54results about How to "Achieve the purpose of delivery" patented technology

The invention relates to a concrete delivering method in the high-slope and big-drop terrain. The method comprises the following steps: the parameters of the length, the elevation, the slope angle and the scar property of the horizontal section of a concrete placement area are comprehensively mastered through field terrain investigation; concrete is horizontally delivered through a conveyer belt; when the slope angle is larger than 40 degrees and smaller than 53 degrees, the delivering is realized through a negative pressure sliding chute; when the slope angle is larger than 53 degrees and smaller than 90 degrees, the delivering is realized through the combination of a sliding cylinder and a slowly decreasing and mixing machine. The method effectively combines the economic and practical delivering means according to local conditions, and the concrete delivering purpose is achieved, thereby, under the precondition of ensuring the concrete delivering quality, the cost is reduced further. The method is particularly applicable to the high-slope and big-drop concrete delivering in valley and mountain under the limited field and road conditions.

The invention relates to a dispenser and particularly relates to an automatic dispenser. The automatic dispenser comprises a dispenser main body, a switch control device and a supporting device, wherein the switch control device and the supporting device are respectively mounted on two sides of the dispenser main body; the switch control device comprises a steering engine, a cross bar and a steering engine switch; the supporting device comprises a supporting rod, a supporting rod fixing part and a rocker arm; the steering engine is mounted on the dispenser main body; the cross bar is hinged to the dispenser main body; one end of the cross bar is propped against the steering engine switch; one end of the supporting rod is hinged to the supporting rod fixing part mounted on the dispenser main body, and a torsion spring is arranged at the hinged part; the rocker arm is arranged at the other end of the supporting rod; the other end of the cross bar is flexibly connected with the other end of the supporting rod; a dispensing object to be dispensed is positioned in the dispenser main body and is supported by the dispenser main body and the supporting rod; a fuse of the dispenser is jacked by the rocker arm. The automatic dispenser disclosed by the invention has the advantages of dispensing automation, simple structure, convenience in operation, good maneuverability, high practicality, safety and reliability.

The invention relates to a flocculant dispenser which comprises at least two dispensing cavities. A piston being in reciprocating motion to push different flocculants is arranged in each dispensing cavity, and an output end of a motor drives different pistons for reciprocating motion during forward rotation and backward rotation. The invention further relates to a flocculation washer which comprises a flocculation bucket and two liquid storage boxes respectively containing a flocculant A and a flocculant B, and the liquid storage boxes are communicated with the flocculation bucket through theflocculant dispenser to dispense the flocculant A and / or the flocculant B into the flocculation bucket. The driving motor rotates forwards and backwards to respectively drive the pistons in the firstdispensing cavity and the second dispensing cavity for reciprocating motion so as to respectively push the two flocculants corresponding to the first dispensing cavity and the second dispensing cavityso as to achieve the objective of driving different flocculants through a same motor for respective pushing and dispensing.

The invention relates to the field of conveyers, in particular to an endless conveyer belt conveyer. The endless conveyer belt conveyer comprises a first linear conveyer belt, a second linear conveyerbelt, a first annular conveyer belt and a second annular conveyer belt. The first linear conveyer belt and the second linear conveyer belt are the same in both specification and shape. The first linear conveyer belt comprises two fixed side plates which are arranged symmetrically and the same in specification, an installation groove is formed in the outer wall of the side, facing the other one, of each of the two fixed side walls, a fixed bearing is fixedly arranged inside each installation groove, and the interior of each fixed bearing is rotationally connected with a carrier roller througha transmission shaft. The endless conveyer belt conveyer has the beneficial effects that an annular production line for conveying goods can be formed to achieve the purpose of conveying the cargo, theoperational difficulty of people is greatly reduced, and the skid situation in the goods conveying process is avoided; and because the annular conveyer belts are connected with the linear conveyer belts, various splicing is achieved, and therefore , the endless conveyer belt conveyer is applicable to usage on various situations.

The present invention discloses a universal type bearing device. It includes a base body, a first positioning sheet which can be removably fixed on a first surface of said base body and a second positioning sheet which is opposite to said first positioning sheet and is removably fixed on a second surface of said base body. Said base body has several bearing holes which are passed through said first surface and said second surface, and said first positioning sheet and second positioning sheet respectively have several first and second holes correspondent to these bearing holes, and the diameter of said first and second holes is less than inner diameter of said bearing holes, so that, after several optical lenses are placed in the bearing holes of said base body, the sealed arrangement of said first positioning sheet and second positioning sheet can be utilized to obtain spacing effect.

The invention relates to the technical field of double-screw pumps, in particular to a novel horizontal double-screw pump. The technical problem to be solved by the invention is that dust or gravel impurities can easily enter into a pump from a vertical outlet. In order to solve the technical problem, the invention provides a novel horizontal double-screw pump which comprises a pump body, the right side of the front side of the pump body communicates with one end of a feeding pipe, the right side of the top of the pump body communicates with one end of a discharging pipe, two sides of the bottom of the inner wall of the discharging pipe are connected with two ends of a connecting rod respectively, and the middle position of the top of the connecting rod is connected with the bottom of a telescopic rod. According to the novel horizontal double-screw pump, the discharging pipe is improved, when the pump body is not used, a dustproof plate is restored to the initial position through elastic acting force of a reset spring, so that the discharging pipe is blocked, the phenomenon that the dust or the gravel impurities enter into the pump body from the vertical outlet is avoided, the internal cleaning of the double-screw pump is guaranteed, and the normal service life of the double-screw pump is prolonged.

The invention discloses a material mixing device used for a ceramic production line, and relates to the technical field of ceramic production. The material mixing device comprises a machine frame. A material conveying mechanism is fixedly installed on the top of the machine frame. First supporting legs are fixedly installed on the lower surface of the machine frame. A first feeding mechanism is fixedly installed on the top of the material conveying mechanism. A second feeding mechanism is fixedly installed at the position, located on one side of the first feeding mechanism, on the top of the material conveying mechanism. The material mixing device is scientific and reasonable in structure and convenient to operate; by means of the first feeding mechanism and the second feeding mechanism which are arranged, a regular and quantitative addition working procedure of ceramic production raw materials can be achieved, the automatic matching work of the material mixing device used for ceramicproduction is then achieved, and the work efficiency is effectively improved; by means of the material conveying mechanism which is arranged, the automatic conveying work of the ceramic raw materialsafter matching can be achieved; and by means of a material mixing mechanism which is arranged, the automatic material mixing working procedure of the ceramic production raw materials can be achieved,and the material mixing device is high in material mixing speed, high in material mixing uniformity and high in practicability.

The invention discloses a feeding device, and relates to the field of auxiliary machining. The feeding device comprises a workbench, a motor, a rotating shaft connected with the motor, and a supporting disc connected with the rotating shaft and used for a coil stock to be placed. The end, close to the coil stock, of the workbench is an inclined face, and the end, far away from the coil stock, of the workbench is horizontally arranged. A straightening mechanism, a conveying mechanism, a front clamping head, a rotation cutter and a rear clamping head are sequentially arranged at the horizontal position of the workbench. The supporting disc is of a cylindrical structure with the axis being horizontal. The circle center of the supporting disc is detachably connected with a cam shaft. The cam shaft is sequentially provided with a first cam and a second cam which are provided with a first lever and a second lever respectively. A forklift body is arranged between the first lever and the conveying mechanism and can shift the conveying mechanism to move left and right according to the movement of the first lever. The second lever is connected with the rear clamping head. The feeding device is simple in structure and convenient to operate.

The invention relates to agentia feeding equipment, in particular to sewage treatment solid agentia feeding equipment and aims to achieve the technical effects that by means of the sewage treatment solid agentia feeding equipment, feeding efficiency can be improved, and labor intensity can be lowered. According to the technical scheme, the sewage treatment solid agentia feeding equipment comprisesa cart, an Arbic-number-seven-shaped frame, a feeding hopper, a barrel body, a first bearing block, a first rotating shaft, a slotted disc, a first belt wheel, a fixing plate, a motor, a second beltwheel, a flat belt and the like. The right side of the cart is connected with the Arbic-number-seven-shaped frame, the left side face of the Arbic-number-seven-shaped frame is connected with the feeding hopper, the bottom of the feeding hopper is connected with the barrel body, and the bottom of the barrel body is provided with a discharging opening. The solid sewage treatment agentia can be conveyed into a shell body intermittently when the slotted disc is rotated clockwise, the solid sewage treatment agentia can be fed into sewage when a spiral blade is rotated clockwise, therefore the feeding efficiency can be improved, and the labor intensity can be lowered.

The invention discloses a conveying device for an electric heating pipe of a water heater, and relates to the technical field of electric heating pipe machining. The conveying device for the electricheating pipe of the water heater comprises a bottom plate, one side of the top of the bottom plate is fixedly connected to a slide rail by mounting a support rod, the position, on the right side of the slide rail, of the bottom plate is fixedly connected to a support rack, the side, away from the slide rail, of the support rack is fixedly connected with a clamping device, the slide rail is sleevedwith a sliding block, the top of the sliding block is fixedly connected with a sliding mounting frame, the upper part of the sliding mounting frame is fixedly connected with a feeding pipe, and the middle of the slide rail is slidably connected with a sliding mounting plate.. The conveying device for the electric heating pipe of the water heater realizes clamping of the electric heating pipe, andensures that the electric heating pipe can be rapidly clamped and stopped from being conveyed in pause when being conveyed, stable conveying of the electric heating pipe and the clamping and conveying efficiency of the electric heating pipe are ensured, the working speed is improved, and the labor cost is reduced.

The invention discloses a heating apparatus with the wind and light integration power generation function and the heat energy storage function. The heating apparatus comprises a tower and warm plates.Battery boxes are installed on the lower part of the tower. A support is fixed to the middle of the tower. Wavy heating plates are installed inside each warm plate. The warm plates are located on theleft side and the right side of the lower part of the tower respectively. According to the heating apparatus with the wind and light integration power generation function and the heat energy storagefunction, because light supplementation plates are arranged, the solar energy utilization efficiency of the apparatus is improved, the light supplementation plates have the good capability of moving for a certain angle relative to the support under the connection action of pin rods; because of the action of connecting rods, rotation structure foundations can be provided for lenses and reflectors respectively, and the placement angles of the lenses and the reflectors on the light supplementation plates are changed, wherein the lenses are used for light ray projection, so that light rays deflectfor a certain angle, the reflectors are used for reflecting light rays to change the transmission path of the light rays, and then, the light rays can make good contact with all solar photovoltaic panels.

The invention belongs to the technical field of medical instruments, and particularly relates to an acupotomy instrument. The acupotomy instrument comprises a knife body, a handle and an electrode wire; an infusion channel is formed in the knife body, a developing structure is arranged on the outer surface of the knife body, a first through hole and a second through hole are formed in the handle, a part of the body of the knife body is installed in the first through hole, and a part of the body externally connected with an administration tube is installed in the second through hole. The treatment end, away from the handle, of the knife body is of a wedge-shaped structure; an electrical stimulation block is arranged in the middle section of the cutting part and can receive electrical stimulation and transmit the electrical stimulation to human tissue, the cutting part is of a blade type structure, the electrical stimulation block is of a pyramid structure, and the two opposite sides of the pyramid structure are sharp. Electrical stimulation generated by the nerve electrical stimulator is transmitted to human tissues through the electrode wire, the needle knife body and the pyramid structure block, and nerve muscles can be stimulated to react. By using the acupotomy instrument in the technical scheme, various medical functions are integrated, the treatment range of an injection acupotomy is expanded, and the treatment effect of the acupotomy is improved.

The invention provides an IPv4 routing information processing method, device, system as well as an IPv4 data packet processing method, device and system. The objective of the invention is to solve the problem of the incapability of an existing IPv4 site to realize intercommunication through the IPv6 network operating multiple protocol label switching (MPLS). The processing method includes the step that the routing information of IPv4 routing is transferred to an egress 4PE router through extending a sub address family identifier (SAFI) in a multi-protocol border gateway protocol (MP-BGP), wherein the routing information contains an MPLS label corresponding to the IPv4 routing, the next hop of the IPv4 routing and the next hop of IPv6 routing. According to the IPv4 routing information processing method and the IPv4 data packet processing method of the invention, the SAFI in the multi-protocol border gateway protocol is extended, so that the IPv4 routing can be transferred through the IPv6 network, and an IPv4 data packet can be forwarded through the IPv6 network operating the multiple protocol label switching (MPLS).

The invention discloses an intelligent electric balance vehicle and an intelligent control device thereof. The electric balance vehicle is arranged below a fixing frame; a gravity device is universally pivoted on the fixed frame; an intelligent controller arranged on the fixing frame is utilized to control the gravity center offset position and direction of the gravity device. Therefore, the electric balance vehicle can be driven to advance, retreat and turn according to the gravity center offset position and direction of the gravity device, and the article conveying path of the intelligent electric balance vehicle can be planned and instructed according to the requirements of different application occasions, so the requirements of the application function of modern industrial automation are met.

The invention discloses a high pressure low temperature liquid nitrogen pump hydraulic terminal, belonging to the oil field liquid nitrogen conveyer device field. The high pressure low temperature pump hydraulic terminal of the invention comprises a plunger piston and a cylinder body; wherein the plunger piston and the cylinder body are sheathed and connected, the cylinder body is provided with an entire valve, a spacer bush is arranged between the cylinder body and the plunger piston, the spacer bush and the entire valve are connected, the outer surface of the spacer bush is provided with a first groove, the end face of the spacer bush far away from the entire valve is opened with a second groove which communicates the first groove and the interior of the spacer bush, the side wall of the cylinder body is provided with a precooling liquid inlet and a precooling liquid outlet, and the precooling liquid inlet and the precooling liquid outlet are respectively communicated with the first groove. The high pressure low temperature liquid nitrogen hydraulic terminal of the invention has simple structure, less quick-wear part and high reliability and is applicable to being popularized in the liquid nitrogen conveying field.

The invention aims at providing a serial port information transmission method, a single board device and a common-used single board. The single board device at least comprises a lower computer module and a central processor. The method comprises steps: the lower computer module receives a first message in an IPMI format carrying the serial port information sent by an upper computer module via an electromechanical management channel; the lower computer module converts the first message to a second message in a universal serial port message format carrying the serial port information; and the lower computer module sends the second message to the central processor via a second serial port, and the central processor executes corresponding processing according to the serial port information in the second message. The existing electromechanical management control method and the channel are used, and transmission of the central processor serial port information of all slave nodes is controlled at the electromechanical management control node.

The invention relates to agentia feeding equipment, in particular to sewage treatment solid agentia feeding equipment and aims to achieve the technical effects that by means of the sewage treatment solid agentia feeding equipment, feeding efficiency can be improved, and labor intensity can be lowered. According to the technical scheme, the sewage treatment solid agentia feeding equipment comprisesa cart, an Arbic-number-seven-shaped frame, a feeding hopper, a barrel body, a first bearing block, a first rotating shaft, a slotted disc, a first belt wheel, a fixing plate, a motor, a second beltwheel, a flat belt and the like. The right side of the cart is connected with the Arbic-number-seven-shaped frame, the left side face of the Arbic-number-seven-shaped frame is connected with the feeding hopper, the bottom of the feeding hopper is connected with the barrel body, and the bottom of the barrel body is provided with a discharging opening. The solid sewage treatment agentia can be conveyed into a shell body intermittently when the slotted disc is rotated clockwise, the solid sewage treatment agentia can be fed into sewage when a spiral blade is rotated clockwise, therefore the feeding efficiency can be improved, and the labor intensity can be lowered.

The invention discloses a media file delivery method and device, a storage medium and an electronic device. The method comprises the steps of obtaining target index information corresponding to a to-be-released target media file; obtaining a target scene type matched with the target index information, and determining a target video corresponding to the target scene type, the target scene type being used for indicating a scene of target content played by the target video at a corresponding target moment; and delivering the target media file to a target playing position corresponding to the target moment in the target video, wherein the initial playing moment of the target media file at the target playing position is the target moment. According to the method and the device, the technical problem of low media file delivery efficiency in related technologies is solved.

The invention discloses a machining waste treatment device for the mechanical field, and belongs to the field of machining waste treatment in the mechanical field. The machining waste treatment devicecomprises a crushing device, the crushing device comprises a crushing box, the upper end of the crushing box is fixedly connected with a feeding port, the side end of the crushing box is fixedly connected with a second fixing plate, the lower end of the second fixing plate is fixedly connected with a second motor, a second gear is fixedly connected to the side end of the second motor and engagedwith a first gear, a rotating shaft is fixedly connected to the side end of the first gear, blades are fixedly connected to the circumferential surface of the rotating shaft, the lower end of the crushing box is fixedly connected with a conveying device, the conveying device comprises a transverse conveying box, the lower end of the transverse conveying box is fixedly connected with a vertical conveying box, the lower end of the vertical conveying box is fixedly provided with an extrusion device, the extrusion device comprises an extrusion box, and a first guide groove is formed in the extrusion box. According to the machining waste treatment device, the structure is simple, the manufacturing cost is low, integration of waste treatment can be achieved only through simple operation, and continuous extrusion can be achieved.

The invention provides a page preview system and a page preview method, and the system is applied to the technical field of mobile communication. The system comprises a first terminal, a server and asecond terminal. The first terminal and the second terminal are connected with the server, and the first terminal is connected with the second terminal. The first terminal edits the information to besent and the preview page, and sends the preview page to the server. The server generates a storage address of the preview page and sends the storage address to the first terminal. The first terminalassociates the information to be sent with the storage address to obtain the associated information, and sends the associated information to the second terminal. The second terminal parses the associated information to obtain the storage address, and sends a preview request to the server according to the storage address. The server obtains a preview page according to the preview request and sendsthe preview page to the second terminal. The second terminal displays the information to be sent and the preview page. The page preview system and the page preview method provided by the invention canautomatically display the preview information and attract the attention of users.

The invention belongs to the technical field of reinforcing agents, particularly relates to a storage and conveying device for a sludge recycling reinforcing agent, and aims at solving the problem that the reinforcing agent cannot be ensured to be powdery when conveying is carried out. According to the following scheme, the storage and conveying device comprises a machine body, a storage box is fixedly arranged on the inner wall of the top of the machine body, a first rotating motor is fixedly arranged on the top of the machine body, the machine body and the outer wall of the top of the storage box are provided with the same feeding port, one end, extending into the storage box, of an output shaft of the first rotating motor is connected with a rotating shaft through a coupler, a pluralityof stirring paddles are fixedly arranged on the circumferential outer wall of the rotating shaft, and one end of the rotating shaft is connected with a packing auger through the coupler. According tothe storage and conveying device for the sludge recycling reinforcing agent, before conveying is carried out, the first rotating motor is used for driving the stirring paddles to rotate, stirring thereinforcing agent in the storage box is carried out, meanwhile, the packing auger is driven to rotate, then the reinforcing agent falls onto a first filter screen plate, the first filter screen platereciprocates up and down through a second motor, and the powdery reinforcing agent is screened into a conveying pipeline.

The invention discloses an efficient bio-organic fertilizer turning and throwing device comprising a turning and throwing vehicle. A stock bin is arranged at the bottom of the turning and throwing vehicle; a conveying auger is arranged in the stock bin; one side of the conveying auger is connected with a conveying auger motor; a hopper is arranged on the other side of the conveying auger and located below the stock bin. A material raising machine is arranged right below a material falling opening B; the material raising machine is connected with the turning and throwing vehicle through an adjusting hydraulic rod C; a fixed reinforcing ring is arranged on the outer side of the turning and throwing vehicle; an adjusting hydraulic rod A is fixedly arranged on a fixed reinforcing ring; an adjusting hydraulic rod B is arranged at the position, located on one side of the conveying auger motor, of the bottom of the turning and throwing vehicle, a feeding auger is installed on the adjusting hydraulic rod A and the adjusting hydraulic rod B, a shoveling hopper is arranged at the bottom of the feeding auger, a feeding auger motor is arranged on the feeding auger, and a discharging opening Ais formed in the top of the feeding auger. In actual use, the device is convenient for people to use so that the workload and the turning cost in the organic fertilizer turning and throwing are reduced.

The invention discloses a conveying device for an electric heating pipe of a water heater, and relates to the technical field of electric heating pipe machining. The conveying device for the electricheating pipe of the water heater comprises a bottom plate, one side of the top of the bottom plate is fixedly connected to a slide rail by mounting a support rod, the position, on the right side of the slide rail, of the bottom plate is fixedly connected to a support rack, the side, away from the slide rail, of the support rack is fixedly connected with a clamping device, the slide rail is sleevedwith a sliding block, the top of the sliding block is fixedly connected with a sliding mounting frame, the upper part of the sliding mounting frame is fixedly connected with a feeding pipe, and the middle of the slide rail is slidably connected with a sliding mounting plate.. The conveying device for the electric heating pipe of the water heater realizes clamping of the electric heating pipe, andensures that the electric heating pipe can be rapidly clamped and stopped from being conveyed in pause when being conveyed, stable conveying of the electric heating pipe and the clamping and conveying efficiency of the electric heating pipe are ensured, the working speed is improved, and the labor cost is reduced.

The invention relates to a flocculant dispenser, which comprises at least two dispense chambers, each of which is respectively provided with pistons for reciprocating motion to push different flocculants; the output end of the motor drives different The piston performs reciprocating motion. The present invention also relates to a flocculation washing machine, which includes a flocculation bucket, respectively containing two liquid storage boxes constituting flocculant A and flocculant B, and the two liquid storage boxes are connected to the flocculation bucket through the above-mentioned flocculant dispenser , to put flocculant A and / or B into the flocculation bucket. By driving the motor forward and reverse, the pistons in the first injection chamber and the second injection chamber are respectively driven to reciprocate, and then the two flocculants corresponding to the first injection chamber and the second injection chamber are respectively pushed to achieve different flocculation The agent is driven by the same motor to push and release separately.

The present invention discloses a universal type bearing device. It includes a base body, a first positioning sheet which can be removably fixed on a first surface of said base body and a second positioning sheet which is opposite to said first positioning sheet and is removably fixed on a second surface of said base body. Said base body has several bearing holes which are passed through said first surface and said second surface, and said first positioning sheet and second positioning sheet respectively have several first and second holes correspondent to these bearing holes, and the diameter of said first and second holes is less than inner diameter of said bearing holes, so that, after several optical lenses are placed in the bearing holes of said base body, the sealed arrangement of said first positioning sheet and second positioning sheet can be utilized to obtain spacing effect.

The invention discloses a DCN processing system of a packet and optical transport network fusion product. The DCN processing system comprises a packet control plane, a packet forwarding plane and an optical transport network forwarding plane. The invention further discloses a processing method of the file processing system. According to the invention, the corresponding virtual port of the OTN network is generated on the grouping equipment, and the PTN and the OTN are connected together according to different network forwarding characteristics through the corresponding relationship between thecontrol forwarding of the grouping and the OTN network, so that the purpose of transmitting the control information is achieved.

The invention relates to a thermal pump. According to the thermal pump, after a heat-carrying agent is heated through a heat source device, the heat-carrying agent is heated so that pressure can rise. The heat-carrying agent is squeezed into an outside pipeline and flows back into an upper cavity of a pump body. A buoyant tank floats up and down in a lower cavity of the pump body, and a partition plate arranged in the pump body is opened or closed to be sealed through a transmission part. Hence, the upper cavity and the lower cavity can be connected or disconnected, and operating cycle of the heat-carrying agent in the pipeline can be completed. The thermal pump has the beneficial effects that heat energy can be converted and conveyed through heat energy of the heat-carrying agent completely, so that energy saving is realized, the cost is low, the system structure is simple, and the heat energy transmitting efficiency is high.

The invention relates to a moving conveying device of an automobile production line. The moving conveying device comprises a rack, bearing blocks, gears and guiding strips. The rack is connected with the gears. The guiding strips are arranged below the gears. The gears are connected with the bearing blocks through transmission shafts. Supporting blocks are arranged at the upper ends and the lower ends of the bearing blocks. Bearings are arranged in the supporting blocks. A supporting rod is arranged on the front faces of the bearing blocks and provided with a mechanical arm. The lower gears are engaged and connected with rotation devices. The rotation devices are connected with a motor. After the above structure is adopted, compared with the prior art, the moving conveying device of the automobile production line greatly reduces the occupied space in a vertical transporting manner from the aspect of structure. In cooperation with transmission of the gears and rack, the purpose of transferring is achieved. Through cooperation of the bearing blocks and the guiding strips, bend transportation can be very effectively conducted.

The invention discloses a conveying device for rice processing. The conveying device comprises a machine body, a feeding hopper, a waste box, a first protection box and a second protection box, wherein the feeding hopper is fixedly connected to the top surface of the machine body; the waste box is fixedly connected to the bottom of the right side wall of the machine body; a rice conveying cavity is formed in the machine body; and the rice conveying cavity is step-shaped. According to the conveying device, a plurality of screen holes are formed in the bottom surface of an upper horizontal cavity of the rice conveying cavity in an array mode, so that in the stirring and conveying process, small unqualified grains in rice and fine sand, fine stones and the like in the rice are effectively made to fall into a waste conveying channel through the screen holes, and preliminary impurity removal is carried out on the rice; In the falling process of the rice from a vertical cavity, empty rice husks, small broken leaves, broken grass and the like carried in the rice are effectively blown into the waste conveying channel through the arranged fan, and then further impurity removal is carried out on the rice, so that the quality of the rice is guaranteed.