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Device and method for gas-liquid fluidization exploitation of old goaf slime water

A technology for old gobs and conversion devices, applied in coal gasification, preparation of liquid hydrocarbon mixtures, mining fluids, etc., can solve problems such as waste of coal slime and water resources

Active Publication Date: 2020-05-22
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims to provide a device and method for coal slime water-gas-liquid fluidized mining in the old empty area, so as to solve the problem of waste of coal slime water resources

Method used

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  • Device and method for gas-liquid fluidization exploitation of old goaf slime water
  • Device and method for gas-liquid fluidization exploitation of old goaf slime water
  • Device and method for gas-liquid fluidization exploitation of old goaf slime water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] The above-mentioned equipment for coal slime water-gas-liquid fluidized mining in the old empty area was used to conduct experiments on the conversion efficiency of coal slime at different temperatures. The experimental steps are as follows:

[0057] Step 1: Determine the experimental plan; assume that the experimental pressure is 5 atmospheres, no catalyst is added, and the experimental material comes from the coal slime water in the old empty area whose coal quality is lignite. The temperature is controlled by computer, and multiple experiments are carried out.

[0058] Step 2, sample preparation; sample preparation 0.5 cubic meters of coal slime water.

[0059] Step 3, air tightness inspection; connect the experimental devices in order, generate a certain amount of steam through the heater, and judge the air tightness by observing the value change of the pressure sensor on the slime water-gas liquefaction conversion box. If there is almost no change in the value of ...

Embodiment 2

[0071] The above-mentioned device for coal slime water-gas-liquid fluidized mining in the old empty area was used to conduct experiments on the conversion efficiency of coal slime under different pressures. The experimental steps are as follows:

[0072] Step 1: Determine the experimental plan; assume that the experimental temperature is 400°C, no catalyst is added, and the experimental material comes from the coal slime water in the old empty area whose coal quality is lignite. The pressure is controlled by computer, and multiple experiments are carried out.

[0073] Step 2, sample preparation; sample preparation 0.5 cubic meters of coal slime water.

[0074] Step 3, air tightness inspection; connect the experimental devices in order, generate a certain amount of steam through the heater, and judge the air tightness by observing the value change of the pressure sensor on the slime water-gas liquefaction conversion box. If there is almost no change in the value of the pressur...

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Abstract

The invention discloses a device and method for gas-liquid fluidization exploitation of old goaf slime water. The device comprises a superheated steam device, a slime water gasification-liquidation converting device, a gasification-liquidation product collecting device and a control device. The control device comprises a temperature control device, a pressure control device, a pressure and temperature coordinating device and a computer. The superheated steam device is composed of a water tank, a water supply pipeline, a heater and a steam pipeline. The slime water gasification-liquidation converting device comprises a slime water gasification-liquidation converting box. The gasification-liquidation product collecting device comprises an oil collecting device and a mixed gas collecting device. The temperature control device is located inside the heater. The pressure control device is located in the slime water gasification-liquidation converting box. The temperature and pressure coordinating device comprises a gas pump. The computer is connected with the slime water gasification-liquidation converting box and the heater. With the old goaf slime water as the research object, the device and method achieve a slime water gas-liquid fluidization exploitation experiment under the conditions of a given temperature, a given pressure and a given coal grade.

Description

technical field [0001] The invention belongs to the technical field of coal-to-oil and coal-to-gas, and in particular relates to a device and method for coal slime water-gas-liquid fluidized mining in an old empty area. Background technique [0002] Coal liquefaction is an industrial technology that converts coal in a solid state to hydrogenation reaction under the action of a certain temperature and pressure and a catalyst, and directly converts coal into liquid oil. It is one of the important technologies for efficient and clean utilization of coal. [0003] Coal gasification, at a certain temperature and pressure, the organic matter in the coal is subjected to thermochemical processing with gasification agents such as steam, air or oxygen, and the solid coal is converted into combustible gases such as CO, oxygen, methane and non-combustible gases such as carbon dioxide and nitrogen. Gas synthesizer process. [0004] Due to the problem of coal mining technology, there is...

Claims

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Application Information

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IPC IPC(8): E21B43/00E21B43/295E21B43/34C10G1/00C10J3/00G01N33/22
CPCC10G1/00C10J3/00E21B43/00E21B43/295E21B43/34G01N33/22G01N33/222G01N33/225
Inventor 姜海纳宋晓杰崔蛟林郝尉凯
Owner TAIYUAN UNIV OF TECH
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