CN205301023U

CN205301023U - Ordinary pressure seals pollution -free digestion device

Info

Publication number: CN205301023U
Application number: CN201520945911.1U
Authority: CN
Inventors: 尤铁学
Original assignee: Northeast Forestry University
Current assignee: Northeast Forestry University
Priority date: 2015-11-20
Filing date: 2015-11-20
Publication date: 2016-06-08
Anticipated expiration: 2025-11-20

Abstract

The utility model provides an ordinary pressure seals pollution -free digestion device. Dangerous and the pollution problem of clearing up with the ordinary pressure opening that it has solved that the pressurization microwave clears up. This digestion device by ground triangular flask, vertical condenser pipe, prevent solution suck -back bottle, toxic gas absorption bottle and perforated plate and constitute. This digestion device can be used for the processing of clearing up of sample, also can be used for the survey of the chlorine that chemical oxygen demand survey in -process high concentration chlorion was produced by the oxidation, also can be arranged in the organic matter of solvent extraction sample, this digestion device also can regard as distiller and extraction apparatus to use except being used for clearing up the sample.

Description

Atmospheric pressure sealed is pollution-free digestion device

Technical field

This utility model relates to sample analysis pretreating device in a kind of experimental teaching, scientific research and environmental monitoring field.

Background technology

In heavy metal step in measuring various environmental samples, sample is cleared up process, the Organic substance strong acid in sample and oxidant are destroyed, change into measuring glitch-free inorganic matter, and heavy metal is discharged from combined state, this is one of the step of most critical.

What the digestion procedure of environmental sample was conventional is Wet, namely coordinate with strong oxidizer with strong acid or highly basic, when heating, by the oxidation operation in sample and dissolve other solid matters, the heavy metal in sample is made to enter in solution in the form of an ion, then the concentration by the heavy metal ion in Instrument measuring solution. At present conventional digestion procedure has two kinds: one is that high-pressure microwave is cleared up instrument and cleared up; Another kind is that normal pressure is unlimited to be cleared up. High-pressure microwave is cleared up instrument and is cleared up and can produce significantly high pressure, has the danger of blast, and buys costing a lot of money of instrument. Normal pressure opens wide to be cleared up, although compares safety, but produces substantial amounts of toxic gas in digestion process, contaminated environment and affect the healthy of experimenter, and clear up that effect is not so good as that high-pressure microwave clears up that instrument clears up effective. So Design and Machining one is both safe and environment-friendly, can guarantee that again that clears up effect clears up instrument, helpful beyond doubt for analyzing personnel.

Utility model content

This utility model provides a kind of pollution-free digestion device of atmospheric pressure sealed. It solve the dangerous of high pressure sealing micro-wave digestion and the pollution problem cleared up with normal pressure opening.

The technical solution adopted in the utility model is: this digestion device is made up of ground triangular flask, vertical condensation pipe, anti-solution suck-back bottle, toxic gas absorption bottle and porous plate. It is characterized in that ground triangular flask is connected above vertical condensation pipe, the side of vertical condensation pipe is connected with anti-solution suck-back bottle above through airway, anti-solution suck-back bottle is connected by airway with toxic gas absorption bottle, the outlet of airway is blocked by porous plate and down into the bottom close to toxic gas absorption bottle, adding a certain amount of toxic gas in toxic gas absorption bottle and absorb liquid, this absorption liquid is by sample solution to be cleared up and surrounding air isolation.

Select glass or polytetrafluoroethylmaterial material, the triangular flask of one ground of processing and fabricating and a condenser west tube supporting with ground triangular flask, the top plastic cap sealed of condenser west tube; An anti-solution suck-back bottle and a toxic gas absorption bottle it is connected above in the side of condenser west tube, plastic cap sealed is all used in the top of two bottles, anti-solution suck-back bottle conduit is connected with solution absorption bottle, a porous plate is fixed in the outlet of conduit, porous plate position at the bottom of the bottle of solution absorption bottle; Toxic gas absorption bottle injects and can absorb in digestion process the solution evaporating gas, it is prevented that toxic gas diffuses in room air; What this digestion device may be used for sample clears up process, it is also possible to for the mensuration of the amount of chlorine of the COD determination process oxidized generation of middle and high concentration chloride ion, it is also possible to for the Organic substance in solvent extraction sample; This digestion device is except being used for clearing up sample, it is also possible to use as distillator and extractor.

The beneficial effects of the utility model mainly include four aspects: one is the danger not having blast in digestion process;Two is clear up in the process of sample not produce harmful gas; Three is that to clear up effect better; Four is that the ventilation condition to laboratory has no special requirements, and operates in common laboratory table.

Accompanying drawing explanation

Below in conjunction with Figure of description and technical scheme, the utility model is described in further detail.

Fig. 1 is unitary construction profile of the present utility model.

In figure: 1. vertical condensation pipe, 2. triangular flask, 3. adjustable electric cooking stove, 4. plastic whorl lid, 5. anti-solution suck-back bottle, 6. plastic whorl lid, 7. plastic whorl lid, 8. porous plate, 9. absorb liquid, 10. toxic gas absorption bottle.

Detailed description of the invention

Sample and strong acid and strong oxidizer is added in triangular flask (2), connect vertical condensation pipe (1) and triangular flask (2), add in toxic gas absorption bottle (10) again and absorb liquid, plastic whorl lid (4), (6) and (7) is screwed, tap water or cooling water is passed in vertical condensation pipe (1), open electric stove switch, heating triangular flask (2), start to clear up, until reaching predetermined digestion time, terminate experiment. After experiment terminates, open plastic whorl lid (4), (6) and (7), take out the absorption liquid in toxic gas absorption bottle (10), migrate out the digestion solution in triangular flask (2), clean digestion device. If clearing up soil or solid sample, digestion device needs to use polytetrafluoroethylmaterial material processing and fabricating, and can not make of glass material, in this case, coil in vertical condensation pipe (1) can remove, triangular flask (2) is placed in boiling water or other liquid that can heat, the thawing in order to avoid triangular flask is heated.

Claims

1. the pollution-free digestion device of atmospheric pressure sealed, it is by ground triangular flask, vertical condensation pipe, anti-solution suck-back bottle, toxic gas absorption bottle and porous plate composition, it is characterized in that ground triangular flask is connected above vertical condensation pipe, the side of vertical condensation pipe is connected with anti-solution suck-back bottle above through airway, anti-solution suck-back bottle is connected by airway with toxic gas absorption bottle, the outlet of airway is blocked by porous plate and down into the bottom close to toxic gas absorption bottle, toxic gas absorption bottle adds a certain amount of toxic gas and absorbs liquid, this absorption liquid is by sample solution to be cleared up and surrounding air isolation.