CN1958113B

CN1958113B - Environmental dynamic dissolution extraction device

Info

Publication number: CN1958113B
Application number: CN2005101155689A
Authority: CN
Inventors: 陈崇智; 蔡金英; 周佳静
Original assignee: Industrial Technology Research Institute ITRI
Current assignee: Industrial Technology Research Institute ITRI
Priority date: 2005-11-04
Filing date: 2005-11-04
Publication date: 2011-10-12
Anticipated expiration: 2025-11-04
Also published as: CN1958113A

Abstract

An environmental dynamic digestion extraction apparatus comprising: a sample tank for fixing the sample contained therein; a feeding box containing a leaching solution; a feeding box pump for providing power to drive the leaching solution in the feeding box to the sample tank; an pH adjusting liquid, comprising an acidic solution and an alkaline solution; a pump for providing power to drive the acidic solution and the alkaline solution contained in the pH adjusting solution to the sample tank; the pH value tester is connected with the sample tank to detect the pH value of the solution in the sample tank; and a plurality of collecting cartridges for collecting the extract eluted from the sample tank.

Description

Environmental dynamic stripping extraction device

Technical field

The invention relates to a kind of extraction equipment, refer to a kind of environmental dynamic stripping extraction device especially with the automation control system operation.

Background technology

General stripping extracting process is to be static schema, and the mode of domestic present detection is total amount stripping extraction and the toxicant stripping program (TCLP) of adopting, but the method can't correctly reflect the objective situation of true environment.On the other hand, this dynamic stripping extracting process and standard are to be formulated by the Bureau of Standards of European Union (CEN) at present, and this experimental technique is still taked the mode operation of manual sampling, but because experimental period is long, must expend suitable manpower, is its major defect.

At present domestic to the sex test stone of environment, adopt the mode of TCLP to carry out the test that stripping extracts, and the environment stripping extraction testing equipment of European Union's employing, at present still in the manual sampling mode, the function of no automation and modularization control.Therefore, design one environmental dynamic stripping extraction device with the charging of automation module controls is the problem of a worth research in fact, and this extraction equipment can effectively be collected required extract to carry out the analysis of dynamic environment via suitable operation.

Summary of the invention

The dynamic stripping extraction of environment is the technology of developmental research tool novelty progressive in recent years, has experimental data and comparatively objectivity, reasonability and can estimate and reach 100 years to advantages such as environmental impacts, utilize dynamic stripping extraction measuring technology, can detect granular or cake mass; Under the environment that requires, the Diffusion Simulation situation of its truly inorganic/organic substance reaches the influence of assessment to environment under the requirement condition.

The object of the present invention is to provide a kind of environmental dynamic stripping extraction device, this device has the sample cell of a fixed sample, produces the phenomenon of error with the area of the leaching liquor that solves material feeding box and this example reaction.

Another object of the present invention is to provide a kind of environmental dynamic stripping extraction device, this device has the automation modular design.

Another purpose of the present invention is to provide a kind of environmental dynamic stripping extraction device, and this device can be assembled and sampling automatically fast according to needed detection mode, to save manpower and cost.

Another purpose of the present invention is to provide a kind of environmental dynamic stripping extraction device, and this device has automatic collection distribution system, and the extract that can collect the stripping of reaction back institute is to solve the phenomenon that produces the collection difficulty because of experimental period is long.

The environmental dynamic stripping extraction device that achieves the above object comprises sample groove, in order to fixedly to be placed in sample wherein; One material feeding box contains leaching liquor; One material feeding box pumping, provide power with the leaching liquor that drives this material feeding box to this sample cell; One pH-value is adjusted liquid, comprises acid solution and alkaline solution; One pumping provides power to drive this pH-value adjustment acid solution that liquid was comprised and alkaline solution to this sample cell; One pH-value is measured meter, connects this sample cell to detect the pH-value of solution in this sample cell; And a plurality of surge drums, collection is by the extract of this sample cell institute stripping, the leaching liquor that this material feeding box pumping drives this material feeding box is delivered to this sample cell via pipeline, this pumping drives the adjustment of this pH-value acid solution and alkaline solution that liquid comprised and is delivered to this sample cell via pipeline, and flowing into mixed solution in this sample cell and this sample after abundant hybrid reaction, the extract of institute's stripping flows into this a plurality of surge drums via a difference pipeline.

Preferably, the acid solution of this pH-value adjustment liquid comprises nitric acid and sulfuric acid.

Preferably, the alkaline solution of this pH-value adjustment liquid comprises potassium hydroxide and NaOH.

Preferably, this sample cell further comprises a cover plate, a portable plate and a plurality of movable bolt, and this cover plate is arranged on this sample cell, and this movable bolt passes this cover plate and connects this portable plate.

Preferably, the bottom of this sample cell top further is provided with down fixedly rib, in order to bed hedgehopping with fix this sample; And below, the bottom of this portable plate further is provided with fixedly rib, in order to fix this sample.

Preferably, this cover plate offers a plurality of holes.

Preferably, this portable plate offers hole.

Preferably, the bottom of this sample cell offers hole.

Preferably, this pipeline and this difference pipeline further comprise a plurality of magnetic valves, in order to the flow direction of the solution of flowing through in this pipeline of control and this difference pipeline.

Description of drawings

Though the present invention will consult the accompanying drawing that contains preferred embodiment of the present invention and be filled part and to describe, should be appreciated that the personage who is familiar with one's own profession can be modified in invention described herein, obtains effect of the present invention simultaneously before described here.Therefore, must understand following description to the personage that is familiar with the one's own profession technology and Yan Weiyi discloses widely, and its content do not lie in restriction the present invention, wherein:

Fig. 1 is the calcspar of environmental dynamic stripping extraction device of the present invention.

Fig. 2 is the profile of sample cell.

The specific embodiment

See also Fig. 1 and Fig. 2, show the calcspar of environmental dynamic stripping extraction device of the present invention and the profile of sample cell respectively.Environmental dynamic stripping extraction device of the present invention comprises sample groove 9, in order to fixedly to be placed in sample 12 wherein; One material feeding box 4 contains leaching liquor; One material feeding box pumping 2, provide power with the leaching liquor that drives this material feeding box 4 to this sample cell 9; One pH-value is adjusted liquid, comprises acid solution and alkaline solution, and in preferred embodiment of the present invention, the alkaline solution that this pH-value is adjusted liquid is to be potassium hydroxide 5, and the acid solution of this pH-value adjustment liquid is to be nitric acid 6; One pumping 3 provides power to drive this pH-value adjustment acid solution that liquid was comprised and alkaline solution to this sample cell 9; One pH-value is measured meter 10, connects this sample cell 9 to detect the pH-value of solution in this sample cell 9; And a plurality of surge drums 111,112,113,114,115,116,117,118, collect extract by 9 strippings of this sample cell.

Please continue to consult Fig. 1, the leaching liquor that this material feeding box pumping 2 drives this material feeding box 4 (please cooperate and consult Fig. 2 via pipeline B, this pipeline B connected holes 22) be delivered to this sample cell 9, the magnetic valve 703 that is positioned at this pipeline B is the flow directions that are electrically connected this automation module and this pipeline leaching liquor that B flows through of control.

This pumping 3 drives the adjustment of this pH-value potassium hydroxide 5 and nitric acid 6 solution that liquid comprised and (please cooperate and consult Fig. 2 via pipeline A, this pipeline A connected holes 21) is delivered to this sample cell 9, is positioned at the magnetic valve the 701, the 702nd of this pipeline A, be electrically connected this automation module and the potassium hydroxide 5 of being flowed through in this pipeline of control A respectively and the flow direction of nitric acid 6 solution.

And flow into solution in this sample cell 9 after fully mixing via this pipeline A and this pipeline B, this pH-value is measured meter 10 and (please be cooperated and consult Fig. 2 via this pipeline C, this pipeline C connected holes 23) can determine the pH-value of the solution in this sample cell 9, and the acid base concentration situation of solution in visual this sample cell 9 of operator, moderately introduce this potassium hydroxide 5 and nitric acid 6 solution to this sample cell 9 to be adjusted to needed pH value of solution.

Please continue to consult Fig. 2, this sample cell 9 further comprises a cover plate 14, a portable plate 16 and a plurality of movable bolt 15, this cover plate 14 is arranged on this sample cell 9, this movable bolt 15 passes this cover plate 14 and connects this portable plate 16, top, the bottom of this sample cell 9 further is provided with a plurality of fixing ribs 13 down, in order to bed hedgehopping with fix this sample 12; And below, the bottom of this portable plate 16 further is provided with a plurality of fixedly ribs 17 of going up, in order to fix this sample 12.

When locking during this movable bolt 15, this portable plate 16 can descend, and the going up fixedly rib 17 and can also be fixed near this sample 12 gradually of below, the bottom of this portable plate 16; When unclamping this movable bolt 15, this portable plate 16 can rise, and below, the bottom of this portable plate 16 go up fixedly rib 17 meetings gradually away from this sample 12.

Flow into mixed solution in this sample cell 9 by this pipeline A and pipeline B, flow to the bottom of this sample cell 9 through hole 24, and with these sample 12 abundant hybrid reactions after, the extract of institute's stripping is just via a hole 25 and a difference pipeline and flow to respectively in this surge drum 111,112,113,114,115,116,117,118, wherein this difference pipeline is provided with a plurality of magnetic valves 704,705,706,707,708,709,710,711 and 712, be electrically connected the extract flow of being flowed through in this automation module and this difference pipeline of control to.

Though the present invention has disclosed preferred embodiment as above, right its is not in order to limit the present invention, anyly be familiar with this operator, without departing from the spirit and scope of the present invention, when doing various changes and modification, for example, adjust in the acid solution of liquid at pH-value of the present invention, salpeter solution is replaceable to be acid solution such as sulfuric acid; And pH-value of the present invention is adjusted in the alkaline solution of liquid, and potassium hydroxide solution is replaceable to be alkaline solution such as NaOH, also can reach effect of the present invention; Therefore, protection scope of the present invention is when looking accompanying being as the criterion that claim defines.

Claims

1. An environmental dynamic stripping extraction device, characterized in that it comprises:

a sample tank for fixing the sample placed therein;

a feeding box containing a drenching solution;

A feeding box pump provides power to drive the drenching solution of the aforementioned feeding box to the aforementioned sample tank;

A pH adjustment solution, including acidic solution and alkaline solution;

A pump that provides power to drive the acidic solution and alkaline solution contained in the aforementioned pH adjustment solution to the aforementioned sample tank;

A pH meter, connected to the aforementioned sample tank to detect the pH value of the solution in the aforementioned sample tank; and

A plurality of collecting cylinders, collecting the extract dissolved by the aforementioned sample tank;

Wherein the aforementioned sample tank further comprises a cover plate, a movable plate and a plurality of movable bolts, the aforementioned cover plate is arranged on the aforementioned sample tank, the aforementioned movable bolt passes through the aforementioned cover plate and connects the aforementioned movable plate, and the cover plate is provided with a plurality of holes, the movable plate is provided with holes;

Wherein, a lower fixing rib is further set above the bottom of the aforementioned sample tank to raise and fix the aforementioned sample; an upper fixing rib is further set under the bottom of the aforementioned movable plate to fix the aforementioned sample;

Wherein, the aforementioned feeding box pump drives the drenching solution in the aforementioned feeding box to be transported to the aforementioned sample tank through the pipeline, and the aforementioned pump drives the acidic solution and alkaline solution contained in the aforementioned pH adjustment solution to be transported to the aforementioned sample tank through the pipeline. A sample tank, and after the mixed solution flowing into the aforementioned sample tank and the aforementioned sample are fully mixed and reacted, the dissolved extract flows into the aforementioned plurality of collecting cylinders through a branch pipeline;

Wherein the aforementioned pipeline and the aforementioned branch pipeline further include a plurality of solenoid valves for controlling the flow direction of the solution flowing in the aforementioned pipeline and the aforementioned branch pipeline.

2 . The environmental dynamic dissolution extraction device according to claim 1 , wherein the acidic solution of the pH adjusting solution comprises nitric acid and sulfuric acid. 3 .

3. The environmental dynamic stripping and extraction device according to claim 1, wherein the alkaline solution of the aforementioned pH adjustment solution comprises potassium hydroxide and sodium hydroxide.

4. The environmental dynamic dissolution extraction device according to claim 1, wherein a hole is opened at the bottom of the sample tank.