153results about How to "Recycle" patented technology

The invention discloses a real-time monitoring device for water-inrush and mud-burst disasters in tunnels and underground engineering and an operation method. The real-time monitoring device comprises a model box, a ground stress simulation system, a water injection device, a monitoring system and a control system, wherein the model box is used for containing a water-body-containing similar material so as to simulate a rock body; the ground stress simulation system is used for applying a certain pressure to the water-body-containing similar material in a system of the model box and simulating a ground stress; the water injection device is used for injecting a certain amount of water into the water-body-containing similar material, a pressure controller and a flow control valve are mounted on the water injection device, are connected with a serve controller and are used for controlling simulated osmotic pressure at any time; the monitoring system comprises a sensor and a muddy water amount collecting device, the sensor is arranged in the model box, the muddy water amount collecting device is communicated to the inside of the model box, and the monitoring system is used for monitoring and collecting information before and after the occurrence of the water-inrush disasters in real time; and the control system is used for controlling the water injection device and simultaneously processing data collected by an information monitoring system.

The invention discloses a preparation method for water-soluble carbon dots. The preparation method comprises the following steps: (1) removing dross in silicon source; conducting ashing for reservation; (2) weighing the ash after calcination, and dividing the ash in tapered bottles; adding redistilled water; placing the tapered bottles into an ultrasonic instrument for ultrasonography; (3) conducting suction filtration on the solution after ultrasonography; (4) taking filter liquor; conducting centrifugation in a high speed centrifuge; taking supernatant liquor after centrifugation to obtain carbon dot solution; (5) conducting drying and weighting, and dissolving again with distilled water to obtain mass concentration carbon dot solution; the silicon source is bagasse, melon-seed shells, bean dregs, or tea leaf powder. The preparation method utilizes the bagasse, the melon-seed shells, the bean dregs, and the tea leaf powder as raw materials, and obtains the carbon dot solution through a synthesis method with simple operation; the preparation process is simple and convenient to operate; the used solvent in the preparation process is water; the preparation method is energy-saving, pollution-free, and green.

The invention provides a new method for the synthesis of hindered phenols antioxidants. Under the action of a composite catalyst, a compound II and a compound III are subjected to transesterification and byproducts-methanol is obtained via heating and decompression; the rate of conversion of the product is more than 98%, and the compound I of hindered phenols antioxidants is directly obtained without crystallizing and purifying reaction liquid by solvent. The composite catalyst is composed of a primary catalyst of carboxylates of organotin and a secondary catalyst of thioester compounds of phosphite ester. The primary catalyst can be recycled.

The invention discloses an environment-friendly plant concrete, consisting of water, cement, waste concrete aggregate, concrete antalkali and poly carboxylic acid water reducing agent. The detailed matching proportion is as follows: the ratio of water/cement/ waste concrete aggregate is 0.28 to 0.32:1:5; the quantity of adopted concrete antalkali is 10 to 20 percent of the cement quantity; the quantity of the poly carboxylic acid water reducing agent is 1 to 2 percent of the cement quantity. Compared with the existing similar product of the prior technology, the invention not only can solve the contamination to ecological environment by stacked waste concrete but also can avoid the damage to ecological environment by extreme exploitation to aggregate and realize the purpose of planting plants on concrete, thus achieving the effects of recycling sources, regulating ecological balance and beautifying environment; the intensity of the concrete is high, the concrete can be pre-cast into various shapes as requirements, and the construction is convenient.

The invention relates to an imidazoline corrosion inhibitor, a synthetic method and application thereof, and is applicable to boiler anticorrosion in natural gas processing plant. The imidazoline corrosion inhibitor comprises main agent of rosin, and additives of bis(beta-aminoethyl) amineand N,N-dimethyl acetamide. In addition, on the basis of synthesis of imidazoline corrosion inhibitor, guanyl with closing-opening performance under the action of CO2 / N2 is introduced, so as to on the one hand improve the corrosion inhibition performance of on CO2, and on the other hand recycle the inhibitor. Finally, under simulated field conditions, when the dosage of the corrosion inhibitor is at 400 mg/L, the inhibition rate reaches 80%, and the corrosion rate and corrosion inhibition efficiency are good. The corrosion inhibitor mainly inhibits the cathodic hydrogen evolution reduction reaction as well as anodic metal dissolution effect, and belongs to a mixed type corrosion inhibitor focusing on anodic inhibition. The corrosion inhibitor provided by the invention has the advantages of low cost, simple and efficient usage mode, low toxicity, no stimulation, no odor and reduction of pollution on water and environment.

A power supply device capable of preventing electric shock and short circuit comprises a power supply seat and a power supply plug, wherein the power supply plug is matched with the power supply seat, a sliding groove is formed in the power supply seat, a groove opening is formed in a front end of the sliding groove and communicates with the outside, fixed power supply grooves are horizontally and symmetrically formed in a rear end wall of the sliding groove, first power supply elastic sheets are arranged in the fixed power supply grooves, a sliding block is arranged in the sliding groove and can slide forwards and rearwards, a slot with an opening facing a front end is formed in a front end surface of the sliding block, first guide grooves are horizontally and symmetrically formed in the sliding block and are provided with openings facing the slot, second guide grooves are also horizontally and symmetrically formed in the sliding block and are provided with openings deviating from the slot, through grooves are formed between the first guide grooves and the second guide grooves, gears are rotatably arranged in the through grooves, gear rings of the gears are exposed out of the first guide grooves and the second guide grooves, extrusion and push arms are arranged in the first guide grooves in a sliding way, locking arms are arranged in the second guide grooves in a sliding way, and racks are arranged on end surfaces, opposite to each other, of the extrusion and push arms and the locking arms and are engaged with the gear rings of the gears.

The invention relates to etching equipment, in particular to printed circuit board (PCB) etching equipment for production of an electronic display screen. The PCB etching equipment, which can be usedfor reducing labor intensity of a worker, is high in etching efficiency and is convenient to operate, for the production of the electronic display screen is provided by the invention. In order to solve the technical problem, the PCB etching equipment for the production of the electronic display screen comprises a left rack, a first pipeline, a first one-way valve, a support rod, a bottom plate, amobile device, a lifting device, a rotation device, a liquid transmission device and a second one-way valve, wherein the left rack is welded at a left side of the top of the bottom plate, and the liquid transmission device is arranged at a lower part of a right side of the left rack. By the PCB etching equipment, the rotation direction of an electric winding wheel is controlled, the effects of rapidly collecting and placing a PCB is achieved by matching of the electric winding wheel and a first spring, a rotation motor is controlled to rotate, a cam and a second spring are matched with each other, an etching liquid is stirred by rotating rotation blades, so that the PCB and the etching liquid are in full contact, and the etching efficiency is improved.

The invention relates to a method for preparing spherical Bayer stones. The method comprises steps that: (1) an aqueous solution of sodium bicarbonate and a sodium aluminate solution are respectively added into a continuous crystallization reactor; a reaction is carried out under a temperature of 40-60 DEG C, and an average residence time is 45-90min; when the reaction reaches a steady state, a Bayer stone solid suspension solution is obtained, wherein the adding speed of the aqueous solution of sodium bicarbonate is 4.26-8.7mL/min; the adding speed of the sodium aluminate solution is 1.1-2.9mL/min; and the molar ratio of sodium bicarbonate to sodium oxide in aluminate is 0.90:1-2.59:1; (2) the suspension solution obtained in the step (1) is subject to solid-liquid separation; a solid phase and a liquid phase are collected; the solid phase is washed and dried, such that a Bayer stone product is obtained; (3) carbon dioxide gas is delivered to the liquid phase obtained in the step (2),such that a sodium bicarbonate solution is obtained; the produced sodium bicarbonate solution is used in the step (1), and the steps (1)-(3) are repeated. The method provided by the invention is advantaged in that: with the method, the prepared Bayer stones have regular spherical shapes and uniform particle distribution.

A provided preparation method for 4-chlorophenylhydrazine hydrochloride comprises the following steps: 1) under an acidic condition, at 5-10 DEG C, dropwise adding a sodium nitrite aqueous solution with a concentration of 20% into 4-chloroaniline to perform a diazo reaction and to generate a diazo salt; 2) under a room temperature condition, dropwise adding an ammonium sulfite aqueous solution into a solution of the diazo salt obtained in the step 1, heating to 50-60 DEG C and keeping the temperature for 3-4 h; and 3) at 50-70 DEG C, dropwise adding a hydrochloric acid solution with a concentration of 20% into the solution obtained in the step 2, keeping the temperature for 1-2 h, reducing the temperature, filtering, washing, discharging the material, and drying to obtain a finished product. The beneficial effects comprise that by using ammonium sulfite aqueous solution as a reducing agent in the reduction reaction, the problems are solved that sodium sulfite solid is easy to cake during material charging in a conventional technology and material charging is not easy to operate; ammonium chloride and ammonium hydrogen sulfate which are generated in the acidification reaction have high solubility in water, and crystallization precipitation is late, thereby facilitating performing of the acidification reaction in the solution and reducing side reactions; and the product crystallizes loosely, is good in fluidity, easy for material discharging and washing, and product quality and yield are both better than conventional production levels.

The invention discloses a production technology of a steel band-enhanced polyethylene screw corrugated pipe. The technology comprises the following steps: (1) inspecting raw materials; (2) carrying out plastic coating treatment on a steel band; (3) carrying out forming bending treatment on the steel band subjected to plastic coating treatment in the step (2), wherein the bent shape is a V shape; (4) winding a sheet extruded from dried polyethylene resin to form a core layer band, winding the steel band formed and bent in the step (3) on the core layer band according to preset screw pitches, covering the steel band with a polyethylene resin layer through extrusion to form an outer layer band, and finishing bonding and compounding of the core layer band and the plastic-coated steel band, and the plastic-coated steel band and the outer layer belt by a thermal fusion welding technology to form a pipe tube with an overall structure; and (5) carrying out length-measuring cutting after cooling and sizing and warehousing the product after qualified inspection. According to the production technology, by reasonably controlling the production process and reasonably setting parameters, the produced pipe can be spliced firmly and the layering problem is solved.

The invention discloses a luteinizing hormone test strip analyzer, which includes a reagent card and a detection pen; the detection pen includes a casing, a light-shielding cavity arranged in the casing, and a photoelectric detection system for judging the depth of the color, An insertion port is provided on the casing of the detection pen, and when the reagent card is inserted into the detection pen through the insertion port, the detection window is correspondingly inserted into the light-shielding cavity. It uses the photoelectric detection system to collect the reflected light in the process of changing the color of the test strip, converts the optical signal into a digital electrical signal, and automatically judges the detection result according to the threshold value comparison, thereby improving the accuracy and efficiency of the measurement result, and realizing Non-contact detection avoids contamination of the detection pen. At the same time, the reagent card and the detection pen are designed separately so that the detection pen can be recycled, which not only saves the detection cost, but also makes the detection result more accurate.

The invention relates to a method for removing impurities in metallurgic silicon and belongs to the technical field of silicon purification. The method includes firstly smelting a handful of additives (zirconium, hafnium, zirconium-contained alloy or hafnium-contained alloy) and industrial silicon until materials are completely smelted and cooled to the room temperature, grounding the materials into silicon powder of 186 micrometers, and pickling with mixed acid of aqua regia and HF+HCl to obtain highly pure silicon successively. The method has the advantages that boron that is hardest to remove in the field of silicon purification can be effectively removed as well as other impurities.

The invention discloses an environment-friendly, intelligent, recoverable, shake-proof and drop-proof air inflation packaging box. The packaging box comprises a base, wherein a left coaming, a right coaming, a front coaming and a rear coaming are arranged on the base, and the coamings are connected with one another to form a box body; the top edge of the rear coaming is connected with a box cover,air bags are in attached connection with the inner bottom of the box body, inner walls of the coamings and the inner wall of the box cover and communicated with one another, edges of the air bags arecontacted and connected mutually after the box cover is closed, and then a shake-proof storage space is defined in the box; air nozzles are fixed on the coaming on one side in a penetration manner and connected with the air bags for air introduction. The packaging box is reasonable in structural design and convenient to use and transport; relatively small fragile goods and precious loose-preventing goods can be protected, the packaging box is foldable, recoverable and free of pollution, and recycling is realized.

The invention provides a roof cleaning and cooling system and a building. The roof cleaning and cooling system comprises a water tank, a first spraying pipe, a connecting pipe, a water collecting portion, a backflow pipe and a driving portion, the first spraying pipe is arranged at the top of a roof and comprises a water outlet arranged towards the roof, the connecting pipe connects the water tank with the first spraying pipe, the water collecting portion is arranged at the edge of the bottom of the roof and used for receiving water leaking down from the roof, the backflow pipe connects the water collecting portion with the water tank, and the driving portion uses photovoltaic power as an energy source to drive water in the water tank to enter the first spraying pipe. The roof cleaning and cooling system uses solar energy as power and water as a medium, the water is driven through the solar energy to circulate to the roof for spraying so as to realize cleaning and cooling of the roof; in other words, the solar energy is utilized to spray the water in the water tank to the roof through the first spraying pipe to cool the roof, and the roof and photovoltaic tiles on the same can be cleaned, so that power generation efficiency of the photovoltaic tiles is guaranteed and energy-saving environment-friendly effect is realized.

The invention relates to a method for co-producing potassium alum or ammonia alum and polyaluminium chloride, which comprises the following steps: taking alum sludge as raw material, adding water or recovery liquid to the alum sludge to pulp; then adding sulfuric acid with the concentration being more than or equal to 93 wt. percent and water or recovery liquid to alum sludge paste; reacting for 10 to 14 hours under the condition that the concentration of the sulfuric acid is 30 to 35 wt. percent; settling, separating and obtaining the solid potassium alum and aluminum sulfate solution; adding equivalent ammonium chloride or potassium chloride to the aluminum sulfate solution; stirring and reacting for 5 to 6 hours; and settling, separating and obtaining the solid potassium alum and the aluminum sulfate solution. The aluminum sulfate solution is used for preparing the polyaluminium chloride. The invention co-produces the potassium alum, the ammonia alum and the polyaluminium chloride during the whole reaction process by utilizing idreaction through taking the alum sludge, the sulfuric acid, the potassium chloride, the ammonium chloride and the aluminum ash as raw materials, so that the potassium chloride and the alumina in the alum sludge can be fully utilized, and the policies of cyclic utilization of resources, energy conservation and drainage reduction are really executed.

Constructed wetland wastewater treatment equipment under low temperature for continuous operation which includes: three-section substrates filled in a constructed wetland, ventilation pipes being arranged in the substrates, a height of a bed of the constructed wetland being higher than a height of the substrates; a double wall being filled with an organic substance used as a barrier at periphery of the constructed wetland; a water distributing pipe disposed at a top of the three-section substrates and a water collecting pipe disposed at a bottom of the three-section substrates; and a water inlet pipe connected to an upper portion at one end of the three-section substrates and a water outlet pipe connected to a lower portion at the other end of the three-section substrates, a water outlet of the water outlet pipe being higher than the height of the bed of the constructed wetland.

The invention relates to a device for testing binding force of a reinforcing steel bar and concrete. The device comprises a reinforcing steel bar, a cylindrical substrate PVC (Poly Vinyl Chloride) pipe, an internal round steel board, an external round steel board, a base PVC pipe and an adhesive tape. The external round steel board is fixedly connected with an outer wall at the bottom of the cylindrical substrate PVC pipe through the adhesive tape, so as to form a cylindrical barrel device; the base PVC pipe is arranged on a horizontal surface; the cylindrical barrel device is arranged on the base PVC pipe; the reinforcing steel bar passes through the external round steel board and the base PVC pipe in sequence, and reaches the horizontal surface; and after concreting is completed, the internal round steel board passes through the reinforcing steel bar, and is arranged in the base PVC pipe, so as to correct a center position of the reinforcing steel bar. Compared with the prior art, the device provided by the invention has the advantages of being simple in manufacturing, high in precision, low in cost and the like.

The invention discloses a method for separating scandium from thorium in an organic phase by means of back extraction. The acid phosphor extraction agent organic phase loaded with the scandium and the thorium, is back-extracted by using a fluorinion containing aqueous solution as a back-extraction agent. The method comprises the following steps of: back-extracting the thorium: adding the water-soluble fluoride containing back-extraction agent into an extraction apparatus filled with the scandium and thorium loaded organic phase, wherein the water phase obtained from the back extraction of the thorium is applied to recycling the thorium; (2) filtering: filtering the water phase containing thorium fluoride sediment, wherein the sediment is the thorium fluoride; (3) recycling the back-extraction agent: supplementing proper water-soluble fluoride into a filtrating solution, and applying the resulting filtrating solution to the back extraction of the thorium to achieve the recycling of the back-extraction agent. The method disclosed by the invention has the following advantages: the separation of the scandium from the thorium is achieved by selective back extraction of the thorium directly from the acid phosphor extraction organic phase loaded with the scandium and the thorium; the method is short in process flow, and good in separation effect; the back extraction agent can be recycled, causes no pollution, and is low in separation cost.

The invention discloses a lichee tea capable of clearing heat and lowering lipid. The lichee tea is prepared by the following components of, by weight, 1-15 parts of litchee seeds, 1-10 parts of plantain, 1-8 parts of magnolia flower, 2-12 parts of reed roots, 2-12 parts of fiveleaf gynostemma herb, 1-10 parts of hawthorn and 2-12 parts of green tea. The lichee tea has the functions of clearing heat and detoxifying, reducing blood fat, reducing blood pressure, producing saliva to quench thirst, enhancing immunity and the like, and has no toxic and side effect. After drinking the lichee tea, a drinker feels mouth dry and tongue slippery, and is refreshed. The lichee tea is suitable for being drunk by people of all ages. Waste lichee seeds of a lichee processing industry are used as main raw materials, an object of recycling and reducing environment pollution is achieved and production cost is reduced. The lichee tea can be popularized easily.

A power supply device capable of preventing electric shock and short circuit comprises a power supply seat and a power supply plug, wherein the power supply plug is matched with the power supply seat, a sliding groove is formed in the power supply seat, a groove opening is formed in a front end of the sliding groove and communicates with the outside, fixed power supply grooves are horizontally and symmetrically formed in a rear end wall of the sliding groove, first power supply elastic sheets are arranged in the fixed power supply grooves, a sliding block is arranged in the sliding groove and can slide forwards and rearwards, a slot with an opening facing a front end is formed in a front end surface of the sliding block, first guide grooves are horizontally and symmetrically formed in the sliding block and are provided with openings facing the slot, second guide grooves are also horizontally and symmetrically formed in the sliding block and are provided with openings deviating from the slot, through grooves are formed between the first guide grooves and the second guide grooves, gears are rotatably arranged in the through grooves, gear rings of the gears are exposed out of the first guide grooves and the second guide grooves, extrusion and push arms are arranged in the first guide grooves in a sliding way, locking arms are arranged in the second guide grooves in a sliding way, and racks are arranged on end surfaces, opposite to each other, of the extrusion and push arms and the locking arms and are engaged with the gear rings of the gears.

The invention provides a vertical cotton baby pillow. The vertical cotton baby pillow comprises a pillow body, wherein the pillow body comprises an upper bird eye fabric layer, a lower bird eye fabric layer and a vertical cotton interlayer clamped between the upper bird eye fabric layer and the lower bird eye fabric layer; and the peripheral edges of the upper bird eye fabric layer and the lower bird eye fabric layer are adhered so as to form a containing cavity for clamping the vertical cotton interlayer. Compared with the prior art, the vertical cotton baby pillow is filled by vertical cotton; the vertical cotton baby pillow has excellent elastic resilience and breathability; and compared with sponge filling, the vertical cotton baby pillow is more ventilate and comfortable, more environment-friendly, and is good for healthy growth of infants.

The invention discloses a soothing composition containing a saxifraga stolonifera extract. The soothing composition is prepared from the following raw materials in parts by weight: 4 to 18 parts of the saxifraga stolonifera extract, 4 to 15 parts of a sedum sarmentosum extract, 3 to 12 parts of an aloe extract, 3 to 8 parts of a dendrobium officinale extract and 47 to 86 parts of water. Essence prepared by utilizing the soothing composition has the effects of resisting inflammation and oxidation, soothing skin, improving endogenous water replenishing capacity of the skin, realizing water replenishing and moisturizing and soothing fragile skin.