A coal plow unblocking machine

Abstract

A coal plowing and unblocking machine includes a first pipe and a second pipe. Both the first and second pipes have connecting flanges at their ends, and are fixed together by the connecting flanges. The first pipe has a feed inlet at its top and a sampling hole and maintenance hole on its side. The second pipe has a maintenance door. A first unblocking device is installed inside the first pipe, and a second unblocking device is installed inside the second pipe. This invention provides a coal plowing and unblocking machine. Compared with existing unblocking equipment, the coal plowing and unblocking machine of this invention has a simple structure, low operating and maintenance costs, and good unblocking effect. It can effectively prevent coal bridging and coal interruption in the feed pipe, thereby avoiding the forced load shedding and oil-fired boiler unit combustion.

Description

Technical Field

[0001] This invention belongs to the technical field of unblocking equipment for feed pipes, and specifically relates to a coal plowing unblocking machine. Background Technology

[0002] Currently, thermal power plants place great emphasis on environmental protection. In order to save energy, reduce emissions, and lower environmental pollution, they have begun to co-fire large quantities of peat or wet coal. Due to its structural characteristics, peat is prone to arching and clogging when transported from the silo to the boiler through the feed pipe. Conventional vibrators or air hammers cannot achieve the desired conveying effect when used for unblocking. Rotary unblocking machines or central feeders are expensive. Considering the overall cost-effectiveness, developing a simple, effective, and cost-efficient unblocking device has become a technical problem that needs to be solved. Summary of the Invention

[0003] This invention provides a coal plowing and unblocking machine. Compared with existing unblocking equipment, the coal plowing and unblocking machine of this invention has a simple structure, low operating and maintenance costs, and good unblocking effect. It can effectively prevent the coal from arching and cutting off in the feed pipe, thereby avoiding the situation where the boiler unit is forced to shed load and switch to oil for stable combustion.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0005] A coal plow unblocking machine includes a first pipe and a second pipe. Both the first and second pipes have connecting flanges at their ends, and are fixed together by these flanges. The first pipe has a feed inlet at its top and a sampling hole and maintenance hole on its side. The second pipe has a maintenance door. A first unblocking device is installed inside the first pipe, and a second unblocking device is installed inside the second pipe. The first unblocking device includes a symmetrically arranged first unblocking mechanism and a second unblocking mechanism, which have identical external structures. The first unblocking mechanism includes a reinforcing rod and a telescopic rod, which are arranged parallel to each other. The reinforcing rod is located on the first pipe... The first tube body has a telescopic rod located on the outside of the body, with a plow head at the telescopic end of the telescopic rod. The second unblocking device includes a power source, a fixing component, and a coal plow. The fixing component includes a mounting plate and several clips. The mounting plate is fixed to the inner wall of the tube body, and the clips are evenly fixed to the mounting plate. The coal plow includes a mounting rod and several plow plates. The plow plates are fixed to the left and right sides of the mounting rod by connecting blocks, with the plow heads of the plow plates facing upwards. The mounting rod is slidably mounted on the mounting plate by clips. The power source includes a mounting base and a telescopic rod. The mounting base is fixed to the inner wall of the tube body, and the telescopic rod is fixed to the mounting base. The upper end of the telescopic rod is fixedly connected to the lower end of the mounting rod.

[0006] The first tube has a structure that is wider at the top and narrower at the bottom, and a lifting lug is provided on the side of the first tube.

[0007] The second pipe has a rectangular cross-section, and a blockage-clearing device is provided on each of the four inner walls of the pipe.

[0008] The second pipe has a circular cross-section, and two unblocking devices are symmetrically arranged on the inner wall of the pipe. The plow plate in the unblocking device has an arc-shaped structure.

[0009] Each plow plate is provided with several reinforcing ribs, and the upper end of the reinforcing ribs is provided with a pointed tip.

[0010] The mounting base is a triangular structure.

[0011] The maintenance door is equipped with an observation window.

[0012] The telescopic rod is a hydraulic telescopic rod or a pneumatic telescopic rod.

[0013] By adopting the above technical solution, the beneficial effects of the present invention are:

[0014] The feed inlet of the first pipe is connected to the feed pipe of the silo. A first unblocking device is installed inside the first pipe. When coal blockage occurs inside the first pipe, the sensor installed on the coal feeder sends a coal cut-off signal, and the controller controls the first unblocking device to start working. When the slurry sticks or gets blocked during the feeding process, the telescopic rod of the first unblocking device moves. The telescopic rod drives the plow to reciprocate inside the first pipe. The plow removes the slurry that sticks or gets blocked on the inner wall of the first pipe.

[0015] Simultaneously, the telescopic rod inside the second pipe drives the coal plow to reciprocate on the fixed part. The plow plate on the coal plow removes the sludge that is stuck or blocked on the inner wall of the second pipe, ensuring the safe, stable and economical operation of the boiler unit. When the coal blockage in the feed pipe is cleared, the sensor sends a coal blockage clearance signal, and the controller controls the first and second unblocking devices to stop operating, completing the unblocking operation of the feed pipe. Compared with existing unblocking equipment, the coal plowing unblocking machine used in this invention has a simple structure, low operating and maintenance costs, and good unblocking effect. It can effectively prevent the sludge from arching and cutting off coal in the feed pipe, thereby avoiding the boiler unit being forced to shed load and the situation of oil injection for stable combustion.

[0016] In summary, this invention provides a coal plowing and unblocking machine. Compared with existing unblocking equipment, the coal plowing and unblocking machine of this invention has a simple structure, low operating and maintenance costs, and good unblocking effect. It can effectively prevent the coal from arching and cutting off in the feed pipe, thereby avoiding the boiler unit being forced to shed load and the situation of oil injection for stable combustion. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention;

[0018] Figure 2 for Figure 1 The left view;

[0019] Figure 3 This is a schematic diagram of the structure of the second tube in this invention;

[0020] Figure 4 for Figure 3 Schematic diagram of the structure of the medium plow;

[0021] Figure 5 for Figure 4 The left view;

[0022] Figure 6 This is a schematic diagram of the fastener structure in this invention;

[0023] Figure 7 for Figure 5 The left view;

[0024] Figure 8 This is a schematic diagram of the plow plate in this invention;

[0025] Figure 9 This is a schematic diagram of the structure of Embodiment 2 of the coal plow in this invention;

[0026] Figure 10 for Figure 9 The left view;

[0027] Figure 11 for Figure 9 Top view;

[0028] Figure 12 This is a schematic diagram of the structure of Embodiment 3 of the coal plow in this invention;

[0029] Figure 13 for Figure 12 The left view;

[0030] Figure 14 for Figure 12 Top view.

[0031] First tube body 1, second tube body 2, feed inlet 3, sampling hole 4, maintenance hole 5, maintenance door 6, reinforcing rod 7, first telescopic rod 8, plow head 9, mounting plate 10, buckle 11, mounting rod 12, plow plate 13, mounting base 14, second telescopic rod 15, lifting lug 16, reinforcing rib 17, observation window 18. Detailed Implementation

[0032] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] like Figures 1-14 As shown; a coal plow unblocking machine includes a first pipe body 1 and a second pipe body 2. Both ends of the first pipe body 1 and the second pipe body 2 are provided with connecting flanges, which fix the first pipe body 1 and the second pipe body 2 together. A feed inlet 3 is opened at the top of the first pipe body 1, and a sampling hole 4 and a maintenance hole 5 are opened on the side of the first pipe body 1. A maintenance door 6 is opened on the second pipe body 2. A first unblocking device is provided inside the first pipe body 1, and a second unblocking device is provided inside the second pipe body 2. The first unblocking device includes a first unblocking mechanism and a second unblocking mechanism symmetrically arranged. The first unblocking mechanism and the second unblocking mechanism have the same external structure. The first unblocking mechanism includes a reinforcing rod 7 and a first telescopic rod 8, which are arranged parallel to each other. The reinforcing rod 7 is located outside the first pipe body 1, and the first telescopic rod 8 is located outside the first pipe body 1. Inside the pipe body 1, a plow head 9 is provided at the end of the telescopic end of the first telescopic 8; the second unblocking device includes a power source, a fixing component, and a coal plow. The fixing component includes a mounting plate 10 and several buckles 11. The mounting plate 10 is fixed to the inner wall of the pipe body, and the buckles 11 are evenly fixed to the mounting plate 10. The coal plow includes a mounting rod 12 and several plow plates 13. The plow plates 13 are fixed to the left and right sides of the mounting rod 12 by connecting blocks. The plow head 9 of the plow plate 13 is set upward. The mounting rod 12 is slidably set on the mounting plate 10 by the buckles 11. The power source includes a mounting seat 14 and a second telescopic rod 15. The mounting seat 14 is fixed to the inner wall of the pipe body, and the second telescopic rod 15 is fixed to the mounting seat 14. The upper end of the second telescopic rod 15 is fixedly connected to the lower end of the mounting rod 12.

[0035] The first tube 1 has a tube structure that is wider at the top and narrower at the bottom, and the side of the first tube 1 is also provided with a lifting lug 16.

[0036] The second pipe body 2 has a rectangular cross-section, and a blockage clearing device is provided on each of the four inner walls of the pipe body.

[0037] The second pipe body 2 has a circular cross-section. Two unblocking devices are symmetrically arranged on the inner wall of the pipe body. The plow plate 13 in the unblocking device has an arc-shaped structure. Alternatively, the plow plate can be set as a rectangular frame structure according to requirements. The rectangular frame structure is adapted to the inner wall of the second pipe body 2.

[0038] Each plow plate 13 is provided with several reinforcing ribs 17, and the upper end of the reinforcing ribs 17 is provided with a pointed end.

[0039] The mounting base 14 is a triangular structure mounting base.

[0040] The maintenance door 6 is provided with an observation window 18.

[0041] The telescopic rod 8 is a hydraulic telescopic rod or a pneumatic telescopic rod.

[0042] By adopting the above technical solution, the method of use and beneficial effects of the present invention are as follows:

[0043] The feed inlet 3 of the first pipe body 1 is connected to the feed pipe of the silo. A first unblocking device is installed inside the first pipe body 1. When coal blockage occurs inside the first pipe body 1, the sensor installed on the coal feeder sends a coal cut-off signal, and the controller controls the first unblocking device to start working. When the slurry sticks or gets blocked during the feeding process, the telescopic rod 8 of the first unblocking device moves. The telescopic rod 8 drives the plow head 9 to reciprocate inside the first pipe body 1. The plow head 9 scrapes off the slurry sticking or blocking the inner wall of the first pipe body 1.

[0044] Simultaneously, the telescopic rod 8 inside the second tube 2 drives the coal plow to reciprocate on the fixed part. The plow plate 13 on the coal plow removes the sludge that is stuck or blocked on the inner wall of the second tube 2, ensuring the safe, stable and economical operation of the boiler unit. When the coal blockage in the feed pipe is cleared, the sensor sends a coal blockage clearance signal, and the controller controls the first and second unblocking devices to stop operating, completing the unblocking operation of the feed pipe. Compared with existing unblocking equipment, the coal plowing unblocking machine used in this invention has a simple structure, low operating and maintenance costs, and good unblocking effect. It can effectively prevent the sludge from arching and cutting off coal in the feed pipe, thereby avoiding the boiler unit being forced to shed load and the situation of oil injection for stable combustion.

[0045] The first pipe body 1 and the second pipe body 2 can be connected in series for unblocking operations, or they can be used separately for unblocking operations. The structure is simple, the unblocking effect is good, the use and maintenance cost is low, and it is suitable for large-scale promotion and use.

[0046] In summary, this invention provides a coal plowing and unblocking machine. Compared with existing unblocking equipment, the coal plowing and unblocking machine of this invention has a simple structure, low operating and maintenance costs, and good unblocking effect. It can effectively prevent the coal from arching and cutting off in the feed pipe, thereby avoiding the boiler unit being forced to shed load and the situation of oil injection for stable combustion.

[0047] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A coal plow unblocking machine, comprising a first pipe body and a second pipe body, both ends of which are provided with connecting flanges, the first pipe body and the second pipe body being fixed together by the connecting flanges, a feed inlet being provided at the top of the first pipe body, a sampling hole and a maintenance hole being provided on the side of the first pipe body, a maintenance door being provided on the second pipe body, a first unblocking device being provided inside the first pipe body, and a second unblocking device being provided inside the second pipe body, characterized in that: The first unblocking device includes a first unblocking mechanism and a second unblocking mechanism arranged symmetrically. The first and second unblocking mechanisms have the same external structure. The first unblocking mechanism includes a reinforcing rod and a first telescopic rod, which are arranged in parallel. The reinforcing rod is located on the outside of the first pipe body, and the first telescopic rod is located on the inside of the first pipe body. A plow head is provided at the telescopic end of the first telescopic rod. The second unblocking device includes a power source, a fixing component, and a coal plow. The fixing component includes a mounting plate and several buckles. The mounting plate is fixed on the inner wall of the second pipe body, and the buckles are evenly fixed on the mounting plate. The coal plow includes a mounting rod and several plow plates. The plow plates are fixed on the left and right sides of the mounting rod by connecting blocks. The plow heads of the plow plates are set upwards. The mounting rod is slidably mounted on the mounting plate by buckles. The power source includes a mounting base and a second telescopic rod. The mounting base is fixed on the inner wall of the second pipe body, and the second telescopic rod is fixed on the mounting base. The upper end of the second telescopic rod is fixedly connected to the lower end of the mounting rod. When the cross-section of the second pipe is a rectangular structure, a second unblocking device is provided on each of the four inner walls of the second pipe; When the cross-section of the second pipe is circular, two second unblocking devices are symmetrically provided on the inner wall of the second pipe, and the plow plate in the second unblocking device is an arc-shaped structure. The second tube is a uniform cylindrical structure, with several reinforcing ribs on each plow plate, and the upper end of the reinforcing ribs is pointed.

2. The coal plowing and unblocking machine according to claim 1, characterized in that: The first tube has a structure that is wider at the top and narrower at the bottom, and a lifting lug is provided on the side of the first tube.

3. The coal plowing and unblocking machine according to claim 2, characterized in that: The mounting base is a triangular structure.

4. A coal plowing and unblocking machine according to claim 3, characterized in that: The maintenance door is equipped with an observation window.

5. A coal plowing and unblocking machine according to claim 4, characterized in that: The first telescopic rod and the second telescopic rod are hydraulic telescopic rods or pneumatic telescopic rods.

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