Internal circulation grain drying complete equipment
At present, mechanical drying in my country's agricultural production not only has low capabilities, but also models that can adapt to rural production conditions, production scale and economic affordability. less. Most of the existing drying equipment in our country are large and medium-sized, with an hourly processing capacity of 5 tons, 10 tons, or even larger. They are suitable for large and medium-sized, grain depots, farms, etc. The one-time investment is large and the operating costs are high. Farmers can only hope "Machine" sighed. At present, there are some small grain drying equipment in China, but they are not suitable for the specific conditions of rural areas in my country. There are two reasons:
(1) Most small grain drying equipment uses oil as fuel, and the operating cost is high. With the meager profits from grain production in our country, it is unbearable for the majority of farmers.
(2) Although there are some small-scale grain drying equipment that uses coal as fuel, their installed capacity generally exceeds the existing power capacity in the vast rural areas. Farmers need to increase the capacity before using drying equipment, which increases investment and operating costs for users.
Therefore, we believe that it is necessary to develop a small-scale grain drying equipment that adapts to the existing production methods and production conditions in rural areas. To this end, the Complete Equipment Research Institute of China Agricultural University has developed a system with rural areas and farmers after years of research and development. , 5HGN series grain drying complete sets that match the grain production scale of small farms and are suitable for professional households, village collectives and township agricultural service systems. Among them, the research and development of 5HGN-0.75 type and 5HGN-1.5 type are respectively ministerial-level key topics and national key scientific and technological projects, and have obtained national patents. At the same time, both models are walking type.
This series of complete equipment adopts the principle of circulating batch drying and has the following characteristics: (1) Compact structure, feeding, circulating and discharging all use one elevator. It is light in weight, small in size and takes up less space. Among them, the walking drying equipment is easy to move and can be closed and dried at the same time. (2) The circulation speed is fast, the mixing is uniform, the grain quality after drying is good, the original appearance, color and nutritional content of the grain are maintained, there is less broken rice, and the waist burst rate is low. (3) Automatic control, saving labor. Easy to operate and easy to master. (4) The installed capacity is small and adapts to the existing power capacity levels in rural areas. (5) Advanced heat consumption, power consumption and reliability coefficient indicators. (6) The price is low and suitable for the economic affordability of the vast rural areas. The operation cost is also lower than the cost of drying on the road.
5HGN series internal circulation grain drying complete equipment can be used for drying wheat, corn, rice and other crops, and can be widely used in rural areas, small farms and medium and small feed mills.
Section 1? Working parts of 5HGN series internal circulation grain drying equipment
The working parts of 5HGN series grain drying equipment include: drying tower, hot blast stove and air supply system, feeding device, lifting device, grain discharge device, dust removal system, and electrical control system. The walking internal circulation drying equipment also includes walking devices.
1. Drying tower
The drying tower consists of two inner and outer cylinders. The upper part of the inner cylinder is conical and the lower part is cylindrical. The upper part of the outer cylinder is cylindrical and the lower part is a conical structure. See 2-1 for the schematic diagram. Both the inner and outer cylinders are made up of several sieve plates. The sieve plate is made of thin steel plate with small holes according to certain rules. The conical shape of the upper part of the inner cylinder can ensure that the wet grain slides down smoothly along its surface without causing the grain to stagnate during the cyclic drying process and cause overheating. This allows the grain to be dried evenly and consistently to ensure the quality of the dried grain. Therefore, the angle between it and the horizontal plane is greater than the wet valley repose angle (the repose angles of rice, wheat, and corn are respectively 34°-45°, 23°-38°, 30°-40°). The conical shape of the lower part of the outer cylinder can also Ensure that the wet grain slides down smoothly
Introduction to the 5HGN-1.5/2.5/3.5/5 (walking) small grain drying equipment
This equipment is based on foreign references On the basis of similar products and combined with the current situation of my country's grain production, a small walking type internal circulation grain drying complete set of equipment has been successfully developed. It is suitable for drying corn, wheat, It is suitable for drying various food crops such as rice, wheat and corn with good quality. The most outstanding advantages of this machine are the low cracking rate of rice, less broken rice and white color.
The equipment consists of a feeding device, a drying tower, a high-efficiency coal-fired hot blast stove, a main fan, an induced draft fan, a dust collector
, an electrical control system, and a traveling device.
It has the characteristics of automatic temperature control, energy saving and pollution-free, low operating cost, large precipitation range (can drop to
safe moisture at one time), low cost, easy operation and convenient movement.
1. Dry wheat or corn 1.?5-2.5-3.5/5T per hour (rice 0.6-1.2-2.5t-3.5T)
2. Save coal (to Coal consumption for drying wheat per hour) 20-25, 30-35, 40-45, 50-60kg
3. Power saving (power consumption for drying wheat per hour) 8 degrees/H
p>4. Small installed capacity 10-13-18-27KW
5. Small floor area 20-60m2
6. Automatic control requires only operators ?2 people
7. Low drying cost
The drying cost per kilogram of grain (in wheat) is as follows:
Coal consumption per hour O? 02T/h×600 yuan/T=12 yuan/h
Staff salary? 2 people×10 yuan/h=20 yuan/h
Electricity fee 5. / h /kg?
Shandong Chunyang Drying Equipment Factory Hu? 13605364393