CN215902218U

CN215902218U - Vibration main separation bed surface with right-angle back plate and separation system thereof

Info

Publication number: CN215902218U
Application number: CN202120647258.6U
Authority: CN
Inventors: 李姗; 王新华; 王旭哲; 李志明; 郭建英; 朱卫坡; 张福国; 杨勇; 李磊; 张薇
Original assignee: Tangshan Shenzhou Machinery Group Co ltd
Current assignee: Tangshan Shenzhou Machinery Group Co ltd
Priority date: 2021-03-31
Filing date: 2021-03-31
Publication date: 2022-02-25
Anticipated expiration: 2031-03-31

Abstract

The utility model provides a vibration main selection bed surface with a right-angle back plate and a selection system thereof. Wherein, the bed panel is arranged or paved on the bed body of the main bed. The main selection bed is preferably an intelligent vibration main selection bed. Furthermore, a longitudinal angle monitor is arranged on the longitudinal side surface of the intelligent vibration main selection bed; and a transverse angle monitor is arranged on the transverse vibration edge of the main separation bed body. The main vibrating sorting bed surface with the right-angle back plate changes the angle of the back plate into 90 degrees, so that the dry sorting machine converts the original turning acting force into a thrust force for forward movement of materials in the sorting process, the moving speed of the materials on the bed surface is accelerated, and the sorting effect of coal is improved.

Description

Vibration main separation bed surface with right-angle back plate and separation system thereof

Technical Field

The utility model belongs to the technical field of coal separation, and particularly relates to a vibration main separation bed surface with a right-angle back plate and a separation system thereof, which are suitable for a super energy-saving coal dry separation system with super-high processing capacity.

Background

Coal separation mainly comprises two directions of water washing and dry separation, the water washing basically adopts the processes of jigging, dense medium, flotation and the like, and the method has the advantages of mature process, high separation precision and high processing capacity. The disadvantages of large construction investment, long period, high production cost, large water resource consumption and waste, and the water consumption of washing 1 ton of raw coal is about 0.1m³In addition, low quality by-products such as coal slurry are also produced. The dry separation is a coal separation method which exists and develops slowly in the last two decades, has the advantages of no water, simple process, less investment and low production cost, and the main representative process is a wind power dry coal separation process. From the coal distribution region, the west accounts for 80.4% of the country, the middle accounts for 15.2% of the country, and the east accounts for 4.4% of the country. The western part is the main distribution area of the coal in China and is just the dry and little water area, so compared with water washing, dry separation has wider requirements and prospects, and large-area popularization is achieved in China and all over the world in a very short period. The water content, ash content and sulfur content of coal are important factors influencing the quality of coal. To improve the quality of coal, the coal must be dewatered and sorted. Coal upgradingThe development of technology, coal drying and dry separation processes, has been widely used therein with significant success.

In the existing wind power dry separation process, a mechanical vibration dry separation bed is generally used for separation, the bed body structure is shown in fig. 6 and 7, a bed panel 32 and a back panel 41 of the mechanical vibration dry separation bed shown in fig. 6 form an acute angle of 60-70 degrees, and in the separation process, a reverse thrust action of the back panel is utilized to apply a turning action force on coal materials on the mechanical vibration dry separation bed, so that the coal materials impacting the back panel are turned back to the mechanical vibration dry separation bed to be mixed with other coal materials for further dry separation; as shown in fig. 7, the equal-height bars bn matched with the acute angle back plate 41 are laid on the bed panel 32 to form the basic structure of the vibration dry separation. However, the existing dry separation mechanism using the acute angle back plate has the defects of poor separation precision, small processing capacity, high requirement on coal types and the like. The reason for this is that the turning action retards the forward advancing speed of coal material separation, and the acute angle of the back plate further compresses the material movement space on the mechanical vibration dry separation bed surface.

Therefore, the wind-force dry coal dressing process needs to be further improved and improved, so that the process is more suitable for being used for sorting in various occasions or mining areas.

SUMMERY OF THE UTILITY MODEL

Based on the problems in the prior art, the utility model provides a vibration main separation bed surface with a right-angle back plate and a separation system thereof, which not only solve the technical problems in the prior art, but also improve the treatment capacity of coal separation and reduce the energy consumed in the separation process.

According to a first aspect of the present invention, there is provided a vibration main separation bed with a right-angle back plate, comprising a bed panel and a back plate, wherein the back plate is perpendicular to the bed panel, and the back plate is disposed at a separation upper frame of the bed panel.

Wherein, the bed panel is arranged or paved on the bed body of the main bed. The main selection bed is preferably an intelligent vibration main selection bed. Furthermore, a longitudinal angle monitor is arranged on the longitudinal side surface of the intelligent vibration main selection bed; and a transverse angle monitor is arranged on the transverse vibration edge of the main separation bed body.

Further, the longitudinal axis of the back plate forms a certain included angle alpha with the ground, and the included angle alpha is an acute angle. The back plate is preferably fixedly connected with the sorting upper frame of the intelligent vibration main sorting bed panel.

According to a second aspect of the technical scheme of the utility model, a sorting system using the vibrating main bed sorting surface with the right-angle back plate is provided, and comprises a raw coal feeding part, an air supply part, a sorting part and a dust removal part, wherein the raw coal feeding part comprises a product conveyor, a buffer bin and an intelligent conveying device, the sorting part comprises a host bracket, an intelligent vibrating main bed sorting device and a host hanging and discharging device, the air supply part comprises an intelligent air adjusting system formed by a left main fan and a right main fan, and the dust removal part comprises an intelligent air adjusting and dust removal system; the intelligent vibration main bed selection device adopts a pentagonal intelligent vibration main bed selection bed surface with three right-angle sides.

Preferably, the dust removing part comprises an intelligent air-adjusting dust removing system, and the intelligent air-adjusting dust removing system comprises a dust removing pipeline, a full-bag dust remover and a bag induced draft fan. The fully-closed dust collecting hood arranged at the upper part of the sorting part conveys dust generated by the sorting part to the air inlet of the dust remover through the dust removing pipeline, and the gas containing impurities or dust from the air inlet of the dust remover enters the full-bag dust remover.

The main vibrating sorting bed surface with the right-angle back plate changes the angle of the back plate into vertical 90 degrees, so that the dry sorting machine converts the original turning acting force into a thrust force for forward movement of materials in the sorting process, and the movement speed of the materials on the bed surface is accelerated. Furthermore, the vibration main selection bed surface with the right-angle back plate and the sorting system thereof have the right-angle back plate, the main selection bed surface inclined holes, the gradually-high lattice bars and the opposite main selection bed surface, which are beneficial to reducing the retention time of materials, accelerating the movement speed of the materials and improving the processing capacity of the main selection bed unit time. The equipment is energy-saving and environment-friendly, intelligent control is realized, the unit area treatment capacity is large, intelligent field adjustment is further realized, and the coal sorting effect is improved.

Drawings

FIG. 1 is a schematic diagram of a sorting system using a vibrating main deck surface with a right angle back plate of the present invention;

FIG. 2 is a top view of the intelligent vibration master cot of FIG. 1;

FIG. 3 is a schematic longitudinal side view of the intelligent vibration master cot of FIG. 1;

FIG. 4 is a longitudinal side view schematic diagram of the intelligent vibratory primary sorting bed with mounted sorting bars;

FIG. 5 is a schematic view of the vibration direction of the backplate shown in FIG. 3;

FIG. 6 is a schematic diagram of a prior art acute angle backplate;

fig. 7 is a side view of a prior art vibrating primary deck with an acute angle back plate mounted with equal height spacers.

The reference numbers in the figures are as follows: 1. a left main blower; 2. a left main blower air valve; 3. a left air distributor; 4. a product grading chute; 5. a host support; 6. a right air distributor; 7. a right main blower air valve; 8. a right main blower; 9. an air inlet of the dust remover; 10. a full bag dust collector; 11. a fully-closed dust collecting hood; 12. a dust removal pipeline; 13. a left main fan air inlet pipeline; 14. a right main fan air inlet pipeline; 15. a main selection bed; 16. hanging a host; 17. an air inducing duct; 18. a cloth bag induced draft fan; 19. a chimney of the induced draft fan; 21. a material inlet; 22. a clean coal discharge chute; 23. a middling discharging chute; 24. a gangue discharge chute; 25. a waste rock discharge cylinder; 26. a gangue overflow outlet; 27. a gangue discharge area; 28. primary sorting area; 701. a left inspection observation window; 702. a right overhaul observation window; 1501. a longitudinal angle monitor; 1502. a lateral angle monitor; 31. sorting air holes; 32. a bed panel; 41. a back plate; lattice bars b1, b2, b3, … … and bn … ….

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, not all embodiments. All other embodiments obtained by a person skilled in the art based on the embodiments in the patent of the utility model without any inventive work belong to the protection scope of the patent of the utility model.

The vibrating main sorting bed with the right-angle back plate and the sorting system thereof are further described below with reference to the accompanying drawings. As shown in fig. 3, which is a longitudinal side view of the intelligent vibration main deck, the vibration main deck with a right-angle back plate includes a deck plate 32 and a back plate 41, wherein the back plate 41 is in a perpendicular relationship with the deck plate 32, and the back plate 32 is disposed at a sorting upper frame of the deck plate 32. Further, the bed panel 32 is arranged on the bed body of the main bed 15, and the main bed 15 preferably adopts an intelligent vibration main bed; a longitudinal angle monitor 1501 is installed on the side face of the intelligent vibration main selection bed, a transverse angle monitor 1502 is installed on a transverse vibration edge (below a back plate) of the main selection bed body, the longitudinal angle monitor 1501 is used for monitoring the longitudinal vibration angle of the intelligent vibration main selection bed, and the transverse angle monitor 1502 is used for monitoring the transverse vibration angle of the intelligent vibration main selection bed; the angle parameters of the main sorting bed body are displayed in real time, the automatic adjustment of the main sorting bed body is completed by more effectively matching production, and the intellectualization of the sorting system of the vibration main sorting bed with the right-angle back plate is greatly improved.

Fig. 4 is a longitudinal side schematic view of the intelligent vibration main sorting bed provided with sorting gradually-high bars. As shown in fig. 4, the sorting system of the vibration main sorting bed with the right-angle back plate adopts a back plate structure, the back plate is perpendicular to the intelligent vibration main sorting bed panel, and the back plate 41 is arranged at the sorting upper frame of the intelligent vibration main sorting bed panel and is fixedly connected together. Optionally, the back plate 41 is detachably connected to the sorting upper rim of the intelligent vibration main sorting bed panel 32. The gradually-high separation bars bn are laid on the bed panel 32, the high points bn2 of the gradually-high separation bars bn are higher than the low points bn1 of the gradually-high separation bars bn, and the technical effect of classification and sorting of coal materials on the same bed panel is further achieved through the arrangement.

As shown in fig. 5, the vibration direction of the back plate is a schematic view, and the vibration direction of the bed plate is parallel to the longitudinal thrust applied to the coal material, that is, the coal material is subjected to downward longitudinal thrust under the dual actions of the bed plate vibration and the back plate. The back plate and the ground form a certain included angle alpha which is an acute angle. The bed panel of the intelligent vibration main sorting bed adopts the vertically arranged back panel, and directly provides a longitudinal thrust for coal materials in sorting. The angle between the back plate and the main bed selection surface is an acute angle of 60-70 degrees relative to the traditional main bed selection surface, and the existing back plate is overturned; the angle of the back plate is changed into vertical 90 degrees, so that the original turning acting force is converted into a thrust force for forward movement of the materials in the sorting process of the dry separator, and the movement speed of the materials on the bed surface is accelerated.

Referring to fig. 1, the following further describes a sorting system using the main vibrating bed with a right-angle backboard of the present invention, as shown in fig. 1, the sorting system includes a raw coal feeding portion, an air supply portion, a sorting portion and a dust removing portion, wherein the raw coal feeding portion includes a product conveyor, a buffer bin and an intelligent conveying device, the sorting portion includes a host bracket, an intelligent main vibrating bed selecting device, a host hanging and discharging device, the air supply portion includes an intelligent air adjusting system composed of a left main blower and a right main blower, and the dust removing portion includes an intelligent air adjusting and dust removing system.

Further, raw coal (including but not limited to coal products or coal materials) is conveyed into a buffer bin by a raw coal product conveyor to wait for sorting, and the raw coal in the buffer bin is intelligently distributed to a sorting part through an intelligent conveying device to be sorted. The sorting part comprises a host bracket 5, an intelligent vibration main sorting bed device, a host hanger 16 and a discharging device, wherein the intelligent vibration main sorting bed device is arranged on the host bracket 5 through the host hanger 16, the intelligent vibration main sorting bed device comprises a main sorting bed 15, and the discharging device is a material receiving chute positioned at the lower part of the intelligent vibration main sorting bed device. The receiving chute is preferably a product chute 4.

The air supply part comprises an intelligent air adjusting system consisting of a left main fan 1 and a right main fan 8, the left main fan 1 is connected to a left air distributor 3 through a left main fan air valve 2, and the left air distributor 3 blows separation air into a first group of separation chambers; the right main blower 8 is connected to the right air distributor 6 via a right main blower air valve 7, and the right air distributor 6 blows the separation air into the second group of separation chambers.

The dust removing part comprises an intelligent air adjusting dust removing system, the intelligent air adjusting dust removing system comprises a dust removing pipeline 12, a full-bag dust remover 10 and a bag-type induced draft fan 18, a fully-closed dust collecting cover 11 arranged at the upper part of the separating part conveys dust generated by the separating part to a dust remover air inlet 9 through the dust removing pipeline 12, gas containing impurities or dust through the dust remover air inlet 9 enters the full-bag dust remover 10, the full-bag dust remover 10 is connected with a left main fan air inlet pipeline 13 and a right main fan air inlet pipeline 14, the air inlet pipeline 13 of the left main fan 1 conveys the gas purified through the full-bag dust remover 10 back to the left main fan 1, and the air inlet pipeline 14 of the right main fan 8 conveys the gas purified through the full-bag dust remover 10 back to the right main fan 8. The dust removal part further comprises a bag induced draft fan 18, the bag induced draft fan 18 is connected with an induced draft fan chimney 19 and an induced draft pipeline 17, the induced draft pipeline 17 introduces dust-containing gas into the full bag-type dust remover 10, and part of clean gas treated by the bag-type dust remover 10 is discharged into the atmosphere through the induced draft fan chimney 19.

Further, a left inspection window 701 is preferably provided in the duct through which the left main blower 1 is fed into the left air distributor 3 through the left main blower air valve 2. Similarly, a right inspection window 702 is preferably provided on the duct of the right air splitter 6 through the right main blower 8 via the right main blower air valve 7. More preferably, a left service viewing window 701 is provided between the left main blower damper 2 and the left air splitter 3 and a right service viewing window 702 is provided between the right main blower damper 7 and the right air splitter 6.

The sorting system of the vibration main sorting bed with the right-angle back plate is provided with the multi-wind-source system consisting of the plurality of main fans, so that intelligent wind regulation is realized. In the sorting process, the differentiated air supply requirements are realized according to different air quantities required by each part of the main sorting bed 15. Compared with the existing dry separator which only has one main fan, the air quantity and the air pressure of an air source are single and unadjustable, but the main sorting bed area of the sorting system of the vibration main sorting bed with the right-angle back plate is very large, the number of the air chambers is more than ten, and the air quantity and the air pressure required by each air chamber also have different parameters according to different corresponding positions under the main sorting bed; furthermore, the technical problem that the air pressure is still the same parameter even if the air quantity is adjustable because a main air source is arranged below the oversized main selection bed surface is solved. A multi-wind source system is adopted, so that the adjustment of the sorting parameters of the dry separator is realized; the air supply quantity of the air sources can be adjusted at any time, and the air sources can be distributed according to the separation parameters required by each air chamber, so that the separation precision can be improved, the energy consumption can be reduced from the environmental protection perspective, the energy and the electricity are saved, and unnecessary waste is avoided.

As shown in fig. 2, the sorting system of the main vibrating sorting bed with the right-angle back plate adopts a pentagonal intelligent main vibrating sorting bed surface with three right-angle sides, the movement direction of the gangue is pushed forward along the transverse direction of the main vibrating sorting bed, and the movement direction of the clean coal is pushed forward along the longitudinal direction of the main vibrating sorting bed. The discharging section of the clean coal adopts a trapezoidal frame. Coal materials are intelligently distributed to a material inlet 21 of the intelligent vibration main selection bed through an intelligent conveying device and are conveyed to a primary separation area 28 on a bed body of the intelligent vibration main selection bed through the material inlet 21, and a plurality of separation gradually-high grid bars b1, b2, b3, … … and bn … … are arranged on the intelligent vibration main selection bed; select separately gradually high check strip and lay on intelligent vibration main selection bed, select separately gradually high check strip and intelligent vibration main selection bed pan feeding frame and be certain separation contained angle N, wherein select separately contained angle N and be the acute angle, set up the size of this separation contained angle according to the coal composition or the moisture of equipment fixing mining area, and then realized selecting separately the index according to local conditions, furthest promotes the sorting precision. The material inlet 21 is arranged at the edge of the feeding frame of the intelligent vibration main separation bed, preferably, the highest point of the feeding frame of the intelligent vibration main separation bed is overlapped with the highest point of the material inlet 21, so that coal materials are vibrated and propelled to the waste rock discharging frame of the intelligent vibration main separation bed along the upper frame of the intelligent vibration main separation bed, a certain material propelling angle M is formed between each high point oblique connecting line of a plurality of separation gradually-high lattice bars b1, b2, b3, … … and bn … … and the upper frame of the intelligent vibration main separation bed, the material propelling angle M is set according to the impurity content of the waste rocks of coal carbons separated on site, and the separation degree of clean coal, medium coal and waste rocks is improved as much as possible. A gangue discharge channel is arranged close to the gangue discharge frame of the intelligent vibration main separation bed, the separated gangue is discharged from a gangue discharge groove 24 along the gangue discharge channel, a gangue overflow outlet 26 is arranged at the top end of the gangue discharge frame of the intelligent vibration main separation bed, and the gangue overflow outlet 26 is used for quickly discharging large gangue or accumulated gangue; in addition, compared with the existing dry separation system, the separation system of the vibration main separation bed with the right-angle back plate has the advantages that the coal separation amount per unit time is higher by more than 30%, and a large amount of gangue is generated in a short time, so that a gangue discharge cylinder 25 is additionally arranged on the side surface of a gangue discharge frame of the intelligent vibration main separation bed, and the gangue which cannot be discharged through a gangue discharge chute 24 and a gangue discharge port 26 can be discharged through the gangue discharge cylinder 25 from a gangue discharge area 27. The lower separation frame of the intelligent vibration main separation bed is respectively and sequentially provided with a clean coal discharging groove 22, a middlings discharging groove 23 and a gangue discharging groove 24, and the separation side length occupied by the clean coal discharging groove 22, the middlings discharging groove 23, the gangue discharging groove 24 and the like is determined according to the separation area of the bed body of the intelligent vibration main separation bed, the set vibration frequency of vibration separation and the impurity content and water content of coal. The sorting lower frame of the intelligent vibration main separation bed is in a broken line shape, namely, part of the sorting lower frame of the intelligent vibration main separation bed is perpendicular to the feeding frame of the intelligent vibration main separation bed and is parallel to the sorting upper frame of the intelligent vibration main separation bed, and part of the sorting lower frame of the intelligent vibration main separation bed is folded upwards in the clean coal sorting area and forms an obtuse angle with the gangue discharge frame of the intelligent vibration main separation bed, so that the travel of gangue and clean coal is sequentially shortened, and the treatment capacity is increased.

The separation system of the vibration main separation bed with the right-angle back plate adopts a pentagonal intelligent vibration main separation bed surface with three right-angle sides, firstly, the transverse distance of a discharge end of waste rock is shortened, and the retention time of the waste rock on the main separation bed is reduced; secondly, the longitudinal distance of the clean coal discharge end is shortened, and the distance of an air chamber is transversely prolonged from the foremost end of the main separation bed to the gangue end, so that the area of the clean coal discharge end can be basically kept unchanged, and the changes are all to reduce the retention time of materials on the main separation bed. The lower corner is modified into a broken line trapezoid, thereby shortening the travel of gangue and clean coal and increasing the treatment capacity.

As further shown in fig. 2, the length of the sorting lower frame of the part of the intelligent vibration main sorting bed, which is perpendicular to the feeding frame of the intelligent vibration main sorting bed and parallel to the sorting upper frame of the intelligent vibration main sorting bed, is a3, the length of the sorting lower frame of the other intelligent vibration main sorting beds is a4, the length ratio is set according to the sorting amount of clean coal and the sorting degree of clean coal, for example, sorting coal into super clean coal, middlings, miscellaneous middlings, gangue and the like, and at this time, the length ratio of the broken line of the sorting lower frame of the intelligent vibration main sorting bed is adjusted according to the user's needs; similarly, the length a5 of the frame of the gangue discharge of the intelligent vibration main separation bed is set according to the gangue moving speed and the drying speed of the separated coal; the intelligent vibration main sorting bed feeding frame is divided into a material inlet 21 part and a clean coal sorting side, the length of the material inlet 21 part is a1, the length of the clean coal sorting side is a2, and the proportion between a1 and a2 of the intelligent vibration main sorting bed feeding frame is set according to the amount of coal conveyed to the vibration sorting part in unit time. Arranging an upper frame of the intelligent vibration main separation bed at the gangue discharge port 26, wherein the length of the gangue discharge port 26 is a6, and the proportion between the length a6 and the length a7 of the rest part of the upper frame of the intelligent vibration main separation bed is set according to the amount of gangue; alternatively, the gangue discharge 26 may be closed for situations where the amount of gangue discharged is relatively small.

Furthermore, a plurality of gradually-high sorting grid strips b1, b2, b3, … … and bn … … are sequentially arranged in parallel, high points b12, b22, b32, … … and bn2 … … of each gradually-high grid strip form an oblique line (connecting line), each high point oblique connecting line and the upper frame of the intelligent vibration main sorting bed form a certain material propelling angle M, and low points b11, b21, b31, … … and bn1 … … of each gradually-high grid strip are respectively connected with the feeding frame of the intelligent vibration main sorting bed and the sorting lower frame of the intelligent vibration main sorting bed. As shown in fig. 4, the gradually-high bars are fixed on the bed panel, and the high point of each gradually-high bar is close to the intelligent vibration main selection bed back plate 41.

As shown in fig. 2, the separation air holes 31 are distributed on the panel of the intelligent vibration main separation bed, and the diameter of the separation air hole close to the separation upper frame of the intelligent vibration main separation bed is larger than that of the separation air hole close to the separation lower frame of the intelligent vibration main separation bed. Specifically, referring to fig. 3, the separation air hole 31 and the intelligent vibration main selection bed panel are arranged in an inclined penetrating manner, that is, the separation air hole 31 and the intelligent vibration main selection bed panel are not arranged vertically, the air direction of the intelligent vibration main selection bed panel passing through the bed panel is vertically incident to the intelligent vibration main selection bed panel, that is, the separation air flow is vertically incident to the intelligent vibration main selection bed panel, and the separation air flow passing through the separation air hole 31 is inclined out from the bed panel and is emitted to the separation coal material. Correspondingly, the partition plates of the bed panel are arranged between the separation air holes 31 at intervals and used for adjusting the distance between the separation air holes 31. The intelligent vibration main separation bed panel is preferably a bed panel 28 with separation air holes.

In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The vibrating main bed selection surface with the right-angle back plate is characterized by comprising a bed panel (32) and a back plate (41), wherein the back plate (41) is perpendicular to the bed panel (32), and the back plate (41) is arranged on a separation upper frame of the bed panel (32).

2. The vibrating main deck surface with a right angle back plate as claimed in claim 1, characterized in that the deck plate (32) is disposed on the bed body of the main deck (15).

3. The vibrating master deck surface with right angle backboard according to claim 2, characterized in that the master deck (15) is an intelligent vibrating master deck.

4. The vibrating master deck with right angle backboard according to claim 3, wherein a longitudinal angle monitor (1501) is installed at the longitudinal side of the intelligent vibrating master deck.

5. The vibrating main deck surface with right angle back plate of claim 2, characterized in that a lateral angle monitor (1502) is installed on the lateral vibrating edge of the main deck body.

6. The vibrating master deck surface with a right angle back plate as recited in claim 5, wherein the longitudinal axis of the back plate forms an acute angle α with the ground.

7. The mainly vibrating bed selection surface with a right-angle backboard of claim 1, wherein the backboard (41) is fixedly connected with the upper selection frame of the intelligently vibrating bed selection surface board.

8. A sorting system using the main vibrating screen surface with the right-angle back plate of any one of claims 1 to 7, characterized in that the sorting system comprises a raw coal feeding part, an air supply part, a sorting part and a dust removal part, wherein the raw coal feeding part comprises a product conveyor, a buffer bin and an intelligent conveying device, the sorting part comprises a host bracket, an intelligent main vibrating screen device, a host hanging and discharging device, the air supply part comprises an intelligent air adjusting system consisting of a left main fan and a right main fan, and the dust removal part comprises an intelligent air adjusting and dust removal system; the intelligent vibration main bed selection device adopts a pentagonal intelligent vibration main bed selection bed surface with three right-angle sides.

9. The sorting system using the vibrating main deck surface with the right-angle backboard as claimed in claim 8, wherein the dust removing part comprises an intelligent air-adjusting dust removing system, and the intelligent air-adjusting dust removing system comprises a dust removing pipeline (12), a full bag dust remover (10) and a bag induced draft fan (18).

10. The sorting system using a vibrating main deck surface with a right-angle back plate according to claim 9, wherein a totally enclosed dust cage (11) provided at an upper portion of the sorting part transfers dust generated from the sorting part to the dust collector air inlet (9) through a dust collecting duct (12), and the gas containing impurities or dust passing through the dust collector air inlet (9) enters the full bag dust collector (10).