Dense-thin separation pulverized coal burner

Abstract

The utility model discloses a thick-thin separation pulverized coal burner which comprises a first pipeline and a second pipeline, a connecting frame is fixedly arranged between the first pipeline and the second pipeline, a fixing block is fixedly arranged in the first pipeline and the second pipeline, and a control switch is fixedly arranged at the top end of the fixing block in an embedded mode. And a screw rod is movably embedded between the fixed blocks. The power mechanism drives the screw rod to rotate, so that the cleaning ring rotates along the screw rod, the cleaning ring moves along the interiors of the first pipeline and the second pipeline, coal powder on the inner side walls of the first pipeline and the second pipeline is removed, and the coal powder is prevented from being accumulated on the inner side walls of the first pipeline and the second pipeline; therefore, the use safety of the device is ensured; the motor drives the rotating shaft to rotate, so that the first gear is driven to rotate, the second gear is driven to rotate, the screws are driven to rotate, the screws on the upper side and the lower side are driven to rotate at the same time, the number of power sources is reduced, and follow-up repair and maintenance work is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of pulverized coal burner equipment, in particular to a pulverized coal burner with concentration-difference separation. Background Technique

[0002] A pulverized coal burner is a high-efficiency combustion device that can enable pulverized coal to burn fully in a short time, generating high-temperature eddies, and is widely used in various industrial heating, drying, annealing, tempering, and steam generation scenarios.

[0003] The principle of the pulverized coal burner with concentration-difference separation is to use centrifugal force or inertial force to divide the primary air pulverized coal air flow into two concentrated and dilute air flows, which enter the furnace through different nozzles for combustion respectively. When the pulverized coal forms an air flow and is transported inside the pipeline, at this time, some pulverized coal will adhere to the inner side wall of the pipeline. When used for a long time, the accumulated pulverized coal is prone to risks such as deflagration and explosion, having certain potential safety hazards. Therefore, there is an urgent need for a device to solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a pulverized coal burner with concentration-difference separation to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A pulverized coal burner with concentration-difference separation, including a first pipeline and a second pipeline. A connecting frame is fixedly arranged between the first pipeline and the second pipeline. Fixed blocks are fixedly arranged inside the first pipeline and the second pipeline. A control switch is fixedly embedded at the top of the fixed block. A screw rod is movably embedded between the fixed blocks. A power mechanism for conveniently driving the screw rod to rotate is arranged between the screw rods. A cleaning ring is sleeved outside the screw rod through threads. When in use, the power mechanism drives the screw rod to rotate, so that the cleaning ring rotates along the screw rod. In this way, the cleaning ring moves along the inside of the first pipeline and the second pipeline, cleaning the pulverized coal on the inner side walls of the first pipeline and the second pipeline, thereby preventing the pulverized coal from accumulating on the inner side walls of the first pipeline and the second pipeline, and thus ensuring the safety of the device during use.

[0006] Preferably, the power mechanism includes a motor, a perforation, a rotating shaft, a first gear, and a second gear. The motor is fixed on one side of the connecting frame. The perforation is opened at the center position of the connecting frame. The rotating shaft is fixed at the output end of the motor. The first gear is fixed on one side of the rotating shaft. The second gear is fixed on one side of the screw rod. The control switch conveniently controls the rotation direction of the motor. When in use, the motor is started, and the motor drives the rotating shaft to rotate, thereby driving the first gear to rotate. In this way, the second gear rotates, driving the screw rod to rotate, and simultaneously driving the upper and lower screw rods to rotate, reducing the number of power sources, and thus facilitating subsequent maintenance work.

[0007] Preferably, the fixing blocks are symmetrically fixed on both sides inside the first pipe and the second pipe.

[0008] Preferably, there are two cleaning rings, and the outer sides of the cleaning rings are respectively closely attached to the inner side walls of the first pipe and the second pipe.

[0009] Preferably, the rotating shaft movably penetrates through the perforation.

[0010] Preferably, the first gear meshes with the second gear, and the motor is electrically connected to the control switch.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] When the present utility model is in use, the power mechanism drives the screw rod to rotate, so that the cleaning ring rotates along the screw rod, so that the cleaning ring moves along the inside of the first pipe and the second pipe, and the pulverized coal on the inner side walls of the first pipe and the second pipe is removed, so as to prevent the pulverized coal from accumulating on the inner side walls of the first pipe and the second pipe, thereby ensuring the safety of the device during use;

[0013] When the present utility model is in use, the motor is started, the motor drives the rotating shaft to rotate, thereby driving the first gear to rotate, so that the second gear rotates, so as to drive the screw rod to rotate, and at the same time drives the screw rods on the upper and lower sides to rotate, reducing the number of power sources, thereby facilitating subsequent maintenance work. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall structure of a pulverized coal burner with separated rich and lean coal of the present utility model;

[0015] Figure 2 is a sectional view of a pulverized coal burner with separated rich and lean coal of the present utility model;

[0016] Figure 3 is an enlarged schematic view of A of a pulverized coal burner with separated rich and lean coal of the present utility model;

[0017] Figure 4 is an enlarged schematic view of B of a pulverized coal burner with separated rich and lean coal of the present utility model.

[0018] In the figure: 1, first pipe; 2, second pipe; 3, connecting frame; 4, fixing block; 5, control switch; 6, cleaning ring; 7, screw rod; 8, motor; 9, second gear; 10, rotating shaft; 11, first gear; 12, perforation. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1-4 , the present invention provides a rich-lean separated pulverized coal burner, which includes a first pipe 1 and a second pipe 2. A connecting frame 3 is fixedly welded between the first pipe 1 and the second pipe 2. Fixed blocks 4 are fixedly welded inside the first pipe 1 and the second pipe 2. The fixed blocks 4 are symmetrically fixed on both sides inside the first pipe 1 and the second pipe 2. A control switch 5 is fixedly embedded at the top of the fixed block 4. A screw rod 7 is movably embedded between the fixed blocks 4. There is a power mechanism for conveniently driving the screw rod 7 to rotate. A cleaning ring 6 is sleeved on the outer side of the screw rod 7 through threads. There are two cleaning rings 6, and the outer sides are respectively closely attached to the inner side walls of the first pipe 1 and the second pipe 2. When in use, the power mechanism drives the screw rod 7 to rotate, so that the cleaning ring 6 rotates along the screw rod 7. In this way, the cleaning ring 6 moves along the inside of the first pipe 1 and the second pipe 2, removing the pulverized coal on the inner side walls of the first pipe 1 and the second pipe 2, thus preventing the pulverized coal from accumulating on the inner side walls of the first pipe 1 and the second pipe 2, thereby ensuring the safety of the device during use.

[0021] The power mechanism includes a motor 8, a through hole 12, a rotating shaft 10, a first gear 11 and a second gear 9. The motor 8 is fixed on one side of the connecting frame 3 through a mounting frame. The through hole 12 is opened at the center of the connecting frame 3. The rotating shaft 10 is fixedly connected to the output end of the motor 8 through a coupling. The rotating shaft 10 movably penetrates through the through hole 12. The first gear 11 is fixedly bolted on one side of the rotating shaft 10. The second gear 9 is fixedly bolted on one side of the screw rod 7. The first gear 11 meshes with the second gear 9. The motor 8 is electrically connected to the control switch 5. The control switch 5 conveniently controls the rotation direction of the motor 8. When in use, the motor 8 is started, and the motor 8 drives the rotating shaft 10 to rotate, thereby driving the first gear 11 to rotate. In this way, the second gear 9 rotates, so as to drive the screw rod 7 to rotate, and at the same time drives the screw rods 7 on the upper and lower sides to rotate, reducing the number of power sources, thereby facilitating subsequent maintenance work.

[0022] Working principle: When in use, the driving mechanism drives the screw rod 7 to rotate, causing the cleaning ring 6 to rotate along the screw rod 7. In this way, the cleaning ring 6 moves along the inside of the first pipe 1 and the second pipe 2, removing the pulverized coal on the inner side walls of the first pipe 1 and the second pipe 2, thereby preventing the pulverized coal from accumulating on the inner side walls of the first pipe 1 and the second pipe 2, and ensuring the safety of the device during use. When in use, the motor 8 is started, and the motor 8 drives the rotating shaft 10 to rotate, thereby driving the first gear 11 to rotate. In this way, the second gear 9 rotates, driving the screw rod 7 to rotate, and simultaneously driving the screw rods 7 on both the upper and lower sides, reducing the number of power sources, and thus facilitating subsequent maintenance work.

[0023] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0024] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pulverized coal burner with separation of thick and thin coal powder, comprising a first pipe (1) and a second pipe (2), characterized in that: A connecting frame (3) is fixedly arranged between the first pipeline (1) and the second pipeline (2). Fixed blocks (4) are fixedly arranged inside the first pipeline (1) and the second pipeline (2). A control switch (5) is fixedly embedded at the top of the fixed block (4). A screw rod (7) is movably embedded between the fixed blocks (4). A power mechanism for conveniently driving the screw rod (7) to rotate is arranged between the screw rods (7). A cleaning ring (6) is sleeved on the outer side of the screw rod (7) through threads.

2. The pulverized coal burner for separating thick and thin coal powder according to claim 1, characterized in that: The power mechanism includes a motor (8), a perforation (12), a rotating shaft (10), a first gear (11) and a second gear (9). The motor (8) is fixed on one side of the connecting frame (3). The perforation (12) is opened at the central position of the connecting frame (3). The rotating shaft (10) is fixed at the output end of the motor (8). The first gear (11) is fixed on one side of the rotating shaft (10). The second gear (9) is fixed on one side of the screw rod (7).

3. The pulverized coal burner for separating thick and thin coal powder according to claim 2, characterized in that: The fixed blocks (4) are symmetrically fixed at both sides inside the first pipeline (1) and the second pipeline (2).

4. The pulverized coal burner with separation of thick and thin coal powder according to claim 3, characterized in that: There are two cleaning rings (6), and the outer sides are respectively closely attached to the inner side walls of the first pipeline (1) and the second pipeline (2).

5. The pulverized coal burner for separating thick and thin coal powder according to claim 4, characterized in that: The rotating shaft (10) movably penetrates through the perforation (12).

6. The pulverized coal burner for separating rich and lean coal powder according to claim 5, wherein: The first gear (11) meshes with the second gear (9), and the motor (8) is electrically connected to the control switch (5).

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