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234results about How to "Improve dehydration efficiency" patented technology

Environment-friendly-type polluted oil processing agent

The invention relates to an environment-friendly-type polluted oil processing agent, which is prepared by a surfactant, a flocculating agent and a solvent through uniformly mixing in a mechanical blending mode, the surfactant is a cationic surfactant and/or an anionic surfactant and/or a non-ionic surface active agent and/or an ampholytic surfactant, the flocculating agent is one of polyferric sulfate, polymeric aluminum ferric sulfate, polymeric aluminium and aluminum sulfate, and the solvent is a mixture of one or more of methyl alcohol, ethyl alcohol, ethylene glycol, propylene glycol, propanetriol or ethylene glycol butyl ether. According to the invention, a plurality of surfactants are employed for compounding, so that electrostatic neutralization effect can be generated on the surface of oil droplets, the stability of an emulsion is worse, so that the purposes of demulsification and oil-water separation can be reached, the flocculating agent has the effect for removing small impurity and mud, as well as demulsificating, so that oil removal efficiency can be increased. According to the invention, dewatering efficiency of the polluted oil processing agent is high, the crude oil can be effectively separated from the polluted oil, the pollution of the polluted oil to the environment can be reduced, and the administration cost is saved.
Owner:SHAANXI RES DESIGN INST OF PETROLEUM CHEM IND

Plate-type sludge dewatering machine and dewatering method therefor

The invention discloses a plate-type sludge dewatering machine and a dewatering method therefore. The plate-type sludge dewatering machine adopts elastomers positioned among pressing filter plates, adjacent anti-thrust filter plates, air-inlet filter plates, feeding filter plates and thrust filter plates to form at least three hermetic pressing filter chambers variable in volume, utilizes the compression deformation and resilience of the elastomers to deep squeeze and dewater a filter cake, and adopts sealing plugs which are arranged in front of air-inlet holes of the air-inlet filter plates and the thrust filter plates and are on positions opposite to feeding holes on the feeding filter plates and the anti-thrust filter plates, wherein the feeding filter plates are adjacent and involutory to the air-inlet filter plates. After low-pressure filter dewatering is over and feeding is stopped, the sealing plugs block and seal the feeding holes so as to prevent sludge from flowing back and entering pipelines during pressing filtration. The dewatering method adopts the variable hermetic pressing filter chambers formed by the elastomers to perform pressing filtration and dewatering, and adds the operation of adopting the sealing plugs to block the feeding holes before high-pressure squeezing-dewatering operation. The invention has the advantages of high dewatering efficiency, strong adaptability, low energy consumption, low use cost and the like.
Owner:ZHEJIANG HUAZHANG TECH

A method for producing amino acid bio-organic fertilizer with cassava residue and starch waste liquid

The invention belongs to the field of the manufacturing of organic fertilizers and discloses a method for producing an amino acid microbial organic fertilizer by using cassava residue and starch waste liquor. The method comprises the following steps of: dehydrating the cassava residue and the starch waste liquor until the final water content is 60 to 65 weight percent; adding 8 to 12 weight percent of humic acid, 3 to 7 weight percent of oil cake, 3 to 7 weight percent of rice bran and 0.3 to 0.5 weight percent of straw fermentation decomposing inoculant, and performing aerobic fermentation, wherein the fermentation temperature is 40 to 65 DEG C, and the fermentation cycle is 15 to 20 days; and uniformly mixing a functional strain which accounts for 3 to 5 percent of the total weight and is one or more of Bacillus mucilaginosus, bacillus subtilis, Bacillus licheniformis, Bacillus megaterium and Streptomyces jingyangensis, starch-containing waste liquor which accounts for 2 percent of the total weight and fermented residue, aerating the air and performing late curing for 5 to 7 days, and adding 1 to 3 percent of amino acid to obtain a finished product. Raw materials do not contain harmful bacteria and pathogens, harmful gas and odor are not generated in the fermentation, and the fertilizer can increase effect and stimulate plants to grow quickly.
Owner:云南金星化工有限公司

Corn ear fast air drying machine and method

The invention relates to a corn ear fast air drying machine and method. The air drying machine comprises a drum body; end covers are arranged at the top and bottom of the drum body; a heating bin, a wind homogenizing bin, an air drying bin and an exhaust channel are sequentially arranged in the cavity in the drum from bottom to top; electric heating pipes are arranged at the bottom of the heating bin; a blast hole is formed in the drum body; a wind homogenizing plate is arranged between the heating bin and the wind homogenizing bin; a temperature sensor is arranged in the wind homogenizing bin; a turntable is placed at the inner wall of the air drying bin and is provided with through holes; the drum body is provided with a loading side door convenient to open; a flexible clamping plate is arranged at the inner wall of an air duct cylinder; a temperature sensor and a humidity sensor are arranged in the exhaust channel; a liquid crystal display panel is arranged at the outer part of the drum body. The invention also discloses an air drying method, air outlets for entering the air drying bin are arrayed in sequence, large-flow air flows are formed, the air flows can be used for air drying at inner and outer sides of corn ears, air drying can be fast formed and the air drying speed is improved by more than four times compared with the natural air drying speed.
Owner:MAIZE RES INST SHANDONG ACAD OF AGRI SCI

Method for making leaf vegetable pickled vegetable by dry ice quick-frozen forward/back high pressure broth repeated penetration process

The invention discloses a method for making leaf vegetable pickled vegetable by a dry ice quick-frozen forward/back high pressure broth repeated penetration process. The method is characterized in that a process of separation and air drying of stalk and leaves and a dry ice quick-frozen process are employed for pretreating the leaf vegetable raw material, the leaf vegetable raw material is stored in a freezer at the temperature of -18 DEG C, after a broth is prepared, the forward/back high pressure repeated penetration process is employed for rapidly making the Szechwan leaf vegetable pickled vegetable having a traditional fermentation local flavor. According to the process provided in the invention, the leaf vegetable pickled vegetable raw material can reach the purpose of long-term storage without high salinity pickling, salt amount is reduced by 30%-35%, the content of nitrite is reduced by 90%-95%, no high salinity waste water is discharged, the production efficiency is increased by more than 300%, the serialization, automation, standardization and large scale production of Szechwan pickled vegetable can be realized, and the method provided in the invention has a landmark innovation revolution to a traditional production mode to the Szechwan pickled vegetable.
Owner:XIHUA UNIV

Conveniently-used rapid dehydration device for sludge treatment, and conveniently-used rapid dehydration method for sludge treatment

The invention discloses a conveniently-used rapid dehydration device for sludge treatment. The conveniently-used rapid dehydration device for sludge treatment comprises a box body, one side of the topof the box body is fixedly connected with a top box, one side of the bottom of the inner wall of the top box is fixedly connected with a first motor, one end of the output shaft of the first motor isfixedly connected with a movable rod, one end of the movable rod is rotatably connected with one side of the inner wall of the top box, one side of the top of the inner wall of the top box is rotatably connected with a connecting rod, and the bottom end of the connecting rod sequentially penetrates through the top box and the box body from top to bottom and extends into the box body. The invention relates to the technical field of sludge treatment. The conveniently-used rapid dehydration device for sludge treatment improves the working efficiency of people and realizes rapid and efficient dehydration treatment of sludge, so the treatment of the sludge by people is greatly facilitated; and the top end of every supporting column is fixedly connected with a drying cylinder, so the sludge isdried after being dehydrated, thereby the high efficiency and the fastness of sludge treatment are improved.
Owner:青岛蓝杉知本科技有限公司

Method and device for cyclically treating breeding wastewater and/or improving soil by utilizing livestock and poultry manure

The invention discloses a method and a device for cyclically treating breeding wastewater and/or improving soil by utilizing livestock and poultry manure. The method comprises the following steps: adding a conditioner into livestock and poultry manure for mixing and conditioning; then pre-drying and dehydrating at low temperature to reduce the moisture content to be less than 10% to obtain dried livestock and poultry manure, indirectly heating the livestock and poultry manure in a pyrolysis and carbonization device, indirectly cooling the obtained charcoal powder, and adding the obtained cooled charcoal into breeding wastewater; and forming charcoal particles; the invention can be directly used for soil improvement; part of COD, ammonia nitrogen, phosphorus and other effective elements andantibiotics and other micropollutants can be pre-removed, and the biochemical treatment load of the aquaculture wastewater is reduced; or the invention is used for deep adsorption and purification ofaquaculture wastewater before tail water is discharged. According to the method and device, pollution caused by simple composting of livestock and poultry manure is avoided, comprehensive treatment of breeding waste is fully achieved, and good social benefits, economic benefits and environmental benefits are achieved.
Owner:INST OF URBAN ENVIRONMENT CHINESE ACAD OF SCI

Viscous paste extruding and dehydrating device

The invention relates to a viscous paste extruding and dehydrating device, the applied range of which includes but not limited to urban sludge dehydration and oily sludge solid-liquid separation and drying of an oil field. The device main body manly comprises a dehydrating piston, a filter element scraper device, an end face seal, a dehydrating container and a hydraulic system, wherein the dehydrating piston carries out reciprocal rectilinear motion in a cavity of the dehydrating container so as to extrude and push and discharge materials; the filter element scraper device carries out circumferential rotary motion in the cavity of the dehydrating container so as to clean and auxiliary-dehydrate a filter screen; the end face seal carries out reciprocal rectilinear motion in the cavity of the dehydrating container so as to seal and discharge materials; the dehydrating container is used for separating mud and water by virtue of the built-in filter screen; the hydraulic system provides required power and motion control for the whole viscous paste extruding and dehydrating device. The viscous paste extruding and dehydrating device provided by the invention has the characteristics of little heat consumption, high dehydrating effect, strong material adaptability, high degree of automation control and the like.
Owner:大连容大资源循环利用咨询设计有限公司 +1

Manganese salt sludge conditioner and sludge dewatering method

The invention provides a manganese salt sludge conditioner and a sludge dewatering method. The manganese salt sludge conditioner comprises compounds of bivalent, trivalent, tetravalent and heptavalent manganese; the manganese salts can cause sludge floc flocculation or extracellular organic matter damage; partial bound water is released; in addition, a sludge framework and a dewatering passage can be built. The method for conditioning and dewatering the sludge by using the sludge conditioner comprises the following steps that (1) sludge pretreatment is performed; (2) manganese slat, including single Mn(II) salts or Mn(VII) salts and KMnO4 and NaHSO3(Na2SO3) are added; oxidation-reduction reaction is performed to produce Mn(III) and reaction products of Mn(II), Mn(IV) and Mn(VII) in situ; (3) sludge dewatering is performed; suction filtration or horizontal electric field is used for water removal. The manganese salt sludge conditioner and the sludge dewatering method provided by the invention have the advantages that the dewatering time is short; the operation is simple; pathogenic microorganisms in the sludge are killed in an auxiliary way; the water content of the sludge can be effectively reduced; the safe and sanitation performance of the sludge can be improved.
Owner:BEIJING FORESTRY UNIVERSITY

Solid-liquid separation mechanism capable of adjusting effluent flow rate and sludge concentration and using method thereof

The invention discloses a solid-liquid separation mechanism capable of adjusting the effluent flow rate and the sludge concentration and a using method thereof, and belongs to the field of sludge treatment equipment. The solid-liquid separation mechanism comprises a mixing and flocculating box, the upper portion of the mixing and flocculating box is provided with a discharge port, a fixed support plate and a driving shaft are arranged in the mixing and flocculating box, the driving shaft is sleeved with a stirring shaft frame which is provided with stirring shafts and a pushing rod, the stirring shaft is provided with stirring blades and scraper plates, a water filtering assembly is arranged between the stirring shaft frame and the fixed support plate and comprises fixed rings, gaskets and floating rings, the lower portion of the water filtering assembly is connected with a drainage pipe which is connected with a three-way pipe, the two ends of a straight way of the three-way pipe are each connected with a butterfly valve, and the upper end of the straight way is in threaded connection with a flow rate adjusting pipe and is connected into an external drainage tank; a cleaning pipe is arranged in the mixing and flocculating box and provided with a plurality of water spray nozzles. According to the solid-liquid separation mechanism, the sludge concentration can be increased, and the effluent flow rate and the concentrated sludge concentration can be freely adjusted.
Owner:JIANGSU BOE ENVIRONMENTAL PROTECTION TECH

Intelligent and high-efficient dynamic flocculator mixing condenser

The invention relates to a flocculator mixing condenser, in particular to an intelligent and high-efficient dynamic flocculator mixing condenser, a technical problem to be solved is to provide an intelligent and high-efficient dynamic flocculator mixing condenser capable of mixing uniformly and adjusting the addition amount of the flocculator in real time, the technical scheme is as follows: a mixing container is mounted on a rack, stirring blades are disposed in the mixing container, the stirring blades are installed on a stirring shaft, the stirring shaft is installed at the rack through the bearing seat, an inverter motor is connected to the shaft end, the upper part of the mixing container is provided with a feed port, the lower part of the mixing container is provided with discharge port, a flocculant storage tank is communicated with the feed port sequentially through the solenoid valve and metering pump, flow concentration sensors are disposed on the feed port and the discharge port, a speed sensor is arranged in the mixing container; said inverter motor, the flow concentration sensor and the speed sensor are connected to and controlled by industrial control computers. The flocculator mixing condenser is simple, convenient and widely used in the flocculation mixing agent.
Owner:山西益尔利环保设备工程技术有限公司

Leather belt grooving apparatus and method

The invention relates to a belt slotting device and a belt slotting method, which can improve the manufacturing quality of a belt provided with a slot. The slotting device comprises a slotting cutter which is made of electrically conductive metals, wherein the cutter is connected to a heating transformer, and the heated cutter performs heat slotting operation on the belt; the heating transformer is arranged on a tool bar, and the tool bar is rotatable and connected with a planker which is connected with a transmission screw rod through a transmission nut; the transmission screw rod is arranged on a main cross beam, connected with a motor through a belt pulley and a triangle belt, and driven to rotate, so that the cutter is driven to move transversely along the axial direction of the transmission screw rod; both ends of the main cross beam are arranged on a pair of upright posts through adjusting bolts; lower parts of the upright posts are provided with pulleys; and the pulleys can move vertically on a vertical movable track and drive the cutter to perform vertical movement, so that the continuous slotting is performed backwards. The device and the method for manufacturing the belt provided with the slot by performing continuous slotting on a flat belt are time and labor saving, and not only reduce the manufacturing cost but also improve the manufacturing quality of the belt.
Owner:上海旭和环境设备有限公司

Split concentration belt filter press and sludge dehydration process

The invention discloses a split concentration belt filter press and a sludge dehydration process. The split concentration belt filter press comprises a feed dehydrating device and an extrusion dehydrating device which are not connected with each other, wherein the feed dehydrating device comprises a dynamic mixer, a material distribution bucket and a slope type gravity dehydration mesh belt; the dynamic mixer comprises a bottom feed inlet, a top overflow pipe and a spiral stirring unit; and the outlet of the overflow pipe is communicated with the material distribution bucket. Since the dynamic mixer is employed for full mixing of sludge and a flocculating agent, the utilization rate of the flocculating agent is increased, consumption is reduced, and a dehydration rate is improved. Mixed sludge undergoes gravity dehydration by the slope type gravity dehydration mesh belt and are then successively subjected to pre-dehydration by an L-type pre-extrusion zone of the extrusion dehydrating device and to in-depth dehydration by a squeezing zone of the extrusion dehydrating device, so the dehydration rate of a sludge product is further improved. The split concentration belt filter press provided by the invention has the advantages of the high utilization rate of the flocculating agent, the high dehydration rate, greater sludge treating capability, etc.
Owner:广州绿鼎环保设备有限公司
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