Separated coal bunker with material blocking detection mechanism

Abstract

The utility model relates to the technical field of coal bunker blanking detection, and discloses a separated coal bunker with a material blocking detection mechanism, which comprises a coal bunker, a bidirectional hydraulic slide plate gate is arranged at the bottom of the coal bunker, a transition joint is arranged below the bidirectional hydraulic slide plate gate, the interior of the transition joint is equally divided into two blanking cavities, and the blanking cavities are communicated with the bidirectional hydraulic slide plate gate. The detection mechanism comprises a supporting frame elastically arranged in the discharging cavity, a trigger rod is elastically arranged on the supporting frame, the bottom of the trigger rod makes contact with a transmission rod elastically arranged on the supporting frame, and the end faces, making contact with the transmission rod, of the trigger rod are inclined faces with the same slope. The transmission rod is arranged in the radial direction of the transition joint, and one end of the transmission rod movably penetrates out of the interior of the transition joint and then is located on one side of a switch of an early warning device arranged outside the transition joint. According to the utility model, the blanking condition of the coal bunker can be observed in real time, the condition that the two branch bins of the coal bunker are blocked and unblocked at the same time and are difficult to judge is avoided, and the production benefit of a power plant is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of coal bunker material unloading detection, in particular to a sub-bin coal bunker with a material blocking detection mechanism. Background Art

[0002] Since the combustion capacity and price difference of different coal qualities are quite different, in order to meet the requirements of power market regulation, ensure the fundamental interests of power plants, and enable the units to have deep peak-shaving capabilities to meet the power demand in different periods, the existing coal bunkers are usually renovated into separate bunkers, so that inferior coal or a mixture of superior and inferior coal can be used for production during low or flat periods of power consumption, and high-quality coal can be used for production during peak periods of power consumption. However, the coal bunkers that have been renovated into separate bunkers have the following problems when unloading: when discharging inferior coal and high-quality coal at the same time, due to the blockage of one of the coal bunkers, coal can still be transported and discharged from the bottom of the coal bunker. At this time, it is impossible to determine whether the two sub-bins inside the coal bunker are working normally, or which specific sub-bin has a blockage problem. This brings great inconvenience to the use of the sub-bins, affecting the production efficiency of the power plant. Utility Model Content

[0003] The utility model aims to provide a coal bunker with a blocking detection mechanism, which can observe the unloading situation of the coal bunker in real time, avoid the situation that one of the two bunkers of the coal bunker is blocked and the other is unblocked when unloading at the same time, and ensure the production efficiency of the power plant.

[0004] The utility model adopts the following technical solutions:

[0005] A divided-bin coal bunker with a blockage detection mechanism comprises a coal bunker, wherein the coal bunker is equally divided into two storage chambers by a vertically arranged partition plate, a two-way hydraulic plug-in door is arranged at the bottom of the coal bunker, a transition section is arranged below the two-way hydraulic plug-in door, the interior of the transition section is equally divided into two material discharge chambers, and a detection mechanism is arranged in each of the material discharge chambers; wherein the detection mechanism comprises a support frame elastically arranged in the material discharge chamber, a trigger rod is elastically arranged on the support frame, the bottom of the trigger rod is in contact with a transfer rod elastically arranged on the support frame, and the end face of the trigger rod in contact with the transfer rod is an inclined surface with the same slope; the transfer rod is radially arranged along the transition section, and after one end moves out from the interior of the transition section, it is located on the switch side of a warning device arranged outside the transition section.

[0006] Preferably, the trigger rod is arranged in the middle of the support frame.

[0007] Preferably, a bearing plate is provided on the top of the trigger rod, and the top of the bearing plate is an upwardly convex arc structure.

[0008] Preferably, the support frame includes support rods, the support rods vertically form a cross-shaped structure, a guide cylinder is arranged at the vertical intersection of the support rods, and the trigger rod is elastically connected to the guide cylinder by a first buffer spring; one of the support rods is an internal hollow structure, the transmission rod is elastically arranged therein by a second buffer spring, and one end thereof provided with a slope extends into the guide cylinder, and the other end corresponding to the side wall of the guide cylinder is provided with a through hole for the transmission rod to movably pass through.

[0009] Preferably, a ball is movably provided on the end surface of the trigger rod, and in an initial state, the trigger rod is in movably contact with the end surface of the transmission rod through the ball.

[0010] Preferably, the support rod is a triangular prism structure with its ridges facing upwards.

[0011] Preferably, the transition section is a cylindrical structure that penetrates from top to bottom.

[0012] Preferably, a reinforcing rod is provided on the partition plate.

[0013] Preferably, an air hammer is provided on the outer wall of the coal bunker.

[0014] Compared with the prior art, the utility model has the following beneficial effects: by arranging a transition section under the bidirectional hydraulic plug-in door, and elastically arranging trigger rods in the two material discharge cavities of the transition section, the utility model can utilize the falling coal to act on the trigger rod, drive the trigger rod to push the transfer rod to move, and the transfer rod touches the switch of the early warning device to generate an early warning, thereby judging whether the coal bunker is discharged normally. The utility model has a simple structure and strong intuitiveness, and effectively ensures the intermixing of two coals of different qualities to ensure production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of an embodiment of the present application;

[0016] Figure 2 A cross-sectional view of a transition section of an embodiment of the present application;

[0017] Figure 3 A schematic diagram of the structure of the support frame for implementing this application;

[0018] Figure 4 for Figure 2 A magnified view of middle;

[0019] Figure 5 for Figure 2 Enlarged view of B. DETAILED DESCRIPTION

[0020] The following is a clear and complete description of the present invention in conjunction with the accompanying drawings and embodiments:

[0021] like Figures 1 to 5 As shown, the utility model discloses a coal bunker with a blocking detection mechanism, comprising a coal bunker 1, which is divided into two storage chambers by a vertically arranged partition plate 2. The partition plate 2 is evenly provided with reinforcing rods 3 along its height direction to ensure its structural strength and avoid compression deformation. A two-way hydraulic plug-in door 4 is provided at the bottom of the coal bunker 1, and a transition section 5 is provided below the two-way hydraulic plug-in door 4. The transition section 5 is a cylindrical structure that runs through from top to bottom. The interior of the transition section 5 is equally divided into two material discharge chambers 6, and each material discharge chamber 6 is connected to the two-way hydraulic plug-in door 4. Corresponding to the discharge port, a detection mechanism is arranged in each discharge cavity 6 to detect whether there is coal falling in the discharge cavity 6; wherein the detection mechanism includes a support frame 7 elastically arranged in the discharge cavity 6, and a trigger rod 8 is elastically arranged on the support frame 7, and the bottom of the trigger rod 8 is in contact with a transfer rod 9 elastically arranged on the support frame 7, and the end surface of the trigger rod 8 in contact with the transfer rod 9 is an inclined surface with the same slope; in addition, the transfer rod 9 is arranged radially along the transition section 5, and after one end moves out from the inside of the transition section 5, it is located on the switch 11 side of the early warning device 10 arranged outside the transition section 5.

[0022] During operation, when coal falls, the coal falls onto the trigger rod 8, which will press the trigger rod 8 downward, and then push the transmission rod 9 outward through the inclined surface to trigger the switch 11 of the early warning device 10, generating an early warning, thereby judging whether the coal falls normally. The structure is simple, the operation is simple, and the practicability is strong. In this embodiment, the early warning device 10 is connected to the control device that controls the operation of the coal bunker 1, and the control device feeds back the signal of the switch 11 being turned on. The early warning device 10 can be an early warning light. As the switch 11 is turned on, the early warning light will light up, which is convenient for intuitively understanding the material discharge situation.

[0023] Furthermore, in this embodiment, the trigger rod 8 is arranged in the middle of the support frame 7 to ensure that the trigger rod 8 is evenly stressed. In addition, a bearing plate 12 is arranged on the top of the trigger rod 8, and the top of the bearing plate 12 is an upward convex arc structure, which increases the contact area with the coal while preventing the coal from accumulating on the top of the bearing plate 12, thereby ensuring the smooth fall of the coal.

[0024] Furthermore, the support frame 7 includes a support rod 7-1, which is vertically formed into a cross-shaped structure, and a guide cylinder 7-2 is arranged at the vertical intersection of the support rod 7-1. The trigger rod 8 is elastically connected to the guide cylinder 7-2 through the first buffer spring 13, and the bottom end of the trigger rod 8 extends into the guide cylinder 7-2; one of the support rods 7-1 is an internal hollow structure, and the transmission rod 9 is elastically arranged therein through the second buffer spring 14, and one end thereof provided with an inclined surface extends into the guide cylinder 7-2 to contact the inclined surface at the bottom end of the trigger rod 8, and a through hole for the transmission rod 9 to be movable and penetrated is opened on the side wall of the guide cylinder 7-2 corresponding to the other end of the transmission rod 9, and the through hole corresponds to the switch 11 of the early warning device 10. The support frame 7 is arranged in a cross-shaped structure, which can reduce the occupation of the internal space of the material chamber 6 while ensuring the supporting effect, and ensure the smooth falling of the coal. In addition, the support rod 7-1 is preferably configured as a triangular prism structure with the ridges facing upward, which can effectively prevent the coal from accumulating on the support rod 7-1 and provide a guide for the coal to fall.

[0025] Furthermore, in this embodiment, a ball 15 is movably provided on the end surface of the trigger rod 8. In the initial state, the trigger rod 8 and the end surface of the transmission rod 9 are in movable contact through the ball 15. The provision of the ball 15 can reduce the wear between the trigger rod 8 and the transmission rod 9, extend the service life of both, and also ensure the smooth downward movement of the trigger rod 8 under the impact of coal. In addition, in this embodiment, an air hammer 16 is also provided on the outer wall of the coal bunker 1. The air hammer 16 is preferably provided at a position 1-2 meters above the gate valve. When the coal bunker 1 is blocked, the vibration and knocking of the air hammer 16 can be used to achieve the unblocking operation.

[0026] When the utility model is in operation, when both storage cavities in the coal bunker 1 need to be unloaded, the two-way plug door is opened, and the coal falls into the transition section 5 and onto the bearing plate 12, impacting the trigger rod 8 and pushing the trigger rod 8 downward, and the trigger rod 8 pushes the transfer rod 9 to move out of the transition section 5 and contact the switch 11 of the early warning device 10. At this time, it is possible to intuitively understand whether the falling of the coal is normal through the control equipment and the early warning device 10, thereby avoiding the situation in which one of the two storage cavities in the coal bunker 1 is blocked and the other is open when unloading, and the intermixing of coal of different qualities can be realized to ensure production efficiency.

Claims

1. A coal bunker with a blocking detection mechanism, comprising a coal bunker, wherein the coal bunker is equally divided into two storage chambers by a vertically arranged partition plate, a two-way hydraulic gate is arranged at the bottom of the coal bunker, and a transition section is arranged below the two-way hydraulic gate, characterized in that: The interior of the transition section is equally divided into two material discharge cavities, and a detection mechanism is arranged in each of the material discharge cavities; wherein the detection mechanism includes a support frame elastically arranged in the material discharge cavity, a trigger rod is elastically arranged on the support frame, the bottom of the trigger rod is in contact with a transfer rod elastically arranged on the support frame, and the end surface of the trigger rod in contact with the transfer rod is an inclined surface with the same slope; the transfer rod is arranged radially along the transition section, and after one end moves out from the interior of the transition section, it is located on the switch side of the early warning device arranged outside the transition section.

2. The coal bunker with a blocking detection mechanism according to claim 1, characterized in that: The trigger rod is arranged in the middle of the support frame.

3. The coal bunker with a blocking detection mechanism according to claim 1, characterized in that: A bearing plate is arranged on the top of the trigger rod, and the top of the bearing plate is an upwardly convex arc structure.

4. The coal bunker with a blocking detection mechanism according to claim 1, characterized in that: The support frame includes support rods, which form a cross-shaped structure vertically. A guide cylinder is arranged at the vertical intersection of the support rods, and the trigger rod is elastically connected to the guide cylinder by a first buffer spring; one of the support rods is an internal hollow structure, and the transmission rod is elastically arranged therein by a second buffer spring, and one end thereof is provided with an inclined surface and extends into the guide cylinder, and a through hole is opened on the side wall of the guide cylinder corresponding to the other end for the transmission rod to movably pass through.

5. The coal bunker with a blocking detection mechanism according to claim 1, characterized in that: A ball is movably arranged on the end surface of the trigger rod, and in an initial state, the trigger rod is in movably contact with the end surface of the transmission rod through the ball.

6. The coal bunker with a blocking detection mechanism according to claim 4, characterized in that: The support rod is a triangular prism structure, and the ridge line is arranged upward.

7. The coal bunker with a blocking detection mechanism according to claim 1, characterized in that: The transition section is a cylindrical structure that penetrates from top to bottom.

8. The coal bunker with a blocking detection mechanism according to claim 1, characterized in that: The partition plate is provided with a reinforcing rod.

9. The coal bunker with a blocking detection mechanism according to claim 1, characterized in that: An air hammer is arranged on the outer wall of the coal bunker.

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