CN116619248B - Dust removing device for non-closed rust remover - Google Patents
Dust removing device for non-closed rust remover Download PDFInfo
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- CN116619248B CN116619248B CN202310888671.5A CN202310888671A CN116619248B CN 116619248 B CN116619248 B CN 116619248B CN 202310888671 A CN202310888671 A CN 202310888671A CN 116619248 B CN116619248 B CN 116619248B
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- air
- gas collecting
- collecting tube
- dust
- main body
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- 239000000428 dust Substances 0.000 title claims abstract description 85
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 title claims abstract description 41
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 77
- 239000006004 Quartz sand Substances 0.000 claims abstract description 63
- 239000000463 material Substances 0.000 claims abstract description 44
- 238000012216 screening Methods 0.000 claims abstract description 38
- 230000007246 mechanism Effects 0.000 claims abstract description 37
- 238000005488 sandblasting Methods 0.000 claims abstract description 32
- 239000004576 sand Substances 0.000 claims abstract description 14
- 239000010410 layer Substances 0.000 claims description 92
- 239000011229 interlayer Substances 0.000 claims description 41
- 230000009471 action Effects 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 4
- 230000002265 prevention Effects 0.000 claims description 4
- 241000255129 Phlebotominae Species 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims 2
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000000903 blocking effect Effects 0.000 abstract description 5
- 238000001179 sorption measurement Methods 0.000 description 19
- 238000000034 method Methods 0.000 description 17
- 230000008569 process Effects 0.000 description 15
- 244000035744 Hura crepitans Species 0.000 description 11
- 230000005389 magnetism Effects 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 238000001914 filtration Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 241000255925 Diptera Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000002355 dual-layer Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/08—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for polishing surfaces, e.g. smoothing a surface by making use of liquid-borne abrasives
- B24C1/086—Descaling; Removing coating films
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C5/00—Devices or accessories for generating abrasive blasts
- B24C5/02—Blast guns, e.g. for generating high velocity abrasive fluid jets for cutting materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
- B24C7/0046—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a gaseous carrier
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C9/00—Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material
- B24C9/003—Removing abrasive powder out of the blasting machine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C9/00—Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material
- B24C9/006—Treatment of used abrasive material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention discloses a dust removing device for a non-closed rust remover, which comprises a sand blasting executing mechanism, an air external internal circulation mechanism and a double-layer overflow preventing mechanism. The invention belongs to the technical field of dust removal screening devices, and particularly relates to a dust removal device for a non-closed rust remover; on one hand, the invention also ensures that the rebounded sand material cannot fly out of the gap by arranging a double-layer blocking mode; on the other hand, the invention also designs the high flow speed part and the expansion part, so that the high-speed air flow in the high flow speed part and the dust wrapped by the high flow speed air flow can be quickly decelerated when entering the expansion part, and the quartz sand with certain mass can be kept high speed and then thrown out to finish screening.
Description
Technical Field
The invention belongs to the technical field of dust removal screening devices, and particularly relates to a dust removal device for a non-closed rust remover.
Background
In the process of the rust removing process such as sand blasting, a large amount of floating dust is generated, and the floating dust consists of fine substances such as dust, so that for small-sized parts, the rust removing is preferably performed in a closed rust removing box, and the floating dust does not pollute the external environment, but for elongated workpieces such as sectional materials, trusses and the like, tunnel type rust removing devices (large-sized workpieces with larger sizes generally need to be provided with rust removing devices capable of being placed on the workpieces, such as a hand-held grinder and the like, and the scope of the discussion is not limited herein).
The two ends of the tunnel rust removing device cannot be sealed, and the belt at one end is generally used for shielding, but a gap is necessarily formed between the belt and the surface of the workpiece after the belt is jacked up by the workpiece, so that in the rust removing process, floating dust can leak, and materials rebounded at high speed in the sand blasting process can fly out of the gap easily.
Dust is easier to overflow in the sand blasting process, and the sand blasting process mainly has the following two characteristics:
first: the quartz sand is sprayed out by the high-pressure air flow, and because the air continuously enters the box body through the spray gun, the air pressure in the box body is higher than the outside, so that the air in the box body has a trend of flowing towards the outside, and dust is easier to overflow;
second,: the particle size of the quartz sand particles is very small, and the quartz sand particles cannot be stopped by a steel wire mesh like a steel shot, so that a filtering layer of the quartz sand particles can be intercepted, and the quartz sand particles have larger airflow resistance, so that sand materials and dust are separated, and larger resistance needs to be overcome.
If the high-pressure air pump of the spray gun is used for driving air to flow and dust removal and filtration are completed, the air can be subjected to larger resistance when passing through the filtering layer capable of filtering sand materials, so that the spray air pressure is greatly reduced, which is obviously unacceptable.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a dust removing device for a non-closed type rust remover, dust is easy to leak in a sand blasting process, on one hand, because the dust amount is large, and on the other hand, high-pressure air is continuously blown into a box, and air in the box overflows outwards, so that the aim of reducing flying dust is to be firstly done, and the strength of air convection is reduced, therefore, the invention provides a mode of internal circulation air, and the exchange of air in the box and air outside the box is reduced, but only the diffusion speed of floating dust can be reduced, and the problem cannot be fundamentally solved; in addition, on one hand, the invention also ensures that the rebounded sand material cannot fly out of the gap by arranging a double-layer blocking mode; on the other hand, the invention also designs the high flow speed part and the expansion part, so that the high-speed air flow in the high flow speed part and the dust wrapped by the high flow speed air flow can be quickly decelerated when entering the expansion part, and the quartz sand with certain mass can be kept high speed and then thrown out to finish screening.
However, because the air in the differential pressure type screening device is sucked and flowed by negative pressure instead of being pushed and flowed by positive pressure, the air can enter the expansion part from the outside through the discharge part, so that the dust at the expansion part can be just prevented from leaking, but two other problems are brought about, namely, the air flowing backwards reduces the flying-out speed of sand materials, and the air can influence the air suction capacity of the semicircular gas collecting tube if the air enters too much from the discharge part, and the invention perfectly solves the two problems by arranging the discharge part which sags and receives along the sand material throwing path.
The technical scheme adopted by the invention is as follows: the invention provides a dust removing device for a non-closed rust remover, which comprises a sand blasting executing mechanism, wherein the sand blasting executing mechanism comprises a main body bottom plate, a main body frame, a supporting roller and a sand blasting rust removing device, the main body frame is arranged on the main body bottom plate, sand blasting heads are uniformly distributed on the inner ring of the sand blasting rust removing device in an annular manner,
the air-conditioning system further comprises an external air internal circulation mechanism and a double-layer anti-overflow mechanism, wherein the external air internal circulation mechanism is symmetrically arranged on the main body frame, and the double-layer anti-overflow mechanism is arranged on the outer side of the external air internal circulation mechanism;
further, the air external internal circulation mechanism comprises an annular gas collecting tube assembly, a differential pressure type screening device, a dust removing assembly and an air pump, wherein the annular gas collecting tube assembly is fixedly connected to the main body frame, the differential pressure type screening device is arranged on the annular gas collecting tube assembly, and the dust removing assembly is arranged on the differential pressure type screening device;
the annular gas collecting tube assembly comprises a semicircular gas collecting tube, a straight tube and an annular gas collecting tube, wherein the gas collecting tube is provided with a gas collecting tube mounting frame, the telescopic semicircular gas collecting tube is fixedly connected to the outer side of the main body frame through the gas collecting tube mounting frame, the annular gas collecting tube and the semicircular gas collecting tube are of hollow structures, the annular gas collecting tube and the semicircular gas collecting tube are connected through the straight tube, the gas mixed with dust in the main body frame can be adsorbed and collected from two ends through the open semicircular gas collecting tube, a small amount of quartz sand and crushed iron rust can be unavoidably inhaled, although the differential pressure type screening device, the dust removing assembly and the air pump are all located on the outer side of the main body frame, air circulation generated by the external air circulation mechanism still belongs to the inner circulation of the main body frame, and therefore the possibility of dust overflow is not reduced in principle.
Preferably, a collecting pipe high-speed joint is arranged at the bottom of the annular collecting pipe, an air inlet joint matched with the collecting pipe high-speed joint is arranged on the differential pressure type screening device, and the differential pressure type screening device is connected with the collecting pipe high-speed joint through the air inlet joint;
the pressure difference type screening device is characterized in that a high flow speed part, an expansion part and an air outlet connector are sequentially arranged on the side surface of the air inlet connector, and the joint of the high flow speed part, the expansion part and the air outlet connector is in smooth transition through a curved surface;
the differential pressure type screening device is characterized in that a discharge part for discharging materials is further arranged at the joint of the expansion part and the air outlet joint, the flow speed of high-speed air flow in the high-flow speed part can be rapidly reduced after entering the expansion part, but granular quartz sand materials with certain inertia still fly forward under the action of inertia, in the process, the quartz sand materials fly forward and dust flows along with air, so that screening of the quartz sand materials is completed, but the discharge port of the quartz sand materials can have air flow opposite to the movement direction of the quartz sand materials, and therefore, by adopting a mode of converging the quartz sand material port along a quartz sand material path, the air flow resistance of the discharge part can be increased, the air flow entering the expansion part from the discharge part can be reduced, on one hand, the influence of countercurrent air on the movement of the quartz sand materials can be reduced, and on the other hand, the adsorption capacity of the semicircular gas collecting pipe can be kept as much as possible.
As a further preferred aspect of the present invention, the dust removing assembly includes a front circulation pipe, a rear circulation pipe, and a dust removing box, the front circulation pipe is disposed on the air outlet connector, the dust removing box is disposed between the front circulation pipe and the rear circulation pipe, the rear circulation pipe is disposed on an air pump, the air pump is disposed at the bottom of the main body bottom plate, the air in the rear circulation pipe can be conveyed to the sand blasting and derusting device through the air pump, and sprayed out again through the sand blasting head, and the dust removing box adopts an adsorption mode with small resistance such as wet adsorption or electrostatic adsorption, so that the attenuation of the air flow passing through the dust removing box can be reduced, and the air flow rate at the sand blasting head can be ensured and maintained.
Further, the double-layer anti-overflow mechanism comprises an inner layer closing component, an interlayer component and an outer layer closing component, wherein,
the inner layer closing component is arranged on the gas collecting tube mounting frame, the interlayer component is arranged on the inner layer closing component, and the outer layer closing component is arranged on the interlayer component.
Preferably, the inner layer closing assembly comprises an inner layer baffle support and an inner layer closing baffle, the inner layer baffle support is fixedly connected to the gas collecting tube mounting frame, inner layer support round holes are uniformly distributed in an annular mode on the inner layer baffle support, and the straight tube penetrates through the inner layer support round holes;
the inner layer closed baffle is annularly distributed, the fixed end of the inner layer closed baffle is fixedly connected to the inner layer baffle support, and the free end of the inner layer closed baffle can be bent according to the shape of a workpiece.
As a further preferred aspect of the present invention, the interlayer assembly includes an interlayer housing and an interlayer collecting tank, the interlayer housing is fixedly connected to the inner baffle support, the interlayer collecting tank is disposed at the bottom of the interlayer housing, the bottom surface of the interlayer collecting tank is disposed in an inclined manner, and a collecting tank blanking opening is disposed at the bottommost portion.
As a further preferable mode of the invention, the outer layer closing component comprises an outer layer baffle support and an outer layer closing baffle, wherein the outer layer baffle support is fixedly connected to the interlayer shell, the outer layer closing baffles are distributed in a ring shape, and the fixed end of the outer layer closing baffle is fixedly connected to the outer layer baffle support.
The inner layer closing baffle and the outer layer closing baffle are clung to the workpiece, but have gaps inevitably, dust in the main body frame only can be naturally diffused instead of overflowed under the condition that the internal and external air pressures of the main body frame are balanced, dust can not pass through the inner layer closing assembly basically due to the adsorption effect of the semicircular gas collecting tube, but quartz sand materials collided on the workpiece still have higher speed, and can easily pass through gaps between the inner layer closing baffle and the workpiece to enter the interlayer assembly if the angle is proper, and the outer layer closing baffle can be used for blocking the quartz sand materials for the second time so as to prevent the quartz sand materials from scattering outside.
Further, the bottom of main part bottom plate has the slope, the bottom minimum of main part bottom plate is provided with the bottom plate collecting pipe that link up with the intermediate layer collecting vat, can sink the sand material on the main part bottom plate to the intermediate layer collecting vat through the bottom plate collecting pipe, quartz sand material and rust in the main part bottom plate get into the intermediate layer collecting vat through the bottom plate collecting pipe, then get into the sand box through the collecting vat feed opening, before getting into the sand box, the mixture can be through one section has magnetic intermediate layer, possesses the rust of magnetism this moment and can be adsorbed, and no magnetic quartz sand then can get into sand box reuse.
In a further preferred aspect of the present invention, the main body frame is symmetrically provided with frame holes, the support roller is provided with a freely rotatable roller spindle, and the roller spindle is engaged with the frame holes.
The beneficial effects obtained by the invention by adopting the structure are as follows:
(1) Through open-type semi-circular gas collecting tube, can adsorb and collect the gas that has mixed the dust in the main part frame from both ends, along with also can inevitably inhale a small amount of quartz sand material and broken iron rust, although differential pressure screening plant, dust removal subassembly and air pump all are located the outside of main part frame, because bleed (semi-circular gas collecting tube) and jet (sandblast head) all are located the inside of main part frame, the air cycle that the external internal circulation mechanism of air produced still belongs to the internal circulation of main part frame, consequently can not make the internal atmospheric pressure of main part frame rise, just also reduced the possibility that the dust overflowed in principle.
(2) The high-speed airflow in the high-flow-rate part can quickly reduce the flow rate after entering the expansion part, but the granular quartz sand with certain inertia still flies forward under the action of the inertia, in the process, the quartz sand flies forward and dust flows along with air, so that screening of the quartz sand and the expansion part is finished, but the throwing outlet of the quartz sand can have airflow opposite to the moving direction of the quartz sand, so that the airflow resistance at the discharge part can be increased and the airflow entering the expansion part from the discharge part can be reduced by adopting a mode of converging the quartz sand along the quartz sand path, on one hand, the influence of countercurrent air on the movement of the quartz sand can be reduced, and on the other hand, the adsorption capacity at the semicircular gas collecting pipe can be kept as much as possible.
(3) The dust removing box adopts an adsorption mode with small resistance such as wet adsorption or electrostatic adsorption, and the like, so that the attenuation of air flow passing through the dust removing box can be reduced, and the air flow rate at the sand blasting head can be ensured and maintained.
(4) The inner layer closing baffle and the outer layer closing baffle are clung to the workpiece, but have gaps inevitably, dust in the main body frame only can be naturally diffused instead of overflowed under the condition that the internal and external air pressures of the main body frame are balanced, dust can not pass through the inner layer closing assembly basically due to the adsorption effect of the semicircular gas collecting tube, but quartz sand materials collided on the workpiece still have higher speed, and can easily pass through gaps between the inner layer closing baffle and the workpiece to enter the interlayer assembly if the angle is proper, and the outer layer closing baffle can be used for blocking the quartz sand materials for the second time so as to prevent the quartz sand materials from scattering outside.
(5) Quartz sand materials and rust in the main body bottom plate enter the interlayer collecting tank through the bottom plate collecting pipe, then enter the sand box through the collecting tank feed opening, and before entering the sand box, the mixture can pass through a section of interlayer with magnetism, at the moment, the rust with magnetism can be adsorbed, and quartz sand without magnetism can enter the sand box for recycling.
Drawings
Fig. 1 is a perspective view of a dust removing device for a non-closed type rust remover according to the present invention;
fig. 2 is an exploded view of a dust removing device for a non-hermetic rust remover according to the present invention;
fig. 3 is a front view of a dust removing device for a non-hermetic rust remover according to the present invention;
FIG. 4 is a cross-sectional view taken along section line A-A in FIG. 3;
FIG. 5 is a cross-sectional view taken along section line B-B in FIG. 4;
FIG. 6 is a cross-sectional view taken along section line C-C in FIG. 4;
FIG. 7 is a cross-sectional view taken along section line D-D in FIG. 5;
FIG. 8 is an enlarged view of a portion of the portion I of FIG. 5;
FIG. 9 is an enlarged view of a portion of the portion II of FIG. 5;
FIG. 10 is a schematic diagram of the direction of air flow in a differential pressure type screening device.
The device comprises a 1, an external air internal circulation mechanism, a 2, a double-layer overflow prevention mechanism, a 3, a sand blasting execution mechanism, a 4, an annular gas collecting tube assembly, a 5, a differential pressure type screening device, a 6, a dust removing assembly, a 7, an air pump, a 8, a semicircular gas collecting tube, a 9, a straight tube, a 10, an annular collecting tube, a 11, an air inlet connector, a 12, a high flow rate part, a 13, an expanding part, a 14, an air outlet connector, a 15, a discharging part, a 16, a front circulation pipeline, a 17, a rear circulation pipeline, a 18, a dust removing box, a 19, a gas collecting tube mounting frame, a 20, a collecting tube high-speed connector, a 21, an inner layer closing assembly, a 22, an interlayer assembly, a 23, an outer layer closing assembly, a 24, an inner layer baffle support, a 25, an inner layer closing baffle, a 26, an interlayer shell, a 27, an interlayer collecting tank, a 28, an outer layer baffle support, a 29, an outer layer closing baffle, a 30, an inner layer support round hole, a 31, a collecting tank blanking port, a 32, a main body bottom plate, a 33, a main body frame, a 34, a supporting roller, a 35, a sand blasting rust removing device, a 36, a bottom plate, a 37, a frame hole, a main bodies and a 39, a sand blasting head and a 39.
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention; all other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate orientation or positional relationships based on those shown in the drawings, merely to facilitate description of the invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
As shown in fig. 1-9, the invention provides a dust removing device for a non-closed rust remover, which comprises a sand blasting executing mechanism 3, wherein the sand blasting executing mechanism 3 comprises a main body bottom plate 32, a main body frame 33, a supporting roller 34 and a sand blasting rust removing device 35, the main body frame 33 is arranged on the main body bottom plate 32, sand blasting heads 39 are uniformly distributed on the inner ring of the sand blasting rust removing device 35 in a ring shape,
the bottom of the main body bottom plate 32 is provided with a slope, the bottom lowest point of the main body bottom plate 32 is provided with a bottom plate collecting pipe 36 communicated with the interlayer collecting groove 27, sand materials on the main body bottom plate 32 can be collected into the interlayer collecting groove 27 through the bottom plate collecting pipe 36, quartz sand materials and rust in the main body bottom plate 32 enter the interlayer collecting groove 27 through the bottom plate collecting pipe 36, then enter a sand box through a collecting groove feed opening 31, before entering the sand box, a mixture can pass through a section of interlayer with magnetism, at the moment, the rust with magnetism can be adsorbed, and quartz sand without magnetism can enter the sand box for recycling.
The main body frame 33 is symmetrically provided with frame holes 37, the support roller 34 is provided with a freely rotatable roller main shaft 38, and the roller main shaft 38 is engaged with the frame holes 37.
The air-conditioner also comprises an external air internal circulation mechanism 1 and a double-layer anti-overflow mechanism 2, wherein the external air internal circulation mechanism 1 is symmetrically arranged on the main body frame 33, and the double-layer anti-overflow mechanism 2 is arranged on the outer side of the external air internal circulation mechanism 1;
the air external internal circulation mechanism 1 comprises an annular gas collecting tube assembly 4, a differential pressure type screening device 5, a dust removing assembly 6 and an air pump 7, wherein the annular gas collecting tube assembly 4 is fixedly connected to a main body frame 33, the differential pressure type screening device 5 is arranged on the annular gas collecting tube assembly 4, and the dust removing assembly 6 is arranged on the differential pressure type screening device 5;
the annular gas collecting tube assembly 4 comprises a semicircular gas collecting tube 8, a straight tube 9 and an annular gas collecting tube 10, the semicircular gas collecting tube 8 is provided with a gas collecting tube mounting frame 19, the telescopic semicircular gas collecting tube 8 is fixedly connected to the outer side of the main body frame 33 through the gas collecting tube mounting frame 19, the annular gas collecting tube 10 and the semicircular gas collecting tube 8 are of hollow structures, the annular gas collecting tube 10 and the semicircular gas collecting tube 8 are connected through the straight tube 9, the air mixed with dust in the main body frame 33 can be adsorbed and collected through the open semicircular gas collecting tube 8 from two ends, a small amount of quartz sand and crushed iron rust can be absorbed inevitably, and although the differential pressure type screening device 5, the dust removing assembly 6 and the air pump 7 are located outside the main body frame 33, air circulation generated by the air external internal circulation mechanism 1 still belongs to the internal circulation of the main body frame 33, the air pressure in the main body frame 33 is not increased, and the possibility of dust overflow is reduced in principle.
The bottom of the annular collecting pipe 10 is provided with a collecting pipe high-speed joint 20, the differential pressure type screening device 5 is provided with an air inlet joint 11 matched with the collecting pipe high-speed joint 20, and the differential pressure type screening device 5 is connected with the collecting pipe high-speed joint 20 through the air inlet joint 11;
the differential pressure type screening device 5 is provided with a high flow rate part 12, an expansion part 13 and an air outlet joint 14 on the side surface of an air inlet joint 11 in sequence, and the joint of the high flow rate part 12, the expansion part 13 and the air outlet joint 14 is in smooth transition through a curved surface;
the differential pressure type screening device 5 is further provided with a discharge part 15 for discharging materials at the joint of the expansion part 13 and the air outlet joint 14, the flow speed of high-speed air flow in the high-flow speed part 12 can be rapidly reduced after entering the expansion part 13, but granular quartz sand materials with certain inertia still fly forward under the action of inertia, in the process, the quartz sand materials fly forward and dust flows along with air, so that screening of the quartz sand materials is finished, but the discharge port of the quartz sand materials has air flow opposite to the movement direction of the quartz sand materials, so that by adopting a mode of converging the quartz sand material port along a quartz sand material path, the air flow resistance at the discharge part 15 can be increased, the air flow entering the expansion part 13 from the discharge part 15 can be reduced, on one hand, the influence of countercurrent air on the movement of the quartz sand materials can be reduced, and on the other hand, the adsorption capacity at the semicircular gas collecting tube 8 can be kept as much as possible.
The dust removal assembly 6 comprises a front circulation pipeline 16, a rear circulation pipeline 17 and a dust removal box 18, wherein the front circulation pipeline 16 is arranged on the air outlet joint 14, the dust removal box 18 is arranged between the front circulation pipeline 16 and the rear circulation pipeline 17, the rear circulation pipeline 17 is arranged on the air pump 7, the air pump 7 is arranged at the bottom of the main body bottom plate 32, air in the rear circulation pipeline 17 can be conveyed to the sand blasting rust removing device 35 through the air pump 7, the air can be sprayed out through the sand blasting head 39 again, and the attenuation of the air flow when passing through the dust removal box 18 can be reduced by adopting an adsorption mode with small resistance such as wet adsorption or electrostatic adsorption, so that the air flow rate at the sand blasting head 39 is ensured and maintained.
The dual-layer spill-resistant mechanism 2 includes an inner closure assembly 21, a sandwich assembly 22, and an outer closure assembly 23, wherein,
the inner closing component 21 is arranged on the gas collecting tube mounting frame 19, the interlayer component 22 is arranged on the inner closing component 21, and the outer closing component 23 is arranged on the interlayer component 22.
The inner layer closing assembly 21 comprises an inner layer baffle support 24 and an inner layer closing baffle 25, the inner layer baffle support 24 is fixedly connected to the gas collecting tube mounting frame 19, inner layer support round holes 30 are uniformly distributed on the inner layer baffle support 24 in an annular mode, and the straight tube 9 penetrates through the inner layer support round holes 30;
the inner-layer closing baffle plates 25 are distributed in an annular shape, the fixed ends of the inner-layer closing baffle plates 25 are fixedly connected to the inner-layer baffle plate bracket 24, and the free ends of the inner-layer closing baffle plates 25 can be bent according to the shape of a workpiece.
The interlayer assembly 22 comprises an interlayer shell 26 and an interlayer collecting groove 27, wherein the interlayer shell 26 is fixedly connected to the inner layer baffle support 24, the interlayer collecting groove 27 is arranged at the bottom of the interlayer shell 26, the bottom surface of the interlayer collecting groove 27 is obliquely arranged, and a collecting groove blanking opening 31 is formed in the bottommost part.
The outer closing component 23 comprises an outer baffle support 28 and an outer closing baffle 29, wherein the outer baffle support 28 is fixedly connected to the interlayer shell 26, the outer closing baffles 29 are distributed in a ring shape, and the fixed end of the outer closing baffle 29 is fixedly connected to the outer baffle support 28.
The inner closing baffle 25 and the outer closing baffle 29 are clung to the workpiece, but have to have a gap, and under the condition that the internal and external air pressures of the main body frame 33 are balanced, dust in the main body frame 33 only naturally diffuses instead of overflows, at this time, the dust can not pass through the inner closing assembly 21 basically through the adsorption effect of the semicircular gas collecting tube 8, but the quartz sand material collided on the workpiece still has a higher speed, and if the angle is proper, the quartz sand material can easily pass through the gap between the inner closing baffle 25 and the workpiece to enter the interlayer assembly 22, and at this time, the outer closing baffle 29 can perform secondary blocking on the quartz sand material to prevent the quartz sand material from scattering to the outside. .
As shown in fig. 10, the broken line indicates an air flow path schematic, the arrow indicates an air flow direction, the dash-dot line indicates a sand discharge path schematic, and the arrow indicates a direction.
When the device is specifically used, firstly, a user needs to pass through the double-layer anti-overflow mechanism 2 to enter the main body frame 33, meanwhile, the air pump 7 is started, high-pressure air flow sprayed by the air pump 7 drives quartz sand supplied from the sand box to be sprayed out together at a high speed through the sand blasting head 39, rust on the surface of the workpiece can be dropped when quartz sand moving at a high speed impacts the workpiece, and the workpiece can be subjected to sand blasting and rust removal from all angles in the process of slowly passing through the main body frame 33 through the sand blasting head 39 with a cross coverage area;
in the process, dust and other crushed fine particles attached to the surface of the workpiece are dispersed in the air, and when the air pump 7 is kept on, the air in the main body frame 33 enters the annular collecting pipe 10 through the semicircular gas collecting pipe 8 and the straight pipe 9 and enters the differential pressure type screening device 5 through the high-speed joint 20 of the collecting pipe;
the high-speed airflow in the high-speed flow part 12 can quickly reduce the flow speed after entering the expansion part 13, but the granular quartz sand with certain inertia can fly forward under the action of the inertia, in the process, the quartz sand flies forward and dust flows along with air, so that screening of the quartz sand and the expansion part is finished, but the throwing outlet of the quartz sand can have airflow opposite to the movement direction of the quartz sand, so that the airflow resistance at the discharge part 15 can be increased and the airflow entering the expansion part 13 from the discharge part 15 can be reduced by converging the quartz sand along the quartz sand path, on one hand, the influence of countercurrent air on the movement of the quartz sand can be reduced, and on the other hand, the adsorption capacity at the semicircular gas collecting tube 8 can be kept as much as possible;
the quartz sand flown out through the discharge part 15 falls into the interlayer collecting tank 27, and together with the mixture of sand and rust entering the interlayer collecting tank 27 through the bottom plate collecting pipe 36, the sand is sent back into the sand box after passing through an external device capable of screening the sand and the rust, and as the invention point of the device is to complete the separation of dust, large particles and air, and the prior art has various mature applications of separating rust and sand, such as a screen, the description is omitted herein;
the air entering the expansion part 13 from the high flow speed part 12 and the air entering the expansion part 13 from the discharge part 15 are wrapped with dust, enter the front circulation pipeline 16 from the air outlet joint 14, then enter the air suction end of the air pump 7 through the dust removing box 18 and the rear circulation pipeline 17, the circulation flow of the air in the main body frame 33 is completed, the dust in the air is adsorbed and stopped when the dust passes through the dust removing box 18, and the dust removing box 18 adopts an adsorption mode with small resistance such as wet adsorption or electrostatic adsorption, so that the attenuation amount when the air flow passes through the dust removing box 18 can be reduced, and the air flow rate at the sand blasting head 39 is ensured and maintained.
As another new embodiment of the present invention, the mounting height of the roller main shaft 38 can be changed by arranging the frame hole 37 in a longitudinal strip shape, so as to adapt to workpieces of different specifications, and the center of the cross section of the workpiece is closer to the center positions of the inner closing baffle 25 and the outer closing baffle 29.
It is noted that relational terms such as first and second, and the like are 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. Moreover, 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.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
The invention and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the invention as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present invention.
Claims (5)
1. The utility model provides a dust collector for non-closed derusting machine, includes sandblast actuating mechanism (3), sandblast actuating mechanism (3) include main part bottom plate (32), main part frame (33), backing roll (34) and sandblast rust cleaning device (35), wherein, main part frame (33) are located on main part bottom plate (32), the annular equipartition of inner circle of sandblast rust cleaning device (35) is equipped with sandblast head (39), its characterized in that:
the air overflow prevention device is characterized by further comprising an air external internal circulation mechanism (1) and a double-layer overflow prevention mechanism (2), wherein the air external internal circulation mechanism (1) is symmetrically arranged on the main body frame (33), and the double-layer overflow prevention mechanism (2) is arranged on the outer side of the air external internal circulation mechanism (1);
the air external internal circulation mechanism (1) comprises an annular gas collecting tube assembly (4), a differential pressure type screening device (5), a dust removing assembly (6) and an air pump (7), wherein the annular gas collecting tube assembly (4) is fixedly connected to a main body frame (33), the differential pressure type screening device (5) is arranged on the annular gas collecting tube assembly (4), and the dust removing assembly (6) is arranged on the differential pressure type screening device (5);
the annular gas collecting tube assembly (4) comprises a semicircular gas collecting tube (8), a straight tube (9) and an annular gas collecting tube (10), wherein a gas collecting tube mounting frame (19) is arranged on the semicircular gas collecting tube (8), the telescopic semicircular gas collecting tube (8) is fixedly connected to the outer side of the main body frame (33) through the gas collecting tube mounting frame (19), the annular gas collecting tube (10) and the semicircular gas collecting tube (8) are of hollow structures, and the annular gas collecting tube (10) and the semicircular gas collecting tube (8) are connected in a penetrating mode through the straight tube (9);
the bottom of the annular collecting pipe (10) is provided with a collecting pipe high-speed joint (20), the differential pressure type screening device (5) is provided with an air inlet joint (11) matched with the collecting pipe high-speed joint (20), and the differential pressure type screening device (5) is connected to the collecting pipe high-speed joint (20) through the air inlet joint (11);
the differential pressure type screening device (5) is characterized in that a high flow rate part (12), an expansion part (13) and an air outlet joint (14) are sequentially arranged on the side surface of an air inlet joint (11), and the joint of the high flow rate part (12), the expansion part (13) and the air outlet joint (14) is in smooth transition through a curved surface;
the differential pressure type screening device (5) is also provided with a discharge part (15) for discharging materials at the joint of the expansion part (13) and the air outlet joint (14);
the high-speed airflow in the high-speed part can quickly reduce the flow speed after entering the expansion part, quartz sand flies out towards the front under the action of inertia, and dust flows upwards along with air to finish screening of the quartz sand and the air;
the double-layer anti-overflow mechanism (2) comprises an inner layer closing component (21), an interlayer component (22) and an outer layer closing component (23), wherein,
the inner layer closing component (21) is arranged on the gas collecting tube mounting frame (19), the interlayer component (22) is arranged on the inner layer closing component (21), and the outer layer closing component (23) is arranged on the interlayer component (22);
the inner layer closing assembly (21) comprises an inner layer baffle support (24) and an inner layer closing baffle (25), the inner layer baffle support (24) is fixedly connected to the gas collecting tube mounting frame (19), inner layer support round holes (30) are uniformly distributed in an annular mode on the inner layer baffle support (24), and the straight tube (9) penetrates through the inner layer support round holes (30);
the inner-layer closing baffles (25) are distributed in an annular shape, the fixed ends of the inner-layer closing baffles (25) are fixedly connected to the inner-layer baffle support (24), and the free ends of the inner-layer closing baffles (25) can be bent according to the shape of a workpiece;
the sandwich assembly (22) comprises a sandwich shell (26) and a sandwich collecting groove (27), wherein the sandwich shell (26) is fixedly connected to the inner baffle support (24), the sandwich collecting groove (27) is formed in the bottom of the sandwich shell (26), and the bottom surface of the sandwich collecting groove (27) is obliquely arranged and provided with a collecting groove blanking opening (31) at the bottommost part.
2. The dust removing apparatus for a non-hermetic derusting machine as claimed in claim 1, wherein: the dust removal assembly (6) comprises a front circulation pipeline (16), a rear circulation pipeline (17) and a dust removal box (18), wherein the front circulation pipeline (16) is arranged on an air outlet joint (14), the dust removal box (18) is arranged between the front circulation pipeline (16) and the rear circulation pipeline (17), the rear circulation pipeline (17) is arranged on an air pump (7), the air pump (7) is arranged at the bottom of a main body bottom plate (32), and air in the rear circulation pipeline (17) can be conveyed to a sand blasting rust removing device (35) through the air pump (7) to be sprayed out through a sand blasting head (39).
3. A dust collector for a non-closed derusting machine as claimed in claim 2, wherein: the outer layer closure assembly (23) comprises an outer layer baffle support (28) and an outer layer closure baffle (29), wherein the outer layer baffle support (28) is fixedly connected to the interlayer shell (26), the outer layer closure baffles (29) are distributed in an annular shape, and the fixed end of the outer layer closure baffle (29) is fixedly connected to the outer layer baffle support (28).
4. A dust collector for a non-closed derusting machine as claimed in claim 3, wherein: the bottom of the main body bottom plate (32) is provided with a slope, the bottom lowest point of the main body bottom plate (32) is provided with a bottom plate collecting pipe (36) communicated with the interlayer collecting groove (27), and sand materials on the main body bottom plate (32) can be collected into the interlayer collecting groove (27) through the bottom plate collecting pipe (36).
5. The dust removing apparatus for a non-hermetic derusting machine as claimed in claim 4, wherein: the main body frame (33) is symmetrically provided with frame holes (37), the supporting roller (34) is internally provided with a roller main shaft (38) capable of freely rotating, and the roller main shaft (38) is clamped in the frame holes (37).
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| CN202310888671.5A CN116619248B (en) | 2023-07-19 | 2023-07-19 | Dust removing device for non-closed rust remover |
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| CN202310888671.5A CN116619248B (en) | 2023-07-19 | 2023-07-19 | Dust removing device for non-closed rust remover |
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| CN116619248A CN116619248A (en) | 2023-08-22 |
| CN116619248B true CN116619248B (en) | 2023-10-03 |
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