CN115025986A - Online anti-blocking nut coke filter device and filtering method - Google Patents

Abstract

The invention discloses an online anti-blocking coke oven filter device which comprises a coke oven filter cylinder, a feeding hopper, a first filter plate, a second filter plate, a paddle rotor and a shaking mechanism, wherein the filter cylinder comprises a feeding hole and a discharging hole which are arranged at intervals, the first filter plate and the second filter plate are arranged at intervals in the vertical direction and slide in an inner cavity of the coke oven filter cylinder relatively, the paddle rotor is arranged in the feeding hole corresponding to the feeding hopper, a rotating shaft of the paddle rotor is connected with a power input end of the shaking mechanism, and an output end of the shaking mechanism drives the first filter plate and the second filter plate to shake vertically. The coke dices which are piled up and loaded can generate kinetic energy under the action of gravity, so that the first filter plate and the second filter plate can shake under the self-driving effect, filter holes are dredged, and the problem that when the coke dices are blocked, the filter screen is dredged manually frequently, and the efficiency is extremely low is solved.

Description

Online anti-blocking nut coke filter device and filtering method

Technical Field

The invention belongs to the technical field of coke breeze production, and particularly relates to an online anti-blocking coke breeze filter device and a filtering method.

Background

The coke undersize, namely coke return, used by the blast furnace is secondarily screened and filtered under the action of the coke vibrating screen for blast furnace production, the screened and filtered coke is fed into the blast furnace again for smelting, the undersize is coke powder and is returned to a sintering workshop for use, the phenomenon of filter screen blockage frequently occurs in the screening and filtering process, the quality of the filtered coke is unqualified, and the requirement on the coke is strict, and the blockage rate of the filter screen cannot be more than 10%. Especially, the performance is more prominent in summer, and the blockage of the coke screen by the wet coke powder is quite serious.

The problems of the existing nut coke filter are that: the filter screen needs to be dredged manually frequently when the blockage occurs, the machining interval is large when the efficiency is extremely low, the production speed is low, the yield is reduced, the labor consumption is increased, and the phenomenon that the factory resources are wasted due to intermittent machining when the whole machining process is influenced is caused.

Disclosure of Invention

The purpose of the invention is as follows: in order to overcome the defects in the prior art, the invention provides an online anti-blocking nut coke filter device and a filtering method, which can effectively prevent a filter screen from being blocked and improve the overall working efficiency.

The technical scheme is as follows: in order to achieve the purpose, the technical scheme of the invention is as follows:

the utility model provides an online prevent jack-up jiao ding filter equipment, includes jack-up filter barrel, feeding funnel, first filter plate, second filter plate, oar piece rotor and shake mechanism, filter the feed inlet and the discharge gate that the barrel contained interval setting from top to bottom, first filter plate, second filter plate are in vertical interval setting, and the homogeneous phase relative slip is in the inner chamber of jack-up filter barrel, be provided with the oar piece rotor corresponding to the feeding funnel in the feed inlet, the oar piece rotor passes through the inflow jack-up granule in the feeding funnel for the barrel rotation, the axis of rotation of oar piece rotor is connected the setting with the power input end of shake mechanism, the first filter plate of output drive of shake mechanism and second filter plate shake in vertical.

Further, the shaking mechanism comprises a driving mechanism and a shaking rod, the input end of the driving mechanism is connected to the rotating shaft, the output end of the driving mechanism is provided with the shaking rod, the shaking rod is in up-and-down reciprocating displacement in an inner cavity of the vent of the coke filter, and the shaking rod is respectively corresponding to the first filter plate and the second filter plate.

Further, actuating mechanism includes the driving disc, the driving disc passes through the rotation axis and rotates the setting on the feeding funnel, the offset is provided with the slide bar in the rotation axis is fixed on the driving disc, the outside cover of slide bar is equipped with annular transmission frame, be provided with spacing on the feeding funnel, spacing inboard and transmission frame slide on vertical and match the setting, reciprocal jacking transmission frame displacement during slide bar follow-up driving disc, the top fixed connection of transmission frame and shaking rod, the axis of rotation is passed through driving belt and is connected with the rotation axis transmission.

Further, a bumping frame is arranged on the shaking rod and below the first filter plate, and the top of the bumping frame is in contact with the bottom of the first filter plate; the bumping frame supports the first filter plate to bump up and down.

Furthermore, a plurality of check blocks are circumferentially distributed on the wall of the inner cavity of the cylinder body of the coke filter and are positioned above the first filter plate, and the check blocks limit the stroke end point of the upward jumping of the first filter plate.

Furthermore, the inboard of spacing has seted up the spacing groove corresponding to the vertical arm of transmission frame, the transversal trapezoidal setting of personally submitting of spacing groove, the equal fixedly connected with in both sides of transmission frame and spacing groove adaptation and sliding connection's stopper.

Further, the first filter plate comprises an outer support frame and a filter screen arranged at the inner ring of the outer support frame, and the outer support frame is arranged in a sliding manner relative to the inner wall clearance of the coke filter cylinder body; a filter plate deformation mechanism is arranged in the inner cavity of the coke filter cylinder body and corresponds to the bottom of the first filter plate, and the filter plate deformation mechanism drives the plate body of the first filter plate to deform in an undulating manner in the normal direction; the filter plate in the deformation state discharges coke particles blocked in the filter holes.

Furthermore, the filter plate deformation mechanism comprises a driving rod, a swinging rod, a scraping plate and a fixed support shaft, one end of the driving rod is arranged on the swinging rod, the other end of the driving rod faces to the center area of the inner cavity, the fixed support shaft is arranged at an interval between the first filter plate and the inner wall of the cylinder body of the coke filter, a rotating sleeve is arranged on the rod body of the swinging rod, the rotating sleeve rotates on the fixed support shaft in an elastic reset mode, the top end of the swinging rod is arranged corresponding to the bottom surface of the first filter plate, the scraping plate parallel to the first filter plate is arranged at the top end of the swinging rod, the bottom end of the swinging rod is arranged corresponding to the free end of the driving rod, and the driving rod drives the swinging rod to swing in a reciprocating mode in the vertical plane through the vertical displacement action of the swinging rod; in the shaking process of the first filter plate, the scraping plates periodically contact the bottom surface of the first filter plate from outside to inside and then from inside to outside.

Further, be provided with the fixed plate on the fixed axle that props, the bottom of swinging arms resets through elasticity and connects on the fixed plate, actuating lever downward displacement and drive swinging arms compress when rotating elasticity resets, the swinging arms rotates when the actuating lever upwards displaces and resets.

A filtering method of an online anti-blocking nut coke filter device comprises the steps that nut coke powder is poured into the online anti-blocking nut coke filter device through a feeding hopper, then the nut coke powder is accumulated on a blade of a blade rotor by self weight, the blade is pressed by weight and then drives a rotating shaft and the blade rotor to rotate, and meanwhile, the nut coke powder gradually scatters on a first filter plate for filtering;

the rotating shaft drives the rotating shaft to rotate through a driving belt, the sliding rod is driven to rotate around the rotating shaft through the driving disc, the sliding rod drives the driving frame to move along with the rotating shaft, the driving frame moves up and down after being limited by the limiting frame, and the driving frame moves up and down to drive the shaking rod to move up and down, so that the first filter plate and the second filter plate shake up and down;

when the shaking rod shakes up and down to move, the driving rod follows up and drives the swinging rod to swing back and forth in the vertical plane under the action of elastic reset rotation, and when the swinging rod swings, the scraper periodically contacts the bottom surface of the first filter plate;

after the nut coke powder falls on the filter screen of first filter plate from the feeding funnel, nut coke powder self weight makes the filter screen mid portion atress the biggest, and produces the downward protrusion of certain range, and when the scraper blade from outside to inboard wobbling in-process, can make the filter screen body of bulge produce vertical and horizontal deformation simultaneously, and the nut coke granule that is blockked up in the filter screen is discharged at deformation in-process.

Has the advantages that: according to the invention, the paddle rotor is arranged, so that the coke dices accumulated and loaded can generate kinetic energy under the action of gravity, the first filter plate and the second filter plate can shake under self-driving, and further filter holes are dredged, and the problems that the filter screen needs to be dredged frequently by manpower when being blocked, the processing interval is large, the production speed is low, the yield is reduced, the manpower consumption is increased, and the phenomenon that the factory resources are wasted due to the influence of the intermittent processing caused by the whole processing flow is solved.

Drawings

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

FIG. 2 is an internal structural view of the overall structure of the present invention;

FIG. 3 is a schematic structural diagram of a first filter plate, a second filter plate and a shaking rod of the present invention;

FIG. 4 is a schematic structural view of the blade rotor and drive mechanism of the present invention;

FIG. 5 is a schematic structural view of a filter plate deformation mechanism according to the present invention;

FIG. 6 is a schematic view of the positions of the drive and swing levers of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

As shown in the attached drawings 1 to 4, an online anti-blocking nut coke filter device comprises a nut coke filter cylinder 1, a feeding hopper 2, a first filter plate 4, a second filter plate 5, a blade rotor 7 and a shaking mechanism, wherein the filter cylinder 1 comprises a feeding port and a discharging port which are arranged at an upper interval and a lower interval, the feeding port is provided with the feeding hopper 2, the discharging port is provided with a discharging pipe 3, the first filter plate 4 and the second filter plate 5 are arranged at an upper interval in the vertical direction and relatively slide in an inner cavity of the nut coke filter cylinder 1, the first filter plate 4 is arranged below the feeding hopper 2 at an interval, the second filter plate 5 is arranged in the discharging pipe 3 or the discharging port, the feeding port is internally provided with the blade rotor 7 corresponding to the feeding hopper 2, the blade rotor 7 comprises a rotating shaft 6 and blades which are arranged on the outer side of the rotating shaft in a plurality of circumferential arrays, the blade rotor 7 rotates relative to the cylinder through inflow nut coke particles in the feeding hopper, the rotating shaft 6 of the paddle rotor 7 is connected with the power input end of the shaking mechanism, and the output end of the shaking mechanism drives the first filter plate 5 and the second filter plate 5 to shake vertically. Can make the burnt butyl of piling up the material loading produce kinetic energy under the action of gravity through setting up the blade rotor to make first filter plate and second filter plate shake from top to bottom through actuating mechanism self-driven, and then dredge the filtration pore, need artifical frequent mediation filter screen when having solved the jam, still it is big still to lead to processing intermittent type when the efficiency is extremely low, and production speed is slow, reduces output and increase human consumption, leads to whole processing flow to receive the problem that influences the phenomenon of the extravagant factory resource of intermittent type processing.

The shake mechanism includes actuating mechanism 11 and shake pole 12, actuating mechanism's input is connected in axis of rotation 6, and the front end of axis of rotation 6 runs through feeding funnel 2 and extends to the front side fixedly connected with drive shaft 8 of feeding funnel 2, fixedly connected with connecting plate 9 on 2 lateral walls of feeding funnel, and the positive movable mounting of connecting plate 9 has rotation axis 10, and rotation axis 10 is connected with actuating mechanism 11, actuating mechanism 11's output is provided with shake pole 12, just shake pole 12 is middle and upper, lower reciprocating displacement in the inner chamber of 1 is ventilated at the burnt butyl filter, shake pole 12 sets up corresponding to first filter plate 4 and second filter plate 5 respectively, turns into the up-and-down motion through actuating mechanism 11 with the circular motion of oar piece rotor to make shake pole 12 shake from top to bottom in vertical going on.

As shown in fig. 2 to fig. 4, actuating mechanism 11 includes drive plate 111, drive plate 111 rotates through rotation axis 10 and sets up on the feeding funnel, the offset distance is provided with slide bar 112 in rotation axis 10 is fixed on drive plate 111, the outside cover of slide bar 112 is equipped with annular transmission frame 113, transmission frame 113 is the rectangle frame structure, be provided with spacing 114 on the feeding funnel 2, the inboard and the transmission frame 113 of spacing 114 slide the matching setting vertically, reciprocal jacking transmission frame 114 displacement during slide bar 112 follow-up drive plate 111, the top fixed connection of transmission frame 113 and twitter pole 12, the axis of rotation 6 passes through drive belt 115 and is connected with rotation axis 10 transmission, and actuating mechanism 11 is cam formula mechanism.

Limiting groove 19 has been seted up corresponding to the vertical arm of transmission frame 113 to the inboard of spacing 114, the transversal trapezoidal setting of personally submitting of limiting groove 19, transmission frame 113's the equal fixedly connected with in both sides and limiting groove 19 adaptation and sliding connection's stopper 20. The limit block 20 can slide up and down through the limit groove 19 arranged in a trapezoid shape and cannot incline or move back and forth, so that the transmission stability is improved.

A bumping frame 18 is arranged on the shaking rod 12 and below the first filter plate 4, and the top of the bumping frame 18 is contacted with the bottom of the first filter plate 4; the pitching frame 18 supports the first filter plate 4 to pitch up and down. The first filter plate 4 can be lifted upwards by the bumping frame 18, so that the first filter plate 4 can realize bumping and anti-blocking effects.

A plurality of stop blocks 15 are circumferentially distributed on the wall of the inner cavity of the coke filter cylinder body 1, the stop blocks 15 are located above the first filter plate 4, and the stop blocks 15 limit the stroke end point of the upward jumping of the first filter plate 4. The bottom fixedly connected with block rubber of dog 15 can carry on spacingly to the top of first filter plate 4 through setting up dog 15, and the block rubber can reduce mechanical impact simultaneously, guarantees the stability of jolting the mediation at every turn of first filter plate 4, promotes its life-span.

The bottom fixedly connected with synchronizing rod 16 of whipping pole 12, synchronizing rod 16 keep away from one end of whipping pole 12 and the cooperation of pegging graft of one side at second filter plate 5 top, and 16 one end of synchronizing rod runs through second filter plate 5 and extends to the bottom of second filter plate 5, the free end of synchronizing rod includes the screw thread section and is connected with nut 17.

Can carry on spacingly to second filter plate 5 through synchronizing bar 16 and nut 17 cooperation, prevent that second filter plate 5 from dropping downwards, accessible nut 17 drives second filter plate 5 and upwards mentions the realization effect of jolting simultaneously.

As shown in fig. 5 and fig. 6, the first filter plate 4 includes an outer support frame 41 and a filter screen 42 disposed at an inner ring of the outer support frame 41, the filter screen is made of iron wire or high-toughness gauze, and the outer support frame 41 is slidably disposed relative to an inner wall gap of the cylinder 1 of the coke filter; the discharge port of the feeding hopper 2 corresponds to the middle area of the first filter plate, after the coke powder falls onto the filter screen of the first filter plate 4 from the feeding hopper 2, the coke powder is weighted to enable the middle part of the filter screen to be stressed maximally and to protrude downwards with a certain range, the coke powder is easily clamped into the filter holes, and when the humidity of the coke powder is high, the filter holes cannot be dredged completely in the shaking process, a filter plate deformation mechanism is arranged in the inner cavity of the coke filter cylinder 1 corresponding to the bottom of the first filter plate 4 and drives the plate body of the first filter plate 4 to be deformed in a fluctuant manner in the normal direction; the filter plate under the deformation state discharges the burnt butyl granule of jam in the filter orifice, makes the filter screen produce certain bending through undulant deformation, and then makes the filter orifice shape stretched or extrudeed, and the burnt butyl powder in the filter orifice is pulled apart or crowded garrulous to under the combined action of shake, discharge the burnt butyl powder in the filter orifice, and then dredge the filter orifice.

The filter plate deformation mechanism comprises a driving rod 31, a swing rod 32, a scraper 34 and a fixed supporting shaft 33, one end of the driving rod 31 is arranged on the shaking rod 12, the other end of the driving rod is arranged towards the center region of the inner cavity, the fixed supporting shaft 33 is arranged on the inner wall of the coke filter cylinder 1 at intervals from the first filter plate 4, the fixed supporting shaft 33 is arranged on the radial line of the coke filter cylinder, the rod body of the swing rod 32 comprises a rotating sleeve 38, the elastic reset type rotation of the rotating sleeve 38 is arranged on the fixed supporting shaft 33, for example, the elastic reset is realized by sleeving a torsion spring on the fixed supporting shaft or arranging a reset spring at the end part of the swing rod, the top end of the swing rod 32 is arranged corresponding to the bottom surface of the first filter plate 4, the top end of the swing rod 32 is provided with the scraper 34 parallel to the first filter plate, the scraper 34 is arranged along the radial direction of the coke filter cylinder, the bottom end of the swing rod 32 is arranged corresponding to the free end of the driving rod 31, and the driving rod 31 drives the swing rod 32 to swing back and forth in the vertical plane through the up-and-down displacement action of the shaking rod 12; during the shaking process of the first filter plate 4, the scraper 32 periodically contacts the bottom surface of the first filter plate 4 from outside to inside and then from inside to outside, so as to deform and extrude the downward convex part of the filter screen.

The end of the bottom end of the swing lever 32 is provided with a contact plate 37, the contact plate 37 and the swing lever 32 are in an acute angle type V-shaped structure, and the contact plate 37 is in contact with the free end of the driving rod 31 and is positioned to ensure that the swing lever 32 can be always in contact with the driving rod without being separated in the swing process.

Be provided with the fixed plate 35 that is the L type on the fixed axle 33 that props, the bottom of swinging arms 32 is passed through elasticity piece 36 elastic connection that resets on fixed plate 35, actuating lever 31 displacement down and drive swinging arms compress when rotating elasticity piece 36, elasticity piece 36 that resets are reset spring, the swinging arms rotates when actuating lever 31 upwards displaces and resets.

A filtering method of an online anti-blocking nut coke filter device comprises the steps that nut coke powder is poured into the online anti-blocking nut coke filter device through a feeding hopper 2, then the nut coke powder is accumulated on a blade of a blade rotor 7 by self weight, the blade is pressed by weight and then drives a rotating shaft 6 and the blade rotor to rotate, and meanwhile, the nut coke powder gradually scatters on a first filter plate for filtering;

the rotating shaft 6 drives the rotating shaft 10 to rotate through a driving belt, and drives the sliding rod 112 to rotate around the rotating shaft through a driving disc, the sliding rod 112 drives the driving frame 113 to move along when rotating, the driving frame 113 moves up and down after being limited by the limiting frame, the driving frame 113 moves up and down to drive the shaking rod 12 to move up and down, and the first filter plate and the second filter plate shake up and down;

while the shaking rod 12 is shaking and displacing up and down, the driving rod 31 follows, and drives the swinging rod 32 to swing back and forth in the vertical plane under the action of elastic reset rotation, and when the swinging rod 32 swings, the scraper 34 is periodically contacted with the bottom surface of the first filter plate 4;

after the nut coke powder falls on the filter screen of first filter plate from the feeding funnel, nut coke powder self weight makes the filter screen mid portion atress the biggest, and produces the downward protrusion of certain range, and when the scraper blade from outside to inboard wobbling in-process, can make the filter screen body of bulge produce vertical and horizontal deformation simultaneously, and the nut coke granule that is blockked up in the filter screen is discharged at deformation in-process.

The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention, and such modifications and adaptations are intended to be within the scope of the invention.

Claims (10)

1. The utility model provides an online prevent jack-knife filter device of jam which characterized in that: including burnt butyl filter barrel (1), feeding funnel (2), first filter plate (4), second filter plate (5), oar piece rotor (7) and shake mechanism, filter the feed inlet and the discharge gate that barrel (1) contained the interval setting from top to bottom, first filter plate (4), second filter plate (5) are at vertical interval setting, and homogeneous phase relative slip in the inner chamber of burnt butyl filter barrel (1), be provided with oar piece rotor (7) corresponding to feeding funnel (2) in the feed inlet, the oar piece rotor (7) are through the inflow burnt butyl granule relative to the barrel rotation in the feeding funnel, axis of rotation (6) of oar piece rotor (7) are connected the setting with the power input end of shake mechanism, the output drive first filter plate (5) of shake mechanism and second filter plate (5) are at vertical shake.

2. The on-line anti-clogging nutsche filter apparatus of claim 1 wherein: the shaking mechanism comprises a driving mechanism (11) and a shaking rod (12), the input end of the driving mechanism is connected to a rotating shaft (6), the output end of the driving mechanism (11) is provided with the shaking rod (12), the shaking rod (12) is subjected to upper and lower reciprocating displacement in an inner cavity of a vent (1) of the nut cracker, and the shaking rod (12) is respectively arranged corresponding to a first filter plate (4) and a second filter plate (5).

3. The on-line anti-clogging nutsche filter apparatus of claim 2 wherein: actuating mechanism (11) are including driving plate (111), driving plate (111) are rotated through rotation axis (10) and are set up on last hopper, offset is provided with slide bar (112) in rotation axis (10) is fixed on driving plate (111), the outside cover of slide bar (112) is equipped with annular transmission frame (113), upward be provided with spacing (114) on hopper (2), the inboard and transmission frame (113) of spacing (114) slide the matching setting on vertical, reciprocal jacking transmission frame (114) displacement during slide bar (112) follow-up driving plate (111), the top fixed connection of transmission frame (113) and jitter pole (12), axis of rotation (6) are connected with rotation axis (10) transmission through driving belt (115).

4. The on-line anti-clogging nutsche filter apparatus of claim 3 wherein: a bumping frame (18) is arranged on the shaking rod (12) and positioned below the first filter plate (4), and the top of the bumping frame (18) is contacted with the bottom of the first filter plate (4); the bumping frame (18) supports the first filter plate (4) to bump up and down.

5. The on-line anti-clogging nutsche filter apparatus of claim 4 wherein: a plurality of check blocks (15) are circumferentially distributed on the wall of an inner cavity of the coke filter cylinder body (1), the check blocks (15) are located above the first filter plate (4), and the check blocks (15) limit the stroke end point of the upward jumping of the first filter plate (4).

6. The on-line anti-clogging nutsche filter apparatus of claim 3 wherein: the inboard of spacing (114) has seted up spacing groove (19) corresponding to the vertical arm of transmission frame (113), the transversal trapezoidal setting of personally submitting of spacing groove (19), the equal fixedly connected with in both sides of transmission frame (113) and spacing groove (19) adaptation and sliding connection's stopper (20).

7. An online anti-clogging filter apparatus for nut coke according to claim 3 wherein: the first filter plate (4) comprises an outer support frame (41) and a filter screen (42) arranged at the inner ring of the outer support frame (41), and the outer support frame (41) is arranged in a sliding mode relative to the gap of the inner wall of the coke filter cylinder body (1); a filter plate deformation mechanism is arranged in the inner cavity of the nut filter cylinder body (1) corresponding to the bottom of the first filter plate (4), and drives the plate body of the first filter plate (4) to deform in an undulated manner in the normal direction; the filter plate in the deformation state discharges coke particles blocked in the filter hole.

8. An online anti-clogging fondue filter apparatus according to claim 7, wherein: the filter plate deformation mechanism comprises a driving rod (31), a swinging rod (32), a scraper (34) and a fixed support shaft (33), one end of the driving rod (31) is arranged on the shaking rod (12), the other end of the supporting shaft is arranged towards the central area of the inner cavity, the fixed supporting shaft (33) is fixedly arranged on the inner wall of the coke filter cylinder body (1) at intervals of the first filter plate (4), the body of the swing rod (32) comprises a rotating sleeve (38), the rotating sleeve (38) elastically resets and rotates on the fixed supporting shaft (33), the top end of the swing rod (32) is arranged corresponding to the bottom surface of the first filter plate (4), the top end of the swing rod (32) is provided with a scraper (34) parallel to the first filter plate, the bottom end of the swing lever (32) is arranged corresponding to the free end of the driving lever (31), the driving rod (31) drives the swinging rod (32) to swing back and forth in the vertical plane through the vertical displacement action of the shaking rod (12); during the shaking process of the first filter plate (4), the scraper (32) periodically contacts the bottom surface of the first filter plate (4) from outside to inside and then from inside to outside.

9. An online anti-clogging fondue filter apparatus according to claim 8, wherein: be provided with fixed plate (35) on fixed stay (33), the bottom of swinging arms (32) is through elasticity reset (36) elastic connection on fixed plate (35), compress when actuating lever (31) downward displacement and drive swinging arms rotate elasticity reset (36), the swinging arms rotates when actuating lever (31) upward displacement and resets.

10. The method of claim 8 wherein the at least one filter is selected from the group consisting of: the method comprises the steps that the nut coke powder is poured into a feeding hopper (2), then the nut coke powder is stacked on a blade of a blade rotor (7) by self weight, the blade is pressed by weight and then drives a rotating shaft (6) and the blade rotor to rotate, and meanwhile the nut coke powder is gradually scattered on a first filter plate for filtering;

the rotating shaft (6) drives the rotating shaft (10) to rotate through a driving belt, and drives the sliding rod (112) to rotate around the rotating shaft through a driving disc, the sliding rod (112) drives the driving frame (113) to move along with the rotating shaft, the driving frame (113) moves up and down after being limited by the limiting frame, the driving frame (113) moves up and down to drive the shaking rod (12) to move up and down, and up and down shaking of the first filter plate and the second filter plate is realized;

when the shaking rod (12) shakes up and down for displacement, the driving rod (31) follows, and drives the swinging rod (32) to swing back and forth in the vertical plane under the action of elastic reset rotation, and when the swinging rod (32) swings, the scraper (34) is periodically contacted with the bottom surface of the first filter plate (4);

after the nut coke powder falls on the filter screen of first filter plate from the feeding funnel, nut coke powder self weight makes the filter screen mid portion atress the biggest, and produces the downward protrusion of certain range, and when the scraper blade from outside to inboard wobbling in-process, can make the filter screen body of bulge produce vertical and horizontal deformation simultaneously, and the nut coke granule that is blockked up in the filter screen is discharged at deformation in-process.

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