For drying of dehydrated vegetables, the highest domestic use rate is in the drying bath dryer. Because the investment per unit is small and the operation is simple, it is favored by small dehydrated vegetable companies. However, due to the heavy workload of the equipment, the serious impact of product quality (purely controlled drying process), the quality of non-uniform, poor shape and other shortcomings, and with China's economic development, social changes, labor costs and personnel management costs Greatly improved, the shortage of employees and the continuous improvement of market demand for product quality, the current domestic dehydrated vegetable enterprises with ample strength have begun to phase out, update the automatic assembly line. Since 2000, many drying equipment manufacturers in China have used the traditional belt dryer in the dehydrated vegetable industry. However, the dryer design and drying parameters have not been optimized according to the drying dynamics of the dehydrated vegetables, and the dehydration has been completed. A wide variety of vegetables, a variety of different vegetables have their own particularity, the general drying equipment factory only pays attention to the drying itself and ignores these requirements, so also let a lot of dehydrated vegetable companies in the purchase of this type of belt dryer cause With small losses, the dewatering vegetables in the industry do not have the adverse effects of drying up automatically.
Our company has continued to summarize experience in the process of drying and processing of existing agricultural products. After several generations of improvements and innovative developments, the DWP automatic drying line for dehydrated vegetables fully combines the drying dynamics of dehydrated vegetables to optimize the drying parameters. Air flow rate, drying temperature in different stages, penetration flow rate, relative humidity in dehumidification, and the amount of moisture discharged, so at present, it is the highest efficiency in China, the widest application area, low energy consumption, simple operation, low labor consumption, and product quality. The advantages of stability, high degree of automation, and large output are well received by dehydrated vegetable companies.
Comparing with traditional drying ponds (take 6 to 8 tons of dried carrots in 24 hours as an example) Traditional drying ponds produce 5.5 to 6.5 tons of carrot pellets and need 18 to 25 drying ponds (the output of the drying pond and the final moisture of the product And about the amount of sugar mix, the price of the equipment is about 0.25 to 320,000, the electricity consumption is about 70 degrees/hour, and the number of operators is 10 to 13 people per shift. According to the thermal efficiency of the drying tank, the steam consumption is about 4.3 tons/hour. , equivalent to coal consumption (coal low calorific value is 5500 kcal/kg) 550 kg/hr, if electricity is calculated at 0.8 yuan/kWh, labor wage: 60 yuan/day, coal is calculated at 950 yuan/ton, then production is 5.5~ The required drying cost of 6.5 tons of product: (60×10×2+70×0.8×24+550×0.95×24)=15084.0 yuan.
Our DWP drying line consumes about 60 kWh per hour for the production of 5.5 to 6.5 tons of carrot pellets. The number of operators is 2 people per shift. According to the thermal efficiency of the DWP drying line, the steam consumption is about 2.95 tons/hour. , equivalent to coal consumption (coal low calorific value is 5500 kcal/kg) 380 kg/hr, if electricity is calculated at 0.8 yuan/kWh, labor wages: 60 yuan/day, coal is calculated at 950 yuan/ton, then production is 5~ The required drying cost for 6 tons of product: (60×2×2+60×0.8×24+380×0.95×24)=10056.0 yuan. If the annual production is calculated for 180 days, then one year can save: 180 × (15084.0-10056.0) = 905,000 yuan, without using one year to recover the equipment. (The above data is related to electricity prices, labor wages, and coal prices in different regions for reference.)
Equipment Features Description:
(1) The contact part of the material is made of stainless steel, which meets the hygienic requirements of green food and is beautiful in appearance.
(2) Industrialization, high degree of automation, and high operational flexibility; each unit's circulating air volume, circulating air temperature, humidity, and belt speed can be adjusted independently.
(3) There is no need for manual intervention in the production process, and the material is automatically fed through the entire drying process to prevent secondary pollution.
(4) Conveyor with stainless steel mesh belt, Teflon non-stick mesh belt, stainless steel punched steel belt, according to different material characteristics and user needs a variety of options.
(5) A net belt cleaning system is provided. After the first part of the return net belt is sprayed with water and humidified, the residual material is cleaned by the automatic roll screen to prevent secondary pollution of the product.
(6) The labor intensity is low and the working environment is good. Workers do not need to operate in a high temperature environment (50-60°C).
(7) Low energy consumption, due to the use of jet penetration hot air circulation and other ways, the heat utilization rate is high, the average heat required for drying per kilogram of water is only 4200KJ/Kg.H2O (unit of moisture and heat requirements and material species, moisture Existential forms and other factors, only for reference).
(8) It has strong universality and wide adaptability, and it can adapt to the drying and dehydration of a variety of agricultural and sideline products.
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CHANGZHOU AVEC PACKING TECHNOLOGY CO., LTD , https://www.avecintl.com