On the working face of fully mechanized coal mining, the trough crusher is used with the transfer machine, and the high speed rotating hammer head is used to impact and crush the large raw coal, so as to crush it into the required grain size. Hammer shaft component hammer head is the key part of the crusher, which needs to have high hardness and stiffness. The impact on the hammer head of the hammer shaft assembly is relatively large, so the head of the hammer head should have good wear resistance and the handle should have sufficient toughness. The hammer head of the hammer shaft assembly is usually forged or cast by alloy steel, high manganese steel, cast steel and high chromium cast iron bimetallic composite. The surface of hammer head is quenched by medium frequency quenching induction equipment. To a large extent, the damage of the crusher is due to the failure of the hammer head of the hammer shaft assembly, the poor wear resistance of the hammer head and the loosening of the hammer head will bring losses to the coal mine production. Therefore, when using the hammer head of the hammer shaft assembly, some anti-loose measures should be taken. Coal mining enterprises should also choose hammer head with good quality. Henan Shuangzhi produces various types of hammer head and hammer shaft components, complete product technology, strict quality inspection, durable and easy to use products, if you have the mining crusher accessories procurement needs, you are welcome to consult.
River pebbles look really appealing when used for landscaping / paving. They are available in many sizes and colors.
River pebbles look really appealing when used for landscaping / paving. They are available in many sizes and colors.
Crusher Backing Compound is an Essential requirement with Any Crushing, Mining, Deep Foundation excavation sectors. We are world's largest OEM Manufacturer of CBC and Our Product is well accredited worldwide by many Turnkey contractors.
This moon stone is 240 carats and it is the second largest in the World. its white and reflects Blue. Must see the pictures and video.
The cutter head, also known as hammer head, is the main vulnerable part of the crushing shaft, and it is also the part that bears great impact force when crushing coal. There are castings and forgings on the market, but the castings bearing strength is small and the service life is short. Blade was covered a layer of wear-resisting layer forging and become, blade and blade both use a special fastening bolt and nut set, blade bolts and nuts with locking washers, when wear to a certain situation or cracks have appeared, should change in time, otherwise will make the blade are installed on the part of the blade is damaged, and can no longer be tighten blade on the blade holder. The broken shaft without cutting teeth will lose its balance, and the strong vibration will shorten the service life of the broken shaft sharply. Shuangzhi coal machine for many years focused on the scraper conveyor, transfer machine accessories, crusher accessories system repair, products sold to the major mining areas, more information please click on the official website of Shuangzhi coal machine or call to inquire the factory investigation
The crushing machine series of mine scraper conveyer is mainly used in combination with the transferring machine and complete the conveying task of underground comprehensive mechanized coal mining with belt conveyer, scraper conveyer, shearer and hydraulic support. The models of mine crusher are PCM, PEM, PLM, etc. They are respectively represented as hammer crusher, jaw crusher, wheel crusher, etc. According to different working face and production capacity of mine, different crushing capacity of crusher is required. For example, PLM3000 wheel crusher has crushing capacity of 3000T /h. PLM4000 wheel crusher with crushing capacity up to 4000T /h. The crushing shaft group is the main component of the crushing coal and gangue. Using the broken shaft set higher rotational inertia stored at rated speed kinetic energy by installing group on the shaft of the broken blade and the broken material short contact time and impact break coal formation, again by cutter tooth and scraper chain, crusher, the speed difference between further to crush was broken coal, so as to achieve the goal of broken coal. Shuangzhi Coal machine focuses on the production and manufacturing of spare parts of scraper machine, transferring machine spare parts and crusher spare parts for mine. It is located in Zhengzhou with developed logistics. At present, it cooperates with major mining areas all over the country.
S33 series sand crusher is the fourth generation crusher developed by our company. The device sets crushing, Screening, primary regeneration as a whole. Compared with the built-in crusher, this machine has the advantages of reliable use, simple structure and convenient maintenance.
Natural Limestone The limestone is a sedimentary rock composed of the mineral calcite, a form of calcium carbonate. For the first time the limestone is classified by Robert L. Folk and Robert J.Duham. Generally limestone is classified in three types: Regular limestone - used as a construction material or yielding lime and cement Shell stone - one can distinguish inside it shell residues of various species. Because of its beautiful aesthetics it is used mainly for panelling walls, facades, fountains etc. Chalk this type of limestone is very soft and it is mainly used for the chalk production. The limestone is widely used in architecture. Many landmarks across the world, including the Great Pyramid and its associated complex in Giza, Egypt, are made of limestone. So many buildings in Kingston, Ontario, Canada were constructed from it that it is nicknamed the 'Limestone City'. In the late 19th and early 20th centuries train stations, banks, big stores and other structures from that era are normally made of limestone. Vratza Limestone - High Quality Limestone from Bulgaria Starting back in the 19th century, Vratza limestone is mined in the Northern Bed of Mezdra syncline. It is a calcite lime with comparatively high substance of quartz. Vratza limestone is a type of natural Bulgarian limestone, that has unique features it is extremely weather-resistant, easy to process and possesses rare aesthetic qualities. These features makes it a perfect material for outdoor application outdoor, paving, cladding and decorations, as well as for interior use like limestone fireplaces, interiour decorations, limestone staircases and furniture. If we take a closer look at the facades of the old classical buildings, we would find out the features of a compact, homogenous stone that is impressive with its warm creamy colour rain- and cold-resistant throughout time. Vratza limestone is an excellent building stone for humid regions. This type of limestone is hard enough to resist weathering but usually soft enough to be processed (cut and carved) by stonemasons. Tests show that in terms of strength and frost resistance Vratza limestone exceeds the other limestone types. Everything made from Vratza limestone Beautiful, durable throughout time and equally suitable for open air, as well as for closed spaces, Vratza limestone is the excellent choice for everyone that keeps quality and luxurious appearance at high esteem. In its capacity of leader in delivering and processing this unique natural stone, we offer extensive range of items made from Vratza stone, including tailor-made solutions in full conformity with the wishes and needs of our clients.
Natural Limestone The limestone is a sedimentary rock composed of the mineral calcite, a form of calcium carbonate. For the first time the limestone is classified by Robert L. Folk and Robert J.Duham. Generally limestone is classified in three types: Regular limestone - used as a construction material or yielding lime and cement Shell stone - one can distinguish inside it shell residues of various species. Because of its beautiful aesthetics it is used mainly for panelling walls, facades, fountains etc. Chalk this type of limestone is very soft and it is mainly used for the chalk production. The limestone is widely used in architecture. Many landmarks across the world, including the Great Pyramid and its associated complex in Giza, Egypt, are made of limestone. So many buildings in Kingston, Ontario, Canada were constructed from it that it is nicknamed the 'Limestone City'. In the late 19th and early 20th centuries train stations, banks, big stores and other structures from that era are normally made of limestone. Vratza Limestone - High Quality Limestone from Bulgaria Starting back in the 19th century, Vratza limestone is mined in the Northern Bed of Mezdra syncline. It is a calcite lime with comparatively high substance of quartz. Vratza limestone is a type of natural Bulgarian limestone, that has unique features it is extremely weather-resistant, easy to process and possesses rare aesthetic qualities. These features makes it a perfect material for outdoor application outdoor, paving, cladding and decorations, as well as for interior use like limestone fireplaces, interiour decorations, limestone staircases and furniture. If we take a closer look at the facades of the old classical buildings, we would find out the features of a compact, homogenous stone that is impressive with its warm creamy colour rain- and cold-resistant throughout time. Vratza limestone is an excellent building stone for humid regions. This type of limestone is hard enough to resist weathering but usually soft enough to be processed (cut and carved) by stonemasons. Tests show that in terms of strength and frost resistance Vratza limestone exceeds the other limestone types. Everything made from Vratza limestone Beautiful, durable throughout time and equally suitable for open air, as well as for closed spaces, Vratza limestone is the excellent choice for everyone that keeps quality and luxurious appearance at high esteem. In its capacity of leader in delivering and processing this unique natural stone, we offer extensive range of items made from Vratza stone, including tailor-made solutions in full conformity with the wishes and needs of our clients.
Common hammer head hammer head materials are: high manganese steel, low carbon alloy steel, high chromium cast iron. High manganese steel has better toughness, better technology and lower cost. But the processing hardening of high manganese steel requires higher processing technology. If the impact force is not enough and the contact stress is too small, the surface cannot be hardened. Low carbon alloy steel has high hardness and toughness. At the same working strength, the service time is twice that of high manganese steel. High chromium cast iron has poor toughness and is prone to fracture. High chromium cast iron is usually used as hammer handle on the head of high manganese steel and low carbon alloy steel to make it have hardness and toughness. The quality of manufacturing process is to determine the service life of the hammer head. If there are shrinkage holes or cracks on the surface or inside of the hammer head, it will reduce the performance of the hammer head and even cause fracture in the operation process, affecting the working efficiency. In the manufacturing process of hammer head, forging and heat treatment process should be strictly controlled, and strict quality inspection process should be established. Hammer heads of different structure and geometry have different performance after heat treatment and forging. Generally speaking, the thicker the hammer head, the larger the size, the less easy to penetrate. However, it is limited to change this situation through reasonable heat treatment and forging, so it is still necessary to optimize the structure and shape of the hammer without affecting the use effect. In general, the rotor speed of the broken shaft group is high, the greater the impact force on the hammer head, it can be better impact hardening. But also can cause the hammer head service life to reduce, the crusher power consumption is too big. Therefore, a reasonable speed should be set. If the clearance between crushing shaft rotor, grate, crushing plate and feeding roller is too small, it will lead to the blockage of coal. If the clearance is too small, the crushing effect and efficiency are too low. Hammer head crusher in the use of time, often adjust the clearance between the parts, so that it in the appropriate range. The shape and quality of hammer head directly affect the yield and service life of the crusher. When buying a crusher hammer head, pay more attention to the above mentioned factors, choose suitable for toughness hammer head. Henan Shuangzhi Machinery Equipment Co., LTD. Produces hammer head of crusher, crushing shaft group, scraper conveyor accessories. Welcome customers to purchase.
The crushing shaft is composed of crushing shaft, cutter tooth base, cutter tooth, flat key, bearing, seal and fastening bolt. The strong rival of coal "big block" is broken shaft group, today we are going to introduce this "strong rival"! Trough crusher is used with the transfer machine, using the high speed rotating hammer head to impact and squeeze large raw coal, so as to achieve the required particle size. The crushing shaft assembly is the key component of the crusher, which requires high precision and high stiffness. The middle part of the spindle is equipped with hammer head, which is directly involved in impact crushing. Its performance is the key. Due to the large impact load of the hammer head, high rotation speed, the use of mining is extremely bad, so the performance of the hammer head largely determines the reliability of the crusher. Main parts function, structure characteristic and installation and maintenance of broken shaft 1. The rotating part of the crushing shaft assembly shall not contact with any other parts in the box body. 2. The distance between any particular point of the rotation part of the crushing shaft set and the side wall of the crushing box is equal on the circumference of the crushing box. 3. The fastening bolts between the cutter body and the cutter tooth base shall not be loosened, and the cutter body shall not be cracked. 4. Manual rotation of the crushing shaft should be smooth and sound. 5. There is no bump mark in the belt groove on the pulley. 6. Prepare for complete machine test in coordination with other parts.
Bao Thach Minerals prvoide many kind of cubic stone with many sizes and colors
1. Product: Decoration Pebble Stone 2. Materials: Limestone 3. Color: Snow white, Milky white, Black, Grey, Pink & Yellow 4. Size: 2-3mm, 3-5mm, 5-7mm, 10-15mm, 15-20mm, 20-30mm, 30-40mm, 40-50mm, 50-80mm. 80-120mm 5. Capacity: 5000 tons/ month 6. Packing: PP/PE bag of 20kgs, 25kgs, 30kgs, 50kgs, 1000kgs 7. Loading capacity: 20-28 tons/ container 20 feet with or without pallet/wrapping and belt clip 8. Loading port: Haiphong Vietnam
1. Product: Decoration Pebble Stone 2. Materials: Limestone 3. Color: Grey 4. Size: 2-3mm, 3-5mm, 5-7mm, 10-15mm, 15-20mm, 20-30mm, 30-40mm, 40-50mm, 50-80mm or customized 5. Capacity: 5000 tons/ month 6. Packing: PP/PE bag of 20kgs, 25kgs, 30kgs, 50kgs, 1000kgs 7. Loading capacity: 20-28 tons/ container 20 feet with or without pallet/wrapping and belt clip 8. Loading port: Haiphong Vietnam.
1. Product: Decoration Pebble Stone 2. Materials: Limestone 3. Color: Black 4. Size: 2-3mm, 3-5mm, 5-7mm, 10-15mm, 15-20mm, 20-30mm, 30-40mm, 40-50mm, 50-80mm. 80-120mm 5. Capacity: 5000 tons/ month 6. Packing: PP/PE bag of 20kgs, 25kgs, 30kgs, 50kgs, 1000kgs 7. Loading capacity: 20-28 tons/ container 20 feet with or without pallet/wrapping and belt clip 8. Loading port: Haiphong Vietnam
1. Product: Decoration Pebble Stone 2. Materials: Limestone 3. Color: Snow white 4. Size: 2-3mm, 3-5mm, 5-7mm, 10-15mm, 15-20mm, 20-30mm, 30-40mm, 40-50mm, 50-80mm. 80-120mm 5. Capacity: 5000 tons/ month 6. Packing: PP/PE bag of 20kgs, 25kgs, 30kgs, 50kgs, 1000kgs 7. Loading capacity: 20-28 tons/ container 20 feet with or without pallet/wrapping and belt clip 8. Loading port: Haiphong Vietnam
Glow in the dark stones (glow stone, glow in the dark rocks/pebbles) are resin or glass stones that create a unique luminous visual effect in the dark environment and require no electrical powder. Glow Technologys glow stones have various day and glow color choices and last a lifetime indoors and out.
Up to 100kg (per month) of premium Zircon Stones. Product is packaged and sent direct from mine site. Quality Zircon ready to be crafted into something beautiful. Minimum purchase 5kg. Price is per KG. Low cost international shipping available and quoted on purchase or inquiry. Quality guaranteed. Looking for long term, reliable buyers to build commercial relationship with.
Rusty, Tumbled, Round, Natural
