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overland and underground rubber er magnetic separator

tbs fine coal,tbs,coal washing-beijing hot mining tech co ltd

tbs fine coal,tbs,coal washing-beijing hot mining tech co ltd

The traditional separation technique of coking coal is, 50.0-0.5mm heavy dense medium cyclone processing, 0.5-0mm fine particle flotation, the mature separation technology based on coarse coal heavy dense medium process and slurry flotation has been formed.

As the developing capacity of coal washing plant, the requirement for capacity of heavy dense medium cyclone is higher and higher, the development trend of heavy dense medium cyclone is large-scale. Due to the increase of effective separation lower limit of grand diameter cyclone and decrease of feeding particle size of microbubble flotation column, the coarse coal slime(1.0-0.3mm) has become the dead zone of coal washing technology. To adapt the change of coal property, coal washing technology has improved and developed in recent years. As the popularization and application of TBS coarse coal slime separator, the technology has been formed as the following picture:

The flotation technology of coarse coal slime heavy dense medium is mature, while coarse slime separation technology is relatively weak. So, coarse slime separation work is the crucial point of increasing fine coal productivity and improving coal company economic benefit.

TBS coarse slime sorting machine is the most common machine in Chinese coal preparation industry including Zhuang shuanglou coal preparation plant,Ji Er coal preparation plant, Pan Nan corporation and Liang Bai coal preparation plant, and sorting result is satisfactory.

Taking example by the experience of above-mentioned company, Centre coal preparation plant used two 3000mm TBS coarse slime sorting machines in first-stage project. But they didnt get a desired result, concentrate ash content is higher. Because TBS sorting machine is based on interfering terminal velocity for delamination. Within a certain particle size, it is easy to sort low density of fine particle and high density coarse particle. And it is hard to sort high density of fine particle and low density of coarse particle.

By above knowable, TBS Concentrate ash degree is 10.02%. +0.075mm material accumulated ash degree is just 6.28%,but -0.075mm material accumulated ash degree is 47.77%. This part of the fine particle materials account for 9% of the concentrate. Most direct and effective way to improve the concentrate grade is to reduce the concentration of -0.075 mm high content of gray matter.

In order to meet the required conditions of coarse slime separation, make the materials to maintain the necessary continuous turbulence state in the tank, reducing pipe diameter of recoil water to improve pressure of recoil water. The water supply pressure is maintained at 70kPa and keep it stable. At this pressure it can provide some ascending fluid velocity, it will make high density material settled in the ascending fluid while low density material floated to realize the separation by density and particle size. It will lower the frequency of Ad11% of special coal sample by adjustment.

Adjust 500mm Grading cyclone bottom drain port from 100mm to 90mm in diameter. After adjustment, TBS coarse coal slime separator into the material grade 0.125 mm granular material mass fraction was reduced by 3% - 4%, Then reduced the TBS concentrate high ash content of fine clay materials, reduced the ash content of TBS concentrate.

As a result of the centrifuge (mesh 0.4 mm) centrifugal fluid contains a large number of fine grain material, ash content is higher, at 22%. There is a big gap with concentrate 8% ash content requirements. It has a serious pollution of production quality. Transfer the original barrel to concentrate centrifugal liquid discharged to the TBS tailings slime centrifuge. Blend it into the coal products after dehydration treatment. Fundamentally solved the centrifugal liquid high ash of fine clay material in concentrate system build-up of pollution problems, improved the TBS concentrate grade.

The content of high ash of fine slime in slurry is high when the the content of coal gangue is up to 40%. Because the -0.045mm fine particles can not be separated by classifying hydrocyclone, and TBS is also not good for fine particle coal slurry separation, so the high ash of fine slime will float to clean coal with TBS over flow. This will make the ash content of product different. Coal washing plant will solve this problem by the following desliming measures: In general the slurry centrifuge basket pore is 0.4mm, when processing the 1/3 coking coal which with high gangue content, the bask pore should be 0.6mm. In this way, it can increase the rate of fine slime through screen. Finally this part of fine slime will be separated by centrifuge force and the ash content in product is reduced.

Through the comparison of the data found that the replacement of 0.6mm sieve, concentrate the yield of -0.075mm decreased from 8.60% to 4.51%, reduced by 47.56%, ash from 14.28% to 10.51%, reduced by 26.40%.

Afterthroughreform of the abovethe process of coarse coal slime separation systemand equipmentfound concentrateproductaverageash decreased from 10.02% to7.91%,TBSconcentratefromthepartof themix,implementsallblendedtoclean coal,The clean coal yield increased from 47.62% to 49.53%, clean coal yield increased by 4.01%, Every dayproducingmoreclean coal286.5t,according tocurrentgas-fatcoalcoalmarketvalue,every daycanincreasetheincomeof180,500,annuallyfortheenterprisetoincreaseeconomic benefit64.98millionYuan.

Currently, large diameter cyclone with independent intellectual property rights (maximum diameter: 1.5M) and flotation column with a higher selectivity both are applied in coal preparation industry of China.With the gradual upgrading of coal preparation equipment,the technology of large particle materials gravity separation,fine coal slime flotation and coarse coal slime separation have been scaled greatly.So do a good job in the coarse coal slime separation are effective ways to improve economic benefit of coal preparation enterprises.The aboves are a exploration and transformation for coarse slime system and a good effect of ash reduction for TBS concentrate product.Although the TBS separator is applied in coarse slime separation,but the sorting accuracy is low,probably will lead to a large deviation.So studying on a new type of Coarse Slime Separator is the bounden duty of coal preparation workers.

HOT Mining is a national high-tech enterprise, is committed to providing the world's leading mining and mineral processingintegration solutions.Scope of services include coal, iron ore, copper, gold, lead and zincore and other industrialminerals, from miningtocleanprocessingof"one-stop"service,including from the beginning of the assessment of resources, to the project financing, engineering design,complete sets of supply,engineering procurement constructionto productionhostingoperation servicesservices after the completion of the mine.

HOT service footprint throughout the world's major mining countries, HOT has been in Australia, India, Iran, Pakistan, Chile, Zambia, North Sultan, Guatemala and well-known local service providers to set up offices or sales and service team.

Swadhin Saurabh I think that the four (4) most important factors that can improve the TBS performance are: 1. The top to bottom size fraction of the feed solid should be around 4:1. This ratio should not be more than 8:1. To ensure that the top and the bottom sizes of particles are precisely controlled, we should focus on classification of fine coal in classifying cyclones on the basis on D90 or D95 and NOT D50. 2. The maximum and minimum size of the particles that can be effectively separated in such gravity separation equipment is defined. One should not feed these equipment with size fractions beyond the limit s defined by the manufacturers. 3. It is a continuous flow equipment. So the volumetric flow rate to the TBS should be controlled precisely to obtain the optimum result. 4. TBS also has limitations (both max and min) on the feed % solids (w/w). So, the feed % solids should also be controlled precisely. If we follow these four (4) things while running TBS or even Reflux Classifiers, we should be able to get optimum performance out of these machines.

electromagnetic overband separator

electromagnetic overband separator

IFE electromagnetic overband separators are used to separate ferrous impurities from any kind of bulk material. They are used to recover magnetic particles from slag, household or industrial waste, foundry sand etc. and are utilized to protect crushers, belt conveyors, screens or grinders from metallic tramp particles. When a large volume of tramp iron is expected, a self-cleaning type separator will be more economical than a simple suspended magnet which is sufficient for small quantities.Most beneficial are electromagnetic overband separators, when strong magnetic fields are needed or arrangement of equipment only allows for high clearence distances.

All electromagnetic overband separators are available in ATEX-design. The separator is equipped with an antistatic extraction belt with rubber cleats for this type of application. Proper operation is maintained with a speed sensor; the temperature of the magnetic is surveyed with a thermistor allowing for switch-off in case of unsafe conditions. This prevents ignition due to high surface temperatures.

Sometimes arrangement of equipment requires wider extraction distances. This can be achieved by a permanentmagnetic extension, widening the magnetic field and shifting the extraction point of the magnetic. This type of extension allows for optimal arrangement of the splitter.

The heat generated during operation of an electromagnetic overband separator is dissipated to the environment. Using an external oil cooling system improves the efficiency of the separator and allows for operation with ambient temperatures exceeding 40 C.

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complete conveyor solutions | asgco | engineered products & services | asgco

complete conveyor solutions | asgco | engineered products & services | asgco

Our Mid Atlantic division is the leading supplier of conveyors and bulk material handling products & services in the Mid-Atlantic region. From conveyor belting, idlers, pulleys, power transmission products, wear parts and screens to complete turnekey systems, ASGCO will handle any of your conveying and bulk material handling needs.

Our Complete Conveyor Solutions division is a manufacturer of conveyor products and equipment, along with conveyor engineering services, provided through our partnered network of servicing distributors and original equipment manufacturers (oems) around the globe.

ASGCO Steel Fabrication division is a full-service steel fabrication, contract manufacturing, machining, welding and finishing facility that has the ability to manufacture simple parts to complete assemblies to complex print-to-build projects for Original Equipment Manufacturers (OEMs) and industrial customers.

Features and Benefits Excellent Performance allows users to fully clean and divert materials at designated locations. Diagonal Plow discharges material from one side of the belt. It can be discharged on either side of the conveyor as specified by the customer during design. Spring-Shoc Tensioners with impact absorbing rubber cushions ensure maximum tension is applied []

industrial metal detection equipment | bunting

industrial metal detection equipment | bunting

The most common of foreign material within processing is metal. Bunting Metal Detection equipment senses and removes the presence of ferrous, non-ferrous and stainless metals in the process flow in-line, in free-fall applications, and in conjunction with conveyors. These units also find metal encapsulated in the individual particle.

Bunting Metal Detectors utilize triple coil design for the search head. This is comprised of windings around an aperture opening, whether round, or rectangular. There is a transmitter in the center, and two receivers (one at entrance of the search head, and one at the exit). Within the aperture opening, an electromagnetic field is created. When a piece of metal passes through the coil opening, a signal is generated and calculated at each and activates further operations or devices.

All search heads are filled with a catalyzed epoxy. There are no empty voids inside the housing, thereby eliminating the possibility of water intrusion to the coil, making them easy to clean. This exclusive epoxy also reduces the effect of vibration to the search head. Coils and electronics can be rated from IP54, to IP66 and IP69K.

Additionally the search head is manufactured with a special shielding against outside interferences. This allows Bunting Metal Detectors to perform better in difficult environments, and require shorter metal free zones than our competition.

Depending on the level of electronics you select, Bunting Metal Detectors have recording and reporting functions within the software. Optional features allow your organization to network detectors for remote monitoring, reporting or control.

In our pipeline series, we have two styles, the pipeLINE system is used for liquids or pastes in pressure conveying lines. The meatLINE system is also used for liquids or pastes but it uses simple integration with a vacuum filter.

In our pipeline series, we have two styles, the pipeLINE system is used for liquids or pastes in pressure conveying lines. The meatLINE system is also used for liquids or pastes but it uses simple integration with a vacuum filter.

Using the most advanced controls, our metal detectors and metal separators deliver superior results with ease of use. They are equipped with 1 of 3 different versions of controls and displays that are specific to the system type and application needs: Simple 03 controls to full color 07 controls that allow ease of use, accessibility of information and traceability of products.

Using the most advanced controls, our metal detectors and metal separators deliver superior results with ease of use. They are equipped with 1 of 3 different versions of controls and displays that are specific to the system type and application needs: Simple 03 controls to full color 07 controls that allow ease of use, accessibility of information and traceability of products.

These Flat Coil Detectors prevent costly repairs and production downtime. Units are self-monitoring for added reliability. The ProfiLine features advanced circuitry which reduces false signals and product waste.

These Flat Coil Detectors prevent costly repairs and production downtime. Units are self-monitoring for added reliability. The ProfiLine features advanced circuitry which reduces false signals and product waste.

These Flat Coil Detectors prevent costly repairs and production downtime. Units are self-monitoring for added reliability. The ProfiLine features advanced circuitry which reduces false signals and product waste.

These Flat Coil Detectors prevent costly repairs and production downtime. Units are self-monitoring for added reliability. The ProfiLine features advanced circuitry which reduces false signals and product waste.

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