55results about How to "Avoid flying situations" patented technology

The invention relates to a microbial ore leaching method for simultaneously granulating and leaching copper tailings by using Aspergillus niger. Aspergillus niger and the copper tailings are co-cultured to make Aspergillus niger hyphae wrap the copper tailings in order to granulate and leach copper in the copper tailings. The method for granulating and leaching ores by using Aspergillus niger provides leaching microenvironment, and a small closed space is formed in a copper tailing-Aspergillus niger spherical particle, so hyphae in the particle have full contact with the copper tailings, and the mechanical fragmentation of the copper tailings is enhanced, thereby copper leaching is accelerated. The method disclosed in the invention solves difficulty solid-liquid separation of traditional stirring leaching and the problems of obstruction of contact of a leaching agent with the ores by a binder, large acid consumption, large energy and material consumption and large environment harms of traditional granulation leaching, reduces the granulation cost, shortens the technologic cycle, and is also suitable for granulating and leaching of uranium, gold, cobalt, nickel, lead, zinc and rare earth elements.

The invention discloses a sand removal treatment system for castings. The sand removal treatment system comprises a sand removal device and a water circulation system. According to the invention, thesand cleaning device is adopted to place a workpiece in the sand cleaning chamber for sand cleaning; therefore, the condition that sand dust flies in the sand cleaning process is avoided; sand and dust falling from the workpiece directly enter the sand collecting box along with water flow to be stored; sand and dust can be prevented from adhering to the surface of a workpiece, the sand removing effect of the workpiece is improved, the sand collecting box is discharged through the sand removing water discharging pipe and recycled to the high-pressure water gun for sand removing after being treated through the water circulation system; therefore, a complete sand removing system is formed, the sand removing effect and efficiency are improved, and cyclic utilization of water and sand is achieved.

The invention provides a novel road desilting and dirt removing device comprising a box body, a box door, a pull ring, a push handle, an observation window, movement wheels, a cleaning mechanism, a baffle, a bucket, a partition plate, a water pump, a cleaning pipe, a storage battery, a controller, a first electric motor, a transmission rolling shaft, a buzzer, a water inlet, a switch block, a water level sensor, a storage box and a water tank. The box door is installed on one side face of the box body. The pull ring is welded to one side face of the box body, and the push handle is welded to another side face of the box body. The cleaning mechanism is installed on one side face of the movement wheels. The water pump is arranged in the water tank. The cleaning pipe is installed on the lower side face of the water pump. The first electric motor is installed on another side face of the storage battery. The transmission rolling shaft is installed on the lower side face of the first electric motor. According to the novel road desilting and dirt removing device, the cleaning mechanism, the cleaning pipe and the transmission rolling shaft are arranged, the desilting effect is good, use is convenient, roads can be washed after being subjected to desilting, silt is not prone to fall, and the safety protective property is good.

The invention discloses a combined type ashtray which comprises an ashtray body. The ashtray body comprises an upper ashtray body and a lower ashtray body, the upper ashtray body and the lower ashtray body are mutually communicated with each other, and a plurality of ash flipping holes are formed in the outer wall of the upper ashtray body. The lower ashtray body comprises a drawer type ash storage chamber, a container is fixedly arranged on the upper surface of the upper ashtray body, the container is communicated with the upper ashtray body, and the container is provided with a switching valve. According to the combined type ashtray, the upper ashtray body is connected with the lower ashtray body, the structure is simple and use is convenient. The situations that cigarette end and cigarette ash are exposed outside and cigarette ash flying are avoided. Drawer type design of the lower ashtray body is beneficial for cleaning the ashtray body. Cigarette extinguishing liquid can be filled in the container, and a cigarette can be conveniently and fast put out through the cigarette extinguishing liquid.

The invention discloses a cutting device for profiles, which includes an operating table, a backing plate, a moving plate and a cutting wheel, and is characterized in that: the operating table is set on a support, and a fixed block, guide rail, chip discharge port, and chip collection box. The backing plate is arranged on the fixed block, and a protective cover, a cutting port, and a scale are arranged on the backing plate. A motor, a handle, a positioning blocks, rollers, and the rollers are arranged on the guide rail, the fixed block is provided with a rotating shaft, and one end of the rotating shaft is provided with a driven wheel, and the cutting wheel is arranged on the rotating shaft. In the present invention, a scale, a cutout, and a protective cover are provided on the spacer, and the length of the profile that needs to be cut can be measured through the scale and the cutout, so as to improve the accuracy of the length of the profile, and the protective cover can not only avoid the cutting process of the profile The flying of debris generated in the process can also improve the safety of the profile during the cutting process.

The invention relates to a solid-liquid mixing device. The solid-liquid mixing device comprises a mixing cavity, a liquid dispersing disc, a particle dispersing disc and a stirring mechanism, whereina liquid inlet is formed in the top wall of the mixing cavity; a discharging opening is formed in the bottom wall of the mixing cavity; a particle inlet is formed in the side wall of the mixing cavity; the liquid dispersing disc is located above the particle inlet; the particle dispersing disc is located under the particle inlet; the stirring mechanism comprises a rotating shaft, a stirring shaftand a plurality of stirring blades; the stirring blades comprise upper stirring blades and lower stirring blades; the lengths of the upper stirring blades are successively increased and the lengths ofthe lower stirring blades are successively reduced in a direction from the rotating shaft to the side wall. The solid-liquid mixing device is capable of fully wetting, so that the situation that thedust flies is avoided; the contact area between solid particles and the liquid is increased; the solid and the liquid are premixed, so that the dispersion efficiency is improved, and the phenomenon that large particle clusters are difficult to disperse or removed is avoided; the stirring blades with different lengths are used for fully stirring the mixture, so that the dispersion efficiency and the dispersion effect are improved.

The invention discloses a multi-procedure rice impurity-removal and dust-removal process. The process solves the problems that by means of a conventional impurity-removal and dust-removal process, dust is prone to raise in the impurity-removal process, and a soaking and washing mode is adopted in general in the dust-removal process, so that the situation that rice is contaminated by excessive water in the dust-removal process can be easily generated; the excessive water is contaminated, so that more time is spent in the subsequent heating and drying process step, the drying temperature needs to be increased, and once the drying temperature is increased, the quality of the rice is not easy to guarantee; meanwhile, the excessive water is contaminated, so that the situations that the rice issubjected to incomplete subsequent drying so as to enable the rice to be subjected to moisture and mildew and deterioration appear easily, and the quality of the rice is greatly influenced; and meanwhile, a large amount of water requires to be used for dust removal in the traditional process, so that the water resource is wasted. The multi-procedure rice impurity-removal and dust-removal process is carried out through matching of impurity-removal and dust-removal equipment and comprises the specific steps of pre-ash-dust-removal treatment, water washing treatment and drying treatment.

The invention discloses a dryer with a fluff removing function for cotton and wool cloth. The dryer comprises a shell, a drying chamber and a fluff removing chamber are sequentially arranged in the shell from left to right, an air suction cavity is formed in the shell and located above the fluff removing chamber, and a power generation cavity is formed in the shell and located at the left side ofthe air suction cavity; a drying mechanism is further arranged, the drying mechanism comprises an air heater arranged at the right end of the shell, an air outlet of the air heater is communicated with the air suction cavity, two hollow plates are symmetrically arranged in the drying chamber, and the air suction cavity is communicated with the hollow plate located at the lower portion through an air outlet pipe; and the upper end of the hollow plate located at the upper portion is communicated with the air outlet pipe through a vertical pipe. According to the dryer, double-sided drying can beconducted on the cotton cloth in the drying process, the cotton cloth drying efficiency is improved, meanwhile, fluff on the dried cotton cloth is scraped off to be collected, and therefore subsequentprocessing of the cotton cloth is facilitated.

The present invention discloses a forage grass crushing device for animal husbandry. The forage grass crushing device for animal husbandry comprises a box body, a feeding pipe is inserted into an outer wall of a top wall of the box body, a third motor is arranged on an outer wall of one side of the box body, connecting columns are arranged at one end of an output shaft of the third motor, crushingteeth which are annularly distributed at equal intervals are arranged on outer walls of circumferences of the connecting columns, a second motor is arranged on an outer wall of one side of the box body, a threaded lead screw is fixedly connected to an outer wall of one end of an output shaft of the second motor, a threaded sleeve sleeves an outer wall of a circumference of the threaded lead screw, a mounting plate is arranged on an outer wall of a bottom part of the threaded sleeve, and a first motor is arranged on an outer wall of a bottom part of the mounting plate. After forage grass is added into the box body through the feeding pipe, crushing teeth on outer walls of the two connecting columns are engaged with each other to fully crush the forage grass, at the same time, through-holesformed in outer walls of the crushing teeth can enable the forage grass to be inserted into the through-holes, and a crushing effect of the device on the forage grass is improved.

The invention discloses a blackboard eraser with a dust collection effect, and relates to the technical field of teaching appliances. The blackboard eraser comprises a shell, wherein the two ends of the shell are rotationally connected with a rolling brush shaft, belt wheel shafts and roller shafts, and are connected with two fixed shafts side by side; the two ends of the fixed shafts are rotationally connected with worms; driven wheels are fixed at one ends of the worms; an electrostatic adsorption plate is fixed on the inner wall of the shell; the two outer walls of the shell are connected with dust collection boxes; the rolling brush shaft is connected with a rolling brush; rolling brush worm wheels are fixed at the two ends of the rolling brush shaft; the belt wheel shafts are in transmission connection with the rolling brush shaft; the two belt wheel shafts are connected through two transmission belts; a scraping plate is connected between the two transmission belts; and rollers and driving wheels are fixed at the two ends of the roller shafts and are used for driving the rolling brush shaft to rotate. According to the blackboard eraser, dust adsorption is realized through theelectrostatic adsorption plate, so that the situation of dust flying is effectively avoided; and the dust adsorbed on the surface of the electrostatic adsorption plate is scraped through the scrapingplate, and is collected by utilizing the dust collection boxes, so that the influence of the dust on the body health of a human body is effectively avoided.

The invention discloses an external surface wire drawing treatment device for aluminum product processing and production, and relates to the technical field of aluminum product external surface wire drawing. The external surface wire drawing treatment device comprises a bottom plate, wherein a second side frame and a first side frame are welded on the top outer surface of the bottom plate, a top plate is welded on the tops of the second side frame and the first side frame, a motor support frame, a positioning block and a clamping block are welded on the top outer surface of the top plate, a second motor is welded on the top of the motor support frame, a rotating shaft is rotationally arranged on the outer wall of one side of the clamping block, the free end of the rotating shaft penetratesthrough the positioning block and is welded with an output shaft of the second motor, a first winding roller and a second winding roller are welded on the outer surface of the rotating shaft, and sliding grooves are formed in the second side frame and the first side frame. The external surface wire drawing treatment device for aluminum product processing and production can perform wire drawing work on aluminum products with different thicknesses, and improves the fault tolerance rate.

The invention provides an automatic fly ash transfer device suitable for a small-sized coal-fired power plant, and belongs to the technical field of fly ash transfer devices. The device comprises a base and a charging piece, a rotating shaft is rotationally connected to the base, the rotating shaft is fixedly provided with an intermittent piece, a rotating disc and a conversion piece in sequence and in a sleeving mode, the side surface of a shaft of the rotating disc is uniformly provided with grooves, movable grooves are uniformly formed in the front surface of the rotating disc, stabilizingmechanisms are movably arranged in the movable grooves, and a centrifugal driving mechanism is arranged on the conversion piece. According to the automatic fly ash transfer device suitable for the small-sized coal-fired power plant, the rotating disc is used for driving the charging piece through the grooves on the rotating disc, meanwhile, the stabilizing mechanisms are combined to automaticallycomplete the timed and quantitative discharge and transfer of fly ash, so that the flying situation of the fly ash caused by a large amount of movement of the fly ash is effectively reduced, the harmof the fly ash to the health of people and the pollution to the environment are greatly reduced, and the device is very suitable for small-sized coal-fired power plants and similar fly ash generationplaces.

The invention provides a movable blackboard eraser and a blackboard eraser box matched with the movable blackboard eraser for dust removal, and relates to the field of blackboard erasers. The blackboard eraser box comprises a blackboard eraser shell, a blackboard eraser box body, a beating dust removal mechanism for beating chalk dust on the blackboard eraser and a closed dust removal mechanism for removing dust in a closed environment, wherein the surface of the blackboard eraser shell is rectangular, the upper side and the lower side of the blackboard eraser shell are mouth-shaped, the beating dust removal mechanism is arranged on the blackboard eraser shell, and the surface of the blackboard eraser box body is rectangular. According to the movable blackboard eraser and the blackboard eraser box matched with the movable blackboard eraser for dust removal, a special structure is designed according to the situation that clothes are easily polluted and the dust on the surface is difficult to remove in the using process of an existing blackboard eraser, the special structure can clean the blackboard eraser both when the blackboard is not in use and in use, and the surface of blackboard eraser cotton can be replaced for use, so that the problems that the general blackboard eraser is easily polluted by a large amount of dust when in use and needs to be frequently flapped to removethe dust, powders are prone to flying, consequently, the teaching environment is influenced, and cuffs are dirty are solved.

The invention discloses an environment-friendly and efficient production line for mask processing. The environment-friendly and efficient production line comprises a dust collector, a supporting rod, an air cylinder, a mounting box body, a first moving plate, a dust collection cover, a top plate, a supporting plate, a first limiting disc, a mounting frame, a rotating cylinder, a second limiting disc, a first connecting rod, a baffle, a hydraulic cylinder, a fixing frame, a motor, a bottom plate, a first triangular plate, a second triangular plate, a mounting flange, a push plate, a second connecting rod, a second moving plate, a connecting block, a sliding block and a fixing column. According to the environment-friendly and efficient production line, fine scraps generated in the discharging process of a roll material are collected and treated through the installed dust collector and the installed dust collection cover, the situation that the fine scraps fly is avoided, and environmental protection is facilitated; and meanwhile, through movement of the second moving plate, a protrusion arranged on the second moving plate limits and fixes a central paper roll in the roll material, so that the roll material is fixed, a traditional mode of fixing the roll material is changed, and the production efficiency of a mask is improved.

The invention discloses a learning device suitable for business administration major learning, and particularly relates to the field of business administration majors. The learning device comprises a blackboard body, a blackboard eraser and a dust accumulation box, the blackboard eraser is movably arranged at one end of one side of the blackboard body, one side of the dust accumulation box is movably arranged on one side of the blackboard body, a fixing plate is fixedly arranged on one side of the blackboard body, and through grooves are formed in the two ends of one side of the blackboard body. A motor is fixedly arranged at one end of the fixing plate, the end of an output shaft of the motor movably penetrates through one end of the fixing plate, a threaded rod is fixedly arranged at the end of the output shaft of the motor, one end of the threaded rod is rotatably inserted into one end of the fixing plate, the threaded rod is sleeved with a first sliding block in a threaded mode, and a connecting plate is fixedly arranged on one side of the first sliding block; and the connecting plate is attached to one side of the blackboard body, and one end of each of two fixing blocks is movably inserted into one of the two through grooves correspondingly. The four vertexes of the blackboard body are wrapped by sponge mats, so that the situation of collision is prevented.