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A slurry and oxygen feed control method for a multi-channel nozzle

A multi-channel, slurry technology, applied in the direction of granular/powdered fuel gasification, gasification process, and production of combustible gas

Active Publication Date: 2020-12-15
XIAN ORIGIN CHEM TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a slurry and oxygen feed control method for a multi-channel nozzle in view of the deficiencies in the prior art above. The flow rate can be increased by 1.2 to 2 times compared with the single-channel slurry feed, and the atomization is more uniform and the combustion is more complete; in addition, the slurry feed can be diversified, and other hydrocarbon-containing materials except coal slurry can be reused as pulping raw materials , more environmentally friendly, and at the same time avoid the problems of uneven mixing and unsmooth transportation caused by co-slurry with coal slurry, strong practicability

Method used

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  • A slurry and oxygen feed control method for a multi-channel nozzle
  • A slurry and oxygen feed control method for a multi-channel nozzle
  • A slurry and oxygen feed control method for a multi-channel nozzle

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Embodiment 1

[0080] Such as figure 1 and image 3 Shown, a kind of slurry and oxygen feed control method of multi-channel nozzle, the device that this method adopts comprises multi-channel nozzle and control module, and described multi-channel nozzle comprises nozzle 14, the slurry conveying that is arranged on nozzle 14 mechanism and an oxygen delivery mechanism, the slurry delivery mechanism includes a slurry channel, a slurry flow detection module and a slurry delivery adjustment mechanism, and the slurry channel includes a central oxygen slurry channel 15 and an epoxy slurry channel 16, so The oxygen delivery mechanism includes a central oxygen channel 7 connected to the main oxygen channel 1, an oxygen channel 6 of the middle ring pipe and an oxygen channel 5 of the outer ring pipe, and the control module includes a controller 25 and an A display screen 26 and an alarm 27, the central oxygen channel 7 is provided with a first regulating valve 13 and a first oxygen partial flow detectio...

Embodiment 2

[0124] In this embodiment, the difference from embodiment 1 is:

[0125] Such as figure 2 As shown, in this embodiment, the slurry flow detection module includes a first slurry sub-flow detection unit 37, a second slurry sub-flow detection unit 38 and a third slurry sub-flow detection unit 38 arranged on the central oxygen slurry channel 15. The sub-flow detection unit 39 and the fourth slurry sub-flow detection unit 32, the fifth slurry sub-flow detection unit 33 and the sixth slurry sub-flow detection unit 34 arranged on the epoxy slurry channel 16;

[0126] The slurry conveying adjustment mechanism includes a first high-pressure slurry pump 35 arranged on the central oxygen slurry channel 15, a first motor 36 driving the first high-pressure slurry pump 35, and a first motor 36 arranged on the epoxy slurry channel 16. The second high-pressure slurry pump 30 and the second motor 31 driving the second high-pressure slurry pump 30, the first slurry sub-flow detection unit 37,...

Embodiment 3

[0150] In this embodiment, the difference from embodiment 2 is:

[0151] In this embodiment, it is further preferred that the ratio of the total volume flow rate of oxygen to the total volume flow rate of the slurry is 471.

[0152] In this embodiment, the slurry in the central oxygen slurry channel 15 is coal slurry, and the density of the coal slurry is 1220kg / m 3 ; The slurry in the epoxy slurry channel 16 is coal slurry, and the density of the coal slurry is 1220kg / m 3 ;

[0153] In this embodiment, it is further preferred that the set value of the partial flow of oxygen in the central oxygen channel 7 is 8% of the set value of the total volume flow of oxygen, and the set value of the partial flow of oxygen in the oxygen channel 6 of the central ring pipe is set at the set value of the total volume flow of oxygen. 40% of the fixed value and the set value of the oxygen partial flow of the outer ring pipe oxygen channel 5 is 52% of the set value of the total volume flow of...

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Abstract

The invention discloses a slurry and oxygen feeding control method of multi-channel nozzle, which comprises the following steps of: 1, acquiring and transmitting detection data; 2, processing and controlling the data of the slurry total channel and the oxygen total channel; 3, controlling the flow rates of the slurry sub-channel and the oxygen sub-channel. the slurry and oxygen feeding control method of multi-channel nozzle has the advantages of simple steps, reasonable design, convenient realization and good use effect, the slurry flow rate can be increased by 1.2 to 2 times compared with single-channel slurry feeding, the atomization is more uniform, and the combustion is more sufficient; In addition, the slurry feeding can be diversified, other hydrocarbon-containing materials except the coal slurry are reused as pulping raw materials, so that the slurry is more environment-friendly, the problems of uneven mixing, unsmooth conveying and the like caused by pulping together with the coal slurry are solved, and the practicability is strong.

Description

technical field [0001] The invention belongs to the technical field of slurry and oxygen feed control, in particular to a method for controlling slurry and oxygen feed of a multi-channel nozzle. Background technique [0002] Multi-component slurry gasification is to prepare qualified gasification slurry by adding appropriate additives to petroleum coke, petroleum pitch, coal, heavy oil, and various solid residues and raffinate in the petroleum processing process, and then under high temperature and high pressure Reacts with oxygen to produce CO and H 2 Synthesis gas as the main component. At present, a prominent problem in the process of producing syngas by gasification is that the existing gasification device can achieve a maximum coal input of 2,000 tons / day, and an important factor restricting the large-scale gasification technology is the slurry transportation and Atomization problem. Due to its special characteristics, the slurry has problems such as high viscosity, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10J3/50C10J3/56C10J3/72
CPCC10J3/50C10J3/56C10J3/723C10J2300/0903C10J2300/0959
Inventor 王锦张勇门长贵朱春鹏罗进成林益安杨云龙韦孙昌赵蒙郑亚兰曾梅徐宏伟贺根良
Owner XIAN ORIGIN CHEM TECH
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