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Double-cone rotary vacuum drying and solvent recovering system

A technology of vacuum drying and recycling system, applied in the direction of drying solid materials, drying chambers/containers, non-progressive dryers, etc., can solve the problem of drying only suitable for granular materials, eliminate hidden dangers of explosion, improve productivity, and improve solvent The effect of recovery

Inactive Publication Date: 2011-01-19
CHANGZHOU LEMAR DRYING ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chinese Patent No. 200520076519.4 utility model patent specification discloses a closed-circuit circulation fluidized drying device, including a dryer, a dust collector, a condenser, a fan, and a heating filter. The above-mentioned utility model is only suitable for drying granular materials.
The above-mentioned utility model is only suitable for the drying of liquid and suspension objects with heat-sensitive solvents.

Method used

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  • Double-cone rotary vacuum drying and solvent recovering system
  • Double-cone rotary vacuum drying and solvent recovering system
  • Double-cone rotary vacuum drying and solvent recovering system

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Embodiment 1）

[0021] See figure 1 , This double-cone rotary vacuum drying and solvent recovery system includes a double-cone vacuum dryer 1, a bag filter 2, a tubular condenser 3, a coil condenser 4, a first gas-liquid separator 5, a vacuum pump 6, The second gas-liquid separator 5 , the hot water circulation pump 8 , and the hot water tank 9 .

[0022] See Figures 1 to 4 , the cylinder 1-1 of the double-cone vacuum dryer 1 is an interlayer with inner and outer layers, and the cylinder 1-1 is provided with a feed port 1-1-1 and a discharge port 1-1-2 And the shaft seat holes on both sides, the shaft seat 1-2 is fixed in the shaft seat holes on both sides, the main shaft of the double-cone vacuum dryer is composed of two half shafts, of which half shafts are hollow active half shafts 1-5, and the other half The shaft is a hollow driven half shaft 1-9, the driving half shaft 1-5 and the driven half shaft 1-9 are respectively fixed on the shaft seats 1-2 on both sides, and the middle par...

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Abstract

A double-cone rotary vacuum drying and solvent recovering system comprises a double-cone vacuum dryer, a hot water circulating pump, a hot water tank, condensers, a vacuum pump, a bag filter and a first gas-liquid separator, wherein the condensers include a shell and tube condenser and a coil condenser; a filter element of the double-cone vacuum dryer is cleaned by the nitrogen provided by a nitrogen reverse blow valve; the filter bag of the bag filter is cleaned by the nitrogen provided by a No.2 nitrogen reverse blow valve; and a check valve is arranged on a No.5 pipeline connecting the first gas-liquid separator and the vacuum pump. The system effectively prevents too high pressure in the vacuum dryer due to filter element blockage in the drying process, the bag filter can prevent the materials from blocking the valve, cleaning can be carried out without stopping the whole system, and the whole system can not undergo reverse suction and backflow so as to cause the materials to be lost even if sudden power failure happens.

Description

technical field [0001] The invention relates to a double-cone rotary vacuum drying and solvent recovery system. Background technique [0002] As a battery material—lithium iron phosphate is a white powder, insoluble in water, and uses ethanol as a solvent. Therefore, the solvent needs to be recovered during the drying process of lithium iron phosphate, which is environmentally friendly and can reduce costs. Chinese Patent No. 200920271785.0 utility model patent specification discloses a cyanoacetamide wet product drying and solvent recovery device, which has a double-cone vacuum dryer, and the upper end of the double-cone vacuum dryer is cyanoacetamide The inlet of trendy products, the lower end is the outlet of dried cyanoacetamide products. The double-cone vacuum dryer, hot water tank and hot water circulation pump form a circulating drying device. The solvent outlet of the double-cone vacuum dryer is connected to the inlet of the condenser, and the condensation The outle...

Claims

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Application Information

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IPC IPC(8): F26B11/04F26B25/00F26B25/02F26B25/12
Inventor 周友来钱晋逸
Owner CHANGZHOU LEMAR DRYING ENG
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