271results about How to "High oil removal efficiency" patented technology

A composite flocculation oil removal agent for treatment of oil-containing sewage is prepared by compounding the following components, by weight, 50-90% of aluminum sulfate, 5-20% of magnesium chloride, 4-20% of magnesium hydroxide, 0.5-5% of bentonite and 0.5-5% of polyacrylamide, wherein all the components are crushed and mixed together at normal temperature.

The invention relates to an equidirectional drainage reverse taper type high-efficiency rotational flow separator, which mainly solves the problems of poor separation effect of tiny oil drops, large volume and inconvenient installation of the traditional hydraulic cyclone separator. The invention is mainly characterized in that a rotational flow cavity section, a large taper section, a small taper section, a tail pipe section and an outlet section are successively distributed between upper and lower sealing faces; the components form a rotational flow cavity body gradually converged towards the central axis after being successively connected; a tapered thimble in the rotational flow cavity body is fixed on inner side surface of the upper sealing face; the taper top of the tapered thimble points to one side of the lower sealing face; an oil outlet pipe is vertically and fixedly connected to the lower sealing face through the center of the lower sealing face; the pipe orifice of the oil outlet pipe is positioned on the lower part of the taper top of the tapered thimble; and a water outlet pipe is horizontally connected to the bottom end of the outlet section along the tangential direction of a cycle. The rotational flow separator has the characteristics of good elimination effect on the tiny oil drops. Compared with the traditional hydraulic rotational flow separator, the rotational flow separator has the advantages of stable flow field and high separation efficiency, and is convenient for technological installation.

The invention discloses a gas-oil-water three-phase separator which comprises a horizontal tank body (1) and a crude oil input tube (2), wherein a liquid steady flow plate (4) and a baffle (5) are sequentially erected in the tank body (1) from left to right so as to sequentially divide the interior of the tank body (1) into a separating area (A), a liquid collecting area (B) and an oil collectingarea (C); a gas collecting area (D) is arranged above the baffle (5); the bottom of the tank body (1) is provided with a drain tube (14), the top of the tank body (1) is provided with a convex gas collecting bag (11), and the right side end of the tank body (1) is provided with an oil drain tube (3); moreover, a sleeve-type cyclone separator (6) is arranged in the separating area (A) and comprises an outer sleeve (61) and an inner sleeve (62) which are concentrically arranged and parallel and level at the top; a gas-liquid separating area (A1) is arranged between the outer sleeve (61) and theinner sleeve (62); and a gas-water mixing area (A2) is arranged in the inner sleeve (62). Compared with the prior art, the gas-oil-water three-phase separator provided by the invention has the advantages that the repair and maintenance are labor-saving and convenient; for the same crude oil throughput, the volume of the horizontal tank body can be reduced, the gas-oil-water separating efficiency is obviously improved, and the separating effect is more ideal.

The invention discloses a spinning oil fume purifying device, which belongs to the technical field of synthetic fiber. The spinning oil fume purifying device comprises a shell; multiple anode tubes are vertically arranged in the shell; a cathode line is vertically hung in the centre of each anode tube; the upper part of each anode tube is inserted into an upper card, and the lower part of each anode tube is inserted into a lower card; the upper and lower cards, the outer walls of the anode tubes and the inner wall of the shell surround a closed cavity; the upper part of the cavity is communicated with a heat tracing steam inlet on the side wall of the shell; and the lower part of the cavity is communicated with a heat tracing condensed water outlet on the side wall of the shell. When oil fume passes through the anode tube, the oil fume particles mixed in the fume are charged under the action of an electric field and then adsorbed on a cathode and an anode. Through the invention, the accumulated oil stains are heated to 70-120 DEG C by the steam heat tracing so that the fluidity of the waste oil stains is maintained and the oil stains can smoothly flow into an oil collector on the bottom of the device,thereby guaranteeing the operation stability of the equipment and laying a good foundation for the collection of waste oil. The purifying device of the invention has notably good purifying effect and ensures that 95% of the oil fume in the waste gas can be removed.

The invention belongs to the field of cleaning of oil base drilling cuttings, and particularly relates to an oil base drilling cuttings cleaning agent and a cleaning method thereof. The oil base drilling cuttings cleanings agent contains an epoxypropane or ethylene oxide nonionic surfactant, a sulfate or sulphosalt negative ion surfactant, short chain alcohol, sodium silicate, sodium salt except sodium silicate and water. The invention provides an oil base drilling cuttings cleaning agent which is high in oil removal efficiency, convenient in operation and low in cost and can be used repeatedly and a cleaning method thereof.

The invention relates to a coalescence material. The technical scheme is that: a polypropylene coalescence material is modified by polyvinylidene fluoride, nano-calcium carbonate, glass fibers and a 1010-antioxidant and the modified formula is formula a or formula b. According to the formula a, the mass part ratio of polypropylene, polyvinylidene fluoride, nano-calcium carbonate, glass fibers and 1010-antioxidant is 71.5%: 4%: 3%: 20%: 1.5%. According to the formula b, the mass part ratio of polypropylene, polyvinylidene fluoride, nano-calcium carbonate, glass fibers and 1010-antioxidant is 77.5%: 6%: 5%: 10%: 1.5%. According to the above formula a or formula b, the coalescence material is prepared by the steps of mixing the above components according the mass part ratio in the above formula a or formula b; mixing the raw materials uniformly at the temperature of between 50 and 80 DEG C; granulating the raw materials in a granulation machine; and drying at the temperature of between 50 and 95 DEG C after granulating so as to prepare a granular master batch of a polypropylene-modified coalescence material, wherein the working temperature of the granulation machine is between 165 and 185 DEG C; and the grain size is less than 3 mm. The coalescence material is better in balance between hydrophilic and lipophilic performances and is beneficial to the coalesce separation of oil droplets in the water.

The invention discloses a range hood. The range hood comprises a case. An air duct allowing smoke to pass through is formed in the case. A second high-voltage static lampblack removing device, a draught fan, a first high-voltage static lampblack removing device and an oil collecting box are mounted in the air duct in sequence from top to bottom. The first high-voltage static lampblack removing device comprises a set of positive plate electrode and negative plate electrode, wherein the positive plate electrode and the negative plate electrode are matched with each other and arranged oppositely. The draught fan is mounted in the air duct by means of a draught fan box, and an oil collection belt is arranged on the inner wall of the draught fan box. The second high-voltage static lampblack removing device comprises at least one positive plate electrode and at least one negative plate electrode, and each positive plate electrode and the corresponding negative plate electrode opposite to the positive plate electrode form an electric field. The oil collecting box is located below the bottommost negative plate electrode of the first high-voltage static lampblack removing device. The lampblack removing rate of the range hood can reach 98.5%, and the range hood is convenient to clean and maintain.

The invention relates to a band type oil removal device. The band type oil removal device comprises a stander, wherein a scraping plate, a motor and a driving drum are mounted at the upper end of the stander, the driving drum is connected with the motor, a portal frame is mounted at the lower end of the stander, a first support shaft is arranged on the portal frame in a penetrating manner, the first support shaft is sleeved with a first driven drum, transverse rods are respectively fixed at two ends of the first support shaft, a second support shaft is fixed between the two transverse rods, the second support shaft is sleeved with a second driven drum, and an oil absorption band is arranged among the driving drum, the first driven drum and the second driven drum. The band type oil removal device has the advantages that the structure is simple, the use is convenient, the cost is low, the contact time between the oil absorption band and the oil is long, the oil absorption quantity is large, the side end of the oil absorption band has a support force, an action force between the scraping plate and the oil absorption band is large, and the oil removal efficiency is high; the band type oil removal device has excellent social and economic benefits.

The invention discloses an allocating method of composite flocculating degreaser for disposing the effluent with oil, which comprises the following parts: 50%-90% aluminium sulfate, 5%-20% magnesium chloride, 4%-20% magnesium hydroxide, 0. 5%-5% alta-mud and 0. 5%-5% polyacrylamide, wherein the materials are grinded and blended under normal temperature. The invention uses little raw material with high degreasing efficiency, simple preparation and low cost, which is especially for disposing the effluent with kinds of oil and predisposing the effluent of oil field.

The invention belongs to the technical filed of oil field sewage treatment, and in particular relates to a high-temperature high-salt resistant thick oil thermal recovery sewage degreasing agent which is compounded from a dication surfactant, activated silica, sodium carboxymethylcellulose and water, wherein the dication surfactant is a symmetric molecule with long-carbon-chain alkyl and biquaternary ammonium salt cation polar groups. The degreasing agent provided by the invention has the characteristics of simple preparation process, low cost and good temperature and salt resistance, the mineralization resistance degree of the degreasing agent can be up to 250000mg/L, the temperature resistance of the degreasing agent is up to 250 DEG C, and a good degreasing effect can be achieved; the degreasing rate of thick oil thermal recovery sewage can be greater than 96%, and compared with that of a conventional agent, the degreasing rate of the degreasing agent is increased by more than 40%. Therefore, the degreasing agent can be widely applied to degreasing processes of thick oil thermal recovery sewage.

The invention discloses a single tin salt electrolytic coloring additive. The single tin salt electrolytic coloring additive comprises a complexing agent, a buffer agent, an antioxidant and a surfactant, wherein the antioxidant comprises ferrous sulfate; the single tin salt electrolytic coloring additive also comprises an auxiliary agent containing ferrous sulfate; the auxiliary agent comprises modified amino amide zinc phosphate. The single tin salt electrolytic coloring additive disclosed by the invention has good comprehensive performances, solves the problem that nickel must take part in the reaction in an electrolytic coloring process, and is stable in groove liquid and quick and uniform to color, and the cost can be lowered effectively. Moreover, the single tin salt electrolytic coloring additive is low-carbon, energy-saving and green and environment-friendly, and process and product quality consistent to those of a double salt system can be obtained.

The invention relates to a deoiling-dephenolization combined treatment method for high-concentration phenol ammonia wastewater and a system. The treatment method comprises the following steps: (1) carrying out gas floating deoiling on a coke oven flue gas; (2) carrying out oil-water separation; (3) carrying out pressurized extraction dephenolization. A treatment system comprises a gas floating tank, an oil-water separator, an extraction device, a recycling tank and a flue gas buffer tank. As the coke oven flue gas is adopted as a foaming gas, the deoiling efficiency can be improved by virtue of nonpolar characteristics of carbon dioxide in the coke oven flue gas and the waste heat of the coke oven flue gas, and the acid gas carbon dioxide can be subjected to saturated absorption while deoiling is carried out; by changing the pH value of a solution, phenolate in wastewater can be induced to release phenolic substances of rich molecule modes, the allocation coefficient of the phenolic substances in an extraction agent can be increased, and the extraction efficiency can be improved; finally, through synergetic effects of gas floating deoiling and acidification and extraction procedures, the wastewater treatment efficiency is greatly improved, and three purposes can be achieved with one stroke.

The present invention discloses a liquid-state hydrocarbon waste alkali liquid treatment method, which comprises: removing oil substances from a waste alkali liquid, carrying out a high temperature wet oxidation treatment, adjusting the alkali concentration of the waste alkali liquid, recovering sodium carbonate, carrying out evaporation concentration so as to further improve the alkali concentration in the solution and recover the remaining sodium salt, and reusing the treated waste alkali liquid. With the method of the present invention, the COD and the sulfides in the waste alkali liquid can be efficiently removed, the concentration difference of the sodium carbonate and the sodium sulfate in the solution being subjected to the high temperature wet oxidation treatment is utilized to recover the sodium salt in two times, the sodium hydroxide solution obtained after treating the waste alkali liquid is recycled, and the zero emission of the liquid-state hydrocarbon waste alkali liquid is achieved.

A dissolved air flotation tank comprises a tank body, an upper head, a lower head, a pack mounting rack and a conical barrel, wherein coalescent pack and a taper tube are arranged on the pack mounting rack, a blowdown pipe is arranged on the lower side of the taper tube, an outer barrel is arranged on the upper side of the taper tube, an inner barrel is arranged in the outer barrel, a cyclone water inlet pipe is welded tangentially on the side wall of the inner barrel, an insertion pipe is inserted in the cyclone water inlet pipe and connected with a static mixer and a water inlet, a dross outlet is formed in the upper head of the tank body, and the blowdown pipe is arranged on the lower head of the tank body; a closed water purification area is formed between the conical barrel and the lower head, a plurality of water distribution square tubes communicating the tank body with the water purification area are arranged uniformly on the lower surface of the conical barrel; the water purification area is provided with a water outlet in the side wall of the tank body. An air flotation technology, a cyclone separation technology and a coalescence-separation technology are combined, and the dissolved air flotation tank further has the advantages of occupying small area and being low in cost, high in oil removal efficiency, simple and convenient to operate and high in reliability.

The invention discloses a single-stage, multi-stage and variable-stage rotational flow air floatation oil-containing sewage treatment device, which comprises an outer shell comprising all stages of cylinder bodies, an upper seal head and a lower seal head, an inlet and outlet pipeline part comprising all stages of overflow pipes, all stages of reflux pipes, an underflow pipe and a central verticalpipe, and an internal structure comprising all stages of water distribution pipes, all stages of flow guide plates, annular channels and treated water collecting plates, wherein the first-stage overflow pipe is positioned at the top of the upper seal head, other overflow pipes are positioned on the upper side surfaces of various stages of the cylinder bodies, the underflow pipe is positioned at the lower seal head, various stages of the reflux pipes penetrate through various stages of the cylinder bodies and are communicated with various stages of the annular channels, the central vertical pipe is located on the axis of the cylinder bodies and penetrates through the lower seal head, the annular channels and various stages of the cylinder bodies, the first-stage water distribution pipe ispositioned at the top of the central vertical pipe, other water distribution pipes are positioned at the bottoms of the annular channels, various stages of the flow guide plates spirally incline upwards and are fixed on the inner walls of various stages of the cylinder bodies, and the treated water collecting plate is positioned between the two cylinder bodies. The device of the invention is compact in structure, easy and convenient to operate, wide in applicability and good in oil removal effect, wherein the single-body multi-stage design meets the requirements of different effluent qualitiesand treatment capacities.

The invention provides a complete device and method for enhancing oil-water separation by combining fiber particles and double bubbles, and the complete device comprises a demulsification filtering unit and a rotational flow air flotation unit; the demulsification filtering unit is an oleophylic and hydrophobic fiber filter, and the interior of the demulsification filtering unit comprises a plurality of stages of fiber particle beds from top to bottom, and the demulsification filtering unit is used for coalescing, demulsifying and separating emulsion; the rotational flow air flotation unit is a double-bubble jet rotational flow type air flotation device, an air flotation inner cylinder is arranged in the air flotation device, and a first-stage bubble generator and a second-stage bubble generator are sequentially arranged in the air flotation inner cylinder from bottom to top and used for generating bubble groups and separating oil and water under the air flotation effect; a circulating injection mechanism comprising an entrainment nozzle is arranged on the air floatation inner cylinder, a swirling flow field is formed in the air floatation inner cylinder, and liquid drop collision and separation are accelerated; oil-water separation is enhanced through coupling of the circulating injection mechanism, the first-stage bubble generator and the second-stage bubble generator. The complete device and the method have the advantages of stable operation, wide adaptability, high oil-water separation efficiency and the like.