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Horizontal Vacuum Drying System (Plough Type)
The horizontal plough type vacuum drying system integrates automatic batching, mixing, drying, and online cleaning functions. Relying on advanced HMI intelligent control technology, it achieves full automation of the production process and is widely used in industries such as food, chemicals, building materials, and lithium batteries, and so on. Powder raw materials can be fed and transported in a dust-free manner through a small bag feeding station, while liquid raw materials are pressurized and transported to the mixer via a liquid storage tank. Equipped with Mettler Toledo weighing sensors, the accuracy reaches 3‰. The core equipment, the horizontal plough type vacuum dryer, integrates mixing, reaction, and drying functions. Its plough type agitator is precision cast and machined by a CNC machining center, with extremely small gaps between it and the barrel wall. Equipped with side-entry high-speed flying knives, it can quickly disperse and de-agglomerate lumps and clumps of materials, preventing wet powder from clumping and further enhancing the mixing effect. The equipment is equipped with a heating jacket, supporting heating with various heat media such as hot water, hot oil, or steam. The entire machine is designed as a sealed unit and can be connected to a vacuum system for vacuuming and liquid removal. Dust removal, condensation recovery, and solid-gas separation devices are installed at the front end of the vacuum unit to minimize raw material loss. The entire system supports PLC intelligent control (such as temperature, vacuum, speed, etc.) and has a signal interface for remote control.
Product Overview
Powder and liquid raw materials are precisely conveyed into the horizontal plough type vacuum dryer via an automatic batching unit, where they are heated and dried under the action of a double-layer jacket. The three-dimensionally designed plough type agitator, when rotating at high speed, causes strong axial and radial motion of the materials, forming powerful turbulence in the mixing chamber, significantly improving the mixing uniformity and efficiency of the powder; working in conjunction with the side-entry high-speed flying blades, it quickly disperses and de-agglomerates the materials, preventing the wet powder from clumping together. During the mixing process, heat diffuses between the materials, and with the help of a vacuum condensation system, the ignition point of the liquid and the liquid content in the air are reduced, effectively shortening the drying time. The dryer is equipped with a 360° rotating high-pressure cleaning spray head, which, together with CIP, enables one-button cleaning, providing comprehensive coverage without residue or dead corners.
Product Advantages
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Intelligent Integrated Design
The system relies on the PLC+HMI intelligent control platform to automate the entire process of metering, feeding and conveying of powder and liquid raw materials. After being fed into the small bag feeding station in a dust-free manner, the powder is conveyed to the mixing dryer through a closed pipeline under vacuum to avoid dust leakage and raw material loss; the liquid raw materials are pressurized and conveyed by the storage tank equipped with Mettler Toledo high-precision weighing sensors, with a metering accuracy of up to 3‰, ensuring accurate and reliable feeding ratio.
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Side-entry flying knife structure
The mixer is equipped with side-entry flying knives, which can quickly break up lumpy and clumpy materials, prevent materials from sticking together and ensure uniform heating and thorough drying. The flying knives work together with the plough type agitator to form a strong shearing effect, which greatly improves the flowability and heat transfer efficiency of the materials, promotes uniform mixing of materials in a short time, and significantly shortens the drying time.
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Multiple forms of temperature control
Heating is generally carried out using circulating hot oil/hot water/steam heating, and electric heating rods can be directly installed in the jacket for direct heating. Using the circulating heating method, one heat source system can be configured with multiple drying mixers.
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Vacuum Assisted Drying System
To improve the drying performance of the mixer, a vacuum is typically drawn inside the mixer while heating and drying, reducing the evaporation point of the liquid and the liquid content in the air. This can shorten the overall drying time by approximately 40%, typically using a -0.099 MPa vacuum pump. To reduce dust extraction during vacuuming, a bag filter (with backflushing device) is added to the top of the mixer to minimize powder material loss. Simultaneously, a condensation recovery filter can be installed to allow for liquid material recycling.
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Extensive application experience and highly targeted non-standard design capabilities
Based on industry, raw material and finished product characteristics, pressure and temperature requirements, solid-liquid ratio, and supporting processes, SIEHE Group develops highly targeted solutions in areas such as drive devices, operability, and sealing.
For example: a high-sealing vacuum tank developed for the battery cathode material industry; a 250℃ high-temperature resistant product manufactured for a specific chemical; and a special flying knife crushing component provided for the environmental engineering industry.
Technical Parameter
| Bulk density | ≤3g/cm³ |
| Drying Temperature | 50-250℃ |
| Capacity | 30-30,000L |
| Application | Suitable for drying and mixing materials in industries such as starch products, lithium battery materials, ceramic materials, fertilizers, and sludge treatment. (For more application areas, please click "Free Consultation") |
| Applicable materials | The materials have a specific gravity of less than 3 g/cm³ and a certain degree of fluidity, including various powders and slurries such as modified starch, lithium cobalt oxide cathode materials, and silica, totaling over a thousand materials. |
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