CN212426579U - Dust collecting device of steel rail grinding wagon and steel rail grinding wagon - Google Patents

Abstract

The utility model relates to a rail grinding wagon dust collecting device and rail grinding wagon, rail grinding wagon left and right sides symmetrical arrangement left side dust collecting unit and right side dust collecting unit, left side dust collecting unit and right side dust collecting unit inhale dusty gas from the grinding position department of rail grinding wagon bottom respectively, and the clean gas of both sides discharge is respectively followed to the rethread from rail grinding wagon, realizes collecting and discharging the dust of rail left side track and rail right side track. The utility model discloses a left side dust collecting unit and right side dust collecting unit of bilateral symmetry arrangement absorb the dust and the spark that left rail and right rail produced of polishing respectively. Under the limited, the strict condition of vehicle limit requirement of rail grinding wagon automobile body inner space, adopt the utility model discloses a dust collector's rail grinding wagon can realize leaving the demand of pavement in the middle of the carriage is inside, can satisfy dust collector load evenly distributed's in the rail grinding wagon requirement again.

Description

Dust collecting device of steel rail grinding wagon and steel rail grinding wagon

Technical Field

The utility model relates to a large-scale road maintaining mechanical design of railway and manufacturing technical field, concretely relates to rail grinding wagon dust collecting device and have this dust collecting device's rail grinding wagon.

Background

In the prior art, dust collecting devices, especially dust collecting devices for large railway maintenance machines, are mostly in the form of cyclone dust collectors, and are arranged in an arrangement structure that one set of devices simultaneously absorbs dust on left and right rails, such as:

chinese utility model patent publication No. CN208943662U provides a cyclone centrifugal dust collector for rail grinding wagon, its structure adopts: the grinding machine comprises a grinding machine main frame, a first motor, a first fan, a second motor, a second fan, a third air duct, a first spiral separation barrel, a second spiral separation barrel, a first cross rod, a second cross rod, a screw rod type automatic ash discharger and a screw rod type automatic ash discharger, wherein the first motor, the first fan, the second fan, the first motor, the second fan and the screw rod type automatic ash discharger are respectively fixedly installed on a left end base of the grinding machine main frame, air outlets of the first fan and the second fan are connected with an air inlet of a first air outlet pipeline, air inlet and air outlet of the first fan and the second fan are respectively fixedly installed with air outlets of the upper end and the lower end of the second air outlet pipeline, the third air duct is fixedly installed at the top end of a T-shaped air inlet pipeline, barrel openings of the top ends of the first spiral separation barrel and the second spiral separation barrel are installed with air inlets matched.

Chinese patent application publication No. CN108057302AD discloses a cyclone filter cartridge combined dust collecting device, which adopts: the cyclone separator in the primary filtering device is of a combined structure of a cylindrical cavity and a circular truncated cone cavity, one end of a first air inlet channel is connected with the first through hole, and the other end of the first air inlet channel is connected with the steel rail polishing device through a connecting corrugated pipe; a plurality of detachable filter cylinders are uniformly arranged in a filter cavity in the secondary filter device, the bottom of the filter cavity is connected with a second dust collecting box, and the filter cavity is communicated with the cylindrical cavity through a second air inlet pipeline; the power device is installed outside the secondary filter device and is used for providing power for the flow of smoke and dust gas, and after the smoke and dust gas generated in the process of polishing the subway rail is purified by the primary separation device and the secondary separation device, solid particles are eliminated, the temperature is reduced, and the structural damage of the high-temperature smoke and dust gas to a communication cable or an air conditioning device in a tunnel is avoided.

Chinese patent application publication No. CN107081032A provides a dust removing device, comprising: the dust-gas separation part comprises a primary separation air passage and a fine separation air cavity which are communicated with each other, and the fine separation air cavity is provided with a plurality of filter cylinders; a filter cartridge cleaning part which is filled with high-pressure gas and controls the high-pressure gas to spray out through a pulse valve, and a pulse controller controls the opening/closing of the pulse valve to clean the filter cartridge; and the dust collecting part is used for collecting solid dust. The clean room is communicated with the fine separation air cavity through a filter cylinder and internally provided with a filter cylinder cleaning part; a power part communicated with the clean room; the device is through the mist that contains smoke and dust impurity of initial separation and smart separation, and the abrasive dust that the in-process produced of rail is polished is separated by the cooling and is collected, has avoided air pollution.

The utility model discloses a chinese utility model patent with publication number CN201586450U provides a special dust collecting device for a rail grinding train, which comprises a filtering device, a power device and an air inlet device, wherein the air inlet device comprises an air inlet channel and a fire-proof valve, one end of the air inlet channel is positioned at the rail, the other end of the air inlet channel is connected with the filtering device, and the fire-proof valve is arranged in the air inlet channel; the filtering device comprises a box body, a filter bag, a blowing device and a dust containing box. The device has compact structure, can not only adapt to the special characteristics of large ventilation quantity and relatively narrow design space of the locomotive, but also meet the requirement of the whole locomotive on the filtering precision of the dust collector; the filter box is of a side-inserted flat bag structure, the high-pressure reverse-spraying type self-cleaning spraying device is used for ensuring the work, and the Maita filter bag is high in fire resistance and suitable for filtering high-temperature dust generated by a grinding train.

Chinese utility model patent publication No. CN206444384U provides a dust collecting device for a rail milling and grinding work vehicle, which comprises an air inlet pipe, a cyclone dust collector, a cartridge dust collector and an air outlet channel, wherein dust-containing gas is sequentially filtered by the cyclone dust collector and the cartridge dust collector, and the bottoms of the cyclone dust collector and the cartridge dust collector are respectively provided with a first dust collecting piece and a second dust collecting piece for collecting dust; the dust removal fan in the filter cartridge dust remover of the device performs negative pressure suction, so that the dust-containing gas is filtered more thoroughly, and the path of the dust-containing gas entering the filter cartridge dust remover is prolonged to ensure that the dust-containing gas is cooled more fully.

The chinese utility model patent with publication number CN204282145U provides a dust collecting device of a multi-head rail grinding wagon, which comprises a dust collecting box body, a ventilator, a motor, a filter, a pulse back-blowing automatic ash cleaning system and a flame-proof safety protection system; the device has the automatic deashing function of pulse blowback and fire prevention safety protection function, is applicable to the concentrated collection that the train of polishing produced the dust at the operation in-process of the rail of polishing.

As a key part of railway operation, rail is used from the beginning of laying, and as time goes on, due to interaction between wheel rails, surface and even inside of the rail are damaged by cracks, corrugation, scratches, fat edges and the like. Aiming at different diseases appearing at different periods, a steel rail grinding wagon is usually adopted for online grinding, so that the aims of improving the matching relation of wheel rails, improving the running quality of trains, prolonging the service life of the steel rails and the like are fulfilled.

During the online grinding operation of the steel rail, a large amount of dust is generated and is accompanied with phenomena such as spark splashing and the like. In order to collect dust and sparks generated in the rail grinding process, a dust collecting device is required to be matched with the rail grinding wagon.

The arrangement structure of the existing dust collecting device is mainly that one set of dust collecting unit absorbs dust and sparks splashed by left and right steel rails at the same time, and has the problems of low dust collecting efficiency, excessive occupation of the internal space of the steel rail grinding wagon, high dust discharging labor intensity, poor environmental protection performance and the like; dust and sparks generated in the polishing process are usually captured by a multistage filtering system with a huge structure, or sparks are eliminated by utilizing the advantage of longer pipelines, so that the rail polishing machine is not suitable for a rail polishing machine which has a compact integral structure and requires arrangement of corridors in a carriage.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned technical problem that exists among the prior art, the utility model provides a rail grinding wagon dust collecting device has characteristics such as compact structure, collection efficiency height, feature of environmental protection can be good and high-efficient rail grinding wagon inner space that utilizes, and the rail grinding wagon that has adopted this dust collecting device polishes the operation environmental protection high-efficiently on line.

In order to achieve the above purpose, the present invention adopts the following technical solution.

Along the driving direction of the rail grinding wagon, a left dust collecting unit and a right dust collecting unit are symmetrically arranged on the left side and the right side of the rail grinding wagon. The right side of the steel rail grinding wagon in the traffic direction is defined as a right side dust collecting unit, and the left side is defined as a left side dust collecting unit. The left dust collecting unit and the right dust collecting unit respectively suck dust-containing gas from the grinding position at the bottom of the steel rail grinding wagon, and then respectively discharge clean gas from the left side and the right side of the steel rail grinding wagon, so that dust collection and discharge of a left railway track and a right railway track are realized.

The utility model provides a rail grinding wagon dust collecting device, including left side dust collecting unit and right side dust collecting unit, two sets of dust collecting unit along rail grinding wagon driving direction symmetrical arrangement in the rail grinding wagon left and right sides.

Preferably, the left dust collecting unit or the right dust collecting unit comprises a dust conveying pipeline and spark capturing system, a pulse reverse blowing device, a silencer, a centrifugal fan, a dust collecting and filtering device, a spiral conveying ash discharging device, a pipeline type spark catcher, a combined conveying pipeline, a box body, a vertically-installed filter cylinder, an ash bucket, a vibration hammer, a spiral conveyor and a knife-shaped gate valve, and the dust conveying pipeline and the spark capturing system, the silencer, the centrifugal fan, the dust collecting and filtering device and the spiral conveying ash discharging device of the left dust collecting unit or the right dust collecting unit are assembled and connected with the rail grinding wagon.

In any of the above embodiments, preferably, the dust transporting pipe and spark capturing system includes a pipe type spark capturing device and a combined transporting pipe.

In any of the above technical solutions, preferably, the pipe type spark arrester is embedded in the combined conveying pipe and connected to the air inlet end of the dust collecting and filtering device.

In any of the above technical solutions, preferably, the pipe type spark arrester is disposed at a terminal end of the combined conveying pipe, and is connected with an air inlet end of the dust collecting and filtering device.

In any of the above technical solutions, preferably, the duct type spark arrestor has a dust falling duct arranged in the belly.

In any of the above technical solutions, preferably, a pulse back-blowing device is disposed on a connection pipeline between the dust collecting and filtering device and the combined conveying pipeline.

In any of the above technical solutions, preferably, the dust collecting and filtering device includes a box and n vertically installed filter cartridges vertically arranged in the box.

In any of the above technical solutions, preferably, the vertically-installed filter cartridge is detachably installed on both sides of the rail grinding wagon body.

In any of the above solutions, it is preferable that the vertically installed filter cartridge is detachable and replaceable from a middle walkway inside a compartment of the rail grinding wagon.

In any of the above technical solutions, preferably, n is not less than 1.

In any of the above technical solutions, preferably, the centrifugal fan is disposed at an upper portion of the dust collecting and filtering device and connected to the silencer.

In any of the above technical solutions, preferably, the screw conveying ash discharging device is disposed at a lower portion of the dust collecting and filtering device.

Preferred among any above-mentioned technical scheme is that auger delivery ash discharging equipment includes ash bucket, vibratory hammer, screw conveyer, sword type gate valve and motor, and sword type gate valve arranges in the screw conveyer lower part, and screw conveyer arranges in the ash bucket lower part, and the vibratory hammer arranges in the ash bucket outer wall, and the motor provides power for auger delivery ash discharging equipment.

In any of the above embodiments, preferably, the ash hopper is connected to an ash dropping pipe of the pipe type spark arrestor.

The present invention also provides a rail grinding wagon comprising a rail grinding wagon dust collection device as described in any one of the above.

In any of the above technical solutions, preferably, a channel is left in the middle of the carriage of the rail grinding wagon body.

In any of the above solutions, it is preferable that the loads of the two sets of dust collecting units are uniformly distributed in the vehicle body.

In any of the above-described embodiments, the dust duct and the spark arresting system are preferably disposed at a lower portion of the vehicle body.

In any of the above technical solutions, it is preferable that the screw conveying ash discharging device is disposed at a lower portion of the vehicle body.

In any of the above technical solutions, it is preferable that the structure of the rail grinding wagon after the rail grinding wagon is installed with the dust collecting device of the rail grinding wagon meets the requirements of the left and right side limits of the railway.

Compared with the prior art, the above technical scheme of the utility model following beneficial effect has:

the left dust collecting unit and the right dust collecting unit which are symmetrically arranged on the left and right sides respectively absorb dust and sparks generated by grinding the left rail and the right rail, and the requirement that a walkway is reserved in the middle of the interior of a carriage and the requirement that the load of a dust collecting device is uniformly distributed in the rail grinding wagon can be met by adopting a bilaterally symmetrical arrangement mode under the conditions that the interior space of a rail grinding wagon body is limited and the requirement on the limitation of a wagon is strict;

the dust conveying pipeline and the spark capture system are arranged in the rail grinding wagon, and the rail grinding wagon comprises a combined conveying pipeline and a pipeline type spark capture device, so that the functions of dust conveying and efficient spark capture are realized, the effective utilization of the bottom space of the wagon body of the rail grinding wagon is realized, and the structure is compact;

the dust collecting and filtering device comprises a pulse reverse blowing device, a box body and a vertically-installed filter cylinder, and an installation structure for vertically installing the filter cylinder and a mode of cleaning the filter cylinder at the top realize the maximization of dust filtering area and the compact structure of the dust collecting and filtering device, and can realize the disassembly and replacement of the vertically-installed filter cylinder from the middle walkway in the vehicle body and two sides of the vehicle body respectively;

the silencer device is arranged, so that the running noise of the centrifugal fan is reduced, the structure is reasonable, and the environment and the space in the carriage are optimized;

the spiral conveying ash discharging device is arranged and comprises an ash bucket, a vibration hammer, a spiral conveyor and a knife-shaped gate valve, so that the automation degree of the dust discharging process is higher, and manpower and material resources can be effectively saved;

the pipeline type spark catcher is embedded in the combined type conveying pipeline, and under the negative pressure action of the centrifugal fan, the combined type conveying pipeline and the spark catching system catch sparks generated by grinding the steel rail while conveying dust; in addition, pipeline formula spark catcher also can arrange in the end of dust combination formula pipeline, links to each other with collection dirt filter equipment inlet end, and pipeline formula spark catcher belly has arranged the ash falling pipeline, and the spark is through cooling down in advance and extinguishing the back, and the dust of great granule can get into the ash bucket of dust collecting unit lower part through the ash falling pipeline.

The left dust collecting unit and the right dust collecting unit are symmetrically arranged on the left side and the right side of the steel rail grinding wagon along the travelling direction of the steel rail grinding wagon, the two sets of dust collecting units are reasonable in design and compact in structure, the limit requirements of the left side and the right side of a railway can be met after the dust collecting units are installed, the requirement that the load of a dust collecting device is uniformly distributed in the steel rail grinding wagon can be met, and the requirement that a channel is reserved in the middle of a wagon body can be; the dust collecting device of the steel rail grinding wagon has the characteristics of compact structure, high collection efficiency, good environmental protection performance, high efficiency in utilizing the internal space of the steel rail grinding wagon and the like; the steel rail grinding wagon adopting the dust collecting device is environment-friendly and efficient in online grinding operation.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a schematic view of a preferred embodiment of a rail grinding wagon dust collector according to the present invention;

FIG. 2 is a schematic view showing the direction of gas and dust transport during operation of the dust collecting device of the rail grinding wagon according to the embodiment of the present invention shown in FIG. 1;

FIG. 3 is a schematic view of the dust collecting unit of the rail grinding wagon of the embodiment shown in FIG. 1;

FIG. 4 is a schematic view of the dust duct and spark catch system of the dust collecting unit shown in FIG. 3;

FIG. 5 is a schematic view of the dust collecting and filtering device of the dust collecting unit on one side of FIG. 3;

FIG. 6 is a schematic view showing the structure of the screw conveyer ash discharger of the dust collecting unit on one side of FIG. 3;

fig. 7 is another schematic layout of the dust duct and spark catch system configuration of the one-side dust collection unit shown in fig. 3.

Reference numerals: 1. the device comprises a dust conveying pipeline and spark capturing system, 2a pulse reverse blowing device, 3 a silencer, 4 a centrifugal fan, 5 a dust collecting and filtering device, 6 a spiral conveying ash discharging device, 7 a pipeline type spark catcher, 8 a combined conveying pipeline, 9 a box body, 10 a vertical filter cylinder, 11 an ash bucket, 12 a vibration hammer, 13 a spiral conveyor, 14 and a knife-shaped gate valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In order to overcome the problems of the dust collecting device of the steel rail grinding wagon in the prior art, the embodiment of the utility model provides the dust collecting device of the steel rail grinding wagon, two sets of dust collecting units are reasonable in design and compact in structure, can meet the requirements of the limits on the left side and the right side of a railway after being installed, can meet the requirement of uniform distribution of the load of the dust collecting device in the steel rail grinding wagon, and can meet the requirement of leaving a channel in the middle of a wagon body; the dust collecting device of the steel rail grinding wagon has the characteristics of compact structure, high collection efficiency, good environmental protection performance, high-efficiency utilization of the internal space of the steel rail grinding wagon and the like; the steel rail grinding wagon adopting the dust collecting device is environment-friendly and efficient in online grinding operation.

Example 1

As shown in fig. 1, along the driving direction of the rail grinding wagon, a left dust collecting unit and a right dust collecting unit are symmetrically arranged on the left and right sides of the rail grinding wagon (the right side defining the driving direction of the rail grinding wagon is the right dust collecting unit, and the left side is the left dust collecting unit), the left dust collecting unit and the right dust collecting unit respectively suck dust-containing gas from the grinding position at the bottom of the rail grinding wagon, and then respectively discharge clean gas from the left and right sides of the rail grinding wagon, so that dust collection and discharge on the left rail and the right rail of the railway are realized.

As shown in fig. 1, the two sets of dust collecting units are symmetrically arranged on the left side and the right side of the rail grinding wagon, the design is reasonable, the structure is compact, the limit requirements of the left side and the right side of a railway are met after installation, the requirement that loads of dust collecting devices are uniformly distributed in the rail grinding wagon is met, and the requirement that a channel is reserved in the middle of a wagon body is met.

The rail grinding wagon dust collecting device of this embodiment includes left side dust collecting unit and right side dust collecting unit, and two sets of dust collecting unit arrange in the rail grinding wagon left and right sides along rail grinding wagon driving direction symmetry, below combine fig. 2 to 6, use one side dust collecting unit as an example concrete explanation its structure, characteristics and theory of operation.

As shown in fig. 2 to 6, the integrated unit of the present embodiment mainly includes a dust transporting pipe and spark capturing system 1, a pulse back-blowing device 2, a silencer 3, a centrifugal fan 4, a dust collecting and filtering device 5, a spiral conveying and ash discharging device 6, a pipe type spark capturing device 7, a combined transporting pipe 8, a box 9, a vertically installed filter cylinder 10, an ash bucket 11, a vibration hammer 12, a spiral conveyor 13, and a knife gate valve 14, wherein the dust transporting pipe and spark capturing system 1, the silencer 3, the centrifugal fan 4, the dust collecting and filtering device 5, and the spiral conveying and ash discharging device 6 are assembled and connected with a rail grinding wagon.

As shown in fig. 3 and 4, the dust transporting pipe and spark capturing system 1 includes a pipe type spark catcher 7 and a combined transporting pipe 8, and the pipe type spark catcher 7 is embedded in the combined transporting pipe 8 and connected to the air inlet end of the dust collecting and filtering device 5.

As shown in fig. 1, 2, 3 and 5, a pulse back-blowing device 2 is arranged on a connecting pipeline of the dust collecting and filtering device 5 and the combined conveying pipeline 8. The dust collection and filtration device 5 comprises a box body 9 and n upright filter cylinders 10 which are vertically arranged in the box body 9, wherein n is more than or equal to 1. The vertically-installed filter cylinder 10 is detachably arranged on a middle walkway inside a carriage of the rail grinding wagon, or detachably arranged on two sides of a wagon body of the rail grinding wagon.

As shown in fig. 3, the centrifugal fan 4 is disposed at an upper portion of the dust collecting and filtering device 5, and is connected to the silencer 3.

As shown in fig. 3 and 6, the screw conveying ash discharging device 6 is arranged at the lower part of the dust collecting and filtering device 5. The spiral conveying ash discharging device 6 mainly comprises an ash bucket 11, a vibration hammer 12, a spiral conveyer 13, a knife-shaped gate valve 14 and a motor, wherein the knife-shaped gate valve 14 is arranged on the lower portion of the spiral conveyer 13, the spiral conveyer 13 is arranged on the lower portion of the ash bucket 11, the vibration hammer 12 is arranged on the outer wall of the ash bucket 11, and the motor provides power for the spiral conveying ash discharging device 6.

The other side dust collecting unit can be arranged as shown in fig. 2 to 6. The two sets of dust collecting units on the left side and the right side are symmetrically arranged on the left side and the right side of the steel rail grinding wagon along the travelling direction of the steel rail grinding wagon and are in assembly connection with the steel rail grinding wagon, so that dust on a left railway track and a right railway track is collected and discharged.

In this embodiment, as shown in fig. 2, the dust transporting pipe and spark capturing system 1 adopts a pipe type spark catcher 7, which is embedded in a combined transporting pipe 8, and captures sparks generated by grinding a rail while transporting dust by the centrifugal fan 4 under negative pressure, and the air flow direction is shown by a solid line in fig. 2. The dust-containing gas after spark capture is filtered by a dust collecting and filtering device 5 provided with a vertically-installed filter cylinder 10, and the clean air is discharged to the outside of the vehicle body through a centrifugal fan 4 and a silencer 3, wherein the air flow direction is shown by a double-dot chain line in fig. 2. The filtered dust is discharged by the spiral conveying dust discharging device 6, falls into the dust hopper 11, and is discharged from the bottom of the rail grinding car body through the spiral conveyor 13 and the knife gate valve 14, wherein the dust discharging direction is shown by a dotted line in fig. 2. When 4 work of centrifugal fan, 3 work of muffler, silencing device reduces 4 running noise of centrifugal fan and rational in infrastructure, optimizes environment and space in the carriage.

In this embodiment, as shown in fig. 4, the dust transporting pipe and spark capturing pipe system 1 is composed of a pipe type spark catcher 7 and a combined transporting pipe 8, and a negative pressure is formed in the pipe by the centrifugal fan 4. Dust conveying pipeline and spark are caught piping system 1 and are effectively utilized rail grinding wagon bottom spatial layout, satisfy the function of high-efficient seizure spark while, rational utilization rail grinding wagon carriage inner space guarantees dust collecting device compact structure.

In the present embodiment, as shown in FIG. 5, the dust collecting and filtering apparatus 5 is composed of a housing 9 and n (n.gtoreq.1) vertically arranged filter cartridges 10. The dust collecting device of the rail grinding wagon adopts a structure that the filter cylinders are vertically arranged, so that the effective filtering area can be increased, and the spatial layout of the dust collecting device is compact; the pulse back-blowing device 2 can perform ash removal on the filter cylinder from the top; the vertically mounted filter cartridge 10 of the dust collection and filtration device 5 can be removed and replaced from the middle aisle or the two sides of the car body inside the rail grinding car, as shown in fig. 1.

In the present embodiment, the screw conveyer ash discharger 6 is composed of an ash hopper 11, a vibration hammer 12, a screw conveyer 13, and a knife gate valve 14, as shown in fig. 6. After the knife gate valve 14 is opened, the dust falling into the dust hopper 11 is transported by the screw conveyor 13 and discharged out of the rail grinding wagon. The spiral conveying ash discharging system can save manpower and material resources to the maximum extent, so that the dust collecting process is more efficient and automatic.

The embodiment adopts the silencer 3, and can reduce the noise generated by the dust collecting device in a narrow space. As shown in figure 3, through the arrangement of corners, airflow is guided to the two sides of the car body, and the utilization of the inner space of the rail grinding car is optimized.

The steel rail grinding wagon provided with the dust collecting device of the steel rail grinding wagon is characterized in that a channel is reserved in the middle of a carriage of a wagon body, loads of two sets of dust collecting units on the left side and the right side are uniformly distributed in the wagon body, a dust conveying pipeline and a spark capturing system 1 are arranged on the lower portion of the wagon body, and a spiral conveying ash discharging device 6 is arranged on the lower portion of the wagon body. The structure of the rail grinding wagon after the rail grinding wagon is provided with the dust collecting device of the rail grinding wagon meets the requirements of the limits of the left side and the right side of a railway.

The operation under the working condition of dust collection:

the dust collection operating mode is used for the rail grinding wagon to collect the dust in real time in the operation, because of the two sets of collection dirt units of controlling the rail are bilateral symmetry structure, consequently with one of them set of concrete description theory of operation:

firstly, opening a pulse reverse blowing device 2, a silencer 3 and a centrifugal fan 4;

closing the vibration hammer 12, the screw conveyor 13 and the knife gate valve 14;

under the action of the centrifugal fan 4, negative pressure is formed in the dust conveying pipeline and the spark capturing pipeline 1 and the dust collecting and filtering device 5, the dust conveying pipeline and the spark capturing system 1 convey dust, and sparks generated in the polishing process are captured; the dust-containing gas enters a dust collecting and filtering device 5 for dust filtration after passing through a dust conveying pipeline and the spark capturing system 1, and the filtered clean gas is discharged to the atmosphere outside the vehicle body through a centrifugal fan 4 and a silencer 3. In the meantime, the pulse back-blowing device 2 is periodically turned on to blow back the filter cartridge from the upper side, thereby settling the dust attached to the filter cartridge.

Operating under the working condition of ash discharge:

the ash discharge working condition is used for the rail grinding wagon to stop the operation after, arranges the dust that produces to the automobile body outside, because of two sets of dust collecting unit of controlling the rail are bilateral symmetry structure, consequently with one of them set of concrete description theory of operation:

firstly, closing the pulse reverse blowing device 2, the silencer 3 and the centrifugal fan 4;

secondly, opening the screw conveyor 13 and the knife gate valve 14;

if the dust in the ash bucket and the screw conveyer is hardened, starting the vibration hammer 12;

the dust discharging working condition adopts the screw conveying dust discharging device 6 to discharge filtered dust to the outside of the vehicle body, and finally, the automatic, efficient and environment-friendly dust discharging effect is realized.

In the embodiment, the left dust collecting unit and the right dust collecting unit which are arranged in bilateral symmetry respectively absorb dust and sparks generated by grinding the left rail and the right rail. Under the conditions that the internal space of the rail grinding wagon body is limited and the requirement on the limitation of the wagon is strict, the requirement that a walkway is reserved in the middle of the interior of the carriage can be met by adopting a bilateral symmetry arrangement mode, and the requirement that the load of a dust collecting device is uniformly distributed in the rail grinding wagon can be met. A dust conveying pipeline and a spark capturing system are arranged in the steel rail grinding wagon, and the steel rail grinding wagon comprises a combined conveying pipeline and a pipeline type spark catcher, so that the functions of dust conveying and efficient spark capturing are realized, the effective utilization of the bottom space of a wagon body of the steel rail grinding wagon is realized, and the structure is compact. The dust collecting and filtering device comprises a pulse reverse blowing device, a box body and a vertically-installed filter cylinder, wherein the filter cylinder is vertically installed by an installation structure and the top, so that the filter cylinder is subjected to ash removal, the maximization of the dust filtering area is realized, the structure of the dust collecting and filtering device is compact, and the vertical installation of the filter cylinder can be respectively disassembled and replaced from the middle passage in the vehicle body and the two sides of the vehicle body. The silencer device is adopted to reduce the running noise of the centrifugal fan, has reasonable structure and optimizes the environment and space in the carriage. Adopt screw conveyer ash discharging device to contain ash bucket, vibratory hammer, screw conveyer, sword type gate valve, make dust discharge process automation degree higher, can effectively use manpower and materials sparingly.

Example 2

This embodiment may form a complete solution alone, or may form a complete solution in combination with any of embodiments 1 to 2.

Based on the rail grinding wagon dust collecting device of embodiment 1 and fig. 1 to 6 and the rail grinding wagon with the dust collecting device, the pipe-type spark arrestor can also be arranged at the end of the dust conveying pipe.

As shown in fig. 7, the dust conveying pipe and spark capturing system 1 comprises a pipe type spark catcher 7 and a combined conveying pipe 8, wherein the pipe type spark catcher 7 is arranged at the tail end of the combined conveying pipe 8 and is connected with the air inlet end of the dust collecting and filtering device 5; the belly of the pipeline type spark catcher 7 is provided with a dust falling pipeline, the dust falling pipeline of the pipeline type spark catcher 7 is connected with a dust hopper 11, and after the sparks are pre-cooled and extinguished, larger-particle dust enters the dust hopper at the lower part of the dust collecting unit through the dust falling pipeline.

According to the technical scheme, the arrangement structure of the whole set of dust collecting device is a key protection point, the bilateral symmetry arrangement mode of the dust collecting device is protected in a key mode, and the left dust collecting unit and the right dust collecting unit which are arranged in bilateral symmetry respectively absorb dust and sparks generated by grinding the left rail and the right rail. Under the conditions that the internal space of the rail grinding wagon body is limited and the requirement on the limitation of the wagon is strict, the requirements that the walkway is reserved in the middle of the interior of the carriage and the load of the dust collecting device is uniformly distributed in the rail grinding wagon can be met by adopting a bilateral symmetry arrangement mode.

Above-mentioned technical scheme that this embodiment provided, the arrangement structure of dust conveying pipeline and spark capture system in the rail grinding wagon is the key protection point, but this structure rational utilization rail grinding wagon automobile body lower part space when realizing that the dust is carried and high-efficient spark catches the function, but the spatial layout of furthest optimization rail grinding wagon.

According to the technical scheme provided by the embodiment, the arrangement structure for vertically placing the filter cylinders in the dust collection and filtration device is a key protection point, and the vertically-installed filter cylinders can be taken out from the middle walkway of the carriage and two sides of the vehicle body respectively, so that the filter cylinders are convenient to disassemble and replace; the pulse back blowing device blows all the filter cylinders from the top simultaneously; the arrangement structure can effectively increase the filtering area of dust, optimize the dust collecting effect, facilitate replacement and maintenance and ensure that the dust collecting device has compact structure.

Above-mentioned technical scheme that this embodiment provided, the arrangement structure of muffler is the key protection point, and this rational in infrastructure utilizes automobile body inner space structure, with clean air direction automobile body both sides discharge, rationally distributed optimizes automobile body inner space.

Above-mentioned technical scheme that this embodiment provided, the arrangement structure of auger delivery ash discharging device is key protection point, and this arrangement structure utilizes automobile body below space ingeniously, directly arranges the dust to the automobile body outside, when realizing automatic emission dust, practicing thrift manpower and materials, effectively improves the interior overall arrangement of car, makes the internal mechanism of automobile compact.

The above description is only intended to describe the preferred embodiments of the present invention, and not to limit the scope of the present invention. The dust collecting and filtering device of the embodiment adopts an arrangement structure that the filter cartridge is vertically arranged, and the filter cartridge arrangement mode is changed into a mode that the filter cartridge is transversely arranged or obliquely arranged, so that the filter cartridge arrangement structure cannot be one of modes for avoiding the claims of the arrangement structure of the patent; the filter arrangement for filter cartridge replacement is filter bag filtration and cannot be one of the ways to circumvent the patent arrangement claims.

The above description is only a specific embodiment of the present invention, and is not intended to limit the scope of the present invention; without departing from the spirit of the present invention, any modification, equivalent replacement, or improvement made by the technical solution of the present invention by those of ordinary skill in the art should fall within the protection scope defined by the claims of the present invention.

Claims (21)

1. The utility model provides a rail grinding wagon dust collecting device, its characterized in that, rail grinding wagon dust collecting device includes left side dust collecting unit and right side dust collecting unit, and two sets of dust collecting unit arrange in the rail grinding wagon left and right sides along rail grinding wagon driving direction symmetry.

2. A dust collecting device of a steel rail grinding wagon according to claim 1, wherein the left dust collecting unit and the right dust collecting unit respectively comprise a dust conveying pipeline and spark capturing system (1), a silencer (3), a centrifugal fan (4), a dust collecting and filtering device (5) and a spiral conveying ash discharging device (6), and the dust conveying pipeline and spark capturing system (1), the silencer (3), the centrifugal fan (4), the dust collecting and filtering device (5) and the spiral conveying ash discharging device (6) are assembled and connected with the steel rail grinding wagon.

3. A rail grinding vehicle dust collecting apparatus according to claim 2, wherein said dust delivery duct and spark arrest system (1) comprises a ducted spark arrestor (7) and a combined delivery duct (8).

4. A dust collector for a rail grinding wagon according to claim 3, wherein the ducted spark arrester (7) is embedded in the combined conveying duct (8) and is connected to the air inlet end of the dust collecting and filtering device (5).

5. A rail grinding wagon dust collector as claimed in claim 3, wherein the ducted spark arrestor (7) is arranged at the end of the combined conveying duct (8) and connected to the air inlet end of the dust collecting and filtering device (5).

6. A rail grinding wagon dust collector as claimed in claim 5, wherein the duct type spark arrestor (7) is provided with a dust falling duct at a belly portion thereof.

7. A rail grinding wagon dust collector as claimed in claim 2, wherein the pulse back-blowing device (2) is arranged in the connection line of the dust collecting and filtering device (5) and the combined conveying pipe (8).

8. A rail grinding wagon dust collector as claimed in claim 7, wherein the dust collecting and filtering device (5) comprises a housing (9) and n vertically mounted filter cartridges (10) arranged vertically in the housing (9).

9. A rail grinding wagon dust collector as claimed in claim 8, wherein the vertically mounted filter cartridge (10) is removable and replaceable from an intermediate walkway within the wagon body of the rail grinding wagon.

10. A rail grinding wagon dust collector as claimed in claim 8, wherein the vertically mounted filter cartridges (10) are removably mounted to the sides of the wagon body.

11. A dust collector for a rail grinding wagon according to claim 8, wherein n is 1 or more.

12. A dust collector for a rail grinding wagon according to claim 2, wherein the centrifugal fan (4) is arranged above the dust collecting and filtering device (5) and is connected to the silencer (3).

13. A dust collector for a rail grinding wagon according to claim 2, wherein the screw conveying dust discharging device (6) is arranged at the lower part of the dust collecting and filtering device (5).

14. A dust collecting apparatus of a rail grinding wagon according to claim 13, wherein the screw conveying dust discharging apparatus (6) comprises a dust hopper (11), a vibration hammer (12), a screw conveyor (13), a knife gate valve (14) and a motor, the knife gate valve (14) is disposed at a lower portion of the screw conveyor (13), the screw conveyor (13) is disposed at a lower portion of the dust hopper (11), the vibration hammer (12) is disposed at an outer wall of the dust hopper (11), and the motor provides power for the screw conveying dust discharging apparatus (6).

15. A rail grinding wagon dust collector as claimed in claim 14, wherein the ash hopper (11) is connected to an ash drop conduit of the ducted spark arrestor (7).

16. A rail grinding wagon, comprising a rail grinding wagon dust collector apparatus as claimed in any one of claims 2 to 15.

17. A rail grinding wagon according to claim 16 wherein the wagon body has a channel in the middle of the wagon body.

18. A rail grinding wagon as defined in claim 16 wherein the loads of the two sets of dust collection units are evenly distributed within the wagon body.

19. A rail grinding wagon according to claim 16, wherein the dust duct and spark catch system (1) is arranged in a lower part of the wagon body.

20. A rail grinding wagon according to claim 16, wherein the screw conveyor ash removal device (6) is arranged in a lower part of the wagon body.

21. A rail grinding wagon according to claim 16 wherein the rail grinding wagon mounted with the rail grinding wagon dust collector is configured to meet rail side-to-side clearance requirements.

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