151results about How to "Improve the ratio accuracy" patented technology

The invention belongs to the technical field of petroleum drilling and recovery and particularly relates to an electric drive sand mixing truck. The electric drive sand mixing truck comprises a truck chassis, a control room, a transformer, an electric discharge pump, an electric suction pump, a mixing tank stirring device, a sand conveying auger, a dry feeding system, a liquid feeding system, a suction manifold and a discharge manifold. The control room comprises a sand mixing truck automatic control system and a motor drive device. The electric drive sand mixing truck has the advantages that a motor is used as power source; compared with traditional sand mixing trucks using diesel engines and torque converters as main power output, the electric drive sand mixing truck is simple in structure, novel and reasonable in design, low in cost, low in noise, low in discharge, simple to control, high in sand-liquid matching precision, and convenient to popularize and use.

The invention relates to a proportion-adjustable automobile fluid matching control system and a control method thereof. The proportion-adjustable automobile fluid matching control system comprises a purified water supply tank, a purified water supplement and matching pipeline, a basic fluid supply tank, a basic fluid supplement and matching pipeline, a fluid storage tank and a cleaning fluid filling discharge pipeline, wherein the purified water supply tank is connected to the purified water supplement and matching pipeline and can supply the purified water supplement and matching pipeline with purified water; the purified water supplement and matching pipeline is connected to the fluid storage tank and can convey the purified water to the fluid storage tank; the basic fluid supply tank is connected to the basic fluid supplement and matching pipeline and can supply the basic fluid supplement and matching pipeline with basic fluid; the basic fluid supplement and matching pipeline is connected to the fluid storage bank and can convey basic fluid to the fluid storage tank; and the fluid storage tank is connected to the cleaning fluid filling discharge pipeline and can supply the cleaning fluid filling discharge pipeline with mixed fluid of the basic fluid and the purified water. The matching accuracy is high, bubbles can not be produced in a filling process, and the problems of poor matching accuracy of the basic fluid and the purified water during practical production, high manufacturing and maintenance costs of equipment and unsatisfactory product quality during in practical operation and filling processes are solved.

The invention provides an extruder batching and flow control system and a control method thereof. The control system comprises a weighing stock bin, a plurality of weighing devices, a feeding device and a mixed material bin, wherein the weighing stock bin consists of a main material bin and an auxiliary material bin; the plurality of weighing devices are respectively arranged on the main material bin and the auxiliary material bin; the feeding device is arranged below the auxiliary material bin; the mixed material bin is arranged below the main material bin and consists of a main material channel and an auxiliary material channel which are independent from each other, and the main material channel and the auxiliary material channel are commonly connected with a feed inlet of an extruder host; the extruder host consists of an extruder screw and a velocity sensor arranged on the extruder screw; outputs of a weighing sensor and the velocity sensor are respectively connected with a controller. Step-by-step operations of the batching technology management of raw materials and the quality control of products are changed into synchronous operations, so that the technology route is greatly shortened, and the environment interference link can be reduced; the original production mode that the batching management and the yield control are respectively controlled by two independent control systems is changed, the weighing, metering, mixed batching, raw material buffering and flow control are carried out simultaneously.

The invention relates to a nitrogen/chlorine (argon/chlorine) mixing and proportioning system and an operation method thereof, aiming to overcome the defect that the manual nitrogen/chlorine (argon/chlorine) mixing and proportioning process in the prior art is completed by manual operation rather than automatic operation and is low in proportioning precision and high in operation risk. The nitrogen/chlorine (argon/chlorine) mixing and proportioning system comprises nitrogen (argon) gas running equipment, chlorine gas running equipment, a nitrogen and chlorine (argon and chlorine) mixer, a mixed gas storage tank and a PLC (programmable logic controller) control cabinet, wherein tail ends of the nitrogen (argon) gas running equipment and the chlorine gas running equipment are connected with the nitrogen and chlorine (argon and chlorine) mixer together, the nitrogen and chlorine (argon and chlorine) mixer is further connected with the mixed gas storage tank for a feeding point, a pressure sensor is arranged on the mixed gas storage tank, the PLC control cabinet is connected with all the equipment, and intelligent management and operation is realized by an internal control and management system. The nitrogen/chlorine (argon/chlorine) mixing and proportioning system and the operation method thereof have the advantages that automatic proportioning operation can be realized, operators can keep away from dangerous sources, the proportioning precision is increased, the service life of the equipment is prolonged, the service pressure of the system is stabilized, and leakage caused by long-term overhigh pressure load for the end equipment is avoided.

The invention relates to a fuzzy PID-based water and fertilizer precise ratio control system. The system includes a water supply pipeline, a fertilizer supply pipeline and a water and fertilizer mixing pipeline; the water supply pipeline and the water and fertilizer mixing pipeline are both provided with an electric valve and a flow meter; the fertilizer supply pipeline is provided with a water flow switch and a variable frequency pump; the outlet of the water supply pipeline and the outlet of the fertilizer supply pipe are both connected with the inlet of the water and fertilizer mixing pipeline; and the electric valves, the flow meters, the water flow switch and the variable frequency pump are all connected with a controller. When water and fertilizer integrated irrigation concentration-fixed fertilization is performed, the corresponding electric valves and water flow switch are opened; the variable frequency pump is adopted to absorb a fertilizer solution, and real-time concentration is obtained on the basis of the flow meters; and a fuzzy PID control method is adopted in a control process so as to constantly correct current fertilizer absorption quantity to make the difference of the current fertilizer absorption quantity and set fertilization concentration to be minimum. According to the system, the fuzzy PID control method is adopted, technologies such as a wireless sensor network technology, an embedded technology, an intelligent control technology and an electrical and electronic technology are combined, and therefore, regular and quantity-fixed irrigation of water, the fixed-concentration applying of the fertilizer solution and quantity-fixed fertilization are integrated.

The invention discloses a mass flow high density structure flow entire-tailing cemented filling technology comprising the following steps: allowing entire-tailing mortar, a cementing agent and proper amount of concentration adjusted water to enter a feed hopper through each material supply line, wherein said materials are then conveyed to a stirrer, and all ingredients of the filling material are fully evenly stirred so as to prepare the filling slurry with proper concentration and excellent fluidity, i.e., the structure flow status can be formed; allowing the filling slurry to finally enter a filling slurry discharge hopper, wherein the filling slurry can be conveyed to fill underground stope goaf through filling drill holes and an underground filling pipe network through self-flow, thus realizing large structure stope non-interrupted high density self-flow filling, wherein the sand-lime ratio can be adjusted according to filling body intensity requirements. The mass flow high density structure flow entire-tailing cemented filling technology can satisfy large structure stope, high preparation capability, high preparation precision, and high density structure flow entire-tailing colloid filling requirements, can reduce filling cost, so the goaf filling tailings final concentration can be above 70-73%; the filing body intensity structure is reasonable, thus enhancing stope back production safety, and providing large economic benefits and social benefits.

The invention relates to a switching device and an inflating device for a free piston shock tunnel compression pipe and belongs to the technical field of hypersonic speed shock tunnel engineering. According to the switching device and the inflating device, the switching device is additionally arranged in a wind tunnel structure; the problem that high-vacuum extraction of the free piston shock tunnel compression pipe is difficult to conduct is solved, and thus the gas purity is improved; and the charging ratio of helium gas to argon gas is controlled through a flow controller, the charging ratio precision is improved, and thus the requirement for multiple operation states of the free piston shock tunnel is met.

The invention provides a liquid medicine proportioning method and a liquid medicine proportioning device. The liquid medicine proportioning method comprises the following steps: injecting a first liquid medicine into a first container; injecting a second liquid medicine into the first container while injecting the first liquid medicine; acquiring a first flow value of the first liquid medicine inreal time; calculating to obtain a second flow value of the second liquid medicine according to the first flow value and a preset liquid medicine proportion value; and according to the second flow value, maintaining the flow of the second liquid medicine within a first preset numerical value range with the second flow value as the center. According to the invention, the liquid medicine proportioning precision and reliability are improved.

The invention relates to the technical field of nutrient solution preparation, particularly to a nutrient solution blending device for nutritional department. The device comprises a base plate, a first support plate and a second support plate are welded to two sides at the top of the base plate respectively, the first support plate is located on the right side of the second support plate, a mixingbarrel is supported on the right side of the second support plate through a bearing, a partition plate is welded to the inner wall of the mixing barrel, and a stirring mechanism is fixedly installedat the top of the partition plate. According to the invention, through the setting of the base plate, the first support plate, the second support plate, the mixing barrel, the partition plate, a stirring mechanism, a uniform shaking mechanism, a feeding mechanism, a mounting plate, a proportioning mechanism and a PLC control panel, the nutrient solution blending device for nutritional department has the advantages of high proportioning precision, good mixing effect and high efficiency, at the same time solves the problems of poor precision, poor mixing uniformity and low efficiency, difficultly controllable mixing time and strength, and influence on the use effect of the nutrient solution in the existing blending mode.

The invention relates to the technical field of intelligent agriculture, and discloses an intelligent crop irrigation method, device and equipment and a storage medium. The intelligent crop irrigation method comprises the following steps that first-class region environment information of a region where crops are located is obtained, region division is carried out on the region where the crops are located according to the first-class region environment information, and different crop irrigation regions are obtained; crop images of the crop irrigation regions are obtained, and image recognition is carried out on the crop images to obtain crop attribute information of crops; second-class region environment information of the crop irrigation regions is obtained, and the water demand and fertilizer demand corresponding to the crop irrigation regions are obtained according to the crop attribute information and the second-class region environment information; and a corresponding crop irrigation mode according to the water demand and the fertilizer demand is determined, and the crop irrigation regions are irrigated according to the crop irrigation mode, so that the intelligent degree and irrigation precision are improved during crop water and fertilizer irrigation, and unnecessary water and fertilizer resource waste is reduced.

The invention belongs to a device and method for making shifted gas for synthesis of ammonia synthesis poly-generation methanol. The device comprises a mechanical part and a control part. The mechanical part comprises a gasification washing tower, an outlet of the gasification washing tower is connected with an inlet of a second heat and condensate recycling unit through a pipe, the pipe between the outlet of the gasification washing tower and the second heat and condensate recycling unit is sequentially provided with a fifth tee joint, a first self-regulating valve, a first tee joint and a second tee joint, an outlet of the second heat and condensate recycling unit is connected with an inlet in the middle of a second ammonia-washing tower, and a gas phase outlet in the top of the second ammonia-washing tower is connected with an inlet in the lower portion of a shifted gas washing tower for synthesis of methanol through a pipe; the control part comprises a first online analysis and calculation display instrument, a second online analysis and calculation display instrument, a second self-regulating valve and a third self-regulating valve. The device and method have the advantages that matching efficiency and accuracy are high, a great number of regulating means are adopted, a great amount of high-quality steam is generated, and meanwhile the content of COS in the methanol removing and washing shifted gas is lowered.

The invention discloses an intelligent liquid material proportion control system, comprising a parameter collecting module used for detecting the material and environment parameters, a preset processing system for carrying out the pre-processing to the data collected by the parameter collecting module, an executing mechanism, a central processing system used for processing signals of the preset processing system and outputting execution signals to the executing mechanism, and a display setting panel used for displaying and setting the parameters of the central processing system. The control system solves the problems of proportion precision and safety and can realize the online synchronous running with parametric material operation equipment without the independent operation so as to realize the authentic man-machine interaction.

The invention discloses a technique for ternary laser gas mixture weighing preparation. The specific scheme is as follows: (1), preparing a gas cylinder of the following high-purity virgin gases: CO2, He, N2 and V=a(L); (2), calculating the quantities of gases required to be injected according to the component proportions of all the gases; (3), weighing the mass of the empty gas cylinder: m1=b(g); (4), injecting CO2 into the gas cylinder and enabling the weight of the gas cylinder m2=m1+m CO2 to stop; (5), injecting He into the gas cylinder and enabling the weight of the gas cylinder m3=m2+m He to stop; (6), injecting N2 into the gas cylinder and enabling the weight of the gas cylinder m4=m3+m N2 to stop; (7), calculating the weighing result through the difference method and obtaining the definite value; and (8), examining after mixing the prepared gas cylinder by a gas mixing device. As the definite-value weighing gas-mixing method is utilized, the proportioning precision of laser gas is high, and batch production is facilitated; as the prepared laser gas is uniformly mixed, the product prepared by the technique is insusceptible to working conditions and environments, can be used stably, and saves the equipment investment in comparison with the field mixing technique.

The invention discloses a mixing device for raw materials of a plastic product. The mixing device comprises a mixing box; a reinforcing rod is fixedly mounted at the top of the mixing box; a feeding pipeline is arranged at an inner side of the reinforcing rod; a first spring is arranged at the top of a first vibrator; an inclined plate is arranged at the top of the first spring; a weight sensor is arranged at the top of the inclined plate; a rotary shaft is arranged in an inner cavity of the mixing box. According to the mixing device for the raw materials of the plastic product, materials to be mixed can be conveyed into the feeding pipeline and the weight of the materials can be sensed through the weight sensor; after the weight reaches proper weight, the materials can be conveyed into the mixing box through pulling a pull plate; the inclined plate is continuously vibrated through the first vibrator and the materials can be rapidly conveyed into the mixing box; a double-through pipe is driven by a motor to rotate, so that the double-through pipe drives the rotary shaft to rotate and starts to stir the materials; when the materials are uniformly stirred, a mixing ratio can be strictly controlled.

The invention relates to a medicine atomization device for ear-nose-throat nursing. A baffle is arranged at the upper end of a metering bottle, a guide base is fixed to the lower end of a medicine storage tank, and the baffle is slidingly connected with the guide base; a medicine outlet is formed in the bottom of the medicine storage tank, wherein the guide base runs through the medicine outlet, an inlet is formed in the top of the metering bottle, wherein the baffle runs through the inlet, and the metering bottle is slidingly connected with the guide base, so that the medicine outlet can be communicated with the inlet, and the baffle can seal the medicine outlet; the lower end of the metering bottle is rotatably connected with a metering door for sealing the outlet through a rotation shaft, and the rotation shaft is provided with a gear; a rack which is parallel to the sliding direction of the baffle and can be meshed with the gear is arranged in a shell, a sealing door for sealing anopening in a medicine mixing bottle is rotatably connected to the medicine mixing bottle, and the medicine mixing bottle is sealed when the sealing door is not subjected to downward application force. Medicine liquid can be used immediately after preparation, waste of the prepared medicine liquid is avoided, and the situation is avoided that the time delay caused by medicine liquid preparation influences the treatment effect for a patient; through gradual addition for the metering bottle, quantitative addition and proportioning are achieved, and the proportioning precision of the medicine liquid is improved.

The invention relates to the technical field of injection molding machining, and discloses a mixing and drying integrated particle material treatment device. A mixing barrel and a plurality of storagebarrels are included, and an air inlet of the mixing barrel communicates with a hot air mechanism. A plurality of mixing packing augers stirring materials are arranged in the mixing barrel. A discharging port of each storage barrel communicates with a feeding port of the mixing barrel. The discharging port of each storage barrel is provided with a discharging amount control unit. Each dischargingamount control unit comprises an adjusting valve located at the discharging port of the corresponding storage barrel and used for adjusting the material discharging speed. According to the scheme, according to the mixing proportion of various materials, the adjusting valves are used for adjusting the material discharging speed of the corresponding storage barrel discharging ports, and the discharging speed proportion of different materials is the same with the mixing proportion; within the same time, the proportion that the materials enter the mixing barrel is the same with the mixing barrel,the burdening precision is high, manual matching is not needed, and the labor intensity of people is lowered; and the treatment device can conduct mixing and drying at the same time, and the production efficiency is improved.

The invention provides a ternary gas matching and mixing device which comprises a shell, a pressure compensation device, a fluid proportion adjusting device, a temperature compensation device and a fluid mixing device .The shell comprises an upper end cover and a lower end cover .The pressure compensation device comprises a tubular valve element, a spring A, a spring B and an upper side end cover .Top pressure regulating holes and bottom pressure regulating holes in three pressure regulating cavities are sequentially connected in series through gas channels .A flow regulating cavity is formed below an upper end cover cavity gas outlet hole, and the front portion of the bottom face of the flow regulating cavity is communicated with a gas outlet hole .The fluid proportion adjusting device comprises an adjusting lead screw, a shaft sleeve, a bearing, a bearing cover, a temperature compensation cavity, a temperature compensation cavity cover, a square guide groove and an inserting plate .The temperature compensation device comprises a coil spring fixing pin, a compensation cover, a compensation cover connector, a coil spring locating pin and a bimetallic coil spring .The fluid mixing device comprises a fluid channel, a mixing cavity and a mixed as output hole .The device can achieve pressure and temperature compensation, and can be suitable for the working conditions with large electromagnetic influence and severe environmental conditions.

The invention discloses a brick making production line for recycling concrete cleaning waste. The brick making production line comprises a gravel separator. A support frame is arranged downstream relative to the gravel separator. A filter press is arranged on the support frame. A first belt conveyor is arranged on the support frame located below the filter press. A sedimentation tank is arranged between the gravel separator and the support frame and communicates with the filter press. A stirring element is connected to the downstream of the first belt conveyor. A brick making machine is arranged downstream relative to the stirring element. A second belt conveyor is connected between the stirring element and the brick making machine. The concrete cleaning waste is effectively reused. The problems that random discharging is not allowed, and concrete cannot be introduced for use in the concrete production industry are solved. Moreover, benefits are greatly increased. Meanwhile, the brickmaking production line is simple in structure, low in investment cost, high in practicability and suitable for being popularized and used in the concrete production industry.

The invention relates to an intelligent monitoring system of a foamed cement component production line, and in particular relates to an automatic monitoring system of a foamed cement component production line based on a PLC (Programmed Logic Controller) and a man-computer interaction system. The system comprises a host computer, the PLC, the man-computer interaction system, a weighing measuring module, a conveying monitoring module, a stirring monitoring module, an AGV (Automatic Guided Vehicle) mold trolley monitoring module, a maintenance cabin temperature and humidity monitoring module, a trolley demolding monitoring module, a step type layering cutting monitoring module and a stacking manipulator monitoring module, wherein the host computer is used for controlling the conveying monitoring module, the stirring monitoring module, the step type layering cutting monitoring module and the AGV mold trolley monitoring module through the PLC, is used for acquiring information of the weighing measuring monitoring module and the maintenance cabin temperature and humidity monitoring module, and is used for uploading the information to the host computer; and the man-computer interaction system is capable of displaying the operation situation, the fault state and the acquired information of the production line at real time, and giving an alarm in time. The system can be used for carrying out full-automatic production monitoring, has the characteristics of high proportioning precision, accurate control, high reliability, good maintenance property and the like, is unique and innovative, and can improve the production efficiency remarkably.

The present invention relates to a method and a device for improving the plastic additive proportion precision; constant volume gages are taken as the chief gage for proportioning mixture material and volumetric meters are taken as the metering gage of additive; the side wall of the volumetric meter is equipped with an additive special feeding port which is equipped with the volumetric gage and the side wall of the mixer is equipped with a return feeding port which is equipped with the constant volume gage; additives participating in proportioning are delivered to the chief gage after being measured by the volumetric gage and then the chief gage is filled with the main material; the reclaimed materials which do not participate in proportioning is directly delivered to the mixer cavity to mix with the main materials containing additives; materials are put into use after the materials are evenly mixed. The part near top and bottom of every constant volume gage is designed of the inclined structure which is convenient for filling and discharging and the present invention can ensure the accurate addition and repeated proportioning each time; the present invention boasts of high-precision proportion and even mixing which is beneficial to ensuring the quality of processed products and promoting the product qualification rate and total productivity.

The invention relates to a fastener manufacturing method monitored by a computer during the whole process. The manufacturing steps comprise: preparing a material and sampling, and increasing an auxiliary material; smelting the raw materials; carrying out slagging and electric furnace bottom blowing; refining outside the furnace; casting, and carrying out a heat treatment; carrying out an annealing treatment; carrying out a hot stamping treatment; removing degrease and water, and drying; carrying out a surface treatment; and carrying out thermal insulation drying. According to the present invention, the computer is used to monitor the whole manufacturing process of the whole fastener, such that the fastener with characteristics of extremely high matching precision, production from the alloy steel, and extremely high performance can be obtained, the unnecessary testing procedures are removed, and the part of the programs are improved so as to simplify the production process and improve the production efficiency.

The invention discloses a multi-component proportional paint supply system and a painting robot. The multi-component proportional paint supply system comprises a control unit and also comprises at least two gear pumps corresponding to different coating components and a mixing device; every gear pump is communicated with the mixing device and is connected with a driving device for flow control; allthe driving devices are connected with the control unit; the control unit controls the different driving devices according to paint component ratios to drive the corresponding gear pumps so that painting components determined according to the ratios are injected into the mixing device; the mixing device mixes well the different paint components injected. The gear pumps of the multi-component proportional paint supply system are used to actively pump the paint components so that the ratio precision is high and stable, and are also sued for controlling painting flow so that system cost is reduced.

The invention discloses a specific-proportion bi-component fluid output device. The specific-proportion bi-component fluid output device comprises a power device, a driving proportion adjusting mechanism and high pressure cylinder components. At least three sorts of the high pressure cylinder components are arranged. The driving proportion adjusting mechanism is provided with two power output ends, and each power output end is provided with the corresponding high pressure cylinder component. The driving proportion adjusting mechanism is used for conducting equilibrium partitioning on an input power of the power device and outputting the power, and the differences of areas among the multiple sorts of the high pressure cylinder components are arranged in multiple sorts of proportions. Six sorts of different proportions of 1 to 1, 1.5 to 1, 2 to 1, 2.5 to 1, 3 to 1 and 4 to 1 of bi-component fluid definite-proportion conveying can be achieved by setting the proportions of different values of cross sectional areas between cylinder body inner cavities and pistons among the various high pressure cylinders, so that the higher and higher technical requirement by users is met, and the matching precision of the spraying is improved. In addition, the structure is simple; the cost is low; the convenience and practicability are achieved; the popularization is easy.