Which limestone needs screening?

1. For power plant desulphurization, for example: limestone manufacturers, broken material has a part of super-diameter particles;

2. recovery of ground stone powder.

The practical significance of power plant slag separation and the process flow and design scheme of slag dewatering, the successful case of slag dewatering process in the application of self-supplied power plant of Xinlianxin Fertilizer Company, the slag dewatering sieve has achieved zero discharge of slag water after production, and achieved energy saving effect. And economic and social benefits.

Material properties and characteristics:

water content when high and low, coal quality is good and bad, coal contains gangue

material crushing difficult problem: (such as sticky plugging, large amount of treatment, dust serious)

1. High moisture content of coal, easy to stick to block equipment during crushing;

2. Coal contains gangue, to hammer head or tooth plate wear more serious;

3. The dust is heavy.

1, flotation tailings of coking coal preparation plant
2, slime is produced by coal-water mixture
3, the slime from mine drainage and gangue mountain watering washed down

Characteristics of slime

1, fine grain size, more particle content, especially less than 200 mesh particles accounted for about 70% to 90%.
2, strong water holding capacity, high moisture content. The slime water content is generally more than 30% after sludge filtered by the disc vacuum filter. Folding belt filter dehydrated slime water content in 26% to 29%; the filter press dehydrated slime water content in 20% to 24%.
3, Ash content is high, low calorific value. The slime can be divided into three categories according to the ash and calorific value: low ash coal ash is 20% to 32%, calorific value of 12.5 ~ 20MJ / kg; middle ash coal ash is 30% to 55% , calorific value of 8.4 ~ 12.5MJ / kg; high ash coal ash is > 55%, calorific value of 3.5 ~ 6.3MJ / kg.
4, More sticky. As the slime generally contains more clay minerals, coupled with high moisture content, particle size composition is fine, so most of the slime viscosity, and some also have a certain mobility. Due to these characteristics, it is difficult to pile, store and transport slime. Especially in the stockpile, its shape is very unstable, water is lost, dry that is flying. The result is not only a waste of valuable coal resources, but also caused serious environmental pollution, and sometimes even constrained the normal production of coal preparation plant, a coal preparation plant a more difficult problem.

Dry mortar introduction

Dry mortar refers to a granular or powdery form of dry-sieged aggregate (such as quartz sand), inorganic cementitious materials (such as cement) and additives (such as polymers), which are physically mixed in a certain proportion. It can be transported to the construction site in bag or bulk form. After mixing with water, the material can be used directly. Also known as mortar dry powder, dry mix, dry mix, some construction adhesives also fall into this category. Dry mortar plays a role in bonding, lining, protection and decoration in a thin layer in the construction industry. Construction and decoration engineering applications are extremely extensive.

Screening needs Information product description Fine sand recycling machine is the development of equipment for the slurry material dehydration, disengagement, deslimatization , the machine biggest…

Sludge dewatering system includes slurry pump、dewater screen、 Cyclone and power supply system. Single set of systems can achieve grading、 leaching、dehydration，it can effectively reduce investment costs、operating costs.

Applicable industry

Pipe network sludge dewatering、river lake dredging、sewage pretreatment、Slag dewatering, mud treatment, construction mud, drilling mud dewatering, biochemical pool sewage treatment.
Ganfu sludge dewatering system use special slurry pump to pump sewage to the dewater screen mesh surface , through the large-diameter polyurethane sieve, screen out the large pieces of gravel and others, the mud under the sieve through the cyclone high concentration, is transport to the fine screen surface, make the most of the fine sand dehydration dry row. The system can be added sprinkler device, to achieve the three effects of cleaning, grading, dehydration.

Steel shot is a kind of spherical particles which made by special material through a special heat treatment. Steel shot is a common surface treatment material, there is a wide range of steel shots, the raw materials and equipment required are also different for different types of shots. The main features of steel shot are following :

Steel shot is a kind of high quality wear-resistant material, hardness of steel shot is moderate, strong toughness, good impact resistance and long service life. It has a good rebound, clean up fast, low consumption When cleaning the workpiece . Steel shot are used in a wide range of applications, such as castings, forgings, machined parts and heat-treated parts. General manufacturing, shipbuilding, etc. Also need to use steel shot.

First, melt high-quality steel , wool, steel scrap, and then thrown the molten steel into the water which forming by centrifugal plate with high-speed centrifuge, the sharp drop in the surface temperature of the steel shots, which is a quenching. The quenched pellets are dried and reheated to a suitable hardness in the furnace and the temper treated steel pellets are sorted by mechanical screen into different grades according to SAE standard for shot peening equipment.

Alloy powder is a metal powder formed by the partial or complete alloying of two or more components. Alloy powder is mainly composed of iron alloy powder, copper alloy powder, nickel alloy powder, cobalt alloy powder, aluminum alloy powder, titanium alloy powder and precious metal alloy powder. It also can be used to improve the wear resistance of the workpiece surface or to repair the size of wear parts and composite anti-friction materials for automotive applications, with the powder superalloy technology used in aerospace manufacturing, milling, there is a higher request about powder processing technology.