Coal bunker having high stability

Abstract

The present invention relates to the technical field of boilers in thermal power plants, in particular to a coal bunker having high stability. The coal bunker comprises: a bearing assembly, which comprises an outer cylinder and a first discharge port formed in an outer wall of the outer cylinder; and a bunker-dividing assembly, which comprises an inner cylinder rotationally arranged in the outer cylinder, two second discharge ports that are formed in and penetrate an outer wall of the inner cylinder and are symmetrically distributed, and a partition plate arranged in the inner cylinder and configured to divide an inner cavity of the inner cylinder into two coal storage cavities. The coal bunker provided in the present invention continues to use the design in the prior art in which a coal bunker is divided into two coal storage cavities by a partition plate; however, unlike the prior art, after coal on one side of the coal bunker is used up, the configured inner cylinder rotates under the impact of its own gravity, so that the whole coal bunker remains in a balanced state, thereby avoiding many disadvantages caused by structural unbalanced loading, and effectively solving the problems present in the prior art.

Description

Coal bunker with high stability TECHNICAL FIELD

[0001] The present application relates to the technical field of power plant boilers, in particular to a coal bunker with high stability. BACKGROUND

[0002] The blending combustion technology is a process of completing power generation by blending several different kinds of coal with different properties according to a certain proportion when the coal is burned in a boiler. The basic principle is to use the composition of different coal types to blend and mix according to requirements, so that the final blended coal meets or approaches the design coal requirements of the boiler in performance indicators, so as to make the boiler efficient, powerful, and environmentally friendly.

[0003] Generally, the boiler raw coal bunker is equipped with one coal mill and one coal feeder, and one raw coal bunker only stores one kind of coal. In order to save energy and improve efficiency, the technical personnel improves the raw coal bunker by dividing the inside of the raw coal bunker into two spaces by a partition, one side of which is used to store high-quality coal and the other side is used to store low-quality coal. During the peak power consumption period, high-quality coal is transported through the raw coal bunker, and conversely, during the period when the power demand is not very large, low-quality coal is transported through the raw coal bunker.

[0004] However, the above-mentioned method has certain disadvantages, especially when the coal on one side of the coal bunker is depleted and the coal on the other side is fully loaded, which will cause the coal bunker to be structurally unbalanced. This unbalanced load may cause the load-bearing structure of the coal bunker (such as the support, wall, and bottom plate) to be subjected to uneven force, increasing the risk of structural instability, and the imbalance of the weight of the coal bunker may also cause the foundation or base to bear uneven pressure, which may cause uneven settlement of the foundation over a long period of time, affecting the stability of the coal bunker.

[0005] Furthermore, since the inside of the raw coal bunker is divided into two spaces by a partition, if the coal on one side is depleted, the coal on both sides of the partition in the coal bunker will be different in weight, which may cause stress concentration of the partition and the connecting part, increasing the risk of bending and breaking of the partition.

[0006] Therefore, we propose a coal bunker with a partition and high stability.

[0007] SUMMARY

[0008] In view of the problems existing in the prior art, the present application is proposed.

[0009] To solve the above technical problems, the present application provides the following technical scheme: a coal bunker with high stability, comprising a bearing assembly, a first discharge opening is arranged on the outer wall of an outer cylinder of the bearing assembly; a bunker assembly, an inner cylinder is rotatably arranged in the outer cylinder, two second discharge openings are arranged on the outer wall of the inner cylinder and symmetrically distributed, a partition plate is arranged in the inner cylinder and is used for dividing the inner cavity of the inner cylinder into two coal storage cavities; wherein, the same weight of coal is input into the two coal storage cavities, and the partition plate is in a vertical state; when the coal in one side of the coal storage cavity is consumed, the inner cylinder will be rotated under the influence of gravity, and the bearing assembly is ensured to be in a balanced state.

[0010] As a preferred scheme of the coal bunker with high stability, the end of the outer cylinder is provided with an adaptive groove, and the adaptive groove comprises a movable end and a first buffer end and a second buffer end arranged in the movable end respectively.

[0011] As a preferred scheme of the coal bunker with high stability, the coal bunker further comprises a sealing assembly movably arranged in the adaptive groove, the sealing assembly comprises a limiting plate and a sealing plate movably connected with one end of the limiting plate, and a torsional spring is arranged at the connection between the limiting plate and the sealing plate.

[0012] As a preferred scheme of the coal bunker with high stability, the outer wall of the inner cylinder is provided with a ratchet, the outer wall of the limiting plate is provided with a limiting protrusion engaged with the ratchet, and one end of the sealing plate extends to the outside of the outer cylinder and is provided with a handle.

[0013] As a preferred scheme of the coal bunker with high stability, the other end surface of the outer cylinder is provided with a first back plate, a first support channel is arranged at the end of the first back plate, a support column is arranged on the first back plate, and the end of the support column extends into the outer cylinder through the first support channel.

[0014] As a preferred scheme of the coal bunker with high stability, the end of the inner cylinder is provided with a second back plate, the end surface of the second back plate is provided with a second support channel in communication with the inner cavity of the partition plate, and the support column extends into the second support channel and supports the rotation of the inner cylinder.

[0015] As a preferred scheme of the coal bunker with high stability, the outer wall of the support column is provided with a plurality of buffer pieces which can be extended and retracted.

[0016] As a preferred scheme of the coal bunker with high stability, the outer wall of the outer cylinder is provided with a support plate on both sides, and a first feeding channel is further arranged on the outer cylinder.

[0017] As a preferred scheme of the coal bunker with high stability, the end face of the inner cylinder is provided with an inner baffle, and the end face of the inner baffle is provided with a reference handle.

[0018] As a preferred scheme of the coal bunker with high stability, the second back plate is further provided with a second feeding channel.

[0019] The coal bunker provided by the application has the advantages that the coal bunker is divided into two coal storage cavities by a partition plate, and the inner cylinder is rotated under the effect of its own gravity when the coal on one side is used up, so that the coal bunker is in a balanced state, thereby avoiding the disadvantages caused by structural unbalanced load and effectively solving the problems in the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative effort.

[0021] Fig. 1 is a schematic view of the overall structure in the application.

[0022] Fig. 2 is a schematic view of the sub-bunker assembly structure in the application.

[0023] Fig. 3 is a schematic view of the outer cylinder structure in the application.

[0024] Fig. 4 is a schematic view of the plugging assembly structure in the application.

[0025] Fig. 5 is a schematic view of the rear view of the sub-bunker assembly structure in the application.

[0026] In the drawings: 100, bearing assembly; 101, outer cylinder; 101a, adaptive groove; 101a-1, movable end; 101a-2, first buffer end; 101a-3, second buffer end; 101b, first discharge port; 101c, support plate; 102, first back plate; 102a, first support channel; 103, support column; 103a, buffer sheet; 200, sub-bunker assembly; 201, inner cylinder; 201a, second discharge port; 201b, ratchet; 202, partition plate; 203, inner baffle; 203a, reference handle; 204, second back plate; 204a, second support channel; 204b, second feeding channel; 300, plugging assembly; 301, limiting plate; 301a, limiting protrusion; 302, sealing plate; 302a, handle. DETAILED DESCRIPTION

[0027] In order to make the above objectives, features and advantages of the present application more obvious and comprehensible, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0028] In the following description, a large number of specific details are set forth in order to facilitate a thorough understanding of the present application, but the present application can also be implemented in other manners different from those described herein, and those skilled in the art can make similar generalizations without departing from the spirit and scope of the present application, therefore the present application is not limited to the specific embodiments disclosed below.

[0029] Secondly, the "one embodiment" or "embodiment" referred to herein means that a specific feature, structure or characteristic can be included in at least one implementation of the present application. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an embodiment that is independent or alternative to other embodiments.

[0030] Embodiment 1

[0031] Referring to FIGS. 1-5, a first embodiment of the present application is provided, which provides a coal bunker with high stability. When the coal on one side of the coal bunker is used up, the inner cylinder provided therein will be rotated due to its own gravity, so that the whole coal bunker is in a balanced state, thereby avoiding many disadvantages caused by structural unbalanced load.

[0032] Specifically, the bearing assembly 100 includes an outer cylinder 101 and a first discharge port 101b formed in the outer wall of the outer cylinder 101; the compartment assembly 200 includes an inner cylinder 201 rotatably arranged in the outer cylinder 101 and two second discharge ports 201a symmetrically distributed and penetratingly formed in the outer wall of the inner cylinder 201, and a partition plate 202 arranged in the inner cylinder 201 for dividing the inner cavity of the inner cylinder 201 into two coal storage cavities.

[0033] It should be noted that the outer wall of the inner cylinder 201 does not contact the inner wall of the outer cylinder 101, i.e. the diameter of the inner cylinder 201 is smaller than the diameter of the outer cylinder 101, and the coal will be stored in the inner cylinder 201 and will be discharged through the second discharge port 201a and the first discharge port 101b in sequence.

[0034] Among them, the same weight of coal is input into the two coal storage cavities, and the partition plate 202 is in a vertical state, when the coal in one side of the coal storage cavity is consumed, the inner cylinder 201 will be rotated due to the gravity, ensuring that the bearing assembly 100 is in a balanced state.

[0035] In summary, the staff can store high-quality coal and low-quality coal in the inner cylinder 201 respectively, and ensure that the input quality of high-quality coal and low-quality coal is the same. According to the actual work needs, when it is needed to discharge high-quality coal or low-quality coal, the inner cylinder 201 is fixed, and then the coal in the coal storage cavity is discharged. When one side of the coal is emptied, the work is completed, and then the fixation of the inner cylinder 201 is cancelled, and the inner cylinder 201 will be affected by gravity and rotate in the outer cylinder 101, so that the whole coal bunker is in a balanced state.

[0036] Embodiment 2

[0037] Referring to FIGS. 1-5, the second embodiment of the present application is based on the previous embodiment, except that a way of fixing the inner cylinder 201 is provided.

[0038] Specifically, the end of the outer cylinder 101 is provided with an adaptive slot 101a, and the adaptive slot 101a includes a movable end 101a-1 and a first buffer end 101a-2 and a second buffer end 101a-3 respectively provided in the movable end 101a-1. As shown in FIG. 3, the middle position of the two mutually mirror adaptive slots 101a on the outer cylinder 101 separates the outer cylinder 101 into a marked area, which is used to calibrate the rotation of the inner cylinder 201.

[0039] Further comprising a sealing assembly 300 movably arranged in the adaptive slot 101a, the sealing assembly 300 includes a limiting plate 301 and a sealing plate 302 movably connected with one end of the limiting plate 301, and a torsion spring is arranged at the connection between the limiting plate 301 and the sealing plate 302. The sealing assembly 300 not only needs to bear the closure of the coal storage cavity in the inner cylinder 201, but also needs to cooperate with the outer cylinder 101 to fix the inner cylinder 201.

[0040] It should be noted that when the limiting plate 301 and the sealing plate 302 are on the same arc, i.e. in the state shown in FIG. 4, the torsion spring at the connection between the two is in a stressed state. When the torsion spring is not stressed, the limiting plate 301 should be in the first buffer end 101a-2 or the second buffer end 101a-3.

[0041] How to set a torsion spring at the connection between the limiting plate 301 and the sealing plate 302 has been completely recorded in the prior art, and will not be described in detail here.

[0042] The outer wall of the inner cylinder 201 is provided with a ratchet 201b, the outer wall of the limiting plate 301 is provided with a limiting protrusion 301a engaged with the ratchet 201b, and one end of the sealing plate 302 extends to the outside of the outer cylinder 101 and is provided with a handle 302a. When the limiting protrusion 301a is engaged with the ratchet 201b, the inner cylinder 201 will be fixed.

[0043] In summary, if one side of the coal storage cavity is to be opened, the corresponding blocking assembly 300 below the side of the coal storage cavity can be rotated. In the initial state, that is, when the coal storage cavity is not opened, the limiting plates 301 in each blocking assembly 300 are located in the second buffer end 101a-3, respectively.

[0044] The movable blocking assembly 300 will cause the limiting plate 301 to move out of the second buffer end 101a-3 and into the movable end 101a-1. At this time, the second discharge port 201a will be opened, and coal can be discharged. At the same time, the limiting protrusion 301a will also engage with the ratchet 201b. It should be noted that during the engagement of the limiting protrusion 301a and the ratchet 201b, the inner cylinder 201 will be offset to a certain extent and away from the axis of the outer cylinder 101. When the limiting protrusion 301a and the ratchet 201b are completely engaged, the inner cylinder 201 is reset and fixed.

[0045] When one side of the coal is emptied, continue to rotate the blocking assembly 300 so that the limiting plate 301 enters the first buffer end 101a-2. At this time, the inner cylinder 201 is released from the limiting plate 301, and the blocking assembly 300 is also fixed. The inner cylinder 201 will be affected by the weight of the other side of the coal storage cavity and will rotate, that is, the partition plate 202 will rotate from a vertical state to a horizontal state, and the inner cylinder 201 will continue to maintain balance.

[0046] Embodiment 3

[0047] Referring to FIGS. 1-5, the third embodiment of the present application is based on the previous embodiment, but some adaptive adjustments are made to meet the above functions.

[0048] Specifically, the end of the inner cylinder 201 is provided with a second back plate 204, and the end face of the second back plate 204 is provided with a second support channel 204a communicating with the inner cavity of the partition plate 202. The support column 103 extends into the second support channel 204a and supports the rotation of the inner cylinder 201.

[0049] The outer wall of the support column 103 is provided with a plurality of buffer pieces 103a which can be extended and retracted. When the buffer pieces 103a gradually enter the support column 103, they will have a certain buffering effect. That is, the support column 103 and the buffer pieces 103a are provided with elastic members. The buffer pieces 103a are used to support the offset of the inner cylinder 201 in the above embodiments.

[0050] The outer wall of the outer cylinder 101 is provided with a support plate 101c on both sides, and the outer cylinder 101 is also provided with a first feeding channel. The first feeding channel is closed in the normal state and is only opened when the inner cylinder 201 is replenished with coal.

[0051] The end face of the inner cylinder 201 is provided with an inner baffle 203, and the end face of the inner baffle 203 is provided with a reference handle 203a. The reference handle 203a can cooperate with the identification area in the above-mentioned embodiment, and when the coal is input into the inner cylinder 201, the two coal storage cavities in the inner cylinder 201 are balanced, and the rotation of the inner cylinder 201 is realized by the reference handle 203a controlled by the worker.

[0052] The second back plate 204 is also provided with a second feeding channel 204b. When the two coal storage cavities in the inner cylinder 201 are balanced, the second feeding channel 204b is aligned with the first feeding channel.

[0053] It should be noted that the support plate 101c facilitates the worker to fix the outer cylinder 101 by a conventional method.

[0054] Importantly, it should be noted that the construction and arrangement of the application shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters, mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described in the application. For example, elements shown as integrally formed can be constructed of multiple parts or elements, the position of elements can be reversed or otherwise varied, and the nature or number of elements or positions can be altered or varied. Accordingly, all such variations are intended to be included within the scope of the present application. The order or sequence of any process or method steps can be varied or re-sequenced without materially affecting the application. Any "means plus function" clauses are intended to cover the structures described herein as performing the recited functions and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes, and omissions can be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the application as expressed in the appended claims. Accordingly, the application is not limited to the particular embodiments described and illustrated herein, but is intended to cover all modifications that are within the scope of the appended claims.

[0055] In addition, in order to provide a brief description of the exemplary embodiments, all the features of the actual embodiments (i.e. those features irrelevant to the best mode of carrying out the application currently considered, or those features irrelevant to the implementation of the application) can not be described.

[0056] It is to be understood that the development of the particular implementations described herein was motivated by the desire to solve real-world problems, and as such the claimed implementations can be susceptible to further implementation while still being generically consistent with the descriptions provided herein. Specifically, although many of the examples provided herein describe particular implementations with reference to particular applications for illustration, those of ordinary skill in the art will recognize that the described implementations can be used in other applications and / or modified to be used in other applications and that the descriptions provided herein do not limit the claimed implementations to the applications described by way of example. Those skilled in the art will readily recognize a variety of applications for the claimed implementations.

[0057] It should be noted that the above examples are only used to illustrate the technical solutions of the present application but not limit the present application. Although the present application is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the present application, which should be covered by the claims of the present application.

Claims

1. A coal bunker having high stability, characterized by: Including, The bearing assembly (100) comprises an outer cylinder (101) and a first discharge port (101b) formed in the outer wall of the outer cylinder (101); The compartment assembly (200) comprises an inner cylinder (201) rotatably arranged in the outer cylinder (101), two second discharge ports (201a) penetratingly formed in the outer wall of the inner cylinder (201) and symmetrically distributed, and a partition plate (202) arranged in the inner cylinder (201) and used for dividing the inner cavity of the inner cylinder (201) into two coal storage cavities; Wherein, the same weight of coal is input into the two coal storage cavities, and the partition plate (202) is in a vertical state; when the coal in one side of the coal storage cavity is consumed, the inner cylinder (201) will be affected by gravity and rotate, so that the bearing assembly (100) is in a balanced state; An adaptive groove (101a) is formed in the end of the outer cylinder (101), and the adaptive groove (101a) comprises a movable end (101a-1) and a first buffer end (101a-2) and a second buffer end (101a-3) respectively formed in the movable end (101a-1); Further comprising a sealing assembly (300) movably arranged in the adaptive groove (101a), the sealing assembly (300) comprises a limiting plate (301) and a sealing plate (302) movably connected with one end of the limiting plate (301), and a torsional spring is arranged at the connection between the limiting plate (301) and the sealing plate (302); The outer wall of the inner cylinder (201) is provided with a ratchet (201b), the outer wall of the limiting plate (301) is provided with a limiting protrusion (301a) engaged with the ratchet (201b), and one end of the sealing plate (302) extends to the outside of the outer cylinder (101) and is provided with a handle (302a); The other end surface of the outer cylinder (101) is provided with a first back plate (102), a first support channel (102a) penetratingly formed in the end of the first back plate (102), a support column (103) arranged on the first back plate (102), and the end of the support column (103) extending into the outer cylinder (101) through the first support channel (102a); The end of the inner cylinder (201) is provided with a second back plate (204), and the end surface of the second back plate (204) is provided with a second support channel (204a) in communication with the inner cavity of the partition plate (202), and the support column (103) extends into the second support channel (204a) and supports the rotation of the inner cylinder (201); The outer wall of the support column (103) is provided with a plurality of buffer pieces (103a) which can be stretched and contracted.

2. The coal bunker with high stability as claimed in claim 1, wherein: The outer wall of the outer cylinder (101) is provided with a support plate (101c) on both sides, and the outer cylinder (101) is further provided with a first feeding channel.

3. The coal bunker with high stability as claimed in claim 1, wherein: The end surface of the inner cylinder (201) is provided with an inner baffle (203), and the end surface of the inner baffle (203) is provided with a reference handle (203a).

4. The coal bunker with high stability as claimed in claim 1, wherein: The second back plate (204) is further provided with a second feeding channel (204b).

Images