CN106546508B - A kind of adsorbent material absorption property experiment automatic weighing device and method - Google Patents

A kind of adsorbent material absorption property experiment automatic weighing device and method Download PDF

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CN106546508B
CN106546508B CN201710045700.6A CN201710045700A CN106546508B CN 106546508 B CN106546508 B CN 106546508B CN 201710045700 A CN201710045700 A CN 201710045700A CN 106546508 B CN106546508 B CN 106546508B
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adsorbent bed
weighing
adsorbent
shaped
fixed frame
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CN106546508A (en
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闫奔
张辉
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Southeast University
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N5/00Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
    • G01N5/02Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by absorbing or adsorbing components of a material and determining change of weight of the adsorbent, e.g. determining moisture content

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Abstract

The present invention provides a kind of adsorbent material absorption property water bath with thermostatic control experiments to adsorbent bed timing automatic weighing device and method, mainly solves the problems, such as in the measurement of constant temperature sucting wet experiment as record quality needs interrupt experiments and causes experiment not easy to control.Wherein, automatic weighing device includes: weighing apparatus, including weighing apparatus ontology and the weighing tray being arranged on weighing apparatus ontology;Elevating mechanism cooperates with weighing apparatus so that weighing apparatus moves up and down along the vertical direction with adsorbent bed;Experimental provision, cooperation lifting device, which provides, tests required isoperibol.The automatic weighing device does not need interrupt experiments i.e. and can measure the variation that adsorbent material adsorbs absorption bed mass after adsorbate, carries out stable experiment for a long time, improves the accuracy rate of measuring, mitigate the workload of experimenter.

Description

A kind of adsorbent material absorption property experiment automatic weighing device and method
Technical field
The present invention relates to mechanical and control field, the automatic title of adsorbent material in specifically a kind of water bath with thermostatic control environment Weight device and method.
Background technique
At present in adsorbent material absorption property experimentation, changes with time to study adsorbance, need laboratory technician Interruption experiment, which takes out adsorbent bed from water bath with thermostatic control environment, weighs to adsorbent bed, again puts adsorbent material after the completion of weighing It returns in constant temperature perseverance water bath and continues adsorption experiment.The greatest problem that manual operation is deposited is that the poor repeatability for weighing operation weighs As a result there is biggish random error.Adsorbent bed leaves speed and the path of the water surface, the time of repose after leaving the water surface in experiment Length can all influence to adsorb remaining water bath shampoo quantity in bed body, finally increase experimental error.Secondly, manual operation will affect The continuity of adsorption test.The operation of manual weighing often temporarily removes adsorbent bed from experiment pipeline, completes wait weigh After put in back experiment pipeline continue to test.Finally, manual operation will increase the workload that experiment difficulty increases laboratory technician, especially When the Therapy lasted long period, the time interval between weighing is difficult to accurately control twice.
Summary of the invention
Goal of the invention: in order to overcome existing adsorption experiment measure in need interrupt experiments for record quality and cause to test The deficiency of control and precision, while in order to reduce the labor intensity of laboratory technician, the present invention provides a kind of automatic weighing device, should be certainly Dynamic weighing device does not need interrupt experiments i.e. and can measure the variation of adsorbent bed quality, stablizes speed of experiment, improves the standard of measurement True rate mitigates the labor intensity of laboratory technician significantly simultaneously.
Technical solution:
A kind of adsorbent material absorption property tests automatic weighing device, including support outer framework, weighing apparatus, elevating mechanism and Experimental provision;
Thermostatted water is partially placed under the support outer framework;The weighing apparatus is mounted on the support outer framework the top, Including weighing apparatus placement plate, the weighing apparatus ontology being placed in weighing apparatus placement plate and the title being placed on the weighing apparatus ontology Weight pallet;
The elevating mechanism is the lifting screw and sliding block being arranged on the support outer framework;Connect with the lifting screw It is connected to the stepper motor of its rotation of control;The sliding block is fitted on the lifting screw;The sliding block and the placement Plate is fixedly connected;
The experimental provision includes that the hold-down devices being fixedly connected with the placement plate and the weighing tray pass through lightweight The adsorbent bed fixed frame of flexible cord connection and the adsorbent bed being removably installed on the adsorbent bed fixed frame;In the lower press fitting Set the rubber stopper that lower section is equipped with the air inlet/outlet of the closed adsorbent bed;It is equipped on the support outer framework described for limiting Adsorbent bed moves upwards the lever of distance.
The lifting screw is two vertical screw rods disposed in parallel, is fixed by screws on the support outer framework.
The adsorbent bed fixed frame is two U-shaped boards staggered relatively, and the adsorbent bed is U-shaped adsorbent bed;The U-shaped suction The inlet and outlet nozzle of attached bed is individually positioned in the U-shaped board, and is fixed by clip.
Two angles on the outside of two U-shaped boards offer through-hole, open in the quadrangle corresponding position of the weighing tray Equipped with through-hole;It is connected between the adsorbent bed fixed frame and the quadrangle through-hole of the weighing tray by lightweight flexible cord.
The adsorbent bed fixed frame is two pieces of vertical U-shaped boards and is provided with the rectangle of elliptical aperture positioned at one piece of bottom Plate is viscous and forms;The adsorbent bed is U-shaped adsorbent bed;The inlet and outlet nozzle of the U-shaped adsorbent bed is individually positioned in the U-shaped board On, and fixed by clip.
The U-shaped adsorbent bed inlet and outlet internal diameter is 25mm, and inlet and outlet circle center distance is 140mm, adsorbent bed bottom to absorption The vertical range of bed nozzle is 180mm.
The pushing plane of the hold-down devices is equipped with the circular hole that a pair of of diameter is slightly larger than gas-guide tube, the distance of center circle of two circular holes From for 140mm and respectively with the inlet and outlet centering of adsorbent bed;It is respectively equipped on two circular holes into gas-guide tube and gas-guide tube out;It is described Gas-guide tube protrudes rubber stopper 50mm~60mm separately down into gas-guide tube and out.
A kind of adsorbent material absorption property experiment automatic weighing method, comprising steps of
Step S10: setting weighing time interval;
Step S20: when to the time interval of setting, weighing apparatus is reset, the starting of elevating mechanism stepper motor will it is described to The adsorbent bed 8 of weighing is lifted 170mm~180mm height, and adsorbent bed fixed frame is made to leave water surface 5mm~10mm;
Step S30: it after waiting 5 seconds, weighs to the adsorbent bed and adsorbent bed fixed frame, was automatically recorded every 5 seconds Data are primary, record 3 times;
Step S40: after counting 3 times, weighing is completed, and adsorbent bed fixed frame and adsorbent bed are put down in elevating mechanism starting, Gu The hold-down devices being scheduled under weighing apparatus placement plate make U-shaped adsorbent bed that the buoyancy of water be overcome to sink down into designated position, and make rubber stopper Fill in adsorbent bed nozzle;
Step S50: it measures in adsorbent bed be not put into adsorbent bed fixed frame and adsorbent bed measured when material respectively Gross mass and the quality for being put into the adsorbent bed fixed frame and adsorbent bed that measure after hygroscopic material, and be calculated absorption adsorbate after Quality incrementss.
The utility model has the advantages that using weighing device and method of the invention, it is ensured that the consistency that each weighing movement executes, drop Low experimental error;The operation bidirectional for avoiding the artificial dismounting adsorbent bed in midway, improves the continuity of adsorption test;Significant drop The low labor intensity of laboratory technician, improves conventional efficient.
Detailed description of the invention
The Figure of description for constituting a part of the invention is used to provide further understanding of the present invention, and of the invention shows Examples and descriptions thereof are used to explain the present invention for meaning property, does not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 shows the structural schematic diagram of the embodiment of automatic weighing device according to the present invention;
Fig. 2 shows the back structures schematic diagrames of the automatic weighing device of Fig. 1;
Wherein, 1, weighing tray, 2, weighing apparatus ontology, 3, weighing apparatus placement plate, 4, driving device, 5, hold-down devices, 6, Rubber stopper, 7, clip, 8, U-shaped adsorbent bed, 9, adsorbent bed fixed frame, 10, baffle, 11, support outer framework, 12, lightweight flexible cord, 13, air induction conduit, 14, outtake tube.
Specific embodiment
The present invention will be further explained with reference to the accompanying drawing.
In conjunction with Fig. 1 and Fig. 2, adsorbent material absorption property experiment automatic weighing device of the invention includes weighing apparatus, lifting Mechanism, experimental provision and support outer framework 11.Support outer framework 11 is divide into upper part and lower part, and supports the lower part of outer framework 11 For placing thermostatted water, isoperibol needed for experiment is provided;Weighing apparatus is mounted on support 11 the top of outer framework, including weighing support Disk 1, weighing apparatus ontology 2 and weighing apparatus placement plate 3.Weighing tray 1 is placed on weighing apparatus ontology 2, and weighing apparatus ontology 2 is placed on In weighing apparatus placement plate 3.Elevating mechanism is two driving devices 4 for being fixed on support 11 two sides of outer framework, and driving device 4 passes through Screw is fixed on support outer framework 11, and power of the stepper motor as driving device 4 is equipped in the top of driving device 4 The movement of component, stepper motor is controlled by single-chip microcontroller.Driving device 4 include guide rail, positioned at rail crown stepper motor, with The parallel lifting screw of guide rail and cover the sliding block on lifting screw.Lifting screw passes through stepper motor perpendicular to placement plate 3 Control lifting screw rotation;Sliding block is equipped on lifting screw, and as the rotation of lifting screw is above and below lifting screw It is mobile, and have on sliding block equipped with fixing seat;Guide rail is used to limit the sliding of sliding block, guarantees that sliding block slides in the up-down direction.It puts It sets plate 3 to be fixedly connected with fixing seat with screw with nut, can move up and down with sliding block in moving up and down for lifting screw, So that weighing apparatus moves up and down along the vertical direction.
The top of the lower part of support outer framework 11, including hold-down devices 5, U-shaped adsorbent bed 8 and suction is arranged in experimental provision Attached bed fixed frame 9;Adsorbent bed fixed frame 9 is two U-shaped boards staggered relatively, and two angles on the outside of two U-shaped boards offer logical Hole offers through-hole in the quadrangle corresponding position of weighing tray 1, and lightweight flexible cord 12 is connected two-by-two between the quadrangle through-hole of the two. Adsorbent bed fixed frame 9 is incessantly by two pieces of horizontally U-shaped board groups at can also be two pieces of vertical U-shaped boards and position in the present invention One piece of rectangular slab for being provided with elliptical aperture in bottom is glued and is formed.In weighing, 12 stress of lightweight flexible cord is straightened, and when absorption is light Matter flexible cord 12 does not stress, and nature is curved to hang down.The length of flexible cord 12 are as follows: when it is straightened, U-shaped 8 nozzle of adsorbent bed and rubber stopper 6 are spaced For 2mm~3mm.In order to enable lightweight flexible cord 12 will not encounter placement plate 3 when being straightened, 1 or so length of weighing tray and front and back are wide It spends size and is greater than placement plate 3.U-shaped adsorbent bed 8 can be put into adsorbent material, import and export spout diameter about 25mm, import and export distance of center circle From about 140mm, the vertical range about 180mm of U-shaped 8 bottom of adsorbent bed to U-shaped 8 nozzle of adsorbent bed, on the outside of U-shaped 8 pipe of adsorbent bed away from Hoop has the clip 7 of about 10mm wide at nozzle 2mm.U-shaped adsorbent bed 8 is placed on adsorbent bed fixed frame 9, the disengaging of U-shaped adsorbent bed 8 Pipe is put into U-shaped board, and fixed by clip 7, and U-shaped 8 integral installation of adsorbent bed entire in this way is above thermostatted water.Institute when experiment The U-shaped adsorbent bed stated is placed in water bath with thermostatic control, water surface distance adsorbent bed fixed frame upper flat plate about 5mm.Hold-down devices 5 and placement plate 3, which are adhesively fixed, is integrated, for U-shaped adsorbent bed 8 to be depressed into thermostatted water.There is a pair of of diameter in the pushing plane of hold-down devices 5 Slightly larger than the circular hole of gas-guide tube, the circle center distance of two circular holes about 140mm and respectively with the inlet and outlet centering of adsorbent bed, into gas-guide tube 13 and gas-guide tube 14 is inserted into two circular holes respectively out.Rubber stopper 6, bottom on rubber stopper 6 are equipped in the pushing plane two sides of hold-down devices 5 Face diameter about 30mm, bottom surface diameter about 20mm, the high about 20mm of rubber stopper 6, disengaging gas-guide tube protrude rubber stopper separately down 50mm~60mm, which is fixed on, to be pushed in plane.When experiment, 6 bottom surface of rubber stopper is pressed on the disengaging gas tube orifice of U-shaped adsorbent bed 8 On.
Bar 10 is equipped in the middle part of support outer framework 11, the setting of bar 10, can be in experiment in 8 inside of U-shaped adsorbent bed It hinders U-shaped adsorbent bed 8 to rise, is detached from U-shaped adsorbent bed 8 with rubber stopper 6, drops back on adsorbent bed fixed frame 9.
In the present invention, U-shaped adsorbent bed imports and exports internal diameter about 25mm, imports and exports circle center distance about 140mm, adsorbent bed bottom To the vertical range about 180mm of adsorbent bed nozzle, the clip on the outside of adsorbent bed pipe is away from nozzle about 2mm, the wide about 10mm of clip.
In the present invention, weighing apparatus ontology 2 is electronic balance, and the movement of single-chip microcontroller and electronic balance passes through computer programming Control.
Automatic weighing method of the invention is as follows:
Step S10: setting weighing time interval;
Step S20: when to the time interval of setting, weighing apparatus is reset, the starting of elevating mechanism stepper motor will it is described to The U-shaped adsorbent bed 8 of weighing is lifted 170mm~180mm height, and adsorbent bed fixed frame 9 is made to leave water surface 5mm~10mm;At this point, U Type adsorbent bed 8 is temporarily disengaged from adsorbent bed fixed frame 9 under the drive of rubber stopper 6, when U-shaped adsorbent bed 8 rises certain altitude, gear Bar 10 hinders U-shaped adsorbent bed 8 to rise, and is detached from U-shaped adsorbent bed 8 with rubber stopper 6, drops back on adsorbent bed fixed frame 9.U-shaped absorption Bed 8 drops back into U-shaped 8 inlet and outlet nozzle of adsorbent bed and 6 bottom surface distance 2mm~3mm of rubber stopper after adsorbent bed fixed frame 9, into gas-guide tube 13 and gas-guide tube 14 still gos deep into U-shaped 50 mm of adsorbent bed~60mm out, ensure that ambient atmos are difficult to while not influencing measurement Diffuse into U-shaped adsorbent bed 8.
Step S30: after waiting 5 seconds, weighing to the U-shaped adsorbent bed 8 and adsorbent bed fixed frame 9, automatic every 5 seconds It is primary to record data, records 3 times;At this point, the weighing tray 1 on weighing apparatus ontology 2 is sling adsorbent bed by lightweight flexible cord 12 and is consolidated Determine frame 9 and U-shaped adsorbent bed 8 is weighed.
Step S40: after counting 3 times, weighing is completed, and adsorbent bed fixed frame 9 and U-shaped adsorbent bed 8 are put in elevating mechanism starting Under, the hold-down devices 5 being fixed under weighing apparatus placement plate 3 make U-shaped adsorbent bed 8 that the buoyancy of water be overcome to sink down into designated position, and Rubber stopper 6 is set to fill in U-shaped 8 nozzle of adsorbent bed.Stepper motor starting will put down the object to be weighed and fix in water.
The automatic weighing device of the present embodiment at work can automatic running, when in use without using manually carrying out weight Record reduces worker in the labor intensity of weighing link.
The gross mass of measured adsorbent bed fixed frame and adsorbent bed is when being not put into material in U-shaped adsorbent bed 8, put Quality is measured after entering hygroscopic material, corresponding quality is recorded according to the time interval of setting during the experiment, pass through Conversion obtains sample initial mass, adsorb quality incrementss after adsorbate
The above is only a preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered It is considered as protection scope of the present invention.

Claims (8)

1. a kind of adsorbent material absorption property tests automatic weighing device, it is characterised in that: including support outer framework (11), weighing Device, elevating mechanism and experimental provision;
Thermostatted water is partially placed under the support outer framework (11);It is most upper that the weighing apparatus is mounted on the support outer framework (11) Side, including weighing apparatus placement plate (3), the weighing apparatus ontology (2) being placed on weighing apparatus placement plate (3) and is placed on the weighing Weighing tray (1) on device ontology (2);
The elevating mechanism is lifting screw and sliding block of the setting on support outer framework (11);Connect with the lifting screw It is connected to the stepper motor of its rotation of control;The sliding block is fitted on the lifting screw;The sliding block and the placement Plate (3) is fixedly connected;
The experimental provision includes that the hold-down devices (5) being fixedly connected with the placement plate (3) and the weighing tray (1) are logical The suction crossing the adsorbent bed fixed frame (9) of lightweight flexible cord (12) connection and being removably installed on the adsorbent bed fixed frame (9) Attached bed;The rubber stopper (6) of the air inlet/outlet of the closed adsorbent bed is equipped with below the hold-down devices (5);In the support Outer framework (11) is equipped with the lever (10) that distance is moved upwards for limiting the adsorbent bed.
2. adsorbent material absorption property according to claim 1 tests automatic weighing device, it is characterised in that: the lifting Screw rod is two vertical screw rods disposed in parallel, is fixed by screws on the support outer framework (11).
3. adsorbent material absorption property according to claim 1 tests automatic weighing device, it is characterised in that: the absorption Bed fixed frame (9) is two U-shaped boards staggered relatively, and the adsorbent bed is U-shaped adsorbent bed;The inlet/outlet pipe of the U-shaped adsorbent bed Mouth is individually positioned in the U-shaped board, and fixed by clip (7).
4. adsorbent material absorption property according to claim 3 tests automatic weighing device, it is characterised in that: in two institutes It states two on the outside of U-shaped board angles and offers through-hole, offer through-hole in the quadrangle corresponding position of the weighing tray (1);It is described It is connected between adsorbent bed fixed frame (9) and the quadrangle through-hole of the weighing tray (1) by lightweight flexible cord (12).
5. adsorbent material absorption property according to claim 1 tests automatic weighing device, it is characterised in that: the absorption Bed fixed frame (9) is that two pieces of vertical U-shaped boards and one piece of rectangular slab for being provided with elliptical aperture positioned at bottom are glued and formed;Institute Stating adsorbent bed is U-shaped adsorbent bed;The inlet and outlet nozzle of the U-shaped adsorbent bed is individually positioned in the U-shaped board, and passes through clip (7) fixed.
6. adsorbent material absorption property according to claim 3 tests automatic weighing device, it is characterised in that: described U-shaped It is 25mm that adsorbent bed, which imports and exports internal diameter, and inlet and outlet circle center distance is 140mm, vertical range of the adsorbent bed bottom to adsorbent bed nozzle For 180mm.
7. adsorbent material absorption property according to claim 1 tests automatic weighing device, it is characterised in that: the pushing The pushing plane of device (5) is equipped with the circular hole that a pair of of diameter is slightly larger than gas-guide tube, and the circle center distance of two circular holes is 140mm and divides Not with the inlet and outlet centering of adsorbent bed;It is respectively equipped on two circular holes into gas-guide tube (13) and gas-guide tube (14) out;It is described into leading Tracheae (13) and out gas-guide tube (14) protrude rubber stopper 50mm~60mm separately down.
8. a kind of automatic weighing method using adsorbent material absorption property described in claim 1 experiment automatic weighing device, It is characterized by comprising steps:
Step S10: setting weighing time interval;
Step S20: when to the time interval of setting, weighing apparatus is reset, and elevating mechanism stepper motor starts suction to be weighed Attached bed 8 is lifted 170mm~180mm height, and adsorbent bed fixed frame is made to leave water surface 5mm~10mm;
Step S30: it after waiting 5 seconds, weighs to the adsorbent bed and adsorbent bed fixed frame, automatically recorded data every 5 seconds Once, it records 3 times;
Step S40: after counting 3 times, weighing is completed, and adsorbent bed fixed frame and adsorbent bed are put down, be fixed on by elevating mechanism starting Hold-down devices under weighing apparatus placement plate make U-shaped adsorbent bed that the buoyancy of water be overcome to sink down into designated position, and fill in rubber stopper Adsorbent bed nozzle;
Step S50: total matter that adsorbent bed fixed frame and adsorbent bed measured when material are not put into adsorbent bed is measured respectively Measure and be put into the mass M of the adsorbent bed fixed frame and adsorbent bed that measure after hygroscopic material0, and matter after absorption adsorbate is calculated Measure incrementss.
CN201710045700.6A 2017-01-22 2017-01-22 A kind of adsorbent material absorption property experiment automatic weighing device and method Active CN106546508B (en)

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CN112246417A (en) * 2020-10-19 2021-01-22 湘乡市旺达输送设备制造有限公司 Stone crusher feed inlet with adjustable function
CN113533116A (en) * 2021-06-10 2021-10-22 国网江苏省电力有限公司电力科学研究院 Device and method for measuring mass change of adsorbent

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CN103611935A (en) * 2013-11-28 2014-03-05 山西中泰源工业自动化设备有限公司 Robot workstation system for magnetic material die casting forming
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