16results about How to "Control quantity" patented technology

The utility model relates to the technical field of hairdressing equipment, in particular to a rotary adjustable hair curling rod which comprises a shell, a hair curling assembly, a rotary shifting piece and an upper limiting block. The gear set of the rotary base is meshed with the driven gear, and the second gear teeth of the rotary shifting piece are meshed with the gear set, so that accurate rotation control over the curling iron is achieved, the curling angle and the curling direction can be adjusted more flexibly and stably, the curling effect and the user experience are improved, and the practicability is high. The heating piece is guided through the first moving guide rail and the second moving guide rail, the stability and accuracy of the heating piece in the hair curling process are guaranteed, the problems that a traditional hair curling rod is uneven in heating and unsmooth in hair curling are solved, the hair curling quality is effectively improved, and the upper limiting block and the top cover improve the structural stability of the hair curling rod and improve the hair curling efficiency. And in addition, the use safety is improved, the heating piece is prevented from accidentally falling off or shifting, and safer and more reliable use experience is provided for a user.

This invention discloses a method for controllable preparation of nanoparticles using a multi-channel microreactor. The method utilizes a microchannel reactor to segment droplets and prepare quantitatively synthesized nanoparticles with controllable particle size. The invention employs capillary action to draw the reaction solution into the microchannel, segmenting one or more droplets (each droplet into 10-100 portions). By changing the width of the microchannel, controllable preparation of nanoparticles within a small range (±3 nm) can be achieved; by changing the length of the microchannel, controllable preparation of nanoparticles within a large range (±10-30 nm) can be achieved. Furthermore, the reactor structure of this invention is simple, enabling highly precise and quantitative synthesis of various nanoparticles. Compared to large-scale reactors, the miniaturization of the synthesis reaction in this invention effectively reduces energy waste and safety hazards, making it highly valuable for applications in safe chemical engineering, green chemical engineering, high-efficiency chemical engineering, microchemical engineering, and precise reaction monitoring.

The application discloses a kind of automatic screening machine for processing of ice goby in the technical field of ice goby processing, including inlet hopper, inlet hopper top opening, first water pipe is communicated at the top of inlet hopper, and inlet hopper is communicated with screening device;Screening device includes first transport pipe, and first transport pipe is communicated with inlet hopper, and the end of first transport pipe away from inlet hopper is communicated with freshness identifier, and the end of freshness identifier away from first transport pipe is communicated with second transport pipe;Freshness identifier includes cabinet, controller, camera, light source and power supply are arranged in cabinet, camera is located at the side of cabinet near the top of first transport pipe, light source is located at the side of cabinet near the bottom of first transport pipe, first valve is arranged in first transport pipe, second valve is arranged at the communication part of second transport pipe and freshness identifier, and exhaust port is arranged at the side of cabinet, third valve is arranged in exhaust port.The technical scheme of the application can screen freshness by the proportion of white area of ice goby.

This utility model relates to the field of feed feeding technology, providing a feeding device suitable for the initial feeding of fish fry in factory-farmed aquaculture. The device includes a base, a feed storage bin, a spotlight, a conduit, a suction pump, and a particle detector. The feed storage bin is located on the base and holds the feed; the spotlight has a through-hole; the first end of the conduit connects to the feed storage bin, and the second end of the conduit connects to the spotlight through the through-hole; the suction pump is located in the conduit and is used to draw feed to the through-hole; the particle detector is located in the conduit and is used to detect the amount of feed flowing through. This utility model, by setting up a feed storage bin and a spotlight connected by a conduit, allows feed to flow through the conduit to the through-hole; the suction pump in the conduit regulates the flow rate of the feed to control the feeding speed; and the particle detector accurately detects the amount of feed flowing through, improving feeding accuracy and benefiting the fry rearing stage; it can control the feeding speed and quantity, reduce labor costs, make operation more convenient, and improve the survival rate of fry rearing.

The application belongs to the technical field of solid oxide fuel cell anode catalyst, and particularly relates to a preparation of a multi-doped layered perovskite anode and application thereof in ammonia solid oxide fuel cells. x Ba 1–x Mn 1–y TM y O 3–δ (0.4<=x<=0.6, 0<=y<=0.3, TM=Co, Fe, Cu), the precursor is phase changed under a reducing atmosphere to form a PrBaMn2O 5+δ layered perovskite with rich oxygen vacancies, and the doped transition metal is precipitated in the form of an alloy and anchored on the surface of the layered perovskite. The anode catalyst has a simple synthesis method, low cost, rich and flexible adjustable element composition. The obtained anode catalyst is made into a slurry and then assembled into a solid oxide fuel cell single cell sheet. The solid oxide fuel cell prepared by the application has good power output, electrical conductivity and stability at medium and high temperatures.

The utility model provides a feed additive granule surface coating polishing all -in -one, including body, coating drum, translation plate, reciprocating drive mechanism, liquid supply mechanism. The upper end of coating drum has the feed inlet, is provided with the shower nozzle on the translation plate, every shower nozzle all sets up to the coating drum inside towards, reciprocating drive mechanism drives translation plate to move back and forth along the straight line at the feed inlet position. The shower nozzle is driven under the translation plate and carries out reciprocating spraying work to the inside of the drum at the feed inlet, and the dynamic spraying structure is formed with the cooperation of liquid supply mechanism, and the shower nozzle can uniformly spray the spraying liquid to the granule surface of tumbling in the coating drum in the movement process. Compared with traditional fixed shower nozzle structure, the spraying coverage is significantly expanded, the spraying "blind area" and the repeated spraying area are effectively reduced, the utilization rate of the spraying liquid and the uniformity of the granule surface coating are improved, and the consistency and stability of the product quality are improved.

The application relates to the technical field of aluminum alloy ingot melting furnaces, in particular to an aluminum alloy ingot melting furnace capable of quantitative discharging, which comprises a melting furnace, a mounting frame, a driving mechanism and a discharging mechanism. The mounting frame provides support above the melting furnace, the driving mechanism drives the melting furnace to swing, and the discharging mechanism comprises a communication shell and a pushing groove frame. The communication shell is internally provided with a communication cavity, and the pushing groove frame is arranged in the communication cavity. The discharging mechanism realizes quantitative discharging through gear transmission and the like, solves the problem of inaccurate discharging of the existing equipment, improves production stability and efficiency, and reduces cost and labor intensity.

The application relates to the technical field of waste gas treatment, in particular to a non-filtering biological decomposition waste gas treatment device, which comprises a decomposition tank, a filler bed, an air pipe, a spray head, a grid plate, a return tank, a moving assembly, a flowing assembly and an atomizing assembly. A plurality of grid plates are arranged at the bottom end of the decomposition tank. The return tank is arranged at the lower end of the decomposition tank. Compartments are arranged at the two sides of the decomposition tank. The moving assembly is arranged in the compartments and connected with the grid plates. The atomizing assembly is arranged at the lower end of the return tank. The return tank recovers the liquid in the decomposition tank and preliminarily decomposes the waste gas through the atomizing assembly. The decomposed waste gas passes through the grid plates and flows into the filler bed for secondary decomposition and then is discharged. The moving assembly drives the grid plates to move and prevents the filler bed from caking. The flowing assembly prevents the surface of the grid plate from being blocked and guides the liquid to flow into the return tank, thereby solving the problem that the filler bed layer is prone to be blocked and caked when the waste gas quantity is large.

The present application provides siRNA delivery nanomaterials targeting M2 macrophages, which are mannosylated bovine serum albumin nanoparticles encapsulating siRNA interfering with KLK12. The mannose coating of the materials of the present application can provide targeting effect on M2 macrophages, and the siRNA released after endocytosis of the materials can silence the expression of KLK12 and its downstream MMPs genes, reduce the degradation of collagen fibers in lung tissues, thereby controlling the number and volume of pulmonary tuberculosis granulomas, preventing the occurrence of active tuberculosis, and providing a new option for the treatment of tuberculosis.

This utility model discloses a tire stacking device for a tire loading line, including a base, a lifting frame, a rotating platform, and a tire stacking clamping device. The rotating platform is connected to the base via the lifting frame, and the tire stacking clamping device is connected to the rotating platform. The tire stacking clamping device includes a clamping mechanism, a power motor, a power gear, a driven gear, a transmission rod, a slide rod, and a fixed frame. The power motor is mounted on the fixed frame, and the power rod is connected to the power gear. Several slide rods are connected to the fixed frame and slidably connected to two symmetrically arranged clamping mechanisms. The transmission rod is movably connected to the fixed frame, and each end is connected to a lead screw, which is transmitted to the corresponding clamping mechanism. This tire stacking device for a tire loading line has a simple structure and is convenient and practical. It clamps tires by cooperating with two symmetrical clamping mechanisms, and controls the extension and retraction of the lifting rod by a lifting cylinder to control the number of tires clamped.

The application discloses a calcium abnormal treatment method of low-carbon low-silicon aluminum-containing steel and a production method of the low-carbon low-silicon aluminum-containing steel. In a gas supply mode of bottom argon blowing, a calcium wire is fed to molten steel. Under normal circumstances, the amount of the calcium wire fed per ton of molten steel is 1.05 m-1.35 m, the feeding speed of the calcium wire is 150-250 m / min, and the calcium content in the molten steel is 15-25 ppm. By controlling the feeding speed and the amount of the calcium wire, the types and quantity of inclusions in the molten steel are effectively controlled, and the situation of the stopper rising caused by the clogging of the tundish nozzle is reduced.

The present application discloses a kind of free-cutting high-temperature carburizing gear steel, it contains Fe and inevitable impurities, also contains the following chemical elements with mass percentage as follows: C: 0.225~0.275%, Si: 0.05~0.40%, Mn: 0.55~0.85%, S: 0.016~0.040%, Cr: 0.85~1.25%, Ni: 0.02~0.25%, Mo: 0.15~0.30%, Al: 0.030~0.050%, N: 0.008~0.020%, Nb: 0.003~0.019%, Ti: 0.003~0.019%. Correspondingly, the present application also discloses the manufacturing method of the above-mentioned free-cutting high-temperature carburizing gear steel, which comprises the following steps: (1) smelting; (2) casting; (3) heating: first heating to not higher than 700 DEG C in preheating section, then continue to heat to not higher than 980 DEG C in first heating section, after holding, continue to heat to 950~1200 DEG C in second heating section, after holding, enter soaking section, the temperature of soaking section is 1050~1250 DEG C and holding, then continue rolling or forging; (4) forging or rolling.

The application discloses a surface hardening steel with easy cutting and stable high-temperature grain size, which contains Fe and inevitable impurities, and also contains the following chemical elements with mass percentage as follows: C: 0.225-0.265%, Si: 0.05-0.35%, Mn: 0.80-1.20%, S: 0.015-0.040%, Cr: 0.90-1.20%, Al: 0.020-0.050%, N: 0.008-0.020%, Nb: 0.003-0.030%, and Ti: 0.002-0.020%. Correspondingly, the application also discloses a manufacturing method of the surface hardening steel, which comprises the following steps: (1) smelting; (2) casting; (3) heating: the heating temperature is 1100-1250 DEG C, and the holding time is 3-12h; and (4) forging or rolling. The surface hardening steel has good high-temperature grain stability, higher hardenability, narrower hardenability bandwidth and easy cutting, and has good use prospect and application value.

The utility model relates to the field of biological organic fertilizer processing equipment, and discloses a sterilizing and drying device for biological organic fertilizer, which comprises a conveying mechanism, a blanking mechanism and a spreading mechanism are arranged at the upper part of the left side of the conveying mechanism, the blanking mechanism is arranged at the left side of the spreading mechanism, and a sterilizing and drying mechanism is arranged at the upper part of the right side of the conveying mechanism. According to the sterilizing and drying device for the biological organic fertilizer, the gear motor is driven, so that the first shaft rod drives the separation blades to rotate, and therefore the discharging speed and number of the organic fertilizer are controlled, excessive organic fertilizer is prevented from being accumulated on the conveying mechanism, and the sterilizing and drying effect is effectively improved; the second shaft rod drives the spreading blades to rotate, so that the organic fertilizer falling in the middle of the conveying mechanism is spread to the two sides by the spreading blades, the organic fertilizer is uniformly distributed on the conveying mechanism, and the sterilizing and drying effects are improved.

The utility model relates to the technical field of agricultural instruments, in particular to a precision seed-metering device of a seeder, which comprises a connecting shell, a stockpiling bin is arranged in the connecting shell, a stirring seed-metering structure is connected in an inner cavity of the connecting shell, an adjustable quantitative structure is connected onto the stirring seed-metering structure, and the adjustable quantitative structure is connected onto the connecting shell. The side wall of the connecting shell is connected with a controller, the stirring seed-metering structure comprises a driving motor, the driving motor is connected into an inner cavity of the connecting shell through a connecting seat, the driving end of the driving motor is connected with a driving rod through a coupler, and the driving rod is connected with a stirring device. According to the precise seed-metering device of the seeding machine, the adjustable quantitative structure is arranged in the precise seed-metering device of the seeding machine, so that the adjusting rod in the adjustable quantitative structure is rotated to pass through the transmission structure, and the distance between the multiple groups of movable partition plates can be adjusted; therefore, the quantity of the seed-metering device during seed metering can be accurately controlled according to the requirement of seed metering.

This utility model discloses a batching device for precisely proportioning raw materials for kidney-tonifying moxibustion mud, including a support frame and a connecting frame. The connecting frame is installed on the outer wall of the support frame, and a first fixed frame is symmetrically installed inside the support frame. A support base is installed at the top of the connecting frame, and a rotating shaft is movably installed at the top of the support base. A rotating disk is installed at the top of the rotating shaft, and multiple sets of equally spaced discharge hoppers are installed inside the rotating disk, extending to the outside of the rotating disk. A discharge valve is installed at the bottom of each discharge hopper. This utility model not only enables convenient and precise proportioning of multiple sets of kidney-tonifying moxibustion mud raw materials, facilitating weighing-controlled feeding and improving the accuracy of proportioning multiple sets of kidney-tonifying moxibustion mud raw materials, but also facilitates convenient transportation of the proportioned kidney-tonifying moxibustion mud raw materials, improving the efficiency of proportioning and transportation.