Cleaning water collecting device and method

Abstract

The invention relates to the technical field of collection equipment detection, in particular to a sweeping water collection device and method, and aims at solving the problem that in the prior art, the service life of equipment is shortened due to coal slime flow splashing. In the cleaning water collecting device, the conveying structure comprises the conveying piece and the collecting piece, the conveying piece is rotatably arranged on the collecting piece, and the collecting piece is used for collecting coal slime falling from the conveying piece. The water collecting tank is fixedly arranged at the coal slime collecting end of the collecting part, and the coal slime collecting end of the collecting part extends to a collecting opening of the water collecting tank and is used for collecting the coal slime collected by the conveying part; the discharge end of the water collecting tank is communicated with the coal slime collecting unit and is used for discharging coal slime. The cleaning water collecting device and method are used for cleaning coal slime in a coal preparation plant, and the service life of equipment is prolonged.

Description

Technical Field

[0001] This disclosure relates to the field of equipment testing technology, and in particular to a cleaning water collection device and method. Background Technology

[0002] Coal preparation plants, as a crucial link in coal processing, primarily utilize belt conveyors for material transport. During material transport, spillage and scattering are inevitable, leading to the accumulation of coal dust and loose material in the belt corridor, beneath the belt surface, and on both sides of the belt. To ensure safe operation, coal preparation plants typically use high-pressure water jets to flush the belt conveyor system during equipment shutdowns to remove these accumulations. During flushing, the water mixes with coal dust, coal fragments, coal preparation reagents, and mineral processing media to form a high-solids-content, highly corrosive coal slurry.

[0003] Currently, cement or metal water barriers are installed on both sides or at the lower end of the conveyor belt corridor to block and guide coal slurry water towards the drainage ditch. However, when the coal slurry flows down from a height, it has a tremendous impact force and velocity. Simple water barriers are insufficient to effectively block all the water flow, resulting in significant overflow and splashing of coal slurry water, leading to low collection efficiency. Secondly, in some sites, coal slurry water is allowed to flow onto the corridor floor and into the lower-level drainage ditch. This not only creates a chaotic water flow path and pollutes the surrounding environment, but also causes splashing water droplets to adhere to nearby electrical equipment, machinery, and steel structure surfaces. Furthermore, the coal slurry water contains corrosive chemicals and media, which, over time, accelerate equipment corrosion and rust, significantly shortening equipment lifespan, increasing maintenance costs, and creating safety hazards. In addition, cleaning the aforementioned rust requires multiple workers, resulting in high labor intensity, low efficiency, and significant personal safety risks for personnel working in slippery and chaotic environments.

[0004] Therefore, how to solve the problem of reduced equipment lifespan due to coal slurry splashing in existing technologies is one of the important problems that urgently need to be solved in this field. Summary of the Invention

[0005] In view of this, the present disclosure provides a sweeping water collection device and method to solve the problem of reduced equipment service life caused by coal slurry splashing in the prior art.

[0006] According to one aspect of this disclosure, a sweeping water collection device is provided, the sweeping water collection device comprising: The conveying structure includes a conveying component and a collecting component. The conveying component is rotatably mounted on the collecting component, which is used to collect the coal slurry that falls from the conveying component. A water collection trough is fixedly installed at the coal slurry collection end of the collecting component, and the coal slurry collection end of the collecting component extends to the collection port of the water collection trough for collecting the coal slurry collected by the conveying component; the discharge end of the water collection trough is connected to the coal slurry collection unit for discharging the coal slurry.

[0007] According to one aspect of the present disclosure, a cleaning water collection device includes a water collection tank comprising a collection section and a discharge section, wherein the collection section is connected to the discharge section; The collecting unit includes a first component, a second component, and a third component. The first component has a conical structure, the second component is fixedly connected to the first component, and the third component is fixedly connected to the second component.

[0008] According to one aspect of the present disclosure, the cleaning water collection device has a first component with a through hole for discharging coal slurry, and the discharge part is connected to the through hole.

[0009] According to one aspect of the cleaning water collection device of this disclosure, the second component has an arc-shaped structure.

[0010] According to one aspect of the cleaning water collection device of this disclosure, the third component is further provided with a baffle for blocking splashed coal slurry.

[0011] According to one aspect of the cleaning water collection device of this disclosure, the water collection tank is made of a corrosion-resistant material; The cross-section of the water collection tank is U-shaped or V-shaped.

[0012] According to one aspect of the present disclosure, the sweeping water collection device further includes a plurality of mounting members disposed on a second component of the water collection tank for fixing the water collection tank to the collecting members.

[0013] According to another aspect of this disclosure, a method for collecting cleaning water is also provided, applied to the aforementioned cleaning water collection device, the cleaning water collection method comprising: The size of the water collection trough is determined based on the structural parameters of the collecting component, and the water collection trough is installed at the coal slime collection end of the collecting component; The installation direction of the collection port of the water collection trough is determined according to the flow direction of the coal slime; The conveyor structure is activated, causing cleaning water carrying coal dust and materials to fall from a height into the water collection trough, and the coal sludge flows along the discharge end of the water collection trough to the coal sludge collection unit.

[0014] According to one aspect of the cleaning water collection method of this disclosure, the parameters of the water collection trough are determined according to different parameters of the collecting component, and the water collection trough is installed at the coal slime collection end of the collecting component, which further includes: The tilt angle of the water collection tank is detected by the detection unit, so that the tilt angle of the water collection tank conforms to the preset angle.

[0015] According to one aspect of the present disclosure, the cleaning water collection trough is installed in sections along the direction from the conveying end to the collecting end of the conveying structure; The parameters of the water collection tanks of the two adjacent sections are different, and the two adjacent sections are connected by a seal.

[0016] The above-mentioned technical solutions adopted in the embodiments of this disclosure can achieve the following beneficial effects: In the above-mentioned cleaning water collection device, corrosion-resistant materials are used, combined with U-shaped or V-shaped cross-sections, which not only resist the corrosion of cleaning water containing agents and media, but also guide the directional flow of coal slurry through the trough structure, reducing the indirect corrosion of equipment by residual accumulation, effectively solving the problem of coal slurry water splashing and corroding surrounding equipment in the prior art. At the same time, the first component quickly guides and discharges coal slurry through through holes, the second component buffers the impact force of coal slurry flow to avoid high-speed coal slurry splashing, and the baffle of the third component further blocks side splash coal slurry, providing double protection to prevent coal slurry water from overflowing and contacting equipment, thus extending the service life of the equipment. Secondly, the water collection trough is arranged in sections in the conveying structure, which is suitable for long-distance conveyor belts. The sealing connection eliminates gaps between sections, preventing coal slurry water leakage and corrosion of the equipment below, effectively solving the hidden danger of splashing corrosion caused by natural falling in the prior art. In addition, by calibrating the tilt angle of the water collection tank through the detection unit and combining it with the collection port direction set according to the coal slurry flow direction, the coal slurry is ensured to be discharged quickly and smoothly, reducing secondary splashing caused by stagnation in the tank, avoiding prolonged contact of corrosive media with the equipment, extending the service life of the equipment, and effectively solving the problem of reduced equipment service life caused by coal slurry splashing in the existing technology. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the cleaning water collection device provided in the embodiments of this disclosure; Figure 2 A schematic diagram of the collection unit structure provided in an embodiment of this disclosure; Figure 3 This is a schematic flowchart of a cleaning water collection method provided in an embodiment of the present disclosure.

[0019] Figure label: 1-Conveying structure, 11-Conveying component, 12-Collecting component, 2-Water collection tank, 21-Collection section, 211-First component, 212-Second component, 213-Third component, 22-Discharge section, 3-Coal slime collection unit, 4-Installation component. Detailed Implementation

[0020] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0021] It should be understood that the steps described in the method embodiments of this disclosure may be performed in different orders and / or in parallel. Furthermore, the method embodiments may include additional steps and / or omit the steps shown. The scope of this disclosure is not limited in this respect.

[0022] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Definitions of other terms will be given in the description below. It should be noted that the concepts of "first", "second", etc., used in this disclosure are only used to distinguish different devices, modules, or units, and are not intended to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0023] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0024] The names of messages or information exchanged between multiple devices in the embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of such messages or information.

[0025] Coal preparation plants, as a crucial link in coal processing, primarily utilize belt conveyors for material transport. During material transport, spillage and scattering are inevitable, leading to the accumulation of coal dust and loose material in the belt corridor, beneath the belt surface, and on both sides of the belt. To ensure safe operation, coal preparation plants typically use high-pressure water jets to flush the belt conveyor system during equipment shutdowns to remove these accumulations. During flushing, the water mixes with coal dust, coal fragments, coal preparation reagents, and mineral processing media to form a high-solids-content, highly corrosive coal slurry.

[0026] Currently, cement or metal water barriers are installed on both sides or at the lower end of the conveyor belt corridor to block and guide coal slurry water towards the drainage ditch. However, when the coal slurry flows down from a height, it has a tremendous impact force and velocity. Simple water barriers are insufficient to effectively block all the water flow, resulting in significant overflow and splashing of coal slurry water, leading to low collection efficiency. Secondly, in some sites, coal slurry water is allowed to flow onto the corridor floor and into the lower-level drainage ditch. This not only creates a chaotic water flow path and pollutes the surrounding environment, but also causes splashing water droplets to adhere to nearby electrical equipment, machinery, and steel structure surfaces. Furthermore, the coal slurry water contains corrosive chemicals and media, which, over time, accelerate equipment corrosion and rust, significantly shortening equipment lifespan, increasing maintenance costs, and creating safety hazards. In addition, cleaning the aforementioned rust requires multiple workers, resulting in high labor intensity, low efficiency, and significant personal safety risks for personnel working in slippery and chaotic environments.

[0027] To address the aforementioned problems, this exemplary embodiment provides a cleaning water collection device and method to solve the problem of reduced equipment lifespan caused by coal slurry splashing in the prior art.

[0028] A cleaning water collection device according to an embodiment of the present disclosure will now be described in detail with reference to the accompanying drawings.

[0029] Figure 1 This is a schematic diagram of the cleaning water collection device provided in an embodiment of this disclosure. Figure 2 A schematic diagram of the collection unit structure provided in the embodiments of this disclosure, as shown below. Figures 1-2 As shown, in the above-mentioned cleaning water collection device, the conveying structure 1 includes a conveying component 11 and a collecting component 12. The conveying component 11 is rotatably mounted on the collecting component 12, and the collecting component 12 is used to collect the coal sludge that falls from the conveying component 11. The water collection trough 2 is fixedly mounted on the coal sludge collecting end of the collecting component 12, and the coal sludge collecting end of the collecting component 12 extends to the collecting port of the water collection trough 2, for collecting the coal sludge collected by the conveying component 11. The discharge end of the water collection trough 2 is connected to the coal sludge collection unit 3 for discharging the coal sludge.

[0030] In practical applications, such as Figures 1-2 As shown, the conveyor 11 is rotatably mounted on the collector 12. During material transport and cleaning operations, coal dust and materials adhering to the surface of the conveyor 11 are detached with the cleaning water and fall into the collector 12 below. After receiving the fallen coal sludge, the collector 12 guides the coal sludge to its coal sludge collection end through its own structure. This collection end extends to the collection port of the water collection trough 2, allowing the coal sludge to flow smoothly into the water collection trough 2. The coal sludge flowing into the water collection trough 2 flows naturally along the trough to the discharge end. Since the discharge end is connected to the coal sludge collection unit 3, it should be understood that the above-mentioned collection unit can be a ditch or a sludge collection pool, which will not be described in detail here. Finally, the coal sludge is concentrated and transported to the collection unit, completing the closed loop from collection to guidance to discharge.

[0031] As can be seen from the above implementation process, if Figures 1-2 As shown, the connection design between the collecting component 12 and the water collection tank 2 forms a continuous guiding channel from the conveying component 11 to the collecting component and then to the water collection tank 2, preventing coal sludge from leaving the path during transfer and solving the problem of coal sludge splashing everywhere in the prior art. Secondly, the coal sludge is directly discharged through a closed-loop channel, preventing the corrosive coal sludge water from contacting surrounding equipment, reducing equipment corrosion and aging, and significantly extending equipment service life. Furthermore, it eliminates the need for cleaning water and coal sludge scattered on the plant floor, preventing inspectors and operators from slipping or being injured by splashed coal sludge, thus improving operational safety. In addition, no special personnel are required to clean up splashed coal sludge water; only routine maintenance of the collection-discharge system is needed, reducing costs and improving cleaning efficiency.

[0032] like Figure 2 As shown, the water collection tank 2 includes a collection section 21 and a discharge section 22, which are connected. The first component 211 has a conical structure, the second component 212 is fixedly connected to the first component 211, and the third component 213 is fixedly connected to the second component 212.

[0033] In practical applications, such as Figure 2 As shown, cleaning water carrying coal dust and materials falls from a height, first contacting the conical first component 211 of the collection section. The conical structure guides the coal slurry to flow quickly, avoiding dispersion and splashing. The coal slurry then flows into the arc-shaped second component 212. It should be understood that the second component 212 has a 50mm arc design. The second component 212 buffers the impact force of the coal slurry flow, reduces the flow velocity, and prevents splashing due to excessive impact force. The third component 213 receives the coal slurry conveyed by the second component 212, and is also equipped with a baffle to block splashed coal slurry, forming a closed flow channel to further block lateral splashing and ensure directional flow of coal slurry. After being constrained by the collection section, the coal slurry flows through the through hole of the first component 211 into the connected discharge section 22, and is finally conveyed by the discharge section 22 to the coal slurry collection unit 3, completing the collection-guidance-discharge closed loop.

[0034] As can be seen from the above implementation process, if Figure 2 As shown, the first component 211 has a significant confluence effect, solving the problem of coal slurry dispersion in long-distance conveyor belts, avoiding overflow caused by concentrated impact at a single point, and improving collection efficiency. The arc-shaped second component 212 precisely buffers the impact of high-speed coal slurry flow, curbing splashing at the source and overcoming the shortcomings of existing water-blocking edges that cannot completely block it. The third component 213 is also equipped with a baffle to shield splashed coal slurry, forming a fully enclosed guiding space, completely eliminating lateral splashing, protecting surrounding equipment from corrosion, and extending equipment life. The collection section and the discharge section 22 are connected, realizing continuous operation of coal slurry confluence, buffering, splash prevention, and discharge, eliminating the need for manual cleaning of splashed coal slurry, reducing labor costs, and improving cleaning efficiency.

[0035] For example, such as Figure 2 As shown, the water collection tank 2 is made of corrosion-resistant material. The cleaning water from the coal preparation plant contains corrosive components such as chemicals, media, and coal slurry. The corrosion-resistant material effectively resists acid and alkali corrosion, avoiding the problems of easy rusting and damage associated with traditional ordinary steel. This significantly improves the structural stability and service life of the water collection tank 2 under complex working conditions, reducing equipment replacement frequency and maintenance costs. Secondly, the corrosion-resistant material prevents defects such as leakage and cracking caused by media corrosion, ensuring that the water collection tank 2 maintains its airtightness and structural integrity for a long time, avoiding secondary pollution caused by cleaning water leakage, ensuring the continuity of the coal slurry water collection path, and ensuring the complete collection of cleaning water.

[0036] Based on this, the cross-section of the water collection tank 2 is U-shaped or V-shaped. The U-shaped or V-shaped structure has a natural flow guiding function, which can form a smooth flow channel interface, reduce the impact kinetic energy when the coal slurry flows down, and avoid the splashing problem caused by the rigid collision between the high-speed water flow and the tank wall. The third component 213 is also equipped with a baffle to further constrain the water flow boundary, eliminate lateral splashing, and solve the problem of water flow scattering caused by the structural defects of the traditional water collection tank 2. Secondly, the U-shaped or V-shaped tank cross-section has good volume adaptability, which can adapt to different cleaning water volume conditions, ensuring that the coal slurry flowing down from the conveyor belt surface is fully collected into the tank, avoiding the leakage caused by insufficient collection area or poor flow channel guidance. The smooth tank wall and arc-shaped cross-section design can reduce water flow resistance, promote the smooth flow of coal slurry, and reduce the risk of deposition and blockage.

[0037] For example, such as Figure 2 As shown, the mounting component 4 is installed on the second component 212 of the water collection tank 2, and is used to fix the water collection tank 2 to the collecting component 12. The mounting component 4 and the second component 212 of the water collection tank 2 are integrated to form a stable force transmission structure, which firmly fixes the water collection tank 2 to the collecting component 12, avoiding loosening and displacement caused by impact due to traditional simple fixing methods. This ensures that the water collection tank 2 maintains installation accuracy under long-term high-impact conditions and prevents problems such as coal slurry splashing and collection failure caused by fixing failure. The coordinated design of the mounting component 4 and the second component 212 of the water collection tank 2 can optimize the force distribution, so that the self-weight of the water collection tank 2, the impact load of the coal slurry flow, and the weight of the accumulated liquid are evenly transferred to the collecting component 12, avoiding tank deformation or installation point damage caused by local stress concentration, and further ensuring the structural integrity and long-term service stability of the water collection tank 2. Secondly, the mounting component 4 precisely aligns the water collection tank 2 and the collecting component 12 through its fixing function, ensuring a tight fit between the water collection tank 2's inlet and guide channel and the collecting component 12, eliminating installation gaps. This design prevents cleaning water from leaking at the connection point, eliminates corrosive coal slurry water from contacting surrounding equipment or seeping into the ground, and completely solves the secondary pollution problems caused by water splashing and leakage in traditional natural descent methods.

[0038] Figure 3 This is a schematic flowchart of the cleaning water collection method provided in the embodiments of this disclosure, as shown below. Figure 3 As shown, the sweeping water collection method is applied to the above-mentioned sweeping water collection device, and the sweeping water collection method includes: S301: Determine the size of the water collection trough according to the structural parameters of the collecting component, and install the water collection trough at the coal slime collection end of the collecting component.

[0039] S302: Determine the installation direction of the collection port of the water collection trough according to the flow direction of the coal slime.

[0040] S303: Start the conveying structure so that the cleaning water carrying coal dust and materials falls from a height into the water collection tank, and the coal sludge flows along the discharge end of the water collection tank to the coal sludge collection unit.

[0041] Compared with the prior art, the beneficial effects of the sweeping water collection method provided in this disclosure are similar to the beneficial effects of the sweeping water collection device, and will not be elaborated here.

[0042] For example, determining the parameters of the water collection trough according to different parameters of the collecting component and installing the water collection trough on the coal slime collecting end of the collecting component further includes: detecting the tilt angle of the water collection trough based on the detection unit, so that the tilt angle of the water collection trough conforms to the preset angle.

[0043] In practical applications, the parameters of the coal slime collection end of the collecting device can be understood as the interface size, load-bearing capacity, and flow path of the collecting device, which will not be specifically listed here. These parameters directly determine the inflow conditions of the coal slime flow. Customizing key parameters such as the length, width, opening size, and mounting hole positions of the water collection trough based on these parameters ensures a seamless connection between the trough and the collecting device. This avoids installation gaps caused by size mismatches, prevents leakage or splashing of coal slime at the connection point, and solves the problems of poor adaptability and incomplete collection associated with traditional non-customized water collection troughs. Furthermore, the impact load borne by the water collection trough can be evenly transferred to the collecting device through a matching installation structure, avoiding trough deformation or collecting device damage caused by localized stress concentration, and improving the structural stability and service life of the entire system under high-impact conditions.

[0044] For example, the water collection tank is installed in sections along the direction from the conveying end to the collecting end of the conveying structure. The parameters of the water collection tanks of two adjacent sections are different, and the two adjacent sections are connected by a seal.

[0045] In practical applications, the conveyor structure of coal preparation plants exhibits a significant drop gradient from the conveying end to the collection end. The impact kinetic energy and flow distribution of coal slurry show a difference in operating conditions, with high impact near the end and stable flow far away. The segmented installation design allows for targeted layout of water collection troughs according to the operating characteristics of different sections, avoiding the localized collection failure problem caused by the single-condition adaptability of integral water collection troughs. This achieves precise coverage across the entire area from the conveying end to the collection end, improving the integrity of cleaning water collection. Secondly, the segmented structure can be disassembled into independent modules, facilitating transportation, hoisting, and assembly within the complex space of the conveyor belt corridor. It is particularly suitable for the limited working space and construction paths within the plant, lowering the technical threshold for overall installation. Maintenance and replacement of individual water collection trough sections can be carried out independently without shutting down and disassembling the entire collection system, shortening the maintenance window, reducing the impact on the coal preparation plant's production schedule, and improving the convenience of operation and maintenance.

[0046] The above description is merely an illustration of some embodiments of this disclosure and the technical principles employed. Those skilled in the art should understand that the scope of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features disclosed in this disclosure that have similar functions.

[0047] While specific embodiments of this disclosure have been described in detail by way of example, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of this disclosure. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of this disclosure. The scope of this disclosure is defined by the appended claims.

Claims

1. A cleaning water collection device, characterized in that, The sweep water collection device includes: A conveying structure, comprising a conveying component and a collecting component, wherein the conveying component is rotatably mounted on the collecting component, and the collecting component is used to collect coal slurry falling from the conveying component; A water collection trough is fixedly installed at the coal slurry collection end of the collecting component, and the coal slurry collection end of the collecting component extends to the collection port of the water collection trough for collecting the coal slurry collected by the conveying component; the discharge end of the water collection trough is connected to the coal slurry collection unit for discharging the coal slurry.

2. The cleaning water collection device according to claim 1, characterized in that, The water collection tank includes a collection section and a discharge section, and the collection section is connected to the discharge section; The collecting unit includes a first component, a second component, and a third component. The first component has a conical structure, the second component is fixedly connected to the first component, and the third component is fixedly connected to the second component.

3. The cleaning water collection device according to claim 2, characterized in that, The first component has a through hole for discharging coal slurry, and the discharge part is connected to the through hole.

4. The cleaning water collection device according to claim 2, characterized in that, The second component has an arc-shaped structure.

5. The cleaning water collection device according to claim 2, characterized in that, The third component is also equipped with a baffle, which is used to block splashed coal slurry.

6. The cleaning water collection device according to claim 1, characterized in that, The water collection tank is made of corrosion-resistant material; The cross-section of the water collection tank is U-shaped or V-shaped.

7. The cleaning water collection device according to claim 1, characterized in that, The sweeping water collection device also includes multiple mounting components, which are disposed on the second component of the water collection tank and are used to fix the water collection tank on the collection component.

8. A method for collecting cleaning water, applied to the cleaning water collection device according to any one of claims 1-7, characterized in that, The method for collecting cleaning water includes: The size of the water collection trough is determined according to the structural parameters of the collecting component, and the water collection trough is installed at the coal slime collecting end of the collecting component; The installation direction of the collection port of the water collection trough is determined according to the flow direction of the coal slime; The conveyor structure is activated, causing cleaning water carrying coal dust and materials to fall from a height into the water collection trough, and the coal sludge flows along the discharge end of the water collection trough to the coal sludge collection unit.

9. The method for collecting cleaning water according to claim 8, characterized in that, Determining the parameters of the water collection trough based on the different parameters of the collecting device, and installing the water collection trough at the coal slime collection end of the collecting device, also includes: The tilt angle of the water collection tank is detected by the detection unit, so that the tilt angle of the water collection tank conforms to the preset angle.

10. The method for collecting cleaning water according to claim 8, characterized in that, The water collection tank is installed in sections along the direction from the conveying end to the collecting end of the conveying structure; The parameters of the water collection tanks of the two adjacent sections are different, and the two adjacent sections are connected by a seal.

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