news - Yantai Sino Touch Mining & Construction Equipment Co.,Ltd

2022-06-10

How to improve the grinding efficiency of ball mill

After running for a long time, the ball mill will more or less encounter the problem of grinding efficiency decline, which not only affects the normal operation of the whole concentrator, but also damages the economic benefit of the mine owner. So, in production practice, how should we effectively improve the grinding efficiency of ball mill? Here are seven ways to start. 1, enhance the grinding degree of raw ore In general, the hardness of raw ore, degree of dissociation, size and structure determine the grinding degree of raw ore. The grinding degree is small, indicating that the raw ore is easy to grind, and the wear of the ball mill lining plate and grinding medium is relatively small, and the energy consumption is low; The grinding degree is large, indicating that raw ore is difficult to grind, and the wear of ball mill lining plate and grinding medium is also large, and the energy consumption is high. It shows that the grindability of raw ore directly affects the grinding efficiency of ball mill. Therefore, in the production, when the raw ore is difficult to grind and the particle size requirements are fine, we can in the case of economic and site permit, take certain measures to enhance the grinding degree of raw ore, such as adding chemical agents in the grinding process to increase the grinding efficiency; Or from the raw ore grinding degree of efforts: heating the minerals in the raw ore, reduce hardness. 2, more grinding and less grinding, reduce the ball mill into the grinding size The larger the grinding size, the greater the work of the ball mi

2022-05-17

Eight abnormal phenomena and solutions of flotation machine

As a common modern beneficiation process, flotation is widely used in concentrator. Due to the strict control of flotation on grinding fineness, pulp concentration, reagent and other aspects, operators are required to check the flotation condition frequently in the process of flotation machine operation. Below we will summarize some common flotation anomalies and see what can be done to solve these phenomena. 1. Poor flotation effect and high tailing loss This situation may be caused by the fact that the grinding fineness of the material in the flotation machine is not up to the standard or the dosage problem of flotation reagent. If the fineness of grinding can not reach the target, the fineness of grinding should be appropriately improved, and the number of grinding sections can be increased, or the way of stage grinding can be treated. If the flotation reagent dosage problem occurs, the flotation reagent should be tested to determine the dosage and index of flotation reagent. For example, for a copper-cobalt oxide ore in Congo, the main copper minerals are malachite and cobalt minerals are hydrocobalt. In order to improve the flotation effect, sodium hydride and ammonia sulfide are mixed at a ratio of 1 to 1 after the test to improve the flotation effect. 2. The flotation cell foam is large and the surface is reflective When large foam appears in the flotation tank and the surface reflects light, the possible reason is that too much flotation reagent is added. At this time, the operator should adjust the dosage of flotation reagent appropriately to observe whether the flotation foam condition is improved. 3. The liquid level of single flotation cell is on the high side The high liquid level of a single flotation tank may be caused by the blockage of the suction pipe. At this time, the operator needs to stop the suction pipe to clean

2022-05-23

Ball mill installation and debugging matters needing attention

Ball mill is indispensable equipment in the concentrator, but also the whole concentrator construction is very key equipment, so it is very important to ensure the stable operation of the ball mill. But before the formal operation, ball mill debugging is a very important step, can not appear any point of deviation, otherwise it will lead to ball mill product granularity can not meet the requirements, even reduce the metal recovery rate. So how to carry out the ball mill debugging work? Ball mill debugging should confirm whether to meet the debugging conditions, empty running and load running, check the status of various aspects of the equipment and so on. 1, check whether the ball mill meets the following debugging conditions Is the ball mill equipment installed according to the drawings, to ensure that all parts of the equipment in the correct position. It is required to have a complete installation process record and acceptance; The strength of the equipment foundation concrete and the strength of the secondary grouting concrete should reach the strength grade of the design requirements; PLC control system, temperature meter and pressure gauge of ball mill can be put in reliably. Ball mill equipment installation completed, grinding workshop system is complete; There is no garbage and debris in the surrounding environment of the equipment, and the scaffolding shall be removed; Ensure complete water power, electricity and communication facilities; Ensure smooth channel, convenient for operators to pass smoothly; Ensure that the surrounding environment is free from inflammable and explosive objects that are easy to cause safety accidents, and equipped with corresponding fire protection facilities to guard against accidents; Ensure that the lubrication dose used in the operation of the ball mill i

2022-06-04

What are the operation skills and maintenance points of the shaker

Shaking table is one of the widely used gravity separation equipment. Shaker separation is high, the concentration ratio of the concentrate is very high. During the operation of the shaker, mineral separation is achieved by the combination of bed surface and transverse flow. In order to reduce failures and improve sorting efficiency, operators need to seriously understand the operation skills of the shaker, and maintenance. First, shaking table operation skills In the operation of the shaker, it is necessary to carefully observe the partition of the shaker surface and control the appropriate vertical and transverse slope of the bed surface. In addition, it is also necessary to consider the feeding size, feeding amount, feeding concentration, washing water, stroke and other factors in the separation process. Below we aim at the above several main factors, to carry on the simple explanation to the operation skill of the shaker. 1, shaker bed surface partition The bed surface is divided into fine area, middle area, tailing area and slime area. Under normal conditions, the width of the slime area is 0.9 ~ 1.4m. The ore flow in the tailing area should be stable without rapids or furrows, and the thickness of the ore layer should be suitable and covered by water. Tail mine can be controlled by adjusting feed concentration and feed trough sand hole. Middling area is the interval of middling area, which is controlled mainly by adjusting flushing water and transverse slope. The concentration area requires obvious zoning of various specific gravity minerals, and a stable and obvious boundary between the concentration area and the primary selection area should be formed. This area is controlled by adjusting the flushing water and the transverse slope. 2. Horizontal and longitudinal slope of the bed surface of the shaker In the installatio

2022-05-08

Loading Gold Mining Equipment and Gold Mining Spare Parts to Sudan.

Doing Gold Mining Equipment and Mining Spare Parts,we are professional. During last week,we have prepared a lot of gold mining spare parts to Port Sudan,the major spare parts includes: ball mill liners, motor,reducer,gearbox,steel roller,rubber roller,bearing,slurry pump,centrifugal water pump,shield pump,and magnetic pump etc. According to our experience,the spare parts cannot be used immdeiately,so we have put all of the spare parts in the plywood carton to protect them.AS MSK website shows,these containers will be reached PORT SUDAN after 50 days,wishing our customer can use them ASAP. Attached some loading photos in Qingdao Port,China. Pls donot hesitate to let us know if you need any gold CIL equipment or spare parts, WhatsApp: 008615106533168 or email:sinotouch@miningepcm.com

2022-01-03

Jaw crusher in the gold mining (Lab usage)

As we all known, jaw crusher in the lab is very important,we can provide all kinds of mining lab equipment and instruments.Jaw crusher is only for the primary crushing,and then we can use double roller crusher or PEX types crusher for more finess particle.Besides jaw crusher,the major lab equipment for gold mine includes Drying Oven,Filter,Flotation cell,Small leaching tanks,shaking tables etc. Attached is our package for the lab equipment,please contact us if you need any lab equipment and instruments. Company WhatsApp: 008615106533168 (24hours online), or email sinotouch@miningepcm.com

2021-12-30

Belt converyor spare parts packaged to Africa customer.

Orange-red color is SINO TOUCH major color,and we treat all the mining equipment and mining spare parts as our baby,and will paint this "fortunate" color to all of our customer. For the belt converyor in the gold mining,the iron roller size normally is 190mm,240mm,600mm,750mm etc.also for the carrying rubber roller,the size also have 190mm,240mm,600mm,750mm etc. As professional mining equipment supplier in China,we have manufactured all kinds of belt converyor to different mines all over the world. The width of belt started from B500 to B1200. Attached is our new package today to Africa customer,if you order our mining spare parts,same package as below: Please contact us for any inquiry about gold mining equipment,as we have rich gold mining epcm all over the world. "DO ONE THING AT A T

2021-12-27

Ball mill for the Gold Mining EPCM,loaded to Africa countries.

Grinding ball mill is used for all kinds of mining,especially in the gold mining. Our ball mill have below advantages: 1. Energy saving up to 20%-30% 2. Using groove-type circular lining plate,increasing contact area of steel ball and ores 3. Adopting oil-mist lubrication device which can guarantees smooth operation of gears. Below ball mill is used in 500t/d gold CIL plant in Africa countries. Ball mill likes the heart of the gold plant, chooing one good quality and service is very important. We can provide the best quality and price ball mill to you. welcome to WhatsApp me 008615106533168 (24 hours online)

2021-12-25

When I was young in SAHARA GOLD MINING,SUDAN,2013

Time flies,when I first time to Africa ,time is in Feb.2013, the final destinatioin is Khartoum,Sudan. Before I visited there,I have no idea about local temperature and environment.When the flight arrived Khartoum airport,I stepped out of the cabin,there was a sudden surge of heat to my face.Wow,this is the feeling of Khartoum,Sudan----too hot. Fortunately, I can still find some photos in KHARTOUM, just forget about GOLD Mining EPCM,and let us enjoy the beautiful time. Up to now,around 9 years passed,and I have more than thousands of Sudan friends,whom doing gold mining in different methods, likes CIL,CIP,heap leaching etc. I alwayed treated Sudan as my second hometown, greetings with them Sallam and replying in Allhamdullah.We all known 2021 is special year for Sudan,just hoping safety and peaceful will surround them forever.

2021-12-24

Trademark for Sino Touch Mining EPCM has been registered successfully.

Trademark for Sino Touch Mining EPCM has been registered successfully. In order to promote our products in the market well, we have successfully registered two trademarks for Sino Touch. Trademark means reputation in the world, we will work hard to make sure the good quality for all the mining equipment and spare parts.Up to now,the major mining equipment we manufacture is JAW CRUSHER, CONE CRUSHER, BALL MILL, HYDROCYCLONE, THICKENER, FLOTATION CELL, SMELTING EQUIPMENT and so on. For the mining spare parts, we have STEEL BALL, BALL MILL LINERS, SLURRY PUMP, BELT, VALVES, ELECTRIC PARTS ETC. welcome to contact us by WhatsApp (24 hours online): 008615106533168 (Mr.Matthew) or Email us by sinotouch@miningepcm.com

2022-05-12

Circular shaker common 5 problems and solutions

Vibrating screen is very important auxiliary equipment in mine production, once the failure will directly affect the normal operation of the production line. As a common type of shaker, circular shaker (also known as: circular shaker) in the daily operation of the common problems are what? When we encounter these problems, how do we solve them? This paper analyzes the causes of five common problems of circular shaker and puts forward countermeasures. A, circular vibrating screen shaft fracture In general, the circular vibrating screen is mainly driven by the motor with eccentric quality of the vibrator to produce vibration. In the vibration process, the shaft is the key component that drives the vibration of the circular vibrating screen, and receives a large force. Therefore, in practice, shaft fracture is a common fault. Once the shaft fracture problem occurs, the circular vibrating screen will immediately stop working, its maintenance is more complex, must be given high attention. Reasons and countermeasures: 1. Long time metal fatigue or poor shaft material The shaft of the circular vibrating screen is a kind of metal material, which is subjected to the synthetic torque of torque and repeated impact force for a long time in the process of use. Under the action of long-term impact moment, the material inside the shaft will gradually fatigue, and fracture phenomenon will occur when the fatigue limit is reached. In addition, there are great differences in the torsional strength of different materials, if the materia

2022-05-08

Slurry pump seal failure or cavitation how to do

Slurry pump is mainly used to transport abrasive particles and viscous high concentration slurry in concentrator. After a long time of operation, most of the concentrator will more or less encounter a variety of slurry pump problems, not only affect the normal operation of the whole concentrator, but also damage the economic benefits of the concentrator. In daily operations, slurry pump prone to problems are seal failure and cavitation, if not timely found and timely control, will affect the normal operation of the pump. One, slurry pump seal failure At present, slurry pump commonly used shaft seal for packing seal and mechanical seal.

2022-04-30

Causes and solutions of belt conveyor belt running deviation

Belt conveyor is a kind of material transport equipment commonly used in concentrator at present, in which belt as a load bearing and transport device plays an important role. In the process of mineral processing, belt deviation is a common problem of belt conveyor, that is, in operation, the belt center line deviates from the center line of the conveyor and tends to one side. Belt deviation problem said big can be big, said small can be small, light belt "point injury", affecting the normal production line of the selection factory, heavy belt and rack violent friction so that the belt softening or even burning fire, the consequences can not imagine! Below, take you to understand the main cause of belt conveyor belt deviation, and give the corresponding solution.

2022-04-11

high strength mining geogrid

high strength fire resistant mine support plastic grid,Minegrid for longwall,highwall,roof and rib support Mining geogrids introduction: Geogrid is knitted by polymer yarns with high strength, high modulus and low creep and coated with advanced technology. It is specially used as the substitute of metallic mesh for longwall face recovery and you do not need to weave the mesh frequently on site before the longwall stops. Polyester mesh is going to be lift at the position 15-25 meters away from the stopping line with winches and fixed pulley at one time. Mesh laying, lifting and advance is circulated with the share pass. Mesh application affords the technical innovation meaning to improve the longwall face recovery efficiency and security. polyester mesh is 3-6 m wide and 50-200 m long with tensile strength ranging from 100kn/m-800kn/m. Mesh with strength 800-1000kn/m for special projects can also be supplied. We will manufacture mesh based on the parameters of longwall faces. Mining geogrid application scopes: Longwall face recovery for roof support On both ends of longwall face for roof support Ultra-high drainage tunnel and old tunn

2022-04-11

Five common problems and solutions of hydrocyclones

Hydrocyclone is a more effective fine particle classification equipment in current mineral processing equipment. In daily production, there are more or less some equipment failures of hydrocyclones. If they cannot be found and solved in time, it is likely to lead to the shutdown of hydrocyclones. So, what are the common failures of hydrocyclones in daily operation? How do we solve these problems when we encounter them? This paper analyzes the causes and countermeasures from five common faults. 1. The ore pressure fluctuates greatly In the process of production, ore feeding pressure will affect the hydrocyclone capacity and grading granularity. Generally, the ore feeding pressure of the hydrocyclone should be kept stable according to the required pressure, and large fluctuation should not occur, otherwise it will damage the performance of the equipment and affect its classification effect. The large fluctuation of the pressure to the ore is usually caused by the drop of the pump tank level or air drag caused by the pump to the ore shortage, or the blockage of impurities into the pump. If the hydraulic cyclone after a long time of operation occurs to the mine pressure drop is mainly caused by pump wear. Solutions: 1. If the mine pressure fluctuation is caused by the drop of the pump tank level, it can be adjusted by increasing the level, or closing one or two hydrocyclones, or reducing the pump speed; 2. If the pressure fluctuation caused by pump blockage or wear, the pump needs to be repaired. 2. The hydrocyclone is blocked The blockage of hydrocyclone can be judged mainly by observing whether the overflow and bottom flow discharge of hydrocyclone are smooth. When there are more coarse particles in the overflow, the flow of the overflow and bottom flow decreases or the bottom flow stops, and the sand is discharged in columnar form, it indicates that the hydrocyclone has been bloc

2022-01-13

Gearbox for the leaching tanks,used in Gold CIL plant.

We have manufactured one of the biggest reducer for the leaching tanks.the dimension is 1250*1350*900cm,used in 9M*9.5M leaching tanks,which is Gold CIL process. The worm gear and the main shaft is the major part of the reducer,which we used copper as the main material. Attached some photos for the reducer and worm gear,please let us know if you need reducers for any specification.

2021-12-23

Company new website : www.miningepcm.com will be online.

Doing mining field,we all known that EPCM is one of the most important service. E stands for Engineering, P stands for Procurement, C stands for Construction, M stands for Management. Yantai Sino Touch Mining & Construction Equipment Co.,Ltd is one of MINING EPCM supplier in China, and have done a lot of GOLD MINING EPCM all over the world,Such as Sudan,Ghana,Zimbabwe,Indonesia,Myanmar etc. With the coming of new year (2022),we have registered new website : www.miningepcm.com, with new email address : sinotouch@miningepcm.com. Also our another web still uses well: www.stmcgroup.com So we will use two website in the new year,www.miningepcm.com and www.stmcgroup.com, both of us can find us easily. Any inquiry about mining,especially gold mining,welcome to email us by sinotouch@miningepcm.com or WhatsApp: 008615106533168.