58results about How to "Reduce total usage" patented technology

The invention discloses a security encryption transmission system for game data, and relates to the technical field of game data encryption. Comprising a network environment data collection module, a network risk feature extraction module, a feature analysis and machine learning evaluation module, a network environment classification module, a low-risk network Hash algorithm module and a high-risk network Hash algorithm adjustment module, and various parameter information of the current network environment is comprehensively collected. According to the method, the network environment is intelligently evaluated through machine learning, the system recognizes a high-risk situation in real time, the Hash algorithm is dynamically adjusted, stronger encryption is adopted when the risk is high, the communication safety is improved, and viruses and ransomware are prevented. And when the risk is low, a fixed Hash algorithm is used, and high performance is kept. According to the mechanism, data security is effectively guaranteed, resource use is optimized, and security and system performance are balanced.

The invention provides a communication method and system for a terminal and a cloud server, and the method comprises the steps: the terminal configures an agent client, sets an agent parameter at the agent client, starts an agent, and enters a first communication mode, and the agent parameter comprises a local agent port; in the first communication mode, the terminal applies for a service key from a cloud server, and if the service key is successfully acquired, the terminal is allowed to enter a cloud computer interface; wherein the service key is used for encrypting or decrypting a cloud resource service flow packet transmitted by the local agent port. A terminal proxy client is set to start a proxy, a secure communication mode between a terminal and a cloud server is entered, and a cloud resource service flow packet is encrypted by using service keys held at two ends, so that cloud resources are prevented from being intercepted, leaked and tampered in transmission, and office security is protected; encryption at a flow layer is realized through an agent, the execution efficiency is high, encryption and decryption are implemented by combining a symmetric cryptographic algorithm with a high encryption and decryption processing rate, so that the processing capability and the response speed of the whole system are extremely high, and non-inductive secure acquisition of cloud resources is realized; encryption is carried out on the flow layer, and compared with a service layer, keys can be saved; the terminal is set to obtain the service key and enter the cloud computer interface, so that unauthorized users or hostile attackers are prevented from operating the cloud computer, and the system security is improved.

The utility model relates to the technical field of decoration panel installation, in particular to a decoration panel installation structure. The decoration panel mounting structure comprises a connecting piece which is fixedly connected with a wall through a fixing assembly, a first connecting part and a second connecting part are constructed on the side, away from the wall, of the connecting piece, and the first connecting part and the second connecting part are parallel and arranged at intervals; a first matching part and a second matching part are arranged on the back sides of the two adjacent decoration panels respectively, the first matching part is matched with the first connecting part, and the second matching part is matched with the second connecting part, so that the two adjacent decoration panels are fixedly connected with the connecting piece; every two adjacent decoration panels abut against each other so as to cover the corresponding connecting piece. The back side of the decorative panel is provided with the first matching part and the second matching part which are matched with the first connecting part and the second connecting part, so that the decorative panel is fixed on the connecting piece, an adhesive is avoided, and meanwhile, the connecting piece is simple to operate and convenient to mount.

The utility model relates to the technical field of power plant comprehensive wastewater treatment, in particular to a power plant comprehensive wastewater deep circulation treatment water-saving system which comprises a wastewater buffer pool. A chemical crystallization granulation fluidized bed, a steel clarifier, a clean water tank, a high-efficiency fiber filter, an ultrafiltration device, an ultrafiltration water production tank, a reverse osmosis device and a reuse water tank are in fluid communication with a water outlet of the wastewater buffer tank in the water flow direction, the reverse osmosis device is provided with a first water discharge pipe and a second water production pipe, and the first water discharge pipe is connected with a desulfurization system; the second water producing pipe is connected with a recycling water tank, and the recycling water tank is connected with a recycling system through a pipeline. A softening and clarifying pretreatment mode is adopted, so that the removal rate of SS (suspended solids) reaches up to 80-90%, and the SS content of effluent is kept below 10mg / L; the removal rate of COD (chemical oxygen demand) can reach 20-30%; the hardness removal rate reaches up to 80%-90%, and the effluent hardness is kept below 20 mg / L; in addition, calcium fluoride is generated while hardness is removed, and most fluorine ions can be removed.

The invention belongs to the technical field of crushing devices, and particularly relates to a crushing and sorting device for recycling waste lithium batteries, which comprises a base and a PLC (programmable logic controller) fixedly arranged on the upper surface of the base, and further comprises a conveying assembly arranged on the upper surface of the base and used for conveying the lithium batteries at intervals; the clamping assembly is arranged on the upper surface of the conveying assembly, the lithium battery is placed in the crushing assembly, and the clamping assembly can clamp the hardness and size of the lithium battery; and the sorting assembly is arranged on the upper surface of the base and located below the crushing assembly. Before the waste lithium batteries are conveyed to the crushing and sorting device, the size of the waste lithium batteries can be automatically detected, the distance between cutters in the crushing and sorting device can be adjusted according to the size of the waste lithium batteries, it is guaranteed that the waste lithium batteries are fully decomposed, meanwhile, excessive crushing of the lithium batteries is avoided, and the quality of the lithium batteries is guaranteed. And the materials become too fine and are difficult to effectively recycle and utilize.

The invention relates to the technical field of medicines, and provides a pharmaceutical composition and application thereof. The pharmaceutical composition is prepared from erdosteine, benpipralin phosphate, olopatadine hydrochloride and procaterol hydrochloride. The pharmaceutical composition has the effects of relieving cough, eliminating phlegm and relieving asthma at the same time. Meanwhile, the erdosteine, the benpipralin phosphate, the olopatadine hydrochloride and the procaterol hydrochloride are compounded to achieve a synergistic effect, and the olopatadine hydrochloride is compounded to inhibit inflammatory exudation caused by respiratory tract infection and relax respiratory tract smooth muscles, so that the cough relieving and phlegm eliminating effects of the pharmaceutical composition are effectively improved; the cough relieving effect of the pharmaceutical composition is obviously better than that of benpipralin phosphate, and the phlegm eliminating effect of the pharmaceutical composition is obviously better than that of erdosteine.

The invention discloses an in-situ leaching liquid injection system and method for high-altitude ionic rare earth ore, and belongs to the field of rare earth hydrometallurgy. The system is composed of a liquid injection well pattern, a layered liquid injection device, a first liquid supply system, a second liquid supply system and a collection system. Exploring the thickness of an ore body weathering crust and vertical distribution of rare earth / impurities; the liquid injection hole is vertically divided into an upper layer liquid injection area (1 / 3-1 / 2 of the upper part) and a lower layer liquid injection area (1 / 2-2 / 3 of the lower part); a 1.0-1.4 wt% low-concentration diethylenetriamine-ammonium acetate composite leaching agent is injected into the upper layer, and co-leaching of impurities such as aluminum and iron is reduced; 1.5-2.5 wt% of high-concentration diethylenetriamine-ammonium acetate composite leaching agent is injected into the lower layer to ensure efficient leaching of rare earth; and rare earth-rich leaching liquid is collected. Compared with a traditional full-layer high-concentration process, the method has the advantages that the use amount of a leaching agent is reduced by 20-40% while the rare earth leaching rate is kept to be larger than or equal to 90%, the aluminum ion concentration of the leachate is reduced by 30-60%, the agent cost and the follow-up impurity removal load are remarkably reduced, and the method is particularly suitable for the high-altitude, low-temperature, low-air-pressure and thick-weathered crust environment.

This utility model discloses a centrifugal wastewater collection device for the production of sodium dichloroquinoline-8-quinoline carboxylate, belonging to the field of wastewater collection technology. It includes a centrifugal filtration device, a distillation tower, an oxidation tank, a membrane filtration system, an activated carbon adsorption box, and a recovery water tank arranged sequentially. The activated carbon adsorption box includes a box body with several symmetrically arranged support legs at the bottom. An outlet is located at the top of the box body, an inlet is located on the bottom side wall, and a wastewater outlet is located at the center of the bottom. The box body has a water distribution layer, a coarse-particle activated carbon layer, and a fine-particle activated carbon layer distributed sequentially from bottom to top. This centrifugal wastewater collection device for the production of sodium dichloroquinoline-8-quinoline carboxylate purifies the wastewater after centrifugation, allowing it to be reused as process water or cooling water, reducing the amount of fresh water required.

The present invention proposes a vehicle suspension dynamic state observation method and control method, which can estimate the state quantity of the suspension system and the road elevation by only using the easily measurable dynamic stroke (or dynamic velocity) signal. The estimation method does not require the sprung or unsprung mass acceleration signal required by the traditional method, which can significantly reduce the cost of subsequent processing of the control system sensor and controller signals, avoids the integral operation of the measurement signal and the problems caused by the use and processing of high-frequency signals, and is more conducive to engineering implementation and improving system reliability. The state estimation method proposed in the present invention can be used for other control systems of vehicle chassis dynamics, that is, the engineering implementation of the control system requires a control method that relies on the vehicle suspension dynamic state for state feedback.

The present application provides an information security level protection optimization method and system. The data provider performs system initialization, generates a public key and a master key, and generates a private key and an access control policy based on the public key, the master key and the access attributes corresponding to each authorized user, sends the private key to the corresponding authorized user, sends the data set and the encryption parameter to the data server, and sends the access control policy to the verification server; the user terminal generates a user access credential based on the private key and the public key, and sends an access request carrying the user access credential to the verification server; the verification server performs verification, and denies access if the verification fails, and sends the access request to the data server if the verification passes; the data server establishes a one-way channel with the user terminal, encrypts the data using the encryption parameters and transmits it to the user terminal in one direction; the user terminal decrypts the received encrypted data. Thus, fine-grained access control is achieved, scalability is improved, and data security is guaranteed at the same time.

The utility model discloses a double synergistic energy-saving waste gas desulfurization tower, which belongs to the flue gas wet desulphurization technology, and comprises synergistic devices positioned in the desulfurization tower, the synergistic devices comprise a first synergistic device and a second synergistic device, the first synergistic device comprises a tray, a plurality of sieve pores are arranged on the tray, and the sieve pores are communicated with the first synergistic device and the second synergistic device. The second synergistic device comprises a tube grid assembly, the tube grid assembly comprises a plurality of tube grids which are horizontally arranged in parallel, and gaps are formed among the tube grids. Flue gas in the desulfurization tower is fully purified through the double synergistic devices, the first synergistic device is a tray, sieve pores in the tray serve as gas-liquid rising and liquid-phase falling channels, the second synergistic device is a pipe grid, and spraying liquid flows along the pipe grid to form a liquid film. When the waste gas passes through the liquid film, the physical mass transfer and the chemical reaction are carried out at the same time, and the pollutants and the spraying liquid are in full contact and react. According to the scheme, the purification efficiency of pollutants in smoke dust by the desulfurization tower is improved, and the purification effect is improved.

This invention discloses a pellet preparation process based on fibrous bentonite slurry-enhanced pelletizing, belonging to the field of pellet preparation technology in the iron and steel industry. The process includes: wetting iron concentrate to 2.5%~3.5% moisture content; mixing with a first portion of bentonite, followed by sequential high-intensity mixing and milling to obtain pelletizing material; feeding the material into a pelletizer; after the mother pellets are prepared, atomized spraying of fibrous bentonite slurry replaces the addition of water during pelletizing, allowing the pellets to grow to qualified green pellets. The fibrous bentonite slurry is prepared by mixing a second portion of bentonite and water at a mass ratio of 1:5~20, and stirring for 4~6 minutes at a revolution speed of 120~130 r / min and a rotation speed of 280~290 r / min. This invention achieves uniform distribution of bentonite within the pellets through graded moisture control and precise spraying, reducing the total bentonite usage from 1.6% to 1.2% while ensuring pellet quality, significantly reducing bentonite consumption and achieving cost reduction, efficiency improvement, energy conservation, and emission reduction in pellet production.

The application discloses a water-saving method in the preparation process of iron oxide red, which is characterized by washing the filter cake formed after pressure filtration in the process of pressure filtration and washing of iron oxide red slurry, wherein the washing comprises: first washing the iron oxide red filter cake with secondary washing water, and the water after washing the filter cake forms primary washing water; second washing the iron oxide red filter cake with tertiary washing water, and the water after washing the filter cake forms secondary washing water; third washing the iron oxide red filter cake with clean water, and the water after washing the filter cake forms tertiary washing water; and the total amount of clean water used for washing each batch of iron oxide red filter cake is: when the conductivity of the primary washing water exceeds the rated value, the primary washing water is used for slaking the calcined iron oxide red, and the application fully utilizes the washing water at each stage and maximally saves the amount of clean water.

The utility model discloses a honey container convenient for taking honey, two long grooves for a taking assembly to move up and down are formed in a bottle cap, and one end of a taking device is movably connected with a connecting pipe; the taking device comprises a taking assembly arranged in the bottle cap and used for moving up and down, an extrusion pump used for conveniently collecting honey into the bottle body is arranged in the taking assembly, and a telescopic assembly used for driving the taking assembly to move up and down is arranged in the bottle cap. Therefore, due to the arrangement of the taking device, a user can conveniently control the taking amount of the honey, and the problem that the honey is easy to adhere and drop in a traditional taking mode is solved; due to the design of the slender pipe, the contact area between honey and air is reduced, oxidation and deterioration of the honey are delayed, and the freshness and taste of the honey are kept; the threaded connection of the bottle cap and the bottle body ensures the sealing performance of the container, effectively prevents the honey from being affected with damp and going bad, and prolongs the shelf life of the honey.

The invention discloses a gel electrolyte precursor, a gel electrolyte and a secondary battery, and relates to the technical field of gel electrolytes. Wherein the gel electrolyte precursor comprises a first flame retardant and a second flame retardant, the first flame retardant comprises ethyoxyl (pentafluoro) cyclotriphosphazene, and the second flame retardant comprises phosphate ester; on the basis of the mass of the gel electrolyte precursor, the total mass fraction of the first flame retardant and the second flame retardant is 4-9.5%. The ethyoxyl (pentafluoro) cyclotriphosphazene flame retardant and the phosphate flame retardant are introduced into the gel electrolyte precursor, and due to synergistic flame retardance of the ethyoxyl (pentafluoro) cyclotriphosphazene flame retardant and the phosphate flame retardant, the total dosage of the flame retardants in the precursor is reduced, and a good flame retardant effect can be achieved; a battery assembled by the gel electrolyte precursor keeps relatively high ionic conductivity and good electrochemical cycle performance.

A method of manufacturing a product (P), wherein said method comprises the steps of: preparing a multilayer element (1) comprising at least 80% of a non-extruded material (2) in solid phase and comprising at least one layer (2) which is barrier to liquids and / or oxygen; housing the multilayer element (1) in a mould (100) between a female portion (101) defining a forming cavity (102) and a punch (103) movable along a first longitudinal axis (X); compressing the multilayer element (1) by displacing the punch (103) towards a bottom wall (102a) of the cavity (102); and moving at least one lateral slide (104) of the female portion (101) defining the forming cavity (102) towards said punch (103); the step of moving the lateral slide (104) is performed so as to compress the multilayer element (1) between the slide (104) itself and the punch (103).

This utility model relates to a gas-fired trolley-type heater with internal denitrification, comprising a furnace body with several main burners mounted on it. The main burners are arranged in pairs facing each other, forming a group. The reversing valves of the two facing main burners are in different operating states, allowing them to operate in different states. Several environmentally friendly small burners are distributed on the furnace body wall, spaced apart from the main burners. The main burners and the environmentally friendly small burners are connected to a fuel pipe via a control valve assembly. This utility model, by incorporating environmentally friendly small burners to form small burner groups, works in conjunction with burner groups consisting of two or four burners to efficiently treat nitrogen oxides within the furnace body, significantly reducing the content of nitrogen oxides and other harmful substances in the flue gas and improving the heater's performance.

The utility model relates to the field of oral care clinical technology industry, in particular to a liquid taking device for a drip bottle. The technical problems that a conventional liquid taking device is difficult in liquid taking, liquid medicine is prone to secondary pollution after being started, and meanwhile the device is lack of leakproofness, so that the liquid medicine is prone to being wasted are solved. According to the technical scheme, the liquid taking device for the infusion bottle comprises a hopper body, a sealing cover and an insertion tube. According to the utility model, the intubation tube is inserted into the bottle body of the drip bottle through the bottle plug, so that liquid medicine in the bottle body is guided into the hopper body through the intubation tube, and when liquid is taken, the sealing cover is opened, so that a small amount of liquid medicine in the hopper body flows into a preset container, and the small amount of liquid medicine in the drip bottle can be quickly taken; the invasion of external pollution is prevented, the secondary pollution of the liquid medicine or the waste caused by volatilization and oxidation is not easily caused, and the problems are solved.

The application discloses a kind of coal gangue brick tunnel kiln waste heat self-provided negative pressure self-driven low-carbon intelligent SNCR denitration method, belongs to industrial kiln flue gas purification technical field.The present application relies on kiln firing section-150~‑300Pa self-owned negative pressure, extracts 1%~2% of total flue gas volume, temperature 600~750℃ High-temperature flue gas as power and heat source, without external fan and compressed air throughout, energy consumption is reduced by more than 75%.Flue gas is mixed cavity side wall tangent inflow, urea solution is sprayed from the top opposite side, overall flow passage is 5° below bias and forms no guide vane forced vortex, gas-liquid mixing time is extended to 0.3~0.45s;Combined with mixed cavity 400~550℃ primary pyrolysis and kiln 850~950℃ secondary pyrolysis, urea is completely decomposed.System reuses three original sight holes of kiln body, and the spraying station is automatically switched through temperature measurement linkage, and the response is ≤3s.The device is installed outside the bypass, without new hole, without production modification, without interfering with kiln thermal, and the qualified rate of brick billet is kept above 98%, with the advantages of low energy consumption, high stability, easy landing.

The present application belongs to the technical field of sealing test, and particularly relates to a diesel engine cylinder head sealing test tool device and a test method, which comprises a tool frame, the surface of the tool frame is used for placing a diesel engine cylinder, a support plate is fixed above the tool frame, a pressing mechanism is arranged on the support plate, and a test mechanism is connected below the pressing mechanism; the test mechanism comprises a cylinder pressure gauge, a pipeline, a one-way valve and a sealing rubber head, the pressing mechanism comprises a rocking wheel, a rotating shaft, a screw rod, an arc-shaped disc, a T-shaped block, a connecting rod and a spring, the pipeline is connected below the cylinder pressure gauge, the one-way valve is arranged in the pipeline, and the sealing rubber head is sleeved outside the lower end of the pipeline, the device solves the problem that the rotating shaft bearing is installed on the support plate and the sealing property in the test process cannot be improved, so that the test data is inaccurate.

The invention relates to the technical field of plant active ingredient extraction, and particularly discloses a method for efficiently preparing paeonol from moutan bark based on improved aqueous two phases. The method comprises the following steps: (1) extracting moutan bark powder in an aqueous two-phase system for 6-8 hours at 35-40 DEG C, and separating to obtain an upper phase solution rich in paeonol; wherein the aqueous two-phase system is composed of a sodium dihydrogen phosphate aqueous solution, tetrahydrofuran, ethanol and ethyl acetate, and the pH value of the sodium dihydrogen phosphate aqueous solution is 3.0-4.0; (2) sequentially carrying out vacuum concentration and drying on the upper-phase solution to obtain a paeonol crude product; and (3) recrystallizing the crude paeonol product for 4-6 hours by using a 70-75 vol% ethanol aqueous solution at 4-10 DEG C, filtering and drying in vacuum to obtain high-purity paeonol. The method provided by the invention can significantly improve the partition coefficient, yield and product purity of paeonol, reduce the use amount of the organic solvent and shorten the extraction time, has the advantages of environmental protection, simplicity, convenience, low production cost and the like, and is suitable for large-scale production.

This utility model discloses a disposable PVC syringe, including a syringe barrel. A conical head is installed at the top of the syringe barrel, and a piston is slidably installed inside the syringe barrel. An installation rod is installed at the top of the piston, and a stop is fixedly installed at the top of the installation rod. A slider shell is installed on the outside of the conical head, and a slider is slidably installed inside the slider shell. An elastic element is provided between the slider and the inner cavity of the slider shell. A limit component is provided at the bottom of the slider, and a contact surface for abutting the stop is provided on one side of the slider. This utility model uses a push rod to move the piston inside the syringe barrel. Before the liquid is fully propelled, the installation rod and the stop will not enter the conical head. When the liquid needs to be fully propelled, the installation rod and the stop enter the conical head upwards, and the slider blocks the stop, preventing the stop and the installation rod from disengaging from the conical head. This prevents the piston and the push rod from pulling down, thus rendering the syringe unusable.

This invention relates to the field of wastewater treatment technology, specifically to a papermaking wastewater treatment process based on mitigating sludge calcification, comprising the following steps: S1: pretreatment, S2: calcium separation treatment, S3: deep decalcification treatment, S4: deep treatment, S5: anaerobic biological treatment, and S6: recovery treatment. In this invention, the treatment agent added during the calcium separation treatment process achieves large-scale separation of calcium ions from the water in a gentle manner. Subsequently, in the deep decalcification treatment, a weakly acidic cation exchange resin is used for fine treatment. These two processes work synergistically to fundamentally and significantly reduce the calcium ion load entering the subsequent anaerobic biological treatment system, completely changing the conditions under which calcium carbonate deposits on the sludge surface in the biological treatment tank. This effectively solves the fundamental technical problem of reduced activity, decreased fluidity, and equipment scaling and clogging caused by sludge calcification.

The invention relates to the field of superconducting tape manufacturing, and provides a superconducting magnet coil tape combination method based on different formulas, which comprises the following steps: S1, acquiring magnetic field characteristics of coils at different positions of a superconducting magnet, the magnetic field characteristics comprising a ratio of a vertical magnetic field component to a parallel magnetic field component in a magnetic field, and a ratio of the vertical magnetic field component to the parallel magnetic field component in the magnetic field; different positions of the superconducting magnet are divided into a vertical magnetic field component leading position, a parallel magnetic field component leading position and a vertical parallel magnetic field component balancing position; s2, for coils at different positions of the superconducting magnet in the S1, preparing strips by adopting three different pinning formulas, and respectively adapting to magnetic field characteristics at different positions of the superconducting magnet; s3, coils are wound at the corresponding positions of the superconducting magnet through the strip in the S2, and the coils are connected in series to form the superconducting magnet. Precise matching of the strip performance and magnet space magnetic field distribution is achieved, the material utilization efficiency is improved while the magnet performance is guaranteed, the manufacturing cost is reduced, and the reliability of magnet operation is enhanced.

The invention provides a hulled barley with germinated wheat grains, having the following combination of features: a moisture content of no more than 10 wt.%; a color value of less than 22 EBC; the alpha-amylase activity is less than 58 dextrinized units (DU) per gram of dry matter; the extract content (CE) of the solid adjuvant is a dry matter of at least 79% by weight; klason lignin content (CL) is a dry matter of less than 1.8% by weight; an ash content (CA) of less than 2.2% by weight of dry matter; wherein CE / (CL * CA) is greater than or equal to 25 and less than or equal to 160. The malt of the invention may be produced by a grain germination process (i) comprising a step of at least partially hulling barley grain prior to grain germination, and (ii) employing a shortened germination period.

The invention relates to a micro-bubble hydrogenation reactor and application thereof. The reactor is provided with a membrane tube micro-bubble generating device in a catalyst bed layer, so that gas can be input into the catalyst bed layer in the form of micro-bubbles, thereby solving the problem of uneven distribution of micro-bubbles in the axial direction in the prior art, and is conducive to strengthening gas-liquid mixing and reducing liquid back-mixing. Meanwhile, the membrane tube micro-bubble generating device has a simple structure and is easy to process and load and unload. The reactor is used in a hydrogenation reaction, and the hydrogenation reaction rate can be controlled by introducing different types of gases into an injection pipe of the reactor, thereby strengthening the controllability of the hydrogenation reaction, avoiding overheating, coking or deactivation of the catalyst, improving the reaction efficiency and extending the service life of the catalyst, and has high industrial application value.

The utility model relates to the seaweed wastewater treatment field relates to a device of recycling salt alkali and organic matter in seaweed wastewater, the utility model device, include: pretreatment unit, filter adsorption unit, membrane separation unit and collection unit, pretreatment unit includes cyclone desander and multistage sedimentation tank, filter adsorption unit includes multistage sand filter jar and disc filter, membrane separation unit includes alkali -resistant nanofiltration ware and reverse osmosis membrane group, collection unit includes thick water collection jar no.

The invention relates to the technical field of sweet tangelo planting management, in particular to a sweet tangelo chemical fertilizer applying method and application. According to the sweet tangelo chemical fertilizer application method, organic fertilizer and formula fertilizer application are combined, spraying or drip irrigation and furrow application are matched, chemical fertilizer application is reduced and fixed, the application amount of the organic fertilizer is properly increased, acid soil is effectively improved, the production cost is reduced, the quality and yield of sweet tangelo are improved, and production and income increase of farmers are promoted.

The utility model discloses a motor self-locking mechanism with a limiting function in the motor field, which comprises a bottom plate, a motor body, a locking assembly and a connecting assembly, the motor body is fixedly connected to the middle part of the top of the bottom plate, the locking assembly is fixedly connected to the middle part of the front part of the top of the bottom plate, and the connecting assembly is fixedly connected to the middle part of the front part of the top of the bottom plate. According to the motor self-locking mechanism with the limiting function, a power source is switched off, an electromagnet is powered off, adsorption to an iron plate is relieved, through resetting of a reset spring, the iron plate drives a sliding rod to reset, a mounting block is lifted, a fixing rod is lifted, and the outer side wall of a connecting disc is extruded and attached; the fixing rod is embedded in the fixing hole, so that the connecting disc is fixed, the transmission shaft of the motor body is locked, an electromagnetic brake mechanism is avoided, the structure is simple, the occupied space is reduced, the cost is saved, the motor is stopped at one position all the time, and the practicability of the device is improved.

This invention belongs to the field of mineral processing engineering technology, specifically disclosing a high-efficiency roughing method for copper-iron symbiotic ores. The roughing method involves feeding the raw ore into a primary mill for wet grinding, then performing spiral classification on the primary slurry to obtain overflow slurry I and underflow slurry I. Underflow slurry I is returned to the primary mill for regrinding. Overflow slurry I undergoes primary cyclone classification, and overflow slurry II is adjusted with water to obtain flotation slurry. Underflow slurry II is fed into parallel secondary mills I and II for wet grinding, and the wet-ground slurries are combined to obtain secondary slurry. Flotation of the flotation slurry yields rougher concentrate I and rougher tailings I. Rougher tailings I are discarded, and rougher concentrate I undergoes weak magnetic roughing to obtain rougher concentrate II and rougher tailings II. Rougher tailings II are sent to weak magnetic scavenging. Rougher concentrate II undergoes secondary cyclone classification, overflow slurry III is sent to weak magnetic cleaning, and underflow slurry III is returned to the secondary mill II for regrinding. This invention features high grinding efficiency and copper and iron recovery rate, low energy consumption, and a small variety and amount of reagents.