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Furnace body cooling device of coal gasifier

A cooling device and coal gasification technology, applied in the field of coal gasification, can solve problems such as rising temperature of the water jacket in the combustion zone, easy blockage of the gas outlet, serious slag accumulation on the furnace top and furnace wall, etc., so as to thicken the coal seam and reduce cleaning Slag workload and ignition operation are easy to control

Pending Publication Date: 2020-06-23
INNER MONGOLIA HUAXING NEW ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The steam film is a poor conductor of heat. After the steam film is formed, the temperature of the water jacket in the combustion zone will rise sharply, exceeding the melting temperature of the plate, and finally cause the water jacket of the gasifier to burn through partially.
When the load increases, the temperature of the inner surface of the furnace is high, and there is a partial furnace phenomenon during thermal movement, which makes it difficult to increase the gasification intensity. normal coal gasification production

Method used

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  • Furnace body cooling device of coal gasifier
  • Furnace body cooling device of coal gasifier
  • Furnace body cooling device of coal gasifier

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Experimental program
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Effect test

Embodiment 1

[0020] see figure 1 , the furnace body cooling device of the coal gasification furnace of the present invention comprises a furnace body 1 for gasifying raw coal, a raw coal inlet pipe section 2 is arranged on the top of the furnace body, and an ash outlet 105 is arranged at the bottom of the furnace body, and the The gasification reaction furnace 4 is arranged in the middle part of the furnace body; the bottom end of the raw coal inlet pipe section is connected to the conical tubular coal distribution section 3, and the coal distribution section cooling water jacket device is arranged on the conical tubular coal distribution section. The first water supply pipe joint 302 is arranged on one side of the coal section cooling water jacket device, and the steam outlet pipe of the coal distribution section is arranged on the other side; the furnace body cooling water jacket device is arranged on the outer wall of the furnace body, and the furnace body cooling water jacket device Th...

Embodiment 2

[0029] This embodiment is an improvement made on the basis of Embodiment 1. For the same parts in this embodiment as Embodiment 1, please refer to the content disclosed in Embodiment 1 for understanding, and no repeated description is made here; the disclosure in Embodiment 1 The content should also be taken as the content disclosed in this embodiment.

[0030] see Figure 4 , Figure 5 ( Figure 4 , Figure 5 It is a schematic diagram of the outer cylinder wall of the water jacket of the furnace body cooling water jacket device according to the circumference). In this embodiment, the furnace body cooling water jacket device includes the outer cylinder wall of the water jacket, the inner cylinder wall of the water jacket, and the water supply pipe joint (No. Two water supply pipe joints 102), steam outlet pipe (boiler steam outlet pipe 104); the inner cylinder wall of the water jacket is a part of the outer wall of the furnace; the outer cylinder wall of the water jacket an...

Embodiment 3

[0035] This embodiment is an improvement made on the basis of Embodiment 1 and Embodiment 2. For the same parts as Embodiment 1 and Embodiment 2 in this embodiment, please refer to the content disclosed in the previous embodiment for understanding, and no further description is made here. repeat description;

[0036] see Figure 6 ( Figure 6 It is a schematic diagram of the outer cylinder wall of the water jacket of the furnace cooling water jacket device according to the circumference). In this embodiment, the preferred swinging bubble sweeper includes a plurality of cylindrical floating bodies, and a plurality of defoaming needles are arranged on the cylindrical floating bodies. Each two cylindrical floating bodies are connected by cable chains in an up-and-down structure to form a cylindrical floating body chain, and the bottom end of the cylindrical floating body chain is fixed on the bottom of the furnace body cooling water jacket device. The cylindrical floating body ...

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Abstract

The invention relates to a furnace body cooling device of coal gasifier, a feed coal inlet pipe section is arranged at the top of a furnace body, and a gasification reaction hearth is arranged in themiddle of the furnace body; a coal distribution section cooling water jacket device is arranged on the taper-pipe-shaped coal distribution section, a first water supply pipe connector is arranged on one side of the coal distribution section cooling water jacket device, and a coal distribution section steam outlet pipe is arranged on the other side; a furnace body cooling water jacket device is arranged on the outer wall of the furnace body, a second water supply pipe connector is arranged on one side of the furnace body cooling water jacket device, and a furnace body steam outlet pipe is arranged on the other side of the furnace body cooling water jacket device; the steam supply pipeline is communicated with an input port of a gasifying agent pipe at the bottom of the furnace body, and acooling water outlet pipe joint and a make-up water pipe joint are arranged at the bottom of the steam collector and respectively communicated with a first water supply pipe joint and a second water supply pipe joint through cooling water distribution pipelines.

Description

technical field [0001] The invention relates to the technical field of coal gasification, in particular to a furnace body cooling device for a coal gasification furnace. Background technique [0002] Existing statistics show that coal reserves are far greater than oil and natural gas. According to estimates, at the current rate of exploitation, global crude oil can be exploited for 40.5 years, natural gas for 66.7 years, and coal for 164 years. Therefore, coal is the most important fossil energy in my country. At present, the environment-friendly pressurized entrained entrained gasification technology has been widely used in our country. Among them, the cooling water jacket type gasifier occupies a considerable share, and the gasification cooling water jacket type gasifier will be the mainstream of gasification technology in the future. [0003] Chinese patent 201810091390.6 discloses a fixed-bed gasifier, including a water-cooled wall shell, a gas-liquid separator, a wash...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/72C10J3/74
CPCC10J3/72C10J3/74
Inventor 张维田阚学飞
Owner INNER MONGOLIA HUAXING NEW ENERGY
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