Combustion-supporting device for coal-fired boiler

Abstract

The present application relates to the technical field of coal-fired boiler, especially to a combustion-supporting device for coal-fired boiler, comprising a main component, a screening component connected with the main component, and a partition plate arranged in the screening component; a reciprocating component, comprising a driving component arranged in the screening component, a transmission component arranged at the end of the driving component, and a lifting component connected with the transmission component, the driving component drives the transmission component to rotate, and the lifting component swings left and right under the rotation of the transmission component, and the lifting component slides up and down against the screening component, so that the coal is screened under the shaking of the screening component, and the coal that is too large to pass through the screen is crushed by the crushing device and then transferred into the main component for combustion, thereby avoiding the incomplete combustion of coal due to different sizes of coal, and improving the efficiency of coal combustion.

Description

Technical Field

[0001] This invention relates to the field of coal-fired boiler technology, and in particular to a combustion-supporting device for coal-fired boilers. Background Technology

[0002] A coal-fired boiler converts the energy of coal into other forms of energy by burning coal.

[0003] However, during the combustion process of coal in a coal-fired boiler, the coal particles are of different sizes, which can lead to some coal not being fully burned, resulting in coal waste. In addition, larger coal particles are less likely to burn than smaller coal particles, and when there is too much large coal in a coal-fired boiler, the combustion efficiency will decrease. Summary of the Invention

[0004] In view of the problem of incomplete combustion of large amounts of coal in the above-mentioned or existing technologies, the present invention is proposed.

[0005] Therefore, the object of the present invention is to provide a combustion aid device for a coal-fired boiler.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: including,

[0007] The main component includes a body assembly, a screening assembly connected to the body assembly, and a partition disposed within the screening assembly;

[0008] The reciprocating component includes a drive assembly disposed within the screening assembly, a transmission assembly disposed at the end of the drive assembly, and a lifting assembly connected to the transmission assembly.

[0009] As a preferred embodiment of the combustion-supporting device for coal-fired boilers of the present invention, the main body component includes a coal-fired boiler body and a spiral auger disposed on the side of the coal-fired boiler body.

[0010] As a preferred embodiment of the combustion-supporting device for coal-fired boilers of the present invention, the screening component includes a combustion-supporting box disposed at the end of the spiral auger, a chute opened on the inner wall of the combustion-supporting box, a screen plate disposed in the combustion-supporting box, a spring disposed in the chute, and a shielding cloth disposed at the chute.

[0011] The partition is located inside the combustion chamber.

[0012] As a preferred embodiment of the combustion-supporting device for coal-fired boilers of the present invention, the driving assembly includes a driving rod connected to the combustion-supporting box, a first inclined rod disposed at the end of the driving rod, and a rotating rod disposed at the end of the first inclined rod.

[0013] As a preferred embodiment of the combustion-supporting device for coal-fired boilers of the present invention, the transmission assembly includes a second inclined rod disposed at the end of the rotating rod, a connecting rod disposed at the end of the second inclined rod, and a third inclined rod disposed at the end of the connecting rod.

[0014] As a preferred embodiment of the combustion-supporting device for coal-fired boilers of the present invention, the lifting assembly includes an L-shaped swing rod connected to the inclined rod, a movable rod disposed on the side of the L-shaped swing rod, and a stop block disposed at the end of the movable rod;

[0015] The movable rod abuts against the partition, and the abutment block abuts against the sieve plate.

[0016] As a preferred embodiment of the combustion-supporting device for coal-fired boilers of the present invention, it further includes a crushing component;

[0017] It includes a conversion component disposed within the partition, an output component disposed outside the conversion component, and a clamping component disposed outside the output component.

[0018] As a preferred embodiment of the combustion aid device for coal-fired boilers of the present invention, wherein: a conversion slot is provided on the outside of the partition plate;

[0019] The conversion assembly includes an output block disposed within the conversion slot, an opening outside the output block, a spiral groove rod disposed within the opening in the conversion slot, and a lever disposed within the spiral groove rod.

[0020] As a preferred embodiment of the combustion aid device for coal-fired boilers of the present invention, an output slot is provided above the conversion slot on the outside of the partition plate;

[0021] The output component includes an output rod disposed within the output slot, a folding rod disposed outside the output rod, a movable slot formed on the folding rod, and a connecting rod disposed within the movable slot.

[0022] As a preferred embodiment of the combustion-supporting device for coal-fired boilers of the present invention, the clamping assembly includes an impact plate disposed at the end of the connecting rod and a crushing protrusion disposed outside the impact plate.

[0023] The beneficial effects of the combustion aid device for coal-fired boilers of the present invention are as follows: First, the coal blocks are conveyed to the screening assembly. At this time, the drive assembly drives the transmission assembly to rotate. Simultaneously, the lifting assembly, under the rotation of the transmission assembly, realizes a reciprocating left-right swinging motion. At this time, the lifting assembly will resist the upward and downward sliding of the screening assembly, so that the coal blocks are screened under the shaking of the screening assembly. Coal blocks that are too large to pass through the screen plate will be crushed by the crushing device and then conveyed to the main assembly for combustion, avoiding incomplete combustion of coal due to different coal sizes, thereby improving the efficiency of coal combustion. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. 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.

[0025] Figure 1 This is a schematic diagram of the overall combustion-supporting device for a coal-fired boiler.

[0026] Figure 2 This is a schematic diagram of the internal structure of the combustion chamber of a combustion aid device for a coal-fired boiler.

[0027] Figure 3 This is a schematic diagram of the cross-sectional structure of the combustion chamber of a combustion aid device for a coal-fired boiler.

[0028] Figure 4 This is a schematic diagram of the reciprocating component structure of a combustion aid device for a coal-fired boiler.

[0029] Figure 5 This is a schematic diagram of the crushing component of a combustion aid device for a coal-fired boiler. Detailed Implementation

[0030] 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.

[0031] 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.

[0032] 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.

[0033] Example 1, referring to Figures 1 to 2This is the first embodiment of the present invention, which provides a combustion aid device for a coal-fired boiler, comprising: a main body component 100, including a body assembly 101, a screening assembly 102 connected to the body assembly 101, and a partition 103 disposed within the screening assembly 102; and a reciprocating component 200, including a drive assembly 201 disposed within the screening assembly 102, a transmission assembly 202 disposed at the end of the drive assembly 201, and a lifting assembly 203 connected to the transmission assembly 202. The device first transfers coal blocks into the screening assembly 102, and then, through the drive assembly... The moving component 201 drives the transmission component 202 to rotate. At the same time, the lifting component 203 will swing back and forth under the rotation of the transmission component 202. At this time, the lifting component 203 will slide up and down against the screening component 102, so that the coal blocks are screened under the shaking of the screening component 102. Coal blocks that are too large to pass through the screen plate 102c will be crushed by the crushing device and then transported to the main component 101 for combustion, so as to avoid incomplete combustion of coal due to different coal sizes, thereby improving the efficiency of coal combustion.

[0034] Example 2, refer to Figures 1-4 This is the second embodiment of the present invention. Unlike the previous embodiment, the main body assembly 101 includes a coal-fired boiler body 101a and a spiral auger 101b disposed on the side of the coal-fired boiler body 101a. The screening assembly 102 includes a combustion chamber 102a disposed at the end of the spiral auger 101b, a chute 102b opened on the inner wall of the combustion chamber 102a, a screen plate 102c disposed in the combustion chamber 102a, a spring 102d disposed in the chute 102b, and a shielding cloth 102e disposed at the chute 102b. The partition plate 103 is disposed in the combustion chamber 102a. The spiral auger 101b is disposed on the side of the coal-fired boiler body 101a. The end of the spiral auger 101b is connected to the combustion chamber 102a. In this way, after the coal blocks are screened by the combustion chamber 102a, they will be transported into the coal-fired boiler body 101a for combustion by the spiral auger 101b.

[0035] The combustion chamber 102a is internally equipped with a partition 103. Under the action of the partition 103, the combustion chamber 102a is divided into a screening chamber Q1 and an equipment chamber Q2, and the two chambers are connected. The combustion chamber 102a is equipped with a screen plate 102c in the screening chamber Q1. The screen plate 102c has multiple screening holes and a protrusion at the end of the screen plate 102c. The inner wall of the combustion chamber 102a is provided with a sliding groove 102b corresponding to the position of the protrusion of the screen plate 102c. The protrusion of the screen plate 102c is slidably connected in the sliding groove 102b. At the same time, a spring 102d is fixedly connected between the protrusion of the screen plate 102c and the inner wall of the sliding groove 102b. A shielding cloth 102e is also provided between the protrusion of the screen plate 102c and the inner wall of the sliding groove 102b.

[0036] When coal blocks are fed into the combustion chamber 102a, larger coal blocks are screened out through the screening holes on the surface of the screen plate 102c. The reciprocating component 200 then pushes against the screen plate 102c, causing it to slide within the combustion chamber 102a. Under the action of the spring 102d, the screen plate 102c slides up and down within the combustion chamber 102a, creating a shaking effect. This not only allows for rapid screening of coal blocks but also prevents coal blocks from clogging the screening holes. During the up-and-down shaking process of the screen plate 102c, the shielding cloth 102e at the chute 102b position prevents coal blocks from entering the chute 102b, thus preventing the screen plate 102c from sliding within the chute 102b and achieving the purpose of screening coal blocks.

[0037] Furthermore, the drive assembly 201 includes a drive rod 201a connected to the combustion chamber 102a, a first inclined rod 201b located at the end of the drive rod 201a, and a rotating rod 201c located at the end of the first inclined rod 201b. The transmission assembly 202 includes a second inclined rod 202a located at the end of the rotating rod 201c, a connecting rod 202b located at the end of the second inclined rod 202a, and a third inclined rod 202c located at the end of the connecting rod 202b. The combustion chamber 102a is rotatably connected to the drive rod 201a within the equipment cavity Q2. The end of the drive rod 201a is fixedly connected to the first inclined rod 201b, and the end of the first inclined rod 201b is rotatably connected to the rotating rod 201c. The end of 1c is rotatably connected to the second inclined rod 202a. The end of the second inclined rod 202a is fixedly connected to the third connecting rod 202b. The end of the third connecting rod 202b is fixedly connected to the third inclined rod 202c. The first inclined rod 201b is tilted at a certain angle with the driving rod 201a as the center. In this way, when the power device (such as a motor) drives the driving rod 201a to rotate, the first inclined rod 201b will rotate with the driving rod 201a as the center. At the same time, the other end of the first inclined rod 201b will drive the second inclined rod 202a to move in an elliptical trajectory with the driving rod 201a as the center. The setting of the rotating rod 201c ensures that the first inclined rod 201b will not hinder the second inclined rod 202a during the rotation.

[0038] Furthermore, the lifting assembly 203 includes an L-shaped swing rod 203a connected to the inclined rod 202c, a movable rod 203b located on the side of the L-shaped swing rod 203a, and a stop block 203c located at the end of the movable rod 203b; wherein, the movable rod 203b abuts against the partition plate 103, and the stop block 203c abuts against the sieve plate 102c, the end of the inclined rod 202c is rotatably connected to the L-shaped swing rod 203a, the end of the L-shaped swing rod 203a is rotatably connected to the movable rod 203b, the movable rod 203b is rotatably connected to the partition plate 103, and the movable rod 203b passes through the partition plate 103 and is located under the sieve plate 102c; in addition, the portion of the movable rod 203b located under the sieve plate 102c on the outer side of the rod body is provided with the stop block 203c;

[0039] Because the movable rod 203b positions the L-shaped swing rod 203a, when the first inclined rod 201b rotates to the side in the first direction, the second inclined rod 202a, the connecting rod 202b, and the third inclined rod 202c will move in the first direction. Simultaneously, the third inclined rod 202c, relative to its stationary state, will rise a certain distance. At this point, the third inclined rod 202c will cause the end connected to the L-shaped swing rod 203a to slide upwards. Because the movable rod 203b positions the L-shaped swing rod 203a, the L-shaped swing rod 203a will rotate around the movable rod 203b as its center. When the inclined rod 201b rotates to a position symmetrical to the upward position of the inclined rod 202c, the inclined rod 202c, being relatively stationary, will drive the L-shaped swing rod 203a to rotate downward around the movable rod 203b. The connecting rod 202b and the inclined rod 202c will follow the rotation trajectory of the inclined rod 202a. During this process, the L-shaped swing rod 203a will drive the movable rod 203b to swing back and forth, and at the same time, it will also drive the abutment blocks 203c on both sides to repeatedly abut against the screen plate 102c, thereby achieving the purpose of shaking the screen plate 102c to screen coal blocks.

[0040] The rest of the structure is the same as in Example 1.

[0041] Example 3, referring to Figures 1-5 This is the third embodiment of the present invention. Unlike the previous embodiment, the above-mentioned crushing device refers to the crushing component 300, which also includes the crushing component 300. It includes a conversion component 301 disposed in the partition 103, an output component 302 disposed outside the conversion component 301, and a clamping component 303 disposed outside the output component 302. When the screen plate 102c slides up and down in the combustion box 102a, the conversion component 301 can convert the sliding force into a rotational force and transmit it to the output component 302. At this time, the output component 302 will move the clamping component 303 to crush the larger coal blocks on the screen plate 102c.

[0042] Specifically, a conversion groove 103a is provided on the outside of the partition 103; the conversion assembly 301 includes an output block 301a disposed in the conversion groove 103a, an opening 301b opened outside the output block 301a, a spiral groove rod 301c disposed in the conversion groove 103a and located in the opening 301b, and a lever 301d disposed in the spiral groove rod 301c. A pair of conversion grooves 103a are provided on the outer side of the partition 103, and a spiral groove rod 301c is rotatably connected in each of the pair of conversion grooves 103a. The spiral grooves outside the pair of spiral groove rods 301c are arranged in opposite directions. When the lever 301d moves the spiral groove rod 301c to rotate, the pair of spiral groove rods 301c rotate relative to each other, thus driving the output assembly 302 to rotate relative to each other. The lever 301d is movably connected in the spiral groove outside the spiral groove rod 301c. An output block 301a is slidably connected inside 103a, and the output block 301a is connected to the screen plate 102c. This makes the sliding of the screen plate 102c within the combustion chamber 102a more stable, and at the same time, the screen plate 102c can transmit the force to the output block 301a. An opening 301b is provided on the outside of the output block 301a, and the opening 301b matches the spiral groove rod 301c. Meanwhile, the lever 301d is fixedly connected to the inner wall of the opening 301b. The lever 301d will slide within the spiral groove rod 301c, and the spiral groove rod 301c will also rotate relative to its outer spiral groove trajectory. Furthermore, a shielding cloth 102e is provided between the conversion groove 103a and the output block 301a, which can prevent coal blocks in the combustion chamber 102a from entering the conversion groove 103a and affecting the rotation of the spiral groove rod 301c, thereby realizing the conversion of the force.

[0043] Furthermore, an output slot 103b is provided above the conversion slot 103a on the outside of the partition 103; the output assembly 302 includes an output rod 302a disposed in the output slot 103b, a folding rod 302b disposed outside the output rod 302a, a movable slot 302c disposed on the folding rod 302b, and a connecting rod 302d disposed in the movable slot 302c; the clamping assembly 303 includes an impact plate 303a disposed at the end of the connecting rod 302d, and a crushing protrusion 303b disposed outside the impact plate 303a; the output slot 103b is provided above the conversion slot 103a on the partition 103; the output rod 302a is rotatably connected in the output slot 103b; the end of the output rod 302a passes through the output slot 103b and is connected to the spiral groove rod 301c; the folding rod 302b is fixedly connected to the outside of the output rod 302a; the folding rod 302b consists of a crossbar A1 and a tilting rod. Composed of A2, this configuration allows the bent rods 302b to fit together, enabling the impact plate 303a and the crushing protrusions 303b to better crush coal. The bent rods A2 have an external movable groove 302c, within which a connecting rod 302d is movably connected. The end of the connecting rod 302d is fixedly connected to the impact plate 303a. Multiple crushing protrusions 303b are located on the opposite side of the impact plate 303a. As the bent rods 302b rotate with the output rod 302a, the inner wall of the movable groove 302c causes the connecting rod 302d to move relative to the impact plate 303a. Simultaneously, the movable groove 302c provides a travel margin between the bent rods 302b and the connecting rod 302d, preventing the bent rods 302b from hindering the connecting rod 302d during rotation, thus achieving force conversion and transmission.

[0044] Furthermore, the top of the connecting rod 302d is higher than the height of the output slot 103b. As the screen plate 102c slides in the combustion chamber 102a, the impact plate 303a will also slide along with the screen plate 102c, and the connecting rod 302d will also move upward in the movable slot 302c. At the same time, the impact plate 303a will not come into contact with the bending rod 302b. Thus, when the screen plate 102c slides in the combustion chamber 102a, the impact plate 303a will not hinder the screen plate 102c, and it can also crush large coal pieces on the screen plate 102c.

[0045] During the rotation of the spiral groove rod 301c, the output rod 302a will rotate accordingly. At this time, the folding rod 302b will rotate around the output rod 302a. Simultaneously, the inner wall of the movable groove 302c abuts against the connecting rod 302d, causing a pair of impact plates 303a to move relative to each other. Meanwhile, the coal blocks are crushed by the crushing protrusions 303b on their outer sides, and then filtered through the vibrating screen plate 102c, thus achieving the purpose of crushing large coal blocks.

[0046] Larger coal pieces are broken down into smaller pieces and then transported into the coal-fired boiler body 101a. The smaller coal pieces have a larger surface area and a wider contact area with air, allowing for more complete contact with oxygen and thus improving combustion efficiency. At the same time, the larger surface area of ​​the smaller coal pieces during combustion results in more uniform combustion and reduces the possibility of slagging.

[0047] In addition, small pieces of coal are easier to ignite due to their large contact area, reducing ignition time. When small pieces of coal burn, their small size allows for faster heat transfer and release of heat more quickly.

[0048] The rest of the structure is the same as in Example 2.

[0049] 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.

[0050] 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 best mode of carrying out the invention as currently considered, or those features that are not relevant to implementing the invention) may be omitted.

[0051] 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.

[0052] 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 combustion-supporting device for a coal-fired boiler, characterized in that: include, The main component (100) includes a body assembly (101), a screening assembly (102) connected to the body assembly (101), and a partition (103) disposed in the screening assembly (102). The reciprocating component (200) includes a drive component (201) disposed in the screening component (102), a transmission component (202) disposed at the end of the drive component (201), and a lifting component (203) connected to the transmission component (202). The crushing component (300) includes a conversion assembly (301) disposed within the partition (103), an output assembly (302) disposed outside the conversion assembly (301), and a clamping assembly (303) disposed outside the output assembly (302); a conversion groove (103a) is provided on the outside of the partition (103). The conversion assembly (301) includes an output block (301a) disposed within the conversion slot (103a), an opening (301b) opened outside the output block (301a), a spiral groove rod (301c) disposed within the opening (301b) in the conversion slot (103a), and a lever (301d) disposed within the spiral groove rod (301c); an output slot (103b) is provided above the conversion slot (103a) outside the partition plate (103); The output component (302) includes an output rod (302a) disposed in the output slot (103b), a folding rod (302b) disposed outside the output rod (302a), a movable slot (302c) opened on the folding rod (302b), and a connecting rod (302d) disposed in the movable slot (302c). The clamping assembly (303) includes an impact plate (303a) disposed at the end of the connecting rod (302d) and a crushing protrusion (303b) disposed outside the impact plate (303a).

2. The combustion aid device for a coal-fired boiler as described in claim 1, characterized in that: The main body assembly (101) includes a coal-fired boiler body (101a) and a spiral auger (101b) disposed on the side of the coal-fired boiler body (101a).

3. The combustion aid device for a coal-fired boiler as described in claim 2, characterized in that: The screening assembly (102) includes a combustion chamber (102a) located at the end of the auger (101b), a groove (102b) opened on the inner wall of the combustion chamber (102a), a screen plate (102c) located in the combustion chamber (102a), a spring (102d) located in the groove (102b), and a shielding cloth (102e) located at the groove (102b). The partition (103) is located inside the combustion chamber (102a).

4. The combustion aid device for a coal-fired boiler as described in claim 3, characterized in that: The drive assembly (201) includes a drive rod (201a) connected to the combustion chamber (102a), a first inclined rod (201b) located at the end of the drive rod (201a), and a rotating rod (201c) located at the end of the first inclined rod (201b).

5. The combustion aid device for a coal-fired boiler as described in claim 4, characterized in that: The transmission assembly (202) includes a second inclined rod (202a) disposed at the end of the rotating rod (201c), a connecting rod (202b) disposed at the end of the second inclined rod (202a), and a third inclined rod (202c) disposed at the end of the connecting rod (202b).

6. The combustion aid device for a coal-fired boiler as described in claim 5, characterized in that: The lifting assembly (203) includes an L-shaped swing rod (203a) connected to the inclined rod three (202c), a movable rod (203b) disposed on the side of the L-shaped swing rod (203a), and a stop block (203c) disposed at the end of the movable rod (203b). The movable rod (203b) abuts against the partition plate (103), and the abutment block (203c) abuts against the sieve plate (102c).

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