The screw squeeze dryer is a piece of equipment widely used in chemical industry, food, medicine, environmental protection and other fields. It is used to quickly squeeze out liquid or high-humidity solid materials for subsequent processing or storage. Its structural design is directly related to its squeezing efficiency and service life. This article will introduce the structure of the screw squeezing machine in detail.

1. Main components

1.1. Spiral fuselage

The main part of the screw squeeze dryer is the screw body, which is usually composed of a long screw shaft. The spiral shaft is usually made of stainless steel or carbon steel, and its outer surface is often equipped with spiral threads. It is used to transport materials from the inlet to the outlet. The length and diameter of the spiral body can be designed according to the needs of the material to be processed. Generally speaking, the longer the spiral body, the higher the squeezing efficiency.

1.2. Inlet and outlet

Screw squeeze dryers usually have an inlet and an outlet. The feed port is used to transport materials with higher humidity into the screw body, while the discharge port is used to discharge the squeezed dry material. The design of these two ports usually takes into account the smooth flow of materials and the ease of operation of the equipment.

1.3. Motors and transmissions

In order to rotate the screw shaft, the screw squeeze dryer is usually equipped with an electric motor and a transmission device. The electric motor transmits power to the screw shaft through the transmission device, thereby driving the rotation of the screw shaft. The transmission device usually includes components such as reducers and couplings to ensure stable rotation of the screw shaft.

1.4. Squeeze dry the cylinder

The squeeze barrel of the screw squeeze dryer is an important part and is usually made of stainless steel or wear-resistant materials. The internal surface of the squeezing cylinder is often smooth to reduce material adhesion and improve squeezing efficiency. The interior of the squeezing cylinder is usually equipped with some accessories, such as a spray device, which is used to add auxiliary agents during the squeezing process.

1.5. Support structure

In order to support the entire screw squeeze dryer and reduce the weight load of the fuselage, a support structure is usually designed. These support structures are usually made of steel to ensure that the screw squeeze dryer is stable and safe during operation.

2. Working principle

The working principle of the screw squeeze dryer is relatively simple and is mainly divided into the following steps:

2.1. Material feeding

Materials with higher humidity enter the spiral body through the feed port. The rotation of the screw shaft transports the material to the discharge port of the squeezing cylinder.

2.2. Squeezing process

Inside the squeezing cylinder, the material is squeezed and sheared by the screw shaft, causing the liquid in it to separate. These liquids are usually discharged through the drain port at the bottom of the barrel, while the drier solid materials continue to move forward.

2.3. Discharging

Finally, the dried material is discharged from the discharge port and can be processed or stored later.

2.4. Cleaning and maintenance

In order to ensure the normal operation of the screw squeeze dryer, regular cleaning and maintenance work is required to prevent material residues and equipment wear.

3. Application fields

Screw squeeze dryers are widely used in many industries. Here are some of the main areas:

3.1. Chemical industry

In the chemical industry, screw squeeze dryers are often used to squeeze out solvents from chemical reaction products for further processing or recycling.

3.2. Food processing

In food processing, screw squeeze dryers are often used to remove excess moisture from food, such as squeezing out the moisture from vegetables, fruits or dairy products, to extend their shelf life.

3.3. Pharmaceutical manufacturing

In the pharmaceutical field, screw squeeze dryers are often used in the drying process of preparing drug granules or solid drugs.

3.4. Environmental protection and waste disposal

In the field of environmental protection, screw squeeze dryers can be used to process sludge, solid waste or solid residues generated from sewage treatment to reduce volume and disposal costs.

3.5. Metallurgical industry

In the metallurgical industry, screw squeeze dryers are often used to process metal powders, ore slurries or waste residues to reduce humidity and facilitate subsequent processing.

In short, as a multi-functional equipment, the screw squeeze dryer is widely used in various industrial fields. Its structural design and working principle enable it to efficiently squeeze out various types of materials, improve production efficiency, and reduce energy consumption. It is one of the indispensable equipment in modern industrial production.

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