Dense Phase Conveying Tank

Dense phase conveying tank, also known as dense phase pump, conveying bin, etc., is often used in dense phase pneumatic conveying systems for the centralized conveying of bulk materials. It adopts a single conveying tank, uses gravity for feeding, and conveys materials through a single pipe after feeding.The dense phase conveying tank is composed of a pressure vessel (conveying tank), an electronic control system, and a conveying pipeline. It is widely used in industries such as food, chemical engineering, rubber and plastic, and new materials.The dense phase conveying tank can convey high-temperature, humid, powder or bulk materials in a mixed or batch manner. It is suitable for pneumatic conveying systems of high-temperature, abrasive or humid materials.

The dense phase conveying tank is widely used in industrial fields such as metallurgy, electric power, building materials, and chemical engineering.The dense phase conveying tank conveys materials at a relatively low speed, and the materials are conveyed in a plug-like form in the pipeline without the need for material-gas mixing.It greatly reduces pipeline wear and energy consumption costs.The dense phase conveying tank has a variety of specifications and manufacturing materials to choose from, which can meet the conveying needs of almost all bulk materials.The quarter-circle rotation of the valve core inside the dome valve, its core component, is the only movement of the system. Its performance in continuously conveying abrasive materials and reliably maintaining pressure difference is better than that of all other valves.Therefore, this device has extremely low operating energy consumption and maintenance costs, and high reliability.

Working Principle:

The dense phase conveying tank adopts an advanced dome valve for discharging. After the conveying tank is 100% filled, the dome valve ball passes through the material to close and seal;Compressed air enters the dense phase pump through the control valve, and the materials enter the conveying pipeline at a low speed in accordance with specific system requirements.The conveying process requires little compressed air, achieving a high material-air ratio, which ensures low energy consumption and very little system wear.

Product Applications:

• Spodumene/Coke/Fly Ash: Spodumene roasted material, acid clinker, dust and fly ash, screened materials, charcoal ash, dust collection ash.
• Food Raw Materials: Unprocessed and roasted peanuts, apricot kernels, granular baking powder, loose tea leaves, corn, sugar, raisins, fructose, salt.
• Foundry Sand: Resin-coated sand, wet sand, mixed new sand and recycled sand, pre-mixed sand.
• Chemical/Plastic Powder/Minerals: Titanium dioxide, polyvinyl chloride (PVC), CPVC resin lumps and fragments, phenolic resin powder, lime blocks, limestone, lithium carbonate, lithium hydroxide, lithium chloride, etc.
• Alternative Fuels: Sludge from wastewater treatment, waste paper and pulp, incineration ash.

Working Process:

• Feeding Stage: The feeding valve is opened, and materials fall freely into the conveyor. When the rising materials in the conveyor touch the level gauge, the level gauge sends a material-full signal, and the feeding valve closes automatically to complete the feeding process.
• Fluidization and Pressurization Stage: The air inlet valve opens automatically, and compressed air enters the bottom of the conveyor. After diffusion, it passes through the fluidized bed. While the materials are fully fluidized, the air pressure in the conveyor rises.
• Conveying Stage: When the pressure in the conveyor reaches a certain value, the pressure sensor sends a signal, and the discharge valve opens automatically. The fluidization of materials on the fluidized bed is enhanced, and conveying starts. The materials in the conveyor gradually decrease. During this process, the materials on the fluidized bed are always in a state of being fluidized while being conveyed.
• Purging Stage: When the material conveying in the conveyor is completed and the pressure drops to the pipeline resistance, the indicator light sends a signal. Ventilation continues for a certain period of time, and compressed air cleans the pipeline. Then the air inlet valve closes. After a certain interval, the discharge valve is closed and the feeding valve is opened to complete a conveying cycle.