63results about How to "Breakable" patented technology

The invention relates to a folding screen, a manufacturing method thereof, and a mobile terminal. The folding screen comprises a flexible display panel and a flexible protective film; the flexible display panel is provided with a display face, and the flexible protective film comprises flexible glass and a protective layer; the flexible glass covers the side, where the display face is located, ofthe flexible display panel, and the elastic modulus of the flexible glass is smaller than or equal to 72 Gpa; and the protective layer covers the side, back on to the display face, of the flexible glass, and the elastic modulus of the protective layer is smaller than or equal to 10 Gpa. According to the folding screen, the manufacturing method thereof, and the mobile terminal, the flexible glass provides good scratch-resisting performance, and thus when the flexible glass covers the display face of the flexible display panel of the folding screen, the side, where the display face is located, of the flexible display panel can be effectively prevented from being scratched; and the flexible glass is protected through the protective layer, and thus the flexible glass is not prone to being broken so as to guarantee that the flexible glass stably protects the flexible display panel.

The invention discloses a gun-type safety glass hammer special for automobiles, comprising a known gun body, a gun barrel and a trigger. The gun barrel is provided with a spring and a tension rod type firing pin inside. The front end of the spring is provided with a bumper. The front end of the tension rod type firing pin is sharp and the rear end thereof is connected with a handle. When the hammer is used, the handle is pulled, so that the tension rod type firing pin retreats, the spring is simultaneously compressed and the bumper is pressed down to enable the hammer to be in the state of later use. If accidents happen, the bumper is pushed up to open a safety device, the gunpoint is directed at the glass and the trigger is pulled, and the tension rod type firing pin easily breaks the glass into pieces under the spring force by virtue of own sharp front end, thus achieving the aim of rapid escape and self-rescue.

The invention discloses safety equipment used in a vehicle, in particular to a safety hammer, comprising a hammer head, a hammer body, a main spring, a hammer tail, a trigger and a hammer handle, wherein the hammer head is a hard alloy with a pointed end; the hammer tail is a massive metal block; and the hammer body is in a metal drum shape. When in use, a user firstly handholds the hammer handle, stretches the hammer tail backwards, and waves the hammer handle to hammer glass, therefore, the trigger is triggered, and the main spring extends to push the hammer head to strike the car window glass surface and form resultant force with impact force generated in waving the hammer handle so as to break the car window glass into pieces. The safety hammer in the invention has the advantages of simple structure, safe and convenient use and obvious effect, and can be widely used in occasions such as vehicles, ships and the like.

The invention discloses an emergency hammer. The emergency hammer comprises a first hammer head (1), a hammer body (2) and a handle (3). The first hammer head (1) is arranged at one end of the hammer body (2). A connecting rod (4) is arranged between the hammer body (2) and the handle (3). One end of the connecting rod (4) is fixed with the hammer body (2), and the other end of the connecting rod (4) is hinged with the handle (4). The handle (3) is further provided with a rigid pre-striking piece (5). The end of the rigid pre-striking piece (5), which is far from the hammer body (2), is connected with the handle (3). Accoring to the emergency hammer, users with small power can break the window glass easily.

The invention discloses a dust-removing type road roller for construction engineering. The dust-removing type road roller for construction engineering comprises a machine body, and a front machine wheel and a back machine wheel which are arranged below the machine body and are consistent in size, wherein the back machine wheel is hollowly cylindrical; an end cover fixed at a port of the back machine wheel is arranged on each of the two sides of the back machine wheel; a machine shaft of the back machine wheel penetrates through the centers of the two end covers; an eccentric block is arranged in the back machine wheel and fixed on the machine shaft; a dust remover is arranged on the back end face of the machine body, and comprises an air pump, a dust storage box and a suction nozzle; the suction nozzle is aligned with the back machine wheel. The dust-removing type road roller for construction engineering has the beneficial effects that the dust remover is arranged at the upper end of the back machine wheel and used for removing dust rammed by the back machine wheel, so that the influence of the dust on workers is avoided.

The invention discloses a preparation system and method of pervious concrete and belongs to the technical field of preparation and performance improvement of the pervious concrete. The preparation system comprises a forming device, a compaction device and a demolding device. The forming device is applied to forming of the pervious concrete. The compaction device is applied to compaction of the pervious concrete. The demolding device is applied to demolding of the pervious concrete. The preparation method comprises the steps of use of the preparation system and adjusting of the number of compaction times and the compaction height, so that the comprehensive performance of pervious concrete test blocks is improved. The preparation system and method have the beneficial effects that through a forming method and the preparation system, disadvantages of conventional forming methods ( vibration, inserting tamping and static pressing) are overcome, the strength of the pervious concrete is improved, the quantitative standard is provided for pervious concrete laboratory forming, technical and data support is further provided for on-site construction, thus the on-site construction technology is optimized, and the applicability and universality of the pervious concrete are improved.

Disclosed is an ejection type window breaking device which is high in starting speed, high in window breaking success rate, not easy to lose, small in occupied space and safe and stable. The ejection type window breaking device is characterized in that a ball handle is hinged to the upper end of a screw through threads; the screw is connected with the front end of a rotating arm through threads in a rotating mode; a nut sleeves the screw and is located between the rotating arm and the ball handle; a rivet is embedded at the lower end of the screw; a pointed end of the rivet abuts against the glass surface of an automobile window; the rear end of the rotating arm and a support are fixed through a pin; the pin penetrates the support, a torsional spring and the rotating arm; a safety pin penetrates the support and the rotating arm; an upper supporting leg of the torsional spring is clamped on the inner wall of the rotating arm; a lower supporting leg of the torsional spring is clamped in a groove formed in the support; the lower end of the support is fixed on a triangular base; a socket head cap screw is connected with the support and the triangular base through threads; the bottom of the socket head cap screw is in contact with the rotating arm; the triangular base is fixed on an automatic window frame through screws.

The invention relates to an experimental operation platform based on multiple degrees of freedom. The experimental operation platform comprises a support platform; an adjusting device is arranged on the support platform; an experimental platform is arranged on the adjusting device; the experimental platform comprises a loading platform arranged on a rotating plate through a pin shaft; and a reaction mechanism, a conveying mechanism and a collecting mechanism are successively arranged on the loading platform from back to front. The invention can solve the following problems of the existing experimental operation platform in a use process: a) not all the participants are enabled to observe the whole process of an experiment when too many people take part in experiment operation by using theexisting operation platform, and the participants need to observe in batches in order to guarantee that all the participants can master the experimental process, or when the experimental process is repeated for researching the experiment data from different angles, angle inclining needs to be manually controlled, and therefore, the accuracy is low and the precision of experimental data is influenced; and b) all the experimental instruments need to be fixed manually, and therefore the stability is low and the operation of taking experimental instruments is inconvenient.

The invention discloses a sapphire mobile phone protecting film, which is characterized in that the thickness of the sapphire mobile phone protecting film is 0.175-0.18mm, and the sapphire mobile phone protection film is composed of a sapphire substrate, acrylic optical cement and a silica gel layer. The processing technology of the sapphire mobile phone protecting film comprises the steps of crystal ingot selecting, orienting, cutting, head and tail removing, surface grinding, slicing, coarse grinding, shape processing, cleaning, annealing, double-side fine grinding, cleaning, double-side polishing, cleaning and gluing, wherein the step of orienting refers that a side-A is accurately positioned by using a crystal orientation instrument; the step of slicing refers that a cutting program of a multi-line cutting machine is set to slow down first and then accelerate; in the step of shape processing, a general outline is cut out by laser before a listening hole and function key holes are processed by using a fine carving machine; in the step of cleaning, a surfactant, water, hydrochloric acid plus hydrogen peroxide and water are used in sequence, and drying is performed by being matched with a special drying machine. According to the processing technology, a sapphire mobile phone protecting film which has no surface defects and is wear resistant, high in light transmittance and high in strength can be acquired, the product yield is improved, the cost is enabled to be reduced, and large-scale stable production is promoted.

The invention discloses an antitheft base for a vehicle safety hammer, which comprises a box-shaped base and a safety protective cover, wherein the box-shaped base is embedded into a carriage to form a whole; a mechanism for clamping the safety hammer is arranged in the box-shaped base; and the safety protective cover is arranged on the outer surface of the box-shaped base. When the antitheft base is used, the safety hammer is placed on the mechanism for clamping the safety hammer in the box-shaped base at normal time; as the safety protective cover is arranged on the outside surface of the box-shaped base, the safety hammer can be effectively protected from being lost or stolen; and once there is an emergency, the safety protective cover, which is made of plastic and has a crossed and hollowed center, can be knocked by hand into pieces easily, so that the safety hammer can be taken from the mechanism for clamping the safety hammer in the box-shaped base for use. In addition, the antitheft base has the advantages of simple structure, convenience for use, low cost, convenience for promotion, and the like.

The invention discloses a color-plating and laser-etching high-light glass-imitating and ceramic treatment method of a mobile phone plastic exterior. The color-plating and laser-etching high-light glass-imitating and ceramic treatment method comprises the following steps: providing a plastic substrate; forming a UV (Ultraviolet) color paint layer on the surface of the plastic substrate; forming afirst vacuum film plating layer on the surface of a first transparent primer layer; forming a transparent protection layer on the surface of the first vacuum film plating layer; removing a vacuum plated film on a region, which needs to display the firs primer layer, on the vacuum film plating layer through laser etching; washing the plastic substrate subjected to the laser etching; forming a UV transparent electroplating bottom layer on a washed plastic surface; forming a second vacuum film plating layer on the surface of a second color paint layer and forming a middle paint layer on the surface of the second vacuum film plating layer; forming a finish paint layer on the surface of the middle paint layer. According to the color-plating and laser-etching high-light glass-imitating and ceramic treatment method disclosed by the invention, ceramic can be replaced to a certain extent by adopting a PC (Polycarbonate) plastic electroplating mirror surface high-light and glass-imitating technology; a glass exterior effect also has more colors to select and the like and also has an anti-falling function.

In order to solve the technical problem, the invention provides a fixed window breaking escape device which is high in starting speed, high in window breaking success rate, not easy to lose, small in floor area, safe and stable. The device is characterized in that a spherical handle is rotationally connected with the upper end of a screw rod via screw threads; the screw rod is rotationally connected with the front end of a rotating arm via screw threads, and sleeved with a nut; the nut is located between the rotating arm and the spherical handle; a rivet is embedded into the lower end of the screw rod; the tip of the rivet pushes against a window glass surface; the rear end of the rotating arm is fixed with a support via a pin; the pin penetrates through the support, a torsional spring and the rotating arm; a safety pin penetrates through the support and the rotating arm; an upper supporting leg of the torsional spring is clamped on an inner wall of the rotating arm; a lower supporting leg of the torsional spring is clamped in a groove in the support; the lower end of the support is fixed on a rectangular base; an inner hexagon screw is connected with the support and the rectangular base via screw threads; the bottom of the inner hexagon screw is contacted with the rotating arm; and the rectangular base is fixed on a window frame via screws.

The invention relates to the technical field of battery fabrication, in particular to a horizontal battery wax sealing method. The horizontal battery wax sealing method comprises the following steps of 1, material preparation; 2, wax melting; 3, wax sealing equipment arrangement; 4, acid pouring; 5, wax sealing; and 6, subsequent processing. By the scheme, wax sealing can be immediately performedafter acid pouring is completed, a pipe mouth of an acid pouring pipe also can be sealed by wax, and sulfuric acid dropping is prevented.

The invention discloses a striking type automobile window breaker emergency umbrella handle. An umbrella rack connecting bin is arranged at the upper end of the striking type window breaker emergency umbrella handle; a window breaker mounting bin is arranged at the lower or on one side of the umbrella rack connecting bin; a striking needle which has a conical structure is arranged in the window breaker mounting bin; a striking needle clamping piece is arranged at one end of the striking needle; a striking needle spring sleeves one side of the striking needle clamping piece; a striking needle clamping head is arranged at the other end of the striking needle and is positioned on a clamping plate at the rear of the window breaker mounting bin; a striking needle pushing piece is arranged at the front end of the striking needle clamping piece; a pushing piece spring is arranged at one end of the striking needle pushing piece; a separating plate for separating the striking needle clamping piece from the striking needle pushing piece is arranged on one side of the inner wall of the window breaker mounting bin; and a striking needle outlet hole is formed in one end of the striking needle pushing piece. The umbrella handle is reasonable in structure, easy to operate, convenient to use and easy to carry.

The invention discloses an easy-grinding road roller for constructional engineering. The easy-grinding road roller for constructional engineering comprises a roller body, a front roller wheel and a rear roller wheel, wherein the front roller wheel and the rear roller wheel are arranged below the roller body and are identical in size. The rear roller wheel is in a hollow cylinder shape. The two sides of the rear roller wheel are each provided with an end cover fixed to an end opening of the rear roller wheel. A crankshaft of the rear roller wheel penetrates the centers of the two end covers. An eccentric block is arranged in the rear roller wheel and fixed to the crankshaft. The crankshaft comprises end shafts at the two ends and a center shaft in the middle. The end shafts are fixedly connected with the end covers. The end covers are clamped to the rear roller wheel. The end shafts are clamped to the center shaft. The eccentric block is semicircular. The road roller further comprises a balance block matched with the eccentric block. A complete round ring is composed of the eccentric block and the balance block, the eccentric block and the balance block are detachably connected, and the front roller wheel is full of protrusions. The easy-grinding road roller for constructional engineering has the beneficial effects that the wheel face of the front roller wheel is full of the protrusions, large mud blocks can be easy jacked broken, and the climbing ability of the road roller is enhanced as well.

The invention discloses a fluidized bed reactor and an application method thereof, and a hydrocarbon oil desulfurization method. The fluidized bed reactor comprises a reaction section (3) at the lowerportion and a settling section at the upper portion, wherein the settling section is divided into a settling section upper space and a settling section lower space by a separation component (14), theseparation component (14) is composed of a cone-like body and a discharging pipe (17), the cone skirt edge on the top is seamlessly connected with the reactor cylinder, a fluid guide structure (9) isarranged in the settling section upper space, penetrates through the separation component (14) through a conveying pipe (8) and is opened in the settling section upper space, the bottom of the discharging pipe (17) of the separation component (14) is opened in the reaction section (3), and a gas outlet is formed in the top of the settling section upper space through a filter. According to the fluidized bed reactor provided by the invention, separated catalyst fine powder particles can be timely conveyed to the dense-phase bed layer of a reactor, so that the suspension amount of the catalyst particles in the settling zone of the fluidized bed reactor is remarkably reduced, and the operation period of the device is prolonged.

The invention provides a special drill bit for pile foundation construction hole forming under complex geological conditions, and relates to the technical field of pile foundation construction. The special drill bit for pile foundation construction hole forming under the complex geological conditions comprises a drill rod, a spiral blade is fixedly arranged on the outer wall of the lower end of the drill rod, a mounting seat is fixedly connected with the lower end of the drill rod, an impact drill bit is fixedly arranged in the mounting seat, a positioning sleeve fixedly sleeves the outer wall of the upper end of the drill rod, fixing rings are fixedly arranged at the upper end and the lower end of the positioning sleeve, four connecting rods are fixedly connected to the outer walls of the two fixing rings, and auxiliary protective rings are fixedly connected to the ends, away from the fixing rings, of the four connecting rods. According to the special drill bit for pile foundation construction hole forming under the complex geological conditions, the drilling work is quicker, the impact drilling efficiency on hard rocks is higher, drilling slag generated during drilling can be conveniently sucked out from the top of the impact rod and discharged, and the drill bit can adapt to construction of pile foundations under the complex geological conditions.

Disclosed is a portable emergency evacuation tool in a motor vehicle. The portable emergency evacuation tool is high in starting speed, high in window breaking success rate, small in size, convenient to carry and safe and stable. The portable emergency evacuation tool is formed by a ball handle, a cylinder cover, a safety pin, a screw, a screw spike, a cylinder, a pressure spring, a spring support and a rivet and is characterized in that the ball handle is connected with the upper end of the screw through threads; the screw penetrates the cylinder cover and the pressure spring; the cylinder cover and the cylinder are fixed through the screw spike; the lower end of the screw and the spring support are fixed; the river is embedded at the bottom of the screw; the bottom of the cylinder is provided with a circular hole; a nail point of the rivet extends out of the circular hole; the safety pin penetrates the cylinder cover and the screw.

The invention discloses a screening machine with a protective function on megestrol acetate tablets. The screening machine comprises a machine body, a screening roller, biting teeth and a connecting shaft; a damping pedestal is arranged at the bottom of the machine body; a vibrating motor is arranged in the machine body; a connecting spring is arranged on one side of the vibrating motor; a first screening chamber is arranged above the connecting spring; a first discharging port is formed in one side of the first screening chamber; a clamping block is arranged above the first screening chamber;a screen penetrates into the clamping block; a second screening chamber is arranged above the screen; a supporting block is arranged above one side of the second screening chamber; a second discharging port is formed in one side of the supporting block; the screening roller is arranged above the supporting block; and a handle is arranged on one side of the screening roller. The screening machinewith the protective function on the megestrol acetate tablets is provided with the screen, and the screen can screen out tiny tablets or powder, so that the tablets can be classified well and the waste tablets can be classified and recovered well.

The invention relates to glass, in particular to fragile safety glass consisting of armoured glass and a V-shaped groove. The armoured glass is 5mm in thickness; the vertex angle of the cross sectionof the V-shaped groove is no more than 60 degrees; corresponding V-shaped grooves are arranged on the same position of double sides of the armoured glass; the distance between the vertexes of the twoV-shaped grooves at double sides of the armoured glass is no less than 2.5 mm; the V-shaped groove forms a closed star shape with an acute angle; and the star shape formed by the V-shaped groove is located at the left and right corners of the armoured glass. The invention greatly improves the reliability of the escape passage of windows.

The invention discloses a fixed in-vehicle emergency escape device, and the technical problem to be solved by the invention is to provide the fixed in-vehicle emergency escape device which is fast in starting speed, high in window break success rate, not easy to lose, small in occupied space, and safe and stable. The fixed in-vehicle emergency escape device is characterized in that a ball handle is screwed at the upper end of a screw through threads; the screw is screwed at the front end of a rotating arm through the threads; a nut is sheathed on the screw, and is located between the rotating arm and the ball handle; a double rivet is embedded into the lower end of the screw; the tip of the double rivet is in contact with a window glass face; the rear end of the rotating arm is fixed to a support through a dowel; the dowel passes through the support, a torsional spring and the rotating arm; a safety pin passes through the support and the rotating arm; an upper stand bar of the torsional spring is clamped on the inner wall of the rotating arm; a lower stand bar of the torsional spring is clamped in a groove in the support; the lower end of the support is fixedly arranged on a trapezoidal base; a socket head cap screw is connected with the support and the trapezoidal base through the threads; the bottom part of the socket head cap screw is in contact with the rotating arm; the trapezoidal base is fixedly arranged on a car window frame through screw spikes.

The invention provides a glass cup resonance breaking demonstration instrument which comprises a box, a glass cup fixator, a sound collecting cylinder and a sound wave device, wherein the box is cuboid and has four side surfaces, and one side surface is a transparent surface; a hard board layer and a sound absorption layer fixedly arranged on the hard board layer are arranged on a protecting surface; a glass cup fixator is fixedly arranged on the bottom surface of the box; the sound wave device comprises a sound generator, a power amplifier and a loudspeaker which are connected sequentially; a loudspeaker fixing site and a sound collecting cylinder fixing site are arranged in the box. The glass cup resonance breaking demonstration instrument is applied to various glass cups and can guide sound waves into a cup body of the glass cup to realize energy concentration of sound waves, so that the glass cup is easily broken; lower noise is produced in the teaching demonstration process, fragments of the glass cup are prevented from flying out and injuring people, and safety of a teacher can be effectively protected; the sound wave device is only provided with one loudspeaker.

The invention relates to the technical field of safety hammers and particularly relates to a life-saving hammer. The life-saving hammer comprises a frame-shaped hammer frame, wherein a hammer head is arranged at the front part of the lower end of the frame-shaped hammer frame; a device groove is formed in the rear part of the lower end of the frame-shaped hammer frame; a handle is hinged to the device groove; a blade is embedded into the rear part of the upper end of the frame-shaped hammer frame; a glass cutter head is arranged on the front part of the upper end of the frame-shaped hammer frame; a hanging frame is arranged on an inner wall of the frame-shaped hammer frame. The frame-shaped hammer frame can be conveniently hung on the position of the handle of the inner wall of an automobile door; the hammer head and the glass cutter head are arranged on the frame-shaped hammer frame, so that a certain region is drawn on glass by the glass cutter head before the glass is knocked by using the hammer head, and the hammer head is aligned with the region and knocks the region and the glass is easy to crush; furthermore, the handle in the device groove can be used for intensifying the knocking intensity, and a safety belt can be cut off by the blade, so that the life-saving hammer is convenient to hang and use.

The invention relates to the technical field of needle mushroom industrialized cultivation equipment, in particular to a high-efficiency needle mushroom harvesting and waste recycling system and method. The high-efficiency needle mushroom harvesting and waste recycling system comprises a harvesting room, a recycling room and a cultivation bottle set; a needle mushroom harvesting device is arrangedin the harvesting room, and a waste recycling device is arranged in the recycling room; the needle mushroom harvesting device is connected with the waste recycling device through a cultivation bottleconveyor; the needle mushroom harvesting device comprises a finished product needle mushroom conveyor, a needle mushroom root conveyor, a harvesting device rack, a cutting device and a needle mushroom root taking-out device; the waste recycling device comprises a pneumatic cultivation bottle cleaning device and a waste material conveyor; the pneumatic cultivation bottle cleaning device comprisesa recycling device rack, a cultivation bottle set turnover device, a gas spraying device and a cultivation bottle rotation driving device. The high-efficiency needle mushroom harvesting and waste recycling system can reduce the damage to the quality of needle mushrooms in the harvesting process, the production efficiency is improved, a gas injection pipe is prevented from being damaged, and the cleaning effect is improved.

The invention discloses a safety life saving apparatus with a good window breaking effect, which comprises a cylindrical life saving apparatus body, a cylindrical groove is formed in the center of oneside of the life saving apparatus body, a fixed box is fixedly connected to the inner groove wall of the cylindrical groove, and a piston plate is connected into the fixed box in a sealing and sliding manner; and a sliding rod is vertically fixed to the side, close to the opening of the cylindrical groove, of the piston plate, the end, away from the piston plate, of the sliding rod penetrates through the fixing box and is welded with a conical head, and a liquid storage cavity is formed in the middle of the life saving device body. The safety life saving apparatus has the advantages that: thepiezoelectric ceramic outputs direct current to the conductor ring, so that two contacts on the conductor ring respectively absorb heat and release heat, and the two heat conducting plates respectively heat and cool glass on two sides of the cylindrical groove by utilizing heat absorption of the first contact and heat release of the second contact, so that a temperature difference is formed between the glass window and the conductor ring; therefore, the glass can be crushed more easily, and the success rate of window breaking is further improved.

A preparation method of nano titania for air purification comprises steps as follows: titanium iron ore is selected and processed into powder; concentrated sulfuric acid is added to the powdery titanium iron ore for acidolysis; still standing is performed after the ore is dissolved through acidolysis, slag is removed through filtration, and a primary filtered titanium liquid A is obtained; the titanium liquid A is cooled to the normal temperature and crystalized to separate iron dichloride tetrahydrate, and a secondary filtered titanium liquid B is obtained through filtration; an oxidizing agent is added to the secondary filtered titanium liquid B, and a solution D is obtained; cerium nitrate is added to the solution D, sodium hydroxide is added, the PH is adjusted to be alkaline, and sufficient mixing is performed; activated carbon fiber is added, soaking is performed under the ultrasonic condition, and a mixed liquid D is obtained; the mixed liquid D is aired, calcined and ground into powder, and cerium-doped nano titania powder is obtained. The nano titania is small in particle size and good in dispersity, the quantum effect of the nano titania is improved, and the air purification effect is improved; the reaction process is environmentally friendly and pollution-free.

The invention discloses a method for using a transmission line deicing machine. The deicing machine includes a body, a traveling mechanism, a fastening mechanism, a driving motor of the traveling mechanism, a deicing mechanism, a driving motor of the deicing mechanism and a control system of the deicing machine. The driving motor uses a positive and negative servo motor, and the driving motor of the deicing mechanism uses a positive and negative servo motor. The control system of the deicing machine includes a remote control setting terminal. The rotation speed and the number of rotations of the driving motor of the ice mechanism, as the thickness of the ice increases, the speed of the driving motor of the deicing mechanism is accelerated, the frequency of forward and reverse rotation is increased, and the speed of the driving motor is slowed down at the same time, the deicing head is stuck After stopping, set the traveling mechanism to drive the motor to reverse, withdraw the deicing head from the ice, resume the rotation and move forward in the forward direction.

The invention discloses a fluidized bed reactor and application thereof, and a hydrocarbon oil desulfurization method. The fluidized bed reactor comprises a reaction section (3) at the lower portion and a settling section at the upper portion, wherein the settling section is divided into a settling section upper space and a settling section lower space by a separation component (14), the separation component (14) is composed of a cone-like body and a discharging pipe (17), the cone skirt edge on the top is seamlessly connected with the reactor wall, a fluid guide structure (9) is arranged in the settling section upper space, penetrates through the separation component (14) through a conveying pipe (8) and is opened in the settling section upper space, the bottom of the discharging pipe (17) of the separation component (14) is opened in the reaction section (3), and a gas outlet is formed in the top of the settling section upper space through a filter. According to the fluidized bed reactor provided by the invention, separated catalyst fine powder particles can be timely conveyed to the dense-phase bed layer of a reactor, so that the suspension amount of the catalyst particles in the settling zone of the fluidized bed reactor is remarkably reduced, and the operation period of the device is prolonged.

The invention discloses a novel magnetic type snow shoveling device. The device comprises a vehicle body; the lower wall of the vehicle body is fixedly connected with two baffles; the opposite side walls of the two baffles are jointly and rotationally connected with a driving shaft; two driving wheels are fixedly connected to the side wall of the driving shaft; a drive motor is fixedly connected to the bottom in the vehicle body; an output shaft of the drive motor is fixedly connected with a drive shaft; the drive shaft is in transmission connection with the driving shaft through a belt; a mounting plate is fixedly connected to the lower wall of the vehicle body; a snow shovel is fixedly connected to the lower wall of the mounting plate; a crushing mechanism is arranged on the vehicle bodyand comprises a rotating block fixedly connected to the side wall of the drive shaft; and a plurality of permanent magnet plates are fixedly embedded in the upper side wall and the lower side wall ofthe rotating block. According to the invention, ice layers on the road surface can be crushed and shoveled to the two sides of the road, the ice layers on the road surface are prevented from causingdanger to passing vehicles and pedestrians, the time and energy of people are greatly saved, and the working efficiency is improved.

The invention provides a metal powder conveying device and selective laser melting equipment, the metal powder conveying device comprises a funnel, a conveying rod and a feeding screw rod, a mounting cavity is formed in the conveying rod, a fixing frame is movably arranged in the mounting cavity, a filter screen plate is arranged in the fixing frame, the filter screen plate and the inner wall of a mounting groove are fixedly connected with first elastic blocks, and the first elastic blocks are fixedly connected with the conveying rod. And an impacting assembly used for impacting the filter screen plate is arranged in the fixing frame, a heating groove is formed in the fixing frame, a heating wire is fixedly arranged in the heating groove, and the heating groove communicates with the impacting cavity through a first air channel. In the using process, in the downward moving process of the fixing frame, a clamping ball and a clamping groove are matched to enable a filter screen plate to vibrate, meanwhile, the filter screen plate is impacted through an impact assembly, hot air is blown to caked metal powder, and then an extrusion rod is matched to extrude powder falling from filter screen holes; and the caked metal powder is crushed very thoroughly.