CN113680644B

CN113680644B - Screening box of sorting machine

Info

Publication number: CN113680644B
Application number: CN202110958550.4A
Authority: CN
Inventors: 王琦敏; 魏中明; 崔福龙; 张洪杰
Original assignee: BCEG Resources Recycling Co Ltd
Current assignee: Beijing Construction Engineering Resource Recycling Co ltd
Priority date: 2021-08-20
Filing date: 2021-08-20
Publication date: 2022-09-02
Anticipated expiration: 2041-08-20
Also published as: CN113680644A

Abstract

The invention relates to a screening box of a sorting machine, which comprises a screening box and a screening plate arranged at the upper part of the screening box, and is improved in that: a flow guide mechanism is arranged inside the sieve box and below the sieve plate, an air inlet pipe is arranged on the side wall of the sieve box and corresponds to the flow guide mechanism, and outside air supply enters the sieve box through the air inlet pipe, is dispersed and guided by the flow guide mechanism and then blows upwards to the sieve plate; the sieve incasement portion is equipped with the row's of locking material mechanism, the row's of locking material mechanism of locking when the sorter selects separately the material the fine particle material export of sieve case, when discharging the fine particle material export of sieve case is locked and through the vibration of sorter with the fine particle material discharge in order to prevent to get into the external air supply in the sieve case and follow the fine particle material exit and dissipate. The screening box has the advantages of high sorting efficiency and easiness in collecting fine particles, and can improve the overall stability of the sorting machine.

Description

Screening box of sorting machine

Technical Field

The invention relates to the field of sorting machines, in particular to a screening box of a sorting machine.

Background

The sorting machine is widely used for grading and screening scattered materials, and can be generally divided into various forms such as a vibration sorting machine, a roller sorting machine, a relaxation sorting machine, a bar sorting machine, a vibration wind power composite sorting machine and the like according to the difference of the structure and the motion form of a sieve plate. The structure of the existing vibrating wind power composite sorting machine is that a feeding box, a sieve plate, a sieve box, an air inlet box and a vibration driving module are sequentially arranged from top to bottom, the feeding box is connected with the sieve box, the sieve plate is installed in the sieve box, the sieve box is connected with the air inlet box, the vibration driving module is connected with the sieve box and is positioned on two sides of the air inlet box, a heavy particle material outlet and a light particle material outlet are formed in the front end and the rear end of the sieve box, fine particle materials fall to the bottom of the air inlet box after passing through the sieve plate and are discharged through a single-shaft bidirectional screw conveyor and a star-shaped ash discharge valve, and light material materials are discharged from an air induction port on one side of the end part of the feeding box under the action of wind power. The invention discloses a vibration and wind power composite sorting device based on density difference and a using method thereof, and a dry type sorting system and a sorting method of construction waste, as disclosed in Chinese patent application CN109107895A and CN 110694910A. However, the following main problems exist in the prior art:

sorting efficiency is low: external air supply enters the air inlet box through the straight-through air inlet pipe and is blown upwards to the sieve plate, and no corresponding flow dividing and guiding device is arranged in the sieve box, so that the air flow of the external air supply entering from the air inlet box is too concentrated and cannot be effectively and uniformly dispersed to all parts of the sieve plate when the external air supply reaches the sieve plate, partial materials of the sieve plate are accumulated, and the separation efficiency is reduced; meanwhile, as the external air supply enters the screen box through the air inlet box and reaches the screen plate, the existence of the air inlet box causes partial wind loss when the external air supply contacts the screen plate, and the efficiency of sorting the materials needing wind power sorting after the wind pressure is reduced is also reduced;

secondly, the fine particles are not easy to collect: the fine particle materials fall to the bottom of the air inlet box through the soft connecting piece and are discharged from the bottom of the air inlet box, and external air supply entering from the air inlet box can generate a blocking effect on the falling of the fine particle materials, even the fine particle materials are blown to the inner wall of the air inlet box, so that the fine particle materials are not easy to collect; meanwhile, as the box body of the air inlet box is higher, the action time of external air supply on fine particles is prolonged, the falling time of the fine particles is delayed, and the collection difficulty of the fine particles is increased;

the overall stability of the sorting machine is reduced: the existence of the air inlet box increases the overall height of the sorting machine, raises the gravity center of the sorting machine and reduces the overall stability of the sorting machine;

increase the installation and maintenance cost and the civil engineering cost: because sieve incasement portion does not have the gas locking and arranges material mechanism, in order to guarantee the inside atmospheric pressure of sieve incasement portion and discharge fine particle material, need install two-way screw conveyer and star type ash discharge valve in air inlet bottom of the case portion, this makes and the maintenance cost increase of sorter, has also increased the whole height of sorter simultaneously for the civil engineering cost of factory building etc. increases.

Disclosure of Invention

The invention aims to provide a screening box of a sorting machine to solve the defects in the prior art, and the technical problem to be solved by the invention is realized by the following technical scheme.

The utility model provides a screening case of sorter, includes the sieve case and locates the sieve on sieve case upper portion, its improvement part lies in: a flow guide mechanism is arranged inside the sieve box and below the sieve plate, an air inlet pipe is arranged on the side wall of the sieve box and corresponds to the flow guide mechanism, and outside air supply enters the sieve box through the air inlet pipe, is dispersed and guided by the flow guide mechanism and then blows upwards to the sieve plate; the sieve incasement portion is equipped with lock gas and arranges material mechanism, lock gas row material mechanism when the sorter selects separately the material the fine particle material export of sieve case, when discharging the fine particle material export of sieve case is locked and through the vibration of sorter with fine particle material discharge in order to prevent to get into the external air supply in sieve case and follow the fine particle material export and scatter.

Preferably, the air-locking discharge mechanism comprises a turning plate mechanism and a turning plate driving device, the turning plate mechanism comprises a turning plate arranged at the lower part of the screen box, the upper end of the turning plate is fixedly connected with a rotating shaft, the rotating shaft is rotatably connected with the screen box so that the turning plate can turn over in the screen box, and the turning plate driving device is arranged at least one side outside the screen box and is fixedly connected with the rotating shaft; the turning plate driving device comprises an air cylinder fixedly arranged outside the screen box, the end part of an output rod of the air cylinder is connected with a connecting rod in a rotating mode, the other end of the connecting rod is fixedly connected with the end part of the rotating shaft and used for driving the rotating shaft to rotate so that the turning plate can turn up and down, and one side edge part of the turning plate is abutted to the bottom end of the screen box when the turning plate is located at the limit position of turning up and down respectively so as to lock the fine particle material outlet of the screen box.

Preferably, the left side edge and the right side edge of the turning plate are respectively provided with a rubber plate.

Preferably, the left side edge and the right side edge of the turning plate are respectively provided with a fixing plate, and the rubber plate is arranged between the side edge of the turning plate and the fixing plate.

Preferably, a belt seat bearing is fixedly installed on the screen box, the rotating shaft penetrates through the belt seat bearing, and the end part of the rotating shaft is fixedly connected with the connecting rod.

Preferably, the middle part of the upper end of the turning plate is provided with a sleeve fixedly connected with the turning plate, and the rotating shaft penetrates through the sleeve and is fixedly connected with the turning plate.

Preferably, the screen box is internally and fixedly provided with a mounting frame, the end part of the mounting frame is fixedly provided with a plurality of bearing sleeves matched with the rotating shaft, bearings are arranged in the bearing sleeves, and the rotating shaft is arranged in the bearings and is used for rotatably connecting the turning plate with the mounting frame.

Preferably, the flap driving device comprises an air cylinder support fixedly installed outside the screen box, and the air cylinder is installed on the air cylinder support.

Preferably, a Y-shaped support is fixedly mounted at the end part of an output rod of the air cylinder, and the other end of the Y-shaped support is rotatably connected with the connecting rod.

Preferably, the air inlet pipe comprises a connecting flange and an air pipe body which are connected with each other, a first opening is formed in the left side and the right side of the air pipe body, a second opening is formed in the upper side of the air pipe body, a third opening is formed in the lower side of the air pipe body, a pore plate is arranged at the end portion, far away from the connecting flange, of the air pipe body, and a fourth opening is formed in the pore plate.

Preferably, the first opening penetrates through the rear end of the air duct body.

Preferably, the left end and the right end of the pore plate are arc-shaped, and the left end and the right end of the pore plate are positioned in the first openings at the left side and the right side of the air pipe body.

Preferably, the flow guide mechanism comprises a middle partition plate and a flow guide partition plate which are arranged in a crossed manner, the middle partition plate and the flow guide partition plate divide the inside of the sieve box into a plurality of chambers, the air inlet is communicated with the chambers inside the sieve box, and outside air is supplied to the sieve plate after entering the sieve box through the air inlet and is divided and guided by the flow guide mechanism and then blown to the sieve plate.

Preferably, the width of the middle partition board is larger than that of the flow guide partition board, and the flow guide partition board is clamped on the middle partition board.

Preferably, a heavy granular material outlet and a light granular material outlet are formed in the left end and the right end of the upper portion of the sieve box respectively, the height of the heavy granular material outlet is higher than that of the light granular material outlet, and the heavy granular material outlet and the light granular material outlet are both located below the sieve plate.

Preferably, an access window is arranged above the end part of the screen box and is positioned above the screen plate.

Preferably, the lower part of one end of the sieve box, which is provided with the heavy granular material outlet, is provided with a fine granular material outlet, and the fine granular material outlet is positioned below the sieve plate.

Preferably, an observation window is arranged above the fine particle material outlet.

Preferably, the sieve box is internally provided with a support beam.

Preferably, a wear-resistant lining plate is arranged on a bottom plate of the sieve box.

Compared with the prior art, the invention has at least the following beneficial effects:

firstly, the air inlet pipe is arranged at the side part of the box body, and the flow guide mechanism is arranged in the box body, so that external air supply entering from the air inlet pipe is dispersed, guided and finally blown to the sieve plate under the action of the flow guide mechanism, and the external air supply reaching the sieve plate can be uniformly blown to all parts of the sieve plate as much as possible, thereby avoiding the accumulation of materials in local areas of the sieve plate and improving the sorting efficiency;

the air inlet pipe is arranged on the side part of the box body so as to replace an air inlet box in the prior art, so that external air supply directly enters the screen box, and the air inlet pipe is arranged as follows: on one hand, the pressure loss generated when external air supply enters the screen box through the air inlet box is reduced, so that the sorting efficiency is improved; on the other hand, the arrangement of an air inlet box is cancelled, so that the overall height of the sorting machine is reduced, and the overall stability of the sorting machine is improved; on the other hand, the fine particle materials falling through the sieve plate fall onto the bottom plate of the sieve box and are discharged from the fine particle material outlet along with the vibration of the separator, so that the obstruction and delay of external air supply on the collection of the fine particle materials are reduced, and the fine particle materials are convenient to collect;

arrange material mechanism through lock gas for the sorter can last work and can not take place the problem that external air supply dispels from the fine particle material exit in the collection process of fine particle material, thereby replaced two-way screw conveyer and star type unloading valve among the prior art, and then reduced the manufacturing and maintenance cost and the civil engineering cost of sorter, also reduced the whole height of sorter simultaneously, thereby do benefit to the overall stability who improves the sorter.

In summary, the screening box has the advantages of high sorting efficiency and easiness in collection of fine particles, and the overall stability of the sorting machine can be improved.

Drawings

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

FIG. 2 is a schematic front view of the screen box of the present invention;

FIG. 3 is a schematic perspective view of a sieve box according to the present invention;

FIG. 4 is a schematic front view of the air inlet duct of the present invention;

FIG. 5 is a schematic perspective view of an air inlet duct according to the present invention;

FIG. 6 is a schematic structural view of a sieve box and a plate turnover mechanism in the present invention;

FIG. 7 is an enlarged view of portion A of FIG. 6;

FIG. 8 is a schematic structural diagram of a flap mechanism and a flap driving device according to the present invention;

FIG. 9 is a schematic structural view of the flap driving device according to the present invention;

the reference numbers in the drawings are, in order: 10. vibration driving module, 21, sieve box, 211, access panel, 212, air inlet, 213, supporting seat, 214, observation window, 215, supporting beam, 216, intermediate partition board, 217, diversion partition board, 218, sieve box bottom board, 219, heavy particle material outlet, 2110, light particle material outlet, 2111, fine particle material outlet, 22, sieve plate, 23, air inlet pipe, 231, connecting flange, 232, air pipe body, 2321, first opening, 2322, second opening, 2323, third opening, 233, orifice plate, 2331, fourth opening, 24, driving seat, 25, flap mechanism, 251, flap, 252, sleeve, 253, rubber plate, 254, fixing plate, 255, mounting frame, 256, bearing sleeve, 257, rotating shaft, 258, seated bearing, 26, flap driving device, 261, air cylinder, 262, air cylinder bracket, 263, Y-type bracket, 264, connecting rod, 265, pin shaft.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Example 1:

referring to fig. 1 to 9, a screening box of a sorting machine includes a screening box 21 and a screen plate 22 disposed on an upper portion of the screening box 21, and is improved in that: a flow guide mechanism is arranged inside the sieve box 21 and below the sieve plate 22, an air inlet pipe 23 is arranged on the side wall of the sieve box 21 and at a position corresponding to the flow guide mechanism, and outside air supply enters the sieve box 21 through the air inlet pipe 23 and is dispersed and guided by the flow guide mechanism and then blows upwards to the sieve plate 22; the inside gas locking and discharging mechanism that is equipped with of sieve case 21, gas locking and discharging mechanism lock when the sorter selects materials fine particle material export 2111 of sieve case 21, lock when discharging fine particle material export 2111 of sieve case 21 and discharge fine particle material through the vibration of sorter so that prevent that the external air supply that gets into in sieve case 21 from the fine particle material export 2111 escape.

In this embodiment, through setting up air-supply line 23 in the lateral part of box 21 and in the inside water conservancy diversion mechanism that sets up of box 21 for this dispersion, guide and finally blow to sieve 22 under water conservancy diversion mechanism's effect from the external air supply that air-supply line 23 got into, thereby make the external air supply that reaches sieve 22 blow to sieve 22 each department as far as possible evenly, thereby avoided the piling up of sieve 22 local area material, promoted separation efficiency.

In this embodiment, the air inlet pipe 23 is disposed at the side of the box 21 to replace the air inlet box in the prior art, so that the outside air can directly enter the screen box 21. The setting is as follows: on one hand, the pressure loss generated when external air enters the screen box 21 through the air inlet box is reduced, so that the sorting efficiency is improved; on the other hand, the arrangement of an air inlet box is cancelled, so that the overall height of the sorting machine is reduced, and the overall stability of the sorting machine is improved; in still another aspect, the fine particles falling through the sieve plate 22 fall onto the sieve box bottom plate 218 and are then discharged from the fine particle outlet 2111 along with the vibration of the classifier, thereby reducing the obstruction and delay of the external air supply to the collection of the fine particles, and facilitating the collection of the fine particles.

In this embodiment, through locking the gas row material mechanism of arranging for the sorter can continue to work and can not take place the problem that external air supply dispels from fine particle material export 2111 department in the collection process of fine particle material, thereby replaced two-way screw conveyer and star type unloading valve among the prior art, and then reduced the manufacturing and maintenance cost and the civil engineering cost of sorter, also reduced the whole height of sorter simultaneously, thereby do benefit to the overall stability that improves the sorter.

Further, the left end and the right end of the upper part of the sieve box 21 are respectively provided with a heavy particle outlet 219 and a light particle outlet 2110, the height of the heavy particle outlet 219 is higher than that of the light particle outlet 2110, and both the heavy particle outlet 219 and the light particle outlet 2110 are located below the sieve plate 22. In this embodiment, the heavy particle outlet 219 provides an outlet for discharging the heavy particles, and the light particle outlet 2110 provides an outlet for discharging the light particles; under the action of the vibration force, as shown in fig. 2, the vibration force vibrates from the right bottom to the left top direction, the heavy particle material gradually climbs to the heavy particle material outlet 219 along the serrated sieve plate 22 and is discharged through the heavy particle material outlet 219, and the light particle material gradually slides to the light particle material outlet 2110 along the serrated sieve plate 22 and is discharged through the light particle material outlet 2110.

Further, an access window 211 is arranged above the end of the screen box 21, and the access window 211 is located above the screen plate 22.

Furthermore, the upper parts of the end parts of the two sides of the screen box 21 are both provided with an access window 211.

In this embodiment, access panel 211 is used for overhauing sieve 22, can overhaul the sieve of damage at any time through the access panel, because the degree of wear of heavy granule material and light granule material is different, if only set up access panel 211 in one end, inconvenient the maintenance when the other end damages.

Further, a fine particle outlet 2111 is arranged at the lower part of one end of the sieve box 21, which is provided with the heavy particle outlet 219, and the fine particle outlet 2111 is located below the sieve plate 22. In this embodiment, the fine particle outlet 2111 provides an outlet for discharging the fine particles, and the fine particles fall through the sieve holes after being sieved by the sieve plate 22 and fall onto the sieve box bottom plate 218, gradually move toward the fine particle outlet 2111 under the action of the vibration force, and are finally discharged from the fine particle outlet 2111.

Further, a viewing window 214 is provided above the fine particle outlet 2111. In this embodiment, when the air locking and discharging mechanism breaks down or regularly checks the air locking and discharging mechanism, the observation window 214 can be opened to check the state of the air locking and discharging mechanism or maintain the air locking and discharging mechanism, so that the maintenance is simpler, and the maintenance cost of the equipment is reduced.

Further, a support beam 215 is disposed inside the screen box 21.

Further, a reinforcing rib plate is arranged at the position where the supporting beam 215 is connected with the screen box 21.

In this embodiment, the support beam 215 is used to support the screen box 21, so as to increase the bearing strength of the screen box 21; the addition of the reinforcing ribs is beneficial to increasing the connection strength of the support beam 215 and the screen box 21.

Further, a support seat 213 for supporting the sieve box 21 is provided at the bottom of the sieve box 21. In this embodiment, the supporting seat 213 is connected to the vibration driving module 10, and the elastic supporting unit in the vibration driving module 10 is connected to the supporting seat 213 while the vibration driving module 10 drives the screen box 21 to vibrate, so as to provide a vibration stroke for the vibration of the screen box 21 and maintain the connection between the screen box 21 and the vibration driving module 10.

Further, a driving seat 24 is provided below the side portion of the screen box 21. In this embodiment, the driving seat 24 is connected to the vibration driving module 10, and the vibration driving module 10 provides a driving force for vibration separation for the screen box 21.

Further, a wear-resistant lining plate is arranged on the sieve box bottom plate 218 of the sieve box 21.

Furthermore, the wear-resistant lining plate is made of PE materials.

Further, the wear liner is detachably mounted to the bottom plate 218 of the sieve box.

In this embodiment, the wear liner is used to reduce the wear of the sieve box bottom plate 218, thereby prolonging the service life of the sieve box bottom plate 218; the material of wear-resisting welt is the PE material, PE material light in weight can reduce the dead weight of sieve case bottom plate 218 and sieve case 21, and wear-resisting welt can be dismantled with sieve case bottom plate 218 and be connected simultaneously to make things convenient for the change of sieve case bottom plate 218.

Example 2:

on the basis of embodiment 1, referring to fig. 6 to 9, the air-lock discharge mechanism includes a flap mechanism 25 and a flap driving device 26, the flap mechanism 25 includes a flap 251 installed at a lower portion of the screen box 21, an upper end of the flap 251 is fixedly connected with a rotating shaft 257, the rotating shaft 257 is rotatably connected with the screen box 21 so that the flap 251 can be turned inside the screen box 21, and the flap driving device 26 is installed at least on one side outside the screen box 21 and is fixedly connected with the rotating shaft 257; the flap driving device 26 includes an air cylinder 261 fixedly installed outside the screen box 21, an end of an output rod of the air cylinder 261 is rotatably connected with a connecting rod 264, the other end of the connecting rod 264 is fixedly connected with an end of the rotating shaft 257 and is used for driving the rotating shaft 257 to rotate so as to turn the flap 251 upside down, and when the flap 251 is respectively located at the extreme positions of upside down turning, one side edge of the flap is abutted against the bottom end of the screen box 21 so as to lock the fine particle material outlet 2111 of the screen box 21.

In this embodiment, the turning plate 251 is installed at the lower part of the sieve box 21, when the separator does not work, the turning plate 251 is wholly in a horizontal angle under the action of gravity, and the left side edge part and the right side edge part are in a balanced state and are not in contact with the bottom of the sieve box 21; when the separator starts to work, the output end of the air cylinder 261 extends outwards to push the connecting rod 264 to rotate, the connecting rod 264 drives the rotating shaft 257 to rotate anticlockwise, thereby driving the turning plate 251 to rotate anticlockwise, the left side edge part of the turning plate 251 is abutted against the bottom end of the screen box 21, the fine particle material outlet 2111 of the screen box 21 is locked, the fine particle material is screened from the screen plate 22 of the screen box 21 to fall to the bottom of the screen box 21, and gradually moves to the inner side of the left side edge part of the turning plate 251 under the vibration of the screen box 21, after the separator works for a period of time, the output end of the air cylinder 261 contracts, the connecting rod 264 drives the rotating shaft 257 to rotate clockwise, the left side edge of the turning plate 251 is lifted instantly, meanwhile, the right side part of the turning plate 251 abuts against the bottom end of the screen box 21, the fine particle material outlet 2111 of the screen box 21 is still locked, and the fine particle material on the lower part of the turning plate 251 gradually moves to the fine particle material outlet 2111 under the vibration of the screen box 21 and is discharged out of the screen box 21.

The row's of lock gas material mechanism of this embodiment adopts the cylinder drive mode, only needs a small amount of compressed air can drive the cylinder and drive the upset of panel turnover mechanism 25, accomplishes the function that the lock gas was arranged the material, compares in prior art that the structure is simpler, low in manufacturing cost, power consumption also reduces, it is little, reduce the civil engineering cost to occupy the exterior space, panel turnover mechanism 25 is mechanical structure, and the fault rate of itself is low, has reduced the maintenance cost, has simple structure, with low costs, the low beneficial effect of fault rate.

Further, rubber plates 253 are respectively installed on the left side edge and the right side edge of the flap 251.

Further, fixing plates 254 are respectively installed on the left side portion and the right side portion of the flap 251, and the rubber plate 253 is installed between the side portion of the flap 251 and the fixing plates 254.

Further, the fixing plate 254 is fixedly connected with the turning plate 251 through bolts, and the rubber plate 253 is more firmly connected with the turning plate 251 due to the arrangement of the fixing plate 254.

In this embodiment, the rubber plate 253 is arranged to convert the contact between the side edge of the turning plate 251 and the bottom of the screen box 21 from rigid contact to flexible contact, so that on one hand, damage caused by collision between the turning plate 251 and the bottom of the screen box 21 in the turning process can be reduced, and on the other hand, the locking effect of the screen box 21 at the fine particle material outlet 2111 can be enhanced, so that the material sorting effect is better.

Further, the flap 251 is shaped like , and includes a transverse portion in the middle, and left and right side portions respectively located at the left and right sides.

Furthermore, the middle part of the transverse part is bent upwards, and obtuse angles are formed between the left side part and the transverse part and between the right side part and the transverse part.

Further, a bearing 258 with a seat is fixedly installed on the screen box 21, the rotating shaft 257 penetrates through the bearing 258 with a seat, and an end of the rotating shaft 257 is fixedly connected with the connecting rod 264. In this embodiment, the rotating shaft 257 is connected to the sieve box 21 by being engaged with the bearing 258.

Further, a sleeve 252 fixedly connected with the upper middle part of the turning plate 251 is arranged in the middle of the upper end of the turning plate 251, and the rotating shaft 257 passes through the sleeve 252 and is fixedly connected with the turning plate 251.

Further, the sleeve 252 is welded to the flap 251.

Further, a mounting rack 255 is fixedly mounted in the sieve box 21, a plurality of bearing sleeves 256 matched with the rotating shaft 257 are fixedly mounted at the end of the mounting rack 255, a bearing is mounted in each bearing sleeve 256, and the rotating shaft 257 is mounted in the bearing to rotatably connect the turning plate 251 with the mounting rack 255.

Further, one end of the mounting bracket 255 is welded and fixed to the inner wall of the screen box 4.

Further, the bearing sleeve 256 and the mounting bracket 255 are welded and fixed.

Further, referring to fig. 9, the flap driving device 26 includes a cylinder bracket 262 fixedly installed outside the screen box 21, and the cylinder 261 is installed on the cylinder bracket 262.

Further, the cylinder holder 262 is welded to the outside of the screen box 21.

Further, a Y-shaped bracket 263 is fixedly mounted at an end of an output rod of the cylinder 261, and the other end of the Y-shaped bracket 263 is rotatably connected with the connecting rod 264.

Further, an inner threaded portion is arranged at one end of the Y-shaped support 263, an outer threaded portion is arranged at the output end of the air cylinder 261, and the Y-shaped support 263 is fixedly connected with the output end of the air cylinder 261 through the matching connection of the inner threaded portion and the outer threaded portion.

Furthermore, one end of the Y-shaped support 263 is provided with a pin 265, and the connecting rod 264 passes through the pin 265 and is rotatably connected with the Y-shaped support 263.

Further, the number of the flap driving devices 26 is two, and the two flap driving devices 26 are symmetrically installed outside the screen box 21 and connected to both ends of the rotating shaft 257. In this embodiment, the two sides of the flap mechanism 25 are both provided with the flap driving device 26, so that the response sensitivity of the flap mechanism 25 is higher, the movement is more stable, and the driving effect is better.

Example 3:

on the basis of the embodiment 1 or 2, referring to fig. 4 and 5, the air inlet duct 23 includes a connecting flange 1 and an air duct body 232 that are connected to each other, a first opening 2321 is opened on the left and right sides of the air duct body 232, a second opening 2322 is opened on the upper side, a third opening 2323 is opened on the lower side, a pore plate 233 is disposed on an end portion of the air duct body 232 away from the connecting flange 1, and a fourth opening 2331 is opened on the pore plate 233.

In this embodiment, the first opening 2321 at the left side and the right side of the air duct body 232 is used for guiding the split external air supply to the two sides, the second opening 2322 is used for guiding the split external air supply upwards, the fourth opening 2331 is used for guiding the split external air supply backwards, and the third opening 2323 is used for discharging the material entering the air duct body 232; the connecting flange 231 is used for connecting with an external air inlet pipe.

In this embodiment, after entering the air duct body 232 through the connecting flange 1, the external air supply is split from the first opening 2321 on both sides of the air duct body 232 to both sides, part of the external air supply is split upward from the second opening 2322, and the external air supply reaching the orifice plate 233 is split rearward through the fourth opening 2331; the material falling into the air duct body 232 passes through the third opening 2323 and then is discharged from the air duct body 232. In this embodiment, by providing the orifice plate 233 and the fourth orifice 2331 and providing the upper, left, and right openings, the external air supply directly entering the sieve box 21 is guided to be branched to the left and right sides and the upper side, so that the external air supply is guided to be branched immediately before entering the sieve box 21, and further the external air supply turning and blowing upward in the sieve box 21 is made to be uniformly dispersed and blown to the sieve plate in a uniformly dispersed manner, thereby improving the effect of sorting the materials by wind power.

Furthermore, a plurality of connecting holes for connecting with the air inlet pipe are formed in the connecting flange 231. In this embodiment, the connection flange 231 can be connected to the air inlet pipe such as a flexible connector by providing the connection hole.

Further, the connecting flange 231 is connected with the air duct body 232 in a welding manner. In this embodiment, welding connection is adopted, and the connecting flange 231 and the air duct body 232 can be processed in a split manner, so that the processing difficulty is reduced, and the yield is improved.

Further, the air duct body 232 and the orifice plate 233 are integrally formed or separately formed. Furthermore, the duct body 232 and the orifice plate 233 are formed separately, and the orifice plate 233 is welded to the rear end of the duct body 232. In this embodiment, the air duct body 232 and the orifice plate 233, which are integrally formed, can improve the processing precision; the split molding is favorable for reducing the processing difficulty and improving the processing yield.

Further, the first openings 2321 formed at the left and right sides of the air duct body 232 are symmetrically arranged. In this embodiment, the two first openings 2321 symmetrically disposed can ensure that the air volume and the wind power of the air duct body 232 shunted to both sides are equal, which is beneficial to improving the uniform dispersion degree of the external air supply.

Further, the radian of the circular arc on the inner diameter circle of the air duct body 232 at the first opening 2321 is 40 to 140 °.

Further, the length of the first opening 2321 is 1/3-3/4 of the length of the air duct body 232.

In this embodiment, the radian and the length of the first opening 2321 are set, so as to ensure the size of the first opening 2321, and thus ensure the ventilation amount of the first opening 2321.

Further, the number of the second openings 2322 is plural, and the plural second openings 2322 are uniformly spaced.

Further, the number of the second openings 2322 is five, and the five second openings 2322 are uniformly arranged from the position right above the air duct body 232 to two sides.

Further, the length of the second opening 2322 is not greater than the length of the first opening 2321.

In this embodiment, for the arrangement of the second opening 2322, a small amount of external air supply can be diverted upwards from the air duct body 232, so that the pressure of the external air supply diverted upwards is as equivalent as possible to the pressure of the external air supply diverted through the first opening 2321 and the fourth opening 2331, thereby ensuring that the pressure of the external air supply diverted from each position of the air duct body 232 is as equivalent as possible.

Further, the number of the third openings 2323 is one, and the third openings 2323 are disposed right below the air duct body 232.

Further, the length of the third opening 2323 is not greater than the length of the first opening 2321.

In this embodiment, the reason why the third opening 2323 is provided is that, on one hand, the third opening 2323 is mainly used for discharging the material entering the duct body 232, and on the other hand, the downward overflow of the external air supply from the third opening 2323 is reduced.

Further, the number of the fourth apertures 2331 is multiple, and the fourth apertures 2331 are uniformly distributed on the aperture plate 233.

Further, the second opening 2322 is a waist-shaped hole, a square-shaped hole, a round hole or a long-strip-shaped hole, the third opening 2323 is a waist-shaped hole, a square-shaped hole, a round hole or a long-strip-shaped hole, and the fourth opening 2331 is a round hole or a square-shaped hole; furthermore, the second opening 2322 and the third opening 2323 are both kidney-shaped holes, the fourth opening 2331 is a round hole, and the first opening 2321 is a slot-shaped hole.

Further, the first opening 2321 penetrates through to the rear end of the duct body 232. In this embodiment, the first opening 2321 is penetrated to the rear end of the duct body 232, so that the external air supply branched by the first opening 2321 and the orifice plate 233 flows to the outside of the duct body 232 from the same position, and the pressure of the external air supply branched from each position of the duct body 232 is as high as possible.

Further, the left end and the right end of the orifice plate 233 are arc-shaped, and the left end and the right end of the orifice plate 233 are located in the first openings 2321 on the left side and the right side of the air duct body 232.

Further, the number of the fourth holes 2331 is plural, and the plural fourth holes 2331 are uniformly distributed on the orifice plate 233.

In this embodiment, the evenly distributed fourth holes 2331 can effectively disperse the external air supply branched from the rear end of the air duct body 232.

Example 4:

on the basis of any of the foregoing embodiments, as shown in fig. 2 and 3, the flow guide mechanism includes a middle partition plate 216 and a flow guide partition plate 217, which are arranged in a cross manner, the middle partition plate 216 and the flow guide partition plate 217 divide the inside of the screen box 21 into a plurality of chambers, the air inlet 212 is communicated with the chambers inside the screen box 21, and outside air enters the screen box 21 through the air inlet 212, is divided by the flow guide mechanism, is guided by the flow guide mechanism, and is blown to the screen plate 22.

Further, the width of the middle partition plate 216 is greater than the width of the baffle plate 217, and the baffle plate 217 is clamped on the middle partition plate 216.

Further, the intermediate partition plate 216, which is located in the middle of the screen box 21 and parallel to the side wall of the screen box 21, of the intermediate partition plates 216 abuts against the screen box bottom plate 218 of the screen box 21.

In this embodiment, the intermediate partition 216 is used for dispersing the airflow, the baffle 217 is used for guiding the airflow to the sieve plate 22 through the height difference with the intermediate partition 216, and the sieve box bottom plate 218 is used for receiving the fine particle materials.

It should be noted that the above detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise. Furthermore, it will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in other sequences than those illustrated or otherwise described herein.

Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not explicitly listed or inherent to such process, method, article, or apparatus.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may also be oriented in other different ways, such as by rotating it 90 degrees or at other orientations, and the spatially relative descriptors used herein interpreted accordingly.

In the foregoing detailed description, reference is made to the accompanying drawings, which form a part hereof. In the drawings, like numerals typically identify like components, unless context dictates otherwise. The illustrated embodiments described in the detailed description, drawings, and claims are not meant to be limiting. Other embodiments may be utilized, and other changes may be made, without departing from the spirit or scope of the subject matter presented here.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. 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 utility model provides a screening case of sorter, includes sieve case (21) and sieve (22) of locating sieve case (21) upper portion, its characterized in that: a flow guide mechanism is arranged inside the screen box (21) and below the screen plate (22), an air inlet pipe (23) is arranged on the side wall of the screen box (21) and at a position corresponding to the flow guide mechanism, and outside air enters the screen box (21) through the air inlet pipe (23), is dispersed and guided by the flow guide mechanism and then blows upwards to the screen plate (22); the inside of the sieve box (21) is provided with an air locking and discharging mechanism, the air locking and discharging mechanism locks a fine particle material outlet (2111) of the sieve box (21) when the separator separates materials, locks the fine particle material outlet (2111) of the sieve box (21) when discharging fine particle materials and discharges the fine particle materials through the vibration of the separator so as to prevent external air supply entering the sieve box (21) from dissipating from the fine particle material outlet (2111); the air-locking discharging mechanism comprises a plate turning mechanism (25) and a plate turning driving device (26), the plate turning mechanism (25) comprises a plate turning (251) arranged at the lower part of the screen box (21), the upper end of the plate turning (251) is fixedly connected with a rotating shaft (257), the rotating shaft (257) is rotatably connected with the screen box (21) so that the plate turning (251) can turn over in the screen box (21), and the plate turning driving device (26) is arranged on at least one side of the outer part of the screen box (21) and is fixedly connected with the rotating shaft (257); the flap driving device (26) comprises an air cylinder (261) fixedly installed outside the screen box (21), the end of an output rod of the air cylinder (261) is rotatably connected with a connecting rod (264), the other end of the connecting rod (264) is fixedly connected with the end of the rotating shaft (257) and is used for driving the rotating shaft (257) to rotate so as to enable the flap (251) to be turned over up and down, and one side edge part of the flap (251) is abutted to the bottom end of the screen box (21) when the flap (251) is respectively located at the limit position of turning over up and down so as to lock the fine particle material outlet (2111) of the screen box (21).

2. The screen box of a sorting machine according to claim 1, characterized in that: rubber plates (253) are respectively arranged on the left side edge part and the right side edge part of the turning plate (251).

3. The screen box of a sorting machine according to claim 2, characterized in that: fixing plates (254) are respectively installed on the left side edge and the right side edge of the turning plate (251), and the rubber plate (253) is installed between the side edge of the turning plate (251) and the fixing plates (254).

4. The screen box of a sorting machine according to claim 1, characterized in that: the sieve case (21) is fixedly provided with a bearing with a seat (258), the rotating shaft (257) penetrates through the bearing with a seat (258), and the end part of the rotating shaft (257) is fixedly connected with the connecting rod (264).

5. The screen box of a sorting machine according to claim 1, characterized in that: the middle part of the upper end of the turning plate (251) is provided with a sleeve (252) fixedly connected with the turning plate, and the rotating shaft (257) penetrates through the sleeve (252) and is fixedly connected with the turning plate (251).

6. The screen box of a sorting machine according to claim 1, characterized in that: the utility model discloses a screen box, including sieve case (21), fixed mounting has in the sieve case (21) mounting bracket (255), the tip fixed mounting of mounting bracket (255) have a plurality ofly with pivot (257) assorted bearing housing (256), install the bearing in bearing housing (256), pivot (257) install in the bearing will turn over board (251) with mounting bracket (255) are rotated and are connected.

7. The screen box of a sorting machine according to claim 1, characterized in that: the flap driving device (26) comprises a cylinder support (262) fixedly arranged outside the screen box (21), and the cylinder (261) is arranged on the cylinder support (262).

8. The screen box of a sorting machine according to claim 7, characterized in that: the other end of the Y-shaped support (263) is rotatably connected with the connecting rod (264).

9. The screen box of a sorting machine according to claim 1, characterized in that: the air inlet pipe (23) comprises a connecting flange (1) and an air pipe body (232) which are connected with each other, a first opening hole (2321) is formed in the left side and the right side of the air pipe body (232), a second opening hole (2322) is formed in the upper side of the air pipe body, a third opening hole (2323) is formed in the lower side of the air pipe body, a pore plate (233) is arranged on the end portion, away from the connecting flange (1), of the air pipe body (232), and a fourth opening hole (2331) is formed in the pore plate (233).

10. The screen box of a sorting machine according to claim 9, characterized in that: the first opening hole (2321) penetrates through the rear end of the air duct body (232).

11. The screen box of a sorting machine according to claim 9, characterized in that: the left end and the right end of the pore plate (233) are arc-shaped, and the left end and the right end of the pore plate (233) are positioned in the first openings (2321) on the left side and the right side of the air pipe body (232).

12. The screen box of a sorting machine according to claim 1, characterized in that: the flow guide mechanism comprises a middle partition plate (216) and a flow guide partition plate (217) which are arranged in a crossed mode, the middle partition plate (216) and the flow guide partition plate (217) divide the interior of the screen box (21) into a plurality of chambers, an air inlet (212) is communicated with the chambers inside the screen box (21), and outside air supply enters the screen box (21) through the air inlet (212) and then is divided and guided by the flow guide mechanism to blow towards the screen plate (22).

13. The screen box of a sorting machine according to claim 12, characterized in that: the width of the middle partition plate (216) is larger than that of the flow guide partition plate (217), and the flow guide partition plate (217) is clamped on the middle partition plate (216).

14. The screen box of a sorting machine according to claim 1, characterized in that: the left end and the right end of the upper part of the sieve box (21) are respectively provided with a heavy granular material outlet (219) and a light granular material outlet (2110), the height of the heavy granular material outlet (219) is higher than that of the light granular material outlet (2110), and the heavy granular material outlet (219) and the light granular material outlet (2110) are both positioned below the sieve plate (22).

15. The screen box of a sorting machine according to claim 1, characterized in that: an access panel (211) is arranged above the end part of the screen box (21), and the access panel (211) is positioned above the screen plate (22).

16. The screen box of a classifier as claimed in claim 14, wherein: the lower part of the one end of the sieve box (21) provided with the heavy granular material outlet (219) is provided with a fine granular material outlet (2111), and the fine granular material outlet (2111) is positioned below the sieve plate (22).

17. The screen box of a classifier as claimed in claim 16, wherein: an observation window (214) is arranged above the fine particle material outlet (2111).

18. The screen box of a sorting machine according to claim 1, characterized in that: and a support beam (215) is arranged in the screen box (21).

19. A screen box of a sorting machine according to any one of claims 1 to 18, characterised in that: and a wear-resistant lining plate is arranged on a sieve box bottom plate (218) of the sieve box (21).