Raw coal dredging device for coal feeder

Abstract

The raw coal dredging device comprises a plurality of supporting frames installed on a shell of the coal feeder, arch breaking flow aids are installed in all the supporting frames, all the arch breaking flow aids are supported and fixed through the supporting frames, one ends of air source conveying pipes of the arch breaking flow aids are arranged at different positions of a discharging pipe of the coal feeder in a communicating mode, and the other ends of the air source conveying pipes of the arch breaking flow aids are communicated with the discharging pipe of the coal feeder. Each arch breaking flow aid is communicated with a silo compressed air storage tank through a connecting pipe, compressed air is provided for each arch breaking flow aid through the silo compressed air storage tank, an electromagnetic control valve is arranged on an air source conveying pipe, and when the arch breaking flow aid is used, the electromagnetic control valve can be discontinuously opened to blow the compressed air to different positions of a discharging pipe of a coal feeder through each air source conveying pipe. And the hardened materials are dispersed by utilizing the impact force of compressed air, so that the effects of automatic dredging and cleaning are achieved. On one hand, raw coal in the discharging pipe can be prevented from being hardened in the coal feeding process, and on the other hand, the dredging workload can be reduced after the raw coal is hardened, the dredging efficiency is improved, and normal operation of the coal feeder is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of coal feeder use, in particular to a raw coal dredging device for a coal feeder. Background Art

[0002] In the process of coal and oil processing, boilers and coal feeders are needed. In the actual production process, a raw coal silo with a storage capacity of up to 12,000 tons is set up at the coal storage and transportation device of the corresponding workshop. An activated vibrating coal feeder is installed at the bottom of the silo to transport raw coal to the boiler. However, since most of the raw coal transported by the coal blending center is fine powder and moist, in the process of using the coal feeder to feed coal to the boiler, the raw coal inside the activated vibrating coal feeder will often become compacted, causing the coal to be difficult to discharge or not discharged at the feed pipe of the coal feeder, which not only affects the feeding of coal to the boiler, but also causes the activated vibrating coal feeder to overload the coal. It even causes the feed pipe of the activated vibrating coal feeder to expand and crack frequently, and each time the raw coal in the coal feeder is compacted, the workload of dredging is large, the efficiency is low, and it brings unnecessary heavy physical work to the employees, affecting normal production operations. Utility Model Content

[0003] The purpose of the present application is to provide a raw coal dredging device for a coal feeder, so as to solve the problem that the raw coal becomes compacted during use of the existing coal feeder, resulting in poor or no coal feeding at the discharge pipe of the coal feeder, which not only affects the feeding of coal into the boiler, but also causes the activated vibration coal feeder to press the coal to overload, thus resulting in a large dredging workload and low efficiency.

[0004] In order to solve the above technical problems, the present application provides a raw coal dredging device for a coal feeder, comprising:

[0005] Multiple support frames are installed on the outer shell of the coal feeder, and an arch-breaking flow aid is installed in each of the support frames. One end of the air source delivery pipe of each arch-breaking flow aid is connected to different positions of the coal feeder discharge pipe. Each arch-breaking flow aid is connected to the silo compressed air storage tank through a connecting pipe, and an electromagnetic control valve is arranged on the air source delivery pipe.

[0006] On the basis of the above embodiment, as a preferred implementation mode, the number of the arch-breaking flow aids is 6, and the 6 arch-breaking flow aids are arranged on both sides of the coal feeder casing.

[0007] Based on the above embodiments, as a preferred implementation mode, the model of the arch-breaking flow aid is ZB-04-100L.

[0008] What needs to be explained in detail in the scheme is that the support frame includes a lower frame plate and an upper frame plate fixed to the coal feeder casing, a plurality of vertical plates are fixed between one side of the lower frame plate and the upper frame plate, and the arch-breaking flow aid is located in the installation space formed by the lower frame plate, the upper frame plate and each of the vertical plates.

[0009] On the basis of the above embodiments, as a preferred implementation mode, a threaded rod is screwed on one side of the lower frame plate, and one end of the threaded rod is fixed to a limit plate located on the lower frame plate through a connecting plate, and the limit plate is in conflict with the outer side of the arch-breaking flow aid.

[0010] It is further necessary to explain in detail that a slide groove is also provided on the lower frame plate, and a sliding block located in the slide groove is also fixed on the lower side of the limiting plate.

[0011] Based on the above embodiment, as a preferred implementation manner, a screwing handle is also fixed to the outer end of the threaded rod.

[0012] What needs to be explained in detail in the solution is that the limit plate is an arc-shaped limit plate that matches the outer side of the arch-breaking flow aid.

[0013] Compared with the prior art, the utility model provides a raw coal dredging device for a coal feeder, comprising a plurality of support frames installed at the outer shell of the coal feeder, each support frame is equipped with an arch-breaking flow aid, each arch-breaking flow aid is supported and fixed by the support frame, one end of the air source delivery pipe of the arch-breaking flow aid is respectively connected and arranged at different positions of the coal feeder discharge pipe, each arch-breaking flow aid is connected with the silo compressed air storage tank through a connecting pipe, and compressed air is provided to each arch-breaking flow aid through the silo compressed air storage tank, and an electromagnetic control valve is arranged on the air source delivery pipe. When in use, the electromagnetic control valve can be intermittently opened to spray compressed air to different positions of the coal feeder discharge pipe through each air source delivery pipe, and the impact of compressed air is used to evacuate the compacted materials, so as to achieve the effect of automatic dredging and cleaning. On the one hand, it can avoid the compaction of raw coal in the discharge pipe during the coal feeding process, and on the other hand, after compaction occurs, it can reduce the workload of dredging, improve the dredging efficiency, and ensure the normal operation of the coal feeder. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the present application, the following briefly introduces the drawings required for use in the embodiments. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without inventiveness.

[0015] Figure 1 A schematic diagram of the structure of a raw coal dredging device for a coal feeder provided in an embodiment of the present application;

[0016] Figure 2A schematic diagram of a support frame structure provided in an embodiment of the present application;

[0017] In the figure: 1. Coal feeder housing; 2. Screw handle; 3. Support frame; 4. Arch-breaking flow aid; 5. Air source delivery pipe; 6. Coal feeder discharge pipe; 7. Connecting pipe; 8. Solenoid control valve; 9. Lower frame plate; 10. Upper frame plate; 11. Vertical plate; 12. Threaded rod; 13. Connecting plate; 14. Limiting plate; 15. Slide groove; 16. Slider. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0019] The core of the present application is to provide a raw coal dredging device for a coal feeder, which solves the problem that the raw coal becomes compacted during use of the existing coal feeder, resulting in poor or no coal feeding at the feed pipe of the coal feeder, which not only affects the feeding of coal into the boiler, but also causes the activated vibration coal feeder to overload the coal, thus resulting in a large dredging workload and low efficiency.

[0020] Figure 1 The structure of a raw coal dredging device for a coal feeder provided in an embodiment of the present application is schematically shown. Figure 2 A schematic diagram of a support frame structure provided in an embodiment of the present application is shown in FIG. Figure 1 to Figure 2 shown.

[0021] Example 1

[0022] A raw coal dredging device for a coal feeder includes a plurality of support frames 3 installed at a coal feeder housing 1. The structure and working principle of the coal feeder can refer to the prior art. An arch-breaking flow aid 4 is installed in each support frame 3, and the arch-breaking flow aid 4 is supported and fixed by the support frame 3. One end of an air source delivery pipe 5 of each arch-breaking flow aid 4 is connected and arranged at different positions of a coal feeder discharge pipe 6, respectively, for spraying compressed air into the coal feeder discharge pipe 6 at different positions of the coal feeder discharge pipe 6, so as to prevent the raw coal in the coal feeder discharge pipe 6 from being compacted or to evacuate and dredge the compacted raw coal, and to prevent the raw coal from being blocked in the coal feeder discharge pipe 6. Each arch-breaking flow aid 4 is connected to the silo compressed air storage tank through a connecting pipe 7. The silo compressed air storage tank is a setting already in the original operating system. Compressed air is provided to each arch-breaking flow aid 4 through the silo compressed air storage tank. The silo compressed air storage tank is not drawn in the figure. An electromagnetic control valve 8 is provided on the air source delivery pipe 5. When in use, the electromagnetic control valve 8 can be opened intermittently to spray compressed air to different positions of the coal feeder discharge pipe 6 through each air source delivery pipe 5. The impact effect of the compressed air is used to evacuate the compacted material. At the same time, when the arch-breaking flow aid 4 is spraying compressed air, vibration will also be generated, which will drive the coal feeder casing 1 and the coal feeder discharge pipe 6 to vibrate, thereby further improving the evacuation effect of the compacted raw coal.

[0023] On the basis of Example 1, a raw coal dredging device for a coal feeder, in order to further improve the evacuation effect of compacted raw coal, preferably, 6 arch-breaking flow aids 4 can be arranged on the coal feeder casing 1, and the 6 arch-breaking flow aids 4 are arranged on both sides of the coal feeder casing 1.

[0024] In this embodiment, a raw coal dredging device for a coal feeder is used, and the arch-breaking flow aid 4 can select an arch-breaking flow aid of model ZB-04-100L.

[0025] Table 1 is the main technical parameters of the arch-breaking flow aid.

[0026] Serial number project Technical Parameters 1 model ZB-04-100L 2 Volume(L) 100 3 Design pressure(MPa) 0.4-0.8 4 Corrosion allowance 1.0 5 Main material Q235B 6 Tank wall thickness and diameter (mm) 5 / 400 7 Working temperature(℃) -20℃-80℃ 8 Impact force(N) 3500-8000 9 Explosion energy (J) 14300 10 Net weight per unit(Kg) 65

[0027] On the basis of Example 1, a raw coal dredging device for a coal feeder, in order to improve the support and fixing stability of the arch-breaking flow aid 4, preferably, the support frame 3 includes a lower frame plate 9 and an upper frame plate 10 fixed to the coal feeder housing 1, and a plurality of vertical plates 11 are fixed between one side of the lower frame plate 9 and the upper frame plate 10, and the arch-breaking flow aid 4 is located in the installation space formed by the lower frame plate 9, the upper frame plate 10 and each vertical plate 11. The structure of the lower frame plate 9 and the upper frame plate 10 can be seen in Figure 2 shown.

[0028] In the present embodiment, a raw coal dredging device for a coal feeder is provided. In order to fix arch-breaking flow aids 4 of different models and sizes, preferably, a threaded rod 12 is screwed on one side of the lower frame plate 9. One end of the threaded rod 12 is fixed with a limit plate 14 located on the lower frame plate 9 through a connecting plate 13. The limit plate 14 is in conflict with the outer side of the arch-breaking flow aid 4. When in use, the threaded rod 12 can be screwed to drive the limit plate 14 to move so as to fix and install arch-breaking flow aids 4 of different sizes. In the present embodiment, a raw coal dredging device for a coal feeder is provided. In order to improve the stability of the limit plate 14 in use, preferably, a slide groove 15 is provided on the lower frame plate 9. A slider 16 located in the slide groove 15 is fixed on the lower side of the limit plate 14. In the process of driving the limit plate 14 to move by the threaded rod 12, the slider 16 slides in the slide groove 15 to improve the operating stability of the limit plate 14.

[0029] In this embodiment, a raw coal clearing device for a coal feeder is provided. To improve the convenience of screwing the threaded rod 12 , preferably, a screwing handle 2 is fixed to the outer end of the threaded rod 12 , and the threaded rod 12 is screwed by means of the screwing handle 2 .

[0030] In the present embodiment, a raw coal dredging device for a coal feeder is used. In order to further improve the fixing stability of the arch-breaking flow aid 4, preferably, the limit plate 14 can be set as an arc-shaped limit plate matching the outer side of the arch-breaking flow aid 4.

[0031] The present embodiment provides a raw coal dredging device for a coal feeder, comprising a plurality of support frames 3 installed at a coal feeder housing 1, each support frame 3 being equipped with an arch-breaking flow aid 4, each arch-breaking flow aid 4 being supported and fixed by the support frame 3, one end of the air source delivery pipe 5 of the arch-breaking flow aid 4 being connected and arranged at different positions of a coal feeder discharge pipe 6, each arch-breaking flow aid 4 being connected with a silo compressed air storage tank through a connecting pipe 7, and compressed air is provided to each arch-breaking flow aid 4 through the silo compressed air storage tank, and an electromagnetic control valve 8 is arranged on the air source delivery pipe 5, when in use, the electromagnetic control valve 8 can be intermittently opened to spray compressed air to different positions of the coal feeder discharge pipe 6 through each air source delivery pipe 5, and the compacted materials can be evacuated by the impact of the compressed air, so as to achieve the effect of automatic dredging and cleaning. On the one hand, it can prevent the raw coal from being compacted in the discharge pipe during the coal feeding process, and on the other hand, after compaction occurs, it can reduce the dredging workload, improve the dredging efficiency, and ensure the normal operation of the coal feeder.

[0032] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the application disclosed herein. The present application is intended to cover any variations, uses or adaptations of the present application, which follow the general principles of the present application and include common knowledge or customary technical means in the art disclosed in the present application. The specification and examples are to be regarded as exemplary only, and the true scope of the present application is indicated by the claims.

[0033] It should be understood that the present application is not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The above-described embodiments of the present application do not constitute a limitation on the scope of protection of the present application.

Claims

1. A raw coal dredging device for a coal feeder, characterized in that: include: A plurality of support frames (3) are installed on the outer shell (1) of the coal feeder, each of the support frames (3) is installed with an arch-breaking flow aid (4), one end of the air source delivery pipe (5) of each of the arch-breaking flow aids (4) is connected to a different position of the coal feeder discharge pipe (6), each of the arch-breaking flow aids (4) is connected to a silo compressed air storage tank via a connecting pipe (7), and an electromagnetic control valve (8) is arranged on the air source delivery pipe (5).

2. The raw coal dredging device for a coal feeder according to claim 1, characterized in that: The number of the arch-breaking flow aids (4) is 6, and the 6 arch-breaking flow aids (4) are arranged on both sides of the coal feeder housing (1).

3. The raw coal dredging device for a coal feeder according to claim 2, characterized in that: The model of the arch-breaking flow aid (4) is ZB-04-100L.

4. The raw coal dredging device for a coal feeder according to claim 1, characterized in that: The support frame (3) comprises a lower frame plate (9) and an upper frame plate (10) fixed to the coal feeder housing (1); a plurality of vertical plates (11) are fixed between one side of the lower frame plate (9) and the upper frame plate (10); and the arch-breaking flow aid (4) is located in an installation space formed by the lower frame plate (9), the upper frame plate (10) and each of the vertical plates (11).

5. The raw coal dredging device for a coal feeder according to claim 4, characterized in that: A threaded rod (12) is screwed onto one side of the lower frame plate (9), and one end of the threaded rod (12) is fixed to a limiting plate (14) located on the lower frame plate (9) via a connecting plate (13), and the limiting plate (14) contacts the outer side of the arch-breaking flow aid (4).

6. The raw coal dredging device for a coal feeder according to claim 5, characterized in that: The lower frame plate (9) is also provided with a slide groove (15), and a sliding block (16) located in the slide groove (15) is fixed on the lower side of the limiting plate (14).

7. The raw coal dredging device for a coal feeder according to claim 5, characterized in that: A screwing handle (2) is also fixed to the outer end of the threaded rod (12).

8. The raw coal dredging device for a coal feeder according to claim 5, characterized in that: The limiting plate (14) is an arc-shaped limiting plate that matches the outer side of the arch-breaking flow aid (4).

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