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An integrated device for separating and cooling solid particles and its processing method

A technology of solid particles and granules, applied in the field of coal chemical industry, can solve the problems of unable to achieve self-cleaning of plates, unable to withstand pressure, unable to operate for a long time, etc., and achieve the effect of strong adjustability, low cost and good cooling effect.

Active Publication Date: 2021-10-15
胜帮科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are some problems when it is applied to powder coke cooling: the equipment cannot withstand the pressure, and a new pressure shell needs to be designed to match it; how to ensure the heat transfer effect of the powder plunger flow after changing the structural form still needs to be studied
Due to the characteristics of the plate structure, the cooling medium must be liquid water, and it is necessary to prevent the vaporization of water to avoid damage to the plate. If there is an abnormal flow control of powder coke during operation, it may also cause damage to the plate.
At the same time, there may be a risk of a small amount of tar and water vapor being precipitated in the powder coke at low temperatures. The speed of the powder coke is extremely low (about 0.01m / s) during the downward process, and the self-cleaning of the plates cannot be achieved, so there is no long-term cycle risk of running

Method used

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  • An integrated device for separating and cooling solid particles and its processing method
  • An integrated device for separating and cooling solid particles and its processing method
  • An integrated device for separating and cooling solid particles and its processing method

Examples

Experimental program
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Effect test

Embodiment 1

[0077] This embodiment provides an integrated device for separation and cooling of powder and coke. The device includes a separation section, an air stripping section 2 and a cooling section 4 from top to bottom. The schematic diagram of its local structure is as follows figure 2 As shown, the separation section is provided with a gas-solid separator, the bottom of the stripping section 2 is provided with a stripping steam inlet, the cooling section 4 is provided with a heat exchange tube, and the bottom of the cooling section 4 is provided with a fluidization gas inlet;

[0078] A riser reactor 1 is arranged longitudinally in the middle of the integrated device, and the riser reactor 1 passes through the bottom of the integrated device downwards and extends upward to the upper part of the separation section.

[0079] Wherein, the length of the riser reactor 1 is 25m, the diameter is 1.2m, the diameter of the separation section is 9m, the diameter of the stripping section 2 is...

Embodiment 2

[0083] This embodiment provides an integrated device for separation and cooling of powder and coke. The device includes a separation section, an air stripping section 2 and a cooling section 4 from top to bottom. The schematic diagram of its local structure is as follows image 3 As shown, the separation section is provided with a gas-solid separator, the bottom of the stripping section 2 is provided with a stripping steam inlet, and the cooling section 4 includes a first cooling section 41 and a second cooling section 42 from top to bottom;

[0084] A riser reactor 1 is arranged longitudinally in the middle of the integrated device, and the riser reactor 1 passes through the bottom of the integrated device downwards and extends upward to the upper part of the separation section.

[0085] Wherein, the length of the riser reactor 1 is 30m, the diameter is 1.5m, the diameter of the separation section is 10m, the diameter of the stripping section 2 is 5m, the diameter of the first...

Embodiment 3

[0090] This embodiment provides an integrated powder coke separation and cooling device. The structure of the device refers to Embodiment 1, the only difference is that the cooling section 4 uses desalted water for heat exchange, no steam drum is provided, and the heat exchange tube Arranged in a circular spiral.

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Abstract

The invention provides an integrated device for separating and cooling solid particles and its processing method. The device includes a separation section and a cooling section from top to bottom, the separation section is provided with a gas-solid separator, and the cooling section is provided with As for the heat exchange tube, the lower part of the device is provided with a fluidizing gas inlet. The method comprises: directly cooling the solid particles obtained through gas-solid separation in a fluidized state to obtain the cooled solid particles. The device of the present invention can directly cool the separated solid particles in a fluidized state, which reduces the operation of fluidizing the solid particles after defluidization, and has a large effective heat exchange area and good cooling effect; the device has a simple structure, The cooling section is highly adjustable, easy to operate, low in cost and wide in application.

Description

technical field [0001] The invention belongs to the technical field of coal chemical industry, and relates to a solid particle separation and cooling integrated device and a processing method thereof, in particular to a powder coke separation and cooling integrated device and a processing method thereof. Background technique [0002] With the increasingly serious problems of energy shortage and environmental pollution, it has become a consensus to develop technologies for efficient utilization of chemical raw materials. Coal is an important chemical raw material, and realizing the rational conversion and effective utilization of coal resources is one of the current research focuses. Among them, powder coke cooling is a key link in the pulverized coal pyrolysis process. It is necessary to separate the powder coke from pyrolysis oil and gas and then cool it for subsequent packaging, transportation and utilization. [0003] At present, there are mainly two cooling methods for ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10B57/00F28D13/00
Inventor 荣先奎王庆元陈树群
Owner 胜帮科技股份有限公司