Cleaning and sweeping device for mineral separation conveying equipment

Abstract

A cleaning device for beneficiation conveying equipment is characterized in that a conveying belt cleaning mechanism is mounted on the lower portion of a conveying belt and comprises an air cylinder, a brush strip is mounted at the front end of an air cylinder piston rod, and when the piston rod extends in place, the brush strip can be in scraping contact with the conveying belt for cleaning. The cleaning device is installed on the ore dressing conveying belt, can clean and sweep the surface of the conveying belt regularly, does not need manual operation, and is high in automation degree and good in conveying and cleaning effect.

Description

Technical Field

[0001] The utility model relates to the technical field of mineral mining equipment, in particular to a cleaning device for mineral processing and conveying equipment. Background Art

[0002] Conveyor belts are commonly used in mineral processing equipment to transport ore. Ore, laden with grit, dust, and other debris, continuously enters the conveyor belt. As the conveyor belt circulates, the grit, dust, and debris often adhere to the belt surface. Crushed by the drive gears or rollers, they adhere even more firmly to the surface, causing increased wear on the gears, rollers, pressure wheels, and conveyor belts. This in turn leads to increased wear and shortened equipment life. In visual intelligent mineral processing equipment, contamination of the belt, which serves as the background color for the ore, can directly affect the visual recognition system's ability to identify the ore. This hinders efficient production, increases recognition errors, and reduces processing efficiency. Utility Model Content

[0003] The purpose of the utility model is to provide a cleaning device for mineral processing conveying equipment, which is installed on the mineral processing conveyor belt and can realize the operation of regularly cleaning the conveyor belt surface. The device does not require manual operation, has a high degree of automation, and has a good cleaning effect on the conveying.

[0004] In order to achieve the above-mentioned purpose, the technical solution of the present utility model is as follows:

[0005] A cleaning device for mineral processing conveying equipment, a conveyor belt cleaning mechanism is installed at the lower part of the conveyor belt, the conveyor belt cleaning mechanism includes a cylinder, and a brush strip is installed at the front end of the cylinder piston rod. When the piston rod is extended to the right position, the brush strip can scrape and contact the conveyor belt for cleaning.

[0006] After the conveyor belt has run for a while, the PLC controls the cylinder solenoid valve, causing the piston rod to extend and the brush bar to contact and scrape the circulating conveyor belt. At this time, the position sensor on the cylinder head is energized, and the system indicates that cleaning is in progress. After a period of cleaning, the PLC controls the cylinder solenoid valve, causing the piston rod to retract, separating the brush bar from the conveyor belt, completing a cleaning cycle. At this time, the position sensor on the rear of the cylinder is energized, and the system indicates that cleaning is not in progress.

[0007] The cylinder can be replaced by an electric push rod. The drive motor of the electric push rod is a stepper motor or a servo motor. When the brush wears out or the belt cleaning effect is poor, the feed distance of the electric push rod can be controlled to increase to improve the above situation.

[0008] A tensioning roller mechanism is provided at the contact point between the conveyor belt and the brush strip, forming an oblique or vertical conveyor belt. The brush strip scrapes against the oblique or vertical portion of the conveyor belt. The tensioning roller mechanism consists of three rollers, wherein a tensioning shaft located between two rollers is connected to a mounting plate via an adjusting bolt. The threaded hole of the tensioning shaft extension is screwed to the threaded portion of the adjusting bolt. The long groove on the mounting plate defines the movable direction of the tensioning shaft extension. The tensioning wheel shaft is adjusted up and down by tightening the adjusting bolt. As a result, a vertical or oblique section is formed on the conveyor belt between the supporting wheel shaft and the tensioning wheel shaft. Debris, dust, and sand and gravel dropped by the brush strip when scraping against the conveyor belt surface fall to the ground due to gravity, preventing debris and sand and gravel from falling onto the surface of the cylinder.

[0009] One solution involves mounting the cylinder on a frame via a support bracket. Several air nozzles are mounted on the bracket in a horizontal array, with the nozzle outlets corresponding to the position of the brush strip when the cylinder piston rod is retracted. Each time the system detects that cleaning is complete and enters standby mode, the solenoid valve connected to the air nozzles is energized, and the air nozzle array applies air to the brush, removing sand, dust, and debris from the brush strip.

[0010] Another solution involves installing a number of air nozzles at the end of the cylinder's piston rod, forming a horizontal array with the nozzle outlets aligned with the center of the brush bar. The air nozzle array advances along with the brush bar. When the system detects the brush bar has fully extended, the air nozzle solenoid valves open, and the air nozzles purge the brush bar, simultaneously sweeping and blowing away debris, dust, and gravel within the brush bar. When the system detects the brush bar has fully retracted, the air nozzle solenoid valves close, stopping the purge.

[0011] The rear end of the cylinder piston rod is a screw, which is sleeved with a limit sleeve and threaded with an adjustment nut. The limit sleeve is positioned by the adjustment nut. After the brush has been used repeatedly for a certain period of time, if the belt cleaning level does not meet the requirements, the adjustment nut at the rear end of the cylinder piston can be manually adjusted to increase the piston stroke so that it just contacts the belt. After repeated adjustments, the brush can be replaced after the stroke is exhausted.

[0012] 1. The utility model uses a brush bar that can be automatically extended and retracted by a cylinder to scrape and clean the conveyor belt in circulation, which greatly increases the service life of the conveyor belt, reduces production losses, and improves production efficiency.

[0013] 2. The utility model is also provided with a follow-up or non-follow-up air jet array to automatically blow the brush strips to prevent the accumulation of debris, dust and sand and gravel from affecting the cleaning effect.

[0014] 3. The utility model has a compact and simple structure, a high degree of automation, and is easy to operate. All actions can be automatically controlled by processor devices such as single-chip microcomputers, without manual intervention, and easy maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Main structural diagram for cleaning the conveyor belt; (Example 1)

[0016] Figure 2 for Figure 1 The enlarged structure diagram of position Ⅰ in the middle;

[0017] Figure 3 This is a structural elevation diagram of the conveyor belt cleaning mechanism of Example 1;

[0018] Figure 4 This is a front view of the conveyor belt cleaning mechanism of Example 1 (cylinder retracted state)

[0019] Figure 5 This is a front view of the conveyor belt cleaning mechanism of Example 1 (with the cylinder extended).

[0020] Figure 6 This is a structural elevation diagram of the conveyor belt cleaning mechanism of Example 2;

[0021] The serial numbers and component names in the figure are: 1-conveyor belt; 11-driving motor; 2-tensioning roller mechanism; 3-conveyor belt cleaning mechanism; 31-support frame; 32-cylinder; 33-limiting sleeve; 34-brush strip; 35-air nozzle; 36-adjusting nut. DETAILED DESCRIPTION Example 1

[0022] A cleaning device for mineral processing conveying equipment, wherein a conveyor belt cleaning mechanism 3 is installed at the lower part of the conveyor belt 1, and the conveyor belt cleaning mechanism 3 comprises a cylinder 32, and a brush strip 34 is installed at the front end of the piston rod of the cylinder 32. When the piston rod is extended into place, the brush strip 34 can scrape and contact the conveyor belt 1 for cleaning.

[0023] A tensioning roller mechanism 2 is provided at the contact position between the conveyor belt 1 and the brush strip 34 . The tensioning roller mechanism 2 forms an oblique or vertical conveyor belt 1 , and the brush strip 34 scrapes and contacts the oblique or vertical portion of the conveyor belt 1 .

[0024] The cylinder 32 is mounted on the frame through a support frame 31 , and a plurality of air nozzles 35 are mounted on the support frame 31 to form a horizontal array. The outlets of the air nozzles 35 correspond to the positions of the brush strips 34 when the piston rod of the cylinder 32 is retracted.

[0025] The rear end of the piston rod of the cylinder 32 is a screw rod, which is sleeved with a limiting sleeve 33 and threaded with an adjusting nut 36 . The limiting sleeve 33 is positioned by the adjusting nut 36 . Example 2

[0026] A cleaning device for mineral processing conveying equipment, a conveyor belt cleaning mechanism 3 is installed in the middle position of the conveyor belt 1, the conveyor belt cleaning mechanism 3 includes a cylinder 32, and a brush strip 34 is installed at the front end of the piston rod of the cylinder 32. When the piston rod is extended to the right position, the brush strip 34 can scrape and contact the conveyor belt 1 for cleaning.

[0027] A tensioning roller mechanism 2 is provided at the contact position between the conveyor belt 1 and the brush strip 34 . The tensioning roller mechanism 2 forms an oblique or vertical conveyor belt 1 , and the brush strip 34 scrapes and contacts the oblique or vertical portion of the conveyor belt 1 .

[0028] A plurality of air nozzles 35 are further installed at the end of the piston rod of the cylinder 32 to form a horizontal array, and the outlets of the air nozzles 35 correspond to the middle of the brush strip 34 .

[0029] The rear end of the piston rod of the cylinder 32 is a screw rod, which is sleeved with a limiting sleeve 33 and threaded with an adjusting nut 36 . The limiting sleeve 33 is positioned by the adjusting nut 36 . Example 3

[0030] The difference from Example 1 and Example 2 is that the air cylinder 32 is replaced by an electric push rod, which is driven by a servo motor or a stepper motor.

Claims

1. A cleaning device for mineral processing conveying equipment, characterized in that: A conveyor belt cleaning mechanism (3) is installed at the lower part of the conveyor belt (1). The conveyor belt cleaning mechanism (3) includes a cylinder (32). A brush strip (34) is installed at the front end of the piston rod of the cylinder (32). When the piston rod is extended to the right position, the brush strip (34) can scrape and contact the conveyor belt (1) for cleaning.

2. The cleaning device for mineral processing conveying equipment according to claim 1, characterized in that: The cylinder (32) can be replaced by an electric push rod.

3. The cleaning device for mineral processing conveying equipment according to claim 1, characterized in that: A tensioning roller mechanism (2) is provided at the contact position between the conveyor belt (1) and the brush strip (34), and the position of the tensioning roller mechanism (2) forms an oblique or vertical conveyor belt (1), and the brush strip (34) is in scraping contact with the oblique or vertical portion of the conveyor belt (1).

4. The cleaning device for mineral processing conveying equipment according to claim 1, characterized in that: The cylinder (32) is mounted on the frame via a support frame (31). A plurality of air nozzles (35) are mounted on the support frame (31) to form a horizontal array. The outlets of the air nozzles (35) correspond to the position of the brush bar (34) when the piston rod of the cylinder (32) is retracted.

5. The cleaning device for mineral processing conveying equipment according to claim 1, characterized in that: A plurality of air nozzles (35) are also installed at the end of the piston rod of the cylinder (32) to form a horizontal array, and the outlets of the air nozzles (35) correspond to the middle of the brush strip (34).

6. The cleaning device for mineral processing conveying equipment according to claim 1, characterized in that: The rear end of the piston rod of the cylinder (32) is a screw rod, which is sleeved with a limiting sleeve (33) and threaded with an adjusting nut (36), and the limiting sleeve (33) is positioned by the adjusting nut (36).

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