Solid-liquid separation centrifuge tube for fly ash modification

Abstract

The invention discloses a solid-liquid separation centrifuge tube for fly ash modification. The solid-liquid separation centrifugal tube comprises a centrifugal tube body, wherein the centrifugal tube body is formed by sequentially connecting a sample adding tube, a filtering tube and a collecting tube in a sealed mode from top to bottom, the bottom of the sample adding tube is connected with an opening of the filtering tube in a bearing mode, the bottom of the filtering tube is connected with an opening of the collecting tube in a bearing mode, and a solid-liquid phase separation part is arranged in the filtering tube. By adopting the above technical scheme, firstly, solid-liquid separation time can be shortened, the operation steps of centrifugal filtration are reduced, and working efficiency is improved; secondly, the loss of samples in the operation process can be reduced, and the probability of manual errors is reduced; and thirdly, modular design can be adopted, all parts can be used separately, socket and spigot joint connection is adopted, so the solid-liquid separation centrifuge tube can be applied to daily experiments in a laboratory and is easy to operate and convenient to use as the solid-liquid separation centrifuge tube is used in cooperation with a centrifugal machine.

Description

technical field [0001] The invention belongs to the technical field of liquid separation, more specifically, the invention relates to a centrifuge tube for solid-liquid separation used for fly ash modification. Background technique [0002] Centrifuge tubes are one of the commonly used items in the laboratory. They have many uses, such as diluting solutions, mixing samples, centrifugal layering, etc. Especially in many experimental operations, they are used for a large proportion of centrifugal layering. The use of the tube with a centrifuge can quickly separate the solid and liquid of the solution, especially in the mixed solution of particles with small particle sizes, which often needs to be centrifuged with a centrifuge for solid-liquid separation, such as for a mixture containing heavy metal solutions. During solid-liquid separation, it often takes a relatively long time and a large speed for rapid centrifugation; at present, in the corresponding experiments in the labo...

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Problems solved by technology

[0002] Centrifuge tubes are one of the commonly used items in the laboratory. They have many uses, such as diluting solutions, mixing samples, centrifugal layering, etc. Especially in many experimental operations, they are used for a large proportion of centrifugal layering. The use of the tube with a centrifuge can quickly separate the solid and liquid of the solution, especially in the mixed solution of particles with small particle sizes, which often needs to be centrifuged with a centrifuge for solid-liquid separation, such as for a mixture containing heavy metal solutions. During solid-liquid separation, it often takes a relatively long time and a large speed for rapid centrifugation; at present, in the corresponding experiments in the laboratory, when performing solid-liquid separation, it is necessary to first use a centrifuge for centrifugation, then remove the supernatant, and then Filter the lower part of the mixture with a funnel and filter paper. During this period, multi-step operations will be performed and will consume a certain amount of time, especially when a large amount of samples needs to be processed, which will waste a certain amount of time and reduce work efficiency. In the process of solid-liquid separation, the sample may be incompletely filtered due to operator error, which will affect the experimental data.

[0003] Chinese invention patent (201520243842.X) discloses a liquid separation centrifuge tube, which is composed of a tube body, a tube cover and a flexible connected tube bottom. A drain pipe is arranged at the lower end of the tube body. In the bottom of the tube, it is sealed by the bottom of the tube. The tube cover is equipped with a cylinder connected to the pipette, and can separate the bottom of the tube from the tube body. However, it has no filter and can only be centrifuged, and it is mainly used for Cell separation and extraction are not suitable for the modification of fly ash; Chinese invention patent (201110031294.0) discloses a disposable filter-type semen separation centrifuge tube, including a sleeve, a filter tube is installed inside the sleeve, and a filter tube is installed on the outer wall of the upper part of the sleeve. Set the thread, the upper part of the filter tube is cylindrical, the lower part is truncated cone, the bottom of the filter tube is connected to the conduit, the diameter of the conduit is smaller than the diameter of the filter tube, the filter tube communicates with the conduit, and a buffer net is installed on the upper end of the filter tube , the outer wall of the buffer net is closely matched with the inner wall of the upper end of the truncated cone, and the upper, middle and lower layers of polyester fiber filter membranes are installed between the buffer net and the support grid, but the filter membranes cannot be replaced, and all liquids are Staying on the upper part will cause the filter membrane to have a large bearing capacity during the initial operation, which may damage the filter membrane again and affect the accuracy of the experiment, and the lower part is not a flexible connection. It may be inconvenient to transfer the liquid after the operation is completed, and It is mainly for the separation and extraction of semen, which is not suitable for fly ash modification operations

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