Filling pipeline cleaning device

Abstract

The utility model relates to a filling pipeline cleaning device which comprises a vertically-arranged connecting shaft, the connecting shaft is sequentially provided with an upper edge power assembly, an upper fan blade cleaning assembly, a middle power assembly, a lower fan blade cleaning assembly and a lower edge power assembly from top to bottom, and the upper edge power assembly and the lower edge power assembly each comprise a small shell. Two groups of filter screens are vertically arranged in the small shell at intervals, air inlet holes are formed in the lower ends of the small shells, and air outlet holes are formed in the upper ends of the small shells; the upper fan blade cleaning assembly and the lower fan blade cleaning assembly are consistent in structure and are each composed of a main body fixedly connected with the connecting shaft and fan blades arranged on the main body in a central symmetry mode, and cleaning rubber strips used for cleaning the inner wall of the pipeline are fixedly arranged on the outer edges of the fan blades. The middle power assembly comprises a large shell, two sets of large filter screens are arranged in the large shell in an up-down spaced mode, large air inlet holes are formed in the lower end of the large shell, large air outlet holes are formed in the upper end of the large shell, the filling pipeline cleaning device is simple in structure, and the cleaning effect is remarkably improved.

Description

Technical Field

[0001] The utility model relates to a filling pipeline cleaning device. Background Art

[0002] Filling pipeline cleaning is an important step in the mine production process, which can effectively clean the slurry residues on the pipeline, thereby effectively preventing the occurrence of pipe blockage accidents.

[0003] In the application of mine filling technology, in order to prevent residues from remaining or sticking in the pipeline and ensure the smooth filling and conveying of the slurry in the pipeline, the following 4 pipeline cleaning methods are often used: ① cleaning with sponge balls or rubber columns; ② cleaning with compressed air plus a small amount of clean water; ③ using non-cemented paste to remove the cemented paste in the pipeline; ④ using a hydraulic variable-diameter piston to remove the cemented paste.

[0004] Considering various factors comprehensively, the above four methods are still difficult to achieve efficient pipeline cleaning effects. In method ①, sponge balls and rubber columns lack self-driving force in the pipeline cleaning of more than one thousand meters and stay in the pipeline, causing pipe blockage. In method ②, due to the long and undulating pipeline, the residues in the pipeline are unevenly distributed along the pipeline. Especially in the lower-bending part of the pipeline, there are more residues left. At the moment of starting the compressed air, only a small amount of residues can be discharged with water and air. Method ④ is only suitable for the cleaning of a small number of pipelines or when there is a pipe blockage.

[0005] However, most mines still use the method of full-pipe gravity flow flushing of the pipeline, that is, when the slurry in the filling pipeline is basically transported, the water in the water supply pipeline is all filled into the filling pipeline to form a full-pipe gravity flow state, and under the action of the natural pressure difference, the residues in the pipeline are cleaned up. This method simply and effectively achieves the purpose of avoiding pipe blockage. However, every time the slurry in the filling pipeline is basically transported, it is necessary to stop the machine first for full-pipe gravity flow flushing, which means that the amount of water will reach a large amount under the accumulation effect, which will affect the concentration of the injected slurry, reduce the filling effect, and increase the external drainage volume of the mine.

[0006] Regarding the problem of filling pipeline cleaning, the currently commonly used treatment methods have problems such as weak cleaning continuity, insufficient cleaning intensity, and dilution of the filling slurry. They can only temporarily relieve the cleaning problems of shorter or local pipelines and cannot fundamentally solve the cleaning problem of long underground filling pipelines. At present, both at home and abroad, the problem of underground filling pipeline cleaning still stays at the level of local short-range cleaning, and there is no relevant research and application for the systematic cleaning of long pipelines. Content of the Utility Model

[0007] In view of the deficiencies of the prior art, the technical problem to be solved by the utility model is to provide a filling pipeline cleaning device, which is not only reasonable in structure but also convenient and efficient.

[0008] In order to solve the above technical problems, the technical solution of the utility model is: a filling pipe cleaning device, comprising a vertically arranged connecting shaft, the connecting shaft is provided with an upper edge power assembly, an upper fan blade cleaning assembly, an intermediate power assembly, a lower fan blade cleaning assembly and a lower edge power assembly in sequence from top to bottom, the upper edge power assembly and the lower edge power assembly have the same structure, both include a small shell, two groups of filter screens are arranged at intervals from top to bottom in the small shell, the lower end of the small shell is provided with an air inlet hole, and the upper end is provided with an air outlet hole; the upper fan blade cleaning assembly is consistent with the lower fan blade cleaning assembly in structure, both are composed of a main body fixedly connected to the connecting shaft and fan blades centrally symmetrically arranged on the main body, and the outer edges of the fan blades are fixed with cleaning rubber strips for cleaning the inner wall of the pipe; the intermediate power assembly comprises a large shell, two groups of large filter screens are arranged at intervals from top to bottom in the large shell, the lower end of the large shell is provided with a large air inlet hole, and the upper end is provided with a large air outlet hole.

[0009] Furthermore, a positioning remote sensing controller is disposed in both the large shell and the small shell.

[0010] Furthermore, a spherical sponge ball is sleeved outside the small shell, and the air inlet and the air outlet both pass through the sponge ball.

[0011] Furthermore, one end of the large filter located at the bottom is hinged to the inner wall of the large shell through a hinge shaft, and the other end is provided with a limiting column near the large air inlet side. The large filter located at the top is symmetrically arranged with the center of the large filter located at the bottom, and one end of the hinged end is provided with a limiting column near the air outlet side, and the two large filter limit swing directions are opposite.

[0012] Furthermore, the large shell is cylindrical, and a rubber sleeve is coaxially sleeved on its outer periphery.

[0013] Furthermore, the pipeline is composed of a vertical filling drilling pipeline and a horizontal filling pipeline laid in an underground tunnel. A high-pressure pump for delivering a filling pipeline cleaning device is provided at the top of the vertical filling drilling pipeline.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] (1) Based on the basic physical principles and processes of underground filling pipes, the sponge ball is combined with the fan blade and cleaning strip to improve the cleaning effect per unit area.

[0016] (2) The problem of pipe blockage caused by insufficient power of sponge cleaning balls when cleaning long pipes has been completely solved.

[0017] (3) The energy of the rotating fan blades is fully utilized to reasonably control the cleaning time of the underground filling pipes, effectively improving the cleaning effect.

[0018] (4)It completely solves the problem that the concentration of the backfill slurry in the goaf decreases due to the use of a large amount of water for cleaning the traditional underground charging pipeline, and realizes higher economic benefits in the long run.

[0019] The following further describes the present utility model in detail with reference to the accompanying drawings and specific embodiments. Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of an embodiment of the present utility model;

[0021] Figure 2 It is a schematic diagram of the usage state of an embodiment of the present utility model.

[0022] In the figure: A - filling pipeline cleaning device 1 - coupling shaft, 2 - upper edge power assembly, 3 - upper fan blade cleaning assembly, 4 - intermediate power assembly, 5 - lower fan blade cleaning assembly, 6 - lower edge power assembly, 7 - small housing, 8 - filter screen, 9 - air inlet hole, 10 - air outlet hole, 11 - main body, 12 - fan blade, 13 - cleaning rubber strip, 14 - large housing, 15 - large filter screen, 16 - large air inlet hole, 17 - large air outlet hole, 18 - positioning remote sensing controller, 19 - sponge ball, 20 - hinge shaft, 21 - limiting column, 22 - rubber sleeve, 23 - vertical filling drilling pipeline, 24 - filling pipeline laid in the underground roadway, 25 - high-pressure pump, 26 - generator, 27 - chamber. Specific Embodiments

[0023] To make the above features and advantages of the present utility model more obvious and understandable, the following specific embodiments are given and described in detail in conjunction with the accompanying drawings.

[0024] As Figures 1 - 2 shown, a filling pipeline cleaning device includes a vertically arranged coupling shaft 1. The coupling shaft is successively provided with an upper edge power assembly 2, an upper fan blade cleaning assembly 3, an intermediate power assembly 4, a lower fan blade cleaning assembly 5, and a lower edge power assembly 6 from top to bottom. The upper edge power assembly and the lower edge power assembly have the same structure, and each includes a small housing 7. Two groups of filter screens 8 are arranged at intervals up and down in the small housing. An air inlet hole 9 is opened at the lower end of the small housing, and an air outlet hole 10 is opened at the upper end of the small housing. The upper fan blade cleaning assembly and the lower fan blade cleaning assembly have the same structure, and each is composed of a main body 11 fixedly connected to the coupling shaft and fan blades 12 symmetrically arranged around the center of the main body. Cleaning rubber strips 13 for cleaning the inner wall of the pipeline are fixedly arranged on the outer edges of the fan blades. The intermediate power assembly includes a large housing 14. Two groups of large filter screens 15 are arranged at intervals up and down in the large housing. A large air inlet hole 16 is opened at the lower end of the large housing, and a large air outlet hole 17 is opened at the upper end of the large housing. Regarding the rotation of the fan blades during the falling process and the setting angle of the fan blades, they are all common settings and will not be elaborated here.

[0025] In the embodiment of the present utility model, a positioning remote sensing controller 18 is arranged in both the large housing and the small housing.

[0026] In the embodiment of the present utility model, a spherical sponge ball 19 is sleeved outside the small housing, and the air inlet hole and the air outlet hole both penetrate through the sponge ball.

[0027] In the embodiment of the present utility model, a power pump can be arranged in both the large housing and the small housing to cooperate with the air inlet and outlet holes to complete air suction and jetting.

[0028] In the embodiment of the present utility model, the coupling shaft is rotatably connected to the large housing and is connected to the generator 26 inside the housing. Due to the rapid descent of the device under the action of the high-pressure pump, the height decreases, the potential energy decreases, the kinetic energy increases and drives the fan blade to rotate. The rotation of the fan blade drives the coupling shaft to rotate, and then the generator is linked, that is, the potential energy is converted into the kinetic energy supplied to the generator, realizing energy conversion and storage. The stored energy can be used as the power supplement source for supplying the positioning remote sensing controller and driving air suction and exhaust. As for the generator and the power storage, they are all general settings and will not be elaborated here. A chamber 27 for installing the generator and the power storage is arranged in the large housing.

[0029] In the embodiment of the present utility model, one end of the large filter screen at the lower part is hinged to the inner wall of the large housing through a hinge shaft 20, and a limiting column 21 is arranged at the other end on the side close to the large air inlet. The large filter screen at the upper part is symmetrically arranged with the large filter screen at the lower part about the center. The principle is that a limiting column is also arranged at the hinged end on the side close to the air outlet, and the limiting swing directions of the two large filter screens are opposite. The setting mode of the filter screen is the same as that of the large filter screen. Avoidance groove strips for avoiding interference with the coupling shaft are arranged on the large filter screens.

[0030] In the embodiment of the present utility model, the large housing is cylindrical, and a rubber sleeve 22 is coaxially sleeved on its outer periphery.

[0031] In the embodiment of the present utility model, the pipeline is composed of a vertical filling borehole pipeline 23 and a filling pipeline 24 laid in the underground roadway horizontally. A high-pressure pump 25 for sending the filling pipeline cleaning device is arranged at the top of the vertical filling borehole pipeline.

[0032] The working principle of the embodiment of the present utility model: First, determine the diameter size of the underground filling pipeline to be cleaned, so as to select a self-aspirating pipeline cleaning device with a suitable size, and make the elastic expansion and contraction range of the rubber column and the sponge ball fall within the best interval.

[0033] Wet the sponge ball at the end (upper end) of the self-aspirating pipeline cleaner, so that the front end first "dry sweeps" and the rear end then "wet mops" to achieve the effect of secondary effective cleaning.

[0034] Determine the vertical height of the filling borehole from the ground to the well, so as to calculate the potential energy, and calculate the pipeline resistance in combination with the material properties of the vertical pipeline, and accordingly select the filling pipeline cleaning device with appropriate power;

[0035] Determine the horizontal length of the downhole filling pipeline and combine it with the vertical drilling height to select the pump pressure value and pumping time of the high-pressure pump.

[0036] When the cleaning of the underground filling pipe begins, the self-pneumatic cleaning device A is sent into the pipe with a high-pressure pump. Under the action of high pressure and gravity, the first cleaning stage begins. The sponge ball and rubber cleaning column start cleaning immediately, and the fan blade cleaning piece starts to rotate under the action of the falling rapid airflow. On the one hand, the energy generated by the rotation is stored in the power system through the connecting shaft; on the other hand, the cleaning sponge ball or cleaning rubber strip at the tail end of the fan blade starts to spirally clean the pipe wall to further clean the residue on the pipe wall; in addition, the rotation of the fan blade will produce a certain resistance, which can buffer part of the high speed of the self-pneumatic cleaning device under the action of high pressure and gravity, further ensuring the cleaning time and improving the cleaning efficiency.

[0037] In the embodiment of the utility model, as the self-pumping power cleaning device enters the underground horizontal tunnel filling pipeline from the filling vertical drilling hole and runs a certain distance under the inertia in the pipeline, the power effect of the high-pressure pump and the gravity and its speed inertia weakens, and when it is about to be insufficient to support the cleaning pipe forward, that is, when the remote sensing monitoring detects that the speed of the self-pumping power cleaning device is reduced to a certain value, it enters the second stage of cleaning, and the self-pumping power system is started, and a large amount of gas is sucked into the air inlet and the large air inlet in the forward direction of the cleaning device, and the air outlet in the opposite direction of the forward direction of the cleaning device sprays backward. On the one hand, the recoil force of the gas is used to push the cleaning device forward, and on the other hand, this action forms a local air pressure difference between the front and the back, which can contribute positive work to the forward movement of the cleaning device. In addition, there are two layers of filters in the power system, which automatically open the filter or large filter at the proximal end of the forward direction, and close the filter or large filter at the far end of the forward direction, so that the particles entering through the air hole are collected in the system cavity. When inhaling, due to the large work, a part of the pipeline attachments will also be sucked in, similar to a "vacuum cleaner". At the same time, the fan blade cleaning piece is pulled by the co-directional rapid airflow and will rotate. During the spiral cleaning, the kinetic energy can be converted into electrical energy through the mechanical main shaft and stored in the power system to provide energy for the suction and jet injection, thereby accelerating the forward cleaning cycle and highlighting the sustainable advantages of this system.

[0038] The cleaning device of the device in the vertical borehole uses the high-pressure gas of the high-pressure pump and the potential energy formed in the vertical falling process to clean the vertical filling pipeline, and accumulates energy to activate the power system in the cleaning device; when the cleaning device falls to the horizontal filling pipeline part underground, the cleaning device uses the accumulated kinetic energy in front and uses its own power system to start cleaning the horizontal filling pipeline. When the cleaning device reaches a certain distance from the last part, the power system of the cleaning device gradually slows down. When it reaches the end of the last section of the pipeline, the power system stops working, and all the gas in the pipeline is quickly sprayed forward, blowing the debris in front to the goaf. On the one hand, the vertical height difference from the filling borehole to the underground is used to calculate the potential energy, and then the potential energy is converted into mechanical energy, so that the cleaning device can work automatically. On the other hand, the high-pressure gas is flushed into the pipeline by utilizing the closedness of the filling pipeline, and the cleaning device uses this part of the high-pressure gas to realize the early cleaning of the pipeline.

[0039] The utility model is not limited to the above-mentioned best implementation mode. Anyone can derive other forms of a filling pipe cleaning device under the inspiration of the utility model. All equivalent changes and modifications made according to the scope of the patent application of the utility model shall fall within the scope of the utility model.

Claims

1. A filling pipeline cleaning device, characterized in that: The invention comprises a vertically arranged connecting shaft, on which an upper edge power assembly, an upper blade cleaning assembly, an intermediate power assembly, a lower blade cleaning assembly and a lower edge power assembly are sequentially arranged from top to bottom. The upper edge power assembly and the lower edge power assembly have the same structure and both comprise a small shell, in which two groups of filter screens are arranged at intervals from top to bottom in the small shell, an air inlet hole is provided at the lower end of the small shell, and an air outlet hole is provided at the upper end; the upper blade cleaning assembly and the lower blade cleaning assembly have the same structure and both consist of a main body fixedly connected to the connecting shaft and blades symmetrically arranged on the main body, and a cleaning rubber strip for cleaning the inner wall of the pipe is fixed on the outer edge of the blade; the intermediate power assembly comprises a large shell, in which two groups of large filter screens are arranged at intervals from top to bottom in the large shell, a large air inlet hole is provided at the lower end of the large shell, and a large air outlet hole is provided at the upper end.

2. A filling pipe cleaning device according to claim 1, characterized in that: Positioning remote sensing controllers are arranged in both the large shell and the small shell.

3. A filling pipe cleaning device according to claim 1, characterized in that: The small shells are all sleeved with spherical sponge balls, and the air inlet and outlet holes are both penetrated by the sponge balls.

4. A filling pipe cleaning device according to claim 1, characterized in that: One end of the large filter located at the bottom is hinged to the inner wall of the large shell through a hinge shaft, and the other end is provided with a limit column near the large air inlet side. The large filter located at the upper part is symmetrically arranged with the center of the large filter located at the lower part. The hinged end is provided with a limit column near the air outlet side, and the two large filter limit swing directions are opposite.

5. A filling pipe cleaning device according to claim 1, characterized in that: The large shell is cylindrical, and a rubber sleeve is coaxially sleeved on its outer periphery.

6. A filling pipe cleaning device according to claim 1, characterized in that: The pipeline consists of a vertical filling drilling pipeline and a horizontal filling pipeline laid in an underground tunnel. A high-pressure pump for sending a filling pipeline cleaning device is arranged at the top of the vertical filling drilling pipeline.

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