CN107228808B - Construction site dust pollution detection device and detection method thereof - Google Patents
Construction site dust pollution detection device and detection method thereof Download PDFInfo
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- CN107228808B CN107228808B CN201710458920.1A CN201710458920A CN107228808B CN 107228808 B CN107228808 B CN 107228808B CN 201710458920 A CN201710458920 A CN 201710458920A CN 107228808 B CN107228808 B CN 107228808B
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- 239000000428 dust Substances 0.000 title claims abstract description 96
- 238000001514 detection method Methods 0.000 title claims abstract description 31
- 238000010276 construction Methods 0.000 title claims abstract description 27
- 238000005303 weighing Methods 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 12
- 239000002244 precipitate Substances 0.000 claims description 7
- 238000012935 Averaging Methods 0.000 claims description 5
- 238000005259 measurement Methods 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 4
- 230000008021 deposition Effects 0.000 claims description 3
- 239000003814 drug Substances 0.000 claims description 3
- 229940079593 drug Drugs 0.000 claims description 3
- 230000000007 visual effect Effects 0.000 claims description 3
- 239000013049 sediment Substances 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 230000003068 static effect Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000012780 transparent material Substances 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005250 beta ray Effects 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000006467 substitution reaction Methods 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
- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/04—Investigating sedimentation of particle suspensions
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Abstract
A construction site dust pollution detection device and a detection method thereof belong to the technical field of green construction of constructional engineering. The invention mainly solves the technical problems of complex equipment, large environmental influence, high cost and complex operation of the existing dust detection equipment. The solution is as follows: the collecting device comprises a first collecting device with a rectangular opening and a second collecting device with a circular opening, the openings of the first collecting device and the second collecting device are horizontally placed and have the same opening area, the first collecting device is arranged on one side of the upper surface of the base, the second collecting device is arranged on the other side of the upper surface of the base, and leveling bubbles are arranged in the middle of the base; the film collecting bag, the supporting sleeve and the collecting measuring bucket are arranged in the collecting device. The device is arranged on a construction site, the thickness of the collected dust sediment can be visually read through scales after the device is leveled and is static, and the thickness of the dust collected at an opening with a certain area at the upper end of the collecting part can be determined more accurately by weighing the mass of the dust.
Description
Technical Field
The invention belongs to the technical field of green construction of constructional engineering, and particularly relates to a construction site dust pollution detection device and a detection method thereof.
Background
At present, various devices and methods are used for detecting dust, and in recent years, novel rapid dust detectors such as a light scattering type, an β ray type, a piezoelectric type and the like have been developed on the basis of original production of electrostatic dust detectors and extinction method dust detectors.
Disclosure of Invention
The invention aims to overcome the defects and detection blind spots in the prior art, provides a construction site dust pollution detection device and a detection method thereof, accurately measures the dust pollution amount generated in the construction process, and solves the technical problems of complex equipment, large environmental influence, high cost and complex operation of the conventional dust detection equipment.
The invention is realized by the following technical scheme.
The utility model provides a job site dust pollution detection device, it includes that the film collects bag, support sleeve and collects the measuring hopper, wherein: the collecting device comprises a first collecting device with a rectangular opening and a second collecting device with a circular opening, the openings of the first collecting device and the second collecting device are horizontally arranged, the areas of the openings are the same and are S, the first collecting device is arranged on one side of the upper surface of the base, and the second collecting device is arranged on the other side of the upper surface of the base; a leveling bubble is arranged in the middle of the upper surface of the base;
the film collecting bag is covered outside the supporting sleeve and clings to the outer side wall of the supporting sleeve, the film collecting bag and the supporting sleeve are arranged in the collecting device together, the outer side surface of the film collecting bag clings to the inner wall of the collecting device, the opening part at the upper end of the film collecting bag is turned outwards and fixed on the outer side wall of the opening part at the upper end of the collecting device through an elastic hoop, a mounting groove is arranged on the outer side wall of the opening part at the upper end of the collecting device corresponding to the elastic hoop, and the collecting measuring hopper is arranged in the supporting sleeve;
the upper portion of the collecting and measuring hopper is provided with a collecting portion, the lower portion of the collecting and measuring hopper is provided with a measuring portion, the upper end face of the collecting portion and the opening at the upper end of the collecting device are identical in shape and size, the collecting portion is detachably erected at the opening of the collecting device, a gauze is detachably arranged above the opening at the upper end of the collecting portion, the area of the upper end face of the collecting portion is α times of the area of the bottom of the lower end face of the measuring portion, α is a positive integer, the diameter of the cross section of the measuring portion is linearly reduced from top to bottom, the lower end face of the measuring portion is arranged at the bottom of the collecting device, the lower end face of the measuring portion is sealed, the side wall, close to one side of the supporting sleeve, of the measuring portion is tightly attached to the inner wall of the supporting sleeve, scales which are changed from bottom to top in density are arranged on the side wall, located on the attaching portion of the measuring portion.
Furthermore, the collecting and measuring hopper, the collecting device, the supporting sleeve and the film collecting bag are all made of antistatic transparent materials.
Furthermore, the position of the upper surface of the base corresponding to the position of the collecting device is also provided with a pit with the same size and shape as the bottom surface of the collecting device.
Further, the area of the upper end surface of the collecting part is 10 times of the area of the bottom surface of the lower end of the measuring part.
A construction site dust pollution detection method comprises the following steps:
1) and installing a dust pollution detection device on a construction site: firstly, a supporting sleeve is put into the film collecting bag, a collecting and measuring hopper is put into the supporting sleeve, a gauze is arranged above the collecting part, and the weight of the whole of the gauze, the film collecting bag, the supporting sleeve and the collecting and measuring hopper is mabWherein a is 1, 2, …, n, which means position 1, position 2, …, position n, b is 1 or b is 2, b is 1 means a collecting means one, and b is 2 means a collecting means two; then, fixing the opening part at the upper end of the film collecting bag in a mounting groove at the upper end of the outer wall of the collecting device through an elastic hoop so that the film collecting bag is tightly attached between the outer side wall of the supporting sleeve and the inner wall of the collecting device; finally, mounting the collecting device on a base;
2) visual reading of the dust deposition thickness of the construction site: place job site dust pollution detection device respectively in the building position that needs carry out dust detection, adjustment level bubble makes the whole level state that is in of device, after certain time' S dust is collected, slightly tremble the base, collect the dust in the collection portion to the measuring portion, obtain through the scale with the thickness of the dust that collects of collection portion upper end certain area S opening part, and with the thickness h of the dust of collecting device a unit interval collection of same position department1The thickness h of the dust collected in the second collecting device per unit time2Carry out averagingObtaining an average thickness of the dust collected per unit time at the position of
Namely the thickness of the dust collected at the opening with a certain area S at the upper end of the collecting part is
3) And weighing the deposited weight of the dust on the construction site: firstly, removing large-particle dust on the surface of a gauze, and taking out the gauze, a film collecting bag, an elastic hoop, a supporting sleeve, a collecting and measuring hopper and a collecting device from a support integrally; secondly, taking out the gauze, the film collecting bag, the elastic hoop, the supporting sleeve and the collecting and measuring bucket from the collecting device; thirdly, removing the elastic hoop, measuring the weight of the gauze, the film collecting bag, the supporting sleeve, the collecting and measuring hopper and the whole body after dust collection to be m'abWeight m of the whole dust not collectedabAs a comparison, the weight of the collected dust per unit time was obtained as Δ mab＝m′ab-mabWherein a is 1, 2, …, n, which means position 1, position 2, …, position n, b is 1 or b is 2, b is 1 means a collecting means one, and b is 2 means a collecting means two; finally, the weight Δ m of the dust collected per unit time by the collecting device at the same positiona1And the weight Deltam of the dust collected in the second collecting device per unit timea2Averaging to obtain the average weight of the dust collected at the position per unit time
Comprises the following steps:
4) the weighing method determines the exact thickness of the obtained dust precipitate: measuring the bulk density of the collected dust precipitate in the natural state with a laboratory standard graduated test tube to give a density γ, obtained in step 3)
The following can be obtained:thenWherein V is the mass measured in step 3) of
The accurate thickness value of the dust deposit collected at the opening with a certain area S in the collection part is hQuasi-drug＝V/S。
Compared with the prior art, the invention has the following beneficial effects.
The film collecting bag, the collecting and measuring hopper, the supporting sleeve and the collecting device are all made of common transparent antistatic materials, so that the film collecting bag is simple and convenient to manufacture, and the cost is low; the gauze arranged at the opening at the upper end of the measuring hopper is collected, so that the influence of large-particle impurities on detection can be avoided, and meanwhile, the collected dust precipitate can be prevented from separating from the collecting device; scales are arranged on a measuring part of the collecting and measuring hopper, and the thickness of the dust sediment collected within a certain time can be directly and quickly read by an observation method; in the dust weight determination process, the film collecting bag, the collecting and measuring hopper, the dust in the collecting device, the supporting sleeve and the gauze are taken out integrally, the weights of the whole body before and after measurement are respectively weighed by using an electronic balance, the operation is convenient, and the accuracy is high; the rectangular open collecting device and the round open collecting device are arranged at the same time, so that the measuring precision is improved, and the influence on the dust collecting precision due to different opening shapes is reduced; this device only needs to wash the gauze and measure the collection fill after the measurement is accomplished and dry and can reuse, and the practicality is strong. The invention provides a more scientific and simple method for detecting the accumulation amount of dust sediments on a construction site.
Compared with the prior art, the method has the advantages of accurate measurement result, lower cost, moderate operation difficulty, easy popularization and use in construction sites and the like.
Drawings
Fig. 1 is a partial cross-sectional view of the overall structure of the present invention.
Fig. 2 is a schematic top view of the overall structure of the present invention.
Detailed Description
The present invention will be described in detail with reference to the following examples: in this embodiment, the technical solution of the present invention is used as a precondition for implementation, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
As shown in fig. 1 and 2, the construction site dust pollution detecting apparatus of the present embodiment includes a film collecting bag 3, a supporting sleeve 4, and a collecting measuring hopper 7, wherein: the collecting device 2 comprises a first collecting device with a rectangular opening and a second collecting device with a circular opening, the openings of the first collecting device and the second collecting device are horizontally arranged, the opening areas of the first collecting device and the second collecting device are the same and are S, the first collecting device is arranged on one side of the upper surface of the base 1, and the second collecting device is arranged on the other side of the upper surface of the base 1; a leveling bubble 9 is arranged in the middle of the upper surface of the base 1;
the film collecting bag 3 is coated outside the supporting sleeve 4 and is tightly attached to the outer side wall of the supporting sleeve 4, the film collecting bag 3 and the supporting sleeve 4 are arranged in the collecting device 2 together, the outer side surface of the film collecting bag 3 is tightly attached to the inner wall of the collecting device 2, the opening part at the upper end of the film collecting bag 3 is outwards turned over and is fixed on the outer side wall of the opening part at the upper end of the collecting device 2 through the elastic hoop 5, a mounting groove is formed in the outer side wall of the opening part at the upper end of the collecting device 2, which corresponds to the elastic hoop 5, and the collecting measuring hopper 7 is arranged in the supporting sleeve 4;
the upper portion of the collecting and measuring hopper 7 is provided with a collecting portion 71, the lower portion of the collecting and measuring hopper 7 is provided with a measuring portion 72, the shape and the size of the upper end face of the collecting portion 71 are identical to those of the opening at the upper end of the collecting device 2, the collecting portion 71 is detachably erected at the opening of the collecting device 2, a gauze 6 is detachably arranged above the opening at the upper end of the collecting portion 71, the area of the upper end face of the collecting portion 71 is α times of the area of the bottom of the lower end face of the measuring portion 72, α is a positive integer, the diameter of the cross section of the measuring portion 72 is linearly reduced from top to bottom, the lower end face of the measuring portion 72 is arranged at the bottom of the collecting device 2, the lower end face of the measuring portion 72 is sealed, the side wall, close to one side of the supporting sleeve 4, of the measuring portion 72 is tightly attached to the inner wall of the supporting sleeve 4, graduations 8 which are gradually increased from bottom to top are arranged on the side wall, the graduations 8 indicate the thickness of.
Further, the collecting and measuring funnel 7, the collecting device 2, the supporting sleeve 4 and the film collecting bag 3 are all made of antistatic transparent materials.
Furthermore, a pit with the same size and shape as the bottom surface of the collecting device 2 is also arranged on the upper surface of the base 1 corresponding to the position of the collecting device 2.
Further, the area of the upper end surface of the collecting portion 71 is 10 times the area of the bottom surface of the lower end of the measuring portion 72.
A construction site dust pollution detection method comprises the following steps:
1) and installing a dust pollution detection device on a construction site: first, the support sleeve 4 is put into the film collection bag 3, the collection measuring funnel 7 is put into the support sleeve 4, the gauze 6 is installed above the collection part 71, and the weight of the whole of the measurement gauze 6, the film collection bag 3, the support sleeve 4 and the collection measuring funnel 7 is mabWherein a is 1, 2, …, n, which means position 1, position 2, …, position n, b is 1 or b is 2, b is 1 means a collecting means one, and b is 2 means a collecting means two; then, fixing the opening part at the upper end of the film collecting bag 3 in the mounting groove at the upper end of the outer wall of the collecting device 2 through the elastic hoop 5, so that the film collecting bag 3 is tightly attached between the outer side wall of the supporting sleeve 4 and the inner wall of the collecting device 2; finally, the collecting device 2 is arranged on the base 1;
2) visual reading of the dust deposition thickness of the construction site: the construction site dust pollution detection device is respectively arranged at the position of a building needing dust detection, and the leveling bubble 9 is adjusted to ensure that the whole device is in a horizontal state after a certain period of timeAfter the dust is collected, the base 1 is slightly shaken to collect the dust in the collecting part 71 into the measuring part 72, the thickness of the dust collected at the opening with a certain area S at the upper end of the collecting part 71 is obtained through the scale 8, and the thickness h of the dust collected by the collecting device at the same position in unit time is measured1The thickness h of the dust collected in the second collecting device per unit time2Averaging is performed to obtain an average thickness of the dust collected per unit time at the location of
That is, the thickness of the dust collected at the opening of the certain area S at the upper end of the collecting part 71 is
3) And weighing the deposited weight of the dust on the construction site: firstly, removing large-particle dust on the surface of a gauze 6, and taking out the gauze 6, a film collecting bag 3, an elastic hoop 5, a supporting sleeve 4, a collecting and measuring hopper 7 and a collecting device 2 from a support 1 integrally; secondly, taking out the gauze 6, the film collecting bag 3, the elastic hoop 5, the supporting sleeve 4 and the collecting and measuring hopper 7 from the collecting device 2; thirdly, the elastic hoop 5 is removed, and the weight of the whole of the measuring gauze 6, the film collecting bag 3, the supporting sleeve 4, the collecting measuring hopper 7 and the collected dust is m'abWeight m of the whole dust not collectedabAs a comparison, the weight of the collected dust per unit time was obtained as Δ mab＝m′ab-mabWherein a is 1, 2, …, n, which means position 1, position 2, …, position n, b is 1 or b is 2, b is 1 means a collecting means one, and b is 2 means a collecting means two; finally, the weight Δ m of the dust collected per unit time by the collecting device at the same positiona1And the weight Deltam of the dust collected in the second collecting device per unit timea2Averaging to obtain the average weight of the dust collected at the position per unit time
Comprises the following steps:
4) the weighing method determines the exact thickness of the obtained dust precipitate: measuring the bulk density of the collected dust precipitate in the natural state with a laboratory standard graduated test tube to give a density γ, obtained in step 3)The following can be obtained:
then
Wherein V is the mass measured in step 3) of
The accurate thickness value of the dust deposit at the opening with a certain area S in the collecting part 72 is hQuasi-drug＝V/S。
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (4)
1. The utility model provides a job site dust pollution detection device, it includes that bag (3), support sleeve (4) and collection measuring hopper (7) are collected to the film, its characterized in that: the collecting device (2) comprises a first collecting device with a rectangular opening and a second collecting device with a circular opening, the openings of the first collecting device and the second collecting device are horizontally arranged, the opening areas of the first collecting device and the second collecting device are the same and are S, the first collecting device is arranged on one side of the upper surface of the base (1), the second collecting device is arranged on the other side of the upper surface of the base (1), and a leveling bubble (9) is arranged in the middle of the upper surface of the base (1);
the film collecting bag (3) is coated outside the supporting sleeve (4) and is tightly attached to the outer side wall of the supporting sleeve (4), the film collecting bag (3) and the supporting sleeve (4) are arranged in the collecting device (2) together, the outer side face of the film collecting bag (3) is tightly attached to the inner wall of the collecting device (2), the opening part of the upper end of the film collecting bag (3) is outwards turned over and is fixed on the outer side wall of the opening part of the upper end of the collecting device (2) through the elastic hoop (5), a mounting groove is formed in the outer side wall of the opening part of the upper end of the collecting device (2) corresponding to the elastic hoop (5), and the collecting and measuring hopper (7) is arranged in the supporting sleeve (4);
the upper portion of the collecting and measuring hopper (7) is provided with a collecting portion (71), the lower portion of the collecting and measuring hopper (7) is provided with a measuring portion (72), the collecting portion (71) is detachably erected at an opening of the collecting device (2), the shape and the size of the upper end face of the collecting portion (71) are identical to those of an opening at the upper end of the collecting device (2), a gauze (6) is detachably arranged above the opening at the upper end of the collecting portion (71), the area of the upper end face of the collecting portion (71) is α times of the area of the bottom of the lower end face of the measuring portion (72), wherein α is a positive integer, the diameter of the cross section of the measuring portion (72) is linearly reduced from top to bottom, the lower end face of the measuring portion (72) is arranged at the bottom of the collecting device (2), the lower end face of the measuring portion (72) is sealed, the side wall, close to one side of the supporting sleeve (4), of the measuring portion (72) is tightly attached to the inner wall of the supporting sleeve (4), the side wall, the measuring portion (72) is arranged on the side wall of the portion, which is attached to the supporting sleeve (4), the measuring portion (72), the side wall is provided with the scale, the scale from bottom to the scale 8), the transparent collecting portion, the transparent film is made of the collecting portion (7), the dust collecting portion (7), the transparent.
2. The construction site dust pollution detection device according to claim 1, wherein: the upper surface of the base (1) is provided with a pit with the same size and shape as the bottom surface of the collecting device (2) at the position corresponding to the collecting device (2).
3. The construction site dust pollution detection device according to claim 1, wherein: the area of the upper end surface of the collecting part (71) is 10 times of the area of the bottom surface of the lower end of the measuring part (72).
4. A detection method of the dust pollution detection device at the construction site according to claim 1, characterized in that: the method comprises the following steps:
1) and installing a dust pollution detection device on a construction site: firstly, a supporting sleeve (4) is placed into a film collecting bag (3), a collecting and measuring hopper (7) is placed into the supporting sleeve (4), a gauze (6) is arranged above a collecting part (71), and the weight of the whole of the gauze (6), the film collecting bag (3), the supporting sleeve (4) and the collecting and measuring hopper (7) is mabWherein a is 1, 2, …, n, which means position 1, position 2, …, position n, b is 1 or b is 2, b is 1 means a collecting means one, and b is 2 means a collecting means two; then, fixing the opening part at the upper end of the film collecting bag (3) in a mounting groove at the upper end of the outer wall of the collecting device (2) through an elastic hoop (5) to enable the film collecting bag (3) to be tightly attached between the outer side wall of the supporting sleeve (4) and the inner wall of the collecting device (2); finally, the collecting device (2) is arranged on the base (1);
2) visual reading of the dust deposition thickness of the construction site: place job site dust pollution detection device respectively in the position that needs carry out dust detection in the building, adjustment level bubble (9) make the whole level state that is in of device, after the dust of a set time is collected, shake base (1) slightly, collect the dust in collection portion (71) to measurement portion (72), obtain through scale (8) with the thickness of the dust of collecting that the certain area S opening part in collection portion (71) upper end was collected, and with the thickness h of the dust of collecting in a unit time of the collection device of same position department1The thickness h of the dust collected in the second collecting device per unit time2Averaging is performed to obtain an average thickness of the dust collected per unit time at the location of
I.e. a certain area S of the upper end of the collecting part (71)The thickness of the dust collected at the mouth is
3) And weighing the deposited weight of the dust on the construction site: firstly, removing large-particle dust on the surface of a gauze (6), and taking out the gauze (6), a film collecting bag (3), an elastic hoop (5), a supporting sleeve (4), a collecting measuring hopper (7) and a collecting device (2) from a support (1) integrally; secondly, taking out the gauze (6), the film collecting bag (3), the elastic hoop (5), the supporting sleeve (4) and the collecting and measuring hopper (7) from the collecting device (2) integrally; thirdly, removing the elastic hoop (5), and measuring the weight of the gauze (6), the film collecting bag (3), the supporting sleeve (4), the collecting and measuring hopper (7) and the whole collected dust to be m'abWeight m of the whole dust not collectedabAs a comparison, the weight of the collected dust per unit time was obtained as Δ mab＝m′ab-mabWherein a is 1, 2, …, n, which means position 1, position 2, …, position n, b is 1 or b is 2, b is 1 means a collecting means one, and b is 2 means a collecting means two; finally, the weight Δ m of the dust collected per unit time by the collecting device at the same positiona1And the weight Deltam of the dust collected in the second collecting device per unit timea2Averaging to obtain the average weight of the dust collected at the position per unit time
Comprises the following steps:
4) the weighing method determines the exact thickness of the obtained dust precipitate: measuring the bulk density of the collected dust precipitate in the natural state with a laboratory standard graduated test tube to give a density γ, obtained in step 3)
The following can be obtained:
thenWherein V is the mass measured in step 3) of
The accurate thickness value of the dust deposit collected at the opening with a certain area S in the collecting part (72) is hQuasi-drug＝V/S。
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710458920.1A CN107228808B (en) | 2017-06-16 | 2017-06-16 | Construction site dust pollution detection device and detection method thereof |
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| CN201710458920.1A CN107228808B (en) | 2017-06-16 | 2017-06-16 | Construction site dust pollution detection device and detection method thereof |
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| CN107228808B true CN107228808B (en) | 2020-02-14 |
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| CN107741375B (en) * | 2017-10-20 | 2020-10-23 | 中煤科工集团重庆研究院有限公司 | Dust deposition detection sensing unit, system and method |
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2017
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| Publication number | Publication date |
|---|---|
| CN107228808A (en) | 2017-10-03 |
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