70results about How to "Short working time" patented technology

A method for recycling a battery pack includes steps of: roasting the battery pack that houses a battery assembly that is in a charged condition, as it is, dismantling the roasted battery pack and separating the battery pack into unit cells and parts other than the unit cells, comminuting the unit cells obtained by separation, washing and screening the comminuted cells, dehydrating a slurry below a sieve after screening and recovering metals used for positive and negative electrodes, and recovering metal containing nickel by magnetically separating metal remaining on the sieve after screening, using a magnet.

Provided is a preparation method for high-quality recycled concrete aggregates. The preparation method comprises steps of sorting of waste concrete, primary crushing, primary screening, rod milling, secondary screening and cleaning, and then the graded aggregates are mixed according to required gradations to obtain recycled coarse aggregates with different particle sizes. According to the preparation method, the cyclic utilization rate of waste concrete can be close to 80%, the resource utilization of construction waste in cities can be realized, the secondary pollution of construction waste to the environment can be reduced, the land occupation account for landfilling of construction waste can be saved, and the industrialization development of comprehensive utilization of construction waste can be promoted to some extent.

The invention belongs to the field of steam explosion and relates to a gas explosion processor. The gas explosion processor comprises a frame (1), an outer cylinder body (2), an inner cylinder body (3), a steam pipe (4), a lower sealing end cover (5), an upper sealing end cover (6), a material receiving bin (7), a material receiving bin support plate (8) and a feeding bin (9). The gas explosion processor is characterized by further comprising a support airbag (10), an airbag fixing plate (11), a synchronous cylinder body (12), a synchronous cylinder piston (13), a pulse cylinder body (14), a pulse cylinder piston (15), a pulse cylinder piston connecting plate (16), a guiding rod (17), an elastic sealing component (18) and a control mechanism. According to the invention, the airbag support is adopted for promoting the sealing effect; the opening force of the lower sealing end cover is increased in the manner of double cylinder stacking; the lower sealing end cover can be opened within a shorter period of time; the materials in the storage tank can be instantly exploded within 60-75 milliseconds; the steam explosion effect and efficiency are greatly promoted; the structure is compact; the gas explosion processor is suitable for popularization.

The invention discloses epoxy-modified waterborne alkyd resin and a preparation method thereof. The preparation method comprises the steps of synthesizing of epoxy-modified alkyd resin, wherein organic monobasic fatty acid, organic monobasic aromatic acid, organic acid anhydride, organic polyalcohol, epoxy resin and xylene are stirred when the temperature is increased to 70 DEG C-80 DEG C, reacting under heat preservation is performed when the temperature is increased to 210 DEG C, and the temperature is lowered at once when the acid value is 10-11 mgKOH/g; water bearing of the epoxy-modified alkyd resin, wherein 5-7 parts by mass of trimellitic anhydride is added and inert gas is introduced when the temperature is lowered to 170 DEG C-180 DEG C, the temperature is increased to 170+/-2 DEG C, the temperature is quickly lowered when the acid value reaches 43-48 mgKOH/g, first solvent, second solvent and third solvent are sequentially added in the temperature lowering process, and then the epoxy-modified waterborne alkyd resin is obtained. According to the epoxy-modified waterborne alkyd resin, the stability is high, the epoxy-modified alkyd resin is synthesized through a one-step method and then processed through water bearing, and the synthesis technology is simplified.

The invention provides an intermediate-frequency welding machine for manufacturing a steel grid plate and a welding method. The intermediate-frequency welding machine for manufacturing the steel gridplate comprises a framework (1), wherein a working surface (2) is supported by the framework (1); a Y-axis beam (3) is mounted on the framework (1); a Z-axis beam (4) is slidingly mounted on the Y-axis beam (3) through a Y-axis guide rail (11); the Z-axis beam (4) is fixedly provided with a power source; the power source is connected with at least one welding electrode (5). The intermediate-frequency welding machine for manufacturing the steel grid plate, provided by the invention, has the beneficial effects that the machining cost is reduced, the machining time is shortened, the production efficiency is improved and the equipment cost is low, so that the intermediate-frequency welding machine for manufacturing the steel grid plate is suitable for middle-size and small-size steel grid plate machining enterprises.

The invention relates to a method for preparing a slurry-state fertilizer substrate by using garbage containing organic matters. The method comprises the following steps of: putting the screened garbage containing the organic matters into a flash evaporation blaster, introducing steam to the flash evaporation blaster, controlling the temperature in the flash evaporation blaster to be 210-230 DEG C, the pressure to be 2-3Mpa and the pressure maintaining time to be 80-100 seconds, then finishing flash evaporation blasting within 0.01 second, and preparing the slurry-state fertilizer substrate from the pretreated garbage containing the organic matters. The method is short in acting time, large in blasting power, low in energy consumption, high in efficiency and high in treatment speed, and no harmful gas, such as Dioxin can be generated as the maximum temperature is 230 DEG C. The method disclosed by the invention is convenient for production, strong in operability and environment-friendly, the problems of polluting the environment from garbage and endangering the ecological environment are effectively solved and the cyclic utilization is achieved.

The invention discloses a water-based quick-drying low-VOC alkyd coating and a preparation method thereof. The water-based quick-drying low-VOC alkyd coating is prepared from the following raw materials in parts by weight: 50-80 parts of an alkyd resin aqueous dispersion, 0.05-0.1 part of a defoaming agent, 0.3-0.5 part of a dispersing agent, 10-25 parts of pigment, 10-25 parts of precipitated barium sulfate, 20-50 parts of deionized water, 0.3-1.5 parts of a rheological agent, 0.3-0.5 part of a drier, 0.05-0.2 part of an anti-skinning agent, 0.1-0.5 part of an anti-flash rust agent and 0.3-0.7 part of an anti-settling agent. The alkyd resin aqueous dispersion is prepared from quick-drying alkyd resin, deionized water and an amine neutralizer, wherein the mass ratio of the quick-drying alkyd resin to the deionized water is 3: 1-3.75: 1. According to the water-based quick-drying low-VOC alkyd coating, the VOC content is lower than 100 g/L; the self-dispersion method and the salt forming method are combined, and a certain self-dispersion group is introduced into the resin system so that the compactness of the paint film and the water resistance and the stability of the product are improved.

The invention provides a high-performance polyurethane waterproof coating and a preparation method thereof. The preparation method comprises the following steps of prepolymer synthesis, activation, low-temperature catalysis and heating, and used raw materials comprise polyether polyol, isocyanate, an organic silicon defoamer, nano titanium dioxide, calcium stearate, calcium oxide, alkyl ketene dimer and the like. The high-performance polyurethane waterproof coating disclosed by the invention has the beneficial effects that the high-performance polyurethane waterproof coating disclosed by the invention is not liable to flow after being thickly coated for 3mm; the surface drying time of the polyurethane waterproof coating can be shortened to 3 hours, and the hard drying time can be shortenedto 10 hours; the coating is resistant to low temperature and does not crack at -40 DEG C; moreover, the high-performance polyurethane waterproof coating disclosed by the invention belongs to a single-component polyurethane waterproof coating and is low in price.

The invention relates to a preparation method of an adsorbent for adsorbing heavy metal ions. The preparation method comprises the following steps: (1) air drying, cleaning, drying and crushing raw material Sargassum horneri; and (2) introducing saturated steam into Sargassum horneri particles to reach an assigned pressure, maintaining for a certain time, and instantaneously relieving the pressure to a normal pressure; and (3) carrying out heating reflux by virtue of formaldehyde-sulfuric acid mixed liquid, filtering, flushing filter residues with deionized water, and drying to constant weight, so as to obtain the adsorbent. The preparation method has the beneficial effects that the raw materials have a wide source, is cheap and easily available, the removal rate of a typical heavy metal pollutant, namely chromium ions in water is relatively high, the separation, recycling and reutilization are convenient, the secondary pollution is avoided, the reasonable utilization of resources is realized, and the economic and environmental benefits are good. The preparation method has wide application prospects in sewage treatment.

The invention discloses an adaptive continuous phase hydraulic transmission oil pumping machine. An adjustable base matches a ground angle steel rail, a lifting bolt is mounted on a platform of the base, an output pressure of a variable pump in a hydraulic circuit is connected to a combined control valve through a hose, a one-way valve, a hydraulic control reversing valve, a pressure reducing valve and an overflow valve are mounted on an integrated plate of the combined control valve, the hydraulic circuit is divided into two paths to be controlled through the combined control valve, a stop valve is mounted on a communicating pipe, a pressure relay is mounted on a main oil path leading to a rodless cavity of an oil cylinder, and the overflow valve is mounted on a main oil path leading to arod cavity of the oil cylinder. The machine is reasonable in structure, reliable in performance, convenient to operate and capable of meeting mining operation of various property reservoirs, in particular to thickened oil recovery operation, by means of a hydraulic control adaptive system, the situation that a sucker rod of an oil well changes along with a down stroke speed due to large viscosityof thickened oil is controlled, the acting time is saved, the energy-saving effect is good, the performance is safe and reliable, and the maintenance cost is low.

The invention discloses high-solid-content low-viscosity odorless alkyd resin as well as a preparation method and application thereof, and the high-solid-content low-viscosity odorless alkyd resin is prepared from the following raw materials in parts by mass: 29.5 to 33.5 parts of vegetable oil fatty acid, 18.5 to 21.5 parts of anhydride, 2.5 to 4.9 parts of monobasic acid, 20.3 to 24.1 parts of polyhydric alcohol, 2 to 5 parts of aldehyde resin, 3 to 5 parts of xylene and 14 to 15 parts of organic solvent. The structure and performance of the prepared resin are easy to control and adjust, the prepared resin is used for preparing a two-component polyurethane wood lacquer coating, the hardness reaches up to H or above, the adhesive force is grade 0, the residual VOC is lower than 5g/L after a paint film is dried for 2 days, and the resin is odorless and environmentally friendly and has excellent chemical resistance and thermal stability.

The invention relates to an arsenic trioxide purification system, which comprises a purification furnace, two operation chambers, two material carrying boxes with openings in the tops and two feedingmechanisms, the two ends of the purification furnace are each provided with a first opening, and the two operation chambers are symmetrically distributed at the two ends of the purification furnace; wherein one material carrying box is arranged in the operation chamber, the other material carrying box is arranged in the purification furnace, one ends of the two material carrying boxes are connected through a connecting piece, the other ends of the two material carrying boxes are respectively connected with a cable, and winding mechanisms are respectively arranged in the two operation chambers;a second opening opposite to the first opening is formed in the side wall, close to the purification furnace, of the operation chamber, a bearing table is arranged in the purification furnace, and acooling bed as high as the bearing table is arranged in the operation chamber; and the two feeding mechanisms are symmetrically arranged at the two ends of the purification furnace. The arsenic trioxide purification system is compact in structure and high in treatment efficiency, and the uninterrupted purification effect of the purification furnace can be achieved; and direct water spraying cooling is not needed, the smoke generation amount is greatly reduced, and energy conservation and environmental protection are achieved.

The invention discloses a pressurizing device for conduction oil lubricating grease. The pressurizing device comprises a turnable cover, a speed reducer, a motor, a kettle, a heating device and a conduction oil pipe, wherein the kettle and the turnable cover are rotationally connected through a connecting hinge, a handle is mounted on the turnable cover; a pressure reducing valve and a pressure meter are mounted on two sides of the handle sequentially; a first base is mounted in the rear position of the turnable cover; the motor is mounted on the first base; a driving wheel of the motor and a driven wheel of the speed reducer are rotationally connected through a transmission belt; the motor and a planet agitator arranged in the kettle are in transmission connection through a transmission bar; the conduction oil pipe is mounted on one side of the kettle; the kettle is mounted on a second base; the heating device is mounted at the bottom of the kettle; a thermometer is mounted on the surface of the kettle. The pressurizing device is novel in structure, simple to operate, convenient to control, high in working efficiency, short in working time and convenient to use and popularize.

The invention discloses an adsorbent for adsorbing heavy metal ions and a preparation method thereof. The preparation method of the adsorbent for adsorbing the heavy metal ions comprises the followingsteps: S1, weighing 54-58 parts of rice husks, 22-26 parts of bentonite, 14-18 parts of an oxidizing agent, 2-6 parts of a molecular sieve and 4-8 parts of deionized water for standby application; S2, putting the rice husks and the bentonite into a grinding machine to be subjected to grinding treatment till the rice husks and the bentonite are ground into powder; S3, putting the ground rice husksand bentonite into the molecular sieve for sieving treatment; S4, putting the sieved rice husks and bentonite powder into a mixing machine for mixing treatment; and S5, putting the mixed rice hulls and bentonite into deionized water to be cleaned, and performing drying treatment on the rice hulls and bentonite after cleaning is completed. The adsorbent is simple in preparation process, low in treatment cost and capable of effectively repairing heavy metal ion pollution in water or soil.

The invention discloses a stamping method. The stamping method is achieved through a stamping module, a U-shaped support is used as a supporting frame, the distance between the front wall and the rear wall of the U-shaped support is 100mm, and the module comprises an electromagnet, a lever mechanism, a stepping motor, a stepping motor gear, a stamp roller gear, a stamp roller, an ink storage roller, a photovoltaic module, an anti-dazzling screen, a stamp supporting board and a cooling fan. Firstly, the module is arranged, then an upper control computer sends a stamping command, the computer outputs control signals to a single chip microcomputer system through an interface, the single chip microcomputer system processes the received signals to control the stepping motor to rotate and control the electromagnet to work, so that the stamping action required by information authentication is completed and stamping is achieved. The stamping method is simple in operation, easy to learn, low in operation threshold and short in consumed work time, lowers manpower burden, and improves information checking efficiency. The stamping module used in the stamping method is low in energy consumption, low in noise, reasonable in cost, and easy to popularize on large scale.

The invention discloses a hydraulic driving system used for a brake and composed of a motor, a deceleration mechanism, a screw rod and an oil cylinder. The hydraulic driving system comprises the motor, the deceleration mechanism, the screw rod, the oil cylinder, a pressure relay, a power supply control device and an oil pipe. Two ends of the screw rod are connected with an output shaft of the deceleration mechanism of the motor and a piston arranged in the oil cylinder. The oil cylinder is connected to the brake through the oil pipe. The pressure relay is connected with the oil pipe and a power supply control device. The motor, the deceleration mechanism, the screw rod, the oil cylinder, the pressure relay and the power supply control device form a closed-loop negative feedback control system. The hydraulic driving system has the following beneficial effects: a working process is simple with little abrasion; machine parts are not liable to damage; energy consumption time of work is short and considerable electric energy is saved; due to the feature, the screw rod can be self-locked; high voltage is kept without energy consumption; the driving system is almost free from noises and pollution during work; and the overall machine is easy in structure and highly practical and easy for promotion and application.