Coal feeder inlet and outlet gate

Abstract

The present application relates to the technical field of coal feeder of thermal power plant, particularly to a coal feeder inlet and outlet gate, which comprises a protection assembly including a protection shell, a first protection frame arranged on one side of the protection shell, a second protection frame arranged on one side of the protection shell, and a connecting frame arranged on one end of the first protection frame; a driving assembly including a driving member arranged on one end of the connecting frame and a connecting rod arranged on one end of the driving member; and a closing assembly including a first closing plate arranged in the protection shell and a second closing plate arranged in the protection shell. In the present application, the opposite ends of the first closing plate and the second closing plate are inclined, so that the uppermost corners of the first closing plate and the second closing plate are contacted first, and then reset through the track of the rotating groove, thereby avoiding the coal feeder inlet and outlet gate being jammed by coal powder or coal block and unable to be opened or closed due to the small contact surface of the corners.

Description

Technical Field

[0001] This invention relates to the field of coal feeder technology in thermal power plants, and in particular to an inlet and outlet gate for a coal feeder. Background Technology

[0002] The reciprocating sliding fully sealed inlet and outlet gates of a coal feeder in a thermal power plant are components of the feeder, characterized by reciprocating motion and a fully sealed design. These gates are typically used to control coal flow, ensuring that coal is uniformly and continuously conveyed from the coal storage bin to the feeder, and then to the coal mill for further processing. The reciprocating sliding fully sealed design helps reduce coal dust emissions, improves operational safety and environmental friendliness, and also enhances the feeder's operating efficiency and reliability.

[0003] During the closing process of the coal feeder's inlet and outlet gates, coal dust and other debris accumulate at the inlet and outlet gates, causing the gates to jam and preventing them from opening and closing properly. If the gates are not closed tightly, coal dust will leak out from the gaps, which will not only waste materials but may also cause safety accidents such as dust explosions. Summary of the Invention

[0004] In view of the problems existing in the prior art, the present invention is proposed.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a coal feeder inlet and outlet gate, comprising a protective assembly, including a protective shell, a first protective frame disposed on one side of the protective shell, a second protective frame disposed on one side of the protective shell, and a connecting frame disposed at one end of the first protective frame; and,

[0006] The driving assembly includes a driving member disposed at one end of the connecting frame and a connecting rod disposed at one end of the driving member; and,

[0007] The closure assembly includes a first closure plate disposed inside the protective housing and a second closure plate disposed inside the protective housing.

[0008] As a preferred embodiment of the reciprocating sliding fully sealed coal feeder in a thermal power plant according to the present invention, the protective assembly further includes a feed pipe located above the protective shell and a discharge pipe located below the protective shell.

[0009] As a preferred embodiment of the reciprocating sliding fully sealed coal feeder in a thermal power plant according to the present invention, the feed pipe is provided with a feed inlet and the discharge pipe is provided with a discharge outlet.

[0010] As a preferred embodiment of the reciprocating sliding fully sealed coal feeder inlet and outlet gate of the thermal power plant described in this invention, the drive assembly further includes a threaded groove provided in the connecting rod, and a movable ring is provided on the outer side of the connecting rod, which is connected to the threaded groove.

[0011] As a preferred embodiment of the reciprocating sliding fully sealed coal feeder inlet and outlet gate of the thermal power plant described in this invention, the closing assembly further includes a fixed block disposed at one end of the moving ring, a connecting block disposed at one end of the fixed block, a sliding groove disposed at one end of the first closing plate, a closing block disposed at one end of the second closing plate, an operating shaft disposed on the outer side of the first closing plate and the second closing plate, and a rotating groove disposed inside the protective shell.

[0012] As a preferred embodiment of the reciprocating sliding fully sealed coal feeder inlet and outlet gate of the thermal power plant described in this invention, the connecting block and the second closing plate are connected by a rotating shaft.

[0013] As a preferred embodiment of the reciprocating sliding fully sealed coal feeder inlet and outlet gates of the thermal power plant described in this invention, the operating shaft is connected to the rotating groove.

[0014] As a preferred embodiment of the reciprocating sliding fully sealed coal feeder inlet and outlet gate of the thermal power plant according to the present invention, it further includes a swing assembly. The swing assembly includes a fixed cylinder disposed inside the feed pipe. The fixed cylinder has an elastic element inside and an annular groove inside. A sliding disk is disposed below the elastic element. A sliding block is disposed outside the sliding disk. A connecting plate is disposed below the sliding disk. A sliding wheel is disposed inside the connecting plate. A swing fan is disposed outside the fixed cylinder.

[0015] As a preferred embodiment of the reciprocating sliding fully sealed coal feeder inlet and outlet gate of the thermal power plant described in this invention, the sliding block is connected to the annular groove.

[0016] As a preferred embodiment of the inlet and outlet gates of the reciprocating sliding fully sealed coal feeder in a thermal power plant according to the present invention, wherein: the oscillating fan blades are connected to the feed pipe, and the oscillating fan blades are arranged in a ring array on the outside of the fixed cylinder.

[0017] The beneficial effects of the present invention are as follows: by tilting the opposite ends of the first closing plate and the second closing plate, the uppermost edges of the first closing plate and the second closing plate first come into contact, and then are reset by the track of the rotating groove. Thus, the contact surface of the edges is small, which avoids the inlet and outlet gates from being blocked by coal powder or coal blocks and thus unable to open or close. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 This is a cross-sectional view of the overall structure in this invention.

[0021] Figure 3 This is a schematic diagram of the protective component structure in this invention.

[0022] Figure 4 This is a schematic diagram of the closed component structure in this invention.

[0023] Figure 5 This is a schematic diagram of the swing component structure in this invention.

[0024] Figure 6 This is a cross-sectional view of the swing component in this invention.

[0025] Reference numerals: 100, Protective component; 101, Protective shell; 101a, First protective frame; 101a-1, Connecting frame; 101b, Second protective frame; 102, Feed pipe; 103, Discharge pipe; 200, Drive component; 201, Drive component; 202, Connecting rod; 202a, Moving ring; 300, Closing component; 301, Fixing block; 301a, Connecting block; 302, First closing plate; 302a, Sliding groove; 302b, Operating shaft; 303, Second closing plate; 303a, Closing block; 304, Rotating groove; 400, Swing component; 401, Fixing cylinder; 401a, Elastic element; 401b, Annular groove; 402, Sliding disc; 402a, Sliding block; 403, Connecting plate; 403a, Sliding wheel; 404, Swinging fan blade. Detailed Implementation

[0026] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0029] Example 1, referring to Figures 1 to 6 This is the first embodiment of the present invention, which provides a coal feeder inlet and outlet gate capable of blocking coal powder. It includes a protective assembly 100, comprising a protective shell 101, a first protective frame 101a disposed on one side of the protective shell 101, a second protective frame 101b disposed on one side of the protective shell 101, and a connecting frame 101a-1 disposed at one end of the first protective frame 101a; and...

[0030] The drive assembly 200 includes a drive member 201 disposed at one end of the connecting frame 101a-1 and a connecting rod 202 disposed at one end of the drive member 201; and,

[0031] The closing assembly 300 includes a first closing plate 302 disposed inside the protective housing 101 and a second closing plate 303 disposed inside the protective housing 101.

[0032] The protective assembly 100 also includes a feed pipe 102 located above the protective housing 101, and a discharge pipe 103 located below the protective housing 101.

[0033] The feed pipe 102 has a feed inlet inside, and the discharge pipe 103 has a discharge outlet inside. Through the cavity channel formed between the feed pipe 102 and the discharge pipe 103, the coal powder falls from the feed pipe 102 into the coal feeder through the discharge pipe 103.

[0034] The drive assembly 200 also includes a threaded groove provided in the connecting rod 202. A movable ring 202a 201a is provided on the outer side of the connecting rod 202 and is connected to the threaded groove. Through the threaded groove provided on the outer side of the connecting rod 202, the connecting rod 202 drives the connecting rod 202 and the subsequent first closing plate 302 and second closing plate 303 to open and close.

[0035] Specifically, in the initial state, the first closing plate 302 and the second closing plate 303 are located inside the first protective frame 101a and the second protective frame 101b, respectively. The chamber passage between the feed pipe 102 and the discharge pipe 103 is not blocked. When it is necessary to drop coal powder into the coal feeder, the coal powder falls from the feed pipe 102 to the discharge pipe 103 into the coal feeder through the chamber passage formed between the feed pipe 102 and the discharge pipe 103. When the coal powder falls to the expected storage amount, the drive component 200 is driven, which will drive the subsequent closing component 300 to move. When the closing component 300 moves to a certain distance, at this time, the closing component 300 is inside the protective shell 101 and is located between the feed pipe 102 and the discharge pipe 103, covering the chamber between the feed pipe 102 and the discharge pipe 103, blocking the chamber between the feed pipe 102 and the discharge pipe 103, thereby blocking the falling of coal powder.

[0036] Example 2, refer to Figures 1-6 This is the second embodiment of the present invention. This embodiment provides a coal feeder inlet and outlet gate, which can prevent the inlet and outlet gate from being jammed by coal powder or coal blocks when closed, thus preventing it from opening and closing completely. It includes a closing component 300 and a fixing block 301 located at one end of the moving ring 202a. One end of the fixing block 301 is provided with a connecting block 301a. One end of the first closing plate 302 is provided with a sliding groove 302a. One end of the second closing plate 303 is provided with a closing block 303a. An operating shaft 302b is provided on the outer side of the first closing plate 302 and the second closing plate 303. The inside of the protective shell 101 is provided with a rotating groove 304.

[0037] The connecting block 301a is connected to the second closing plate 303 via a rotating shaft. The rotating shaft connecting the connecting block 301a to the first closing plate 302 and the second closing plate 303 allows the first closing plate 302 and the second closing plate 303 to be offset at an angle when passing through the rotating groove 304.

[0038] The operating shaft 302b is connected to the rotating groove 304. The operating shaft 302b slides in the preset track of the rotating groove 304, so that the operating shaft 302b drives the first closing plate 302 and the second closing plate 303 to change.

[0039] Specifically, in the initial state, the first closing plate 302 is open on both sides of the second closing plate 303, and is located on both sides of the feed pipe 102 and the discharge pipe 103. At this time, pulverized coal falls into the coal feeder for processing through the chamber channel formed by the inlet of the feed pipe 102 and the outlet of the discharge pipe 103. When the pulverized coal falls to a preset storage level and needs to be stopped from falling further, the drive component 201 is driven. The drive component 201 drives the connecting rod 202 to rotate. During the rotation of the connecting rod 202, the moving rings 202a on both sides move towards each other. Then, the moving rings 202a drive the fixed block 301 and the connecting block 301a to move towards each other. The connecting block 301a drives the first closing plate. The first closing plate 302 and the second closing plate 303 move towards each other. When the first closing plate 302 and the second closing plate 303 slide a certain distance, the operating shafts 302b on both sides of the first closing plate 302 will rotate on the rotating shaft in the connecting block 301a through the curved track of the rotating groove 304. This causes the opposite ends of the first closing plate 302 and the second closing plate 303 to tilt, and the uppermost corners of the first closing plate 302 and the second closing plate 303 to contact first, and then reset through the track of the rotating groove 304. Thus, the contact surface of the corners is small, which avoids the inlet and outlet gates from being blocked by coal powder or coal blocks and unable to open or close.

[0040] Example 3, referring to Figures 1-6 This is the third embodiment of the present invention. This embodiment provides a coal feeder inlet and outlet gate that can prevent material feeding from being obstructed due to coal block accumulation and compression after the gate is closed. It also includes a swing assembly 400. The swing assembly 400 includes a fixed cylinder 401 disposed inside the feed pipe 102. The fixed cylinder 401 has an elastic element 401a inside and an annular groove 401b inside. A sliding disk 402 is disposed below the elastic element 401a. A sliding block 402a is disposed outside the sliding disk 402. A connecting plate 403 is disposed below the sliding disk 402. A sliding wheel 403a is disposed inside the connecting plate 403. A swing fan blade 404 is disposed outside the fixed cylinder 401.

[0041] The sliding block 402a is connected to the annular groove 401b. Through the connection between the sliding block 402a and the annular groove 401b, the fixed cylinder 401 is driven to rotate as the sliding block 402a moves upward through the annular groove of the annular groove 401b.

[0042] The oscillating fan blades 404 are connected to the feed pipe 102, and the oscillating fan blades 404 are arranged in a ring array on the outside of the fixed cylinder 401.

[0043] Specifically, in the initial state, the elastic element 401a is in the reset state, the sliding disc 402 and the sliding block 402a are located inside the lower part of the fixed cylinder 401, and the connecting plate 403 and the sliding wheel 403a are located outside the fixed cylinder 401. When the coal powder falls to the preset storage level and needs to be stopped from falling further, the first closing plate 302 and the second closing plate 303 move inward. When the first closing plate 302 moves inward to a certain distance, the sliding groove 302a at one end of the first closing plate 302 will contact the sliding wheel 403a, and through the inclined angle of the sliding groove 302a, the sliding wheel 403a will be lifted, causing the sliding wheel 403a to move upward. Then, the sliding wheel 403a drives the connecting plate 403 to move upward. 03 drives the sliding disk 402 to move upward. During the upward movement of the sliding disk 402, the sliding disk 402 squeezes the elastic element 401a, compressing it. Then, the sliding disk 402 drives the sliding block 402a to move upward. At this time, the sliding disk 402 and the sliding block 402a are located inside the fixed cylinder 401 and above the compressed elastic element 401a. During the upward movement of the sliding block 402a, the sliding block 402a will slide in the annular groove 401b. Through the annular groove of the annular groove 401b, the sliding block 402a drives the fixed cylinder 401 to rotate. Then, the fixed cylinder 401 drives the swing fan blade 404 to rotate, thereby the swing fan blade 404 dislodging the coal block that is stuck due to accumulation and compression, so that it falls smoothly.

[0044] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0045] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the currently considered best mode for carrying out the invention, or those features that are not relevant to implementing the invention) may be omitted.

[0046] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A coal feeder inlet and outlet gate, characterized in that: include, The protective assembly (100) includes a protective shell (101), a first protective frame (101a) disposed on one side of the protective shell (101), a second protective frame (101b) disposed on one side of the protective shell (101), and a connecting frame (101a-1) disposed at one end of the first protective frame (101a); and, The drive assembly (200) includes a drive member (201) disposed at one end of the connecting frame (101a-1) and a connecting rod (202) disposed at one end of the drive member (201); and, The closing assembly (300) includes a first closing plate (302) disposed inside the protective shell (101) and a second closing plate (303) disposed inside the protective shell (101). The protective assembly (100) also includes a feed pipe (102) located above the protective shell (101), and a discharge pipe (103) located below the protective shell (101). The drive assembly (200) also includes a threaded groove provided in the connecting rod (202), and a movable ring (202a) is provided on the outer side of the connecting rod (202), the movable ring (202a) being connected to the threaded groove; The closing assembly (300) further includes a fixing block (301) disposed at one end of the moving ring (202a), a connecting block (301a) disposed at one end of the fixing block (301), a sliding groove (302a) disposed at one end of the first closing plate (302), a closing block (303a) disposed at one end of the second closing plate (303), an operating shaft (302b) disposed on the outer side of the first closing plate (302) and the second closing plate (303), and a rotating groove (304) disposed inside the protective shell (101). The connecting block (301a) and the second closing plate (303) are connected by a rotating shaft; The operating shaft (302b) is connected to the rotating groove (304); It also includes a swing assembly (400), which includes a fixed cylinder (401) disposed inside the feed pipe (102), an elastic element (401a) disposed inside the fixed cylinder (401), an annular groove (401b) being formed inside the fixed cylinder (401), a sliding disk (402) being disposed below the elastic element (401a), a sliding block (402a) being disposed outside the sliding disk (402), a connecting plate (403) being disposed below the sliding disk (402), a sliding wheel (403a) being disposed inside the connecting plate (403), and a swing fan blade (404) being disposed outside the fixed cylinder (401). The sliding block (402a) is connected to the annular groove (401b).

2. The feeder inlet and outlet gates as described in claim 1, characterized in that: The feed pipe (102) has a feed inlet inside, and the discharge pipe (103) has a discharge outlet inside.

3. The feeder inlet and outlet gates as described in claim 2, characterized in that: The oscillating fan blades (404) are connected to the feed pipe (102), and the oscillating fan blades (404) are arranged in a ring array on the outside of the fixed cylinder (401).

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