11results about How to "Accurate automatic adjustment" patented technology

The invention relates to a method for separating and purifying waste boric acid liquid in formed foil waste liquid and concentrating boric acid, which comprises the following steps: adding ammonia water into the boric acid waste liquid to promote the waste liquid to separate out aluminum hydroxide precipitate, and separating the aluminum hydroxide precipitate from the waste liquid to obtain primary separated liquid; carrying out ultrafiltration on the primary separated liquid, adding boric acid or citric acid, and promoting ammonium pentaborate in the primary separated liquid to be hydrolyzed into boric acid, so as to obtain acidizing fluid; freezing and crystallizing the acidizing fluid until solid boric acid is separated out; and carrying out solid-liquid separation on the precipitated boric acid solid mixed solution, and carrying out vacuum drying or normal-pressure drying on the boric acid solid for recycling. According to the treatment method and system, aluminum and ammonium radicals can be efficiently separated from the aging waste liquid, ammonium pentaborate is converted into boric acid to be efficiently recycled, the environment can be better protected, the purity of the recycled boric acid product and recycling of the recycled boric acid product in the formed foil industry are guaranteed, and the operation cost of an enterprise is reduced.

This invention provides a regulating device for a butterfly valve orifice plate for mixed gas in a coke oven basement, comprising a valve body, a continuous regulating mechanism for the butterfly valve, and a fixed throttling mechanism for the orifice plate. The inner cavity of the valve body serves as a gas flow channel, and the continuous regulating mechanism for the butterfly valve is installed within the channel perpendicular to the gas delivery direction. The continuous regulating mechanism for the butterfly valve is a structure that continuously and steplessly adjusts the opening and closing of the butterfly plate through a pneumatic actuator to achieve different gas flow rates. The fixed throttling mechanism for the orifice plate is an integrated throttling structure arranged within the channel along the gas delivery direction, and is sealed by a self-tightening lever clamping mechanism. The invention also provides a method for controlling gas flow using this device, which solves the problems of coarse regulation, the need to replace the orifice plate, and operational hazards associated with traditional orifice plate valves. It achieves continuous and precise regulation of gas flow without the need to replace the orifice plate, significantly improving the coke oven heating control level and system safety. It is particularly suitable for coke oven basement gas pipeline systems where space is limited and safety requirements are extremely high.

The utility model provides a welding protection device which comprises a water tank and a mounting table. The water tank defines a water containing space with an open upper side. The mounting table is arranged in the water tank and used for mounting a to-be-welded part, so that the to-be-welded part is soaked in water of the water tank to be welded, and cooling during welding is achieved. The mounting table is further configured to be mounted in the water tank in an up-down moving mode so that the height position of the mounting table can be adjusted, and then the depth of the to-be-welded part immersed in water is changed. According to the welding protection device, accurate adjustment of relevant protection parameters of the welding protection device is achieved, and targeted adjustment can be conducted on different parts to be welded.

The utility model belongs to the technical field of reinforcing steel bar processing, particularly relates to a reinforcing steel bar quick clamping and threading device, and aims to solve the problems of low efficiency, inaccurate alignment (easy thread processing deviation), high labor intensity of operators, low production efficiency and the like caused by the fact that the position and height of a threading tool (such as a sleeve) in a traditional threading device need to be manually adjusted. In order to solve the problems of long processing interruption time and low efficiency due to the fact that a traditional reinforcing steel bar fixing device is generally of a single-groove or static design and needs to be shut down, manually unloaded and re-clamped when reinforcing steel bars are replaced, the following scheme is provided: the reinforcing steel bar fixing device comprises a working plate, and four supporting legs are fixedly mounted at the bottom of the working plate; the wire feeding mechanism is slidably mounted at the top of the working plate; the reinforcing steel bar fixing mechanism is mounted at the top of the working plate and is matched with the wire feeding mechanism; and a limiting strip is fixedly mounted on the side of the bevel edge plate. The utility model solves the problems of many manual operations, low efficiency, unstable quality and the like in the traditional steel bar threading device.

The utility model discloses a traction crawl device for X-ray flaw detector, including shell, adjustable stabilizing mechanism and drive mechanism, the middle part of shell's lower end is fixedly connected with the traction ring, adjustable stabilizing mechanism is provided the upper end of shell's outer surface, drive mechanism is provided the lower end of shell's interior, adjustable stabilizing mechanism and drive mechanism match installation, and the drive mechanism is provided with the traction ring. The traction crawler for the X-ray flaw detector further comprises a battery and a single-chip microcomputer, the battery is fixedly connected to the middle of the front side wall of the shell, the single-chip microcomputer is fixedly connected to the middle of the right side of the shell, and the input end of the single-chip microcomputer is electrically connected with the output end of the battery. The expansion angle can be quickly, accurately and automatically adjusted according to the diameter of the pipeline, so that the traction crawler is always in contact with the inner wall of the pipeline without influencing the advancing efficiency, and the detection accuracy and the equipment safety are ensured.

This utility model relates to the field of air conditioning unit technology, and in particular to a heat recovery system for air conditioning units and an air conditioning fresh air handling unit. The heat recovery system consists of a first heat recovery coil and a second heat recovery coil installed on both sides of the original air conditioning unit's surface cooler, forming a closed-loop system via circulation pipes and a power pump station. The first heat recovery coil efficiently recovers heat from the fresh air and reduces the load on the surface cooler, transferring the heat to the second heat recovery coil via the circulation pipes. The second heat recovery coil then uses the recovered heat from the fresh air to reheat the low-temperature air after dehumidification by the surface cooler, reducing the consumption of reheat steam and dehumidification chilled water. This structure fundamentally solves the energy offsetting problem caused by the "cooling and dehumidifying before heating" process in traditional air conditioning units, significantly reducing the unit's reheat energy consumption and the surface cooler's cooling load, achieving energy saving and emission reduction. Furthermore, an air conditioning fresh air handling unit with the aforementioned heat recovery system is also provided.

The application provides a power-oriented electric propulsion gas supply self-learning closed-loop control system and method, which is composed of a storage and supply unit, a power processing unit, a control unit and an electric thruster; the working current of the electric thruster is monitored, if the current is lower than the lower limit, the valve is opened to supplement the gas for a certain time length, the current value of the electric thruster working maximum 3s sliding average within a certain time length is monitored after the gas supplement is completed, and the gas supplement time length is adjusted according to the maximum value with a certain step distance, and the step distance is corrected according to the number of adjustments. The application solves the working condition drift problem of the electric thruster caused by the state change of the spacecraft or the erosion of the thruster itself in the prior art by using the multi-stage self-learning adjustment mode, under the premise of limited on-orbit computing resources, and collects the working parameters for data accumulation and open-loop control of the fault mode.

The present invention relates to a hydraulic automatic single-plate floating gate and an application method thereof, wherein the hydraulic automatic single-plate floating gate comprises a single-plate gate located between two adjacent gate piers and having a width adapted to the spacing between the two adjacent gate piers, a track groove opened on the two gate piers and located on the downstream side of the single-plate gate, and a support frame connected to the single-plate gate and moving along the track groove, wherein the track groove is inclined upward, and one end of the track groove close to the single-plate gate is lower than the other end. The present invention automatically controls the opening size according to the upstream water level, has a simple structure, does not require the configuration of opening and closing facilities, does not require special personnel to operate and control, and is automatically regulated by the upstream water situation. Compared with general gates, it has the characteristics of saving manpower and material resources, and is easy to use. The gate realizes unattended operation; it can automatically and accurately adjust the gate opening in a timely manner. As the upstream water level rises and falls, the gate can be gradually, automatically, accurately, and instantly opened and closed to complete the water discharge and water storage process, so that the downstream flow and the water flow in front of the gate maintain a dynamic balance.

The invention discloses a portable EEG-TMS treatment cap and a control system thereof.The treatment cap comprises a wearable assembly, the wearable assembly comprises a cap body, a head sleeve ring and a treatment module, and the head sleeve ring and the treatment module are both arranged on the cap body; the control system comprises a controller, the controller is in data connection with the wearable assembly, and a man-machine interaction module and a data processing module are arranged in the controller; the EEG sensor is used for collecting EEG data of a patient in real time, the EEG-biomarker cerebral apoplexy intelligent diagnosis model and the feedback enhancement decision model are used for analyzing and processing the data, and the brain function state of the cerebral apoplexy patient is evaluated, so that parameters of the TMS are accurately and automatically adjusted, a personalized treatment scheme is provided for the patient, and the brain function state of the cerebral apoplexy patient is evaluated. Meanwhile, by further evaluating the EEG data after magnetic therapy, a magnetic therapy scheme is updated, and therefore it is guaranteed that the magnetic therapy scheme can be adjusted in time according to the physical condition of the patient.

The tension control device for textile processing comprises a base, an adjusting mechanism and a detection mechanism, vertical plates are arranged on the left side and the right side of the upper end of the base, material rollers are rotationally connected to the rear sides of the upper ends of the opposite inner side faces of the vertical plates, and guide rollers are rotationally connected to the front sides of the upper ends of the opposite inner side faces of the vertical plates; the adjusting mechanism comprises a first sliding groove, a first sliding block, a second sliding groove, an adjusting column and a tension spring, the first sliding groove is formed in the upper end of the interior of the vertical plate, the first sliding block is slidably connected to the interior of the first sliding groove, the second sliding groove is formed in the middle of the interior of the vertical plate, and the adjusting column is slidably connected to the interior of the second sliding groove; the detection mechanisms are arranged on the rear sides of the lower ends of the opposite inner side faces of the vertical plates correspondingly, the tension control device for textile processing can automatically detect the tension of textiles, and the tension of the textiles can be rapidly, accurately and automatically adjusted.

The invention discloses a method for separating, purifying and concentrating ammonium citrate in an ammonium citrate bath solution, which comprises the following steps: separating and purifying the ammonium citrate bath solution by using a nanofiltration membrane, and concentrating ammonium citrate by using a high-pressure reverse osmosis membrane at the same time; ammonium citrate is subjected to nanofiltration dialysis, a small amount of ammonium citrate thin liquid and purified ammonium citrate concentrated liquid are obtained at the same time, reverse osmosis membrane filtrate is recycled in the process, and the Cl <-> formed foil closed-loop clean production technology is formed. According to the invention, chlorine can be well removed and ammonium citrate can be concentrated by using a membrane technology. The scale of the membrane treatment system in the process is customized according to a production line, the membrane treatment system can be matched with industrial production to be continuously carried out, the system process is simple, the treatment efficiency is high, the utilization rate of water resources can be increased, the water resources are purified and recycled, zero emission of a project is achieved, and good economic benefits are comprehensively generated.