Slag cleaning mechanism for rotary hearth furnace

Abstract

The slag cleaning mechanism comprises a base, the left portion and the right portion of the lower end of the base are each provided with two movable wheels, the right end of the base is provided with a fixing seat, the lower end of the fixing seat is provided with a driving device, and the right portion of the upper end of the base is provided with a cleaning device. A water storage tank is mounted on the left of the upper end of the base, a mounting frame is mounted on the right of the upper end of the water storage tank, and a spraying device is mounted on the left of the front end of the water storage tank. Water in the water storage tank is pumped through the water pump and conveyed into the atomizing nozzle through the connecting pipeline, at the moment, the atomizing nozzle atomizes and sprays out the water, slag on the inner wall of the rotary hearth furnace is wetted, follow-up scraping of the slag is facilitated, after the slag is scraped through the scraping plate, the connecting frame is driven by the first motor to rotate, and the slag on the inner wall of the rotary hearth furnace is scraped through the second motor. And the bristles are aligned with the inner wall of the rotary hearth furnace, fine slag is further cleaned, and therefore the cleaning effect of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of slag cleaning, in particular to a slag cleaning mechanism for a rotary hearth furnace. Background Art

[0002] The rotary hearth furnace process is a coal-based rapid direct reduction technology. Iron-containing raw materials, reducing coal and other materials are mixed into a carbon-containing mixture in a certain proportion. The wet balls made by the ball maker are screened and distributed. The qualified wet balls are sorted and dried in a chain grate, and then enter the rotary hearth furnace for rapid reduction.

[0003] The existing patent (application number 201320486582.X) discloses a rotary hearth furnace scraping mechanism, which includes an outer ring water seal groove and an inner ring water seal groove located in the outer ring water seal groove, wherein the outer ring water seal groove and the inner ring water seal groove are each provided with one or more scraping plate groups, wherein each scraping plate group includes a plurality of scraping plates, and the plurality of scraping plates are spaced apart along the circumferential direction, and the heights of the plurality of scraping plates in the same scraping plate group relative to the bottom surface of the water seal groove at the bottom of the rotary hearth furnace are successively increased / decreased.

[0004] When the qualified wet balls are quickly reduced in the rotary hearth furnace, some raw materials will inevitably remain on the inner wall of the rotary hearth furnace. These waste residues are not only inconvenient to remove, but also accumulate on the inner wall of the rotary hearth furnace for a long time, resulting in more and more waste, which affects the subsequent reduction work of the rotary hearth furnace. Utility Model Content

[0005] The main purpose of the utility model is to provide a slag cleaning mechanism for a rotary hearth furnace, which can effectively solve the problem of inconvenience in removing residual waste on the inner wall of the rotary hearth furnace.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] The slag cleaning mechanism for a rotary hearth furnace comprises a base, two movable wheels are installed on the left and right lower ends of the base, a fixed seat is installed on the right end of the base, a driving device is installed on the lower end of the fixed seat, a cleaning device is installed on the right upper end of the base, a water tank is installed on the left upper end of the base, a mounting frame is installed on the right upper end of the water tank, and a spraying device is installed on the left front end of the water tank.

[0008] Preferably, the cleaning device comprises a hydraulic cylinder, a support seat is mounted on the upper end of the hydraulic cylinder, a No. 1 motor is mounted on the upper end of the support seat, a connecting frame is mounted on the front end of the No. 1 motor, a group of bristles are mounted on the left end of the connecting frame, a group of scrapers are mounted on the right end of the connecting frame, and the hydraulic cylinder is mounted on the upper right part of the base. The scrapers are aligned with the inner wall of the rotary hearth furnace, and then the rotary hearth furnace is rotated, at which time the scrapers can scrape off the slag on the inner wall, and after scraping, the connecting frame is driven to rotate by the No. 1 motor, so that the bristles are aligned with the inner wall of the rotary hearth furnace, and the fine slag is further cleaned, thereby improving the cleaning effect of the device.

[0009] Preferably, the spraying device includes a water pump and a mounting seat, a connecting pipe is installed on the right end of the water pump and the upper end of the mounting seat, a handle is installed on the right part of the upper end of the mounting seat, an atomizing nozzle is installed on the left part of the upper end of the mounting seat, the water pump is installed on the left part of the front end of the water storage tank, and the mounting seat is installed on the upper end of the mounting frame. The water in the water storage tank is extracted by the water pump, and the water is transported to the atomizing nozzle by the connecting pipe. At this time, the atomizing nozzle sprays the water in atomization, thereby wetting the slag on the inner wall of the rotary hearth furnace, thereby facilitating the subsequent scraping of the slag and improving the cleaning efficiency of the device.

[0010] Preferably, the driving device includes a No. 2 motor, a No. 1 gear is installed at the rear end of the No. 2 motor, a No. 2 gear is meshed and connected at the left end of the No. 1 gear, a connecting shaft is installed at the front end of the No. 2 gear, the connecting shaft is installed between the two movable wheels on the right, and the No. 2 motor is installed at the lower end of the fixed seat. The No. 1 gear is driven to rotate by the No. 2 motor, and the No. 1 gear drives the No. 2 gear accordingly, and the No. 2 gear drives the connecting shaft and the movable wheels on both sides thereof to rotate, so as to facilitate the movement of the position of the device as a whole.

[0011] Preferably, a plurality of the scrapers are distributed on the connecting frame at equal distances from front to back.

[0012] Preferably, the mounting frame is in a U-shape.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. When it is necessary to clean the slag on the inner wall of the rotary hearth furnace, first open the furnace cover of the rotary hearth furnace. At this time, people pick up the mounting base and the atomizing nozzle through the handle on the spraying device and move them into the rotary hearth furnace. Then, the water in the water storage tank is pumped out by the water pump, and the water is transported to the atomizing nozzle through the connecting pipe. At this time, the atomizing nozzle sprays the water in atomization, thereby wetting the slag on the inner wall of the rotary hearth furnace, which is convenient for the subsequent scraping of the slag and improves the cleaning efficiency of the device. After the slag is wetted, the atomizing nozzle is taken out. At this time, the scraper on the cleaning device is aligned with the inner wall of the rotary hearth furnace. Then, the rotary hearth furnace is rotated. At this time, the scraper can scrape off the slag on the inner wall, and after scraping, the connecting frame is driven to rotate by the No. 1 motor to make the bristles aligned with the inner wall of the rotary hearth furnace, and the fine slag is further cleaned, thereby improving the cleaning effect of the device.

[0015] 2. The No. 1 gear is driven to rotate by the No. 2 motor on the driving device, and the No. 1 gear then drives the No. 2 gear, and the No. 2 gear in turn drives the connecting shaft and the movable wheels on both sides thereof to rotate, thereby facilitating the movement of the overall position of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of the slag cleaning mechanism for a rotary hearth furnace according to the utility model;

[0017] Figure 2 It is a schematic diagram of the overall structure of the cleaning device of the slag cleaning mechanism of the rotary hearth furnace according to the utility model;

[0018] Figure 3 It is a schematic diagram of the overall structure of the spraying device of the slag cleaning mechanism of the rotary hearth furnace according to the utility model;

[0019] Figure 4 The utility model is a schematic diagram of the overall structure of the driving device of the slag cleaning mechanism of the rotary hearth furnace.

[0020] In the figure: 1. base; 2. cleaning device; 3. spraying device; 4. driving device; 5. movable wheel; 6. fixed seat; 7. water tank; 8. mounting frame; 20. hydraulic cylinder; 21. supporting seat; 22. motor No. 1; 23. connecting frame; 24. bristles; 25. scraper; 30. water pump; 31. mounting seat; 32. connecting pipe; 33. atomizing nozzle; 34. handle; 40. motor No. 2; 41. gear No. 1; 42. gear No. 2; 43. connecting shaft. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" 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, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" 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 according to specific circumstances.

[0024] like Figure 1-4 As shown, a slag cleaning mechanism for a rotary hearth furnace comprises a base 1, two movable wheels 5 are installed on the left and right lower ends of the base 1, a fixed seat 6 is installed on the right end of the base 1, a driving device 4 is installed on the lower end of the fixed seat 6, a cleaning device 2 is installed on the right upper end of the base 1, a water tank 7 is installed on the left upper end of the base 1, a mounting frame 8 is installed on the right upper end of the water tank 7, and a spraying device 3 is installed on the left front end of the water tank 7; the mounting frame 8 is in the shape of a U-shaped.

[0025] The cleaning device 2 includes a hydraulic cylinder 20, a support base 21 is installed on the upper end of the hydraulic cylinder 20, a No. 1 motor 22 is installed on the upper end of the support base 21, a connecting frame 23 is installed at the front end of the No. 1 motor 22, a group of bristles 24 are installed at the left end of the connecting frame 23, and a group of scrapers 25 are installed at the right end of the connecting frame 23. The hydraulic cylinder 20 is installed at the upper right part of the base 1; a plurality of scrapers 25 are distributed on the connecting frame 23 at equal distances from front to back. The scrapers 25 are aligned with the inner wall of the rotary hearth furnace, and then the rotary hearth furnace is rotated. At this time, the scrapers 25 can scrape off the slag on the inner wall, and after scraping, the No. 1 motor 22 drives the connecting frame 23 to rotate, so that the bristles 24 are aligned with the inner wall of the rotary hearth furnace, and the fine slag is further cleaned, thereby improving the cleaning effect of the device.

[0026] The spraying device 3 includes a water pump 30 and a mounting seat 31. A connecting pipe 32 is installed at the right end of the water pump 30 and the upper end of the mounting seat 31. A handle 34 is installed at the right part of the upper end of the mounting seat 31. An atomizing nozzle 33 is installed at the left part of the upper end of the mounting seat 31. The water pump 30 is installed at the left part of the front end of the water storage tank 7, and the mounting seat 31 is installed at the upper end of the mounting frame 8. The water in the water storage tank 7 is extracted by the water pump 30, and the water is transported to the atomizing nozzle 33 by the connecting pipe 32. At this time, the atomizing nozzle 33 sprays the water in atomization, thereby wetting the slag on the inner wall of the rotary hearth furnace, thereby facilitating the subsequent scraping of the slag and improving the cleaning efficiency of the device.

[0027] The driving device 4 includes a No. 2 motor 40, a No. 1 gear 41 is installed at the rear end of the No. 2 motor 40, a No. 2 gear 42 is meshed and connected at the left end of the No. 1 gear 41, a connecting shaft 43 is installed at the front end of the No. 2 gear 42, the connecting shaft 43 is installed between the two right movable wheels 5, and the No. 2 motor 40 is installed at the lower end of the fixed seat 6. The No. 1 gear 41 is driven to rotate by the No. 2 motor 40, and the No. 1 gear 41 then drives the No. 2 gear 42, and the No. 2 gear 42 further drives the connecting shaft 43 and the movable wheels 5 on both sides thereof to rotate, so as to facilitate the overall position movement of the device.

[0028] It should be noted that the utility model is a slag cleaning mechanism for a rotary hearth furnace, wherein the No. 2 motor 40 on the driving device 4 drives the No. 1 gear 41 to rotate, and the No. 1 gear 41 then drives the No. 2 gear 42, and the No. 2 gear 42 further drives the connecting shaft 43 and the movable wheels 5 on both sides thereof to rotate, so as to facilitate the device to be moved to the side of the rotary hearth furnace for slag cleaning, and then people pick up the mounting seat 31 and the atomizing nozzle 33 through the handle 34 on the spraying device 3 and move them into the rotary hearth furnace, and then use the water pump 30 to extract water from the water storage tank 7, and the water is transported to the atomizing nozzle 33 through the connecting pipe 32. Inside the nozzle 33, the atomizing nozzle 33 sprays water in atomized form, thereby moistening the slag on the inner wall of the rotary hearth furnace, thereby facilitating the subsequent scraping of the slag and improving the cleaning efficiency of the device. After the slag is moistened, the atomizing nozzle 33 is taken out, and the scraper 25 on the cleaning device 2 is aligned with the inner wall of the rotary hearth furnace, and then the rotary hearth furnace is rotated. At this time, the scraper 25 can scrape off the slag on the inner wall, and after scraping, the connecting frame 23 is driven to rotate by the No. 1 motor 22, so that the bristles 24 are aligned with the inner wall of the rotary hearth furnace, and the fine slag is further cleaned, thereby improving the cleaning effect of the device.

[0029] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A slag cleaning mechanism for a rotary hearth furnace, comprising a base (1), characterized in that: Two movable wheels (5) are installed at the left and right lower ends of the base (1); a fixed seat (6) is installed at the right end of the base (1); a driving device (4) is installed at the lower end of the fixed seat (6); a cleaning device (2) is installed at the right upper end of the base (1); a water storage tank (7) is installed at the left upper end of the base (1); a mounting frame (8) is installed at the right upper end of the water storage tank (7); and a spraying device (3) is installed at the left front end of the water storage tank (7).

2. The slag cleaning mechanism for a rotary hearth furnace according to claim 1, characterized in that: The cleaning device (2) comprises a hydraulic cylinder (20), a support seat (21) is mounted on the upper end of the hydraulic cylinder (20), a No. 1 motor (22) is mounted on the upper end of the support seat (21), a connecting frame (23) is mounted on the front end of the No. 1 motor (22), a group of bristles (24) is mounted on the left end of the connecting frame (23), a group of scrapers (25) is mounted on the right end of the connecting frame (23), and the hydraulic cylinder (20) is mounted on the upper right part of the base (1).

3. The slag cleaning mechanism for a rotary hearth furnace according to claim 1, characterized in that: The spraying device (3) comprises a water pump (30) and a mounting seat (31); a connecting pipe (32) is installed on the right end of the water pump (30) and the upper end of the mounting seat (31); a handle (34) is installed on the right part of the upper end of the mounting seat (31); an atomizing nozzle (33) is installed on the left part of the upper end of the mounting seat (31); the water pump (30) is installed on the left part of the front end of the water storage tank (7); and the mounting seat (31) is installed on the upper end of the mounting frame (8).

4. The slag cleaning mechanism for a rotary hearth furnace according to claim 1, characterized in that: The driving device (4) comprises a No. 2 motor (40), a No. 1 gear (41) is installed at the rear end of the No. 2 motor (40), a No. 2 gear (42) is meshedly connected at the left end of the No. 1 gear (41), a connecting shaft (43) is installed at the front end of the No. 2 gear (42), and the connecting shaft (43) is installed between the two right movable wheels (5), and the No. 2 motor (40) is installed at the lower end of the fixed seat (6).

5. The slag cleaning mechanism for a rotary hearth furnace according to claim 2, characterized in that: A plurality of scrapers (25) are distributed on the connecting frame (23) at equal distances from front to back.

6. The slag cleaning mechanism for a rotary hearth furnace according to claim 1, characterized in that: The mounting frame (8) is in the shape of a square.

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