43results about How to "Avoid secondary crushing" patented technology

Provided is an online monitoring method for lubricating oil of a wind-power transmission. The online monitoring method for the lubricating oil of the wind-power transmission comprises the following steps that performance analysis is carried out on a tribology system of a gear case of the wind-power transmission, and a comprehensive information monitoring method which is based on three aspects, namely an abrasion, a lubricating oil physical and chemical performance and pollution is proposed; an integral information monitoring system is established through testable analysis, and viscosity, water and an abrasive grain are adopted to be used as testable characteristics corresponding to the three classes of information of the abrasion, the lubricating oil physical and chemical performance and the pollution; by utilizing the embedded type integral sensor technology, real-time obtaining of the information is achieved; by adopting a TCP/IP network communication protocol, remote monitoring is achieved; a relation model of the abrasion, a lubrication oil product and the pollution are established, and inducements of the abrasion or lubricating malfunctions are speculated. Online perfect information obtaining is achieved, the analysis on origins of malfunctions is provided, the effective monitoring method for a running state of the gear case of the wind-power transmission is achieved, and according to positioning of an abrasive malfunction, an oil replacing suggestion and other maintaining suggestions, the important engineering significance for lowering the triology malfunction and prolonging the complete machine service life is achieved.

The invention discloses a construction waste separating and crushing treatment device and relates to a construction waste treatment device and facility. The construction waste separating and crushing treatment device comprises a screening box, a smashing box and a collecting box; the screening box and the smashing box are connected through a smashing pipeline; the screening box is connected with the collecting box through a discharging pipe; the collecting box is connected with the smashing box through a connecting pipe; the top of the screening box is connected with an adding-in port; a screen plate is arranged in the screening box; the left end and the right end of the screen plate are connected with a vibrating device and a downwards-pressing device correspondingly; the smashing box comprises a guiding-in chamber, a machine chamber, an air compressor, a hydraulic machine, a hydraulic cylinder and a smashing device; according to the device, separating and smashing are combined together, separating of materials can be completed on the device, it is avoided that qualified waste is subjected to secondary smashing, unqualified waste can also be smashed, and convenience is brought to a user; and the screen plate in the separating device of the device can move up and down, and the blockage condition in the long time using process can be effectively avoided in the separating process.

The invention relates to a preparation method of a high-quality prebaked anode for a 500KA electrolytic cell. The method comprises the following steps of: (1) storing petroleum coke at different storage locations according to different producing areas; (2) crushing the petroleum coke blocks having the granularity greater than 200mm with a sledge hammer, sieving the petroleum coke blocks with the granularity less than 200mm, delivering the petroleum coke with the granularity less than 70mm into a petroleum coke conveyer belt, recrushing the petroleum coke with the granularity greater than 70mm so as to deliver the petroleum coke with the granularity less than 70mm into the petroleum coke conveyer belt; (3) feeding different petroleum cokes into a specified blending cabin, wherein the petroleum coke of one producing area is placed in each of the four blending cabins, and a belt weigher is arranged at the bottom of each blending cabin; (4) preparing calcined coke; (5) preparing rough coke, middle coke, fine coke and powdery coke; (6) preparing boiler-out thickeners; (7) preparing cooled thickeners; (8) preparing green bodies; (9) feeding the green bodies into a stacking storeroom for stacking; and (10) roasting the green bodies to obtain a prebaked anode. By using the preparation method, the electrolysis preparation requirement can be met, and safe and sable operation of the electrolytic cell is ensured.

The invention discloses a preparation method of a high-compaction high-capacity lithium manganate composite cathode material used for mixing ternary materials, which comprises the following steps: 1.Preparing a lithium manganate cathode material with small particle size and narrow particle size distribution; 2, preparing a large-particle, wide-particle-size distribution lithium manganate cathodematerial; 3, mixing that lithium manganate cathode materials with different particle size distribution. The invention finely controls two kinds of manganese source and lithium source with different particle size distribution, taking fully into account the effect of grain growth at high temperature, two kinds of cathode materials with wide and narrow distribution were prepared respectively, At last, the defect of insufficient compaction of single material is solved by mixing according to a certain proportion, and the defect of morphology caused by conventional secondary classification is avoided. Thus, the cathode material with 1C gram capacity of 122- 125 mAh/g and compaction density of 3.15 g/cm3 can be obtained.

The invention specifically relates to a hammer crusher with a screening structure, which belongs to the technical field of coal mine machinery. The hammer crusher is used for working face crossheading of an underground coal mine and comprises a bottom groove body, a crushing rack body, a drive unit, a hammer shaft assembly and a below-sieve conveying mechanism. Coal conveyed from the tail of a loading machine is conveyed to sieve meshes in the upper middle plate of the crusher through the scraper plate chain of the loading machine for screening; coal with a size smaller than the size of the sieve meshes falls down to the below-sieve conveying mechanism, is then transferred to a U-shaped port and enters coal flow on the scraper plate chain of the loading machine, which enables crushing of the coal when the coal passes through the hammerhead of the crusher to be avoided; coal with a size greater than the size of the sieve meshes is conveyed to the hammerhead of the crusher by the scraper plate chain of the loading machine for crushing, and coal which is crushed to a size smaller than the size of the sieve meshes falls down through the sieve meshes or is transferred by the scraper plate chain of the loading machine so as to prevent secondary crushing; coal with a size greater than the size of the sieve meshes is further crushed with the hammerhead of the crusher, and above-mentioned operation is repeated. The objective of the invention is to crush large coal transported by the loading machine to desired specifications during transporting.

The invention discloses a rotary drilling machine for a reverse-circulation pneumatic down hole hammer and a construction method for the rotary drilling machine. The rotary drilling machine comprises a chassis and a mast arranged on the chassis, wherein a reverse-circulation power head is mounted on a guide rail of the mast; the upper part of the reverse-circulation power head is provided with a water faucet; the water faucet is connected with a slag discharge tube; the lower part of the reverse-circulation power head is provided with a buffer; the buffer is connected with a gas box; the gas box is connected with a gas inlet rubber tube; the lower end of the gas box is connected with a drill stem; and the lower end of the drill stem is connected to the reverse-circulation pneumatic down hole hammer and a drill bit. The rotary drilling machine has the function of constructing the reverse-circulation pneumatic down hole hammer, can realize high-efficiency rock-entering, also can effectively protect hole walls, needs small drilling pressure and small rotary torque, can continuously take a core and can effectively solve orifice dust pollution.

The invention discloses a high-efficiency uniform feeding, sieving and crushing system for polysilicon and monocrystalline silicon and a method thereof. The system comprises a material cabin, a feeding machine, a crushing machine, an electronic valve, an accumulation amount detecting device and a control sub-system. The feeding machine comprises a feeding box, a vibrating motor and a screen mesh.The feeding box is provided with a box opening facing an upper discharging hole. One end of the screen mesh is positioned below the box opening; and the other end of the screen mesh faces a discharging end. The vibrating motor is used for moving a silicon material to the other end of the screen mesh in one direction to fall into a lower discharging hole. The accumulation amount detecting device isused for detecting the accumulation amount of the silicon material. The control sub-system is used for reducing the opening/closing frequency or opening/closing amplitude of the electronic valve whenthe accumulation amount is greater than a first preset accumulation amount, and increasing the opening/closing frequency or opening/closing amplitude of the electronic valve when the accumulation amount is smaller than a second preset accumulation amount. According to the high-efficiency uniform feeding, sieving and crushing system for the polysilicon and monocrystalline silicon and the method thereof, the silicon material uniformly falls into the crushing machine for crushing; the overall production efficiency of crushing is improved; the rejection rate of the silicon material is reduced; and the particle size of the finally crushed silicon material is more uniform.

The invention relates to the technical field of glass recovering and breaking equipment, and discloses a glass recovering and breaking device. The device comprises a box, wherein a baffle I is hingedto one end of the top of an inner cavity of the box, the end, located on the top of the inner cavity of the box, of the baffle I is fixedly connected with the bottom end of a connection rod, the top end of the connection rod extends to the outer portion of the upper surface of the box, and is fixedly connected with the bottom of a pull block, the portion, located between the top of the box and thepull block, of the outer portion of the connection rod is sleeved with a compression spring I, and rotating shafts I are movably sleeved with the inner cavity of the box. According to the glass recovering and breaking device, through action of breaking rollers, glass can be subjected to breaking treatment, the utilization rate of the glass is improved, the cost is saved, meanwhile, under cooperative action of baffle blocks and a grinding roller, the broken glass is ground, therefore, the glass is broken more evenly, the breaking effect is improved, meanwhile, secondary breaking conducted on the broken glass is avoided, and the working efficiency of glass recovery is improved.

The invention discloses a lotus root starch drying device in the field of lotus root starch processing. The lotus root starch drying device comprises a box body and a feeding hopper. The feeding hopper is fixed to the top end of the box body. Material baffles are arranged on the two opposite side walls in the upper end of the box body. The material baffles are downwards inclined. Condensation plates inclined upwards are arranged below the material baffles. The upper ends of the condensation plates abut against the material baffles. Water absorbing layers are fixed to the upper sides of the condensation plates. A plurality of capillary through holes are formed in the condensation plates. Electric heating plates are fixed to the inner walls of the parts, below the condensation plates, of the box body. Two transversely-parallel rotating shafts are further fixed in the box body. Impellers are fixed to the two rotating shafts respectively and are located below the condensation plates. The lotus root starch drying device is ingenious in concept and compact in structure, water left after drying in the box body can be effectively removed, lotus root starch can be cyclically dried, agglomeration of lotus root starch can be effectively avoided, secondary smashing can be avoided on lotus root starch, production efficiency is improved, and production cost is reduced; the water content of processed lotus root starch is small, agglomeration is avoided, quality is better, and eating is more convenient.

The invention is applicable to the technical field of construction equipment, and provides a construction waste crushing device. The construction waste crushing device comprises a shell; a feeding hopper, wherein the feeding hopper communicates with the top of the shell; an extrusion plate, wherein the upper part of the extrusion plate is rotationally connected to the inside of the shell through arotating shaft; a secondary sieve plate, wherein the secondary sieve plate is arranged inside the shell and is in contact with the bottom of the extrusion plate; and a driving part, wherein the driving part is arranged inside the shell and is connected with the extrusion plate through a transmission part, the transmission part comprises a rotating rod, a fixing rod, a connecting rod and a drivingwheel, the driving wheel is fixedly connected to an output shaft of the driving part, the fixing rod is rotationally connected to the inner wall of the shell, the rotating rod is rotationally connected to the extrusion plate, one end of the connecting rod is eccentrically and rotationally connected to the driving wheel, and the other end of the connecting rod is rotationally connected to the endparts of the rotating rod and the fixing rod, and wave strips are arranged on the secondary sieve plate, and pressing protrusions are arranged at the bottom of the extrusion plate. The construction waste crushing device has the advantages of being simple in structure, convenient to operate, good in crushing uniformity, capable of saving energy and good in synchronism.

The invention discloses a rare earth crushing device, and in particular relates to the technical field of rare earth permanent magnet element manufacturing. The rare earth crushing device comprises acrushing box; a motor is arranged at the top of the crushing box; a rotating shaft is arranged at the bottom of the motor; a first crushing cutter is fixedly arranged on the rotating shaft; a first screening plate is arranged at the bottom of the first crushing cutter; a second crushing cutter is arranged at the bottom of the first screening plate; a second screening plate is arranged at the bottom of the second crushing cutter; a third crushing cutter is arranged at the bottom of the second screening plate; a third screening plate is arranged at the bottom of the third crushing cutter; a drawer is arranged at the bottom of the third screening plate; and two feed ports are formed in the top of the crushing box. Three different screening plates are arranged in the crushing box for screeningrare earth, and three crushing cutters are used for crushing each layer of screened rare earth, so that the crushing efficiency is improved, and meanwhile, the secondary crushing of the rare earth iseffectively prevented to save rare earth resources.

The invention provides a partition plate oil-driven type engine oil-gas separation device. The partition plate oil-driven type engine oil-gas separation device comprises a pre-separation device arranged in a mounting groove of an air cylinder head cover, an initial separation device arranged in the mounting groove of the air cylinder head cover and an oil-driven type oil-gas separator arranged onthe exterior of the air cylinder head cover; an air inlet hole is formed in the mounting groove, the initial separation device is composed of at least two partition plates, an air vent hole is furtherformed in the air cylinder head cover, and an air outlet pipe connected with the oil-driven type oil-gas separator is arranged on the air vent hole; secondary acceleration can be carried out on oil-gas mixture by the partition plate oil-driven type engine oil-gas separation device, large oil drops and small oil drops are separated correspondingly and flow out through an oil return cavity, and theseparation efficiency is high; and in the adsorption of the small oil drops, a filter element do not have residue blocking due to the impact force of the secondary acceleration, therefore, the filterelement does not needed to be replaced at regular intervals, and the problem of replacing and maintenance at the intervals can be solved.

The invention relates to a hydraulic cyclone of a half-flux internal and external curve channel. The hydraulic cyclone is composed of a tail tube segment, a small awl segment, an impeller and an impeller shell. The impeller shell and the small awl segment are connected through a welding mode, a certain quantity of inlets are uniformly dispersed at the impeller shell, the impeller is placed in theimpeller shell, the impeller comprises uniformly distributed axisymmetric wide-sector guide vanes and impeller heads, the impeller is in a hollow structure, a left end outlet of the impeller head is alight-phase overflow mouth, a right side end of the impeller is a light-phase outlet, and a space formed between the impeller head and the impeller shell is a large awl segment; the small awl segmentand the tail tube segment are connected in a welding mode, a penetrating cavity is arranged between the small awl segment and the tail tube segment, the right end of the cavity and the light-phase overflow mouth in the large awl segment are communicated, and the end at the left side of the tail tube segment is a heavy-phase outlet.

The invention discloses a pulverizer with a screening secondary treatment function. The pulverizer with the screening secondary treatment function comprises a flow dividing box, a secondary pulverizing barrel and a material collecting barrel, a primary pulverizing barrel is arranged at the top of the flow dividing box, the interior of the primary pulverizing barrel is rotatably connected with a grinding roller, and the top of the secondary pulverizing barrel is fixedly connected with a second motor. The output end of the second motor penetrates through the secondary pulverizing barrel to be fixedly connected with a crushing cutter, the bottom of the outer wall of the secondary pulverizing barrel is fixedly connected with a second fan, the output end of the second fan extends to the bottom of the secondary pulverizing barrel, so that raw material blocks are crushed into powder, unqualified raw materials are pulverized through the crushing cutter, direct cutting and pulverizing through the crushing cutter are avoided, and the service life of the crushing cutter is prolonged; and the materials which are ground into powder are blown by the fan when entering the flow dividing box, so that fine powder falls down towards one side of a fine selection barrel, flow dividing of qualified materials and discharged materials is achieved, secondary crushing of the qualified powder is avoided, the crushing time of a crushing cutter is shortened, and the production efficiency is improved.