Zinc powder grading stock bin

Abstract

The utility model relates to the technical field of particle size grading bins, in particular to a zinc powder grading bin. The structure is simple, the occupied area is small, the zinc powder grading treatment time is effectively shortened, the zinc powder screening efficiency and effect are improved, and more energy is saved; comprising a machine frame and a grading screening mechanism installed on the machine frame, the grading screening mechanism comprises a material collecting bin fixedly installed on the machine frame and a grading screening device located on the upper portion of the material collecting bin, and the grading screening device comprises a flaring shell, a turnover plate and a flexible screen, and the turnover plate and the flexible screen are installed on the two sides of the flaring shell in a hinged mode. Driving cylinders for providing power for rotation of the two overturning plates are installed on the two sides of the flaring shell, the two ends of the flexible screen are connected with the two overturning plates respectively, and vibration motors are installed on the overturning plates. Furthermore, the driving cylinder is installed on the flaring shell in a hinged mode, the output end of the driving cylinder is hinged to the overturning plates, and the two overturning plates are symmetrically arranged on the two sides of the flaring shell in a V shape.

Description

Technical Field

[0001] The utility model relates to the technical field of particle size classification silos, in particular to a zinc powder classification silo. Background Art

[0002] As we all know, in the production process of zinc powder, the prices of zinc powders with different particle sizes are obviously different in the market, and the uses of zinc powders with different particle sizes are also very different. Therefore, it is of great significance to improve the efficiency of enterprises to separate ultra-fine zinc powder as much as possible. The current zinc powder grading equipment mainly includes airflow grading devices and traditional vibrating screen grading devices.

[0003] For example, a Chinese utility model patent discloses an online grading system for aluminum powder production (publication (announcement) number CN205183162U), which includes an online feeder, a feed cooler, a circulating fan, a feed pipe, a top dust collector, a silo, a feed pipe, a turbine grading unit, a collector, a pulse dust collector, a grading fan and a grading cooler, providing a grading system directly connected to the aluminum powder production system, which can directly connect the aluminum powder production system with the grading system, and the aluminum powder produced by the production system is directly conveyed to the grading system for grading, thereby reducing the aluminum powder transportation and temporary storage process and reducing labor intensity; reducing the packaging process in the aluminum powder production process, the feeding process in the grading process, etc., reducing the flying of aluminum powder dust, reducing environmental pollution, reducing employee physical damage and safety hazards.

[0004] However, when the inventors implemented this device, they found the following defects: the airflow grading device has a complex structure, occupies a large area, needs to be equipped with a large wind fan to provide pressurized airflow, and consumes a lot of energy; and the traditional vibration screening grading device mostly adopts a centralized screening method when performing zinc powder screening and grading. Zinc powder is easy to concentrate and aggregate, and small particles of zinc powder mixed in large particles are not easy to fall, and the screening time is long; when large particles of zinc powder are discharged, too much small particles of zinc powder are mixed, and the screening effect needs to be further improved. Utility Model Content

[0005] Technical issues

[0006] In view of the deficiencies in the prior art, the utility model provides a zinc powder grading silo which has a simple structure, occupies a small area, effectively shortens the zinc powder grading processing time, improves the zinc powder screening efficiency and effect, and is more energy-saving.

[0007] Technical Solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a zinc powder grading silo; comprising a frame and a grading screening mechanism installed on the frame, the grading screening mechanism comprising a collection bin fixedly installed on the frame and a grading screener located on the upper part of the collection bin, the grading screener comprising a flared shell, a flip plate hingedly installed on both sides of the flared shell and a soft screen, drive cylinders for providing power for the rotation of the two flip plates are installed on both sides of the flared shell, the two ends of the soft screen are respectively connected to the two flip plates, and a vibration motor is installed on the flip plate; further, the drive cylinder is hingedly installed on the flared shell, the output end of the drive cylinder is hinged to the flip plate, and the two flip plates are symmetrically arranged in a V shape on both sides of the flared shell.

[0009] As a preferred solution, it also includes two clamping plates, the two ends of the soft screen are fixedly connected to the two clamping plates respectively, springs are installed at the bottom of the clamping plates, the clamping plates are elastically connected to the corresponding flip plates through the springs, and the vibration motor is fixedly installed on the clamping plates.

[0010] As a preferred solution, a discharge port is provided at the upper portion of the flared shell, a material guide trough is installed at the discharge port of the flared shell, and a large particle storage bin arranged corresponding to the material guide trough is installed on the frame.

[0011] As a preferred solution, the discharge port, guide trough and large particle storage bin are each in two groups, and the two groups of discharge ports are symmetrically arranged on the upper parts of both sides of the expanded shell; further, the large particle zinc powder at the corresponding discharge port is introduced into the corresponding large particle storage bin through the guide trough.

[0012] As a preferred solution, it also includes a dispersion feeder installed on the top of the expanded shell, and the dispersion feeder includes a feed shell, a dispersion feed roller rotatably installed in the feed shell, and a motor that provides power for the rotation of the dispersion feed roller.

[0013] As a preferred solution, the grading screening mechanism is composed of multiple groups, and the multiple groups of grading screening mechanisms are arranged on the frame from top to bottom, and the screen diameters of the soft screens on the multiple grading screening mechanisms gradually decrease from top to bottom; more specifically, the feeding shell on one of the grading screening mechanisms is connected to the collecting bin of an adjacent group of grading screening mechanisms above.

[0014] As a preferred solution, a supporting net is installed in the expanded shell; further, the supporting net is a large-diameter steel wire mesh.

[0015] As a preferred solution, receiving drawers are detachably mounted on both sides of the expanded shell; the receiving drawers are located below the contact point between the soft screen and the inner wall of the expanded shell.

[0016] Beneficial Effects

[0017] Compared with the prior art, the utility model provides a zinc powder grading silo, which has the following beneficial effects: in the zinc powder grading silo, in the initial state, the two flip plates are away from each other, the soft screen is pulled to a horizontal state, the zinc powder is put into the soft screen, the vibration motor is started, and under the action of vibration, the zinc powder is gradually spread on the soft screen, at this time the output end of the driving cylinder is extended, the two flip plates rotate around the hinge point and synchronously move toward the middle of the flared shell, at this time the soft screen is naturally drooping in a V shape, the dispersed zinc powder slides downward along the V-shaped body formed by the soft screen, so that the upper and lower positions of each zinc powder change reciprocatingly, the above steps are repeated, the zinc powder is reciprocatedly screened, small particles of zinc powder enter the aggregate silo, and large particles of zinc powder are retained at the soft screen; the structure is simple, the floor space is small, the zinc powder grading treatment time is effectively shortened, the zinc powder screening efficiency and effect are improved, and it is more energy-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0020] Figure 3 The utility model Figure 2 Schematic diagram of the cross-section structure at AA in the middle;

[0021] Figure 4 The utility model Figure 3 Schematic diagram of the cross-section structure at BB in the middle;

[0022] Markings in the attached figure: 1. Frame; 2. Aggregate bin; 3. Expanded shell; 4. Flip plate; 5. Soft screen; 6. Drive cylinder; 7. Vibration motor; 8. Clamp; 9. Spring; 10. Discharge port; 11. Guide trough; 12. Large particle storage bin; 13. Feed shell; 14. Dispersed feed roller; 15. Motor; 16. Support net; 17. Receiving drawer. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0024] As described in the background technology, an online grading system for aluminum powder production; the airflow grading device has a complex equipment structure, occupies a large area, and needs to be equipped with a large wind fan to provide pressurized airflow, which consumes a lot of energy; and the traditional vibration screening grading device mostly adopts a centralized screening method when performing zinc powder screening and grading. Zinc powder is easy to concentrate and aggregate, and small zinc powder particles mixed in large zinc powder particles are not easy to fall, and the screening time is long; when large zinc powder particles are discharged, too much small zinc powder particles are mixed, and the screening effect needs to be further improved.

[0025] In order to solve this technical problem, the utility model provides a zinc powder grading silo, which is used for the screening and grading treatment of zinc powder.

[0026] Specifically, please refer to Figure 1-4 The zinc powder grading silo specifically includes: a frame 1 and a grading screening mechanism installed on the frame 1, the grading screening mechanism includes a collection bin 2 fixedly installed on the frame 1 and a grading screener located on the upper part of the collection bin 2, the grading screener includes a flared shell 3, a flip plate 4 hingedly installed on both sides of the flared shell 3 and a soft screen 5, and driving cylinders 6 for providing power for the rotation of the two flip plates 4 are installed on both sides of the flared shell 3, and the two ends of the soft screen 5 are respectively connected to the two flip plates 4, and a vibration motor 7 is installed on the flip plate 4; further, the driving cylinder 6 is hingedly installed on the flared shell 3, and the output end of the driving cylinder 6 is hinged to the flip plate 4, and the two flip plates 4 are symmetrically arranged in a V shape on both sides of the flared shell 3; further, the soft screen 5 can adopt a dense fiber net or other screens with good plasticity.

[0027] The zinc powder grading silo provided by the utility model has the following characteristics: in the initial state, the two flip plates 4 are away from each other, the soft screen 5 is straightened and horizontal, the zinc powder is put into the soft screen 5, the vibration motor 7 is started, and under the action of vibration, the zinc powder is gradually spread on the soft screen 5, at this time, the output end of the driving cylinder 6 is extended, the two flip plates 4 rotate around the hinge point and move synchronously toward the middle of the expanded shell 3, at this time, the soft screen 5 is V-shaped and naturally droops, and the dispersed zinc powder slides downward along the V-shaped body formed by the soft screen 5, so that the upper and lower positions of each zinc powder change reciprocally, and the above steps are repeated to perform reciprocating screening on the zinc powder, so that small particles of zinc powder enter the aggregate silo 2, and large particles of zinc powder are retained at the soft screen 5; the structure is simple, the floor space is small, the zinc powder grading treatment time is effectively shortened, the zinc powder screening efficiency and effect are improved, and it is more energy-saving.

[0028] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0029] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0030] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0031] Example 1

[0032] Please refer to Figure 1-4 A zinc powder grading silo comprises a frame 1 and a grading screening mechanism installed on the frame 1, the grading screening mechanism comprises a collection bin 2 fixedly installed on the frame 1 and a grading screener located on the upper part of the collection bin 2, the grading screener comprises a flared shell 3, a flip plate 4 and a soft screen 5 hingedly installed on both sides of the flared shell 3, a driving cylinder 6 for providing power for the rotation of the two flip plates 4 is installed on both sides of the flared shell 3, the two ends of the soft screen 5 are respectively connected to the two flip plates 4, and a vibration motor 7 is installed on the flip plate 4; it also includes two clamping plates 8, the two ends of the soft screen 5 are respectively fixedly connected to the two clamping plates 8, springs 9 are installed at the bottom of the clamping plates 8, the clamping plates 8 are elastically connected to the corresponding flip plates 4 through the springs 9, and the vibration motor 7 is fixedly installed on the clamping plates 8; more specifically, one end of the spring 9 is fixedly connected to the clamping plate 8, and the other end of the spring 9 is fixedly connected to the flip plate 4.

[0033] The zinc powder grading silo provided in this embodiment can make the clamping plate 8 and the flip plate 4 elastically contact through the spring 9. When the vibration motor 7 drives the clamping plate 8 to vibrate, the vibration effect can be improved under the action of the spring 9. The clamping plate 8 can drive the soft screen 5 to vibrate synchronously, thereby accelerating the screening processing efficiency of the zinc powder on the soft screen 5 and further shortening the zinc powder screening processing time.

[0034] Example 2

[0035] The zinc powder classification silo provided in Example 1 is further optimized. Specifically, Figure 3-4 As shown, a discharge port 10 is provided at the upper portion of the expanded shell 3, a guide trough 11 is installed at the discharge port 10 of the expanded shell 3, and a large particle storage bin 12 arranged corresponding to the guide trough 11 is installed on the frame 1; the discharge port 10, the guide trough 11 and the large particle storage bin 12 are all provided in two groups, and the two groups of discharge ports 10 are symmetrically arranged at the upper portions of both sides of the expanded shell 3; further, the large particle zinc powder at the corresponding discharge port 10 is introduced into the corresponding large particle storage bin 12 through the guide trough 11.

[0036] The zinc powder grading silo provided in the present embodiment, when it is necessary to discharge the large-particle zinc powder on the soft screen 5, the output end of the driving cylinder 6 is shortened, the two flip plates 4 are synchronously moved away, the soft screen 5 is gradually stretched, and the large-particle zinc powder is concentrated in the middle of the soft screen 5. When the soft screen 5 is higher than the discharge port 10, the vibration motor 7 is started, and the large-particle zinc powder is discharged through the discharge port 10 under the action of vibration and gravity, and the large-particle zinc powder is received by the guide trough 11 and then enters the large-particle storage silo 12 for storage, so as to realize the rapid discharge of the large-particle zinc powder after screening. The discharge port 10, the guide trough 11 and the large-particle storage silo 12 are arranged in two groups, which can improve the smoothness of the discharge of the screened large-particle zinc powder and further shorten the discharge time of the large-particle zinc powder.

[0037] Example 3

[0038] The zinc powder classification silo provided in Example 2 is further optimized, such as Figure 3 As shown, it also includes a dispersion feeder installed on the top of the expansion shell 3, and the dispersion feeder includes a feeding shell 13, a dispersion feeding roller 14 rotatably installed in the feeding shell 13, and a motor 15 that provides power for the rotation of the dispersion feeding roller 14.

[0039] The zinc powder grading silo provided in this embodiment is configured to place zinc powder into a feeding shell 13, start a motor 15, and drive a dispersion feeding roller 14 to rotate, so that the zinc powder is quantitatively fed to the soft screen 5, thereby avoiding concentrated feeding of the zinc powder and ensuring the screening treatment effect of the zinc powder.

[0040] Specifically, there are multiple groups of grading and screening mechanisms, which are arranged from top to bottom on the frame 1 (not shown in the figure), and the screen diameters of the soft screens 5 on the multiple grading and screening mechanisms gradually decrease from top to bottom; more specifically, the feeding shell 13 on one of the grading and screening mechanisms is connected to the collecting bin 2 of an adjacent group of grading and screening mechanisms above; the zinc powder is screened step by step from each grading and screening mechanism in turn, and the zinc powder of each particle size is screened layer by layer, so as to further improve the refinement degree of the zinc powder screening particle size and the screening effect.

[0041] Specifically, a supporting net 16 is installed in the expanded shell 3; further, the supporting net 16 adopts a large-diameter steel wire mesh; the supporting net 16 can support and limit the bottom of the soft screen 5 to prevent the soft screen 5 from falling below the expanded shell 3, thereby preventing the zinc powder at the soft screen 5 from falling directly into the aggregate bin 2 without being screened by the soft screen 5.

[0042] Specifically, receiving drawers 17 are detachably installed on both sides of the expanded shell 3; the receiving drawer 17 is located below the contact point between the soft screen 5 and the inner wall of the expanded shell 3; the receiving drawer 17 can receive the large-particle zinc powder that is missed between the soft screen 5 and the expanded shell 3, avoiding the large-particle zinc powder from directly entering the aggregate bin 2, thereby ensuring the screening and grading accuracy of the zinc powder.

[0043] The use process of the zinc powder grading silo provided by the utility model is as follows: zinc powder is put into the soft screen 5, and the vibration motor 7 is started. Under the action of vibration, the zinc powder is gradually spread on the soft screen 5. At this time, the output end of the driving cylinder 6 is extended, and the two flip plates 4 rotate around the hinge point and move synchronously toward the middle of the expanded shell 3. At this time, the soft screen 5 naturally hangs down in a V shape, and the dispersed zinc powder slides down along the V-shaped body formed by the soft screen 5, so that the upper and lower positions of each zinc powder change reciprocatingly. Repeat the above steps to perform reciprocating screening on the zinc powder. Small-particle zinc powder enters the collecting bin 2, and large-particle zinc powder is intercepted at the soft screen 5; when the large-particle zinc powder on the soft screen 5 needs to be discharged, the output end of the driving cylinder 6 is shortened, the two flip plates 4 are synchronously moved away, the soft screen 5 is gradually stretched, and the large-particle zinc powder is concentrated in the middle of the soft screen 5. When the soft screen 5 is higher than the discharge port 10, the vibration motor 7 is started, and the large-particle zinc powder is discharged through the discharge port 10 under the action of vibration and gravity, and the large-particle zinc powder is received by the guide trough 11 and enters the large-particle storage bin 12 for storage.

[0044] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.

Claims

1. A zinc powder grading silo, It is characterized in that It comprises a frame (1) and a grading and screening mechanism installed on the frame (1); The grading screening mechanism comprises a material collecting bin (2) fixedly mounted on a frame (1) and a grading screener located on the upper part of the material collecting bin (2); the grading screener comprises an expanded shell (3), a flip plate (4) hingedly mounted on both sides of the expanded shell (3) and a soft screen (5); drive cylinders (6) for providing power for the rotation of the two flip plates (4) are mounted on both sides of the expanded shell (3); the two ends of the soft screen (5) are respectively connected to the two flip plates (4); and a vibration motor (7) is mounted on the flip plate (4).

2. The zinc powder grading silo according to claim 1, It is characterized in that It also includes two clamping plates (8), the two ends of the soft screen (5) are fixedly connected to the two clamping plates (8), the bottom of each clamping plate (8) is provided with a spring (9), the clamping plates (8) are elastically connected to the corresponding flip plates (4) via the springs (9), and the vibration motor (7) is fixedly mounted on the clamping plates (8).

3. The zinc powder grading silo according to claim 2, It is characterized in that A discharge port (10) is provided at the upper portion of the expanded shell (3), a material guide trough (11) is installed at the discharge port (10) of the expanded shell (3), and a large particle storage bin (12) arranged corresponding to the material guide trough (11) is installed on the frame (1).

4. The zinc powder grading silo according to claim 3, It is characterized in that The discharge ports (10), the guide troughs (11) and the large particle storage bins (12) are each provided in two groups, and the two groups of discharge ports (10) are symmetrically arranged at the upper parts of both sides of the expanded shell (3).

5. The zinc powder grading silo according to claim 4, It is characterized in that It also includes a dispersion feeder installed on the top of the expansion shell (3), the dispersion feeder includes a feed shell (13), a dispersion feed roller (14) rotatably installed in the feed shell (13), and a motor (15) providing power for the rotation of the dispersion feed roller (14).

6. The zinc powder grading silo according to claim 5, It is characterized in that The grading screening mechanisms are multiple groups, and the multiple groups of grading screening mechanisms are arranged on the frame (1) from top to bottom. The screen diameters of the soft screens (5) on the multiple grading screening mechanisms gradually decrease from top to bottom.

7. The zinc powder grading silo according to claim 1, It is characterized in that A supporting net (16) is installed in the expanded shell (3).

8. The zinc powder grading silo according to claim 1, It is characterized in that A receiving drawer (17) is detachably mounted on both sides of the expanded shell (3); the receiving drawer (17) is located below the contact point between the soft screen (5) and the inner wall of the expanded shell (3).

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