An equipment for processing coarse aggregate reactive powder concrete materials

Abstract

The present disclosure belongs to the technical field of coarse aggregate processing equipment, and discloses a processing equipment for reactive powder concrete materials of coarse aggregates, which includes a screening frame. The screening frame is in the shape of a rectangular shell frame with an open upper end. A plurality of uniformly distributed sieve holes are formed at the bottom of the screening frame. A receiving frame is fixedly connected to the bottom of the screening frame. The receiving frame is in the shape of a rectangular shell frame with an open upper end. An opening on the side wall of any end of the receiving frame is set as a fine material outlet, and a first guide groove is fixed at the fine material outlet. A support plate is arranged directly below the receiving frame, and a plurality of uniformly distributed screening columns are fixedly connected to the upper end surface of the support plate; through the cooperation of the screening frame, sieve holes, receiving frame, screening columns, support plate, and first telescopic cylinder, during the screening process of coarse aggregates and fine aggregates, coarse aggregate particles with a cross-sectional area smaller than the diameter of the sieve holes but a length greater than the diameter of the sieve holes cannot fall through the sieve holes, improving the accuracy of coarse aggregate screening.

Description

Technical Field

[0001] The present disclosure belongs to the technical field of coarse aggregate processing equipment, and particularly relates to a processing equipment for coarse aggregate reactive powder concrete materials. Background Art

[0002] Coarse aggregate refers to aggregate with a particle size greater than 5 mm. The common coarse aggregates used in ordinary concrete are crushed stones and pebbles. Coarse aggregates obtained by crushing and screening natural rocks or pebbles are called crushed stones or crushed pebbles. After being screened by a screening device, coarse aggregates of different sizes can be screened and classified. However, for slender coarse aggregates, their volume is jointly determined by the cross-sectional diameter and length. When the length is long and the cross-sectional diameter is smaller than the mesh aperture of the sieve, although they are large-particle substances, they can still leak through the sieve holes. Therefore, there is a problem of inaccurate screening of coarse aggregates in the prior art. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the purpose of the present disclosure is to provide a processing equipment for coarse aggregate reactive powder concrete materials, which solves the problem of inaccurate screening of coarse aggregates in the prior art.

[0004] The purpose of the present disclosure can be achieved by the following technical solutions:

[0005] A processing equipment for coarse aggregate reactive powder concrete materials includes a screening frame. The screening frame is in the shape of a rectangular shell frame with an open upper end. A plurality of uniformly distributed sieve holes are provided at the bottom of the screening frame. A receiving frame is fixedly connected to the bottom of the screening frame. The receiving frame is in the shape of a rectangular shell frame with an open upper end. An opening on any side wall of the receiving frame is set as a fine material outlet, and a first guide trough is fixed at the fine material outlet. A support plate is provided directly below the receiving frame. A plurality of uniformly distributed screening columns are fixedly arranged on the upper end surface of the support plate. The number of screening columns is equal to the number of sieve holes. The screening columns correspond to the sieve holes one by one, and the diameter of the screening columns is equal to the diameter of the sieve holes. The upper ends of the screening columns are all in the shape of a convex hemispherical surface, and the screening columns can all pass through the bottom surface of the receiving frame and are slidably clamped with it.

[0006] The distance between the inner bottom surface of the receiving frame and the outer bottom surface of the screening frame is greater than the diameter of the sieve holes. A first support plate is provided. The first support plate is located at the end of the screening frame close to the fine material outlet. The upper end of the first support plate is fixedly connected to the lower end surface of the first guide trough. A fixing strip is fixedly connected to the side wall of the first support plate. The fixing strip is located directly below the support plate. A first telescopic cylinder is fixedly installed on the fixing strip. The telescopic rod of the first telescopic cylinder is placed vertically upward. The telescopic rod of the first telescopic cylinder is fixedly connected to the lower end surface of the support plate. And when the telescopic rod of the first telescopic cylinder is in the fully contracted state, the distance between the top of the spherical surface at the upper end of the screening column and the outer bottom surface of the screening frame is equal to the diameter of the sieve holes.

[0007] A first scraper parallel to the fine material outlet is provided inside the receiving frame. The lower end of the first scraper is in contact with the inner bottom surface of the receiving frame, the upper end of the first scraper is in contact with the outer bottom surface of the screening frame, both ends of the first scraper are slidably connected to the inner wall of the receiving frame. A plurality of uniformly distributed through holes are axially formed in the first scraper, and the through holes correspond to the screening columns. The upper ends of the screening columns can pass through the through holes. A first slide bar is arranged coaxially on the side of the first scraper away from the fine material outlet. Both ends of the first slide bar are fixed to the first scraper through first mounting plates. A pair of symmetrically placed wedge plates are provided at one end of the through hole away from the fine material outlet. The first slide bar passes through the wedge plates and is slidably connected to the wedge plates. The two sides of the wedge plates parallel to the fine material outlet are both inclined wedge-shaped surfaces, and the inclination directions of the wedge surfaces are both inclined from the end of the wedge plate away from the central axis of the through hole towards the central axis of the first slide bar. Second mounting plates are provided on the sides of the wedge plates away from the central axis of the through hole. The second mounting plates are sleeved on the first slide bar and fixed to the first scraper. Springs are fixed between the second mounting plates and the corresponding wedge plates, and the springs are sleeved on the first slide bar. A pair of symmetrically placed second telescopic cylinders are provided at the end of the receiving frame away from the fine material outlet. The telescopic rods of the second telescopic cylinders are arranged towards the fine material outlet, and the telescopic rods of the second telescopic cylinders are fixed to the first scraper.

[0008] The two side walls of the screening frame perpendicular to the fine material outlet are provided with detachable valve plates, and the valve plates can all move upward in the vertical direction. A second support plate is provided at one end of the screening frame away from the first support plate. One end of the second support plate is fixed to the side wall of the screening frame. A first rotating shaft rotatably connected is provided on the second support plate. The first rotating shaft is coaxially arranged with the second telescopic cylinder. A first gear coaxially arranged is fixedly sleeved on the first rotating shaft. The first gear is engaged with a first straight rack. The upper end of the first straight rack is fixed to the lower end surface of the support plate. A second gear coaxially arranged is fixedly sleeved on the first rotating shaft. A second straight rack vertically upward is engaged with the second gear. The second straight rack is slidably clamped with the second support plate and can slide up and down along the side wall of the second support plate. A connecting piece is fixed to the upper end of the second straight rack. The valve plates are all fixed to the connecting piece. The diameter of the second gear is larger than that of the first gear. A second scraper is provided inside the screening frame. The lower end surface of the second scraper is in contact with the inner bottom surface of the screening frame. The second scraper is parallel to the valve plates and can move inside the screening frame.

[0009] There is a conveyor belt transport mechanism directly below the pallet. The conveyor belt transport mechanism includes a pair of symmetrically placed first support frames. Between the first support frames, there is a pair of symmetrically placed first rollers. The first rollers are coaxially placed with the second telescopic cylinder. A first annular conveyor belt is sleeved between the two first rollers. A first rotating motor is fixedly installed on any one of the first support frames. The output end of the first rotating motor is provided with a second rotating shaft. The second rotating shaft is rotationally connected to the first support frame. The second rotating shaft is coaxially placed with and fixedly connected to any one of the first rollers. There is a pair of symmetrically placed second material guiding grooves. The two second material guiding grooves are located on both sides of the screening frame, and both second material guiding grooves are fixedly connected to the lower end surface of the screening frame near the valve plate end. The lower end of the first support plate is fixed to the first support frame on the side of the conveyor belt transport mechanism close to the fine material outlet. The lower end of the second support plate is fixed to the other first support frame of the conveyor belt transport mechanism.

[0010] The second scraper is provided as two parallel and symmetrically placed ones. Both second scrapers are located inside the screening frame. Inside the screening frame, there is a pair of symmetrically placed second sliding rods. The second sliding rods are all coaxially placed with the first sliding rod. The second sliding rods are respectively located on both sides inside the screening frame. Third mounting plates are fixed at both ends of the second sliding rods. The third mounting plates are both fixedly connected to the frame wall inside the screening frame perpendicular to the valve plate. The second sliding rods all pass through the second scraper. The second scraper can move axially along the second sliding rod. The second scraper corresponds to the valve plate one by one. At both ends near the upper end surface of the second scraper, there are articulated connecting rods. The other ends of the connecting rods are respectively articulated to the upper end of the corresponding side valve plate. When the lower end surface of the valve plate fits the inner bottom surface of the screening frame, the two second scrapers fit each other and are located at the middle position of the screening frame.

[0011] There is a feeding mechanism. The feeding mechanism includes a pair of inclined upwardly placed side plates. The two side plates are in a parallel placement state. The upper ends of the side plates are all directly above the screening frame. Between the two side plates, there is a pair of second rollers. The second rollers are respectively located at the upper and lower ends of the side plates. The second rollers are all coaxially placed with the first sliding rod. Both ends of the second rollers are rotationally connected to the side plates. A second annular conveyor belt is sleeved between the second rollers. A plurality of evenly distributed partition plates are fixed on the outer side wall of the second annular conveyor belt. A storage bin is fixed at the position near the lower end of the side plate. One side of the storage bin close to the second annular conveyor belt is open. A second support frame placed vertically downward is fixed at the end of the storage bin away from the side plate. A third support frame placed vertically downward is fixed at the position of the side plate close to the second support plate. A second rotating motor is fixed on any one of the side plates. The output end of the second rotating motor is provided with a third rotating shaft. The third rotating shaft is coaxially placed with any one of the second rollers. The third rotating shaft passes through the side plate and is rotationally connected to the side plate. One end of the third rotating shaft is fixed to the second roller.

[0012] The bottoms of the second telescopic cylinders are all fixed to the third support frame.

[0013] A guide plate is provided directly below the second annular conveyor belt, and the guide plate is fixed to the side plate through a fixing strip.

[0014] Advantages of the present disclosure:

[0015] 1. Through the cooperation of the screening frame, sieve holes, receiving frame, screening column, support plate, and first telescopic cylinder in the present invention, during the screening process of coarse and fine aggregates, coarse aggregate particles with a cross-sectional area smaller than the sieve hole diameter but a length greater than the sieve hole diameter cannot fall through the sieve holes, improving the accuracy of coarse aggregate screening;

[0016] 2. Through the cooperation of the first scraper, through-hole groove, first sliding rod, wedge plate, spring, and second mounting plate in the present invention, it is convenient for the next screening of the fine aggregates accumulated in the receiving frame, improving the continuity of screening;

[0017] 3. Through the cooperation of the first rotating shaft, first gear, first straight rack, second gear, second straight rack, connecting piece, valve plate, second sliding rod, second scraper, connecting rod, support plate, and first telescopic cylinder in the present invention, when pushing the coarse aggregate with a cross-sectional area smaller than the sieve hole diameter but a length greater than the sieve hole diameter to move up and back into the screening frame, at the same time, the opening of the valve plate and the movement of the second scraper are coordinated to facilitate the discharge and collection of the coarse aggregate in the screening frame. Description of the drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 is the overall structural schematic diagram of the present invention;

[0020] Figure 2 is the overall structural schematic diagram of the present invention from different perspectives;

[0021] Figure 3 is the partial structural schematic diagram of the feeding mechanism of the present invention;

[0022] Figure 4 is the structural schematic diagram of the conveyor belt transportation mechanism and the screening frame of the present invention;

[0023] Figure 5 is the structural schematic diagram of the second support plate of the present invention;

[0024] Figure 6 is the structural schematic diagram of the first gear of the present invention;

[0025] Figure 7 is the internal structural schematic diagram of the receiving frame of the present invention. Detailed implementation mode

[0026] Next, the technical solutions in the embodiments of the present disclosure will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present disclosure.

[0027] As Figures 1 to 7 shown, a processing device for coarse aggregate reactive powder concrete materials includes a screening frame 1. The screening frame 1 is in the shape of a rectangular shell frame with an open upper end. A plurality of uniformly distributed sieve holes 2 are formed at the bottom of the screening frame 1. A receiving frame 3 is fixedly connected to the bottom of the screening frame 1. The receiving frame 3 is in the shape of a rectangular shell frame with an open upper end. An opening on any side wall of the receiving frame 3 is set as a fine material outlet, and a first guide groove 4 is fixed at the fine material outlet. A support plate 5 is arranged directly below the receiving frame 3. A plurality of uniformly distributed screening columns 6 are fixedly connected to the upper end surface of the support plate 5. The number of screening columns 6 is equal to the number of sieve holes 2. The screening columns 6 correspond to the sieve holes 2 one by one, and the diameter of the screening columns 6 is equal to the diameter of the sieve holes 2. The upper ends of the screening columns 6 are all in the shape of a convex hemispherical surface, and the screening columns 6 can all pass through the bottom surface of the receiving frame 3 and are slidably clamped with it;

[0028] The distance between the inner bottom surface of the receiving frame 3 and the outer bottom surface of the screening frame 1 is greater than the diameter of the sieve hole 2. A first support plate 7 is provided. The first support plate 7 is located at the end of the screening frame 1 close to the fine material outlet. The upper end of the first support plate 7 is fixedly connected to the lower end surface of the first guide groove 4. A fixing strip is fixedly connected to the side wall of the first support plate 7. The fixing strip is located directly below the support plate 5. A first telescopic cylinder 8 is fixedly installed on the fixing strip. The telescopic rod of the first telescopic cylinder 8 is placed vertically upward. The telescopic rod of the first telescopic cylinder 8 is fixedly connected to the lower end surface of the support plate 5. And when the telescopic rod of the first telescopic cylinder 8 is in the fully contracted state, the distance between the top of the spherical surface at the upper end of the screening column 6 and the outer bottom surface of the screening frame 1 is equal to the diameter of the sieve hole 2;

[0029] An appropriate amount of aggregate particles to be screened is added into the screening box 1 from above the screening box 1. Since the distance between the top spherical surface of the screening column 6 and the outer bottom surface of the screening box 1 is equal to the diameter of the sieve hole 2, and the upper end of the screening column 6 is hemispherical, the aggregate particles with a cross-sectional diameter and length smaller than the diameter of the sieve hole 2 fall through the sieve hole 2 and slide down along the semi-spherical surface to be collected on the inner bottom surface of the receiving box 3; the aggregate particles with a cross-sectional diameter larger than the diameter of the sieve hole 2 cannot pass through the sieve hole 2 and remain in the screening box 1; for the coarse aggregate particles with a cross-sectional area smaller than the diameter of the sieve hole 2 but a length larger than the diameter of the sieve hole 2, some of them will fall into the sieve hole 2 during the screening process due to the cross-sectional area being smaller than the diameter of the sieve hole 2. However, because its length is larger than the diameter of the sieve hole 2 and the distance between the top spherical surface of the screening column 6 and the outer bottom surface of the screening box 1 is equal to the diameter of the sieve hole 2, after it falls into the sieve hole 2, one end contacts the top spherical surface of the screening column 6, and the other end is still inside the screening box 1, that is, the aggregate particles with a cross-sectional diameter smaller than the diameter of the sieve hole 2 but a length larger than the length of the sieve hole 2 are stuck between the sieve hole 2 and the screening column 6 and cannot fall into the receiving box 3. Then, the first telescopic cylinder 8 is activated, and the telescopic rod of the first telescopic cylinder 8 extends upward to push the support plate 5. The support plate 5 drives the screening column 6 to move upward. The screening column 6 pushes the long aggregate particles stuck between the sieve hole 2 and the screening column 6 to move upward. When it moves upward to be completely above the sieve, due to the hemispherical shape of the upper end of the screening column 6, the long aggregate particles will pour into the screening box 1; through the above process, during the screening process of coarse and fine aggregates, the coarse aggregate particles with a cross-sectional area smaller than the diameter of the sieve hole 2 but a length larger than the diameter of the sieve hole 2 cannot fall from the sieve hole 2, which can improve the accuracy of coarse aggregate screening.

[0030] In order to discharge the fine aggregate accumulated in the receiving frame 3 to facilitate the next screening and improve the continuity of screening, a first scraper 9 is provided in the receiving frame 3 and is placed parallel to the fine material outlet. The lower end of the first scraper 9 is attached to the inner bottom surface of the receiving frame 3, the upper end of the first scraper 9 is attached to the outer bottom surface of the screening frame 1, both ends of the first scraper 9 are slidably connected to the inner wall of the receiving frame 3. A plurality of uniformly distributed through-hole grooves are formed in the first scraper 9 along the axial direction, and the through-hole grooves correspond to the screening columns 6. The upper ends of the screening columns 6 can all pass through the through-hole grooves. A first sliding rod 10 placed coaxially is provided on the side of the first scraper 9 away from the fine material outlet. Both ends of the first sliding rod 10 are fixed to the first scraper 9 through first mounting plates. A pair of symmetrically placed wedge plates 11 are provided at one end of the through-hole groove away from the fine material outlet. The first sliding rod 10 passes through the wedge plates 11 and is slidably connected to the wedge plates 11. Both sides of the wedge plates 11 parallel to the fine material outlet are arranged in an inclined wedge shape, and the inclined direction of the inclined surface is from the end of the wedge plate 11 away from the central axis of the through-hole groove to the side close to the central axis of the first sliding rod 10. Second mounting plates 12 are provided on the sides of the wedge plates 11 away from the central axis of the through-hole groove. The second mounting plates 12 are all sleeved on the first sliding rod 10 and fixed to the first scraper 9. Springs 13 are fixed between the second mounting plates 12 and the corresponding wedge plates 11. The springs 13 are all sleeved on the first sliding rod 10. A pair of symmetrically placed second telescopic cylinders 14 are provided at the end of the receiving frame 3 away from the fine material outlet. The telescopic rods of the second telescopic cylinders 14 are placed towards the fine material outlet. The telescopic rods of the second telescopic cylinders 14 are all fixed to the first scraper 9;

[0031] When the second telescopic cylinder 14 is opened, the telescopic rod of the second telescopic cylinder 14 extends to push the first scraper 9. The first scraper 9 drives the first mounting plate, the first sliding rod 10, the wedge plates 11, the springs 13 and the second mounting plates 12 to move. The first scraper 9 can push the fine aggregate in the receiving frame 3 towards the fine material outlet and discharge it through the first guide groove 4. During the moving process, the wedge plates 11 can come into extrusion contact with the screening columns 6. During the extrusion contact process, the wedge plates 11 compress the springs 13. Relative sliding occurs between the inclined surfaces of the wedge plates 11 and the screening columns 6. The wedge plates 11 can push the fine aggregate near the circumferential side wall of the screening columns 6 to move towards the fine material outlet and be discharged. When the telescopic rod of the second telescopic cylinder 14 contracts, it can drive the first scraper 9 to reset. Through the above process, it is convenient for the next screening of the fine aggregate accumulated in the receiving frame 3 and the continuity of screening is improved.

[0032] To facilitate the discharge of the coarse aggregate in the screening box 1, the two side walls of the screening box 1 perpendicular to the fine material outlet are provided with detachable valve plates 15. The valve plates 15 can all move upward in the vertical direction. One end of the screening box 1 away from the first support plate 7 is provided with a second support plate 16. One end of the second support plate 16 is fixed to the side wall of the screening box 1. A first rotating shaft is rotatably connected to the second support plate 16. The first rotating shaft and the second telescopic cylinder 14 are arranged coaxially. A first gear 17 placed coaxially is fixedly sleeved on the first rotating shaft. The first gear 17 is engaged with a first straight rack 18. The upper end of the first straight rack 18 is fixed to the lower end face of the support plate 5. A second gear 19 placed coaxially is fixedly sleeved on the first rotating shaft. A second straight rack 20 placed vertically upward is engaged with the second gear 19. The second straight rack 20 is slidably clamped with the second support plate 16. The second straight rack 20 can slide up and down along the side wall of the second support plate 16. A connecting member 21 is fixed to the upper end of the second straight rack 20. The valve plates 15 are all fixed to the connecting member 21. The diameter of the second gear 19 is larger than the diameter of the first gear 17. A second scraper 22 is arranged in the screening box 1. The lower end face of the second scraper 22 is attached to the inner bottom surface of the screening box 1. The second scraper 22 and the valve plates 15 are in a parallel placement state. The second scraper 22 can move in the screening box 1;

[0033] When it is necessary to discharge the coarse aggregate in the screening box 1, first start the first telescopic cylinder 8. The telescopic rod of the first telescopic cylinder 8 extends upward to push the support plate 5. The support plate 5 drives the screening column 6 to move upward and makes the coarse aggregate particles with a cross-sectional area smaller than the diameter of the sieve hole 2 but a length greater than the diameter of the sieve hole 2 stuck between the sieve hole 2 and the screening column 6 fall back into the screening box 1. At the same time, during the upward movement of the support plate 5, the support plate 5 drives the first straight rack 18. The first straight rack 18 drives the first gear 17. The first gear 17 drives the first rotating shaft. The first rotating shaft drives the second gear 19. The second gear 19 drives the second straight rack 20, the connecting member 21, and the valve plates 15 to move upward in sequence, and then pushes the second scraper 22 to move towards the valve plates 15 to discharge the coarse aggregate.

[0034] To facilitate the collection of the discharged coarse aggregate, a conveyor belt transport mechanism 23 is provided directly below the pallet 5. The conveyor belt transport mechanism 23 includes a pair of symmetrically placed first support frames 231. Between the first support frames 231, there is a pair of symmetrically placed first rollers. The first rollers are coaxially placed with the second telescopic cylinder 14. A first annular conveyor belt 232 is sleeved between the two first rollers. A first rotation motor 233 is fixedly installed on any one of the first support frames 231. The output end of the first rotation motor 233 is provided with a second rotating shaft, which is rotatably connected to the first support frame 231. The second rotating shaft is coaxially placed with and fixedly connected to any one of the first rollers. There are a pair of symmetrically placed second material guiding grooves 24. The two second material guiding grooves 24 are located on both sides of the screening frame 1, and both second material guiding grooves 24 are fixedly connected to the lower end surface of the screening frame 1 near the valve plate 15 end. The lower end of the first support plate 7 is fixed to the first support frame 231 on the side of the conveyor belt transport mechanism close to the fine material outlet, and the lower end of the second support plate 16 is fixed to the other first support frame 231 of the conveyor belt transport mechanism;

[0035] The movable second scraper 22 moves towards any one of the valve plates 15. The coarse aggregate is discharged through the second material guiding groove 24 and falls on the first annular conveyor belt 232, and the conveyor belt transport mechanism 23 transports the coarse aggregate for unified collection.

[0036] To facilitate the automatic control of the movement of the second scraper 22 and at the same time facilitate the second scraper 22 to push the coarse aggregate in the screening frame 1, the second scraper 22 is provided as two parallel and symmetrically placed ones. Both second scrapers 22 are located inside the screening frame 1. Inside the screening frame 1, there is a pair of symmetrically placed second sliding rods 25. The second sliding rods 25 are both coaxially placed with the first sliding rod 10. The second sliding rods 25 are respectively located on both sides inside the screening frame 1. Third mounting plates are fixed at both ends of the second sliding rods 25. The third mounting plates are both fixedly connected to the frame wall inside the screening frame 1 perpendicular to the valve plate 15. The second sliding rods 25 all pass through the second scraper 22, and the second scraper 22 can move axially along the second sliding rods 25. The second scraper 22 corresponds to the valve plate 15 one by one. At both ends near the upper end surface of the second scraper 22, connecting rods 26 are hinged. The other ends of the connecting rods 26 are hinged to the upper end of the corresponding valve plate 15. When the lower end surface of the valve plate 15 fits with the inner bottom surface of the screening frame 1, the two second scrapers 22 fit with each other and are located at the middle position inside the screening frame 1; during the upward movement of the valve plate 15, the valve plate 15 drives the connecting rod 26, and the connecting rod 26 pulls the corresponding second scraper 22, so that the two second scrapers 22 move along the second sliding rods 25 towards the corresponding valve plate 15 end, realizing the automatic control of the movement of the second scraper 22. At the same time, with the setting of the two second scrapers 22, the two second scrapers divide the coarse aggregate in the screening frame 1 into two parts and push them towards different valve plate 15 sides, which can avoid the problem that it is difficult to push when a single second scraper 22 pushes in the same direction due to a large amount of coarse aggregate.

[0037] In order to facilitate the feeding of the aggregate to be screened, a feeding mechanism 27 is provided. The feeding mechanism 27 includes a pair of side plates 271 placed obliquely upward. The two side plates 271 are placed in a parallel state. The upper ends of the side plates 271 are both directly above the screening frame 1. A pair of second rotating rollers 272 are arranged between the two side plates 271. The second rotating rollers 272 are respectively located at the upper and lower ends of the side plates 271. The second rotating rollers 272 are both placed coaxially with the first sliding rod 10. Both ends of the second rotating rollers 272 are rotatably connected to the side plates 271. A second endless conveyor belt 273 is sleeved between the second rotating rollers 272. A plurality of evenly distributed partition plates 274 are fixed on the outer side wall of the second endless conveyor belt 273. A storage bin 275 is fixed at a position close to the lower end of the side plate 271. One side of the storage bin 275 close to the second endless conveyor belt 273 is open. A second support frame placed vertically downward is fixed at the end of the storage bin 275 away from the side plate 271. A third support frame placed vertically downward is fixed at a position where the side plate 271 is close to the second support plate 16. A second rotating motor 276 is fixed on any one of the side plates 271. A third rotating shaft is provided at the output end of the second rotating motor 276. The third rotating shaft is placed coaxially with any one of the second rotating rollers 272. The third rotating shaft passes through the side plate 271 and is rotatably connected to the side plate 271. One end of the third rotating shaft is fixed to the second rotating roller 272;

[0038] The aggregate to be screened is added to the storage bin 275. The second rotating motor 276 is started. The output end of the second rotating motor 276 drives the third rotating shaft, and then drives the second rotating roller 272, the second endless conveyor belt 273, and the partition plates 274 in sequence, so that the second endless conveyor belt 273 drives the partition plates 274 to move obliquely upward along the direction of the side plate 271. At the same time, the aggregate in the storage bin 275 falls onto the second endless conveyor belt 273 and is driven to move upward under the action of the partition plates 274. When the partition plates 274 drive the aggregate to be screened to move to the position of the upper second rotating roller 272, the partition plates 274 drive the aggregate to pour into the screening frame 1, achieving the purpose of facilitating the feeding of the aggregate to be screened.

[0039] The bottom of the second telescopic cylinder 14 is fixed to the third support frame.

[0040] When the partition plates 274 rotate to the side surface of the second endless conveyor belt 273 close to the lower side, the aggregate that has not been completely poured into the screening frame 1 in the partition plates 274 will scatter and is not easy to recycle and collect. A guide plate 277 is provided directly below the second endless conveyor belt 273. The guide plate 277 is fixed to the side plate 271 through a fixing strip; the guide plate 277 can guide the fall of the aggregate that has not been completely poured between the partition plates 274 back, and it can be collected through a collection box.

[0041] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0042] The foregoing has shown and described the basic principles, main features and advantages of the present disclosure. Those skilled in the art should understand that the present disclosure is not limited by the above embodiments, and the above embodiments and the descriptions in the specification are only used to illustrate the principles of the present disclosure. Without departing from the spirit and scope of the present disclosure, the present disclosure will have various changes and improvements, and these changes and improvements all fall within the scope of the present disclosure claimed.

Claims

1. An equipment for processing coarse aggregate reactive powder concrete materials, including a screening frame (1), characterized in that, The screening box (1) is in the shape of a rectangular shell frame with an open upper end. A plurality of evenly distributed screening holes (2) are formed at the bottom of the screening box (1). A receiving box (3) is fixedly connected to the bottom of the screening box (1). The receiving box (3) is in the shape of a rectangular shell frame with an open upper end. An opening on the side wall of any end of the receiving box (3) is set as a fine material outlet, and a first guide groove (4) is fixed at the fine material outlet. A support plate (5) is arranged directly below the receiving box (3). A plurality of evenly distributed screening columns (6) are fixedly arranged on the upper end surface of the support plate (5). The number of screening columns (6) is equal to the number of screening holes (2). The screening columns (6) correspond to the screening holes (2) one by one, and the diameter of the screening columns (6) is equal to the diameter of the screening holes (2). The upper ends of the screening columns (6) are all in the shape of a convex hemispherical surface, and the screening columns (6) can all pass through the bottom surface of the receiving box (3) and are slidably clamped with it; The distance between the inner bottom surface of the receiving box (3) and the outer bottom surface of the screening box (1) is greater than the diameter of the screening holes (2). A first support plate (7) is provided. The first support plate (7) is located at the end of the screening box (1) close to the fine material outlet. The upper end of the first support plate (7) is fixedly connected to the lower end surface of the first guide groove (4). A fixing strip is fixedly connected to the side wall of the first support plate (7). The fixing strip is located directly below the support plate (5). A first telescopic cylinder (8) is fixedly installed on the fixing strip. The telescopic rod of the first telescopic cylinder (8) is placed vertically upward. The telescopic rod of the first telescopic cylinder (8) is fixedly connected to the lower end surface of the support plate (5). And when the telescopic rod of the first telescopic cylinder (8) is in the fully retracted state, the distance between the top of the spherical surface at the upper end of the screening column (6) and the outer bottom surface of the screening box (1) is equal to the diameter of the screening holes (2).

2. The processing equipment for a kind of coarse aggregate reactive powder concrete material according to claim 1, characterized in that, A first scraper (9) parallel to the fine material outlet is arranged inside the receiving frame (3). The lower end of the first scraper (9) is attached to the inner bottom surface of the receiving frame (3), the upper end of the first scraper (9) is attached to the outer bottom surface of the screening frame (1), both ends of the first scraper (9) are slidably connected to the inner wall of the receiving frame (3). A plurality of uniformly distributed through holes are formed in the first scraper (9) along the axial direction, and the through holes correspond to the screening columns (6). The upper ends of the screening columns (6) can all pass through the through holes. A first sliding rod (10) placed coaxially is arranged on the side of the first scraper (9) away from the fine material outlet. Both ends of the first sliding rod (10) are fixed to the first scraper (9) through first mounting plates. A pair of symmetrically placed wedge plates (11) are arranged at one end of the through hole away from the fine material outlet. The first sliding rod (10) passes through the wedge plates (11) and is slidably connected to the wedge plates (11). The two sides of the wedge plates (11) parallel to the fine material outlet are both inclined wedge-shaped surfaces, and the inclined directions of the wedge surfaces are both inclined from the end of the wedge plate (11) away from the central axis of the through hole towards the central axis of the first sliding rod (10). Second mounting plates (12) are arranged on the sides of the wedge plates (11) away from the central axis of the through hole. The second mounting plates (12) are all sleeved on the first sliding rod (10) and fixed to the first scraper (9). Springs (13) are fixed between the second mounting plates (12) and the corresponding wedge plates (11). The springs (13) are all sleeved on the first sliding rod (10). A pair of symmetrically placed second telescopic cylinders (14) are arranged at the end of the receiving frame (3) away from the fine material outlet. The telescopic rods of the second telescopic cylinders (14) are placed towards the fine material outlet, and the telescopic rods of the second telescopic cylinders (14) are all fixed to the first scraper (9).

3. The processing equipment for a kind of coarse aggregate reactive powder concrete material according to claim 1, characterized in that, On both side walls of the screening box (1) perpendicular to the fine material outlet, there are detachably arranged valve plates (15). The valve plates (15) can all move upward in the vertical direction. At one end of the screening box (1) away from the first support plate (7), there is a second support plate (16). One end of the second support plate (16) is fixed to the side wall of the screening box (1). On the second support plate (16), there is a first rotating shaft connected by rotation. The first rotating shaft is coaxially placed with the second telescopic cylinder (14). A first gear (17) placed coaxially is fixedly sleeved on the first rotating shaft. The first gear (17) is meshed with a first straight rack (18). The upper end of the first straight rack (18) is fixed to the lower end surface of the support plate (5). A second gear (19) placed coaxially is fixedly sleeved on the first rotating shaft. The second gear (19) is meshed with a second straight rack (20) placed vertically upward. The second straight rack (20) is slidably clamped with the second support plate (16). The second straight rack (20) can slide up and down along the side wall of the second support plate (16). A connecting piece (21) is fixed to the upper end of the second straight rack (20). The valve plates (15) are all fixed to the connecting piece (21). The diameter of the second gear (19) is larger than the diameter of the first gear (17). A second scraper (22) is arranged inside the screening box (1). The lower end surface of the second scraper (22) is in contact with the inner bottom surface of the screening box (1). The second scraper (22) is placed in a parallel state with the valve plate (15). The second scraper (22) can move inside the screening box (1).

4. A processing device for a coarse aggregate reactive powder concrete material according to claim 3, characterized in that, There is a conveyor belt transport mechanism (23) directly below the support plate (5). The conveyor belt transport mechanism (23) includes a pair of symmetrically placed first support frames (231). Between the first support frames (231), there are a pair of symmetrically placed first rollers. The first rollers are coaxially placed with the second telescopic cylinder (14). A first annular conveyor belt (232) is sleeved between the two first rollers. A first rotating motor (233) is fixedly installed on any one of the first support frames (231). The output end of the first rotating motor (233) is provided with a second rotating shaft. The second rotating shaft is rotatably connected to the first support frame (231). The second rotating shaft is coaxially placed with and fixedly connected to any one of the first rollers. There are a pair of symmetrically placed second material guiding grooves (24). The two second material guiding grooves (24) are located on both sides of the screening box (1). And the second material guiding grooves (24) are all fixedly connected to the lower end surface of the screening box (1) near the valve plate (15). The lower end of the first support plate (7) is fixed to the first support frame (231) on the side of the conveyor belt transport mechanism (23) close to the fine material outlet. The lower end of the second support plate (16) is fixed to the other first support frame (231) of the conveyor belt transport mechanism (23).

5. The processing equipment for a kind of coarse aggregate reactive powder concrete material according to claim 3, characterized in that, The second scraping plates (22) are provided as two which are placed in parallel and symmetrically. Both of the second scraping plates (22) are located inside the screening frame (1). A pair of symmetrically placed second sliding rods (25) are provided inside the screening frame (1). The second sliding rods (25) are both placed coaxially with the first sliding rod (10). The second sliding rods (25) are respectively located on both sides inside the screening frame (1). Third mounting plates are fixed at both ends of the second sliding rods (25). The third mounting plates are both fixedly connected to the frame walls inside the screening frame (1) which are perpendicular to the valve plate (15). The second sliding rods (25) all pass through the second scraping plates (22). The second scraping plates (22) can move axially along the second sliding rods (25). The second scraping plates (22) correspond to the valve plates (15) one by one. Connecting rods (26) are hinged at both ends of the upper end surfaces of the second scraping plates (22). The other ends of the connecting rods (26) are respectively hinged to the upper ends of the corresponding valve plates (15). When the lower end surfaces of the valve plates (15) are in contact with the inner bottom surface of the screening frame (1), the two second scraping plates (22) are in contact with each other and located at the middle position of the screening frame (1).

6. The processing equipment for a kind of coarse aggregate reactive powder concrete material according to claim 1, characterized in that, A feeding mechanism (27) is provided. The feeding mechanism (27) includes a pair of side plates (271) which are placed obliquely upward. The two side plates (271) are placed in parallel. The upper ends of the side plates (271) are both directly above the screening frame (1). A pair of second rotating rollers (272) are provided between the two side plates (271). The second rotating rollers (272) are respectively located at the upper and lower ends of the side plates (271). The second rotating rollers (272) are both placed coaxially with the first sliding rod (10). Both ends of the second rotating rollers (272) are rotatably connected to the side plates (271). A second endless conveyor belt (273) is sleeved between the second rotating rollers (272). A plurality of evenly distributed partition plates (274) are fixed on the outer side wall of the second endless conveyor belt (273). A storage bin (275) is fixed at a position close to the lower end of the side plate (271). One side of the storage bin (275) close to the second endless conveyor belt (273) is open. A second support frame which is placed vertically downward is fixed at the end of the storage bin (275) far from the side plate (271). A third support frame which is placed vertically downward is fixed at a position on the side plate (271) close to the second support plate (16). A second rotating motor (276) is fixed on any one of the side plates (271). A third rotating shaft is provided at the output end of the second rotating motor (276). The third rotating shaft is placed coaxially with any one of the second rotating rollers (272). The third rotating shaft passes through the side plate (271) and is rotatably connected to the side plate (271). One end of the third rotating shaft is fixed to the second rotating roller (272).

7. The processing equipment for a kind of coarse aggregate reactive powder concrete material according to claim 2, characterized in that, The bottoms of the second telescopic cylinders (14) are both fixedly connected to the third support frame.

8. An apparatus for processing a reactive powder concrete material for coarse aggregates according to claim 6, wherein, A guide plate (277) is provided directly below the second endless conveyor belt (273). The guide plate (277) is fixedly connected to the side plate (271) through a fixing strip.

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