Device for hydro-mechanical characteristic test sampling and harmful gas cutting efficiency test

A technology for characteristic testing and harmful gas, which is applied in the preparation of test samples, soil material testing, material inspection products, etc. Problems such as parameter error estimation, etc., to achieve the effect of simple operation, easy production of materials, simple sample preparation method and production process

Active Publication Date: 2019-12-27
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the hydro-mechanical properties of the overlying soil of the landfill and the harmful landfill gas adsorption and biological oxidation tests of the overlying layer are mostly short-term tests, which assume that the physical and chemical properties of the overlying soil remain stable. Consider its change over time
In reality, with the advancement of the service period of the landfill and the influence of the external environment, the physical and chemical properties of the overlying soil (such as density, pH value, pore structure, surface functional groups, etc.) change dynamically. Dynamic changes will reduce the function of the overlying soil, resulting in wrong estimation of the design parameters of the overlying soil

Method used

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  • Device for hydro-mechanical characteristic test sampling and harmful gas cutting efficiency test
  • Device for hydro-mechanical characteristic test sampling and harmful gas cutting efficiency test
  • Device for hydro-mechanical characteristic test sampling and harmful gas cutting efficiency test

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] see Figure 1~Figure 9 , the water-mechanical characteristic test sample preparation and harmful gas reduction efficiency test device, including compressed air source A, gas storage tank B, gas flow meter C, stop valve D, safety valve E and simulated gas source F, is characterized in that: The compressed air source A passes through the gas storage tank B and the gas flow meter A C 1 Parallel through several cut-off valves A D 1 Connect 6 function one test chambers I and n-1 function two test chambers II-n; the bottom of the function one test room I and n-1 function two test chambers II-n have ports through n stop valves respectively B D 2 After parallel connection, pass through a stop valve C D 3 Connect the simulated gas source F, and their left sides respectively have ports through a gas flow meter BC 2 Connected to a safety valve E, the tops of n-1 function two test chambers II-n are respectively connected to a shut-off valve D 4 .

Embodiment 2

[0035] This embodiment is basically the same as Embodiment 1, and the special features are as follows:

[0036]The first function test room and the second function test room are composed of an outer support, a base, a function first test room and a second function test room, and an air cavity. The outer support includes circular aluminum alloy bottom plates 2 and 21, threaded screw rods 4 and 23, annular aluminum alloy top plates 8 and 26 and nuts 9 and 27; the circular aluminum alloy bottom plates 2 and 21, annular aluminum alloy top plates 8 and 26, four bolt holes are respectively arranged around it, and the bolt holes of the base plate and the top plate correspond one by one; the screw rods 4 and 23 are full-thread screw rods, and are fixed in the screw holes of the circular aluminum alloy base plates 2 and 21, By changing nuts 9 and 27, adjust the height of the annular top plate.

[0037] The base includes bases 3 and 22 with spiral grooves on the bottom and side walls 1...

experiment example 1

[0043] Carry out water-mechanical characteristics timeliness test preparation test, enable figure 1 Part I of the structure diagram.

[0044] Step 1: Place the bottom plate 2 on the workbench, place the base 3 with a concave groove on the bottom plate 2, install the four threaded screw rods 4 on the screw holes 38 respectively, and place the lower permeable stone 18 on the base 3 to ensure The permeable stone is just embedded in the concave groove of the base.

[0045] Step 2: After the lower permeable stone 18 is installed on the base, place an acrylic plastic side wall 15 above it, and then install a sample chamber 17 with several small sample cylinders 19 in the side wall 15. O-rings 6 are installed at the upper and lower parts to ensure the sealing between the side wall 15 and the sample chamber 17 . A scale 5 is installed on the side wall of the sample cylinder 17, which can be used to observe the variation of the sample height.

[0046] Step 3: apply sealing silicone ...

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PUM

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Abstract

The invention discloses a device for hydro-mechanical characteristic test sampling and harmful gas cutting efficiency test. The device for the hydro-mechanical characteristic test sampling and the harmful gas cutting efficiency test comprises a compressed air source, a gas storage tank, gas flowmeters, stop valves, a safety valve and a simulated gas source. The compressed air source is connected in parallel with the first gas flowmeter via the gas storage tank and is connected with six function-I test rooms and (n-1) function-II test rooms via a plurality of first stop valves; connectors are formed at the bottoms of the function-I test rooms and (n-1) function-II test rooms to be connected with the simulated gas source via one third stop valve after respectively being connected in parallelvia n second stop valves; connectors are respectively formed on the left sides of the function-I test rooms and (n-1) function-II test rooms to be connected to one safety valve via one second gas flowmeter; and connectors are respectively formed at the tops of the (n-1) function-II test rooms to be connected with one fourth stop valve. The device is simple and convenient in design, flexible to operate and good in integrality and can provide help for hydro-mechanical characteristic timeliness test sampling and landfill gas cutting timeliness test research of superstratum soil mass of a landfill.

Description

technical field [0001] The invention relates to a hydro-mechanical characteristic aging test sample preparation and harmful gas reduction time-effectiveness testing device, which can be applied to soil hydro-mechanical characteristic time-efficiency research and harmful gas reduction time-efficiency research in geotechnical engineering. Background technique [0002] In my country, the sanitary landfill of domestic waste is still the mainstream way to deal with domestic waste. However, a large amount of toxic and harmful gases released during the service of the landfill, such as methane will cause the greenhouse effect, and hydrogen sulfide has a foul smell, etc. The garbage problem has increasingly become a prominent problem that affects the quality of urban life and environmental protection, and needs to be resolved urgently. [0003] The landfill has a long service period. During the service period, the overlying soil is in a harsh environment, but its own performance requi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/28G01N33/24
CPCG01N1/28G01N33/24
Inventor 孙文静李明玉孔溢
Owner SHANGHAI UNIV
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