A discharger

Abstract

The present invention discloses a discharger, which is mainly composed of an electro-hydraulic push rod, a straight plowshare, a curved plowshare, a conveyor belt, a plowshare bracket, an electro-hydraulic push rod bracket, an electro-hydraulic push rod base, a flat roller and a capstan. The straight plowshare is in a transversely inverted "V" shape, the inner side of the "V"-shaped straight plowshare is connected to the plowshare bracket, the outer lower part and the plowshare tip of the straight plowshare are inlaid with polymer material plates, the plowshare bracket is composed of channel steel to form a transversely inverted "V"-shaped frame structure, the "V"-shaped outer part of the plowshare bracket is consistent with the "V"-shaped inner part of the straight plowshare. The present invention can increase the speed of the belt conveyor, increase the output, and reduce the crushing rate. The material block coal meets the straight plowshare in the "streamlined diversion groove plate", and the block coal is "pushed" by the block coal behind in the "streamlined diversion groove plate" and diverted to both sides, and falls into the discharge chute on both sides of the belt conveyor. The block coal does not slide on the belt surface, so the belt surface is less worn.

Description

Technical Field

[0001] The present invention relates to a mechanical device, and particularly to a mechanical device suitable for discharging bulk materials such as lump coal, raw coal, gangue, ore, coke, etc. from a belt conveyor. Background Art

[0002] At present, the main forms of transporting bulk materials in blocks and enabling intermediate discharging are as follows: 1. Scraper conveyor with hydraulic flap; 1) Working principle: According to needs, electro-hydraulic flaps are arranged at intervals at the lower part of the scraper conveyor. To change the process, the electro-hydraulic flaps are opened, closed or partially opened to achieve all discharging, passing through or partial passing of the materials. It is mostly used as a bin loading equipment for coal bunkers and a batching equipment for multiple raw coal sizing screens. 2) Main advantages: It can discharge materials at multiple points, the operation of materials in the trough box causes little environmental pollution, and it is flexible and convenient to use. 3) Main disadvantages: The transportation distance is not easy to be too long (generally less than 100 m), the transportation power is relatively large (nearly 10 times that of a belt conveyor with the same transportation capacity), the cost is relatively high, the noise is relatively large, and the production cost is high.

[0003] 2. Belt conveyor with a tripper car; 1) Working principle: The head drum and the guiding drum on the tripper car form a "machine head" for discharging. The "machine head" travels on the track while discharging. 2) Main advantages: This form is often used for discharging to multiple coal bunkers or coal storage yards, and can achieve long-distance multi-point continuous discharging, and the working state is reliable. 3) Main disadvantages are as follows: ①. Compared with the plough-type tripper, the equipment investment of the tripper car is high. ②. When the belt speed of the belt conveyor is relatively fast, the tripper car is likely to move along with the belt conveyor, and a fixing device with the track must be added, so continuous discharging cannot be achieved. ③. The equipment installation space is relatively large, so the civil engineering investment is increased. ④. The space and structural strength of the belt conveyor trestle of "conventional design" cannot meet the needs of adding a tripper car. ⑤. The belt conveyor must be horizontally arranged.

[0004] 3. Belt conveyor with an "existing plough-type tripper"; 1) Working principle: The working principle of the existing plough-type tripper: (For the structure diagram of the existing plough-type tripper, see Figure 14 ) Coal moves uniformly with the belt of the belt conveyor. When it runs to the plough-type tripper, it collides with the "plough plate" of the plough-type tripper at an angle, and under the pushing of the coal behind, it runs along the inclined surface of the "plough plate" and falls into the chutes on both sides of the belt conveyor.

[0005] 2) The main advantages are as follows: low equipment investment, small installation space, light equipment weight, and flexible and convenient use. 3) The main disadvantages are as follows: ①. The plow head of the existing plow-type tripper collides with the coal in the middle position. When the running speed of the belt conveyor is relatively fast, the lump coal will be broken and splashed. This causes the plow head to wear out quickly, increases the breakage rate of lump coal, and has certain potential safety hazards. It also causes relatively large wear on the belt surface of the belt conveyor, shortens the service life of the belt, thus increasing the equipment maintenance workload and production cost. ②. It cannot be used on belt conveyors with a relatively large inclination angle. Generally, it is required that the angle of the belt conveyor is less than 12°. ③. The impact of the material on the plow-type tripper is relatively large, and the plow head requires special steel, otherwise it will seriously affect the service life of the plow head. ④. The lump coal is pushed obliquely outward along the side plate of the plow-type tripper to push the lump coal outside the belt to achieve the coal unloading process. However, the lump coal slides on the belt, which will inevitably cause scratches and wear on the belt surface. Especially for lump coal with a relatively large particle size and hard coke, ore, gravel, etc., it will cause greater scratches and wear on the belt surface, seriously affecting the service life of the belt, thus increasing the transportation cost and the workload of replacing the belt.

[0006] Analysis of the disadvantages of the existing plow-type tripper is as follows: ①. Restricting the speed of the belt conveyor. Since the lump coal on the belt conveyor has the same speed as the belt, when using a plow-type tripper, the lump coal will collide with the plow head of the plow-type tripper, resulting in conditions such as broken lump coal, large noise and dust, and affecting the service life of the plow head. Therefore, the belt speed of the belt conveyor for transporting lump coal is generally restricted within 2.0 m / s, thus restricting the conveying capacity of the belt conveyor. ②. Affecting the service life of the belt of the belt conveyor. When using a plow-type tripper to unload coal, the lump coal needs to slide across the belt surface along the inclined plane parallel to the plow head. The pressure acting on the belt surface at the edges of the lump coal is relatively large, which will inevitably cause relatively serious wear and affect the service life of the belt. For the unloading of ore, gangue, and coke, the impact on the service life of the belt will be greater. ③. The existing plow-type tripper has a short service life. When the existing plow-type tripper unloads materials, the materials all need to impact the plow head at a certain angle, and only by adjusting the angle of the plow head can the impact angle be changed, reducing the impact effect. Summary of the Invention

[0007] In order to make up for the deficiencies of the prior art and solve the problems that the "existing plow-type tripper" causes lump coal to be broken, with large noise and dust due to the collision and impact on lump coal, restricts the conveying capacity of the belt conveyor, and the plow head of the plow-type tripper and the belt of the conveyor have short service lives, a tripper is provided.

[0008] The technical solution adopted by the present invention to solve its technical problems can be:

[0009] A discharging device mainly consists of an electro-hydraulic push rod, a straight-plate plow head, a curved-plate plow head, a conveyor belt, a plow head support, an electro-hydraulic push rod support, an electro-hydraulic push rod base, a flat idler and a hinge seat. The straight-plate plow head is in the shape of an inverted "V". The inner side of the "V"-shaped straight-plate plow head is connected to the plow head support. High-molecular material plates are inlaid at the lower part outside the straight-plate plow head and at the plow head tip (which has good effect on cleaning materials and is wear-resistant). The plow head support consists of channel steels to form an inverted "V"-shaped frame structure. The outside of the "V" of the plow head support is the same as the inside of the "V" of the straight-plate plow head. The two sides on the left of the plow head support are respectively connected to the middle part of the electro-hydraulic push rod base by pins. The middle part of the plow head support is connected to one end of the electro-hydraulic push rod through a hinge seat. The middle part of the electro-hydraulic push rod is connected to the electro-hydraulic push rod support by a pin. The bottom of the electro-hydraulic push rod support is connected to the electro-hydraulic push rod base. The electro-hydraulic push rod base is a channel steel frame structure. The outside of the "V"-shaped straight-plate plow head is connected to the curved-plate plow head. The lower part of the curved-plate plow head is connected to the conveyor belt. The lower part of the conveyor belt is connected to the flat idler.

[0010] The technical solution adopted by the present invention to solve its technical problems can also be:

[0011] In the described discharging device, the plow head support mainly consists of a rear arm Ⅰ of the plow head support, an inclined arm Ⅰ of the plow head support, a front arm of the plow head support, a middle arm of the plow head support, an inclined arm Ⅱ of the plow head support, a main arm of the plow head support and a rear arm Ⅱ of the plow head support. The middle part of the main arm of the plow head support is connected to one end of the middle arm of the plow head support. The other end of the middle arm of the plow head support is connected to the middle part of the front arm of the plow head support. The main arm of the plow head support, the middle arm of the plow head support and the front arm of the plow head support are connected to form an "I" shape. The inclined arm Ⅰ of the plow head support and the inclined arm Ⅱ of the plow head support are respectively connected to both sides of the "I" shape. One end of the inclined arm Ⅰ of the plow head support is connected to one end of the front arm of the plow head support. The other end of the inclined arm Ⅰ of the plow head support is connected to one end of the rear arm Ⅰ of the plow head support. A round hole is arranged at the other end of the rear arm Ⅰ of the plow head support. One end of the front arm of the plow head support is connected to one end of the inclined arm Ⅱ of the plow head support. The other end of the inclined arm Ⅱ of the plow head support is connected to one end of the rear arm Ⅱ of the plow head support. A round hole is arranged at the other end of the rear arm Ⅱ of the plow head support.

[0012] The technical solution adopted by the present invention to solve its technical problems can also be:

[0013] In the described discharging device, the curved-plate plow head is an arrow-shaped multi-curved-plate plow head. The right part of the AⅠ - AⅠ section of the curved-plate plow head has a small downward-opening arc, and the left part has a large arc with an upward opening. The large upward-opening arc on the left part and the small downward-opening arc on the right part are smoothly transitioned. From the AⅠ - AⅠ section to the AⅡ - AⅡ section of the curved-plate plow head, the small downward-opening arc on the right part gradually becomes a large arc, and the large upward-opening arc on the left part gradually becomes a small arc. The two arcs of the gradually increasing large arc and the gradually decreasing small arc are smoothly transitioned. From the AⅡ - AⅡ section to the AⅢ - AⅢ section of the curved-plate plow head, the small downward-opening arc on the right part gradually becomes an even larger arc, and the large upward-opening arc on the left part gradually becomes an even smaller arc. The two arcs of the gradually increasing larger arc and the gradually decreasing even smaller arc are smoothly transitioned.

[0014] The technical solution adopted by the present invention to solve its technical problems may also be:

[0015] For the described unloader, the curved plowshare is an arrow-shaped multi-curved plowshare. The cross-section of the curved plowshare at BⅠ-BⅠ is an arc opening downward. From the cross-section of the curved plowshare at BⅠ-BⅠ to the cross-section at BⅡ-BⅡ, the cross-section at BⅠ-BⅠ is an arc opening downward. On both sides, it first extends from the bottom, then rises, and then descends, forming two symmetrical arcs. The two symmetrical arcs formed and the arc opening downward of the cross-section at BⅠ-BⅠ are smoothly transitioned respectively; from the cross-section of the curved plowshare at BⅡ-BⅡ to the cross-section at BⅢ-BⅢ, the arcs gradually become smaller towards both sides.

[0016] The beneficial effects of the present invention are:

[0017] 1. The present invention can increase the speed of the belt conveyor, improve the output, reduce the breakage rate, and reduce the noise. The belt of the belt conveyor at the lower part of the present invention is unfolded and in a horizontal state, and the belt speed is generally controlled at 2.5 m / s. The lower part of the curved plowshare is arranged closely against the belt surface, and the tip of the plowshare is inlaid with a polymer material with good "cleaning" effect (to prevent scratching the belt surface). The "head curvature of the curved plowshare is relatively large", which can shovel up the lump coal of the material, and then shovel the lump coal into the "streamlined diversion groove plate" formed by the present invention by inertia, and shovel the material easily.

[0018] 2. When the lump coal of the material encounters the straight plowshare in the "streamlined diversion groove plate", the lump coal is "pushed" by the lump coal behind in the "streamlined diversion groove plate" and is diverted to both sides, falling into the discharge chutes on both sides of the belt conveyor. The lump coal does not slide on the belt surface, so the wear on the belt surface is small. Description of the Drawings

[0019] Figure 1 It is the front view of the present invention;

[0020] Figure 2 It is the top view of the present invention;

[0021] Figure 3 It is the left view of the present invention;

[0022] Figure 4 It is a schematic diagram of the unloader rising;

[0023] Figure 5 It is a schematic diagram of the plowshare support;

[0024] Figure 6 It is the position diagram of the cross-sections AⅠ-AⅠ, AⅡ-AⅡ, and AⅢ-AⅢ of the curved plowshare;

[0025] Figure 7 It is the cross-sectional view of the curved plowshare at AⅠ-AⅠ;

[0026] Figure 8 Cross-sectional view of the curved plowshare AⅡ - AⅡ

[0027] Figure 9 Cross-sectional view of the curved plowshare AⅢ - AⅢ

[0028] Figure 10 Position diagram of the cross-sections BⅠ - BⅠ, BⅡ - BⅡ, and BⅢ - BⅢ of the curved plowshare

[0029] Figure 11 Cross-sectional view of the curved plowshare BⅠ - BⅠ

[0030] Figure 12 Cross-sectional view of the curved plowshare BⅡ - BⅡ

[0031] Figure 13 Cross-sectional view of the curved plowshare BⅢ - BⅢ

[0032] Figure 14 Schematic diagram of the existing plow-type discharger Specific implementation mode

[0033] Figure 1 In -4, a discharger mainly consists of an electro - hydraulic push rod 1, a straight plowshare 2, a curved plowshare 3, a conveyor belt 4, a plowshare support 5, an electro - hydraulic push rod support 6, an electro - hydraulic push rod base 7, a flat idler 8, and a hinge seat 9. The straight plowshare 2 is in a horizontally - inverted "V" shape. The inner side of the "V" - shaped straight plowshare 2 is connected to the plowshare support 5. High - molecular material plates are inlaid on the outer lower part and the tip of the straight plowshare 2. "The effect of cleaning materials is good and it is wear - resistant". The plowshare support 5 is composed of channel steel to form a horizontally - inverted "V" - shaped frame structure. The outer side of the "V" shape of the plowshare support 5 is consistent with the inner side of the "V" shape of the straight plowshare 2. The two sides on the left of the plowshare support 5 are respectively connected to the middle part of the electro - hydraulic push rod base 7 by pins. The middle part of the plowshare support 5 is connected to one end of the electro - hydraulic push rod 1 through the hinge seat 9. The middle part of the electro - hydraulic push rod 1 is connected to the electro - hydraulic push rod support 6 by a pin. The bottom of the electro - hydraulic push rod support 6 is connected to the electro - hydraulic push rod base 7. The electro - hydraulic push rod base 7 is a channel - steel frame structure. The outer side of the "V" - shaped straight plowshare 2 is connected to the curved plowshare 3. The lower part of the curved plowshare 3 is connected to the conveyor belt 4. The lower part of the conveyor belt 4 is connected to the flat idler 8.

[0034] Figure 5In the unloader, the plowshare bracket 5 is mainly composed of a plowshare bracket rear arm Ⅰ5-1, a plowshare bracket oblique arm Ⅰ5-2, a plowshare bracket front arm 5-3, a plowshare bracket middle arm 5-4, a plowshare bracket oblique arm Ⅱ5-5, a plowshare bracket main arm 5-6 and a plowshare bracket rear arm Ⅱ5-7. The middle part of the plowshare bracket main arm 5-6 is connected to one end of the plowshare bracket middle arm 5-4, and the other end of the plowshare bracket middle arm 5-4 is connected to the middle part of the plowshare bracket front arm 5-3. The plowshare bracket main arm 5-6, the plowshare bracket middle arm 5-4 and the plowshare bracket front arm 5-3 are connected to form a connecting group. It forms an "I" shape, and the plowshare bracket oblique arm Ⅰ5-2 and the plowshare bracket oblique arm Ⅱ5-5 are respectively connected to the two ends of the "I" shape, one end of the plowshare bracket oblique arm Ⅰ5-2 is connected to one end of the plowshare bracket front arm 5-3, and the other end of the plowshare bracket oblique arm Ⅰ5-2 is connected to one end of the plowshare bracket rear arm Ⅰ5-1, and a round hole is arranged on the other end of the plowshare bracket rear arm Ⅰ5-1, and the other end of the plowshare bracket front arm 5-3 is connected to one end of the plowshare bracket oblique arm Ⅱ5-5, and the other end of the plowshare bracket oblique arm Ⅱ5-5 is connected to one end of the plowshare bracket rear arm Ⅱ5-7, and a round hole is arranged on the other end of the plowshare bracket rear arm Ⅱ5-7.

[0035] Figure 6 - Figure 9 In the unloader described in the invention, the curved plowshare 3 is an arrow-shaped multi-curved plowshare, and the curved plowshare 3AⅠ-AⅠ section has a small arc with a downward opening on the right, and a large arc with an upward opening on the left, and a small arc with a downward opening on the right, and a smooth transition occurs. From the AⅠ-AⅠ section to the AⅡ-AⅡ section of the curved plowshare 3AⅠ-AⅠ section, the small arc with a downward opening on the right gradually becomes a larger arc, and the large arc with an upward opening on the left gradually becomes a smaller arc, and the two arcs of the gradually larger arc and the gradually smaller arc have a smooth transition. From the AⅡ-AⅡ section to the AⅢ-AⅢ section of the curved plowshare 3AⅡ-AⅡ section, the small arc with a downward opening on the right gradually changes to a larger arc, and the large arc with an upward opening on the left gradually changes to a smaller arc, and the two arcs of the gradually changing larger arc and the gradually changing smaller arc have a smooth transition.

[0036] Figure 10 -13, a discharger described in the invention, wherein the curved plowshare 3 is an arrow-shaped multi-curved plowshare, the cross section of the curved plowshare 3BⅠ-BⅠ is an arc opening downward, the curved plowshare 3BⅠ-BⅠ cross section to the BⅡ-BⅡ cross section, the BⅠ-BⅠ cross section is an arc opening downward, both sides extend from the bottom first and then rise and then downward, forming two symmetrical arcs, the formed two symmetrical arcs and the arc opening downward of the BⅠ-BⅠ cross section have smooth transitions; the arc gradually becomes smaller towards both sides from the BⅡ-BⅡ cross section to the BⅢ-BⅢ cross section of the curved plowshare 3BⅡ-BⅡ cross section.

[0037] Working principle:

[0038] During the operation of the belt of the belt conveyor at the lower part of the present invention, it is in a horizontal state, and the belt speed is generally lower than 2.5 m / s. During operation, the curved plow head is arranged closely against the belt surface, and a polymer material plate with better "cleaning" effect (to prevent scratching the belt surface) is inlaid at the tip of the plow head. The "head arc design" of the curved plow head can shovel up the material coal blocks, and then shovel the lump coal into the "streamlined diversion groove plate" formed by the present invention by inertia; when the lump coal encounters the straight plow head 2 in the "streamlined diversion groove plate" formed by the present invention, the lump coal in front is "pushed" by the lump coal behind and is diverted to both sides, and finally falls into the discharge chutes on both sides of the belt conveyor. The lump coal does not slide on the belt surface, so the belt surface will not be worn. When the present invention is not working, it is lifted by the electro-hydraulic push rod 1 and leaves the conveyor belt 4.

Claims

1. A discharging device, mainly composed of an electro-hydraulic push rod (1), a straight-plate plow head (2), a curved-plate plow head (3), a conveyor belt (4), a plow head support (5), an electro-hydraulic push rod support (6), an electro-hydraulic push rod base (7), a flat idler (8) and a hinge seat (9). It is characterized in that: The straight-plate plow head (2) is in a horizontally inverted "V" shape. The inner side of the "V"-shaped straight-plate plow head (2) is connected to the plow head support (5). High-molecular material plates are inlaid on the lower part of the outer side and the tip of the straight-plate plow head (2). The plow head support (5) is composed of channel steel to form a horizontally inverted "V"-shaped frame structure. The outer side of the "V" shape of the plow head support (5) is consistent with the inner side of the "V" shape of the straight-plate plow head (2). The two sides on the left of the plow head support (5) are respectively pin-connected to the middle part of the electro-hydraulic push rod base (7). The middle part of the plow head support (5) is connected to one end of the electro-hydraulic push rod (1) through the hinge seat (9). The middle part of the electro-hydraulic push rod (1) is pin-connected to the electro-hydraulic push rod support (6). The bottom of the electro-hydraulic push rod support (6) is connected to the electro-hydraulic push rod base (7). The electro-hydraulic push rod base (7) is a channel steel frame structure. The outer side of the "V"-shaped straight-plate plow head (2) is connected to the curved-plate plow head (3). The lower part of the curved-plate plow head (3) is connected to the conveyor belt (4). The lower part of the conveyor belt (4) is connected to the flat idler (8). The plow head support (5) is mainly composed of a rear arm I of the plow head support (5-1), an inclined arm I of the plow head support (5-2), a front arm of the plow head support (5-3), a middle arm of the plow head support (5-4), an inclined arm II of the plow head support (5-5), a main arm of the plow head support (5-6) and a rear arm II of the plow head support (5-7). The middle part of the main arm (5-6) of the plow head support is connected to one end of the middle arm (5-4) of the plow head support. The other end of the middle arm (5-4) of the plow head support is connected to the middle part of the front arm (5-3) of the plow head support. The main arm (5-6) of the plow head support, the middle arm (5-4) of the plow head support and the front arm (5-3) of the plow head support are connected to form an "I" shape. The inclined arm I (5-2) of the plow head support and the inclined arm II (5-5) of the plow head support are respectively connected to both sides of the "I" shape. One end of the inclined arm I (5-2) of the plow head support is connected to one end of the front arm (5-3) of the plow head support. The other end of the inclined arm I (5-2) of the plow head support is connected to one end of the rear arm I (5-1) of the plow head support. A round hole is provided at the other end of the rear arm I (5-1) of the plow head support. One end of the front arm (5-3) of the plow head support is connected to one end of the inclined arm II (5-5) of the plow head support. The other end of the inclined arm II (5-5) of the plow head support is connected to one end of the rear arm II (5-7) of the plow head support. A round hole is provided at the other end of the rear arm II (5-7) of the plow head support. The described curved plowshare (3) is an arrow-shaped multi-curved plowshare. In the right part of the AⅠ-AⅠ section of the curved plowshare (3), the arc is small and the opening faces downward, while in the left part, the arc is large and the opening faces upward. The large arc with the upward opening in the left part and the small arc with the downward opening in the right part are smoothly transitioned. From the AⅠ-AⅠ section to the AⅡ-AⅡ section of the curved plowshare (3), the small arc with the downward opening in the right part gradually becomes a larger arc, and the large arc with the upward opening in the left part gradually becomes a smaller arc. The two arcs, one gradually becoming larger and the other gradually becoming smaller, are smoothly transitioned. From the AⅡ-AⅡ section to the AⅢ-AⅢ section of the curved plowshare (3), the small arc with the downward opening in the right part gradually becomes an even larger arc, and the large arc with the upward opening in the left part gradually becomes an even smaller arc. The two arcs, one gradually becoming even larger and the other gradually becoming even smaller, are smoothly transitioned. The AⅠ-AⅠ section is the middle position section of the curved plowshare (3) along the discharge direction. The AⅡ-AⅡ section is the section between the middle and the edge of the curved plowshare (3) along the discharge direction. The AⅢ-AⅢ section is the edge position section of the curved plowshare (3) along the discharge direction.

2. A discharger according to claim 1, characterized in that: The described curved plowshare (3) is an arrow-shaped multi-curved plowshare. The BⅠ-BⅠ section of the curved plowshare (3) is an arc with the opening facing downward. From the BⅠ-BⅠ section to the BⅡ-BⅡ section of the curved plowshare (3), the BⅠ-BⅠ section is an arc with the opening facing downward. On both sides, it first extends from the bottom, then rises, and then descends, forming two symmetric arcs. The two symmetric arcs formed and the arc with the downward opening in the BⅠ-BⅠ section are respectively smoothly transitioned. From the BⅡ-BⅡ section to the BⅢ-BⅢ section of the curved plowshare (3), the arc gradually becomes smaller towards both sides. The BⅠ-BⅠ section is the plow tip position section along the direction perpendicular to the discharge direction. The BⅡ-BⅡ section is the middle position section along the direction perpendicular to the discharge direction. The BⅢ-BⅢ section is the plow tail position section along the direction perpendicular to the discharge direction.

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