Treatment of sludge in sludge refining equipment

During the use of the sludge refining equipment, in order to ensure the processing effect and efficiency of the equipment, it has a certain processing method.

1. A processing method for the harmlessness and recycling of oily sludge in an oil refinery, it is characterized in that the concrete operation steps are:

(1) Weigh 300～500kg of oily sludge from oil refinery, put it in a ball mill, after ball milling for 6～8h, pour it into a reaction kettle filled with 800～1000L water, stir and react at constant temperature and pressure for 15～30min, wait for reaction End, open the discharge valve at the bottom of the reaction kettle, so that the material in the reaction kettle is injected into the receiving kettle;

(2) After the material in the above-mentioned receiving kettle is naturally cooled to room temperature, it is transferred to the settling tank, left standing for 3-5h, the upper layer liquid of the settling tank is separated, and the No. 1 oil-water mixture is obtained, and 600-800L of water is continued to be added to the settling tank, After stirring and mixing for 30 to 45 minutes, let stand for 3 to 5 hours, separate the upper layer liquid of the sedimentation tank to obtain No. 2 oil-water mixture, and combine No. 1 and No. 2 oil-water mixture to obtain a mixture for use, and keep the lower sediment in the in the settling tank;

(3) Weigh 60～80kg earthworms, put them into the above-mentioned settling tank, under room temperature, spray 200～400mL water on the surface of the sediment in the settling tank every 8～12h, culture earthworms for 10～15 days, separate and remove the earthworms, and then remove the earthworms. The material in the sedimentation tank is placed in the sun, and exposed to the sun for 5 to 7 days, and then the exposed material is transferred to the carbonization furnace, and nitrogen is introduced into the furnace at a rate of 80 to 100 mL/min. Program the temperature to 500-550°C at a rate of 5°C/min, thermally carbonize for 4-6 hours, cool down to room temperature with the furnace, discharge the material, and recover the materials in the carbonization furnace to obtain porous adsorption materials;