CN202974801U

CN202974801U - Wettability tester

Info

Publication number: CN202974801U
Application number: CN 201220654988
Authority: CN
Inventors: 孙银宇; 聂容春; 徐初阳; 季悦; 郑继洪
Original assignee: Anhui University of Science and Technology
Current assignee: Anhui University of Science and Technology
Priority date: 2012-12-03
Filing date: 2012-12-03
Publication date: 2013-06-05
Anticipated expiration: 2022-12-03

Abstract

The utility model discloses a wettability tester which comprises a liquid containing tube and a material containing tube, wherein the liquid containing tube is positioned at the upper part and the material containing tube is positioned at the lower part and the liquid containing tube and the material containing tube are connected with each other; an acid or alkali solution is contained in the tube chamber of the liquid containing tube; the liquid containing tube is provided with a detection part for detecting the liquid height of the liquid containing tube; pH test paper is arranged at a tube port at the lower end of the material containing tube; and the tube chamber of the liquid containing tube is a cavity for containing a material to be detected. When the wettability of the coal is detected, the acid or alkali solution in the liquid containing tube is slowly poured into the material containing tube with coal powder till the pH test paper at the tube port at the lower end of the material containing tube changes in color, and the wettability of the coal is ultimately judged according to the time that the coal powder is wetted and the consumption quantity of the acid or alkali solution in the liquid containing tube according to the detection part. The final wetting point of the coal is judged according to the principle that the pH test paper changes in color when encountering acid or alkali solutions, the observation is convenient, the accuracy is high, the testing speed is fast, and the testing efficiency is effectively improved; and meanwhile the wettability tester is simple in structure and convenient to operate.

Description

The wettability determination instrument

Technical field

The utility model relates to the chemical industry measurement technical field, is specifically related to a kind of wettability determination instrument of powder.

Background technology

Wetting state refers to that solid interface is changed into the character of solid-liquid interface by solid-air interface, it is as the performance index of coal, the aspects such as coal separation, the pre-water injection dust control in coal seam, coal mining there is important impact, particularly in the pre-water injection dust control in coal seam, measure the wetting state of coal before water filling to the directive function that defines of water injection parameter.Chinese patent literature discloses the utility model patent (document number is ZL 200420021282.5) that a kind of name is called " a kind of powder wettability rapid measuring device ", the disclosed technical scheme of this utility model is to comprise scale indication device, glass guide channel and wide-necked bottle, this three part connects by glass tube, an end for the glass tube that fills determined powdered sample is connected with scale indication device, the other end is put into glass guide channel, during concrete the use, be marked with in wide-necked bottle to measure and use liquid, liquid in wide-necked bottle enters in glass guide channel by glass tube, the interior liquid of glass tube heat absorbing glass groove that determined powdered sample is housed produces pressure, the coloured water column that drives scale indication device moves, according to the distance that records the coloured water column in certain hour interval and move, thereby judge the wetting state of powder, this device measurement result can reflect the wetting state of powder intuitively, but whole apparatus structure is complicated, skill level to the tester during use requires high, test has certain difficulty, the time that test simultaneously needs is long, testing efficiency is low.

Summary of the invention

The purpose of this utility model is to provide a kind of wettability determination instrument of wetting state of energy Fast Measurement coal, and measurement result is conveniently observed and recorded to this analyzer, and simple in structure, and operation is convenient.

For achieving the above object, the technical solution adopted in the utility model is: a kind of wettability determination instrument, it is characterized in that: comprise the superposed liquid-holding pipe that is connected with each other and the charge pipe that is positioned at the bottom, the tube chamber collection of described liquid-holding pipe has acidity or alkaline solution, liquid-holding pipe is provided with the test section of measuring its liquid level, the mouth of pipe place, lower end of described charge pipe is provided with the PH test paper, and the tube chamber of charge pipe is the cavity volume that holds material to be measured.

Owing to adopting above technical scheme, acidity in liquid-holding pipe or alkaline solution are slowly poured in the charge pipe that fills coal dust, until stop during the PH test paper variable color at mouth of pipe place, charge pipe lower end, according to the wetting time of coal dust of record, and the acidity in the liquid-holding pipe of learning by test section or the consumption of alkaline solution, judge at last the size of the wetting state of coal.Judge the wetting terminal point of coal by the principle of PH test paper chance acid-base solution variable color, be convenient to observe, accuracy is high, and finding speed is fast, effectively improves the efficient of measuring.Simultaneously, the utility model is simple in structure, and is easy to operate.

Description of drawings

Fig. 1 is structural representation of the present utility model.

Embodiment

A kind of wettability determination instrument, comprise the superposed liquid-holding pipe 10 that is connected with each other and the charge pipe 20 that is positioned at the bottom, the tube chamber collection of described liquid-holding pipe 10 has acidity or alkaline solution, liquid-holding pipe 10 is provided with the test section 11 of measuring its liquid level, the mouth of pipe place, lower end of described charge pipe 20 is provided with PH test paper 30, and the tube chamber of charge pipe 20 is the cavity volume that holds material to be measured.Specifically, acidity during mensuration in liquid-holding pipe 10 or alkaline solution are slowly poured in the charge pipe 20 that fills coal dust, until stop during PH test paper 30 variable color at charge pipe 20 mouth of pipe places, lower end, write down the wetting time of coal dust, and recording the consumption of acidity or alkaline solution by test section 11, the time wetting according to coal dust and the consumption of solution can be judged the size of the wetting state of coal.The principle that the utility model utilizes PH test paper 30 to meet the acid-base solution variable color is judged the wetting terminal point of coal, is convenient to observe, and accuracy is high, and determination efficiency is high.Simultaneously, compared with prior art, the utility model is simple in structure easy to operate; when measuring the wetting state of coal; the lower end mouth of pipe of charge pipe 20 and PH test paper 30 can be resisted against on worktable, can pad with the surface of contact of worktable and establish the corrosion resistance plate body, play the effect of Protection platform.Measuring with in the selection of solution, acidity or alkaline solution all can, when selecting acid solution, PH test paper 30 look that reddens is the wetting terminal point of coal, when selecting alkaline solution, it is the wetting terminal points of coal that PH test paper 30 becomes blue.Preferably, Acidity of Aikalinity solution cheap and that concentration is low can be adopted, the cost of mensuration can be reduced like this.

Provide the scheme of being convenient to the test section observing and record to have multiple, preferred version as shown in Figure 1, specifically, described liquid-holding pipe 10 is transparent pipe, described test section 11 is the altitude scale line of mark on liquid-holding pipe 10.Transparent glass tube adds mark line, and this scheme not only simply but also directly perceived.In addition, also can adopt the scheme of window, as along the pipe range direction, clear glass is set on the tube wall of nontransparent liquid-holding pipe 10, on its glass surface, scale mark is set, so can realize equally the observation of liquid level and facilitate record.Certainly can also adopt other schemes, repeat no more herein.

Further, described analyzer is provided with the operation valve 40 of connecting path between closure or openness liquid-holding pipe 10 and charge pipe 20, make like this tester also to inject acidity or the alkaline solution of measuring use in liquid-holding pipe 10 by first closed control valve 40, fully carry out the preliminary work before measuring, simultaneously, operation valve 40 can be controlled the speed of acidity or alkaline solution filling in the charge pipe 20, the accuracy that further improves test result.Need to prove, liquid-holding pipe 10 can have kinds of schemes with the formation of charge pipe 20, as shown in Figure 1, liquid-holding pipe 10 can be a glass tube with charge pipe 20, in position, its underpart, operation valve 40 is set, spool can be selected the ball valve core structure, and body itself is as valve seat, this simple in structure, convenient operation.Also liquid-holding pipe 10 and charge pipe 20 independently can be machined, and then be connected with operation valve 40.

Further, the mouth of pipe place, lower end of described charge pipe 20 is provided with the pipe cap 50 that capping is transparence, and described pipe cap 50 is that detachable is sealed and matched with the lower end mouth of pipe of charge pipe 20, and the inner bottom surface of pipe cap 50 and PH test paper 30 lean.The mouth of pipe place, lower end of charge pipe 20 arranges pipe cap 50 can play the effect of supporting material to be measured and PH test paper 30, convenient operation of the present utility model.Preferably, the lower end mouth of pipe of described charge pipe 20 for thread seal coordinates, adopts that threaded engagement is easy to process, cost is low with pipe cap 50, and more convenient during operation.

Further, be provided with catoptron 60 below described pipe cap 50, placement catoptron 60 can facilitate the tester to the observation of PH test paper 30 variable colors below pipe cap 50, specifically, analyzer is fixed on iron stand and is in built on stilts state, be positioned on worktable and catoptron 60 be set below pipe cap 50, the variation that the tester observes PH test paper 30 colors by catoptron 60 is very convenient.

be prioritization scheme of the present utility model as shown in Figure 1, when specifically being used for measuring the wetting state of coal, first closed control valve 40, fill up coal dust in charge pipe 20, the lower end mouth of pipe pad of charge pipe 20 is established PH test paper 30 and is connected pipe cap 50, then inject acidity or alkaline solution in liquid-holding pipe 10, record the liquid level elemental height in liquid-holding pipe 10, then open operation valve 40, color by catoptron 60 observation PH test paper, when 30 variable color of PH test paper at once closed control valve 40 and write down this moment time, in at last wetting according to coal dust time and charge pipe, the consumption of solution is judged the size of the wetting state of coal.

Claims

1. wettability determination instrument, it is characterized in that: comprise the superposed liquid-holding pipe (10) that is connected with each other and the charge pipe (20) that is positioned at the bottom, the tube chamber collection of described liquid-holding pipe (10) has acidity or alkaline solution, liquid-holding pipe (10) is provided with the test section (11) of measuring its liquid level, the mouth of pipe place, lower end of described charge pipe (20) is provided with PH test paper (30), and the tube chamber of charge pipe (20) is the cavity volume that holds material to be measured.

2. wettability determination instrument according to claim 1, it is characterized in that: described liquid-holding pipe (10) is transparent pipe, described test section (11) is the altitude scale line of the upper mark of liquid-holding pipe (10).

3. wettability determination instrument according to claim 1 and 2, it is characterized in that: described analyzer is provided with the operation valve (40) of connecting path between closure or openness liquid-holding pipe (10) and charge pipe (20).

4. wettability determination instrument according to claim 3, it is characterized in that: the mouth of pipe place, lower end of described charge pipe (20) is provided with the pipe cap that capping is transparence (50), described pipe cap (50) is that detachable is sealed and matched with the lower end mouth of pipe of charge pipe (20), and the inner bottom surface of pipe cap (50) and PH test paper (30) lean.

5. wettability determination instrument according to claim 4, it is characterized in that: described pipe cap (50) is that thread seal coordinates with the lower end mouth of pipe of charge pipe (20).

6. wettability determination instrument according to claim 5, is characterized in that: be provided with catoptron (60) below described pipe cap (50).