CN113955385A - Air cushion belt conveyor - Google Patents
Air cushion belt conveyor Download PDFInfo
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- CN113955385A CN113955385A CN202010706423.0A CN202010706423A CN113955385A CN 113955385 A CN113955385 A CN 113955385A CN 202010706423 A CN202010706423 A CN 202010706423A CN 113955385 A CN113955385 A CN 113955385A
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- 239000000428 dust Substances 0.000 claims abstract description 73
- 238000007789 sealing Methods 0.000 claims abstract description 47
- 239000000463 material Substances 0.000 claims abstract description 12
- 238000004891 communication Methods 0.000 claims description 6
- 230000008093 supporting effect Effects 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims 1
- 238000004062 sedimentation Methods 0.000 description 17
- 210000001503 joint Anatomy 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 239000004744 fabric Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 239000000565 sealant Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
- B65G15/60—Arrangements for supporting or guiding belts, e.g. by fluid jets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
- B65G69/18—Preventing escape of dust
- B65G69/181—Preventing escape of dust by means of sealed systems
- B65G69/182—Preventing escape of dust by means of sealed systems with aspiration means
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- Structure Of Belt Conveyors (AREA)
Abstract
The invention relates to an air cushion belt conveyor which comprises an air cushion conveying main body, a driving roller, a driven roller, a conveying belt, a machine head sealing shell and a machine tail sealing shell, wherein orifices on an upper disc groove are only arranged in a single row in the middle of the upper disc groove, the conveyor also comprises an air supply fan, the air supply fan supplies pressurized air to an upper air chamber, the air supply fan is communicated with a conveying layer chamber through an air suction channel, and air is sucked when the conveying belt conveys materials so that negative pressure chambers are formed in the conveying layer chamber, the interior of the machine head sealing shell and the interior of the machine tail sealing shell. To last dish groove, only arrange the orifice in the middle of last dish groove, effectively reduce required air supply volume, utilize the passageway suction transport layer cavity that induced drafts for transport layer cavity, the inside negative pressure cavity that forms of sealed casing of aircraft nose and the sealed casing of tail can effectively avoid the dust to outwards escape, avoid causing the influence to external environment.
Description
Technical Field
The invention relates to an air cushion belt conveyor.
Background
The air cushion belt conveyor replaces a carrier roller of the carrier roller belt conveyor with an air chamber disk groove with holes, when an air source provides air with certain pressure and flow into the air chamber, the air in the air chamber escapes through small holes in the disk groove, a layer of air film with certain pressure is formed between the conveying belt and the disk groove, the corresponding conveying belt is supported, continuous air cushion support is formed, the running resistance is small, and the energy consumption is low.
The structure of the air cushion belt conveyor commonly used at present is due to the problem of a theoretical model, the air chamber structure is mostly like the air chamber of the conveyor disclosed in the Chinese invention patent application with the application publication number of CN105836375A, a plurality of rows of air holes are distributed at intervals in the width direction of the disc groove, the air holes are positioned in the middle and are also positioned at the edge of the disc groove, the air blower supplies air to the air chamber, and the air flow escaping from the air holes of the disc groove forms an air cushion between the disc groove and the conveyor belt. The air cushion machine has the advantages that the design pressure is high, the air consumption is high, the air flow escaping through the throttling holes of the disc groove is also relatively high, the high requirement is provided for the corresponding dust removal system, the energy consumption is increased, the dust removal system is required to be stopped frequently to be cleaned, and the normal work of the conveyor is influenced.
Disclosure of Invention
The invention aims to provide an air cushion belt conveyor to solve the technical problems that in the prior art, multiple rows of air holes distributed at intervals are arranged in the middle and the edge of a disc groove, so that the air displacement of an air chamber is large and the dust volume is large.
In order to achieve the purpose, the technical scheme of the air cushion belt conveyor provided by the invention is as follows: an air cushion belt conveyor comprising:
the air cushion conveying main body extends along the front-back direction and comprises an upper disc groove which is arranged in a downward protruding mode, the upper disc groove separates a conveying layer cavity and an upper air chamber in the air cushion conveying main body, the upper air chamber is located below the conveying layer cavity, and a throttling hole is formed in the upper disc groove and is used for communicating the upper air chamber with the conveying layer cavity;
the machine head sealing shell and the machine tail sealing shell are correspondingly and hermetically connected to the front end and the rear end of the air cushion conveying main body, and a discharge hole is formed in the bottom of the machine head sealing shell;
the driving roller and the driven roller are correspondingly arranged in the machine head sealing shell and the machine tail sealing shell;
the conveying belt is wound on the driving roller and the driven roller and correspondingly penetrates through the conveying layer chamber;
the feeding hole is arranged on the air cushion conveying main body and used for feeding materials to the conveying layer cavity;
the air supply fan is provided with an air outlet, the air outlet is communicated with the upper air chamber through an air supply pipeline so as to supply air with pressure to the upper air chamber, and the air with pressure in the upper air chamber enters the conveying layer cavity through the throttling hole so as to form an air film between the conveying belt and the upper disc groove and be used for supporting the conveying belt and materials borne by the conveying belt;
the throttling holes in the upper disc groove are positioned in the middle of the upper disc groove, are only arranged in a single row and are sequentially arranged at intervals from front to back along the length direction of the air cushion conveying main body;
the air inlet of the air supply fan is communicated with the conveying layer cavity through an air suction channel, and air is sucked by the conveying belt during material transportation so that negative pressure cavities are formed in the conveying layer cavity, the inside of the machine head sealing shell and the inside of the machine tail sealing shell.
The beneficial effects are that: in the air cushion belt conveyor provided by the invention, for the upper disc groove, only the single-row throttling hole is arranged in the middle of the upper disc groove, so that the required air supply amount is effectively reduced, the air amount diffused into the conveying layer cavity through two sides of the conveying belt is less, and a lot of dust cannot be caused in the conveying layer cavity. And moreover, the air supply fan is communicated with the upper air chamber and the conveying layer chamber, and air sucked from the conveying layer chamber is pressurized and then directly introduced into the upper air chamber to form self circulation, so that the small air supply amount is conveniently ensured, and meanwhile, the small air suction amount is realized.
The air suction channel comprises an air suction pipeline, the top of the air cushion conveying main body is fixedly provided with a dust remover, the dust remover is provided with a lower air suction opening and an upper air suction opening, the lower air suction opening is communicated with the conveying layer cavity, and the upper air suction opening is communicated with an air inlet of the air supply fan through the air suction pipeline so as to realize the air supply opening of the air supply fan and the conveying layer cavity.
The beneficial effects are that: the air suction pipeline is communicated with the conveying layer cavity through the dust remover, and when the air supply fan sucks air through the air suction pipeline, gas in the conveying layer cavity is filtered by the dust remover and then enters the air supply fan, so that the air suction function can be realized, and effective dust removal can also be realized.
The dust remover comprises a dust remover shell, the dust remover shell is fixedly installed at the top of the air cushion conveying main body, the bottom of the dust remover shell is provided with the lower air suction opening, the upper portion of the dust remover shell is provided with the upper air discharge opening, and a dust removing structure is arranged in the dust remover shell.
Has the advantages that: the bottom of the dust remover shell is provided with the lower air suction opening, the upper air suction opening is arranged, the dust remover shell is used as an air duct, communication is achieved, and the whole structure is simple.
The dust remover shell comprises a sedimentation shell, the bottom of the sedimentation shell is fixedly arranged at the top of the air cushion conveying main body, the bottom opening of the sedimentation shell is communicated with the conveying layer cavity to form the lower air suction port, the sedimentation shell is provided with a deformation sedimentation section extending along the vertical direction, and the cross section size of the deformation sedimentation section is gradually reduced from bottom to top.
The beneficial effects are that: set up on subsiding the casing and warp the section of subsiding, big end down on its cross sectional dimension, when gaseous from the lower part gets into, great lower part can form once and subside the effect, simultaneously, also helps the inside compressed air blowback filtration of dust remover to shake the secondary of falling the dust and subsides, can effectively avoid filtration's jam.
The dust remover and the air supply fan are distributed at intervals in the front-back direction.
The beneficial effects are that: the dust remover and the air supply fan are distributed in the front and back, so that the problems of overhigh height and overlong air path in the vertical arrangement are avoided.
The conveying belt conveying device is characterized in that a lower disc groove is arranged in the air cushion conveying main body, a return layer cavity and a lower air chamber are separated from the air cushion conveying main body by the lower disc groove and used for the conveying belt to pass through in a return way, single-row orifices distributed in the front-back direction are arranged in the middle of the lower disc groove, the single-row orifices in the lower disc groove are communicated with the lower air chamber and the return layer cavity, two ends of the return layer cavity are communicated with the conveying layer cavity through a machine head sealing shell and a machine tail sealing shell, and the upper air chamber and the lower air chamber are communicated through a lower air chamber communicated air pipe so that part of the interior of the upper air chamber can be pressurized to enter the lower air chamber and enter the return layer cavity through the single-row orifices in the lower disc groove to support the conveying belt.
Drawings
Fig. 1 is a schematic structural view of an air cushion belt conveyor 1 according to an embodiment of the present invention;
FIG. 2 is a schematic view of the gas circulation in the air cushion belt conveyor of FIG. 1 (the direction of gas flow indicated by the arrows in the figure);
FIG. 3 is a schematic view of the assembly structure of the dust catcher and the air cushion conveying main body in FIG. 1;
FIG. 4 is a top view of FIG. 3;
fig. 5 is a schematic structural diagram of an air cushion belt conveyor in embodiment 3 of the present invention.
Description of reference numerals:
1-air supply fan, 2-air suction pipeline, 3-dust remover, 30-sedimentation shell, 31-dust removal structure, 4-conveying layer cavity, 5-upper air chamber, 6-lower air chamber connected with ventilation pipe, 7-flow regulating valve, 8-lower air chamber, 9-return layer cavity, 10-air supply pipeline, 11-feed hopper, 12-discharge port, 13-driven roller, 14-driving roller, 16-conveying belt, 17-upper disc groove, 18-lower disc groove, 100-air cushion conveying main body, 101-middle section, 200-machine head sealing shell, 300-machine tail sealing shell, 20-lower return roller, 40-compressed air pipeline and 41-dust removal cloth bag.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, elements recited by the phrase "comprising an … …" do not exclude the inclusion of such elements in processes or methods.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.
In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or a non-detachable connection. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.
The present invention will be described in further detail with reference to examples.
The specific embodiment 1 of the air cushion belt conveyor provided by the invention is as follows:
as shown in fig. 1 to 4, the air cushion belt conveyor in this embodiment mainly includes an air cushion conveying main body 100, a head sealing housing 200, and a tail sealing housing 300, a driving roller 14 and a driven roller 13 are correspondingly disposed at front and rear ends of the air cushion conveying main body 100, wherein the driving roller 14 is driven by a power device to rotate, the power device specifically includes a motor and a speed reducer, a conveying belt 16 is wound on the two rollers, the two rollers are correspondingly matched to drive the conveying belt to rotate back and forth to convey materials, a feed opening 12 is disposed at the head sealing housing 200, a feed hopper 11 is disposed at an upper portion of the rear end of the air cushion conveying main body 100 close to the tail sealing housing 300, the feed hopper 11 is used for receiving materials sent by a corresponding feeding device, the materials entering from the feed hopper 11 fall on the conveying belt 16, are transferred to the head by the conveying belt 16, and are discharged through the feed opening 12.
The air cushion conveying main body 100 is a sealed box structure as a whole, and comprises a conveying layer chamber 4, an upper air chamber 5, a return layer chamber 9 and a lower air chamber 8 which are arranged from top to bottom, wherein the upper conveying belt part of the conveying belt 16 positioned between two rollers enters the conveying layer chamber 4, the upper air chamber 5 is supplied with compressed air to suspend and support the upper conveying belt part and materials thereon, the lower conveying belt part of the conveying belt 16 positioned between the two rollers is positioned in the return layer chamber 9, and the lower air chamber 8 supplies air to suspend and support the lower conveying belt part.
In fact, the air cushion conveying body 100 here includes a plurality of middle joints 101 that are hermetically connected, each middle joint 101 is a box structure, and includes a split conveying layer chamber, a split upper air chamber, a split return layer chamber, and a split lower air chamber that are sequentially arranged from top to bottom, after each middle joint is sequentially hermetically connected, all the split conveying layer chambers penetrate through the conveying layer chamber that forms the air cushion conveying body, all the split upper air chambers penetrate through the upper air chamber that forms the air cushion conveying body, all the split return layer chambers penetrate through the return layer chamber that forms the air cushion conveying body, and all the split lower air chambers correspondingly penetrate through the lower air chamber that forms the air cushion conveying body.
Specifically, the specific components of the middle section mainly include a cover plate, an upper tray groove, a left side Z-shaped plate, a right side Z-shaped plate, a left side plate, a right side plate, a lower tray groove and a lower air chamber folded plate, wherein the cover plate and the upper tray groove enclose a split conveying layer chamber, and the cover plate is detachably fixed on the upper tray groove, so that the middle section 101 can be maintained conveniently. The split upper air chambers of the middle sections are formed by enclosing an upper disc groove, a left Z-shaped plate and a right Z-shaped plate, the split upper air chambers are also box-type cavities, and after all the middle sections are connected, sealing plates are additionally arranged at the corresponding outer ends of the middle sections at the end parts to seal the corresponding upper air chambers so that the upper air chambers 16 become a closed cavity.
The left Z-shaped plate and the right Z-shaped plate comprise upper transverse folding edges, middle inclined folding edges and lower transverse folding edges, during assembly, the relative inner sides of the two lower transverse folding edges of the two Z-shaped plates are connected in a welding mode, the two upper transverse folding edges are fixedly connected with the upper wall groove, the middle inclined folding edges of the two Z-shaped plates are arranged in an inwards inclined mode from bottom to top, and the size of the left direction and the size of the right direction of the upper air chamber are sequentially reduced from bottom to top. In addition, a single row of orifices are distributed at the lowest part of the upper disk groove 17 along the front-back direction, and the orifices are used for discharging the air under pressure in the upper air chamber.
The split return layer cavity of each middle section is formed by enclosing a lower disc groove 18, two side plates and two Z-shaped plates, the lower disc groove forms a bottom wall, the left side plate and the right side plate form a side wall, the lower parts of the two Z-shaped plates are transversely folded to form a top wall, the split return layer cavity is better sealed integrally, and the return layer cavity of the air cushion conveying main body is only provided with a front end opening and a rear end opening and is communicated with the machine head sealing shell and the machine tail sealing shell so as to be used for conveying belts to pass through. If sealing plates are added at two ends of the cavity of the return layer, the whole cavity is of a completely closed structure, and certainly, the two ends are not closed in actual use and are used for conveying belts to enter and exit. In fact, the dimension of the split return layer chamber in the left-right direction is smaller than that of the upper air chamber, so as to accommodate the returned conveyor belt part, and at the same time, a box-type cavity is formed.
The split lower air chamber of the middle section is formed by enclosing a lower disc groove and a lower air chamber folded plate to form a closed chamber, and the lowest part of the lower disc groove is provided with a single row of throttling holes distributed along the front-back direction.
In this embodiment, the intermediate sections are rigidly connected, and specifically, in this embodiment, flanges are provided at front and rear ends of each intermediate section for fixedly connecting adjacent intermediate sections by the flanges and bolts, so that the entire air cushion conveying body is integrally formed into a rigid body to minimize the amount of flexible deformation. Of course, in other embodiments, other hard connection methods, such as screw connection, riveting, welding, etc., may be used for each intermediate link.
In fact, the gap between the flanges of the two middle sections butted with each other is sealed by the sealant. During assembly, the two adjacent middle sections are connected by the flange and the bolt at the butt joint, before butt joint, sealant is uniformly coated on the butt joint surface of the flange, specifically RTV room temperature vulcanized silicone rubber is adopted, the sealant is extruded after the bolt at the flange is fastened, and the sealant which is not extruded only seals the butt joint surface caused by the unevenness of the butt joint surface, so that an effective sealing effect is formed.
Since the upper disk groove serves both to form the transport layer chamber and the upper air chamber and the lower disk groove serves both to form the return layer chamber and the lower air chamber, then for the entire air cushion conveyor body it can be seen that the upper disk groove separates the transport layer chamber and the upper air chamber within the air cushion conveyor body and the lower disk groove separates the return layer chamber and the lower air chamber. Moreover, the single-row orifice on the upper disc groove 17 is communicated with the conveying layer chamber 4 and the upper air chamber 5, the single-row orifice on the lower disc groove 18 is communicated with the return layer chamber 9 and the lower air chamber 8, air with pressure in the upper air chamber enters the conveying layer chamber through the single-row orifice on the upper disc groove, an air film is formed below the conveying belt, the conveying belt is correspondingly supported, and the air film enters the conveying layer chamber from two sides of the conveying belt in the width direction. The pressurized air in the lower air chamber enters the conveying layer cavity through the single-row throttling holes in the lower disc groove, an air film is formed below the conveying belt, the corresponding supporting effect is achieved on the returning conveying belt, and the pressurized air escapes from the two sides of the conveying belt in the width direction and enters the returning layer cavity.
The machine head sealing shell 200 and the machine tail sealing shell 300 are installed at two ends of the air cushion belt conveyor, the two sealing shells are correspondingly and hermetically connected to the front end and the rear end of the air cushion conveying main body, the rear end of the machine head sealing shell 200 is in sealing connection with a corresponding middle section front end flange, a blanking channel extending downwards is arranged at the front end of the machine head sealing shell, a blanking port 12 is formed at the lower end of the blanking channel, a corresponding driving roller 14 is correspondingly arranged in the machine head sealing shell 200, a driving roller rotating power device is further arranged corresponding to the driving roller, the machine head sealing shell 200, the driving roller 14 and the corresponding power device are all the prior art, and the description is omitted. Similarly, the rear seal housing 300 is then sealingly connected to the rear end flange of the corresponding intermediate section, and the driven drum 13 is located in the rear seal housing 300, where the driven drum provides mainly redirection. In fact, the head and tail seal housings 200 and 300 are in communication with the transport and return layer chambers, respectively, so that gas can flow in both chambers.
In this embodiment, the air supply fan 1 supplies pressurized air to the upper air chamber 5 and the lower air chamber 8, specifically, the air supply fan 1 is directly communicated with the upper air chamber 5 through an air supply pipeline 10, the upper air chamber 5 is communicated with the lower air chamber 8 through a lower air chamber communication air pipe 6, the air supply fan 1 directly supplies pressurized air to the upper air chamber 5, and partial pressurized air in the upper air chamber 5 enters the lower air chamber 8 through the lower air chamber communication air pipe 6. The lower air chamber communicating air pipe 6 is positioned outside the air cushion conveying main body, and a flow regulating valve 7 is arranged on the lower air chamber communicating air pipe, so that the installation, the overhaul and the maintenance are more convenient. And a plurality of lower air chambers are sequentially distributed at intervals along the front-back direction to be communicated with the air pipes 6, so that the uniformity of air supply of the lower air chambers 8 can be ensured.
One part of the air with pressure in the upper air chamber 5 flows to the lower air chamber 8 through the lower air chamber communicating air pipe 6 to keep the lower air chamber 8 at positive pressure, and the other part of the air enters the conveying layer chamber through the single-row throttling hole on the upper disc groove, and an air film is formed between the conveying belt 16 and the upper disc groove 17 to support the belt and can escape from the two sides of the conveying belt in the width direction to enter the conveying layer chamber 4. And the pressurized air in the lower air chamber 8 enters the return layer chamber 9 through the single-row throttling holes on the lower disc groove, so that the return layer chamber 9 forms positive pressure, and an air film is formed between the conveying belt 16 and the lower disc groove 18 to support the corresponding conveying belt and is dissipated into the return layer chamber from two sides of the conveying belt in the width direction.
In fact, because the upper and lower dish groove all adopts and only sets up the single orifice in the middle part, the displacement is less, and, because the conveyer belt is the same thickness, the single orifice mainly blows corresponding to the conveyer belt intermediate position, form the thick in the middle of the easy before conveyer belt and corresponding dish groove of operation, both sides thin air film, and, the thickness of this kind of air film is from middle to both sides tapering gradually, this just forms the shrink effect on both sides, make the tolerance of overflowing through conveyer belt width direction both sides less, so, also lower to the whole power requirement of fan.
In addition, a dust collector 3 is arranged at the top of the air cushion conveying host 100, as shown in fig. 3 and 4, the dust collector 3 herein integrally includes a dust collector housing, a dust collecting structure 31 and a compressed air pipeline 40, the dust collecting structure 31 specifically includes a dust collecting cloth bag, an opening is arranged at the top of the air cushion conveying host 100, a flange structure is arranged at the opening, the bottom of the dust collector housing is fixedly connected to the opening at the top of the air cushion conveying host through the flange connection structure, a lower air suction opening is arranged at the bottom of the dust collector housing, an upper air suction opening is arranged at the upper part of the dust collector housing, the lower air suction opening is in butt joint communication with the opening at the top of the air cushion conveying host so as to be communicated with the conveying layer cavity, and the upper air suction opening is in butt joint with an air suction pipeline 2 and is communicated with an air inlet of an air supply fan 1 through the air suction pipeline 2.
The dust remover shell comprises a sedimentation shell 30, the sedimentation shell 30 mainly guides gas sedimentation, the bottom of the sedimentation shell 30 is fixedly arranged at an opening at the top of an air cushion conveying main body, the bottom opening of the sedimentation shell is communicated with a conveying layer cavity as a lower air suction port of the dust remover, the sedimentation shell 30 is provided with a deformation sedimentation section extending along the vertical direction, and the section size of the deformation sedimentation section is gradually reduced from bottom to top. In fact, the settling shell herein specifically comprises peripheral side wall plates arranged along the circumferential direction, and the peripheral side wall plates are arranged in an inward inclined manner from bottom to top, so that the cross-sectional dimension of the deformed settling section is gradually reduced.
When the gas carrying dust rises through the dust removal cloth bag 41, the dust removal cloth bag 41 filters the dust, in order to clean the dust, the electromagnetic valve on the compressed air pipeline 40 is opened, the compressed air pipeline supplies compressed gas to the dust removal cloth bag, the dust on the dust removal cloth bag is shaken off, and the dust falls back into the conveying layer cavity through secondary sedimentation of the sedimentation shell.
In addition, in the present embodiment, the dust collector 3 and the air supply fan 1 are sequentially spaced in the front-rear direction, so that the air suction duct 2 can be substantially horizontally arranged.
The air suction pipe 2 and the ventilation part on the dust remover form an air suction channel, one end of the air suction channel is communicated with the conveying layer chamber, the other end of the air suction channel is communicated with the air inlet of the fan, negative pressure can be formed in the conveying layer chamber, the inner part of the machine head sealing shell and the inner part of the machine tail sealing shell, so that the whole conveying layer chamber, the inner part of the machine head sealing shell and the machine tail sealing shell form negative pressure chambers, thus, when the fan works, air is sucked from the conveying layer chamber 4 through the settling shell 30 and is sent into the upper air chamber and the lower air chamber after being pressurized, partial pressurized air in the upper air chamber enters the conveying layer chamber 4 through a single-row of throttling holes on the upper disk groove 17, the pressurized air in the lower air chamber enters the return layer chamber 9 through a single-row throttling hole on the lower disk groove 18, and the air in the return layer chamber 9 enters the conveying layer chamber 4 through the machine head sealing shell 200 and the machine tail sealing shell 300, and finally enters a dust remover 3, an air suction pipeline 2 and an air supply fan 1 to form a self-circulation system.
Because the air input demand that the single round of hole leads to is less, adopt fan self to form the suction effect to the transport layer cavity through subsiding the casing and can make whole aircraft nose seal shell, tail seal shell and transport layer cavity inside become the negative pressure cavity. When utilizing air cushion belt conveyor to carry the material, the dust is many to be produced in feed inlet, discharge gate department, owing to become the negative pressure cavity with the inside negative pressure cavity that becomes of aircraft nose seal shell, tail seal shell and transport layer cavity, can form the phenomenon of inwards breathing in each slight gap department of air cushion belt conveyor, has effectively stopped the excessive condition of dust, possesses good dustproof effect for air cushion belt conveyor has possessed good feature of environmental protection.
The settling shell is of a wide-mouth structure, and the size of the cross section of the settling shell gradually decreases from bottom to top, so that when dust-containing airflow enters the inlet of the settling shell, the airflow has a low wind speed, the dust settling can be realized, the dust sinks back to the conveying belt, and finally the dust is conveyed to the feed opening by the conveying belt.
The specific embodiment 2 of the air cushion belt conveyor provided by the invention is as follows:
it differs from example 1 mainly in that: in embodiment 1, set up the dust remover at air cushion conveying host computer top, utilize a part of dust remover self casing as subsiding the casing, in fact, owing to adopt single row orifice air feed, need less tolerance can hold up the conveyer belt, and at this moment, the inside floated dust of transfer floor chamber is less, consequently satisfy the negative pressure suction can, at this moment, can only set up and subside the casing, save inside dust removal structure.
it differs from example 1 mainly in that: in example 1, the air-cushion belt conveyor is a full air-cushion belt conveyor, which has an upper air chamber and a lower air chamber, and correspondingly, can provide air suspension support for a feeding belt and a return belt respectively. As shown in fig. 5, in this embodiment, the air cushion belt conveyor is a half air cushion belt conveyor, the conveying layer still uses a mode that the air film in the chamber of the conveying layer supports the conveying belt, the return layer uses a mode that the lower return idler 20 supports the conveying belt, the air cushion conveying main body only includes the chamber 4 of the conveying layer, the upper tray 17 and the upper air chamber 5, the structure only includes a cover plate, the upper tray, a left Z-shaped plate and a right Z-shaped plate, and the belt in the return is supported and conveyed by the corresponding lower return idler 20. At the moment, the air supply fan 1 only supplies air to the upper air chamber 5 and sucks the conveying layer chamber 4 through the dust remover 3 and the air suction pipeline 2 so as to form a negative pressure cavity in the conveying layer chamber 4, the inside of the machine head sealing shell and the inside of the machine tail sealing shell and avoid dust leakage.
Finally, although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments without departing from the inventive concept, or some of the technical features may be replaced with equivalents. 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 (6)
1. An air cushion belt conveyor comprising:
the air cushion conveying main body extends along the front-back direction and comprises an upper disc groove which is arranged in a downward protruding mode, the upper disc groove separates a conveying layer cavity and an upper air chamber in the air cushion conveying main body, the upper air chamber is located below the conveying layer cavity, and a throttling hole is formed in the upper disc groove and is used for communicating the upper air chamber with the conveying layer cavity;
the machine head sealing shell and the machine tail sealing shell are correspondingly and hermetically connected to the front end and the rear end of the air cushion conveying main body, and a discharge hole is formed in the bottom of the machine head sealing shell;
the driving roller and the driven roller are correspondingly arranged in the machine head sealing shell and the machine tail sealing shell;
the conveying belt is wound on the driving roller and the driven roller and correspondingly penetrates through the conveying layer chamber;
the feeding hole is arranged on the air cushion conveying main body and used for feeding materials to the conveying layer cavity;
the air supply fan is provided with an air outlet, the air outlet is communicated with the upper air chamber through an air supply pipeline so as to supply air with pressure to the upper air chamber, and the air with pressure in the upper air chamber enters the conveying layer cavity through the throttling hole so as to form an air film between the conveying belt and the upper disc groove and be used for supporting the conveying belt and materials borne by the conveying belt;
it is characterized in that the preparation method is characterized in that,
the throttling holes in the upper disc groove are positioned in the middle of the upper disc groove, are only arranged in a single row and are sequentially arranged at intervals from front to back along the length direction of the air cushion conveying main body;
the air inlet of the air supply fan is communicated with the conveying layer cavity through an air suction channel, and air is sucked by the conveying belt during material transportation so that negative pressure cavities are formed in the conveying layer cavity, the inside of the machine head sealing shell and the inside of the machine tail sealing shell.
2. The air cushion belt conveyor as claimed in claim 1, wherein the air suction channel comprises an air suction pipe, the top of the air cushion conveyor body is fixedly provided with a dust remover, the dust remover is provided with a lower air suction opening and an upper air suction opening, the lower air suction opening is communicated with the conveying layer chamber, and the upper air suction opening is communicated with the air inlet of the air supply fan through the air suction pipe, so that the air supply opening of the air supply fan is communicated with the conveying layer chamber.
3. The air cushion belt conveyor of claim 2, wherein the dust catcher comprises a dust catcher housing fixedly mounted on top of the air cushion conveyor body, the bottom of the dust catcher housing having the lower suction opening, the upper portion of the dust catcher housing having the upper discharge opening, the dust catcher housing having a dust catching structure therein.
4. The air cushion belt conveyor as claimed in claim 3, wherein the dust collector housing comprises a settling housing, the bottom of the settling housing is fixedly arranged at the top of the air cushion conveyor main body, the bottom opening of the settling housing is communicated with the conveying layer chamber to form the lower air suction port, the settling housing is provided with a deformation settling section extending along the up-down direction, and the cross-sectional dimension of the deformation settling section is gradually reduced from bottom to top.
5. The air cushion belt conveyor of claim 2, wherein the dust collector and the air supply fan are spaced apart in a fore-and-aft direction.
6. The air cushion belt conveyor according to any one of claims 1 to 5, wherein a lower disc groove is formed in the air cushion conveyor body, the lower disc groove separates a return layer chamber and a lower air chamber in the air cushion conveyor body for the return passage of the conveyor belt, a single-row orifice distributed in the front-rear direction is formed in the middle of the lower disc groove, the single-row orifice in the lower disc groove communicates with the lower air chamber and the return layer chamber, two ends of the return layer chamber communicate with the conveyor layer chamber through the head seal housing and the tail seal housing, and the upper air chamber and the lower air chamber communicate with each other through a lower air chamber communication air pipe, so that a part of the inside of the upper air chamber enters the lower air chamber and enters the return layer chamber through the single-row orifice in the lower disc groove to support the conveyor belt.
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|---|---|---|---|
| CN202010706423.0A CN113955385A (en) | 2020-07-21 | 2020-07-21 | Air cushion belt conveyor |
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| CN202010706423.0A CN113955385A (en) | 2020-07-21 | 2020-07-21 | Air cushion belt conveyor |
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