37results about How to "Improve thermal desorption efficiency" patented technology

The invention relates to a roller-type reverse thermal desorption system for soil polluted by organic matters. The roller-type reverse thermal desorption system comprises a soil feeding system, wherein the soil feeding system and a heat source system are connected with a reverse thermal desorption system; the reverse thermal desorption system is connected with a dust removing system, a cooling system and an active carbon adsorption system in turn; and control ends of the soil feeding system, the heat source system, the reverse thermal desorption system, the dust removing system, the cooling system and the active carbon adsorption system are connected with a control system. In the roller-type reverse thermal desorption system, hot air is fed into a reverse thermal desorption roller by an ignition system, and polluted soil is fed into the reverse thermal desorption roller by a soil transferring device, wherein the hot air contacts the soil reversely, so that organic pollutants containedin the soil are heated and volatilized; the purified soil is used as backfill soil; and the volatilized tail gas is dedusted by a cyclone dust extractor and an adsorption dust extractor after passingthrough an induced draft fan, and the dedusted volatilized tail gas is absorbed by a honeycomb-shaped active carbon tower after passing through an atomization cooling tower and a dial plate cooling device, and finally is discharged by a tail gas exhaust device on the basis of meeting the national standard. Materials can be fed into the roller-type reverse thermal desorption system continuously and can be heated directly; and the hot air and the polluted soil are fully mixed, and the roller-type reverse thermal desorption system has high thermal desorption efficiency.

The invention discloses a tank-type thermal desorption device based on thermal desorption auxiliary agent filling and a desorption method thereof. The device includes a support frame, a thermal desorption unit located above the support frame, a drive control unit and an exhaust gas The processing unit, the thermal desorption unit includes a thermal desorption tank with an electric heating jacket on the outside, the bottom of the thermal desorption tank is connected to the rotary dial filled with thermal desorption aids through a rotating shaft, and the drive control unit includes an electric box and The motor and the transmission assembly connected with the rotating shaft; the tail gas treatment unit includes an adsorption box filled with adsorption filler. The present invention uses aluminum oxide balls with adsorbed hydrogen peroxide solution as a low-temperature thermal desorption aid, calcium peroxide as a high-temperature thermal desorption aid, and the soil is fully distributed between two thermal desorption aids by means of the centrifugal rotation of the rotating dial wheel. The paddle of the desorption aid can evenly disperse the oxygen decomposed by heat into the soil, improving the thermal desorption efficiency.

The invention relates to the technical field of soil treatment and discloses a thermal-desorption soil restoring device. The thermal-desorption soil restoring device comprises a support and a horizontal heating cylinder arranged on the support, wherein a feeding channel is arranged at the upper side of the left end of the heating cylinder, a discharging channel is arranged at the lower side of the right end of the heating cylinder, a solar heat collecting pipe is arranged at the outer side of the heating cylinder, a solar reflector is arranged at one side of the support, a main shaft is arranged in the heating cylinder, a spiral band is arranged on the surface of the main shaft, a motor for driving the main shaft to rotate is arranged on the support, an air inlet pipe is arranged at the upper side of the left end of the heating cylinder, an exhaust pipe is arranged at the upper side of the right end of the heating cylinder, an exhaust fan is arranged on the exhaust pipe, a rotary drum is arranged at the inner side of the heating cylinder, an annular space is formed between the rotary drum and the heating cylinder, and a plurality of connecting rods are arranged between the inside of the rotary drum and the main shaft. According to the thermal-desorption soil restoring device, solar heating is utilized, energy is saved and the soil thermal-desorption cost is reduced.

The invention relates to the technical field of soil treatment and discloses a thermal desorption remediation device based on solar energy for soil. The thermal desorption remediation device comprises a support and a horizontal heating cylinder arranged on the support, a feed channel is formed in the upper side of the left end of the heating cylinder, a discharge channel is formed in the lower side of the right end of the heating cylinder, a solar thermal collection pipe is arranged on the outer side of the heating cylinder, a solar reflection plate is arranged on one side of the support, a main shaft is arranged inside the heating cylinder, a spiral band is arranged on the surface of the main shaft, a motor driving the main shaft to rotate is arranged on the support, an air inlet pipe is arranged on the upper side of the left end of the heating cylinder, an exhaust pipe is arranged on the upper side of the right end of the heating cylinder, an exhaust fan is arranged on the exhaust pipe, rotating sleeves are fixed to the two ends of the solar thermal collection pipe and are connected to the heating cylinder in a rotating mode, outer teeth are arranged on the outer side of the rotating sleeve at the left end of the solar thermal collection pipe, an auxiliary motor is arranged on the support, and a gear meshed with the outer teeth is arranged at the shaft end of the auxiliary motor. The thermal desorption remediation device has the beneficial effect of greatly lowering the thermal desorption cost of the soil by utilizing the solar energy for heating.

The invention belongs to the technical field of processing of oily sludge and particularly relates to a processing method of oily sludge on an offshore platform. The processing method of the oily sludge on the offshore platform comprises pyrolysis desorption processing, tail gas processing and waste water processing; the pyrolysis desorption processing is completed in a pyrolysis desorption reaction kettle, the inner wall of the pyrolysis desorption reaction kettle and the inside of the pyrolysis desorption reaction kettle are simultaneously heated, the pyrolysis desorption reaction kettle is vertically arranged, and the oily sludge is discharged from the pyrolysis desorption reaction kettle after being subjected to transverse centrifugation and vertical rollover in the pyrolysis desorption reaction kettle; the tail gas processing is used for processing tail gas obtained after a pyrolysis product generated in the pyrolysis desorption reaction kettle is subjected to three-phase separation; the waste water processing is used for processing waste water obtained after the pyrolysis product generated in the pyrolysis desorption reaction kettle is subjected to three-phase separation. According to the processing method of the oily sludge on the offshore platform, when an occupied area of equipment is reduced, processing efficiency of the oily sludge can be improved.