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Sand Dryer is also known as three layers drum dryer, is developed and manufactured on the basis of single drum dryer. It increases the drying time of wet raw materials. In terms of tightness and thermal insulation, the triple-pass rotary drum sand dryer is more reasonable than the single-pass rotary drum sand dryer. In terms of production capacity, the triple-pass rotary drum sand dryer is more than 60% higher than the single-cylinder dryer.
Sand dryer can be used for the drying of silica sand, river sand, quartz sand, frac sand, dry-mixed mortar, ash, etc. Widely used in dry-mixed mortar industry, cement, building materials, glass, foundry industry, chemical industry, etc. The heating source can be coal, biomass, oil and gas, etc.
The sand is conveyed to the silo by belt conveyor or bucket elevator, and transported to the feed end by the feeder of the silo. The inclination of the feeding pipeline should exceed the natural inclination of materials to facilitate sand flowing into the dryer smoothly. The rotating cylinder of the dryer is slightly inclined to the horizon. Feed the material from the higher end and the heat carrier enters from the lower end, such produces adverse contact between them Sometimes, they can be fed to the cylinder together. As the cylinder runs, the sand is carried to the lower side by gravity. In the process of moving forward, the wet raw material is roasted by the heat directly or indirectly to make the raw material dry quickly, and the final products discharge out by belt conveyor or screw conveyor. There is a shoveling plate installed in the dryer with the function of shoveling the materials up and down, to enlarge the contact area between airflow and materials to enhance the efficiency and make the material run quickly. The heat carrier is hot air, the flue gas, etc. After the dryer process, It needs a cyclone dust collector to catch the items in the airflow. You should use a bag-type or wet-type dust collector and afterward discharge the waste gas if you intend to further reduce the dust load of the exhaust.
1. The sand dryer is made of alloy steel plate manufacturing, the wear-resisting 3-4 times of ordinary steel, the service life of the equipment is more than 10 years.
2. Material initial moisture content 15%, final moisture to ensure below 0.5-1%, which is the preferred products of the cement plant, GGBS, and dry mortar production line.
3. The sand dryer thermal efficiency is as high as 80%, at the same time, the total power is low, 40% energy saving.
4. The fuel can be adapted to coal, oil, gas, it can be dried under 20-40mm particle material, aggregate, powder material.
5. The sand dryer covers an area of about 40% lower than a single drum dryer and civil investment reduced by about 50%.
6. No air leakage phenomenon solved the sealing difficulties, modular units, installation is convenient.
7. The discharge temperature is < 50 ºC, which can be directly fed libraries, without cooling.
| Model(m) | Output (T/h) | Coal consumption kg/t | Total power | ||
| River sand | Fly ash | Mineral waste residue | |||
| Φ2.0×2 | 4-5 | 2-3 | 3-5 | 12-14 | 5.5kw |
| Φ2.0×4 | 8-12 | 4-6 | 8-10 | 12-14 | 3kw×2 |
| Φ2.0×5 | 12-15 | 6-7 | 10-13 | 10-12 | 4kw×2 |
| Φ2.2×4.5 | 14-18 | 7-9 | 12-15 | 10-12 | 5.5kw×2 |
| Φ2.5×6 | 23-28 | 10-13 | 20-22 | 10-12 | 5.5kw×4 |
| Φ2.8×6 | 30-35 | 15-18 | 25-30 | 10-12 | 5.5kw×4 |
| Φ3.0×6 | 35-40 | 18-20 | 32-35 | 8-10 | 7.5kw×4 |
| Φ3.0×7 | 40-45 | 20-25 | 35-40 | 8-10 | 7.5kw×4 |
| Φ3.2×7 | 45-50 | 25-30 | 40-45 | 8-10 | 11kw×4 |
| Φ3.2×8 | 50-55 | 30-35 | 45-50 | 8-10 | 11kw×4 |
| Φ3.6×8 | 60-70 | 35-40 | 60-65 | 6-8 | 15kw×4 |
| Φ3.8×9 | 70-80 | 40-45 | 70-75 | 6-8 | 15kw×4 |
| Φ4.0×10 | 90-100 | 45-50 | 80-90 | 6-8 | 18.5kw×4 |
| Φ4.2×8.5 | 80-100 | 45-60 | 80-90 | 6-8 | 18.5kw×4 |
| (The output is set according to moisture: dry from 15% to 1-3%) | |||||
The sand dryer ordered by Hunan customers applies Jiutian's newly developed drying technology. At the same time, it combines the characteristics of sand with special equipment to dry the sand to the customer's demand.
Q1. Quality control
All the sand drying equipment offered by Zhengzhou Jiutian Technology Machinery Co., Ltd. are produced by China national standard drawings, nonstandard equipment will be produced by the drawings confirmed by clients. Zhengzhou Jiutian strictly follows ISO9001, SGS Quality management system. Most equipment will be tested for at least 8 hours in the factory before delivery. There is a record in the computer for each piece of equipment, spares can be easily confirmed when it is necessary.
Q2. Way of payment
Zhengzhou Jiutian offers various ways of payment, T/T, L/C, West Union, etc. All can be negotiated.
Q3. Delivery time
Normal delivery time within 45 days, complete production line, or larger equipment may take longer. Exact delivery shall be confirmed when placing the order.
Q4. Shipping lines
Priority rule based on clients' request, and freight cost, service, shipping date, date of arrival shall be considered.
Q5. Installation
Jiutian has several experienced technicians with passports ready to go for installation when installation service is needed.
Q6. Equipment warranty
The sand drying equipment from Zhengzhou Jiutian Technology Machinery Co., Ltd. with 12 months warranty.
Q7. What is the heat source of your stove?
Coal, wood, rice husk, or diesel, or natural gas. And our company is developing a gas stove.
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