Sintered iron powder impurity cleaning device for reduction furnace

Abstract

The utility model relates to a reduction furnace sintered iron powder sundry cleaning device which comprises a fixed installation frame, a cleaning roller located above sintered iron powder and a driving mechanism driving the cleaning roller to rotate, the cleaning roller comprises a roller shaft extending left and right, the roller shaft is fixedly connected with bristles distributed in a spiral shape, and the bristles are fixedly connected with a motor. Two ends of the roll shaft are respectively coupled on two plummer blocks, the plummer blocks are fixed on a bearing seat plate through bolts, two sides of the mounting frame are fixedly connected with mounting plates, the mounting plates are fixedly connected with at least two adjusting screw rods upwards penetrating through the bearing seat plate, nuts are arranged on the adjusting screw rods on the upper side and the lower side of the bearing seat plate, and the adjusting screw rods penetrate through the adjusting screw rods on the upper side and the lower side of the bearing seat plate. Sundry particles are swept and conveyed towards one side through the spiral bristles, so that sundries falling on iron powder can be effectively swept, the sundries are prevented from entering the next procedure, and the quality of iron powder finished products is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of reduction furnaces, and specifically refers to a device for cleaning sundries from sintered iron powder in a reduction furnace. Background Art

[0002] The belt-type fine reduction furnace is applied to the secondary reduction production process of producing reduced iron powder and atomized iron powder. This process is a key process in the production of reduced iron powder and atomized iron powder. Through the treatment of this process, the carbon, oxygen, and sulfur contents of the iron powder are further reduced, the iron content is relatively increased, and at the same time, the work hardening of the iron powder generated in the previous process is eliminated. The quality control of this process directly determines the final chemical composition, physical and technological properties of the iron powder.

[0003] In the existing belt-type fine reduction furnace, iron oxide powder is conveyed by a steel belt. The steel belt bypasses the driving roller and the driven roller, and the steel belt drives the iron powder to be conveyed in the muffle. During the conveying process, hydrogen burns in the muffle to reduce the iron oxide powder into iron powder. Finally, a layer of sintered iron powder layer is formed on the steel belt. After the final iron powder layer falls, it needs to be crushed and enter the next iron powder processing process. For example, the utility model with the publication number CN218491808U discloses a belt-type fine reduction furnace.

[0004] Since when burning in the muffle, water vapor acts on the inside of the muffle, certain scale and other sundries will fall onto the output iron powder layer. If these sundries are not cleaned, they will enter the next process along with the iron powder, thus affecting the purity of the final iron powder. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a device for cleaning sundries from sintered iron powder in a reduction furnace.

[0006] The utility model is realized through the following technical solutions. A device for cleaning sundries from sintered iron powder in a reduction furnace is provided, which includes a fixed mounting frame, a cleaning roller located above the sintered iron powder, and a driving mechanism for driving the cleaning roller to rotate. The cleaning roller includes a roller shaft extending left and right. Helically arranged bristles are fixedly connected to the roller shaft. Both ends of the roller shaft are axially connected to two pedestal bearings respectively. The pedestal bearings are fixed to the bearing seat plate by bolts. Mounting plates are fixedly connected to both sides of the mounting frame. At least two adjusting screws passing upward through the bearing seat plate are fixedly connected to the mounting plates. Nuts are installed on the adjusting screws on both the upper and lower sides of the bearing seat plate.

[0007] In this solution, the driving mechanism drives the cleaning roller to rotate, so that the debris particles are swept and conveyed to one side through the spiral bristles. The two ends of the cleaning roller are respectively supported on two bearing seat plates. By adjusting the position of the nut on the adjusting screw, the height of the bearing seat plate can be adjusted, thereby adjusting the height of the cleaning roller, so that the bristles on the cleaning roller just contact the sintered iron powder, preventing ineffective cleaning of debris due to poor contact or excessive contact wear of the sintered iron powder resulting in losses.

[0008] As an optimization, it further includes a horizontally arranged iron powder support plate, which supports the sintered iron powder output by the reduction furnace steel belt, and the cleaning roller is located above the iron powder support plate. Since the reduction furnace steel belt will have certain up and down fluctuations during the conveying process, if the sintered iron powder on the reduction furnace steel belt is cleaned, the height of the upper end surface of the sintered iron powder is unstable. In this solution, the sintered iron powder is conveyed from the reduction furnace steel belt above the driven roller of the reduction furnace to the iron powder support plate, so as to support the sintered iron powder sintered into an integral block structure through the iron powder support plate, making the upper end surface of the sintered iron powder move stably, which is convenient for cleaning.

[0009] As an optimization, it further includes a debris box located at one end of the cleaning roller. The debris box in this solution is used to hold the debris swept to this end.

[0010] As an optimization, the driving mechanism includes a driven sprocket fixedly connected to one end of the roller shaft and a driving motor fixedly connected to the mounting frame. An active sprocket is installed on the driving motor, and the active sprocket is connected to the driven sprocket through a transmission chain. The driving motor in this solution realizes the rotation of the cleaning roller through the transmission chain.

[0011] As an optimization, a tensioning wheel seat is bolted to the mounting frame, and the bolt connection holes on the mounting frame are long holes. A tensioning sprocket that fits the transmission chain is axially connected to the tensioning wheel seat. The tensioning of the transmission chain is realized through the tensioning sprocket, and the mounting holes of the tensioning wheel seat are long holes, so as to facilitate the adjustment of the position and adapt to the adjustment of the up and down position of the driven sprocket.

[0012] The beneficial effects of the present utility model are as follows: A cleaning device for debris on sintered iron powder in a reduction furnace of the present utility model sweeps and conveys debris particles to one side through spiral bristles, so that the debris falling on the iron powder can be effectively cleaned, preventing the debris from entering the next process and ensuring the quality of the iron powder finished product. Description of the Drawings

[0013] Figure 1 It is a front view of the present utility model in the use state;

[0014] Figure 2 It is a front view of the present utility model;

[0015] Figure 3 It is a rear view of the present utility model;

[0016] Figure 4 For the present utility model Figure 2 right view;

[0017] As shown in the figure:

[0018] 1. Reduction furnace driven roller, 2. Reduction furnace muffle, 3. Reduction furnace steel belt, 4. Iron powder support plate, 5. Mounting frame, 6. Cleaning roller, 7. Sintered iron powder, 8. Roller shaft, 9. Bearing with housing, 10. Bearing seat plate, 11. Mounting plate, 12. Adjusting screw, 13. Driven sprocket, 14. Driving sprocket, 15. Driving motor, 16. Tensioning sprocket, 17. Tensioning wheel seat, 18. Debris box. Specific embodiments

[0019] To clearly illustrate the technical features of this solution, the following is an elaboration of this solution through specific embodiments.

[0020] As Figures 1 to 4 shown, a device for cleaning debris of sintered iron powder in a reduction furnace of the present utility model includes a fixed mounting frame 5, a cleaning roller 6 located above the sintered iron powder 7, and a driving mechanism for driving the cleaning roller 6 to rotate. The mounting frame 5 is fixed at the outlet position of the reduction furnace. It further includes a horizontally arranged iron powder support plate 4. The iron powder support plate 4 is made of steel plate and is horizontally fixed at the upper end of the mounting frame 5. The upper end surface of the iron powder support plate 4 is flush with the upper end surface of the reduction furnace steel belt 3, and the distance between the end of the iron powder support plate 4 close to the reduction furnace steel belt 3 and the reduction furnace steel belt 3 is preferably as small as possible, so as to facilitate the iron powder support plate 4 to support the sintered iron powder 7 output by the reduction furnace steel belt. The cleaning roller 6 is located above the iron powder support plate 4.

[0021] The purpose of setting the iron powder support plate 4 is that during the transportation process of the reduction furnace steel belt, there will be certain up-and-down fluctuations. When cleaning the sintered iron powder on the reduction furnace steel belt, the height of the upper end surface of the sintered iron powder is unstable. By setting the iron powder support plate 4, the sintered iron powder is transported from the reduction furnace steel belt above the reduction furnace driven roller to the iron powder support plate 4, so as to support the sintered iron powder sintered into an integral block structure through the iron powder support plate, making the upper end surface of the sintered iron powder move stably and facilitating cleaning. Since the sintered iron powder is in an integral block structure, the sintered iron powder on the reduction furnace steel belt will push the sintered iron powder on the iron powder support plate 4 to continue moving forward.

[0022] The cleaning roller 6 includes a roller shaft 8 extending left and right. Brush hairs arranged in a spiral shape are fixedly connected to the roller shaft 8. The end of the lowermost brush hair is in contact with the upper end surface of the sintered iron powder. Since the sintered iron powder has been sintered into a block, slight contact will not peel off the iron powder, but the contact should not be too tight. Therefore, it is necessary to adjust the height of the cleaning roller 6 to achieve a suitable contact effect.

[0023] In order to achieve the height adjustment of the cleaning roller 6, both ends of the roller shaft 8 are respectively pivotally connected to two pedestal bearings 9, and the pedestal bearings 9 are fixed to the bearing seat plate 10 by bolts. Both sides of the mounting frame 5 are fixedly connected with mounting plates 11, and the two mounting plates 11 are respectively located below the two bearing seat plates 10. At least two adjusting screws 12 that penetrate upward through the bearing seat plate 10 are fixedly connected to the mounting plate 11. Nuts are installed on the adjusting screws 12 on both the upper and lower sides of the bearing seat plate 10. Therefore, by adjusting the heights of the two nuts, the height of the bearing seat plate 10 can be adjusted.

[0024] It also includes a debris box 18 located at one end of the cleaning roller 6. Since the brush hairs are spiral, the moving direction of the contact position between the brush hairs and the sintered iron powder is opposite to the moving direction of the sintered iron powder. The debris is swept to one end by the spirally arranged brush hairs. The debris box 18 has an upper opening structure and is used to hold the swept debris.

[0025] The driving mechanism and the debris box are respectively located at both ends of the roller shaft 8, which is convenient for layout. The driving mechanism includes a driven sprocket 13 fixedly connected to one end of the roller shaft 8 and a driving motor 15 fixedly connected to the mounting frame 5. The driving motor 15 is located below the iron powder support plate 4. A driving sprocket 14 is installed on the driving motor 15, and the driving sprocket 14 is connected to the driven sprocket 13 through a transmission chain.

[0026] A tensioning wheel seat 17 is bolted to the mounting frame 5, and the bolt connection holes on the mounting frame 5 are long holes. The extending direction of the long holes is perpendicular to the transmission chain. A tensioning sprocket 16 that fits the transmission chain is pivotally connected to the tensioning wheel seat 17, so as to facilitate the position adjustment of the tensioning sprocket 16 to adapt to the up and down position adjustment of the driven sprocket.

[0027] The usage method of the present utility model:

[0028] When the reduction furnace is working, the oxidized iron powder is conveyed by the reduction furnace steel belt 3 of the reduction furnace. The original furnace steel belt 3 bypasses the reduction furnace driving roller and the reduction furnace driven roller 1. The original furnace steel belt 3 drives the iron powder to be conveyed in the muffle 2. During the conveying process, hydrogen burns in the muffle to reduce the oxidized iron powder into iron powder, and finally a layer of sintered iron powder 7 that is sintered into blocks is formed on the original furnace steel belt 3.

[0029] The sintered iron powder 7 is conveyed from the reduction furnace steel belt 3 above the reduction furnace driven roller 1 to the iron powder support plate 4. The driving mechanism drives the cleaning roller 6 to rotate, so as to sweep and convey the debris particles to one side through the spiral brush hairs and discharge them into the debris box 18.

[0030] Both ends of the cleaning roller 6 are respectively supported on two bearing seat plates 10. By adjusting the position of the nut on the adjusting screw 12, the height of the bearing seat plate 10 can be adjusted, thereby adjusting the height of the cleaning roller 6, so that the bristles on the cleaning roller 6 just contact the sintered iron powder 7, preventing ineffective cleaning of sundries due to poor contact or loss caused by excessive contact and wear of the sintered iron powder 7.

[0031] Certainly, the above description is not limited to the above examples. The technical features not described in the present utility model can be achieved by or adopted from the prior art, and will not be elaborated here; the above embodiments and drawings are only used to illustrate the technical solutions of the present utility model and are not limitations to the present utility model. The present utility model has been described in detail with reference to the preferred embodiments. Those of ordinary skill in the art should understand that any changes, modifications, additions or substitutions made by those of ordinary skill in the art within the scope of the essence of the present utility model do not depart from the purpose of the present utility model and should also fall within the scope of protection of the claims of the present utility model.

Claims

1. A cleaning device for impurities in sintered iron powder in a reduction furnace, characterized in that: It includes a fixed mounting bracket (5), a cleaning roller (6) located above the sintered iron powder (7), and a driving mechanism for driving the cleaning roller (6) to rotate. The cleaning roller (6) includes a roller shaft (8) extending left and right. Helically arranged bristles are fixedly connected to the roller shaft (8). Both ends of the roller shaft (8) are respectively axially connected to two pedestal bearings (9). The pedestal bearings (9) are fixed to the bearing seat plate (10) by bolts. Mounting plates (11) are fixedly connected to both sides of the mounting bracket (5). At least two adjusting screws (12) that pass upward through the bearing seat plate (10) are fixedly connected to the mounting plates (11). Nuts are installed on the adjusting screws (12) on both the upper and lower sides of the bearing seat plate (10).

2. The impurity cleaning device for sintered iron powder in a reduction furnace according to claim 1, wherein: It further includes a horizontally arranged iron powder support plate (4). The iron powder support plate (4) supports the sintered iron powder (7) output by the reduction furnace steel belt (3). The cleaning roller (6) is located above the iron powder support plate (4).

3. The impurity cleaning device for sintered iron powder in a reduction furnace according to claim 1, characterized in that: It further includes a debris box (18) located at one end of the cleaning roller (6).

4. A cleaning device for impurities in sintered iron powder of a reduction furnace according to claim 1, characterized in that: The driving mechanism includes a driven sprocket (13) fixedly connected to one end of the roller shaft (8) and a driving motor (15) fixedly connected to the mounting bracket (5). A driving sprocket (14) is installed on the driving motor (15). The driving sprocket (14) and the driven sprocket (13) are connected by a transmission chain.

5. The impurity cleaning device for sintered iron powder in a reduction furnace according to claim 4, wherein: A tensioning wheel seat (17) is bolted to the mounting bracket (5), and the bolt connection holes on the mounting bracket (5) are elongated holes. A tensioning sprocket (16) that fits with the transmission chain is axially connected to the tensioning wheel seat (17).

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