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Dry type vacuum unit for solvent recycling

A vacuum unit and solvent technology, applied in the direction of rotary piston machinery, mechanical equipment, machine/engine, etc., can solve the problems of high power consumption, non-compliance with energy saving requirements, low efficiency, etc., to achieve compact structure, convenient installation, and improved economical effect of benefit

Pending Publication Date: 2018-09-28
山东博科真空科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the shortcomings of low efficiency, high power consumption and failure to meet the energy saving requirements in the prior art, and propose a solvent recovery dry vacuum unit

Method used

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  • Dry type vacuum unit for solvent recycling
  • Dry type vacuum unit for solvent recycling
  • Dry type vacuum unit for solvent recycling

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0020] Embodiment: The pumped gas containing the solvent is sucked by the screw vacuum pump 4 and first enters the inside of the filter 8 with condensation recovery function from the air inlet 9, so as to cool down the pumped gas and filter dust, and the cooled and filtered The gas to be pumped is sucked, compressed, and transported into the wound tube condenser 5 through the screw vacuum pump 4, and the condensed and liquefied solvent flows into the recovery tank 2 for storage, and the non-condensable gas is discharged through the exhaust port 10 on the recovery tank 2 system, the recovered solvent is recovered through the second solvent discharge port 19, thereby effectively reducing solvent pollution, reducing solvent consumption, and improving the economic benefits of pharmaceutical companies.

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Abstract

The invention relates to the technical field of solvents, in particular to a dry type vacuum unit for solvent recycling. The dry type vacuum unit comprises a rack, the bottom of the rack is horizontally provided with a recycling tank, the top of the rack is provided with a screw vacuum pump, the two ends of the screw vacuum pump are provided with a vacuum pump cooling water inlet and a vacuum pumpcooling water outlet correspondingly, and the end, close to the vacuum pump cooling water inlet, of the screw vacuum pump is connected with an electromotor. An air suction opening of the screw vacuumpump is connected with a filter through a pipe, the filter is vertically and fixedly installed at one end of the rack, and the filter communicates with the interior of the screw vacuum pump. The pipebetween the filter and the screw vacuum pump is provided with an inlet check valve. The dry type vacuum unit is of integrated design and is compact in structure, convenient to install and capable ofrealizing condensation, filtering, condensed liquid online recycling and discharging of sucked air; and meanwhile, contamination of a solvent is effectively reduced, consumption of the solvent is lowered, and the economic benefits of pharmaceutical enterprises are increased.

Description

technical field [0001] The invention relates to the technical field of solvents, in particular to a solvent recovery dry vacuum unit. Background technique [0002] Solvent refers to a liquid that can dissolve gases, solids, and liquids into a homogeneous mixture. It is widely used in the pharmaceutical process, such as methanol, ethanol, isopropanol, acetone, ethyl ester, butyl ester, dichloromethane, acetonitrile, etc. In the production process of pharmaceuticals, the solvent itself does not participate in the chemical reaction, and the solvent acts as a carrier and a medium. The extraction, refining, drying and other processes of medicines are all carried out in a vacuum state. The solvent is highly volatile under vacuum conditions. Most of the solvent is condensed and recovered in the condenser set before entering the vacuum pump, but there is still a large amount of solvent. Part of the solvent is pumped into the vacuum pump. The traditional vacuum equipment uses water ...

Claims

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Application Information

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IPC IPC(8): F04C18/16F04C29/12F04C29/04F04C29/00
CPCF04C18/16F04C29/00F04C29/0092F04C29/04F04C29/12
Inventor 孙猛燕妍张长杰张金涛
Owner 山东博科真空科技有限公司
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