800 1000kg h drying machine

Types of 800 1000kg h drying machines

A drying machine, often called a dryer, is an essential industrial machine used to remove moisture from materials. Raw materials like ore powder, slag, gravel, cement, etc., are commonly dried using an 800 1000kg h drying machine. Although there are many types of drying machines, the following are some of the most popular ways to classify them:

• Method of Heat Transfer: Drying machines can transfer heat in various ways, including conduction, convection, and radiation. A drum dryer is a classical drying machine that typically uses conduction to transfer heat. Rotary dryers are dryer machines that use convective heat transfer. They have a rotating cylindrical shape and a hot gas flow input. Electric dryers transfer heat to laundry by radiating heat from electric coils. Electric coils may also be found in freeze dryers and microwave dryers.
• Flow Orientation: Drying machines also differ based on the orientation of material flow. In a counter-current dryer, hot air moves in an opposite direction to the flow of materials. Tap dryers use air that moves parallel to the flow of materials. In concurrent drying machines, hot air moves in the same direction as materials.
• Design: Tray drying machines are designed with multiple trays stacked vertically. They are suitable for drying small batches of products. Rotary drying machines have many parallels to drum drying machines. Materials enter from the top and move in a circular pattern until they exit from the bottom. Belt drying machines have a unique feature—continuous operation. Wet material is evenly spread on a moving belt. The cooler and heater are both used to dry the material.

Summary of different drying machines

Drying machines are industrial machines that remove excess moisture from products using various principles. Several types of drying machines are available, including tray, rotary, belt, flash, and spray dryers.

Some drying machines are best suited for specific industries. For example, food drying machines must take sanitary standards into consideration. Food generally has a high energy value, so industries that use food drying machines want to retain the value and preserve them at the same time.

Although the working principle of a drying machine may differ, what remains constant is the need to keep the energy costs low. Suppliers need to look out for efficient drying machines that offer low-energy benefits without compromising the quality of the dried output.

Specification and Maintenance

The following table summarizes the specifications and maintenance requirements of a machine with an 800-1000Kg/h drying capacity.

• Material: Materials such as stainless steel or carbon steel with a negligible surface roughness, scaly, or porous quality should be used for the dryer. This is because dirty surfaces will pollute the dry product.
• Drying Medium: It is more economical to use steam, electricity, and natural gas or air as a heating medium. Air is the preferred option because, as a matter of course, it is the most abundant solid material in all organic substances.
• Drying Time: This is the length of time a given wet material with X percentage of moisture has to remain in the dryer for its entire moisture content, which is Y, to be evaporated.
• Drying Temperature: This is the optimum temperature to be maintained in the dryer that will ensure the material does NOT decompose or lose its bonding strength and other physical qualities, and at the same time, the moisture is evaporated.
• Fan Power: Fumes and exhaust gas must be drawn from the dryer at a pressure that will ensure that the drying temperature is maintained at the desired level. The fan's motor must, therefore, be powerful and efficient, with a minimum of 3 HP.
• Air Flow: The volume of air flowing through the dryer must be at least 10,000 cubic feet per minute so the drying action takes place quickly.
• Fire Safety: Proofs of the dryer's Fire Safety requirements include an automatic sprinkler system, standpipe/hose system, fire alarm/mass notification system, smoke detectors, water supply, hot temperature detectors, valves, exit signs, fire extinguishers, and dry hydrant.
• Fan & Motor Inspection: Every fortnight, the washing of the cooling tower, replacement of dehumidifier filters, belt alignment, lubrication of fan bearings, and inspection of all electrical connections must be done.
• Dryer Inspection: Every month or before and after every production run, the dryer must be inspected to ensure there are no gas leaks or obstructions or build-up in the burner or air passageways that can cause an operational hazard, overheating, or explosion.
• Fan Wash Inspection: This shall be done after every six months and will include the replacement of exhaust fans and washing the condensate pans.

Scenarios of 800 1000kg h drying machines

A drying machine has various applications based on what is being dried and the industry. The food industry, for example, relies heavily on drying machines to dry vegetables, fruits, meat, fish, grains, nuts, coffee, and tea. Most of these plants undergo drying to increase the shelf life after processing them using a drying machine.

In the textile industry, fabric and leather are the primary materials issues drying machines. While the finished products are mostly moisture-free and dry, many processes use drying machines to remove moisture from the materials before processing.

Drying machines also come in handy in the chemical and pharmaceutical industries. Powder, granules, and chemicals like pigments, catalysts, detergents, and herbicides are dried using a drying machine. The same applies to pharmaceutical drugs, which must be processed and dried before packaging and storage.

Furniture and wood manufacturing companies use drying machines to dry wood and lumber. The drying machine ensures the wood is dried uniformly and reduces the risk of deformation, splitting, or cracking.

Large-scale tomato paste and juice manufacturers use drying machines to process their products to avoid costly transportation fees and lengthy storage space. The resulting concentrated products are stored in a more efficient form and can be reconstituted by adding water.

Annually, millions of papers and documents are dried to conserve trees and avoid wasting time on energy-consuming processes. Paper drying machines enhance the paper's strength, making it more suitable for printing and writing. Most papers undergo drying treatments before they are sold.

Apart from these industries, many more rely on industrial dryers, including plastic processing, such as PET, PP, PA, and PVC, printing and coating, which strive for high production efficiency and rapid drying time, and construction, which primarily focuses on the drying of mortar, plaster, and tile adhesives.

How to Choose 800 1000kg h drying machines

• Industry requirements analysis:

  When determining the ideal drying machine for the workplace, it's vital to study what the industry needs. Look into the kinds of products that will be dried, their size, weight, and moisture content, as well as desired output. Also, examine the available space for equipment and the desired quality of dried products. An extensive knowledge of what the industry requires will help determine a machine with suitable parameters.

• Understand the principles of various drying machines:

  Familiarize oneself with the working methods and benefits of different drying machines. Choose an appropriate machine based on the available energy source and what the industry needs. For example, an electric conveyor dryer is suitable for an industry with limited space and high-temperature standards. In contrast, a fluidized-bed dryer is ideal for an industry with access to natural gas and a fast production line.

• Consider budget and value for money:

  A drying machine represents a significant investment; therefore, it is crucial to evaluate the quality and performance of the machine in relation to its price. Explore different brands and models of dryers to find one that offers the best features, reliability, and efficiency for the price. Compare the operating costs of the machine, including energy consumption and maintenance expenses, and choose a dryer that provides good value for money over its life cycle.

• Pay attention to the features and after-sales service:

  When choosing an 800 1000kg/h drying machine, opt for a brand with a good reputation and extensive distribution network. Research customer reviews to learn about their experiences with the dryers and the after-sales service. Select a supplier that offers comprehensive technical support, spare parts availability, and timely service to ensure a smooth operating experience for the business.

800 1000kg h drying machine FAQ

Q1: What is the function of a drying machine in the food industry?

A1: The drying machine's function in the food industry is to remove moisture content to preserve it for subsequent use or consumption.

Q2: What are the benefits of using a drying machine?

A2: The advantages of using a drying machine include reduced storage costs, preservation of the material's quality, and increased profitability due to the extended shelf life of dried products.

Q3: How does a drying machine work?

A3: While the workings of a drying machine may differ depending on the type, generally, it subjects the material to high temperatures to eliminate moisture content.

Q4: What are some common types of drying machines?

A4: Some typical drying machines include rotary dryers, flash dryers, paddle dryers, vacuum belt dryers, and spray drying machines.

Q5: What are some suitable drying machines for busy industrial settings?

A5: For heavy industrial use, the drying machines are rotary dryers, flash dryers, paddle dryers, and spray drying machines.