440results about How to "Improve dehydration rate" patented technology

The invention relates to a rapid emulsion breaking method, including microwave radiation. Emulsion breaker is added according to the water content of the rolly oil (calculated by weight percent), the mass ratio of the water and emulsion breaker is 1:0.5*10-4 to 5*10-4, and microwave is adopted for emulsion breaking. The emulsion breaker is one or more than two types of mixtures of polyamine polyoxy-propylene polyoxyethylene ether, resin polyoxy-propylene polyoxyethylene ether, higher-alcohol initiator emulsion breaker or propylene glvcol emulsion breaker. The microwave radiation and microwave radiation frequency are 2450MHz or 915MHz. Under the synergistic reaction, water-in-oil emulsion liquid is broken within a relatively short period, a bigger anhydration rate is achieved, and the emulsion-breaking efficiency is improved. In the circumstance of a little emulsion breaker, microwave radiation breaking method can be adopted, and the emulsion breaking speed is increased by 1-2 orders of magnitude compared with the traditional emulsion breaking by heating. The method is easy to implement, energy efficient, rapid in emulsion breaking, and the emulsion breaking effect is good.

The invention relates to a kitchen waste pretreatment equipment and technology. The equipment is characterized by comprising a shell body, a garbage can lifting device mounted on one side of the shell body, a feeding device mounted on the upper portion of the shell body, an automatic separation device mounted in the shell body, an extrusion device mounted in the shell body, a smashing device mounted in the shell body, a fermenting and drying device mounted in the shell body and an ionization deodorization device mounted in the shell body. The kitchen waste pretreatment equipment and technology has the advantages of feeding and sorting automatically, being good in solid-liquid separation effect, high in efficiency, high in dehydration rate, high in fermentation treatment speed, even in fermentation, high in heating speed, capable of oxygenating automatically during fermentation, up to standard on gas deodorization, environmentally friendly, free of pollution and convenient to operate, saving manpower and the like, can process the kitchen waste generated by 300 to 500 people in 24 hours, and output 150kg to 200kg organic fertilizer with the moisture content not more than 25%.

The invention discloses an efficient desulfurization single-tower double-circulation system and method. The efficient desulfurization single-tower double-circulation system comprises a primary slurry pool in a desulfurization tower and a secondary slurry pool outside the desulfurization tower, and the two slurry pools are connected by virtue of a pipeline, so as to form a multiregion pH control double-circulation desulfurization system, wherein limestone slurry is supplemented from the secondary slurry pool to the primary slurry pool, and cypsum slurry is discharged from the primary slurry pool of the desulfurization tower. According to the efficient desulfurization single-tower double-circulation system, the region control can be performed on the pH of the two slurry pools, the slurry at different spraying layers is respectively supplied by the two slurry pools, the slurry with a high pH value is favorable for absorbing SO2, so that the desulphurization efficiency of a desulfurization system is more than 99%, and the slurry with a low pH value is favorable for sulfite oxidation and gypsum crystallization, so that the gypsum dehydration rate and the gypsum purity are increased.

The invention provides a sludge conditioning agent, an application thereof and a method for conditioning sludge. The sludge conditioning agent comprises a geopolymer and other conditioning additives. On one hand, the addition of the geopolymer remarkably improves a flocculation reaction of the sludge conditioning agent on the colloidal particles in the sludge conditioning process and improves the sludge dewatering effect, and on the other hand, toxic substances such as metal ions can also be surrounded in a cavity between the geopolymer molecules, so that a detoxification effect is achieved; meanwhile, the geopolymer can remarkably reduce the use of ferric chloride, quicklime and the like, so that the cost can be reduced, the corrosion of the ferric chloride on a pipeline in the mechanical dehydration process and the blockage of the quicklime on the pipeline and a filter cloth can be reduced.

The invention discloses a high-concentration organic sludge treatment method. The high-concentration organic sludge treatment method comprises the following steps: preparing organic sludge, performing ozone pretreatment, chemically tempering, performing diaphragm pressure filtration for deep dewatering, granulating the sludge, drying by using a low-temperature heat-pump dehumidifying drying machine, sending the dried sludge into a sludge bin, doping biomass fuel, performing oxygen-enriched combustion, and converting, recycling and applying combustion heat, steam and slag. The whole treatment method is conveniently matched with a full-automatic control system to enhance convenience in management and operation, and the treatment method has a high sludge-dewatering rate, a high sludge combustion utilization rate and high treatment efficiency; closed treatment is adopted in the steps, so that zero exhaust heat emission and zero noise pollution are ensured and the treatment method is more energy-saving, more environment-friendly and safer; sterilization and harm-removing treatment is performed on the sludge in many links, so that the fact that tail gas emission reaches the standard is ensured; sludge incinerating heat is used for generating electricity which is returned to sludge treatment equipment, so that the operating cost is reduced, economic benefits are improved, and sludge reduction from a source, harmless treatment, resource utilization and sludge recycle are really realized.

The invention relates to a dehydration method and a dehydration device of tailings. The dehydration device mainly comprises a cyclone, a thickener, a vacuum belt filter and a sedimentation basin. A tailing slurry discharged from an ore dressing workshop go through the cyclone, the thickener and the vacuum belt filter in order to form dry materials which are placed in a stock dump. And a flocculating agent adding system is installed between the thickener and the vacuum belt filter. The sedimentation basin is connected to a collection basin used for collecting the clear water overflowing from the sedimentation basin, and then the clear water come into the ore dressing workshop for recycling. With the dehydration method and dehydration device of tailings, risks from dehydration with a tailing dam can be eliminated, so that accidents are effectively avoided. Meanwhile, the device of the invention has low investment, low running cost and high dehydration rate.

The invention belongs to the technical field of petrochemical industry, and particularly relates to a method and an apparatus for high-efficient crude oil desalination / dehydration by a combined filtration-electric field coalescence method. The apparatus for high-efficient crude oil desalination / dehydration of the invention comprises a raw material conveying system, a mixing device, a dehydration filtration device, and an electrical desalting device which are connected in order. The method for high-efficient crude oil desalination / dehydration of the invention is realized by using the apparatus for high-efficient crude oil desalination / dehydration of the invention and through the steps of raw material preheating, mixing, preliminary demulsification, and electrical desalination / dehydration. The invention adopts a combined filtration-electric field coalescence method for crude oil desalination / dehydration, which can overcome respective disadvantages of performing desalination / dehydration process by a filtration method or an electric field coalescence method, decrease running severity of both the two methods, not only improves the adaptability of the crude oil desalination process, the desalination / dehydration rate, and the stable running rate, but also reaches the purposes of energy saving and consumption reduction.

The invention discloses a method for improving the dehydrating property of the sludge and equipment thereof. The method is to adopt an inner embedded type electromagnetic swirling wing sludge conditioner arranged in the sludge pipe or an external magnet-rotary sludge conditioner arranged on the sludge pipe to quench and temper the sludge, so as to achieve the purpose of sludge specific resistance reduction and sludge dehydrating property improvement. After the method and the equipment are implemented, the water content of the final dewatered sludge (mud cake) can reach 70-80% which reduces by 2-15% comparing to the technology without conditioner treatment. The work efficiency of the dewaterer is greatly improved, the energy consumption of the dewaterer is reduced by 5-40% and the reagent dosing is reduced by 5-100%. The method and equipment of the invention are not only suitable for the transformation of the old equipment in the prior sludge treatment, but also suitable for the establishment of the new equipment.

The embodiment of the invention provides a sludge dewatering device, belonging to the field of sludge processing equipment. The sludge dewatering device comprises a stand, an anode roller, a cathode filter screen, a guide roll and a drive roll. The anode roller is a metal roller, is arranged in the stand, and is electrically connected with an anode of a power supply. The cathode filter screen is a non-metal spiral screen, a plurality of metal wires pass through a spiral cylinder of the non-metal spiral screen to be used as conductive bodies, each metal wire crosswise passes through the non-metal spiral screen, both ends of each metal wire extend outside the non-metal spiral screen, and each metal wire is electrically connected with a cathode of the power supply. The drive roll and the guide roll are arranged on the stand, the cathode filter screen is arranged on the drive roll and the guide roll and driven by the drive roll, and a part of the cathode filter screen surrounds the outside of the anode roller and forms a gap extruding sludge with the anode roller. The flow area of the cathode of the sludge dewatering device is large, the dewatering efficiency is improved, and the service life of the cathode filter screen is prolonged.

The invention discloses a quick petroleum deemulsifier and a preparation method thereof. The method comprises the following steps of: (1) performing esterification reaction on polyethylene polyamine, nonylphenol ethoxylates, and diethanol amine polyether with acryloyl chloride respectively to obtain acrylic acid polyethylene polyamine polyether ester, acrylic acid nonylphenol polyether ester, and acrylic acid diethanol amine polyether ester respectively; and (2) performing free radical polymerization reaction on the acrylic acid polyethylene polyamine polyether ester, acrylic acid nonylphenol polyether ester, acrylic acid diethanol amine polyether ester, methacrylic acid, and butyl acrylate in water in presence of initiator under the anaerobic condition, and performing termination reaction by using a terminator to obtain the quick petroleum deemulsifier. The deemulsifier has high dehydration rate in a very short time period, and is suitable for development of offshore oil fields; and the preparation method has the characteristics of low requirement on processing equipment and is easy to operate.

The invention discloses a method and device for solidifying sludge by virtue of a vacuum electric osmosis combined dynamic load. The method comprises the steps of placing sludge to be solidified into a sludge tank of a solidifying device, arranging a cathode tube passing through the bottom of the tank in the center of the sludge tank, sealing the top end of the cathode tube, forming a group of uniformly-distributed water seepage holes in the middle section of the cathode tube, coating a layer of geotechnical cloth outside the cathode tube, connecting the bottom end of the cathode tube and an air inlet of a vacuum pump through a hose, and connecting an air outlet of the vacuum pump and a water storage tank through a hose; inserting a group of uniformly-distributed anode bars at the periphery of the sludge tank; arranging a vibrator at the top of the sludge to be solidified; and when the sludge to be solidified is needed to be solidified, turning on a switch of a direct-current power source, starting the vibrator, meanwhile, starting the vacuum pump to generate negative pressure in the cathode tube, and pumping water permeating into the cathode tube into the water storage tank. By using the method and device, heavy metals in sludge can be driven to be migrated into the cathode tube along with water under the action of an electric field so as to be discharged; and the vacuum pump operates at different intervals, so that the energy consumption can be reduced.

The invention relates to a flavor grapefruit peel dish, which has the advantages that the grapefruit peel can be effectively recovered and reused; the economic benefits are improved; the shelf life of the grapefruit peel is prolonged; meanwhile; the salt content of a finished product is reduced through a low-temperature dehydration process; through the dehydration treatment, 90-percent of nitrite is effectively removed. Rich saccharides, mineral substances and vitamin are contained in the finished product; the nutrition values and the health care functions of the grapefruit peel are combined; the effects of clearing away heat and toxic materials, diminishing inflammation, promoting urination, softening and expanding blood vessels and the like are achieved; the human body disease-resistant capability is favorably improved; the occurrence of the cardiovascular system diseases can be prevented. The added value of the grapefruit peels is greatly mined; further, the industrialization system of the grapefruit processing is completed; a great number of grapefruit peels can be recovered and utilized; the resource waste is reduced; the rich paths are also provided for the human diet nutrition and health.

A washboard-type drum washer comprises a housing, a water tank and a drum arranged in the housing, a rotation shaft arranged at the bottom of the drum and a drive motor connected with the rotation shaft. The drum washer is characterized in that a plurality of axial densely-arranged ribs are provided on the inner wall of the drum, and water drain holes are provided among the ribs. The washing method provided by the invention can repeatedly scrub the clothes by using the ribs provided on the drum, and the clothes can be further scrubbed after rotating to change the position, so that the clothes can be washed like hand washing on a washboard by scrubbing and rotating the clothes by multiple times, thus saving water and improving the cleaning ratio. High dewatering rate can be obtained by high-speed drying by arranging the water drain holes among the ribs. The ribs stamped on the drum can improve the strength and the rigidity of the drum, thus improving the service life of the washing machine.

The invention relates to the technical field of sludge dehydration property improvement and particularly relates to a method for treating sludge by use of a polyaluminum chloride and ultrasonic combining technology. The method comprises the following steps: adjusting the pH value by use of sodium hydroxide, adding polyaluminum chloride and stirring uniformly with a stirrer; treating for 5-10min with a frequency of 26-70kHz; and performing centrifugal filtration treatment with a centrifuge. By adopting the method, the dehydration property of sludge is improved, and the sludge storage capacity is reduced; and moreover, the energy consumption of treatment is relatively low, the removal rate of water is not less than 38.7%, the water content of sludge is reduced to be not higher than 60%, and the sludge dehydration property is improved by 5-9% over the traditional sludge dehydration property.