Coal bunker discharging chute protection device and system

Abstract

The utility model discloses a coal bunker blanking chute protection device and a coal bunker blanking chute protection system, relates to the technical field of coal unloading, and mainly aims to remove large coal in a blanking chute in time. According to the main technical scheme, the coal bunker discharging chute protection device is characterized in that two cleaning openings are sequentially formed in the side wall of a chute in the axial direction, the upper edges of the cleaning openings are hinged to a cover plate, and a through hole is formed in the portion, above the cleaning openings, of the side wall of the chute; each blocking mechanism is correspondingly arranged at one cleaning opening, the first screen plate and the second screen plate are perpendicularly intersected, adjacent side edges of the first screen plate and the second screen plate are fixedly connected to the pivot, the pivot is rotatably connected to the lower edge of the cleaning opening, the first screen plate is located above the second screen plate, and the side edge, away from the second screen plate, of the first screen plate is a first side edge; the end of the first side edge is fixedly connected to one end of an arc-shaped rod, the other end of the arc-shaped rod penetrates through the through hole, the curvature radius of the arc-shaped rod is equal to the length of the first net plate, and the other end of the arc-shaped rod is connected to a driving mechanism.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal material unloading technical field especially relates to a coal bunker unloading chute protection device and system. BACKGROUND

[0002] Chute refers to the ground from high to low to transport things of the groove, the inner surface is smooth, things can automatically slide down. It is mainly applied to small open pit mine, in large, medium and small open pit mine, chute is often connected with the shaft joint application, can be set in the mining range, also can be set in its outside, spare coal bunker refers to the device for the time or temporary storage of coal, shape and size differ greatly according to the need, when unloading, chute is often used.

[0003] The coal bunker chute is below the belt conveying mechanism or other equipment, and the large block coal in the coal bunker falls along the chute without being crushed, which can easily damage the belt conveying mechanism or other equipment below. UTILITY MODEL CONTENT

[0004] Therefore, the utility model provides a coal bunker unloading chute protection device and system, which can timely remove the large block coal in the unloading chute.

[0005] To achieve the above purpose, the utility model mainly provides the following technical scheme:

[0006] On the one hand, the utility model provides a coal bunker unloading chute protection device, which comprises a chute and a blocking part.

[0007] The sidewall of the chute is provided with two cleaning ports in sequence along the axial direction, the upper edge of the cleaning port is hinged to a cover plate, and the sidewall of the chute above the cleaning port is provided with a through hole.

[0008] The blocking part comprises two blocking mechanisms, each blocking mechanism is arranged in one of the cleaning ports, each blocking mechanism comprises a first mesh plate and a second mesh plate, the first mesh plate and the second mesh plate are perpendicular to each other, the adjacent side edges of the first mesh plate and the second mesh plate are fixedly connected to a pivot, the pivot is rotatably connected to the lower edge of the cleaning port, the first mesh plate is located above the second mesh plate, the side edge of the first mesh plate away from the second mesh plate is a first side edge, the end of the first side edge is fixedly connected to one end of an arc-shaped rod, the other end of the arc-shaped rod penetrates through the through hole, the curvature radius of the arc-shaped rod is equal to the length of the first mesh plate, and the other end of the arc-shaped rod is connected to a driving mechanism for driving the arc-shaped rod to reciprocatingly rotate.

[0009] The purpose of the utility model and the technical problems thereof can also be further realized by the following technical measures.

[0010] Optionally, the number of the arc-shaped rods is two, two through holes are symmetrically arranged on the chute side wall above each of the cleaning ports, one end of each of the two arc-shaped rods is fixedly connected to the opposite end of the first side, the other end of each of the arc-shaped rods penetrates through one of the through holes, and the other end of each of the two arc-shaped rods is connected to the opposite end of a bearing rod, and the bearing rod is connected to the driving mechanism.

[0011] Optionally, the middle part of the bearing rod is hingedly connected to one end of a connecting rod, and the other end of the connecting rod is hingedly connected to the edge of the driving disc.

[0012] Optionally, the inner side wall of the chute is respectively provided with an arc-shaped guide groove, and the arc-shaped rod is slidingly connected to the arc-shaped guide groove.

[0013] In another aspect, the utility model provides a kind of coal bunker discharge chute protection system, and the system comprises:

[0014] Coal bunker and two aforementioned coal bunker discharge chute protection devices, the lower end of the coal bunker is respectively connected to two chutes, and the upper end of two chutes is respectively provided with a plug valve.

[0015] Optionally, the two chutes are symmetric about the central axis of the coal bunker, and the two chutes are respectively arranged obliquely, and the cleaning port is located on the lower side wall of the chute.

[0016] By the above technical solution, the utility model at least has the following advantages:

[0017] The two blocking mechanisms are sequentially arranged along the axial direction of the chute and are respectively an upper blocking mechanism and a lower blocking mechanism; the two cleaning ports are sequentially arranged along the axial direction of the chute and are respectively an upper cleaning port and a lower cleaning port.

[0018] When the chute is in normal operation, the locking mechanism at the lower end of the cover plate is clamped to the lower edge of the cleaning port, the arc-shaped rod of the blocking mechanism is located in the chute as a whole, the first mesh plate overlaps the radial cross section of the chute, the second mesh plate is attached to the inner side of the chute below the cleaning port, and the first mesh plate and the second mesh plate maintain a state of vertical intersection, so that the first mesh plate can stably overlap the radial cross section of the chute and block the falling of large pieces of coal.

[0019] When there are large pieces of coal on the upper surface of the first mesh plate of the upper blocking mechanism in the chute that need to be cleaned, the locking mechanism at the lower end of the cover plate corresponding to the upper cleaning port can be manually opened, and then the driving mechanism corresponding to the upper blocking mechanism is started to drive the arc-shaped rod of the upper blocking mechanism to rotate forward and pull out of the chute, so that the first mesh plate is turned over to the upper cleaning port and drives the large pieces of coal to move out of the upper cleaning port, and at this time, the second mesh plate gradually overlaps the radial cross section of the chute, and if there are still large pieces of coal in the chute, they will be intercepted by the second mesh plate.

[0020] At this time, the driving mechanism corresponding to the upper blocking mechanism is started again, the arc-shaped rod of the upper blocking mechanism is driven to rotate reversely, and enters the chute, the first mesh plate is overlapped on the radial section of the chute again, and the second mesh plate is attached to the inner side of the chute below the cleaning port again, and the large lump coal on the second mesh plate falls on the first mesh plate of the lower blocking mechanism;

[0021] On this basis, the lock catch mechanism at the lower end of the cover plate corresponding to the lower cleaning port is opened artificially, the driving mechanism corresponding to the lower blocking mechanism is started, the arc-shaped rod of the lower blocking mechanism is driven to rotate forwardly, and the chute is pulled out, the first mesh plate is turned over downward to the lower cleaning port, and the large lump coal is pulled out of the lower cleaning port, and at this time, the second mesh plate is gradually overlapped on the radial section of the chute;

[0022] In the above process, the size of the qualified small lump coal is smaller than the mesh hole diameter of the first mesh plate and the second mesh plate, the first mesh plate and the second mesh plate only intercept the large lump coal which cannot pass through the mesh hole, and the large lump coal is cleaned out of the chute in time, so that the equipment below the coal bunker chute is protected, and the working efficiency of the chute is improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 A structural schematic view of a coal bunker discharging chute protection system is provided for the embodiment of the utility model;

[0024] Figure 2 It is a perspective view of the blocking mechanism;

[0025] Figure 3 It is Figure 1 It is a view of A-A in the middle;

[0026] Figure 4 It is Figure 1 It is an enlarged view of B part in the middle;

[0027] Figure 5 It is Figure 2 It is an enlarged view of C part in the middle;

[0028] Figure 6 It is Figure 2 It is an enlarged view of D part in the middle.

[0029] The reference signs in the drawings of the specification include: chute 1, cover plate 2, through hole 3, first mesh plate 4, second mesh plate 5, pivot 6, arc-shaped rod 7, bearing rod 8, connecting rod 9, driving disc 10, arc-shaped guide groove 11, coal bunker 12, plug valve 13, lock catch mechanism 14. DETAILED DESCRIPTION

[0030] For further illustrating the technical means and effects taken by the utility model to achieve the predetermined utility model purposes, the following will combine with the drawings and the preferred embodiments to specifically explain the specific implementation manners, structures, features and effects according to the utility model application as follows.In the following description, different "an embodiment" or "embodiments" do not necessarily refer to the same embodiment.In addition, the specific features, structures or characteristics in one or more embodiments can be combined in any suitable form.

[0031] The utility model will be further explained in detail in combination with the drawings and embodiments.

[0032] As Figure 1 , Figure 3 and Figure 4 indicate, in one aspect, an embodiment of the utility model provides a coal bunker discharge chute protection device, it includes: chute 1 and blocking part;

[0033] The side wall of chute 1 is sequentially provided with two cleaning ports along the axial direction, the upper edge of the cleaning port is hinged to the cover plate 2, and the side wall of the chute 1 above the cleaning port is provided with a through hole 3;

[0034] The blocking part includes two blocking mechanisms, each blocking mechanism is correspondingly arranged in one of the cleaning ports, each blocking mechanism includes a first mesh plate 4 and a second mesh plate 5, the first mesh plate 4 and the second mesh plate 5 are perpendicular to each other, the adjacent side edges of the first mesh plate 4 and the second mesh plate 5 are fixedly connected to the pivot 6, the pivot 6 is rotatably connected to the lower edge of the cleaning port, the first mesh plate 4 is located above the second mesh plate 5, the side edge of the first mesh plate 4 away from the second mesh plate 5 is a first side edge, the end of the first side edge is fixedly connected to one end of the arc-shaped rod 7, the other end of the arc-shaped rod 7 penetrates the through hole 3, the curvature radius of the arc-shaped rod 7 is equal to the length of the first mesh plate 4, and the other end of the arc-shaped rod 7 is connected to a driving mechanism for driving the arc-shaped rod 7 to reciprocatingly rotate.

[0035] The working process of the coal bunker discharge chute protection device is as follows:

[0036] The two blocking mechanisms are sequentially arranged along the axial direction of the chute 1 and are respectively an upper blocking mechanism and a lower blocking mechanism;The two cleaning ports are sequentially arranged along the axial direction of the chute 1 and are respectively an upper cleaning port and a lower cleaning port;

[0037] When the chute 1 is in normal operation, the locking mechanism 14 at the lower end of the cover plate 2 is clamped to the lower edge of the cleaning port, the arc-shaped rod 7 of the blocking mechanism is located in the chute 1 as a whole, the first screen plate 4 coincides with the radial section of the chute 1, the second screen plate 5 is attached to the inner side of the chute 1 below the cleaning port, and the first screen plate 4 and the second screen plate 5 keep a vertical intersecting state, so that the first screen plate 4 can be stably coincided with the radial section of the chute 1 and block the large coal from falling.

[0038] When there is large coal on the upper surface of the first screen plate 4 of the upper blocking mechanism in the chute 1, the locking mechanism 14 at the lower end of the cover plate 2 corresponding to the upper cleaning port is manually opened, and then the driving mechanism corresponding to the upper blocking mechanism is started to drive the arc-shaped rod 7 of the upper blocking mechanism to rotate forward and pull out of the chute 1, so that the first screen plate 4 is turned up to the upper cleaning port and the large coal is brought out of the upper cleaning port, and at this time, the second screen plate 5 gradually coincides with the radial section of the chute 1, and if there is still large coal in the chute 1, it will be intercepted by the second screen plate 5.

[0039] At this time, the driving mechanism corresponding to the upper blocking mechanism is started again to drive the arc-shaped rod 7 of the upper blocking mechanism to rotate reversely and enter the chute 1, so that the first screen plate 4 is coincided with the radial section of the chute 1 again, the second screen plate 5 is attached to the inner side of the chute 1 below the cleaning port again, and the large coal on the second screen plate 5 falls onto the first screen plate 4 of the lower blocking mechanism.

[0040] On this basis, the locking mechanism 14 at the lower end of the cover plate 2 corresponding to the lower cleaning port is manually opened, and the driving mechanism corresponding to the lower blocking mechanism is started to drive the arc-shaped rod 7 of the lower blocking mechanism to rotate forward and pull out of the chute 1, so that the first screen plate 4 is turned down to the lower cleaning port and the large coal is brought out of the lower cleaning port, and at this time, the second screen plate 5 gradually coincides with the radial section of the chute 1.

[0041] In the above process, the qualified small coal has a size smaller than the mesh diameter of the first screen plate 4 and the second screen plate 5, the first screen plate 4 and the second screen plate 5 only intercept the large coal that cannot pass through the mesh, and the large coal is timely cleaned out of the chute 1, so that the equipment below the chute 1 of the coal bunker 12 is protected and the working efficiency of the chute 1 is improved.

[0042] Specifically, the size of the through hole 3 is slightly larger than the radial size of the arc-shaped rod 7, and the curvature radius of the arc-shaped rod 7 is equal to the length of the first screen plate 4, that is, the center of the curvature of the arc-shaped rod 7 coincides with the pivot 6, so that the arc-shaped rod 7 can reciprocatingly rotate with the pivot 6 as the center, and in the above process, a large amount of coal powder is prevented from leaking from the periphery of the through hole 3.

[0043] Specifically, the pivot 6 is rotationally connected to the opposite side wall of the chute 1 below the lower edge of the cleaning port.

[0044] Specifically, the lock catch mechanism 14 includes a handle and a lock tongue, the lower side of the cover plate is provided with a lock installation hole, the handle is located on the outer side of the cover plate, one end of the handle penetrates through the lock installation hole and is fixedly connected to the lock tongue, and an operator drives the lock tongue to rotate through the handle so that the lock tongue is clamped in the inner side of the lower edge of the cleaning port.

[0045] As shown in Figure 1 and Figure 2 in the specific embodiment, the number of the arc-shaped rods 7 is two, two through holes 3 are symmetrically arranged on the side wall of the chute 1 above each cleaning port, one end of each of the two arc-shaped rods 7 is fixedly connected to the opposite end of the first side edge, the other end of each of the two arc-shaped rods 7 penetrates through one of the through holes 3, and the other end of each of the two arc-shaped rods 7 is connected to the opposite end of a bearing rod 8, and the bearing rod 8 is connected to the driving mechanism.

[0046] In the embodiment, specifically, the opposite ends of the bearing rod 8 are respectively connected to the two arc-shaped rods 7, and in the process of driving the bearing rod 8 to rotate by the driving mechanism, the bearing rod 8 pulls the opposite ends of the first side edge through the two arc-shaped rods 7, so that the first mesh plate 4 is more uniformly stressed and more stably rotated.

[0047] As shown in Figure 1 , Figure 2 , Figure 5 and Figure 6 in the specific embodiment, the middle part of the bearing rod 8 is hingedly connected to one end of a connecting rod 9, and the other end of the connecting rod 9 is hingedly connected to the edge of a driving disc 10.

[0048] In the embodiment, specifically, a driving motor is further included, the driving motor is installed below the cleaning port, a output shaft of the driving motor is connected to the center of the driving disc 10 through a flat key, the driving disc 10 rotates to drive the connecting rod 9 to reciprocate, and the connecting rod 9 drives the arc-shaped rod 7 to reciprocate around the pivot 6, so that the mesh plate is flipped by 90°.

[0049] As shown in Figure 1 in the specific embodiment, the inner side wall of the chute 1 is respectively provided with an arc-shaped guide groove 11, and the arc-shaped rod 7 is slidingly connected to the arc-shaped guide groove 11.

[0050] In the embodiment, specifically, the center of curvature of the arc-shaped guide groove 11 also coincides with the pivot 6, so that the circumference of the arc-shaped guide groove 11 coincides with the circumference of the arc-shaped rod 7, and the arc-shaped guide groove 11 can constrain the rotation track of the arc-shaped rod 7.

[0051] As shown in Figure 1 on the other hand, another embodiment of the utility model provides a coal bunker discharging chute protection system, which comprises:

[0052] The coal bunker 12 and the two aforementioned coal bunker 12 discharge chutes 1 are protected by protective devices. The lower end of the coal bunker 12 is connected to the two chutes 1 respectively, and the upper end of the two chutes 1 is respectively equipped with a gate valve 13.

[0053] In this embodiment, specifically, during the daily operation of the coal bunker 12, one of the two chutes 1 is on standby and the other is in use. The gate valve 13 at the upper end of the operating chute 1 is open, and the gate valve 13 at the upper end of the standby chute 1 is closed.

[0054] When large pieces of coal get stuck on the screen plate in the operating chute 1, switch chute 1. After the slide valve 13 at the upper end of the coal stuck chute 1 is closed, the large pieces of coal on the screen plate are discharged from the cleaning port for chute 1 to be reused. The specific cleaning process is as described above.

[0055] like Figure 1 As shown, in a specific embodiment, the two chutes 1 are symmetrical about the central axis of the coal bunker 12, and the two chutes 1 are respectively inclined. The cleaning port is located on the lower side wall of the chutes 1.

[0056] In this embodiment, specifically, the two chutes 1 are symmetrical about the central axis of the coal bunker 12. When cleaning large pieces of coal in the two chutes 1, the same operating procedures can be referred to, which facilitates the training of operators and daily operations.

[0057] The cleaning opening is located on the lower side wall of the inclined chute 1. When cleaning large pieces of coal, the locking mechanism 14 at the lower end of the cover plate 2 is opened, and the cover plate 2 will naturally droop down, and the cleaning opening will naturally open, ensuring the convenience of cleaning large pieces of coal.

[0058] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A protective device for a coal bunker unloading chute, characterized in that, include: A chute, wherein two cleaning ports are sequentially provided on the sidewall of the chute along the axial direction, the upper edge of the cleaning port is hinged to the cover plate, and a through hole is provided on the sidewall of the chute above the cleaning port; The blocking section includes two blocking mechanisms, each of which is correspondingly disposed at one of the cleaning ports. Each blocking mechanism includes a first mesh plate and a second mesh plate, which intersect perpendicularly. The adjacent sides of the first and second mesh plates are fixedly connected to a pivot, which is rotatably connected to the lower edge of the cleaning port. The first mesh plate is located above the second mesh plate, and the side of the first mesh plate away from the second mesh plate is called the first side. The end of the first side is fixedly connected to one end of an arc-shaped rod, and the other end of the arc-shaped rod passes through the through hole. The radius of curvature of the arc-shaped rod is equal to the length of the first mesh plate, and the other end of the arc-shaped rod is connected to a driving mechanism for driving the arc-shaped rod to reciprocate.

2. The protective device for the coal bunker unloading chute according to claim 1, characterized in that, The number of arc-shaped rods is two. Each of the cleaning ports has two through holes symmetrically provided on the side wall of the chute. One end of each of the two arc-shaped rods is fixedly connected to the opposite end of the first side. The other end of each arc-shaped rod passes through one of the through holes. The other ends of the two arc-shaped rods are respectively connected to the opposite end of the bearing rod. The bearing rod is connected to the driving mechanism.

3. The protective device for the coal bunker unloading chute according to claim 2, characterized in that, The middle part of the bearing rod is hinged to one end of the connecting rod, and the other end of the connecting rod is hinged to the edge of the drive disk.

4. The protective device for the coal bunker unloading chute according to claim 2, characterized in that, The inner sidewalls of the chute are respectively provided with arc-shaped guide grooves, and the arc-shaped rod is slidably connected to the arc-shaped guide grooves.

5. A protective system for a coal bunker unloading chute, characterized in that, include: The coal bunker and the protective device for the coal bunker discharge chute according to any one of claims 1 to 4, wherein the lower end of the coal bunker is respectively connected to the two chutes, and the upper end of the two chutes is respectively equipped with a gate valve.

6. The coal bunker unloading chute protection system according to claim 5, characterized in that, The two chutes are symmetrical about the central axis of the coal bunker, and the two chutes are respectively inclined. The cleaning port is located on the lower side wall of the chutes.

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