CN212932141U - Pretreatment evaporation drying device for reducing air lead pollution - Google Patents
Pretreatment evaporation drying device for reducing air lead pollution Download PDFInfo
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- CN212932141U CN212932141U CN202021534833.3U CN202021534833U CN212932141U CN 212932141 U CN212932141 U CN 212932141U CN 202021534833 U CN202021534833 U CN 202021534833U CN 212932141 U CN212932141 U CN 212932141U
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Abstract
The utility model discloses a pretreatment evaporation drying device for reducing air lead pollution, which belongs to the field of laboratory lead determination equipment and comprises a protective cylinder, a cover plate and a base; the protective cylinder body is a hollow cylindrical cylinder body, and the top of the protective cylinder body is provided with an oblique opening; the lowest part of the bevel opening is provided with a stop block; one end of the cover plate is provided with an opening corresponding to the stop block, and the upper end of the opening is provided with a curved surface flange; the base comprises a circular placing groove and an annular liquid receiving groove; the annular liquid receiving groove is arranged at the periphery of the circular placing groove; the bottom of the protective cylinder is arranged in the annular liquid receiving groove; the cover plate covers the bevel opening. The utility model discloses when plumbous elemental content and its lead isotope constitute in survey sample, can furthest reduce the container that the plumbous entering survey sample in the air, avoid the mistake of the experimental result that obtains or reduce the error of experimental test result to convenient to use, cost and maintenance cost are lower.
Description
Technical Field
The utility model belongs to the technical field of plumbous measuring equipment and specifically relates to a pretreatment evaporation to dryness device that reduces air lead pollution is related to.
Background
The method is characterized in that the content of lead in a sample is measured in a clean laboratory, the test of the lead isotope composition is carried out in an ultra-clean laboratory, the sample is placed in a container in the preprocessing process, then the container containing the sample is placed on a heating plate to be heated, the pollution source of lead in the laboratory is large, the pollution to the sample cannot be ignored due to the high content of lead in the atmosphere, the content of the lead in the sample and the isotope composition of the lead are measured in the laboratory, the lead in the atmosphere is reduced to enter the sample as far as possible, the sample is polluted, and if the situation cannot be avoided, the measured data has large errors, and the result is not accurate.
Generally, the content of lead element in a sample and the isotope composition of the lead element are generally carried out in a hundred-grade chemical safety cabinet in an ultraclean laboratory, but the purchase price and the maintenance cost of the equipment are high, and in the experimental process, a protective door of the safety cabinet is also opened, and air possibly enters the sample again in the process of opening the protective door, so in order to improve the authenticity and the reliability of the measurement data of the content of the lead element in the sample and the isotope composition of the lead element, the equipment which is low in price and can furthest reduce the pollution of the lead in the air to the sample is required to be provided to solve the defects in the prior art.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a when plumbous elemental content and its isotope constitute in survey sample, can reduce the lead in the air by furthest and get into the container of survey sample, reduce experimental error to convenient to use's pretreatment evaporation to dryness device that reduces air lead pollution.
In order to solve the technical problem, the utility model discloses a technical scheme does: a pretreatment evaporation drying device for reducing air lead pollution comprises a protective cylinder, a cover plate and a base; the protective cylinder body is a hollow cylindrical cylinder body, and the top of the protective cylinder body is provided with an oblique opening; a stop block is arranged at the lowest part of the bevel opening; an opening corresponding to the stop block is formed in one end of the cover plate, and a curved surface retaining edge is arranged at the upper end of the opening; the base comprises a circular placing groove and an annular liquid receiving groove; the annular liquid receiving groove is arranged on the periphery of the circular placing groove; the bottom of the protective cylinder body is placed in the annular liquid receiving groove; the cover plate covers the bevel opening.
Preferably, the area of the cover plate is larger than that of the bevel opening.
Preferably, the cover plate is rectangular.
Preferably, the bevel is inclined at an angle of 60 to 75 degrees.
Preferably, the stopper is rectangular.
Compared with the prior art, the beneficial effects of the utility model are that: because the utility model is provided with the protective cylinder body and the cover plate; the protective cylinder body is a hollow cylindrical cylinder body, and the top of the protective cylinder body is provided with an oblique opening; the lowest part of the bevel opening is provided with a stop block; one end of the cover plate is provided with an opening corresponding to the stop block, and the upper end of the opening is provided with a curved surface flange; when the lead sample container is used, the container for containing lead samples is covered by the protective cylinder, the opening of the cover plate is placed opposite to the stop block, and the cover plate can well seal the bevel opening due to the curved surface flange arranged at the upper end of the opening; in addition, the container needs to be heated in the experimental determination process, after heating, air flows upwards after being heated due to the fact that the interior of the protective cylinder is heated, and the internal pressure of the protective cylinder is higher than the outside, so that the outside air cannot enter the container to pollute a sample, and the air is well prevented from entering the sample; therefore, when the utility model is used for measuring the lead and isotope composition in the sample, the lead in the air can be reduced to the maximum extent to enter the container for measuring the sample, the experimental error is reduced, the use is convenient, and the manufacturing cost and the maintenance cost are lower; in addition, due to the fact that the base is additionally arranged, the protective cylinder and the cover plate are placed on the base when the automatic collecting device is used, acid liquor condensed in the cover plate drips along the inner wall of the protective cylinder, and finally drips in the annular liquid receiving groove to be collected.
Drawings
FIG. 1 is a schematic structural view of a pretreatment evaporation device for reducing air lead pollution according to the present invention;
FIG. 2 is a schematic structural view of a protective cylinder of the pretreatment evaporation device for reducing air lead pollution;
FIG. 3 is a left side view of FIG. 2;
FIG. 4 is a schematic structural diagram of a cover plate of the pretreatment evaporation drying device for reducing air lead pollution;
FIG. 5 is a cross-sectional view A-A of FIG. 4;
FIG. 6 is a top view of the base of the pretreatment evaporation device for reducing air lead pollution;
FIG. 7 is a cross-sectional view B-B of FIG. 6;
fig. 8 is a reference diagram of the usage status of the present invention.
Detailed Description
The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1 to 7, the pretreatment evaporation device for reducing air lead pollution of the present invention comprises a protective cylinder 1, a cover plate 2 and a base 3; wherein, base 3 is used for placing the container that awaits measuring, protection barrel 1 and apron 2. The protective cylinder body 1 is a hollow cylindrical cylinder body, the top of the protective cylinder body is provided with an inclined opening 11, and the inclined angle of the inclined opening 11 is 60-75 degrees; a stop block 12 is arranged at the lowest part of the bevel opening 11; one end of the cover plate 2 is provided with an opening 21 corresponding to the stop block 12, and the upper end of the opening 21 is provided with a curved surface flange 22; the base 3 comprises a round placing groove 31 and an annular liquid receiving groove 32; the annular liquid receiving groove 32 is arranged on the periphery of the circular placing groove 31; the bottom of the protective cylinder 1 is arranged in the annular liquid receiving groove 32; the cover plate 2 covers the bevel 11, and a container to be tested (such as a beaker) is placed in the placing circular groove 31 when in use.
In order to completely cover the bevel opening 11, the area of the cover plate 2 is larger than that of the bevel opening 11; the utility model discloses an apron 2 is the rectangle, and dog 12 is the rectangle.
The utility model discloses specific use as follows: as shown in fig. 8, when in use, the bottom of the protective cylinder 1 is placed in the annular liquid receiving groove 32, a container to be tested (such as a beaker) is placed in the circular placing groove 31, the opening 21 of the cover plate 2 is placed opposite to the stop block, and the curved stop edge 22 is arranged at the upper end of the opening 21, so that the inclined opening 11 can be well sealed by the cover plate 2; finally, placing the beaker in the protective cylinder body 1 and the cover plate 2; and need heat the beaker in the base among the experimental determination process, the back is heated owing to protection barrel 1 is inside to be heated, and the air can flow upwards after being heated to the internal pressure of protection barrel 1 will be higher than the external world, so during external air can not get into the container, causes the pollution to the sample, thereby avoids the air to get into in the sample well.
Finally, it should be noted that the contents not described in detail in the specification belong to the prior art known to those skilled in the art, and those skilled in the art can implement the contents without creative efforts, so that the details are not described herein.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.
Claims (5)
1. A pretreatment evaporation drying device for reducing air lead pollution is characterized by comprising a protective cylinder body (1), a cover plate (2) and a base (3); the protective cylinder body (1) is a hollow cylindrical cylinder body, and the top of the protective cylinder body is provided with an inclined opening (11); a stop block (12) is arranged at the lowest part of the bevel opening (11); an opening (21) corresponding to the stop block (12) is formed in one end of the cover plate (2), and a curved surface flange (22) is arranged at the upper end of the opening (21); the base (3) comprises a circular placing groove (31) and an annular liquid receiving groove (32); the annular liquid receiving groove (32) is arranged on the periphery of the circular placing groove (31); the bottom of the protective cylinder body (1) is placed in the annular liquid receiving groove (32); the cover plate (2) covers the bevel opening (11).
2. The pretreatment drying device for reducing air lead pollution according to claim 1, wherein the area of the cover plate (2) is larger than that of the bevel opening (11).
3. The pretreatment drying device for reducing air lead pollution according to claim 1, wherein the cover plate (2) is rectangular.
4. The pretreatment evaporation drying device for reducing air lead pollution according to claim 1, wherein the inclined angle of the inclined opening (11) is 60-75 degrees.
5. The pretreatment drying device for reducing air lead pollution according to claim 1, wherein the stopper (12) is rectangular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021534833.3U CN212932141U (en) | 2020-07-29 | 2020-07-29 | Pretreatment evaporation drying device for reducing air lead pollution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021534833.3U CN212932141U (en) | 2020-07-29 | 2020-07-29 | Pretreatment evaporation drying device for reducing air lead pollution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212932141U true CN212932141U (en) | 2021-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021534833.3U Active CN212932141U (en) | 2020-07-29 | 2020-07-29 | Pretreatment evaporation drying device for reducing air lead pollution |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212932141U (en) |
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2020
- 2020-07-29 CN CN202021534833.3U patent/CN212932141U/en active Active
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