11results about How to "Maintain productivity" patented technology

The invention discloses a purification method and a purification device for crystallized magnesium, and relates to the field of magnesium metal smelting. The method comprises the following steps: under the protection of an inert atmosphere, firstly carrying out pressure-applying melting treatment on a magnesium material to be smelted, and then carrying out pressure-applying filtering treatment on a product obtained after the melting treatment, so as to complete the flux-free smelting process of the magnesium material. And meanwhile, the metal magnesium liquid and most of the oxide shells are separated by utilizing the liquidity difference between the liquid metal magnesium and the solid oxide shells. Compared with a conventional smelting process without pressure application, the method has the advantages that the melting rate of the crystallized magnesium can be remarkably increased, most of oxide impurities are removed, a series of pollution problems caused by flux use are solved from the source, and low-cost, high-efficiency and high-quality smelting of the crystallized magnesium is realized.

The invention discloses solar battery piece production equipment, and relates to the technical field of battery piece production, the solar battery piece production equipment comprises a laser slicer of a rectangular frame structure, a motion controller is arranged above the laser slicer, the rear side of the motion controller is fixedly connected with a moving belt, and the moving belt is fixedly connected with the laser slicer. A sliding rail is arranged on the side, close to the motion controller, of the moving belt, the motion controller is slidably connected to the interior of the sliding rail, a laser head is fixedly connected to the bottom end of the motion controller, and multi-range rubbing mechanisms are arranged on the two transverse sides of the upper surface of the laser slicing machine. Knocking mechanisms are arranged on the two longitudinal sides of the upper surface of the laser slicing machine, polishing mechanisms are arranged on the inner walls of the two sides, close to the motion controller, of the laser slicing machine, and a discharging mechanism is arranged on the upper surface of the side, away from the sliding rail, of the laser slicing machine. The multi-range rubbing mechanism can make more comprehensive contact with the surface of the battery piece, and tiny silicon dust is effectively removed.

The utility model belongs to the technical field of workover rigs, and particularly relates to a derrick for a full-hydraulic workover rig, which comprises a workover rig derrick, four grooves are formed in the side wall of the workover rig derrick, hydraulic supporting legs are connected to the inner walls of the four grooves in a clamping manner, connecting plates are mounted at the output ends of the four hydraulic supporting legs, and the connecting plates are connected with the hydraulic supporting legs in a clamping manner. A telescopic assembly is arranged between every two adjacent connecting plates, each telescopic assembly comprises a main rod, a first sliding rod, a second sliding rod and a third sliding rod, the first sliding rods are slidably connected to the inner walls of the corresponding main rods, and the second sliding rods are slidably connected to the inner walls of the corresponding first sliding rods; the four hydraulic supporting legs are connected together through the four telescopic assemblies to form an overall structure, the synergistic effect among the four hydraulic supporting legs is enhanced, the whole supporting system is firmer, external force interference from different directions can be better resisted, and therefore the overall stability of the derrick can be improved; and serious inclination of the derrick is reduced.

The invention relates to the technical field of selenium-enriched beer fermentation fault prediction, and provides a selenium-enriched beer fermentation tank fermentation multi-stage fault detection device and a fault prediction method. The fermentation multi-stage fault detection device for the selenium-enriched beer fermentation tank comprises the vertically-arranged selenium-enriched beer fermentation tank, the selenium-enriched beer fermentation tank comprises a main tank body on the upper portion and an emergency tank body on the lower portion, and a connecting pipeline is arranged between the main tank body and the emergency tank body; a first sensor, a second sensor and a stirring linkage mechanism are arranged at the top of the main tank body, the stirring linkage mechanism penetrates through the main tank body and the emergency tank body from top to bottom, and the stirring linkage mechanism comprises an impeller arranged on a stirring main shaft and a stirring frame matched with the stirring main shaft. Through the selenium-rich beer fermentation tank and the optimized tank body structure, the stirring main shaft and the stirring linkage mechanism are combined, it is ensured that fermentation liquid is fully stirred and mixed in the tank body, and fault detection and prediction in the selenium-rich beer fermentation process are achieved.

The invention provides a condensate water discharging device, an air conditioning system and an electrical system. The condensate water discharging device comprises a flow guide structure, a water pan structure and a water discharging structure. The water pan structure is arranged below the flow guide structure; a flow guide cavity is formed in the flow guide structure, and an inlet of the flow guide cavity communicates with the air outlet. A circulation opening communicated with the interior of the electrical equipment is formed between the outer wall of the flow guide structure and the water pan structure, the outer wall, facing electronic elements in the electrical equipment, of the flow guide cavity is of a closed structure, and at least one part, not facing the electronic elements in the electrical equipment, of the outer wall of the flow guide cavity is provided with a through hole. Cold air blown out of the air outlet sequentially passes through the flow guide cavity, the through hole and the circulation opening to be blown into the electrical equipment. According to the electric cabinet air conditioner, it is ensured that cold air smoothly enters the electrical equipment, the cold air blown out of the electric cabinet air conditioner is prevented from directly blowing electronic elements in the electrical equipment, and the adverse effect of water vapor carried in the cold air on the performance of the electronic elements is avoided.

The present invention discloses the application of GmACA24 promoter in improving the stress tolerance of plants, the application of reagents for regulating the expression of GmACA24 promoter in hosts in regulating the stress resistance of plants, the application of reagents for identifying the expression of GmACA24 promoter in hosts in identifying the stress resistance of plants, a method for improving the stress tolerance of plants by GmACA24 promoter, an expression vector for expressing GmACA24 promoter, and a host fungus for expressing the expression vector. The GmACA24 promoter, especially haplotype 1 (Hap1, Chr19.39775478: A), can improve the tolerance of plants in high temperature, high salinity and drought environments, and has positive significance and important influence on the cultivation of crops resistant to high temperature, salinity and drought.

The present invention discloses a (Z)-nitrogen heterocyclic alkenyl chloride compound and a preparation method and application thereof. The structural formula of the compound is any one of #imgabs0#; wherein R 1 is at least one of a hydrogen atom, an alkyl substituent and an aryl substituent; R 2 is at least one of a hydrogen atom, an alkyl substituent, an aryl substituent, an allyl group, and a propargyl group; n1 is an integer of 1 to 5, and n2 is an integer of 1 to 5. The preparation method of the (Z)-nitrogen heterocyclic alkenyl chloride compound of the present invention adopts a simple non-toxic metal iron salt catalyst and a simple Cl ‑ Reagents, water or heavy water are green, efficient, and easy to mass produce. The obtained compound is a product with a single Z-form structure and can be used for the development of heterocyclic drug molecules.

The sizing cooling bed feeding limit grating energy saving system comprises a grating, a PLC, a compressed air pipe, a control cable and an electromagnetic valve, the compressed air pipe is installed on a compressed air pipeline and used for spraying compressed air to refrigerate the grating, and the electromagnetic valve is installed on the compressed air pipeline and used for controlling opening and closing of the compressed air pipe. The electromagnetic valve is connected with a PLC through a control cable, the control cable is used for transmitting control signals, the PLC is used for controlling the electromagnetic valve to be switched on and switched off, the high-temperature sensor and the compressed air pipe are installed on the two sides of the grating respectively, and the high-temperature sensor and the compressed air pipe are oppositely arranged. Real-time temperature detection is carried out through the high-temperature temperature sensor, then automatic control or manual control is carried out on the PLC, the heat dissipation problem of the grating can be solved, meanwhile, stopping is carried out when heat dissipation of the grating is not needed, and the production quality and the production efficiency can be kept.

The utility model discloses a corn steep liquor supplementing tank which comprises a tank body, the tank body comprises a tank top and a tank body, a machine base is arranged in the center of the tank top, a stirring driving device is installed on the machine base, the stirring driving device is connected with a stirring shaft extending into the tank body through a coupler, and a first stirrer and a second stirrer are arranged in the middle and at the lower end of the stirring shaft respectively. A feeding hole is formed in one side of the tank top, a hoisting device is annularly arranged on the periphery of the tank top, a flange plate and a sealing gasket are arranged on the butt joint surface of the tank body and the tank top, a jacket is arranged outside the tank body, a steam inlet is formed in the top side of the jacket, a condensed water outlet is formed in the bottom of the jacket, and a discharging hole is formed in the bottom of the tank body. The corn steep liquor supplementing tank can effectively reduce scaling and equipment cleaning frequency, has the advantages of being convenient to clean, good in cleaning effect and the like, and can effectively guarantee normal operation of equipment and maintain production efficiency and product quality.

The utility model relates to a nail gun with resistance absorption, including gun body, drive arrangement, speed reducer, swing arm, push rod and clamping part, drive arrangement, speed reducer and clamping part set up at gun body, the push rod is in the sliding mode and is arranged in the gun body, the push rod's front end is connected clamping part, the push rod is provided with guide block, the guide block has opened guide groove, drive arrangement drives swing arm rotation after the deceleration of speed reducer, makes the sliding portion in the guide groove and pushes the push rod reciprocating sliding, to make the push rod drive clamping part open or clamping. When clamping part encounters greater resistance (such as object too big or foreign matter jam) in the clamping process, the sliding block in swing arm can compress sliding under the action of second spring, thereby absorbing part resistance, avoid motor because of overload leads to blocked rotation, heating even burnout, significantly improve system reliability and service life.

The invention relates to the technical field of flame-retardant modification of composite materials, and discloses a flame-retardant polyurethane composite material with a low candlewick effect and a preparation method of the flame-retardant polyurethane composite material with the low candlewick effect. The resin component is prepared from the following raw materials in parts by mass: 51-54 parts of isocyanate, 40-44 parts of polyol, 2 parts of a release agent and 0-7 parts of a flame retardant; the flame-retardant modified glass fiber is obtained by carrying out amination modification and flame-retardant modification on glass fiber. The preparation method of the flame-retardant polyurethane composite material comprises the following steps: 1, treating glass fibers: carrying out amination modification and flame-retardant modification on the glass fibers to obtain flame-retardant modified glass fibers; step 2, glue injection: injecting resin into the mold through a glue injection machine, and mixing the resin with the flame-retardant modified glass fiber according to a mass ratio of 7.5-8: 2-2.5; and 3, forming, wherein curing forming is conducted through a forming mold. The flame retardance, the production efficiency and the mechanical property of the material can be considered.