Belt cleaning device and process

Abstract

The invention relates to a belt cleaning device and process, and belongs to the technical field of belt cleaning. Comprising a first sweeper for cleaning coal, a second spraying device and a third sweeper which are sequentially arranged at intervals, in the running state of the coal belt conveyor, the lower surface of a lower-layer belt can be cleaned for the first time through the first sweeper for cleaning coal, and then the surface of the lower-layer belt is sprayed with water and washed through the second spraying device; the first sweeper can clean coal on the lower surface of the lower-layer belt again, the second sweeper can clean float coal on the lower surface of the lower-layer belt again to ensure the coal cleaning effect, then the third sweeper can effectively and thoroughly clean water on the belt surface of the lower-layer belt and residual sludge without float coal cleaning, the first sweeper cleans coal, and a float coal sludge recovery device is arranged below the second spraying device and the third sweeper. The method has the following beneficial effects that the working intensity of field operating personnel is relieved to a great extent, the sludge and float coal of the belt are effectively controlled, and the field quality standardization is also greatly improved.

Description

Technical Field

[0001] The invention relates to a belt cleaning device and process, belonging to the technical field of belt cleaning. Background Art

[0002] In the process of coal mining and transportation, the belt conveyor is an important tool for coal transportation. Its operating efficiency and environmental impact are directly related to the smooth progress of coal mine production and environmental protection. However, in long-term operation, especially the return belt, due to coal residue and dust generated during transportation, it will not only reduce the service life of the belt and increase maintenance costs, but also cause serious environmental pollution and affect the health of operators. Therefore, the development of efficient and environmentally friendly return belt cleaning devices is of great significance to improving coal mine production efficiency and reducing environmental pollution.

[0003] The current technology is not comprehensive and has the following disadvantages: 1. The belt bottom cleaner currently used underground is made of waste materials. The cleaner has a single function and can meet the on-site production requirements in a short period of time. With the commissioning of modern intelligent mining equipment, the mining production and footage tasks are gradually increasing. After the original belt cleaner has been used for a long time, the cleaner is damaged more severely, resulting in a gradual decrease in the coal cleaning effect. After the floating coal sludge flows into the tunnel, it takes a lot of time to clean it up, which affects the efficiency of on-site operators and has a great impact on the civilized construction of the tunnel and the standardization of on-site quality.

[0004] 2. With the continuous development of intelligent coal mines, the amount of coal passing through the belt conveyor in underground coal mines has continued to increase, resulting in the formation of many pits of different sizes on the belt surface. Some coal slime attached to the pits on the belt surface cannot be cleaned up by the scraper cleaner. Even if a few more belt cleaners are added, the adhesion problem of the material cannot be completely eradicated.

[0005] 3. The working surface of the belt will stick to the burning coal, which will cause the redirection roller that the working surface of the belt contacts to stick seriously. The roller after sticking will vibrate, make abnormal noises, and wear the rubber during operation, which can easily cause the belt conveyor to deviate and cause damage. At the same time, after the working surface of the belt is in friction contact and extrusion with the lower roller, the sticky coal will gradually dry and cause the belt in the belt corridor to vibrate and raise dust, causing environmental pollution and noise pollution.

[0006] In order to solve one of the above problems, a belt cleaning device and process are urgently needed. Summary of the invention

[0007] In view of the above deficiencies in the prior art, the technical problem to be solved by the present invention is: how to achieve the novel structure and mutual matching combination of the first cleaner for coal cleaning, the second spray device, the third cleaner, and the floating coal sludge recovery device, and to provide a belt cleaning device and process for this purpose.

[0008] The belt cleaning device described in the present invention is installed below a coal belt conveyor. The coal belt conveyor has a frame, an upper belt and a lower belt, and is characterized in that it includes a first cleaner for cleaning coal, a second spray device and a third cleaner which are arranged in sequence at intervals. When the coal belt conveyor is in operation, the lower belt passes through the first cleaner for cleaning coal, the second spray device and the third cleaner in sequence. The first cleaner can be used to clean the lower surface of the lower belt for the first time, and then the second spray device is used to spray water and rinse the surface of the lower belt, and the floating coal on the lower surface of the lower belt is cleaned again to ensure the coal cleaning effect. Then the third cleaner can effectively and thoroughly clean the moisture on the surface of the lower belt and the remaining floating coal sludge that has not been cleaned off. A floating coal sludge recovery device is provided below the first cleaner for cleaning coal, the second spray device and the third cleaner.

[0009] It is easy to install, light in weight, and adjustable in position. It can be disassembled and moved at any time, which facilitates the maintenance of the belt cleaning device. The application effect is excellent, which greatly reduces the workload of on-site operators, effectively controls belt sludge and floating coal, and greatly improves on-site quality standardization. While cleaning the working surface of the belt, it can effectively recycle the fuel coal, save energy, and reduce production costs. Therefore, it can be installed on the upper and lower belts of coal mines on a large scale.

[0010] Preferably, the floating coal sludge recovery device includes a slag trough, which is an open structure that is wide at the top and narrow at the bottom. The front and rear side walls of the slag trough are respectively integrally provided with a front side guard plate and a rear side guard plate, and the front side guard plate and the rear side guard plate are respectively installed with slag trough mounting hangers connected to the frame. The first-pass coal cleaning device, the second-pass spray device, and the third-pass sweeper are all arranged between the front side guard plate and the rear side guard plate. A stainless steel filter plate is arranged inside the slag trough, and the stainless steel filter plate separates the slag trough into an upper slag collecting chamber and a lower filtrate recovery chamber. The bottom plate of the slag trough is provided with a drainage hole connected to the lower filtrate recovery chamber, and the drainage hole is connected to the sewage treatment device through a pipe.

[0011] The wastewater sprayed from the cleaning device is drained and treated by cooperating with the sedimentation tank ditch below the cleaning device. It is used back and forth and has excellent on-site application effect. It has greatly reduced the workload of on-site operators, effectively controlled the floating coal on the belt sludge, and greatly improved the on-site quality standardization.

[0012] Preferably, a group of slag trough mounting hangers connected to the frame are respectively provided at both ends of the front side guard plate and the rear side guard plate, and the slag trough mounting hangers include an upper clamping plate and a lower clamping plate arranged opposite to each other, and the upper clamping plate and the lower clamping plate are connected by clamping bolts, and the upper clamping plate and the lower clamping plate are clamped on the upper and lower sides of the crossbeam of the frame respectively, and the lower surface of the lower clamping plate is integrally connected with a vertical long strip suspension rod, and a plurality of groups of bolt through holes of different heights are arranged at intervals along the length direction of the long strip suspension rod, and a horizontal connecting seat is also included, and one end of the horizontal connecting seat is connected to any bolt through hole by a connecting bolt A, and the other end of the horizontal connecting seat is vertically connected to an end fixing plate, and the end fixing plate is connected to the front side guard plate by a connecting bolt B. By changing the connecting bolt A to be installed on the bolt through holes of different heights, the installation height of the floating coal sludge recovery device can be changed.

[0013] Preferably, the first-pass coal cleaning device includes a front scraper arranged along the width direction of the lower belt, the front scraper is mounted on the front scraper fixing rod, and both ends of the front scraper fixing rod are respectively provided with a front scraper mounting frame detachably connected to the frame, the front scraper mounting frame includes a suspension rod A, the upper end of the suspension rod A is provided with a clamp A detachably connected to the frame, the bottom end of the suspension rod A passes through the front scraper fixing rod, and an end spring support plate A is provided at the bottom end of the suspension rod A, and a compression spring A is sleeved on the suspension rod A between the front scraper fixing rod and the end spring support plate A, and the compression spring A provides a tendency to drive the front scraper fixing rod to rise, so that the top side of the front scraper is tightly fitted with the surface of the lower belt.

[0014] Preferably, the second spray device comprises a spray pipe arranged along the width direction of the lower belt, one end of the spray pipe is blocked, and the other end is connected to the water supply pipe, and both ends of the spray pipe are respectively provided with a spray pipe mounting frame detachably connected to the frame, and a plurality of groups of atomizing nozzles for spraying clean water to the lower belt are arranged at intervals along the length direction of the spray pipe, and the water supply pipe is connected to the water outlet of the water supply pump, and the water inlet of the water supply pump is connected to a water source, and the water source is clean water treated by a sewage treatment device. Preferably, a slag discharge mechanism is provided in the upper slag collecting chamber, and the slag discharge mechanism includes a scraper plate driving cylinder, and the scraper plate driving cylinder is arranged along the length direction of the spray pipe and is fixedly connected to the spray pipe, and a Y-shaped connecting frame is installed at the telescopic end of the scraper plate driving cylinder, and the other end of the Y-shaped connecting frame is connected to two sets of push-pull sliding rods arranged at intervals, and the push-pull sliding rod passes through the end plate of the slag collecting trough and the movable water baffle plate and is connected to the scraper plate in the slag collecting trough, and a first sliding sleeve that slides with the push-pull sliding rod is provided on the left side of the movable water baffle plate, and a push-pull sliding rod that slides with the push-pull sliding rod is provided on the outer wall of the slag collecting trough The slide rod cooperates with the second sliding sleeve, and a compression spring C is provided on the push-pull slide rod between the movable water baffle plate and the inner wall of the slag collecting tank. The compression spring C tends to make the movable water baffle plate move from the slag discharge chamber to the upper slag collecting chamber. The stainless steel filter plate is arranged without a head, and the movable water baffle plate divides the inner cavity of the slag collecting tank into a slag discharge chamber. The bottom of the slag discharge chamber has a slag drop port, and the end of the stainless steel filter plate close to the slag discharge chamber is supported by a fixed water baffle plate. The fixed water baffle plate blocks the lower filtrate recovery chamber from being connected with the slag discharge chamber, and the lower filtrate recovery chamber is directly below the second spray device.

[0015] The sewage flushed by the second spray device first passes through the stainless steel filter plate to filter the residue. The sewage after filtering the residue first enters the lower filtrate recovery chamber and then is discharged through the drainage hole.

[0016] During the interval when the second spray device stops working, the scraper plate driving cylinder is used to drive the scraper plate to move from one end of the slag collecting trough to the other end through the Y-shaped connecting frame and the push-pull sliding rod. During the movement of the scraper plate, the coal slag and the like on the upper surface of the stainless steel filter plate are scraped clean. When the scraper plate touches the first sliding sleeve, the scraper plate moves together with the movable water baffle plate, and the movable water baffle plate compresses the compression spring C, so that the upper slag collecting chamber is connected with the slag discharge chamber, and the coal slag and the like in the upper slag collecting chamber enter the slag discharge chamber and are discharged through the slag outlet; after the slag discharge is completed, the scraper plate driving cylinder drives the scraper plate to reset, and the movable water baffle plate is reset under the drive of the compression spring C, and the compression spring C blocks the sewage in the upper slag collecting chamber from flowing out through the slag discharge chamber.

[0017] The floating coal sludge recovery device is set up below to effectively recover the floating coal sludge cleaned up by the sweeper. After the recovery device is full, the floating coal sludge is directly pulled out through the coal pulling device set up inside, and the belt driver directly handles it on site.

[0018] Preferably, the scraper plate and the movable water baffle plate are both adapted to the cross-section of the slag collecting trough and are both in the shape of an inverted trapezoid.

[0019] Preferably, the third sweeper includes a rear scraper arranged along the width direction of the lower belt, the rear scraper is installed on the rear scraper fixing rod, and the two ends of the rear scraper fixing rod are respectively provided with a rear scraper mounting frame detachably connected to the frame, the rear scraper mounting frame includes a suspension rod B, the upper end of the suspension rod B is provided with a clamp B detachably connected to the frame, the bottom end of the suspension rod B passes through the rear scraper fixing rod, and an end spring support plate B is provided at the bottom end of the suspension rod B, and a compression spring B is sleeved on the suspension rod B between the rear scraper fixing rod and the end spring support plate B, and the compression spring B provides a tendency to drive the rear scraper fixing rod to rise, so that the top side of the rear scraper is tightly fitted with the surface of the lower belt.

[0020] Preferably, the front scraper and the rear scraper are both made of polyurethane material, which has good wear resistance and elasticity, can effectively clean up the debris and accumulated materials on the conveyor belt, and will not damage the conveyor belt.

[0021] A belt cleaning process, characterized in that the lower belt passes through a first cleaner for coal cleaning, a second spray device, and a third cleaner in sequence. The first cleaner can be used to clean the lower surface of the lower belt for the first time, and then the second spray device is used to spray water and rinse the surface of the lower belt, and the floating coal on the lower surface of the lower belt is cleaned again to ensure the coal cleaning effect. Then the third cleaner can effectively and thoroughly clean the moisture on the surface of the lower belt and the remaining floating coal sludge that has not been cleaned, effectively clean the adhesion on the bottom surface of the conveyor belt, prevent the conveyor belt from deviating, extend the service life of the conveyor belt and accessories, improve the operating efficiency and reliability of the belt conveyor, reduce equipment failure rate, reduce maintenance costs, and prevent accidents.

[0022] Compared with the prior art, the present invention has the following beneficial effects: The belt cleaning device and process described in the present invention are simple to install, light in weight, and adjustable in position, and can be disassembled and moved at any time, thereby facilitating the maintenance of the belt cleaning device; the application effect is excellent, and the workload of on-site operators is greatly reduced, belt sludge and floating coal are effectively controlled, and on-site quality standardization is also greatly improved; while cleaning the working surface of the belt, the fuel coal can be effectively recycled, saving energy and reducing production costs, so it can be installed on upper and lower belts in coal mines on a large scale.

[0023] The belt cleaning device and process described in the present invention, during the interval when the second spray device stops working, the scraper plate driving cylinder is used to drive the scraper plate to move from one end of the slag collecting groove to the other end through the Y-shaped connecting frame and the push-pull sliding rod. During the movement of the scraper plate, the coal slag and the like on the upper surface of the stainless steel filter plate are scraped clean. When the scraper plate touches the first sliding sleeve, the scraper plate moves together with the movable water baffle plate, and the movable water baffle plate compresses the compression spring C, so that the upper slag collecting chamber is connected with the slag discharge chamber, and the coal slag and the like in the upper slag collecting chamber enter the slag discharge chamber and are discharged through the slag dropping port; after the slag discharge is completed, the scraper plate driving cylinder drives the scraper plate to reset, and the movable water baffle plate is reset under the drive of the compression spring C, and the compression spring C blocks the sewage in the upper slag collecting chamber from flowing out through the slag discharge chamber, and can effectively recycle the fuel coal while cleaning the working surface of the belt, saving energy and reducing production costs. Therefore, it can be installed on the upper and lower belts of coal mines on a large scale.

[0024] The belt cleaning device and process described in the present invention, the front scraper and the rear scraper are both made of polyurethane material, which has good wear resistance and elasticity, can effectively clean up debris and accumulated materials on the conveyor belt, and will not cause damage to the conveyor belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale. Figure 1 It is a structural schematic diagram of the present invention; Figure 2 The internal structure of the floating coal sludge recovery device of the present invention is shown in FIG. Figure 1 ; Figure 3 The internal structure of the floating coal sludge recovery device of the present invention is shown in FIG. Figure 2 ; Figure 4 Schematic diagram of the structure of the first cleaning device for cleaning coal; Figure 5 is a schematic diagram of the structure of the second spray device; Figure 6 It is a schematic diagram of the structure of the third sweeper; Figure 7 A schematic diagram of the structure for installing a hanger for a slag collecting tank; Figure 8 This is an application diagram of the present invention.

[0027] In the figure: 1. First-pass cleaner for cleaning coal 1.1. Front scraper 1.2. Front scraper fixing rod 1.3. Front scraper mounting frame 2. Second-pass spray device 2.1. Spray pipe 2.2. Spray pipe mounting frame 2.3. Atomizing nozzle 3. Third-pass cleaner 3.1. Rear scraper 3.2. Rear scraper fixing rod 3.3. Rear scraper mounting frame 4. Floating coal sludge recovery device 4.1. Slag collecting tank 4.2. Front side guard plate 4.3. Rear side guard plate 4.4. Slag collecting tank mounting hanger 4.5. Stainless steel filter plate 4.6. Lower filtrate recovery chamber 4.7. Drain hole 5. Coal belt conveyor 6. Clamp A 7. Hanger A 8. Compression spring A 9. End spring support plate A 10. Upper clamp plate 11. Clamping bolt 12. Lower clamp plate 13. Long strip hanger 14. Bolt through hole 15. Connecting bolt A 16, horizontal connecting seat 17, connecting bolt B 18, end fixing plate 19, scraper plate driving cylinder 20, Y-shaped connecting frame 21, push-pull slide bar 22, scraper plate 23, first sliding sleeve 24, compression spring C 25, second sliding sleeve 26, slag drop port 27, movable water baffle plate 28, fixed water baffle plate. DETAILED DESCRIPTION

[0028] The present invention is further described below in conjunction with the accompanying drawings: The present invention is further illustrated below through specific embodiments, but the present invention is not limited thereto. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0029] Embodiment 1, as Figure 1-2 As shown, the belt cleaning device is installed below the coal belt conveyor 5. The coal belt conveyor 5 has a frame, an upper belt and a lower belt, including a first cleaner coal cleaning 1, a second spray device 2 and a third cleaner 3 which are arranged in sequence. When the coal belt conveyor 5 is in operation, the lower belt passes through the first cleaner coal cleaning 1, the second spray device 2 and the third cleaner 3 in sequence. The first cleaner coal cleaning 1 can be used to first clean the lower surface of the lower belt, and then the second spray device 2 is used to spray water on the surface of the lower belt, and the floating coal on the lower surface of the lower belt is cleaned again to ensure the coal cleaning effect. Then the third cleaner 3 can effectively and thoroughly clean the moisture on the surface of the lower belt and the remaining floating coal sludge that has not been cleaned. A floating coal sludge recovery device 4 is arranged below the first cleaner coal cleaning 1, the second spray device 2 and the third cleaner 3.

[0030] It is easy to install, light in weight, and adjustable in position. It can be disassembled and moved at any time, which facilitates the maintenance of the belt cleaning device. The application effect is excellent, which greatly reduces the workload of on-site operators, effectively controls belt sludge and floating coal, and greatly improves on-site quality standardization. While cleaning the working surface of the belt, it can effectively recycle the fuel coal, save energy, and reduce production costs. Therefore, it can be installed on the upper and lower belts of coal mines on a large scale.

[0031] Embodiment 2, as Figure 1 As shown, the belt cleaning device is installed below the coal belt conveyor 5. The coal belt conveyor 5 has a frame, an upper belt and a lower belt, including a first cleaner coal cleaning 1, a second spray device 2 and a third cleaner 3 which are arranged in sequence. When the coal belt conveyor 5 is in operation, the lower belt passes through the first cleaner coal cleaning 1, the second spray device 2 and the third cleaner 3 in sequence. The first cleaner coal cleaning 1 can be used to first clean the lower surface of the lower belt, and then the second spray device 2 is used to spray water on the surface of the lower belt, and the floating coal on the lower surface of the lower belt is cleaned again to ensure the coal cleaning effect. Then the third cleaner 3 can effectively and thoroughly clean the moisture on the surface of the lower belt and the remaining floating coal sludge that has not been cleaned. A floating coal sludge recovery device 4 is arranged below the first cleaner coal cleaning 1, the second spray device 2 and the third cleaner 3.

[0032] Further, refer to Figure 4-7 The floating coal sludge recovery device 4 includes a slag collecting trough 4.1, which is an open structure that is wide at the top and narrow at the bottom. The front and rear side walls of the slag collecting trough 4.1 are respectively integrally provided with a front side guard plate 4.2 and a rear side guard plate 4.3. The front side guard plate 4.2 and the rear side guard plate 4.3 are respectively installed with a slag collecting trough mounting hanger 4.4 connected to the frame. The first sweeper coal cleaning 1, the second spray device 2, and the third sweeper 3 are all arranged between the front side guard plate 4.2 and the rear side guard plate 4.3. A stainless steel filter plate 4.5 is arranged inside the slag collecting trough 4.1. The stainless steel filter plate 4.5 separates the slag collecting trough 4.1 into an upper slag collecting chamber and a lower filtrate recovery chamber 4.6. A drainage hole 4.7 connected to the lower filtrate recovery chamber 4.6 is provided on the bottom plate of the slag collecting trough 4.1, and the drainage hole 4.7 is connected to the sewage treatment device through a pipeline.

[0033] The wastewater sprayed from the cleaning device is drained and treated by cooperating with the sedimentation tank ditch below the cleaning device. It is used back and forth and has excellent on-site application effect. It has greatly reduced the workload of on-site operators, effectively controlled the floating coal on the belt sludge, and greatly improved the on-site quality standardization.

[0034] Furthermore, a group of slag trough mounting hangers 4.4 connected to the frame are respectively provided at both ends of the front side guard plate 4.2 and the rear side guard plate 4.3, and the slag trough mounting hanger 4.4 includes an upper clamp plate 10 and a lower clamp plate 12 arranged opposite to each other, and the upper clamp plate 10 and the lower clamp plate 12 are connected by clamping bolts 11, and the upper clamp plate 10 and the lower clamp plate 12 are respectively clamped on the upper and lower sides of the crossbeam of the frame, and the lower surface of the lower clamp plate 12 is integrally connected with a vertical long strip hanger rod 13, and a plurality of groups of bolt through holes 14 with different heights are arranged at intervals along the length direction of the long strip hanger rod 13, and also include a horizontal connecting seat 16, one end of the horizontal connecting seat 16 is connected to any bolt through hole 14 by a connecting bolt A15, and the other end of the horizontal connecting seat 16 is vertically connected with an end fixing plate 18, and the end fixing plate 18 is connected to the front side guard plate 4.2 by a connecting bolt B17.

[0035] By changing the connection bolts A15 and installing them on the bolt through holes 14 at different heights, the installation height of the floating coal sludge recovery device 4 can be changed.

[0036] Furthermore, the first-pass coal cleaner 1 includes a front scraper 1.1 arranged along the width direction of the lower belt, the front scraper 1.1 is installed on the front scraper fixing rod 1.2, and the two ends of the front scraper fixing rod 1.2 are respectively provided with a front scraper mounting frame 1.3 detachably connected to the frame, the front scraper mounting frame 1.3 includes a suspension rod A7, the upper end of the suspension rod A7 is provided with a clamp A6 detachably connected to the frame, the bottom end of the suspension rod A7 passes through the front scraper fixing rod 1.2, and an end spring support plate A9 is provided at the bottom end of the suspension rod A7, and a compression spring A8 is sleeved on the suspension rod A7 between the front scraper fixing rod 1.2 and the end spring support plate A9, and the compression spring A8 provides a tendency to drive the front scraper fixing rod 1.2 to rise, so that the top side of the front scraper 1.1 is tightly fitted with the surface of the lower belt.

[0037] Furthermore, the second spray device 2 includes a spray pipe 2.1 arranged along the width direction of the lower belt, one end of the spray pipe 2.1 is blocked, and the other end is connected to a water supply pipe, and both ends of the spray pipe 2.1 are respectively provided with a spray pipe mounting frame 2.2 detachably connected to the frame, and a plurality of groups of atomizing nozzles 2.3 for spraying clean water toward the lower belt are arranged at intervals along the length direction of the spray pipe 2.1, the water supply pipe is connected to the water outlet of the water supply pump, and the water inlet of the water supply pump is connected to a water source, and the water source is clean water treated by a sewage treatment device.

[0038] Further, refer to Figure 2 , Figure 3 and Figure 8A slag discharge mechanism is provided in the upper slag collecting chamber, and the slag discharge mechanism includes a scraper plate driving cylinder 19, and the scraper plate driving cylinder 19 is arranged along the length direction of the spray pipe 2.1 and is fixedly connected to the spray pipe 2.1. A Y-shaped connecting frame 20 is installed at the telescopic end of the scraper plate driving cylinder 19, and the other end of the Y-shaped connecting frame 20 is connected with two groups of push-pull slide bars 21 arranged at intervals. The push-pull slide bar 21 passes through the end plate of the slag collecting trough 4.1 and the movable water baffle 27 and is connected to the scraper plate 22 in the slag collecting trough 4.1. A first sliding sleeve 23 that slides with the push-pull slide bar 21 is provided on the left side of the movable water baffle 27, and a first sliding sleeve 23 that slides with the push-pull slide bar 21 is provided on the outer wall of the slag collecting trough 4.1. 21 cooperates with the second sliding sleeve 25 for sliding, and a compression spring C24 is sleeved on the push-pull slide rod 21 between the movable water baffle plate 27 and the inner wall of the slag collecting tank 4.1. The compression spring C24 tends to make the movable water baffle plate 27 move from the slag discharge chamber to the upper slag collecting chamber. The stainless steel filter plate 4.5 is not set through the head. The movable water baffle plate 27 divides the inner cavity of the slag collecting tank 4.1 into a slag discharge chamber. The bottom of the slag discharge chamber has a slag drop port 26. The end of the stainless steel filter plate 4.5 close to the slag discharge chamber is supported by a fixed water baffle plate 28. The fixed water baffle plate 28 blocks the lower filtrate recovery chamber 4.6 from being connected to the slag discharge chamber. The lower filtrate recovery chamber 4.6 is located directly below the second spray device 2.

[0039] The sewage washed by the second spray device 2 first passes through the stainless steel filter plate 4.5 to filter the residue, and the sewage after filtering the residue first enters the lower filtrate recovery chamber 4.6 and then is discharged through the drainage hole 4.7.

[0040] During the interval when the second spray device 2 stops working, the scraper plate driving cylinder 19 is used to drive the scraper plate 22 to move from one end of the slag collecting tank to the other end through the Y-shaped connecting frame 20 and the push-pull slide rod 21. During the movement of the scraper plate 22, the coal slag and the like on the upper surface of the stainless steel filter plate 4.5 are scraped clean. When the scraper plate 22 touches the first sliding sleeve 23, the scraper plate 22 moves together with the movable water baffle plate 27, and the movable water baffle plate 27 compresses the compression spring C24, so that the upper slag collecting chamber is connected with the slag discharge chamber, and the coal slag and the like in the upper slag collecting chamber enter the slag discharge chamber and are discharged through the slag outlet 26; after the slag discharge is completed, the scraper plate driving cylinder 19 drives the scraper plate 22 to reset, and the movable water baffle plate 27 is reset under the drive of the compression spring C24, and the compression spring C24 blocks the sewage in the upper slag collecting chamber from flowing out through the slag discharge chamber.

[0041] The floating coal sludge recovery device is set up below to effectively recover the floating coal sludge cleaned up by the sweeper. After the recovery device is full, the floating coal sludge is directly pulled out through the coal pulling device set up inside, and the belt driver directly handles it on site.

[0042] Furthermore, the scraper plate 22 and the movable water baffle plate 27 are both adapted to the cross section of the slag collecting trough 4.1 and are in an inverted trapezoidal shape.

[0043] Furthermore, the third sweeper 3 includes a rear scraper 3.1 arranged along the width direction of the lower belt, the rear scraper 3.1 is installed on the rear scraper fixing rod 3.2, and the two ends of the rear scraper fixing rod 3.2 are respectively provided with a rear scraper mounting frame 3.3 detachably connected to the frame, and the rear scraper mounting frame 3.3 includes a suspension rod B, and the upper end of the suspension rod B is provided with a clamp B detachably connected to the frame, the bottom end of the suspension rod B passes through the rear scraper fixing rod 3.2, and an end spring support plate B is provided at the bottom end of the suspension rod B, and a compression spring B is sleeved on the suspension rod B between the rear scraper fixing rod 3.2 and the end spring support plate B, and the compression spring B provides a tendency to drive the rear scraper fixing rod 3.2 to rise, so that the top side of the rear scraper 3.1 is tightly fitted with the surface of the lower belt.

[0044] Furthermore, the front scraper 1.1 and the rear scraper 3.1 are both made of polyurethane material, which has good wear resistance and elasticity, can effectively clean up the debris and accumulated materials on the conveyor belt, and will not cause damage to the conveyor belt.

[0045] Embodiment 3, the belt cleaning device and process, the lower belt passes through the first cleaner 1, the second spray device 2, and the third cleaner 3 in sequence, and the first cleaner 1 can first clean the lower surface of the lower belt for the first time, and then the second spray device 2 is used to spray water and rinse the surface of the lower belt, and then the floating coal on the lower surface of the lower belt is cleaned again to ensure the coal cleaning effect, and then the third cleaner 3 can effectively and thoroughly clean the moisture on the surface of the lower belt and the remaining floating coal sludge that has not been cleaned, effectively clean the adhesion on the bottom surface of the conveyor belt, prevent the conveyor belt from deviation, extend the service life of the conveyor belt and accessories, improve the operating efficiency and reliability of the belt conveyor, reduce equipment failure rate, reduce maintenance costs, and prevent accidents.

[0046] The belt cleaning device and process described in the present invention are simple to install, light in weight, and adjustable in position, and can be disassembled and moved at any time, thereby facilitating the maintenance of the belt cleaning device; the application effect is excellent, and the workload of on-site operators is greatly reduced, belt sludge and floating coal are effectively controlled, and on-site quality standardization is also greatly improved; while cleaning the working surface of the belt, the fuel coal can be effectively recycled, saving energy and reducing production costs, so it can be installed on upper and lower belts in coal mines on a large scale.

[0047] The belt cleaning device and process described in the present invention, during the interval when the second spray device stops working, the scraper plate driving cylinder is used to drive the scraper plate to move from one end of the slag collecting groove to the other end through the Y-shaped connecting frame and the push-pull sliding rod. During the movement of the scraper plate, the coal slag and the like on the upper surface of the stainless steel filter plate are scraped clean. When the scraper plate touches the first sliding sleeve, the scraper plate moves together with the movable water baffle plate, and the movable water baffle plate compresses the compression spring C, so that the upper slag collecting chamber is connected with the slag discharge chamber, and the coal slag and the like in the upper slag collecting chamber enter the slag discharge chamber and are discharged through the slag dropping port; after the slag discharge is completed, the scraper plate driving cylinder drives the scraper plate to reset, and the movable water baffle plate is reset under the drive of the compression spring C, and the compression spring C blocks the sewage in the upper slag collecting chamber from flowing out through the slag discharge chamber, and can effectively recycle the fuel coal while cleaning the working surface of the belt, saving energy and reducing production costs. Therefore, it can be installed on the upper and lower belts of coal mines on a large scale.

[0048] The belt cleaning device and process described in the present invention, the front scraper and the rear scraper are both made of polyurethane material, which has good wear resistance and elasticity, can effectively clean up debris and accumulated materials on the conveyor belt, and will not cause damage to the conveyor belt.

[0049] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

[0050] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. A belt cleaning device, installed below a coal belt conveyor, wherein the coal belt conveyor has a frame, an upper belt and a lower belt, and is characterized in that: It includes a first sweeper for coal cleaning, a second spray device and a third sweeper which are arranged at intervals in sequence. When the coal belt conveyor is in operation, the lower belt passes through the first sweeper for coal cleaning, the second spray device and the third sweeper in sequence. The first sweeper for coal cleaning can first clean the lower surface of the lower belt for the first time, and then the second spray device is used to spray water and rinse the surface of the lower belt, and then the floating coal on the lower surface of the lower belt is cleaned again to ensure the coal cleaning effect. Then the third sweeper can effectively and thoroughly clean the moisture on the surface of the lower belt and the remaining floating coal sludge that has not been cleaned up. A floating coal sludge recovery device is arranged below the first sweeper for coal cleaning, the second spray device and the third sweeper.

2. The belt cleaning device according to claim 1, characterized in that: The floating coal sludge recovery device includes a slag collecting trough, which is an open structure that is wide at the top and narrow at the bottom. The front and rear side walls of the slag collecting trough are respectively integrally provided with a front side guard plate and a rear side guard plate, and the front side guard plate and the rear side guard plate are respectively installed with slag collecting trough mounting hangers connected to the frame. The first-pass coal cleaning device, the second-pass spray device, and the third-pass sweeper are all arranged between the front side guard plate and the rear side guard plate. A stainless steel filter plate is arranged inside the slag collecting trough, and the stainless steel filter plate separates the slag collecting trough into an upper slag collecting chamber and a lower filtrate recovery chamber. A drainage hole connected to the lower filtrate recovery chamber is provided on the bottom plate of the slag collecting trough, and the drainage hole is connected to the sewage treatment device through a pipeline.

3. The belt cleaning device according to claim 2, characterized in that: The two ends of the front side guard plate and the rear side guard plate are respectively provided with a group of slag trough mounting hangers connected to the frame, and the slag trough mounting hangers include an upper clamping plate and a lower clamping plate arranged opposite to each other, and the upper clamping plate and the lower clamping plate are connected by clamping bolts, and the upper clamping plate and the lower clamping plate are respectively clamped on the upper and lower sides of the cross beam of the frame, and the lower surface of the lower clamping plate is integrally connected with a vertical long strip hanger, and a plurality of groups of bolt through holes with different heights are arranged at intervals along the length direction of the long strip hanger, and also include a horizontal connecting seat, one end of the horizontal connecting seat is connected to any bolt through hole by a connecting bolt A, and the other end of the horizontal connecting seat is vertically connected with an end fixing plate, and the end fixing plate is connected to the front side guard plate by a connecting bolt B.

4. The belt cleaning device according to claim 3, characterized in that: The first-pass coal cleaning device includes a front scraper arranged along the width direction of the lower belt, the front scraper is installed on the front scraper fixing rod, and the two ends of the front scraper fixing rod are respectively provided with a front scraper mounting frame detachably connected to the frame, the front scraper mounting frame includes a suspension rod A, the upper end of the suspension rod A is provided with a clamp A detachably connected to the frame, the bottom end of the suspension rod A passes through the front scraper fixing rod, and an end spring support plate A is provided at the bottom end of the suspension rod A, and a compression spring A is sleeved on the suspension rod A between the front scraper fixing rod and the end spring support plate A, and the compression spring A provides a tendency to drive the front scraper fixing rod to rise, so that the top side of the front scraper is tightly fitted with the surface of the lower belt.

5. The belt cleaning device according to claim 4, characterized in that: The second spray device includes a spray pipe arranged along the width direction of the lower belt, one end of the spray pipe is blocked, and the other end is connected to the water supply pipe. Both ends of the spray pipe are respectively provided with a spray pipe mounting frame detachably connected to the frame, and multiple groups of atomizing nozzles for spraying clean water toward the lower belt are arranged at intervals along the length direction of the spray pipe. The water supply pipe is connected to the water outlet of the water supply pump, and the water inlet of the water supply pump is connected to a water source, and the water source is clean water treated by a sewage treatment device.

6. The belt cleaning device according to claim 5, characterized in that: The cross section of the slag collecting trough is an inverted trapezoid.

7. The belt cleaning device according to claim 6, characterized in that: The third sweeper includes a rear scraper arranged along the width direction of the lower belt, the rear scraper is installed on the rear scraper fixing rod, and the two ends of the rear scraper fixing rod are respectively provided with a rear scraper mounting frame detachably connected to the frame, the rear scraper mounting frame includes a suspension rod B, the upper end of the suspension rod B is provided with a clamp B detachably connected to the frame, the bottom end of the suspension rod B passes through the rear scraper fixing rod, and an end spring support plate B is provided at the bottom end of the suspension rod B, and a compression spring B is sleeved on the suspension rod B between the rear scraper fixing rod and the end spring support plate B, and the compression spring B provides a tendency to drive the rear scraper fixing rod to rise, so that the top side of the rear scraper is tightly fitted with the surface of the lower belt.

8. The belt cleaning device according to claim 7, characterized in that: The front scraper and the rear scraper are both made of polyurethane material, which has good wear resistance and elasticity, can effectively clean up the debris and accumulated materials on the conveyor belt, and will not cause damage to the conveyor belt.

9. A cleaning process using a belt cleaning device, characterized in that: The lower belt passes through the first cleaner, the second spray device and the third cleaner in sequence. The first cleaner can clean the lower surface of the lower belt for the first time, and then the second spray device is used to spray water and rinse the surface of the lower belt, and the floating coal on the lower surface of the lower belt is cleaned again to ensure the coal cleaning effect. Then the third cleaner can effectively clean the moisture on the surface of the lower belt and the remaining floating coal sludge that has not been cleaned up, and effectively clean the adhesion on the bottom surface of the conveyor belt to prevent the conveyor belt from deviating, extend the service life of the conveyor belt and accessories, improve the operating efficiency and reliability of the belt conveyor, reduce equipment failure rate, reduce maintenance costs, and prevent accidents.

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