CN110567835B - Soil sample treatment device and method based on heavy metal detection - Google Patents
Soil sample treatment device and method based on heavy metal detection Download PDFInfo
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- CN110567835B CN110567835B CN201910941494.6A CN201910941494A CN110567835B CN 110567835 B CN110567835 B CN 110567835B CN 201910941494 A CN201910941494 A CN 201910941494A CN 110567835 B CN110567835 B CN 110567835B
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- 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
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
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- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/02—Analysing 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
- G01N5/025—Analysing 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 for determining moisture content
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- 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
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
- G01N2001/2866—Grinding or homogeneising
Abstract
The utility model discloses a soil sample treatment device based on heavy metal detection, and relates to the technical field of soil detection. The heating device comprises a heating barrel and a heating bowl fixed on the heating barrel, wherein a water inlet is formed in the side face of the bottom of the heating barrel, and an L-shaped overflow pipe is fixed in the heating barrel; the heating barrel is also internally provided with an electric heating unit and a temperature sensor, the electric heating unit and the temperature sensor are both connected with a controller, and the electric heating unit and the temperature sensor are both connected with a power supply; the week side of heating alms bowl is equipped with the outer edge, and outer edge is equipped with a plurality of fixed turn-ups, and fixed turn-ups threaded connection has set screw, is equipped with on the heating barrel lateral wall with set screw position complex blind hole. The utility model dries by the combined use of the heating bowl, the heating barrel, the end cover and the moisture absorption device, and solves the problem of secondary cross contamination easily caused in the existing drying process.
Description
Technical Field
The utility model belongs to the technical field of soil detection, and particularly relates to a soil sample treatment device and method based on heavy metal detection.
Background
The soil is complex in composition and generally consists of mineral substances, organic matters generated by decomposition of animal and plant residues, water, air and other solid, liquid and gas phases. Before the indoor soil physicochemical property analysis is determined, the soil sample collected in the field must be prepared, and the standard operation in the soil sample preparation process is the guarantee of accurate analysis result. Soil analysis samples collected from the field need to be dried, sorted, picked, ground, screened, bottled and stored for six processes. Drying is the collection of soil samples that must be removed as soon as possible, and the purpose is that fresh samples are temporary field conditions that change with changes in the moisture status of the soil, and are not reliable constants, and air drying is primarily aimed at measuring the result of an air-dried soil sample as an equilibrium constant that is relatively stable and reliable, thereby facilitating the comparison of different samples.
At present, a general soil drying method is used for collecting soil analysis samples in different areas from the field, placing the soil analysis samples on a vessel, spreading the soil analysis samples on a laboratory table, and blowing the soil analysis samples by using an electric fan.
Disclosure of Invention
The utility model aims to provide a soil sample treatment device and a treatment method based on heavy metal detection, which are used for drying through the combined use of a heating pot, a heating barrel, an end cover and a moisture absorption device and solve the problem of secondary cross contamination easily caused in the existing drying process.
In order to solve the technical problems, the utility model is realized by the following technical scheme:
the utility model relates to a soil sample treatment device based on heavy metal detection, which comprises a heating barrel and a heating bowl fixed on the heating barrel, wherein a water inlet is formed in the side surface of the bottom of the heating barrel, an L-shaped overflow pipe is fixed in the heating barrel, the bottom end of the L-shaped overflow pipe penetrates through the side wall of the heating barrel, and the L-shaped overflow pipe is positioned below the heating bowl; the heating barrel is also internally provided with an electric heating unit and a temperature sensor, the electric heating unit and the temperature sensor are both connected with a controller, and the electric heating unit and the temperature sensor are both connected with a power supply; the heating pot is characterized in that an outer edge is arranged on the periphery of the heating pot, a plurality of fixing flanges are arranged on the edge of the outer edge, the fixing flanges are in threaded connection with fixing screws, and blind holes matched with the fixing screws in position are formed in the outer side wall of the heating barrel; the bottom side of the outer edge is provided with a sealing convex edge, and the end face of the heating barrel is provided with an annular groove matched with the sealing convex edge.
Furthermore, an enclosing edge is arranged at the upper part of the heating pot, and a first sealing groove is formed in the top side surface of the enclosing edge; a sealing cover is arranged at the end part of the heating pot, and an air outlet and an air inlet are formed in the sealing cover; the sealing structure is characterized in that a convex edge is arranged on the bottom side face of the sealing cover, a guide part matched with the surrounding edge is arranged on the convex edge, a first sealing ring is fixed on the convex edge, and the first sealing ring is in sealing fit with the first sealing groove.
Furthermore, the air outlet is connected with a moisture absorption device through a conduit, the air inlet is connected with an air inlet pipe, and the air outlet of the air inlet pipe extends into the bottom of the heating bowl; the moisture absorption device comprises a box body and a box cover which are mutually matched in a sealing way, and activated carbon is filled in a sealing area defined by the box body and the box cover; an inlet and an outlet are respectively arranged on two opposite inner side walls of the box body, and a plurality of first baffles and a plurality of second baffles are arranged between the other two opposite inner side walls of the box body between the inlet and the outlet in a staggered manner; the side surface of the inner bottom of the box cover is provided with a second sealing gasket, and the side surface of the inner bottom of the box body is provided with a first sealing gasket; the bottom side surface of the first baffle abuts against the first sealing gasket, and the distance between the top surface of the first baffle and the second sealing gasket is 1/8-1/4 of the height of the first baffle; the top surface of the second baffle abuts against the second sealing gasket and the bottom side surface distance of the second baffle is larger than the bottom side surface distance of the second sealing gasket; the distance between the first sealing gasket and the second baffle is 1/8-1/4; the second baffle and the first baffle are identical in structure and size; bulges are uniformly distributed on the two outer side surfaces of the first baffle; through second baffle, first baffle and bellied setting, increased the path length of air current at moisture content absorbing device, the absorption effect of reinforcing active carbon to moisture content.
Furthermore, a second sealing groove is formed in the opening end of the box body, a second sealing ring is fixed in the second sealing groove, and a third sealing groove in sealing fit with the second sealing ring is formed in the box cover; the box body open end is equipped with a plurality of first installation pieces, be equipped with on the lid with first installation piece matched with second installation piece, second installation piece and first installation piece pass through the bolt and link to each other, the tip threaded connection of bolt has a nut.
The heating barrel is characterized by further comprising a base, a plurality of cushion blocks are arranged on the lateral surface of the outer bottom of the base, a limiting ring used for placing the heating barrel is arranged on the upper surface of the base, and an opening matched with the L-shaped overflow pipe is formed in one side of the limiting ring; a threaded column is fixed on the base; the threaded column is connected with a movable arm, one end of the movable arm is provided with a rotating block, a through hole is formed in the rotating block, an adjusting nut is movably connected in the through hole and is in threaded connection with the threaded column, the other end of the movable arm is provided with a circular plate, a threaded hole in threaded connection with the sealing cover is formed in the circular plate, a limiting bulge matched with the threaded hole is further arranged on the outer side wall of the sealing cover, and an operating block is arranged at the top of the sealing cover; the base is further provided with a limiting column, a threaded blind hole is formed in the end portion of the limiting column, a limiting screw is in threaded connection with the threaded blind hole, and a through hole in movable fit with the limiting screw is formed in the movable arm.
A soil sample treatment method based on heavy metal detection comprises the following steps:
1. putting a soil sample to be detected into a heating pot, closing a sealing cover, starting an electric heating unit to heat liquid in a heating barrel, and heating the heating pot through liquid heat transfer;
2. during heating, water vapor generated in the heating bowl is guided into the moisture absorption device through the guide pipe, and the moisture absorption device absorbs moisture; and (5) after the soil sample in the heating pot is completely dried and taken out, grinding the soil sample into powder by using a grinding rod.
In the drying process, the moisture absorption device can absorb water vapor generated by heating the soil sample by the heating bowl, and can absorb peculiar smell and the like, so that air pollution is avoided; meanwhile, the weight of the moisture absorbing device before and after drying is weighed, the obtained weight difference is the weight lost by the soil sample in the drying process, and meanwhile, the weight of the soil sample added into the heating pot is weighed, so that the moisture content of the dried soil sample can be obtained.
Simultaneously through the electrical heating unit, the temperature control system that temperature sensor and controller are constituteed, realize the constant temperature heating of heating barrel, simultaneously through water to the heating alms bowl heat transfer heating, avoid the local or whole heating temperature of heating alms bowl too high, thereby the condition that takes place burnt paste in the drying process takes place, simultaneously the accessible communicates a flexible metal collapsible tube at the top of L type overflow pipe, thereby buckle through flexible metal collapsible tube changes the liquid height in the high change heating barrel of L type overflow pipe, thereby adjust water to the heating alms bowl heat transfer heating effect.
According to the utility model, the sealing cover is connected to the movable arm in a threaded manner, and meanwhile, the movable arm is rotatably arranged on the threaded column, so that the sealing cover and the heating bowl can be conveniently installed in a matched manner by rotating the movable arm along the threaded column; simultaneously, the adjusting nut can be rotated along the thread of the threaded column to adjust the mounting height of the movable arm, the movable arm is limited through the matching of the limiting column and the limiting screw rod, the movable arm is prevented from rotating automatically, and meanwhile, the sealing cover can be controlled to rotate along the thread of the threaded hole through the operation block.
The utility model has the following beneficial effects:
the utility model solves the problem of secondary cross contamination easily caused in the existing drying process by the combined use of the heating bowl, the heating barrel, the end cover and the moisture absorption device.
Of course, it is not necessary for any product in which the utility model is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of a soil sample treatment device according to the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a cross-sectional view taken along line a-a of FIG. 2;
FIG. 4 is an enlarged view of a portion A of FIG. 3;
FIG. 5 is a schematic sectional view of the moisture absorbing device according to the present invention;
fig. 6 is a partially enlarged view of fig. 5 at B.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "bottom," "top," "height," "outer," "inner," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be considered as limiting the present invention.
Referring to fig. 1-6, the present invention is a soil sample treatment apparatus based on heavy metal detection, including a heating barrel 3 and a heating bowl 6 fixed on the heating barrel 3, a water inlet 31 is provided on the bottom side of the heating barrel 3, an L-shaped overflow pipe 4 is fixed in the heating barrel 3, the bottom end of the L-shaped overflow pipe 4 penetrates through the side wall of the heating barrel 3, and the L-shaped overflow pipe 4 is located below the heating bowl 6; an electric heating unit and a temperature sensor are also arranged in the heating barrel 3, the electric heating unit and the temperature sensor are both connected with a controller, and the electric heating unit and the temperature sensor are both connected with a power supply; the periphery of the heating bowl 6 is provided with an outer edge 63, the edge of the outer edge 63 is provided with a plurality of fixing flanges 65, the fixing flanges 65 are in threaded connection with fixing screws 66, and the outer side wall of the heating barrel 3 is provided with blind holes matched with the fixing screws 66 in position; the bottom side of the outer edge 63 is provided with a sealing convex rib 64, and the end surface of the heating barrel 3 is provided with an annular groove matched with the sealing convex rib 64.
Referring to fig. 3-4, the upper portion of the heating bowl 6 is provided with a surrounding edge 61, and the top side of the surrounding edge 61 is provided with a first sealing groove 62; a sealing cover 5 is arranged at the end part of the heating pot 6, and an air outlet 51 and an air inlet 52 are arranged on the sealing cover 5; the bottom side surface of the sealing cover 5 is provided with a convex edge 55, the convex edge 55 is provided with a guide part 56 matched with the surrounding edge 61, a first sealing ring 57 is fixed on the convex edge 55, and the first sealing ring 57 is in sealing fit with the first sealing groove 62.
Referring to fig. 5-6, the air outlet 51 is connected to a moisture absorption device through a conduit, the air inlet 52 is connected to an air inlet pipe, and the air outlet of the air inlet pipe extends into the bottom of the heating bowl 6; the moisture absorption device comprises a box body 7 and a box cover 8 which are mutually matched in a sealing way, and activated carbon is filled in a sealing area enclosed by the box body 7 and the box cover 8; an inlet 72 and an outlet 73 are respectively arranged on two opposite inner side walls of the box body 7, and a plurality of first baffles 74 and a plurality of second baffles 75 are arranged between the other two opposite inner side walls of the box body 7 between the inlet 72 and the outlet 73 in a staggered manner; the inner bottom side of the box cover 8 is provided with a second sealing gasket 81, and the inner bottom side of the box body 7 is provided with a first sealing gasket 71; 1/8-1/4, in which the bottom side of the first flap 74 abuts against the first gasket 71 and the top side of the first flap is spaced from the second gasket 81 by the height of the first flap 74; the top surface of the second baffle 75 abuts against the second gasket 81 and the bottom side surface thereof is spaced apart; the distance between the first seal gasket 71 and the second baffle 75 is 1/8-1/4; the second baffle 75 and the first baffle 74 are identical in structure and size; the two outer side surfaces of the first baffle 74 are uniformly provided with bulges; through the arrangement of the second baffle plate 75, the first baffle plate 74 and the protrusions, the path length of the airflow in the moisture absorption device is increased, and the moisture absorption effect of the activated carbon is enhanced.
Referring to fig. 6, the open end of the box body 7 is provided with a second sealing groove 76, a second sealing ring 83 is fixed in the second sealing groove 76, and the box cover 8 is provided with a third sealing groove 82 which is in sealing fit with the second sealing ring 83; the opening end of the box body 7 is provided with a plurality of first mounting blocks 77, the box cover 8 is provided with second mounting blocks 84 matched with the first mounting blocks 77, the second mounting blocks 84 are connected with the first mounting blocks 77 through bolts 85, and the end parts of the bolts 85 are in threaded connection with nuts 86.
Referring to fig. 1-3, the heating barrel further comprises a base 1, a plurality of cushion blocks 12 are arranged on the lateral surface of the outer bottom of the base 1, a limiting ring 11 for placing the heating barrel 3 is arranged on the upper surface of the base 1, and an opening matched with the L-shaped overflow pipe 4 is arranged on one side of the limiting ring 11; a threaded column 13 is also fixed on the base 1; the threaded column 13 is connected with a movable arm 2, one end of the movable arm 2 is provided with a rotating block 21, a through hole is arranged in the rotating block 21, an adjusting nut 22 is movably connected in the through hole, the adjusting nut 22 is in threaded connection with the threaded column 13, the other end of the movable arm 2 is provided with a circular plate 24, the circular plate 24 is provided with a threaded hole 25 in threaded connection with the sealing cover 5, the outer side wall of the sealing cover 5 is also provided with a limiting bulge 53 matched with the threaded hole 25, and the top of the sealing cover 5 is provided with an operating block 54; the base 1 is further provided with a limiting column 14, the end of the limiting column 14 is provided with a threaded blind hole 15, the threaded blind hole 15 is in threaded connection with a limiting screw 16, and the movable arm 2 is provided with a through hole 23 in movable fit with the limiting screw 16.
A soil sample treatment method based on heavy metal detection comprises the following steps:
1. putting a soil sample to be detected into the heating bowl 6, closing the sealing cover 5, starting the electric heating unit to heat the liquid in the heating barrel 3, and heating the heating bowl 6 through liquid heat transfer;
2. during heating, water vapor generated in the heating bowl 6 is guided into the moisture absorption device through the guide pipe, and the moisture absorption device absorbs moisture; and (5) after the soil sample in the heating pot 6 is completely dried and taken out, grinding the soil sample into powder by using a grinding rod.
In the drying process, the moisture absorption device can absorb water vapor generated by heating the soil sample by the heating bowl 6, and can absorb peculiar smell and the like, so that air pollution is avoided; meanwhile, the weight of the moisture absorbing device before and after drying is weighed, the obtained weight difference is the weight lost by the soil sample in the drying process, and meanwhile, the weight of the soil sample is added into the heating pot 6, so that the moisture content of the dried soil sample can be obtained.
Through the electrical heating unit, the temperature control system that temperature sensor and controller are constituteed, realize the constant temperature heating of heating barrel 3, simultaneously carry out the heat transfer heating to heating alms bowl 6 through water, avoid heating the local or whole heating temperature of alms bowl 6 too high, thereby the condition that takes place to be burnt and paste in drying process takes place, simultaneously the accessible communicates a flexible metal collapsible tube at the top of L type overflow pipe 4, thereby change the liquid height in the heating barrel 3 through the bending type of flexible metal collapsible tube 4 height change L type overflow pipe, thereby adjust the water and carry out the heat transfer heating effect to heating alms bowl 6.
The sealing cover 5 is connected to the movable arm 2 in a threaded mode, meanwhile, the movable arm 2 is rotatably installed on the threaded column 13, and the sealing cover 5 and the heating bowl 6 are conveniently installed in a matched mode by rotating the movable arm 2 along the threaded column 13; meanwhile, the installation height of the movable arm 2 can be adjusted by screwing the adjusting nut 22 along the threaded column 13, the movable arm 2 is limited by matching the limiting column 14 and the limiting screw 16, the movable arm 2 is prevented from rotating by itself, and the sealing cover 5 can be controlled to be screwed along the threaded hole 25 by the operating block 54.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the utility model disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model. The utility model is limited only by the claims and their full scope and equivalents.
Claims (2)
1. The soil sample processing device based on heavy metal detection comprises a heating barrel (3) and a heating bowl (6) fixed on the heating barrel (3), wherein a water inlet (31) is formed in the bottom side surface of the heating barrel (3), an electric heating unit and a temperature sensor are further arranged in the heating barrel (3), the electric heating unit and the temperature sensor are both connected with a controller, and the electric heating unit and the temperature sensor are both connected with a power supply;
the method is characterized in that:
the heating barrel is characterized by further comprising a base (1), a plurality of cushion blocks (12) are arranged on the lateral surface of the outer bottom of the base (1), a limiting ring (11) used for placing the heating barrel (3) is arranged on the upper surface of the base (1), and an opening matched with the L-shaped overflow pipe (4) is formed in one side of the limiting ring (11);
a threaded column (13) is fixed on the base (1);
the other end of the movable arm (2) is provided with a rotating block (21), a through hole is formed in the rotating block (21), an adjusting nut (22) is movably connected in the through hole, the adjusting nut (22) is in threaded connection with the threaded column (13), and the top of the sealing cover (5) is provided with an operating block (54);
an L-shaped overflow pipe (4) is fixed in the heating barrel (3), the bottom end of the L-shaped overflow pipe (4) penetrates through the side wall of the heating barrel (3), and the L-shaped overflow pipe (4) is positioned below the heating bowl (6);
an outer edge (63) is arranged on the periphery of the heating bowl (6), a plurality of fixing flanges (65) are arranged on the edge of the outer edge (63), the fixing flanges (65) are in threaded connection with fixing screws (66), and blind holes matched with the fixing screws (66) in position are formed in the outer side wall of the heating barrel (3); a sealing rib (64) is arranged on the bottom side surface of the outer edge (63), and an annular groove matched with the sealing rib (64) is formed in the end surface of the heating barrel (3); a sealing cover (5) is arranged at the end part of the heating bowl (6),
the threaded column (13) is connected with a movable arm (2), the base (1) is also provided with a limiting column (14), the end part of the limiting column (14) is provided with a threaded blind hole (15), the threaded blind hole (15) is in threaded connection with a limiting screw rod (16), and the movable arm (2) is provided with a through hole (23) which is movably matched with the limiting screw rod (16);
a circular plate (24) is arranged at one end of the movable arm (2), a threaded hole (25) in threaded connection with the sealing cover (5) is formed in the circular plate (24), and a limiting bulge (53) matched with the threaded hole (25) is further arranged on the outer side wall of the sealing cover (5);
the upper part of the heating pot (6) is provided with a surrounding edge (61), and the top side surface of the surrounding edge (61) is provided with a first sealing groove (62);
the sealing cover (5) is provided with an air outlet (51) and an air inlet (52); a convex edge (55) is arranged on the bottom side surface of the sealing cover (5), a guide part (56) matched with the surrounding edge (61) is arranged on the convex edge (55), a first sealing ring (57) is fixed on the convex edge (55), and the first sealing ring (57) is in sealing fit with the first sealing groove (62);
the air outlet (51) is connected with a moisture absorption device through a conduit, the air inlet (52) is connected with an air inlet pipe, and the air outlet of the air inlet pipe extends into the bottom of the heating bowl (6);
a second sealing groove (76) is formed in the opening end of the box body (7), a second sealing ring (83) is fixed in the second sealing groove (76), and a third sealing groove (83) in sealing fit with the second sealing ring is formed in the box cover (8);
a plurality of first mounting blocks (77) are arranged at the opening end of the box body (7), a second mounting block (84) matched with the first mounting blocks (77) is arranged on the box cover (8), the second mounting blocks (84) are connected with the first mounting blocks (77) through bolts (85), and a nut (86) is in threaded connection with the end part of each bolt (85);
a soil sample treatment method of a soil sample treatment device based on heavy metal detection comprises the following steps:
(1) putting a soil sample to be detected into the heating pot (6), closing the sealing cover (5), starting the electric heating unit to heat the liquid in the heating barrel (3), and heating the heating pot (6) through liquid heat transfer;
(1) during heating, water vapor generated in the heating bowl (6) is guided into the moisture absorption device through the guide pipe, and the moisture absorption device absorbs moisture; and (3) after the soil sample in the heating pot (6) is completely dried and taken out, grinding the soil sample into powder by using a grinding rod.
2. The soil sample processing device based on heavy metal detection of claim 1, wherein the moisture absorption device comprises a box body (7) and a box cover (8) which are hermetically matched with each other, and a sealed area enclosed by the box body (7) and the box cover (8) is filled with activated carbon;
an inlet (72) and an outlet (73) are respectively arranged on two opposite inner side walls of the box body (7), and a plurality of first baffles (74) and a plurality of second baffles (75) are arranged between the other two opposite inner side walls of the box body (7) between the inlet (72) and the outlet (73) in a staggered manner; a second sealing gasket (81) is arranged on the inner bottom side surface of the box cover (8), and a first sealing gasket (71) is arranged on the inner bottom side surface of the box body (7);
the bottom side surface of the first baffle (74) abuts against the first sealing gasket (71) and the distance between the top surface of the first baffle and the second sealing gasket (81) is 1/8-1/4 of the height of the first baffle (74); the top surface of the second baffle plate (75) abuts against the second sealing gasket (81) and the distance between the bottom surface of the second baffle plate and the first sealing gasket (71) is 1/8-1/4 of the height of the second baffle plate (75);
the second baffle (75) and the first baffle (74) are identical in structure and size; the two outer side surfaces of the first baffle (74) are uniformly provided with bulges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910941494.6A CN110567835B (en) | 2019-09-30 | 2019-09-30 | Soil sample treatment device and method based on heavy metal detection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910941494.6A CN110567835B (en) | 2019-09-30 | 2019-09-30 | Soil sample treatment device and method based on heavy metal detection |
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| CN110567835A CN110567835A (en) | 2019-12-13 |
| CN110567835B true CN110567835B (en) | 2022-06-14 |
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| CN111678726A (en) * | 2020-06-18 | 2020-09-18 | 西安源丰诚工程咨询有限公司 | Drilling geotome for frozen soil and frozen soil collection method using same |
| CN111595614A (en) * | 2020-06-18 | 2020-08-28 | 西安源丰诚工程咨询有限公司 | Portable frozen soil sampler and frozen soil collection method adopting same |
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