Ironmaking blast furnace tuyere observation device

Abstract

The utility model relates to an iron-making blast furnace tuyere observation device which comprises an observation pipe, a connecting pipe communicated with one end of the observation pipe, a lens assembly arranged in the observation pipe in a sliding mode and a cleaning device arranged at the top of the observation pipe, and the end, away from the observation pipe, of the connecting pipe is inserted into an air inlet; the lens assembly comprises a fixing frame connected with the observation tube in a sliding mode, an observation lens arranged on the fixing frame and a fixing plate fixedly arranged on the side wall of the fixing frame, and when the lens assembly is arranged on the observation tube, the fixing plate is fixedly connected with the side wall of the connecting tube through a second screw. According to the utility model, the condition in the tuyere can be observed from the connecting pipe through the lens assembly. In the lens assembly, the observation lens can be quickly replaced by pulling out the fixing frame. The cleaning device can clean the side, right facing the air opening, of the observation lens, and dust and coal powder attached to the surface are removed.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary devices for iron-making blast furnaces, in particular to a tuyere observation device for iron-making blast furnaces. Background Art

[0002] The tuyere of an ironmaking blast furnace is usually installed in the furnace wall between the furnace belly and the furnace bottom, and the peephole is an important and indispensable equipment for monitoring the insertion depth of the coal injection gun in the coal powder injection system of the blast furnace air supply branch pipe, the uniformity of the coal powder injection and the blast furnace condition.

[0003] The existing observation device is composed of an observation tube and an observation lens. However, due to the change of the blast furnace condition, the coal powder or dust sprayed in the front pipe of the blast furnace tuyere peephole adheres to the observation lens. If it is not cleaned in time, it will affect the blast furnace operator's direct observation of the furnace condition through the tuyere. In addition, when replacing the observation lens, the observation tube needs to be disassembled, which is very cumbersome. Utility Model Content

[0004] In view of this, the utility model aims to provide an iron-making blast furnace tuyere observation device to solve the problem in the prior art that the sprayed coal powder or dust adheres to the observation lens, affecting the blast furnace operator's direct observation of the furnace situation through the tuyere.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] An observation device for the tuyere of an ironmaking blast furnace comprises an observation tube, a connecting tube connected to one end of the observation tube, a lens assembly slidably arranged in the observation tube, and a cleaning device arranged on the top of the observation tube, wherein one end of the connecting tube away from the observation tube is inserted into the tuyere;

[0007] The lens assembly includes a fixed frame slidably connected to the observation tube, an observation lens arranged on the fixed frame, and a fixed plate fixedly arranged on the side wall of the fixed frame. When the lens assembly is in the observation tube, the fixed plate is fixedly connected to the side wall of the connecting tube by a second screw.

[0008] Further, the cleaning device includes a cylinder fixedly arranged at the top of the observation tube, a mounting frame fixedly arranged at the end of the cylinder, and a brush fixedly arranged in the mounting frame;

[0009] The brush is closely fitted to the observation lens, and the brush is arranged along the length direction of the observation lens.

[0010] Furthermore, a protective shell is fixedly disposed on the top surface of the observation tube, and the cylinder is inside the protective shell.

[0011] Furthermore, it also includes a collecting device disposed at the bottom of the observation tube, the collecting device and the cleaning device are on a side of the observation lens facing the connecting tube, and the collecting device and the cleaning device correspond to each other up and down;

[0012] The collecting device comprises a collecting port arranged at the bottom of the collecting pipe, a collecting bin slidably connected in the collecting port, and a transverse plate fixedly arranged on the side wall of the collecting bin;

[0013] When the collecting bin is in the collecting port, the transverse plate is connected to the side wall of the observation tube by a first screw.

[0014] Furthermore, the inner bottom surface of the observation tube is provided with an inclined surface, and the inclined surface is between the collection bin and the connecting tube.

[0015] Furthermore, it also includes a camera assembly connected to and arranged at one end of the observation tube away from the connecting tube;

[0016] The camera assembly includes a camera and a connecting shell. The connecting shell is fixedly connected to the end of the observation tube. The camera is inside the connecting shell and faces the connecting tube.

[0017] Furthermore, the observation device also includes a cooling device arranged on one side, and the cooling device includes a bellows and a fan connected to the bellows, and the protective shell and the connecting shell are connected to the bellows through a connecting pipe.

[0018] Compared with the prior art, the utility model has the following advantages:

[0019] In the utility model, the situation in the air outlet can be observed from the connecting pipe through the lens assembly. The connecting pipe is inserted into the air inlet to prevent dust and impurities from being ejected from the air outlet and affecting the surrounding working environment. In the lens assembly, the observation lens can be quickly replaced by pulling out the fixing frame. The cleaning device can clean the side of the observation lens facing the air outlet to remove dust and coal powder attached to the surface.

[0020] The bottom of the observation tube is equipped with a collection device to collect the cleaned dust and coal powder for centralized treatment. The slope gradually slopes from the collection bin to the connecting pipe. When the coal slag falls on the slope, it will slide down the slope and fall into the collection bin for centralized treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 It is an internal schematic diagram of the utility model;

[0024] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0025] Figure 4 This is a schematic diagram of the structure of the collection device of the utility model;

[0026] Figure 5 This is a schematic diagram of the structure of the lens assembly of the utility model;

[0027] Figure 6 This is a schematic diagram of the cooling device structure of the utility model;

[0028] Figure 7 This is a schematic diagram of the connecting pipe structure of the utility model;

[0029] Figure 8 It is a schematic diagram of the connection hole structure of the utility model.

[0030] Description of reference numerals:

[0031] 101. observation tube; 102. connecting tube; 103. inclined surface; 104. connecting hole;

[0032] 2. Cleaning device; 201. Cylinder; 202. Protective shell; 203. Mounting frame; 204. Brush;

[0033] 3. Collection device; 301. Collection port; 302. Collection bin; 303. Horizontal plate; 304. First screw;

[0034] 4. Lens assembly; 401. Observation lens; 402. Fixing frame; 403. Fixing plate; 404. Second screw;

[0035] 5. Camera assembly; 501. Camera; 502. Connecting shell;

[0036] 6. Cooling device; 601. Bellows box; 602. Connecting pipe; 603. Fan. DETAILED DESCRIPTION

[0037] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0038] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "back" and the like indicate positions or positional relationships based on the positions or positional relationships 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 position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0039] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installation", "connection", "connection", and "connector" 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 an indirect connection 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 in combination with specific circumstances.

[0040] The following will refer to the attached Figures 1 to 8 The utility model is described in detail in conjunction with the embodiments. Embodiment 1

[0041] In general, the utility model discloses an observation device for the tuyere of an ironmaking blast furnace, comprising an observation tube 101, a connecting tube 102 connected to one end of the observation tube 101, a lens assembly 4 slidably arranged in the observation tube 101, and a cleaning device 2 arranged at the top of the observation tube 101, wherein the end of the connecting tube 102 away from the observation tube 101 is inserted into the air inlet, wherein the lens assembly 4 comprises a fixed frame 402 slidably connected to the observation tube 101, an observation lens 401 arranged on the fixed frame 402, and a fixed plate 403 fixedly arranged on the side wall of the fixed frame 402, and when the lens assembly 4 is in the observation tube 101, the fixed plate 403 is fixedly connected to the side wall of the connecting tube 102 by a second screw 404. In this embodiment, the observation tube 101 is a square tube structure, and the mirror surface of the observation lens 401 is perpendicular to the axial direction of the observation tube 101, that is, the long side of the bottom surface of the observation lens 401 is perpendicular to the axial direction of the observation tube 101.

[0042] In this embodiment, if Figures 1 to 5 As shown, the connecting tube 102 is connected to the inside of the observation tube 101 and fixedly welded together. The situation in the air outlet can be observed from the connecting tube 102 through the lens assembly 4. The connecting tube 102 is inserted into the air inlet to prevent dust and impurities from being ejected from the air outlet and affecting the surrounding working environment. In the lens assembly 4, the observation lens 401 is a high temperature resistant lens, which is detachably connected to the fixed frame 402. The observation lens 401 can be quickly replaced by pulling out the fixed frame 402.

[0043] The second screw 404 can fix the fixing frame 402 on the observation tube 101 , and a plurality of second screws 404 may be provided, which is not further limited herein.

[0044] It should be noted that when the iron-making blast furnace is working, the furnace conditions change, and the sprayed coal powder or dust adheres to the observation lens 401, which will reduce the visibility of the observation lens 401 and affect the operator's direct observation of the furnace conditions through the tuyere. To this end, in this embodiment, a cleaning device 2 is installed, and the cleaning device 2 can clean the side of the observation lens 401 facing the tuyere to remove the dust and coal powder attached to the surface of the observation lens 401. The cleaning device 2 includes a cylinder 201, a mounting frame 203 and a brush 204. The cylinder 201 is fixedly installed on the top of the observation tube 101. Specifically, the cylinder 201 is located above the side of the observation lens 401 facing the connecting tube 102, wherein the piston rod end of the cylinder 201 is arranged downward, passes through the top of the observation tube 101, enters the observation tube 101 and is rotatably connected with the brush 204. The mounting frame 203 is in the shape of a door with one side open, and the brush 204 is fixedly arranged at the open part of the mounting frame 203. The brush 204 includes a connecting shaft parallel to the long side of the bottom surface of the observation lens 401, and multiple rows of bristles evenly arranged along the outer circumference of the connecting shaft, and the bristle arrangement direction of each row of bristles is parallel to the axial direction of the connecting shaft.

[0045] In specific implementation, Figure 2 and Figure 3 As shown, the brush 204 is tightly fitted to the side of the observation lens 401 close to the connecting tube 102, and the brush 204 is arranged along the length direction of the observation lens 401, and is the same length as the observation lens 401, that is, the axial direction of the brush is parallel to the long side of the bottom surface of the observation lens 401, and the piston rod of the cylinder 201 is made of a high temperature resistant material, and the brush 204 is also made of a high temperature resistant material. The extension and contraction of the cylinder 201 will drive the brush 204 to clean the observation lens 401 and sweep away the dust and coal powder attached to its surface. When the cleaning device 2 does not need to work, it will drive the fixed frame 402 to be at the top of the observation tube 101 to prevent the operator from observing the air outlet through the observation lens 401. In addition, a protective shell 202 is fixedly arranged on the top surface of the observation tube 101, and the cylinder 201 is in the protective shell 202, and the protective shell 202 can protect the cylinder 201.

[0046] like Figures 2 to 5 As shown, after the cleaning device 2 cleans, dust will accumulate in the observation tube 101. When cleaning, the observation tube 101 must be disassembled, which wastes manpower. In this embodiment, a collecting device 3 is provided at the bottom of the observation tube 101, which can collect the cleaned dust and coal powder and then carry out centralized treatment.

[0047] In a specific implementation, the collecting device 3 and the cleaning device 2 are on a side of the observation lens 401 facing the connecting tube 102, and the collecting device 3 and the cleaning device 2 correspond to each other up and down.

[0048] like Figure 4 As shown, the above-mentioned collecting device 3 includes a collecting port 301 arranged at the bottom of the collecting pipe, a collecting bin 302 slidably connected at the collecting port 301, and a transverse plate 303 fixedly arranged on the side wall of the collecting bin 302. When the collecting bin 302 slides into the collecting port 301, the transverse plate 303 is connected to the side wall of the observation tube 101 by a first screw 304. The dust and coal powder residues cleaned by the cleaning device 2 will enter the collecting bin 302. When centralized processing is required, the collecting bin 302 will slide out. In addition, the first screw 304 plays a role in fixing the collecting bin 302.

[0049] In addition, if Figure 2 As shown, when the ironmaking blast furnace is working, coal slag impurities will also fall into the observation tube 101. In order to facilitate processing, the inner bottom surface of the observation tube 101 is provided with an inclined surface 103, and the inclined surface 103 is between the collection port 301 and the connecting pipe 102. The inclined surface 103 gradually slopes upward from the collection bin 302 to the connecting pipe 102. When the coal slag falls on the inclined surface 103, it will slide down along the inclined surface 103 into the collection bin 302 for centralized processing.

[0050] like Figure 6 As shown, the observation device also includes a camera assembly 5 connected to the end of the observation tube 101 away from the connecting tube 102, wherein the camera assembly 5 includes a camera 501 and a connecting shell 502, the connecting shell 502 is fixedly connected to the end of the observation tube 101, the camera 501 is inside the connecting shell 502, and the camera 501 is facing the connecting tube 102.

[0051] like Figure 8 As shown, in this embodiment, the connection shell 502 can be connected to the observation tube 101 through the connection hole 104, and the connection shell 502 is fixed with a pin that matches the connection hole 401. The camera 501 can observe the air outlet in real time through the observation lens 401. In specific implementation, the operator can remotely observe the situation in the air outlet through a mobile phone, computer, etc. Embodiment 2

[0052] This embodiment is a further development of the above embodiment, the difference is that, Figure 1 , Figure 6 and Figure 7As shown, the cylinder 201 and the camera 501 are working in a high temperature environment, and long-term operation will reduce the service life of the device. In this embodiment, the utility model also includes a cooling device 6, which includes a bellows 601 and a fan 603 connected to the bellows 601. The protective shell 202 and the connecting shell 502 are connected to the bellows 601 through a connecting pipe 602.

[0053] The fan 603 blows the wind through the connecting pipe 602 to the camera 501 and the cylinder 201 to cool them. In specific implementation, the protective shell 202 and the connecting shell 502 are provided with air vents for discharging the blown air. A filter can be installed at the air vent to prevent dust from entering and affecting the normal operation of the cylinder 201 and the camera 501. In addition, the size of the bellows 601 is set according to actual conditions and is not further limited here.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An iron-making blast furnace tuyere observation device, characterized in that: It comprises an observation tube (101), a connecting tube (102) connected to one end of the observation tube (101), a lens assembly (4) slidably arranged in the observation tube (101), and a cleaning device (2) arranged on the top of the observation tube (101), wherein one end of the connecting tube (102) away from the observation tube (101) is inserted into an air inlet; The lens assembly (4) comprises a fixing frame (402) slidably connected to the observation tube (101), an observation lens (401) arranged on the fixing frame (402), and a fixing plate (403) fixedly arranged on a side wall of the fixing frame (402); when the lens assembly (4) is in the observation tube (101), the fixing plate (403) is fixedly connected to the side wall of the connecting tube (102) via a second screw (404).

2. The tuyere observation device for an ironmaking blast furnace according to claim 1, characterized in that: The cleaning device (2) comprises a cylinder (201) fixedly arranged at the top of the observation tube (101), a mounting frame (203) fixedly arranged at the end of the cylinder (201), and a brush (204) fixedly arranged in the mounting frame (203); The brush (204) is tightly fitted to the side surface of the observation lens (401) close to the connecting tube (102), and the brush (204) is arranged along the length direction of the observation lens (401).

3. The tuyere observation device for an ironmaking blast furnace according to claim 2, characterized in that: A protective shell (202) is fixedly disposed on the top surface of the observation tube (101), and the cylinder (201) is inside the protective shell (202).

4. The tuyere observation device for an ironmaking blast furnace according to claim 1, characterized in that: It also comprises a collecting device (3) arranged at the bottom of the observation tube (101), the collecting device (3) and the cleaning device (2) being located on a side of the observation lens (401) facing the connecting tube (102), and the collecting device (3) and the cleaning device (2) corresponding to each other up and down; The collecting device (3) comprises a collecting port (301) arranged at the bottom of the collecting pipe, a collecting bin (302) slidably connected in the collecting port (301), and a transverse plate (303) fixedly arranged on the side wall of the collecting bin (302); When the collecting bin (302) is in the collecting port (301), the transverse plate (303) is connected to the side wall of the observation tube (101) via a first screw (304).

5. The tuyere observation device for an ironmaking blast furnace according to claim 4, characterized in that: The inner bottom surface of the observation tube (101) is provided with an inclined surface (103), and the inclined surface (103) is between the collection bin (302) and the connecting tube (102).

6. The tuyere observation device for an ironmaking blast furnace according to claim 1, characterized in that: It also includes a camera assembly (5) which is arranged in communication with an end of the observation tube (101) away from the connecting tube (102); The camera assembly (5) comprises a camera (501) and a connecting shell (502); the connecting shell (502) is fixedly connected to the end of the observation tube (101); the camera (501) is inside the connecting shell (502); and the camera (501) faces the connecting tube (102).

7. The tuyere observation device for an ironmaking blast furnace according to claim 3, characterized in that: The observation device further comprises a cooling device (6) arranged on one side, the cooling device (6) comprising a bellows (601) and a fan (603) connected to the bellows (601), and the protective shell (202) and the connecting shell (502) are connected to the bellows (601) via a connecting pipe (602).

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