CN109680664B - Compact rotary trash remover for nuclear power station - Google Patents
Compact rotary trash remover for nuclear power station Download PDFInfo
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- CN109680664B CN109680664B CN201710972543.3A CN201710972543A CN109680664B CN 109680664 B CN109680664 B CN 109680664B CN 201710972543 A CN201710972543 A CN 201710972543A CN 109680664 B CN109680664 B CN 109680664B
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- rack
- nuclear power
- compact rotary
- guide rail
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B15/00—Cleaning or keeping clear the surface of open water; Apparatus therefor
- E02B15/04—Devices for cleaning or keeping clear the surface of open water from oil or like floating materials by separating or removing these materials
- E02B15/06—Barriers therefor construed for applying processing agents or for collecting pollutants, e.g. absorbent
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B15/00—Cleaning or keeping clear the surface of open water; Apparatus therefor
- E02B15/04—Devices for cleaning or keeping clear the surface of open water from oil or like floating materials by separating or removing these materials
- E02B15/10—Devices for removing the material from the surface
Abstract
The invention discloses a compact rotary trash remover for a nuclear power station, which comprises a rack, a driving mechanism, a traction chain, a trash removal rake and a trash removal grid, wherein the trash removal grid is arranged on the rack and stopped at a water channel, the traction chain is arranged on the rack, the trash removal rake is fixed on the traction chain, two chains running in opposite directions of the traction chain are respectively positioned on two sides of the trash removal grid, a channel for the traction chain and the trash removal rake to pass through is arranged between the lower edge of the trash removal grid and the lower bottom surface of the water channel, and the driving mechanism is arranged on the rack and drives the chains to run so as to drive the trash removal rake to move and further catch dirt intercepted by the trash removal grid. The compact rotary type sewage disposal machine for the nuclear power station has the advantages of continuous and uninterrupted sewage disposal process, short sewage disposal time and high sewage disposal efficiency.
Description
Technical Field
The invention relates to a trash remover, in particular to a compact rotary trash remover for a nuclear power station at a water intake of the nuclear power station.
Background
According to the feedback report statistics of important events of the nuclear power operation in the world, more than 100 events related to the blockage of a water taking channel of a nuclear power plant occur from 2004 to 2015, wherein nearly 80% of events cause power reduction or shutdown of a unit, and more than 20% of events directly affect safety-related systems of the nuclear power plant.
The current commonly used trash remover for the water channel of the nuclear power station in China is a steel wire rope traction rake type trash remover which only comprises one trash removing rake, wherein the trash removing rake is dragged by a steel wire rope so as to be capable of descending into the water channel to remove trash on grids, and the trash is lifted back to the upper part of the water channel through the traction of the steel wire rope to be discharged after being removed. In addition, the existing steel wire rope traction scraper bucket type trash remover and the grating are arranged independently, the grating is fixed in the canal, and the grating cannot be taken out of the canal for cleaning and maintenance during maintenance, so that the grating is easily corroded and even blocked.
Aiming at the defects of the trash remover, another trash remover capable of lifting the whole trash remover and the grating into a canal for cleaning is needed, however, the size of a civil engineering opening in the water flow direction of the canal power station is generally only about 1050mm, while the size of the water flow direction of the existing rotary trash remover generally reaches about 1400mm, so that the trash remover is difficult to be suitable for the size of the existing civil engineering opening of the canal of the nuclear power station in transportation.
Disclosure of Invention
The invention aims to provide a compact rotary type trash remover for a nuclear power station, which has the advantages of continuous and uninterrupted trash removal process, short trash removal time, high trash removal efficiency and compact structure.
In order to achieve the above purpose, the compact rotary type trash remover for the nuclear power plant provided by the invention comprises a frame, a driving mechanism, a traction chain, a trash removal rake and a trash removal grid, wherein the trash removal grid is arranged on the frame and stopped at a water channel, the traction chain is arranged on the frame, the trash removal rake is fixed on the traction chain, two chains of the traction chain running in opposite directions are respectively positioned at two sides of the trash removal grid, a channel for the traction chain and the trash removal rake to pass through is arranged between the lower edge of the trash removal grid and the lower bottom surface of the water channel, and the driving mechanism is arranged on the frame and drives the traction chain to run so as to drive the trash removal rake to move and further pick up dirt intercepted by the trash removal grid.
Compared with the prior art, the frame is provided with the traction chain, the traction chain is provided with the dirt removing rakes, and the traction chain can be provided with a plurality of dirt removing rakes, so that the traction chain is driven by the driving mechanism to simultaneously drive the dirt removing rakes to circularly move along the movement track of the traction chain, thereby realizing rotary work, enabling the dirt removing rakes to sequentially and continuously pass through the dirt blocking grating, completing actions of lifting, overturning and the like, and realizing continuous dirt removal on the dirt blocking grating; therefore, the compact rotary type trash remover of the nuclear power station continuously does not stop in the trash removal process, and the multiple trash removal scraper buckets continuously remove trash so that the trash removal time is short, and the trash removal efficiency is greatly improved. In addition, the trash rack is arranged in the middle of the traction chain, so that the space in the middle of the traction chain is effectively utilized, the size of the lower part of the compact rotary trash remover of the nuclear power station in the water flow direction can be reduced, the whole structure is very compact, and the trash rack is suitable for the size of the existing civil opening of the water channel of the nuclear power station.
Preferably, the compact rotary type trash remover for the nuclear power plant further comprises a flushing device, the flushing device is arranged on the rack and located on one side of the traction chain, and after the trash removing rake is turned over, a water spraying port of the flushing device is aligned with the trash removing rake to spray water for cleaning.
Preferably, the flushing device comprises a water spraying pipe, the water spraying pipe is arranged along the length direction of the dirt cleaning rake, and the water spraying ports are arranged along the length direction of the water spraying pipe.
Preferably, the flushing device further comprises a fixing piece, the fixing piece is fixed on the rack, and the water spraying pipe is fixed on the fixing piece.
Preferably, the frame is provided with a track, and the traction chain is arranged in the track and runs along the track. The track can guide the traction chain to run, so that a transportation path can be provided for the trash removal scraper, and the running stability of the traction chain can be ensured.
Preferably, the driving mechanism comprises a motor and a first driven sprocket, the first driven sprocket is meshed with the traction chain, and the motor drives the first driven sprocket to rotate.
Specifically, the driving mechanism further comprises a driving sprocket, a second driven sprocket and a driving chain, the first driven sprocket and the second driven sprocket are coaxially arranged through the main shaft, the driving sprocket is connected with the output end of the motor, and the driving chain is wound between the driving sprocket and the second driven sprocket.
Specifically, the compact rotary trash remover for the nuclear power station further comprises a chain tensioning mechanism, a sliding block of the chain tensioning mechanism, a screw rod and a nut, wherein the first driven chain wheel is arranged on the sliding block, the sliding block is slidably arranged on the rack, one end of the screw rod is fixedly connected with the sliding block, and the nut is pivoted on the rack and is in threaded connection with the other end of the screw rod. Chain straining device can carry out position control to first driven sprocket to prevent that the long run of traction chain produces not hard up, is favorable to decontaminating.
Preferably, the trash removal rake is provided with rake teeth, the trash rack is provided with gaps in a strip shape, and the rake teeth are inserted into the gaps. By inserting the rake teeth into the gaps of the trash rack, the trash embedded into the gaps and the sides of the trash rack can be more effectively cleaned.
Preferably, the gap width of the trash rack is 20mm to 30 mm. Through will block the clearance of dirty grid and set for narrowly, on the basis that does not influence the water intaking, can intercept litopenaeus japonicus, jellyfish etc. less marine organism of somatotype more effectively, avoid causing the influence to unit steady operation and nuclear safety.
Preferably, the rollers of the traction chain are provided with connecting interfaces, a fixing member is connected between two adjacent connecting interfaces of the traction chain, and the dirt removing rake is fixed on the fixing member. Through the connecting interface, the dirt removing scraper bucket on the traction chain can be additionally arranged or reduced as required, so that the whole equipment can operate more flexibly, and the dirt removing capability of the equipment can be exerted to the maximum extent.
Preferably, the two ends of the dirt removing scraper bucket are provided with the traction chains, and a stabilizer bar is connected between the two traction chains. The stabilizer bar can prevent the traction chain from shifting or shaking in the movement process, and prevents rake teeth of the dirt removing rake bucket from rubbing and scraping the dirt blocking grating.
Preferably, a guide rail mechanism is provided between the frame and the side wall of the canal so that the frame slides relative to the side wall of the canal. Through setting up guide rail mechanism can make whole nuclear power station compact rotation trash cleaning machine can upwards hang out relatively the ditch to be convenient for install and carry out daily maintenance, it is convenient to maintain.
Specifically, the guide rail mechanism includes a first guide rail and a first roller, the first guide rail is fixed to the side wall of the ditch, the first roller is pivoted to the side wall of the rack, and the first roller is in rolling contact with the first guide rail.
More specifically, the guide rail mechanism further comprises a second guide rail and a second roller, the second guide rail is fixed on the side wall of the ditch, the second roller is pivoted on the side wall of the rack, the second roller is in rolling contact with the second guide rail, the rolling directions of the second roller and the first roller are the same, and the pivoting shafts are perpendicular to each other. The first idler wheel and the second idler wheel are arranged in a mutually perpendicular mode, so that an interlocking effect can be achieved, and the compact rotary trash remover of the whole nuclear power station is more stable to install.
More specifically, the guide rail mechanism further comprises a third guide rail, the third guide rail is fixed on the side wall of the rack, and the first roller is pivoted to the third guide rail.
Preferably, the compact rotary type trash remover for the nuclear power plant further comprises a trash removal groove, the trash removal groove is arranged above the water channel, and the trash removal scraper bucket rotates along the traction chain and turns over to discharge the trash into the trash removal groove.
Preferably, the compact rotary type trash remover of the nuclear power plant further comprises an overload protection device arranged at the output end of the driving mechanism. The compact rotary type sewage disposal device can ensure that the compact rotary type sewage disposal device of the nuclear power station can run more safely and stably.
Drawings
Fig. 1 is a perspective view of a compact rotary type trash remover for a nuclear power plant according to the present invention.
Fig. 2 is a side view of the compact rotary type trash remover for a nuclear power plant according to the present invention, which is installed at a ditch.
Fig. 3 is a front view of the compact rotary type trash remover for a nuclear power plant according to the present invention, which is installed at a ditch.
Fig. 4 is a structural view of a trash rack and a trash removal rake of the compact rotary type trash remover for a nuclear power plant according to the present invention.
Fig. 5 is a structural view of a driving mechanism of a compact rotary type trash remover for a nuclear power plant according to the present invention.
Fig. 6 is a structural view of a cross section of a rail mechanism of a compact rotary type trash remover for a nuclear power plant according to the present invention.
Detailed Description
In order to explain technical contents, structural features, and effects achieved by the present invention in detail, the following detailed description is given with reference to the embodiments and the accompanying drawings.
As shown in fig. 1 and 2, the compact rotary type trash remover 100 for a nuclear power plant according to the present invention includes a frame 1, a driving mechanism 2, a drag chain 3, a trash removal rake 4, and a trash rack 5. The trash rack 5 is arranged on the frame 1 and is blocked at the position of the ditch 200, the traction chain 3 is arranged on the frame 1, the trash-cleaning rake 4 is fixed on the traction chain 3 and transversely arranged, the length of the trash-cleaning rake 4 is basically equal to the width of the trash rack 5, and the driving mechanism 2 is arranged on the frame 1 and drives the traction chain 3 to operate so as to drive the trash-cleaning rake 4 to move and further fish up the dirt intercepted by the trash rack 5. Specifically, the following:
referring to fig. 3 and 4, the trash rack 5 is transversely intercepted in the direction of the entrance and exit of the canal 200; the drag chain 3 is a revolving type, and thus can be divided into two parts of chains, the first part of the chains runs upwards, the second part of the chains runs downwards, the trash rack 5 of the embodiment is arranged between the two chains running in opposite directions, that is, the two chains running in opposite directions are respectively arranged at two sides of the trash rack 5, and a channel 203 for the drag chain 3 and the trash rack 4 to pass through is arranged between the lower edge of the trash rack 5 and the lower bottom surface of the ditch 200; the upper edge of the trash rack 5 extends to the upper top surface of the canal 200 and the upper surface of the work platform 300. Therefore, the trash rack 5 of the embodiment is not a full-section load-blocking, so that sufficient seawater can be ensured to pass through, and the occurrence of unit cold chain loss accidents caused by complete blockage due to too small gaps 51 of the trash rack 5 is avoided. The trash rack 5 is formed by welding and fixing a plurality of strip-shaped bars together through a fixing plate, the trash rack 5 is provided with a strip-shaped gap 51 arranged along the vertical direction, and the gap 51 continuously extends from the lower edge of the trash rack 5 to the upper edge of the trash rack 5. The width of the gap 51 of the trash rack 5 ranges from 20mm to 30 mm. The width of the gap 51 of the trash rack 5 of this embodiment is set to 25 mm. By setting the gap 51 of the trash rack 5 to be narrower, marine organisms can be intercepted more effectively on the basis of not influencing the passing of seawater, and the influence on the stable operation and nuclear safety of a unit is avoided.
As shown in fig. 2, two inner sides of the frame 1 are respectively provided with a rotary rail 11, a lower section of the rail 11 is vertically arranged, and an upper section of the rail 11 is arc-shaped; and one traction chain 3 is arranged in each track 11 respectively, and the traction chain 3 runs along the track 11. The rail 11 is used for guiding the operation of the drag chain 3, so that a transportation path can be provided for the trash removal rake 4, and the stability of the operation of the drag chain 3 can be ensured. The lower part of the frame 1 is in the canal 200, i.e. submerged, and the trash rack 5 is arranged on the lower part of the frame 1, and the upper part of the frame 1 is above the canal 200, i.e. extends to the working platform 300.
Referring to fig. 1 and 5, the driving mechanism 2 is disposed on the upper portion of the frame 1, and includes a motor 21, two first driven sprockets 22, a driving sprocket 23, a second driven sprocket 24, and a driving chain 25, the first driven sprockets 22 are respectively located on two sides of the frame 1 and engaged with the traction chain 3, and the two first driven sprockets 22 are connected by a main shaft 26 to achieve synchronous rotation. The second driven sprocket 24 is coaxially disposed with the first driven sprocket 22 through the main shaft 26, the driving sprocket 23 is connected to an output end of the motor 21, and the driving chain 25 is wound between the driving sprocket 23 and the second driven sprocket 24. During operation, the motor 21 rotates and drives the driving sprocket 23, the driving sprocket 23 drives the second driven sprocket 24 to rotate through the driving chain 25, the second driven sprocket 24 rotates and drives the two first driven sprockets 22 to synchronously rotate through the main shaft 26, and the two first driven sprockets 22 drive the traction chain 3 to operate. In the present embodiment, the driving sprocket 23, the second driven sprocket 24, and the driving chain 25 mainly perform the deceleration function, and therefore, other deceleration mechanisms may be used instead.
The output end of the driving mechanism 2 is also provided with an overload protection device (not shown). The compact rotary type trash remover 100 for the nuclear power plant can be ensured to run more safely and stably. In the embodiment, the mechanical overload protection device adopts a safety pin structure, once the trash remover is overloaded in the running process, the safety pin is cut off, the limit switch is triggered to act, an alarm signal is sent, the motor 21 stops running, and the overload protection effect is further achieved.
Referring to fig. 5, the compact rotary trash remover 100 for a nuclear power plant further includes a chain tensioning mechanism 6, a slide block 61, a screw 62 and a nut 63 of the chain tensioning mechanism 6, wherein the first driven sprocket 22 is disposed on the slide block 61, the slide block 61 is slidably disposed on the frame 1, one end of the screw 62 is fixedly connected with the slide block 61, and the nut 63 is pivotally connected to the frame 1 and is in threaded connection with the other end of the screw 62. The chain tensioning mechanism 6 can adjust the positions of the first driven sprocket 22 and the second driven sprocket 24, so that the traction chain 3 and the driving chain 25 are prevented from loosening due to too long operation time, and cleaning is facilitated.
Referring to fig. 4, the traction chain 3 is a bush roller chain, one side of the roller of the traction chain 3 is provided with a connecting interface 31, a fixing member 32 is connected between two adjacent connecting interfaces 31, and the dirt removing rake 4 is fixed to the fixing member 32, so that a plurality of dirt removing rakes 4 are arranged on the same traction chain 3. Through the connecting interface 31, the dirt cleaning scraper bucket 4 on the traction chain 3 can be additionally arranged or reduced according to the requirement, so that the whole equipment can operate more flexibly, and the dirt cleaning capability of the equipment can be exerted to the maximum extent. The dirt removing rake 4 has rake teeth 41, the rake teeth 41 of the dirt removing rake 4 face the inner side of the drag chain 3, and the rake teeth 41 are inserted into the gaps 51 of the dirt barrier 5 but do not contact with the dirt barrier 5. By inserting the rake teeth 41 into the gaps 51 of the trash rack 5, the trash embedded in the gaps 51 and the sides of the trash rack 5 can be more effectively cleaned. And a stabilizer bar is connected between the two traction chains 3. The stabilizer bar can prevent the traction chain 3 from shifting or shaking in the moving process, and prevent the rake teeth 41 of the dirt-removing rake 4 from rubbing and scraping the dirt-blocking grating 5. In addition, a baffle is provided above the drag chain 3 at the upper part of the frame 1 to prevent dirt from falling onto the drag chain 3 when unloading.
As shown in fig. 6, a guide rail mechanism 7 is provided between the frame 1 and the side wall of the canal 200, so that the frame 1 slides relative to the side wall of the canal 200. Specifically, the rail mechanism 7 includes a first rail 71, a first roller 72, a second rail 73, a second roller 74, and a third rail 75, and the arrangement direction of the first rail 71, the second rail 73, and the third rail 75 is a vertical direction. The first rail 71 is secured to two opposing side walls 201 of the channel 200, the second rail 73 is secured to the other side wall 202 of the channel 200 between the two side walls to which the first rail 71 is mounted, and the notch of the first rail 71 is oriented perpendicular to the notch of the second rail 73. The third guide rail 75 is fixed on the side wall of the rack 1, the third guide rail 75 is divided into two setting directions, and the direction of the notch of the third guide rail 75 corresponding to the first guide rail 71 is opposite to the notch of the first guide rail 71; the first roller 72 is pivotally connected to the third rail 75 corresponding to the first rail 71, and the first roller 72 is in rolling contact with the first rail 71. The notch direction of the third rail 75 corresponding to the second rail 73 is opposite to the notch direction of the second rail 73; the second roller 74 is pivotally connected to the third rail 75 corresponding to the second rail 73, and the second roller 74 is in rolling contact with the third rail 75. The second roller 74 and the first roller 72 have the same rolling direction but perpendicular pivoting axes. The first roller 72 and the second roller 74 are arranged perpendicular to each other, so that an interlocking effect can be achieved, and the compact rotary type trash remover 100 of the whole nuclear power plant can be installed more stably. Through the arrangement of the guide rail mechanism 7, the compact rotary type trash remover 100 of the whole nuclear power station can be lifted out relative to the water channel 200, so that the installation and the daily maintenance are convenient, and the maintenance is convenient.
As shown in fig. 2, the compact rotary type sewage disposal apparatus 100 for a nuclear power plant further includes a sewage disposal tank 8, the sewage disposal tank 8 is disposed on the work platform 300 above the water channel 200, and the sewage disposal rake 4 rotates along the drag chain 3 to turn over and then discharges the sewage into the sewage disposal tank 8.
As shown in fig. 2, the compact rotary type sewage disposal machine for nuclear power plants further includes a flushing device 9, the flushing device 9 is disposed on the frame 1 and located on one side of the drag chain 3, and after the sewage disposal rake 4 is turned over, a water jet of the flushing device 6 is aligned with the sewage disposal rake 4 to perform water jet cleaning. The flushing device 9 comprises a water spraying pipe 91 and a fixing member 92, wherein the fixing member 92 is fixed on the frame 1, and the water spraying pipe 91 is fixed on the fixing member 92. The water spray pipe 91 is arranged along the length direction of the dirt removing rake 4, and the water spray ports are arranged along the length direction of the water spray pipe 91.
In summary, the operation principle of the compact rotary type trash remover 100 for a nuclear power plant according to the present invention will be described in detail as follows:
when cleaning, the motor 21 is started to drive the first driven sprocket 22 to rotate, the first driven sprocket 22 drives the traction chain 3 to run along the track 11, at this time, the dirt removing rake 4 located at the lower edge of the dirt barrier 5 moves upward along with the drag chain 3, the teeth 41 of the dirt removing rake 4 are inserted into the gaps 51 of the dirt barrier 5, thereby scooping up the filth attached to the side of the trash rack 5 and located in the gap 51, the filth ascends along with the trash removal rake 4, when the dirt-removing rake 4 is lifted out of the canal 200 and then moves along the arc-shaped direction of the upper part of the track 11, at this time, the dirt-removing rake 4 starts to turn over, so that the filth is discharged into the filth-removing groove 8 of the lower working platform 300, and at the same time, the flushing device 9 flushes and cleans the bottom of the filth-removing rake 4, thereby flushing the filth hung on the rake teeth 41. Then the dirt-removing rake 4 moves downwards along with the operation of the traction chain 3, finally turns to the position which is originally positioned at the lower edge of the dirt-blocking grating 5 and continues to carry out the next round of dirt removal. Through continuous rotation, the trash rack 5 is cleaned quickly.
Compared with the prior art, the frame 1 is provided with the traction chain 3, the traction chain 3 is provided with the dirt removing rakes 4, and the traction chain 3 can be provided with a plurality of dirt removing rakes 4, so that the traction chain 3 is driven by the driving mechanism 2 to simultaneously drive the dirt removing rakes 4 to circularly move along the motion track of the traction chain 3, so that rotary work is realized, the dirt removing rakes 4 sequentially and continuously pass through the dirt blocking grating 5, the actions of lifting, overturning and the like are completed, and the continuous dirt removal of the dirt blocking grating 5 is realized; therefore, the compact rotary type trash remover 100 of the nuclear power plant continuously cleans the trash without stopping, and the multiple trash removing rakes 4 continuously clean the trash to ensure that the trash removing time is short, so that the trash removing efficiency is greatly improved. In addition, the trash rack 5 is arranged on the rack 1, and the guide rail mechanisms 7 are arranged on two sides of the rack 1, so that the trash rack 5 can move out of the ditch 200 along with the rack 1, maintenance personnel can conveniently maintain the trash cleaning machine and maintain the trash rack 5, and the service life of the trash rack 5 is effectively prolonged. In addition, the trash rack 5 is arranged in the middle of the traction chain 3, so that the space in the middle of the traction chain 3 is effectively utilized, the size of the water flow direction of the lower part of the compact rotary trash remover 100 of the nuclear power station can be reduced, the whole structure is very compact, and the compact rotary trash remover is suitable for the size of the existing civil open pore of the water channel for the nuclear power station.
The above disclosure is only a preferred embodiment of the present invention, and certainly should not be taken as limiting the scope of the present invention, which is therefore intended to cover all equivalent changes and modifications within the scope of the present invention.
Claims (11)
1. The utility model provides a nuclear power station compact rotation trash remover which characterized in that: the trash rack comprises a rack, a driving mechanism, traction chains, a trash removal rake and a trash rack, wherein the trash rack is arranged on the rack and is blocked at a ditch; the trash removal scraper bucket is fixed on the traction chain, two chains of the traction chain running in opposite directions are respectively positioned on two sides of the trash rack, and a channel for the traction chain and the trash removal scraper bucket to pass through is arranged between the lower edge of the trash rack and the lower bottom surface of the ditch, so that enough seawater can still pass through when the trash rack is completely blocked; the driving mechanism is arranged on the rack and drives the traction chain to operate so as to drive the dirt removing rake to move and further drag and fetch the dirt intercepted by the dirt blocking grating; the frame is provided with a guide rail mechanism so as to enable the frame to be slidable relative to the side wall of the water channel; the guide rail mechanism comprises a first guide rail and a first roller, the first guide rail is fixed on the side wall of the water channel along the vertical direction, the first roller is pivoted on the side wall of the rack, and the first roller is in rolling contact with the first guide rail; the roller of the traction chain is provided with a connecting interface, a fixing piece is connected between two adjacent connecting interfaces of the traction chain, and the dirt removing rake is fixed on the fixing piece; the guide rail mechanism further comprises a second guide rail, a second roller and a third guide rail, the second guide rail is fixed on the side wall of the water channel, the second roller is pivoted on the side wall of the rack, the second roller is in rolling contact with the second guide rail, the rolling directions of the second roller and the first roller are the same, and pivoting shafts are vertical to each other; the third guide rail is fixed on the side wall of the rack, and the first roller is pivoted on the third guide rail.
2. The compact rotary type trash remover for nuclear power plants as claimed in claim 1, wherein: the compact rotary type trash remover for the nuclear power station further comprises a flushing device, wherein the flushing device is arranged on the rack and located on one side of the traction chain, and after the trash removing scraper bucket is turned over, a water spray nozzle of the flushing device is aligned with the trash removing scraper bucket to spray water for cleaning.
3. The compact rotary type trash remover for nuclear power plants as claimed in claim 2, wherein: the flushing device comprises a water spraying pipe, the water spraying pipe is arranged along the length direction of the dirt cleaning rake, and the water spraying ports are arranged along the length direction of the water spraying pipe.
4. The compact rotary type trash remover for nuclear power plants as claimed in claim 3, wherein: the flushing device further comprises a fixing piece, the fixing piece is fixed on the rack, and the water spraying pipe is fixed on the fixing piece.
5. The compact rotary type trash remover for nuclear power plants as claimed in claim 1, wherein: the driving mechanism comprises a motor and a first driven chain wheel, the first driven chain wheel is meshed with the traction chain, and the motor drives the first driven chain wheel to rotate.
6. The compact rotary type trash remover for nuclear power plants as claimed in claim 5, wherein: the driving mechanism further comprises a driving chain wheel, a second driven chain wheel and a driving chain, the first driven chain wheel and the second driven chain wheel are coaxially arranged through the main shaft, the driving chain wheel is connected with the output end of the motor, and the driving chain is wound between the driving chain wheel and the second driven chain wheel.
7. The compact rotary type trash remover for nuclear power plants as claimed in claim 5, wherein: the compact rotary trash remover for the nuclear power station further comprises a chain tensioning mechanism, a sliding block of the chain tensioning mechanism, a screw rod and a nut, wherein the first driven sprocket is arranged on the sliding block, the sliding block is slidably arranged on the rack, one end of the screw rod is fixedly connected with the sliding block, and the nut is pivoted on the rack and is in threaded connection with the other end of the screw rod.
8. The compact rotary type trash remover for nuclear power plants as claimed in claim 1, wherein: the trash removal scraper bucket is provided with scraper teeth, the trash rack is provided with strip-shaped gaps, and the scraper teeth are inserted into the gaps.
9. The compact rotary type trash remover for nuclear power plants as claimed in claim 1, wherein: the gap width of the trash rack is 20mm to 30 mm.
10. The compact rotary type trash remover for nuclear power plants as claimed in claim 1, wherein: the compact rotary type trash remover for the nuclear power station further comprises a trash removing groove, wherein the trash removing groove is formed in the upper portion of the water channel, and the trash removing scraper bucket rotates along the traction chain and unloads dirt into the trash removing groove after overturning.
11. The compact rotary type trash remover for nuclear power plants as claimed in claim 1, wherein: the compact rotary trash remover for the nuclear power station further comprises an overload protection device arranged at the output end of the driving mechanism.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710972543.3A CN109680664B (en) | 2017-10-18 | 2017-10-18 | Compact rotary trash remover for nuclear power station |
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| CN201710972543.3A CN109680664B (en) | 2017-10-18 | 2017-10-18 | Compact rotary trash remover for nuclear power station |
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| CN109680664A CN109680664A (en) | 2019-04-26 |
| CN109680664B true CN109680664B (en) | 2022-01-11 |
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| CN112064604B (en) * | 2020-09-18 | 2022-01-18 | 四川省紫坪铺开发有限责任公司 | Grid type dredging device for hydraulic engineering |
| CN115818748A (en) * | 2023-02-17 | 2023-03-21 | 中国水产科学研究院渔业工程研究所 | Rotary type grating sewage disposal device for sewage treatment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2457120Y (en) * | 2000-09-12 | 2001-10-31 | 秘军海 | Rotary dirt cleaner |
| CN201520965U (en) * | 2009-09-28 | 2010-07-07 | 贾乃波 | Rotary trash-cleaning machine |
| CN102887553B (en) * | 2012-09-19 | 2014-01-22 | 南京蓝深制泵(集团)股份有限公司 | Rotary filter screen type bar screen cleaner |
| CN204676511U (en) * | 2015-04-16 | 2015-09-30 | 江苏省水利机械制造有限公司 | A kind of transmission traction mechanism of trash rake |
| CN106284257A (en) * | 2015-06-05 | 2017-01-04 | 江苏立业环境科技有限公司 | A kind of swinging grilling trash remover |
| CN205776129U (en) * | 2016-05-23 | 2016-12-07 | 赣州黄金沃特发电设备有限公司 | trash |
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2017
- 2017-10-18 CN CN201710972543.3A patent/CN109680664B/en active Active
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