CN113457979A

CN113457979A - High-efficiency comprehensive winnowing equipment with function of separating specific gravity approaching objects

Info

Publication number: CN113457979A
Application number: CN202110653538.2A
Authority: CN
Inventors: 刘云鹤; 张大勇; 龙春国; 孟利; 秦朋; 王亮; 李子宸; 徐立荣; 宋强; 张肇强
Original assignee: Beijing Green Use Environmental Protection Science And Technology Co ltd
Current assignee: Beijing Green Use Environmental Protection Science And Technology Co ltd
Priority date: 2021-06-11
Filing date: 2021-06-11
Publication date: 2021-10-01

Abstract

The application discloses winnowing equipment is synthesized to high efficiency with select separately proportion and be close thing function relates to the refuse treatment field. The apparatus comprises: the device comprises a first-stage fan assembly, a third-stage fan assembly, a first-stage rotating hub assembly, a second-stage rotating hub assembly, a bouncing belt section, a winnowing light material discharging belt conveyor, a winnowing bin and a settling chamber. The tertiary fan subassembly is configured to carry out tertiary selection by winnowing to light thing, carries out the second grade selection by winnowing to heavy thing, and it arranges in same vertical plane from high to low, and one-level and second grade rotary hub subassembly correspond the place ahead of arranging the tuyere of first order fan subassembly and second level fan subassembly. The equipment realizes three-stage air separation on the light objects and two-stage air separation on the heavy objects through the first-stage to third-stage fan assemblies; the materials sorted out are scattered and thinned step by step through the first-stage rotating hub assembly and the second-stage rotating hub assembly, the impurity content of a winnowing heavy object is reduced, the winnowing quality is improved, the four-stage sorting of light objects is realized through the bouncing belt section, and then the high-efficiency comprehensive winnowing is realized.

Description

High-efficiency comprehensive winnowing equipment with function of separating specific gravity approaching objects

Technical Field

The application relates to garbage treatment equipment, in particular to high-efficiency comprehensive winnowing equipment with a function of separating objects with similar specific gravity.

Background

The general large wind separation equipment is mainly used for primary wind separation, and only primary wind specific gravity separation is carried out on incoming materials to obtain two materials, namely light materials and heavy materials, so that the purity of primary wind separation products cannot be guaranteed. On the basis, in order to ensure the purity of the winnowing product, some equipment manufacturers often adopt another winnowing equipment to further refine the primary winnowing product under the condition that the quality of the winnowing product of the existing winnowing machine cannot meet the requirement, but the quality of the winnowing product after winnowing in the scheme is still not ideal, the equipment investment is increased, the floor area of a production line is increased, and the economy is poor.

Based on this, it is urgently needed to develop a comprehensive winnowing device with high winnowing quality and high winnowing efficiency.

Disclosure of Invention

It is an object of the present application to overcome the above problems or to at least partially solve or mitigate the above problems.

The application provides a winnowing equipment is synthesized to high efficiency with select separately proportion and approach thing function includes:

the first-stage to third-stage fan assemblies are configured to carry out three-stage air separation on light objects and carry out two-stage air separation on heavy objects, the air nozzles are arranged in the same vertical plane from high to low, the air nozzles corresponding to the first-stage to third-stage fan assemblies are arranged from back to front, the material sliding plates are correspondingly arranged between every two air nozzles, and the first-stage to third-stage fan assemblies are configured to slide out heavy objects selected by air along the material sliding plates,

the first-stage rotating hub assembly and the second-stage rotating hub assembly are correspondingly arranged in front of the air nozzle of the first-stage fan assembly and the air nozzle of the second-stage fan assembly, are configured to rotate and convey the air-separated materials, and are further configured to gradually scatter and thin the separated materials;

the light thing ejection of compact belt feeder of selection by winnowing divide into:

a bouncing belt section arranged in the blanking range of the secondary rotating hub component and configured to carry out the fourth-stage sorting of the light materials,

a conventional discharge section configured to convey the sorted light matter;

the winnowing bin is configured into a closed structure and is at least positioned at the positions of the corresponding air nozzles of the first-stage fan assembly, the third-stage fan assembly and the first-stage rotating hub assembly and the second-stage rotating hub assembly; and

and the settling chamber is configured into a closed structure, is positioned at the positions of the bouncing belt section and the conventional discharging section of the air separation light object discharging belt conveyor, and is communicated with the air separation bin.

Optionally, each of the first to third stage fan assemblies comprises: the corresponding fan is used for generating wind power and winnowing the materials;

and the air pipe is connected with the air outlet of the corresponding fan and the corresponding air nozzle and is used for conveying air flow.

Optionally, the tuber pipe that each level fan subassembly corresponds is the rubber tube, and each level fan subassembly still includes the tuyere angle adjustment mechanism that corresponds, links to each other with the tuber pipe that corresponds, configures into the every single move through adjusting this tuber pipe, and then adjusts the every single move angle that corresponds the tuyere.

Optionally, each of the primary and secondary hub assemblies comprises: corresponding to

The driving speed reducing motor is used for providing power; and

the rotating hub is connected with the driving speed reduction motor, and a plurality of material poking rods are vertically arranged in the circumferential direction of the rotating hub and used for scattering and thinning materials falling on the rotating hub.

Optionally, the first-stage rotating hub and the second-stage rotating hub are arranged in an up-and-down staggered mode.

Optionally, one end of the bouncing belt section is hinged to the conventional discharging section, and the other end of the bouncing belt section is connected with the bouncing belt section angle adjusting mechanism, so that the angle adjustment of the bouncing belt section is realized.

Optionally, a soft curtain is arranged between the bouncing belt segment and the settling chamber, and sealing between the bouncing belt segment and the settling chamber is achieved through the soft curtain.

Optionally, the high-efficiency comprehensive winnowing device further comprises a feeding belt conveyor configured to convey materials, the feeding belt conveyor is arranged on the two parallel walking tracks above the first-stage fan assembly, four walking rollers are mounted below the feeding belt conveyor, and the feeding belt conveyor moves along the two parallel walking tracks through the four walking rollers, so that the front and rear position adjustment of the feeding belt conveyor can be realized.

Optionally, the high-efficiency comprehensive winnowing device further comprises four sets of height adjusting devices, which are symmetrically arranged below the two parallel walking rails and are configured to adjust the height position and the inclination angle of the feeding belt conveyor.

Optionally, each set of height adjusting device adopts a hinged screw adjusting structure.

According to the efficient comprehensive winnowing equipment with the function of separating objects with the specific gravity close to that of the objects, the light objects are subjected to three-stage winnowing through the first-stage to third-stage fan assemblies, and the heavy objects are subjected to two-stage winnowing; through one-level and second grade rotary hub subassembly divide the material of selecting out step by step to break up and draw thin, reduce the miscellaneous rate that contains of selection by winnowing heavy object, improve selection by winnowing quality, realize the level four of light thing through the spring belt section and select separately, and then realize that the proportion is close the thing and handle, realize high-efficient comprehensive selection by winnowing.

The above and other objects, advantages and features of the present application will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the present application will be described in detail hereinafter by way of illustration and not limitation with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

fig. 1 is a schematic front view of a high efficiency integrated air classification apparatus having the function of classifying specific gravity neighbors in accordance with one embodiment of the present application;

figure 2 is a schematic side view of the high efficiency integrated air classification apparatus of figure 1;

fig. 3 is a schematic top plan view of the high efficiency integrated air classification apparatus of fig. 1;

FIG. 4 is a schematic cross-sectional view taken along section line A-A in FIG. 1;

FIG. 5 is a schematic cross-sectional view of the cleaning device shown in FIG. 4;

fig. 6 is a schematic structural view along direction F in fig. 5.

The symbols in the drawings represent the following meanings:

1. a combined bracket, 2, a feeding belt conveyor, 3, a traveling roller, 4 traveling tracks, 5, a height adjusting device, 6, a locking device, 7, an air separation bin, 8, an air separation bin bracket, 9, a primary rotating hub component, 10, a secondary rotating hub component, 11, a primary fan component, 12, a primary fan tuyere adjusting mechanism, 13, a primary fan tuyere, 14, a secondary fan component, 15, a secondary fan tuyere, 16, a secondary fan tuyere adjusting mechanism, 17, a tertiary fan component, 18, a protective shell, 19, a tertiary fan tuyere, 20, a tertiary fan tuyere adjusting mechanism, 21, a primary air separation heavy object slide plate, 22, a secondary air separation heavy object slide plate, 23, an air separation heavy object discharge belt conveyor, 24, a settling chamber, 25, a light object discharge belt conveyor, 26, an air separation light object discharge belt conveyor frame, 27, a conventional discharge section, 28, a bounce section, 29. the device comprises a bouncing belt section angle adjusting mechanism, a soft curtain 30, a return air pipe 31, a return air inlet outer cover 32, a return air inlet filter screen 33, a cleaning device 34, a motor 35, a suspender connecting seat 36, a suspender 37, a cleaning piece fixing seat 38, a cleaning piece 39, a layering 40, a layering 41 fixing bolt pair, a spring 42, a washer 43, a bottom locking nut 44 and an upper cover 45.

Detailed Description

In the process of implementing the present application, the inventors found that: even if some large winnowing equipment integrates two-stage, three-stage or even multi-stage winnowing, only the repeated multi-stage purification and separation of a single material in two types of products of one-stage winnowing are carried out, so that the purity of another one-stage winnowing product which is not subjected to repeated winnowing or repeated winnowing cannot be ensured. For example, for light objects and heavy objects separated by one-stage air separation, the light objects are subjected to multi-stage purification and separation by multi-stage air separation, and the purity of the separated heavy objects cannot be guaranteed.

In addition, the inventors have also found that: in other two-stage rotating hub winnowing in the prior art, the two-stage rotating hubs are arranged in front and back, and the second-stage rotating hub cannot bear medium weights conveyed by the first-stage rotating hub. In the winnowing process, a material, namely a specific gravity close object, is generally additionally sorted out. The specific gravity in the garbage is mostly water-absorbing textile fabrics or light matters of conglomerate materials or heavy matters wrapping with silt, the tail end digestion is generally carried out with the light matters together, and not only is the discharging belt conveyor additionally increased, but also the equipment floor area and the transportation cost are increased. In addition, the surface of the rotary hub of the second-stage rotary hub winnowing machine in the prior art is smooth, the flexible objects are only driven to pass by the pressing of the wind power of the fan and the friction force between the rotary hub and the flexible objects, and when the flexible objects are aggregated and the light objects carry silt or heavy objects, the materials usually fall into a winnowing heavy object area instead of passing through the rotary hub only under the action of the wind power and the friction force on the surface of the rotary hub, so that the situation that the impurity content of the winnowing heavy objects is too high and the winnowing heavy objects are unqualified is often caused.

Based on this, the inventors developed the present application.

Fig. 1 is a schematic front view of a high efficiency integrated air classification apparatus having a function of classifying specific gravity neighbors in accordance with one embodiment of the present application. Fig. 2 is a schematic side view of the high efficiency integrated air classification apparatus of fig. 1. Fig. 3 is a schematic top view of the high-efficiency integrated air classification apparatus shown in fig. 1.

As shown in fig. 1, and also referring to fig. 2-3, the embodiment provides a high-efficiency comprehensive winnowing device with the function of sorting density approaching objects, which comprises: a first-stage fan component 11, a second-stage fan component 14, a third-stage fan component 17, a first-stage rotating hub component 9, a second-stage rotating hub component 10, an air separation light-weight material discharging belt conveyor 25, an air separation bin 7 and a settling chamber 24. The primary fan assembly 11, the secondary fan assembly 14 and the tertiary fan assembly 17 are configured to perform tertiary air separation on the light objects and perform secondary air separation on the heavy objects. The primary fan assembly 11, the secondary fan assembly 14 and the tertiary fan assembly 17 are arranged in the same vertical plane from high to low. The air nozzles corresponding to the first-stage fan assembly 11, the second-stage fan assembly 14 and the third-stage fan assembly 17 are arranged from back to front. Namely, the primary fan tuyere 14, the secondary fan tuyere 15 and the tertiary fan tuyere 19 are arranged from back to front. And material sliding plates are correspondingly arranged between every two stages of air nozzles and are configured to enable the weights selected by the air to slide out along the material sliding plates. A primary winnowing heavy object material sliding plate 21 is arranged between a primary fan tuyere 14 of the primary fan assembly 11 and a secondary fan tuyere 15 of the secondary fan assembly 14, and a secondary winnowing heavy object material sliding plate 22 is arranged between the secondary fan tuyere 15 of the secondary fan assembly 14 and a tertiary fan tuyere 19 of the tertiary fan assembly 17. The first-stage rotating hub assembly 9 and the second-stage rotating hub assembly 10 are correspondingly arranged in front of a blast nozzle of the first-stage fan assembly 11 and a blast nozzle of the second-stage fan assembly 14, are configured to rotate and carry out winnowing on the materials, and are further configured to gradually scatter and thin the sorted materials. The air separation light material discharging belt conveyor 25 comprises a bounce belt section 28 and a conventional discharging section 27. A bouncing belt segment 28 is disposed within the blanking extent of the secondary hub assembly 10 and is configured for fourth-stage sorting of light materials. A conventional outfeed section 27 is connected to the bouncing belt section 28 and is configured to convey the sorted lights. The winnowing bin 7 is configured as an enclosed structure at least at the locations of the primary 13, secondary 15 and tertiary blower nozzles, and at the locations of the primary 9 and secondary 10 rotor assemblies. The settling chamber 24 is configured into a closed structure and is positioned at the positions of the bouncing belt section 28 and the normal discharging section 27 in the air separation light object discharging belt conveyor 25 and is communicated with the air separation bin 7. As shown in fig. 3, the air return structure is disposed at the top of the settling chamber 24 and configured to return the wind generated by the first, second and

third fan assemblies

11, 14 and 17 to the first, second and

third fan assemblies

11, 14 and 17, so as to use the wind force internal circulation to improve the wind energy utilization efficiency and simultaneously enable the dust emission control.

In this embodiment, the direction of the air outlet of the first stage fan assembly 11 is defined as front, and the opposite direction of the air outlet direction is defined as rear.

As shown in fig. 1, in specific implementation, the high-efficiency comprehensive air separation equipment further comprises a combined support 1, an air separation bin support 8, an air separation heavy material discharge belt conveyor 23 and an air separation light material discharge belt conveyor frame 26. The combined support 1 is used for installing a feeding belt conveyor 2, a first-stage fan assembly 11, a second-stage fan assembly 14 and a third-stage fan assembly 17. The winnowing bin bracket 8 is used for supporting the winnowing bin 7 and is also used for mounting a primary rotating hub component 9 and a secondary rotating hub component 10. The winnowing heavy material discharging belt conveyor 23 is correspondingly arranged below the first-stage rotating hub assembly 9 and the second-stage rotating hub assembly 10. The winnowing light material discharging belt conveyor frame 26 is positioned at the front end of the secondary rotating hub component 10 and is used for supporting the winnowing light material discharging belt conveyor 25.

As shown in fig. 1, in this embodiment, the high-efficiency integrated air separation equipment further includes a feeding belt conveyor 2 configured to convey materials. The feeding belt conveyor 2 is arranged on two parallel walking tracks 4 above the first-stage fan assembly 11. In this example, two parallel running rails 4 are fixed to the assembly frame 1. Four walking rollers 3 are installed below the feeding belt conveyor 2, so that the feeding belt conveyor 2 moves along the two parallel walking tracks 4 through the four walking rollers 3, and the front and back position adjustment of the feeding belt conveyor 2 is realized.

Further, as shown in fig. 1, in this embodiment, the efficient integrated air separation equipment further includes four sets of height adjusting devices 5. Four sets of height adjusting devices 5 are symmetrically arranged below the two parallel travelling rails 4 and are configured to realize the adjustment of the height position and the inclination angle of the feeding belt conveyor 2. And the four sets of height adjusting devices 5 are adjusted to be lifted or lowered to the same position, so that the height position of the feeding belt conveyor 2 can be adjusted. And meanwhile, the two sets of height adjusting devices 5 at the positions of the single sides of the two parallel traveling rails 4 are adjusted, and the two sets of height adjusting devices 5 at the positions of the other sides are kept unchanged, so that the pitching angle adjustment of the feeding belt conveyor 2 can be realized. So that the material of the feeding belt conveyor 2 accurately falls on the second quadrant of the primary rotating hub in the primary rotating hub assembly 9.

Further, as shown in fig. 1, in the present embodiment, each set of height adjusting device 5 adopts a hinged screw adjusting structure. Each set of height adjusting device 5 comprises a hinge arranged below the corresponding walking track 4, a nut fixedly connected with the hinge and a screw rod meshed with the nut, and the screw rod is fixed on the combined support 1. The height position and the inclination angle of the feeding belt conveyor 2 are adjusted by the meshing of the nut and the screw rod.

Further, as shown in fig. 1, in the present embodiment, symmetrically disposed position locking devices 6 are further disposed on the front and rear sides of the feeding belt machine 2, and are configured to lock the feeding belt machine 2 in the optimal feeding position reached by the adjusted feeding belt machine 2. In specific implementation, the position locking device 6 is a locking screw.

Further, as shown in fig. 1, in the present embodiment, each of the first stage fan assembly 11, the second stage fan assembly 14, and the third stage fan assembly 17 includes: a corresponding fan and an air pipe. The fan is used for generating wind power and winnowing the materials. The air pipe is connected with the air outlet of the corresponding fan and the corresponding air nozzle and is used for conveying air flow. The first stage fan assembly 11 includes a first stage fan, a first stage fan air duct, and a first stage fan tuyere 13. The second stage fan assembly 14 includes a second stage fan, a second stage fan duct, and a second stage fan tuyere 15. The tertiary fan assembly 17 includes a tertiary fan, a tertiary fan duct, and a tertiary fan tuyere 19.

Further, as shown in fig. 1, in this embodiment, the air duct corresponding to each stage of the fan assembly is a rubber hose. Each stage of fan assembly further comprises a corresponding air nozzle angle adjusting mechanism, namely the first stage fan assembly 11 further comprises a first stage fan air nozzle adjusting mechanism 12, the second stage fan assembly 14 further comprises a second stage fan air nozzle adjusting mechanism 16, the third stage fan assembly 17 further comprises a third stage fan air nozzle adjusting mechanism 20, the corresponding air nozzle angle adjusting mechanism is connected with the corresponding air pipe and configured to adjust the pitching angle of the corresponding air nozzle by adjusting the pitching angle of the air pipe. Each level tuyere angle adjustment mechanism is a bolt rod set, and through adjusting the bolt rod set, the angle adjustment of the corresponding fan tuyere is realized, and the optimal air outlet angle is realized through adjustment, so that the ideal winnowing effect is achieved.

Further, as shown in fig. 1, in the present embodiment, a protective casing 18 is provided in the air duct of the tertiary air blower in the area flushed by the secondary air separation weight.

Further, as shown in fig. 1, in this embodiment, the primary air separation weight material sliding plate 21 is an arc-shaped plate, and a reasonable elevation angle is set at the discharge end of the primary air separation weight material sliding plate 21, so as to ensure that the falling point can fall on the second quadrant cylindrical surface of the secondary hub in the secondary hub assembly 10 after the primary air separation weight material is accelerated and thrown out by the primary air separation weight material sliding plate 21.

Further, as shown in fig. 1, in the present embodiment, each of the first stage rotating hub assembly 9 and the second stage rotating hub assembly 10 includes: a corresponding driving speed reducing motor and a rotating hub. Namely, the first-stage rotating hub assembly 9 comprises a first-stage rotating hub driving speed reducing motor and a first-stage rotating hub. The secondary rotating hub assembly 10 includes a secondary rotating hub drive reduction motor and a secondary rotating hub. The first-stage rotating hub driving speed reduction motor and the second-stage driving speed reduction motor are used for providing power, and forward rotary conveying of the materials can be achieved. The first-stage rotating hub is connected with the first-stage driving speed reduction motor, and the second-stage rotating hub is connected with the second-stage driving speed reduction motor. A plurality of material poking rods are arranged on the circumferential direction vertical roller surface corresponding to the first-stage rotating hub and the second-stage rotating hub and used for scattering and thinning materials falling on the rotating hubs.

Further, as shown in fig. 1, in the present embodiment, the first-stage rotating hubs and the second-stage rotating hubs are arranged in an up-and-down staggered manner. Furthermore, the roller surface linear speed of the secondary rotating hub is higher than that of the primary rotating hub.

Further, as shown in fig. 1, in this embodiment, the first-stage rotating hub assembly 9 and the second-stage rotating hub assembly 10 are correspondingly provided with adjusting screws, so that the front and rear positions of the corresponding rotating hubs can be adjusted, and the corresponding rotating hubs can achieve a better progressive scattering and sorting effect.

Further, as shown in FIG. 1, in this embodiment, one end of the bouncing belt segment 28 is hinged to the conventional outfeed segment 27. The other end of the bouncing belt segment 28 is connected with a bouncing belt segment angle adjusting mechanism 29 to realize the angle adjustment of the bouncing belt segment 28.

In specific implementation, the angle adjusting mechanism 29 of the bouncing belt section is an electric push rod, the end of the electric push rod is fixedly connected with the end head of the other end of the bouncing belt section 28, and the angle adjustment of the bouncing belt section 28 can be realized by the extension or contraction of the electric push rod in cooperation with the hinged structure at one end of the bouncing belt section 28, so that an ideal sorting effect is achieved. In other embodiments, the bouncing belt segment angle adjusting mechanism 29 can also be a manual adjusting lever.

Furthermore, the included angle between the bouncing belt section 28 and the horizontal plane is adjustable from 25 degrees to 40 degrees.

Further, as shown in FIG. 1, in this embodiment, the bouncing belt segment 28 is angularly adjustable to seal with the settling chamber 24 with a soft curtain 30. The bounce belt section 28 can still form a closed box body with the settling chamber 24 after being adjusted in angle through the soft curtain 30, and air leakage or light objects are prevented from escaping.

As shown in fig. 1, in the present embodiment, the bouncing belt section 28 can be regarded as a part of the air separation light-weight material discharging belt conveyor 25. The winnowing light material discharging belt conveyor 25 is divided into a front section and a rear section which are hinged. The front section is a feeding section and is a bouncing belt section 28 with an independently adjustable inclination angle. The rear section is shared by the conventional discharging section 27 of the winnowing light material discharging belt conveyor.

More specifically, as shown in fig. 1, in this embodiment, the settling chamber 24 is integrally located on the frame 26 of the winnowing light-weight material discharge belt conveyor. The settling chamber 24 is designed with matched sectional area and overall dimension according to parameters such as total air intake, cross-sectional area of an air inlet channel, wind speed required by light object settling and the like.

In the process of implementing the present application, the inventors found that: at present, domestic environmental protection is increasingly strict, and the control on site dust emission is higher and higher, so that the winnowing equipment is required to have dust fall measures. At present, domestic environmental protection is increasingly strict, and the control on the raise dust in a construction site is higher and higher, so most winnowing starts to take dust fall measures or use dust removal equipment step by step, but the cost of the dust removal equipment is higher, and a dust control means which can meet the raise dust control requirement of most use scenes and is more economic is urgently needed to be found. On the basis of this, the method is suitable for the production,

as shown in fig. 3, the high-efficiency comprehensive air separation equipment further comprises: an air return structure. As shown in fig. 4, the return air structure has a return air inlet filter 33. As shown in fig. 3, in this embodiment, the air return structure further includes: a return air inlet and a return air duct 31. A plurality of air return openings are arranged at the top of the settling chamber 24. Each return air inlet is provided with one return air inlet filter screen 33. As shown in fig. 2, the number of the return ducts 31 is at least three. As shown in fig. 3, one end of three return ducts 31 is connected to a plurality of return air ports. As shown in fig. 2, the other ends of the three return air pipes 31 are connected to the air inlets of the fans of the corresponding first stage fan assembly 11, second stage fan assembly 14 and third stage fan assembly 17.

In addition, the inventor also finds that the return air inlet filter screen 33 is easily blocked by light objects frequently when wind power internal circulation is used, so that the bad results of rapid reduction of winnowing effect, overlarge fan pressure and even overheating trip are caused, and workers are required to stop the machine regularly to clean the return air inlet filter screen 33. Once the material is dry and has a high content of light-weight fragments, the air return inlet filter screen 33 is blocked quickly and needs to be stopped frequently for cleaning, so that the labor intensity of workers is high, and the production continuity and the production efficiency are greatly reduced. In order to solve the above problem, as shown in fig. 5, referring also to fig. 6, the return air structure is provided with a sweeping device 34 for automatically sweeping the return air inlet filter screen 33.

As shown in fig. 5, in the present embodiment, further, a return air inlet cover 32 is provided at each return air inlet, and an upper cover 45 is provided at the top of the return air inlet cover 32. Each return air inlet housing 32 is communicated with the return air pipe 31 through a pipeline. In order to prevent the return air inlet filter screen 33 from being blocked by light objects to influence the sedimentation effect and damage the fan, a cleaning device 34 is independently arranged on each return air inlet filter screen 33. Namely, one cleaning device 34 is correspondingly arranged at each return air inlet filter screen 33.

In this embodiment, as shown in fig. 5, each cleaning device 34 includes: motor 35, boom connecting base 36, boom 37, cleaning element fixing base 38 and cleaning element 39. The motor 35 is used to provide power and is installed at the upper cover 45. The boom connecting base 36 is fixedly connected with the motor 35. The hanger rods 37 are installed at the hanger rod connection seats 36, penetrate through the air return port outer covers 32 and the corresponding air return port filter screens 33, and are configured to rotate with the motor 35. A cleaning element holder 38 is fixedly attached at the end of the boom 37. The cleaning element 39 is mounted on the cleaning element fixing base 38 and configured to rotate together with the suspension rod 37 to automatically clean the return air inlet filter screen 33. More specifically, the sweeping member 39 is a blade or brush assembly arranged in a cross or a line. That is, each cleaning device 34 in this embodiment is similar to a revolving cleaner of a ceiling fan structure, and the low-speed variable-frequency motor drives the suspension rod 37 and the cross-shaped or in-line scraper or brush assembly fixed at the tail end thereof to rotate so as to realize cleaning.

Further, as shown in fig. 5, since the cleaning element 39 is a consumable element, in order to facilitate replacement, in the present embodiment, the fixing structure of the cleaning element 39 in each cleaning device 34 is designed to be a detachable structure, and may include a fixing back plate, a bead 40, and a bead fixing bolt pair 41. The fixed back plate adopts two vertical plates with symmetrical outer circumferences and is welded with an inner flat-opening shaft sleeve positioned in the center. The cleaning piece 39 is fixedly arranged at the fixed back plate through a pressing strip 40 and a pressing strip fixing bolt pair 41.

Further, as shown in fig. 5, each sweeping device 34 further includes: a top tension spring 42, a washer 43 and a bottom lock nut 44 mounted on the end of the boom 37. Through adjusting the position of the relative jib 37 of lock nut to tightly push up and compress and push up tight spring 42, push up tight spring 42 and drive through the pretightning force and clean piece 39 and closely laminate with air outlet filter screen 33 all the time, make and clean piece 39 still can with air outlet filter screen contact under the condition of wearing and tearing, realize effectively cleaning.

As shown in fig. 1, the working principle of the present application is as follows:

the feeding belt conveyor 2 throws the materials into the winnowing bin 7. The first-stage fan assembly 11 acts wind power on the thrown incoming material through an air pipe and a first-stage fan air nozzle 13 located below the discharge end of the feeding belt conveyor 2. Lighter substances in the incoming material are blown into the deep part of the air separation bin 7 and even directly enter the settling chamber 24. And heavy objects, conglomerate objects, textile fabrics with higher water content and heavier weight or light objects wrapped by the heavy objects cannot be blown far due to limited wind power, most of the heavy objects in the part fall on the outer cylindrical surface of the second quadrant region of the first-stage rotating hub, and a small part of overweight falling points are closer and directly fall on the first-stage winnowing heavy object material sliding plate 21 below together with the rest heavy objects. The material stirring rod is uniformly distributed on the outer cylindrical surface of the one-level rotating hub, and vertical roller surfaces can rebound and scatter after medium-weight objects fall on the roller surfaces, so that agglomerated materials and light-weight objects wrapping the heavy objects can be made, and the heavy objects such as aggregates carried in the agglomerated materials can roll out.

Due to the mutual wrapping effect of the materials, the heavy objects obtained by the primary air separation can be dispersed by the primary rotating hub, and the light objects and the flexible heavy objects can be carried by the materials which are not fully dispersed. In this application, the first-stage winnowing heavy object material sliding plate 21 is used for accelerating sliding throwing under the action of gravity after the first-stage winnowing heavy object falls, so that the first-stage winnowing heavy object material sliding plate is thrown to a second quadrant area on the outer cylindrical surface of the lower front second-stage rotating hub with the material stirring rod, and then the second-stage winnowing heavy object material sliding plate is thrown, broken and intercepted by flexible objects again. And a tuyere for secondary air separation is arranged below the tail end of the primary air separation heavy object sliding plate 21, so that the primary air separation heavy object is blown by wind power of a secondary fan in the processes of throwing and colliding with a secondary rotating hub to break away, and secondary air separation of the heavy object is realized. The material shifting rod of the first-level rotating hub can possibly carry heavy objects such as aggregates and the like in the flexible objects hung from the material shifting rod, the blanking area below the front of the material shifting rod is connected with the second-level rotating hub, the materials hung from the material shifting rod can be broken and scattered in a second-level falling mode and intercepted by the flexible objects, and meanwhile, the materials, the light objects blown in by the first-level winnowing and the small heavy objects mixed with the materials can pass through the wind action area of the second-level fan when falling through the passage area formed between the first-level rotating hub and the second-level rotating hub, so that the second-level winnowing of the first-level winnowing light objects is realized.

In a similar way, the material which is brought by the material shifting rod of the second-stage rotating hub is shifted forwards, and in the process of falling to the bouncing belt section at the feeding end of the light material discharging belt conveyor for air separation below, the three-stage air separation of the material is realized under the action of the wind blown out by the three-stage fan tuyere 19 arranged below the second-stage rotating hub by the three-stage fan. Meanwhile, when the light objects blown in by the first two stages of air separation and the small heavy objects mixed with the light objects fall through the wind action area of the tertiary fan tuyere 19, the light objects can be separated by the third stage of air separation and the fourth stage of separation of the bouncing belt section 28 by matching with the separation effect of the bouncing belt section on the aggregate and the flexible objects. The principle of sorting the bouncing belt section 28 is to utilize the difference of friction coefficient or adhesive force between heavy objects such as aggregate and light soft objects and the conveyor belt surface of the bouncing belt section 28 with a large inclination angle to effectively separate the heavy objects and the light soft objects, wherein the aggregate and the belt surface roll down and back towards the feeding end of the bouncing belt section 28 due to small adhesive force by adjusting the inclination angle of the bouncing belt section 28, and the light soft objects can be attached to the bouncing belt section surface and conveyed to the discharging end along with the belt.

The settling chamber 24 is designed with matched sectional area and overall dimension according to parameters such as total air intake, cross-sectional area of an air inlet channel, wind speed required by light object settling and the like.

Finally, the incoming materials are subjected to the comprehensive action of the air separation equipment, the two-stage air separation and purification of heavy materials such as aggregates and the like can be realized, and the three-stage air separation and purification of flexible materials such as light materials and the like can be realized by additionally arranging the bouncing belt section 28. The second-stage winnowing heavy objects, small aggregate and other heavy objects separated by the bounce belt section 28 are converged into the winnowing heavy object discharging belt conveyor 23 and conveyed to one side of the winnowing machine for stacking. The separated light objects and other flexible objects are carried by the air separation light object discharging belt conveyor 25 and conveyed to the outer side of the tail end of the air separator for stacking.

It is thus clear that the high-efficient winnowing equipment of synthesizing of this application not only can realize the one-level selection by winnowing to the supplied materials in same equipment, can also realize the second grade selection by winnowing to the heavy object that the one-level selection by winnowing was divided to the light thing that the one-level selection by winnowing was divided simultaneously realizes that second grade, tertiary selection by winnowing plus once bounce belt section 28 select separately altogether four grades and select separately, has greatly improved the purity of each final product of selecting separately, and equipment area is less moreover, and economic nature promotes by a wide margin. In addition, this application adopts the two-stage rotary hub of equipartition kickoff pole to be upper and lower staggered arrangement on the outer cylinder face, and the configuration form that second grade rotary hub is higher than one-level rotary hub roll surface linear velocity to and realize to the supplied materials with the cooperation of one-level selection by winnowing aggregate swift current flitch, especially wherein the conglomerate, the higher heavier fabric of moisture content, wrap up step-by-step or multistage scattering, the drawing of medium-weight thing that wind-force is difficult to blow far away such as the light thing of having carried aggregate or silt, make the material fully scatter and open the selection by winnowing of being convenient for, can realize simultaneously that the interception and the transport to medium-weight thing such as fabric have further promoted the pure degree of selection by winnowing final product especially selection by winnowing heavy thing. In addition, this application has all been equipped with the electronic gyration sweeper of similar ceiling fan structure for each return air inlet filter screen 33, can set up to the normal motion and also can set up to regularly clean, and the light thing of stifled hole on the ability automatic clear filter screen keeps the return air unobstructed, has saved the manual work of cleaning the net promptly, has avoided again because of the shut down mistake product that the filter screen jam caused, has promoted economic benefits.

It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which this application belongs.

In the description of the present application, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present application, "a plurality" means two or more unless specifically defined otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

The above description is only for the preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. An efficient comprehensive winnowing device with a function of separating specific gravity approaching objects is characterized by comprising:

a conventional discharge section configured to convey the sorted light matter;

2. The efficient integrated air classification apparatus of claim 1 wherein each of the first through third stage fan assemblies includes: corresponding to

The fan is used for generating wind power and winnowing the materials;

3. The efficient integrated winnowing device of claim 2, wherein the duct associated with each stage of fan assembly is a hose, and each stage of fan assembly further comprises a corresponding nozzle angle adjustment mechanism coupled to the corresponding duct and configured to adjust the pitch angle of the corresponding nozzle by adjusting the pitch of the duct.

4. The efficient integrated air classification apparatus of claim 1 wherein each of said primary and secondary rotor hub assemblies comprises: corresponding to

The driving speed reducing motor is used for providing power; and

5. The efficient integrated air classification apparatus according to claim 4, wherein said primary rotor hub and said secondary rotor hub are staggered up and down.

6. The efficient integrated air separation apparatus of claim 1 wherein one end of said sprung belt segment is hinged to said conventional discharge segment and the other end is connected to a sprung belt segment angle adjustment mechanism to effect said sprung belt segment angle adjustment.

7. The efficient integrated air classification apparatus according to claim 6, characterized in that a soft curtain is arranged between the bouncing belt segment and the settling chamber, and the soft curtain is used for realizing sealing between the bouncing belt segment and the settling chamber.

8. The efficient comprehensive winnowing device according to claim 1, further comprising a feeding belt conveyor configured to convey materials, wherein the feeding belt conveyor is arranged on two parallel traveling rails above the first stage fan assembly, four traveling rollers are mounted below the feeding belt conveyor, and the feeding belt conveyor can move along the two parallel traveling rails through the four traveling rollers, so that the front and rear position adjustment of the feeding belt conveyor can be realized.

9. The efficient integrated air separation device according to claim 8, further comprising four sets of height adjusting devices symmetrically arranged below the two parallel traveling rails and configured to adjust the height position and the inclination angle of the feeding belt conveyor.

10. The efficient integrated air separation apparatus of claim 9 wherein each set of height adjustment means is an articulated screw adjustment structure.