FHT hot air circulation drying tank

Xgh hot air circulation drying tank is a special re drying tank invented by our company for peanuts. The invention patent number is zl201410176589.0. It is composed of drying tank tower, circulating conveyor, heating system, circulating system, dehumidification system, discharge mechanism, homogenization mechanism and electrical control system.

The machine is suitable for materials: unbound granular materials, low final moisture requirements and materials that need to be dried for a long time, such as peanuts, walnuts, summer fruits, almonds, yellow pegs, grass fruits, Camellia oleifera seeds, etc.

The work flow is as follows:

The materials are sent to the circulating conveyor through the conveyor belt and lifted into the drying tank. When the drying tank reaches the loading capacity, stop feeding, turn on the circulating fan and heating system and start heating and drying. Control the drying temperature according to the drying requirements of materials. The drying temperature is determined according to the drying characteristics of the material in the whole drying process. Some materials may need different drying temperature ranges to improve drying efficiency and save drying cost.

The dehumidification is adjusted according to the relative humidity of the circulating air displayed by the hygrometer. When the humidity is high, open the dehumidification damper to increase the amount of dehumidification and reduce the circulating air volume, so as to achieve greater energy conservation and consumption reduction.

In order to improve the drying uniformity and drying efficiency of materials, when the moisture of materials in the early stage is large, the materials can be poured through the discharge mechanism and circulating conveyor to increase the circulation of materials. During circulation, rotate the discharge mechanism to the direction of the feed inlet of the circulating conveyor, turn on the circulating conveyor and discharge motor, the materials begin to circulate, dry and circulate, the materials in the drying tank are drying, and the materials in the circulating conveyor are slowly cooled. At the same time, the material circulates from the tower top to the tower bottom, which increases the drying uniformity and greatly shortens the drying time. When the material moisture is less in the later stage of drying, the cycle times and cycle time can be reduced.

Control of inlet air temperature: for steam heating, the steam volume is controlled and adjusted by relying on the automatic control circuit composed of XMT intelligent temperature instrument, platinum thermistor and steam electromagnetic stop valve, so as to achieve the purpose of adjusting the inlet air temperature. For hot blast furnace heating, the temperature is controlled by adjusting the proportion of air supply volume and circulating mixed air volume of hot blast furnace by adjusting the air valve.

The humidity sensor adopts the imported high-precision humidity sensor in-3610, which takes the high-performance single chip microcomputer produced in the United States as the core, and the compensation temperature sensor adopts the original temperature sensor of Zhipu in Japan for temperature compensation. It works in a high humidity environment to ensure its sensitivity, and adjusts the moisture discharge and the supplement of circulating air and cold air according to the humidity data to realize the utilization of heat energy, Realize energy saving and consumption reduction and improve product quality.

The heat source can be steam boiler or hot blast stove according to customer requirements,

The fuel can be coal, biofuel, natural gas and diesel.

Xgh hot air circulation drying tank adopts full-automatic program control. The electronic and programmable logic controllers are from Schneider and China Shenzhen Gumei Technology Co., Ltd., which is specialized in energy management and automation (Siemens or Mitsubishi programmable logic controller can also be customized according to customer requirements).

The advanced touch screen control panel allows you to flexibly set the required temperature, circulating air volume, dehumidification air volume, etc. in the drying room. It can also store different drying and baking process parameters of a variety of materials, which means that you can obtain stable drying and baking quality every time.

This plays a very important role in quality control and eliminating product loss. The dryer has a built-in diagnostic system that can alert the user of any failure of key components.

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