CN114602805B

CN114602805B - Screening equipment for silver-lead ore dressing

Info

Publication number: CN114602805B
Application number: CN202210223520.3A
Authority: CN
Inventors: 常秀芹
Original assignee: Qinhuangdao Yougema Industry Technology Co ltd
Current assignee: Qinhuangdao Yougema Industry Technology Co ltd
Priority date: 2022-03-09
Filing date: 2022-03-09
Publication date: 2023-05-09
Anticipated expiration: 2042-03-09
Also published as: CN114602805A

Abstract

The invention discloses screening equipment for silver-lead ore dressing, which relates to the field of mineral processing and comprises the following components: the device comprises a frame, a crushing bin, a screening bin, a fan and a dust removal bin; the frame carries a working part; the crushing bin is arranged in the frame and above the frame; the screening bin is positioned right below the crushing bin; the fan is arranged below the screening bin, and the crushing bin, the screening bin and the fan are positioned on the same axis; the dust removal bin is arranged on the outermost layer inside the frame, and the crushing bin, the screening bin and the fan are wrapped in space.

Description

Screening equipment for silver-lead ore dressing

Technical Field

The invention relates to the field of mineral processing after mining, in particular to screening equipment for silver-lead ore dressing.

Background

After the silver-lead concentrate is mined, a series of treatments are needed, and the treatment process mainly comprises crushing, screening, ball milling and flotation. When mineral separation and screening are carried out, jigs, shaking tables and the like are generally used, and the problems of low space utilization rate, large occupied area, heavy floating dust, low processing efficiency and the like exist in the equipment.

Accordingly, there is a need to provide a screening apparatus for silver-lead ore tailings to solve the problems set forth in the background art described above.

Disclosure of Invention

In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a screening equipment for silver lead ore dressing is used, includes a screening equipment for silver lead ore dressing, its characterized in that: comprising the following steps: the device comprises a frame, a crushing bin, a screening bin, a fan and a dust removal bin;

the frame carries a working part; the crushing bin is arranged in the frame and above the frame; the screening bin is positioned right below the crushing bin; the fan is arranged below the screening bin, and the crushing bin, the screening bin and the fan are positioned on the same axis; the dust removal bin is arranged on the outermost layer inside the frame, and the crushing bin, the screening bin and the fan are wrapped in space.

Further, preferably, the frame includes: the device comprises a base, a rotating head, an input port, a water injection head and a rotating shaft;

the base is positioned at the lowest part of the frame, the rotating shaft is connected to the upper part of the base, the rotating shaft penetrates through the middle of the crushing bin, the screening bin and the fan and is connected with the rotating head after penetrating through the crushing bin, the input ports are symmetrically arranged at two sides of the rotating head, and the water injection heads are arranged on a plane fixed by the input ports;

further, preferably, the crushing bin includes:

the crushing rotating heads are coaxially fixed on the rotating shafts in a plurality of groups, and can perform rotating operation;

the coarse filter plate is arranged below the crushing rotary head and separates the crushing bin from the screening bin;

wherein, the broken rotor with there is the space between the coarse filtration board.

Further, preferably, the screening bin includes: the device comprises a separation plate, a vibrating part, a transmission gear, a fine filter plate, a positioning umbrella, a vibrating assisting part and a discharge port;

the fine filter plates are arranged below the side surfaces of the crushing bin, the screening bin is separated from the dust removal bin, a plurality of groups of vibration assisting components are arranged below the coarse filter plates, and the vibration assisting components are connected above the fine filter plates and are in contact with the coarse filter plates and the fine filter plates; the positioning umbrella is coaxially fixed on the rotating shaft and is positioned below the coarse filter plate;

the transmission gear is fixed on the rotating shaft and positioned below the fan, and is eccentrically arranged when being arranged; and a plurality of groups of vibration parts are uniformly distributed on the isolating plate at intervals, and the vibration parts are positioned close to the fine filter plate.

Further, preferably, the fan includes:

the device comprises a rotary fan, a winnowing brush, a mounting seat, a discharge hole, a wind storage bin, an air outlet, a fan frame, a choke compartment, a temporary board and a winnowing hole;

the winnowing brush is coaxially fixed on the rotating shaft and is positioned below the positioning umbrella, the temporary plate is arranged below the winnowing brush, the rotating shaft passes through the temporary plate, and a plurality of groups of winnowing holes are formed in the temporary plate; the fan frame is connected below the temporary board;

the plurality of groups of rotating fans are fixed on the rotating shaft and are positioned above the transmission gear, the fan frame is internally provided with the air storage bins between every two of the plurality of groups of rotating fans, the upper part of the rotating fans is connected with the air blocking compartment, and a plurality of groups of air outlets are distributed on the air blocking compartment;

the position of the winnowing hole corresponds to the air outlet;

further, preferably, the dust removal bin includes:

the water storage layer is arranged in the rack and is positioned below the water injection head;

the dust pressing spray head is arranged below the water storage layer and above the crushing rotary head;

the drain hole is arranged on the base and is positioned at the position of the outermost ring of the base corresponding to the dust removal bin.

Further, preferably, the vibration member includes: the device comprises a transmission rod, a filling block, a rotary convex head, an assembly cylinder, a rotary guide rail, a pause port, a vibration spring, a contact circular table and a contact ball;

the transmission rod is sleeved with the assembly cylinder, the filling block and the vibration spring sleeved on the transmission rod are arranged in the assembly cylinder, one end of the vibration spring is propped against the inner wall of the assembly cylinder, the other end of the vibration spring is propped against the filling block, one end, close to the thin filter plate, of the transmission rod is connected with the contact round table, and the other end of the transmission rod is connected with the contact ball;

and the inner wall of the assembly cylinder is provided with the rotary guide rails in a v shape, pause openings are formed at the intersections of the rotary guide rails, the filling blocks are provided with the rotary raised heads, and the rotary raised heads move in the rotary guide rails.

Further, preferably, the resonance member further includes: the device comprises a guide rod, a transmission shaft sleeve, a contact head, an operation sleeve, a blocking protrusion, a fixing sleeve, a dividing rod, a resonance head, a transmission spring and a mounting rod;

the two ends of the guide rod are connected with the contact heads, the driving shaft sleeve is sleeved outside the guide rod, the operation sleeve is arranged in the contact heads and wraps the driving shaft sleeve, and meanwhile, the operation sleeve is provided with the blocking protrusion to define the track range of the driving shaft sleeve;

the contact head is internally provided with the dividing rod, two ends of the guide rod are connected with the dividing rod, and a transmission spring is distributed on the other side of the dividing rod close to the fine filter plate;

the operation cover outside parcel fixed cover, and be close to be connected with on the fixed cover of coarse filter plate the installation pole, the installation pole other end is connected fine filter plate top.

Compared with the prior art, the invention provides the screening equipment for the silver-lead ore dressing, which has the following beneficial effects:

according to the embodiment of the invention, the rotation of the rotating shaft drives the screening equipment to complete the functions of crushing, screening, dedusting and the like, products are discharged from different output positions, and the rotation drives ores, so that the minerals are screened according to the quality under the condition of the same crushing grade because the densities of different mineral sundries are different, primary screened objects, secondary screened objects and waste materials are discharged simultaneously, the operation space is reduced, the efficiency is greatly improved, gangue and the like existing in the follow-up process are removed through floatation, and meanwhile, because the water is used for pressing small-particle dust and discharging the small-particle dust through water flow, the floating dust problem in screening is effectively reduced.

Drawings

Description of the invention

FIG. 1 is a schematic cross-sectional view of a screening apparatus for silver-lead ore tailings;

FIG. 2 is a schematic top view of a base of a screening apparatus for silver-lead ore tailings;

FIG. 3 is a schematic diagram of a blower of a screening apparatus for silver-lead ore tailings;

FIG. 4 is a schematic diagram of the structure of a resonance component of a screening apparatus for silver-lead ore dressing;

FIG. 5 is a schematic diagram of the vibrating components of a screening apparatus for silver-lead ore tailings;

FIG. 6 is an assembled cylindrical schematic of the vibrating components of a screening apparatus for silver-lead ore tailings;

in the figure: 1. a frame; 2. crushing bin; 3. a screening bin; 4. a blower; 5. a dust removal bin; 11. a base; 12. a rotating head; 13. an input port; 14. a water injection head; 15. a rotation shaft; 21. crushing the rotary head; 22. a coarse filter plate; 31. a partition plate; 32. a vibration member; 321. a transmission rod; 3211. filling blocks; 322. assembling a cylinder; 3221. rotating the guide rail; 32211. a pause port; 323. a vibration spring; 324. contacting the round table; 325. a contact ball; 33. a transmission gear; 34. fine filter plates; 35. positioning an umbrella; 36. a resonance member; 361. a guide rod; 362. a driving sleeve; 363. a contact; 3621. a working sleeve; 36211. a blocking protrusion; 3632. a fixed sleeve; 3633. a dividing rod; 3634. a resonance head; 364. a transmission spring; 365. a mounting rod; 37. a discharge port; 41. a rotary fan; 42. a winnowing brush; 43. a mounting base; 431. a discharge port; 44. a wind storage bin; 45. an air outlet; 46. a fan frame; 47. a choke compartment; 48. a temporary board; 481. a winnowing hole; 51. a water storage layer; 52. dust pressing spray heads; 53. and a drain hole.

Detailed Description

Referring to fig. 1 to 5, in an embodiment of the present invention, a screening apparatus for silver-lead ore dressing includes:

the device comprises a frame 1, a crushing bin 2, a screening bin 3, a fan 4 and a dust removal bin 5;

the frame 1 carries working parts; the crushing bin 2 is arranged inside the frame 1 and above the inside of the frame 1; the screening bin 3 is positioned right below the crushing bin 2; the fan 4 is arranged below the screening bin 3, and the crushing bin 2, the screening bin 3 and the fan 4 are positioned on the same axis; the dust removal bin 5 is arranged on the outermost layer inside the frame 1, and is used for spatially wrapping the crushing bin 2, the screening bin 3 and the fan 4.

In this embodiment, as shown in fig. 1, the rack 1 includes:

a base 11, a rotating head 12, an input port 13, a water injection head 14 and a rotating shaft 15;

the base 11 is positioned at the lowest part of the frame, the upper part of the base is connected with the rotating shaft 15, the rotating shaft 15 passes through the middle of the crushing bin 2, the screening bin 3 and the fan 4 and is connected with the rotating head 12 after passing through the crushing bin 2, the input ports 13 are symmetrically arranged at two sides of the rotating head 12, and the water injection heads 14 are arranged on a plane fixed by the input ports 13;

it should be noted that a gap exists between the input port 13 and the water injection head 14 to prevent small ore particles from being mixed in during water injection; in addition, the rotary head 12 can be driven by external power to rotate the rotary shaft 15, and in addition, it should be noted that when in implementation, the water pump can be connected with the external power at the same time when the rotary head 12 is driven, so that no floating dust is generated during operation.

In this embodiment, as shown in fig. 1, the crushing bin 2 includes:

a crushing rotor 21, a plurality of groups of which are coaxially fixed to the rotary shaft 15 and which can perform a rotary operation;

a coarse filter plate 22 installed below the crushing rotor 21 and separating the crushing bin 2 from the screening bin 3;

wherein a gap exists between the crushing rotor 21 and the coarse filter 22, and the size of the gap depends on the granularity of the mineral to be sieved.

In this embodiment, as shown in fig. 1, the screening bin 3 includes: the separator 31, the vibration part 32, the transmission gear 33, the fine filter plate 34, the positioning umbrella 35, the resonance part 36 and the discharge port 37;

the fine filter plates 34 are arranged below the side surfaces of the crushing bin 2, the screening bin 3 is separated from the dust removal bin 5, a plurality of groups of vibration assisting components 36 are arranged below the coarse filter plate 22, and the vibration assisting components 36 are connected above the fine filter plates 34 and are in contact with the coarse filter plate 22 and the fine filter plates 34; the positioning umbrella 35 is coaxially fixed on the rotating shaft 15 and is positioned below the coarse filter plate 22;

the transmission gear 33 is fixed on the rotating shaft 15 and is positioned below the fan 4, and the transmission gear 33 is eccentrically arranged when being arranged; and a plurality of groups of the isolation plates 31 are uniformly distributed circumferentially below the transmission gear 33, and a plurality of groups of the vibration components 32 are uniformly distributed on the isolation plates 31 at intervals, wherein the vibration components 32 are positioned close to the fine filter plates 34.

In this embodiment, as shown in fig. 1 or 3, the fan 4 includes:

the rotary fan 41, the winnowing brush 42, the mounting seat 43, the discharge hole 431, the air storage bin 44, the air outlet 45, the fan frame 46, the choke compartment 47, the temporary plate 48 and the winnowing hole 481;

the wind selection brush 42 is coaxially fixed on the rotating shaft 15 and is positioned below the positioning umbrella 35, the temporary plate 48 is arranged below the wind selection brush 42, the rotating shaft 15 passes through the temporary plate 48, and a plurality of groups of wind selection holes 481 are formed in the temporary plate 48; the fan frame 46 is connected below the temporary plate 48;

the plurality of groups of rotating fans 41 are fixed on the rotating shaft 15 and are positioned above the transmission gear 33, the fan frames 46 are internally provided with the air storage bins 44 between every two groups of rotating fans 41, the upper parts of the rotating fans 41 are connected with the air blocking compartments 47, and a plurality of groups of air outlets 45 are distributed on the air blocking compartments 47;

the position of the winnowing hole 481 corresponds to the air outlet 45;

as a preferred embodiment, the plurality of groups of the rotating fans 41 rotate, the wind blocking compartment 47 is a sealing member through the wind storage bin 44, only a few holes are connected with the wind outlet 45, the pressure in the wind storage bin 44 is increased, and the materials to be screened are ejected through the wind outlet 45, at this time, the materials to be screened pass through the rough filter plate 22, pass through the positioning umbrella 35 and fall on the temporary setting plate 48, and are dropped from the wind separation holes 481 through the wind separation brush 42, and the wind separation holes 481 correspond to the positions of the wind outlet 45, so that the materials to be screened are screened by the wind ejected from the wind outlet 45, small particles with lighter mass and easy to form dust are blown away, and enter the dust removal bin 5 through the fine filter plate 34, and meanwhile, the particles which cannot pass through the fine filter plate 34 are ejected from the outlet 37 as primary screening materials; meanwhile, the screened objects with larger mass fall onto the mounting seat 43 after being screened by the air outlet 45 and are discharged through the discharge hole 431 as secondary screened objects, and meanwhile, the transmission gear 33 eccentrically mounted can sweep residual screened objects on the mounting seat 43 into the discharge hole 431.

In this embodiment, as shown in fig. 1 or 2, the dust removing bin 5 includes:

the water storage layer 51 is arranged in the frame 1 and is positioned below the water injection head 14;

the dust pressing spray head 52 is arranged below the water storage layer 51 and above the crushing rotor 21;

the drain hole 53 is disposed on the base 11, and is located at a position of the outermost ring of the base 11 corresponding to the dust removal bin 5.

In this embodiment, as shown in fig. 3 and 5, the vibration member 32 includes: a transmission rod 321, a filling block 3211, a rotary convex head 3212, an assembly cylinder 322, a rotary guide rail 3221, a pause opening 32211, a vibration spring 323, a contact round table 324 and a contact ball 325;

the transmission rod 321 is externally sleeved with the assembly cylinder 322, the filling block 3211 and the vibrating spring 323 sleeved on the transmission rod 321 are arranged in the part intersecting with the assembly cylinder 322, one end of the vibrating spring 323 is propped against the inner wall of the assembly cylinder 322, the other end of the vibrating spring 323 is propped against the filling block 3211, one end of the transmission rod 321, which is close to the fine filter plate 34, is connected with the contact round table 324, and the other end of the transmission rod 321 is connected with the contact ball 325;

the inner wall of the assembly cylinder 322 is provided with v-shaped rotating guide rails 3221, pause openings 32211 are formed at the intersections of the rotating guide rails 3221, the filling blocks 3211 are provided with rotating raised heads 3212, and the rotating raised heads 3212 move in the rotating guide rails 3221.

As a preferred embodiment, since the transmission gear 33 is eccentrically installed on the rotation shaft 15, the distance between the transmission gear 33 and the single transmission rod 321 is continuously changed when the transmission gear rotates one turn, and the transmission rod 321 compresses and releases the vibration spring 323 by touching and pushing the contact ball 325 in a certain period, so that the contact round table 324 continuously strikes the fine filter plate 34, and the fine filter plate 34 vibrates to prevent blockage; meanwhile, in order to avoid the damage to the fine filter plate 34 or the gradual attenuation of the vibration effect caused by the long-time knocking of the same position, the rotating guide rail 3221 on the inner wall of the assembly cylinder 322 can make the transmission rod 321 rotate along with the rotation through the movement of the rotating raised head 3212 on the rotating guide rail 3221 in the extension and contraction of the transmission rod 321, and meanwhile, the contact round table 324 is enabled to knock the fine filter plate 34 at different angles, so that the purposes of enhancing the vibration effect and prolonging the service life are achieved.

In this embodiment, as shown in fig. 4, the resonance component 36 includes:

guide rod 361, driving sleeve 362, contact 363, working sleeve 3621, blocking boss 36211, fixing sleeve 3632, dividing rod 3633, resonance head 3634, driving spring 364, mounting rod 365;

the two ends of the guide rod 361 are connected with the contact heads 363, the driving shaft sleeve 362 is sleeved outside the guide rod 361, the operation sleeve 3621 is arranged in the contact heads 363, the operation sleeve 3621 wraps the driving shaft sleeve 362, and meanwhile, the operation sleeve 3621 is provided with the blocking protrusions 36211 to define the track range of the driving shaft sleeve 362;

the contact 363 is internally provided with the dividing rod 3633, two ends of the guide rod 361 are connected with the dividing rod 3633, and a transmission spring 364 is arranged on the other side of the dividing rod 3633 close to the fine filter plate 34;

the outer side of the working sleeve 3621 is wrapped with the fixing sleeve 3632, the fixing sleeve 3632 close to the coarse filter plate 22 is connected with the mounting rod 365, and the other end of the mounting rod 365 is connected above the fine filter plate 34.

As a preferred embodiment, when the fine filter plate 34 continuously vibrates under the action of the vibration component 32, the transmission contact head 3621 near one end of the fine filter plate 34 can feel vibration, so as to drive the transmission shaft sleeve 362, and the transmission spring 364 continuously compresses and releases, amplifies the received vibration, and meanwhile, the position of the transmission shaft sleeve 362 continuously changes along with the vibration, so that the transmission shaft sleeve 362 near one end of the coarse filter plate 22 is driven by the action shaft sleeve 366, and the vibration received from the fine filter plate 34 is transmitted to the coarse filter plate 22 to vibrate up and down.

As a preferred embodiment, in the implementation, the rotary head 12 drives the rotary shaft 15 to rotate, and simultaneously water is injected into the water injection head 14, and the water injection head 14 injects water into the water storage layer 51 and then is sprayed out by the dust pressing nozzle 52;

simultaneously, crushed ore enters the crushing bin 2 through the input port 13, and the crushing rotary head 21 continuously crushes ore which does not reach the granularity standard in the crushed ore, and then enters the screening bin 3 from the coarse filter plate 22; in the screening bin 3, ore falls onto the temporary setting plate 48 through the positioning umbrella 35, is discharged from a specific position through the winnowing brush 42, falls into the air outlet direction of each air outlet 45 for screening, and then different grades of screened materials are discharged through different outlet openings.

The foregoing description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical solution of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.

Claims

1. A screening equipment for silver-lead ore dressing is characterized in that: comprising the following steps: the device comprises a frame (1), a crushing bin (2), a screening bin (3), a fan (4) and a dust removal bin (5);

the frame (1) carries working parts; the crushing bin (2) is arranged inside the frame (1) and is positioned above the inside of the frame (1); the screening bin (3) is positioned right below the crushing bin (2); the fan (4) is arranged below the screening bin (3), and the crushing bin (2), the screening bin (3) and the fan (4) are positioned on the same axis; the dust removing bin (5) is arranged on the outermost layer inside the frame (1) and is used for spatially wrapping the crushing bin (2), the screening bin (3) and the fan (4);

the frame (1) comprises: a base (11), a rotating head (12), an input port (13), a water injection head (14) and a rotating shaft (15);

the base (11) is positioned at the lowest part of the frame, the rotating shaft (15) is connected to the upper part of the base, the rotating shaft (15) passes through the middle of the crushing bin (2), the screening bin (3) and the fan (4) and is connected with the rotating head (12) after passing through the crushing bin (2), the input ports (13) are symmetrically arranged at two sides of the rotating head (12), and the water injection heads (14) are arranged on a plane fixed by the input ports (13);

the crushing bin (2) comprises:

a crushing rotor (21) which is coaxially fixed to the rotary shaft (15) in plural sets and can perform a rotary operation;

a coarse filter plate (22) which is arranged below the crushing rotary head (21) and separates the crushing bin (2) from the screening bin (3);

wherein a gap exists between the crushing rotor (21) and the coarse filter plate (22);

the screening bin (3) comprises: a separation plate (31), a vibration part (32), a transmission gear (33), a fine filter plate (34), a positioning umbrella (35), a resonance part (36) and a discharge port (37);

the fine filter plates (34) are arranged below the side surfaces of the crushing bin (2), the screening bin (3) is separated from the dust removal bin (5), a plurality of groups of vibration assisting components (36) are arranged below the coarse filter plates (22), and the vibration assisting components (36) are connected above the fine filter plates (34) and are in contact with the coarse filter plates (22) and the fine filter plates (34); the positioning umbrella (35) is coaxially fixed on the rotating shaft (15) and is positioned below the coarse filter plate (22);

the transmission gear (33) is fixed on the rotating shaft (15) and positioned below the fan (4), and the transmission gear (33) is eccentrically arranged when being arranged; and a plurality of groups of isolation plates (31) are uniformly distributed circumferentially below the transmission gear (33), a plurality of groups of vibration components (32) are uniformly distributed on the isolation plates (31) at intervals, and the vibration components (32) are positioned close to the fine filter plates (34).

2. A screening apparatus for silver-lead ore dressing according to claim 1, wherein: the fan (4) comprises:

the fan comprises a rotary fan (41), a winnowing brush (42), a mounting seat (43), a discharge hole (431), an air storage bin (44), an air outlet (45), a fan frame (46), a choke compartment (47), a temporary plate (48) and a winnowing hole (481);

the winnowing brush (42) is coaxially fixed on the rotating shaft (15) and is positioned below the positioning umbrella (35), the temporary plate (48) is arranged below the winnowing brush (42), and the rotating shaft (15) passes through the temporary plate (48); the fan frame (46) is connected below the temporary plate (48);

a plurality of groups of winnowing holes (481) are formed in the end face of the temporary plate (48), and the positions of the winnowing holes (481) correspond to the positions of the air outlets (45);

the multi-group rotating fan (41) is fixed on the rotating shaft (15) and is located above the transmission gear (33), the fan frames (46) are internally provided with the wind storage bins (44) between every two of the multi-group rotating fan (41), the upper parts of the rotating fans (41) are connected with the wind blocking compartments (47), and the wind blocking compartments (47) are provided with a plurality of groups of wind outlets (45).

3. A screening apparatus for silver-lead ore dressing according to claim 1, wherein: the dust removal bin (5) comprises:

the water storage layer (51) is arranged in the rack (1) and is positioned below the water injection head (14);

the dust pressing spray head (52) is arranged below the water storage layer (51) and above the crushing rotary head (21);

the drain hole (53) is arranged on the base (11) and is positioned at the position of the outermost ring of the base (11) corresponding to the dust removal bin (5).

4. A screening apparatus for silver-lead ore dressing according to claim 1, wherein: the vibration member (32) includes: the device comprises a transmission rod (321), a filling block (3211), a rotary protruding head (3212), an assembly cylinder (322), a rotary guide rail (3221), a pause opening (32211), a vibration spring (323), a contact round table (324) and a contact ball (325);

the transmission rod (321) is externally sleeved with the assembly cylinder (322), the filling block (3211) and the vibrating spring (323) sleeved on the transmission rod (321) are arranged in the part intersecting with the assembly cylinder (322), one end of the vibrating spring (323) is propped against the inner wall of the assembly cylinder (322), the other end of the vibrating spring is propped against the filling block (3211), one end, close to the fine filter plate (34), of the transmission rod (321) is connected with the contact round table (324), and the other end of the transmission rod is connected with the contact ball (325);

moreover, the inner wall of the assembly cylinder (322) is provided with a v-shaped rotary guide rail (3221), the intersection of the rotary guide rails (3221) is provided with a pause opening (32211), the filling block (3211) is provided with a rotary protruding head (3212), and the rotary protruding head (3212) moves in the rotary guide rail (3221).

5. A screening apparatus for silver-lead ore dressing according to claim 1, wherein: the resonance member (36) further includes: a guide rod (361), a transmission shaft sleeve (362), a contact head (363), a working sleeve (3621), a blocking boss (36211), a fixed sleeve (3632), a dividing rod (3633), a resonance head (3634), a transmission spring (364) and a mounting rod (365);

the two ends of the guide rod (361) are connected with the contact heads (363), the guide rod (361) is externally sleeved with the transmission shaft sleeve (362), the operation sleeve (3621) is arranged in the contact heads (363), the operation sleeve (3621) wraps the transmission shaft sleeve (362), meanwhile, the operation sleeve (3621) is provided with the blocking protrusion (36211) to define the track range of the transmission shaft sleeve (362);

the contact head (363) is internally provided with the dividing rod (3633), two ends of the guide rod (361) are connected with the dividing rod (3633), the other side of the dividing rod (3633) close to the fine filter plate (34) is provided with a transmission spring (364), and the other side of the transmission spring (364) is provided with the resonance head (3634);

the outside of the operation sleeve (3621) is wrapped by the fixing sleeve (3632), the fixing sleeve (3632) close to the coarse filter plate (22) is connected with the mounting rod (365), and the other end of the mounting rod (365) is connected above the fine filter plate (34).