Separated coal bunker with coal pusher

Abstract

The utility model relates to the technical field of stock bin dredging, and discloses a sub-bin coal bunker with a coal pusher, which comprises a stock bin, and the interior of the stock bin is divided into two storage cavities by a vertically arranged partition plate; a bidirectional hydraulic slide plate gate is arranged at the bottom of the stock bin, a transition joint is connected to the lower portion of the bidirectional hydraulic slide plate gate, the transition joint is of an upper-stage structure and a lower-stage structure which are coaxially arranged, and the diameter of the transition joint of the upper stage is smaller than that of the transition joint of the lower stage. A coal pusher is arranged on the next-stage transition joint, the coal pusher comprises an oil cylinder arranged on the outer side of the transition joint, the telescopic end of the oil cylinder is connected with a push rod, the push rod movably penetrates into the next-stage transition joint, and a pushing piece is arranged at the end of the push rod; according to the utility model, coal can be dredged during blanking, so that the smooth falling of the coal is ensured, and the production efficiency is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of silo dredging, in particular to a sub-bin coal silo with a coal pusher. 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 bunker after the separate bunker renovation has the problem of blocking when unloading, which not only affects the work efficiency, but also makes it difficult to operate when clearing the blockage. Therefore, a separate bunker with a coal pusher is urgently needed. Utility Model Content

[0003] The utility model aims to provide a coal bunker with a coal pusher, which can dredge the coal when unloading, ensure the smooth falling of the coal, and ensure the production efficiency.

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

[0005] A divided-bin coal bunker with a coal pusher comprises a bunker, the interior of which is divided into two storage chambers by a vertically arranged partition; a transition section is connected below the bidirectional hydraulic plug-in door, the transition section is a coaxially arranged upper and lower two-level structure, wherein the diameter of the transition section of the upper level is smaller than the diameter of the transition section of the lower level; a coal pusher is arranged on the transition section of the lower level, the coal pusher comprises an oil cylinder arranged outside the transition section, the telescopic end of the oil cylinder is connected to a push rod, the push rod is movably inserted into the transition section of the lower level, and a pushing member is arranged at the end thereof.

[0006] Preferably, two oil cylinders are provided and are symmetrically arranged on both sides of the transition section.

[0007] Preferably, the pushing member comprises a connecting portion arranged at the bottom of the push rod, and arc-shaped loose plates are arranged on both sides of the connecting portion.

[0008] Preferably, both upper and lower ends of the loosening plate are provided with loosening heads with pointed ends.

[0009] Preferably, a vertical loosening rod is provided at the bottom end of the connecting portion; and the bottom end of the vertical loosening rod has a tip structure.

[0010] Preferably, a horizontal loosening rod is provided at one end of the connecting portion away from the inner wall of the transition section.

[0011] Preferably, the horizontal loose rod structure is a triangular prism structure, and one end of the horizontal loose rod having a ridgeline is arranged downward.

[0012] Preferably, the push rod and the connecting part are both hollow structures and are connected to each other, and the top of the push rod is connected to the air source through a connecting hose; the horizontal loosening rod and the vertical loosening rod are both hollow structures and are connected to the inside of the connecting part, and air holes are provided on the horizontal loosening rod and the vertical loosening rod.

[0013] Preferably, the air holes are opened obliquely downward.

[0014] Preferably, air hammers are provided on the transition section and the outer wall of the coal bunker.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the utility model has two-stage transition sections and an oil cylinder is arranged on the lower transition section, so that the oil cylinder can be used to drive the push rod to move up and down in the transition section, thereby driving the pushing member to move in the transition section, loosening and pushing the coal material that falls into the transition section, avoiding blockage of the coal material during the downward transportation process, and ensuring production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of the present application;

[0017] Figure 2 A partial cross-sectional view of a transition section according to an embodiment of the present application;

[0018] Figure 3 This is a schematic diagram of the structure of the pusher for implementing this application. DETAILED DESCRIPTION

[0019] The following is a clear and complete description of the present invention in conjunction with the accompanying drawings and embodiments:

[0020] like Figures 1 to 3As shown, a divided coal bunker with a coal pusher described in the utility model comprises a bunker 1, the interior of the bunker 1 is divided into two storage chambers by a vertically arranged partition 2, reinforcement rods 3 are arranged on both sides of the partition 2 in the vertical direction, and the reinforcement rods 3 are of a cylindrical structure to reduce the accumulation of coal on the reinforcement rods 3; a two-way hydraulic plug-in door 4 is arranged at the bottom of the bunker 1, and a transition section 5 is connected below the two-way hydraulic plug-in door 4, and the transition section 5 is a coaxially arranged upper and lower two-level structure, wherein the diameter of the transition section 5 of the upper level is smaller than the diameter of the transition section 5 of the lower level; a coal pusher is arranged on the outside of the transition section 5 of the lower level, and the coal pusher comprises an oil cylinder 6 arranged on the outside of the transition section 5 of the lower level, and the telescopic end of the oil cylinder 6 is connected to a push rod 7, and the push rod 7 is arranged parallel to the oil cylinder 6, and the bottom end of the push rod 7 is movably inserted into the transition section 5 of the lower level, and a pushing member is arranged at its end. When working, the control cylinder 6 can drive the push rod 7 to move up and down to complete the loosening operation of the coal material, avoid the blockage and accumulation of the coal material in the process of conveying downward in the transition section 5, ensure the material discharge efficiency, and ensure the production progress; wherein, a sliding sleeve 8 is fixedly arranged on the top of the next-level transition section 5, and the push rod 7 moves through the sliding sleeve 8 and is located in the corresponding transition section 5. In addition, in this embodiment, it is preferred that two cylinders 6 are provided, and the two cylinders 6 are symmetrically arranged on both sides of the transition section 5 to achieve dredging in multiple positions and ensure the smoothness of material discharge in the transition section 5.

[0021] Furthermore, the pushing member includes a connecting portion 9 arranged at the bottom of the push rod 7, and arc-shaped loosening plates 10 are arranged on both sides of the connecting portion 9; as the push rod 7 moves up and down, the loosening plates 10 can be driven to move up and down, so as to push and loosen the coal material and prevent the accumulation and blockage of the coal material; wherein the upper and lower ends of the loosening plate 10 are provided with loosening heads 11 with pointed ends to reduce the resistance when the loosening plate 10 moves up and down, thereby improving the conveying effect.

[0022] Furthermore, a vertical loosening rod 12 is provided at the bottom end of the connecting portion 9; the bottom end of the vertical loosening rod 12 has a pointed structure, and the vertical loosening rod 12 is preferably provided on a side close to the inner wall of the transition section 5; a horizontal loosening rod 13 is provided at one end of the connecting portion 9 away from the inner wall of the transition section 5; the arrangement of the horizontal loosening rod 13 and the vertical loosening rod 12 can cooperate with the loosening plate 10 to increase the coverage range and realize the multi-directional loosening and pushing of the coal material. The horizontal loosening rod 13 is a triangular prism structure, and one end of the horizontal loosening rod 13 with the ridge line is arranged downward to reduce the resistance to downward movement after contacting the coal. The vertical loosening rod 12, the horizontal loosening rod 13, the connecting portion 9, the loosening plate 10 and the loosening head 11 in the utility model are all made of steel to ensure their structural strength.

[0023] Furthermore, the push rod 7 and the connecting part 9 are both hollow structures, and the two are connected. The top of the push rod 7 is connected to the air source through the connecting hose 14. The air source can be Figure 1The structure in the embodiment is that the top of the push rod 7 is connected to the buffer tank 15 through a retractable connecting hose 14, and the buffer tank 15 is connected to the gas source through the gas source pipe 16; the interior of the horizontal loosening rod 13 and the vertical loosening rod 12 are both hollow structures and are both connected to the interior of the connecting part 9, and the horizontal loosening rod 13 and the vertical loosening rod 12 are both provided with air holes 17; during operation, the pressurized gas can be controlled to be delivered to the interior of the push rod 7, and ejected from the air holes 17 on the vertical loosening rod 12 and the horizontal loosening rod 13 into the accumulated coal material, and the accumulated coal material is loosened by the high-pressure airflow, which can further improve the efficiency of dredging the coal bunker. The air holes 17 are preferably opened obliquely downward so that the airflow is transmitted downward along the accumulated coal material to loosen the coal material below.

[0024] Furthermore, in the present embodiment, air hammers 18 are provided on the transition section 5 and the outer wall of the silo 1 to assist in clearing the blockage, thereby further reducing the probability of blockage in the coal silo, ensuring smooth material discharge, and improving work efficiency.

Claims

1. A coal bunker with a coal pusher, comprising a bunker, the interior of which is divided into two storage chambers by a vertical partition; a two-way hydraulic gate is provided at the bottom of the bunker, characterized in that: A transition section is connected below the bidirectional hydraulic plug door, and the transition section is a coaxially arranged upper and lower two-level structure, wherein the diameter of the transition section of the upper level is smaller than the diameter of the transition section of the lower level; a coal pusher is arranged on the transition section of the lower level, and the coal pusher includes an oil cylinder arranged on the outside of the transition section, and a push rod is connected to the telescopic end of the oil cylinder, and the push rod is movably inserted into the transition section of the lower level, and a pushing member is arranged at the end thereof.

2. The coal bunker with coal pusher according to claim 1, characterized in that: There are two oil cylinders, which are symmetrically arranged on both sides of the transition section.

3. The coal bunker with coal pusher according to claim 1, characterized in that: The pushing member comprises a connecting portion arranged at the bottom of the push rod, and arc-shaped loose plates are arranged on both sides of the connecting portion.

4. The coal bunker with coal pusher according to claim 3, characterized in that: The upper and lower ends of the loosening plate are both provided with loosening heads with pointed ends.

5. The coal bunker with coal pusher according to claim 3, characterized in that: A vertical loosening rod is arranged at the bottom end of the connecting part; and the bottom end of the vertical loosening rod has a tip structure.

6. The coal bunker with coal pusher according to claim 5, characterized in that: A horizontal loosening rod is arranged at one end of the connecting portion away from the inner wall of the transition section.

7. The coal bunker with coal pusher according to claim 6, characterized in that: The horizontal loose rod structure is a triangular prism structure, and one end of the horizontal loose rod having a ridgeline is arranged downward.

8. The coal bunker with coal pusher according to claim 7, characterized in that: The push rod and the connecting part are both hollow structures and are connected to each other. The top of the push rod is connected to the air source through a connecting hose. The horizontal loosening rod and the vertical loosening rod are both hollow structures and are connected to the inside of the connecting part. Air holes are provided on the horizontal loosening rod and the vertical loosening rod.

9. The coal bunker with coal pusher according to claim 8, characterized in that: The pores are opened obliquely downward.

10. The coal bunker with coal pusher according to claim 1, characterized in that: Air hammers are arranged on the transition section and the outer wall of the silo.

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