Zhengzhou Kehua Industrial Equipment Co., Ltd

Zhengzhou, Henan, China

We are offering biomass dryer (rexxarmachine). now as energy shortage becomes a big concern of governments all over the world, governments encourage and support companies, universities, institutions to research energy issues. Biomass dryer emerges in recent years under such circumstances. With biomass dryer, many waste in agriculture and forestry in the past becomes now new energy supply after drying process, such as animal manure, sawdust, wood shaving, wood chips, forage, palm fiber, alfalfa, husk, straw, etc. there are several variations of biomass dryer, but the most widely-used is the directly heated single-pass biomass dryer. In this type of dryer, hot gases are contacted with biomass material inside a rotating drum. The rotation of drum lifts solids in biomass dryer, so they can tumble through the hot gas, promoting better mass and heat transfer. If contamination is not a concern, hot flue gas can be fled directly into the air. Or, it has to be processed by cyclone dust collector. the biomass and hot air normally flow co-currently through biomass dryer so the hottest gases come in contact with wettest materials. But for materials where temperature is not a concern, the flue gas and materials flow in opposite directions, so the driest materials are exposed to the hottest gases with the lowest moisture. indirectly heated biomass dryer uses a heat source-steam or hot air-passing through the outer wall of biomass dryer or through an inner central shaft to heat biomass dryer by conduction. In this way, a high flue gas temperature can be used for heating while reducing the fire risk by limiting the temperature of the gas in

Zhengzhou kehua industrial dryer co., ltd is a professional manufacturer engaged in industrial dryer. Established in 1970s, we have accumulated rich experience in technical problems and grown to be leader in industrial dryer industry. Our industrial dryer mainly includes rotary dryer, vertical dryer, airflow dryer and belt dryer which are widely used in construction, mining, metallurgy, chemical, agriculture, forestry industry. now our industrial dryer has been exported to america, israel, australia, india, philippines, etc. Good credit, high quality, competitive price, all these help us win praise from partners. we hope to establish long-term business relationship with friends from various countries. There is various industrial dryer in the workshop.

We are offering coal dryer. coal dryer is now hot equipment in the world. Coal is vital energy resource in various industries and daily life. When coal is washed or stored in open yard, some is washed away which forms coal slime later. This is a great loss. Coal slime is of high moisture and low heat, which means poor economic value. However, coal dryer solves this problem perfectly. under normal conditions, moisture inside of coal slime is 20-30%. After drying, the moisture can be reduced to 0.1%. Thus, coal slime can be used in many occasions. Coal dryer turns waste into treasure. how does coal dryer work?coal dryer is divided into several sections for higher efficiency. a. transmission section. Wet material enters coal dryer, then it gets full contact with hot air, moisture inside gets vaporized. With lifting boards elevating and scattering materials repeatedly, wet material is conveyed to next section. b. cleaning section. When materials fall down, they are easy to stick on the inner wall of the cylinder. During this process, cleaning device breaks the clumps. This spreads the surface area of heat exchange and improves heat efficiency. c. lifting boards section. Wet material gets loose and of low moisture content that meets the requirement. d. discharging section. No lifting boards in this area. Materials roll to the outlet coal dryer. The whole drying process is completed.

We are offering fluorite dryer.fluorite dryer is a type of industrial dryer employed to reduce or minimize the liquid moisture content of the material it is handling by bringing it into direct contact with a heated gas. fluorite dryer is made up of a large, rotating cylindrical tube, usually supported by concrete columns or steel beams. Fluorite dryer slopes slightly so that the discharge end is lower than the material feed end in order to convey the material through the dryer under gravity. Material to be dried enters the dryer, and as fluorite dryer rotates, the material is lifted up by a series of internal flights lining the inner wall of the drum. When the material gets high enough to roll back off the fins, it falls back down to the bottom of fluorite dryer, passing through the hot gas stream as it falls. Skype: rexxarmachine

We are offering lignite dryer. Introduction of lignite dryer: low rank coals (lrcs), also referred to as lignite or brown coal, account for more than 50% of the world coal reserves. Their applications, however, are limited due to their high moisture amount, low heating value and spontaneous combustion property. For example, moisture content in victorian brown coal can be as high as 66%, whereas silesian anthracite may contain as little as 0.6%. Lignite dryer is used to reduce the moisture content to improve heating value. Lignite dryer usually consists of furnace, conveyor, feeder, rotating drum, motor, reducer, front and back rings, support and drag rollers, discharger, dust collector. Principle of lignite dryer: lignite is sent into drum by feeder. As drum rotates, lignite moves forward slowly. At the same time, it is lifted and scattered by lifting boards repeatedly. Under high temperature and strong airflow, lignite gets full contact with hot air. Most moisture is removed during this process. Dried lignite gets discharged at the outlet of lignite dryer. Skype: rexxarmachine

We are offering cascade dryer. Cascade dryer is a type of industrial dryer employed to reduce or minimize the liquid moisture content of the material it is handling by bringing it into direct contact with a heated gas. Cascade dryer is made up of a large, rotating cylindrical tube, usually supported by concrete columns or steel beams. The cascade dryer slopes slightly so that the discharge end is lower than the material feed end in order to convey the material through cascade dryer under gravity. Material to be dried enters the dryer, and as cascade dryer rotates, the material is lifted up by a series of internal fins lining the inner wall of the dryer. When the material gets high enough to roll back off the fins, it falls back down to the bottom of the dryer, passing through the hot gas stream as it falls. This gas stream can either be moving toward the discharge end from the feed end (known as co-current flow), or toward the feed end from the discharge end (known as counter-current flow). The gas stream can be made up of a mixture of air and combustion gases from a burner, in which case the dryer is called a direct heated dryer. Cascade dryer is suitable to dry metallic and nonmetallic mineral, clay in cement industrial and coal slime in coal mine etc. Cascade dryer can be widely used to dry sludge, sand, coal, gypsum, sawdust, mineral slag, sludge, chicken manure, and it is simple to operate. My skype: rexxarmachine

We are offering slag dryer. Introduction of slag dryer: slag dryer is widely used in construction, metallurgy, mining, chemical, cement industry. Slay dryer, namely rotary dryer, is mainly composed of rotating drum, draft fan, breaking device, lifting boards, self-cleaning device, transmission device, conveyor, furnace, reducer, sealing device. Advantage of slag dryer: a. anti-overload ability, large handling capacity, less energy consumption, low costb. slag dryer adopts co-current flow method for high evaporation intension, high heat efficiencyc. operation parameter of slag dryer is adjustable according to property of materials, sufficient heat exchanged. new feeding and discharging device to avoid blocking, discontinuous, uneven and revert phenomenon, low load of dust catching system.E. slag dryer is equipped with strengthened cleaning and heat-transmission device, no phenomenon of attachment on the inner wall of the cylinder, wide flexibility for moisture and stickiness. Skype: rexxarmachine