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Apparatus and method for uniformly mixing ice powder and sand or soil

A technology of uniform mixing and ice powder, applied in the preparation of test samples, etc., can solve the problem of difficulty in obtaining samples, and achieve the effect of simple and efficient method.

Active Publication Date: 2019-08-16
DALIAN UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One of the important tasks of carrying out simulation experiments is to reshape the sediment environment where hydrates occur, but it is difficult for laboratories to obtain samples with uniform distribution of hydrates in sediments

Method used

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  • Apparatus and method for uniformly mixing ice powder and sand or soil
  • Apparatus and method for uniformly mixing ice powder and sand or soil
  • Apparatus and method for uniformly mixing ice powder and sand or soil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment one, refer to figure 1 , the present embodiment proposes a device for evenly mixing ice powder and sand, including an adjustable-speed rotator 1, a stainless steel container 2, a filter screen 3, an atomizing nozzle 5, a ventilation hole 6, a protective cover 7, a constant flow Pump 8, water cup 9 and mass scale 10.

[0029] The stainless steel container 2 includes a stainless steel container main body and an upper cover 4, the bottom of the stainless steel container main body is connected with the adjustable speed rotator 1 through a slot, and a filter screen 3 is placed in the upper groove; the stainless steel container 2 An atomizing nozzle 5 is installed in the middle of the upper cover 4 .

[0030] A protective cover 7 is provided at the contact between the outside of the atomizing nozzle 5 and the filter screen 3; the atomizing nozzle 5 is connected to the outlet of the constant flow pump 8 through a pipeline, and the inlet of the constant flow pump 8 ...

Embodiment 2

[0035] Embodiment 2, this embodiment proposes a method for evenly mixing ice powder and sand, combining figure 1 The specific steps are described as follows:

[0036] (1) Place the stainless steel container 2 on the adjustable speed rotator 1, open the upper cover 4 of the stainless steel container 2, remove the filter screen 3, pour an appropriate amount of liquid nitrogen into the stainless steel container 2, and install the filter screen in sequence 3. Atomizing nozzle 5 and its protective cover 7;

[0037] (2) After the filter screen 3 is pre-cooled with liquid nitrogen, pour an appropriate amount of dry sand (or soil) into the filter screen 3, and spread it evenly, and then install the upper cover 4 of the stainless steel container 2;

[0038] (3) Pour secondary deionized distilled water into the water cup 9, and weigh the quality with a mass balance 10;

[0039] (4) Start the adjustable speed rotator 1 first, and the filter screen 3 moves and rotates under the drive of...

Embodiment 3

[0043] Embodiment three, this embodiment proposes a method for evenly mixing ice powder and sand, the difference from embodiment two lies in steps (3), (4) and (5), also refer to figure 1 ,Described as follows:

[0044] In step (1), liquid nitrogen is not poured into the stainless steel container 2; the steps (4) and (5) are carried out simultaneously, that is, the speed-adjustable rotator 1 and the constant-flow pump 8 are opened simultaneously to realize sand screening (or soil) and atomized water droplets in the simultaneous process, the atomized water droplets and sand (or soil) are evenly mixed, which can be used to prepare samples containing uniformly dispersed low-saturation gas hydrate in sediments.

[0045] In the method for uniform mixing of ice powder and sand, by adjusting the speed and time of the constant flow pump 8 and the speed-adjustable rotator 1, the mixture of atomized water droplets and dried sand (or soil) can be obtained. Proportion.

[0046] Other step...

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Abstract

The present invention provides an apparatus and a method for uniformly mixing ice powder and sand or soil. The apparatus comprises an adjustable-speed rotator, a stainless steel container, a filter screen, an atomizing nozzle, a vent hole, a protective cover, a constant flow pump, a water cup and a mass balance. The bottom of the stainless steel container body is connected with the adjustable-speed rotator through the card slot, and the filter screen is arranged in the upper groove of the stainless steel container body; the atomizing nozzle is arranged in the middle of the upper cover; the outer part of the atomizing nozzle is provided with a protective cover; and the atomizing nozzle is connected with the constant flow pump outlet, and the constant flow pump inlet is connected with a water cup on the mass balance through the pipeline. According to the apparatus provided by the present invention, micron-sized atomized water droplets are obtained through the atomizing nozzle; if liquidnitrogen is poured into the stainless steel container, the water droplets will fall into liquid nitrogen to become ice powder; and sand and soil within the desired particle size range can be obtainedby using the filter screen. According to the apparatus provided by the present invention, ice powder or atomized water droplets are prepared and sand or soil of a desired particle size is screened inthe rotating stainless steel container, and uniform mixing of ice powder or atomized water droplets with sand or soil is realized.

Description

technical field [0001] The invention belongs to the technical field of sample preparation for uniform mixing of materials, in particular to a device and method for uniform mixing of ice powder and sand. Background technique [0002] Natural gas hydrate is a non-stoichiometric clathrate compound formed by gas and water at low temperature and high pressure. Under standard conditions, a unit volume of gas hydrate can store 164 units of methane gas, so it is considered to be one of the most promising new energy sources. However, the commercial production level of natural gas hydrate has not yet been reached, and the simulation experiment of natural gas hydrate production in the laboratory can provide reference and guidance for its field trial production. [0003] From the perspective of the global distribution of gas hydrates, the proven gas hydrate resources are mainly found in the seabed sediments in the shallow sea shelf and slope area and in the pores of various clastic sed...

Claims

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Application Information

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IPC IPC(8): G01N1/38
CPCG01N1/38
Inventor 宋永臣赵洁杨明军
Owner DALIAN UNIV OF TECH
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