Scraping plate drum dryer

A drum scraper drying and scraper technology, applied in non-progressive dryers, dryers, drying solid materials, etc., can solve problems such as uneven product quality and difficult adhesion process, and achieve uniform distribution and improved product quality Effect

Inactive Publication Date: 2016-05-18
CATHAY R&D CENT CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the existing drum scraper dryer, the material is placed in the material tray for too long, which is easy to cause stratification. As time goes by, the water content of the upper material increases sharply, while the solid-liquid ratio of the lower material becomes higher and higher, resulting in Adhesion process is increasingly difficult and final product quality varies

Method used

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  • Scraping plate drum dryer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Drum scraper dryers, such as figure 1 and 2 As shown, it includes: drum shell 1 (length-to-diameter ratio 1.5), rotating shaft 2, power device 8 (including motor, reducer and gear), material liquid pan 3, scraper 14 and material slag collection device 7;

[0031] The drum body 1 is coaxial with the rotating shaft 2, and the rotating shaft 2 is connected to the power device 8; the liquid tray 3 is located below the drum body 1; the two ends of the drum body 1 are provided with mechanical seal heads;

[0032] Drum body 1: including an inner cylinder 10 and an outer cylinder 11, the inner cylinder 10 and the outer cylinder 11 are coaxial;

[0033] Feed liquid stirring device: the feed liquid stirring device includes a stirrer 5 and a stirring gear 4; the stirrer 5 is located above the feed liquid plate 3 and is parallel to the bottom of the feed liquid plate 3, and is used for stirring the feed liquid; the stirring gear 4 and the The rotating shaft 2 is connected; the st...

Embodiment 2

[0036] Drum scraper dryers, such as figure 2 , 3 As shown, it includes: drum body 1 (length-to-diameter ratio 1.8), rotating shaft 2, power device 8 (including motor, reducer and gear), material liquid plate 3, scraper 14 and material slag collection device 7;

[0037] The drum body 1 is coaxial with the rotating shaft 2, and the rotating shaft 2 is connected to the power device 8; the liquid tray 3 is located below the drum body 1; the two ends of the drum body 1 are provided with mechanical seal heads;

[0038]Drum body 1: includes an inner cylinder 10 and an outer cylinder 11, the inner cylinder 10 and the outer cylinder 11 are coaxial; between the inner cylinder 10 and the outer cylinder 11, a spiral deflector 12 is arranged to form a spiral oil guide groove;

[0039] Rotating shaft 2: The rotating shaft 2 is a double-layer hollow shaft; the inside is provided with an oil inlet channel 21 and an oil outlet channel 22 coaxially arranged with the drum body 1; the internal ...

Embodiment 3

[0043] Drum scraper dryers, such as figure 2 , 4 , 5, including: vacuum device 9, drum body 1 (length-to-diameter ratio 1.8), rotating shaft 2, power device 8 (including motor, reducer and gear), material liquid plate 3, scraper 14 and material slag collection device 7;

[0044] The drum shell 1, the feed liquid tray 3 and the scraper 14 are all located in the vacuum device 9, and the gas outlet 91 of the vacuum device 9 passes through a condenser and is connected to a gas collection tank;

[0045] The drum body 1 is coaxial with the rotating shaft 2, and the rotating shaft 2 is connected to the power device 8; the liquid tray 3 is located below the drum body 1; the two ends of the drum body 1 are provided with mechanical seal heads;

[0046] Drum body 1: including an inner cylinder 10 and an outer cylinder 11, the inner cylinder 10 and the outer cylinder 11 are coaxial;

[0047] Slag collection device 7: The slag collection device 7 includes a slag inlet 70, a slag channe...

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PUM

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Abstract

The invention discloses a scraping plate drum dryer. The scraping plate drum dryer comprises a drum cylinder, a rotary shaft, a power device, a feed liquid tray, a feed liquid stirring device, a scraper and a slag collection device, wherein the drum cylinder and the rotary shaft are coaxial. The rotary shaft is connected with the power device. The drum cylinder comprises an inner cylinder body and an outer cylinder body, wherein the inner cylinder body and the outer cylinder body are coaxial. The feed liquid tray is located below the drum cylinder. The feed liquid stirring device comprises a stirrer located above the feed liquid tray. The scraping plate drum dryer can be used for material drying and solid-liquid separation and is particularly suitable for extracting and collecting volatile substances from a system containing dissolvable or indissolvable inorganic salt. In the whole operating process, the state of materials is stable, layering or the dramatic change of the solid-to-liquid ratio is avoided, the heating temperature is uniform, the drying effect is excellent, and the high heat and mass transfer efficiency can be kept all the time; in addition, continuous work can be achieved, the energy loss is small, the drying time is short, and the scraping plate drum dryer is suitable for large-scale industrial production.

Description

technical field [0001] The invention relates to a drum scraper dryer. Background technique [0002] Drum scraper dryer is a kind of equipment that uses internal heat conduction and rotation to continuously dry the liquid material or slurry attached to the outer wall of the cylinder. When the drum scraper dryer is working, the rotating drum passes through the lower trough, adhering a thick material film, and the heat is transported to the inner wall of the drum through the pipeline, and then transferred to the outer wall of the drum, and further transferred to the feed film, so that the heat in the material film The water is evaporated and dehumidified, and the material is dried. The dried material is scooped off the drum by the scraper placed on the surface of the drum, falls into the discharge port, and is concentrated and packaged. The drum scraper dryer has uniform material distribution, thin material layer, large temperature gradient and high heat utilization rate. It ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F26B11/04F26B23/10F26B25/04
CPCF26B11/04F26B23/10F26B25/04
Inventor 戴端芳秦兵兵杨晨刘修才
Owner CATHAY R&D CENT CO LTD
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