A kind of technique of shell class downdraft fixed bed gasification power generating simultaneously activated carbon, heat

A kind of technique of shell class downdraft fixed bed gasification power generating simultaneously activated carbon, heat

  • CN 105,505,466 B
  • Filed: 11/30/2015
  • Issued: 05/08/2018
  • Est. Priority Date: 11/30/2015
  • Status: Active Grant
First Claim
Patent Images

1. A kind of 1. technique of shell class downdraft fixed bed gasification power generating simultaneously activated carbon, heat, it is characterised in that:

  • Utilize scaleGas-carbon cogeneration downdraft fixed-bed gasification furnace, combustion gas is obtained as the fuel of gas fired-boiler, combustion gas by the use of shell biolobic material vaporizing systemThe Steam Actuation steam turbine power generation that boiler produces, while activated carbon, heat are obtained, its concrete technology includes following steps:

    1)

    The collection of shell biolobic material raw material, moisture content is more than 20%, required to drum drying equipment,Drying to moisture content is less than 20%;

    2)

    Shell biolobic material is entered in scale downdraft gas-carbon cogeneration fixed-bed gasification furnace by Belt Conveying, shell class biologyMatter produces combustible gas in the gasification of 600-800 DEG C of condition, and flammable gas calorific value is 950-1300Kcal, 350 DEG C of temperature;

    3)

    Shell biolobic material requires the control intensity of gasification in gasification according to production activated carbon, obtains being adapted to production activityThe fruit shell carbon of charcoal, fruit shell carbon Industrial Analysis:

    Below ash content 3%, volatile matter 10-15%, fixed carbon 82-87%, then fruit shell carbon useHigh-quality active fruit shell carbon is made in conventional steam activation furnace, and active fruit shell carbon index is better than on GB/T13803.2-1,999 oneThe index of level product;

    4)

    Gasify 350 DEG C of the hot combustion gas produced, contains tar in hot combustion gas, and more than 300 DEG C of tar is that gaseous state is passed directly into combustionBurner is used for gas fired-boiler, does not have waste water and tar to produce in system;

    5)

    Steam Actuation steam turbine generate electricity while heat supply, makes after the vapor portion decompression that boiler produces for activated carbon activationWith;

    The shell biolobic material raw material includes apricot shell, palm shell or peach-pit shell biolobic material;

    The scale gas-carbon cogeneration downdraft fixed-bed gasification furnace is more than unit 1MW its gasification reaction temperature 600-800 DEG C, gas production 1.7-2.5m3/ kg, obtains charcoal rate 20-30%;

    The scale gas-carbon cogeneration downdraft fixed-bed gasification furnace, its structure are that top is equipped with feed inlet, decelerating motor bandRotating flat glassware, hydraulic pressure lifting device are moved, hydraulic pressure lifting device is connected with flat glassware, makes the raw material for entering gasification furnace from feed inletIt is uniformly distributed, while flat glassware height is adjusted to meet the requirement of height of materials change by hydraulic pressure lifting device;

    In the middle part of gasification furnaceReaction chamber is equipped with secondary air compensating pipe, improves reaction layer thickness by supplementing gasifying agent, improves the quality of combustible gas;

    In the middle part of gasification furnaceBroken bridge driving lever is equipped with reaction chamber, broken bridge driving lever is connected with fire grate, and the rotation of broken bridge driving lever is driven while fire grate rotates, is realizedDestroy material bridging;

    Fire grate outer chamber sets combustible gas bleeding point;

    Gasification furnace lower part reaction chamber is equipped with spraying cooling pipe and rotatablyCharcoal is tentatively cooled down, will fallen by rotary material scraper rotary scraping by material scraper, the charcoal material fallen by spraying cooling pipe sprayUnder charcoal scrape and exported into fruit shell carbon, be finally collected into the fruit shell carbon of cooling;

    The scale shell class downdraft fixed-bed gasification furnace, its scale is in more than 3MW.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×