127results about How to "Good environmental value" patented technology

The invention relates to the technical field of chemical engineering, and particularly relates to a production method for monoammonium phosphate. A monoammonium phosphate product is prepared by directly subjecting high pure urea phosphate and ammonia to a double decomposition reaction and reacting for 20-60 min with stirring by controlling a reaction temperature at 40-80 DEG C and a pH value at a reaction endpoint being 4.2-4.6, and through the steps of cooling for crystallization; separating by centrifugation and drying. Measurements of physical and chemical indexes of the produced product show that the physical and chemical indexes of the produced monoammonium phosphate product meet an industrial first level standard. Specifically, the total nutrient content of monoammonium phosphate is higher than 73%; the content of total nitrogen is 12.01-12.23%; the content of phosphorus pentoxide is 61.05-61.25%; the content of moisture is 0.35-0.52%; a pH value is 4.2-4.6; the content of water insoluble materials is 0.090-0.096%; and the content of fluoride is 0.15-0.19%.

The invention discloses a dust hood for a coke oven. The dust hood comprises horizontally distributed steel trusses (3), which are fixed on a coal tower (2) through stay cables (1). Two ends of the steel trusses are supported through columns (5). A fire insulation and dust storage layer (4) is arranged below the steel trusses (3). By the above technical scheme, the main-body structure of the steeltrusses will not be exposed to a fire scene caused by coke discharging, safety risk during the application period is reduced, and service life is prolonged. The original full-coverage roof truss is changed into the two-row steel trusses, and the refuge floor material is lightweight fire insulation boards fitted with lightweight keel. Thus, deadweight is greatly reduced. Construction can be completed through prefabricated assembly and hoisting. Thus, building cost and construction difficulty are greatly reduced. With the arrangement of local folding boards and by optimization of an air-duct system, functions of heat dissipation, dedusting, fire protection and the like are integrated into the dust hood. The dust hood has good environmental-protection value.

The invention discloses a preparation method and application of high-solid-content water-based polyurethane resin and coating thereof. The preparation method comprises the following steps: reacting poly (propylene carbonate) polyols or a mixture of poly (propylene carbonate) polyols and other conventional polypolyols with isocyanate, a chain extender, a crosslinking agent, a catalyst and a sulfonic acid type hydrophilic chain extender, adding water to perform emulsification, and removing a solvent to obtain the high-solid-content water-based polyurethane resin; adding aids such as a leveling agent, a thickening agent, color paste, an environment-friendly cosolvent and a defoaming agent to obtain high-solid-content water-based polyurethane resin coating prepared from the poly(propylene carbonate)polyols. Film-forming and drying speed is high, plumpness is high, and high adhesive force, hardness, water resistance and solvent resistance are achieved.

The invention discloses a method for producing a copper bar alloy material by horizontal continuous casting production of scrap copper. The method comprises the following steps of: adding threadlike and granular scrap copper, boron alloy and impurity-removing solvent to a furnace for heating and melting completely; adding irregular scrap copper, using a stirring rod or a salvaging gourd ladle to stir; salvaging out the iron cakes after the stirring is stopped; adding rare earths, zinc ingots and calcium-magnesium powder to carry out thermal-insulation refinement, wherein the refining temperature is 980 DEG C to 1020 DEG C and the refining time is 20 minutes to 30 minutes, and salvaging again after the thermal-insulation refinement; and putting the qualified copper liquid to the thermal-insulation copper liquid for stewing for 20 minutes and then carrying out horizontal continuous casting, wherein the temperature of the continuous-casting cooling water is 40 DEG C to 45 DEG C, the water-carrying capacity is 4m<3>/min to 5m<3>/min and the stretching speed is 3m/min to 3.2m/min. The method disclosed by the invention is adopted to produce the copper bar, so that the production cost is low, the process flow is short, the environment benefits are good, and the performances of the brass bar are good. The grain size of the copper bar is 0.015mm to 0.03mm, the ratio of the alpha phase crystalline grains to the beta phase crystalline grains is 3:1; air holes and cracks which are visible by naked eyes are not formed during the polishing mirror-surface detection; the tensile strength is 290 MPa; and the extensibility is bigger than 20%.

The invention relates to biomass-based polyurethane foam containing vegetable oil residue, which is composed of a biomass liquification product, a catalyst, a foam stabilizer, vegetable oil residue and isocyanate. The invention also relates to a preparation method of the biomass-based polyurethane foam containing vegetable oil residue. The polyurethane foam provided by the invention has better degradation property, thus waste biomass is completely utilized and the pressure of petrochemical resources is reduced; the preparation cost is lower, and the raw materials are inexpensive, easily available and renewable; and the pore structure of the polyurethane foam material is improved and the compressive strength of the foam is improved.

The invention relates to an imitation wood-grain ceramic product and a production process thereof; the imitation wood-grain ceramic product comprises a ceramic body and also comprises a cracked ground glaze layer and a surface glaze layer arranged on the surface of the ceramic body. The imitation wood-grain ceramic product provided herein is totally different from traditional ceramic with smooth glaze, and has unique artistic effect. The cracked ground glaze layer and the surface glaze layer form the natural ceramic body cracked and exposed; as the cracked ground glaze layer is thick, the cracked ground glaze layer is stereoscopic; as the color of the whole ceramic product is adjusted through the surface glaze layer, imitation bark or other rough grains can be achieved. High contents of red soil, clay, gold tailings and other low-price industrial wastes are used as ceramic materials for the imitation wood-grain ceramic product, so that the imitation wood-grain ceramic product has significant environmental value, and has effectively decreased production cost of materials and increased economic benefit and marketing competitiveness.

The invention relates to the technical field of reverse osmosis membranes and particularly relates to a nanostructure high-flux reverse osmosis membrane for seawater desalination and a preparation method therefor. According to the nanostructure high-flux reverse osmosis membrane for seawater desalination and the preparation method therefor, through carrying out steps, i.e., preparing a polymer supporting layer, contacting natural nanocrystals and preparing a desalination layer or preparing the polymer supporting layer, preparing the desalination layer, and the like, adjusting process parameters of a preparation process for the nanostructure high-flux reverse osmosis membrane for seawater desalination, combining the polymer supporting layer and the natural nanocrystals, and subjecting the combination and an active oil-phase monomer to a reaction in the presence of an active hydrophilic stabilizer, a high-flux desalination layer can be formed in an accurate and directive manner, then, the water flux of the reverse osmosis membrane for seawater desalination is increased, the energy consumption in an application process is lowered, and thus, the reverse osmosis membrane has a remarkable environmental protection value; and the usage amount and adding sequence of raw materials are controlled, so that the nanostructure high-flux reverse osmosis membrane for seawater desalination is low in preparation cost and has remarkable economic benefit.

The invention relates to a rubber particle asphalt pavement material and a method for paving the rubble particle asphalt road surface, in particular to an asphalt pavement material and a method for paving the asphalt road surface. The invention solves the problems that the prior asphalt road surface does not possess the capability of inhibiting condensation of ice and snow on the road surface or removing ice and snow; adopting other methods for removing snow on the road causes the problems of environmental pollution, low utilization rate of equipments, influence on traffic capacity of working road, high energy consumption, high cost, complex process and difficult maintenance. The rubber particle asphalt pavement material is prepared with 76.5 to 91.5 portions of ore aggregate, 2.5 to 7.5 portions of asphalt, 4 to 10 portions of mineral powder, and 2 to 6 portions of rubber articles by weight portions. The method for paving the road surface comprises that I. the ore aggregate, the asphalt, the mineral powder and the rubber particles are weighed; II. the mixture of the rubber particles and the asphalt is prepared; and III. the mixture of the rubber particles and the asphalt are stirred, paved and rolled. The road surface of the invention can effectively inhibit the condensation of ice and snow on the road surface, and facilitate the following mechanical snow removal as well as road surface management and maintenance. The invention has low cost in road pavement and improvement effects in service performance of the road.

The invention discloses a method for continuously preparing graphene and belongs to the technical field of preparation of the graphene. The method for continuously preparing the graphene comprises thesteps: a graphite electrode serves as a sacrificial anode, a sheet metal or graphite electrode serves as a cathode, the sacrificial anode and the cathode are placed into an electrolyte of an oblique-placed electrolysis tank, and a DC regulated power supply is applied for electrochemical reaction stripping so as to form the graphene; during electrochemical reaction, the graphene containing electrolyte flows in a solid-liquid separator located below the electrolysis tank under the action of own gravity and is subjected to solid-liquid separation so as to obtain the graphene and the electrolyte;and the separated electrolyte is recycled and flows back into the electrolysis tank for the electrochemical reaction through being driven by a peristaltic pump. According to the method, the effect ofrapidly recycling the electrolyte is achieved by adopting a liquid flow recycling technology, the continuous production of the graphene is achieved, the continuous stripping production cycle is short, the product structure is excellent, and thus, the method is applicable to large-batch rapid continuous production. Meanwhile, no waste gas is generated, no strong acid is used, the electrolyte can be recycled and reused, and thus, the method has an obvious environment-friendly value.

The invention relates to the technical fields of comprehensive utilization of peat and humate extraction, and particularly relates to a method of extracting humic acid from peat. By combining spray drying with a centrifugal separation technology, and regulating and controlling the opportunity, the temperature and end point of adding a nitric acid liquid and an alkaline liquid into the peat to extract the humic acid, and controlling the water-washing times and the water-washing time, the humic acid in the peat can be greatly extracted, so that the extraction efficiency of the humic acid is improved, the purity of the humic acid in the humate is increased to over 80%, the humic acid extraction time is shortened, and the humic acid extraction cost is lowered.

The invention relates to a catalyst for synthesizing methanol through hydrogenation of carbon dioxide. A purpose of the invention is mainly to solve the problems of low activity and low selectivity ofthe catalyst for preparing methanol through hydrogenation of carbon dioxide in the prior art. According to the invention, molybdenum disulfide is used as the main component of the catalyst for synthesizing methanol through hydrogenation of carbon dioxide, so the catalyst has characteristics of low price, simple and convenient operation, high carbon dioxide conversion rate, high selectivity of methanol in a product, good stability and the like.

The invention discloses an intelligent safety supervision device for a construction site, and the device comprises a bottom supporting mechanism, a site video monitoring mechanism, an environment monitoring mechanism, a display mechanism, and a power generation mechanism, and the bottom supporting mechanism comprises a pedestal and a vertical column. According to the invention, all regions of a construction site can be monitored at 360 degrees without dead angles; supervision range is large, the supervision area is comprehensive, and environmental parameters can be comprehensively monitored; the service life of the sensor is long; the later maintenance cost can be effectively reduced; people who do not wear safety helmets on a construction site can be captured; responsibility and warning are carried out on people who do not wear safety helmets on a construction site; and therefore, safe construction is promoted, the occurrence rate of accidents on a construction site is reduced, solarenergy can be used for generating power to supply power to itself, natural resources are fully utilized, the environment-friendly value is good, meanwhile, inconvenience brought to construction due tocable pulling on the construction site can be avoided, and practicability is good.

The invention provides a resetting method of a replaceable unit. The replaceable unit comprises an old chip module, and a command processing module connected with the old chip module; and the resetting method comprises the following steps: (S01) a command is received and judged; in the step (S01), if the received command is not a consumable information writing command, the step (S21) is carried out; the command is performed by the command processing module; and then, the step (S01) is returned to; in the step (S01), if the received command is the consumable information writing command, the step (S11) is carried out; consumable information is written in the old chip module; the step (S12) is carried out after the step (S11); and the command processing module is stopped operating. The resetting method of the replaceable unit, provided by the invention, has such characteristics as high resetting recovery rate of the old chip and good stability.

The invention relates to the technical field of chemical industry, and discloses a method for preparing a dendrobium officinale nutrient fertilizer. The method comprises the following steps: determining the proportion of nutritive elements in the dendrobium officinale nutrient fertilizer by analyzing various nutritive elements absorbed in a growth process of dendrobium officinale, reacting phosphoric acid with carbamide to generate an intermediate, then introducing ammonia gas into the intermediate to produce ammonium dihydrogen phosphate, separating part of ammonium dihydrogen phosphate by crystallization so as to control the content of nitrogen and phosphorus in a solution to meet the proportion required by the growth of dendrobium officinale, and then adding potassium and other medium trace element compounds into the solution to prepare a fertilizer special for dendrobium officinale. According to a production method disclosed by the invention, raw materials can be fully used, produced ammonium dihydrogen phosphate is relatively good in quality, and the prepared fertilizer special for dendrobium officinale is relatively low in cost.

The invention relates to a dewatered sludge solidifying agent which comprises silicate cement, modified fly ash, fine sand and calcium sulfate, wherein the modified fly ash accounts for 5-7wt% of the silicate cement, the fine sand accounts for 1-3wt% of the silicate cement, and the calcium sulfate accounts for 0.6-1.4wt% of the silicate cement. The preparation method of the modified fly ash comprises: baking fly ash at the temperature of 280-320 DEG C for 40-70 minutes, taking out for cooling, sealing and storing for later use, wherein and the use amount of the dewatered sludge solidifying agent is 2-10wt% of dewatered sludge, and the water content of the dewatered sludge is 30-60%. The dewatered sludge solidifying agent is suitable for solidifying modification of sludge generated in a water conservancy project, civil engineering and wastewater treatment, and has short solidification time; and the obtained modified soil has the advantages of high strength, small void ratio and no secondary pollution.

The invention provides a chip resetting method. The chip resetting method is characterized by comprising the steps that a command sent by a printer is received and judged; if the received command is a command to be executed by a command processing module I, the command is transmitted to the command processing module I, and the corresponding operation is executed by the command processing module I; if the received command is a command to be executed by a command processing module II, the command is transmitted to the command processing module II and the corresponding operation is executed by the command processing module II. The chip resetting method has the advantages of being simple, high in resetting rate and good in stability. The invention further provides a chip resetting device.

The invention discloses an environment-friendly neurosurgical skin preparation scalpel which comprises a shaving part and a handheld part. The shaving part is fixedly installed at the upper end of thehandheld part. The top wall of a shell is of an arc structure so that the skin of a patient can be prevented from being injured. The scalpel is safe and reliable, a blade can retract into the shell through cooperation of an operation handle and a threaded rod when the scalpel is not in use, and the blade can be effectively prevented from injuring the patient or a medical worker by accident. The skin preparation scalpel can be prevented from sliding off to be damaged, and at the same time, the accident that the patient is scratched as the medical worker does not firmly grip the skin preparation scalpel is avoided. The skin preparation scalpel has the lubricant smearing function, so that the trouble that the medical worker has to additionally use a lubricant smearing tool is omitted. A prepared lubricant not only has a good lubricating effect, but also has an anti-microbial effect, so that the preserved skin of the patient after operation is effectively prevented from being affected. Aprepared protection layer can prevent the surface of the shell from being stained with bacteria and hair.

The invention discloses a rehabilitation training device for hemiplegic patients, which comprises a frame, a seat plate, casters, a pulley assembly and a pedal assembly, wherein the frame comprises four rods: a first vertical rod, a first front cross rod, a first rear cross rod and a first side cross rod. The pedal assembly comprises a left pedal assembly, a right pedal assembly and a main connecting rod; a second vertical rod is fixed on the middle part of the first rear cross rod, and the main connecting rod is fixed below the second vertical rod. The pulley assembly comprises a first pulleyand a second pulley, wherein the first pulley is connected with the left pedal assembly through a first connecting rope, and the second pulley is connected with the right pedal assembly through a second connecting rope. The rehabilitation training device for the hemiplegia patients can help the patients to carry out normal gait training; the power of the lower limbs movement of the patient is provided by the upper limbs of the patients, and the power of the upper limbs movement is provided by the lower limbs of the patients; an external power supply is not required, the upper limbs and the lower limbs can be trained at the same time, and the rehabilitation training device for the hemiplegia patients is simple in structure and is used conveniently.

The invention discloses an environment-friendly anesthesia nursing tray which comprises a square tray body. A partition is fixedly mounted in the middle of the inside of the square tray body, four clamping grooves are symmetrically formed in the front side face of the partition and the inner front wall of the square tray body, and a plurality of spacing sheets are arranged between the front side face of the partition and the inner front wall of the square tray body. The nursing tray is convenient for classified storage of narcotics and anesthesia utensils, can prevent delaying patients' treatment, can clamp the anesthesia utensils like anesthesia injectors different in specification, can disinfect syringe needles of the anesthesia injectors, has good dustproof effect and can prevent the narcotics or the anesthesia injectors stored inside from being contaminated; a prepared protection layer can effectively improve corrosion-resistant, antibacterial, anti-skidding and anti-aging performance of the square tray body so as to reduce medical waste, thereby having high environment-friendly value, and more importantly, the nursing tray can be prevented from being infected with a lot of bacteria.

The invention relates to a water treatment biological membrane reactor. The water treatment biological membrane reactor is mainly composed of a substrate and an attachment adhered to the surface of the substrate, the substrate is of a plane mesh structure, and the attachment on the surface of the substrate is expanded after water absorption, so that the mesh holes of the substrate are fully filled to form a membrane which water cannot directly penetrate through but organic matter in the water can pass through in a diffusion mode; the sizes of the mesh holes of the substrate are smaller than or equal to a critical size, wherein the critical size is a size in which the expanded attachment can be just limited by the mesh holes and cannot be washed out and stripped by running water, the substrate is made of a high molecular material or a high molecular composite material or an inorganic nonmetallic material or an inorganic nonmetallic composite material or a compound of the high molecular material and the inorganic nonmetallic material, and the attachment is a macromolecular substance. The water treatment biological membrane reactor can effectively purify waste water, has the advantages of being not likely to be blocked, low in energy consumption and low in cost, and has a very good industrialized popularization advantage.

The invention discloses a semi-hydrated and undisturbed phosphogypsum-based composite cementing material and a preparation method thereof. The material comprises main raw materials and additives, wherein the main raw materials comprise undisturbed phosphogypsum and semi-hydrated phosphogypsum; the additives comprise a water reducing agent and a retarder. The method has the characteristics of high phosphogypsum utilization rate, excellent material performance, simple process and low cost.

The invention provides an environment-friendly architectural interior wall coating. The coating comprises the following components in parts by weight: 20 to 25 parts of a titanium dioxide sol; 15 to 20 parts of a synthetic resin emulsion; 10 to 15 parts of zinc oxide; 0.1 to 1 part of a dispersant; 0.05 to 0.1 part of a coupling agent; 1 to 2 parts of a defoaming agent; 0.5 to 1 part of a levelling agent; 0.01 to 0.5 part of a thickener; 1 to 2 parts of a film-forming auxiliary agent; and 30 to 50 parts of water. According to the coating, the synthetic resin emulsion is used as a base material, the titanium dioxide sol and a certain proportion of the functional auxiliary agent are added to prepare the architectural interior wall coating, so that the adhesion and stability of interior wallcoating can be improved, and the coating can effectively catalyze degradation of indoor harmful gases TVOC and formaldehyde, plays a good role in air purification, is beneficial to human health, and has good environmental protection value.