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High-temperature gas reverse double-rotation efficient mixer matched with acetylene furnace

A technology of gas mixing and acetylene furnace, applied in chemical instruments and methods, detailed information of chemical/physical/physical chemical reactors, chemical/physical/physical chemical processes, etc., can solve the specific structure and realization method of the mixer without disclosure and other problems, to achieve the effect of improving mixing efficiency, increasing air intake speed, and high mixing uniformity

Pending Publication Date: 2022-05-03
王金福
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Wherein the function of the mixer is to fully and rapidly mix hydrocarbons and oxygen, but this patent does not disclose the specific structure and implementation method of the mixer

Method used

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  • High-temperature gas reverse double-rotation efficient mixer matched with acetylene furnace
  • High-temperature gas reverse double-rotation efficient mixer matched with acetylene furnace
  • High-temperature gas reverse double-rotation efficient mixer matched with acetylene furnace

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A gas reverse double-rotation mixer matched with the acetylene furnace, its structure is as follows figure 1 As shown, it includes a first air inlet 1, a gas mixing area 2 and a second air inlet 3; the first air inlet 1 is a port of a shell 8 with a cylindrical structure, and the lower part of the first air inlet 1 The area inside the housing 8 is the gas mixing zone 2, and the first air inlet 1 is used to send the first gas into the gas mixing zone 2; the second air inlet 3 communicates with the housing 8 at the position of the gas mixing zone 2, and uses Then send the second gas into the gas mixing zone 2.

[0041] The specific and preferred structure of the first air inlet 1 is as follows: the center of the first air inlet 1 is provided with an inner sleeve 9, positioning fins 6 and cone columns 4; the inner sleeve 9 has the same outer diameter as the inner diameter of the housing 8 1. The inner diameter is a funnel-shaped closed structure, which is arranged in the ...

Embodiment 2

[0046] A raw material gas mixing process in the process of producing acetylene from natural gas, it uses the gas inverse double-rotation mixer matched with the acetylene furnace in embodiment 1, comprising the following steps:

[0047] Send one of oxygen or hydrocarbon gas into the inner sleeve 9 from the mouth of the first air inlet 1;

[0048] The other one of oxygen or hydrocarbon gas is sent into the shell from the mouth of the second air inlet 3;

[0049] The two gases are mixed in the gas mixing zone 2 .

[0050] Preferably, the gas velocity entering the gas mixing area 2 from the first air inlet 1 is 120-320m / s; the gas velocity entering the gas mixing area 2 from the first air inlet 1 is 120-280m / s; The mixing time of the mixing zone is 0.001-0.01S, and then enters the acetylene reaction furnace from the exhaust part 7; the gas entering the gas mixing zone in the shell 8 from the mouth of the second air inlet 3 is natural gas raw material gas; the gas mixing The temp...

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Abstract

The invention belongs to the technical field of preparation of acetylene from natural gas, and provides a gas reverse double-rotation mixer matched with an acetylene furnace, which comprises a first gas inlet, a gas mixing area and a second gas inlet, the first gas inlet is a port of the shell with a cylindrical structure, and the area in the shell at the lower part of the first gas inlet is a gas mixing area; the second gas inlet is communicated with the shell at the gas mixing area; the air inlet wall of the second air inlet is tangentially connected with the cylinder wall of the shell; a conical column is arranged in the center of the first air inlet; rotational flow fins are fixed on the conical column, each rotational flow fin is of a sheet-shaped structure which is spirally arranged in the same direction from top to bottom along the periphery of the cylindrical part of the conical column, and the inclination angle of each rotational flow fin relative to the cross section of the conical column is 15-45 degrees; and the gas inlet direction of the second gas inlet to the gas mixing area is opposite to the spiral direction of the rotational flow fins in the shell from top to bottom.

Description

technical field [0001] The invention generally relates to the technical field of producing acetylene from natural gas, and in particular to a gas reverse double-rotation mixer and raw material gas mixing process matched with an acetylene furnace. Background technique [0002] Acetylene is an important chemical raw material, which is mainly used to produce a series of chemical products such as acetic acid, vinyl acetate, vinyl acetylene, acrylic acid, butadiene, 1,4-butanediol, etc. It is also used as synthetic rubber, synthetic fiber and Monomers of materials such as plastics. Partial oxidation of hydrocarbons to acetylene is one of the main preparation methods of acetylene at present. With the exploitation of natural gas raw materials and the maturity of the use technology, the technology of partial oxidation of natural gas to acetylene has attracted widespread attention. [0003] The method for preparing acetylene by partial oxidation of natural gas is to preheat natural ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J4/00B01J19/00
CPCB01J4/005B01J19/0006B01J19/0053B01J19/006B01J2204/002B01J2219/00164B01J2219/00772
Inventor 王金福刘莹
Owner 王金福
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