CN210080030U

CN210080030U - Filtering and impurity removing device of aluminum oxide conveying system

Info

Publication number: CN210080030U
Application number: CN201920721848.1U
Authority: CN
Inventors: 冯冬昌; 闫军; 丁义州; 王成顺
Original assignee: Zhengzhou Song Sen Special Alumina Co Ltd
Current assignee: Zhengzhou Song Sen Special Alumina Co Ltd
Priority date: 2019-05-20
Filing date: 2019-05-20
Publication date: 2020-02-18
Anticipated expiration: 2029-05-20

Abstract

The utility model relates to a filtering and impurity-removing device of an alumina conveying system, which better solves the problems that a large amount of alumina raw materials are easily accumulated on a screen and a discharging pipe is blocked in the existing alumina filtering and impurity-removing process; the technical scheme comprises the following steps: alumina has a plurality of collection boxes through the discharging pipe intercommunication and vertical sliding connection has the screen cloth in the collection box, when accumulational alumina raw materials is more on the screen cloth, through setting up the transmission on the collection box lateral wall, the drive rotates the switch valve opening of installing on the discharging pipe and diminishes, accumulational raw materials more on the screen cloth switch valve opening becomes less, so that switch valve closes the transport that stops the raw materials, meanwhile, the screen cloth is quick reciprocating motion through the reciprocating drive structure who sets up in the screen cloth frame, make the raw materials of piling up on the screen cloth scatter fast and accomplish the separation of raw materials and debris from the screen cloth, the procedure of artifical clearance has been saved, the device's filtration has been improved greatly, edulcoration efficiency.

Description

Filtering and impurity removing device of aluminum oxide conveying system

Technical Field

The utility model relates to a filtering and impurity removing device, in particular to a filtering and impurity removing device of an aluminum oxide conveying system for effectively filtering and removing impurities in the aluminum electrolysis aluminum oxide conveying process.

Background

The aluminum electrolysis flue gas purification system adopts an alumina dry method purification technology to purify and recover hydrogen fluoride gas in aluminum electrolysis flue gas, and the purification process comprises the following steps: the flue gas generated in the aluminum electrolysis production process passes through the electrolytic bath gas collecting hood, enters the purification flue by the power provided by the smoke exhaust fan, the fresh alumina used by the purification system is conveyed to a feeding point through a chute, is fed into the purification flue by a feeding device, is mixed with the electrolytic flue gas in the flue, is subjected to adsorption reaction with the hydrogen fluoride gas to form mixed gas (fluorine-carrying flue gas) of fluorine-carrying alumina and the flue gas, the fluorine-carrying flue gas enters a bag-type dust remover, the separation of the fluorine-carrying alumina and the clean gas is realized through the filtering and intercepting action of a bag of the bag-type dust remover, the separated clean gas is exhausted into the atmosphere through a chimney of 70m by the smoke exhaust fan, the fluorine-carrying alumina subjected to gas-solid separation is conveyed to a fluorine-carrying bin through a pneumatic elevator, and the alumina (the mixture of purified and recovered fluorine-carrying alumina and carbon yellow material) in the fluorine-carrying bin is conveyed to the wall bin, then the feeding pipe at the lower part of the wall bin passes through a pneumatic chute at the upper part of the electrolytic cell and is fed into the electrolytic cell by 4 alumina constant-volume feeders;

the alumina raw material is provided with large alumina agglomerates and small alumina particles with the particle size of about 5-15 mm, fresh alumina can bring impurities such as plastic cloth and the like in the transportation, throwing and conveying processes, when a fresh alumina bin mixed with the impurities enters a blanking pipeline, the blanking pipeline can be blocked, so that the alumina raw material cannot be uniformly thrown into a purification system, meanwhile, due to the impurities of the alumina material, the alumina raw material can be deposited in a feeding pneumatic chute of an electrolytic bath, the air permeability of a chute boiling plate is poor, the pneumatic chute cannot run, the purification efficiency is reduced, therefore, the alumina raw material needs to be filtered and purified through a filter box before being conveyed to a blanking pipe, the method is generally solved by arranging a screen in the filter box and separating the alumina agglomerates, the impurities and the like from the alumina raw material, but when the alumina raw material is over-wet and the alumina agglomerates with large particles exist in the impurities, very easily lead to the raw materials to pile up on the screen cloth and block up the hole on the screen cloth, need stop the separation edulcoration work of aluminium oxide this moment, need the manual debris that will pile up on the screen cloth of workman to clear up to lead to work efficiency greatly reduced also to bring great work burden for the workman, in view of above we provide an aluminium oxide conveying system's filtration edulcoration device.

SUMMERY OF THE UTILITY MODEL

To the above situation, for overcoming prior art's defect, the utility model provides an alumina conveying system's filtration edulcoration device, this alumina filtration edulcoration device can be according to the supply rate of how much automatic control alumina raw materials of the volume of accumulational alumina raw materials on the screen cloth, reduce and then reduce the delivery capacity of alumina raw materials through mutually supporting switch valve and transmission when the alumina accumulation volume is more on the screen cloth, and drive the screen cloth through the motor and do quick reciprocating motion in shining the net frame, make the alumina raw materials that piles up together on the screen cloth leak down from the screen cloth because of receiving vibrations, when a large amount of alumina raw materials pile up no longer appearing on the screen cloth, switch valve is with the opening grow again under transmission's control, thereby resume normal alumina feed speed.

The specific technical scheme is as follows:

alumina conveying system's filtration edulcoration device, including alumina feed tank, its characterized in that, alumina feed tank bottom intercommunication has a plurality of discharging pipes and the other end intercommunication of discharging pipe has the collection box, the vertical sliding connection in collection box horizontal both sides wall in screen frame and screen frame bottom that the slope set up was installed to the upper end in the collection box, be provided with in the screen frame and be connected with first spring between screen frame and the collection box lateral wall, the horizontal one side of screen frame is fixed with trigger plate and triggers the board and outwards wears out the collection box, and trigger plate wears out collection box one end below interval and is equipped with vertical sliding connection U-shaped pole and the U-shaped pole face on the collection box lateral wall and is equipped with a plurality of first teeth to collection box one side, and a plurality of first tooth meshes has to rotate gear and is installed on the collection box lateral wall and is connected with the second spring between U-shaped pole and the collection box lateral wall, the coaxial rotation of gear is connected with pulley group and when the amount of alumina raw materials accumulated on the screen is too much, the screen frame moves downwards and drives the U-shaped rod to drive the rotating gear to rotate so as to drive the opening of the switch valve to be reduced through the belt pulley group, the waste pipe matched with the screen is arranged on the other side of the recovery box, and the waste collecting box is arranged at the other end of the waste pipe.

Preferably, the switching valve includes: a cylinder rotatably mounted on the discharge pipe, a plurality of arc-shaped sliding chutes are arranged on one transverse side of the cylinder at intervals around the circle center of the cylinder, and the other transverse side of the cylinder is rotatably mounted on a circular plate fixed on the discharge pipe, a polygonal sliding groove is formed in one side, facing the cylinder, of the circular plate, a sliding shaft is connected in the arc-shaped sliding groove in a sliding mode, one end, close to the polygonal sliding groove, of the sliding shaft is integrally connected with a plugging plate which is connected in the polygonal sliding groove in a sliding mode, the side walls of the multiple plugging plates are in sliding fit, a circular sliding groove is formed in the position, in which the circular sliding groove is in rotating fit, of the cylinder and the discharging pipe, a circular ring which is in rotating fit with the circular sliding groove is arranged on the discharging, when the cylinder rotates under the driving of the belt pulley group through the transmission device, the plugging plates can be gathered or diffused towards the central position, so that the opening of the switch valve is enlarged or reduced.

Preferably, the transmission means comprises: the fixed worm wheel of cover and worm wheel cooperation have the rotation to install the worm on the discharging pipe on the horizontal one side outer wall of drum, the pulley group includes the first belt pulley with the coaxial pivoted of gear, be connected with the belt between the vertical one side cover fixed second belt pulley of worm and first belt pulley and the second belt pulley.

Preferably, the two horizontal side walls in the recycling box are provided with vertically extending rectangular sliding holes, the bottom of the screen frame is connected in the rectangular sliding holes matched with the rectangular sliding holes through the rectangular plate in a vertical sliding mode, and one end of the first spring is connected to the other end of the rectangular plate and connected to the bottom wall of the rectangular sliding holes.

Preferably, be equipped with in the screen cloth frame rectangle frame and the horizontal both ends of screen cloth frame be equipped with the smooth chamber of the first rectangle of rectangle frame lateral sliding fit, the screen cloth sets up in the rectangle frame, the vertical one side of screen cloth frame is equipped with and slides chamber and rectangle frame and place the smooth intracavity one end fixedly connected with rectangle tooth frame of second rectangle in with rectangle frame sliding fit's second rectangle, rotate on the smooth chamber diapire of second rectangle and install the semi-gear with rectangle tooth frame matched with, the semi-gear is by setting up the motor drive on the screen cloth frame diapire.

Preferably, the trigger plate is provided with a first conducting strip, the horizontal part of the U-shaped rod matched with the trigger plate is provided with a second conducting strip, the first conducting strip and the second conducting strip are connected in series in a voltage stabilizing loop arranged on the recovery box, the first conducting strip and the second conducting strip are matched with each other to form a switch of the motor, and the motor works when the two conducting strips are in contact with each other and stops working when the two conducting strips are separated.

Preferably, the included angle between the screen frame and the horizontal plane is set to be 30-40 degrees.

The beneficial effects of the technical scheme are as follows:

(1) this aluminium oxide filters edulcoration device can be according to the supply speed of how much automatic control aluminium oxide raw materials of the volume of the aluminium oxide raw materials of piling up on the screen cloth, through the switch valve and transmission of mutually supporting when the aluminium oxide accumulation volume is more on the screen cloth with the opening of switch valve reduce and then reduce the delivery capacity of aluminium oxide raw materials, and drive the screen cloth through the motor and do quick reciprocating motion in the screen cloth frame, make the aluminium oxide raw materials of piling up together on the screen cloth leak down from the screen cloth because of receiving vibrations, the screen cloth is quick reciprocating motion in the screen cloth frame this moment and is favorable to making the raw materials of piling up on the screen cloth scatter and fall down from the small opening of screen cloth, accomplish the separation, the edulcoration, when no longer appearing a large amount of aluminium oxide raw materials on the screen cloth and piling up, switch valve is with the opening grow again under transmission's control, thereby resume normal aluminium oxide feed speed and motor stop work (horizontal sliding connection is also stopped moving thereupon in the screen cloth ) (ii) a

(2) And this aluminium oxide conveying system's filtration edulcoration device is provided with the multiunit discharging pipe, only has an solitary discharging pipe for traditional aluminium oxide raw materials's filtration, greatly increased the efficiency of filtration, edulcoration, when the during operation that stops working that breaks down of one of them group discharging pipe, other discharging pipes still can guarantee normal aluminium oxide raw materials carry filtration, edulcoration for this filtration edulcoration device efficiency is higher.

Drawings

FIG. 1 is a front view of the overall structure of the present invention;

FIG. 2 is a schematic top view of the overall structure of the present invention;

FIG. 3 is a schematic front view of the overall structure of the present invention;

FIG. 4 is a schematic view of the internal structure of the recycling bin of the present invention after a longitudinal side wall thereof is cut away;

FIG. 5 is an enlarged view of the structure at the position A of the present invention;

FIG. 6 is a schematic view showing the fitting relationship between the screen frame and the U-shaped rod after the recovery box is removed;

FIG. 7 is a schematic view of the screen frame of the present invention showing the relationship between the rectangular holes and the first rectangular sliding cavities after being cut at one longitudinal side;

FIG. 8 is an enlarged view of the structure at B of the present invention;

FIG. 9 is a schematic view of the rectangular frame of the present invention in a longitudinal cross-sectional view from one side of the screen frame;

FIG. 10 is a schematic view of the present invention after the rectangular frame is separated from the screen frame;

FIG. 11 is a schematic view of the fitting relationship between the rectangular rack frame, the second rectangular sliding cavity and the half gear of the present invention;

FIG. 12 is a schematic view showing the connection relationship between the switching valve and the discharge pipe of the present invention;

FIG. 13 is a schematic view of another view angle of the connection relationship between the switching valve and the discharge pipe of the present invention;

FIG. 14 is a schematic view of the switching valve of the present invention after separation from the discharge pipe;

FIG. 15 is a schematic view of the present invention showing a plurality of plugging plates cooperating with each other to enlarge the opening;

FIG. 16 is a schematic view of the present invention showing a plurality of plugging plates cooperating with each other to reduce the opening;

FIG. 17 is a schematic view showing the internal structure of the circular plate and the cylinder of the present invention after separation;

fig. 18 is a schematic view of another perspective of the internal structure of the circular plate and the cylinder of the present invention after being separated.

In the figure: the device comprises an alumina feeding box 1, an alumina discharging pipe 2, a recycling box 3, a screen frame 4, a first spring 5, a trigger plate 6, a U-shaped rod 7, a first tooth 8, a second spring 9, a belt pulley group 10, a switch valve 11, a waste collecting box 12, a waste pipe 13, a cylinder 14, a circular plate 15, an arc-shaped sliding chute 16, a sliding shaft 17, a blocking plate 18, a circular sliding chute 19, a circular ring 20, a worm wheel 21, a worm 22, a first belt pulley 23, a second belt pulley 24, a belt 25, a rectangular sliding hole 26, a rectangular plate 27, a rectangular frame 28, a first rectangular sliding cavity 29, a second rectangular sliding cavity 30, a rectangular tooth frame 31, a half gear 32, a motor 33, a gear 34, a screen 35, a polygonal sliding chute 36, a connecting rod 37 and a rectangular block 38.

Detailed Description

The foregoing and other technical matters, features and effects of the present invention will be apparent from the following detailed description of the embodiments, which is to be read in connection with the accompanying drawings of fig. 1 to 18. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.

Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.

A filtering and impurity-removing device of an aluminum oxide conveying system comprises an aluminum oxide feeding box 1 and is characterized in that the bottom of the aluminum oxide feeding box 1 is communicated with a plurality of discharging pipes 2, the other ends of the discharging pipes 2 are communicated with a recovery box 3, an obliquely arranged screen frame 4 is arranged at the upper end in the recovery box 3, the bottom of the screen frame 4 is vertically and slidably connected between two lateral walls of the recovery box 3, a screen 35 is arranged in the screen frame 4, a first spring 5 is connected between the screen frame 4 and the lateral wall of the recovery box 3, a trigger plate 6 is fixed at one lateral side of the screen frame 4, the trigger plate 6 penetrates out of the recovery box 3, a U-shaped rod 7 which is vertically and slidably connected on the lateral wall of the recovery box 3 is arranged below one end of the trigger plate 6 which penetrates out of the recovery box 3, a plurality of first teeth 8 are meshed with gears which are rotatably arranged on the lateral wall of the recovery box 3, and a second spring 9 is connected between the U-shaped rod 7 and, the coaxial rotation of gear is connected with belt pulley group 10 and the drive of the belt pulley group 10 other end has the switch valve 11 of rotation installation on discharging pipe 2, makes screen frame 4 downstream and drive 7 drive turning gear of U-shaped pole and rotate and then diminish through belt pulley group 10 drive switch valve 11 opening when accumulational aluminium oxide raw materials are too much on the screen cloth, the horizontal opposite side of collection box 3 is equipped with and is equipped with waste material collecting box 12 with screen cloth matched with waste material pipe 13 and the waste material pipe 13 other end.

When the aluminum oxide waste material recycling device is used, the bottom of an aluminum oxide raw material box is communicated with a plurality of discharging pipes 2, the other ends of the discharging pipes 2 are communicated with an aluminum oxide recycling box 3, the recycling box 3 collects waste materials screened from aluminum oxide raw materials into a waste material collecting box 12 through waste material pipes 13 communicated with the recycling box, a plurality of groups of discharging pipes 2 are arranged in the aluminum oxide waste material recycling device, the filtering and impurity removing efficiency of the aluminum oxide raw materials can be greatly improved, more pure aluminum oxide raw materials can be brought to a factory in unit time, and two ends of each discharging pipe 2 are fixedly connected with an aluminum oxide feeding box 1 and the recycling box 3 respectively and are communicated with the aluminum oxide feeding box 1 and the recycling box 3;

when implemented; alumina raw material stored in the alumina feeding box 1 flows out of the discharging pipe 2 and enters the recovery box 3 through the switch valve 11 arranged on the discharging pipe 2, an obliquely arranged screen frame 4 (shown by reference to figure 4) is arranged in the recovery box 3, the alumina raw material enters the recovery box 3 from the discharging pipe 2 and falls onto a screen 35 on the screen frame 4, the alumina raw material and impurities roll downwards along the screen 35 under the action of self gravity, in the process, the caking alumina with larger particles and other impurities can not leak from the leakage holes of the screen 35 and the alumina raw material meeting the requirements leaks from the leakage holes on the screen 35, the clean alumina raw material leaking from the screen 35 is stored in the recovery box 3, the alumina caking and other impurities enter the waste material collection box 12 through the waste material pipe 13 arranged on the side wall of the recovery box 3, so that the separation of the alumina raw material and the impurities is completed; preferably, the screen frame 4 is vertically slidably connected between the two lateral side walls in the recycling bin 3, and the bottom of the screen frame 4 is connected with the two lateral side walls of the recycling bin 3 through the first spring 5, when the alumina raw material is not greatly accumulated on the screen 35, the alumina raw material on the screen 35 is not much, at this time, the separation operation of the alumina raw material and impurities can be well completed, but when the alumina raw material has high humidity and is excessively humid, the flowability of the alumina raw material on the screen 35 is poor, a large amount of alumina raw material is easily accumulated on the screen 35 to cause the blockage of the screen 35, at this time, because a large amount of alumina raw material is accumulated on the screen 35, the weight borne by the screen frame 4 is also large, at this time, the screen frame 4 starts to move downwards along the two lateral side walls of the recycling bin 3 and compresses the first spring 5, at this time, the trigger plate 6 connected with the screen frame 4 also moves downwards along with the screen frame, when the trigger plate 6 moves downward with the screen frame 4 so as to touch the horizontal portion of the U-shaped rod 7 vertically slidably connected to the side wall of the recovery tank 3, the U-shaped rod 7 is simultaneously driven to move downward, and drives the gear 34 engaged with the first teeth 8 provided on the U-shaped bar 7 to rotate, and then the belt pulley group 10 drives the switch valve 11 installed on the discharge pipe 2 to rotate, so that the opening of the switch valve 11 is reduced, the alumina supply amount of the discharge pipe 2 corresponding to the recovery box 3 is reduced, the raw material blockage caused by the accumulation of a large amount of alumina raw material on the screen 35 is avoided, and the opening of the on-off valve 11 is made smaller as the amount of the alumina raw material accumulated on the screen 35 is larger by passing through the pulley group 10, so that the switch valve 11 is closed finally, the alumina raw material supply of the discharging pipe 2 is stopped, and the reliability of the filtering and impurity removing device is high.

Embodiment 2, on the basis of embodiment 1, the switching valve 11 includes: a cylinder 14 rotatably mounted on the discharge pipe 2, wherein one lateral side of the cylinder 14 is provided with a plurality of arc-shaped sliding grooves 16 at intervals around the center of the circle, the other lateral side of the cylinder is rotatably mounted on a circular plate 15 fixed on the discharge pipe 2, one side of the circular plate 15 facing the cylinder 14 is provided with a polygonal sliding groove 36, the arc-shaped sliding grooves 16 are connected with sliding shafts 17 in a sliding manner, one end of each sliding shaft 17 close to the polygonal sliding groove 36 is integrally connected with a blocking plate 18 connected in the polygonal sliding groove 36 in a sliding manner, the side walls of the blocking plates 18 are in sliding fit, the rotatably fitted part of the cylinder 14 and the discharge pipe 2 is provided with a circular sliding groove 19, the discharge pipe 2 is provided with a circular ring 20 rotatably fitted with the circular sliding groove 19, the cylinder 14 is provided with a transmission device, the transmission device is connected with the pulley block 10, and when the cylinder 14 rotates, thereby achieving the effect of making the opening of the on-off valve 11 larger or smaller.

This embodiment will be described in detail below with respect to how the on-off valve 11 operates when in use; the switch valve 11 comprises a cylinder 14 which is installed in a rotating fit with a discharge pipe 2, one side of the cylinder 14 which is transversely matched with the discharge pipe 2 in a rotating way is provided with a circular sliding groove 19 which is coaxially arranged with the cylinder 14, the discharge pipe 2 is provided with a circular ring 20 which is matched with the circular sliding groove 19 in a rotating way, the other transverse end of the cylinder 14 is rotatably installed on a circular plate 15 which is fixed on the discharge pipe 2, the circular plate 15 is fixed on the discharge pipe 2 through a connecting rod 37, as shown in the attached drawing, 14, the circular ring 20 is rotatably installed in the circular sliding groove 19 so as to realize the communication between the cylinder 14 and the discharge pipe 2, as shown in the attached drawings, 17 and 18, a sliding shaft 17 is connected in the arc-shaped sliding groove 19 which is arranged on the cylinder 14 in a sliding way, the sliding shaft 17 is integrally connected with a plugging plate 18 which is connected, the polygon is set as several sides), the side walls of the plurality of blocking plates 18 are in sliding fit, the cylinder 14 is provided with a transmission device, the transmission device is driven by the belt pulley set 10, when the cylinder 14 rotates under the driving of the belt pulley set 10 by the transmission device, the plurality of blocking plates 18 gather or diffuse towards the central position, so that the opening of the switch valve 11 is enlarged or reduced, and the speed of supplying the aluminum oxide raw material into the recovery box 3 by the discharging pipe 2 is changed, as shown in the attached

drawings

15 and 16, when the cylinder 14 is driven by the transmission device to rotate along the counterclockwise direction, the sliding shaft 17 in the arc-shaped sliding groove 19 slides along the arc-shaped sliding groove 19 towards the position far away from the center, and the blocking plates 18 integrally connected with the sliding shaft 17 slide along the polygon-shaped sliding groove 36 by the rectangular block 38, at this time, the plurality of blocking plates 18 diffuse towards the direction far away from the center, so that the opening of the switching valve 11 becomes large; when the transmission device drives the cylinder 14 to rotate in the clockwise direction, the sliding shaft 17 in sliding fit with the arc-shaped sliding groove 19 slides along the arc-shaped sliding groove 19 towards the position close to the center, and the blocking plates 18 integrally connected with the sliding shaft 17 slide along the polygonal sliding groove 36 through the rectangular blocks 38, at this time, the blocking plates 18 are gathered towards the direction close to the center position, so that the opening of the switch valve 11 is reduced.

Embodiment 3, on the basis of embodiment 2, the transmission device includes: the inherent worm wheel 21 of cover and worm wheel 21 cooperation have the rotation to install the worm 22 on discharging pipe 2 on the horizontal one side outer wall of drum 14, pulley group 10 includes the first belt pulley 23 with the coaxial pivoted of gear 34, the inherent second belt pulley 24 of worm 22 vertical one side cover and be connected with the belt 25 between first belt pulley 23 and the second belt pulley 24.

This embodiment will be described in detail below with respect to what the transmission is made up of and how it operates when in use; the worm wheel 21 is fixedly sleeved on the outer wall of the cylinder 14, the worm wheel 21 is matched with a worm 22 rotatably installed on the discharge pipe 2, the worm 22 is fixedly sleeved with a second belt pulley 24, the gear 34 is fixedly sleeved with a first belt pulley 23, the first belt pulley 23 is connected with the second belt pulley 24 through a belt 25, when a large amount of alumina raw materials are accumulated on the screen 35, the screen frame 4 moves downwards and drives the trigger plate 6 connected with the screen frame to move downwards, the U-shaped rod 7 is driven to move downwards to drive the gear 34 to rotate, the worm 22 is driven to rotate through the belt pulley set 10, the cylinder 14 is driven to rotate, and therefore the effect of driving the cylinder 14 to rotate is achieved, the blocking plates 18 are gathered towards the position close to the center, the opening of the switch valve 11 is made small, and the supply rate of the alumina raw materials is reduced.

Embodiment 4, on the basis of embodiment 1, vertically extending rectangular sliding holes 26 are formed in two lateral side walls in the recycling bin 3, the bottom of the screen frame 4 is vertically and slidably connected to the rectangular sliding holes 26 matched with the bottom of the screen frame through a rectangular plate 27, one end of the first spring 5 is connected to the rectangular plate 27, and the other end of the first spring is connected to the bottom wall of the rectangular sliding hole 26.

This embodiment will be described in detail below with respect to how the screen frame 4 is slidably connected vertically between the lateral side walls inside the recovery tank 3 when in use; referring to the attached

drawings

4 and 5, vertically extending rectangular sliding holes 26 are formed in two transverse side walls in the recovery box 3, a rectangular plate 27 is fixedly connected to the bottom of the screen frame 4, the screen frame 4 is vertically and slidably connected into the rectangular sliding holes 26 through the rectangular plate 27, one end of the first spring 5 is connected with the rectangular plate 27, and the other end of the first spring is connected with the bottom wall of the rectangular sliding block

Embodiment 5, on the basis of embodiment 4, be equipped with rectangle frame 28 in the screen frame 4 and the horizontal both ends of screen frame 4 are equipped with the first rectangle sliding chamber 29 with rectangle frame 28 horizontal sliding fit, the screen cloth sets up in rectangle frame 28, the vertical one side of screen frame 4 is equipped with the second rectangle sliding chamber 30 and the rectangle frame 28 of sliding fit with rectangle frame 28 places in the second rectangle sliding chamber 30 one end fixedly connected with rectangle tooth frame 31, rotate on the second rectangle sliding chamber 30 diapire and install the half gear 32 with rectangle tooth frame 31 matched with, half gear 32 is driven by the motor 33 that sets up on screen frame 4 diapire.

In the use of this embodiment, preferably, when a large amount of alumina raw material is deposited on the screen 35, in order to timely and quickly leak the alumina raw material deposited on the screen 35 through the holes on the screen 35, as shown in fig. 7 and 8, we have a rectangular pattern in the screen frame 4 and a rectangular frame 28 transversely slidably connected in the screen frame 4, we have first rectangular sliding cavities 29 slidably fitted with the rectangular frame 28 at both transverse ends of the screen frame 4, we have a second rectangular sliding cavity 30 slidably fitted with the rectangular frame 28 at one longitudinal side of the screen frame 4, as shown in fig. 10 and 11, and the rectangular frame 28 is fixedly connected with a rectangular toothed frame 31 in the second rectangular sliding cavity 30, a half gear 32 rotatably mounted on the bottom wall of the second rectangular sliding cavity 30 is engaged in the rectangular toothed frame 31, and the half gear 32 is driven by a motor 33 (the motor 33 is connected with an external power supply) arranged at the bottom of the screen frame 4, when a large amount of alumina raw materials are stacked on the screen 35, the motor 33 is controlled by the motor 33 controller to work so as to drive the half gear 32 to rotate, so that the rectangular toothed frame 31 matched with the half gear 32 can move back and forth in the second rectangular sliding cavity 30, and further the rectangular frame 28 can be driven to move back and forth in the screen frame 4, so that the alumina raw materials stacked on the screen 35 and the screen 35 can move relatively, the alumina raw materials stacked together can be dispersed, the alumina raw materials stacked on the screen 35 can leak from the leakage holes, the separation of impurities is completed, and the two first rectangular sliding cavities 29 are arranged: the rectangular frame 28 is not separated from the first rectangular slide chamber 29 when it is reciprocated in the first rectangular slide chamber by the motor 33.

Embodiment 6 is based on embodiment 5, wherein the trigger plate 6 is provided with a first conductive plate, and the horizontal portion of the U-shaped rod 7, which is matched with the trigger plate 6, is provided with a second conductive plate, the first conductive plate and the second conductive plate are connected in series in a voltage stabilizing loop arranged on the recycling bin 3, and the first conductive plate and the second conductive plate are matched with each other to form a switch of the motor 33, and when the two conductive plates are in contact, the motor 33 operates, and when the two conductive plates are separated, the motor 33 stops operating.

When the embodiment is used, preferably, in order to reduce the workload of workers, a first conducting strip is arranged on the trigger plate 6, a second conducting strip is fixed on the horizontal part of the U-shaped rod 7 matched with the trigger plate 6, the two conducting strips are connected in series in a voltage stabilizing loop arranged on the recovery box 3, when the trigger plate 6 is contacted with the horizontal part of the U-shaped rod 7, a large amount of alumina raw materials are accumulated on the screen mesh 35 at the moment, the first conducting strip is contacted with the second conducting strip, the voltage stabilizing loop is switched on (the first conducting strip and the second conducting strip are matched with each other to form a switch of the motor 33), the motor 33 is powered on to start working when the voltage stabilizing loop is switched on, and then the rectangular frame 28 is driven to reciprocate in the screen mesh frame 4, so that a large amount of raw materials accumulated on the screen mesh frame 4 are exposed through the.

Example 7 on the basis of example 1, the screen frame 4 is arranged at an angle of 30-40 degrees to the horizontal plane. The screen frame and the horizontal plane are clamped at an angle of 30-40 degrees, so that the alumina raw material and impurities falling on the screen 35 can roll along the screen under the action of the gravity of the alumina raw material and the impurities.

The alumina filtering and impurity removing device can automatically control the supply speed of alumina raw materials according to the amount of the alumina raw materials stacked on the screen 35, when the amount of the alumina stacked on the screen 35 is large, the opening of the switch valve 11 is reduced through the switch valve 11 and the transmission device which are matched with each other, so that the conveying amount of the alumina raw materials is reduced, the motor 33 drives the screen 35 to do rapid reciprocating motion in the screen frame 4, so that the alumina raw materials stacked together on the screen 35 leak down from the screen 35 due to vibration, at the moment, the screen 35 does rapid reciprocating motion in the screen frame 4, so that the raw materials stacked on the screen 35 are scattered and fall down from a leakage hole of the screen 35, separation and impurity removal are completed, when a large amount of alumina raw materials are not stacked on the screen 35, the switch valve 11 enlarges the opening again under the control of the transmission device, thereby restoring the normal alumina feeding speed and stopping the operation of the motor 33 (the screen 35 which is transversely slidably connected in the screen frame 4 is also stopped);

and this aluminium oxide conveying system's filtration edulcoration device is provided with multiunit discharging pipe 2, only has an solitary discharging pipe 2 for the filtration of traditional aluminium oxide raw materials, greatly increased the efficiency of filtration, edulcoration, when one of them group discharging pipe 2 break down the stop work, other discharging pipes 2 still can guarantee normal aluminium oxide raw materials carry filtration, edulcoration for this filtration edulcoration device efficiency is higher.

The above description is only for the purpose of illustration, and it should be understood that the present invention is not limited to the above embodiments, and various modifications conforming to the spirit of the present invention are within the scope of the present invention.

Claims

1. A filtering and impurity removing device of an aluminum oxide conveying system comprises an aluminum oxide feeding box (1) and is characterized in that the bottom of the aluminum oxide feeding box (1) is communicated with a plurality of discharging pipes (2) and the other ends of the discharging pipes (2) are communicated with a recovery box (3), a screen frame (4) which is obliquely arranged is installed at the upper end in the recovery box (3), the bottom of the screen frame (4) is vertically and slidably connected between the two lateral walls of the recovery box (3), a screen is arranged in the screen frame (4), a first spring (5) is connected between the screen frame (4) and the lateral walls of the recovery box (3), a trigger plate (6) is fixed on one lateral side of the screen frame (4) and penetrates out of the recovery box (3) outwards through the trigger plate (6), a U-shaped rod (7) which is vertically and slidably connected on the lateral walls of the recovery box (3) is arranged at the interval below one end of the trigger plate (6) which penetrates out of the recovery box (3), and a plurality of first teeth (8) are arranged on, a plurality of first teeth (8) are meshed with a gear (34) rotatably installed on the side wall of the recovery box (3) and a second spring (9) is connected between the U-shaped rod (7) and the side wall of the recovery box (3), the gear (34) is coaxially rotatably connected with a belt pulley set (10) and the other end of the belt pulley set (10) drives a switch valve (11) rotatably installed on the discharge pipe (2), when too much alumina raw material is accumulated on the screen (35), the screen frame (4) moves downwards and drives the U-shaped rod (7) to drive the rotating gear (34) to rotate so as to drive the switch valve (11) to be opened and reduced through the belt pulley set (10), and the transverse other side of the recovery box (3) is provided with a waste pipe (13) matched with the screen and the other end of the waste pipe (13) is provided with a waste collecting box (12).

2. The alumina conveying system's filtration and impurity removal device according to claim 1, wherein the switch valve (11) comprises: a cylinder (14) rotatably mounted on the discharge pipe (2), a plurality of arc-shaped chutes (16) are annularly arranged on one transverse side of the cylinder (14) at intervals around the circle center of the cylinder, a circular plate (15) fixed on the discharge pipe (2) is rotatably mounted on the other transverse side of the cylinder, a polygonal chute (36) is arranged on one side of the circular plate (15) facing the cylinder (14), a sliding shaft (17) is slidably connected in the arc-shaped chute (16), a plugging plate (18) slidably connected in the polygonal chute (36) is integrally connected to one end, close to the polygonal chute (36), of the sliding shaft (17), a plurality of side walls of the plugging plate (18) are in sliding fit, a circular chute (19) is arranged at the rotatably fit part of the cylinder (14) and the discharge pipe (2), a circular ring (20) rotatably matched with the circular chute (19) is arranged on the discharge pipe (2), a transmission device is arranged on the cylinder (, when the cylinder (14) is driven by the pulley set (10) to rotate through the transmission device, the blocking plates (18) can be gathered or diffused towards the central position, and therefore the effect of enlarging or reducing the opening of the switch valve (11) is achieved.

3. The alumina conveying system of claim 2 wherein the transmission comprises: the worm wheel (21) and the worm wheel (21) are sleeved on the outer wall of the transverse side of the cylinder (14) and are matched with the worm (22) installed on the discharge pipe (2) in a rotating mode, the belt pulley set (10) comprises a first belt pulley (23) coaxially rotating with the gear (34), and a belt (25) is connected between the second belt pulley (24) and the first belt pulley (23) and the second belt pulley (24) sleeved on the longitudinal side of the worm (22).

4. The filtering and impurity-removing device of the alumina conveying system according to claim 1, wherein two lateral walls in the recovery box (3) are provided with rectangular sliding holes (26) extending vertically, the bottom of the screen frame (4) is vertically and slidably connected with the rectangular sliding holes (26) matched with the bottom of the recovery box through rectangular plates (27), and one end of the first spring (5) is connected with the rectangular plates (27) and the other end is connected with the bottom wall of the rectangular sliding holes (26).

5. The filtering and impurity-removing device of the alumina conveying system according to claim 4, wherein a rectangular frame (28) is arranged in the screen frame (4), first rectangular sliding cavities (29) which are in transverse sliding fit with the rectangular frame (28) are arranged at the two transverse ends of the screen frame (4), the screen is arranged in the rectangular frame (28), second rectangular sliding cavities (30) which are in sliding fit with the rectangular frame (28) are arranged on one longitudinal side of the screen frame (4), one end of the rectangular frame (28) is fixedly connected with a rectangular toothed frame (31) in the second rectangular sliding cavities (30), a half gear (32) which is matched with the rectangular toothed frame (31) is rotatably arranged on the bottom wall of the second rectangular sliding cavities (30), and the half gear (32) is driven by a motor (33) arranged on the bottom wall of the screen frame (4).

6. The alumina conveying system filtering and impurity removing device according to claim 5, characterized in that the trigger plate (6) is provided with a first conducting strip and the horizontal part of the U-shaped rod (7) matched with the trigger plate (6) is provided with a second conducting strip, the first conducting strip and the second conducting strip are connected in series in a voltage stabilizing loop arranged on the recovery box (3) and are matched with each other to form a switch of the motor (33), the motor (33) works when the two conducting strips are contacted and the motor (33) stops working when the two conducting strips are separated.

7. A filter and impurity removal device of an alumina conveying system according to claim 1, wherein the angle between the screen frame (4) and the horizontal plane is set to be 30-40 degrees.