439results about How to "Reduce production loss" patented technology

The invention relates to a heating device for improving heating quality of steel billets and a using method thereof. The heating device comprises a heating furnace, a heat storage system blower, a flat flame system blower, a combustion-supporting air pipeline, a gas pipeline, a heat storage system draught fan, an air heat exchanger, a gas heat pipe exchanger, a smoke exhaust pipeline and a chimney. 2-4 ignition burners are arranged at a preheating section of a heating furnace, and 12-30 pairs of heat storage type burners and 4-12 flat flame burners are respectively arranged at a heating section and a soaking zone. The using method comprises the following steps of reasonable distribution of combustion-supporting air and gas flow rate of the heat storage type burners and the flat flame burners, sectional configuration of furnace temperature and heating time, preheating of combustion-supporting air and gas temperature through a high-temperature smoke gas and furnace tail gas in grades, alternative furnace feeding of cold and heat steel billets, intermittent movement of the steel billets, and vaporization cooling of the steel billets. The flow field in the furnace is modified through the system, the optimal configuration of flow rates of air and gas in the burner is realized through reasonable arrangement of gas and air pipeline systems, and the waste heat of high-temperature smoke gas of the heating furnace is gradiently utilized, thus the in-furnace time is shortened, the uniformity of heating the steel billets is improved, and the high-efficiency heating of the steel billets is realized.

The invention discloses a method for processing furnace roller nodules on line without opening a furnace. Due to the fact that the operating speed of band steel in the furnace is the same as the linear speed of furnace rollers, the diameter of the furnace rollers is corrected, and accordingly a new angular speed is produced by a furnace roller motor so as to be the same as the linear speed of other furnace rollers. According to the control scheme, the diameter of the furnace rollers to be repaired and ground is adjusted analogously by an operator so as to change the speed of the furnace rollers, and accordingly friction is generated between the furnace roller and the band steel, so that the nodules attached to the surfaces of the furnace rollers are eliminated or smoothed. Compared with the prior art, by means of the method for the furnace roller nodules in the initial stage, the quality deflects such as hard spots on the surfaces of the band steel are effectively relieved or eliminated, the surface quality of a finished roll is improved, the frequency of furnace opening to clean the furnace roller nodules annually is decreased, and the service life and the economic life of the furnace rollers are prolonged.

The invention provides an over-current protection system and over-current protection method for a liquid crystal display panel. The over-current protection system is composed of a time sequence controller and a power management chip. The time sequence controller consists of an I2C host module, an over-current detection module and a time sequence control module. The power management chip includes an I2C slave module, a plurality of output channels, an analog-to-digital conversion module and a clock signal counting module. The I2C host module sends an output channel selection instruction; the clock signal counting module sends out a collection instruction based on a starting signal outputted by the time sequence control module and a plurality of clock signals; after the analog-to-digital conversion module receives the collection instruction, a driving current outputted by the corresponding output channel is collected based on the output channel selection instruction and a digital signalis obtained; and the over-current detection module determines whether the driving current is in an over-current state based on the digital signal. Therefore, over-current detection accuracy is improved and the internal circuitry of the liquid crystal display panel is protected.

A method for preparing dehydrated fruits, vegetables and tubers, particularly potato products. The steps of the method include: boiling the whole raw edible product or slices or pieces of the raw edible product for a time sufficient to partially cook the starch and soften the tissue of the edible product; comminuting the cooked product; and drying the comminuted product. The raw edible product is preferably unpeeled or partially peeled. The resulting dehydrated product: (1) retains more Vitamin C; (2) has a lighter color; (3) has a higher percent of free amylose; (4) has fewer broken cells; and (5) has fewer degradation products than a corresponding product produced by conventional methods.

The invention provides a liquid composition for removing sulfide in gas, which consists of an absorbent, an auxiliary agent and an antifoaming agent, wherein the absorbent consists of steric hindrance amine and alkanolamine; the auxiliary agent is one or a mixture of thiazoles, fatty amine and phenols; and the antifoaming agent is siloxane. The liquid composition comprises the following components in percentage by weight: 29 to 89 percent of absorbent, 10 to 70 percent of auxiliary agent and 0.01 to 1 percent of antifoaming agent. The liquid composition can simultaneously and effectively remove organic sulfur and inorganic sulfur in the gas, has obvious desulfurization effect, can effectively protect production equipment, and reduces the loss and the maintenance cost.

The invention discloses a method for preparing dapoxetine hydrochloride. The method comprises the following steps: subjecting (s)-3-amino-3-phenylpropionic acid or an ester thereof to a reduction reaction in a reduction system prepared from a hydroborate and a boron trifluoride complex, so as to obtain an intermediate 1, i.e. (s)-3-amino-3-phenylpropanol; subjecting the (s) intermediate 1 to an Eschweiler-Clark reaction with formic acid and formaldehyde, so as to obtain an intermediate 2; subjecting the intermediate 2 to a Williamson ether forming reaction with 1-fluoronaphthalene, so as to obtain a free alkali, i.e. (s)-N,N-dimethyl-3-(1-naphthyloxy)phenyl propyl amine; subjecting the free alkali to a salt forming reaction with alcohol-acyl chloride or a chloride thereof, a hydrochloric acid organic solution or hydrochloric acid gas, thereby obtaining dapoxetine hydrochloride. According to the method, the synthesis route is low in production cost, the reaction conditions are mild, all the materials are readily available, the raw materials are low in toxicity, the reaction is simple in operation and high in safety, and the product is high in purity and yield and is environmentally friendly, so that the method is applicable to industrial large-scale production.

The invention discloses a system used for controlling machine production data and a method thereof. The system comprises a test database, a data processing unit, a verification unit, a machine monitoring system server and an adjusting client. The method comprises steps that, production data parameters are acquired and are stored in the test database; operation processing on the acquired data is carried out to acquire a process parameter scope; data parameters are adjusted by employing the adjusting client and according to historical data to acquire a required progress parameter scope. Through the system and the method, reference values of all parameters under all conditions in the process scope can be figured out through calculation, determination is carried out according to experience and the calculation results, forward-looking determination for the process parameter scope is realized, error operation is reduced, influence of the error operation on a real-time production system is further reduced, and thereby validity and accuracy of the process parameter scope are improved.

The invention belongs to the technical field of engineering plastics, and concretely relates to a wear-resistant nylon composite material and a preparation method thereof. The wear-resistant nylon composite material comprises, in parts by weight, 100 parts of nylon, 6-20 parts of a solid lubricant, 30-35 parts of glass fibre, 12-15 parts of teflon, 3-7 parts of silicone powder, 4-10 parts of a compatibilizer, and 1-2 parts of an anti-oxidant, wherein the solid lubricant comprises 40-70 parts of molybdenum disulfide and 30-60 parts of tungsten sulfide, is prepared by uniformly mixing the two compositions and performing ball milling in a ball mill at a rotation speed of 250-350 r/min for 6-12 h, and has the particle size of 300-400 nm.

The invention relates to an improved half-opened wear-resisting impeller, in which, the vanes and the web are made of different materials and the vanes is made of high-abrasive material and then combined with the web, so that the operation life of the integral impeller has increased greatly.

The invention discloses a zero-discharging technology in reclaimed water reuse. A biochemical water-discharging tank which is used for accommodating biochemically discharged water is arranged. An ultrafiltration device, a roll-type reverse osmosis membrane device, a super reverse osmosis membrane device and an evaporation device are successively arranged on the biochemical water-discharging tank.A clean water tank is connected to the roll-type reverse osmosis membrane device, the super reverse osmosis membrane device and the evaporation device. The invention discloses a super reverse osmosismembrane device which includes a circular tube pressure bearing outer shell, a metal sealing piece, a flange disk, a fluid reversing disk, a sealed circular tube pressure bearing inner shell, a waterdistributer, an inner pulling rod, a supporting and guiding disk, a membrane piece, a liquid inlet pipe and a liquid outlet pipe. The invention provides the zero-discharging technology in reclaimed water reuse, which can reduce energy consumption of sewage treatment and further reduce investment required in the sewage treatment. By means of the technology, a sewage treatment effect is improved anda zero-discharging requirement is achieved.

The invention discloses a separating and filtering membrane column. The separating and filtering membrane column comprises a hollow cylindrical pressure-bearing shell, at least two guide discs and at least one diaphragm are arranged in the pressure-bearing shell, a central pull rod is also arranged at the middle positions of the guide disc and the diaphragm for fixation, a stacking plate, a fluid reserving disc and a flange plate are arranged at each of the upper end and the lower end of the pressure-bearing shell from inside to outside symmetrically, the flange plates seal the upper end and the lower end of the pressure-bearing shell, and an outer pull rod for tensioning the flange plate on the pressure-bearing shell is also arranged on the flange plate. According to the separating and filtering membrane column, the pressure loss is further reduced, the sewage purifying efficiency is improved, the using effect is also improved, good market recognition is achieved, industrial development is promoted and the competitive capacity of enterprises is improved.

The invention relates to a system and a method for processing data formed when multiple users co-buy commodities. By the system and the method, releasing of a co-buy invitation by a buyer and co-buying of a same commodity and completing of a transaction by multiple users are realized. The system comprises a server device, buyer client devices and a seller client device, the server device comprises a storage and a processor in communication with the storage, and both the buyer client devices and the seller client device are in communication connection with the processor. The method includes that one buyer client device sets information of a co-buy activity for a needed commodity and sends the co-buy invitation out through the processor; the processor receives a selling offer invitation sent out by the seller client device; a plurality of the buyer client devices send buying offers to the processor, and the processor sends the buying offers to the seller client device; when the co-buy activity is finished, a final transaction price is generated. Compared with the prior art, the system and the method have the advantages of high interactivity, high feedback speed and the like.

The invention provides an anti-electrostatic heater plate structure applied to photoresist coating of flat-plate displays and developer tables. A glass substrate is arranged on the top surface of a heater plate and is heated up by the same. A plurality of jacking rods capable of jacking upwards from the top surface of the heater plate are mounted in the heater plate. A plurality of fixed jacking pins arranged at intervals are disposed on the top surface of the heater plate and used for supporting the glass substrate on the top surface of the heater plate. Compared with the conventional manner of directly attaching the glass substrate onto the surface of the heater plate, the manner of utilizing the jacking pins to jack the glass substrate by 0.1MM can not only eliminate electrostatic influences of the heater plate but eliminate influences to heat radiation conduction.

The invention relates to the technical field of welding of a PCB (Printed Circuit Board), and provides a welding process of a plug-in unit of the PCB, which can effectively improve the production efficiency, improves the production quality, reduces the production loss and cost, and reduces the operation difficulty and human errors. The process comprises the following steps of: (1) trimming supporting legs of components: trimming the supporting legs of the components into union and formal specification; (2) inserting the components: respectively the components processed in step (1) into corresponding welding pads of the PCB on a tray of a wave soldering machine; (3) viewing and pressing the components: performing visual inspection to confirm that the components are correctly inserted, and then pressing the components on the PCB; (4) performing wave soldering welding: performing welding operation on the PCB by the wave soldering machine; (5) taking out the PCB: taking out the PCB from the tray of the wave soldering machine; (6) detection: detecting the welding quality of the PCB, if the welding quality is qualified, obtaining the finished product, and if the welding quality is disqualified, performing the next step on the disqualified product; and (7) repairing welding: performing manual repairing welding operation on detected poor welding points of the PCB, and obtaining the finished product.

The present invention relates to a mounting method of passive component, and particularly relates to a mounting method of a small-size passive component. A passive component partially covered by an adhesive material is provided. Before the adhesive layer is melted, the adhesive material is melted and then solidified to form a fixing structure between the passive component and a substrate for fixing the passive component on the substrate. Therefore, the tombstone problem caused by uneven pulling force that the melted solder applies to the two ends of the passive component is effectively solved. The yield rate is increased, and the product loss is reduced.

The invention relates to the field of medicines, and in particular relates to a method for preparing dapoxetine hydrochloride. The method comprises the following concrete steps: (1) by taking chiral L-phenylalanine hydrochloride as a starting material, and reducing by adopting a reducing system to obtain an intermediate II; (2) performing Eschweiler-Clark reaction on the intermediate II and paraformaldehyde or formaldehyde to obtain an intermediate III; and (3) performing Williamson aethrization reaction on the intermediate III and 1-naphthaline to obtain the dapoxetine hydrochloride. According to the invention, chiral L-phenylalanine hydrochloride is used as the raw material, so resolution of a product is avoided, the raw material is easily obtained and relatively low in price, conventional equipment can meet production requirements, expensive and virulent reagents are not used, reaction conditions are mild, pollution is little, control is easy and industrialized production is facilitated.

The invention discloses a system and a method for producing a fracturing propping agent by taking red mud as a raw material. The system comprises a charging machine, a high temperature furnace, a swing-out device, a blanking bin, a tempering furnace and screening equipment, wherein the high temperature furnace is connected with the blanking bin or the swing-out device; dosing is performed by taking inorganic solid wastes as raw materials; and the product is prepared by performing high-temperature melting in the high temperature furnace and molding in a molding device. The method comprises the following steps: (1) dosing, namely mixing pure red mud or red mud with one or more of fluorite, silica sand, potassium (or sodium) feldspar and dolomite; (2) mixing and performing wet grinding, namely mixing and performing wet grinding on the prepared materials; (3) drying and granulating; (4) melting the granulated materials in the high temperature furnace; (5) molding the granulated materials into propping agent granules by utilizing the molding device; and (6) screening, weighing and packaging the propping agent granules by virtue of the screening equipment. The system and the method are high in product yield, high in production efficiency and low in cost.