CN213946095U - Special shot blasting cleaning room for rail transit wagon door - Google Patents
Special shot blasting cleaning room for rail transit wagon door Download PDFInfo
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- CN213946095U CN213946095U CN202022873378.6U CN202022873378U CN213946095U CN 213946095 U CN213946095 U CN 213946095U CN 202022873378 U CN202022873378 U CN 202022873378U CN 213946095 U CN213946095 U CN 213946095U
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- chamber
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- cleaning chamber
- cleaning
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- 238000005422 blasting Methods 0.000 title claims abstract description 184
- 238000004140 cleaning Methods 0.000 title claims abstract description 72
- 238000002955 isolation Methods 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 13
- 239000006187 pill Substances 0.000 claims description 47
- 239000000428 dust Substances 0.000 claims description 34
- 239000004576 sand Substances 0.000 claims description 21
- 238000001514 detection method Methods 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 5
- 229910000831 Steel Inorganic materials 0.000 description 18
- 239000010959 steel Substances 0.000 description 18
- 238000012423 maintenance Methods 0.000 description 9
- 238000000926 separation method Methods 0.000 description 8
- 239000004677 Nylon Substances 0.000 description 7
- 229920001778 nylon Polymers 0.000 description 7
- 239000003638 chemical reducing agent Substances 0.000 description 6
- 238000007664 blowing Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 229910001208 Crucible steel Inorganic materials 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 3
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
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Abstract
The utility model discloses a special shot blasting cleaning chamber of rail transit railway freight car door. The shot blasting machine comprises an isolation chamber, a shot blasting chamber, a cleaning chamber, a shot circulating system and a shot blasting chamber roller way; the shot blasting chamber and the cleaning chamber are sequentially connected; the roller ways of the shot blasting chamber are positioned in the shot blasting chamber and the cleaning chamber; the air suction pipeline is arranged at the upper part of the isolation chamber; the shot material circulating system is respectively connected with the shot blasting chamber, the cleaning chamber and the shot collecting hopper; a plurality of impeller heads are arranged in the impeller head chamber; the plurality of impeller heads are placed in two layers; the impeller heads on the upper layer and the impeller heads on the lower layer are arranged on different sections and are arranged in a staggered manner. The utility model has the advantages of it is effectual to the rust cleaning of track traffic railway freight car door.
Description
Technical Field
The utility model relates to a special shot blasting cleaning chamber of rail transit railway freight car door.
Background
The door of the rail transit railway wagon is easy to rust when exposed in the air before use, the size of the door of the rail transit railway wagon after rusting is greatly different from that before rusting, the installation precision and the use effect of the door of the rail transit railway wagon are influenced, and meanwhile, the appearance of the door of the rail transit railway wagon is influenced by rusting. Therefore, it is necessary to remove rust from the doors of rail transit railway freight cars before use. Therefore, the development of a device for removing rust on the door of the rail transit railway wagon is needed.
Disclosure of Invention
The utility model aims at providing a special shot blasting cleaning chamber of rail transit railway freight car door, it is effectual to the rust cleaning of rail transit railway freight car door.
In order to realize the purpose, the technical scheme of the utility model is that: special shot blasting cleaning room of rail transit railway freight car door, its characterized in that: comprises an isolation chamber, a shot blasting chamber, a cleaning chamber, a shot circulation system and a shot blasting chamber roller way;
the shot blasting chamber and the cleaning chamber are sequentially connected; the roller ways of the shot blasting chamber are positioned in the shot blasting chamber and the cleaning chamber;
the air suction pipeline is arranged at the upper part of the isolation chamber;
the shot material circulating system is respectively connected with the shot blasting chamber, the cleaning chamber and the shot collecting hopper;
a plurality of impeller heads are arranged in the impeller head chamber; the plurality of impeller heads are placed in two layers; the impeller heads on the upper layer and the impeller heads on the lower layer are arranged on different sections and are arranged in a staggered manner.
In the technical scheme, the shot blasting chamber comprises a shot blasting chamber body and a shot blasting chamber door;
the shot blasting chamber body comprises an upper shot blasting chamber body and a lower shot blasting chamber body;
the shot blasting chamber body is of a plate welding three-layer structure; the shot blasting chamber body is sequentially provided with a shell, a lining strip and a guard plate from outside to inside;
the door of the shot blasting chamber is arranged at the inlet of the shot blasting chamber body.
In the technical scheme, the step is arranged outside the shot blasting chamber.
In the technical scheme, two sets of detection devices are arranged at the inlet of the shot blasting chamber.
In the technical scheme, the cleaning chamber comprises an upper cleaning chamber body and a lower cleaning chamber body; the upper body of the cleaning chamber is positioned at the upper part of the lower body of the cleaning chamber; the upper body of the cleaning chamber is connected with a preseparator;
the lower body of the cleaning chamber is connected with a pill collecting hopper.
In the technical scheme, the pill circulating system comprises a sand sliding hopper, a bucket type elevator, a top transverse spiral, a pill cleaner and a pill dust separating device; the sand sliding hopper, the bucket elevator, the top transverse screw and the pill cleaner are sequentially connected;
the bucket elevator is arranged outside the cleaning chamber;
the sand sliding hopper is connected with the pill collecting hopper.
The pill material cleaner comprises a pill dust separation device and a pill storage hopper; the pill dust separation device is respectively connected with the pill storage hopper and the waste hopper; the pill-dust separating device comprises a mesh screen separating structure and a wind power separating structure.
In the technical scheme, the rubber curtain is hung inside the isolation chamber.
The utility model has the advantages of as follows:
(1) the utility model derusts the workpiece through the pill falling from the high position, and has good derusting effect; the upper shot blasting device and the lower shot blasting device are arranged on different cross sections and staggered at an angle, so that shot of the shot blasting devices can be prevented from colliding with each other to influence shot blasting efficiency, and meanwhile, the shot blasting devices are prevented from wearing too fast caused by opposite blasting, the service life of equipment is greatly prolonged, the maintenance workload is reduced, the downtime due to maintenance is shortened, the efficiency of the equipment is improved, and the maintenance cost is reduced;
(2) the ladder platform arranged in the utility model is an inclined ladder which is divided into an upper layer and a lower layer; the terraces on the lower layer are arranged outside the lower body of the shot blasting chamber, and the terraces on the upper layer are arranged outside the upper body of the shot blasting chamber; the shot blasting machine can conveniently reach the upper body of the shot blasting chamber through the step platform positioned on the lower layer and then reach the upper platform of the shot blasting chamber from the upper body of the shot blasting chamber through the step platform positioned on the upper layer, so that tools can be conveniently carried and maintained;
(3) the end part sheaths are arranged at the two ends of the roller way of the shot blasting chamber in the utility model and are used for protecting the shaft heads; according to the invention, the shaft end of the roller is provided with the sand blocking sheath, so that the shaft head is protected, and the sand blocking sheath and the end part sheath form a closed-cell protection together, thereby preventing steel shots from flying out of a shot blasting chamber body from a shaft hole and ensuring that the steel shots cannot hit the shaft head at any time; the roller way of the shot blasting chamber of the utility model adopts a set of driving motor, which can be linked with the roller way and can move independently, and the whole line can realize stepless speed regulation; when the device normally works, the full-line roller ways are linked and stepless speed regulation is realized through frequency conversion; when the manual control is carried out, each section of roller way can be controlled respectively, so that the adjustment and the maintenance of the roller ways are convenient; when the roller way of the shot blasting chamber is automatically controlled and manually controlled, the speed can be directly adjusted and observed on the main control table.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a side view of fig. 1.
Fig. 3 is a partial perspective view of the bucket elevator of the present invention.
Fig. 4 is a schematic structural diagram of a roller way of the shot blasting chamber in the invention.
In the figure, 1-isolation chamber, 1.1-rubber curtain suspension, 2-shot blasting chamber, 2.1-shot blasting chamber body, 2.11-shot blasting chamber upper body, 2.12-shot blasting chamber lower body, 3-cleaning chamber, 3.1-cleaning chamber upper body, 3.2-cleaning chamber lower body, 4-shot circulating system, 4.1-sand slide hopper, 4.2-bucket elevator, 4.21-top cover plate, 4.22-upper wheel, 4.23-upper shaft, 4.24-hopper, 4.25-lower wheel, 4.26-lower shaft, 4.27-bucket elevator belt, 4.28-bucket elevator, 4.3-top transverse screw, 4.4-shot cleaner, 4.41-wind power sorting structure, 5-roller table chamber, 6-shot blasting machine, 6A-first shot blasting machine, 6B-second shot blasting machine, 6C-third speed reducer, 6D-a fourth impeller head, 7-a pre-separator, 8-a feeding hopper, 9-an air suction pipeline, 10-a terrace, 11-an upper platform, 12-a guardrail, 13-a protective plate and 14-a pill collecting hopper.
A in fig. 1 denotes an electric cabinet; b indicates the lines of the hopper supplying shots to the blasting machine 6.
In fig. 2, the blasting machines 6 include a first blasting machine 6A, a second blasting machine 6B, a third blasting machine 6C, and a fourth blasting machine 6D; the first impeller head 6A, the second impeller head 6B, the third impeller head 6C and the fourth impeller head 6D are arranged on different sections and are arranged in a staggered manner; the first impeller head 6A and the third impeller head 6C are ejected in a left-handed manner, and the second impeller head 6B and the fourth impeller head 6D are ejected in a right-handed manner.
In fig. 4, a denotes a chain; b represents a sizing roller; c represents a cycloidal-pin gear reducer; h denotes shot blast chamber rollers.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings, which are not intended to limit the present invention, but are merely exemplary. While the advantages of the invention will be clear and readily appreciated by the description.
With reference to the accompanying drawings: the special shot blasting cleaning chamber 3 for the rail transit wagon door comprises an isolation chamber 1, a shot blasting chamber 2, a cleaning chamber 3, a shot circulating system 4 and a shot blasting chamber roller way 5;
the shot blasting chamber 2 and the cleaning chamber 3 are sequentially connected; the shot blasting chamber roller way 5 is positioned in the shot blasting chamber 2 and the cleaning chamber 3;
the air suction pipeline 9 is arranged at the upper part of the isolation chamber 1;
the shot material circulating system 4 is respectively connected with the shot blasting chamber 2, the cleaning chamber 3 and the shot collecting hopper; the roller ways of the shot blasting chamber 2 are positioned in the shot blasting chamber 2 and the cleaning chamber 3;
a plurality of impeller heads 6 are arranged in the impeller blasting chamber 2; the plurality of impeller heads 6 are placed in two layers; the impeller head 6 positioned on the upper layer and the impeller head 6 positioned on the lower layer are arranged on different sections and are arranged in a staggered manner; 4 impeller heads 6 are arranged in the impeller blasting chamber 2, and 2 impeller heads are arranged at the upper part and the lower part respectively; in order to prevent the shots of the shot blasting devices 6 from colliding with each other to influence the shot blasting efficiency and prevent the shot blasting devices 6 from wearing too fast caused by opposite blasting, the upper shot blasting devices and the lower shot blasting devices 6 are arranged on different cross sections and staggered by an angle, so that the shot blasting efficiency is improved, the wearing is reduced, the service life of the equipment is greatly prolonged, the maintenance workload is reduced, the downtime caused by maintenance is shortened, the efficiency of the equipment is improved, and the maintenance cost is reduced.
Further, the shot blasting chamber 2 comprises a shot blasting chamber body 2.1 and a shot blasting chamber door; the shot blasting chamber body 2.1 comprises a shot blasting chamber upper body 2.11 and a shot blasting chamber lower body 2.12;
the shot blasting chamber body 2.1 is of a plate welding three-layer structure and is respectively a shell, a lining strip and a guard plate; the shot blasting chamber body 2.1 is sequentially provided with a shell, a lining strip and a guard plate from outside to inside; the shot blasting chamber body 2.1 adopts a plate welding three-layer structure, namely: a housing, a backing strip, and a guard plate; the shell adopts high Cr cast iron with the thickness of 12mm as a protective plate (the hardness is more than HRC 60), and the abrasion plate is fixed on the shot blasting chamber body by a protective plate nut to protect the whole shot blasting chamber body 2.1;
the door of the shot blasting chamber is arranged at the inlet of the shot blasting chamber body 2.1;
the door of the shot blasting chamber is of a lap joint sealing structure, and a guard plate in the 2.1 shot blasting chamber body extends 50mm to a window of the door of the shot blasting chamber; the 2 doors of the shot blasting chamber adopt a lap joint type sealing mode, when the 2.1 guard plate 13 of the shot blasting chamber body is laid, the guard plate 13 extends to the door and window opening by about 50mm, and steel shots are prevented from leaking from the door seam.
Further, an access door is arranged on the shot blasting chamber 2; the detection device controls the opening and closing time and the starting number of the shot blasting devices 6 according to the width and the conveying speed of the workpiece; the protection limit switch and the emergency stop button are respectively arranged on the access door; a plurality of access doors are arranged in the shot blasting chamber 2; each access door is provided with a safety protection limit switch and an emergency stop button for ensuring the safety of the maintainers and timely shutting down when problems occur.
The impeller head 6 in the utility model is the prior art; the flow direction of the shots of the shot blasting device 6 is as follows in sequence: a pill inlet pipe, a pill separating pipe rotating at a high speed, a fixed directional sleeve and an impeller rotating at a high speed are thrown to the surface of a workpiece; the impeller head 6 consists of two parts of impeller head and driving; the shot blasting part comprises a shot separating wheel, a directional sleeve, an impeller (comprising blades) and the like, and the driving part comprises a main shaft, a bearing seat, a belt pulley, a motor and the like; the blades are connected with the impeller disc and automatically fixed by centrifugal force; the pill separating wheel is fixed at the end part of the main shaft by a screw; the directional sleeve is tightly pressed on a side plate of the shell of the shot blasting machine 6 by using the shot inlet pipe, and the position of a window of the directional sleeve is adjusted, so that the shot projecting direction can be changed, and the process requirements are not used.
The step 10 is arranged outside the shot blasting chamber 2; the step 10 is an inclined ladder and is divided into an upper layer and a lower layer; the step 10 positioned at the lower layer is arranged outside the lower body of the shot blasting chamber 2, and the step 10 positioned at the upper layer is arranged outside the upper body of the shot blasting chamber 2; the shot blasting machine can conveniently reach the upper body of the shot blasting chamber 2 through the step 10 positioned on the lower layer, and then reach the upper platform 11 of the shot blasting chamber 2 from the upper body of the shot blasting chamber 2 through the step 10 positioned on the upper layer, so that tools can be conveniently carried and maintained; the upper platform 11 is provided with a guardrail 12 to ensure safety.
Further, two sets of detection devices are arranged at the inlet of the shot blasting chamber 2; two detection devices are arranged at the inlet of the shot blasting chamber 2, and the detection devices can control the opening time and the opening number of the shot blasting device 6 and shot valves thereof by combining with a speed measuring mechanism according to the width of a processed workpiece; when the width of the steel plate to be processed is less than 1 meter, the workpiece enters the shot blasting chamber 2 by approaching one side of the shot blasting chamber body 2.1, and only the sector valves of a pair of shot blasting machines 6 (namely one shot blasting machine A6 positioned above the workpiece and one shot blasting machine A6 positioned below the workpiece) are opened; when the width of the workpiece is more than 1 meter and less than 2 meters, the workpiece enters the shot blasting chamber 2 close to the other side of the shot blasting chamber body 2.1, the workpiece presses down the other group of detection devices, sector valves of two pairs of shot blasting devices 6 (namely two shot blasting devices A6 positioned above the workpiece and two shot blasting devices A6 positioned below the workpiece) are opened simultaneously, and four shot blasting devices 6 work up and down; when the width of the steel plate is larger than 2 meters or profile steel is processed, the workpiece presses down two sets of detection devices, all fan-shaped valves of three pairs of impeller heads 6 (namely three impeller heads A6 positioned above the workpiece and three impeller heads A6 positioned below the workpiece) are opened, and six impeller heads 6 work simultaneously.
Further, a spiral, a nylon rotary brush and a high-pressure blowing pipe are arranged in the cleaning chamber 3;
the high-pressure blowpipe is arranged at the upper part of the cleaning chamber 3;
the groove is spirally arranged at the lower part of the cleaning chamber 3 and is connected with the shot blasting chamber 2;
the nylon rotary brush is positioned between the high-pressure blowpipe and the groove spiral; the nylon rotary brush and the groove spiral are both connected with the worm gear reducer. The nylon rotary brush is of a combined structure and comprises brush filaments and a brush seat; the bending strength of the brush filaments is greater than or equal to 780kg/cm2(ii) a Tensile strength of 500kg/cm or more2(ii) a Unnotched impact strength of 100kg/cm or more2(ii) a Can be used for a long time at below 80 deg.C, and does not generate hair at-60 deg.CThe product is crisp, and the adaptive temperature for short-term use reaches 120 ℃; the brush seat is made of aluminum alloy which is cast by a metal mold under pressure, has no casting defects such as air holes and cracks, and is high in strength and durable.
Further, the cleaning chamber 3 comprises a cleaning chamber upper body 3.1 and a cleaning chamber lower body 3.2; the cleaning chamber upper body 3.1 is positioned at the upper part of the cleaning chamber lower body 3.2; the cleaning chamber upper body 3.1 is connected with a preseparator 7;
the lower body 3.2 of the cleaning chamber is connected with a pill collecting hopper 14; after shot blasting, the shot on the workpiece is swept into the groove screw by the nylon rotary brush, the shot is conveyed to two sides of the shot blasting chamber body 2.1 by the groove screw, and the shot flows into the lower sand slide along the shot blasting chamber body 2.1; blowing the workpiece through high-pressure air of the high-pressure air blowing pipe to ensure that no steel shot and dust remain on the upper surface of the output workpiece; the nylon is revolved the promotion of brush and groove spiral and is adopted the worm gear reduction unit, utilizes the auto-lock performance of worm gear reduction unit to adjust the nylon and revolves the height of brush and groove spiral, and is convenient, swift, reliable.
Further, the pill circulating system 4 comprises a sand sliding hopper 4.1, a bucket elevator 4.2, a top transverse screw 4.3, a pill cleaner 4.4 and a pill dust separating device 4.5; a sand sliding hopper 4.1, a bucket elevator 4.2, a top transverse screw 4.3 and a pill cleaner 4.4 are connected in sequence;
the bucket elevator 4.2 is arranged outside the cleaning chamber 3;
the sand sliding hopper 4.1 is connected with the pill collecting hopper 14; wherein the pill material cleaner 4.4 comprises a pill dust separation device and a pill storage hopper; the pill dust separation device is respectively connected with the pill storage hopper and the waste hopper; the pill-dust separating device comprises a mesh screen separating structure and a wind power separating structure.
Further, the bucket elevator 4.2 comprises a bucket elevator top cover plate 4.21, an upper wheel 4.22, an upper shaft 4.23, a shell, a bucket elevator belt 4.27, a lower wheel 4.25, a lower shaft 4.26, a bucket elevator speed reducer 4.28, a bucket elevator driving chain wheel, a chain and a bucket elevator driven chain wheel;
the shell is of a hollow structure; the upper end of the shell is provided with a bucket lifting top cover plate 4.21, and the lower part of the shell is provided with a bucket lifting plugboard;
the upper wheel 4.22 and the lower wheel 4.25 are both arranged in the shell; wherein, the upper wheel 4.22 is positioned at the upper part of the shell, and the lower wheel 4.25 is positioned at the lower part of the shell; the upper wheel 4.22 is connected with the lower wheel 4.25 through a belt 4.27 for the bucket elevator; the hopper 4.24 is arranged on the belt 4.27 for the bucket elevator and is positioned in the shell;
the sand sliding hopper 4.1 is positioned below the shell side;
the bucket elevator speed reducer 4.28 is positioned outside the shell; the bucket lifting speed reducer 4.28 is connected with a bucket lifting driving chain wheel, and the bucket lifting driving chain wheel is connected with a bucket lifting driven chain wheel through a chain; the bucket lifting driven chain wheel is arranged on the upper shaft 4.23; the upper shaft 4.23 is connected with the upper wheel 4.22, and the lower wheel 4.25 is connected with the lower shaft 4.26.
The hopper 4.24 is provided with a plurality of hoppers; a plurality of hoppers 4.24 are arranged on the belt 4.27 for the bucket elevator at intervals; the shot materials in the sand sliding hopper 4.1 are continuously conveyed to the shot blasting machine through the plurality of hoppers 4.24 to perform shot blasting operation on the workpiece, so that the working efficiency is high, and the time and the labor are saved.
Further, a rubber curtain 1.1 is suspended inside the compartment 1;
the isolation chamber 1 comprises a front isolation chamber and a middle isolation chamber; wear-resistant rubber curtains 1.1 are hung in the front isolation chamber 1 and the middle isolation chamber 1 respectively to prevent the shot materials from splashing and the dust from escaping. The rubber curtain 1.1 is hung and welded on the hook of the isolation chamber 1 chamber body, and is easy to detach and replace.
Furthermore, the lifting mechanism is arranged outside the cleaning chamber 3, so that moving parts and bearings are completely isolated from steel shots and dust, and the problem that the moving mechanism is blocked is thoroughly solved; the lifting mechanism is a bucket elevator 4.2, wherein the bucket elevator 4.2 is of a centrifugal discharging type structure, and a speed measuring device is arranged on a driven wheel of the bucket elevator 4.2; the bucket elevator 4.2 can automatically stop supplying pills to the impeller head 6 when the belt is broken or skidded to cause the normal work; the bucket elevator 4.2 is driven by a bucket elevator 4.2 driving device, and the bucket elevator 4.2 driving device is provided with a stopping mechanism for preventing the bucket elevator 4.2 from reversing due to power failure and other reasons; the belt thickness of the bucket elevator 4.2 is 10mm, the lower part of the elevator bucket is provided with an inspection hole, the top of the elevator bucket is provided with an inspection platform and an observation hole; the sand discharge pipe is made of a seamless steel pipe with the wall thickness of 8 mm.
Further, the charging hopper 8 supplies shots to the shot blasting device 6, the shot blasting device 6 performs shot blasting treatment on the workpieces entering the shot blasting chamber 2, and the treated shots enter two sides of the shot blasting chamber body 2.1 and flow into the sand sliding hopper 4.1 along the shot blasting chamber body 2.1; the shot located in the sand sliding hopper 4.1 is conveyed to a top transverse spiral 4.3 through a bucket elevator 4.2, cleaned through a shot cleaner 4.4 and then enters a charging hopper 8, and then enters a shot blasting machine 6 through a sector distribution valve; a sand sliding hopper 4.1, a bucket elevator 4.2, a top transverse screw 4.3, a pill cleaner 4.4 (a pill dust separation device and a pill storage hopper), a feeding hopper 8 and a shot blasting device 6 form a pill circulating system 4; the pill cleaner 4.4 combines screen separation and wind separation, when the pill slides down along the inclined plate of the upper horizontal spiral section in the pill cleaner 4.4 to form a waterfall shape, the adsorption effect of the horizontal airflow is utilized, the fine dust in the pill is taken away by the air, the pill enters the pill collecting hopper and filters the parts and impurities in the pill through the screen, and two layers of screens are adopted to complete the separation and purification effects in order to clean the impurities; the fine abrasive particles sorted out from the pellet cleaner 4.4 flow out of the lower connecting pipe and are discharged into a waste hopper. In order to ensure the sorting quality, the pill cleaner 4.4 is provided with an air quantity regulating gate and an air quantity regulating baffle.
A branch air pipe system is arranged in the pill material cleaner 4.4; the branch air pipe system comprises a plurality of branch air pipes; the branch air pipe is formed by rolling a steel plate with the thickness of 3 mm; the branch air pipes are connected through flanges, and the joints are sealed through flame-retardant sealing tapes, so that dust is prevented from escaping;
wherein, the shot materials are generally selected from cast steel shots and steel wire cut shots with the size of about 0.8 mm; wherein, when the shot material is added into the shot blasting device 6 for the first time, the ratio of cast steel shots to steel wire cut shots in the shot material is 1:1, thus ensuring the steel shots to have good fluidity; after a period of use, the cast steel shots are consumed and the cut steel wire shots are rounded, and when the cast steel shots are added, the rounded cut steel wire shots are directly added.
Furthermore, the special shot blasting cleaning chamber for the rail transit wagon door is also provided with a dust removal system; the dust removal system comprises a pre-separator 7, a filter cylinder type dust remover, a centrifugal fan, an air suction pipeline and a dust exhaust chimney; when the dust removal system works, dust in the shot blasting chamber 2 and the cleaning chamber 3 is sucked out through the air suction ports of the air suction pipeline 9, is settled through the pre-separator 7 and then passes through the first air suction portFiltering by a filter-drum type dust remover, and finally discharging the waste high altitude; the dust concentration in the waste gas discharged by the dust removal system is less than 80mg/m3；
After being processed by the dust removal system, the dust concentration in the shot blasting chamber 2 and the cleaning chamber 3 is less than 10mg/m3(ii) a Negative pressure devices are arranged in the shot blasting chamber 2 and the cleaning chamber 3, so that certain negative pressure is ensured in the shot blasting chamber 2 and the cleaning chamber 3, and dust is prevented from escaping;
before starting the impeller head 6 and adding the shot materials each time, the dust removal system is started firstly; when the shot blasting machine is stopped every time, the dust removal system continues to operate for a period of time, and dust in the shot blasting chamber 2 and the cleaning chamber 3 is thoroughly removed;
the cleaning mode of the filter cartridge type dust remover is the compressed air back blowing, and the frequency of the compressed air back blowing is controlled by the pulse controller, so that the dust removing effect is ensured.
Furthermore, the special shot blasting cleaning chamber 3 for the rail transit wagon door is internally provided with a roller way of a shot blasting chamber 2; the distance between the roller ways of the shot blasting chamber 2 is reasonably designed, the direct throwing of the steel shots is completely avoided, the secondary rebounding blasting of the shots is reduced to the maximum extent, and the internal maintenance is convenient. In the invention, roller ways of the shot blasting chamber 2 are protected by high Cr cast iron sheaths, for sealing, roller way holes of the shot blasting chamber 2 are sealed by inner and outer connecting plates, an inner plate is welded on a shot blasting chamber body 2.1, and the outer plate is connected with the inner plate through bolts; the self-aligning bearing with the seat adopts a vertical bearing, and the self-aligning bearing with the seat is installed on the bearing seat frame after leaving the shot blasting chamber body 2.1, so that even if dust passes through the protection, the dust cannot enter the self-aligning bearing with the seat to abrade the bearing, thereby protecting the bearing and preventing the bearing from being abraded to the maximum extent.
The end part sheaths are arranged at the two ends of the roller table 2 of the shot blasting chamber of the utility model and are used for protecting the shaft heads; according to the invention, the shaft end of the roller is provided with the sand blocking sheath, so that the shaft end is protected, and the sand blocking sheath and the end part sheath form a closed-cell protection, thereby preventing steel shots from flying out of the shot blasting chamber body 2.1 from the shaft hole, and ensuring that the steel shots cannot hit the shaft end at any time.
The roller way 2 of the shot blasting chamber of the utility model adopts a set of driving motor, which can be linked with the roller way and can move independently, and the whole line can realize stepless speed regulation; when the device normally works, the full-line roller ways are linked and stepless speed regulation is realized through frequency conversion; when the manual control is carried out, each section of roller way can be controlled respectively, so that the adjustment and the maintenance of the roller ways are convenient; when the roller way of the shot blasting chamber 2 is automatically controlled and manually controlled, the speed can be directly adjusted and observed on the main control table.
Other parts not described belong to the prior art.
Claims (7)
1. Special shot blasting cleaning room of rail transit railway freight car door, its characterized in that: comprises an isolation chamber (1), a shot blasting chamber (2), a cleaning chamber (3), a shot circulating system (4) and a shot blasting chamber roller way (5);
the shot blasting chamber (2) and the cleaning chamber (3) are sequentially connected; the shot blasting chamber roller way (5) is positioned in the shot blasting chamber (2) and the cleaning chamber (3);
the air suction pipeline (9) is arranged at the upper part of the isolation chamber (1);
the shot material circulating system (4) is respectively connected with the shot blasting chamber (2), the cleaning chamber (3) and the shot collecting hopper (14);
a plurality of impeller heads (6) are arranged in the impeller blasting chamber (2); the plurality of impeller heads (6) are placed in two layers; the impeller heads (6) positioned on the upper layer and the impeller heads (6) positioned on the lower layer are arranged on different sections and are arranged in a staggered manner.
2. The special shot blasting cleaning chamber for the door of the rail transit railway wagon of claim 1, which is characterized in that: the shot blasting chamber (2) comprises a shot blasting chamber body (2.1) and a shot blasting chamber door;
the shot blasting chamber body (2.1) comprises an upper shot blasting chamber body (2.11) and a lower shot blasting chamber body (2.12);
the shot blasting chamber body (2.1) is of a plate welding three-layer structure; the shot blasting chamber body (2.1) is sequentially provided with a shell, a lining strip and a guard plate from outside to inside;
the door of the shot blasting chamber is arranged at the inlet of the shot blasting chamber body (2.1).
3. The special shot blasting cleaning chamber for the door of the rail transit railway wagon as claimed in claim 2, wherein: the step (10) is arranged outside the shot blasting chamber (2).
4. The special shot blasting cleaning chamber for the door of the rail transit railway wagon as claimed in claim 3, wherein: two sets of detection devices are arranged at the entrance of the shot blasting chamber (2).
5. The special shot blasting cleaning chamber for the door of the rail transit railway wagon as claimed in claim 4, wherein: the cleaning chamber (3) comprises an upper cleaning chamber body (3.1) and a lower cleaning chamber body (3.2); the cleaning chamber upper body (3.1) is positioned at the upper part of the cleaning chamber lower body (3.2); the cleaning chamber upper body (3.1) is connected with a preseparator (7);
the cleaning chamber lower body (3.2) is connected with a pill collecting hopper (14).
6. The special shot blasting cleaning chamber for the door of the rail transit railway wagon as claimed in claim 5, wherein: the pill circulating system (4) comprises a sand sliding hopper (4.1), a bucket elevator (4.2), a top transverse spiral (4.3), a pill cleaner (4.4) and a pill dust separating device (4.5); the sand sliding hopper (4.1), the bucket elevator (4.2), the top transverse spiral (4.3) and the pill cleaner (4.4) are connected in sequence;
the bucket elevator (4.2) is arranged outside the cleaning chamber (3);
the sand sliding hopper (4.1) is connected with the pill collecting hopper (14).
7. The special shot blasting cleaning chamber for the door of the rail transit railway wagon as claimed in claim 6, wherein: the rubber curtain (1.1) is hung inside the isolation chamber (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022873378.6U CN213946095U (en) | 2020-12-02 | 2020-12-02 | Special shot blasting cleaning room for rail transit wagon door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022873378.6U CN213946095U (en) | 2020-12-02 | 2020-12-02 | Special shot blasting cleaning room for rail transit wagon door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213946095U true CN213946095U (en) | 2021-08-13 |
Family
ID=77213680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022873378.6U Expired - Fee Related CN213946095U (en) | 2020-12-02 | 2020-12-02 | Special shot blasting cleaning room for rail transit wagon door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213946095U (en) |
-
2020
- 2020-12-02 CN CN202022873378.6U patent/CN213946095U/en not_active Expired - Fee Related
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210813 |
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| CF01 | Termination of patent right due to non-payment of annual fee |