Introduction to several commonly used belt conveyor cleaners in the cement industry Belt conveyor is a commonly used equipment in cement plants, with the advantages of large transportation volume, simple structure, low cost, and low operating expenses. It is widely used in material transportation in the cement industry and is the main conveying equipment in the industry. However, it also has some disadvantages, such as serious material carrying, especially when transporting sticky and wet materials, causing serious accumulation of material in the head wheel, idler and other parts of the belt, seriously affecting production operation, increasing labor intensity of workers, and increasing safety risks in cleaning operations. Especially during the rainy season, the increase in moisture content of materials leads to an increase in material viscosity, and the phenomenon of belt sticking becomes more severe.The problem of belt conveyor cleaning is a technical problems in various cement enterprises. The following is the the definition, classification, structural principles, characteristics, and scope of application of mainstream belt conveyor cleaners .
???? **Understanding Stainless Steel Hose Pipes: Key to Success in Metallurgical Industries** ???? In the fast-paced world of metallurgical and energy sectors, the choices we make in materials directly impact our operational efficiency and safety. Enter the **stainless steel hose pipe**—a must-have for professionals seeking reliable solutions in fluid and gas transportation. ???? These versatile components shine where others falter, thanks to their **exceptional corrosion resistance**. ???????? Say goodbye to leaks and hello to long-lasting integrity, even when exposed to aggressive chemicals and extreme temperatures. The durability of stainless steel is unmatched, ensuring your systems remain safe and efficient. But that’s not all! Flexibility is another standout feature of stainless steel hose pipes. ????♂️ Perfect for tight spaces and complex installations, their ability to absorb vibrations keeps your systems running smoothly while extending their lifespan. Hygiene is crucial, especially in industries where the cleanliness of transported materials affects end products. Stainless steel hose pipes are easy to clean and sanitize, ensuring your materials remain uncontaminated and pure. ????✨ When selecting the right hose pipe, consider factors like diameter, operating pressure, and temperature range. Pairing these with the right fittings and connectors is essential to uphold system integrity and performance. In summary, stainless steel hose pipes are not just components; they are the backbone of reliability and efficiency in harsh industrial environments. By leveraging their unique properties, you can optimize your operations and meet the rigorous demands of your industry. ???????? Discover more about the applications and benefits of stainless steel hose pipes here: [Understanding Stainless Steel Hose Pipes]( https://bit.ly/3B8u5Jj) #StainlessSteelHosePipe #MetallurgicalIndustry #EnergySector #FluidTransport #OperationalSafety #CorrosionResistance #Hygiene #Flexibility #HighTemperatureResistance #IndustrialSolutions
Each vertical roller mill operates in a unique environment where mill performance depends on a delicate balance of material characteristics, mill configuration, and operating conditions. Before materials even enter the mill, analysis of their properties, such as hardness, moisture content and particle size distribution, sets the stage for selecting the most effective grinding components. Without this data, mills risk inefficiencies such as overgrinding or accelerated component wear. The mill configuration must also be carefully evaluated. This includes assessing everything from roller dimensions to classifier settings. These technical details can have a noticeable impact on how efficiently a mill processes materials and how much energy it consumes. Careful consideration of these parameters has the power to transform mill operations. Through the continuous refinement of data analysis and configuration strategies, the industry is steadily progressing towards a more sustainable and innovative approach to material processing. #engineering #cement #grinding #preventivemaintenance
???????????????????????????????????? ???????????? ???????????????????????? ???????? ???????????????????????????????????? ???????????????????? ????????????????????????????????????: ???????????? ???????????????????????????????? ???????????????????????????????? ???????????? ????????????????????????????????????! In the challenging environments of plants, stainless steel equipment faces constant exposure to external corrosive substances. To ensure the longevity of these vital assets, external coatings play a pivotal role. When facilities handle aggressive chemicals like sulfuric acid or sodium chloride, applying protective coatings such as epoxy or polyurethane becomes critical. These coatings act as a barrier, shielding stainless steel tanks, pressure vessels, and piping from direct exposure to corrosive agents. Here’s why proper coating matters: Enhanced Durability: Coatings significantly boost resistance to localized corrosion, ensuring your equipment withstands harsh conditions over time. Cost-Effective Maintenance: By preventing corrosion, coatings reduce the need for frequent replacements and repairs, saving your facility valuable time and resources. Operational Reliability: Well-coated assets maintain their integrity, contributing to uninterrupted operations and enhanced safety across your plant. Investing in the right external coatings for your stainless steel assets can dramatically extend their service life and ensure reliable performance. Let’s prioritize the protection of our equipment for sustainable success! ???????? Prepared By Chetan V #OilandGas #Stainless_Steel #Coating #Painting #Duplex_Coatings #SweepSandblasting
**MY EXPERIENCE ** Ball Mill Calculations: *Dry Process:* 1. Ball mill capacity: 250 tph (tons per hour) 2. Ball mill discharge: 220-240 tph (88-96% of capacity) 3. Material inside ball mill: 30-40 tons (12-16% of capacity) *Wet Process:* 1. Ball mill capacity: 250 tph 2. Ball mill discharge: 200-220 tph (80-88% of capacity) 3. Material inside ball mill: 50-60 tons (20-24% of capacity) *Water Requirement for Wet Ball Mill:* 1. Water-to-cement ratio: 0.35-0.45 (typical range) 2. Water requirement: 85-120 liters per ton of ore (lt/t) 3. Total water requirement for 250 tph: 21,250-30,000 liters per hour (lt/h) or 5,625-7,500 gallons per hour (gph) *Ball Mill Power Consumption:* 1. Dry process: 1.8-2.2 kWh/t 2. Wet process: 2.5-3.5 kWh/t *Ball Mill Efficiency Factors:* 1. Fill level: 30-35% 2. Grinding media: 30-40% of mill volume 3. Lining condition: smooth, ribbed or stepped 4. Speed: 70-80% of critical speed 5. Feed size: -10 mm (dry), -10 mm (wet) *Wet Ball Mill Operating Parameters:* 1. Slurry density: 1.5-2.0 g/cm³ 2. Solids content: 60-70% 3. Flow rate: 200-250 m³/h 4. Pressure: 1-2 bar *Note:* - Calculations are approximate and may vary depending on specific ball mill design, ore characteristics, and operating conditions. - Consult equipment manufacturer and conduct pilot-scale testing to determine optimal operating parameters.
When choosing between a rubber-lined or metal-lined slurry pump for a mineral processing project, consider the following factors: Slurry Composition: Rubber Lining: Best for slurries with low to moderate abrasiveness. Rubber is resistant to corrosion and can handle particles that are not too hard. Metal Lining: Suitable for highly abrasive slurries, as metals (like chrome or stainless steel) provide better wear resistance. pH Level: Rubber linings can be affected by certain chemicals. If your slurry has a low pH (acidic), a metal pump might be more durable. Operating Conditions: Consider temperature ranges. Rubber can degrade at high temperatures, while metals typically can withstand more extreme conditions. Maintenance and Replacement: Rubber linings can be easier and cheaper to replace. Metal linings may have a longer lifespan but can be more expensive to repair. Cost: Rubber-lined pumps are generally cheaper upfront, but metal pumps may offer better durability and lower long-term costs in abrasive applications. Flow Rate and Head Requirements: Ensure the pump can handle the required flow rates and head pressures for your specific application. You can consult with us for guidance based on your specific slurry characteristics and processing needs. #slurrypump #qualitypumps #miningindustry #Minerals #Heavydutymining #Miningtechnology #pumpservice #pumpsupplier #slurryremoval #coalminingservice #mineralprocessing #miningcontractor #pumpingservice #slurrymanagement #slurryspecialist #gold #ore #flotationplant #OreProcessing #machining #sludgepump #mudpump #oem
Exploring the Benefits and Applications of Stainless Steel Seamless Pipes Stainless steel seamless pipes are indispensable across numerous sectors due to their exceptional properties and versatility. From oil and energy to shipbuilding and pharmaceuticals, these pipes excel in demanding environments. ???? Applications: Oil & Energy: Essential for transporting oil and gas, stainless steel pipes offer unparalleled corrosion resistance and high-temperature endurance, crucial for maintaining safety and efficiency in the field. Shipbuilding: Their excellent corrosion resistance and toughness make them ideal for marine applications. Pharmaceuticals: Used for drug transport, ensuring hygiene and safety. Agriculture: Keeps crops fresh by providing clean and reliable transport. Water Conservancy & More: Reliable for water transport and various other industrial applications. ???? Advantages: Corrosion Resistance: Withstands harsh environments and corrosive substances like acids and chloride ions. High-Temperature Performance: Maintains integrity and performance under high thermal stress. Strength & Reliability: Offers superior tensile and bending strength, minimizing risks such as oil leakage and explosions. In short, stainless steel seamless pipes are a game-changer in enhancing efficiency, safety, and reliability across diverse industries. For more insights or to discuss further, feel free to connect! ???? ???? /zalo/wechat/mob:+86 195 492 #stainless #steel #seamless #pipe #tube #flange #fitting
The chemical processing and storage sector demands optimal asset performance while keeping costs in check. Stainless steel tanks offer excellent corrosion resistance but can be costly and heavy. ARCOR's high-performance epoxy coating systems present a cost-effective solution by allowing the use of more affordable carbon steel tanks without compromising protection. This strategic shift results in significant cost savings and operational benefits. Key Benefits: - Cost Savings: Reduced capital, manufacturing, and transportation expenses. - Quick Installation: Single-coat systems for streamlined setup and rapid service resumption. - Increased Payload Capacity: Lighter carbon steel tanks enable larger payloads. - Longevity: Epoxy coatings offer lasting protection against chemical corrosion, extending asset lifespan. - Easy Maintenance: Simple repairs for localized damage, minimizing downtime. Technical Advantages: - Chemical Resistance: Ability to withstand a wide range of aggressive chemicals. - Strong Adhesion: Formulations designed for enduring coating performance. - Custom Solutions: Tailored epoxy systems for various chemical environments. Proven Applications: - Chemical Barges: Lower costs, higher payloads, and faster turnarounds. - Marine Vessels: Protects fish oil holds and process systems without the need for stainless steel. - Industrial Separators: Cost-effective and durable coating solutions. - Baghouse Liners: Enhanced corrosion and abrasion resistance at a reduced cost. Consider ARCOR's epoxy coatings for efficient asset management, cost-effective corrosion protection, and enhanced operational efficiency in chemical processing. #epoxycoatings #corrosionprotection #steeltanks #chemicalprocessing #assetmanagement #industrialcoatings #ARCOR
It is important to maintain clean and dry cow alleys in a milking barn. Cows will drag manure from dirty alleys onto their free-stall bed, which can result in unhealthy udders and feet.
This Factsheet discusses the products available for manure handling in robotic milking barns at the time of printing. The ministry does not recommend or endorse any specific product.
Free-stall barns where cows are milked robotically require different cleaning strategies than barns where the cows are milked in a parlour. Since the free-stall area of a robotic barn is never free from cows, cleaning with a tractor or skid steer is not recommended. The layout of many robotic barns makes it difficult to clean the barn using traditional alley scrapers, because barn layouts make use of large open areas in front of the robotic milkers (Figure 1) and often have larger cross-overs than in parlour barns. As a result of these layouts, many robotic milking barns have slatted floors for better manure removal.
Slatted-floor barns originally were designed with narrow alleyways that concentrated cow traffic to push the manure through the slats. As interest in cow comfort increased and lying times in stalls lengthened, reduced cow movement in the alleys resulted in a greater build-up of manure in the alleyways. The most effective way to deal with this manure build-up is to use some form of scraper to push the manure down through the slats.
Automatic alley scrapers with a cable or a shuttle drive are the most popular. These scrapers do not have to be as rugged as regular alley scrapers since they do not drag manure down the barn alley, but rather push the manure through the slats.
Automatic alley scrapers are effective in pushing manure through slats, but they still involve cables or shuttle arms that have to be maintained as well as corner wheels or other drive mechanisms that have to be installed outside the cow area so as not to be a hazard to cow traffic, adding to the size of the barn. A disadvantage of automatic alley scrapers is that they cannot remove manure from cross-overs and holding areas.
Robotic slat cleaners address the disadvantages of automatic alley scrapers. They do not require cables or drive wheels and can deal with cross-overs and any large open areas adjacent to robotic milking units. They can be programmed to scrape the areas in the barn where manure builds up the most, such as next to the free-stall curb, more frequently than other areas of the barn. This keeps the slats and, consequently, the cows cleaner.
Robotic slat cleaners are not intrusive. They do their job quietly and have little effect on cow behaviour. In fact, the only time cows become concerned is when the robotic slat cleaner is not moving. If a robotic slat cleaner encounters a cow lying in the alley or some other obstacle, it will either try to go around or try several times to push it out of the way. If the cow or obstacle still will not move, the robotic cleaner will shut down and wait for the producer to take action.
At the time of printing (June ), there are two types of robotic slat cleaners currently used, the JOZ-tech, also distributed as the DeLaval RS250, and the Lely Discovery. Basic parameters for both types are shown in Table 1.
Table 1. Robotic slat scraper parameters Parameter JOZ-tech Lely Discovery Length 129.5 cm (51 in.) 127 cm (50 in) Width 71.9 cm (28.3 in.) 88.1 cm (34.7 in.) Height 59.9 cm (23.6 in.) 54.6 cm (21.5 in.) Scraper width variable 88.1 cm (34.7 in.) Weight 408 kg (900 lb) 272 kg (600 lb) Driving speed 13 fpm 35-60 fpm Tank capacity 79.5 L (21 USG) 30.3 L (8 USG)JOZ-tech (DeLaval RS250) - The JOZ-tech robotic slat cleaner (Figure 2) navigates using a series of transponders installed in the floor. Using a remote-control device, the operator moves the robotic slat cleaner around the barn to lay out its initial route. An antenna on the unit picks up the signal from each transponder it passes over, which sends the scraper unit a command to either turn or continue in a straight line.
The unit has three wheels. The single front wheel is a drive and steering wheel about 30.5 cm (12 in.) in diameter and 20.3 cm (8 in.) wide, filled with foam. Sensors in the wings of the scraper blade keep the unit tracking along the stall curbs and walls. The two rear wheels count revolutions to track distance travelled.
If the JOZ-tech becomes stopped or disoriented for some reason, an operator can steer it to the next transponder using the remote control and the unit can adjust its route from that point.
The JOZ-tech uses a deep-cycle marine battery that must be charged for a continuous 6 hr each night, plus for 30 min. several times throughout the day, as it navigates its route, giving it a total of 16 hr of cleaning time per day.
Lely Discovery - The Lely Discovery (Figure 3) navigates by a combination of gyroscope, ultrasound device and wheel revolutions. The gyroscope is used to maintain orientation, ultrasound is used to determine the distance away from walls and curbs, and to keep the unit tracking along stall curbs, and the wheel revolution count is used to track distance.
Jiafu supply professional and honest service.
Using a remote-control device, the operator moves the unit around the barn to lay out its initial route. A series of "bump" points are programmed into the route to tell the unit to change direction. In this way, the robotic slat cleaner can be programmed to do alleys multiple times along the curb and to return to the charging station as needed.
Powered by two separate electric motors driving two gel-filled wheels, the unit turns by varying the rpm of each individual wheel.
If a Discovery loses its position in a barn, an operator uses the remote control to direct it to a "bump" point to continue its route.
The unit can function 40% of the time and has to charge for 60% of the time.
Dry manure stuck on slats can be difficult for robotic slat cleaners to remove. Hot, dry weather and summer cooling fans in barns can dry out the manure on the slats. When this happens, it can be more difficult to push manure down through the slats, and the tires may spin on the dry manure, causing the robotic slat cleaner to lose its position, as the revolution count on the wheels no longer represents distance travelled.
To address challenge, both units have a water spray system. Water tanks can be refilled during or after charging, and water spray applied to the floor to soften dry manure. The JOZ-tech system has both front and rear spray nozzles, and the Lely Discovery system has nozzles spraying just in front of the scraper blade.
Not all robotic milking barns have slatted floors. Some producers use sand bedding for cow comfort, and other producers have installed robotic milkers in existing barns with solid floors. Still others have built new barns with solid floors. Sand bedding is not compatible with slatted floors, and solid floors require a manure-removal system other than tractors or skid steers. The two best alternatives for collecting manure from solid-floor barns are automatic alley scrapers and flush systems. With either system, the layout will have to be modified to eliminate large open areas that neither the alley scrapers nor the flush system can reach.
To keep the cows clean, dry and comfortable, structure alley floors so all liquid can drain off. It is recommended that the alley floor have at least 1% of slope, end-to-end, so the liquids will drain to the transfer point. The alleys should also slope about 0.4% to the centre to allow liquids to drain away from the stall curbs. Some producers want to have flat floors, but this usually results in ponds of water that collect between scrapings, as a floor can never be poured perfectly flat, and the liquid has nowhere to go. Other producers argue that the floors can dry out too much and become slippery. This seldom happens but does occasionally occur on outside alleys on windy, dry summer days. Some producers run a polyethylene pipe drilled with small holes along the outside wall that they use to wet the area for a period of time before scraping the alley.
Automatic alley scrapers are used to collect manure from the alley floor and remove it to a transfer system either at the end of the barn or in the middle, depending on the barn length. They usually have one blade per alley and travel back and forth at timed intervals. The scrapers work in pairs, so while a scraper is cleaning one alley, the other is on the return part of its cycle. In a simple system, both alleys must be the same length. Blades fold back or raise on the return stroke, so manure is only moved in one direction. Scrapers can be chain drive, cable drive or rope drive with a special polyester rope.
Mechanical alley scrapers have the advantage of providing automatic mechanized rapid removal of manure. Frequent cleaning results in less manure being dragged into the stalls and, therefore, cleaner cows. During cold weather the scrapers have to run more often to prevent manure from freezing to the alley floors. Over time, alley scrapers will cause wear to the alley floors, making them slippery. Though these systems can be used with sand, the sand will increase the wear on the equipment and on the floor.
The tube scraper system (Figure 4) was pioneered by Mason-Dixon Farms in Gettysburg, PA. It was developed to minimize the "wave" of manure that travels in front of an alley scraper, especially in long barns, to keep cows' feet cleaner and drier.
This system consists of a round or rectangular tube approximately 45.7 cm in diameter or 45.7 × 45.7 cm (18 in. diameter or 18 × 18 in.) installed beneath the alley floor (Figure 5). There is a 5-cm (2-in.) slot connecting the tube to the scrape alley. A V-shaped alley scraper blade pulls the manure to the centre of the alley, where it drops through the slot. There is a "paddle" in the tube attached to the scraper blade that moves the manure through the tube towards the transfer trench.
Another type of alley scraper is driven by a hydraulic motor. A shuttle arm moves the scraper forward in a series of steps. An advantage of this system is that it can operate single scrapers, with different lengths of alleys, with a single drive unit. Cows are able to step over the slow-moving scraper blade. A disadvantage is that the scraper blade is an obstacle on the alley floor. In new installations, the shuttle arm can be recessed into the floor. Other disadvantages are manure freezing in the winter or drying in the summer on the shuttle arm, causing the scraper to skip.
A flush manure system (Figure 6) uses a large volume of water to clean the alleys. Flush systems can be used to clean holding areas and cow traffic alleys.
Flush systems require a large volume of water to clean properly. Most systems use some form of solid-liquid separation, then recycle the separated liquids for the flush water. The cleaner the flush water is, the better the job it will do in cleaning the floors. If there is too much manure left in the flush water, a scum will build up on the floors over time, making them quite slippery.
Flush manure systems must have alley slopes of between 1.5%-4% to flush properly. The alleys should be flat or slightly crowned in the centre to force the water to the curbs where most of the manure is, or they can be grooved in a "tractor tire" pattern to force the water to the curbs. Typically, 454 L/day (120 gal/day) per 455 kg (1,000 lb) of cow is needed for adequate flushing. Flush with at least 1,340 L/m (90 gal/ft) of alley width. All flush water should be released in 10-20 seconds. Determine the actual flush-water volumes and the frequency of flushing best suited to individual barns by trial and error.
Flushing has an advantage if sand is used for bedding. The sand-laden manure can be flushed into a settling lane, and the sand can be removed. The purity of the sand will vary depending on the parameters of the settling lane.
Feed stalls (Figure 7) are not common but serve a number of purposes. The stall dividers prevent cows from disturbing each other during eating. The raised platform keeps cows from being disturbed by alley scrapers and protects them from the "wave" of manure resulting from scrapers or flush manure systems. The platform is not cleaned directly but remains reasonably clean as it is short enough that any manure lands off the platform.
The design of the robotic milking barn and the material used for bedding will determine the best option for removing manure. A slatted floor system works well for layouts with large holding areas and wide cross-overs. Alley scrapers and flush systems can be used when sand or organic material are used for bedding. A tube scraper system is a modified alley scraper, resulting in cleaner floors and cleaner feet.
House, H.K. . The Use of Robotic Slat Cleaners to Clean Slatted-Floor Dairy Barns. Joint Meeting. NABEC-CSBE 12-018. Orillia, ON.
House, H.K. . Sand-Laden Manure Handling and Storage. Factsheet. Ontario Ministry of Agriculture, Food and Rural Affairs. Guelph, ON.
Lang, B., H.K. House, N.G. Anderson and J. Rodenburg. . Free-Stall Housing Manual. Ontario Ministry of Agriculture, Food and Rural Affairs. Guelph, ON.
For more Scraper Feederinformation, please contact us. We will provide professional answers.