Deoxidation furnace with dust removal structure

Abstract

The deoxidizing furnace comprises a deoxidizing furnace body, a fixing frame is installed on the outer side wall of the deoxidizing furnace body, dedusting mechanisms are installed on the left side and the right side of the fixing frame in an inserted mode, each dedusting mechanism comprises a sliding pipe, a filter screen and a baffle plate, through holes are formed in the left side and the right side of the fixing frame, and the sliding pipes are installed in the through holes in a sliding mode; a filter screen is installed on the upper wall of the sliding pipe in a screwed mode and can be inserted into the through hole, a shielding plate is installed on the upper wall of the filter screen, an electric control push rod is installed on the lower wall of the fixing frame in an inserted mode, one end of a connecting plate is installed at the output end of the electric control push rod, and the other end of the connecting plate is welded to the side wall of the sliding pipe. According to the device, a sliding pipe arranged in the dust removal mechanism can retract into a fixing frame, and a baffle plate above the dust removal mechanism can also shield a through hole, so that the situation that molten steel easily enters the dust removal mechanism to cause damage to the dust removal mechanism when the deoxidizing furnace main body is fed or discharged is avoided.

Description

Technical Field

[0001] This patent relates to the field of deoxidation furnaces, specifically a deoxidation furnace with a dust removal structure. Background Art

[0002] The deoxidation furnace, also known as the ladle furnace, is the most widely used refining equipment outside the furnace. It strengthens the thermodynamic and kinetic conditions of the metallurgical reaction through arc heating, reducing atmosphere in the furnace, white slag refining, gas stirring, etc., so that the molten steel can achieve refining effects such as deoxidation, desulfurization, alloying, and temperature increase in a short time.

[0003] In a deoxidation furnace with a dust removal structure proposed in publication number CN220413444U, the purpose of dust removal is achieved through the arrangement of an air suction hopper, an annular pipe, a connecting pipe, a water storage tank, a slider, a connecting cylinder, a dust removal fan, a fixed net, a screw, a mounting plate and a servo motor;

[0004] However, the deoxidation furnace proposed in the above document does not have a protective mechanism on the dust removal structure, resulting in molten steel easily entering the dust removal structure when the deoxidation furnace is loaded or discharged, causing damage to the dust removal structure. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this patent is to provide a deoxidation furnace with a dust removal structure.

[0006] The technical solution adopted by this patent to solve its technical problem is: a deoxidation furnace with a dust removal structure, comprising a deoxidation furnace body, a fixing frame is installed on the outer side wall of the deoxidation furnace body, and dust removal mechanisms are inserted and installed on both sides of the fixing frame;

[0007] The dust removal mechanism includes a sliding tube, a filter screen and a shielding plate. Through holes are opened on the left and right sides of the fixing frame. The sliding tube is slidably installed in the through hole. The upper wall of the sliding tube is screwed with a filter screen, and the filter screen can be inserted into the through hole. The upper wall of the filter screen is installed with a shielding plate, and the shielding plate can shield the through hole.

[0008] An electric control push rod is inserted into and installed on the lower wall of the fixing frame. One end of a connecting plate is installed on the output end of the electric control push rod. The other end of the connecting plate is welded to the side wall of the sliding tube.

[0009] Furthermore, the filter screen includes a lower connecting ring, a support rod, an upper connecting ring and a filter screen. The outer side of the lower connecting ring is provided with an external thread, and the lower connecting ring is screwed into the sliding tube through the external thread. One end of the support rod is installed on the upper wall of the lower connecting ring, and the other end of the support rod is installed on the upper connecting ring. The lower wall of the upper connecting ring and the upper wall of the lower connecting ring are both provided with slots, the filter screen is inserted and installed in the slots, and the baffle is installed on the upper wall of the upper connecting ring.

[0010] Furthermore, a rod is rotatably mounted on the lower wall of the baffle, the rod is arranged in the middle of the filter, a fan blade is mounted at the end of the rod, and a cleaning brush is mounted on the side wall of the rod, and the cleaning brush can fit against the inner wall of the filter.

[0011] Furthermore, the side walls of the two sliding tubes are each installed with a smoke exhaust mechanism, which includes a smoke outlet pipe, an exhaust fan and a bag dust collector. One end of the smoke outlet pipe passes through the side wall of the sliding tube and is connected to the inner cavity of the sliding tube. The other end of the smoke outlet pipe is installed with an exhaust fan, which is electrically connected to an external power supply, and the output end of the exhaust fan is connected to the bag dust collector through a pipe.

[0012] Furthermore, a connecting ring is sleeved on the outer side of the smoke outlet pipe, and a heat insulation plate is installed on the side wall of the connecting ring.

[0013] Furthermore, the output end of the bag filter is connected to an external chimney through a pipeline.

[0014] The beneficial effects of this patent are:

[0015] The sliding tube provided in the dust removal mechanism of the device can be retracted into the interior of the fixed frame, and the shielding plate above the dust removal mechanism can also shield the through hole, so as to prevent the molten steel from easily entering the dust removal mechanism when the deoxidation furnace body is loaded or discharged, thereby preventing the dust removal mechanism from being damaged.

[0016] In addition, the device also provides an insertion rod, fan blades and a cleaning brush under the shielding plate, so that the filter can be cleaned, thereby avoiding clogging of the filter and affecting the dust removal effect of the dust removal mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of this patent.

[0018] Figure 2 This is a schematic diagram of the structure of the patented dust removal mechanism.

[0019] Explanation of the accompanying reference numerals: 1 deoxidation furnace body, 2 fixing frame, 3 dust removal mechanism, 31 sliding tube, 32 filter screen, 33 baffle plate, 4 through hole, 5 electric push rod, 6 connecting plate, 7 slot, 8 plug rod, 9 fan blade, 10 cleaning brush, 11 smoke exhaust mechanism, 111 smoke outlet pipe, 112 exhaust fan, 113 bag filter, 12 connecting ring, 13 heat insulation board, 321 lower connecting ring, 322 support rod, 323 upper connecting ring, 324 filter screen. DETAILED DESCRIPTION

[0020] The present invention is further described below with reference to specific embodiments. It should be understood that these embodiments are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this patent, those skilled in the art may make various changes or modifications to the present invention, and that these equivalent forms also fall within the scope defined by the appended claims.

[0021] See also Figure 1 、 Figure 2 This is a schematic diagram of the structure of the patent, a deoxidation furnace with a dust removal structure, including a deoxidation furnace body 1, a fixing frame 2 is installed on the outer wall of the deoxidation furnace body 1, and dust removal mechanisms 3 are inserted and installed on both the left and right sides of the fixing frame 2;

[0022] The dust removal mechanism 3 includes a sliding tube 31, a filter screen 32, and a shielding plate 33. Through holes 4 are provided on both the left and right sides of the fixed frame 2. The sliding tube 31 is slidably installed in the through hole 4. The filter screen 32 is screwed into the upper wall of the sliding tube 31 and can be inserted into the through hole 4. The shielding plate 33 is installed on the upper wall of the filter screen 32 to shield the through hole 4.

[0023] After the exhaust fan 112 is started, the dust removal mechanism 3 can suck the flue gas generated by the deoxidation furnace body 1 into the sliding pipe 31, and then enter the exhaust mechanism 11 through the sliding pipe 31, and the dust in the flue gas is filtered out by the bag dust collector 113 in the exhaust mechanism 11;

[0024] When the deoxidation furnace body 1 is loading or discharging, the sliding tube 31 can be driven downward by the electric push rod 5 to sink the filter 32 into the through hole 4, and the through hole 4 is shielded by the shielding plate 33, so that the dust removal mechanism 3 is protected by the fixing frame 2 to prevent the dust removal mechanism 3 from contacting with the high-temperature molten steel, which may cause damage to the structure of the dust removal mechanism 3;

[0025] An electric control push rod 5 is inserted into the lower wall of the fixing frame 2, and one end of a connecting plate 6 is installed on the output end of the electric control push rod 5, and the other end of the connecting plate 6 is welded to the side wall of the sliding tube 31;

[0026] The electric push rod 5 is electrically connected to an external power source, and its extension and retraction are controlled by an external controller.

[0027] The filter screen 32 includes a lower connecting ring 321, a support rod 322, an upper connecting ring 323 and a filter screen 324. The outer side of the lower connecting ring 321 is provided with an external thread, and the lower connecting ring 321 is screwed into the sliding tube 31 through the external thread. One end of the support rod 322 is installed on the upper wall of the lower connecting ring 321, and the other end of the support rod 322 is installed on the upper connecting ring 323. The lower wall of the upper connecting ring 323 and the upper wall of the lower connecting ring 321 are both provided with a slot 7. The filter screen 324 is inserted into the slot 7. The baffle 33 is installed on the upper wall of the upper connecting ring 323.

[0028] The filter 324 proposed herein is inserted and installed in the slot 7 , and when the filter 324 is damaged, it can be easily replaced.

[0029] The lower wall of the shielding plate 33 is rotatably mounted with an insertion rod 8, which is arranged in the middle of the filter 32. A fan blade 9 is installed at the end of the insertion rod 8. A cleaning brush 10 is installed on the side wall of the insertion rod 8. The cleaning brush 10 can fit the inner wall of the filter 324.

[0030] When the exhaust fan 112 is started, the flue gas generated by the deoxidation furnace main body 1 will be sucked into the sliding tube 31. When the flue gas enters the sliding tube 31, it will drive the fan blades 9 to rotate, which will drive the insertion rod 8 and the cleaning brush 10 on the outside of the insertion rod 8 to rotate, thereby cleaning the filter 324 through the cleaning brush 10 to avoid clogging of the filter 324 and affecting the entry of flue gas.

[0031] The side walls of the two sliding tubes 31 are both equipped with a smoke exhaust mechanism 11, which includes a smoke outlet pipe 111, an exhaust fan 112 and a bag dust collector 113. One end of the smoke outlet pipe 111 passes through the side wall of the sliding tube 31 and is connected to the inner cavity of the sliding tube 31. The other end of the smoke outlet pipe 111 is equipped with an exhaust fan 112, which is electrically connected to an external power supply. The output end of the exhaust fan 112 is connected to the bag dust collector 113 through a pipeline.

[0032] The outer side of the smoke outlet pipe 111 is sleeved with a connecting ring 12, and the side wall of the connecting ring 12 is installed with a heat insulation board 13;

[0033] In order to prevent the high temperature of the side wall of the deoxidation furnace body 1 from burning the smoke outlet pipe 111, the device is provided with a connecting ring 12 and a heat insulation plate 13 on the outside of the smoke outlet pipe 111. The heat insulation plate 13 separates the smoke outlet pipe 111 from the deoxidation furnace body 1 to prevent the two from contacting each other, thereby preventing the smoke outlet pipe 111 from being burned.

[0034] The heat insulation board 13 used herein is a high-temperature insulation board, and its temperature resistance can reach above 700° C., or even above 1000° C.

[0035] The output end of the bag filter 113 is connected to an external chimney through a pipeline.

[0036] When the present invention is working, when the deoxidation furnace body 1 is loading or discharging, the sliding tube 31 can be driven downward by the electric push rod 5, so that the filter 32 is sunk into the through hole 4, and the through hole 4 is shielded by the shielding plate 33, so that the dust removal mechanism 3 is protected by the fixed frame 2;

[0037] When the deoxidation furnace main body 1 is refining and deoxidizing the internal molten steel, the electric control push rod 5 can be controlled to retract so that the dust removal mechanism 3 is placed above the deoxidation furnace main body 1, and then the exhaust fan 112 is started. The dust removal mechanism 3 can suck the flue gas generated by the deoxidation furnace main body 1 into the sliding pipe 31, and then enter the smoke exhaust mechanism 11 through the sliding pipe 31, and the dust in the flue gas is filtered out by the bag dust collector 113 in the smoke exhaust mechanism 11.

[0038] It will be apparent to those skilled in the art that this patent is not limited to the details of the exemplary embodiments described above, and that this patent can be implemented in other specific forms without departing from the spirit or essential characteristics of this patent. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of this patent is defined by the appended claims rather than the foregoing description, and it is intended that all changes that fall within the meaning and range of equivalents of the claims be encompassed within this patent. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0039] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A deoxidation furnace with a dust removal structure, comprising a deoxidation furnace body (1), characterized in that: A fixing frame (2) is installed on the outer side wall of the deoxidation furnace body (1), and dust removal mechanisms (3) are inserted and installed on both the left and right sides of the fixing frame (2); The dust removal mechanism (3) includes a sliding tube (31), a filter screen (32) and a shielding plate (33). Through holes (4) are provided on both the left and right sides of the fixing frame (2). The sliding tube (31) is slidably mounted in the through hole (4). The upper wall of the sliding tube (31) is screwed with a filter screen (32). The filter screen (32) can be inserted into the through hole (4). The upper wall of the filter screen (32) is equipped with a shielding plate (33). The shielding plate (33) can shield the through hole (4). An electric control push rod (5) is inserted into the lower wall of the fixing frame (2), one end of a connecting plate (6) is installed at the output end of the electric control push rod (5), and the other end of the connecting plate (6) is welded to the side wall of the sliding tube (31).

2. The deoxidation furnace with a dust removal structure according to claim 1, characterized in that: The filter screen (32) comprises a lower connecting ring (321), a support rod (322), an upper connecting ring (323) and a filter screen (324). The outer side of the lower connecting ring (321) is provided with an external thread, and the lower connecting ring (321) is screwed into the sliding tube (31) through the external thread. One end of the support rod (322) is installed on the upper wall of the lower connecting ring (321), and the other end of the support rod (322) is installed on the upper connecting ring (323). The lower wall of the upper connecting ring (323) and the upper wall of the lower connecting ring (321) are both provided with a slot (7). The filter screen (324) is inserted into the slot (7), and the shielding plate (33) is installed on the upper wall of the upper connecting ring (323).

3. The deoxidation furnace with a dust removal structure according to claim 2, characterized in that: A plug rod (8) is rotatably mounted on the lower wall of the shielding plate (33), the plug rod (8) is arranged in the middle of the filter screen (32), a fan blade (9) is mounted at the end of the plug rod (8), and a cleaning brush (10) is mounted on the side wall of the plug rod (8), and the cleaning brush (10) can fit the inner wall of the filter screen (324).

4. The deoxidation furnace with a dust removal structure according to claim 1, characterized in that: The side walls of the two sliding tubes (31) are both equipped with a smoke exhaust mechanism (11), the smoke exhaust mechanism (11) comprising a smoke outlet pipe (111), an exhaust fan (112) and a bag dust collector (113), one end of the smoke outlet pipe (111) passes through the side wall of the sliding tube (31) and is connected to the inner cavity of the sliding tube (31), the other end of the smoke outlet pipe (111) is equipped with an exhaust fan (112), the exhaust fan (112) is electrically connected to an external power supply, and the output end of the exhaust fan (112) is connected to the bag dust collector (113) through a pipeline.

5. The deoxidation furnace with a dust removal structure according to claim 4, characterized in that: A connecting ring (12) is sleeved on the outer side of the smoke outlet pipe (111), and a heat insulation plate (13) is installed on the side wall of the connecting ring (12).

6. The deoxidation furnace with a dust removal structure according to claim 4, characterized in that: The output end of the bag filter (113) is connected to an external chimney through a pipeline.

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