Dryer mesh belt interlayer ash removal device for rotary hearth furnace

Abstract

The invention discloses a drying machine mesh belt interlayer ash removal device for a rotary hearth furnace, and relates to the technical field of rotary hearth furnaces. A cleaning mechanism comprises a first supporting plate and a second supporting plate which are fixedly connected to the top of a transverse plate, and a spiral conveyor fixedly connected to the bottom of the transverse plate; a moving plate is connected between the first supporting plate and the second supporting plate through a moving mechanism, the moving plate is in sliding connection with the transverse plate, a scraping plate is connected to the moving plate through an extrusion mechanism, first grooves are formed in the tops of the first supporting plate and the second supporting plate correspondingly, and vibrating mechanisms are arranged in the first grooves; when the scraping plate is used for cleaning dust, the vibration mechanism is used for applying a vibration effect on the mesh belt interlayer of the drying machine, dust can effectively fall off, the scraping plate can ascend and descend through the extrusion mechanism, and when the scraping plate cannot easily scrape and clean the dust on the mesh belt interlayer of the drying machine, the scraping plate is prevented from being damaged and clamped.

Description

Technical Field

[0001] The invention relates to the technical field of rotary hearth furnaces, in particular to a mesh belt interlayer ash cleaning device for a rotary hearth furnace dryer. Background Art

[0002] The direct reduction technology of the rotary hearth furnace is that the carbon-containing pellets of iron ore powder (or laterite nickel ore, vanadium-titanium magnetite, sulfuric acid slag or metallurgical dust, dust removal ash, steelmaking sludge, etc.) after batching, mixing, balling and drying are added into a rotary hearth furnace with an annular hearth and a rotatable hearth. At a hearth temperature of about 1350°C, the iron ore is reduced by carbon as the hearth rotates one circle.

[0003] The existing equipment has experienced scraper damage, jamming, and material blocking many times during actual production operation, which has caused the entire equipment to be unable to operate normally, resulting in production suspension, etc. Since the equipment problems have not been solved, the only way to do this is to manually enter the box and scrape the materials into each chute during maintenance. Due to the low space inside the box and the limited length of the box, the operators can only squat to work in the box, and the accumulation of materials has caused agglomeration and hardening, which has increased the difficulty of the operators' work and prolonged the time spent, and there are certain personal safety hazards. Summary of the invention

[0004] The object of the present invention is to provide a mesh belt interlayer ash cleaning device for a rotary hearth furnace dryer to solve the problems mentioned in the above background technology.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A mesh belt interlayer dust cleaning device for a rotary hearth furnace dryer comprises a horizontal plate, the top of which is arranged in an inclined plane, a through groove is formed through the top of the horizontal plate, and a cleaning mechanism is arranged on the horizontal plate.

[0007] The cleaning mechanism includes a first support plate and a second support plate respectively fixedly connected to the top of the transverse plate, and a screw conveyor fixedly connected to the bottom of the transverse plate. A movable plate is connected between the first support plate and the second support plate via a movable mechanism. The movable plate is slidably connected to the transverse plate. A scraper is connected to the movable plate via an extrusion mechanism. A first groove is provided on the top of each of the first support plate and the second support plate, and a vibration mechanism is provided in the first groove.

[0008] As a further solution of the present invention: the moving mechanism includes a moving motor fixedly connected to one side of the first support plate, the output end of the moving motor is fixedly connected to a screw rod, one end of the screw rod passes through the first support plate and is rotatably connected to one side of the second support plate, and the screw rod is threadedly connected to the moving plate.

[0009] As a further solution of the present invention: a straight rod is fixedly connected between the first support plate and the second support plate, and the straight rod is slidably connected to the movable plate.

[0010] As a further solution of the present invention: the extrusion mechanism includes a second groove opened on the top of the movable plate, a spring is fixedly connected in the second groove, two springs are provided, a first connecting plate is fixedly connected between one ends of the two springs, a second connecting plate is fixedly connected to the top of the first connecting plate, and the second connecting plate is fixedly connected to the scraper.

[0011] As a further solution of the present invention: the first connecting plate is slidably connected to the second groove, and both sides of the scraper are arranged to be inclined.

[0012] As a further solution of the present invention: the vibration mechanism includes a vibration motor fixedly connected in the first groove, the output end of the vibration motor is fixedly connected to a third connecting plate, the top of the third connecting plate is fixedly connected to a fourth connecting plate, one side of the fourth connecting plate is arranged to be an inclined surface, and the first guide plate and the second guide plate are respectively fixedly connected to the fourth connecting plate.

[0013] As a further solution of the present invention: the scraper is respectively fixedly connected with a third guide plate and a fourth guide plate, two of the third guide plate and the fourth guide plate are provided, the second connecting plate is provided with a material guide trough, the material guide trough is fixedly connected with a material guide pipe, and the material guide pipe is located in the through groove.

[0014] As a further solution of the present invention: the bottom of the second connecting plate is fixedly connected to a vertical plate, one side of the vertical plate is fixedly connected to a mounting plate, the mounting plate and the material guide trough are fixedly connected by bolts, the bottom of the horizontal plate is fixedly connected to a bracket, the bracket is fixedly connected to a cylinder, and the output end of the cylinder is fixedly connected to the bottom plate.

[0015] The present invention provides a mesh belt interlayer ash cleaning device for a rotary hearth furnace dryer. Compared with the prior art, it has the following beneficial effects:

[0016] (1) When using a scraper to clean dust, the present application uses a vibration mechanism to apply a vibration effect to the dryer mesh belt interlayer, which can effectively make the dust fall off, and uses a squeezing mechanism to make the scraper rise and fall. When the scraper cannot easily scrape and clean the dryer mesh belt interlayer, the scraper is prevented from being pulled or stuck.

[0017] (2) The present application provides a material guide trough and a material guide pipe to transport the cleaned dust, thereby preventing a large amount of dust from falling on the horizontal plate and affecting the movement of the movable plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1A perspective view of the present invention;

[0019] Figure 2 A three-dimensional diagram of the scraper and the guide trough of the present invention;

[0020] Figure 3 is a three-dimensional cross-sectional view of the movable plate of the present invention;

[0021] Figure 4 is a three-dimensional cross-sectional view of the second support plate of the present invention;

[0022] Figure 5 It is a three-dimensional cross-sectional view of the material guide trough of the present invention.

[0023] In the figure: 1, horizontal plate; 2, through groove; 3, cleaning mechanism; 31, first support plate; 32, second support plate; 33, screw conveyor; 34, moving mechanism; 341, moving motor; 342, screw rod; 35, moving plate; 36, extrusion mechanism; 361, second groove; 362, spring; 363, first connecting plate; 364, second connecting plate; 37, scraper; 38, first groove; 39, vibration mechanism; 391, vibration motor; 392, third connecting plate; 393, fourth connecting plate; 394, first guide plate; 395, second guide plate; 4, straight rod; 5, third guide plate; 6, fourth guide plate; 7, material guide trough; 8, material guide pipe; 9, vertical plate; 10, mounting plate; 11, bolt; 12, bracket; 13, cylinder; 14, bottom plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] Embodiment 1

[0026] See also Figure 1-4As shown, the present invention is a mesh belt interlayer cleaning device for a rotary hearth furnace dryer, comprising a horizontal plate 1, the top of the horizontal plate 1 is arranged in an inclined surface, the top of the horizontal plate 1 is penetrated by a through groove 2, and a cleaning mechanism 3 is arranged on the horizontal plate 1; the cleaning mechanism 3 comprises a first support plate 31 and a second support plate 32 respectively fixedly connected to the top of the horizontal plate 1, and a screw conveyor 33 fixedly connected to the bottom of the horizontal plate 1, a moving plate 35 is connected between the first support plate 31 and the second support plate 32 through a moving mechanism 34, and the moving plate 35 is connected to the horizontal plate 1 The movable plate 35 is slidably connected therebetween, a scraper 37 is connected to the movable plate 35 through an extrusion mechanism 36, a first groove 38 is provided on the top of each of the first support plate 31 and the second support plate 32, a vibration mechanism 39 is provided in the first groove 38, when the scraper 37 is used for cleaning, the vibration mechanism 39 is used to apply a vibration effect to the mesh belt interlayer of the dryer, so that the dust can be effectively removed, and the extrusion mechanism 36 can be used to lift the scraper 37, when the scraper 37 cannot easily scrape and clean the mesh belt interlayer of the dryer, the scraper 37 can be prevented from being pulled or stuck.

[0027] The moving mechanism 34 includes a moving motor 341 fixedly connected to one side of the first support plate 31. The moving motor 341 is electrically connected to an external power supply and is controlled by an external control program. The moving motor 341 is a three-phase asynchronous motor. A screw rod 342 is fixedly connected to the output end of the moving motor 341. One end of the screw rod 342 passes through the first support plate 31 and is rotatably connected to one side of the second support plate 32. The screw rod 342 is threadedly connected to the moving plate 35.

[0028] A straight rod 4 is fixedly connected between the first support plate 31 and the second support plate 32 , and the straight rod 4 is slidably connected to the moving plate 35 .

[0029] The extrusion mechanism 36 includes a second groove 361 opened on the top of the movable plate 35, and a spring 362 is fixedly connected in the second groove 361. Two springs 362 are provided, and a first connecting plate 363 is fixedly connected between one ends of the two springs 362. A second connecting plate 364 is fixedly connected to the top of the first connecting plate 363, and the second connecting plate 364 is fixedly connected to the scraper 37.

[0030] The first connecting plate 363 is slidably connected to the second groove 361 , and both sides of the scraper 37 are arranged to be inclined.

[0031] The vibration mechanism 39 includes a vibration motor 391 fixedly connected in the first groove 38, the vibration motor 391 is electrically connected to an external power supply and is controlled by an external control program, the output end of the vibration motor 391 is fixedly connected to a third connecting plate 392, the top of the third connecting plate 392 is fixedly connected to a fourth connecting plate 393, one side of the fourth connecting plate 393 is arranged in an inclined surface, and the fourth connecting plate 393 is respectively fixedly connected to a first guide plate 394 and a second guide plate 395. By setting the first guide plate 394 and the second guide plate 395, it is beneficial for the vibration motor 391 to apply a vibration effect to the dryer mesh belt interlayer, and the dust dropped by the vibration effect falls on 1, which is convenient for subsequent transportation to the screw conveyor 33 through the through groove 2.

[0032] Embodiment 2

[0033] Based on Example 1, see Figure 1 , Figure 2 and Figure 5 shown.

[0034] The scraper 37 is respectively fixedly connected with a third guide plate 5 and a fourth guide plate 6. By setting the third guide plate 5 and the fourth guide plate 6, the dust scraped by the scraper 37 is facilitated to fall into the material guide groove 7. Two of the third guide plates 5 and the fourth guide plates 6 are each provided. The second connecting plate 364 is provided with a material guide groove 7. The material guide groove 7 is fixedly connected with a material guide pipe 8. The material guide pipe 8 is located in the through groove 2. By setting the material guide groove 7 and the material guide pipe 8, the cleaned dust can be transported to prevent a large amount of dust from falling on the horizontal plate 1 and affecting the movement of the movable plate 35.

[0035] The bottom of the second connecting plate 364 is fixedly connected to a vertical plate 9, one side of the vertical plate 9 is fixedly connected to a mounting plate 10, the mounting plate 10 is fixedly connected to the material guide trough 7 by bolts 11, the bottom of the horizontal plate 1 is fixedly connected to a bracket 12, the bracket 12 is fixedly connected to a cylinder 13, the cylinder 13 is electrically connected to an external power supply and is controlled by an external control program, and the output end of the cylinder 13 is fixedly connected to a bottom plate 14.

[0036] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0037] The working principle of the present invention is as follows: the device is placed under the mesh belt interlayer of the dryer, and the cylinder 13 is used to lift the horizontal plate 1, so that the scraper 37 and the fourth connecting plate 393 can fit on the mesh belt interlayer of the dryer. When cleaning, the vibration motor 391 and the moving motor 341 are turned on, and the vibration motor 391 is used to generate vibration, so that the vibration is transmitted to the mesh belt interlayer of the dryer through the third connecting plate 392 and the fourth connecting plate 393, which is conducive to the dust on the mesh belt interlayer of the dryer falling off, and the moving motor 341 drives the moving plate 35 to reciprocate through the screw rod 342, thereby driving the scraper 37 to reciprocate, and the scraper 37 is used to clean the mesh belt interlayer of the dryer. In this process, when the scraper 37 cannot When the dryer mesh belt interlayer is easily scraped and cleaned, the spring 362 can be used to make the first connecting plate 363 slide in the second groove 361, so as to realize the lifting and lowering of the scraper 37 to prevent the scraper 37 from being pulled or stuck. After that, the cleaned dust slides along the surface of the scraper 37 into the guide groove 7 under the action of the third guide plate 5 and the fourth guide plate 6, and then falls into the screw conveyor 33 through the guide pipe 8, while a small amount of dust falls on the cross plate 1. After that, under the action of the movement of the movable plate 35 and the action of the inclined surface of the cross plate 1, the dust falls into the screw conveyor 33 through the through groove 2, and then the scraped dust can be transported by the screw conveyor 33.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mesh belt interlayer ash cleaning device for a rotary hearth furnace dryer, comprising a horizontal plate (1), Features: The top of the horizontal plate (1) is arranged in an inclined surface, a through groove (2) is provided through the top of the horizontal plate (1), and a cleaning mechanism (3) is arranged on the horizontal plate (1); The cleaning mechanism (3) comprises a first support plate (31) and a second support plate (32) respectively fixedly connected to the top of the transverse plate (1), and a screw conveyor (33) fixedly connected to the bottom of the transverse plate (1); a movable plate (35) is connected between the first support plate (31) and the second support plate (32) via a movable mechanism (34); the movable plate (35) is slidably connected to the transverse plate (1); a scraper (37) is connected to the movable plate (35) via a squeezing mechanism (36); a first groove (38) is provided on the top of each of the first support plate (31) and the second support plate (32); a vibration mechanism (39) is provided in the first groove (38).

2. A mesh belt interlayer dust cleaning device for a rotary hearth furnace dryer according to claim 1, Features: The moving mechanism (34) comprises a moving motor (341) fixedly connected to one side of the first support plate (31); the output end of the moving motor (341) is fixedly connected to a screw rod (342); one end of the screw rod (342) passes through the first support plate (31) and is rotatably connected to one side of the second support plate (32); the screw rod (342) is threadedly connected to the moving plate (35).

3. The mesh belt interlayer dust cleaning device for a rotary hearth furnace dryer according to claim 1, Features: A straight rod (4) is fixedly connected between the first support plate (31) and the second support plate (32), and the straight rod (4) is slidably connected to the movable plate (35).

4. The mesh belt interlayer dust cleaning device for a rotary hearth furnace dryer according to claim 1, Features: The squeezing mechanism (36) comprises a second groove (361) formed on the top of the movable plate (35), a spring (362) being fixedly connected in the second groove (361), two springs (362) being provided, a first connecting plate (363) being fixedly connected between one ends of the two springs (362), a second connecting plate (364) being fixedly connected to the top of the first connecting plate (363), and the second connecting plate (364) being fixedly connected to the scraper (37).

5. A mesh belt interlayer dust cleaning device for a rotary hearth furnace dryer according to claim 4, Features: The first connecting plate (363) is slidably connected to the second groove (361), and both sides of the scraper (37) are arranged to be inclined.

6. The rotary hearth furnace dryer mesh belt interlayer dust cleaning device according to claim 1, Features: The vibration mechanism (39) comprises a vibration motor (391) fixedly connected in the first groove (38); the output end of the vibration motor (391) is fixedly connected to a third connecting plate (392); the top of the third connecting plate (392) is fixedly connected to a fourth connecting plate (393); one side of the fourth connecting plate (393) is provided with an inclined surface; and the first guide plate (394) and the second guide plate (395) are respectively fixedly connected to the fourth connecting plate (393).

7. The mesh belt interlayer dust cleaning device for a rotary hearth furnace dryer according to claim 4, Features: The scraper (37) is respectively fixedly connected to a third guide plate (5) and a fourth guide plate (6), two of each of the third guide plate (5) and the fourth guide plate (6), the second connecting plate (364) is provided with a material guide groove (7), the material guide groove (7) is fixedly connected to a material guide pipe (8), and the material guide pipe (8) is located in the through groove (2).

8. The mesh belt interlayer dust cleaning device for a rotary hearth furnace dryer according to claim 4, Features: The bottom of the second connecting plate (364) is fixedly connected to a vertical plate (9), one side of the vertical plate (9) is fixedly connected to a mounting plate (10), the mounting plate (10) is fixedly connected to the material guide trough (7) via bolts (11), the bottom of the horizontal plate (1) is fixedly connected to a bracket (12), the bracket (12) is fixedly connected to a cylinder (13), and the output end of the cylinder (13) is fixedly connected to a bottom plate (14).

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