A screening equipment

Abstract

The present invention discloses a cleaning and screening equipment, including a vehicle body for running along a track, wherein a liquid spraying device and a ballast collecting device are provided on the vehicle body, and the liquid spraying device sprays a cleaning liquid to remove particulate matter in the ballast, so that the ballast collecting device can absorb the liquid containing particulate matter. The above-mentioned cleaning and screening equipment does not require excavation of the track bed, which can save a lot of processing time at the ballast mouth and greatly improve the operation efficiency; the equipment can also effectively solve the problem of cleaning and screening in the turnout area. At the same time, the cleaning and screening equipment will not generate air pollutants such as dust during operation, which is beneficial to environmental protection. In addition, the equipment value is relatively low, and the fixed investment and maintenance costs are also low, which has great promotion value.

Description

Technical Field

[0001] The invention relates to the technical field of track engineering, and in particular to a cleaning and screening operation equipment. Background Art

[0002] After long-term use, the ballast railway track bed will suffer from compaction, mud and slurry, which will destroy the elastic structure of the track system and cause greater line diseases or safety hazards. The treatment of the above-mentioned diseases is mainly achieved through cleaning and screening. The specific process is to adopt the excavation method: the first step is to open the dragon mouth and manually excavate the ballast; the second step is to extend the ballast digging chain under the track; the third step is to restore the dragon mouth and advance the cleaning and screening train; the fourth step is to dig out the old ballast, clean and backfill; the fifth step is to open the dragon mouth and recycle the ballast digging chain; the sixth step is to restore the dragon mouth; the seventh step is to exit the cleaning and screening train and perform tamping operations. Although the cleaning and screening of the cleaning and screening train can completely treat the roadbed diseases, the time for cutting in and out and restoring the dragon mouth is too long, and the cleaning time cannot be guaranteed within the limited skylight point, resulting in low overall efficiency; at the same time, the cleaning and screening equipment is expensive, and its fixed investment and maintenance costs are high.

[0003] For the cleaning of ballasted turnouts, since there is no better mechanical cleaning method, it is usually not cleaned or cleaned manually. It is too difficult to use manual excavation to clean the turnouts: ① It is necessary to organize a large number of people to go on the track, which is difficult to manage safely; ② The cleaning operation is complicated and difficult to complete within the limited time window; ③ It is difficult to achieve a unified standard for manual operation. Therefore, once the turnout is hardened, it is difficult to restore its performance.

[0004] Therefore, how to avoid low operating efficiency and high operating costs caused by adopting an excavation-type screening method is a technical problem that technical personnel in this field currently need to solve. Summary of the invention

[0005] The purpose of the present invention is to provide a screening operation equipment, which can solve the problems of roadbed compaction and mud bubbling, and does not require excavation of the roadbed, which can save operation time and greatly improve operation efficiency.

[0006] To achieve the above-mentioned purpose, the present invention provides a cleaning and screening operation equipment, including a vehicle body for running along a track, the vehicle body is provided with a liquid spraying device and a ballast collecting device, the liquid spraying device sprays cleaning liquid to remove particulate matter in the ballast, so that the ballast collecting device can absorb the liquid containing the particulate matter.

[0007] Optionally, the liquid spraying device includes a housing, a high-pressure pump assembly and a liquid spraying pipe assembly. The high-pressure pump assembly is connected to the housing and the liquid spraying pipe assembly via a pipeline. The cleaning liquid in the housing is pressurized to a preset pressure by the high-pressure pump assembly and then delivered to the liquid spraying pipe assembly.

[0008] Optionally, the liquid spraying pipe assembly comprises a first liquid spraying pipe for extending into the interior of the ballast to spray high-pressure liquid to wash the ballast, and a second liquid spraying pipe for being arranged above the ballast and spraying high-pressure liquid to the top of the ballast.

[0009] Optionally, it also includes a first vibration source connected to the first liquid spraying pipe for providing vibration power to the first liquid spraying pipe.

[0010] Optionally, the ballast collecting device includes a ballast collecting box, a vacuum pump assembly and a ballast suction pipe for extending into the interior of the ballast to absorb liquid containing particulate matter. The ballast collecting box is connected to the vacuum pump assembly and the ballast suction pipe through a pipeline. The vacuum pump assembly is used to evacuate the ballast collecting box to generate negative pressure so that the ballast suction pipe can absorb the liquid containing particulate matter.

[0011] Optionally, the ballast suction pipe includes an inner pipe and a wear-resistant metal screen arranged outside the inner pipe for allowing cleaning liquid and particles of a preset particle size to enter the inner pipe.

[0012] Optionally, the bottom of the ballast suction pipe is in a wedge-shaped structure, and the wedge surface of the wedge-shaped structure faces the first liquid spraying pipe.

[0013] Optionally, it also includes a second vibration source connected to the ballast suction pipe for providing vibration power to the ballast suction pipe.

[0014] Optionally, there are multiple first liquid spray pipes and multiple ballast suction pipes, all of which are arranged in a row, and multiple ballast suction pipes are distributed around any first liquid spray pipe.

[0015] Optionally, it also includes a track lifting device arranged at the bottom of the vehicle body for lifting the track to loosen the ballast.

[0016] Compared with the above-mentioned background technology, the cleaning and screening equipment provided in the embodiment of the present invention includes a vehicle body, a liquid spraying device and a ballast collecting device, wherein the liquid spraying device and the ballast collecting device are arranged on the vehicle body, and the vehicle body can run along the track, and the liquid spraying device and the ballast collecting device are driven by the vehicle body to run along the track to the working position. During operation, the cleaning liquid is sprayed out by the liquid spraying device to remove the particulate matter in the ballast, and then the liquid containing the particulate matter is absorbed by the ballast collecting device, so that the silt and small-diameter ballast and other particulate matter in the ballast can be removed. The above-mentioned setting method uses the cleaning liquid as a carrier, so that the silt and small-diameter ballast and other particulate matter in the ballast follow the flow of the cleaning liquid, and then the liquid containing the particulate matter is absorbed by the ballast collecting device, which can solve the problems of compaction of the roadbed and mud bubbling. Compared with the traditional excavation operation method, the screening operation equipment provided by the embodiment of the present invention does not need to excavate the roadbed, which can save a lot of dragon mouth processing time and greatly improve the operation efficiency; at the same time, the screening operation equipment does not generate dust and other air pollutants during the operation process, which is beneficial to environmental protection. In addition, the equipment value is relatively low, and the fixed investment and maintenance costs are also low, which has great promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0018] Figure 1 A schematic structural diagram of a first screening operation device provided by an embodiment of the present invention;

[0019] Figure 2 A schematic diagram of the structure of a second screening operation device provided by an embodiment of the present invention;

[0020] Figure 3 This is a simplified structural diagram of the cleaning system;

[0021] Figure 4 It is the structural details of the cleaning system;

[0022] Figure 5 It is a structural schematic diagram of the ballast suction pipe;

[0023] Figure 6 for Figure 5 Schematic diagram of the cross-sectional structure of section A of the middle ballast absorption pipe.

[0024] in:

[0025] 1-car body, 2-screening system, 21-liquid spraying device, 211-box, 212-high-pressure pump assembly, 213-first liquid spraying pipe, 214-first vibration source, 215-second liquid spraying pipe, 22-ballast collecting device, 221-ballast collecting box, 222-vacuum pump assembly, 223-ballast suction pipe, 2231-wear-resistant metal partition, 224-second vibration source, 3-track lifting device. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] The core of the present invention is to provide a cleaning and screening equipment, which can solve the problems of roadbed compaction and mud bubbling, and does not require excavation of the roadbed, which can save operation time and greatly improve operation efficiency.

[0028] In order to enable those skilled in the art to better understand the scheme of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0029] It should be noted that the directional words such as "upper end, lower end, left side, right side" described below are all defined based on the drawings in the specification.

[0030] Please refer to Figures 1 to 6 , Figure 1 A schematic structural diagram of a first screening operation device provided by an embodiment of the present invention; Figure 2 A schematic diagram of the structure of a second screening operation device provided by an embodiment of the present invention; Figure 3 This is a simplified structural diagram of the cleaning system; Figure 4 It is the structural details of the cleaning system; Figure 5 It is a structural schematic diagram of the ballast suction pipe; Figure 6 for Figure 5 Schematic diagram of the cross-sectional structure of section A of the middle ballast absorption pipe.

[0031] The cleaning and screening equipment provided in the embodiment of the present invention includes a vehicle body 1 and a cleaning and screening system 2, wherein the cleaning and screening system 2 includes a liquid spraying device 21 and a ballast collecting device 22, the liquid spraying device 21 and the ballast collecting device 22 are arranged on the vehicle body 1, and the vehicle body 1 can run along the track, and the liquid spraying device 21 and the ballast collecting device 22 are driven by the vehicle body 1 to run along the track to the operating position. During operation, the cleaning liquid is sprayed out by the liquid spraying device 21 to remove the particles in the ballast, and then the liquid containing the particles is absorbed by the ballast collecting device 22, so that the particles such as the sediment and small-diameter ballast particles in the ballast can be removed.

[0032] Of course, according to actual needs, the cleaning liquid can be clean water or a liquid with a certain concentration of environmentally friendly detergent.

[0033] It should be noted that the above-mentioned vehicle body 1 can be a self-propelled or towed (requiring additional power to be towed) rail vehicle. Taking a self-propelled vehicle as an example, the vehicle includes a front and an open carriage, and the spraying device 21 and the ballast collecting device 22 are respectively arranged at the front and rear ends of the carriage.

[0034] The above-mentioned arrangement uses cleaning liquid as a carrier. When the liquid spraying device 21 sprays cleaning liquid onto the ballast, the sand and small-diameter ballast and other particles in the ballast can flow with the cleaning liquid, and then the liquid containing the particles is sucked away by the ballast collecting device 22. This can solve the problems of compaction and mud on the ballast bed, thereby preventing the elastic structure of the track system from being damaged to a certain extent, thereby avoiding greater line diseases or safety hazards.

[0035] Compared with the traditional excavation operation method, the cleaning and screening equipment provided by the embodiment of the present invention does not need to excavate the roadbed, which can save a lot of time for processing the ridges and greatly improve the operation efficiency; at the same time, the cleaning and screening equipment does not generate air pollutants such as dust during operation, which is beneficial to environmental protection. In addition, the equipment value is relatively low, and the fixed investment and maintenance costs are also low, which has great promotion value.

[0036] Specifically, the liquid spraying device 21 comprises a housing 211, a high-pressure pump assembly 212 and a liquid spraying pipe assembly. The high-pressure pump assembly 212 is connected to the housing 211 and the liquid spraying pipe assembly through a pipeline. The cleaning liquid in the housing 211 is pressurized to a preset pressure by the high-pressure pump assembly 212 and then transported to the liquid spraying pipe assembly. In this way, the cleaning liquid is sprayed out through the liquid spraying pipe assembly, and the sand and small-diameter ballast particles in the ballast flow with the cleaning liquid.

[0037] In order to improve the cleaning efficiency, the above-mentioned spray pipe assembly includes a first spray pipe 213 and a second spray pipe 215, wherein the first spray pipe 213 and the second spray pipe 215 are both installed at the lower part of the vehicle body 1, the first spray pipe 213 is used to extend into the ballast to spray high-pressure liquid to flush the ballast, and the second spray pipe 215 is arranged above the ballast and sprays high-pressure liquid to the top of the ballast.

[0038] That is to say, in the embodiment of the present invention, two types of liquid spray pipes are preferably provided. The first type of liquid spray pipe extends into the interior of the ballast to perform liquid spraying during operation. On the basis of the above, another type of liquid spray pipe is provided. The liquid spray pipe is arranged above the ballast and sprays cleaning liquid onto the top of the ballast during operation so that the cleaning liquid flows downward along the top of the ballast, thereby cleaning the particulate matter in the ballast to a greater extent.

[0039] In addition, in order to facilitate the first liquid spraying pipe 213 to penetrate into the ballast more easily, a first vibration source 214 may be provided. The first vibration source 214 is connected to the first liquid spraying pipe 213 and is used to provide high-frequency vibration power to the first liquid spraying pipe 213 .

[0040] More specifically, the box 211 is filled with clean water (or water with a certain concentration of environmentally friendly detergent) and installed on the vehicle body 1. The high-pressure pump assembly 212 pressurizes the clean water (or water with a certain concentration of environmentally friendly detergent) in the box 211 to a certain pressure, and then transports it to the first spray pipe 213 and the second spray pipe 215 through a pipeline. Among them, the first spray pipe 213 can move in the horizontal, vertical and longitudinal directions, and extend into the ballast during operation. At the same time, with the help of the first vibration source 214, the first spray pipe 213 can extend into the ballast to spray high-pressure water to wash the ballast; the second spray pipe 215 sprays high-pressure water from the top of the ballast, and does not invade the inside of the ballast during operation.

[0041] In order to facilitate the absorption of liquid containing particulate matter, the above-mentioned ballast collecting device 22 is specifically configured as a vacuum ballast collecting device 22, including a ballast collecting box 221, a vacuum pump assembly 222 and a ballast suction pipe 223, wherein the ballast suction pipe 223 is installed at the lower part of the vehicle body 1, and can be moved in the lateral, vertical and longitudinal directions. During operation, it extends into the ballast to absorb the liquid containing mud and small-diameter ballast particles. The ballast collecting box 221 is connected to the vacuum pump assembly 222 and the ballast suction pipe 223 through a pipeline. The vacuum pump assembly 222 is connected to the upper outlet of the ballast collecting box 221. Its function is to evacuate the air in the ballast collecting box 221 to generate negative pressure for the ballast suction pipe 223 to absorb the liquid containing mud and small-diameter ballast particles.

[0042] Specifically, the ballast suction pipe 223 is specifically configured to include an inner pipe and a wear-resistant metal screen 2231. The wear-resistant metal screen 2231 is arranged outside the inner pipe, and the wear-resistant metal screen 2231 is used to allow cleaning liquid and particles of a preset particle size to enter the inner pipe. The setting of the wear-resistant metal screen 2231 can, on the one hand, protect the inner pipe; on the other hand, it can prevent large particles of ballast from being sucked into the ballast collecting box 221 along with the liquid.

[0043] In addition, in order to improve the suction efficiency, the bottom of the ballast suction pipe 223 is a wedge-shaped structure, and the wedge surface of the wedge-shaped structure faces the first liquid spraying pipe 213. This can improve the cleaning efficiency of the sediment and small-diameter ballast particles in the ballast to a certain extent.

[0044] Referring to the setting method of the first liquid spray pipe 213, in order to facilitate the ballast suction pipe 223 to more easily invade the ballast, a second vibration source 224 can also be set. The second vibration source 224 is connected to the ballast suction pipe 223 and is used to provide high-frequency vibration power to the ballast suction pipe 223.

[0045] Of course, according to actual needs, the first vibration source 214 and the second vibration source 224 can both be configured as vibrators in a vibrating screen in the prior art.

[0046] It should be noted that in order to simplify the structure and save costs, the first vibration source 214 and the second vibration source 224 can be simplified to be the same vibrator, and the vibration of the vibrator outputs high-frequency vibration power to make it easier for the first liquid spray pipe 213 and the ballast suction pipe 223 to penetrate into the ballast.

[0047] On the basis of the above, the number of the first liquid spraying pipes 213 and the number of the ballast suction pipes 223 are both multiple, all of the first liquid spraying pipes 213 are arranged in a row, and multiple ballast suction pipes 223 are distributed around any first liquid spraying pipe 213. In this way, the first liquid spraying pipes 213 arranged in a row can realize the ballast cleaning and screening between multiple rows of sleepers, and the distance between any two adjacent first liquid spraying pipes 213 can be adjusted according to the sleeper spacing.

[0048] In order to optimize the above embodiment, a track lifting device 3 is also included. The track lifting device 3 is arranged at the bottom of the vehicle body 1. When in operation, the track lifting device 3 can lift the track to a certain height to loosen the ballast, so as to facilitate the insertion of the first liquid spraying pipe 213 and the ballast suction pipe 223, thereby facilitating the discharge of mud and small-sized ballast particles in the ballast.

[0049] The track-lifting device 3 may be configured to include a clamping mechanism at the bottom, and the clamping mechanism may be a clamp for clamping the track. The power part of the track-lifting device 3 may be provided on the vehicle body 1, and of course, the power of the clamp may be provided by a piston-cylinder assembly. The number of track-lifting devices 3 may be one or more as required.

[0050] The following describes the operation process of the cleaning equipment:

[0051] Step 1: The operation vehicle arrives at the operation site carrying clean water (or water with a certain concentration of environmentally friendly detergent);

[0052] Step 2: Open the track lifting device 3 to clamp the track and lift the track to loosen the ballast;

[0053] Step 3: Start the high-pressure pump assembly 212, the second liquid spray pipe 215 starts to spray water, and the vacuum pump assembly 222 starts to generate negative pressure;

[0054] Step 4: After the first liquid spraying pipe 213 and the ballast suction pipe 223 are moved to suitable positions, they are inserted downward into the ballast. At the same time, the first liquid spraying pipe 213 sprays high-pressure water, and the ballast suction pipe 223 sucks ballast under negative pressure. The sediment and small-diameter ballast particles are sucked into the ballast collecting box 221 through the pipes.

[0055] Step 5: The first liquid spraying pipe 213 and the ballast suction pipe 223 are lifted up and separated from the ballast, and the water spraying and negative pressure ballast suction are stopped respectively.

[0056] Step 6: The vehicle moves to the next screening point and repeats steps 4 and 5 until the task is completed.

[0057] Step 7: Lift up the first liquid spray pipe 213 and the ballast suction pipe 223, close the high-pressure pump assembly 212 and the vacuum pump assembly 222, and exit the vehicle.

[0058] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0059] The above is a detailed introduction to the screening equipment provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the scheme and core ideas of the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, the present invention can also be improved and modified in a number of ways, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A cleaning and screening equipment, It is characterized in that The vehicle comprises a vehicle body (1) for running along a track, wherein a liquid spraying device (21) and a ballast collecting device (22) are provided on the vehicle body (1), wherein the liquid spraying device (21) sprays a cleaning liquid to remove particles in the ballast, so that the ballast collecting device (22) absorbs the liquid containing the particles; The liquid spraying device (21) comprises a housing (211), a high-pressure pump assembly (212) and a liquid spraying pipe assembly; the high-pressure pump assembly (212) is connected to the housing (211) and the liquid spraying pipe assembly via a pipeline; the cleaning liquid in the housing (211) is pressurized to a preset pressure by the high-pressure pump assembly (212) and then transported to the liquid spraying pipe assembly; The liquid spraying pipe assembly comprises a first liquid spraying pipe (213) for extending into the interior of the ballast to spray high-pressure liquid to wash the ballast, and a second liquid spraying pipe (215) for being arranged above the ballast and spraying high-pressure liquid to the top of the ballast; It also includes a first vibration source (214) connected to the first liquid spraying pipe (213) and used to provide vibration power to the first liquid spraying pipe (213); The ballast collecting device (22) comprises a ballast collecting box (221), a vacuum pump assembly (222) and a ballast suction pipe (223) for extending into the interior of the ballast to suck liquid containing particulate matter; the ballast collecting box (221), the vacuum pump assembly (222) and the ballast suction pipe (223) are all connected via pipelines; the ballast collecting box (221) is evacuated by the vacuum pump assembly (222) to generate negative pressure, so that the ballast suction pipe (223) can suck the liquid containing particulate matter; It also includes a second vibration source (224) connected to the ballast suction pipe (223) and used to provide vibration power to the ballast suction pipe (223).

2. The cleaning equipment according to claim 1, It is characterized in that The ballast suction pipe (223) comprises an inner pipe and a wear-resistant metal screen (2231) arranged outside the inner pipe and used for allowing cleaning liquid and particles of a preset particle size to enter the inner pipe.

3. The cleaning equipment according to claim 1, It is characterized in that The bottom of the ballast suction pipe (223) is in a wedge-shaped structure, and the wedge surface of the wedge-shaped structure faces the first liquid spraying pipe (213).

4. The cleaning equipment according to claim 1, It is characterized in that The number of the first liquid spraying pipe (213) and the number of the ballast suction pipe (223) are both multiple, all of the first liquid spraying pipes (213) are arranged in a row, and multiple ballast suction pipes (223) are distributed around any first liquid spraying pipe (213).

5. The cleaning equipment according to any one of claims 1 to 4, It is characterized in that It also includes a track lifting device (3) disposed at the bottom of the vehicle body (1) for lifting the track to loosen the ballast.

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