Belt deviation rectifying and self-cleaning device and using method thereof

Abstract

The invention discloses a belt deviation-rectifying self-cleaning device and a using method thereof.The belt deviation-rectifying self-cleaning device comprises a roller and a rolling shaft and further comprises an annular middle partition plate, and the annular middle partition plate is fixedly connected into the center of the roller and located outside the rolling shaft; the number of the automatic heat transfer assemblies is two, and the automatic heat transfer assemblies are symmetrically distributed about the arc-shaped middle partition plate. The roller is divided into the left section and the right section through the middle partition plate, a hot air source is connected through the rotary joint, the hot air source pushes away the first arc-shaped piece and the second arc-shaped piece, the elastic heat transfer pad makes contact with the inner wall of the outer circle of the roller, and heat is gradually transferred to the surface of the roller from the center of the roller to the end of the roller; the temperature of the surface of the roller is kept high through the periodic operation, the liquid-phase bridging effect among particles is reduced, the adhesion is reduced, and the pyrite cinder is prevented from being adhered to the surface of the roller.

Description

Technical Field

[0001] The invention relates to the technical field of deviation correcting devices, and in particular to a belt deviation correcting device and a use method thereof. Background Art

[0002] During the use of the belt conveyor, the running belt will usually deviate due to long-term wear and tear or material sticking to the roller. The general belt deviation correction device corrects the deviation through the optional roller group at the bottom of the belt or the vertical rods at the edge of the belt, but this correction is only effective for some slightly deviated belts. When conveying sulfuric acid slag with a high water content, as the belt carries materials, due to the strong adhesion of sulfuric acid slag when it comes into contact with water, part of the slag red powder adheres to the surface of the belt roller, causing the roller surface to be bumpy and uneven, thus causing the belt to deviate seriously. In this case of serious belt deviation, the correction effect of the general belt deviation correction device is poor, resulting in serious belt material spillage. If it is not discovered in time, the entire belt may even be torn.

[0003] For example, Chinese invention patent publication number CN119503344A discloses a belt conveyor with a deviation correction mechanism, including a concave conveyor frame, two circular notches are arranged on both sides of the interior of the concave conveyor frame, and a transmission roller is rotatably arranged between the circular notches corresponding to each other on both sides of the interior of the concave conveyor frame, and the two transmission rollers are connected by a conveyor belt transmission, and one end of the transmission roller is located outside the circular notch and is provided with a push block for horizontal sliding sleeve, and a groove is arranged on the inner side of the concave conveyor frame near the transmission roller, and a guide roller is rotatably arranged in the groove. The deviation correction of this patent is carried out after the belt is rectified, and is not suitable for the case where the belt of conveying sulfuric acid slag with a high water content is seriously deviated. Since the deviated conveyor belt is pushed back to the right position by the push block, the contact area is limited, and it is difficult to effectively correct the roller that has formed a bumpy surface.

[0004] Another example is the Chinese invention patent publication number CN119490022A, which discloses a roller deviation correction structure and a belt conveyor thereof, including a roller assembly, a deviation correction assembly, a support assembly, a rotation connection contact assembly, and an adjustment assembly. The roller assembly includes a roller body, and both ends of the roller body are provided with a deviation correction notch, a slide hole, and a support groove. A connection spring is fixedly connected in the support groove. The roller assembly is provided with a self-rotation hole, and a roller self-rotation shaft is rotatably installed in the self-rotation hole. The deviation correction assembly is evenly installed on the end of the roller body. The deviation correction assembly includes a bearing sheet, and the end of the bearing sheet away from the support groove is fixedly connected to the roller body through a flexible connection part, and a sliding rod is provided on the side of the bearing sheet close to the roller body. The deviation correction device of this patent has a complex structure and poor reliability, and always generates a component force close to the roller body on the conveyor belt. Excessive pressure on the conveyor belt may cause tearing. Summary of the invention

[0005] The technical problem to be solved by the present invention is that when the existing belt conveyor transports sulfuric acid slag with a high water content, the drum surface is prone to unevenness, which in turn causes the belt to seriously deviate. For this purpose, a belt deviation correction and self-cleaning device and a use method thereof are provided.

[0006] The technical solution of the present invention is: a belt deviation correction and self-cleaning device, comprising: a sliding-matching roller and a roller shaft, and also comprising: an annular middle partition, the annular middle partition is fixed in the center of the roller and is located outside the roller shaft; an automatic heat transfer component, the automatic heat transfer component has two, symmetrically distributed about the arc-shaped middle partition, the automatic heat transfer component comprises: a first arc-shaped sheet, one end of the first arc-shaped sheet is hinged to the inner side of one end of the roller, and the other end is in contact with the annular middle partition; a second arc-shaped sheet, one end of the second arc-shaped sheet is hinged to the inner side of one end of the roller, and the other end is in contact with the annular middle partition, the second arc-shaped sheet and the first arc-shaped sheet are combined into a truncated cone-shaped space, and an elastic connector is connected between the second arc-shaped sheet and the first arc-shaped sheet and the annular middle partition; an elastic heat transfer pad, the elastic heat transfer pad is sleeved outside the truncated cone-shaped space; a rotary joint, the rotary joint is installed on one end of the roller and is located between the first arc-shaped sheet and the second arc-shaped sheet.

[0007] The improvement of the above solution is that the elastic heat transfer pad has an enlarged portion at one end close to the outer wall of the drum.

[0008] In the above scheme, there are several elastic heat transfer pads, which are distributed at intervals in the axial direction of the truncated cone space.

[0009] A further improvement of the above solution is that the inner surface of the drum is provided with grooves distributed along the axial direction, and the outer surface of the roller is provided with protrusions that cooperate with the grooves.

[0010] A further improvement of the above solution is that both ends of the drum are connected to the roller via springs.

[0011] Another improvement of the above solution is that the first arc-shaped piece and the second arc-shaped piece are provided with a plurality of limiting parts corresponding to the elastic heat transfer pads.

[0012] Another improvement of the above solution is that a spiral guide groove is provided on the outer surface of the drum.

[0013] The method for using the belt deviation correction and self-cleaning device includes the following steps: connecting to a hot air source through a rotary joint, inputting a hot air flow into a truncated cone-shaped space, and separating the first arc-shaped sheet and the second arc-shaped sheet under the pressure of the hot air flow, thereby driving an elastic heat transfer pad on the surface of the first arc-shaped sheet and the second arc-shaped sheet to move toward the direction of the rotary joint. While the elastic heat transfer pad moves axially, it also squeezes the inner surface of the outer wall of the drum to transfer the heat out.

[0014] The beneficial effect of the present invention is that the drum is divided into two left and right sections by a middle partition, and a hot air source is connected through a rotating joint. The hot air source pushes the first arc-shaped sheet and the second arc-shaped sheet apart, and the elastic heat transfer pad then contacts the outer circle inner wall of the drum, and gradually transfers the heat from the center of the drum to the end of the drum to the surface of the drum. Such periodic operation keeps the temperature of the drum surface high, reduces the liquid phase bridging effect between particles, reduces adhesion, and prevents sulfuric acid slag from adhering to the drum surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the belt deviation correction and self-cleaning device of the present invention; Figure 2 yes Figure 1 Schematic diagram of the first arc-shaped sheet, the second arc-shaped sheet and the elastic heat transfer pad; Figure 3 yes Figure 1 Schematic diagram of the coordination of the middle annular middle partition, the first arc-shaped piece and the second arc-shaped piece; Figure 4 It is a schematic diagram of the use state of the present invention; Figure 5 It is a schematic diagram of the cooperation between the drum and the roller in the present invention; In the figure, 1, roller, 2, roller, 3, annular middle partition, 4, first arc-shaped sheet, 5, second arc-shaped sheet, 6, elastic connecting member, 7, elastic heat transfer pad, 8, rotary joint, 9, limiting part. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention are described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments by ordinary technicians in this field without creative work are within the protection scope of the present invention.

[0017] like Figure 1As shown, the belt deviation correction and self-cleaning device includes: a sliding-matched roller 1 and a roller 2, and also includes: an annular middle partition 3, which is fixed in the center of the roller and located outside the roller; an automatic heat transfer component, which has two automatic heat transfer components and is symmetrically distributed about the arc-shaped middle partition, and the automatic heat transfer component includes: a first arc-shaped piece 4, one end of the first arc-shaped piece is hinged to the inner side of one end of the roller, and the other end is in contact with the annular middle partition; a second arc-shaped piece 5, one end of the second arc-shaped piece is hinged to the inner side of one end of the roller, and the other end is in contact with the annular middle partition, the second arc-shaped piece and the first arc-shaped piece are combined into a truncated cone-shaped space, and an elastic connector 6 is connected between the second arc-shaped piece and the first arc-shaped piece and the annular middle partition; an elastic heat transfer pad 7, which is sleeved outside the truncated cone-shaped space; a rotary joint 8, which is installed on one end of the roller and is located between the first arc-shaped piece and the second arc-shaped piece. The first arc-shaped sheet and the second arc-shaped sheet are normally closed into a truncated cone shape, and the small end of the truncated cone is in contact with the annular middle partition. The drum is annular and has an inner circular surface and an outer circular surface. The space between the inner circular surface and the outer circular surface is used to accommodate the automatic heat transfer component. The material of the drum is metal, and the surface of the drum is coated with a high temperature resistant coating such as polytetrafluoroethylene. The material of the drum can also be carbon steel. In order to prevent carbon steel from oxidation, an anti-corrosion coating such as epoxy resin is provided.

[0018] As a preferred example of the present invention, the elastic heat transfer pad has an enlarged portion at one end close to the outer wall of the drum, and the contact area between the elastic heat transfer pad and the outer circumferential surface of the drum can be increased by the enlarged portion.

[0019] There can be only one elastic heat transfer pad, but preferably there are several elastic heat transfer pads, which are distributed axially at intervals in the truncated cone space, so that each elastic heat transfer pad can move toward the end of the drum when the first arc-shaped sheet and the second arc-shaped sheet expand and separate, thereby increasing the heat transfer area, which is equivalent to each elastic heat transfer pad being responsible for a heat transfer interval.

[0020] The first arc-shaped sheet and the second arc-shaped sheet are provided with a plurality of limiting parts 9 corresponding to the elastic heat transfer pads. After the input of the hot air source is stopped, most of the hot air source in the truncated cone space is output by the rotary joint, the air pressure in the truncated cone space is reduced, and the elastic connecting member pushes the first arc-shaped sheet and the second arc-shaped sheet back to their original positions. At this time, the elastic heat transfer pad will move toward the direction of the annular middle partition as the first arc-shaped sheet and the second arc-shaped sheet swing. In order to prevent multiple elastic heat transfer pads from being stacked together, the limiting part can ensure that each elastic heat transfer pad will not move after returning to its initial position.

[0021] The method for using the belt deviation correction and self-cleaning device includes the following steps: connecting to a hot air source through a rotary joint, inputting a hot air flow into the truncated cone-shaped space; as the hot air flow increases, the pressure in the truncated cone-shaped space increases; the first arc-shaped sheet and the second arc-shaped sheet are separated by the pressure of the hot air flow, driving the elastic heat transfer pad on the surface of the first arc-shaped sheet and the second arc-shaped sheet to move toward the rotary joint; while the elastic heat transfer pad moves axially, it also squeezes the inner surface of the outer wall of the drum to transfer the heat out.

[0022] The present invention provides heating through hot air flow and realizes heat conduction through the first arc-shaped sheet, the second arc-shaped sheet and the elastic heat transfer pad. Compared with the prior art heating method of directly opening holes on the drum surface and introducing hot steam, the present invention does not damage the drum and the belt.

[0023] The above method can be used when the drum is running normally. The rotary joints at both ends of the drum are connected to the hot air source respectively, and the left and right parts of the drum are heated at the same time. It can also be used when there is a lot of sulfuric acid slag on a part of the drum surface, such as Figure 4 As shown in the figure, for example, if there is more sulfuric acid slag on the left side of the drum, the drum belt will usually deviate to the right. By opening the rotary joint at the left end of the drum and connecting the hot air source, the left drum can be heated to eliminate the sulfuric acid slag on the left drum surface. Therefore, the direction of the belt deviation can be used to determine which part needs to be heated, thereby improving energy utilization.

[0024] As a preferred example of the present invention, Figure 5 As shown, the inner surface of the roller is provided with grooves distributed along the axial direction, and the outer surface of the roller is provided with protrusions that match the grooves. When the belt deviates, the deviation is eliminated by sliding the roller on the roller. The two ends of the roller are connected to the roller through springs. After the deviation is eliminated, the roller returns to the normal position under the action of the springs on both sides of the roller.

[0025] As a preferred example of the present invention, a spiral guide groove is provided on the outer surface of the drum, and when the sulfuric acid slag is melted, it is discharged along the spiral guide groove.

[0026] The matching surfaces of the first arc-shaped piece and the second arc-shaped piece of the present invention can be connected as a whole through a high-temperature resistant elastic connecting piece.

Claims

1. Belt deviation correction and self-cleaning device, including: The roller (1) and the roller (2) are characterized in that they also include: an annular middle partition (3), which is fixed in the center of the roller and located outside the roller; an automatic heat transfer component, which has two automatic heat transfer components and is symmetrically distributed about the arc-shaped middle partition, and the automatic heat transfer component includes: a first arc-shaped piece (4), one end of the first arc-shaped piece is hinged to the inner side of one end of the roller, and the other end is in contact with the annular middle partition; a second arc-shaped piece (5), one end of the second arc-shaped piece is hinged to the inner side of one end of the roller, and the other end is in contact with the annular middle partition, the second arc-shaped piece and the first arc-shaped piece are combined to form a truncated cone-shaped space, and an elastic connecting piece (6) is connected between the second arc-shaped piece and the first arc-shaped piece and the annular middle partition; an elastic heat transfer pad (7), which is sleeved outside the truncated cone-shaped space; and a rotary joint (8), which is installed on one end of the roller and is located between the first arc-shaped piece and the second arc-shaped piece.

2. The belt deviation correction and self-cleaning device according to claim 1, characterized in that: The elastic heat transfer pad has an enlarged portion at one end close to the outer wall of the drum.

3. The belt deviation correction and self-cleaning device according to claim 1, characterized in that: There are a plurality of elastic heat transfer pads, which are distributed at intervals in the axial direction of the truncated cone-shaped space.

4. The belt deviation correction and self-cleaning device according to claim 1, characterized in that: The inner surface of the drum is provided with grooves distributed along the axial direction, and the outer surface of the roller is provided with convex blocks matched with the grooves.

5. The belt deviation correction and self-cleaning device according to claim 4, characterized in that: The two ends of the drum are connected with the roller through springs.

6. The belt deviation correction and self-cleaning device according to claim 3, characterized in that: The first arc-shaped piece and the second arc-shaped piece are provided with a plurality of limiting portions (9) corresponding to the elastic heat transfer pads.

7. The belt deviation correction and self-cleaning device according to claim 1, characterized in that: The outer surface of the drum is provided with a spiral guide groove.

8. The method for using the belt deviation correction and self-cleaning device according to any one of claims 1 to 7, characterized in that: The following steps are involved: The hot air source is connected through the rotating joint, and the hot air flow is input into the truncated cone space. The first arc-shaped sheet and the second arc-shaped sheet are separated by the pressure of the hot air flow, driving the elastic heat transfer pad on the surface of the first arc-shaped sheet and the second arc-shaped sheet to move toward the rotating joint. While the elastic heat transfer pad moves axially, it also squeezes the inner surface of the outer wall of the drum to transfer the heat.

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