92results about How to "Improve precipitation efficiency" patented technology

The invention discloses a method for dewatering a large-area foundation pit on a silt stratum, which belongs to modification of existing methods of dewatering light well points and includes the steps: firstly, setting well points, and determining spacing and depth of the well points according to dewatering depth and dewatering area; secondly, constructing the well points; thirdly, installing a dewatering system; fourthly, cleaning up wells; fifthly, operating the dewatering system to pump water; sixthly, regionally repeating the steps from one to five for dewatering a large-area foundation pit, lowering the water level to an expected depth, and maintaining the water level; seventhly, dismantling the dewater system within the foundation pit, maintaining the system to operate until the foundation pit is backfilled above the underground water level, and maintaining the underground water level to meet demands during construction; and eighthly, dismantling the foundation pit and maintaining the dewatering system. Mutual coupling among the well points is fully utilized, so that dewatering efficiency is improved. Compared with conventional light well point dewatering methods, the method is short in construction period, low in manufacturing cost and effective.

The invention relates to a method for strengthening the soft foundation with dual-vacuum self-load coupled prestress and power compress, wherein said method comprises: building coffer around the ground; blowing slurry into coffer; laying working cloth and bamboo rods on the slurry surface; the bamboo rod is inserted with plastic discharge plate, vacuum horizontal tube network, vacuum prestress system, and thick soil sealing layer, while the vacuum prestress system vacuums; the mud sealing layer is arranged with vacuum well precipitation system; the electroosmosis tube is inserted at the inner side of vacuum well tube, and mounting electroosmosis system to connect the vacuum well tubev and the cathode of electroosmosis system, and connect the electroosmosis tube and the anode of electroosmosis system to form direct-current loop, and starting the vacuum electroosmosis precipitation; when the vacuum electroosmosis precipitation is end, taking away the electroosmosis tube and the vacuum well tube, and laying one layer of stuff on the ground, to start the first low-energy concrete strengthen, and after two or three times of said process, ending the low-energy concrete strengthen; vibrating and milling, flattening the ground. The invention can process the soft foundation and the slurry layer synchronously, with low solidify period.

A fluidized bed reactor is disclosed. The fluidized bed reactor includes a reaction pipe comprising silicon particles provided therein; and a reaction gas supply unit configured to supply reaction gas comprising silicon elements to an internal space of the reaction pipe along a reaction gas channel, and wherein inert gas flows in the reaction gas channel.

The invention discloses a polyamide waste recovery process, which comprises the following steps: adding polyamide waste into a compound solvent, heating to 50 DEG C to a solution reflux temperature, stirring until the polyamide waste is dissolved, carrying out decolorization treatment, and filtering to obtain a polyamide solution; adding the polyamide solution into water, precipitating polyamide in deionized water to separate out a solid, and separating to obtain recycled polyamide; wherein the compound solvent is prepared from the following components in parts by weight: 10 to 30 parts of phenol and 15 to 40 parts of methylbenzene. According to the invention, the solvent system mainly comprising phenol/toluene has the following advantages: 1, the solvent phenol can carry out secondary endcapping on polyamide, so the end capping rate is improved, and the hydrolysis resistance, alcoholysis resistance and aging resistance are improved; 2, polyamide can be fully separated out when the polyamide solution is added into deionized water, and the obtained polyamide is good in crystallization property; and 3, the phenol/toluene solvent system is low in volatility and irritation, relativelylow in damage to equipment under a high-temperature condition, green, environment-friendly and pollution-free.

The invention provides a chicken product prepared by restructuring ground meat. The chicken product comprises the following raw materials in weight parts: 82.01-90.21 parts of chicken meat, 3.57-16.89 parts of water, 0.37-1.37 parts of transglutaminase, 0.75-0.95 part of casein and 0.1-3.3 parts of starch. The invention further provides a processing method of the chicken product. According to the chicken product, the enzyme reaction is catalyzed by adding transglutaminase and sodium caseinate; transglutaminase is a transferase and can catalyze acyl transfer reaction and cross-linking reaction between amide groups and primary amines of glutamine residues in peptide or protein groups to bond small blocky ingredients together; the casein is mainly used for improving the effect of separating salt-soluble protein from the chicken meat, promoting the enzyme reaction with transglutaminase, improving the efficiency of separating the salt-soluble protein from the chicken meat and enhancing the restructuring effect of transglutaminase.

The invention relates to a continuous forced drainage and compaction combined soft foundation treatment technical method. According to the continuous forced drainage and compaction combined soft foundation treatment technical method, spring soft downcast pipes are transversely arranged at a certain intervals in a certain depth range inside a soil mass according to a reinforcing depth of dredger fill and a soil mass permeability coefficient, both ends of the spring soft downcast pipes are connected with a vacuumizing device by sealing devices and a transverse drainage system is formed inside the reinforced soil mass to carry out forced drainage; after the groundwater level of the field is descended to the position at a distance of 2 to 4m from the ground, drainage consolidation of a foundation is accelerated by repeated variable-energy compaction. The drainage system used by the method is arranged inside the reinforced soil mass; a drainage effect is obvious; in the compaction construction, drainage is synchronously carried out; dissipation of an excess pore water pressure caused by compaction is greatly accelerated; quench time of compaction is shortened; combination of the forced drainage and dynamic compaction technical advantages is realized; the continuous forced drainage and compaction combined soft foundation treatment technical method has the advantages of short construction period, good reinforcing effect, low cost, resource saving and the like.

The invention discloses a processing method of a rubus rosaefolius smith-pomegranate seed nutritional powder. The rubus rosaefolius smith-pomegranate seed nutritional powder takes rubus rosaefolius smith and pomegranate seed as main raw materials, and is processed by the steps of raw material preparation, composite enzyme treatment, ultrasonic extraction, blending, homogenization, degassing and sterilization, concentration and drying, crushing and filtering and the like. Raw materials are soaked with a soaking liquid after the raw materials are mixed, so that the loss of nutrient substances is avoided; beating is carried out after soaking, the slurry is subjected to composite enzyme treatment, decomposition of raw material tissue cells is promoted, the separation efficiency of the raw material nutrient substances is increased, and thus the utilization rate of the raw materials is increased, and the finished product rubus rosaefolius smith-pomegranate nutritional powder is balanced in nutrition, delicious in taste, and bright and shining in color and luster, and has the health-care functions of clearing away heat and toxic materials, promoting blood circulation to arrest pain, calming liver and refreshing blood, beautifying features and nourishing face and the like.

The invention discloses a multi-layer flat rotating circulating type grain drying machine. A body is rectangular, and an air inlet channel and an air outlet channel are arranged inside. A grain inlet and a grain outlet are formed in the outer portion. Multiple layers of parallel conveying belts are arranged inside from top to bottom. Each layer of conveying belt is of a closed-loop structure, and every two up-and-down adjacent conveying belts are opposite in rotation direction. Grain enters the conveying belts from the grain inlet and falls onto the next layers of conveying belts after rotating along with the conveying belts by a circle, the process is repeated in a similar way, and the grain is dried on each layer of conveying belt in sequence and is finally output from the grain outlet in the bottom. Air enters a box body through the air inlet channel and is blown out from an air outlet. The multi-layer flat rotating circulating type grain drying machine is high in adaptability, good in use effect, low in machining cost and small in occupied area; and the technical problems that in the prior art, drying efficiency is low, machining cost is high, grain is damaged seriously, cost and power are wasted during mounting, and movement cannot be achieved are solved.

A tailings pond dam body free draining device belongs to mine tailings ponds and particularly relates to a safety stable control device for a tailings pond dam body. The device is characterized in that at least two vertical shafts are arranged along the stepped dam face of the dam body, water filtering pipes with water seepage holes are arranged on the peripheries of the vertical shafts, the distance between the two adjacent vertical shafts is 50-70 m, the difference between bottom levels of the adjacent vertical shafts is 0.8-1.2 m, the bottoms of the two vertical shafts are connected through a water guide pipe, the slope is 1/60-1/50, a draining pipe is arranged below the vertical shaft at the tail end and connected with an overflowing pond, and an overflowing port is arranged in the overflowing pond to be connected with an open drain. The draining device has the advantages of being wide in application, high in adaptability, especially suitable for rainfall on complex terrain, greatly increasing the rainfall range, being high in rainfall efficiency, ensuring safety and stability of the tailings pond dam body and being stable in structure, sturdy and durable, long in service life and low in maintenance cost. The vertical shafts are connected in series, seepage water flows freely from top to bottom, no power consumption is required for rainfall, the energy is saved, the consumption is reduced, and the operation cost is low. The tailings pond dam body free draining device is favorable for mine safety production and avoids disasters caused by dam body collapse.

The invention relates to a precipitation construction method. The method includes the following steps that S1, a precipitation well is dug; S2, a precipitation well filtering device is arranged in theprecipitation well and comprises multiple downcomers connected in an end-to-end manner sequentially, every two adjacent downcomers are connected detachably, multiple water passing holes are formed inthe pipe walls of the downcomers, the peripheral walls of the downcomers are coated with first filtering nets, and a bottom filtering structure is arranged at the bottom end of the downcomer at the bottom in the precipitation well; S3, a submersible pump is arranged at the bottom in the precipitation well filtering device, and a drain pipe of the submersible pump extends out of the precipitationwell; S4, the submersible pump is started to perform precipitation on the precipitation well. According to the precipitation construction method, the reusable precipitation well filtering device is adopted, so that the precipitation construction cost is reduced; and the reusable precipitation well filtering device can perform filtration precipitation at the bottom and on the pipe walls of the downcomers simultaneously, so that the precipitation efficiency is improved.

The invention discloses a preparation method of treating heavy metal copper ions by a microbial fuel cell. A cathode of the microbial fuel cell is made from a carbon nano tube; the metal ions perform a reduction reaction; and a simple substance, copper, is separated out on the cathode. The method comprises the following steps of weighing a certain amount of the carbon nano tube, coating the cathode of the microbial fuel cell with the carbon nano tube, and allowing the simple substance copper to be separated out after the microbial fuel cell operates for a period of time. According to the novel copper preparation method by the microbial fuel cell, the carbon nano tube is used for reducing reduction activation voltage; the copper ions perform the reduction reaction; at the same time, power can be generated; organic pollutants can be treated; a system is simple; and a reduction rate of the copper is high.

The invention relates to a fused salt electrolysis device for preparing rare earth metal, comprising an electrolysis box. An electrolytic cell is arranged in the electrolysis box; and a sealing coveris mounted at the top of the electrolysis box close to the electrolytic cell. According to the fused salt electrolysis device for preparing the rare earth metal, a motor drives a rotating rod to rotate through a second gear, the rotating rod drives a cathode rod to rotate, and the cathode rod adjusts the distance between each side surface and an anode rod through rotation, so that metal separatedout of the surface of the cathode rod is more uniform, and the separation efficiency of the rare earth metal can be effectively improved; and meanwhile, the cathode rod drives a first reciprocating screw rod to revolve through a first screw rod base, and the first reciprocating screw rod drives a third gear and a fourth gear to relatively move, so that the fourth gear drives the first reciprocating screw rod to rotate through the third gear, the first reciprocating screw rod drives a scraper frame and a scraper to move up and down, metal on the surface of the cathode rod is scraped off, and the metal separation efficiency can be further improved.

The invention discloses a simplified method for rapidly extracting DNA from plant leaves. The simplified method comprises the following steps: firstly, placing fresh plant leaves in a centrifuge tube; (2) taking and placing quartz sand in the centrifuge tube with leaf samples, adding an NaOH solution, using a sterilized tip of 1000-microliter pipettor to grind directly until no apparent leaf block exists, covering a tube cover and sealing with a sealing film to prevent the tube cover is jacked to open by steam during boiling water bath; thirdly, placing the grinded and sealed centrifuge tube in the boiling water bath; fourthly, placing the centrifuge tube in a centrifuge for centrifugation at room temperature; and fifthly, adsorbing supernatant, adding to a new centrifuge tube, and also adding a Tris-cl buffer solution. The method provided by the invention has low requirements on laboratory conditions, adopts extremely simple instruments and reagents, is simple to operate, good in effect, suitable for rapid extraction of leaves of tomatoes and cucumbers, and particularly suitable for large-scale extraction of different samples.

The invention relates to the technical field of environmental protection, and discloses a stacked screw type sludge dewatering machine for industrial wastewater treatment. The stacked screw type sludge dewatering machine comprises a motor assembly, wherein one end of the motor assembly is fixedly connected with a back pressure plate assembly, one end of the back pressure plate assembly is fixedly connected with a machine shell, the bottom end of the back pressure plate assembly is fixedly connected with a sludge outlet, one end of the machine shell is fixedly connected with a sludge inlet, one output end of the motor assembly is fixedly connected with a rotating shaft in a sleeved mode, the rotating shaft is fixedly connected with spiral blades, and the upper end and the lower end of the center of the inner cavity of the machine shell are connected with symmetrical positioning rods through bolts. Through the designed floating rings and the offset protrusions on the driving rod, the two adjacent floating rings of the concentration part can be driven by the offset protrusions to complete relative cross movement, a larger shearing effect is formed, the self-cleaning capacity of a filter seam is enhanced, and the water precipitation efficiency is improved while the contact between the floating rings and spiral blades is avoided, so that the abrasion of the spiral blade is reduced.

The invention discloses an integrated oriented vacuum well point pipe. The integrated oriented vacuum well point pipe comprises an outer layer pipe; an inner layer pipe is sleeved with the outer layerpipe; the outer layer pipe is downwards in threaded connection with a short pipe; the short pipe is downwards welded with a partition plate; the partition plate is downwards welded with a hollow cone; a plurality of water outlets are formed in the side walls of the hollow cone; the bottom end of the outer layer pipe is connected with the partition plate; a check valve is arranged on the partitionplate in the inner layer pipe; the top end of the inner layer pipe is bent, and then stretches out of the top of the side wall of the outer layer pipe; a seal ring is arranged between the outer layerpipe and the inner layer pipe at the top end of a vacuum pumping area; a plastic drainage barrel sleeves the inner layer pipe; a plurality of bulges are distributed on the plastic drainage barrel atintervals; a plurality of inner pipe water inlets are formed in the inner layer pipe; a plurality of outer pipe water inlets are formed in the outer layer pipe; a geotextile layer is mounted on the inner wall of the outer layer pipe; and a barrel-shaped metal net layer is arranged on the inner surface of the geotextile layer. A hoist is not needed in the mounting process, a drainage channel does not depend on poured coarse sand, sludge blocking can be prevented on a soft soil layer, oriented water precipitation is achieved, the influence on an environment is small, and the cost is relatively low.

The invention provides a treatment technology for preparing combustion gas by using a biomass fixed-bed gasifier. The technology comprises the following steps: S1, carrying out pyrolysis gasificationon a biomass raw material in the biomass fixed-bed gasifier to prepare combustion gas, wherein the gasifier comprises a gasifier body and a grate which are longitudinally arranged, the grate is arranged at the bottom of the gasifier body, and the gasifier body is provided with a feeding pipeline; S2, carrying out purification dedusting on the combustion gas: introducing the combustion gas into a gas purifier, and carrying out purifying treatment to obtain tar and purified combustion gas; and S3, adding the tar in the gas purifier into the gasifier body, and reacting the tar again. The technology has the advantages of realization of thorough tar removal without reducing the output yield, great reduction of the pollution to the environment, and solving of the production cost problem.

The invention relates to a production line for producing trimethylchlorosilane by virtue of a tower lamination method. The production line comprises a filler rectifying tower, a plate type reaction tower and a heating kettle which are sequentially arranged from top to bottom, wherein the bottom of the filler rectifying tower is communicated with the top of the plate type reaction tower, the top ofthe heating kettle is connected with the side wall of the lower part of the plate type reaction tower through a communication pipe, a hexamethyldisiloxane inlet pipe is arranged on the outer wall ofthe upper part of the plate type reaction tower, and a hydrogen chloride gas pipe for introducing dried hydrogen chloride gas is connected to the side wall of the heating kettle; a condenser is connected to the top of the filler rectifying tower through an air outlet pipe, and the bottom of the condenser is connected with the side wall of the upper part of the filler rectifying tower through a reflux pipe; and a discharging pipe for discharging trimethylchlorosilane is arranged on the side wall of the condenser. The production line has the beneficial effects that the production cost is low, the structure is simple, the production efficiency is high, the reaction promotion effect is good, the recycling rate is high, and the service life is long.