467results about How to "Reduce quality" patented technology

The invention discloses a device and a method for preparing a single-walled carbon nanotube by a two-step method. The device comprises a carbon nanotube growth chamber, a product collection module, a catalyst supply module, a carbon source supply module and an etching agent supply module, the carbon source supply module is used for introducing a first airflow containing a carbon source in a first direction, the etching agent supply module is used for introducing a second airflow containing an etching agent in a second direction, and the first direction is opposite to the second direction so that the airflow intersects to form a vortex; the catalyst supply module introduces catalyst particles in a third direction, and the third direction points to the position near the vortex; and the product collecting module is arranged above the vortex and is used for collecting the formed single-walled carbon tubes. Controllable preparation of catalyst nanoparticles and ordered separation of carbon nanotube growth steps are realized, the influence of hybrid variables on the reaction is reduced, the vortex is formed by opposite intersection of airflow, and the problem of local deposition and blockage of tangential laminar flow is avoided by the vortex, so that the influence on the quality and continuous growth of the carbon nanotubes is avoided.

The invention belongs to the technical field of additive manufacturing, and particularly relates to additive manufacturing forming equipment which comprises a machine body, a powder laying unit, a laser unit and a forming unit. The discharging assembly is mounted in the second cavity; the stirring assembly is mounted in the second cavity; the material receiving plate is mounted in the machine body; the powder spreading platform is fixedly mounted in the machine body; the side plate is fixedly installed in the machine body, and a trowelling assembly is installed on the side plate in a sliding mode; by arranging the stirring assembly, powder discharged from the storage cavity in the discharging station is dispersed, and even if the communication position of the storage cavity in the discharging station and the storage cavity in the discharging station is blocked, the powder can still be uniformly dispersed in the storage cavity in the discharging station; therefore, after falling onto the material receiving plate under the action of gravity, the powder can be uniformly distributed on the material receiving plate in the direction of the discharge port.

The present invention relates to the field of grain transport technology, and in particular to an agricultural grain transport device, comprising a base, a shell fixedly installed on the top of the base, a feed hopper and a discharge hopper respectively arranged at both ends of the shell, a cylindrical screen arranged inside the shell, a refrigeration mechanism arranged inside the shell, a mounting plate fixedly installed on the side of the discharge hopper away from the shell, a motor fixedly installed on the top of the mounting plate, a rotating shaft fixedly connected to the output end of the motor, and a spiral hollow disk and a solid disk fixedly connected to the outer wall of the rotating shaft. The advantages are: the inside of the shell maintains a low temperature, the low temperature helps to increase the hardness difference between grain and impurities, improve the efficiency of impurity screening, reduce the stickiness between grains, ensure the smooth flow of grain, the screen effectively screens out impurities in the grain, improves the purity of the grain, pushes the grain in layers, prevents excessive accumulation of grain, and reduces the damage of grain due to friction and extrusion.

The invention discloses a quick-freezing cabinet monitoring and adjusting system for food quick-freezing, which belongs to the technical field of quick-freezing cabinet adjustment and comprises an information acquisition module, an information analysis module and a quick-freezing mode adjusting module. Wherein the information acquisition module is used for acquiring related data of food placed in a quick-freezing cabinet and operation data of the quick-freezing cabinet to obtain an influence parameter data set; the information analysis module is used for calculating a comprehensive state value in the quick-freezing cabinet according to the influence parameter data set; and the quick-freezing mode adjusting module is used for selecting a quick-freezing mode according to the comprehensive state value and dynamically adjusting working parameters of the quick-freezing cabinet. Through intelligent information acquisition, analysis and adjustment functions, real-time monitoring and dynamic adjustment of the state of food in the quick-freezing cabinet are realized, and the safety and quality of the food are effectively guaranteed.

The invention relates to the technical field of activated carbon processing, and discloses catalyst activated carbon activation processing equipment and a using method thereof.The catalyst activated carbon activation processing equipment comprises a main body, a plurality of heating rods are fixedly connected to the interior of the main body, an inner cylinder is fixedly connected to the interior of the main body, a catalyst storage box is fixedly connected to the top of the inner cylinder, and a feeding port is formed in the top of the inner cylinder; and a discharging pipe is arranged at the bottom of the inner cylinder. The hollow gear shaft drives mixed materials to turn over and stir during rotation, and the situation of local accumulation among the materials is broken through in combination with vertical shaking of the two ends of the arc-shaped elastic plate, so that the materials are more fully mixed in the inner cylinder, and the material mixing uniformity is greatly improved; and the mixed material and the activation medium are in better contact, so that the mixing uniformity is improved.

The invention relates to the technical field of plastic crushing, in particular to a plastic product recovery device which comprises a feeding bin and a crushing bin and further comprises multiple sets of clamping plates located in the feeding bin. The crushing unit is arranged in the crushing bin and is used for crushing plastic bottle bodies and plastic bottle caps, the bidirectional driving unit is arranged in the feeding bin, the clamping plates are arranged on the bidirectional driving unit, and the bidirectional driving unit is used for driving the two clamping plates to clamp the plastic bottles; according to the plastic product recovery device, the plastic bottles are usually made of different plastic materials, the physical and chemical properties of the materials are different, the quality of regenerated plastic can be reduced through mixed recovery, and the quality of the regenerated plastic can be improved by separating bottle bodies from bottle caps. And it can be ensured that different types of plastics are more effectively recycled and treated, and therefore the purity of the recycled plastics is improved.

The invention belongs to the technical field of biological prevention and control of postharvest diseases, and particularly relates to biocontrol serratia rubra and application thereof to postharvest disease control, storage and fresh keeping of pear fruits. The method comprises the following steps: activating and culturing serratia rubra, centrifuging after culturing to obtain thalli, and re-suspending by using sterile normal saline to obtain a bacterial suspension; the method comprises the following steps: punching holes in the surfaces of pears, injecting the holes, and then injecting penicillium expansum spore suspension with the same volume, thereby realizing effective control on penicilliosis caused by penicillium expansum; or uniformly spraying the serratia rubra suspension on the surfaces of the pears, and naturally airing, so as to realize the purposes of disease control, storage and fresh-keeping after the pears are picked. According to the method, the occurrence of penicilliosis after the pears are picked can be remarkably reduced, the natural rotting rate after the pears are picked is reduced, the method is safe and environmentally friendly, no remarkable adverse effect is generated on main quality indexes of the picked pears, the storage quality of the pears can be kept, a remarkable technical effect is achieved, and the application prospect is wide.

The invention discloses a composite degradable modified atmosphere preservative film, preparation and application thereof and a cherry preservation method. The preparation method comprises the following steps: mixing copolyester PBTF, poly (butylene adipate-succinate)-terephthalate and a solvent to obtain a film casting solution, pouring the film, and drying to obtain the composite degradable modified atmosphere preservative film. The preservative film has the characteristics of high CO2 permeability and low O2 permeability, and can inhibit respiration of fruits and vegetables and slow down metabolism of the fruits and vegetables, so that the storage time is prolonged, the composite degradable controlled atmosphere preservative film is heat-sealed into a bag and is used for preserving Dalian cherries, and an excellent preservation effect can be achieved.

The utility model relates to the technical field of low-temperature extraction, and discloses plant low-temperature concentration extraction equipment which comprises an extraction tank and a filter box, a motor is fixedly connected to the top end of the extraction tank, a stirring rod is fixedly connected to the driving end of the motor, and a liquid inlet pipe is fixedly connected to the right side of the top end of the extraction tank; a feeding pipe is fixedly connected to the left side of the top end of the extraction tank, an annular cooling pipe is fixedly connected to the inner wall of the extraction tank, a discharging pipe is fixedly connected to the bottom end of the extraction tank, and a first electromagnetic valve is fixedly connected to the outer wall of the discharging pipe. According to the device disclosed by the utility model, extract liquor is filtered through the filter plate, so that the influence of residues and impurities on the extraction purity is prevented, after filtration is completed, the filter plate is driven to move leftwards, so that the filter plate is conveniently taken out for cleaning, and plant residues and impurities in the extracted extract liquor can be filtered; and residues and impurities are prevented from influencing the extraction purity and reducing the extraction quality.

The present invention relates to a glass diaphragm comprising: a glass plate structure; a mounting part which is fixed to the glass plate forming body and on which a vibrator that vibrates the glass plate forming body is mounted; and an adhesive layer in contact with the glass plate structure and the mounting portion, the adhesive layer having a first adhesive layer and a second adhesive layer made of different materials, the shear storage elastic modulus of the first adhesive layer at-40 DEG C being 1.0 * 107 Pa or less, and the shear peel strength of the second adhesive layer at 80 DEG C being 0.2 MPa or more.

The invention relates to the technical field of plant growth regulation, in particular to a pesticide preparation and method for promoting yield increase and branching of medicago sativa L. The pesticide preparation is prepared from, by weight, 1-4 parts of benayl aminopurine, 0.1 part of compound sodium nitrophenolate, 1-4 parts of brassinolide, 1-3 parts of triacontanol and 1-4 parts of uniconazole. When the medicago sativa grows to a seedling stage after being sown, the pesticide preparation is applied after the medicago sativa is cut on the ground, branching of the medicago sativa can be effectively promoted, the yield of the medicago sativa is increased, and the quality of the medicago sativa cannot be reduced.

The invention discloses organic silicon resin production equipment, and relates to the technical field of production. The device comprises a device body, a driving assembly is arranged at the top of the device body, a supporting assembly is arranged at the bottom of the device body, an electric telescopic rotating column is rotationally installed at the top of the inner wall of the device body, and an arc-shaped groove is formed in the outer wall of the electric telescopic rotating column; a filter plate is fixedly mounted on the outer wall of the telescopic end of the electric telescopic rotary column, and an anti-sticking device for avoiding non-uniform stirring of raw materials is arranged on the periphery of the electric telescopic rotary column. Through cooperation of an electric telescopic rotating column, a stirring block and a filter plate, the stirring block dynamically stirs raw materials, and the stirring effect is improved by turning over the center of the raw materials through the cambered surface treatment of the stirring block; and meanwhile, the filter plate moves dynamically to remove impurities in the raw materials, so that the removal effect on small-particle impurities is improved, and the purity and quality of the materials are guaranteed.

The present invention relates to the technical field of reaction kettles, particularly to a glyphosate isopropylamine salt aqueous solution production reaction kettle, which comprises a stirring tank, the top end of the stirring tank is provided with a support frame, the inner wall of the stirring tank is provided with a stirring cooling mechanism, and the outer wall of the support frame is provided with a liquid storage tank. Through cooperation of a second stirring piece, a storage shell, a communicating pipe, a first pull rod and a first hydraulic plug, in the rotary stirring process of the second stirring piece, cooling kerosene directly dissipates heat of reactants, and the situation that the temperature of the reactants exceeds 80 DEG C, and consequently the quality of the reactants is reduced is avoided; in the prior art, the temperature of the stirring tank is reduced firstly and then the temperature of the reactant is reduced, so that the steps of reducing the temperature of the stirring tank, reducing the cooling time and avoiding quality reduction caused by overlong heat dissipation time of the reactant are omitted, meanwhile, when cooling is not needed, cooling kerosene enters the liquid storage tank through the storage shell and air pressure, and the cooling effect is improved. And the cooling effect of the device is improved, and the cooling time is shortened.

The invention discloses a single-inductor multi-input single-output DC-DC system for lithium battery EIS detection and a control method of the single-inductor multi-input single-output DC-DC system, through on-off control cooperation of (2N + 2) MOS transistors of an A level and a B level in the DC-DC system and setting of dead zone time, four modes of N battery units do not interfere with one another, so that repeated charging and discharging control is performed on a single inductor, and the reliability of the system is improved. And meanwhile, extra duty ratio disturbance signals are input at the B stage of the SI-MISO circuit through two NMOS switches S1 and Su, so that AC impedance values of a plurality of to-be-detected lithium batteries under different frequencies can be simultaneously and quickly obtained finally, the hardware cost is reduced, and the impedance of the lithium ion batteries can be detected while the impedance of the lithium ion batteries is detected. And the reduction of the electric energy quality caused by adding a disturbance signal is avoided, so that the normal working output of the circuit is not influenced during the impedance test of the lithium ion battery.

The utility model discloses a tea cake forming device for tea production, which comprises a fixed seat, the fixed seat is mounted on external equipment, an adjusting mechanism is arranged on the fixed seat, and the adjusting mechanism comprises a telescopic mechanism, a push rod, a threaded pipe, a hexagonal sleeve, a fixed sleeve, a pushing mechanism, a limiting rod, a pressure plate, a sliding block and a fitting ring. The telescopic mechanism is connected to the push rod and the fixing base in a matched mode, the threaded pipe is connected to the push rod in a threaded mode, and the adjusting mechanism can accurately control the pressing strength so as to adapt to different types of tea leaves and meet the production requirements. A user is allowed to flexibly adjust the pressure according to the characteristics of tea leaves and the required forming standard, the fixing sleeve is connected to the hexagonal sleeve through threads, the push rod and the telescopic mechanism can accurately adjust the position of the pressing disc, then the pressure for pressing the tea leaves is adjusted, and the quality and consistency of tea cakes are guaranteed.

The present invention belongs to the field of additive manufacturing technology, and specifically is an additive manufacturing molding equipment, including a machine body, a powder spreading unit, a laser unit and a molding unit, wherein the powder spreading unit includes: a powder box fixedly installed inside the machine body; a feeding assembly installed in the No. 2 cavity; a stirring assembly installed in the No. 2 cavity; a receiving plate installed in the machine body; a powder spreading platform fixedly installed in the machine body; a side plate fixedly installed inside the machine body, on which a smoothing assembly is slidably installed; by setting the stirring assembly, the powder coming out of the storage cavity on the discharging station is dispersed, even if the position where the storage cavity of the discharging station and the storage cavity of the feeding station are connected is blocked, the powder can still be evenly dispersed in the storage cavity after entering the storage cavity of the feeding station, so that after the powder falls onto the receiving plate under the action of gravity, it can be evenly distributed on the receiving plate along the direction of the discharge port.

A sorting structure of a die-cutting machine comprises a rotating disc driving structure, a connecting rod transmission structure and a sorting turning plate, and the rotating disc driving structure comprises a driving motor fixed to a rack of the die-cutting machine and a rotating disc driven by the driving motor. The connecting rod transmission structure comprises a connecting rod with one end rotatably connected with a rotating disc transmission shaft arranged on the rotating disc in a protruding mode and a rotating support rotatably connected with the connecting rod, one end of the sorting turning plate is rotatably connected with the rotating support, and the other end of the sorting turning plate is rotatably connected with the die-cutting machine rack so as to be driven by the connecting rod to rotate relative to the die-cutting machine rack. The sorting turning plate is located between a first main material belt and a second main material belt which are consistent in conveying direction and are independent of each other on the die-cutting machine. The end, connected to a rack of the die-cutting machine, of the sorting turning plate receives products conveyed by the first main material belt, and the sorting turning plate can rotate to be located on the same plane with the first main material belt and the second main material belt. According to the die-cutting machine sorting structure and the die-cutting machine, the situation that defective products are omitted can be effectively avoided, and the yield is increased.

The utility model discloses a novel cutting die automatic positioning device which comprises a power assembly, a positioning assembly movably connected with the power assembly, a cutting die bearing assembly located below the positioning assembly and a bearing assembly. The bearing assembly is used for mechanically fixing the power assembly, the positioning assembly and the cutting die bearing assembly; the cutting die bearing assembly is used for mechanically fixing the cutting die; the positioning assembly is used for enabling the edge face of the cutting die to be tightly attached to the positioning system face. And the terminal control module is used for sending instructions to the power assembly, the positioning assembly and the cutting die bearing assembly, so that all the assemblies play the functions according to the instructions. According to the utility model, the rapid and efficient flat die cutting is realized, the product quality problem caused by the unevenness of the edge of the cutting die is solved, and the waste of raw materials in the die cutting link is reduced.

The utility model provides a full-automatic beef marinating and boiling pot, which relates to the technical field of food processing and comprises a marinating and boiling pot body and a marinating and boiling pot cover connected with the top of the marinating and boiling pot body, a fixing frame is arranged in the marinating and boiling pot body, a bearing filter screen is arranged on the outer side wall of the fixing frame, and a vertical sliding groove and a plurality of bending grooves which are communicated are formed in the fixing frame. A communication round pipe is arranged in the center of the marinating and boiling pot cover in a penetrating mode, an extrusion support is fixedly connected to the bottom of the communication round pipe, and the communication round pipe can drive the extrusion support to move in the vertical sliding grooves of the fixing frame and the multiple bent grooves. An extrusion support can be driven to slide in a vertical sliding groove of a fixed frame by driving a communication round pipe, so that the extrusion support is in butt joint with a proper bending groove according to the quantity of beef in a marinating pot body, the beef in the marinating pot body is extruded, and the situation that the beef floats on the surface of marinade to affect the marinating effect, and consequently the quality of food materials is reduced is avoided.

The invention relates to the field of food processing, and discloses a fresh-keeping processing method of green bamboo shoots, which comprises the following steps: S1, cleaning collected green bamboo shoots: firstly, manually cleaning impurities on the surfaces of the bamboo shoots, and then carrying out secondary cleaning by using a sodium hypochlorite solution with the concentration of 0.02-0.05%; s2, grading and classifying the cleaned green bamboo shoots according to the appearance color and the tenderness degree; s3, the bamboo shoots are properly aired, ultraviolet rays are used for disinfecting the operation environment, 75% ethyl alcohol is used for spraying treatment on the operation contact surface, and a disinfected cutter is used for removing pollution wounds of the green bamboo shoots. Through manual cleaning and secondary cleaning of the bamboo shoots with a 0.02-0.05% sodium hypochlorite solution, ultraviolet sterilization and disinfection of operation surfaces and tools with 75% ethanol are combined, microorganisms and impurities are effectively removed, the risk of wound pollution is reduced, the wound is soaked with a fresh-keeping solution and packaged with a double-layer paper bag, the fresh-keeping effect is enhanced, the moisture loss of the bamboo shoots is reduced, and the quality of the bamboo shoots is improved. And a plurality of defects of the traditional method are improved.

The invention provides a process debugging method for preparing a thin film by utilizing reactive magnetron sputtering, which comprises the following steps of: 1, determining the target working power of the reactive magnetron sputtering and the target flow of working gas according to the arc discharge condition of the surface of a target material; 2, based on the target working power and the target flow of the working gas, the surface roughness of the thin film prepared through reaction magnetron sputtering is measured under different powers of the auxiliary source, and the auxiliary source power corresponding to the surface roughness smaller than 0.2 nm is determined as the target auxiliary source power; 3, based on the target working power, the target flow of the working gas and the target auxiliary source power, the absorption loss of the film on the surface of the substrate is tested through a weak absorption analysis method by using the reaction gas with different flows, and the absorption loss is used for representing the reaction degree of preparing the film through reaction magnetron sputtering. A reaction gas flow rate corresponding to an absorption loss satisfying 10 ppm or less is determined as a target reaction gas flow rate.

The invention belongs to the technical field of scheduling optimization, and particularly relates to a crude oil storage and transportation global commanding and scheduling optimization system, which comprises a crude oil quality judgment module, an optimal adaptive transportation equipment comparison module, an optimal transportation path comparison module, an operation state evaluation value acquisition module and a transportation equipment operation state judgment module. The quality of the crude oil to be transported can be assessed and judged, it is ensured that the quality of the crude oil meets the transportation requirements and standards, and according to the basic information data set of the crude oil to be transported, different transportation devices are compared to find the most adaptive transportation device and the optimal transportation path, so that the transportation cost, time and risk are reduced, and the transportation efficiency is improved; the operation state of the most adaptive transportation equipment under the optimal transportation path is evaluated and monitored, whether the operation state of the transportation equipment is qualified or not is judged, and when the operation state of the transportation equipment is not qualified, a corresponding emergency solution is provided to guarantee the safety and stability of the transportation process.

The present application discloses an efficient refining control method and system for animal fats and oils, and relates to the technical field of animal fat refining. The main technical scheme of the present application is: when the oil refining equipment executes the target process stage, the state parameters corresponding to the animal fats and oils are obtained, and the state parameters are used to characterize the parameters related to the quality of the fats and oils; according to the state parameters, it is judged whether the animal fats and oils meet the process switching standards corresponding to the target process stage, and the process switching standards are set according to the quality requirements corresponding to different process stages; if so, the oil refining equipment is controlled to execute the next process stage corresponding to the target process stage. The main purpose is to quickly and accurately switch the different process stages dynamically according to the quality of the animal fats and oils, so as to improve the refining efficiency of the animal fats and oils. The present application is used for efficient refining control of animal fats and oils.

The utility model discloses a monitoring regulation and control system in gas extraction and collection, which comprises an extraction pump station, a gas inlet pipe of the extraction pump station is connected with an extraction system main pipe, the extraction system main pipe is connected with a plurality of extraction system branch pipes, a plurality of extraction holes are arranged in a coal seam through drilling operation, and extraction pipes are arranged in the extraction holes. The extraction pipes are connected with the extraction system branch pipes in a one-to-one correspondence mode, each extraction pipe is connected with a pressure sensor and a gas concentration sensor, each extraction pipe is connected with an extraction electromagnetic valve through a flange structure, and the pressure sensors, the gas concentration sensors and the extraction electromagnetic valves at the positions of the extraction pipes are all connected with an electric control device. The electric control device is located in the monitoring room and connected with a display screen. By the adoption of the gas extraction system, a worker can master the extraction pressure and the extraction concentration of a plurality of (generally dozens of) extraction pipes in a monitoring room, corresponding regulation and control can be conducted in time according to the actual working conditions of the extraction pipes, regulation and control efficiency is greatly improved, and the gas extraction system can conduct extraction work more stably and efficiently.

The utility model relates to an intermittent conveying mechanism for drying and cooling polycrystalline silicon after water quenching, a plurality of paired first silicon rod placing seats are arrayed on bottom frames, a lifting platform is arranged between the two bottom frames in a lifting manner, a moving platform is arranged on the lifting platform in a horizontal moving manner, and a plurality of paired second silicon rod placing seats are arrayed on the two sides of the moving platform respectively; the number of the pairs of the first silicon rod placing seats is one pair larger than that of the pairs of the second silicon rod placing seats, the mechanical arm carries the silicon rods placed in the shape like the Chinese character'pin 'to the first pair of the first silicon rod placing seats, and the second silicon rod placing seats carry the silicon rods on the previous pair of the first silicon rod placing seats to the next pair of the first silicon rod placing seats. Then, through movement cooperation of the lifting platform and the moving platform, the second silicon rod placing base carries the silicon rods on the previous pair of first silicon rod placing bases to the next pair of first silicon rod placing bases, and in the transferring process, moisture on the surfaces of the silicon rods is rapidly evaporated to dryness through the temperature of the silicon rods; and automatic joint production of water quenching, drying and crushing of the silicon rod can be realized.

The invention discloses a temperature control system of an immersion type freezing device and relates to the technical field of immersion type freezing temperature control. Temperature control in the dipping and freezing process is achieved, it is ensured that large ice crystals are reduced in the food freezing process, damage to the interior of food is reduced, and meanwhile energy consumption and cost are reduced. The system comprises a temperature acquisition module, a liquid pump driving module, an upper computer, a data transmission module, a control module and a refrigeration equipment control module, the upper computer performs data interaction with the control module through the data transmission module; the temperature acquisition module acquires the temperature of the frozen object and the external environment, converts the acquired temperature signal into an electric signal and sends the electric signal to the control module; the control module controls the power of the liquid pump driving module through a cascade control strategy and a PID (Proportion Integration Differentiation) control algorithm according to the temperature signal of the frozen object and the influence value of the external environment on the freezing liquid; and starting and stopping of the refrigeration equipment control module are controlled according to the real-time temperature of the frozen object. The method is suitable for the field of dipping type freezing temperature control.

The invention belongs to the technical field of handheld electric agricultural harvesting equipment, and discloses a handheld electric astragalus membranaceus excavating machine which comprises a main body, a soil turning assembly is arranged at the bottom end of the main body in a telescopic mode, and the soil turning assembly is in transmission connection with a driving assembly arranged on the main body and used for driving the soil turning assembly to work; the driving assembly comprises a motor arranged on the main body, the output end of the motor is in transmission connection with the input end of a gearbox arranged on the main body, and the output end of the gearbox is in transmission connection with the soil turning assembly; the soil turning assembly comprises a hydraulic sleeve arranged on the main body, and the output end of the hydraulic sleeve is in transmission connection with a soil turning shovel used for soil turning excavation. The device is compact and light in structure, easy to operate, convenient to use, capable of being used by one person, time-saving and labor-saving, the radix astragali digging efficiency is improved, manpower consumption is reduced, damage to radix astragali roots is reduced, the quality of the dug radix astragali is improved, and application and popularization are convenient.

The utility model discloses a drying and collecting device for benzotriazole production, which relates to the technical field of benzotriazole production and comprises a bottom plate. A drying chamber is fixedly connected to the upper end of the bottom plate, a steam outlet is fixedly connected to the upper end of the drying chamber, an inner cavity of the drying chamber communicates with an inner cavity of the steam outlet, a plurality of screen plate structures are slidably connected to the inner cavity of the drying chamber, and a driving structure is arranged on one side of the drying chamber and used for pushing the screen plate structures to shake in the inner cavity of the drying chamber. The output end of the electric push rod drives the second connecting plate to move back and forth, so that the second connecting plate can be utilized to drive the third connecting plate to move back and forth, and then the third connecting plate can drive the multiple screen plate structures to move back and forth in the inner cavity of the drying chamber. Compared with traditional static drying, benzotriazole is shaken back and forth, and therefore the benzotriazole can make contact with hot air evenly and fully.

The invention discloses automatic tea making equipment which comprises a rolling frame, a rolling disc mounted in the middle of the rolling frame and a rolling barrel above the rolling disc, and a supporting frame extending from the rolling frame to the middle is fixedly connected to the outer wall of the rolling barrel; the outer wall of the rolling disc is sleeved with a cleaning device capable of generating negative pressure, the cleaning device can move to the upper side of the rolling disc, and residual tea leaves at the bottom of the rolling disc are sucked out through the negative pressure for secondary utilization; a driving structure I and a driving structure II which are fixedly connected with the rolling barrel are mounted at the top of the support frame, and the driving structure I drives the rolling barrel to lift; a barrel cover is arranged in the rolling barrel, the second driving structure comprises a rotating device fixedly connected with the barrel cover, a reversing structure and a downward pressing piece, the barrel cover is driven to ascend and descend through the rotating device, and after the barrel cover ascends to the designated height, the downward pressing piece can be triggered to assist the barrel cover in steering, and the rolling barrel is opened to facilitate discharging; after blanking, the barrel cover reversely rotates and descends to close the rolling barrel.

The invention provides a step-by-step removal method for heavy metal nickel, cobalt and manganese in ammonia-containing wastewater. The step-by-step removal method comprises the following steps: firstly, removing the heavy metal nickel and cobalt through a first precipitation reaction, then adding an oxidant, removing the heavy metal manganese through a second precipitation reaction, and finally, obtaining a gypsum product through a third precipitation reaction. According to the step-by-step removal method, the ammonia-containing wastewater containing nickel, cobalt and manganese metal ions is subjected to step-by-step treatment, heavy metal nickel and cobalt are removed firstly, then manganese is removed through an oxidation method, the heavy metal manganese ions can be efficiently removed, the quality of gypsum is improved, a new thought is provided for treatment of the ammonia-containing wastewater, and the situation that due to a conventional process, the cost is low can be avoided. The total discharged heavy metal concentration of the wastewater exceeds the standard; and the gypsum quality is poor.