Vacuum suction filtration device

Abstract

The invention discloses a vacuum suction filtration device, and belongs to the technical field of suction filtration devices. The vacuum suction filtration device comprises a filtering system, a receiving system, a vacuum pump and an accessory system, wherein the filtering system is composed of a cylindrical funnel, a filtering medium and a sand core filter; the filtering medium is located between the cylindrical funnel and the sand core filter; the receiving system comprises a suction flask, and a collecting pipe; a suction filtration nozzle and an air suction nozzle are also arranged on the upper part of a flask body of the suction flask; the air suction nozzle is externally connected with a latex tube; a liquid outlet with a glass cock is formed in the lower part of the suction flask; the filtering system is arranged on the suction flask; an outer circumference ground of a suction flask opening is connected with an outer circumference ground opening of a sand core filter opening; and the accessory device is composed of a connecting pipe, a water sealing clip, a retaining clip and a dustproof cap. The vacuum suction filtration device disclosed by the invention is ingenious in design, simple in structure, convenient to use, high in applicability, and suitable for large-scale popularization and application; the matched suction filtration device can be assembled according to the quantity and the sizes of to-be-filtered solid-liquid mixtures; and the suction filtration efficiency and speed are improved.

Description

technical field [0001] The invention belongs to the technical field of suction filtration devices, and in particular relates to a vacuum suction filtration device capable of assembling supporting devices according to the quantity and volume of the solid-liquid mixture to be filtered. Background technique [0002] Filtration refers to the process of purifying fluid through a specific device, which is a necessary step for determining the dissolved state of pollutants. Suction filtration is a kind of filtration. Under the action of driving force or other external forces, the liquid in the solid-liquid suspension passes through the filter medium, while solid particles and other substances are retained by the filter medium. At present, there are two main types of commonly used suction filtration devices: one is a vacuum pressure suction filtration device, and the other is a manual pressure filtration device. Since suction filtration is powered by a suction filter machine, the ef...

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Problems solved by technology

[0004] In order to solve the problem that the existing suction filtration device has simple functions, low utilization rate of the suction filtration bottle, and only one sample can be filtered at a time, the present invention proposes a new type of vacuum filtration device, which can filter the solid-liquid mixture according to the Quantity and volume, assembled into a corresponding supporting vacuum filtration device, achieved through the following technical solutions:

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