A method for treating oily sludge hazardous waste by using a power station boiler
A technology for hazardous waste and power station boilers, which is applied in pyrolysis treatment of sludge, sludge treatment, combustion methods, etc., can solve the problems of high treatment cost, low treatment efficiency, and large investment, and achieves low equipment investment and high treatment efficiency. The effect of high, low processing cost
Active Publication Date: 2020-04-17
XIAN THERMAL POWER RES INST CO LTD
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Problems solved by technology
[0003] At present, the commonly used sludge hazardous waste treatment methods include: solidification treatment method, separation method, biological method, stacking method, pyrolysis incineration method, etc. These methods have the disadvantages of large investment, low treatment efficiency, and high treatment cost.
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[0027] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0028] Such as figure 1 with figure 2 As shown, a kind of method that utilizes power station boiler to process oily sludge hazardous waste provided by the present invention comprises the following steps:
[0029] 1) The sludge hazardous waste to be treated is sent into the sludge storage tank 1 for storage through a manual or automatic feeding device, wherein a steam heater 5 is introduced into the sludge storage tank 1 to increase the temperature of the sludge and make the sludge have good fluidity;
[0030] 2) Oil sludge falls into the drum filter 2 from the oil sludge storage tank 1 through the feeding device, wherein the drum filter 2 is arranged in the sealed casing 6, and a steam heater 5 is introduced into the drum filter 2 to heat the oil sludge to keep the oil sludge good liquidity;
[0031] 3) When the drum filter 2 rotates to drive the sl...
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The invention discloses a method for treating oil sludge waste by utilizing a power station boiler. The method comprises the following steps that the oil sludge hazardous waste to be treated is sent into an oil sludge storage tank for storage; the oil sludge hazardous waste falls into a roller filter from the oil sludge storage tank; the roller filter rotates to drive the oil sludge hazardous waste in the roller filter to roll, the liquid and small particle components in the oil sludge hazardous waste fall into an filtrated oil sludge tank body on the bottom of the roller filter through the sieve holes, and the large particle components in the oil sludge hazardous waste fall into an impurity tank at the bottom end of the roller filter; the combustible gas generated in the oil sludge hazardous waste heating process is pumped and sent into the boiler to be combusted; the filtered oil sludge hazardous waste in the oil sludge tank is conveyed to a boiler fuel nozzle through a pipeline andis sprayed into the boiler to be combusted; and the large-particle impurities in the impurity tank are pre-mixed with raw coal and then are fed into a coal grinding machine to be ground into powders and the powders are fed into the boiler for combustion. According to the method, the oil sludge hazardous waste is filtered and correspondingly treated, and put into the boiler to be combusted, so thatthe oil sludge hazardous waste can be treated, no dioxin and other wastes are generated, moreover, the heat of the oil sludge hazardous waste can be utilized, the implementation process is simple andconvenient, and the initial investment is small.
Description
technical field [0001] The invention belongs to the technical field of oil sludge hazardous waste treatment, and in particular relates to a method for treating oil sludge hazardous waste by using a power station boiler. Background technique [0002] Oil sludge is a substance produced during oil extraction and processing, which is mainly composed of crude oil, water, clay sand, biological organic matter, etc. Oil sludge contains benzene series, phenols, anthracene, pyrene and other substances with foul smell and toxicity, which seriously threaten the surrounding environment and human survival and health. Sludge has been included in the "National Hazardous Waste Catalogue" and cannot be discharged without treatment. [0003] At present, the commonly used sludge hazardous waste treatment methods include: solidification treatment method, separation method, biological method, stacking method, pyrolysis incineration method, etc. These methods have the disadvantages of large inves...
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IPC IPC(8): F23K5/00F23K5/18F23K5/20C02F11/10C02F11/12
CPCC02F11/10C02F11/121F23K5/002F23K5/18F23K5/20
Inventor 方顺利姚伟王桂芳何红光
Owner XIAN THERMAL POWER RES INST CO LTD