Centrifugal classification device for high-temperature atomized aluminum powder

Abstract

The utility model relates to a centrifugal grading device for high-temperature atomized aluminum powder, which comprises a vertical sorting box body, a sorting motor and a sorting impeller, and has the technical key points that a tapered receiving disc with a narrow upper part and a wide lower part is arranged in the lower part of the vertical sorting box body, a feeding pipe is arranged in the center of the bottom of the vertical sorting box body, and the upper end of the feeding pipe is fixedly connected with the upper end of the tapered receiving disc; an air supplementing cavity is formed between the conical material receiving disc and the bottom face of the vertical sorting box body, an air inlet corresponding to the lower portion of the air supplementing cavity is formed in the side wall of the vertical sorting box body, an air spraying pipe set communicated with the air supplementing cavity is arranged on the upper surface of the conical material receiving disc, and outlets of all air spraying pipes of the air spraying pipe set face the side wall of the vertical sorting box body. A plurality of coarse material outlets are formed in the positions, corresponding to the low-position ends of the conical material receiving discs, of the side wall of the vertical sorting box body, an annular material receiving cavity surrounding the coarse material outlets is formed in the outer side of the vertical sorting box body, a coarse material discharging pipe is arranged at the bottom of the annular material receiving cavity, and a fine material discharging pipe is arranged at the top of the vertical sorting box body. The device further improves the sorting precision and enhances the sorting effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to aluminum powder production equipment technical field, concretely relates to a centrifugal classification device of high temperature atomized aluminum powder. BACKGROUND

[0002] At present, the aluminum powder produced by atomization method needs to enter the classifier for grading treatment after being output from the atomizer, so that the aluminum powder products with different particle sizes are obtained.

[0003] The centrifugal classification device is a common classification device. For example, CN 221869319 U discloses a centrifugal classification device of high temperature atomized aluminum powder, which comprises a discharge cone, a classification shell and a top cover arranged in sequence from bottom to top, an upper part in the classification shell is provided with a classification impeller, an upper part of the top cover is provided with a fine material collecting box communicated with the classification impeller, a fine material outlet is arranged in the fine material collecting box, a driving mechanism is arranged on the top of the fine material collecting box and is in transmission connection with the classification impeller, a flow splitting assembly is arranged in the classification shell below the classification impeller, a feeding pipe is arranged on the discharge cone, the outlet of the feeding pipe extends into the classification shell below the flow splitting assembly, an air supplementing box is arranged between the discharge cone and the classification shell, and an air supplementing pipe is arranged on the air supplementing box. The device improves the classification precision and efficiency to a certain extent. However, the following problems still exist: the air classification effect of the aluminum material sinking on the wall needs to be improved. SUMMARY

[0004] The utility model aims at providing a centrifugal classification device of high temperature atomized aluminum powder with reasonable structure and reliable use, which solves the above problems and further improves the sorting precision and enhances the sorting effect.

[0005] The technical scheme of the utility model is as follows:

[0006] A centrifugal classification device of high temperature atomized aluminum powder, comprising a vertical sorting box body, a sorting motor arranged on the top of the vertical sorting box body, and a sorting impeller connected with the output end of the sorting motor, wherein the technical key points are as follows: a tapered material receiving disc with a narrow upper part and a wide lower part is arranged in the lower part of the vertical sorting box body, a feeding pipe is fixedly arranged at the center of the bottom of the vertical sorting box body, the upper end of the feeding pipe is fixedly connected with the upper end of the tapered material receiving disc, an air supplementing cavity is formed between the tapered material receiving disc and the bottom surface of the vertical sorting box body, an air inlet corresponding to the lower part of the air supplementing cavity is arranged on the side wall of the vertical sorting box body, a plurality of gas injection pipes are arranged on the upper surface of the tapered material receiving disc and communicated with the air supplementing cavity, the outlets of the gas injection pipes are directed to the side wall of the vertical sorting box body, a plurality of coarse material outlets are arranged on the side wall of the vertical sorting box body and correspond to the low end of the tapered material receiving disc, an annular material receiving cavity is arranged outside the vertical sorting box body and surrounds the coarse material outlets, a coarse material discharge pipe is arranged at the bottom of the annular material receiving cavity, and a fine material discharge pipe is arranged on the top of the vertical sorting box body.

[0007] The centrifugal classification device for high-temperature atomized aluminum powder, the sorting impeller is composed of an upper hollow support plate, a lower hollow support plate, a plurality of blades connected between the edge of the upper hollow support plate and the lower hollow support plate, and a wheel shaft connected between the center of the upper hollow support plate and the lower hollow support plate, and the upper end of the wheel shaft is fixedly connected with the output end of the sorting motor.

[0008] The centrifugal classification device for high-temperature atomized aluminum powder, the upper part of the vertical sorting box body is internally provided with a support ring, and the upper surface edge of the support ring is provided with a wear-resistant ring for supporting the upper hollow support plate.

[0009] The centrifugal classification device for high-temperature atomized aluminum powder, the top end of the vertical sorting box body is provided with a plurality of support columns, the upper ends of the support columns jointly support a horizontal plate, the sorting motor is fixed on the horizontal plate, a cover body is connected between the edge of the horizontal plate and the top end of the vertical sorting box body, and the fine material discharge pipe is fixed on the outer side wall of the cover body.

[0010] The centrifugal classification device for high-temperature atomized aluminum powder, the bottom surface of the annular material receiving cavity is a slope surface, and a vibration motor is fixed.

[0011] The centrifugal classification device for high-temperature atomized aluminum powder, the jet pipe group is arranged close to the inner ring of the conical material receiving disc, and each jet pipe is uniformly arranged around the center line of the conical material receiving disc.

[0012] The centrifugal classification device for high-temperature atomized aluminum powder has the advantages that:

[0013] The aluminum powder entering with air first passes through the sorting impeller for sorting, part of the aluminum powder is lifted through the blade gap and discharged through the fine material discharge pipe, and the other part is thrown to the inner side wall of the vertical sorting box body, in the descending process, the gas discharged by the jet pipe group is sorted again, the fine material is sorted again, is lifted through the blade gap and discharged through the fine material discharge pipe, and finally the coarse material is discharged through the coarse material discharge pipe. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a structural schematic view of the centrifugal classification device for high-temperature atomized aluminum powder;

[0015] Figure 2 is Figure 1 the left view of the centrifugal classification device for high-temperature atomized aluminum powder.

[0016] In the figure: 1. sorting motor, 2. horizontal plate, 3. fine material discharge pipe, 4. cover, 5. wheel shaft, 6. support ring, 7. blade, 8. lower hollow support plate, 9. vertical sorting box, 10. annular material receiving cavity, 11. air inlet, 12. feed pipe, 13. conical material receiving disc, 14. air jet pipe group, 15. upper hollow support plate, 16. support column, 17. coarse material discharge pipe, 18. vibration motor. DETAILED DESCRIPTION

[0017] The utility model will be described in detail according to the attached drawings of the specification.

[0018] As shown in Figure 1 , Figure 2 , the high-temperature atomized aluminum powder centrifugal classification device includes a vertical sorting box 9, a sorting motor 1 arranged at the top of the vertical sorting box 9, and a sorting impeller connected with the output end of the sorting motor 1.

[0019] Among them, the lower part of the vertical sorting box 9 is internally provided with a conical material receiving disc 13 with a narrow upper part and a wide lower part, the bottom center of the vertical sorting box 9 is fixedly provided with a feed pipe 12, and the upper end of the feed pipe 12 is fixedly connected with the upper end of the conical material receiving disc 13.

[0020] The conical material receiving disc 13 and the bottom surface of the vertical sorting box 9 form a gas supplementing cavity, the sidewall of the vertical sorting box 9 is provided with an air inlet 11 corresponding to the lower part of the gas supplementing cavity, the upper surface of the conical material receiving disc 13 is provided with an air jet pipe group 14 in communication with the gas supplementing cavity, and the outlets of the air jet pipes of the air jet pipe group 14 are directed toward the sidewall of the vertical sorting box 9. The sidewall of the vertical sorting box 9 is provided with a plurality of coarse material outlets corresponding to the low-position end of the conical material receiving disc 13, the outer side of the vertical sorting box 9 is provided with an annular material receiving cavity 10 surrounding the coarse material outlets, and the bottom of the annular material receiving cavity 10 is provided with a coarse material discharge pipe 17. In the embodiment, the bottom surface of the annular material receiving cavity 10 is a slope, and is fixedly provided with a vibration motor 18. The air jet pipe group 14 is arranged close to the inner ring of the conical material receiving disc 13, and the air jet pipes are uniformly arranged around the center line of the conical material receiving disc 13.

[0021] The top of the vertical sorting box 9 is provided with a fine material discharge pipe 3. In the embodiment, the top end of the vertical sorting box 9 is provided with a plurality of support columns 16, the upper ends of the support columns 16 jointly support a horizontal plate 2, the sorting motor 1 is fixed on the horizontal plate 2, a cover 4 is connected between the edge of the horizontal plate 2 and the top end of the vertical sorting box 9, and the fine material discharge pipe 3 is fixed on the outer sidewall of the cover 4.

[0022] In the embodiment, the sorting impeller is composed of the upper hollow support plate 15, the lower hollow support plate 8, a plurality of blades 7 connected between the edge of the upper hollow support plate and the lower hollow support plate, and the wheel shaft 5 connected between the center of the upper hollow support plate and the lower hollow support plate, and the upper end of the wheel shaft 5 is fixedly connected with the output end of the sorting motor 1. The vertical sorting box 9 is internally provided with the support ring 6, and the upper surface edge of the support ring 6 is provided with the wear-resistant ring for supporting the upper hollow support plate 15.

[0023] Working principle:

[0024] The aluminum powder shaped by atomization enters into the vertical sorting box 9 through the feeding pipe 12 under the action of the gas, and the aluminum powder entering with the gas rises first through the sorting impeller, a part of the fine powder rises to the cover body 4 through the gap between the blades 7 and is discharged through the fine powder discharge pipe 3, and the other part of the coarse and fine mixed powder is thrown to the inner side wall of the vertical sorting box 9, and the coarse and fine mixed powder is sorted again by the gas sprayed by the jet pipe group 14 in the downward process, the fine powder is sorted again, rises through the gap between the blades 7 of the sorting impeller and is discharged through the fine powder discharge pipe 3, and the coarse powder is discharged through the coarse powder discharge pipe under the action of the vibration motor 18.

[0025] The above embodiment of the utility model is described in detail, but the content can only be the preferred embodiment of the utility model and cannot be considered to limit the implementation range of the utility model. Any equivalent change and improvement within the scope of the utility model is still within the scope of the patent.

Claims

1. A centrifugal classification device for high-temperature atomized aluminum powder, comprising a vertical sorting box, a sorting motor arranged at the top of the vertical sorting box, and a sorting impeller connected with the output end of the sorting motor, characterized in that: The lower part of the vertical sorting box is internally provided with a tapered receiving disc with narrow upper part and wide lower part, the bottom center of the vertical sorting box is fixedly provided with a feeding pipe, the upper end of the feeding pipe is fixedly connected with the upper end of the tapered receiving disc, a gas supplement cavity is formed between the tapered receiving disc and the bottom surface of the vertical sorting box, the sidewall of the vertical sorting box is provided with an air inlet corresponding to the lower part of the gas supplement cavity, the upper surface of the tapered receiving disc is provided with a jet pipe group in communication with the gas supplement cavity, the outlet of each jet pipe of the jet pipe group faces the sidewall of the vertical sorting box, the sidewall of the vertical sorting box is provided with a plurality of coarse material outlets corresponding to the low end of the tapered receiving disc, the outer side of the vertical sorting box is provided with an annular receiving cavity surrounding each coarse material outlet, the bottom of the annular receiving cavity is provided with a coarse material discharge pipe, and the top of the vertical sorting box is provided with a fine material discharge pipe.

2. The apparatus for centrifugal classification of high-temperature atomized aluminum powder according to claim 1, characterized in that: The sorting impeller is composed of an upper hollow support plate, a lower hollow support plate, a plurality of blades connected between the edge of the upper hollow support plate and the lower hollow support plate, and a shaft connected between the center of the upper hollow support plate and the lower hollow support plate, and the upper end of the shaft is fixedly connected with the output end of the sorting motor.

3. The apparatus for centrifugal classification of high-temperature atomized aluminum powder according to claim 1, characterized in that: The upper part of the vertical sorting box is internally provided with a support ring, and the upper surface edge of the support ring is provided with a wear-resistant ring for supporting the upper hollow support plate.

4. The apparatus for centrifugal classification of high-temperature atomized aluminum powder according to claim 1, characterized in that: The top end of the vertical sorting box is provided with a plurality of support columns, the upper end of each support column commonly supports a horizontal plate, the sorting motor is fixed on the horizontal plate, a cover is connected between the edge of the horizontal plate and the top end of the vertical sorting box, and the fine material discharge pipe is fixed on the outer sidewall of the cover.

5. The apparatus for centrifugal classification of high-temperature atomized aluminum powder according to claim 1, characterized in that: The bottom surface of the annular receiving cavity is a slope and is fixedly provided with a vibration motor.

6. The apparatus for centrifugal classification of high-temperature atomized aluminum powder according to claim 1, characterized in that: The jet pipe group is arranged close to the inner ring of the tapered receiving disc, and each jet pipe is uniformly arranged around the center line of the tapered receiving disc.

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