Blast furnace tuyere small mirror device capable of cleaning ash on line

Abstract

The utility model relates to a blast-furnace tuyere small mirror, in particular to a blast-furnace tuyere small mirror device capable of cleaning ash on line. Comprising a tuyere small mirror cover and a threaded rod, the tuyere small mirror cover is a cylinder with one closed end and one open end, the open end of the tuyere small mirror cover is in threaded connection with the threaded rod, a peephole is formed in the closed end of the tuyere small mirror cover, and a gasket and a lens are sequentially arranged in the tuyere small mirror cover and located at the closed end. The dust discharging channel and the compressed air channel are fixedly connected to the side wall of the tuyere small mirror cover and are communicated with the interior of the tuyere small mirror cover; the ash discharging channel and the compressed air channel are located between the opening end of the tuyere small mirror and the lens. And on-line cleaning and deashing operation can be carried out without screwing off the small mirror cover of the tuyere, so that the life safety and the body health of operators are guaranteed.

Description

Technical Field

[0001] The utility model relates to a small tuyere mirror of a blast furnace, in particular to a small tuyere mirror device of a blast furnace capable of cleaning ash online. Background Technique

[0002] The small tuyere mirror of a blast furnace is the most direct channel for blast furnace operators to observe the smelting situation inside the blast furnace. The small tuyere mirror generally includes a tuyere mirror cover, a lens, a gasket, and a viewing hole on the tuyere mirror cover. There are threaded holes inside the tuyere mirror cover, and the tuyere mirror cover is threadedly connected to the threaded rod of the small tuyere cover. The threaded rod is hollow and corresponds to the viewing hole on the tuyere mirror cover to form a viewing channel.

[0003] During the production process, dust and other sundries in the air duct will accumulate on the inner side of the lens of the tuyere mirror cover, affecting the operator's observation of the hearth situation. Therefore, it is necessary to regularly remove the accumulated ash and replace the lens. During the operation process, it is necessary to close the hoist switch of the small tuyere cover and unscrew the small tuyere mirror cover for cleaning operations. The whole process is cumbersome and there are certain safety risks. Personnel stay on the tuyere platform for a long time. Generally, the number of tuyeres in medium-sized and above blast furnaces exceeds 30. The workload of cleaning the ash of the small tuyere mirror every day is large, and personnel stay on the tuyere platform for a long time, increasing the risk of contacting gas.

[0004] Chinese Patent with application number 202021950569.1 discloses "a structure of a blast furnace tuyere mirror". The tuyere mirror includes a lens cover, a lens, and an ash accumulation pad. There is a viewing hole on the end face of the lens cover, and there is a threaded hole inside the lens cover. Inside the threaded hole

[0005] The lens and the ash accumulation pad are placed in sequence. The ash accumulation pad includes an integrally formed ring body and claw bodies. The claw bodies are distributed along the outer circumference of the ring body. The outer diameter of the claw bodies is the same as the outer diameter of the lens. Ash accumulation areas are formed between the claw bodies. Although there is an ash accumulation pad, which extends the service life of the lens, reduces the workload of replacing the lens, and reduces the consumption of the lens, it is still necessary to regularly remove the accumulated ash and replace the lens, and the tuyere mirror cover still needs to be unscrewed for cleaning operations during the operation process. Content of the Utility Model

[0006] In order to overcome the deficiencies of the prior art, the utility model provides a small tuyere mirror device of a blast furnace capable of cleaning ash online, which can perform cleaning and ash removal operations online without unscrewing the small tuyere mirror cover, ensuring the life safety and physical health of operators.

[0007] In order to achieve the above purpose, the utility model is realized by adopting the following technical solutions:

[0008] A small tuyere mirror device for a blast furnace that can be cleaned online, comprising a small tuyere mirror cover and a threaded rod. The small tuyere mirror cover is a cylindrical shape with one end closed and one end open. The open end of the small tuyere mirror cover is threadedly connected to the threaded rod. A viewing hole is provided at the closed end of the small tuyere mirror cover. A gasket and a lens are sequentially arranged inside the small tuyere mirror cover, at the closed end. It further includes an ash discharge channel and a compressed air channel. The ash discharge channel and the compressed air channel are fixedly connected to the side wall of the small tuyere mirror cover and communicate with the inside of the small tuyere mirror cover; the ash discharge channel and the compressed air channel are located between the open end of the small tuyere mirror and the lens.

[0009] Further, the ash discharge channel and the compressed air channel are arranged vertically.

[0010] Further, the diameters of the ash discharge channel and the compressed air channel are 4 - 8 mm.

[0011] Further, an ash discharge ball valve is provided on the ash discharge channel.

[0012] Further, a compressed air ball valve is provided on the compressed air channel.

[0013] Further, the compressed air channel is connected to an air compressor.

[0014] Further, the compressed air channel is connected to the air compressor through a hose.

[0015] Compared with the prior art, the present utility model has at least the following technical effects or advantages:

[0016] The present utility model is provided with an ash discharge channel and a compressed air channel. The ash discharge channel and the compressed air channel are fixedly connected to the side wall of the small tuyere mirror cover and communicate with the inside of the small tuyere mirror cover. Compressed air is introduced into the small tuyere mirror through the compressed air channel for cleaning, and ash is discharged through the ash discharge channel, thereby realizing online cleaning operation. The present utility model can complete the cleaning operation without moving the small cover of the tuyere and the small tuyere mirror cover, overcoming the disadvantages of long cleaning operation time, high operation risk, and high risk of personnel contacting gas in the traditional cleaning operation, greatly reducing the cleaning operation time, avoiding potential safety hazards in the operation process, and improving the operation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present utility model.

[0018] In the figure: 1 - viewing hole, 2 - small tuyere mirror cover, 3 - handle, 4 - lens, 5 - threaded rod, 6 - ash discharge channel, 7 - ash discharge ball valve, 8 - compressed air channel, 9 - compressed air ball valve, 10 - hose, 11 - air compressor, 12 - gasket DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Embodiments of the present utility model will be described in detail below. To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way restricts the present utility model and its application or use. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

[0020] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model 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 thus should not be construed as limiting the present utility model.

[0021] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0022] In the description of the present utility model, it should be noted that the terms used here are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0023] Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present utility model. At the same time, it should be clear that for the convenience of description, the dimensions of the various parts shown in the drawings are not drawn in accordance with the actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0024] In addition, it should be noted that the use of terms such as "first" and "second" to limit the components is only for the convenience of distinguishing the corresponding components. Without additional statements, the above terms have no special meanings and therefore cannot be understood as limiting the protection scope of the present utility model. Embodiment

[0025] As Figure 1 shown, a small blast furnace tuyere mirror device capable of online dust cleaning includes a tuyere mirror cover 2 and a threaded rod 5. The tuyere mirror cover 2 is cylindrical with one end closed and one end open. The open end is provided with an internal thread corresponding to the threaded rod 5, and the open end of the tuyere mirror cover is threadedly connected to the threaded rod 5.

[0026] The closed end of the tuyere mirror cover 2 is provided with a viewing hole 1. A gasket 12 and a lens 4 are sequentially arranged inside the tuyere mirror cover 2 at the closed end. The gasket 12 is located between the lens 4 and the viewing hole 1. A handle 3 is fixedly connected to the outer wall of the tuyere mirror cover 2.

[0027] A dust discharge channel 6 is vertically fixedly connected to the side wall of the tuyere mirror cover and is in communication with the inside of the tuyere mirror cover 2, located above. A compressed air channel 8 is vertically fixedly connected to the side wall of the tuyere mirror cover 2 and is in communication with the inside of the tuyere mirror cover 2, located below. The dust discharge channel 6 and the compressed air channel 8 are located between the open end of the tuyere mirror and the lens 4, and the compressed air channel 8 is located between the lens 4 and the dust discharge channel 6.

[0028] The diameters of the dust discharge channel 6 and the compressed air channel 8 are 4 - 8 mm. A dust discharge ball valve 7 is provided on the dust discharge channel 6. A compressed air ball valve 9 is provided on the compressed air channel 8. The compressed air channel 8 is connected to an air compressor 11 through a hose 10.

[0029] When performing the purging and dust cleaning operation, connect the compressed air passage 8 to the air compressor 11 through the hose 10, start the air compressor 11, open the compressed air ball valve 9 to supply air into the tuyere mirror, and open the ash discharge ball valve 7 to discharge ash. The time should not exceed 5 seconds. After the cleaning is completed, just close the air compressor 11, the compressed air ball valve 9, and the ash discharge ball valve 7, thus realizing the on-line purging and dust cleaning operation.

[0030] The utility model can complete the cleaning operation without opening the tuyere mirror cover 2, overcome the disadvantages of long traditional dust cleaning time, high operation risk, and high risk of personnel contacting gas, greatly reduce the dust cleaning time, avoid potential safety hazards brought by the operation process, and improve the operation efficiency.

[0031] The protection scope of the utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the utility model, according to the technical solution and the inventive concept of the utility model, making equivalent replacements or changes, shall be covered by the protection scope of the utility model.

Claims

1. A blast furnace tuyere mirror device capable of online dust cleaning, comprising a tuyere mirror cover and a threaded rod, wherein the tuyere mirror cover is cylindrical with one end closed and the other end open, the open end of the tuyere mirror cover is threadedly connected to the threaded rod, a peephole is provided at the closed end of the tuyere mirror cover, a gasket and a lens are sequentially arranged in the tuyere mirror cover and located at the closed end; Features: It also includes an ash discharge channel and a compressed air channel, which are fixed to the side wall of the tuyere small mirror cover and are connected to the inside of the tuyere small mirror cover; the ash discharge channel and the compressed air channel are located between the opening end of the tuyere small mirror and the lens.

2. The blast furnace tuyere small mirror device capable of online dust cleaning according to claim 1, characterized in that: The ash discharge channel and the compressed air channel are arranged above and below each other.

3. The blast furnace tuyere small mirror device capable of online dust cleaning according to claim 1, characterized in that: The diameters of the ash discharge channel and the compressed air channel are 4-8 mm.

4. The blast furnace tuyere small mirror device capable of online dust cleaning according to claim 1, characterized in that: The ash discharge channel is provided with an ash discharge ball valve.

5. The blast furnace tuyere small mirror device capable of online dust cleaning according to claim 1, characterized in that: A compressed air ball valve is provided on the compressed air channel.

6. The blast furnace tuyere small mirror device capable of online dust cleaning according to claim 1, characterized in that: The compressed air channel is connected to an air compressor.

7. The blast furnace tuyere small mirror device capable of online dust cleaning according to claim 6, characterized in that: The compressed air channel is connected to the air compressor through a hose.

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