans early efforts to extract clays and minerals from the raw earth. The first recorded reference to screening dates back to 150 BC, when descriptions of Greek and Roman mining methods tell of crude sieves of woven horse hair, planks and hides punched full of holes being used for particle separation. The first use of woven wire screens  is attributed to the Germans in the fifteenth century.    The first mention so far found of mechanically shaken screens is in the Englishman John Smeaton's diary of his  "Journey to the Low Countries" in 1775. At Rotterdam in the Netherlands, he found the Dutch pulverising  volcanic rock in stamp mills, and using screens in closed circuit.  He called them sieves. By method of a cord  tied to a stamp mill, the head of the end of a declined screen was raised 150mm or so when the stamper went up, and dropped back with a jog when it went down. The screen was hinged near the lower end. The undersized material dropped into a hopper below, while the oversize was shovelled back into the stamp mill.    This piece of history is worth recording here, because it shows that the fundamental idea of a vibrating screen, as well as the advantages of closed circuit crushing were known in Europe over two hundred years ago.    Following this, various attempts were made to shake or vibrate screens by methods such as impact with hammers, tappets or cams. Some screens of this type were put into operation in the late 1890's and early 1900's.    From 1900 on, many methods of screening were tried. Barrel or rotary drum screens, and slow speed shaker screens were among the popular units.    About 1910 the first truly modern vibrating screens (500 rev/min.) and faster started to make their appearance. These early  vibrating screens took several forms.    The first and simplest of this type was the forerunner of today's two bearing circular motion screens. It was vibrated merely by a shaft with an off-centre weight. When the shaft was revolved rapidly, it shivered or vibrated whatever was attached to it. Hence when rigidly attached to the screen frame, the weights vibrated the screen. The simplest  frame was a wooden box, one side open at the lower end, and with a screen cloth fastened to the bottom. About halfway down the top of the screen box was a plank  with a shaft supported between two bearings, and driven by  a belt and pulley. The whole rig was mounted on wagon springs top and bottom.    The next type of mechanical vibrating screen developed was the four bearing positive throw type. On this machine the screen itself takes the place of the off centre weights as it rides around the circle of its eccentric shaft. The underlying principle was that the screen travelled in an orbit or vibrating motion equal to the eccentricity of its shaft on which the screen body rode. Counterweights were employed either as part of the drive shaft or as unbalanced flyweights at the end of the shaft to absorb the vibration of the screen.    The third type of vibrating screen experimented with  in the early part of the twentieth century was the electric vibrating screen. This unit depended upon electric magnets and moving armatures for its vibration. The screen cloth was held in tension and the reciprocating armature was attached to the screen surface not far from the centre, flexing it every cycle.    During the 1920's and 30's improvements were made in the design of these types of screens. The screen frame was improved and the vibrator simplified by better lubricating methods and bearings. At this time machines for hauling and crushing aggregates were relatively small, and so 0.9m to 1.5m wide screens were all that were necessary to handle the tonnages.    In the early 1930's experimentation began with the development of a screen that could do both sizing and de-watering jobs, and operate on the horizontal (or near horizontal) rather than relying on gravity to convey the material. It achieved material travel by a linear rather than circular vibratory motion.    These screens were promoted because of their great advantage in saving head room. Development of this type of machine was continued to a point where in the early 1940's, the low angle linear motion screen became an accepted piece of equipment for de-watering coal and in other mining preparation plants.    By the 1940's vibrating screens had become an important part of most processing plants, and were replacing the older less efficient screening machines such as shaking screens and trommel screens. As the size of machines for digging, hauling and crushing increased, and the techniques for building screens developed, 1800mm wide units became popular and necessary to handle the increased tonnages.    Through the 1940's and 50's all the basic types of vibrating screens mentioned continued to be improved and developed in design. By this time the four bearing positive throw screen had established itself as the industry standard for tough heavy duty applications - but during the 1960's there was again a demand for larger (2.4m wide) screens, and the four bearing machine was replaced by the two bearing screen which had previously been used for many years only on lighter duties. The two bearing units quickly  proved that they were capable of performing any job that a four bearing machine could do, and at less initial cost.    In the late 1950's and early 60's the free resonance type of screen was introduced. Its great appeal was that it required very little power because it generated most of its vibratory motion by the interaction of two elastically connected actuated masses. However because of high maintenance, high first cost, and precise adjustments required, this type of screen has lost it popularity. It could however emerge again  if electrical energy becomes a major operating cost.    The 1980's saw a further push for even larger screens, and today 3500mm and wider models are built. Another recent development has been the introduction of the 'banana' screen. It uses a linear motion similar to the low angle screen, but differs in that the initial section of the screening surface is steeply declined, and this is followed by a subsequent  relatively flat section at the discharge end.  Banana screens can offer considerable advantages for applications where there are large tonnages of fines to be separated from the feed, and can satisfactorily handle materials with high surface moisture and difficult to screen inclusions of clay and dirt.    While there has been an increase in screening application knowledge coupled with gradual improvements in the design of such things as anti-friction bearings, development of high quality steels, improvement in methods of manufacture such as welding and high strength bolted connections - the design of the mechanical vibrating screen remains pretty much the way it was at its early concept.    Today the manufacturers of vibrating screens continue to search for ways to better separate the product through such methods as higher speed, greater throw, altering the method of presenting particles to the apertures, changing the motion of the screen surfaces, and innovations such as bi and tri-sloped decks.     THE FUTURE Looking to the future it is visualised that while the basic design concepts of vibrating screens will remain the same, more emphasis will be placed on a number of areas.    Larger Screens:  A future trend towards even larger machines is probably inevitable. This does not imply however that it is possible today to build screen of any desired size. This is not feasible for a number of reasons: (a) The larger the screen the greater will be its mass, and the mass must be accelerated by drive units. The present generation of large screens already require multiple connected drive units because large antifriction bearings suitable for the speed are not available in the sizes that would be required for a single drive unit.   (b)  When large vibrating screens operate, they will displace large air volumes. For example a unit having 30 square metres will displace 0.15 cubic metres per revolution, or 150 cubic metres per minute. This is enough to produce air pulsations inside a building which would forbid the presence of workers in the surroundings and cause window panes to break.   (c) The wider the screen, the larger must be the components between the side plates. For instance, the larger the deck frame cross members, the smaller will be the free passage between the cross members and the undersize particles will then be hindered from passing through the apertures. The result is that a greater percentage of the screening area will be effectively blinded.    For these reasons screen size limitations are to some extent unknown at this stage (the largest screens todate are limited to around 5.5m wide), but will no doubt be subject to the normal progressive trends to meet the demands of larger outputs that will occur in the industry over the decades to come.    There are a number of reasons why fewer larger screens are more economical than a greater number of smaller screens, and these include a savings in space, less supporting structure and chute work, they are easier to feed and have less wearing parts.    Screening Media:  Attention will continue to be given to the types and construction of screening media. A major change came some years ago with the introduction of rubber, and later polyurethane materials as options replacing the long time use of steel wire and perforated plate.    Originally the rubber and polyurethane screening media were of the cross tensioned type, employing large mats spanning the width of the screen. A recent innovation has been the introduction of modular panels of small easily handled dimensions. These are secured by a variety of methods - but all allow for the modules to be moved around into different positions on the deck to ensure that maximum life is achieved from the whole.    Developments will continue in this area. With correctly applied screening media a much longer life can be achieved, and there are subsequent cost reductions in labour brought about by the increased intervals between panel changes.    Screening Efficiency:  It is envisaged that in the future higher efficiencies of vibrating screens will be a subject of some attention. This will particularly apply to large fixed installation plants where high capital costs are involved and the plants are fully automated.    Environmental Restrictions will continue to increasingly enforce limits on noise, dust emissions, and plant operating hours.    The manufacturer that can successfully bring about improvements in the above areas will enjoy a decided advantage when the final choice of screen is decided.  
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  • How to Ensure Multi Cone Full Capacity Sep 19, 2024
    Hello! As one of the key equipment in the production line, the efficiency of the multi-cylinder cone crusher directly determines the speed and efficiency of the subsequent processing steps. It is important to focus on improving the efficiency of the multi-cylinder cone crusher in daily operation, as this can significantly enhance the overall efficiency and production capacity of the entire production line. Today, we would like to share a few tips for improving the efficiency of the equipment. Optimize Operation: Power Control: To increase power, it is important to have sufficient feed rather than reducing the discharge opening. A smaller discharge opening may increase power but reduce throughput. In the operation of the cone crusher, power should be strictly controlled. The optimal power range is around 70-80% for medium crushing and within 80-90% for fine crushing. During operation, the power of the crusher should be adjusted based on the variation in feed rate, ensuring a stable driving power and preventing operation beyond the rated.     Feed Level Control: Maintaining a high level of material in the crushing chamber of the cone crusher is recommended. It is advisable to have a material height exceeding 300mm above the distribution plate to achieve "full chamber" operation and enhance crushing efficiency. The feeding should be filled completely and dropped vertically onto the distribute.       Adjust Closed Side Setting: Keep the parameters of the close-side discharge port unchanged to maintain a consistent product size. According to production needs, adjust the size of the discharge port appropriately to match the discharge ports of intermediate and fine crushing, thereby improving the overall capacity of the crushing system.   Improving feeding conditions:  Uniform feeding: Ensure a uniform feed rate to avoid fluctuations in equipment load and improve crushing efficiency. The feed point should be aligned with the center of the cone crusher's inlet to reduce ineffective movement of the material within the crushing chamber. Control of fines content in feeding: Proper control of the fines content in the feeding can reduce blockage and wear in the crushing chamber, prevent equipment overload, and improve crushing efficiency.        Regular mainternace of equipment: In addition to optimizing operations, it is important to regularly maintain the crusher, inspect the wear condition of each component, and promptly replace severely worn parts to ensure that the equipment is in good condition. When the crusher is blocked or shut down with material still inside, it is necessary to perform chamber cleaning before restarting the crusher to keep the crushing chamber unobstructed.   Optimizing the production process: Optimizing the capacity of the buffer bin: Ensuring that the material level in the buffer bin is maintained at a certain level allows for a continuous and stable feed of material into the crusher, improving the overall efficiency of the production line. Additionally, real-time monitoring of the crusher's operation status and production data, such as power consumption, material level, and product particle size, enables timely adjustments to production parameters and equipment conditions based on the monitoring results.   BORGERS "Take care of your equipment anytime, anywhere. If you need more information, you can also contact our service."        
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  • How to Choose Right Wear Parts for Jaw Crusher? Sep 13, 2024
    Borgers Jaw crushers Typical solution is to start with manganese steel linings to run the process up to target capacity and gradation. The maximizing of chamber life takes place when the process is stable. Several low alloys of quenched and tempered steel as well as tool steel and chromium iron are available for specific applications. Jaw Plates for Jaw Crushers The crushing chamber is composed of a Stationary /Fixed Jaw (frame side) and a Movable/ Swing Jaw (pittman side), and they may be one piece or more, depending on the crusher size and design. Its longitudinal profiles are designed taking into account the best combination of the nip angle, differentiated wear profiles between stationary/swing, therefore maximizing the crusher productivity, as well as providing the best exploitation of the wear material. There is a wide variety of transversal tooth profiles to ensure your productivity and operational costs to be optimized for each application type. It is important to have similar transversal profiles for the used pairs (stationary and swing jaws) so that we may obtain the correct combination to avoid any harmful effort to the equipment, as well as to achieve the best product quality. Following, you many find charts of the main transversal profiles and their corresponding features. C Crusher product Line Standard Profile – Suitable for both rock and gravel crushing, – Well balanced wear life, power requirements and crushing stresses, – Typical factory installation       Recycling Profile – Suitable for concrete crushing, – Fine material flows easily through the cavity along the large grooves.         Quarry Profile – Suitable for blasted rock crushing in quarries, – The flat teeth have a better performance with abrasive materials (more wearable tooth material), – Causes high stresses and increases power requirements.           Super Teeth Profile – Suitable for general use and especially a good choice for gravel crushing, – Large mass and special design of the teeth provide long wear life and make fine material flow down through the cavity along the grooves without wearing the teeth.   Note: Not all profiles are available for all crusher models. For more detailed information please consult with us.    
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  • Factory Hot Sale Mobile Tracked Jaw Crusher BGJ1475E Factory Hot Sale Mobile Tracked Jaw Crusher BGJ1475E Jul 23, 2024
    BGJ1475E is a kind of compact and powerful tracked mobile initial jaw crusher. BGJ1475E Integrating the jaw crusher host, heavy-duty vibrating grate feeder, and integrated pre-screening system can ensure optimal output for quarrying, mining, blasting, and recycling applications. The compact size, fast installation, easy transportation, and easy maintenance make it an ideal choice for small and medium-sized enterprises. Its main features:  1. Electrical supply that can provide for all the operating hydraulic needs of the plant.       2. Compared with equipment driven by diesel on tracking and operation,the equipment provides a large power cost reduction for customers.       3. Maintain tracked equipment’s ease of transportation and superiority of starting production quickly in sites.       4. Supply external power in operation while turning engine off. Save maintenance costs greatly through reduce running time of engine and hydraulic system.        5. Electricity drive in operation makes keeping high crushing efficiency available in high-altitude areas.       Effective could be applied to series of construction companies. For instance, the cement factories and building companies would need to use it to accomplish completed tasks. It enable the customers to earn more profits since the energy consumption is reduced. During the researching and manufacturing,Borgers believe that we should connect our designs with the market demand.
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  • Hybrid Drive Crushers and Screens Are the Future Hybrid Drive Crushers and Screens Are the Future Jul 04, 2024
      Hybrid Drive Crushers and Screens Are the Future -------Electric powered and hybrid dive mobile crushers and screens are on the rise.   The Hybrid drive Crusher: Revolutionizing Crushing Operations   In the realm of crushing machinery, the advent of a hybrid drive system has brought about numerous advantages that are revolutionizing the industry. Let's delve into the key benefits that make hybrid drives a compelling choice for crushers.   1. How does a hybrid drive work?   A hybrid drive (also diese-electric drive) consists of a diesel engine that poweres a generator. The electricity produced runs all electric motors for the main and auxiliary drives. Optionally, a hybrid machine can be also operated via an external power source such as a central generator or the electric grid.     2. Advantages of Hybrid drive Crushers   One of the primary advantages is the significant improvement in energy efficiency. Hybrid drives combine the power of traditional fuel sources with electric power, allowing for intelligent energy management. This means that during peak load operations, the crusher can draw on both sources to ensure maximum productivity, while at times of lower demand, it can rely more on the electric component, reducing overall fuel consumption and operational costs.   Another notable advantage is the enhanced control and precision offered by hybrid drives. The integration of electric motors provides smoother and more accurate speed control, enabling the crusher to adjust its output to meet specific requirements with greater finesse. This not only optimizes the quality of the crushed material but also reduces wear and tear on the equipment, extending its lifespan.   Furthermore, hybrid drives contribute to a reduced environmental footprint. The decreased reliance on fossil fuels leads to lower emissions, making crushers more environmentally friendly and compliant with increasingly strict environmental regulations. This is a crucial factor in today's world, where industries are under pressure to adopt sustainable practices.   In terms of performance, hybrid drives offer superior torque and power delivery. This enables crushers to handle a wider range of materials and challenging crushing applications, increasing their versatility and productivity in diverse operating conditions.   Moreover, the noise and vibration levels are typically lower with hybrid drives compared to conventional systems. This creates a more pleasant working environment for operators and reduces the potential for noise pollution in the surrounding area.   In conclusion, the advantages of a hybrid drive in a crusher are undeniable. From enhanced energy efficiency and precise control to environmental sustainability and improved performance, it is clear that this technological advancement is shaping the future of the crushing industry, offering a more efficient, reliable, and eco-friendly solution for various applications.   Here are  Borgers Hybrid drive Crushers and Screens   Dominate your job-site with mobile crushing & screening equipment that maximizes profits and minimizes downtime Hybrid Trcacked Mobile Jaw Crusher BGJ1475E Hybrid Tracked Cone Crusher BGC2260E Hybrid Large Capacity Mobile Tracked Screener BGS500E
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  • What are the three types of jaw crusher? Feb 09, 2023
    The three types of jaw crushers commonly used in mining and quarrying operations are:   1. Blake Jaw Crusher: The Blake jaw crusher features a fixed jaw and a movable jaw pivoted at the top. The crushing chamber has a larger opening at the top and progressively narrows towards the bottom, allowing the material to be crushed more efficiently.   2. Dodge Jaw Crusher: The Dodge jaw crusher has a fixed jaw and a movable jaw, similar to the Blake jaw crusher. However, the movable jaw is pivoted at the bottom instead of the top. This design creates a larger opening at the top and a smaller one at the bottom, enabling the material to be crushed with both compressive and rubbing actions.   3. Universal Jaw Crusher: The universal jaw crusher, also known as a toggle jaw crusher, features a fixed jaw and a movable jaw which can be adjusted to different positions to achieve the desired discharge size. This type of crusher has a high crushing capacity and is commonly used in quarries and aggregate processing plants.   As a leader in kinds of crushers and screeners industry, Borgers dedicated to providing high-quality,innovative,and sustainable products and services to our customers. Since our establishment in 2010, we have continuously explored and innovated to meet customer needs and promote industry progress. Welcome to consult us!  
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