Coal flow guide structure and fire coal blending device

Abstract

The utility model discloses a coal flow guide structure and a fire coal blending device, and the coal flow guide structure comprises a first shell, a second shell and a micro-power assembly, the first shell is provided with a flow guide channel, coal flows in the flow guide channel from top to bottom, the first shell is provided with a second shell, the second shell is provided with a cavity, the cavity is communicated with the flow guide channel, and therefore the stress characteristic of the coal during flowing is changed, the micro-power assembly comprises a disturbance part arranged in the cavity, and the disturbance part rotates around the axis of the disturbance part; and shearing movement is carried out relative to the coal in the cavity, so that a bonding or arching foundation of the coal and the inner wall of the flow guide channel is damaged, the fluidity of the coal is improved, the coal is prevented from being hardened in the flow guide channel, the blockage of the coal flow guide structure is avoided, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal power generation equipment, in particular to a coal guide structure and a coal blending device. Background Art

[0002] A guide structure is provided between the lower outlet of the raw coal bunker and other granular storage bunkers in thermal power plants and the feeder to facilitate the transportation of coal.

[0003] The traditional diversion structure is set in a right-conical pipe, including a circular conical pipe or a square conical pipe. The flow area of ​​this diversion structure gradually decreases from top to bottom. When the coal and other particles in the raw coal bunker are discharged through the diversion structure, the mechanical properties between the diversion structure and the coal cause frequent arching and blockage in the diversion structure, which seriously affects normal production operations. Utility Model Content

[0004] Therefore, the technical problem to be solved by the utility model is to overcome the defect of the coal guide structure in the prior art that it is easy to form arches and blockages in its inner cavity, thus affecting the production efficiency, thereby providing a coal guide structure and a coal blending device.

[0005] In order to solve the above technical problems, the technical solution of the utility model is as follows:

[0006] A coal guide structure comprises: a first shell, a second shell and a micro-power assembly; a guide channel is provided in the first shell, and a connection port connected to the guide channel is opened on the side wall of the first shell; the second shell is arranged on the first shell, and a cavity is provided in the second shell, and the cavity is connected to the guide channel; the micro-power assembly is arranged on the second shell, and comprises a disturbance member located in the cavity, and the disturbance member rotates to change the flow characteristics of the coal.

[0007] According to some embodiments of the present utility model, the first shell is a symmetrical conical tube structure, the length direction of the guide channel is arranged along the vertical direction, and the cross-sectional area of ​​the guide channel decreases from top to bottom.

[0008] According to some embodiments of the present invention, the second shell is a polyhedral structure, and the disturbance element is disposed at the bottom of the second shell.

[0009] According to some embodiments of the utility model, a through hole is provided at the bottom of the second shell, and the micro-power assembly also includes a driving member and a transmission shaft, the driving member is provided on the outer wall of the second shell, the transmission shaft passes through the through hole, the first end of the transmission shaft is located outside the cavity and is transmission-connected to the output end of the driving member, the second end of the transmission shaft is located inside the cavity and is transmission-connected to the disturbance member, and the driving member drives the transmission shaft to rotate to drive the disturbance member to rotate around its axis.

[0010] According to some embodiments of the present invention, the disturbance member is a thumbwheel structure.

[0011] According to some embodiments of the present invention, the axial direction of the transmission shaft is arranged at an inclined angle with the axial direction of the first housing.

[0012] According to some embodiments of the present invention, the first shell and the second shell are fixed by welding, and the length of the connecting port is at least greater than half of the length of the first shell.

[0013] According to some embodiments of the present invention, the disturbance member is provided in plurality and is disposed on a plurality of planar side walls of the bottom of the second shell.

[0014] According to some embodiments of the present invention, an interconnecting through hole is provided on the top of the second shell, and the interconnecting through hole is suitable for communicating with any coal bunker through an interconnecting pipeline.

[0015] A coal blending device comprises a raw coal bin, a coal feeder and a coal guide structure. The coal guide structure is arranged between the raw coal bin and the coal feeder to be suitable for conveying coal.

[0016] The technical solution of the utility model has the following advantages:

[0017] 1. The utility model provides a coal guide structure, wherein the first shell is provided with a guide channel, and the coal flows from top to bottom in the guide channel. A second shell is arranged on the first shell, and the second shell is provided with a cavity, which is communicated with the guide channel, so as to change the force characteristics of the coal when it flows. The micro-power component includes a disturbance member arranged in the cavity, and the disturbance member rotates around its own axis and performs shearing motion relative to the coal in the cavity, so as to destroy the adhesion or arch foundation between the coal and the inner wall of the guide channel, increase the fluidity of the coal, avoid the coal from forming a hardening in the guide channel, thereby avoiding the blockage of the coal guide structure and improving the production efficiency.

[0018] 2. The coal blending device provided by the utility model realizes the guiding of coal by setting a coal guide structure between the raw coal bin and the coal feeder, which can avoid the coal from being compacted in the coal guide structure, ensure the smoothness of material feeding, and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic diagram of a coal guide structure provided in some embodiments of the utility model;

[0021] Figure 2 A schematic diagram of the assembly of the second housing and the micro-power assembly of the coal guide structure provided in some embodiments of the utility model;

[0022] Figure 3 Another structural schematic diagram of the coal guide structure provided in some embodiments of the utility model;

[0023] Figure 4 A schematic structural diagram of a coal blending device provided in some embodiments of the utility model.

[0024] Explanation of the reference numerals: 1. coal guide structure; 2. raw coal bin; 3. coal feeder; 11. first shell; 12. second shell; 13. micro-power assembly; 111. guide channel; 121. cavity; 122. interconnecting through hole; 131. disturbance member; 132. driving member; 133. transmission shaft. DETAILED DESCRIPTION

[0025] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0029] Reference Figure 1 and Figure 2 As shown, some embodiments of the utility model provide a coal guide structure 1, including: a first shell 11, a second shell 12 and a micro-power component 13; a guide channel 111 is provided in the first shell 11, and a connecting port connected to the guide channel 111 is opened on the side wall of the first shell 11; the second shell 12 is arranged on the first shell 11, and a cavity 121 is provided in the second shell 12, and the cavity 121 is connected to the guide channel 111; the micro-power component 13 is arranged on the second shell 12, and includes a disturbance member 131 located in the cavity 121, and the disturbance member 131 rotates to change the flow characteristics of the coal.

[0030] Specifically, the first shell 11 is provided with a guide channel 111, and the coal flows from top to bottom in the guide channel 111. The second shell 12 is arranged on the first shell 11, and the second shell 12 is provided with a cavity 121. The cavity 121 is connected with the guide channel 111, thereby changing the force characteristics of the coal when it flows. The micro-power component 13 includes a disturbance member 131 arranged in the cavity 121. The disturbance member 131 rotates around its own axis and performs shearing movement relative to the coal in the cavity, thereby destroying the adhesion or arch foundation between the coal and the inner wall of the guide channel, increasing the fluidity of the coal, and avoiding the formation of compaction of the coal in the guide channel 111, thereby avoiding the blockage of the coal guide structure 1 and improving the production efficiency.

[0031] It is understandable that the cavity 121 is eccentrically arranged relative to the flow guide channel 111, thereby destroying the uniform force of the coal in the flow guide channel 111, causing the coal to fall under the state of irregular force characteristics, and avoiding the coal from forming a hardening on the flow guide channel 111. In addition, the disturbance piece 131 of the micro-power component 13 provides a driving force for the flow of the coal in the cavity 121, so that after the coal enters the cavity 121 from the flow guide channel 111, it flows toward the flow guide channel 111 again under the action of the disturbance piece 131, so as to ensure that the coal smoothly enters the coal feeder 3. The role of the micro-power component 13 is to change the flow characteristics of the coal. The change in the flow characteristics allows the coal to flow smoothly in the cavity 121, avoiding the formation of deposits at the bottom of the cavity 121, which causes hardening and affects the production efficiency.

[0032] In some embodiments of the present invention, the first shell 11 is a symmetrical conical tube structure, the length direction of the guide channel 111 is arranged along the vertical direction, and the cross-sectional area of ​​the guide channel 111 decreases from top to bottom.

[0033] In some embodiments of the present invention, the second shell 12 is a polyhedron structure, and the disturbance element 131 is disposed at the bottom of the second shell 12 .

[0034] Specifically, the first shell 11 is a symmetrical conical tube structure, specifically a circular conical tube or a rectangular conical tube. A connecting port is arranged on the side wall of the first shell 11, and the second shell 12 is fixedly arranged on the first shell 11, so that the cavity 121 is connected with the guide channel 111 through the connecting port, destroying the symmetry of the guide channel 111 to change the mechanical properties of the coal when it falls, and the mechanical properties include parameters such as the force direction and the force magnitude, so as to avoid the coal from accumulating and forming a compaction in the guide channel 111. In addition, the setting of the disturbance member 131 ensures that the coal can flow from the cavity 121 to the guide channel 111, avoiding the coal from being deposited and forming a compaction in the cavity 121.

[0035] In some embodiments of the present invention, a through hole is provided at the bottom of the second shell 12, and the micro-power assembly 13 also includes a driving member 132 and a transmission shaft 133, wherein the driving member 132 is provided on the outer wall of the second shell 12, and the transmission shaft 133 is passed through the through hole, and the first end of the transmission shaft 133 is located outside the cavity 121 and is transmission-connected to the output end of the driving member 132, and the second end of the transmission shaft 133 is located inside the cavity 121 and is transmission-connected to the disturbance member 131, and the driving member 132 drives the transmission shaft 133 to rotate to drive the disturbance member 131 to rotate around its axis.

[0036] Specifically, the driving member 132 is a servo motor or a rotary motor, and the transmission shaft 133 is passed through the through hole. The first end of the transmission shaft 133 is located outside the cavity 121 and is transmission-connected to the output end of the driving member 132. The second end of the transmission shaft 133 is located inside the cavity 121 and is rotationally connected to the disturbance member 131. The transmission shaft 133 is driven to rotate by the driving member 132, and the disturbance member 131 is driven to rotate around the axis of its transmission shaft 133, thereby driving the coal to flow, so as to change the flow characteristics of the coal, including changing the flow direction and flow speed of the coal.

[0037] In some embodiments of the present invention, the disturbance member 131 is a thumbwheel structure.

[0038] In some embodiments of the present invention, the axial direction of the transmission shaft 133 is arranged at an inclined angle with the axial direction of the first housing 11 .

[0039] Specifically, the axial direction of the transmission shaft 133 is set at an inclined angle with the axial direction of the first shell 11, so that the disturbance plane of the disturbance member 131 is inclined upward. After the coal enters the cavity 121 through the guide channel 111, it flows obliquely upward under the action of the disturbance member 131, and collides with the falling coal, thereby changing the mechanical characteristics and flow characteristics of the coal, and avoiding the coal deposition and formation of compaction.

[0040] In some embodiments of the present invention, the first shell 11 and the second shell 12 are fixed by welding, and the length of the connecting port is at least greater than half of the length of the first shell 11 .

[0041] Specifically, the first shell 11 and the second shell 12 are sealed and connected and fixed by welding. The length direction of the connection port is greater than half the length of the second shell 12, thereby enlarging the connecting surface between the cavity 121 and the guide channel 111, forming a larger eccentric structure to reduce the probability of coal material solidification in the first shell 11.

[0042] In some embodiments of the present invention, a plurality of the disturbance members 131 are provided, and the disturbance members 131 are disposed on a plurality of planar side walls at the bottom of the second shell 12 .

[0043] Specifically, by arranging a plurality of disturbing members 131 on a plurality of planar side walls at the bottom of the second shell 12, since the second shell 12 is a polyhedral structure, in order to prevent the coal from being deposited at the bottom of the second shell 12, the disturbing members change the flow characteristics of the coal in the cavity 121, thereby ensuring that the coal flows back into the guide channel 111.

[0044] Reference Figure 3As shown, in some embodiments of the present invention, an interconnecting through hole 122 is provided on the top of the second shell 12, and the interconnecting through hole 122 is suitable for communicating with any coal bunker through an interconnecting pipeline.

[0045] Specifically, an interconnecting through hole 122 is provided at the bottom of the second shell 12 for connecting to any coal bunker, thereby realizing interconnection between multiple coal bunkers, so as to facilitate switching of coal types and improve production efficiency.

[0046] Reference Figure 4 As shown, the utility model also proposes a coal blending device, including a raw coal bin 2, a coal feeder 3 and the coal guide structure 1, wherein the coal guide structure 1 is arranged between the raw coal bin 2 and the coal feeder 3 to be suitable for conveying coal.

[0047] Specifically, by setting a coal guide structure 1 between the raw coal bin 2 and the coal feeder 3, coal can be guided, which can prevent coal from becoming compacted in the coal guide structure 1, ensure smooth feeding, and improve production efficiency.

[0048] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A coal guide structure, characterized in that: include A first shell (11), wherein a flow guiding channel (111) is provided in the first shell (11), and a connecting port communicating with the flow guiding channel (111) is provided on a side wall of the first shell (11); A second shell (12) is arranged on the first shell (11), a cavity (121) is arranged in the second shell (12), and the cavity (121) is communicated with the flow guide channel (111); a micro-power component (13) is arranged on the second shell (12), and comprises a disturbance member (131) located in the cavity (121), and the disturbance member (131) rotates to change the flow characteristics of the coal material.

2. The coal guide structure according to claim 1, characterized in that: The first shell (11) is a symmetrical conical tube structure, the length direction of the flow guide channel (111) is arranged along the vertical direction, and the cross-sectional area of ​​the flow guide channel (111) decreases from top to bottom.

3. The coal guide structure according to claim 1, characterized in that: The second shell (12) is a polyhedral structure, and the disturbance element (131) is arranged at the bottom of the second shell (12).

4. The coal guide structure according to claim 3, characterized in that: A through hole is provided at the bottom of the second shell (12); the micro-power assembly (13) further comprises a driving member (132) and a transmission shaft (133); the driving member (132) is provided on the outer wall of the second shell (12); the transmission shaft (133) passes through the through hole; a first end of the transmission shaft (133) is located outside the cavity (121) and is transmission-connected to an output end of the driving member (132); a second end of the transmission shaft (133) is located inside the cavity (121) and is transmission-connected to the disturbance member (131); the driving member (132) drives the transmission shaft (133) to rotate, thereby driving the disturbance member (131) to rotate around its axis.

5. The coal guide structure according to claim 4, characterized in that: The disturbance member (131) is a dial wheel structure.

6. The coal guide structure according to claim 5, characterized in that: The axial direction of the transmission shaft (133) and the axial direction of the first housing (11) are arranged at an inclined angle.

7. The coal guide structure according to claim 1, characterized in that: The first shell (11) and the second shell (12) are fixed by welding, and the length of the connecting port is at least greater than half the length of the first shell (11).

8. The coal guide structure according to claim 3, characterized in that: A plurality of the disturbance members (131) are provided, and are separately arranged on a plurality of planar side walls at the bottom of the second shell (12).

9. The coal guide structure according to claim 1, characterized in that: An interconnecting through hole (122) is provided on the top of the second shell (12), and the interconnecting through hole (122) is suitable for being connected to any coal bunker through an interconnecting pipeline.

10. A coal blending device, characterized in that: It comprises a raw coal bin (2), a coal feeder (3) and a coal guide structure (1) as claimed in any one of claims 1 to 9, wherein the coal guide structure (1) is arranged between the raw coal bin (2) and the coal feeder (3) to be suitable for conveying coal.

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