Apron Feeder enjoys advantaged advantages over textured conveyors and feeders used in industries such as cement, metallurgy, chemical industry, coal, biomass power plant, and renewable resources.Apron has two major advantages over other feeder kits:
1) Large conveying output, conveying output per hour can reach more than 3000 tons, such a large conveying output is other types of conveyor can not reach.
2) It can withstand the larger bin pressure and the impact of large materials, and it has great adaptability to the shape and size of materials.
Disadvantages of this feeder: It's a large investment compared to other texters, and its delivery distance is somewhat limited.
1. Apron Application in the cement industry
Used in the cement industry, apron feeder is primarily used with the following sections:
1) The limestone is broken
Limestone as cement plant use more raw materials, the particles are very large, some reach more than 1 meter, and the size of the limestone ball mill to control under 25mm, the need for limestone crushing, many manufacturers use large jaw crusher or a single section of hammer.Heavy feeder is used for a wide range of feeders, but note that different sizes of crushers require the choice of a compatible feeder.
2) Raw materials grinding ingredients.
Grinding materials into the main material is limestone, clay and iron powder, the three kinds of raw materials according to certain proportion to expect that ball mill, usually apron feeder and belt scale, put the apron feeder under the raw materials warehouse, make apron feeder can bin under pressure, and the apron feeder evenly feed the raw material on the belt scale (belt scale can't bin under pressure), play a role of measurement.
3) Cement mill batching
The main raw materials into the cement mill are cement clinker, mixing material and gypsum. These three raw materials must also be fed into the cement mill in a certain proportion.Apron feeder functions like a raw material grinding mill.
Note: Limestone feeder is commonly used with heavy tone stabilizer, while raw and cement grinding ingredients are usually used with light or medium tone stabilizer.
Ii. Apron Application in quarries Buildings, roads and high-speed railways all depend on stones, which are made from chunks of limestone mined from the mountains.Large limestone after crushing, sieving and other processes to achieve a variety of specifications of stone.The heavy Apron feeder is the first processing device made with stone.Heavy apron Feeder is commonly used in the bottom of raw material bins for continuous and even feeding to primary crushers. It works reliably in harsh environments such as open air and humidity.
First of all, the heavy apron feeder can withstand the direct impact of materials discharged from over tens of tons of harvers, and has the advantages of conveying materials with high density, large particle size, and strong wear properties. The general conveying material density can be over 2400kg/m3, with particle size over 1000mm, and temperature below 400℃.Due to the large size of the feed, this is the same as the ore size of the cement enterprise open-pit mining, relative to the vibration feeder, can reduce the workload of secondary crushing, reduce the production cost of the enterprise, but also more economic and safe.Also, with the same feed capability, the Heavy apron feeder is only a notch or roughly the same level of motor power over a vibrating feeder, and doesn't consume much more power.
Second, heavy apron feeder is durable, has a long service life, low maintenance, easy to start and stop, and stable and reliable operation.The machine at the bottom of the commonly used in raw materials warehouse, because can be directly bear the huge pressure of minerals in the ore bin, raw ore bin can do appropriately a few bigger, can store more ore, ensure smooth feeding uniform, follow-up crushing work reliable, is conducive to protect the follow-up equipment normal operation, there will be no cutting or instant flash moment.In cement mines, the equipment is often inclined to install, the big dip Angle has reached 25°, which makes the weight of the material borne by the feeder along the direction of the feeder length produces a component force, thus the actual material pressure borne by the feeder is far less than the actual gravity of the material, greatly reducing the load of the feeder.Due to the larger installation Angle of the feeder, on the one hand, when the equipment is shut down, the ore in the warehouse can be guaranteed not to roll down the feeder trough to the crusher;On the other hand, in terms of equipment and technological configuration, the height difference can be reduced, and the site adaptability can be stronger when the site is selected for the production line, and the raw ore can be transported to high places to avoid the excessively high raw material unloading platform, which will increase the transportation cost.
Iii. Application of apron feeder in the laterite nickel industry The extraction of nickel from laterite nickel ore is favored by domestic stainless steel manufacturers. The extraction of nickel can only be completed by the crushing, drying and calcination of laterite nickel ore.The first process is feeding material from the feeder to the toothed roller crusher. Due to the high moisture and viscosity of laterite nickel ore, the feeder and belt conveyor cannot be used with the ordinary apron feeder, because feeder tends to stick materials, while the belt feeder cannot withstand material impact.
The new type of apron feeder developed by our company overcomes the disadvantages of feeder and belt machine, which is non-stick with material and able to withstand material storage pressure. It is the first choice for laterite nickel ore manufacturers.
Iv. Apron Application in the regenerative resources industry
In recent years, with the speeding up of economic development speed, constant speed up urbanization, urban infrastructure projects continue to increase, with the construction of the construction waste is increasing, the construction garbage, processing difficulties, a large number of construction waste accumulation points of the city of the city, not only can bring to people's life.
In order to reasonably settle and treat these construction wastes, many places in China have built new construction waste disposal sites to collect and treat construction wastes uniformly, recycle and reuse, so as to gradually solve the problem of stacking construction wastes.
Technological process of construction waste crushing:
Raw materials for construction waste are fed into the crushing equipment via the apron feeder, and then picked up by the vibrating screen before being delivered by a belt conveyor or scale-board conveyor.
Major equipment include: feeder, jaw crusher, belt conveyor and vibrating screen. The whole set of equipment features reliable performance, stability, flexible combination, strong adaptability, easy maintenance, etc., providing a new development idea for urban construction to go on the road of virtuous cycle.
Application of Apron Feeder in biomass power plants
Bridges and arches are often encountered in biomass feeders, especially for soft straw materials. Due to the light and soft texture, weak fluidity, serious entanglement of materials, and the cutting process is difficult to ensure the ideal length, Bridges and arches are very common in each link of feeders.In addition, the conventional spiral feeding device often has the situation of canopy and rotation obstruction when dealing with straw materials, which leads to the unstable output of biomass utilization process equipment and affects the safe and stable operation.At the same time, due to the special national conditions in China, the mode of purchase, storage, transportation and pretreatment is quite different from that of foreign countries. Domestic biomass fuel has a strong particularity, and imported equipment cannot adapt very well.Therefore, according to the actual situation of biomass raw materials in China, it is of great significance to develop various biomass utilization engineering suitable feedstock devices that can provide continuous and stable feedstock for them.
Process flow: The biomass energy fuel inside the bin is transported to a belt conveyor vertically placed with the new plate conveyor produced by our company, and the fuel is transported to a small bin in front of the furnace by the belt conveyor, and then the feeding port of the double-pipe screw conveyor completes the feeding in front of the furnace.
Six: Apron Application in a coal preparation plant
Currently, commonly used coal feeders in coal preparation plants include vibrating feeder and feeder, which feed coal evenly into conveying equipment or coal preparation equipment from a bunker or storage yard.Classified as heavy or regular apron feeder, depending on how much of the material is under load and the size of the feed grain, the feeder is generally only light with this tone in coal preparation plants.