CN119216209B

CN119216209B - Basalt fiber raw material processing vibrating screen and method

Info

Publication number: CN119216209B
Application number: CN202411719287.3A
Authority: CN
Inventors: 段骜; 段士元; 李志保
Original assignee: Jilin Jinlun New Material Technology Co ltd
Current assignee: Jilin Jinlun New Material Technology Co ltd
Priority date: 2024-11-28
Filing date: 2024-11-28
Publication date: 2025-01-24
Anticipated expiration: 2044-11-28
Also published as: CN119216209A

Abstract

The invention relates to the technical field of basalt raw material screening, and in particular provides a basalt fiber raw material processing vibrating screen and a basalt fiber raw material processing vibrating screen method. The basalt fiber raw material processing vibrating screen is matched with the vibrating mechanism through the grading screening mechanism, so that the function of multistage integrated continuous screening of raw materials is realized, the convenience and the efficiency of multistage screening of the raw materials are greatly improved, when the four-sided conical screen is used for screening the raw materials, the four sides of the four-sided conical screen have the vibration blanking effect of diversion and dispersion, the dispersing screening effect of the raw materials, the screening sufficiency and the raw material screening quality are improved, meanwhile, a plurality of guide cylinders which are sequentially arranged from top to bottom are adopted for sequentially carrying out gathering and diversion discharge on the raw materials screened in the multistage screening, and then the raw materials are discharged through the staggered arrangement of a plurality of discharge pipelines, so that the convenience of classifying and collecting the raw materials is improved.

Description

Basalt fiber raw material processing vibrating screen and method

Technical Field

The invention relates to the technical field of basalt raw material screening, and particularly provides a basalt fiber raw material processing vibrating screen and a basalt fiber raw material processing vibrating screen method.

Background

The basalt fiber is a high-performance inorganic nonmetallic mineral fiber, the raw materials are mainly from natural basalt, the basalt ore raw materials are crushed firstly when the basalt fiber is prepared, large basalt ores are crushed into small blocks, then screening treatment is carried out, the crushed basalt ores are classified according to the particle size, and the granularity of the materials entering the next working procedure is ensured to meet the requirements.

At present, when the basalt fiber raw materials are screened in a large-scale and small-scale mode, a vibrating screen with a herringbone structure is often adopted, when the raw materials are screened by the vibrating screen, the raw materials are directly moved along the inclined plane of the vibrating screen to perform single-stage vibrating screening, the function of multi-stage classification according to the particle size of the raw materials is difficult to realize, when the raw materials are poured on the vibrating screen with the herringbone structure, the vibrating screen with the herringbone structure can only perform two-side inclined plane split-flow dispersing screening on the raw materials, and part of the raw materials cannot be fully contacted and screened by the vibrating screen, so that the sufficiency and screening quality of raw material screening are reduced.

Disclosure of Invention

In view of the above problems, the embodiments of the present application provide a basalt fiber raw material processing vibrating screen and a method thereof, so as to solve the technical problems in the related art.

In order to achieve the aim, the basalt fiber raw material processing vibrating screen comprises a supporting fixing frame, wherein a connecting platform is arranged at the top of the supporting fixing frame through a vibrating mechanism, a discharging through groove is formed in the middle of the connecting platform, and a grading screening mechanism is arranged at the top of the connecting platform.

The classifying screening mechanism comprises a four-side conical screen and a four-side conical cover which are arranged on a connecting platform, the four-side conical screen is sleeved on the four-side conical screen, the four-side conical screen is composed of conical screening frames which are sequentially arranged and connected from top to bottom, screening holes are formed in the other conical screening frames except for the lowest conical screening frame, the pore diameters of the screening holes in the conical screening frames are sequentially increased from top to bottom, rectangular feed inlets are formed in four side walls of the lowest conical screening frame, inclined plates are arranged between the rectangular feed inlets and the inner walls of the four-side conical cover, classification discharge groups are arranged between the inner walls of the four-side conical screen and discharge through grooves, partition strips are respectively and jointly arranged at four corners of the inner walls of the four-side conical cover, and a step-by-step discharge driving group for driving the automatic opening and closing groups of the grade separation on the four sides is arranged on the four-side conical cover.

The automatic group that opens and shuts of level separation is including seting up a plurality of arc grooves that arrange in proper order at four sides conical hood inside wall and from the top down, the both ends of arc groove all are the toper, the arc groove with set up the toper screening frame one-to-one in screening hole, rotate in the arc groove and be connected with the rotation axis, install the baffle of evenly arranging along its circumference on the rotation axis, the baffle is the trapezium structure that reduces gradually to the direction size of keeping away from the rotation axis, and two slope side edges rotation axis axial distributions of baffle are parallel with corresponding division board strip respectively, row material drive group drive is followed down a plurality of rotation axes of upwards arranging and is rotated in proper order.

In one possible embodiment, the three end faces of the baffle, except the end face connected with the rotating shaft, are all rotatably connected with antifriction rollers.

In a possible implementation manner, the step-by-step discharging driving group comprises inclined grooves formed in four corners of the four-sided conical cover, bevel gears are fixedly mounted at two ends of each rotating shaft after penetrating through the corresponding inclined grooves, the two adjacent bevel gears are in meshed transmission, and one end of each rotating shaft which is located on one side wall of the four-sided conical cover and is distributed from top to bottom penetrates through the four-sided conical cover and then is connected with the intermittent staggered rotation driving source.

In one possible implementation mode, the sorting discharging group comprises a guide cylinder installed on the inner wall of the conical screening frame near the lower end, the guide cylinders are sequentially increased from top to bottom, discharging pipelines communicated with the guide cylinders are installed at the lower ends of the guide cylinders, the discharging pipelines are distributed in a staggered mode along the circumferential direction of the discharging through grooves, and a bracket is installed between each discharging pipeline and each discharging through groove.

In one possible embodiment, a deflector is installed between the inner wall of the guide cylinder and the side wall of the discharge pipe penetrating the side wall.

In one possible implementation mode, the arc-shaped groove is positioned on the inner wall below the rotating shaft connected with the arc-shaped groove, a swinging barrier strip is rotatably connected in the installation groove through a torsion spring rod, and a matching barrier strip matched with the swinging barrier strip is arranged between the side wall of each baffle and the rotating shaft.

In one possible implementation mode, cylindrical diagonal rods which are uniformly distributed are arranged between the outer side wall of the guide cylinder and the inner wall of the corresponding conical screening frame.

In one possible implementation manner, the upper end of the guide cylinder is a funnel structure with an upward gradually increasing caliber and connected with the corresponding conical screening frame.

In one possible implementation, the top of the four-sided cone cover is provided with a guide hopper with an upward increasing caliber.

S1, pouring the raw materials from above the four-side conical screen between the four-side conical screen and the four-side conical cover, and shunting the raw materials at the top of the four-side conical screen to enable the raw materials to enter between four opposite surfaces of the four-side conical screen and the four-side conical cover.

S2, multistage screening, namely when raw materials are poured from above the four-side conical screens, the uppermost screening holes of the four-side conical screens conduct primary screening on the raw materials, the baffle plate in the primary screening area blocks the raw materials, the raw materials stay between the conical screening frame and the four-side conical covers for a period of time, so that the raw materials can be fully screened, after the primary screening is finished, the rotary shaft at the primary screening area drives the baffle plate to rotate, so that the primary screening area is opened, the raw materials enter the secondary screening area, at the moment, the rotary shaft on the primary screening area drives the next baffle plate to rotate to close the primary screening area, next batch of new raw materials are poured, the secondary screening area conducts secondary screening on the raw materials, after the secondary screening is finished, the rotary shaft at the secondary screening area drives the baffle plate to rotate to open the secondary screening area to discharge the raw materials into the tertiary screening area, and after the tertiary screening is finished, the rotary shaft at the tertiary screening area drives the baffle plate to rotate to open the tertiary screening area to enable the raw materials with the largest residual particles to be discharged from the rectangular blanking opening.

S3, sorting and discharging, namely sequentially gathering, guiding and discharging raw materials of primary screening, secondary screening and tertiary screening by a plurality of guide barrels which are sequentially arranged from top to bottom, and then collecting the raw materials at the lower end of each discharge pipeline by the existing collecting equipment.

The basalt fiber raw material processing vibrating screen has the advantages that 1. The basalt fiber raw material processing vibrating screen is matched with the vibrating mechanism through the grading screening mechanism, so that the function of multi-stage integrated continuous screening of raw materials is achieved, the convenience and the efficiency of multi-stage screening of the raw materials are greatly improved, and when the four-sided conical screen is used for screening the raw materials, the four sides of the four-sided conical screen have the vibration blanking effect of diversion and dispersion, and the dispersing screening effect, the screening sufficiency and the raw material screening quality of the raw materials are improved.

2. The four sides of the four-side conical screen the raw materials simultaneously, not only increases the efficiency of raw material screening and the screening quantity of each time, can also cooperate with the conical cover on four sides to ensure that the raw materials stay for a certain time in each stage of screening area, so that the raw materials can be sufficiently screened, and the sufficiency of raw material screening is further improved.

3. According to the invention, the plurality of guide barrels which are sequentially arranged from top to bottom sequentially gather and guide and discharge the raw materials screened during multi-stage screening, and then the raw materials are discharged through the plurality of staggered discharge pipelines, so that the convenience of classifying and collecting the raw materials is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic perspective view of a vibrating screen for processing raw materials according to the present invention.

FIG. 2 is a schematic view of a partial perspective view of the automatic opening and closing combination of a four-sided cone screen and a grade separation according to the present invention.

Fig. 3 is a first perspective view of the four-sided cone-shaped cover and the baffle plate strip of the present invention.

Fig. 4 is a second perspective view of the four-sided cone-shaped cover and the baffle plate strip of the present invention.

Fig. 5 is a front cross-sectional view of fig. 1 of the present invention.

Fig. 6 is an enlarged view of fig. 5 at a in accordance with the present invention.

Fig. 7 is a top cross-sectional view of fig. 1 of the present invention.

Reference numeral 1, a supporting and fixing frame; 2, a vibration mechanism, 3, a connecting platform, 4, a discharging through groove, 5, a grading screening mechanism, 50, a four-sided conical screen, 51, a four-sided conical cover, 510, a guide hopper, 52, a rectangular discharging opening, 53, an inclined plate, 54, a sorting discharging group, 540, a guide cylinder, 541, a discharging pipeline, 542, a bracket, 543, a guide plate, 544, a cylindrical inclined rod, 55, a partition plate strip, 56, a grade separation automatic opening and closing group, 560, an arc-shaped groove, 561, a rotating shaft, 562, a baffle plate, 57, a step-by-step discharging driving group, 570, a chute, 571, a bevel gear, 580, a mounting groove, 581, a swinging baffle strip, 582 and a matching baffle strip.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In order that those skilled in the art will better understand the present invention, the following description will be given in detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 and 5, a basalt fiber raw material processing vibrating screen comprises a supporting and fixing frame 1, wherein a connecting platform 3 is arranged at the top of the supporting and fixing frame 1 through a vibrating mechanism 2, a discharging through groove 4 is formed in the middle of the connecting platform 3, and a grading screening mechanism 5 is arranged at the top of the connecting platform 3.

The support fixing frame 1 is provided with a mounting groove, and the vibrating mechanism 2 can be a vibrating motor which is arranged in the mounting groove and used for driving the connecting platform 3 and the classifying screening mechanism 5 to perform vibrating screening.

Referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 7, the classifying screening mechanism 5 includes a four-sided tapered screen 50 and a four-sided tapered cover 51 mounted on the connection platform 3, the four-sided tapered screen 51 is sleeved on the four-sided tapered screen 50, the four-sided tapered screen 50 is composed of tapered screening frames sequentially arranged and connected from top to bottom, screening holes (not shown in the drawings) are formed in the rest tapered screening frames except for the lowest tapered screening frame, the apertures of the screening holes in the tapered screening frames are sequentially increased from top to bottom, rectangular feed openings 52 are formed in four side walls of the tapered screening frame at the lowest end, inclined plates 53 are mounted between the rectangular feed openings 52 and the inner walls of the four-sided tapered cover 51, classifying discharge groups 54 are mounted between the inner walls of the four-sided tapered screen 50 and the discharge through grooves 4, four corners of the inner walls of the four-sided tapered cover 51 are in one-to-one correspondence with four corner sides of the four-sided tapered screen 50, partition strips 55 are jointly mounted, stability of the connection of the tapered screen 50 is improved, the automatic raw materials can be divided, the four sides of the tapered screen 50 can be uniformly distributed, four sides are uniformly distributed, and four groups of the tapered cover groups are provided with four driving classification groups and are provided with four classification groups and are arranged, and are 56, and each is provided with four classification groups, and has a classification type, and is arranged, and has 56, and has a classification device.

Pouring the raw materials from the top of four sides conical screen 50 between four sides conical screen 50 and four sides conical cover 51, the top of four sides conical screen 50 shunts the raw materials for the raw materials can obtain abundant screening, and each face of four sides conical screen 50 is the inclined plane, thereby the speed of screening has been improved with vibrating mechanism 2 cooperation, the toper screening frame that arranges in proper order from the top down separates automatic group 56 that opens and shuts with the level, and divide into first order screening district from the top down according to the size of screening hole, second order screening district and tertiary screening district with the toper screening frame, the raw materials granule that first order screening district, second order screening district and tertiary screening district sieved increases in proper order, the biggest raw materials granule is directly discharged from rectangle feed opening 52.

Referring to fig. 5 and 6, the level separation automatic opening and closing set 56 includes a plurality of arc grooves 560 formed on the inner side wall of the four-sided cone-shaped cover 51 and sequentially arranged from top to bottom, two ends of each arc groove 560 are tapered, each arc groove 560 corresponds to a cone-shaped screening frame formed with a screening hole, a rotating shaft 561 is rotatably connected to each arc groove 560, a baffle 562 uniformly arranged along the circumferential direction of the rotating shaft 561 is mounted on the rotating shaft 561, the baffle 562 is in a trapezoid structure with gradually reduced size in a direction away from the rotating shaft 561, and two inclined side edges of the baffle 562 are axially distributed along the rotating shaft 561 and are respectively parallel to the corresponding partition strips 55, and the level-by-level discharging driving set 57 drives the plurality of rotating shafts 561 which are sequentially arranged from bottom to top.

When the raw materials are poured from above the four-side conical screen 50, the four-side conical screen 50 divides the raw materials and the screening holes at the uppermost part of the four-side conical screen 50 screen the raw materials for one stage, a baffle 562 in the one-stage screening area blocks the raw materials, the raw materials stay between a conical screen frame and the four-side conical cover 51 for a period of time so that the raw materials can be sufficiently screened, after the one-stage screening is finished, a rotating shaft 561 at the one-stage screening area drives the baffle 562 to rotate so as to open the one-stage screening area, the rest raw materials enter a second-stage screening area, at the moment, the rotating shaft 561 on the one-stage screening area drives a next baffle 562 to rotate so as to close the one-stage screening area, the next new raw materials are poured, the second-stage screening area performs the second-stage screening on the raw materials, after the second-stage screening is finished, the rotating shaft 561 at the second-stage screening area drives the baffle 562 to rotate so as to open the second-stage screening area so as to enable the rest raw materials to enter a third-stage screening area, and after the third-stage screening is finished, the rotating shaft 561 at the third-stage screening area drives the baffle 562 to rotate so as to open the third-stage screening area so as to enable the rest raw materials with the largest particles to be discharged from the rectangular blanking opening 52.

The step-by-step discharging driving group 57 drives the plurality of rotating shafts 561 to sequentially and alternately rotate, so that the raw materials at the previous stage fall down again after the raw materials in the next stage of screening area are discharged, and new raw materials are fed after the intermittent rotation of the rotating shaft 561 at the uppermost stage stops.

In summary, through the cooperation of classifying screen mechanism 5 and vibrating mechanism 2, thereby realize the function of four-stage screening integration to the raw materials, improved the convenience and the efficiency of the multistage screening of raw materials greatly, and four faces of four-sided cone screen 50 can screen the raw materials simultaneously, not only increased the efficiency of raw materials screening and the screening volume at every turn, can also cooperate with four-sided cone cover 51 so that the raw materials can obtain abundant screening at every one-tenth stage.

Referring to fig. 6, except for the end surface connected with the rotation shaft 561, the three end surfaces of the baffle 562 are rotatably connected with antifriction rollers (not shown in antifriction roller diagrams mounted on two end surfaces of the baffle 562 distributed along the axial direction of the rotation shaft 561), and the antifriction rollers are used for reducing friction between the baffle 562 and the four-sided cone screen 50 and the baffle strips 55 when rotating.

Referring to fig. 1 and 7, the progressive discharging driving set 57 includes inclined slots 570 formed at four corners of the tetrahedral conical cover 51, bevel gears 571 are fixedly mounted at two ends of the rotary shaft 561 after penetrating through the corresponding inclined slots 570, and two adjacent bevel gears 571 are in meshed transmission with each other, and one end of a plurality of rotary shafts 561 disposed on one side wall of the tetrahedral conical cover 51 and arranged from top to bottom penetrates through the tetrahedral conical cover 51 and is connected with an intermittent staggered rotary driving source (not shown in the drawings).

The intermittent staggered rotary driving source comprises driving shafts which are sequentially arranged from top to bottom and are arranged on the side walls of the four-sided conical cover 51, the driving shafts are in transmission connection through sprocket chains, one driving shaft is connected with a motor, the driving shafts 561 are in transmission connection with corresponding driving shafts through cooperation of a geneva mechanism after penetrating through the four-sided conical cover 51, and the driving shafts continuously rotate to drive the rotating shafts 561 to intermittently rotate through the geneva mechanism, so that a plurality of rotating shafts 561 perform staggered intermittent rotation, and a plurality of rotating shafts 561 at the same height are in meshed transmission through bevel gears 571.

Referring to fig. 5, the sorting and discharging group 54 includes a guide cylinder 540 installed on the inner wall of the conical screening frame near the lower end, the guide cylinders 540 sequentially increase from top to bottom, the lower ends of the guide cylinders 540 are installed with discharging pipes 541 communicated with the guide cylinders, the discharging pipes 541 are staggered along the circumferential direction of the discharging through slot 4, and a bracket 542 is installed between the discharging pipes 541 and the discharging through slot 4.

The plurality of guide barrels 540 sequentially arranged from top to bottom sequentially gather, guide and discharge the raw materials subjected to primary screening, secondary screening and tertiary screening, and the plurality of discharge pipelines are staggered so as to conveniently classify and collect the raw materials.

Referring to fig. 5, a deflector 543 is installed between the inner wall of the guide tube 540 and the side wall of the discharge tube 541 penetrating through the side wall thereof, the deflector 543 is used for guiding the raw materials, preventing the discharge tube 541 from obstructing the moving and falling of the raw materials, and simultaneously, the plurality of guide tubes 540 and the discharge tube 541 are mutually connected and supported, so as to improve the stability.

Referring to fig. 6, the inner wall of the arc-shaped groove 560 below the rotating shaft 561 connected therein is provided with a mounting groove 580, a swinging baffle bar 581 is rotatably connected in the mounting groove 580 through a torsion spring rod, a matching baffle bar 582 matched with the swinging baffle bar 581 is mounted between the side wall of each baffle plate 562 and the rotating shaft 561, and the matching baffle bar 582 is matched with the swinging baffle bar 581 to block falling raw materials and raw materials in the screening process, so that the raw materials are prevented from entering the arc-shaped groove 560 to block the rotating shaft 561, and the rotation of the rotating shaft 561 is affected.

Referring to fig. 5, a cylindrical diagonal rod 544 is installed between the outer sidewall of the guide cylinder 540 and the inner wall of the corresponding conical screening frame, so as to improve the stability of the guide cylinder 540, and the cylindrical diagonal rod 544 does not affect the falling of the screened raw materials.

Referring to fig. 5, the upper end of the guide cylinder 540 has a funnel structure with an increased diameter and is connected to a corresponding conical screening frame, so that the screened raw materials enter the guide cylinder 540.

Referring to fig. 3 and 6, a guide hopper 510 with an upward increasing diameter is installed at the top of the four-sided cone-shaped cover 51 so that raw materials can enter between the four-sided cone-shaped screen 50 and the four-sided cone-shaped cover 51.

The invention also improves a basalt fiber raw material processing vibration screening method, which comprises the following steps of S1, feeding and distributing, namely pouring raw materials between a four-sided conical screen 50 and a four-sided conical cover 51 from the upper part of the four-sided conical screen 50, distributing the raw materials at the top of the four-sided conical screen 50, and enabling the raw materials to enter between four opposite surfaces of the four-sided conical screen 50 and the four-sided conical cover 51.

And S2, multi-stage screening, namely when raw materials are poured from above the four-side conical screen 50, the screening holes at the uppermost part of the four-side conical screen 50 are used for carrying out primary screening on the raw materials, a baffle 562 in the primary screening zone is used for blocking the raw materials, the raw materials stay between a conical screening frame and the four-side conical cover 51 for a period of time, so that the raw materials can be fully screened, after the primary screening is finished, a rotating shaft 561 at the primary screening zone drives the baffle 562 to rotate, so that the primary screening zone is opened, the residual raw materials enter the secondary screening zone, at the moment, the rotating shaft 561 on the primary screening zone drives the next baffle 562 to rotate to close the primary screening zone, the next new raw materials are poured into the secondary screening zone, the rotating shaft 561 at the secondary screening zone drives the baffle 562 to rotate to open the secondary screening zone to discharge the raw materials into the tertiary screening zone, and after the tertiary screening is finished, the rotating shaft 561 at the tertiary screening zone drives the baffle 562 to rotate to open the tertiary screening zone to discharge the residual raw materials with the largest particles from the rectangular blanking port 52.

S3, sorting and discharging, namely sequentially gathering, guiding and discharging raw materials of primary screening, secondary screening and tertiary screening by a plurality of guide barrels 540 which are sequentially arranged from top to bottom, and then collecting the raw materials at the lower end of each discharge pipeline 541 by the existing collecting equipment.

In the description of the present invention, it should be understood that the terms "long", "width", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "connected," "mounted," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediary, or in communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

The embodiments of the present invention are all preferred embodiments of the present invention, and are not limited in scope by the present invention, so that all equivalent changes according to the structure, shape and principle of the present invention are covered in the scope of the present invention.

Claims

1. The basalt fiber raw material processing vibrating screen is characterized by comprising a supporting and fixing frame (1), wherein a connecting platform (3) is arranged at the top of the supporting and fixing frame (1) through a vibrating mechanism (2), a discharging through groove (4) is formed in the middle of the connecting platform (3), and a grading and screening mechanism (5) is arranged at the top of the connecting platform (3);

The classifying screening mechanism (5) comprises a four-side conical screen (50) and a four-side conical cover (51) which are arranged on a connecting platform (3), the four-side conical screen (51) is sleeved on the four-side conical screen (50), the four-side conical screen (50) is composed of conical screening frames which are sequentially arranged and connected from top to bottom, screening holes are formed in the other conical screening frames except for the conical screening frame at the bottommost end, the pore diameters of the screening holes in the conical screening frames are sequentially increased from top to bottom, rectangular blanking openings (52) are formed in four side walls of the conical screening frame at the bottommost end, inclined plates (53) are arranged between the rectangular blanking openings (52) and the inner wall of the four-side conical screen (51), classifying and discharging groups (54) are arranged between the inner wall of the four-side conical screen (50) and the discharging through groove (4), partition strips (55) are respectively and jointly installed at four corners of the inner wall of the four conical screen (51), automatic partition groups (56) are respectively provided with four partition groups (56) on the inner wall of the conical screen (51), and the four partition groups (56) are respectively provided with driving groups (56) which are driven by stages;

The automatic group (56) that opens and shuts of level separation is including seting up a plurality of arc grooves (560) that just arrange in proper order from the top down at four sides toper cover (51) inside wall, the both ends of arc groove (560) all are the toper, arc groove (560) and the toper screening frame one-to-one of seting up the screening hole, arc groove (560) internal rotation is connected with rotation axis (561), install baffle (562) of evenly arranging along its circumference on rotation axis (561), baffle (562) are the trapezium structure that reduces gradually to the direction size of keeping away from rotation axis (561), and two slope sides of baffle (562) are along rotation axis (561) axial distribution and respectively parallel with corresponding division board (55), row material drive group (57) drive a plurality of rotation axes (561) step by step and carry out intermittent type rotation in proper order.

2. The basalt fiber raw material processing vibrating screen as claimed in claim 1, wherein the step-by-step discharging driving group (57) comprises inclined grooves (570) formed in four corners of the four-sided conical cover (51), bevel gears (571) are fixedly arranged at two ends of each rotating shaft (561) after penetrating through the corresponding inclined groove (570), the adjacent two bevel gears (571) are in meshed transmission, and one end of each rotating shaft (561) which is located on one side wall of the four-sided conical cover (51) and is distributed downwards from top to bottom penetrates through the four-sided conical cover (51) and is connected with an intermittent staggered rotating driving source.

3. The basalt fiber raw material processing vibrating screen according to claim 1, wherein the classification discharging group (54) comprises a guide cylinder (540) which is arranged on the inner wall of the conical screening frame and close to the lower end, the guide cylinders (540) are sequentially increased from top to bottom, discharging pipelines (541) which are communicated with the guide cylinders are arranged at the lower end of the guide cylinders (540), the plurality of discharging pipelines (541) are distributed in a staggered mode along the circumferential direction of the discharging through groove (4), and a bracket (542) is arranged between the discharging pipelines (541) and the discharging through groove (4).

4. The basalt fiber raw material processing vibrating screen as claimed in claim 1, wherein the arc-shaped groove (560) is provided with a mounting groove (580) on the inner wall below a rotating shaft (561) connected with the arc-shaped groove, the mounting groove (580) is rotationally connected with a swinging baffle bar (581) through a torsion spring rod, and a matching baffle bar (582) matched with the swinging baffle bar (581) is arranged between the side wall of each baffle plate (562) and the rotating shaft (561).

5. The basalt fiber raw material processing vibrating screen as claimed in claim 3, wherein a deflector (543) is installed between the inner wall of the guide cylinder (540) and the side wall of the discharge pipe (541) penetrating through the side wall thereof.

6. The basalt fiber raw material processing vibrating screen as claimed in claim 1, wherein a guide hopper (510) with an upward gradually increasing caliber is arranged at the top of the four-sided conical cover (51).

7. The basalt fiber raw material processing vibrating screen as claimed in claim 1, wherein the baffle plate (562) is rotatably connected with antifriction rollers except for the end surface connected with the rotating shaft (561).

8. The basalt fiber raw material processing vibrating screen as claimed in claim 3, wherein cylindrical diagonal rods (544) which are uniformly distributed are arranged between the outer side wall of the guide cylinder (540) and the inner wall of the corresponding conical screening frame.

9. The basalt fiber raw material processing vibrating screen as claimed in claim 3, wherein the upper end of the guide cylinder (540) is of a funnel structure with an upward gradually increasing caliber and connected with a corresponding conical screening frame.

10. A basalt fiber raw material processing vibration screening method is completed by adopting the basalt fiber raw material processing vibration screen as defined in claim 3, and is characterized by comprising the following steps:

s1, feeding and splitting, namely pouring raw materials between a four-side conical screen (50) and a four-side conical cover (51) from the upper part of the four-side conical screen (50), and splitting the raw materials at the top of the four-side conical screen (50) so that the raw materials enter between four opposite surfaces of the four-side conical screen (50) and the four-side conical cover (51);

S2, multi-stage screening, namely when raw materials are poured from above a four-side conical screen (50), screening holes at the uppermost part of the four-side conical screen (50) conduct primary screening on the raw materials, after the primary screening is completed, a rotating shaft (561) at the primary screening part drives a baffle plate (562) to rotate, so that a primary screening area is opened, the raw materials enter a secondary screening area, the secondary screening area conducts secondary screening on the raw materials, after the secondary screening is completed, the rotating shaft (561) at the secondary screening area drives the baffle plate (562) to rotate, the secondary screening area is opened, the discharged raw materials enter a tertiary screening area, and after the tertiary screening is completed, the rotating shaft (561) at the tertiary screening area drives the baffle plate (562) to rotate, so that the tertiary screening area is opened, and the raw materials with the largest residual particles are discharged from a rectangular blanking opening (52);

s3, sorting and discharging, namely sequentially gathering, guiding and discharging raw materials of primary screening, secondary screening and tertiary screening by a plurality of guide barrels (540) which are sequentially arranged from top to bottom, and then collecting at the lower end of each discharging pipeline (541).