Pressurized pneumatic feeding system and pressurized pneumatic feeding method for coal slurry
A feeding system, coal slurry technology, applied in the direction of manufacturing combustible gas, granular/powdered fuel gasification, petroleum industry, etc., to achieve the effect of reasonable design, saving equipment investment costs, and eliminating pulses
Active Publication Date: 2019-02-22
THE NORTHWEST RES INST OF CHEM IND +1
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Problems solved by technology
[0004] Therefore, there is a lack of a simple structure and reasonable design coal slurry pressurized pneumatic feeding system and method, which uses pressurized gas to carry out pressurized transportation of coal slurry, and uses pressurized gas to replace high-pressure coal slurry pumps for coal slurry transportation. Save equipment investment costs
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[0068] Such as figure 1 and figure 2 A coal slurry pressurized pneumatic feeding system shown includes a control module, a coal slurry storage tank mechanism and a pneumatic pressurization mechanism for pressurizing the coal slurry storage tank mechanism, the coal slurry storage tank mechanism and the coal slurry storage tank mechanism The pneumatic pressurizing mechanisms are all connected to the gasifier 8;
[0069] Described coal slurry storage tank mechanism comprises low-pressure coal slurry storage tank 4, the low-pressure coal slurry pump 5 that is connected with low-pressure coal slurry storage tank 4 and the high-pressure coal slurry storage tank that is connected with described low-pressure coal slurry storage tank 5, and the high-pressure coal slurry storage tank The liquid inlet of the slurry storage tank is provided with a feed valve, the liquid outlet of the high-pressure coal slurry storage tank is provided with a discharge valve, the air inlet of the high-pre...
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The invention discloses a pressurized pneumatic feeding system and a pressurized pneumatic feeding method for coal slurry. The system comprises a control module, a coal slurry storage tank mechanism and a pneumatic pressurizing mechanism, wherein the coal slurry storage tank mechanism comprises a low-pressure coal slurry storage tank, a low-pressure coal slurry pump and high-pressure coal slurry storage tanks; the pneumatic pressurizing mechanism comprises a gas compressor, a gas source storage tank and a pressure relief tank; the control module comprises a controller; an input end of the controller is connected with a liquid sensor group, a pressure sensor group, a flow sensor group and a gas supply flow sensor. The method comprises the following steps: firstly, compression and storage ofa gas source; secondly, storage and low-pressure transmission of the coal slurry; thirdly, pneumatic pressurizing and conveying of the coal slurry; fourthly, feeding of gas raw materials. According to the pressurized pneumatic feeding system and the pressurized pneumatic feeding method disclosed by the invention, a reasonable design is adopted; pressurized transmission is carried out by utilizingpressurized gas, so that a pulse generated by a mechanical conveying mode of a high-pressure coal slurry pump is eliminated and the metering accuracy of the coal slurry is improved. In addition, investment expenses of equipment are reduced and high practicality is realized.
Description
technical field [0001] The invention belongs to the technical field of coal slurry feeding, and in particular relates to a coal slurry pressurized pneumatic feeding system and method. Background technique [0002] Coal gasification and natural gas conversion are the main processes for producing syngas in modern chemical industry. The coal gasification process has more carbon and less hydrogen, which is rich in heat. The natural gas conversion process has more hydrogen and less carbon, which requires heat consumption. According to the characteristics of coal gasification and natural gas conversion, the transportation of natural gas is completed by gas compression feed, and the transportation of coal slurry is completed by pumps. Due to the design of the pump itself, flow pulses will be generated when switching between different cylinders, which will affect the accurate measurement of the flowmeter. At the same time, due to the high viscosity and high abrasion characteristics...
Claims
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Login to View More IPC IPC(8): C10J3/50C10J3/46C10J3/72
CPCC10J3/46C10J3/50C10J3/723
Inventor 徐红东高俊文林益安朱春鹏刘军赵蒙杨云龙曾梅王锦韦孙昌邹涛贺根良徐宏伟门长贵刘晓霞
Owner THE NORTHWEST RES INST OF CHEM IND