CN111323559A - Soil heavy metal digestion and heating equipment - Google Patents
Soil heavy metal digestion and heating equipment Download PDFInfo
- Publication number
- CN111323559A CN111323559A CN202010097231.4A CN202010097231A CN111323559A CN 111323559 A CN111323559 A CN 111323559A CN 202010097231 A CN202010097231 A CN 202010097231A CN 111323559 A CN111323559 A CN 111323559A
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- heavy metal
- annular
- motor
- soil heavy
- liquid
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- 230000029087 digestion Effects 0.000 title claims abstract description 28
- 239000002689 soil Substances 0.000 title claims abstract description 28
- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 25
- 238000010438 heat treatment Methods 0.000 title claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 99
- 238000003756 stirring Methods 0.000 claims abstract description 28
- 238000005485 electric heating Methods 0.000 claims abstract description 16
- 238000007599 discharging Methods 0.000 claims abstract description 9
- 230000005540 biological transmission Effects 0.000 claims description 18
- 239000000945 filler Substances 0.000 claims description 4
- 238000010304 firing Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 16
- 230000008569 process Effects 0.000 abstract description 12
- 239000003153 chemical reaction reagent Substances 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 abstract description 2
- 239000002253 acid Substances 0.000 description 21
- 230000006378 damage Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000012271 agricultural production Methods 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 231100000171 higher toxicity Toxicity 0.000 description 1
- 231100001240 inorganic pollutant Toxicity 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000000120 microwave digestion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/44—Sample treatment involving radiation, e.g. heat
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
- G01N33/245—Earth materials for agricultural purposes
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- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Immunology (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Pathology (AREA)
- Analytical Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Remote Sensing (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a soil heavy metal digestion heating device, and relates to the field of soil heavy metal detection. The automatic stirring machine comprises a machine base, wherein an electric heating plate is arranged at the top of the machine base, crucibles are arranged on the electric heating plate, machine frames are symmetrically arranged on two sides of the machine base, slide rails are arranged on the inner side wall of each machine frame, slide blocks are arranged on the slide rails, a first motor is arranged in the machine base, a driving wheel is arranged on an output shaft of the first motor, a guide wheel is arranged at the top of the machine frame, a driving belt is sleeved between the guide wheel and the driving wheel, a fixed plate is arranged between the two slide blocks, a second motor; the liquid feeding hole is formed in the fixed plate, the annular liquid discharging box communicated with the liquid feeding hole is arranged at the bottom of the fixed plate, and the liquid discharging holes are formed in the bottom of the annular liquid discharging box. The invention has the beneficial effects that: can drive agitating unit and reciprocate, conveniently add the sample, can realize clearing up the stirring of in-process, through automatic liquid feeder, add required reagent, whole process need not artificial closely operation again.
Description
Technical Field
The invention relates to the field of soil heavy metal detection, in particular to a soil heavy metal digestion and heating device.
Background
The land from ancient to present is the treasure of people, and the modern land is still valued. Particularly, with the development of industrialized urbanization in recent years, the problem of heavy metal pollution of soil is concerned, the investigation of the pollution condition becomes a problem to be solved urgently, the soil is a main carrier of agricultural production and is an indispensable part of ecological environment, and therefore, the analysis of the heavy metal content of agricultural soil has important significance for soil quality monitoring and agricultural product safety guarantee.
The soil inorganic pollutants are relatively prominent in heavy metals, and the heavy metals are easy to accumulate and are converted into methyl compounds with higher toxicity because the heavy metals cannot be decomposed by soil microorganisms, and even some of the heavy metals are accumulated in a human body at harmful concentration through a food chain and seriously harm the health of the human body.
At present, the digestion method of heavy metals in soil mainly comprises electric heating plate digestion, high-pressure closed tank digestion, microwave digestion and the like; electric heating plate digestion is most commonly used, but the electric heating plate digestion process has the following problems: in the process of electric hot plate digestion, reagents such as strong acid and the like need to be added manually, so that the danger coefficient is high, and experimental data is inaccurate; and because the analyst needs to uncover the cap for many times to observe the digestion condition of the sample in the digestion process, the acid liquor condensed on the cap is easy to drip on the electric heating plate when the cup cover is removed every time, the electric heating plate is corroded, and potential safety hazards exist on the analyst due to the leaked acid liquor.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides the soil heavy metal digestion heating equipment which can drive the stirring device to move up and down, so that the samples can be conveniently added, the stirring in the digestion process can be realized, the required reagent is added through the automatic liquid feeder, the whole process does not need manual close-range operation, and the safety is improved; in addition, the annular liquid outlet box can also be used as a crucible cover, and condensed acid gas flows back into the crucible through the stirring rod.
A soil heavy metal digestion heating device comprises a machine base, wherein an electric heating plate is arranged at the top of the machine base, crucibles are arranged on the electric heating plate, frames are symmetrically arranged on two sides of the machine base, slide rails are arranged on the inner side wall of each frame, slide blocks are arranged on the slide rails, a first motor is arranged in the machine base, a transmission wheel is arranged on an output shaft of the first motor, a guide wheel is arranged at the top of the machine base, a transmission belt is sleeved between the guide wheel and the transmission wheel, the slide blocks are fixedly connected with the transmission belt, a fixed plate is arranged between the two slide blocks, a second motor is arranged on the fixed plate, the output shaft of the second motor faces the direction of the crucibles, and a; the liquid feeding device is characterized in that liquid feeding holes are formed in the fixed plate, an annular liquid discharging box communicated with the liquid feeding holes is arranged at the bottom of the fixed plate, and a plurality of liquid discharging holes are formed in the bottom of the annular liquid discharging box.
The annular liquid outlet box is characterized in that the lower surface of the bottom of the annular liquid outlet box is downward conical, a connecting pipe is arranged at the top of the annular liquid outlet box, and the connecting pipe is inserted into the liquid adding hole.
And the top of the fixed plate is provided with a fixed frame for fixing the automatic liquid filler.
The stirring device comprises a stirring rod and stirring blades positioned at the bottom end of the stirring rod.
The center of the fixing plate is provided with a through hole, and the output shaft of the second motor penetrates through the through hole.
And the bottom of the sliding rail is provided with a limiting block.
The frame top sets up the fixed block, the fixed block extends the setting to the frame inboard, set up the mounting groove on the fixed block, the leading wheel is located the mounting groove.
A plurality of annular grooves are formed in the inner sides of the bottoms of the annular liquid outlet boxes and communicated with 2 adjacent annular grooves, and liquid outlet holes are uniformly distributed in the annular grooves.
The diameter of the annular liquid outlet box is smaller than that of the crucible.
Compared with the prior art, the invention has the beneficial effects that:
1. this device can drive agitating unit and reciprocate, firstly conveniently adds the sample, secondly can realize clearing up the stirring of in-process to through automatic liquid feeder, add required reagent, whole process need not artificial closely operation again, improves the security.
2. Add required strong acid in the automatic liquid feeder, flow into annular through the liquid feeding hole and go out the liquid box, then flow into the crucible through the play liquid hole that annular goes out the liquid box in, need not artifical the interpolation at the in-process of clearing up to flow out through a plurality of liquid holes, make the even addition of strong acid in soil.
3. The annular goes out liquid box bottom lower surface and is decurrent taper shape, the annular goes out liquid box top and sets up the connecting pipe, the connecting pipe is pegged graft downtheholely at the liquid feeding, under the effect of high temperature, mixed acid and sample reaction, form (high temperature) sour steam, the acid that goes out liquid box bottom condensation at the annular drips the conical surface flow direction stirring rod that goes out the liquid box along the annular, drip to the crucible along the stirring rod, the acidizing fluid is not attached to on the annular goes out liquid box, and the annular goes out liquid box and reciprocates under the effect of motor, and control about not, acidizing fluid drips on the electric plate when having effectively avoided removing annular liquid box, avoid the electric plate to be corroded.
4. The frame top sets up the fixed block, and the fixed block extends the setting to the frame inboard, sets up the mounting groove on the fixed block, and the leading wheel is located the mounting groove, and the fixed block can be dismantled fixedly at the frame top, easy to assemble, change leading wheel.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a cross section of an annular liquid outlet box in the invention;
FIG. 3 is a schematic top view of the inner bottom wall of the annular liquid outlet box of the present invention.
Reference numerals shown in the drawings: 1. a machine base; 2. an electrical heating plate; 3. a crucible; 4. a frame; 5. a slide rail; 6. A slider; 7. a first motor; 8. a driving wheel; 9. a guide wheel; 10. a transmission belt; 11. a fixing plate; 12. A second motor; 13. a liquid adding hole; 14. an annular liquid outlet box; 15. a liquid outlet hole; 16. a fixing frame; 17. a stirring rod; 18. a stirring blade; 19. a limiting block; 20. a fixed block; 21. mounting grooves; 22. an annular groove; 23. And (4) connecting the pipes.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and these equivalents also fall within the scope of the present application.
As shown in figure 1, a soil heavy metal digestion heating device comprises a base 1, an electric heating plate 2 is arranged at the top of the base 1, a crucible 3 is arranged on the electric heating plate 2, the crucible is a polytetrafluoroethylene beaker, the bottom of the crucible is arranged on the upper surface of the electric heating plate, and the electric heating plate can heat the bottom of the crucible. Frame 4 is set up to 1 bilateral symmetry of frame, set up slide rail 5 on the 4 inside walls of frame, set up slider 6 on the slide rail 5, the slider can reciprocate along the slide rail. The improved automatic transmission device is characterized in that a first motor 7 is arranged inside the machine base 1 and can realize positive and negative rotation, a transmission wheel 8 is arranged on an output shaft of the first motor 7, a guide wheel 9 is arranged at the top of the machine frame 4, a transmission belt 10 is sleeved between the guide wheel 9 and the transmission wheel 8, the sliding block 6 is fixedly connected with one side of the transmission belt 10, the first motor rotates to drive the transmission wheel to rotate, the transmission wheel rotates to drive the transmission belt to rotate, and the transmission belt drives the sliding block to move up and down on the sliding rail. A fixing plate 11 is arranged between the two sliding blocks 6, a second motor 12 is arranged on the fixing plate 11, an output shaft of the second motor 12 faces the direction of the crucible 3, a stirring device is arranged on an output shaft of the second motor 12, the second motor drives the stirring device to rotate, soil in the digestion process is stirred, manual stirring in the reaction process is not needed, and damage to a body is avoided; the liquid adding device is characterized in that a liquid adding hole 13 is formed in the fixed plate 11, an annular liquid outlet box 14 communicated with the liquid adding hole 13 is arranged at the bottom of the fixed plate 11, a fixed sleeve is arranged at the bottom of the fixed plate 11, the annular liquid outlet box is located in the fixed sleeve and is fixed in the sleeve through bolts, a plurality of liquid outlet holes 15 are formed in the bottom of the annular liquid outlet box 14, the diameter of the annular liquid outlet box 14 is smaller than that of the crucible 3, so that a reagent can conveniently flow into the crucible, an automatic liquid feeder is arranged at the liquid adding hole, required strong acid is added into the automatic liquid feeder, the strong acid flows into the annular liquid outlet box through the liquid adding hole and then flows into the crucible through the liquid outlet holes of the annular liquid outlet box, manual adding is not needed in the digestion process, and; in addition, in the experimental process, the annular liquid outlet box can also be used as a pot cover of the crucible, and the annular liquid outlet box can be driven by the motor to move up and down, so that the operation is convenient.
As shown in fig. 2, the lower surface of the bottom of the annular liquid outlet box 14 is downward conical, the top of the annular liquid outlet box 14 is provided with a connecting pipe 23, the connecting pipe 23 is inserted into the liquid adding hole 13, under the action of high temperature, mixed acid reacts with a sample to form (high temperature) acid steam, acid drops formed by condensation at the bottom of the annular liquid outlet box flow to the stirring rod along the conical surface of the annular liquid outlet box, the acid drops to the crucible along the stirring rod, the acid liquid is not attached to the annular liquid outlet box, and the annular liquid outlet box moves up and down under the action of the motor instead of moving left and right, so that the acid liquid drops on the electric hot plate when the annular liquid outlet box is moved away, and the electric hot plate is.
Wherein, the top of the fixed plate 11 is provided with a fixed frame 16 for fixing the automatic liquid filler, and the automatic liquid filler is placed in the fixed frame.
As optimization, the center of the fixing plate 11 is provided with a through hole, the output shaft of the second motor 12 penetrates through the through hole, so that the second motor is conveniently fixed, and the second motor is fixed on the fixing plate, so that the firmness of the second motor is improved.
When the device is used, the motor is started at first, the fixed plate is lifted, the crucible is conveniently placed on the electric heating plate, soil to be digested is placed into the crucible, then the motor rotates reversely, the height of the fixed plate is reduced, the stirring device extends into the crucible, the bottom end of the annular liquid outlet box is contacted with the top surface of the crucible, then the automatic liquid adding device is arranged at the position of the liquid adding hole, required strong acid is added into the automatic liquid adding device, the strong acid flows into the annular liquid outlet box through the liquid adding hole, the strong acid flows into the crucible through the liquid outlet hole of the annular liquid outlet box, manual addition is not needed in the digestion process, and the strong acid flows out through the liquid outlet holes, so that the strong acid is uniformly; the stirring is carried out through the stirring device, and manual close-range operation is not needed in the whole process; when the sample is cleared up and the annular liquid outlet box needs to be removed for inspection, the motor is started to lift the fixed plate, so that the annular liquid outlet box is driven to lift, and the annular liquid outlet box can be removed.
In order to prevent the fixing plate from moving downwards excessively to damage the stirring device, the bottom of the sliding rail 5 is provided with a limiting block 19.
4 tops of frame set up fixed block 20, fixed block 20 extends the setting to 4 inboards of frame, set up mounting groove 21 on the fixed block 20, leading wheel 9 is located mounting groove 21, and the fixed block can be dismantled and fix at the frame top, easy to assemble, change the leading wheel.
As shown in fig. 3, a plurality of annular grooves are arranged on the inner side of the bottom of the plurality of annular liquid outlet boxes 14, the adjacent 2 annular grooves are communicated, and the liquid outlet holes 15 are uniformly distributed in the annular groove 22, so that the reagent can rapidly enter the liquid outlet hole through the annular groove.
Claims (9)
1. The utility model provides a soil heavy metal digestion firing equipment which characterized in that: comprises a machine base (1), wherein an electric heating plate (2) is arranged at the top of the machine base (1), a crucible (3) is arranged on the electric heating plate (2), machine frames (4) are symmetrically arranged at two sides of the machine base (1), a slide rail (5) is arranged on the inner side wall of the machine frame (4), a slide block (6) is arranged on the slide rail (5), a first motor (7) is arranged in the machine base (1), a transmission wheel (8) is arranged on the output shaft of the first motor (7), a guide wheel (9) is arranged at the top of the machine frame (4), a transmission belt (10) is sleeved between the guide wheel (9) and the transmission wheel (8), the slide block (6) is fixedly connected with the transmission belt (10), a fixed plate (11) is arranged between the two slide blocks (6), a second motor (12) is arranged on the fixed plate (11), the output shaft of the second motor (12, an output shaft of the second motor (12) is provided with a stirring device; the liquid feeding device is characterized in that a liquid feeding hole (13) is formed in the fixed plate (11), an annular liquid discharging box (14) communicated with the liquid feeding hole (13) is arranged at the bottom of the fixed plate (11), and a plurality of liquid discharging holes (15) are formed in the bottom of the annular liquid discharging box (14).
2. The soil heavy metal digestion heating device according to claim 1, characterized in that: the lower surface of the bottom of the annular liquid outlet box (14) is downward conical, a connecting pipe (23) is arranged at the top of the annular liquid outlet box (14), and the connecting pipe (23) is inserted in the liquid feeding hole (13).
3. The soil heavy metal digestion heating device according to claim 1, characterized in that: and a fixing frame (16) for fixing the automatic liquid filler is arranged at the top of the fixing plate (11).
4. The soil heavy metal digestion heating equipment of claim 3, characterized in that: the stirring device comprises a stirring rod (17) and a stirring blade (18) positioned at the bottom end of the stirring rod (17).
5. The soil heavy metal digestion heating device according to claim 1, characterized in that: the center of the fixing plate (11) is provided with a through hole, and an output shaft of the second motor (12) penetrates through the through hole.
6. The soil heavy metal digestion heating device according to claim 1, characterized in that: and the bottom of the sliding rail (5) is provided with a limiting block (19).
7. The soil heavy metal digestion heating device according to claim 1, characterized in that: frame (4) top sets up fixed block (20), fixed block (20) extend the setting to frame (4) inboard, set up mounting groove (21) on fixed block (20), leading wheel (9) are located mounting groove (21).
8. The soil heavy metal digestion heating device according to claim 1, characterized in that: a plurality of annular grooves (22) are arranged on the inner side of the bottom of the annular liquid outlet boxes (14), the adjacent 2 annular grooves (22) are communicated with each other, and the liquid outlet holes (15) are uniformly distributed in the annular grooves (22).
9. The soil heavy metal digestion heating equipment of claim 7, characterized in that: the diameter of the annular liquid outlet box (14) is larger than that of the crucible (3), and the diameter of the annular groove (22) at the outermost ring is smaller than that of the crucible (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010097231.4A CN111323559A (en) | 2020-02-17 | 2020-02-17 | Soil heavy metal digestion and heating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010097231.4A CN111323559A (en) | 2020-02-17 | 2020-02-17 | Soil heavy metal digestion and heating equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111323559A true CN111323559A (en) | 2020-06-23 |
Family
ID=71168863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010097231.4A Pending CN111323559A (en) | 2020-02-17 | 2020-02-17 | Soil heavy metal digestion and heating equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111323559A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112730020A (en) * | 2020-12-21 | 2021-04-30 | 广东贝源检测技术股份有限公司 | Soil heavy metal digestion device |
-
2020
- 2020-02-17 CN CN202010097231.4A patent/CN111323559A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112730020A (en) * | 2020-12-21 | 2021-04-30 | 广东贝源检测技术股份有限公司 | Soil heavy metal digestion device |
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