Sludge scraper conveyor

1、 Working principle

The sludge is scraped off from the feed port through the movement of the scraper chain and pushed along the conveyor line to the discharge port. The scraper on the scraper chain pushes the sludge forward through the movement of the chain, achieving the purpose of conveying. During horizontal conveying, the material is subjected to the pressure of the scraper chain in the direction of movement and the weight of the material itself, generating internal friction between the materials and forming a continuous flow of material that is conveyed. When lifting vertically, the material is subjected to the pressure of the scraper chain in the direction of movement, generating lateral pressure in the horizontal direction to form internal friction force. At the same time, the lower material exerts a pushing force on the upper material, overcoming external friction resistance and the weight of the material itself, so that the material forms a continuous and integrated flow and is lifted.

2、 Structural composition

1. Scraper chain: It is the core component of the sludge scraper conveyor, consisting of a chain and a scraper. The chain drives the scraper to move, achieving the scraping and conveying of sludge.

2. Drive device: usually includes motors, reducers, etc., which convert the rotational power of the motor into linear motion power of the scraper chain, providing power support for equipment operation.

3. Tensioning device: used to adjust the tightness of the scraper chain, protect the chain from maintaining appropriate tension during operation, and prevent the chain from being too tight, which may affect the conveying effect.

4. Tray: As a load-bearing component for sludge, it provides support and transportation channels for sludge, and is generally made of wear-resistant (mainly based on actual reports) and corrosion-resistant (mainly based on actual reports) materials.

5. Chassis: It plays a role in sealing and protecting, preventing sludge leakage and flying, while also providing a frame for installing and supporting internal components.

3、 Characteristics

1. Strong adaptability: It can adapt to the transportation of sludge with different concentrations, viscosities, and solid contents, and can transport both thin and thick sludge.

2. Energy saving: Adopting the scraper conveying method, the conveying efficiency is good, the energy consumption is low, and a large amount of sludge conveying tasks can be completed in a short time, reducing energy consumption.

3. Simple structure: composed of main components such as scraper chain, driving device, tensioning device, etc., the structure is relatively simple, easy to maintain and repair, reducing the probability of equipment failure and lowering maintenance costs.

4. Excellent environmental protection: adopting a sealed design to reduce the volatilization and leakage of sludge, ensuring the cleanliness and safety of the environment, and avoiding pollution of the surrounding environment by sludge.

5. Good conveying capacity: The conveying capacity is generally between 5m ³/h-500m ³/h, which can meet the needs of sewage treatment plants or sludge treatment projects of different scales.

6. Flexible conveying distance and angle: The conveying distance is generally between 10m-70m, and the conveying angle can vary between 0-90 °, which can be flexibly arranged according to the actual site and process requirements.

4、 Type

1. According to the scraper chain form: it can be divided into four forms: medium single, medium double, edge double, and quasi edge double chain.

2. According to the conveying capacity and motor power, it can be divided into light-duty (single motor P<); 75kw）、 Medium (single motor 75 ≤ p ≤ 160kw), heavy-duty (single motor 200 ≤ p ≤ 400kw), and ultra heavy-duty (single motor p>; 400KW）。

3. According to the application location: it can be divided into serpentine shaped scraper conveyor, closed scraper conveyor, and open scraper conveyor.

4. According to the unloading form: it can be divided into end unloading and side unloading.

5. According to the structure of the middle groove, it can be divided into open bottom and closed bottom types.

6. According to the type of driving motor, it can be divided into single speed motor driving type and dual speed motor driving type.

5、 Application Industry

1. Sewage treatment plant: used to transport the treated sludge from the sedimentation tank to dewatering equipment or storage facilities, improve treatment efficiency, and is an excellent equipment in the sewage treatment process.

2. Industrial wastewater treatment: In the process of industrial wastewater treatment, it is used to transport the treated sludge, confirm the smooth operation of the wastewater treatment system, and help enterprises achieve sewage discharge standards.

3. Environmental protection industry: In addition to being used for sludge transportation, it can also be used for transporting materials such as dust, which can reduce environmental pollution. It is widely used in places such as garbage treatment plants and waste disposal sites.

6、 Key selection points

1. Conveying capacity: Based on the sludge production and conveying requirements, select a scraper conveyor with sufficient conveying capacity to confirm that it can complete the sludge conveying task in a timely manner.

2. Sludge characteristics: Considering the concentration, viscosity, solid content, and other characteristics of sludge, select suitable scraper chains and materials to confirm the stable operation of the equipment and prevent problems such as blockage and wear.

3. Conveying distance and height: Determine the conveying distance and height of sludge according to actual needs, in order to choose the appropriate scraper conveyor model and specifications, and avoid reducing conveying efficiency or equipment failure due to long conveying distance or high height.

4. Safety and maintainability: Choose scraper conveyors with good safety and easy maintenance to confirm the safety of operators and the excellence of equipment, reducing equipment maintenance costs and downtime.