Starch Mixture Hollow Blade Sludge Dryer Machine Vacuum Rake Rotary Drum Paddle Dryer

• After-sales Service: Online Technical Supporting
• Warranty: 1 Year
• Type: Vacuum Drying Equipment
• Application: Block
• Fuel: Heavy Oil
• Operating Pressure: Vacuum
• Roller Number: Steam
• Cloth Membrane Forms: Top Feed
• Vacuum Drying Equipment Type: Vacuum Harrow
• Condition: New
• Transport Package: Seaworth
• Specification: 5-5000kg
• Trademark: ZHENGAN
• Origin: Changzhou
• HS Code: 8419399090
• Production Capacity: 4 Sets/Month

Product Description

Hi, I am Joanna
 

And now working for Changzhou ZHENXING Environmental Technology Engineering Co., Ltd.

I know you are looking for good-quality dryer equipment.
 

Any questions about the vacuum disc dryer feel free to contact me, I would like to offer you full technical support and online video service, which will help you to know about the full drying system very well.
 

So our company can be a good choice, WHY?

 

 

 

You may be interested in the following information:

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• ^{Percentage of product loss.}
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• 

Introduction

Thermal drying is an intermediate sludge treatment process that consists of evaporating the water in the sludge. It significantly reduces the volume and weight of the sludge so that it is easier to recover.

The hollow paddle dryer is an indirect heating type composed of the casing with a jacket and shaft with a disc that contains steam or other heating media, Hollow paddle dryer (also called disc dryer) can dry all kinds of animal waste in an atmosphere controlled environment with multipoint thermal control, such as poultry entrails, municipal sludge, textile sludge, catering sludge, chemical sludge, etc.

The paddle (discs ) cover 80% of the total heating surface.

Compared to the other indirect heating dryer, the disc has a compact design and high thermal efficiency.

1. JYG sludge dryer has low energy consumption: due to indirect heating, it does not carry a large amount of air to take away the heat, and the outer wall of the dryer is provided with a thermal insulation layer.
 

2. JYG sludge dryer has low use cost: it has a huge heat transfer surface per unit effective volume, which shortens the treatment time, reduces the size of the equipment, and greatly reduces the building area and building space.

3. Wide range of materials to be treated: different thermal media are used to treat both heat-sensitive materials and materials requiring high-temperature treatment. Common media include steam, heat transfer oil, hot water, cooling water, etc., which can be operated continuously or intermittently. It can be used in many fields.

4. Small environmental pollution: vacuum or small air volume is used to take away the moisture in the material. The entrainment of dust and material is very small, and the evaporation of the material solvent is very small, which is convenient for treatment. Closed-circuit circulation can be adopted for contaminated materials or working conditions requiring solvent recovery.

5. Low operation cost: low-speed mixing and reasonable structure, small wear, and low maintenance cost.

6. Stable operation: due to the special compression expansion mixing function of the wedge-shaped blade, the material particles are in full contact with the heat transfer surface. In the axial range, the temperature, humidity, and mixing gradient of the material are very small, so as to ensure the stability of the process.

Equipment design conditions

Application:

<sup>Paddle dryer (vacuum disc dryer) has been successfully used in food, chemical, petrochemical, dye, industrial sludge, and other fields.
The characteristics of heat transfer, cooling, and stirring of the equipment enable it to complete the following unit operations: combustion (low temperature), cooling, drying (solvent recovery), heating (melting), reaction, and sterilization.

At the same time, the stirring blade is the heat transfer surface, which increases the heat transfer area per unit effective volume and shortens the treatment time. The heat transfer surface of the wedge-shaped blade also has the function of self-cleaning.

Compression - expansion mixing function makes the materials mix evenly. The material moves in a "piston flow" along the axial direction. In the axial range, the gradient of temperature, humidity, and mixing degree of the material is very small. Using heat transfer oil or steam as a thermal medium, the paddle dryer can complete low-temperature combustion.

For example, the combustion of calcium sulfate dihydrate (Ca2SO4 · 2H2O) is transformed into calcium sulfate hemihydrate (Ca2SO4 · 1 / 22h2o). Sodium bicarbonate (NaHCO3) is converted into soda ash (na2hco3) by calcination. The cooling medium, such as water and cooling brine, can be used for cooling. For example, the paddle-type soda cooler used in the soda ash industry replaces the old air-cooled soda cooler, saving energy and tail gas treatment equipment and reducing operating costs. Drying, the main function of the equipment does not to use hot air, so that solvent recovery, energy consumption, and environmental control are in an ideal state of easy treatment. It is especially suitable for solvent recovery, flammable, and easily oxidized heat-sensitive materials. It has been widely used in fine chemical, petrochemical, and dye industries. In the axial section, the uniformity of temperature, humidity, and mixing degree makes the equipment can be used to heat or melt or react with some solid materials. It has been successfully used in compound fertilizer and modified starch industries. The paddle dryer can be used to sterilize food and flour. The large heating area in the unit effective volume can quickly heat the material to the sterilization temperature, avoiding the change of material quality caused by long-time heating.</sup>

Performance:
 

1. The paddle dryer has low energy consumption: due to indirect heating, it does not carry a large amount of air and takes away heat. The outer wall of the dryer is provided with an insulating layer. For slurry materials, it only needs a small amount of heat to evaporate 1kg of water.

2. The cost of the paddle dryer system is low: there is a huge heat transfer surface in the unit effective volume, which shortens the processing time. Due to the smaller size of the equipment, the building area and building space are reduced.

3. Wide range of materials to be treated: different thermal media can be used to treat both heat-sensitive materials and materials requiring high-temperature treatment. Common media include steam, heat transfer oil, hot water, cooling water, etc. It can be operated continuously or intermittently and can be used in many fields.

4. Little environmental pollution: no use of portable air and little entrainment of powder materials. The evaporation capacity of material solvent is very small, which is convenient for treatment. Closed-circuit circulation can be adopted for contaminated materials or working conditions requiring solvent recovery.

5. Low operating cost: the equipment operates normally, only 1 hour/day · person. Low-speed mixing and reasonable structure. The wear is small and the maintenance cost is very low.

6. Due to the small temperature gradient in the mixing section, the axial expansion of the material and the humidity of the mixing blade ensure the stability of the material.

_{Material and liquid conditions}
 

Process method	Solid content	Feed capacity	Output capacity
Wastewater:  40 m3/h
Screw filter	20%	4000kg/h	830kg/h
Hollow Paddle Dryer (steam at 0.5Mpa)	85%	830kg/h	195kg/h

 

<sub>Process conditions

Drying method: heating

Hot air contact method: Heat conduction.

Heat source and heating method: steam or thermal oil heating

Dust removal method: Two-stage cyclone 

Product collection method: conveyor screw</sub>

The dryer's capacity range from 40 to 150 tons per day.

After-sales Service Provided: Engineers available to service machinery overseas

Heating source: Steam

Installation: Engineer Oversea Installation

Drying process: Continuous Automatic Drying

Heating method: Indirect Heating

Heat exchange area:6 m2 - 200m2

Processing capacity:125-450kg/h ( 80%~40% )

Installation and Commissioning and Training:

1. Buyers arrange installation and debugging by themselves under a manual book from the supplier.

2. If the buyer requires engineers from the seller's party, the buyer should arrange the following items:

(A)Within 30 days after the machines are delivered to the buyer's factory, the buyer shall inform the seller to arrange engineers to the buyer's factory for installation, commissioning, test, and training machine operators.

(B)The buyer should provide the engineers(1-2 person) the boarding and lodging, transportation during the engineer's stay in the buyer's country, and round trip air ticket and visa fee for the engineers. Besides, the buyer should pay the money as salary for one engineer per day.
Project




Company Information
ZHENXING was founded in 1993. We are specialized in the development and manufacturing of dryers, mixers, granulators, grinders, and etc. Our company has cooperated with a number of research institutions since 2007 and we have established the largest sludge drying equipment testing center in China. All Dryer is widely applied in all kinds of industrial fields.