Jinkebotong Environmental Protection Technology (Jiangsu) Co., Ltd
Rake tooth structure and precautions for rake dryers
Rake Tooth Structure The rake tooth device of the dryer consists of two sets of rake teeth, one facing left and one right, mounted at opposite angles on either side of the drive shaft. Each rake tooth has a square hole at its head to mate with the drive shaft, with adjacent rake teeth positioned 90° apart during assembly. The ends of the rake teeth come in two shapes: one flat and paddle-shaped, and the other also flat but irregularly shaped. Both are at a certain angle to the drive shaft's...
Belt dryer maintenance procedures
1. Routine Maintenance ① Before operating the DW series belt dryer each shift, check for leaks in valves and pipelines. ② Lubricate all rotating and friction parts regularly. ③ Check the reliability of the power grounding wires for each fan and electrical control box. ④ Check the indications of all instruments and meters for normal operation, and have them calibrated regularly by the metrology department. ⑤ Check the DW series belt dryer body for vibration, cracks, damage, and...
The entire drying process of a rotary flash dryer
In flash drying, wet material enters the grinding and drying section of the dryer body via a customized feed system. A grinding rotor disperses the wet material into very fine particles, which are fluidized in the grinding chamber by temperature-controlled hot gas from an air heater. The hot air (or inert gas) can be heated to 650°C, and its size is reduced at the bottom of the flash dryer as the wet product is dispersed. The system maintains negative pressure via an exhaust fan,...
Vacuum rake dryer application range
The vacuum rake dryer is a novel horizontal intermittent vacuum drying equipment. Wet materials undergo conduction evaporation, with a scraper agitator continuously removing material from the heated surface and creating a circulating flow within the container. After moisture evaporates, it is extracted by a vacuum pump. This machine employs a large-area jacketed heating method, resulting in a large heat transfer surface and high thermal efficiency. The agitator ensures continuous circulation of...
Correct installation method of horizontal fluidized bed dryer
Hot air transfers heat energy to wet materials through convection, carrying it away during vaporization. Besides the machine itself, the system includes auxiliary equipment. Horizontal fluidized bed dryers have relatively high efficiency, and installation is crucial. **XF Series Horizontal Fluidized Bed Dryer Installation Method:** 1. After positioning the equipment according to the plant and process conditions, prepare the embedded plates, foundations, and pre-drilled holes for the...
The important role of the airflow distribution plate in a high-efficiency fluidized bed dryer
High-efficiency fluidized bed dryers achieve drying by creating a high-speed airflow through small holes in the material bed, causing the material to boil. During this large-area contact between the gas and solid components, the moisture in the material evaporates rapidly. Therefore, the airflow distribution plate is a crucial component of a high-efficiency fluidized bed dryer. The airflow distribution plate in a high-efficiency fluidized bed dryer serves two purposes: supporting the material...
The role of mother liquor drying machine in the field of environmental protection
Mother liquor dryers are widely used in chemical, pharmaceutical, food, and environmental protection industries, especially when processing large quantities of mother liquor, where they offer significant advantages. In the environmental field, the main functions of mother liquor dryers are as follows: 1. Wastewater Treatment: Mother liquor dryers can treat various types of wastewater, such as coal chemical wastewater and other chemical wastewater. Through the concentration and recovery action...
Advantages of vibrating fluidized bed dryers
(1) In a conventional fluidized bed, material fluidization is achieved entirely by airflow, while in a vibrating fluidized bed, fluidization and conveying are primarily accomplished by vibration. Under the combined action of excitation force and hot air with a certain pressure, the material exhibits an ideal fluidization state, ensuring sufficient contact between the material and the hot air. (2) The addition of vibration reduces the minimum fluidization velocity of the material, causing...
Inspections to be performed before using a centrifugal spray dryer
1. Check all bearings and seals of the dryer for loose connections. 2. Check the lubrication status of all mechanical parts and ensure all water, air, and slurry pipe valves are in the correct positions. 3. Ensure all pipe connections are properly sealed to prevent unheated air from entering the drying chamber. 4. Check that doors and observation windows are closed and leak-free. 5. Check that the centrifugal fan is rotating in the correct direction. 6. Check that the regulating...
Key points to note when using a vacuum dryer
1. Vacuum dryers without explosion-proof or corrosion-proof chambers must not be used to dry flammable, explosive, or corrosive substances. If the items being dried are moist, a filter should be placed between the vacuum chamber and the vacuum pump to prevent moisture from entering the pump and causing malfunction. If the dried items are lightweight and small (small particles), a screen should be placed at the vacuum port in the chamber to prevent the dried material from being sucked in and...
How to control the temperature of a double-cone rotary vacuum dryer?
1. Maintain a suitable temperature: Since different materials and their moisture content require different drying temperatures, the general inlet flue gas temperature for a double cone rotary vacuum dryer is 600–800℃, and the outlet exhaust gas temperature is 80–120℃, depending on the material type and moisture content. 2. Do not arbitrarily change the temperature: Sometimes, due to rapid material feeding, the temperature inside the drum may be relatively low. In this case, do not arbitrarily...
Structure of the Double-Cone Rotary Vacuum Drying System
The double-cone rotary vacuum dryer is a versatile drying unit capable of extracting all types of solvents from filtration or centrifuge processes. Its central body features a dual-cone structure characterized by gentle curves. During system rotation, this configuration facilitates continuous mass rotation while enabling uniform and delicate mixing. Within the drying chamber of the double-cone rotary vacuum dryer, two electronic lump breakers not only disrupt pre-existing agglomerates in...
Key points to note when using a vacuum dryer
1. Vacuum dryers without explosion-proof or corrosion-proof chambers must not be used to dry flammable, explosive, or corrosive substances. If the items being dried are moist, a filter should be placed between the vacuum chamber and the vacuum pump to prevent moisture from entering the pump and causing malfunction. If the dried items are lightweight and small (small particles), a screen should be placed at the vacuum port inside the chamber to prevent the dried material from being sucked in and...
Principle of spray drying equipment
Among various drying equipment, spray dryers are one of the most widely used, used for drying solutions, suspensions, or slurries. Their biggest advantage is the ability to directly dry liquids into powders; however, their disadvantages include low thermal efficiency, large size, low production capacity, and high investment cost. Due to its unique advantage of directly producing uniformly powdered products from solutions or suspensions, spray drying is currently widely used in the chemical,...
Features of Rotary Flash Dryer
Features of Rotary Flash Dryer Because the material is micronized and highly dispersed due to centrifugal force, shearing, collision and friction, and the relative velocity between gas and solid is relatively large, heat and mass transfer is enhanced, resulting in high production intensity of the machine. Drying gas enters the bottom of the dryer, generating a strong rotating airflow that strongly washes and carries away the material on the wall, eliminating the phenomenon of sticking to the...
Methods to prevent spray drying tower wall adhesion
Here are five methods to prevent spray drying tower walls from sticking: 1. A double-walled drying tower is used, with air cooling in between to keep the wall temperature below 50℃; 2. Secondary air is tangentially introduced into the tower wall through cyclone vanes to cool the tower wall; 3. Install an air broom consisting of a row of nozzles near the wall inside the tower and make it rotate slowly along the tower wall; 4. Add air hammers to the tower wall to force the material adhering...
Pickling wastewater treatment project
During the production process, a large amount of acid washing wastewater was generated, which contained high concentrations of acidic substances and heavy metal ions. Traditional wastewater treatment methods were unable to effectively remove these pollutants, and they also had problems such as high treatment costs and secondary pollution. In order to achieve efficient treatment and resource recovery of acid washing wastewater while meeting strict environmental protection requirements, the...
How to control the burner of a hollow paddle dryer
1. Regarding the burner of this hollow dryer, its proportional control produces high flame temperature and efficiency, but it is not suitable for many applications, including low-temperature processes. Low-temperature processes typically have range ratios of 20 to 1, 30 to 1, or even higher for heat dissipation requirements. In proportional control systems, the burner is difficult to operate, with heat output range ratios greater than 10 to 1, making it difficult to control the flow rate...
Hollow Paddle Dryer Performance Characteristics
◎Low environmental pollution: It does not use air-carrying materials, resulting in minimal dust entrainment. The amount of solvent evaporation is very small, facilitating handling. It can be used for contaminated materials or in applications requiring solvent recovery. Closed-loop loop. ◎Low operating costs: The structure results in minimal wear and tear, leading to very low maintenance costs. ◎Stable operation: Due to the special compression-expansion stirring effect of the wedge-shaped...
Amino acid concentration project of the biological company
Project Name: Amino Acid Concentration Project of a Certain Biotech Company Evaporation rate: 0.5 tons per hour Evaporation process: Three-effect plate-type evaporation system Processing object: amino acid solution Final concentration: 8% Main material: 316 stainless steel Project Background A certain biological company in Zhejiang mainly engages in the production of amino acids. Amino acids, as an important biological active substance, are widely used in the fields of food,...
Pharmaceutical company's wastewater treatment project for sodium chloride and ammonium chloride
Project Name: Chloride Sulfate and Ammonium Chloride Wastewater Treatment Project of a Pharmaceutical Company Evaporation rate: 0.85 tons per hour Evaporation process: Two-effect evaporation crystallization system Processing object: Sodium chloride and ammonium chloride wastewater Final concentration: Crystallized salts (sodium chloride and ammonium chloride) Main material: 2205 duplex stainless steel Project Background A pharmaceutical company in Wuhan produced wastewater...
Features of high-efficiency boiling dryers
● Improve fluidity and reduce dust flying through powder granulation: ● Improve its solubility through powder granulation; ● Mixing, granulating and drying are completed in one machine for one-step granulation; ● Anti-static filter cloth is adopted, and the equipment is safe to operate; ● Pressure relief holes are set up, in the event of an explosion, the equipment personnel will not be harmed; ● The equipment has no dead ends, the loading and unloading materials are light and fast, rinsed...
Liquid crystal display unit wastewater treatment project
Project Name: Wastewater Treatment Project for Sodium Chloride and Sodium Bromide in Liquid Crystal Display Units Evaporation capacity: 3.5t/h and 2.5t/h for the two systems respectively Evaporation process: Two sets of three-effect forced circulation tubular evaporation systems Treatment object: Wastewater containing sodium chloride and sodium bromide Final concentration: Crystallization Main material: TA2 (titanium alloy) Project Background A certain liquid crystal...
A sodium chloride wastewater treatment project of a certain chemical unit
Evaporation capacity: 5.4t/h Evaporation process: MVR forced circulation tubular evaporation system Treatment object: sodium chloride wastewater Final concentration: Crystallization Main material: TA2 (titanium alloy) Project Background A certain chemical unit in Suqian, Jiangsu Province, has produced a large amount of wastewater containing sodium chloride during its production process. This type of wastewater is highly saline and corrosive. Traditional treatment methods are...
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