Bag pulling centrifugal machine for energetic materials

Abstract

According to the bag-pulling centrifugal machine for the energetic materials, the drum is rotationally installed in the barrel body, the through hole is formed in the drum, the feeding pipe is installed at the top of the barrel body, and particularly, the discharging opening of the feeding pipe faces the inner wall of the drum, so that the energetic materials are not prone to falling off in the input process of the energetic materials due to the structural design. Materials are directly sprayed out from the pipe opening of the feeding pipe to impact the inner side of the pull bag, after spin-drying, cleaning and re-spin-drying, the materials penetrate through the opening from the gap between the supports to be discharged out of the rotary drum, due to the fact that the diameter of the feeding pipe is not changed, energetic materials in the feeding pipe cannot be extruded in the feeding process, the explosion risk is reduced, and the production efficiency is improved. The problem that in the prior art, the explosion risk is too high when a bag-pulling centrifugal machine treats energetic materials is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to centrifuge technical field especially relates to a kind of for energetic material's pull bag centrifuge. BACKGROUND

[0002] In prior art, energetic material uses centrifuge to realize solid-liquid separation, but the existing centrifuge only solves the washing and filtering problems of energetic material, and the separated solids are still unloaded by a relatively primitive way, i.e., the filter bag is manually hung on the hook of an electric crane, the filter bag is lifted by the electric crane and moved above a transfer tank car, the filter bag is manually released from the hook, and the material in the filter bag is poured into the transfer tank car under the cooperation of the crane, the filter bag after pouring is manually cleaned and laid in the centrifuge, and the unloading process involves many manual operations, gas overflows during discharging, and the working environment is poor.

[0003] In the petroleum chemical industry and pharmaceutical industry, the centrifugal filtration technology for semi-finished products and finished products has been maturely used, and various series of centrifugal equipment have been formed, and the current technology has completely realized the automatic unloading of solid materials and the online cleaning function of equipment.

[0004] To solve the above problems, reduce manual operation in dangerous workshop, realize automatic connection of process, and introduce pull bag centrifuge in washing and filtering of energetic material, but due to the characteristics of energetic material, explosion may occur after accumulation and extrusion, the pull bag centrifuge in prior art needs to be distributed by a device such as a swash plate distributor during feeding, but the swash plate distributor is provided with fixing bolts, and the dust of energetic material after centrifugal dewatering may enter the gap between threads of the bolt, if the bolt is unscrewed, the energetic material between threads may be extruded, and explosion risk may occur, in addition, the dust of dried energetic material may be scattered in various places in the pull bag centrifuge, and may accumulate over time, and the accumulated energetic material may also have explosion risk. SUMMARY

[0005] The utility model aims at providing a pull bag centrifuge for energetic material, which solves the problem of high explosion risk of the pull bag centrifuge in prior art.

[0006] The utility model provides a kind of for energetic material's pull bag centrifuge, including cylinder, rotating drum is rotatably installed in the cylinder, through-hole is set up on the rotating drum, the top of cylinder is equipped with feed pipe, the discharge port of feed pipe is towards the inner wall of rotating drum, the top of cylinder is equipped with scraper, the scraper is in abutment with rotating drum inner wall, rotating drum bottom circle center is formed with rotating part, the top of rotating part is sleeved with sleeve frame, pull bag is installed in sleeve frame lower side by support, the upper end of pull bag is connected with the top of rotating drum, the lower side of rotating drum is formed with opening, sliding shaft is arranged in the rotating part, the sliding shaft slides along its axis, the sliding shaft is connected with cylinder by lever, the top of sliding shaft is equipped with the sleeve frame, the bottom of rotating part is connected with motor by transmission belt, the diameter of feed pipe is constant.

[0007] The first cleaning pipe is installed on the side wall of the cylinder, the first cleaning pipe communicates the inside and outside of the cylinder, and a water source is outside the first cleaning pipe.

[0008] The bottom of the rotating drum is conical, and a second cleaning pipe is installed in the conical region of the bottom of the rotating drum, and the second cleaning pipe is communicated with the water source.

[0009] A third cleaning pipe is installed on the edge of the top of the cylinder, an upturned edge is formed on the upper side of the rotating drum, the third cleaning pipe is communicated with the water source, and the third cleaning pipe sprays water to the upper side of the rotating drum.

[0010] A fourth cleaning pipe is installed on the top of the cylinder, and a water outlet of the fourth cleaning pipe is installed on the upper side of the rotating part.

[0011] The scraper is made of PEEK.

[0012] A telescopic assembly is fixed on the top of the cylinder, a telescopic rod is installed in the telescopic assembly, a telescopic hole is formed in the top of the cylinder, a Teflon protective sleeve is sleeved on the inner wall of the telescopic hole, the telescopic rod is slidingly inserted into the Teflon protective sleeve, the scraper is installed on the bottom of the telescopic rod, a baffle is installed at the end of the scraper, and the baffle forms an included angle with the scraper.

[0013] A top cover is fixed on the top of the sleeve frame by bolts, a sealing cover is sleeved on the upper side of the top cover, a groove is formed in the bottom surface of the sealing cover, a first sealing ring is installed in the groove, the first sealing ring is in abutment with the top cover, and a second sealing ring is installed between the top cover and the sleeve frame.

[0014] An air pipe is formed in the rotating part, the air pipe is communicated with an air source, the air pipe sprays gas into the gap between the sliding shaft and the rotating part, and the gap is in a positive pressure state.

[0015] Advantages

[0016] The utility model provides a kind of for energetic material's pull bag centrifuge, the discharge port of pull bag centrifuge feed pipe is towards the inner wall of rotary drum of pull bag centrifuge, so that energetic material input process, material is directly sprayed from the pipe orifice of feed pipe and impact in pull bag inside, after spin-drying, cleaning, spin-drying again, material is discharged rotary drum from the gap between support and passes through opening, since the diameter of feed pipe is invariable, energetic material in feed pipe is not extruded in the process of feeding, reduce the risk of explosion, improve the safety of pull bag centrifuge processing energetic material. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the utility model for energetic material's pull bag centrifuge sectional view;

[0018] Figure 2 It is the utility model top cover sectional enlarged view.

[0019] In the drawing: 1. barrel;2. rotary drum;3. feed pipe;4. scraper;5. rotating part;6. cover frame;7. pull bag;8. sliding shaft;9. air cylinder;10. lever;11. motor;12. transmission belt;13. first cleaning pipe;14. second cleaning pipe;15. third cleaning pipe;16. fourth cleaning pipe;17. telescopic rod;18. tetrafluoro protective sleeve;19. top cover;20. sealing cover;21. first sealing ring;22. second sealing ring;23. air pipe;24. gap. DETAILED DESCRIPTION

[0020] The utility model is further explained in detail in connection with drawing and embodiment.

[0021] Under prior art, pull bag centrifuge generally enters inside rotary drum by the way of input of swash plate, and the outlet of swash plate is relatively narrow in volume, when energetic material is sprayed, passing energetic material is extruded at the outlet of swash plate, increase the risk of explosion of energetic material, and if energetic material is accumulated in rotary drum for a long time, the risk of explosion also appears.

[0022] In order to solve the above problems, the utility model provides a kind of for energetic material's pull bag centrifuge, it includes cylinder 1, rotatingly installed with drum 2 in cylinder 1, and the through-hole is set up in drum 2, and cylinder 1 top is equipped with feed pipe 3, and the discharge port of feed pipe 3 is towards the inner wall of drum 2, and cylinder 1 top is equipped with scraper 4, and scraper 4 is in abutment with the inner wall of drum 2, and the bottom of drum 2 is formed with rotating part 5 in the center of circle, and rotating part 5 top is sleeved with sleeve frame 6, and sleeve frame 6 lower side is equipped with pull bag 7 by support, and pull bag 7 upper end is connected with the top of drum 2, and the lower side of drum 2 is formed with opening, and sliding shaft 8 is arranged in rotating part 5, and sliding shaft 8 slides along its axis, and sliding shaft 8 is connected with cylinder 9 by lever 10, and sliding shaft 8 top is equipped with sleeve frame 6, and the bottom of rotating part 5 is connected with motor 11 by transmission belt 12, and the diameter of feed pipe 3 is constant.

[0023] by motor 11 driving drum 2 and rotating part 5 self-rotation, the energetic material sprayed from feed pipe 3 will be directly sprayed on the inner wall of drum 2, because the diameter of feed pipe 3 is constant, when the energetic material flows in feed pipe 3, the energetic material will not be extruded, reduce the risk of explosion, then drum 2 is dehydrated, washed, spun dry in turn by the general steps of pull bag 7 centrifuge, then the energetic material on the inner wall of drum 2 is scraped off by scraper 4, then lever 10 is rotated by cylinder 9, sliding shaft 8 reciprocating moves, sleeve frame 6 reciprocating moves, pull bag 7 removes residual cake layer, pull bag 7 step is completed, and the energetic material finally falls off, the above working procedure is consistent with the pull bag 7 centrifuge processing procedure of prior art, which will not be described here.

[0024] first cleaning pipe 13 is installed on the sidewall of cylinder 1, and first cleaning pipe 13 communicates the inside and outside of cylinder 1, and first cleaning pipe 13 is connected with water source, and after the work of pull bag 7 centrifuge is finished, the water source outside first cleaning pipe 13 can clean the opening on drum 2, so that the opening on drum 2 will not be residual energetic material, and the risk of explosion is reduced.

[0025] The bottom of drum 2 is conical, and second cleaning pipe 14 is installed in the conical region of the bottom of drum 2, and second cleaning pipe 14 is connected with water source. The bottom of drum 2 is easy to accumulate energetic material, and second cleaning pipe 14 can clean the energetic material between pull bag 7 and drum 2, avoid the accumulation of energetic material, and reduce the probability of explosion.

[0026] A third cleaning pipe 15 is mounted on the top edge of the cylinder body 1, and a flange is formed on the upper side of the rotating drum 2. The third cleaning pipe 15 is connected with a water source, and water is sprayed to the upper side of the rotating drum 2 by the third cleaning pipe 15. Since the energetic material is in powder form after spinning, the dust can float to the gap 24 between the upper side of the rotating drum 2 and the cylinder body 1. The space on the upper side of the rotating drum 2 is cleaned by the third cleaning pipe 15, so as to avoid the accumulation of the energetic material and reduce the probability of explosion.

[0027] A fourth cleaning pipe 16 is mounted on the top of the cylinder body 1, and the water outlet of the fourth cleaning pipe 16 is mounted on the upper side of the rotating part 5. The fourth cleaning pipe 16 can directly clean the sleeve frame 6, so as to avoid the accumulation of the energetic material on the sleeve frame 6 and reduce the probability of explosion.

[0028] The scraper 4 is made of PEEK. In the process of scraping the energetic material, the probability of explosion is reduced. The tail of the scraper 4 is designed with a baffle, which can quickly guide the scraped material into the opening below. The scraper 4 is mounted on the bottom of the telescopic rod, and the end of the scraper 4 is mounted with a baffle. The baffle and the scraper 4 form an angle, so as to avoid the splashing of the material in the rotating drum 2 and reduce the probability of explosion.

[0029] The telescopic assembly is fixed on the top of the cylinder body 1, and a telescopic rod 17 is mounted in the telescopic assembly. A telescopic hole is formed on the top of the cylinder body 1, and a Teflon protective sleeve 18 is sleeved on the inner wall of the telescopic hole. The telescopic rod 17 is slidingly inserted into the Teflon protective sleeve 18. The Teflon protective sleeve 18 can avoid dust adsorption, reduce the probability of adsorption of the energetic material in the telescopic hole, and improve the safety.

[0030] The top cover 19 is fixed on the top of the sleeve frame 6 by bolts. The top cover 19 is sleeved with a sealing cover 20 on the upper side. The bottom surface of the sealing cover 20 is provided with a groove, and the first sealing ring 21 is mounted in the groove. The first sealing ring 21 abuts against the top cover 19. The second sealing ring 22 is mounted between the top cover 19 and the sleeve frame 6. When the top cover 19 is removed, the structure inside the sleeve frame 6 can be repaired, which is convenient for disassembly. By setting the second sealing ring 22, dust can be prevented from entering the inside of the top cover 19 and the sleeve frame 6, and the energetic material can be prevented from entering the thread gap 24 inside the bolt. The rotation of the bolt can avoid extruding the energetic material.

[0031] The air pipe 23 is formed in the rotating part 5, and the air pipe 23 is connected with an air source. The air pipe 23 sprays gas into the gap 24 between the sliding shaft 8 and the rotating part 5. The gap 24 is in a positive pressure state, which can prevent dry energetic material from floating into the gap 24 and prevent the accumulation of the energetic material in the gap 24, thereby improving the safety during processing.

Claims

1. A draw-bag centrifuge for energetic materials, characterized in that The utility model provides a kind of cylinder (1), rotatingly installed with drum (2) in the cylinder (1), the drum (2) is equipped with through hole, the cylinder (1) top is equipped with feed pipe (3), the discharge port of feed pipe (3) is towards the inner wall of drum (2), the cylinder (1) top is equipped with scraper (4), and the scraper (4) is in contact with drum (2) inner wall, the bottom of drum (2) is raised and forms rotating part (5), the rotating part (5) top is sleeved with sleeve frame (6), the lower side of sleeve frame (6) is equipped with pull bag (7) by support, the upper end of pull bag (7) is connected with the top of drum (2), the lower side of drum (2) forms opening, sliding shaft (8) is arranged in the rotating part (5), the sliding shaft (8) slides along its axis, the sliding shaft (8) is connected with pneumatic cylinder (9) by lever (10), the sliding shaft (8) top is equipped with the sleeve frame (6), the bottom of rotating part (5) is drivenly connected with motor (11) by transmission belt (12), the diameter of feed pipe (3) is constant.

2. The draw-bag centrifuge for energetic materials of claim 1, wherein, The first cleaning pipe (13) is installed on the side wall of the cylinder (1), and the first cleaning pipe (13) communicates the inside and outside of the cylinder (1).

3. A draw-bag centrifuge for energetic materials according to claim 1 or 2, characterized in that The bottom of the drum (2) is conical, and the second cleaning pipe (14) is installed in the conical region of the bottom of the drum (2), and the second cleaning pipe (14) is communicated with the water source.

4. A draw-bag centrifuge for energetic materials according to claim 1 or 2, characterized in that The third cleaning pipe (15) is installed on the top edge of the cylinder (1), the upper side of the drum (2) is formed with a flange, the third cleaning pipe (15) is communicated with the water source, and the third cleaning pipe (15) sprays water to the upper side of the drum (2); the fourth cleaning pipe (16) is installed on the top of the cylinder (1), and the water outlet of the fourth cleaning pipe (16) is installed on the upper side of the rotating part (5).

5. The draw-bag centrifuge for energetic materials according to claim 3, characterized in that, The third cleaning pipe (15) is installed on the top edge of the cylinder (1), the upper side of the drum (2) is formed with a flange, the third cleaning pipe (15) is communicated with the water source, and the third cleaning pipe (15) sprays water to the upper side of the drum (2); the fourth cleaning pipe (16) is installed on the top of the cylinder (1), and the water outlet of the fourth cleaning pipe (16) is installed on the upper side of the rotating part (5).

6. A draw-bag centrifuge for energetic materials according to claim 1 or 2, characterized in that The scraper (4) is made of PEEK.

7. A draw-bag centrifuge for energetic materials according to claim 1 or 2, characterized in that A telescopic assembly is fixed on the top of the cylinder (1), a telescopic rod (17) is installed in the telescopic assembly, a telescopic hole is formed in the top of the cylinder (1), a Teflon protective sleeve (18) is sleeved on the inner wall of the telescopic hole, the telescopic rod (17) is slidingly inserted into the Teflon protective sleeve (18), the scraper (4) is installed on the bottom of the telescopic rod (17), a baffle is installed at the end of the scraper (4), and the baffle forms an angle with the scraper (4).

8. The draw-bag centrifuge for energetic materials of claim 3, wherein, A telescopic assembly is fixed at the top of the barrel (1), a telescopic rod (17) is installed in the telescopic assembly, a telescopic hole is formed at the top of the barrel (1), a Teflon protective sleeve (18) is sleeved on the inner wall of the telescopic hole, the telescopic rod (17) is slidingly inserted into the Teflon protective sleeve (18), the scraper (4) is installed at the bottom of the telescopic rod (17), a baffle is installed at the end of the scraper (4), and the baffle and the scraper (4) form an included angle.

9. A draw-bag centrifuge for energetic materials according to claim 1 or 2, characterized in that A top cover (19) is fixed at the top of the sleeve frame (6) through bolts, a sealing cover (20) is sleeved on the upper side of the top cover (19), a groove is formed in the bottom surface of the sealing cover (20), a first sealing ring (21) is installed in the groove, the first sealing ring (21) abuts against the top cover (19), and a second sealing ring (22) is installed between the top cover (19) and the sleeve frame (6).

10. The draw-bag centrifuge for energetic materials according to claim 1 or 2, characterized in that An air pipe (23) is formed in the rotating part (5), the air pipe (23) is communicated with an air source, the air pipe (23) sprays gas into a gap (24) between the sliding shaft (8) and the rotating part (5), and the gap (24) is in a positive pressure state.

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