205results about How to "Reduce production management costs" patented technology

The invention provides a preparation method of a hydrophilic automatically-cleaning coating with photocatalytic activity, and belongs to the technical field of chemical engineering. The preparation method is characterized in that butyl titanate and ethyl orthosilicate are utilized as precursors; nanoscale TiO2 / SiO2 sol is formed through a sol-gel method; and the nanoscale TiO2 / SiO2 sol is coated on the surface of an object and is naturally dried at normal temperature to form an anatase nanoscale TiO2 / SiO2 composite film with photocatalytic activity. When the anatase nanoscale TiO2 / SiO2 composite film with photocatalytic activity is coated on a solar photovoltaic panel, a vehicle window glass plate or a building glass plate at a normal temperature, the anatase nanoscale TiO2 / SiO2 composite film with photocatalytic activity can fast form a hydrophilic coating. Under natural light irradiation, the hydrophilic coating can decompose greasy dirt adhered to the hydrophilic coating into inorganic pollutants, and through rainwater flushing or artificial washing, the inorganic pollutants are removed so that the solar photovoltaic panel or the vehicle window glass plate or the building glass plate is kept as clean as a new one for a long time. The preparation method provided by the invention reduces a production management cost and improves solar photovoltaic panel generating efficiency.

The invention discloses a technique for rapidly extracting ramie hemp erwinia bacterium factory production fermentation, the technique comprises preprocessing material, immersing or sprinkling and inoculating, immersing or fermenting, deactivating with hot water, and the procedure of circulation washing, water dressing and fiber finish, erwinia bacterium which has broad-spectrum and high effective to degumming, pulping and saccharifying of herb fiber material, and bacterial agent preparation and activated technical parameter. The erwinia bacterium addicts the mannose, the peak for secreting non-cellulose to degrade key enzyme (pectic enzyme, beta-mannase and xylanase) can be achieved through purely culturing for 7h to 9h. Bacterial agent is inoculated on herb fiber material such as ramie and the like for activating the bacterial agent for 5h-6h, fermentation forage fodder turns to blue after fermenting for 5h-6h, pectine, hemicellulose and partial lignin which are partially degraded and associated in fiber cell are stripped, non-cellulose residues which are absorbed on fiber can be removed by means of the flushing of high-pressure flushing, and the purpose of extracting net fiber can be reached.

The invention relates to the technical field of agricultural production, and particularly provides a monitoring method for crop diseases and pests. According to the technical scheme of the invention, the method is conducted based on the unmanned plane technology and the cloud computing technology. The method comprises the steps of establishing a crop disease and pest database, shooting the image of a field crop through the cruising of an unmanned plane, calculating, pre-warning, accurately shooting, calculating for a second time, guiding the disease and pest control and prevention, and the like. On the basis of establishing the crop disease and pest database, the image data of the field crop are shot by the unmanned plane. Through the cloud computing-based analysis and comparison, the early warning for crop diseases and pests is given out in time. Meanwhile, the disease and pest control and prevention is guided and the agricultural production level is improved. The agricultural production management cost is reduced. Moreover, the yield, the quality and the benefit of agricultural products are improved.

The invention discloses an execution method of computer integrated manufacturing based on cloud manufacturing and a system thereof, and relates to the field of virtual network resource sharing. The execution method of the computer integrated manufacturing based on cloud manufacturing comprises the following steps: S1, obtaining product resource information relating to a whole product life cycle provided by a product manufacturer, classifying or integrating the product resource information according to the contents, and obtaining pending input information, S2, collecting the pending input information together to form a virtual resource pool by means of virtualization technology, S3, creating a cloud platform according to the virtual resource pool in a network operation environment so that a user is capable of applying and managing the product with the help of cloud service provided by the manufacturing cloud platform, S4, obtaining the product resource information after interaction with the cloud platform. The execution method of computer integrated manufacturing based on cloud manufacturing and the system thereof have the advantages that automation level and entire production efficiency of a manufacturing industry are improved and group informatization of factories or manufacturing-type enterprises is realized.

The invention discloses vermicompost organic compound fertilizer capable of being used for ryegrass, and a preparation method thereof, and belongs to a manner of cycle use of agricultural wastes. The organic compound fertilizer comprises, by weight, 6-9 parts of the vermicompost and 1-2 parts of inorganic fertilizer, wherein the inorganic fertilizer comprises, by weight, 3.5-7 parts of urea, 4.5-9 parts of phosphorus superphosphate and 2-4 parts of potassium chloride. The vermicompost organic compound fertilizer directly provides a reasonable use path of the vermicompost organic compound fertilizer, and indirectly solves the harmful problems of livestock and poultry breeding organic wastes such as pig manure and goat manure to the environment. The compound fertilizer is reasonable in organic and inorganic proportions, has long-term fertilizer capacity of organic fertilizer and short-term fertilizer capacity of inorganic fertilizer at the same time. By applying enough base fertilizer once during a planting process of the ryegrass and applying the compound fertilizer once in a harvest middle stage, nutritional requirements of the ryegrass during the whole production period can be met. Fertilizer cost is reduced; a topdressing stage during the planting process of the ryegrass is omitted, so that production and management cost for the ryegrass can be saved.

An integrated frame longitudinal beam connecting support comprises a base and a bumper mounting portion, a beam assembly mounting portion, a frame fixing portion and a plate spring mounting portion which are arranged on the base. The back of the bumper mounting portion is fixedly connected to the front end of the frame fixing portion through the beam assembly mounting portion, the bottom of the frame fixing portion is fixedly connected to the plate spring mounting portion, a sunken water tank mounting portion and a cab front suspension turning arm mounting portion are arranged between the beam assembly mounting portion and the frame fixing portion, a front-lower protective supporting base fixing portion is fixedly connected to the lower portion of the beam assembly mounting portion, and a front suspension vibration absorber mounting support is fixedly connected to the side of the beam assembly mounting portion; the base is integrated with the bumper mounting portion, the beam assembly mounting portion, the frame fixing portion, the plate spring mounting portion, the sunken water tank mounting portion, the front-lower protective supporting base fixing portion, the cab front suspension turning arm mounting portion and the front suspension vibration absorber mounting support. The support is in high integrated level, is reasonable in structure and has high mechanical strengthen.

The invention discloses a method for automatically identifying an LED load light source by using a memory chip and an implementation device thereof. The device comprises a power supply and an LED load light source, wherein the power supply mainly comprises an AC-DC loop, a DC-DC loop, a constant current source control loop, a constant current source output loop, an ID identification loop, and the like; and the LED load light source mainly comprises an LED branch, an ID memory, and the like. A general constant current control power device which is not limited by LED light source specifications and an LED light source device which is provided with characteristic identification codes have simple manufacture and can greatly reduce product types and lower manufacture and management costs. The LED load light source needs no current-limiting resistor, reduces heat energy generated by the current-limiting resistor, prolongs the service life of products, and maintains the characteristic of good generality. Compared with the common constant current source, the power supply is not only suitable for constant current output to ensure LED luminous efficiency, but also can be suitable for LED load light sources of different specifications, thereby having wider applicability.

The invention relates to a device system for online monitoring pressure and flow of supplied water in real time, which comprises a monitoring control center by wireless signal transmission and monitoring control stations dispersed and arranged for each water customer; and the monitoring control station comprises a remote signal transmission water meter (2), an intelligent data collector (3), a water guide electromagnetic valve (11), a remote control water power valve (12), a microwave data transmission radio station (6) or a GPRS / CDMA (21), a pressure sensor (4), a single input digital displaying instrument (5), a power supply I, a programmable controller (8), a sound and light alarming device (10), a common sluice valve (17), a bypass valve (18) and the like. The monitoring control center comprises a power supply II, the microwave data transmission radio station (6) or an Internet (22), an industrial controller operating software (9), the programmable controller (8), the sound and light alarming device (10) and the like. The device system can realize the functions of monitoring the pressure and flow of the supplied water of the water customer on line in real time, pre-charging water fee of the customers, automatically descending the water fee along the accumulated water consumption amount of the customer, reminding the customer of paying the water fee in advance, automatically cutting off the water supply by remote control when defaulting, automatically supplying water by remote control after payment and the like.

The invention relates to an air conditioning fan motor controller and a programming control method thereof. A central control processor of the motor controller is connected with a plurality of paths of gear instruction input ports; each path of gear instruction input port corresponds to a parameter value N in the central control processor; when one path of gear instruction input port is switched on, the central control processor controls a power driving motor to drive a fan motor to run with the set parameter value N; the central control processor is also provided with a communication interface circuit communicating with outside communication equipment; and the outside communication equipment changes the parameter values N corresponding to the gear instruction input ports in the central control processor. By the invention, on-site programming can be realized, so that an air conditioner user can change the original gear parameter target value of the motor according to an actual requirement; furthermore, requirements of other types of air conditioners on the gear parameter target values of different motors can be met and the cost of the air conditioner is saved greatly.

The invention relates to an tntegral type conveyer with double compression rollers. The integral type conveyer comprises a conveying rack and a conveying platform, wherein a first bevel wheel speed reduction motor, a second bevel wheel speed reduction motor and a conveying platform are arranged on the conveying rack; a flower roller and a smooth roller are arranged on the conveying platform; a double-compression-roller support frame is arranged on the conveying platform; a driving central shaft is arranged on the double-compression-roller support frame and is connected with a flower roller rotary support beam and a smooth roller rotary support beam, so that the flower roller rotary support beam and the smooth roller rotary support beam drive the central shaft to swing. According to the integral type conveyer with double compression rollers, the height difference of the double compression rollers and the conveying platform is respectively adjusted by virtue of a hand wheel, so that the conveyer can be adapted to bags with multiple specifications and multiple materials, the compactness and the flatness of a packaging bag are guaranteed, the operation smoothness of a production line is improved, and the production management cost is reduced; after the packaging bag is finished by the double compression rollers for twice, materials in the packaging bag are uniformly distributed, and the shape is flat, therefore the stacking quality and the operation speed of the production line are improved.

The invention discloses an integrated photovoltaic support system. The integrated photovoltaic support system includes a photovoltaic assembly and photovoltaic supports, wherein one end of the photovoltaic assembly hinged to the photovoltaic supports through a metal soleplate, and the other end of the photovoltaic assembly is connected with the photovoltaic supports through an adjustable guide rail; each photovoltaic support is a hollow structure; the top of each photovoltaic support is provided with a feed port; the bottom of each photovoltaic support is provided with a discharge port; a plurality of photovoltaic supports are connected through connection plates to form the integrated photovoltaic support system; each connection plate is a cuboid hollow structure; four triangular holes are symmetrically formed in the middle part of each connection plate; four corners of each connection plate are correspondingly provided with second flanges; and mounting holes are formed in the second flanges for connecting the photovoltaic supports. The user can directly perform integrated purchase and self installation, and does not need perform tedious design and heavy construction work; the integrated photovoltaic support system is short in the installation period and is simple and efficient; big holes are formed in the flanges on the four corners of each photovoltaic support to match the mounting holes in the flanges of the connection plates, and connection is performed through threaded fasteners to realize the bridge effect among the photovoltaic supports; and when the integrated photovoltaic support system is applied to a large area, the integrated photovoltaic support system has the advantages of being high in the overall performance, having higher capability of resisting severe environment, such as strong wind, rain and snow.

The invention discloses a method for reducing tissue culture production cost of hosta plantagineu. The method comprises the steps: obtaining a tissue block with an adventitious bud, differentiating and multiplying, rooting, transplanting, acclimatizing, planting in a large land, and the like. According to the method, through screening a proper culture medium and selecting a proper culturing and transplanting method, the culture efficiency of the hosta plantagineu is improved, and the production cost is lowered.

The invention discloses a water drainage and gas production intensity determination method capable of improving the water drainage and gas production efficiency of the coal bed gas. The method adaptsto real-time dynamic changes of reservoirs and actual production performance of coal bed gas wells, can effectively avoid serious reservoir damages caused by unreasonable water drainage and gas production intensity design in an early-stage water drainage and gas production scheme, and is especially applicable to new development areas with limited basic data or deficient water drainage and gas production experience. The method has strong pertinency and universality, is simple to operate and easy to understand, can effectively guide field operators to conduct dynamic analysis on water drainage and gas production and conduct production management on water drainage and gas production, greatly reduces the fault rate of water drainage and gas production and the production management cost, prolongs the operation cycle and improves the gas production amount of the single well.

The invention discloses a balanced suspension beam assembly with an integrated air reservoir function and belongs to the technical field of motor tractor chassis structural components. The balanced suspension beam assembly comprises a beam, a beam connecting bracket, a blanking cap plate assembly, a sealing screw plug and a sealing ring, wherein the beam is a cold-drawn steel pipe; one end of the beam connecting bracket is welded at two ends of the beam so as to form a welding assembly; the other end of the beam connecting bracket is connected with a longitudinal beam web plane; the blanking cap plate assembly is respectively welded on a groove surface of the beam connecting bracket; the blanking cap plate assembly is formed by welding a plate-shaped blanking cap plate and a steel barrel into an assembly; the steel barrel is arranged at an intermediate position of the blanking cap plate; the sealing ring is arranged at a thread of the sealing screw plug in a sleeving manner and then is in threaded connection with the steel barrel on the blanking cap plate assembly, so that a closed air chamber is formed inside the beam assembly. The formed air chamber is excellent in sealing performance and can bear pressure of 13 atmospheric pressures without air leakage, and the extreme pressure resistance can bear 40 atmospheric pressures.

The invention relates to a Chinese torreya cultivation natural grass-growing method. The method comprises the following steps of (1) conducting normal weeding management to a fruit garden before June, (2) selecting grass and preserving grass in the middle of June, (3) conducting artificial weeding management according to a dripping line tree preserving disc of a natural tree shape of the Chinese torreya, (4) conducting machinery mowing to the fruit garden in the first ten-day of September with the grass preservation height of 5 to 8cm, (5) and returning the mowed weeds working as organic fertilizer to the Chinese torreya fruit garden. During summer management of Chinese torreya cultivation, cultivation base weed seeds are selected, grass preservation position, time and mowing time are management; the ground is covered with weeds naturally growing in the cultivation base, so purposes of temperature reduction, moisture increase and water and soil conservation can be achieved; damage to Chinese torreya growth by summer high temperature can be effectively solved; Chinese torreya small environment and Chinese torreya growth micro environment can be improved; and Chinese torreya growth in summer can be facilitated and Chinese torreya production and management cost can be reduced.

The invention relates to a biogas liquid pipeline fertilization device, which includes waste water disposal pump placed at the bottom part of the biogas liquid storage pool, the inverted valve which is placed above the immersed type waste water disposal pump, the liquid inlet tube which is connected to the inverted valve, the main tube which is connected to the liquid inlet tube, the fast pressure-relief valve and gate valve which are installed on the main tube, many branch tubes which are connected to the main tube, the water outlet pile which is connected to the main tube or the branch tube, the control valve which is fixed on the said water outlet pile, the soft tube which is connected to the water outlet pile, the deposit collecting tubes which are installed at the bottom part and the right angle corner of the main tube and branch tubes, the outlet valve which are installed on the said main tube and the branch tubes. The biogas liquid pipeline fertilization device can fertilize the field, which is good for environmental protection, and has the advantages of low cost and long lifespan.

The invention discloses a battery management system and a method for numbering a battery detection unit. The system herein includes a signal generation unit, a BCU and at least two BMUs. The signal generation unit is connected to any one of the at least two BMUs. The at least two BMUs are successively connected. One BMU of the at least two BMUs is intended for receiving a triggering signal which is transmitted by the signal generation unit or is transmitted by a first BMU which is connected to the any one BMU, and based on the triggering signal, acquiring a digital measurement signal value, and transmitting the digital measurement signal value to the BCU. The BCU is connected to each BMU, and is intended for based on the received digital signal measured value, numbering each BMU, and issuing a corresponding number to each BMU. According to the invention, each BMU outputs a digital measurement signal value to the BCU, the BCU automatically numbers the BMUs in accordance with the magnitude of the digital measurement signal values, so that in the production process, all BMUs are the same, the system requires no special technology to differentiate different BMUs and has low management cost.

An eggplant cultivation method at middle and upper reaches of Yangtze River after later autumn comprises the steps that tree stock is sown from May 5th to May 15th; scions are sewn from June 5th to June 15th; grafting is performed from June 25th to July 5th; planting is performed 10 d-14 d after grafting is performed, the wide-plot and narrow-trench cultivation mode is adopted, the plot width is 2 m, the trench width is 0.5 m, the row spacing is 0.5 m, and two rows of plants are planted in one plot; no pruning is needed inside a plant growth period, and fruit thinning is performed from the beginning of setting of the third batch of fruits to the end of harvesting; water and fertilizer management is performed, reasonable topdressing is performed after planting and seedling recovering are performed, and insect disease prevention is paid attention to; harvesting is performed 45d to 50 d after planting. According to the method, the heat-resisting disease-resistant, high-yield and high-quality eggplant variety is selected to be grafted with stock solanum torvum with the good disease resistance and good graft compatibility, healthy plants of the grafted eggplants are adopted for oversummer, the plant resistance is good, and the eggplants are high in growth vigor, high in yielding ability, black and shiny in fruit skin color and good in commodity after oversummer through the field thin planting method; the plant disease and insect pest occurrence frequency is lowered, the pesticide usage amount is decreased, and the seedling consumption cost, the labor cost and the production management cost are lowered.

The invention discloses an office information management system; the office information management system comprises a user management module, a personnel management module, a work management module, a customer management module, and an information sharing module; the user management module is used for registrations of internal users, entering, changing, deleting basic information, and managing user permission levels; the personnel management module is used for managing, sharing and exhibiting internal user personal file information and promotion reward information; the work management module is used for assigning and managing product information of an enterprise and the relative business procedures; the customer management module is used for managing profile information of enterprise customers, relative product business exchange information and the current business contact information; the information sharing module is used for sharing the personnel change information, daily assignment information of each department, and enterprise production information inside the enterprise. The office information management system is convenient for increasing the working efficiency of the enterprise, and saves the cost of production management.

The invention relates to a silicon oil damper and in particular relates to a silicone oil damper of a diesel engine crankshaft. The silicon oil damper comprises a T-shaped housing, a T-shaped inertial block, a cover plate, a cooling fin and a bearing belt, wherein the cooling fin and the bearing belt are fixedly connected to the T-shaped housing; the T-shaped inertial block is mounted in the T-shaped housing; silicon oil is injected into a gap between the T-shaped inertial block and the T-shaped housing; the T-shaped inertial block, the bearing belt and the silicon oil are sealed in the T-shaped housing of the silicon oil damper. The silicon oil damper is compact in structure and small in size; the difficulty of limited actual diesel engine mounting space can be overcome; an original annular damper is incapable of effectively reducing torsion and vibration of the engine crankshaft.

The invention relates to a silicone oil shock absorber. The silicone oil shock absorber comprises a silicone oil shock absorber shell, an inertia block, a cover plate and a bearing belt, wherein the center of the silicone oil shock absorber shell is provided with a through hole in which an engine crankshaft is sleeved; the periphery of the silicone oil shock absorber shell and the cover plate form a circle of cavity; the inertia block is accommodated in the cavity; the inertia block and the silicone oil shock absorber shell are separated axially by the bearing belt; the gap between the inertia block and the silicone oil shock absorber shell is filled with silicone oil; the inertia block, the bearing belt and the silicone oil are sealed in the silicone oil shock absorber shell by the cover plate; and radiating fins are welded on the two sides of the silicone oil shock absorber shell. The silicone oil shock absorber has the advantages that: the silicone oil shock absorber can effectively reduce the tensional vibration of the engine crankshaft, has a compact structure, reduces installation volume and is convenient to install; due to the addition of the radiating fins, not only a radiating effect is achieved, but also a decorative effect is achieved; simultaneously, engine weight, component number and production management cost can be reduced.

The invention provides a packaging box and a packaging method thereof. The packaging box comprises a box body used for accommodating plate-shaped objects and further comprises clamping groove structures and blocking block structures, wherein the clamping grooves are arranged on the side walls on the periphery in the box body; the blocking structures are used for being clamped with the clamping groove structures mutually; and the clamping positions of the blocking block structures in the clamping groove structures can be adjusted so as to adjust the inner diameter of the box body. Since the clamping groove structures and the blocking block structures are arranged in the box body and the clamping positions of the blocking block structures in the clamping groove structures can be adjusted, so that the inner diameter of the box body can be adjusted and the plate-shaped objects of different sizes can be packaged through the box body, therefore, one kind of the packaging box can package products of different sizes, the product packaging uniformity is improved, further, the product packaging cost and production management cost are reduced greatly and storage management and recycling of an enterprise to the packaging box are facilitated.

The invention provides a high-quality and high-yield cultivation method of muskmelon, the method comprising the following steps: (1), selection of production areas and production facilities; (2), timely sowing and seedling cultivation, and cultivating strong seedlings; (3), fertilization and land preparation; Four), timely field planting, hanging vine cultivation; (five), single vine pruning, select the remaining sub-vines to set fruit; (6), re-apply swelling melon fertilizer water, increase the application of high potassium foliar fertilizer; (7), control the temperature of the shed, Harvest in good time. The high-quality and high-yield cultivation method of muskmelon of the present invention reduces the use of chemical pesticides throughout the cultivation process, avoiding excessive pesticide residues; the base fertilizer is mainly organic fertilizers such as chicken manure, sheep manure, and vegetable cakes, which reduces the residues of nitrates and heavy metals in fruits Exceeding the standard; increasing the application of high-potassium foliar fertilizer during the melon swelling period significantly improved the taste and flavor of the fruit, and at the same time extended its production and supply period.

The invention discloses a special assistant SYNOX M4229 for beta-crystal-form random copolymerization polypropylene tube materials and application thereof. The special assistant is prepared from the following components in parts by weight: 50-85 parts of anti-aging assistant, 5-20 parts of processing assistant and 15-50 parts of beta-nucleating agent, wherein the anti-aging assistant is prepared from a hindered phenol antioxidant, an amine oxide antioxidant, a phosphite ester antioxidant and a hindered amine stabilizer in a mass ratio of 1:(0-2):(0.3-2.5):(0-0.3); and the processing assistant is prepared from an acid acceptor and a lubricant in a mass ratio of 1:(0.2-1.5); and the beta-nucleating agent is any one or mixture of two of amide compounds. The special assistant disclosed by the invention enhances the thermal-deformation temperature, shock resistance, service life and anti-aging degree of the tube material; the beta-crystal content of the tube material is higher than 90%; and the oxidation induction period of the tube material is more than 90 minutes.

The invention relates to a torque overload protection device. The device comprises a driving head, a driving seat, driving balls, a pressing ring, a driving device, an adjusting screw, an adjusting ball, an adjusting block, a butterfly spring group and a fixing bolt, wherein the cylindrical driving head is provided with a middle hole matched with a valve rod; a plurality of driving holes are uniformly formed on the top of the outer wall of the driving head; a limiting flange is arranged in the middle of the outer wall of the driving head; a plurality of bolt holes are formed at the periphery of the driving seat; the driving seat is provided with a middle hole matched with the excircle of a chattering head, and a plurality of driving grooves are uniformly distributed on the top end face of the middle hole; the driving seat is connected with the driving device through the fixing bolt; the lower section of the adjusting screw can stretch into a middle hole of the adjusting block, and the lower end of the adjusting screw is in compression joint with the adjusting ball; and the driving balls are arranged in the driving grooves and can move to the driving holes along the driving grooves. Compared with the prior art, the invention has the advantages that: the torque overload protection device is simple, convenient and accurate, has high control accuracy, can be set on site and the like.

The invention relates to the field of logistics, in particular to a complete vehicle logistics order prediction method and device, a logistics system and a computer readable medium. The method comprises the steps of obtaining whole vehicle logistics order data of a historical month; extracting features to construct a learning sample set; according to the learning sample set, constructing a gradient lifting decision tree model for training and evaluation, and obtaining a logistics monthly order prediction model of the whole vehicle; and inputting a to-be-predicted line, predicting a complete vehicle logistics order of the line in the future month according to the complete vehicle logistics monthly order prediction model, and outputting the complete vehicle logistics order. According to thecomplete vehicle logistics monthly order prediction method, device and system and the storage medium, prediction of the complete vehicle logistics monthly order is achieved, prediction efficiency andprediction accuracy are greatly improved, accurate information is provided for overall planning of transport capacity plans and warehouse management of transport companies, and then production management cost is reduced.

The invention relates to a pressing and fixing assembly used for packaging transistors. The pressing and fixing assembly comprises a PCBA board, the transistors, metal elastic pieces and plastic fixing parts, wherein the metal elastic pieces and the plastic fixing parts are combined together. A containing cavity is formed by the side wall and the bottom wall in each plastic fixing part, inner buckles and supporting ribs are arranged on the inner side wall and / or the inner bottom wall of each containing cavity, the metal elastic pieces are inserted between the inner buckles and the supporting ribs to be fixed on the plastic fixing parts, a supporting step is arranged on the inner side wall and / or the inner bottom wall of each containing cavity, and outer buckles are arranged on the outer bottom wall of each containing cavity and extend outwards in the reverse direction of the corresponding metal elastic piece. By the adoption of the technical scheme, the size of the PCBA board is greatly reduced, the size of a complete machine is reduced, the material cost of the complete machine is reduced obviously, the heat dissipation stability and the reliability are high, the pressing and fixing assembly is low in cost, the technological complexity of the welding process can be greatly lowered, the technological time is shortened, the defect rate in the process is decreased, and the production management cost is reduced.

The invention belongs to the technical field of oil production, and particularly relates to a method for real-time acquisition of a working fluid level of a surface drive screw pump well. The method comprises the steps that first, well data is obtained, and active power of motor input of the surface drive screw pump well and relevant oil well parameters are collected; second, polish rod torque Mris obtained, and the polish rod torque is obtained by a motor of the ground drive screw pump well transmitting power through a reducing transmission device; third, torque M1 required for lifting fluidin a downhole screw pump is obtained; fourth, pump discharge pressure pout is acquired; and fifth, a value of the working fluid level of an oil well can be obtained according to a reusing formula. According to the method for real-time acquisition of the working fluid level of the surface drive screw pump well, the real-time monitoring of the working fluid level of the surface drive screw pump well can be achieved with high accuracy through the active power of the motor input of the surface drive screw pump well and the relevant oil well parameters which are measured on the ground, and the real-time working condition analysis, the intelligence and the informatization management level of the oil well can be improved; and the labor force, the material resources and the production managementcost are correspondingly reduced, the production efficiency is improved, and the production cost is saved.

The invention discloses a method for treating sewage from leather making, which comprises: performing the flocculating and settling treatment of the sewage; absorbing ammonia ions, proteins, amino acids, organic matters and pigment macromolecules in the sewage out by using active carbon columns in an acidic environment and realizing the treatment of the sewage; releasing the matters which are absorbed on the active carbon column from the active carbon column by using alkaline solution; and evaporating and concentrating releasing solution to obtain ammonia, proteins and amino acids. In the method, a biochemical basin with high energy consumption and operation cost is not used, sewage treatment and a production process and production operation are synchronized, production and management cost is reduced, a large amount of raw material is saved and electric cost is reduced. The sewage treatment is quick and efficient. In the swage treatment, the byproducts such as ammonia, proteins and amino acids can be extracted, economic benefit in sewage treatment is created, and the cost load of the sewage treatment is reduced.

The invention relates to an efficient grinding and polishing system and method for the outer surface of an environment-friendly workpiece. The system comprises a robot, a grinder and a polisher. The grinder and the polisher are distributed on the periphery of the robot in a surrounding manner. Proximity switches used for inducting a robot arm are mounted on the grinder and the polisher correspondingly. The proximity switches and motors of the grinder and the polisher are electrically connected to a controller. A negative-pressure dust removal device is arranged in a shell of each of the grinder and the polisher. The robot cooperates with the grinder and the polisher to complete operation of preliminary grinding, fine grinding and polishing, the manual cost is reduced, the machining efficiency is high, and the surface grinding quality is consistent; and the negative-pressure dust removal devices automatically recycle dust generated in the grinding and polishing processes, no dust fliesin the grinding and polishing processes, the environment is not polluted, the production and management cost is low, meanwhile, the production environment is improved, the health of production workersis guaranteed, and the efficient grinding and polishing system and method are especially suitable for grinding and polishing treatment of outer surfaces of small pressure castings or injection molding parts.