3427results about How to "Improve environmental performance" patented technology

The invention relates to an oil-displacing agent for enhancing crude oil recovery efficiency in tertiary recovery and a preparation method thereof, belonging to the technical field of intensified oilproduction in oil fields. The surface active agent used in the invention comprises following components in percentage by weight: 0.01-0.3 percent of water soluble high molecular polymer, 0-20 percentof non-ionic surface active agent, 5-65 percent of anion active agent, 0-5 percent of ampholytic active agent, 0.01-1.5 percent of additive and the balance of water. The oil-displacing agent and the polymer are based on a novel intensified oil displacing system which has complementary structure and good compatibility and is obtained by various associations and the interaction among molecules. Thesystem has the performances of high temperature resistance, salt resistance, higher viscosity, ultralow interfacial tension, and the like, is in accordance with the environmental requirement and can obviously enhance the oil recovery efficiency of oil fields after being used for oil-displacing.

The invention relates to the chemical technology field, and concretely relates to a formaldehyde scavenging agent with oil solubility and a preparation method and a usage method. The formaldehyde scavenging agent with oil solubility can be prepared to paint, and can be used for coating on the furniture, floor or other decoration sheet materials, and has good purification efficiency on indoor free formaldehyde, and no secondary pollution can be generated. On the premise of no change of the sheet material application and construction technology in the prior art, and the release of indoor formaldehyde can be fundamentally controlled. The preparation method is simple, the usage is convenient, and the formaldehyde scavenging agent is suitable for large-scale production and business application for enterprises, has good application prospect, and has obvious economy and social benefit.

A semi-automatic grinder-ball grinder system for grinding ore is composed of a vibration feeder, a semi-automatic grinder with variable-speed driver and load monitor, a vibration sieve, a crusher, a sludge pump, cyclone unit with concentration, flow and granularity detections, and a ball grinder with variable-speed driver. Its control method is also disclosed.

The invention belongs to the technical field of environment protection, and relates to a device and a process for temperature difference crystallizing ammonia process desulfurization, which is especially suitable for the ammonia process modification and newly-built desulfurization of the original calcium process desulfurization device. The device comprises a desulfurization tower, a densifying device, a gas-liquid heat exchanger, a circulating pump, a concentration circulating pump, a magma pump, a concentration crystallization tank and a drying system, wherein the desulfurization tower, the circulating pump, the magma pump and the drying system adopt the devices in the original calcium process desulfurization; the lower part of the densifying device is provided with a gas distributor, andthe upper part thereof is provided with spray heads which are arranged in 2-3 layers; spray heads in the desulfurization tower are arranged in 2-4 layers, a liquid supplementation pipe is connected with the spray heads at the lowest layer in the desulfurization tower; the concentration crystallization tank is a tank with a conical bottom part; and the upper part of the concentration crystallization tank is provided with a pipeline to be connected with the bottom of the densifying device, the middle of the concentration crystallization tank is provided with a pipeline to be connected with theconcentration circulating pump, and the bottom is provided with a pipeline to be connected with the magma pump. The invention can farthest utilize the original devices on the premise of guaranteeing the normal desulfurization efficiency, thereby saving the investment, reducing the energy consumption and eliminating the secondary pollution.

The invention provides a method for preparing beer by using pomelo. It comprises following steps: washing pomelo, removing epiderm (or not) and bad part, separating pulp from peel, cleaning peel, cutting peel, adding water and grinding, controlling temperature, adding proper amount of acid and stirring evenly, adding enzyme and getting peel enzyme reaction liquid, beating pulp, removing seed and getting pulp slurry, adding proper amount of acid and stirring, adding enzyme and getting pulp enzyme reaction liquid; mixing peel enzyme reaction liquid with pulp enzyme reaction liquid according to a certain proportion, stirring evenly and getting pulp slurry enzyme reaction liquid, filtering and getting pomelo clear juice; mixing filtered pomelo clear juice with brewed beer, loading, sealing, disinfecting, cooling, packing and getting pomelo beer; or mixing pomelo enzyme reaction liquid with prepared cereal mash, boiling, cooling, injecting yeast and preparing with beer processing steps and getting fermented pomelo beer.

The invention relates to a multiple helmholtz resonator parallel cellular sandwich wood sound absorption plate, belonging to the field of sound absorption technologies. The invention solves the problems of small chamber volume ratio, narrow sound absorption frequency band and poor sound absorption effect in the traditional sound absorption panels. Technical essential is characterized in that a sandwich layer is a cellular sandwich layer; the cellular sandwich layer is formed from splicing a plurality of cylinder bodies with hexagonal cross sections; an inner cavity of each hexagonal cylinder body is a cell cavity chamber; the chamber volume ratio of the sandwich layer is larger than 90%; the area of perforation shape surrounded by contour lines of each perforation is less than a half of the hexagonal area of corresponding sandwich layer; and each small through hole on a panel is communicated with the cell cavity chamber at the corresponding position of the sandwich layer. The invention has wider sound absorption frequency band and better medium high frequency sound absorption performance, and the sanding wave tube method sound absorption coefficients respectively reach 0.8, 0.9 and 0.7 at 500Hz, 1000Hz and 2000Hz. In addition, the invention also has the characteristics of light weight, high ratio of strength to weight, good decorative effect, and the like; and wood resources can be saved, preparation process is simple, and cost is low.

The invention relates an environmental protection laser transferred composite aluminum foil paper and the preparing technique, mainly solving the problems of the environment pollution and complicated technique caused by separant coating and laser layer protection coating of the existing commonly used solvent laser transferred composite aluminum foil paper. Its mixing proportion (by weight) of the raw materials is: water soluble amino resin 1-20 (or water soluble polyurethane resin 1-30, or water soluble alcohol acid resin 1-30, or water soluble acrylate resin 1-40, or cellulose resin 1-20), assistant 1-10, pigment 0-10, auxiliary solvent 1-30, and water 30-80, or their arbitrary combination, through synthesizing and wet-dispersing to mix into a water laser transfer coating, coating the transfer coating on a carrier thin film, drying, cross-linking curing, laser-mould pressing, and aluminizing to obtain the laser composite aluminum foil paper. It has the characters of improving environmental protection performance, simplifying producing process, saving energy sources, reducing production cost, stable production quality, etc.

The invention discloses an aerobic fermentation reaction system and method. The high-efficiency intelligent aerobic fermentation reaction system comprises an aerobic fermentation reactor, a circular water system, a gas intake and exhaust system, a detection system and a control system, wherein a water jacket is arranged outside a horizontal roller of the aerobic fermentation reactor; a material feeding and discharging hole and a gas intake and exhaust hole are respectively formed in sealing covers at two sides of the horizontal roller; the circular water system is connected and communicated with the water jacket on the horizontal roller; the gas intake and exhaust system is connected and communicated with the gas intake and exhaust hole in the sealing cover of the horizontal roller; a sensor of the detection system is arranged in the aerobic fermentation reactor and on a water passing pipe of the aerobic fermentation reactor; a signal output by the sensor is respectively connected with the control system; and the control system is used for controlling the circular water system, the gas intake and exhaust system, the aerobic fermentation reactor and external feeding and discharging conveying equipment. According to the high-efficiency intelligent aerobic fermentation reaction system and method disclosed by the invention, the occupied area is smaller and the fermentation efficiency is higher; no secondary pollution occurs; and the reduction, harmlessness and resourceful treatment of organic wastes can be quickly realized.

The present invention is green alkaline paint remover for eliminating coating from electronic circuit board and its preparation and usage, and belongs to the field of paint remover technology. The paint remover consists of NaOH in 40-150 g/L, surfactant in 0.5-50 g/L, additive in 0-50 g/L, corrosion retardant 0.1-2.5 g/L, and water for the rest. It is prepared through mixing and heating at 50-80 for dissolving completely. When the paint remover is used, the electronic circuit board is soaked in the paint remover and heated at 50-100 deg.c for 10-60 min to eliminate its paint layer. The present invention has the advantages of low cost, fast paint eliminating speed, low toxicity, use safety and capacity of being used repeatedly.

The invention relates to ecological type water-based synthetic leather which comprises a dry layer, a foaming layer, a bonding layer and a base material, and is characterized in that the dry layer, the foaming layer, the bonding layer and the base material are sequentially compounded in a layered way; and the dry layer, the foaming layer and the bonding layer are made from water-based resin. The product does not change the physical properties of solvent type synthetic leather, the whole leather layer structure adopts the non-toxic, harmless, safe and environment-friendly water-based material, and all the links of the whole production process are maintained to be clean and environment-friendly, so that the ecological type water-based synthetic leather is completely environment-friendly. The ecological type water-based synthetic leather saves a great deal of organic solvent, reduces the production cost of the synthetic leather, and is in accordance with the development tendency of synthetic leather industry, thus having a wide application prospect.

Belonging to the technical field of macromolecule binder, the invention relates to the preparation and application of a lignin additive for phenolic resin adhesive. The lignin additive is composed of hydroxylmethylated lignin with a molecular weight over 10000 and auxiliary components, wherein the raw material lignin is sulfonate lignin and the auxiliary components are Na3PO4, Na2HPO4, urea and NaOH. The preparation steps comprise the ultrafiltration treatment and hydroxylmethylation of lignin and the mixing of lignin with the auxiliary components. By adding the additive into the phenolic resin adhesive, the environmental protection performance of the resin adhesive is largely improved and the product cost is reduced.

The invention provides a mid-engine incremental stroke electric vehicle. The electric vehicle comprises a vehicle body, a turbo shaft engine (1), a battery pack (2), a generator (3), a whole vehicle controller (4), a driving motor (5), a gas controller (6), a battery controller (7), a gas holder (8) and a gas inlet tank (12), and is characterized in that the vehicle body comprises a vehicle main body, wherein the bottom structure of the vehicle main body forms a vehicle frame; the turbo shaft engine (1) is distributed between a front axle and a rear axle and is close to the vehicle frame of the rear axle; the axis of the output shaft of the turbo shaft engine (1) is positioned on the symmetry planes of the vehicle body; the air inlet of the turbo shaft engine (1) faces towards the tail of the vehicle; the gas inlet tank (12) is communicated with the air inlet of the turbo shaft engine (1); the gas inlet tank (12) is communicated with a gas inlet grille on a vehicle covering piece. The electric vehicle has the characteristics of high energy conversion efficiency, good operating performance, long driving mileage and high vehicle body structural strength.

The invention relates to an in-situ treatment method for electrically repairing heavy metal contaminated soil based on a plastic electrode. The in-situ treatment method is characterized by comprising the following steps: step I, determining the treatment depth of contaminated soil by performing soil experiment; step II, leveling ground; step III, performing water irrigation and pre-soaking on soil with the water content of less than 30%; step IV, distributing an anode plastic electrode (6) and a cathode plastic electrode (5); step V, distributing a water discharge pipe (3) and a water filling pipe (4); step VI, respectively connecting the cathode plastic electrode (5) and the anode plastic electrode (6) by using conducting wires (2), and gathering the cathode plastic electrode (5) and the anode plastic electrode (6) to be connected to positive and negative electrodes of a direct current power supply (1); and step VII, powering on the direct current power supply (1), and starting electro-osmosis treatment. The in-situ treatment method for electrically repairing the heavy metal contaminated soil based on the plastic electrode, disclosed by the invention, has the advantages that the in-situ treatment method can be used for rapidly reducing the heavy metal content of a soil body, and is relatively high in environmental protection performance.

The invention discloses the lean coal micro-oil cold ignition and super-low load stable combustor. It comprises the coal powder pipe with the primary powder combustion chamber and the secondary powder combustion chamber connected with in; the oil combustion chamber is obliquely equipped at the front end of the primary powder combustion chamber; the secondary powder combustion chamber and one end of the coal powder pipe connect the third grade powder combustion chamber; the cooling air intake pipe is outside of the powder pipe and the third grade powder combustion chamber; the multiple circumferential welded air films are between the third powder combustion chamber and the cooling air intake tube; the other end of the powder pipe has the coal powder strong concentrator. The invention uses 50-70kg/h oil through energy level amplifying principle to light large amount of coal powder and its oil saving ration is above 90%; it has the low load stable combustion function and can be used to electric dusting as soon as the boiler ignition; the ignition system is reliable and the investment is low.

The invention discloses a polyolefin resin nucleating agent and a preparation method thereof. The nucleating agent is polyol acetal-silica gel graft copolymer shown as a right general formula (I); the nucleating agent improves the stability of organic acetal and environment-friendly performance, reduces the production cost and remarkably improves the mechanical performance and thermal performance of polyolefin resin in particular.