A slag collection device

By designing a slag collection device and utilizing the combination of a collection box and a shovel, the problem of difficult boiler slag collection was solved, achieving a highly efficient slag cleaning effect.

CN117053216BActive Publication Date: 2025-10-28HUANENG HEGANG POWER CO LTD
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Patent Information

Application Number
CN202311077850.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-08-24
Publication Date
2025-10-28
Estimated Expiration
2043-08-24

AI Technical Summary

Technical Problem

Traditional boilers lack an effective slag pushing structure, making it difficult to collect and discharge slag uniformly, which affects cleaning efficiency.

Method used

Design a slag collection device, including a collection box, rigging and shovel, to achieve inclined collection and discharge of slag through the cooperation of a movable door, a rotating rod and a shovel.

Benefits of technology

It improves the efficiency of slag cleaning, is simple and convenient to operate, and is suitable for boilers in thermal power plants and other equipment that produces slag from burning fuels.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention relates to the field of slag cleaning technology, and in particular to a slag collection device. It includes a furnace body with a movable door on its side wall. A collection box is located inside the furnace body, with one end of the collection box near the movable door rotatably connected to the furnace body. A rigging is attached to the end of the collection box away from the movable door, penetrating the side wall of the furnace body with the movable door. A shovel plate movable along the bottom wall of the collection box is provided. The collection box collects slag generated during furnace combustion. To clean the slag, the movable door of the furnace body is opened, the rigging is pulled, the collection box rotates, tilting the box and moving the shovel plate, which pushes the slag out of the furnace body. The operation is simple and convenient, improving slag cleaning efficiency.
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Description

Technical Field

[0001] This invention relates to the field of slag cleaning technology, and in particular to a slag collection device. Background Technology

[0002] Boilers in thermal power plants are one of the most important pieces of equipment in the power generation process. They are used to convert the heat energy generated by burning fuel into steam, which then drives the generator to produce electricity. Coal-fired boilers are the most common type. A boiler consists of two parts: the "boiler" and the "furnace." The "boiler" is a pressurized component that contains water and steam, and it heats, vaporizes, and separates the water from the steam. The "furnace" is where fuel combustion or other heat energy is released, and it includes combustion equipment, a combustion chamber, a furnace, and heat release flues.

[0003] When a coal-fired boiler generates electricity, the coal burned in its combustion chamber becomes ash and slag, which accumulates at the bottom of the boiler. Most traditional boilers lack a slag-pushing structure, making slag discharge inconvenient, and the accumulated slag is difficult to collect uniformly from the boiler body. Therefore, this invention is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a slag collection device that can collect slag produced by boiler combustion, making it convenient for slag discharge.

[0005] The present invention provides a slag collection device, including a furnace body, a movable door on the side wall of the furnace body, a collection box inside the furnace body, one end of the collection box near the movable door being rotatably connected to the furnace body, a rigging being provided at the end of the collection box away from the movable door, the rigging penetrating the side wall of the furnace body where the movable door is located, and a shovel plate that can move along the bottom wall of the collection box.

[0006] Furthermore, the collection box has arc-shaped grooves on both sides, and the end of the collection box away from the movable door is slidably connected to the arc-shaped groove; the top of the arc-shaped groove has a fixing groove, and the rigging is slidably connected inside the arc-shaped groove and the fixing groove; both the arc-shaped groove and the fixing groove are fixedly connected to the inner wall of the furnace body.

[0007] Furthermore, a through hole is provided between the arc-shaped groove and the fixed groove, a limiting block is slidably connected in the arc-shaped groove, the limiting block is fixedly connected to the outer side wall of the collection box, one end of the rigging is fixedly connected to the limiting block, and the other end of the rigging passes through the through hole and the fixed groove in sequence and extends out of the furnace body.

[0008] Furthermore, a connecting block is provided at the bottom of the collection box near the movable door, and a rotating rod is rotatably connected in the connecting block. The two ends of the rotating rod are respectively fixedly connected to the inner wall of the furnace body.

[0009] Furthermore, the two arc-shaped grooves are symmetrically arranged, and the center of the arc-shaped groove is located on the axis of the rotating rod.

[0010] Furthermore, a mounting block is fixed to one end of the collection box near the movable door, and a screw is rotatably connected to the shovel plate, the screw being rotatably connected to the mounting block.

[0011] Furthermore, a limiting plate is provided at the end of the collection box away from the movable door, and the screw is rotatably connected to the limiting plate.

[0012] Furthermore, the end of the screw away from the shovel plate is provided with a plug rod, which is inserted into the screw.

[0013] Furthermore, the two ends of the shovel plate are attached to the two sides of the collection box, the lower part of the shovel plate is a slope, and the bottom of the slope is attached to the bottom wall of the collection box.

[0014] Furthermore, the collection box has a slag outlet at one end near the movable door.

[0015] In summary, the present invention has the following advantages:

[0016] The technical solution of this invention collects the slag produced by the combustion of the furnace body through a collection box. When cleaning the slag, the movable door of the furnace body is opened, the rigging is pulled, the collection box is rotated, the collection box is tilted, the shovel is moved, and the shovel pushes the slag out of the furnace body. The operation is simple and convenient, and the slag cleaning efficiency is improved. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the furnace body in Embodiment 1 of the present invention;

[0019] Figure 2 This is a schematic diagram of the slag collection device in Embodiment 1 of the present invention;

[0020] Figure 3 This is a schematic diagram showing the connection between the rigging and the arc-shaped groove and the fixing groove in Embodiment 1 of the present invention;

[0021] Figure 4 This is a schematic diagram of the slag collection device in Embodiment 2 of the present invention.

[0022] Explanation of reference numerals in the attached drawings: 1-furnace body, 2-moving door, 3-rigging, 4-arc groove, 5-limiting block, 6-collection box, 7-fixing groove, 8-shovel plate, 9-screw, 10-connecting block, 11-installation block, 12-rotating rod, 13-insertion rod, 14-limiting plate. Detailed Implementation

[0023] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. 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.

[0024] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they may refer to a fixed connection, a detachable connection, or an integral connection; they may refer to a mechanical connection or an electrical connection; they may refer to a direct connection or an indirect connection through an intermediate medium; and they may 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.

[0026] Example 1

[0027] A slag collection device includes a collection box 6, a rigging 3, and a shovel 8, such as Figure 1 and Figure 2 As shown.

[0028] A movable door 2 is installed on the lower part of the right side wall of the furnace body 1. A collection box 6 is installed inside the furnace body 1. The end of the collection box 6 near the movable door 2 is rotatably connected to the furnace body 1. A rigging 3 is provided at the end of the collection box 6 away from the movable door 2. The rigging 3 passes through the right side wall of the furnace body 1. A shovel plate 8 that can move along the bottom wall of the collection box 6 is provided in the collection box 6.

[0029] like Figure 2 As shown, a connecting block 10 is fixedly installed at the bottom right end of the collection box 6. In this embodiment, two symmetrical connecting blocks 10 are provided. A rotating rod 12 is rotatably connected to the connecting block 10. The two ends of the rotating rod 12 are fixedly connected to the two inner walls opposite to the furnace body 1. The rotating rod 12 allows the collection box 6 to tilt, facilitating the rapid discharge of slag.

[0030] The collection box 6 has symmetrically arranged vertical arc-shaped grooves 4 on both sides. The end of the collection box 6 away from the movable door 2 is slidably connected to the arc-shaped groove 4. A horizontally arranged rectangular fixing groove 7 is fixed to the top of the arc-shaped groove 4. In this embodiment, the arc-shaped groove 4 and the fixing groove 7 are an integral structure. The rigging 3 is slidably connected inside the arc-shaped groove 4 and the fixing groove 7. Both the arc-shaped groove 4 and the fixing groove 7 are fixedly connected to the inner wall of the furnace body 1. Figure 2 and Figure 3 As shown, a limiting block 5 is slidably connected in the arc-shaped groove 4, and the end of the limiting block 5 away from the furnace body 1 is fixedly connected to the collection box 6. A through hole is provided between the arc-shaped groove 4 and the fixed groove 7, and the size of the through hole is smaller than the size of the limiting block 5. One end of the rigging 3 is fixedly connected to the top of the limiting block 5, and the other end of the rigging 3 passes through the through hole and the fixed groove 7 in sequence, penetrating the right side wall of the furnace body 1. The center of the arc-shaped groove 4 is located on the axis of the rotating rod 12. By installing limiting blocks 5 on both sides of the collection box 6, when the limiting blocks 5 are dragged by the rigging 3, one end of the collection box 6 can slide under the restriction of the arc-shaped groove 4, making the tilting process of the collection box 6 more stable.

[0031] A mounting block 11 is fixed to the right end of the bottom wall of the collection box 6. The mounting block 11 has a mounting hole. A screw 9 is threadedly connected to the middle of the shovel plate 8. The right end of the screw 9 is rotatably connected to the mounting hole of the mounting block 11. The right end of the screw 9 has a groove, and a rod 13 is inserted into the groove. The rod 13 is used to rotate the screw 9 to prevent the screw 9 from overheating and burning the staff.

[0032] The two ends of the shovel plate 8 are fitted against the two inner sidewalls of the collection box 6. The lower part of the shovel plate 8 is a slope, which is inclined towards the movable door 2, and the bottom of the slope is fitted against the bottom wall of the collection box 6. By setting the shovel plate 8 to fit against the collection box 6, the collection box 6 can restrict the rotation of the shovel plate 8. When the screw 9 rotates, the shovel plate 8 can slide horizontally along the collection box 6. The slope set at the lower part of the shovel plate 8 can more easily shovel the slag and clean it more thoroughly.

[0033] In this embodiment, the collection box 6 is rectangular in shape, with no side plate on the right end, serving as a slag outlet. The rigging 3 in this invention can be made of steel wire rope, chain, etc., and can be fixed on the outer wall of the furnace body 1 or on the ground near the furnace body 1 using conventional techniques in the art, such as fixing bolts. The end of the rigging 3 extending out of the furnace body 1 is connected to the fixing device.

[0034] The working principle of the slag collection device in this embodiment is as follows:

[0035] The ash from the furnace body 1 is collected by the collection box 6 placed inside the furnace body 1. When the ash needs to be removed, the movable door 2 is opened and the rope 3 is pulled. At this time, the collection box 6 will rotate around the rotating rod 12 as the axis, causing the collection box 6 to tilt upward. Then, the insert rod 13 is inserted into the screw 9, and the insert rod 13 is rotated to control the rotation of the screw 9, so that the shovel plate 8 pushes the slag out of the furnace body 1, which facilitates the discharge and cleaning of the slag. After the slag is cleaned up, the screw 9 is rotated in the opposite direction to return the shovel plate 8 to the initial position (the end away from the movable door 2). The rope 3 is released, and the collection box 6 descends to the initial position under the action of gravity.

[0036] Example 2

[0037] A slag collection device, such as Figure 4 As shown, the technical solution of this embodiment is basically the same as that of Embodiment 1, except that: an installation plate 11 is fixedly installed on the right end of the collection box 6, a limiting plate 14 is fixedly installed on the top of the left side wall, and a screw 9 is threadedly connected to the middle of the shovel plate 8. The right end of the screw 9 is rotatably connected to the installation plate 11, and the left end of the screw 9 is rotatably connected to the limiting plate 14. The installation plate 11 and the limiting plate 14 restrict the movement of the shovel plate 8 and prevent the shovel plate 8 from detaching from the collection box 6.

[0038] The slag collection device provided by this invention is installed inside the furnace body and can collect, clean and discharge the slag produced by boiler combustion, thereby improving the slag cleaning efficiency. It is highly practical and applicable not only to boilers in thermal power plants but also to other equipment that produces slag by burning fuels.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A slag collection device, comprising a furnace body (1), wherein the side wall of the furnace body (1) is provided with a movable door (2), characterized in that, The furnace body (1) is provided with a collection box (6) inside. The end of the collection box (6) near the movable door (2) is rotatably connected to the furnace body (1). The end of the collection box (6) away from the movable door (2) is provided with a rigging (3). The rigging (3) passes through the side wall of the furnace body (1) where the movable door (2) is located. The collection box (6) is provided with a shovel plate (8) that can move along the bottom wall of the collection box (6). The collection box (6) has arc-shaped grooves (4) on both sides, and the end of the collection box (6) away from the movable door (2) is slidably connected to the arc-shaped grooves (4); the top of the arc-shaped grooves (4) has a fixing groove (7), and the rigging (3) is slidably connected to the inside of the arc-shaped grooves (4) and the fixing grooves (7); the arc-shaped grooves (4) and the fixing grooves (7) are both fixedly connected to the inner wall of the furnace body (1); A through hole is provided between the arc-shaped groove (4) and the fixed groove (7). A limiting block (5) is slidably connected in the arc-shaped groove (4). The limiting block (5) is fixedly connected to the outer wall of the collection box (6). One end of the rigging (3) is fixedly connected to the limiting block (5). The other end of the rigging (3) passes through the through hole and the fixed groove (7) in sequence and extends out of the furnace body (1). The bottom of the collection box (6) near the movable door (2) is provided with a connecting block (10), and a rotating rod (12) is rotatably connected in the connecting block (10). The two ends of the rotating rod (12) are respectively fixedly connected to the inner wall of the furnace body (1). The collection box (6) is fixed with an installation block (11) at one end near the movable door (2), and a screw (9) is rotatably connected to the shovel plate (8), and the screw (9) is rotatably connected to the installation block (11); The screw (9) has a plug (13) at one end away from the shovel plate (8), and the plug (13) is inserted into the screw (9); The two ends of the shovel (8) are attached to the two sides of the collection box (6), the lower part of the shovel (8) is a slope, and the bottom of the slope is attached to the bottom wall of the collection box (6).

2. The slag collection device according to claim 1, characterized in that, The two arc-shaped grooves (4) are symmetrically arranged, and the center of the arc-shaped grooves (4) is located on the axis of the rotating rod (12).

3. The slag collection device according to claim 1, characterized in that, The collection box (6) is provided with a limiting plate (14) at one end away from the movable door (2), and the screw (9) is rotatably connected to the limiting plate (14).

4. The slag collection device according to claim 1, characterized in that, The collection box (6) has a slag outlet at one end near the movable door (2).

Citation Information

Patent Citations

  • Slag collecting device

    CN220750150U