A belt conveyor intermediate discharge device

Abstract

The application discloses a belt conveyor intermediate discharging device. The belt conveyor intermediate discharging device comprises a belt conveyor, the belt conveyor at least comprises a belt and a supporting roller arranged below the belt, two groups of adjustable angle supporting rollers are continuously arranged below the belt, each group of the adjustable angle supporting rollers comprises a left supporting roller located at a left half part of the belt and a right supporting roller located at a right half part of the belt, the left supporting roller and the right supporting roller are installed on an adjustable angle support below, and a supporting roller driving device is used for driving the adjustable angle support to drive the left supporting roller and the right supporting roller to be in a V shape or an inverted V shape. The patent main body is installed on an intermediate frame of the belt conveyor, discharging at any point of the belt conveyor can be realized, the belt conveyor intermediate discharging device has a wide material range and can simplify process flow design.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of intermediate unloading device of belt conveyor. BACKGROUND

[0002] The transfer of steel plant materials mainly relies on belt conveyor, and the unloading mode of belt conveyor is generally divided into end unloading and intermediate unloading according to the location of unloading point. The common intermediate unloading device at present includes plow unloader and unloading trolley. The plow unloader uses plow to scrape the material on the belt surface from one side or both sides, but the plow of the plow unloader needs to contact with the belt, which will damage the belt after long time use, and also cause unclean unloading when the plow is seriously worn. In addition, the plow unloader is only suitable for powder unloading, and its unloading effect is poor for block materials such as lump ore and finished sintered ore, and its application range is narrow. The unloading trolley is divided into mobile type and fixed type. The mobile unloading trolley is mainly used for unloading on silo, such as coke silo, sintered pellet finished ore silo and blast furnace ore tank, etc. The fixed unloading trolley is used for fixed point unloading in the middle of belt conveyor. The unloading trolley unloads by lifting the belt surface and using the diverter roller and hopper, but its structure is complex, it needs to lift the belt surface to achieve a certain drop, which increases the overall power consumption of the belt conveyor, increases the crushing rate of block materials, occupies a large space, and is not suitable for reversible belt. SUMMARY

[0003] In view of the above problems, the present application provides a novel fixed point unloading device in the middle of belt conveyor.

[0004] In order to overcome the above defects, the present application provides a kind of intermediate unloading device of belt conveyor, which comprises a belt conveyor, wherein the belt conveyor at least comprises a belt and a carrier roller arranged below the belt;Two or more groups of adjustable angle carrier rollers are arranged continuously below the belt;Each group of adjustable angle carrier rollers comprises a left carrier roller located in the left half of the belt and a right carrier roller located in the right half of the belt, and the left carrier roller and the right carrier roller are installed on the adjustable angle support below.

[0005] A carrier roller driving device is used to drive the adjustable angle support to drive the left carrier roller and the right carrier roller to tilt upward in V shape or downward in inverted V shape.

[0006] Further, a belt pressing device in inverted V shape is arranged on the belt to match the belt;A belt pressing driving device is used to press the belt pressing device down the belt after receiving the control signal.

[0007] Further, the belt pressing device comprises an inverted V-shaped belt pressing frame, and a roller is arranged on the lower surface of the inverted V-shaped belt pressing frame; the belt pressing driving device comprises a base arranged on both sides of the belt, and a lifting device is arranged on both sides of the base; a connecting rod is arranged between the two lifting devices; and the inverted V-shaped belt pressing frame is mounted on the connecting rod.

[0008] Further, the belt pressing device comprises an inverted V-shaped belt pressing frame, and a roller is arranged on the lower surface of the inverted V-shaped belt pressing frame; the belt pressing driving device comprises a base arranged on both sides of the belt, and a rotating shaft is mounted on the two bases, the inverted V-shaped belt pressing frame is mounted on the rotating shaft; and a driving device is arranged for driving the rotating shaft to rotate so as to horizontally arrange or vertically downwardly arrange the inverted V-shaped belt pressing frame.

[0009] Further, a belt pressing and cleaning device is arranged on the lower surface of the inverted V-shaped belt pressing frame.

[0010] Further, the angle-adjustable support comprises a left roller support and a right roller support; the roller driving device comprises a long sliding groove integrally arranged on the left roller support and the right roller support; and a sliding block is slidably arranged in the sliding groove.

[0011] A support frame is arranged below the left roller support and the right roller support, and the support frame comprises a bottom rod and an intermediate rod vertically arranged on the middle part of the bottom rod; the left roller support and the right roller support are hingedly connected to the upper end of the intermediate rod of the inverted V-shaped support frame on the side close to the middle part;

[0012] Ear holes are arranged on both ends of the bottom rod, and two swing rods are symmetrically hingedly connected in the two ear holes; the upper end of the two swing rods is hingedly connected to the sliding block;

[0013] A driving device is hingedly connected to the lower end of the two swing rods through a driving rod, and the driving device is used for driving the lower end of the two swing rods to simultaneously move to the middle part so as to drive the left roller and the right roller to simultaneously tilt upward to form a V shape, or the driving device is used for driving the lower end of the two swing rods to simultaneously move to both sides so as to drive the left roller and the right roller to tilt downward to form an inverted V shape.

[0014] Further, the angle-adjustable support comprises a left roller support and a right roller support, and the left roller support and the right roller support are hingedly connected to each other; the roller driving device comprises a fixed support frame or a lifting support frame downwardly arranged on the middle part of the left roller support and the right roller support; a lifting support frame or a fixed support frame is downwardly arranged on the side close to the edge of the belt of the left roller support and the right roller support; and the lifting support frames simultaneously rise or fall so as to make the left roller and the right roller form a V shape or an inverted V shape.

[0015] Further, a discharging hopper is arranged on both sides of the angle-adjustable roller.

[0016] Further, the belt pressing and cleaning device is a roller brush and / or a scraper.

[0017] The present application converts the originally "groove type" belt into "convex type" by turning down the two sides of the belt, so that the carried material is unloaded to both sides under the action of its own gravity and the vibration of the belt running. When the unloaded material is powder with high water content or material with strong viscosity, the adjustable scraper and electric roller brush on the belt pressing and cleaning device can be used to complete the unloading operation. The present application is suitable for a wide range of materials, has small equipment size, causes less damage to the belt, does not need to raise the belt surface, and is suitable for reversible belt. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 : the schematic diagram of the normal belt material state of the present application;

[0019] Figure 2 : the schematic diagram of the normal unloading state of the present application;

[0020] Figure 3 : the schematic diagram of the relative position between the idler and the belt when the sliding block is not arranged;

[0021] Figure 4 : the three-dimensional schematic diagram of the adjustable angle idler and its driving mechanism, connecting rod, swing rod, etc.;

[0022] Figure 5 : the three-dimensional assembly schematic diagram of the normal belt material state of the present application;

[0023] Figure 6 : the three-dimensional assembly schematic diagram of the normal unloading state of the present application;

[0024] Figure 7 : the three-dimensional assembly schematic diagram of the closed chute of the present application;

[0025] The meanings of the various marks in the drawings are as follows: 1 - roller brush motor of belt pressing and cleaning device; 2 - gear set; 3 - motor and hydraulic rod; 4 - upper belt surface; 5 - theoretical belt surface; 6 - electric roller brush; 7 - scraper; 8 - transmission connecting rod; 9 - idler and idler support; 10 - belt pressing wheel; 11 - sliding block; 12 - swing rod; 13 - belt pressing and cleaning device lifting motor; 14 - sealed chute; DETAILED DESCRIPTION

[0026] The embodiments of the present application will be described in detail below with reference to the drawings.

[0027] In the description of the present application, it needs to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0028] The terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0029] In the description of the present application, it needs to be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integral connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0030] In an embodiment of the present application, the present application mainly includes several groups of adjustable angle rollers 9 and their connecting rods 8, drive mechanisms 3, belt cleaning devices 10 and their rotating drive mechanisms 1, closed discharge chute 14 and other parts.

[0031] The adjustable angle rollers 9 are respectively mounted on the left roller frame and the right roller frame; a long sliding groove is integrally arranged on the left roller frame and the right roller frame; a sliding block 11 is slidably arranged in the sliding groove;

[0032] The roller drive device includes a support frame arranged below the left roller frame and the right roller frame, the support frame including a bottom rod and an intermediate rod vertically arranged at the middle part of the bottom rod; the left roller frame and the right roller frame are hinged to the upper end of the intermediate rod of the mountain-shaped support frame at the middle side;

[0033] Ear holes are arranged at both ends of the bottom rod, and two swing rods 12 are symmetrically hinged in the two ear holes; the upper ends of the two swing rods are hinged to the sliding block;

[0034] A drive device is hinged to the lower ends of the two swing rods through a drive rod, and the drive device is used to drive the lower ends of the two swing rods to move to the middle at the same time to drive the left roller and the right roller to tilt upward to form a V shape; or drive the lower ends of the two swing rods to move to both sides at the same time to drive the left roller and the right roller to tilt downward to form an inverted V shape.

[0035] This invention transforms the original "grooved" cross-section of the belt into a "convex" shape by folding down the sides of the belt, thereby allowing the transported material to be unloaded to both sides under its own weight and the vibration of the belt during operation.

[0036] In another embodiment of the present invention, the adjustable angle bracket includes a left idler frame and a right idler frame, which are hinged to each other; the idler drive device includes a fixed support frame disposed downward between the left idler frame and the right idler frame; and a lifting support frame disposed downward on the side of the left idler frame and the right idler frame near the edge of the belt; the lifting support frame is raised or lowered simultaneously to make the left idler and the right idler form a V-shape or an inverted V-shape.

[0037] The adjustable angle bracket may include a left idler frame and a right idler frame, which are hinged to each other; the idler drive device includes a lifting support frame disposed downward between the left and right idler frames; and a fixed support frame disposed downward on the side of the left and right idler frames near the edge of the belt; the lifting support frame is raised or lowered simultaneously to make the left and right idler frames form a V-shape or an inverted V-shape.

[0038] The aforementioned lifting support frame can be a lifting cylinder or an electric lifting device, etc.

[0039] Under normal conveyor belt conditions, the belt pressing and cleaning device 10 is in the attached position. Figure 1 When the belt is raised, the hydraulic push rod 3 pushes outward, and the two swing rods 12 rotate in opposite directions, causing the idler roller 9 to extend outward. At this time, the belt cross-section is concave, allowing the material to pass smoothly. In the unloading state, the hydraulic push rod 3 retracts, the swing rods 12 rotate in opposite directions, and the idler roller 9 retracts inward. At this time, the belt cross-section is convex, the belt pressing and cleaning device 10 presses down on the belt surface, and the idler roller tilts at approximately 35 degrees. Under the influence of gravity and equipment vibration, the material is unloaded from both sides into the closed chute 14. (See attached diagram) Figure 2 .

[0040] In this invention, multiple sets of adjustable-angle idlers work together to achieve the switching between material conveying and unloading processes. The number and spacing of the adjustable-angle idlers can be adjusted according to the actual unloading situation on site. When material arrives from direction A, the control system controls multiple sets of hydraulic rods to move through interlocking between the equipment. The adjustable-angle idlers are arranged at different inclination angles to ensure that the belt transitions from a grooved shape to a convex shape. At the same time, the #1 belt pressing and cleaning device lifts, and the #2 belt pressing and cleaning device presses down, so that the belt is pressed tightly against the idlers, completing the unloading preparation work. When material arrives from direction B, the #2 belt pressing and cleaning device lifts, and the #1 belt pressing and cleaning device presses down, completing the preparation work for the belt to run in reverse and unload. (See attached diagram) Figure 6As shown. When the unloading operation is completed, the 1#2# belt cleaning device is lifted, and all the adjustable angle rollers are fully extended. At this time, the belt surface is concave, and the material can pass smoothly, as shown in the attached Figure 5

[0041] In the present application, the rollers are placed on the sliding blocks mainly to avoid the outer edge of the roller being exposed outside the belt during unloading, which causes the material to contact the roller and aggravate the wear of the roller and other components, as shown in the attached Figure 3 The belt cleaning device is composed of a set of belt pressing wheels, two electric roller brushes, and two adjustable angle scrapers. The two motors are the roller brush working motor and the belt cleaning device lifting and falling control motor, as shown in the attached Figure 5 A dust removal cover interface is reserved above the closed chute discharge area, and the remaining unsealed areas are sealed with dust curtains or dense brushes to ensure good dust removal effect. The chute inclined section is installed with a vibrator at an appropriate position to avoid high-moisture powder from blocking the discharge port. The two sides and the top of the closed chute are provided with maintenance holes to meet the daily maintenance and repair of the roller motor and the belt cleaning device.

[0042] In the description of the present specification, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0043] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.​

Claims

1. An intermediate unloading device for a belt conveyor, comprising a belt conveyor, said belt conveyor comprising at least a belt and a carrier roller arranged under the belt; characterized in that: Two or more groups of adjustable angle rollers are arranged continuously below the belt; Each group of adjustable angle rollers comprises left rollers arranged on the left half of the belt and right rollers arranged on the right half of the belt, the left rollers and the right rollers being mounted on adjustable angle brackets below; A roller driving device is arranged for driving the adjustable angle brackets to drive the left rollers and the right rollers to simultaneously tilt upward in a V shape or downward in an inverted V shape; A belt pressing device is arranged on the belt in an inverted V shape to match the belt, and a belt pressing driving device is arranged for pressing the belt pressing device toward the belt upon receiving a control signal; The belt pressing device comprises an inverted V-shaped belt pressing bracket, and rollers are arranged on the lower surface of the inverted V-shaped belt pressing bracket; the belt pressing driving device comprises bases arranged on both sides of the belt, lifting devices arranged on both sides of the bases, a connecting rod arranged between the two lifting devices, and the inverted V-shaped belt pressing bracket mounted on the connecting rod; The adjustable angle brackets comprise left roller brackets and right roller brackets; the roller driving device comprises long grooves integrally arranged on the left roller brackets and the right roller brackets, and sliding blocks slidingly arranged in the grooves; Support brackets are arranged below the left roller brackets and the right roller brackets, the support brackets comprising bottom rods and middle rods vertically arranged on the middle portions of the bottom rods; the left roller brackets and the right roller brackets are hingedly connected to the upper ends of the middle rods of the inverted V-shaped support brackets on the sides close to the middle; Ear holes are arranged on both ends of the bottom rods, and two swing rods are symmetrically hingedly connected in the ear holes; the upper ends of the two swing rods are hingedly connected to the sliding blocks; A driving device is hingedly connected to the lower ends of the two swing rods through driving rods, the driving device being arranged for driving the lower ends of the two swing rods to simultaneously move toward the middle to drive the left rollers and the right rollers to simultaneously tilt upward in a V shape, or driving the lower ends of the two swing rods to simultaneously move toward both sides to drive the left rollers and the right rollers to tilt downward in an inverted V shape.

2. The belt conveyor mid-unloading device according to claim 1, characterized in that: The belt pressing device is replaced by an inverted V-shaped belt pressing bracket, rollers being arranged on the lower surface of the inverted V-shaped belt pressing bracket; the belt pressing driving device comprises bases arranged on both sides of the belt, rotating shafts mounted on the two bases, and the inverted V-shaped belt pressing bracket mounted on the rotating shafts; a power device is arranged for driving the rotating shafts to rotate to horizontally arrange or vertically downwardly arrange the inverted V-shaped belt pressing bracket.

3. The belt conveyor mid-unloading device according to claim 2, characterized in that: A belt pressing and cleaning device is arranged on the lower surface of the inverted V-shaped belt pressing bracket.

4. The belt conveyor mid-unload apparatus as claimed in claim 1, characterized in that: A discharging hopper is arranged on both sides of the adjustable angle rollers.

5. The belt conveyor mid-unload apparatus as claimed in claim 3, characterized in that: The belt pressing and cleaning device is a roller brush or a scraper.

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