Jinkebotong Environmental Protection Technology (Jiangsu) Co., Ltd
Features and applications of vacuum rake dryers
Vacuum Rake Dryer Product Features: This machine adopts a large-area jacketed heating method, resulting in a large heat transfer surface and high thermal efficiency. The machine is equipped with a stirrer, creating a continuous circulation of material within the drum, further improving the uniformity of heating. The stirrer allows for the smooth drying of slurry, paste, and paste-like materials. Working Principle: This machine is a novel horizontal intermittent vacuum drying device...
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...
Applications of rake-type vacuum dryers in practical situations
In what situations are rake-type vacuum dryers used? They are used for drying wood and organic fertilizer. During the drying process, because the radial and tangential shrinkage rates of wood differ, the greater the difference between the two at the same moisture content, the greater the likelihood of cracking. If the difference in radial and tangential shrinkage rates is significant in the early stages of drying, surface cracking will occur. If the difference remains significant in the middle...
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...
Why are disc dryers widely used in industries such as pharmaceuticals and light industry?
Disc drying is widely used in the production of pharmaceuticals, light industry, dyes, food, and certain fertilizers. It is particularly suitable for heat-sensitive materials such as milk, pharmaceuticals, and dyes, and occupies an important position in drying technology. The principle of disc dryer is to increase the contact area between the liquid and the gas phase by atomizing the liquid into fine mist in a hot air stream. For example, atomizing 1 cm³ of liquid into 10 μm spherical droplets...
Disc dryers are ideal for drying iron powder.
Iron powder, after high-temperature drying, readily reacts with oxygen to form iron oxide. A disc dryer can solve this problem. Disc dryers can also perform low-temperature drying, and more importantly, they can perform vacuum drying. Due to their completely enclosed nature, a vacuum can be applied internally during the drying process, thus preventing any reaction between the iron powder and oxygen. This allows for the precision production of iron powder. Therefore, the disc dryer is a highly...
Daily operating procedures for pressure spray dryers
Prolonged operation or improper handling can cause material buildup in parts of the pressure spray dryer, affecting normal operation. In such cases, operation must be stopped for cleaning. To clean the material buildup inside the drying tower, open the cleaning door and use a long-handled broom to sweep away the material at the bottom of the funnel. Open the discharge valve and rinse the tower with tap water. Similarly, to remove dust from the cyclone separator, open the separator, sweep away...
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...
Methods to enhance the mechanical strength of hollow paddle dryers
To ensure the long-term, stable, and safe operation of hollow paddle dryers, all components must possess sufficient strength. Enhancing the mechanical strength of hollow paddle dryers primarily involves strengthening four aspects: static stiffness, static strength, fatigue strength, and fracture strength. This can be achieved through methods such as: 1. Design and manufacturing units are required to strictly control the design and manufacturing quality and eliminate potential hazards. In...
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...
Operation procedure of spray dryer for Chinese herbal extracts
Step 1: Connect the power supply to the spray dryer for Chinese herbal extracts and turn on the switch knob on the spray dryer. Step 2: Enter the system operation interface and click to turn on the fan. Step 3: Turn on the heater and set the required temperature for drying the Chinese medicine. The temperature of our low-temperature vacuum dryer for Chinese medicine is between 35 and 200 degrees Celsius. Step 4: Adjust the atomization pressure, generally 2 MPa, and adjust the needle...
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...
Can spray dryers be used to dry bacterial solutions?
Spray dryers can be used to dry bacterial solutions. A spray dryer is a device that can simultaneously dry and granulate liquids. It uses specialized equipment to spray liquid materials into a mist, which then comes into contact with hot air and is thus dried. This equipment is particularly suitable for drying some heat-sensitive liquids, suspensions, and viscous liquids, including bacterial solutions. In practical applications, spray dryers are widely used to dry various bacterial solutions,...
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...
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