Power plant coal falling wear-resistant pipeline

Abstract

The utility model discloses a power plant coal falling wear -resisting pipeline of power plant coal conveying industry. Including the outer tube, the inside wear -resisting pipe of outer tube is covered, and the front and rear end of outer tube all is welded and has the installation flange, and the below of outer tube is equipped with the buffer support component, and the upper of outer tube rear end is equipped with the coal falling guide pipe, and the buffer block is equipped with in coal falling guide pipe inner oblique symmetry, and the coal guide bucket is equipped with on coal falling guide pipe top, and the dust absorption component is equipped with on outer tube front end top, and this device can inhale the waste gas into the collection bag through setting dust absorption component, prevents the direct discharge into the atmosphere and causes the pollution, and in addition sets up the filter plate in dust absorption component, and further carries out the filtration to the waste gas, and the centralized treatment of waste gas in collection bag in later period is convenient, sets up the buffer block in coal falling guide pipe, and the impact force of the coal material that falls down can be slowed down, and in addition sets up the inner wear -resisting pipe in the outer tube, also has increased the wear -resisting degree of pipe inner wall, has increased the service life of coal falling pipe greatly.

Description

Technical Field

[0001] This utility model relates to the field of coal conveying technology in power plants, specifically to a wear-resistant coal-feeding pipe for power plants. Background Technology

[0002] An electric power plant is a power plant that converts some form of primitive energy (such as hydropower, steam, diesel, or natural gas) into electrical energy to power fixed facilities or transportation (nuclear power plants, wind power plants, solar power plants, etc.). Thermal power generation utilizes the heat energy obtained from burning fuels (coal, oil and its products, natural gas, etc.). There are two main types of thermal power generator sets: those that use high-temperature, high-pressure steam generated by a boiler to drive a steam turbine and generate electricity are called steam turbine generator sets; those that use fuel to directly convert heat energy into mechanical energy to drive a generator are called gas turbine generator sets. Thermal power plants typically refer to power plants that primarily use steam turbine generator sets.

[0003] Power plant coal conveying system equipment generally includes fuel transportation, coal unloading machinery, coal receiving equipment, coal yard facilities, coal conveying equipment, coal metering devices and screening and crushing devices, centralized control and automation, as well as other auxiliary equipment and ancillary buildings. During power production, a large amount of coal needs to be burned, consuming tens of thousands of tons of coal every day. Manual transportation is very slow, and the demand is too large to be completed manually. Therefore, a coal chute for power plant coal conveying system is particularly needed.

[0004] However, existing technologies have the following problems:

[0005] 1. Currently, when the coal chutes are in use, the exhaust gas generated inside is directly discharged into the atmosphere. On the one hand, this causes workers to work in the vicinity for a long time and inhale the exhaust gas, which will affect their health. On the other hand, it will also pollute the environment.

[0006] 2. In the existing coal chute, the coal material falls directly from the hopper into the pipe during use, which will cause collisions and easily damage the pipe wall over time. Utility Model Content

[0007] The purpose of this utility model is to provide a wear-resistant pipe for coal falling in power plants, so as to solve the problems of exhaust gas pollution and easy damage to the pipe wall mentioned above.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a wear-resistant coal cutting pipe for power plants, comprising an outer pipe, an inner wear-resistant pipe sleeved inside the outer pipe, mounting flanges welded to both the front and rear ends of the outer pipe, a buffer support assembly installed below the outer pipe, a coal cutting guide installed above the rear end of the outer pipe, buffer blocks obliquely and symmetrically installed inside the coal cutting guide, a coal guide hopper installed above the coal cutting guide, and a dust collection assembly installed above the front end of the outer pipe.

[0009] As a further embodiment of this invention: the mounting flange has a threaded mounting hole at the front end of the outer pipe, and a through mounting hole at the rear end of the outer pipe. The mounting flange, in conjunction with the threaded mounting hole and the through mounting hole, facilitates the connection of the two coal chutes.

[0010] As a further embodiment of this invention: the buffer support assembly includes a buffer seat, six support legs mounted below the buffer seat, mounting blocks mounted above the front and rear ends of the buffer seat, a limiting groove between the mounting blocks, three limiting posts arranged within the limiting groove, and a buffer spring sleeved on the limiting groove. The buffer support assembly is used to support the outer pipe and provide a certain buffer when the amount of coal is large, preventing the outer pipe from being damaged.

[0011] As a further embodiment of this utility model: the lower end of the coal chute is welded to the wall of the outer pipe, a mounting seat is installed above the coal chute, and a mounting plate is installed below the coal hopper; the mounting seat and the mounting plate are fixedly connected by bolts. The coal chute is used to guide the coal from the coal hopper into the outer pipe, and the mounting seat and the mounting plate cooperate to fix the coal chute and the coal hopper.

[0012] As a further aspect of this invention: the buffer block is topped with a rubber wear-resistant block, and an elastic support seat is installed below the rubber wear-resistant block. The other end of the elastic support seat is connected to the inner wall of the coal falling guide pipe. The buffer block is used to mitigate the impact force of falling coal and prevent damage to the inner wall.

[0013] As a further embodiment of this invention: the dust collection assembly includes a dust collection pipe welded to the upper right side of the outer pipe, a dust collection fan installed inside the upper part of the dust collection pipe, a dust outlet bend installed at the top of the dust collection pipe, a fixing ring installed at the connection between the dust collection pipe and the dust outlet bend, a filter plate installed inside the lower part of the dust outlet bend, a collection bag connected to the front end of the dust outlet bend, and the dust outlet bend and the collection bag are fixedly connected by a connecting ring. The dust collection assembly is used to filter and collect exhaust gas from the pipe.

[0014] As a further aspect of this utility model: the inner wear-resistant pipe is connected to the coal chute, coal hopper, dust suction pipe, and dust discharge bend. The inner wear-resistant pipe is used for coal transportation.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. In this utility model, by setting a dust collection component, the exhaust gas can be sucked into the collection bag to prevent it from being directly discharged into the atmosphere and causing pollution. In addition, a filter plate is set in the dust collection component to further filter the exhaust gas, which facilitates the centralized treatment of the exhaust gas in the collection bag later.

[0017] 2. In this utility model, the buffer block installed inside the coal chute can reduce the impact force of the falling coal. In addition, the inner wear-resistant pipe installed inside the outer pipe also increases the wear resistance of the inner wall of the pipe, greatly increasing the service life of the coal chute. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the coal feeding conduit of this utility model;

[0020] Figure 3 This is a schematic diagram of the buffer support component structure of this utility model;

[0021] Figure 4 This is an exploded view of the dust collection component structure of this utility model.

[0022] In the diagram: 1. Outer tube; 2. Inner wear-resistant tube; 3. Mounting flange; 4. Mounting threaded hole; 5. Mounting through hole; 6. Buffer support assembly; 601. Buffer seat; 602. Support leg; 603. Mounting block; 604. Limiting groove; 605. Limiting post; 606. Buffer spring; 7. Coal drop guide pipe; 8. Mounting seat; 9. Coal guide hopper; 10. Mounting plate; 11. Buffer block; 1101. Rubber wear-resistant block; 1102. Elastic support seat; 12. Dust collection assembly; 1201. Dust collection pipe; 1202. Dust collection fan; 1203. Dust discharge bend; 1204. Fixing ring; 1205. Filter plate; 1206. Connecting ring; 1207. Collection bag. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4In this embodiment of the present invention, a wear-resistant coal chuting pipe for power plants includes an outer pipe 1, an inner wear-resistant pipe 2 sleeved inside the outer pipe 1, mounting flanges 3 welded to both the front and rear ends of the outer pipe 1, a buffer support assembly 6 installed below the outer pipe 1, a coal chuting guide 7 installed above the rear end of the outer pipe 1, buffer blocks 11 obliquely and symmetrically installed inside the coal chuting guide 7, a coal guide hopper 9 installed above the coal chuting guide 7, and a dust collection assembly 12 installed above the front end of the outer pipe 1. This device, by setting the dust collection assembly 12, can draw exhaust gas into a collection bag 1207, preventing direct discharge into the atmosphere and causing pollution. Furthermore, a filter plate 1205 is installed inside the dust collection assembly 12 to further filter the exhaust gas, facilitating centralized treatment of the exhaust gas in the collection bag 1207 later. The buffer blocks 11 inside the coal chuting guide 7 can reduce the impact force of falling coal. Additionally, the inner wear-resistant pipe 2 inside the outer pipe 1 increases the wear resistance of the inner wall of the pipe, greatly increasing the service life of the coal chuting pipe.

[0025] The mounting flange 3 is equipped with a threaded mounting hole 4 at the front end of the outer pipe 1, and a through mounting hole 5 at the rear end of the outer pipe 1. The mounting flange 3, together with the threaded mounting hole 4 and the through mounting hole 5, facilitates the connection of the two coal chutes.

[0026] The buffer support assembly 6 includes a buffer seat 601, with six support legs 602 mounted below the buffer seat 601. Mounting blocks 603 are mounted above the front and rear ends of the buffer seat 601, and limiting grooves 604 are formed between the mounting blocks 603. Three limiting posts 605 are arranged within the limiting grooves 604, and buffer springs 606 are sleeved around the limiting grooves 604. The buffer support assembly 6 is used to support the outer pipe 1 and provide a certain buffer when the amount of coal is large, preventing the outer pipe 1 from being damaged.

[0027] The lower end of the coal chute 7 is welded to the wall of the outer pipe 1. An installation seat 8 is installed above the coal chute 7, and an installation plate 10 is installed below the coal hopper 9. The installation seat 8 and the installation plate 10 are fixedly connected by bolts. The coal chute 7 is used to guide the coal from the coal hopper 9 into the outer pipe 1, and the installation seat 8 and the installation plate 10 are used to fix the coal chute 7 and the coal hopper 9.

[0028] Above the buffer block 11 is a rubber wear-resistant block 1101, and below the rubber wear-resistant block 1101 is an elastic support seat 1102. The other end of the elastic support seat 1102 is connected to the inner wall of the coal falling guide pipe 7. The buffer block 11 is used to mitigate the impact force of falling coal and prevent damage to the inner wall.

[0029] The vacuum assembly 12 includes a vacuum pipe 1201 welded to the upper right side of the outer pipe 1. A vacuum fan 1202 is installed inside the upper part of the vacuum pipe 1201. A dust outlet bend 1203 is installed at the top of the vacuum pipe 1201. A fixing ring 1204 is installed at the connection between the vacuum pipe 1201 and the dust outlet bend 1203. A filter plate 1205 is installed inside the lower part of the dust outlet bend 1203. A collection bag 1207 is connected to the front end of the dust outlet bend 1203. The dust outlet bend 1203 and the collection bag 1207 are fixedly connected by a connecting ring 1206. The vacuum assembly 12 is used to filter and collect exhaust gas in the pipe.

[0030] The inner wear-resistant pipe 2 is connected to the coal drop pipe 7, the coal hopper 9, the dust suction pipe 1201, and the dust discharge bend 1203. The inner wear-resistant pipe 2 is used for coal transportation.

[0031] The working principle and usage process of this utility model are as follows: Coal is placed into the coal guide hopper 9, and the coal enters the coal falling guide pipe 7 through the coal guide hopper 9. At this time, the coal falls on the buffer block 11 to reduce the downward impact force, and then falls into the inner wall of the inner wear-resistant pipe 2 through the outer pipe 1. It is transported on the inner wall of the inner wear-resistant pipe 2. When there is a lot of coal inside, the buffer spring 606 is compressed to provide buffer force to the outer pipe 1 and prevent damage to the outer pipe 1 and the inner wear-resistant pipe 2. At the same time, the dust suction fan 1202 works to draw the exhaust gas in the inner wear-resistant pipe 2 from the dust suction pipe 1201 through the filter plate 1205 into the dust outlet bend pipe 1203, and then into the collection bag 1207. When the collection bag 1207 is full, the collection bag 1207 is replaced through the connecting ring 1206. This device, by setting up a dust suction component 12, can suck the exhaust gas into the collection bag 1207 to prevent it from being directly discharged into the atmosphere and causing pollution. In addition, a filter plate 1205 is set inside the dust suction component 12 to further filter the exhaust gas, which facilitates the centralized treatment of the exhaust gas in the collection bag 1207 later. A buffer block 11 is set inside the coal falling pipe 7 to reduce the impact force of the falling coal. In addition, an inner wear-resistant pipe 2 is set inside the outer pipe 1, which also increases the wear resistance of the inner wall of the pipe and greatly increases the service life of the coal falling pipe.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A wear-resistant pipe for coal cutting in a power plant, comprising an outer pipe (1), characterized in that: The outer tube (1) is fitted with an inner wear-resistant tube (2). The front and rear ends of the outer tube (1) are welded with mounting flanges (3). A buffer support assembly (6) is installed below the outer tube (1). A coal drop pipe (7) is installed above the rear end of the outer tube (1). Buffer blocks (11) are installed obliquely and symmetrically inside the coal drop pipe (7). A coal guide hopper (9) is installed above the coal drop pipe (7). A dust collection assembly (12) is installed above the front end of the outer tube (1).

2. The wear-resistant pipeline for coal cutting in power plants according to claim 1, characterized in that: The mounting flange (3) is provided with a mounting threaded hole (4) at the front end of the outer tube (1), and a mounting through hole (5) is provided at the rear end of the outer tube (1).

3. The wear-resistant pipeline for coal chutes in power plants according to claim 1, characterized in that: The buffer support assembly (6) includes a buffer seat (601), six support legs (602) are mounted below the buffer seat (601), mounting blocks (603) are mounted above the front and rear ends of the buffer seat (601), a limiting groove (604) is formed between the mounting blocks (603), three limiting posts (605) are arranged in the limiting groove (604), and a buffer spring (606) is sleeved on the limiting groove (604).

4. The wear-resistant pipeline for coal cutting in power plants according to claim 1, characterized in that: The lower end of the coal drop pipe (7) is welded to the wall of the outer pipe (1). An installation seat (8) is installed above the coal drop pipe (7), and an installation plate (10) is installed below the coal hopper (9). The installation seat (8) and the installation plate (10) are fixedly connected by bolts.

5. The wear-resistant pipeline for coal cutting in power plants according to claim 1, characterized in that: Above the buffer block (11) is a rubber wear-resistant block (1101), and below the rubber wear-resistant block (1101) is an elastic support seat (1102). The other end of the elastic support seat (1102) is connected to the inner wall of the coal drop pipe (7).

6. The wear-resistant pipeline for coal cutting in power plants according to claim 1, characterized in that: The dust collection assembly (12) includes a dust collection pipe (1201) welded to the upper right side of the outer tube (1). A dust collection fan (1202) is installed inside the upper part of the dust collection pipe (1201). A dust outlet bend (1203) is installed at the top of the dust collection pipe (1201). A fixing ring (1204) is installed at the connection between the dust collection pipe (1201) and the dust outlet bend (1203). A filter plate (1205) is installed inside the lower part of the dust outlet bend (1203). A collection bag (1207) is connected to the front end of the dust outlet bend (1203). The dust outlet bend (1203) and the collection bag (1207) are fixedly connected by a connecting ring (1206).

7. The wear-resistant pipeline for coal cutting in power plants according to claim 5, characterized in that: The inner wear-resistant pipe (2) is connected to the coal drop pipe (7), the coal guide hopper (9), the dust suction pipe (1201), and the dust discharge bend (1203).

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