The corn dryer is ideal for drying grain and oil. The processed product is fed from the top of the tower and passed through the feeder to ensure that the equipment is always fully loaded during operation.
The inwardly turned bottomless V-shaped baffle and the multi-row V-shaped baffle arranged in a staggered arrangement allow the processed product to be mixed, and also serve as an inlet and outlet passage for the dry air, and the fan sends the used gas. Into the collector, purified, most of the dry air can be recycled, so the fuel consumption is very small.
Select configuration
With the improvement of grain varieties, the improvement of yields and the increase of state investment in grain drying equipment, more and more large, medium and small grain drying facilities have been built. It is important to choose a dryer with high quality, long service life, economical and practical, high reliability and high degree of automation.
Model features
According to the relative movement direction of grain and airflow, the dryer can be divided into crossflow, mixed flow, downstream, countercurrent and forward flow, mixed reverse flow, and smooth mixed flow.
Cross flow dryer
The cross-flow dryer is the first type of machine introduced in China. It is mostly a cylindrical sieve hole type or square tower type sieve hole structure. There are still many manufacturers in China. The machine has the advantages of simple manufacturing process, convenient installation, low cost and high productivity. The disadvantages are: the uniformity of grain drying is poor, the unit heat consumption is high, and the drying of a variety of grains in one machine is limited. After baking, some grain quality is difficult to meet the requirements, and the inner and outer screen holes need to be cleaned frequently. However, the small circulating dryer can avoid some of the above disadvantages.
Mixed flow dryer
The mixed flow dryer is mostly a tower structure composed of a triangular or pentagonal box interlaced (fork) arrangement. Domestic manufacturers of this type of machine are more than cross-flow. Compared with cross-flow, its advantages are: (1) uniform supply of hot air, uniform moisture content after drying; (2) unit heat consumption is 5% to 15% lower; 3) Under the same conditions, the required fan power is small, and the consumption of drying medium is also small; (4) The variety of dried grains can be both dry and dry; (5) easy to clean and difficult to mix. The disadvantages are: (1) the structure is complicated, the manufacturing cost is slightly higher under the same productivity conditions; (2) a small part of the grain at the four corners of the dryer is slow.
Downstream dryer
The downstream dryer is mostly a tower structure combining a funnel-type intake port and a horn-shaped box exhaust passage, which is different from the mixed-flow dryer by a main air duct for supplying hot air, but by multiple (levels) The hot air duct supplies different or partially identical hot air. The number of domestic manufacturers is less than that of mixed-flow dryer manufacturers. The advantages are: (1) the use of hot air is high, and the temperature of the first-grade high-temperature section can reach 150-250 °C; (2) the unit heat consumption is low, which can ensure the grain after baking. (3) The dryer above the three-stage downstream has the advantage of reducing the water and can obtain higher productivity; (4) The maximum precipitation is continuous during continuous drying, generally up to 10% to 15%. (5) The most suitable food crops and seeds for drying large water. The disadvantages are: (1) the structure is more complicated, the manufacturing cost is close to or slightly higher than that of the mixed-flow dryer; (2) the thickness of the grain layer is large, and the high-pressure fan required is high in power and high in price.
Smooth flow dryer
Pure counter-current dryers are rarely produced and used. Most of them are used in conjunction with dryers for other airflows, ie for the cooling section of downstream or mixed-flow dryers, forming a counter-flow and mixed counter-flow dryer. The advantage of countercurrent cooling is that the natural cold air can be fully contacted with the grain, which can increase the cooling rate and appropriately reduce the height of the cooling section. The counter-reverse flow, mixed counter-flow and smooth mixed-flow dryers respectively utilize their respective advantages to achieve high-temperature rapid drying, improve drying capacity, increase unit heat consumption, and ensure uniform grain quality and moisture content.
Heating characteristics
1. High-efficiency directional radiation The object is directionally heated in the form of infrared electromagnetic wave radiation. The electromagnetic wave generated by the heat source is repeatedly absorbed, reflected and excited by the intermediate absorber and the reflector. The thermal photon beam is formed inside the object to be heated. The high-speed vibration and rotation (without transition) generate heat energy, which has achieved the purpose of multi-level simultaneous heating inside and outside the object, and effectively utilizes energy.
2, the best match speeds up the heating through the doping of the absorber material and the rare elements of the surface radiation material, so that the peak wavelength of the radiation "window" and the absorption "window" are optimally matched, fully absorbing the maximum radiant energy, reaching the most Good heating effect.
3. Overall unit control and temperature precision The unit multi-point control technology is implemented in an infrared electromagnetic wave heating device, which can control the radiant flux of each unit by itself, and conveniently realize the absorption radiant flux of the lateral points of the heated object. According to the set value of the control system, the precise temperature control requirements are achieved, and the temperature difference caused by environmental conditions is solved.
4. The corn dryer has small thermal inertia and rapidly heats up the absorber of the product. Due to its unique formula, the absorption is strong, the heat rate is high, the heating and cooling speeds are further accelerated, and the strong transient is effective. Save energy.
5, the service life of corn dryer is greatly improved. In the process of processing hot raw materials, the materials processed by the most advanced international and domestic technical means, there is no vertical short circuit and arc oxidation of the terminal, the service life exceeds domestic Any electric heating product.
6. Reuse, easy to replace and maintain. The main components of the product have weak function attenuation, convenient heat source replacement, and low price. In the whole device, only need to replace the heat source and clean the reflector regularly, the product life can reach 8-10 years.
The inwardly turned bottomless V-shaped baffle and the multi-row V-shaped baffle arranged in a staggered arrangement allow the processed product to be mixed, and also serve as an inlet and outlet passage for the dry air, and the fan sends the used gas. Into the collector, purified, most of the dry air can be recycled, so the fuel consumption is very small.
Select configuration
With the improvement of grain varieties, the improvement of yields and the increase of state investment in grain drying equipment, more and more large, medium and small grain drying facilities have been built. It is important to choose a dryer with high quality, long service life, economical and practical, high reliability and high degree of automation.
Model features
According to the relative movement direction of grain and airflow, the dryer can be divided into crossflow, mixed flow, downstream, countercurrent and forward flow, mixed reverse flow, and smooth mixed flow.
Cross flow dryer
The cross-flow dryer is the first type of machine introduced in China. It is mostly a cylindrical sieve hole type or square tower type sieve hole structure. There are still many manufacturers in China. The machine has the advantages of simple manufacturing process, convenient installation, low cost and high productivity. The disadvantages are: the uniformity of grain drying is poor, the unit heat consumption is high, and the drying of a variety of grains in one machine is limited. After baking, some grain quality is difficult to meet the requirements, and the inner and outer screen holes need to be cleaned frequently. However, the small circulating dryer can avoid some of the above disadvantages.
Mixed flow dryer
The mixed flow dryer is mostly a tower structure composed of a triangular or pentagonal box interlaced (fork) arrangement. Domestic manufacturers of this type of machine are more than cross-flow. Compared with cross-flow, its advantages are: (1) uniform supply of hot air, uniform moisture content after drying; (2) unit heat consumption is 5% to 15% lower; 3) Under the same conditions, the required fan power is small, and the consumption of drying medium is also small; (4) The variety of dried grains can be both dry and dry; (5) easy to clean and difficult to mix. The disadvantages are: (1) the structure is complicated, the manufacturing cost is slightly higher under the same productivity conditions; (2) a small part of the grain at the four corners of the dryer is slow.
Downstream dryer
The downstream dryer is mostly a tower structure combining a funnel-type intake port and a horn-shaped box exhaust passage, which is different from the mixed-flow dryer by a main air duct for supplying hot air, but by multiple (levels) The hot air duct supplies different or partially identical hot air. The number of domestic manufacturers is less than that of mixed-flow dryer manufacturers. The advantages are: (1) the use of hot air is high, and the temperature of the first-grade high-temperature section can reach 150-250 °C; (2) the unit heat consumption is low, which can ensure the grain after baking. (3) The dryer above the three-stage downstream has the advantage of reducing the water and can obtain higher productivity; (4) The maximum precipitation is continuous during continuous drying, generally up to 10% to 15%. (5) The most suitable food crops and seeds for drying large water. The disadvantages are: (1) the structure is more complicated, the manufacturing cost is close to or slightly higher than that of the mixed-flow dryer; (2) the thickness of the grain layer is large, and the high-pressure fan required is high in power and high in price.
Smooth flow dryer
Pure counter-current dryers are rarely produced and used. Most of them are used in conjunction with dryers for other airflows, ie for the cooling section of downstream or mixed-flow dryers, forming a counter-flow and mixed counter-flow dryer. The advantage of countercurrent cooling is that the natural cold air can be fully contacted with the grain, which can increase the cooling rate and appropriately reduce the height of the cooling section. The counter-reverse flow, mixed counter-flow and smooth mixed-flow dryers respectively utilize their respective advantages to achieve high-temperature rapid drying, improve drying capacity, increase unit heat consumption, and ensure uniform grain quality and moisture content.
Heating characteristics
1. High-efficiency directional radiation The object is directionally heated in the form of infrared electromagnetic wave radiation. The electromagnetic wave generated by the heat source is repeatedly absorbed, reflected and excited by the intermediate absorber and the reflector. The thermal photon beam is formed inside the object to be heated. The high-speed vibration and rotation (without transition) generate heat energy, which has achieved the purpose of multi-level simultaneous heating inside and outside the object, and effectively utilizes energy.
2, the best match speeds up the heating through the doping of the absorber material and the rare elements of the surface radiation material, so that the peak wavelength of the radiation "window" and the absorption "window" are optimally matched, fully absorbing the maximum radiant energy, reaching the most Good heating effect.
3. Overall unit control and temperature precision The unit multi-point control technology is implemented in an infrared electromagnetic wave heating device, which can control the radiant flux of each unit by itself, and conveniently realize the absorption radiant flux of the lateral points of the heated object. According to the set value of the control system, the precise temperature control requirements are achieved, and the temperature difference caused by environmental conditions is solved.
4. The corn dryer has small thermal inertia and rapidly heats up the absorber of the product. Due to its unique formula, the absorption is strong, the heat rate is high, the heating and cooling speeds are further accelerated, and the strong transient is effective. Save energy.
5, the service life of corn dryer is greatly improved. In the process of processing hot raw materials, the materials processed by the most advanced international and domestic technical means, there is no vertical short circuit and arc oxidation of the terminal, the service life exceeds domestic Any electric heating product.
6. Reuse, easy to replace and maintain. The main components of the product have weak function attenuation, convenient heat source replacement, and low price. In the whole device, only need to replace the heat source and clean the reflector regularly, the product life can reach 8-10 years.
Our vegetables washing machine is made of 304 stainless steel, which is sturdy and durable, and the raw materials of the equipment will not be damaged, so as to achieve high cleaning, labor saving, water saving, stable and reliable equipment and other effects. The cleanliness of the objects to be cleaned is more than three times higher than that of manual conventional washing.
This washing machine uses high-pressure water flow and a bubble generating device to impact the surface of the object to be cleaned. The energy generated by the bubbles breaking when they contact the object will have an impact and brushing effect on the surface of the object to be cleaned. Brushing the surface of the object to be cleaned will be cleaned.
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