49results about How to "Easy to control the amount added" patented technology

A crystal grain fining agent for Mg-alloy contains Al (72.5-99.8%), C (0.02-20%) and Mg (0-10 %), and is prepared through proportionally mixing aluminium powder, graphite powder and magnesium powder,baking, die pressing, and calcining at 700-1000 deg.C in vacuum or under inertial gas for at least 25 min.

The invention discloses a low surface energy liquid control release type marine anti-fouling paint, comprising the following components in parts by weight: 30.0-55.0 parts of film-forming resin, 7.0-18.0 parts of lamella cross-linking silicone oil microcapsule, 1.0-10.0 parts of plasticizer, 1.0-3.0 parts of defoaming agent, 15.0-35.0 parts of added pigment and 5.3-22.7 parts of solvent. The lamella cross-linking silicone oil microcapsule is obtained by polymerizing an oil-in-water system in situ; the core material of the lamella cross-linking silicone oil microcapsule is one or several of methyl silicone oil, hydroxy silicone oil, amino silicon oil and alkoxy silicone oil; and the wall material of the lamella cross-linking silicone oil microcapsule can be one of polyacrylamide, polyacrylic acid, polymaleic anhydride and the like which can be swelled in the water. The anti-fouling paint has the advantages of remarkable anti-fouling effects, no pollution to a marine environment, low cost and applicability for industrial application production. The film-forming resin is acrylic resin, the structural general formula of which is shown in the specification of the invention.

The invention relates to the technical field of permanent magnet preparation, and discloses a rare earth neodymium iron boron magnet grain boundary diffusion method. The method comprises the followingsteps: preparing an RTM alloy cast sheet containing heavy rare earth elements; preparing a neodymium-iron-boron magnet blank, and processing the neodymium-iron-boron magnet blank into a blank squaresheet; performing surface activation on the blank square sheet; placing the RTM alloy cast sheet and the blank square sheet subjected to surface activation in a graphite box in an up-down overlappingmanner until the graphite box is full of the RTM alloy cast sheet and the blank square sheet; and carrying out vacuum heat treatment on the graphite box filled with the product to obtain the neodymium-iron-boron magnet subjected to diffusion treatment. The grain boundary diffusion process is adopted, the heavy rare earth elements in the RTM alloy casting piece enter the magnet from the surface ofthe magnet through grain boundary diffusion and exist in a grain boundary area, magnetic hardening of a main phase grain surface layer area is achieved, the residual magnetism of the prepared sinteredneodymium-iron-boron magnet high in intrinsic coercive force is reduced by a small amplitude, and the consumption number of the heavy rare earth elements is obviously reduced.

The invention discloses a feeding stirring device of a wet metallurgy reactor, relates to an improved feeding stirring device of a reactor for wet-process smelting and especially leaching, neutralizing, settling and crystallizing in wet metallurgy. The feeding stirring device structurally comprises a stirring shaft and stirring paddles arranged on the stirring shaft. The feeding stirring device is characterized in that the stirring shaft is a hollow rotating shaft, the upper end of the rotating shaft is provided with a feeding hole, positions, which are provided with the stirring paddles, on the stirring shaft are provided with discharging holes, the stirring paddles are provided with feeding through holes communicated with the discharging holes of the stirring shaft, and the blades of the stirring paddles are provided with discharging holes. According to the feeding stirring device disclosed by the invention, gas and/liquid is uniformly added in a reaction system effectively, so that the utilization rate is increased, the adding quantity is conveniently controlled, and the loss is reduced.

The invention discloses a method for burning sludge in chain grate. A sludge feeding port is arranged on rear arch on the side surface of the chain grate used in the method; and coal and sludge are respectively added into the furnace of the chain grate. The method comprises following steps: adding the coal into the grates of the chain grate through a coal valve from a coal scuttle in front of the chain grate; preheating, drying, and burning the coal sequentially along with the movement of the grates of the chain grate; uniformly adding the squeezed and dewatered sludge alone from the sludge feeding port into the chain grate, wherein the sludge falls onto the grates in a position in the vicinity to the rear arch at 1/2 to 3/4 the tail section of the furnace of the chain grate; and igniting and burning the sludge added in the position by the temperature of the tail section of the furnace of the chain grate when the coal burning is substantially ended, wherein the added amount of the sludge is calculated and adjusted in real time according to the heat value of the coal and the temperature when the added amount is stabilized. The chain grate can ensure complete burning of coal when used for burning various kinds of sludge with heat energy utilization value, thus effectively utilizing the heat value of the sludge and improving the heat efficiency of the chain grate.

The invention discloses a filtering device for a lithium sulfate concentrate for lithium mica production. The filtering device comprises a first kettle body and a first liquid outlet pipe. The upper end of the first kettle body is provided with a liquid inlet. The lower end of a filter plate frame is provided with a first filter net. The first liquid outlet pipe is disposed on the right side surface of the first kettle body. The first liquid outlet pipe passes through a second kettle body and is connected to a first feeding pipe. The fixed upper end of the second kettle body is provided with areagent cartridge. The middle of a connection rod is provided with a flow passage. The lower end of a liquid discharge tray is provided with a reaction tank. The left end of the reaction tank passesthrough the second kettle body and is connected to a first motor. The outer side of the right end of the second kettle body is connected to a second liquid outlet pipe. The filtering device can control the use amount of sodium carbonate, guarantee the reaction stability and prevent individual stirring and washing, has a small occupied area, realizes a low cost and has good centrifugal filtration effects.

The invention provides a chemical stirring tank capable of achieving premixing and being conveniently cleaned. The chemical stirring tank comprises a tank body and an upper cover; the interior of the tank body is partitioned into a premixing cavity and a stirring cavity through a partition plate; the upper cover is provided with feeding devices which comprise the first feeding device and the second feeding device; a premixing device is arranged in the premixing cavity and composed of a mixing motor, a mixing rotation shaft and mixing sheets; a cleaning device is arranged on the top of the stirring cavity and composed of a water pipe, spray heads and a pressurizing pump; a stirring device is arranged at the bottom of the stirring cavity and composed of a stirring motor, a stirring shaft, stirring sheets and a scraper plate. According to the chemical stirring tank, materials are added into the premixing cavity through the first feeding device and the second feeding device at uniform speed, and therefore the adding amount of the materials can be conveniently controlled; the materials are premixed through the premixing device; the materials are fully stirred through the stirring device.

The invention discloses an automatic lubricating oil adding mechanism convenient for adding amount control for a reducer. The automatic lubricating oil adding mechanism comprises a protection shell, an oil cup, a mounting box and a fourth spring. A groove is formed in the upper end of an oil outlet pipe, and a first spring is arranged on the outer side of the oil outlet pipe. The fourth spring isarranged on the right side of a connecting tooth block and located on the inner side of a storage groove. The connecting tooth block is connected with a vertical rod through the fourth spring. According to the automatic lubricating oil adding mechanism convenient for adding amount control for the reducer, when a third gear moves, the third gear can jack the vertical rod repeatedly, the vertical rod jacked by the third gear can stir and rotate a ratchet wheel through the connecting tooth block, the rotary ratchet wheel can drive a second transmission wheel and a first transmission wheel to rotate through a third transmission wheel, the self motion characteristic of the reducer can be utilized for driving the related lubricating oil adding mechanism to work, and power waste is avoided.

The invention provides a process for preparing nitrogen containing refiner for magnesium alloy, which comprises the following steps: respectively adding pure magnesium and pure aluminium in a vacuum electromagnetic induction furnace according to the mass ratio which is 7-9:1-3, adding Mg3N2 powder according to 3%-4% of aluminum-magnesium melt quality after heating up to alloy is completely melted, preserving heat, and casting, wherein percentage by weight of each component of nitrogen containing refiner which is got is that magnesium 70-90%, aluminum 9-29% and aluminium nitride 1-2%, adding refiner in the process for preparing magnesium alloy, wherein the adding amount is 0.5-1.5%, and the addition temperature is 700-750DEG C. The purpose of refining magnesium alloy crystal grain and improving strength toughness and corrosion resistance property of magnesium alloy can be achieved through utilizing the refiner to prepare Mg-Al magnesium alloy, the technique is simple, and addition amount and refining effect are easy to be controlled.

The invention discloses a speed reducer lubricating oil automatic adding mechanism with the addition amount convenient to control. The mechanism comprises a substrate, fixing plates and a micro motor.An oil collecting box is mounted on the right side of the substrate through bolts, and an oil inlet is formed in the outer surface of the oil collecting box. The micro motor is mounted at the upper end of the oil collecting box, and an output end of the micro motor is fixedly connected with a cooling fan. The cooling fan is connected with the inner surface of the substrate. First air inlets are formed in the inner surface of the upper end of the substrate, and the inner surface of the substrate is fixedly connected with the fixing plates. According to the speed reducer lubricating oil automatic adding mechanism with the addition amount convenient to control, when lubricating oil in the device is consumed after long-time working or evaporates under a high temperature, the height of a movable floating block is moved downwards, accordingly, a transmission gear drives six seal blocks to automatically open through relative reset force of a torsional spring, accordingly, lubricating oil addition work is automatically performed, and an automatic lubricating oil addition function with the addition amount automatically controlled is achieved.

The invention discloses a medicament bending device being able to easily control the dosage and used for medicine production. The device comprises a frame, a mobile station sliding slot is arranged inthe bottom inner wall of the frame, the inner wall of the mobile station sliding slot is slidably connected with a mobile station, leading screw mounting holes are arranged in the inner wall at two sides of the mobile station sliding slot, the inner walls of the two leading screw mounting holes are connected with a leading screw by bearings, a driving motor is fixed at the outer wall of one sideof the frame by a bolt, the output shaft of the driving motor is fixed to the outer wall of one end of the leading screw by a shaft coupling, a supporting plate is fixed on the top of the mobile station by a bolt, a supporting shaft is fixed on the top outer wall of the supporting plate by a bolt, and a mixing cylinder sleeves the outer wall of one side of the supporting shaft. The device can control the volumes of raw materials in fixed cylinders, so the addition amounts of drugs can be easily controlled, the labor intensity of workers is reduced, the improvement of the mixing effect of medicament raw materials is improved, dissolving of solid particles is accelerated, and the improvement of the production efficiency is facilitated.

The invention relates to the technical field of materials, and particularly relates to a continuous mixing tracer agent addition method for testing uniformity. The tracer agent addition device comprises the continuous mixing machine, wherein a tracer agent addition port is arranged in the side wall of a feeding port of the mixing machine and is provided with an atomizing nozzle which is sequentially connected with an infusion pump and a stirring device through a pipeline, wherein a flowmeter and a pressure detecting element are aslo arranged on the pipeline, and a regulating valve is arranged on the atomizing nozzle. When mixing uniformity is determined, after the mixing machine normally works, a tracer agent solution with certain concentration is mixed in a stirring tank and then is added to the mixing machine at a certain flow speed through the atomizing nozzle according to the capacity of the mixing machine, a sample is drawn from a discharging hole of the mixing machine, and the mixing uniformity of the sample is determined according to a national standard GB/T5918-2008 feed-product mixing uniformity determination method. The tracer agent addition device solves the problem that the uniformity indicator of the continuous mixing machine in the prior art cannot be accurately and really detected.

The invention provides a traditional Chinese medicine composition for softening hardness to dissipate stagnation and a preparation method thereof, and relates to the technical field of pharmaceutical preparations. The traditional Chinese medicine composition for softening hardness to dissipate stagnation is prepared from the following raw materials in parts by weight: 20 to 40 parts of fructus citri, 5 to 20 parts of phytosterol, 10 to 40 parts of rhizoma nelumbinis, 5 to 20 parts of raw malt, 30 to 60 parts of pericarpium citri reticulatae, 1 to 15 parts of radix platycodonis, 10 to 30 parts of flos rosae rugosae, 20 to 40 parts of herba taraxaci, 5 to 15 parts of fructus citri sarcodactylis, 10 to 25 parts of radix angelicae sinensis and 20 to 35 parts of concha ostreae. The medicine disclosed by the invention has the effects of softening hardness to dissipate stagnation, removing stasis and dredging collaterals, can effectively treat thyroid nodules and breast nodules, and also can treat hysteromyoma, ovarian cyst, pulmonary nodules and lipoma. The preparation method can effectively extract the effective components in the traditional Chinese medicine, so that the content of the effective components in the medicine is high, and the efficacy of the medicine is improved.

The invention relates to magnetic coagulation and sedimentation integrated water purification equipment which comprises a tank body, a moving device, a scattering device and a control device. A support comprises a power assembly and a sleeve. The material scattering device comprises two groups of material scattering assemblies which are arranged up and down and are used for scattering magnetic powder and a flocculating agent respectively, the material scattering assemblies comprise two groups of material scattering mechanisms which are symmetrically arranged, and each material scattering mechanism comprises a discharging assembly provided with a plurality of material storage spaces, a power assembly and a transmission assembly which is in power connection with the discharging assembly and a rotating column. The control device comprises a stand column, a driving assembly a surrounding the stand column and used for driving the water guiding assembly to guide water, and a driving assembly b vertically arranged on the stand column and in power connection with the transmission assembly. The magnetic powder and the flocculant are evenly distributed in the pool body, and meanwhile sewage in the pool body can be subjected to multiple times of flocculation and sedimentation.

The invention discloses a method for manufacturing a gradient composite electrode for electrical spark rough machining and electrical spark finish machining for laser solid forming and belongs to the technical field of electric discharge machining. The method comprises the steps that a three-dimensional solid model is generated by means of software, the model is sliced and layered, and the parameters of all slice layers are obtained; then, Cu-based SiC composite micro powder is sintered on a vibrating substrate by means of laser according to the shape parameter of the slice layer on the inner side; finally, Cu powder and graphite powder are sintered on a Cu-based SiC composite sediment layer in a mixing mode by means of laser according to the shape parameter of the slice layer on the outer side. The electrode manufactured through the method is provided with a gradient structure, and electricity is discharged firstly by the Cu-based graphite sediment layer located on the outer layer of the electrode so as to achieve rough machining of a workpiece; then finish machining of the workpiece is achieved by means of the Cu-based SiC composite sediment layer of the electrode. Meanwhile, the Cu-based SiC composite micro powder is formed by blowing SiC particles in molten Cu in a dispersed mode by means of nitrogen and then conducting atomization and cooling, in this way, the distribution uniformity of the SiC particles is improved, and the equilibrium of the electric corrosion resistance of the electrode is improved.

The invention discloses kneading equipment for processing dough with high content of coarse cereals. The kneading equipment comprises two fixed seats which are symmetrically fixed on a working surface, a kneading barrel is fixedly connected to the top ends of the two fixed seats through screws, a feeding funnel is connected to the top surface of the kneading barrel in a penetrating manner, and horizontal plates are welded to the two sides of the top end of the kneading barrel; rotating rods are rotatably connected between one ends deviating from the kneading barrel, of the horizontal plates and the fixing base, fixing rods are further rotatably connected to the middle of the front side of the top surface of the kneading barrel, and the upper ends of the rotating rods penetrate through thehorizontal plates and are rotatably connected with the fixing rods through a conveying belt; a mounting frame is also fixed to the top surface of one horizontal plate on one side; and servo motors I are fixedly connected to the inner bottom surface of the mounting frame through screws. The kneading equipment is reasonable in design and compact in structure, coarse cereal powder is uniformly pressed during kneading, the early-stage processing quality of dough is well guaranteed, and certain guarantee is provided for subsequent high-quality production of pastries.

The invention provides a flue gas treatment system based on chemical aggregation and electric precipitation. The flue gas treatment system comprises an aggregation liquid preparation unit, an atomization spraying unit and an electric precipitation unit, wherein the aggregation liquid preparation unit comprises an emulsification tank, a preparation tank and a mixing tank, the emulsification tank isprovided with a solid agglomerant inlet, a first water filling nozzle and an emulsion outlet, the preparation tank is provided with a liquid agglomerant inlet, an emulsion inlet, a second water filling nozzle and a liquid mixture outlet, the emulsion inlet communicates with the emulsion outlet, the mixing tank is provided with a liquid mixture inlet, a third water filling nozzle and an aggregation liquid outlet, the liquid mixture inlet communicates with the liquid mixture outlet, and the aggregation liquid outlet is connected with the atomization spraying unit arranged on an inlet flue of the electric precipitation unit through a material conveying pipeline. According to the flue gas treatment system, the chemical aggregation and the electric precipitation unit are combined, so that aggregation liquid is sprayed into the flue, the moisture content of flue gas is increased, fine particles in the flue gas grow up so as to be convenient to remove by the electric precipitation unit, andthe dedusting efficiency and the stability of the flue gas treatment system are greatly increased.

The invention discloses a water storage type wall-mounted plant wall cultivation grid capable of being spliced and relates to the technical field of wall planting equipment. The water storage type wall-mounted plant wall cultivation grid comprises two support rods and is characterized in that first connecting rods, plant plates and nutrient solution racks are arranged between the two support rods,LED lamps are mounted at the bottom of each first connecting rod, each plant plate is arranged at the bottom of each first connecting rod, the bottom of each plant plate is arranged inside the corresponding nutrient solution rack, the bottom of the each plant plate is provided with through holes, a liquid conveying pipe is arranged on one of the support rods, the outlets of the liquid conveying pipe are arranged in the nutrient solution racks, one end, away from the nutrient solution rack, of the liquid conveying pipe is connected to a flowmeter through a pipeline, the input end of the flowmeter is connected to the output end of a liquid conveying pump, the input end of the liquid conveying pump is connected to the bottom of a liquid storage tank, and a stirring mechanism is arranged inside the liquid storage tank. The water storage type wall-mounted plant wall cultivation grid is convenient to use, convenient to splice, high in nutrient solution quality and low in labor intensity.

The invention discloses forming equipment for an asphalt mixture test piece and a using method. A discharging device comprises a material containing device which is through up and down, and stirring blades are arranged in the material containing device; a rolling forming device comprises two threaded rods, two limiting rails, a rolling wheel and a telescopic device used for applying pressure to the rolling wheel, forward threads are formed in each threaded rod from one end to the middle of the threaded rod, reverse threads are formed in each threaded rod from the other end to the middle of thethreaded rod, the two threaded rods are oppositely arranged in parallel, and the two threaded rods can synchronously rotate around the axes of the threaded rods; the two ends of one limiting rail arecorrespondingly connected with the forward threads of the two threaded rods in a matched mode, and the two ends of the other limiting rail are correspondingly connected with the reverse threads of the two threaded rods in a matched mode. The rolling wheel stretches across the two limiting rails, the telescopic device is arranged above the rolling wheel, the two ends of the rolling wheel are rotationally connected with telescopic rods of the telescopic device, and the telescopic device can reciprocate in the direction of the limiting rails. The influence of personal errors is reduced, and theforming efficiency of the test piece is improved.

A treatment device for boron-containing organic wastewater is disclosed. The device includes a low-pressure dissolved air tank, a sewage draining pump connected to the low-pressure dissolved air tank,an ozone generator connected to the low-pressure dissolved air tank, a catalytic reactor connected to the low-pressure dissolved air tank and a water discharging pipe connected to the catalytic reactor. The low-pressure dissolved air tank increases the dissolved amount of ozone in wastewater. The catalytic reactor includes a reactor shell and includes an aeration zone, a filler zone and a reaction zone which are arranged in order from bottom to top in the reactor shell. The lower part of the aeration zone is provided with a water inlet. The water discharging pipe is arranged at the upper partof the reaction zone. Titanium dioxide catalytic plates are arranged lengthways and divide the reaction zone into a plurality of oxidation zones, an ultraviolet lamp column is vertically disposed inthe center of each oxidation zone, and the catalytic plates are completely in the radiation distance of ultraviolet light. A light-reflecting guide cylinder can reflect ultraviolet light, thus enhancing illumination and increasing the photocatalysis efficiency. The catalytic reactor is connected to a tail gas treatment device to treat tail gas residual after emission.

The invention relates to the technical field of defoaming agents, and particularly relates to a defoaming agent and a preparation method thereof which can improve the foam inhibition performance, conveniently control the addition amount of the defoaming agent according to different use requirements and improve the use portability. The defoaming agent comprises the following components: 1-2% of anemulsifier, 0.6-1.0% of a dispersing agent, 0.8%-1.2% of an emulsifying aid, 3-5% of an active component, and the balance of a carrier. The production method of the defoaming agent comprises the stepsof S1, preparing a carrier binder, specifically, mixing the sodium humate into a viscous state; S2, conducting carrier material mixing, specifically, grinding and sieving the activated carbon powder,adding the ground and sieved activated carbon powder into the binder, and continuously stirring and mixing until the materials are mixed into a ball; S3, conducting mixing and kneading treatment; S4,forming carrier particles; S5, carrying out carbonization treatment; S6, conducting dressing mixing; S7, conducting carrier dressing; S8, conducting irradiation curing, specifically, guiding the carrier filled with the dressing into irradiation equipment for irradiation treatment so as to enable the dressing to be cured in apertures of carrier particles; and S9, conducting sub-packaging.

Belonging to the technical field of liquor condiment preparation, the invention discloses a method for preparation of a liquor condiment based on molecular sieve concentrated huangshui fluid. The method includes: employing 5 groups of equipment to concentrate huangshui fluid by molecular sieves to obtain concentrated huangshui fluid, putting the concentrated huangshui fluid into a closed container, and storing the closed container in shade for standby use later; extracting low-boiling point natural acetaldehyde, methanol, ethyl formate and ethyl acetate; purifying ethyl formate and ethyl acetate; and finally carrying out esterification reaction to obtain an esterified solution containing ethyl acetate, ethyl propionate, ethyl butyrate, ethyl valerate, ethyl lactate and ethyl caproate. The liquor condiment prepared by the method provided by the invention is a safe and pure natural product without any chemical brought in during preparation. Therefore, the liquor condiment prepared from huangshui fluid as the raw material includes synthetic natural esters and other natural organic matters, is closer to natural products when used for liquor blending, and can be more easily accepted by consumers.

The invention discloses concrete mixing plant for hydraulic engineering construction. The concrete mixing plant for the hydraulic engineering construction comprises a base, a mixing barrel is fixedlyarranged on the base through a first connecting rod, a first motor is fixedly arranged on the base, a transmission shaft is fixedly arranged on a rotating shaft of the first motor through a first coupler, the transmission shaft penetrates through the bottom end of the mixing barrel and extends into the mixing barrel, a plurality of spiral stirring blades are fixedly arranged on the outer wall of the upper end of the transmission shaft, and four semiconductor coolers are fixedly embedded in the outer wall of the bottom end of the mixing barrel at equal intervals in the circumferential direction. The concrete mixing plant for the hydraulic engineering construction has the beneficial effects that the mixing barrel and concrete can be effectively cooled when the concrete is stirred, so that the phenomenon of false setting of the concrete due to over-high temperature can be avoided, a raw material can be weighed and metered, the addition amount of the raw material can be conveniently controlled, the raw material can be strictly added according to a scientific ratio, and therefore, the quality of the produced concrete can be ensured.