A belt water circulation flushing and cleaning device

Abstract

A belt water circulation flushing and cleaning device, the interior of the belt cleaning device is a hollow structure, a fan-shaped nozzle is arranged inside the belt cleaning device, and the bottom end of the fan-shaped nozzle extends to the bottom of a water tank; the flexible cover plate of the belt cleaning device can fully contact the belt under the belt conveyor; the vibrating brush is located on the left side of the belt cleaning device, and the hydrophobic brush of the vibrating brush can fully contact the belt under the belt conveyor; the buoyancy signal transmitter is in the shape of a sphere with a through center, the buoyancy signal transmitter is nested on a fixed rod, the center diameter of which is slightly larger than the diameter of the fixed rod, the movement range of the buoyancy signal transmitter is only up and down movement, and the midline height is consistent with the horizontal plane; the present invention can reduce the impact damage of the scraper on the belt, reduce the waste of water resources, and avoid the slipping of the belt due to water freezing, and has the advantages of safety, high efficiency, simple operation and low equipment wear.

Description

Technical Field

[0001] The invention relates to a belt cleaning device, in particular to a belt water circulation flushing and cleaning device, belonging to the technical field of industrial belt dust removal. Background Art

[0002] The demand for sand and gravel increases year by year, especially in the construction industry. The supply of natural sand and gravel is insufficient, so machine-made sand is needed to alleviate the market demand. The sand-making industry has developed to a certain extent, and the industrial chain has gradually become complete. In the production process of machine-made sand, it is generally necessary to go through storage, transportation, grading and screening, uniform mixing, crushing and grinding, separation, cleaning, drying and other processes. In the transportation process of machine-made sand, fixed belt conveyors are widely used in the transportation process of machine-made sand because of their advantages such as large conveying capacity, low power consumption, long conveying distance and easy layout. Since the raw materials are transported after being crushed, a large amount of dust will be generated at the head of the belt conveyor, causing pollution to the working environment, wearing out the precision equipment in the transportation workshop, and even affecting the health of employees.

[0003] There are two most commonly used methods of dust removal for belt conveyors. One is to use spray water on the belt to reduce dust generation, and the other is to install belt cleaners at the head and tail of the belt conveyor to scrape off the accumulated materials and debris on the back of the belt, thereby reducing dust generation. Although these two dust removal methods can remove most dust when used together, there are still many problems after long-term use. In the cold winter season, spraying water can easily cause the belt to freeze, resulting in belt slippage, which is risky. At the same time, spraying water will cause a large amount of water resources to be wasted; after long-term use, the scraper of the belt cleaner will constantly hit the belt surface, which can easily cause belt wear or even rupture. Summary of the invention

[0004] The purpose of the present invention is to provide a belt water circulation flushing and cleaning device, which can reduce the impact damage of the scraper on the belt, reduce the waste of water resources, and avoid the belt slipping caused by water freezing. It has the advantages of safety, high efficiency, easy operation and low equipment wear.

[0005] In order to achieve the above-mentioned object, the present invention provides a belt water circulation flushing and cleaning device, comprising a water circulation cleaning device arranged below the head of a belt conveyor and a vibrating brush fixed below the belt conveyor, the water circulation cleaning device comprising a belt cleaning device, a fan-shaped nozzle, a wide-angle nozzle assembly, an automatic water adding device, a high-precision metal filter, an automatic sewage discharge device, a water storage tank, and a sewage discharge tank;

[0006] The belt cleaning device has a hollow structure inside, and a fan-shaped nozzle is installed inside the belt cleaning device, and the bottom end of the fan-shaped nozzle extends to the bottom of the water tank; the belt cleaning device is composed of a scraper, a flexible cover plate arranged on the scraper, and an easily detachable buckle, the easily detachable buckle is located on both sides of the scraper, and the flexible cover plate can be fixed on the upper end of the scraper, and the flexible cover plate can fully contact the belt under the belt conveyor, and the easily detachable buckle is easy to disassemble, which is convenient for replacing materials.

[0007] The vibrating brush is located on the left side of the belt cleaning device. The vibrating brush includes a vibrating motor, a hydrophobic brush, and a fixing bracket. The vibrating motor is installed at the bottom of the hydrophobic brush and is fixed to the bottom of the belt conveyor by the fixing bracket. The hydrophobic brush can fully contact the belt under the belt conveyor, so as to facilitate cleaning of moisture on the belt.

[0008] The automatic water adding device comprises a buoyancy signal transmitter, a fixed rod, a retractable signal receiver, and a water inlet pipe. The shape of the buoyancy signal transmitter is a sphere with a through center. The buoyancy signal transmitter is nested on the fixed rod, and its center diameter is slightly larger than the diameter of the fixed rod. The movement range of the buoyancy signal transmitter is only up and down movement, and its midline height is consistent with the horizontal plane; the bottom end of the fixed rod is fixed to the bottom of the water tank, and the top end of the fixed rod extends to the bottom of the high-precision metal filter and contacts with the high-precision metal filter; the retractable signal receiver is installed outside the water tank, and the height of the retractable signal receiver is consistent with the preset water level height. The water inlet pipe is arranged at the bottom of the water tank and communicates with the inside of the water tank;

[0009] The automatic sewage discharge device is installed at the bottom of the sewage discharge tank and is connected to the inside of the sewage discharge tank;

[0010] The high-precision metal filter includes an oblique filter and an axial filter. The water tank and the sewage tank are separated by the axial filter. The oblique filter is arranged at the top of the water tank, the wide-angle nozzle assembly is arranged directly below the oblique filter and the bottom end pipeline is arranged in the water tank.

[0011] In order to ensure that the fine water flow sprayed by the fan-shaped nozzle can effectively spray off the dust on the head of the belt conveyor, the aperture of the fan-shaped nozzle is set to 1-3 mm, which can effectively spray the fine water flow to the lower surface of the bottom belt of the belt conveyor for flushing. The spray coverage range of the fan-shaped nozzle is 120-150°.

[0012] In order to ensure that the fine water flow sprayed by the fan-shaped nozzle can cover the dust generating point at the head of the belt conveyor and achieve the best dust reduction effect, the relationship between the spray angle and the effective spray range of the fan-shaped nozzle selected in the present invention is shown in the following formula:

[0013]

[0014] Where: a is the straight-line distance between the fan-shaped nozzle and the belt, in meters;

[0015] α is the horizontal inclination angle of the belt, in degrees;

[0016] β is the horizontal installation angle of the fan-shaped nozzle, in degrees;

[0017] γ is the coverage angle of the thin water stream sprayed by the fan-shaped nozzle, in degrees;

[0018] s is the length of the belt covered by the thin water stream sprayed by the fan-shaped nozzle, in meters;

[0019] It is the optimization coefficient (taking into account the changes caused by the falling of the thin water flow under the influence of gravity, it is generally taken as 0.85~0.95).

[0020] The hydrophobic brush of the present invention is made by spraying hydrophobic coatings such as silicone and organic fluorine and wear-resistant ceramic coatings on the brush, and has good hydrophobic performance and wear resistance. In order to achieve the best water removal effect and avoid the belt from freezing and causing the belt to slip at low temperatures in winter, the width of the hydrophobic brush of the present invention is set to 10-15 cm, and its length is consistent with the belt width of the belt conveyor. The vibration direction of the vibration motor is horizontal vibration, and the vibration movement limit distance is 2-3 cm.

[0021] In order to save water adding process and reduce operation steps, the water adding process of the automatic water adding device of the present invention is carried out according to the following steps:

[0022] ① The buoyancy signal transmitter can continuously transmit signals horizontally to the left side of the water tank. When the water level in the water tank drops due to the water absorption of the fan-shaped nozzle, wide-angle nozzle assembly, and automatic sewage discharge device, the buoyancy signal transmitter will drop accordingly;

[0023] ② The retractable signal receiver can adjust the installation height h0 of the bottom of the retractable signal receiver from the bottom of the water tank by retracting. The retractable signal receiver can only receive signals from the buoyancy signal transmitter in the horizontal direction. When the horizontal height h of the buoyancy signal transmitter is less than h0, the retractable signal receiver cannot receive signals;

[0024] ③ The retractable signal receiver makes the following judgment based on whether it can receive the signal from the buoyancy signal transmitter:

[0025] h≥h0, receiving the signal, the water inlet pipe is closed, and the water inlet stops;

[0026] h<h0, no signal is received, the water inlet pipe is opened, and water starts to flow in until the retractable signal receiver receives the signal transmitted by the buoyancy signal transmitter.

[0027] The flexible covering plate of the present invention is made of a flexible waterproof material composed of various fiber fabrics such as linoleum and glass cloth, and has good waterproofness and wear resistance.

[0028] In order to improve the recycling rate of sewage and prevent dust from entering the water storage tank, the mesh number of the oblique filter of the present invention is 30000-40000, the inclination angle is 30-45°, the mesh number of the axial filter is 20000-30000, and the manufacturing materials of the oblique filter and the axial filter are both wear-resistant stainless steel metal materials.

[0029] In order to ensure that the dust that clogs the filter screen after the sewage is filtered through the inclined filter screen can be effectively removed, and to avoid the water being unable to return to the water storage tank due to the clogging of the filter screen by dust, the present invention also provides a wide-angle nozzle assembly, which includes four groups of wide-angle nozzles. The spraying frequency of the wide-angle nozzle is 30 seconds every 2 minutes. The nozzle aperture of the wide-angle nozzle is 0.5-1mm, and it can continuously spray out narrow-angle droplets with high impact force. The four groups of wide-angle nozzles of the wide-angle nozzle assembly are connected to the same water inlet pipe and connected to the water storage tank.

[0030] In order to automatically remove the dust and mud at the bottom of the sewage tank, avoid blockage caused by excessive dust and mud, and reduce the process of manual handling of dust and mud, the automatic sewage discharge device can suck out the dust-containing sewage settled at the bottom of the sewage tank. The sewage discharge frequency is 1 time / h. When the amount of dust settled at the bottom is too large, the sewage discharge can also be manually opened.

[0031] Compared with the prior art, the present invention has the following advantages:

[0032] (1) The present invention aims to solve the problem that the scraper of the traditional belt cleaner is too hard and is easy to scratch the belt after long-term use. The scraper structure is wrapped with a flexible cover plate, so that the flexible cover plate is in direct contact with the belt, reducing the wear of the belt caused by impact, friction, etc., and converting the wear of the belt into wear of the flexible cover plate on the basis of ensuring its dust removal effect, thereby reducing the use cost of the equipment. The easily detachable buckle used to fix the flexible cover plate has the advantage of easy disassembly, so that the flexible cover plate is easy to replace after wear, and is more convenient to use; the fine water flow sprayed by the fan-shaped nozzle can also reduce the friction on the belt and reduce equipment wear;

[0033] (2) The present invention uses a fan-shaped nozzle to continuously spray the head of the belt conveyor. After adjusting the installation angle, the fine water flow sprayed by the device can cover the belt head, avoiding the dust phenomenon caused by the traditional belt cleaner scraping dust. The water pipeline and nozzle of the device are arranged inside the belt cleaner of the present invention, which has the advantages of simple arrangement and not easy to be damaged compared with the additional installation of the nozzle;

[0034] (3) The vibrating brush of the present invention can continuously perform a horizontal water sweeping operation after the equipment is turned on, and the water remaining on the belt can be brushed off into the water storage tank, which can not only save water resources and reduce the cost of equipment use, but also prevent moisture from remaining on the belt in the low temperature environment in winter, causing the belt to freeze and thus cause the belt to slip and create safety hazards. At the same time, the device is directly fixed under the belt conveyor by a fixed bracket, and occupies less space in actual use;

[0035] (4) The oblique filter screen portion of the high-precision metal filter screen of the present invention can effectively filter out the sewage falling from the fan-shaped nozzle, thereby improving the recycling rate of water. At the same time, its inclination angle can ensure that a part of the dust can directly fall into the sewage tank, and at the same time, the droplets sprayed by the wide-angle nozzle assembly can discharge the dust blocked on the filter screen to the sewage tank again; the axial filter screen can ensure that the dust can only settle at the bottom of the sewage tank and cannot enter the water storage tank, and at the same time, the water in the sewage tank can still be used;

[0036] (5) The automatic water adding device of the present invention monitors the water level through the buoyancy signal transmitter, and continuously transmits the water level signal in the water storage tank to the retractable signal receiver outside the water storage tank, so as to realize real-time control of water adding with higher accuracy and reduce the operation of manual control of water adding; the automatic sewage discharge device can automatically suck out the dust and mud settled at the bottom at a set frequency, thus reducing the manual mud removal steps and having the advantage of easy operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0038] Figure 2 It is a schematic diagram of the belt cleaning device of the present invention;

[0039] Figure 3 An exploded view of the belt cleaning device of the present invention;

[0040] Figure 4 It is a spray angle diagram of the fan-shaped nozzle of the present invention;

[0041] Figure 5 The structure diagram of the vibrating brush of the present invention;

[0042] Figure 6 This is a water inlet principle diagram of the automatic water inlet device of the present invention.

[0043] In the figure: 1. belt cleaning device, 11. scraper, 12. flexible cover plate, 13. easily removable buckle, 2. fan-shaped nozzle, 3. vibrating brush, 31. vibrating motor, 32. hydrophobic brush, 33. fixed bracket, 4. wide-angle nozzle assembly, 5. automatic water adding device, 51. buoyancy signal transmitter, 52. fixing rod, 53. retractable signal receiver, 54. water inlet pipe, 6. high-precision metal filter, 61. oblique filter, 62. axial filter, 7. automatic sewage discharge device, 8. water storage tank, 9. sewage discharge tank, 10. belt conveyor. DETAILED DESCRIPTION

[0044] The present invention will be further described below in conjunction with the accompanying drawings.

[0045] like Figure 1 As shown, a belt water circulation flushing and cleaning device comprises a water circulation cleaning device arranged below the head of a belt conveyor 10 and a vibrating brush 3 fixed below the belt conveyor 10, the water circulation cleaning device comprises a belt cleaning device 1, a fan-shaped nozzle 2, a wide-angle nozzle assembly 4, an automatic water adding device 5, a high-precision metal filter 6, an automatic sewage discharge device 7, a water storage tank 8, and a sewage discharge tank 9;

[0046] The belt cleaning device 1 has a hollow structure inside, and a fan-shaped nozzle 2 is installed inside the belt cleaning device 1, and the bottom end of the fan-shaped nozzle 2 extends to the bottom of the water tank 8; the belt cleaning device 1 is composed of a scraper 11, a flexible cover plate 12 arranged on the scraper 11, and an easily detachable buckle 13, and the easily detachable buckle 13 is located on both sides of the scraper 11, and the flexible cover plate 12 can be fixed on the upper end of the scraper 11, and the flexible cover plate 12 can fully contact with the belt under the belt conveyor 10;

[0047] The vibrating brush 3 is located on the left side of the belt cleaning device 1. The vibrating brush 3 includes a vibrating motor 31, a hydrophobic brush 32, and a fixing bracket 33. The vibrating motor 31 is installed at the bottom of the hydrophobic brush 32 and is fixed to the bottom of the belt conveyor 10 by the fixing bracket 33. The hydrophobic brush 32 can fully contact the belt under the belt conveyor 10, so as to clean the moisture on the belt.

[0048] The automatic water adding device 5 includes a buoyancy signal transmitter 51, a fixed rod 52, a retractable signal receiver 53, and a water inlet pipe 54. The buoyancy signal transmitter 51 is in the shape of a sphere with a through center. The buoyancy signal transmitter 51 is nested on the fixed rod 52, and its center diameter is slightly larger than the diameter of the fixed rod 52. The movement range of the buoyancy signal transmitter 51 is only up and down movement, and its midline height is consistent with the horizontal plane; the bottom end of the fixed rod 52 is fixed to the bottom of the water tank 8, and the top end of the fixed rod 52 extends to the bottom of the high-precision metal filter 6 and contacts the high-precision metal filter 6; the retractable signal receiver 53 is installed on the outside of the water tank 8, and the height of the retractable signal receiver 53 is consistent with the preset water level height. The water inlet pipe 54 is arranged at the bottom of the water tank 8 and communicates with the inside of the water tank 8;

[0049] The automatic sewage discharge device 7 is installed at the bottom of the sewage discharge tank 9 and communicates with the interior of the sewage discharge tank 9;

[0050] The high-precision metal filter 6 includes an oblique filter 61 and an axial filter 62. The water tank 8 and the sewage tank 9 are separated by the axial filter 62. The oblique filter 61 is arranged at the top of the water tank 8, and the wide-angle nozzle assembly 4 is arranged directly below the oblique filter 61 and the bottom end pipeline is arranged in the water tank 8.

[0051] like Figure 2 and Figure 3 As shown, in order to ensure that the fine water flow sprayed from the fan-shaped nozzle can effectively spray off the dust on the head of the belt conveyor, the aperture of the fan-shaped nozzle 2 is 1 to 3 mm, which can effectively spray the fine water flow to the lower surface of the bottom belt of the belt conveyor 10 for flushing, and the spraying coverage range of the fan-shaped nozzle 2 is 120 to 150°.

[0052] like Figure 4 As shown, the relationship between the spray angle and the effective spray range of the fan-shaped nozzle 2 is shown in the following formula:

[0053]

[0054] Where: a is the straight-line distance between the fan-shaped nozzle and the belt, in meters;

[0055] α is the horizontal inclination angle of the belt, in degrees;

[0056] β is the horizontal installation angle of the fan-shaped nozzle, in degrees;

[0057] γ is the coverage angle of the thin water stream sprayed by the fan-shaped nozzle, in degrees;

[0058] s is the length of the belt covered by the thin water stream sprayed by the fan-shaped nozzle, in meters;

[0059] It is the optimization coefficient (taking into account the changes caused by the falling of the thin water flow under the influence of gravity, it is generally taken as 0.85~0.95).

[0060] The hydrophobic brush 32 is made by spraying hydrophobic coatings such as organic silicon and organic fluorine and wear-resistant ceramic coatings on the brush, and has good hydrophobic properties and wear resistance. Figure 5 As shown, in order to achieve the best water removal effect and avoid the belt from freezing and slipping at low temperatures in winter, the width of the hydrophobic brush 32 is 10 to 15 cm, and its length is consistent with the belt width of the belt conveyor 10. The vibration direction of the vibration motor 31 is horizontal vibration, and the vibration movement limit distance is 2 to 3 cm.

[0061] like Figure 5 and Figure 6 As shown, in order to save the water adding process and reduce the operation steps, the water adding process of the automatic water adding device 5 is carried out according to the following steps:

[0062] ① The buoyancy signal transmitter 51 can continuously transmit signals horizontally to the left side of the water tank 8. When the water level in the water tank 8 drops due to the water absorption of the fan-shaped nozzle 2, the wide-angle nozzle assembly 4, and the automatic sewage discharge device 7, the buoyancy signal transmitter 51 will drop accordingly;

[0063] ② The retractable signal receiver 53 can adjust the installation height h0 of the bottom end of the retractable signal receiver 53 from the bottom end of the water tank 8 by retracting. The retractable signal receiver 53 can only receive the signal from the buoyancy signal transmitter 51 in the horizontal direction. When the horizontal height h of the buoyancy signal transmitter 51 is less than h0, the retractable signal receiver 53 cannot receive the signal;

[0064] ③ The retractable signal receiver 53 makes the following judgment based on whether it can receive the signal transmitted by the buoyancy signal transmitter 51:

[0065] h≥h0, receiving the signal, the water inlet pipe 54 is closed, and the water inlet stops;

[0066] h<h0, no signal is received, the water inlet pipe 54 is opened, and water starts to flow in until the retractable signal receiver 53 receives the signal transmitted by the buoyancy signal transmitter 51 .

[0067] The flexible cover plate 12 is made of a flexible waterproof material composed of various fiber fabrics such as linoleum and glass cloth, and has good waterproof and wear resistance.

[0068] The mesh number of the oblique filter screen 61 is 30000-40000, and the inclination angle is 30-45 degrees. The mesh number of the axial filter screen 62 is 20000-30000. The oblique filter screen 61 and the axial filter screen 62 are both made of wear-resistant stainless steel metal materials.

[0069] The wide-angle nozzle assembly 4 includes four groups of wide-angle nozzles. The spraying frequency of the wide-angle nozzles is 30 seconds every 2 minutes. The nozzle aperture of the wide-angle nozzles is 0.5-1 mm, and it can continuously spray out narrow-angle droplets with high impact force. The four groups of wide-angle nozzles of the wide-angle nozzle assembly 4 are connected to the same water inlet pipe and connected to the water storage tank 8.

[0070] In order to automatically remove the dust and mud at the bottom of the sewage tank, avoid blockage caused by excessive dust and mud, and reduce the process of manual handling of dust and mud, the automatic sewage discharge device 7 can suck out the dust-containing sewage settled at the bottom of the sewage tank 9, and its sewage discharge frequency is 1 time / h. When the amount of dust settled at the bottom is too large, the sewage discharge can also be manually opened.

[0071] Example 1

[0072] In order to ensure that the fine water flow sprayed by the fan-shaped nozzle can cover the dust generating point at the head of the belt conveyor and achieve the best dust reduction effect, the relationship between the spray angle and the effective spray range of the fan-shaped nozzle 2 is as follows:

[0073]

[0074] Where: a is the straight-line distance between the fan-shaped nozzle and the belt, in meters;

[0075] α is the horizontal inclination angle of the belt, in degrees;

[0076] β is the horizontal installation angle of the fan-shaped nozzle, in degrees;

[0077] γ is the coverage angle of the thin water stream sprayed by the fan-shaped nozzle, in degrees;

[0078] s is the length of the belt covered by the thin water stream sprayed by the fan-shaped nozzle, in meters;

[0079] It is the optimization coefficient (taking into account the changes caused by the falling of the thin water flow under the influence of gravity, it is generally taken as 0.85~0.95).

[0080] The linear distance between the fan-shaped nozzle 2 provided in Example 1 and the belt is 30 cm, the horizontal inclination angle of the belt is 30°, the horizontal angle installation angle of the fan-shaped nozzle 2 is 75°, and the coverage angle of the water stream sprayed by the fan-shaped nozzle 2 is 120°. According to field experiments and experience, the optimization coefficient selected in Example 1 is 0.9, and it can be obtained:

[0081] s=0.3×[tan(30°+75°+60°-90°)+tan(90°-30°-75°+60°)]×0.9=1.2776m

[0082] That is, the effective range of the fan-shaped nozzle 2 in Example 1 to the belt is 1.2776m.

[0083] Example 2

[0084] A belt water circulation flushing and cleaning device, the specific implementation steps of which are as follows:

[0085] ① When the belt conveyor 10 is turned on, the residual materials continuously release dust from the head, and the fan-shaped nozzle 2 installed inside the belt cleaning device 1 starts to spray a thin stream of water to the head belt to wash and flush most of the dust; the scraper 11 of the belt cleaning device 1 and the flexible cover plate 12 installed above it scrape off the dust and mud adhered to the belt, and then fall down;

[0086] ② The dust and mud scraped off by the belt cleaning device 1 and the sewage sprayed by the fan-shaped nozzle 2 fall on the oblique filter 61, and the water in them is filtered into the water storage tank 8 below. Part of the dust flows to the sewage tank 9 with the water, and the other part is blocked above it due to the action of the oblique filter 61;

[0087] ③ The vibrating brush 3 installed on the upper left of the belt cleaning device 1 can continuously brush away the moisture remaining on the belt, and discharge the brushed moisture to the oblique filter 61 below, thereby avoiding the belt from freezing in the low temperature in winter, thereby preventing the belt from slipping and rolling over;

[0088] ④ The wide-angle nozzle assembly 4 installed in the water storage tank 8 and directed toward the oblique filter screen 61 continuously sprays narrow-angle droplets with high impact force toward the oblique filter screen 61 at a spraying frequency of 30 seconds every 2 minutes, spraying the dust stuck on the filter screen off and flowing to the right sewage tank 9 with the water flow; the water in the sewage tank 9 moves to the left water storage tank 8 under the water absorption of the fan-shaped nozzle 2 and the wide-angle nozzle assembly 4, and the dust in the sewage tank is blocked by the axial filter screen and cannot enter the water storage tank, thereby avoiding dust clogging the nozzle;

[0089] ⑤ After the sewage sprayed down by the fan-shaped nozzle 2 above and the sewage sprayed by the wide-angle nozzle assembly 4 and flowing into the sewage tank 9 fall into the tank, the dust therein continuously settles to the bottom of the sewage tank 9 due to its high density. The automatic sewage discharge device 7 can suck out the dust-containing sewage at the bottom at a frequency of 1 time / h, thereby realizing automatic sewage discharge. When the amount of dust falling into the tank in a short period of time is too large and accumulates at the bottom, the sewage discharge can also be manually opened to prevent clogging of the pipeline;

[0090] ⑥ When the fan-shaped nozzle 2, the wide-angle nozzle assembly 4, and the automatic sewage discharge device 7 are turned on, the water level in the water storage tank 8 continues to drop, and the buoyancy signal transmitter 51 drops with the water level. When its horizontal height is lower than the retractable signal receiver 53, the retractable signal receiver 53 will not be able to receive the water level signal, and the water inlet pipe 54 will be opened to let water in; when the water level returns to the set height, the retractable signal receiver 53 receives the signal again and controls the water inlet pipe 54 to close.

Claims

1. A belt water circulation flushing and cleaning device, comprising a water circulation cleaning device arranged below the head of a belt conveyor (10) and a vibrating brush (3) fixed below the belt conveyor (10), characterized in that: The water circulation cleaning device comprises a belt cleaning device (1), a fan-shaped nozzle (2), a wide-angle nozzle assembly (4), an automatic water adding device (5), a high-precision metal filter (6), an automatic sewage discharge device (7), a water storage tank (8), and a sewage discharge tank (9); The belt cleaning device (1) has a hollow structure inside, a fan-shaped nozzle (2) is arranged inside the belt cleaning device (1), and the bottom end of the fan-shaped nozzle (2) extends to the bottom of the water tank (8); the belt cleaning device (1) is composed of a scraper (11), a flexible cover plate (12) arranged on the scraper (11), and an easily detachable buckle (13), wherein the easily detachable buckle (13) is located on both sides of the scraper (11), and the flexible cover plate (12) is fixed to the upper end of the scraper (11), and the flexible cover plate (12) can fully contact the belt below the belt conveyor (10); The vibrating brush (3) is located on the left side of the belt cleaning device (1), and comprises a vibrating motor (31), a hydrophobic brush (32), and a fixing bracket (33). The vibrating motor (31) is installed at the bottom of the hydrophobic brush (32) and is fixed to the bottom of the belt conveyor (10) by the fixing bracket (33), and the hydrophobic brush (32) can fully contact the belt below the belt conveyor (10); The automatic water adding device (5) comprises a buoyancy signal transmitter (51), a fixed rod (52), a retractable signal receiver (53), and a water inlet pipe (54). The buoyancy signal transmitter (51) is in the shape of a sphere with a through center. The buoyancy signal transmitter (51) is nested on the fixed rod (52), and its center diameter is slightly larger than the diameter of the fixed rod (52). The buoyancy signal transmitter (51) can move up and down along the fixed rod (52) and its centerline height is consistent with the horizontal plane; the bottom end of the fixed rod (52) is fixed to the bottom of the water tank (8), and the top end of the fixed rod (52) extends to the bottom of the high-precision metal filter (6) and contacts the high-precision metal filter (6); the retractable signal receiver (53) is installed outside the water tank (8), and the height of the retractable signal receiver (53) is consistent with the preset water level height. The water inlet pipe (54) is arranged at the bottom of the water tank (8) and communicates with the inside of the water tank (8); The automatic sewage discharge device (7) is installed at the bottom of the sewage discharge tank (9) and is connected to the interior of the sewage discharge tank (9); The high-precision metal filter (6) comprises an oblique filter (61) and an axial filter (62); the water tank (8) and the sewage tank (9) are separated by the axial filter (62); the oblique filter (61) is arranged at the top of the water tank (8); the wide-angle nozzle assembly (4) is arranged directly below the oblique filter (61) and the bottom end pipeline is arranged in the water tank (8).

2. A belt water circulation flushing and cleaning device according to claim 1, characterized in that: The aperture of the fan-shaped nozzle (2) is 1 to 3 mm, and the spray coverage range of the fan-shaped nozzle (2) is 120 to 150°.

3. A belt water circulation flushing and cleaning device according to claim 2, characterized in that: The relationship between the spray angle and the effective spray range of the fan-shaped nozzle (2) is shown in the following formula: Where: a is the straight-line distance between the fan-shaped nozzle and the belt, in meters; α is the horizontal inclination angle of the belt, in degrees; β is the horizontal installation angle of the fan-shaped nozzle, in degrees; γ is the coverage angle of the thin water stream sprayed by the fan-shaped nozzle, in degrees; s is the length of the belt covered by the thin water stream sprayed by the fan-shaped nozzle, in meters; is the optimization coefficient.

4. A belt water circulation flushing and cleaning device according to claim 3, characterized in that: The hydrophobic brush (32) is made by spraying a hydrophobic coating and a wear-resistant ceramic coating on a brush. The width of the hydrophobic brush (32) is 10 to 15 cm, and its length is consistent with the belt width of the belt conveyor (10). The vibration direction of the vibration motor (31) is horizontal vibration, and the vibration movement limit distance is 2 to 3 cm.

5. A belt water circulation flushing and cleaning device according to claim 3, characterized in that: The water adding process of the automatic water adding device (5) is carried out according to the following steps: ① The buoyancy signal transmitter (51) can continuously transmit signals horizontally to the left side of the water storage tank (8). When the water level in the water storage tank (8) drops due to the water absorption of the fan-shaped nozzle (2), the wide-angle nozzle assembly (4), and the automatic sewage discharge device (7), the buoyancy signal transmitter (51) will drop accordingly; ② The retractable signal receiver (53) can adjust the installation height h0 of the bottom of the retractable signal receiver (53) from the bottom of the water tank (8) by retracting. The retractable signal receiver (53) can only receive signals transmitted from the buoyancy signal transmitter (51) in the horizontal direction. When the horizontal height h of the buoyancy signal transmitter (51) is less than h0, the retractable signal receiver (53) cannot receive signals; ③ The retractable signal receiver (53) makes the following judgment based on whether it can receive the signal transmitted by the buoyancy signal transmitter (51): h≥h0, receiving the signal, the water inlet pipe (54) is closed, and the water inlet is stopped; h<h0, no signal is received, the water inlet pipe (54) is opened, and water starts to flow in until the retractable signal receiver (53) receives the signal transmitted by the buoyancy signal transmitter (51).

6. A belt water circulation flushing and cleaning device according to claim 3, characterized in that: The flexible covering plate (12) is made of flexible waterproof material.

7. A belt water circulation flushing and cleaning device according to claim 3, characterized in that: The mesh number of the oblique filter (61) is 30000-40000, and the inclination angle is 30-45°. The mesh number of the axial filter (62) is 20000-30000. The oblique filter (61) and the axial filter (62) are both made of wear-resistant stainless steel metal materials.

8. A belt water circulation flushing and cleaning device according to claim 7, characterized in that: The wide-angle nozzle assembly (4) comprises four groups of wide-angle nozzles, the spraying frequency of the wide-angle nozzles is 30 seconds every 2 minutes, the nozzle aperture of the wide-angle nozzles is 0.5 to 1 mm, and the four groups of wide-angle nozzles of the wide-angle nozzle assembly (4) are connected to the same water inlet pipe and connected to the water storage tank (8).

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