Small-grain-diameter lignite gasification device based on vacuum thermal decomposition and gasification method thereof

A small particle size, coal gasification technology, applied in the direction of granular/powdered fuel gasification, can solve the problems of low lignite gasification efficiency, complex production process, and low gas calorific value, and achieve environmental protection and safety. The effect of high combustion calorific value and low price

Active Publication Date: 2015-12-02
王晓峰 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims to solve the problems of low lignite gasification efficiency, high cost, complex production process, need for water, high-power electrical equipment, high pressure and high temperature, environmental pollution and low calorific value of the produced gas in the existing lignite gasification device and method. question

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  • Small-grain-diameter lignite gasification device based on vacuum thermal decomposition and gasification method thereof
  • Small-grain-diameter lignite gasification device based on vacuum thermal decomposition and gasification method thereof
  • Small-grain-diameter lignite gasification device based on vacuum thermal decomposition and gasification method thereof

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specific Embodiment approach 1

[0031] Specific implementation mode one: combine Figure 1 to Figure 3 Describe this embodiment, present embodiment comprises reactor 1 and furnace cylinder 1-1, offers a plurality of suction ports 11 along the circumferential direction on the upper outer side wall of reactor 1, furnace cylinder 1-1 is installed in reactor 1, And there is a gap between the outer wall of the furnace drum 1-1 and the inner wall of the reactor 1, which is characterized in that: it also includes a charging metering device 2, a full sealing cover 2-1, an intelligent valve 2-2, a first Sensor 3, second sensor 4, rotary ash removal tray 5, screw feeder 6, burner 7, flue 8, exhaust pipe 9 and steam pipe 12, fully sealed cover 2-1 is sealed and installed in reactor 1 The upper end of the top cover, the upper end of the full sealing cover 2-1 is connected with the charging metering device 2, the smart valve 2-2 is installed on the full sealing cover 2-1, the first sensor 3 and the second sensor 4 are in...

specific Embodiment approach 2

[0039] Specific implementation mode two: combination Figure 1 to Figure 3 Illustrate this embodiment, the present embodiment rotary ash removal tray 5 comprises ash removal motor 5-1, drive shaft 5-2, fire grate 5-4 and perforated plate 5-3, and perforated plate 5-3 is fixedly installed in reaction On the inner side wall of the device 1, the grate 5-4 is installed in the reactor 1 below the perforated plate 5-3, and the ash removal motor 5-1 is connected with the perforated plate 5-3 through the transmission shaft 5-2. Other compositions and connections are the same as in the first embodiment.

specific Embodiment approach 3

[0040] Specific implementation mode three: combination Figure 1 to Figure 3 Describe this embodiment, the screw feeder 6 of this embodiment comprises screw motor 6-1 and screw shaft 6-2, and screw feeder 6 communicates with the lower end of reactor 1, and the output end of screw motor 6-1 is connected with the screw shaft 6-2. Axis 6-2 connection. Other compositions and connections are the same as those in the second embodiment.

[0041] Specific implementation mode four: combination Figure 1 to Figure 3 Describe this embodiment, it also includes a burner air duct 7-1 in this embodiment, and the burner 7 is inserted into the rotary ash removal pan 5 through the side wall of the reactor 1 through the burner air duct 7-1. Other compositions and connections are the same as those in the third embodiment.

[0042] Specific implementation mode five: combination Figure 1 to Figure 3 The present embodiment will be described. The burner 7 of the present embodiment is a gas-liqui...

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Abstract

The invention provides a small-grain-diameter lignite gasification device based on vacuum thermal decomposition and a gasification method thereof and relates to a lignite gasification device and method. The small-grain-diameter lignite gasification device based on the vacuum thermal decomposition and the gasification method aim at solving the problem that an existing lignite gasification device and method are low in lignite gasification efficiency, high in cost and complicated in production process, cause environmental pollution and enable the heat value of produced gas to be low. A boiler cylinder of the small-grain-diameter lignite gasification device is installed in a reactor, a fully-sealed cover is installed at the upper end of a top cover of the reactor in a sealed mode, the upper end of the fully-sealed cover is connected with a charging-metering device, a first sensor and a second sensor are installed on the fully-sealed cover, a rotary ash removal pan is installed inside the reactor, a screw feeder is installed at the lower end of the reactor, and a combustor is inserted into the rotary ash removal pan. The gasification method comprises the steps of 1 enabling the inside of the reactor to be in a negative-pressure vacuum state, 2 igniting bottom-layer lignite, 3 adjusting the temperature and pressure of the inside of the reactor, 4 adding steam into the reactor to produce chemical reaction and 5 injecting oxyhydrogen gas into the reactor. The small-grain-diameter lignite gasification device based on the vacuum thermal decomposition and the gasification method are used for lignite gasification.

Description

technical field [0001] The invention relates to a lignite gasification device and a gasification method, in particular to a small particle diameter lignite gasification device and a gasification method based on vacuum thermal decomposition, and belongs to the fields of chemical industry, coal and metallurgy. Background technique [0002] Ukrainian patent #66849, МПКC10J3 / 02, coal gasification method. Including a vertical reactor, coal enters the reactor from the top of the reactor, and ash is discharged from the bottom of the reactor. The gasification reaction zone is at the bottom of the reactor, which includes ash and slag high-temperature melt as a heat transfer medium, and gas containing steam and oxygen as a gasification catalyst is added to the melt from the outside. The synthesis gas is discharged from the upper part of the reactor. It is characterized in that there are multi-layer boiling gasification coal beds in the upper part of the reactor, and the syngas passe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/48C10J3/50C10J3/52
Inventor 王晓峰科瓦楞科·沃罗基米尔
Owner 王晓峰
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