61results about How to "High deoiling efficiency" patented technology

The invention relates to a method and device for recycling mud and base oil in waste oil base drilling fluid through grading and provides the method for recycling the mud and base oil in the waste oilbase drilling fluid through grading. The method comprises the following steps of centrifugal deoiling, rotational flow deoiling and heterogeneous separation of oil and moisture. The invention furtherprovides the device for recycling the mud and base oil in the waste oil base drilling fluid through grading.

The invention discloses an automatic blanking discharging de-oiling machine which comprises a rotating drum, a rotating shaft, a power device, a supporting shaft, a feeding hopper and a frame, wherein the rotating drum is connected with the rotating shaft; the rotating shaft is connected with the power device; the power device is fixed on the frame; a plurality of oil draining holes are uniformly distributed in a drum wall of the rotating drum; a central pillar is arranged in the rotating drum; a spiral baffle is arranged on the central pillar; a blanking channel is arranged in the supporting shaft; a blanking hole is arranged in a side wall of an end part of the blanking channel in the rotating drum; the interior of the rotating drum and the blanking channel are communicated with each other by the blanking hole; the other end of the blanking channel is connected with the feeding hopper; a discharging door is arranged on the end part of one side, which is connected with the rotating shaft, of the rotating drum; a protecting fence is arranged on the side, connected with the rotating shaft, of the rotating drum; an oil baffle cover is arranged on the outer periphery of the rotating drum; an oil collecting slot is arranged in the frame under the oil baffle cover. According to the automatic blanking discharging de-oiling machine, the blanking channel and the feeding hopper are connected with each other and the discharging door is arranged on the rotating drum, so that the automatic blanking and discharging of the de-oiling machine are realized, the de-oiling process is continuously performed and the de-oiling efficiency is increased.

The invention relates to an oil removing machine and provides a filtering-free oil removing machine and a method for removing oil through the filtering-free oil removing machine. The filtering-free oil removing machine is simple in structure and can automatically separate out oil adhering to steel cuttings and is high in oil removing efficiency and good in quality, and separated oil is free of secondary separation and filtering. The technical problems that in the prior art, separated cooling lubrication oil needs secondary separation and filtering, time and labor are wasted, and as small holes of the wall of an oil removing barrel are blocked by metal cuttings in the process, the oil removing barrel is extremely difficult to clean, and the oil removing efficiency and quality are affected are solved. The filtering-free oil removing machine comprises a tank and an oil throwing barrel suspended in the tank, a drive motor is arranged at the position, corresponding to the oil throwing barrel, of the bottom face of the tank, an output shaft of the drive motor faces upwards and drives the oil throwing barrel to rotate, an opening of the oil throwing barrel faces upwards, and a containing cavity of the oil throwing barrel is in a circular truncated cone shape with a large opening and a small bottom.

The invention relates to a special oil removing tank for extruding ultrahigh molecular weight polyethylene gel. The special oil removing tank comprises a tank body and an outer frame type reinforcing frame fixed in the tank body, wherein a plurality of inner tanks are formed in the tank body through partitioning plates, heights of the partitioning plates between adjacent inner tanks are reduced in a step manner from rear to front so that the liquid level of a stored extracting solution is reduced in a step manner so as to dilute process oil grade by grade; and meanwhile, the oil removing time and the oil removing amount of the PE (polyethlene) partitioning plates are ensured. The special oil removing tank is beneficial to online recovery and circulation of the extracting agent and the process oil. The special oil removing tank has the advantages of high oil removing efficiency, simple operation, high automation degree and good sealing effect; the extracting agent and the process oil can be rapidly collected and recycled after being conveniently separated, the production benefit is increased, and the waste of an organic solvent and the pollution to the environment are effectively reduced.

The invention relates to a polyether grafted oil-in-water type crude oil demulsifier and a preparation method thereof. A structure general formula of the demulsifier is as shown in formula I, and thepreparation method thereof comprises the following steps: 1) performing aldehydes modification on a terminal hydroxyl of methoxypolyethylene glycol; 2) enabling the modified methoxypolyethylene glycolto react with chitosan, to obtain methoxypolyethylene glycol grafted chitosan; 3) performing alkylation modification on the methoxypolyethylene glycol grafted chitosan; and 4) performing carboxy alkylation modification on methoxypolyethylene glycol grafted alkylation chitosan, to obtain methoxypolyethylene glycol grafted alkylation carboxy alkyl chitosan. The demulsifier is capable of using chitosan natural macromolecular compounds as a raw material, and has the advantages of wide source, nature, non-toxicity, good biocompatibility, degradation and the like. A carboxy alkyl, an alkyl and a polyether side chain are introduced into a chitosan molecular chain, and through controlling a position and a substitution degree of each substituent group, a series of the efficient demulsifiers suitable for oil-in-water (O / W) emulsion is obtained.

An oil-removing agent used in high-pressure gas environment is proportionally prepared from silicate, C-contained substance and co-oxidant through pulverizing, adding water for wetting, mixing, shaping, baking, and calcining at 600-800 deg.C for 10-50 hr.

The invention relates to a polyether grafted polysaccharides crude oil demulsifier and a preparation method thereof. A structure general formula of the demulsifier is as shown in formula I, and the preparation method thereof comprises the following steps: 1) performing acylation modification on chitosan, to obtain N-acylated chitosan; 2) performing aldehydes modification on a terminal hydroxyl ofmethoxypolyethylene glycol, to obtain aldehyde methoxypolyethylene glycol; 3) enabling the modified methoxypolyethylene glycol to react with N-acylated chitosan, to obtain methoxypolyethylene glycol grafted N-acylated chitosan; 4) performing carboxy alkylation modification on the methoxypolyethylene glycol grafted N-acylated chitosan, to obtain methoxypolyethylene glycol grafted N-acylated carboxyalkyl chitosan. The demulsifier is capable of using chitosan natural macromolecular compounds as a raw material, wide in source, natural, non-toxic, good in biocompatibility, and degradable. A carboxy alkyl, an acyl and a polyether side chain are introduced into a chitosan molecular chain, and through controlling a position and a substitution degree of each substituent group, a series of the efficient demulsifiers suitable for oil-in-water (O / W) emulsion is obtained.

The invention provides a fried beancurd skin roll production line which comprises a plurality of roll frying mechanisms used for frying beancurd skin rolls, an output mechanism used for outputting and boxing the fried beancurd skin rolls, a deoiling mechanism used for spin-drying and deoiling the beancurd skin rolls and a slitting mechanism used for trimming and slitting the beancurd skin rolls. The deoiling mechanism comprises a deoiling box used for placing beancurd skin rolls and a deoiling cylinder used for accommodating the deoiling box and driving the deoiling box to rotate; the output mechanism comprises a main conveying belt used for outputting the beancurd skin rolls, a first mechanical arm used for sorting the beancurd skin rolls on the main conveying belt and putting the beancurd skin rolls into the deoiling tank, and a second mechanical arm used for putting the deoiling tank into the deoiling barrel. According to the automatic feeding and frying device, automatic feeding and frying of the bean curd skin can be achieved, automatic production is achieved, manual production is omitted, the production efficiency is effectively improved, and the frying quality is guaranteed.

The invention discloses an impeller oil removing fixture which comprises a bottom plate and a cover plate. The cover plate is positioned above the bottom plate and is connected with the bottom plate by positioning columns, and a plurality of screws are arranged between the bottom plate and the cover plate in a connected manner. The impeller oil removing fixture with the structure has the advantages that the fixture is fixed onto a rotary mechanism when used, the cover plate is lifted up, impellers with oil required to be removed sleeve the screws which are arranged on the bottom plate, the cover plate is arranged in a covering manner after the impellers are arranged, a motor can be started, the fixture can rotate, accordingly, the oil on the impellers can be thrown out under the effect of centrifugal force, and oil removing effects can be realized.

The invention relates to a novel crude oil demulsifying agent and a preparation method thereof. A structural general formula of the novel crude oil demulsifying agent is shown as a formula I. The preparation method of the demulsifying agent comprises the following steps: 1) performing acylation modification on chitosan to obtain N-acylation chitosan; 2) performing carboxyl alkylation modificationon the N-acylation chitosan to obtain N-acylated carboxyl alkyl chitosan; 3) performing epoxidation modification on methoxypolyethylene glycol terminal hydroxyl to obtain epoxidation methoxypolyethylene glycol; 4) reacting modified methoxypolyethylene glycol with N-acylated carboxyalkyl chitosan to obtain a target product of methoxypolyethylene glycol grafted N-acylated carboxyalkyl chitosan. According to the novel crude oil demulsifying agent disclosed by the invention, chitosan natural polymer compound is utilized as a raw material; the raw material has the advantages of wide sources, natural performance, no toxin, good biocompatibility, degradation and the like; carboxyalkyl, alkyl and a polyether side chain are guided into a molecular chain of the chitosan; by means of controlling positions and substitution degrees of all substituent groups, a series of high-efficiency demulsifying agents suitable for oil-in-water (O / W) type emulsion can be prepared.

The present invention relates to a kind of method of cleaning oil sludge sand, it comprises the following steps: (1) surfactant, oil phase, water phase, inorganic salt, co-surfactant are mixed and prepared into microemulsion; (2) step (1) ) and mix the microemulsion prepared in the container with the oil sludge sand to be cleaned, and seal the container; (3) stir the mixture in step (2), so that the microemulsion can wash off the oil in the oil sludge sand; (4) The mixture after washing in the step (3) is centrifuged to separate the solid-liquid phase to obtain silt and liquid phase for removing oil, which is a mixture of microemulsion and oil; (5) by the separation in step (4) (6) the microemulsion used once obtained in step (5) repeats the (2)-(5) step; (7) merges The oil part separated in the step (5), and remove moisture.

The invention relates to a chitosan oil-in-water type crude oil demulsifier and a preparation method thereof. A structure general formula of the demulsifier is as shown in formula I, and the preparation method thereof comprises the following steps: 1) performing alkylation modification on chitosan, to obtain alkylation chitosan; (2) performing carboxyalkylation modification on the alkylation chitosan, to obtain alkylation carboxy alkyl chitosan; (3) performing halogenation modification on a terminal hydroxyl of methoxypolyethylene glycol, to obtain halogenation modified methoxypolyethylene glycol; and 4) enabling the modified methoxypolyethylene glycol to react with the alkylation carboxy alkyl chitosan, to obtain methoxypolyethylene glycol grafted alkylation carboxy alkyl chitosan. The demulsifier is capable of using chitosan natural macromolecular compounds as raw materials, and has the advantages of wide source, nature, non-toxicity, good biocompatibility, degradation and the like.A carboxy group, an group and a polyether side chain are introduced into a chitosan molecular chain, and through controlling a position and a substitution degree of each substituent group, a series ofthe efficient demulsifiers suitable for oil-in-water (O / W) emulsion is obtained.

The invention relates to an oil removing machine and provides a filtering-free oil removing machine and a method for removing oil through the filtering-free oil removing machine. The filtering-free oil removing machine is simple in structure and can automatically separate out oil adhering to steel cuttings and is high in oil removing efficiency and good in quality, and separated oil is free of secondary separation and filtering. The technical problems that in the prior art, separated cooling lubrication oil needs secondary separation and filtering, time and labor are wasted, and as small holes of the wall of an oil removing barrel are blocked by metal cuttings in the process, the oil removing barrel is extremely difficult to clean, and the oil removing efficiency and quality are affected are solved. The filtering-free oil removing machine comprises a tank and an oil throwing barrel suspended in the tank, a drive motor is arranged at the position, corresponding to the oil throwing barrel, of the bottom face of the tank, an output shaft of the drive motor faces upwards and drives the oil throwing barrel to rotate, an opening of the oil throwing barrel faces upwards, and a containing cavity of the oil throwing barrel is in a circular truncated cone shape with a large opening and a small bottom.

The disclosure relates to a method and device for non-falling circulation of oily solid pollutants in onshore oil and gas fields, and provides a non-falling circulation method for oily solid pollutants in onshore oil and gas fields. The method includes the following steps: (A) three-stage solid control; (B) Centrifugal drying; (C) cyclone autorotation deoiling; (D) heterogeneous separation of oil, water and gas; and (E) gas purification. Also provided is an onshore oil and gas field oily solid pollutant non-falling circulation device.

The invention discloses a method for deoiling an oil-bearing waste catalyst. The key points of the technical scheme are that the waste catalyst is crushed until the particle diameter is less than 1,000 [mu]m, and the deoiling conditions are that the mass ratio of water to the waste catalyst is (12-6):1, the mass concentrations of NaOH and a surfactant are respectively controlled to be 0.05-3 wt% and 0.01-0.3 wt%, and the deoiling temperature is 40-100 DEG C. When the color of the deoiling cleaning solution does not change obviously, a conventional solid-liquid separation means is adopted to separate the oil-bearing liquid and solid. According to the technical scheme, the deoiling treatment of the oil-bearing waste catalyst is successfully realized, and the method is applicable to deoiling of one or a mixture of more of a hydrodesulfurization catalyst, a hydrodenitrification catalyst and other oil-bearing waste catalysts. The method is low in energy consumption, high in deoiling efficiency, strong in adaptability, low-carbon and environment-friendly, and can effectively avoid generation of difficultly decomposed composite oxide, so as to create favorable conditions for valuable metal extraction and cyclic utilization of the waste catalyst.

The invention relates to a solvent deoiling device, which comprises a deoiling raw material tank, a solvent tank, a deoiling tower and a solvent and under-wax oil collecting tank, the deoiling raw material tank and the solvent tank are connected with an inlet of the deoiling tower, a filter screen is arranged at the bottom of the deoiling tower, and an outlet of the deoiling tower is connected to the solvent and under-wax oil collecting tank, and a heating and cooling jacket is arranged on the outer wall of the deoiling tower. The device is simple to operate, low in cost, wide in adaptability and high in solvent recovery rate and deoiling efficiency.

The invention provides an oil removal system which comprises a primary ultrasonic treatment system, an ultrafiltration membrane device, a secondary thermal distillation treatment system and a water circulation system, the primary ultrasonic treatment system comprises an ultrasonic reaction chamber and a standing tank, the secondary thermal distillation treatment system comprises a reaction kettle, a condenser and an oil storage tank, and the water circulation system comprises a reservoir; a second inlet of the ultrasonic reaction chamber is connected with the reservoir, an outlet of the ultrasonic reaction chamber is connected to an inlet of the standing tank, floating oil collectors are arranged in the ultrasonic reaction chamber and the standing tank respectively, and an outlet of the standing tank is connected to the ultrafiltration membrane device; a first outlet of the ultrafiltration membrane device is connected to the reservoir, and a second outlet of the ultrafiltration membrane device is connected to an inlet of the reaction kettle; a first outlet of the reaction kettle is connected to an inlet of the condenser, and a first outlet of the condenser is connected to an inlet of the oil storage tank. The oil removal effect of the oil-containing silt is improved, the working efficiency is improved, and resources are saved.