Online grading device for calcined zinc oxide powder

Abstract

The utility model discloses a calcined zinc oxide powder on-line grading device which comprises a conveyor belt conveyor, partition plate assemblies which are evenly distributed are arranged on a conveyor belt of the conveyor belt conveyor, every two adjacent partition plate assemblies form a storage unit, and a cover plate is arranged on the upper side of the conveyor belt conveyor. The upper surface of the cover plate is sequentially provided with a feeding pipe and a plurality of sets of evenly-distributed screen holes in the material conveying direction, the upper surface, corresponding to each set of screen holes, of the cover plate is provided with material pumping pieces, and the multiple sets of screen holes are sequentially enlarged in the material conveying direction. According to the online grading device for the calcined zinc oxide powder, continuous online multi-stage screening grading can be achieved in the production process, the screen does not need to be frequently replaced, zinc oxide can be cooled in the screening process, operation is easy, the working efficiency can be effectively improved, and therefore the production efficiency is improved, and use is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to a calcined zinc oxide production equipment technical field, specifically is a calcined zinc oxide powder online grading device. BACKGROUND

[0002] ‌Calcined zinc oxide is an oxide zinc product obtained by high temperature calcination treatment. Calcination is a modification, purification, decomposition, oxidation and reduction chemical process, mainly used for improving the physical and chemical properties of zinc oxide. Calcined zinc oxide has high purity, usually above 99.5%, and particle diameter between 0.1 to 10 microns. There are two main production methods for calcined zinc oxide: direct method and indirect method. The direct method uses zinc ore or impurities and coke to react, removes impurities by high temperature calcination, and obtains zinc oxide with high purity. The indirect method uses smelted zinc ingot and zinc slag, and the cost is greatly affected by raw materials.

[0003] The particle size of calcined zinc oxide is not uniform after production, so it needs to be classified to facilitate use in different fields. The existing classification of zinc oxide generally uses vibrating screens with different mesh sizes for screening and classification. However, when the classification quantity is large, multiple vibrating screens are needed for screening, or the screen mesh needs to be replaced for multiple screenings after screening, which cannot realize online screening and classification of zinc oxide during production, and the operation is complicated and the work efficiency is low. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art, and provide a calcined zinc oxide powder online grading device, which can realize uninterrupted online multi-stage screening and classification during production without frequent replacement of screen meshes, and can cool the zinc oxide during screening. The operation is simple, the work efficiency can be effectively improved, the production efficiency can be improved, and the use is convenient, which can effectively solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a calcined zinc oxide powder online grading device, including a conveyor belt conveyor, the conveyor belt conveyor is equipped with evenly distributed baffle assembly on the conveyor belt, two adjacent baffle assemblies are a storage unit, and the upper side of the conveyor belt conveyor is equipped with a cover plate, the upper surface of the cover plate is sequentially provided with a feeding pipe and a plurality of groups of evenly distributed screen holes along the material conveying direction, and the upper surface of the cover plate corresponding to each group of screen holes is provided with a material extraction piece, and a plurality of groups of screen holes are sequentially increased along the material conveying direction.

[0006] As a preferred technical scheme of the utility model, the baffle assembly includes a baffle installed on the conveyor belt, and the top and side edge of the baffle are both provided with a sealing air bag.

[0007] As a preferred technical scheme of the utility model, the side surface of both ends of the partition plate is equipped with a side plate, and a magnet piece is installed in the groove far from the partition plate.

[0008] As a preferred technical scheme of the utility model, the drawing-off part comprises a collecting hopper installed at the sieve hole part, the collecting hopper is provided with a collecting pipe at the discharge port, and the discharge port of the collecting pipe is connected with an external cyclone separator through an external drawing-off pump.

[0009] As a preferred technical scheme of the utility model, the upper side of the cover plate is provided with an air pipe, and the air pipe is provided with a connecting pipe penetrating through the bottom of the cover plate at the bottom corresponding to each group of sieve holes.

[0010] As a preferred technical scheme of the utility model, the distance between the adjacent two groups of sieve holes is greater than the length of one storage unit.

[0011] As a preferred technical scheme of the utility model, the distance between the feeding pipe and the sieve hole adjacent thereto is greater than the length of one storage unit.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] The calcined zinc oxide powder online grading device of the utility model example can realize uninterrupted online multi-stage screening and grading in the production process, does not need to frequently replace the screen, can cool the zinc oxide in the screening process, is simple to operate, can effectively improve the work efficiency, thereby improves the production efficiency, and is convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of the utility model;

[0015] Figure 2 It is a sectional view structural schematic view of the utility model;

[0016] Figure 3 It is a structural schematic view of the cover plate in the utility model;

[0017] Figure 4 It is a structural schematic view of the partition plate assembly in the utility model.

[0018] In the drawing: 1 is a conveyor belt conveyor, 2 is a cover plate, 3 is a sieve hole, 4 is a feeding pipe, 5 is a partition plate, 51 is a sealing air bag, 6 is a side plate, 61 is a magnet piece, 7 is a collecting hopper, 71 is a collecting pipe, 8 is an air pipe, 81 is a connecting pipe. DETAILED DESCRIPTION

[0019] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0020] Please refer to Figures 1-4 The utility model provides a technical scheme: a kind of calcined zinc oxide powder online grading device, including conveyer 1, the conveyer 1 is equipped with the baffle assembly of uniform distribution on conveyer, two groups of adjacent baffle assembly are a storage unit, and the upper side of conveyer 1 is equipped with cover plate 2, the upper surface of cover plate 2 is sequentially provided with inlet pipe 4 and several groups of uniformly distributed screen hole 3 along material conveying direction, and cover plate 2 and the upper surface corresponding to each group of screen hole 3 are equipped with material extraction piece, and several groups of screen hole 3 are sequentially larger along material conveying direction, and when zinc oxide powder is moved by conveyer 1, screen classification is carried out once when passing through different groups of screen hole 3, and zinc oxide powder is classified and extracted sequentially from fine to coarse.

[0021] Further, the baffle assembly includes a baffle 5 mounted on the conveyor belt, the top and side edges of the baffle 5 are provided with a sealing air bag 51, the sealing air bag 51 is used to seal the sealing effect between the baffle 5 and the cover plate 2, and between the baffle 5 and the fixed frame of the conveyor belt conveyor 1, the side surfaces of both ends of the baffle 5 are provided with side plates 6, and the recesses away from the baffle 5 one end of the side plate 6 are mounted with magnet pieces 61, and the two magnet pieces 61 can improve the sealing effect of the storage unit by mutual attraction.

[0022] Further, the material extraction piece includes a material collecting hopper 7 mounted at the screen hole 3 position, the discharge port of the material collecting hopper 7 is provided with a material collecting pipe 71, and the discharge port of the material collecting pipe 71 is connected with an external cyclone separator through an external material extraction pump, when the storage unit storing zinc oxide powder and the lower side space of the material collecting hopper 7 have an overlapping part, the high part of the external fan enters the storage unit through the air pipe 8 and the connecting pipe 81, so that the zinc oxide powder in the storage unit is blown away, and the zinc oxide powder is stirred.

[0023] Further, the upper side of the cover plate 2 is provided with an air pipe 8, and the bottom of the air pipe 8 corresponding to each group of screen holes 3 is provided with a connecting pipe 81 penetrating through the bottom of the cover plate 2.

[0024] Further, the distance between the two adjacent groups of screen holes 3 is greater than the length of one storage unit, so that the next screening can be carried out only after the previous screening is completed.

[0025] Further, the distance between the feeding pipe 4 and the adjacent screen hole 3 is greater than the length of a storage unit, so as to avoid the gas in the storage unit from entering the feeding pipe 4.

[0026] The conveying belt conveyor 1 used in the utility model is a common conveying device in the prior art, and its working mode and circuit structure are all known technologies, which will not be described here.

[0027] In use:

[0028] The discharge port of the external fan is connected with the air pipe 8, and the discharge port of the material collecting pipe 71 is connected with the external cyclone separator through the external material pumping pump;

[0029] The zinc oxide powder is conveyed to the conveying belt conveyor 1 through the feeding pipe 4;

[0030] When the storage unit storing the zinc oxide powder overlaps with the lower side space of the material collecting hopper 7, the high part of the external fan enters the storage unit through the air pipe 8 and the connecting pipe 81, so as to blow away the zinc oxide powder in the storage unit and stir the zinc oxide powder;

[0031] At the same time, the external material pumping pump extracts the air in the storage unit, the screen hole 3 filters the zinc oxide powder, and part of the zinc oxide powder is extracted together with the air and enters the external cyclone separator for separation;

[0032] During the movement of the conveying belt conveyor 1 driven by the zinc oxide powder, the zinc oxide powder is screened each time when passing through the material collecting hopper 7, so as to perform online grading operation on the zinc oxide powder.

[0033] The utility model can realize uninterrupted online multi-stage screening and grading in the production process, does not need to frequently replace the screen, can cool the zinc oxide in the screening process, is simple to operate, can effectively improve the work efficiency, thereby improves the production efficiency, and is convenient to use.

[0034] The undisclosed parts in the utility model are all prior art, and the specific structure, material and working principle will not be described in detail. Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An on-line classification device of calcined zinc oxide powder, comprising a conveyor belt conveyor (1), characterized in that: The conveying belt conveyor (1) is provided with uniformly distributed partition plate assemblies, two adjacent partition plate assemblies form a storage unit, and the upper side of the conveying belt conveyor (1) is provided with a cover plate (2), the upper surface of the cover plate (2) is sequentially provided with a feeding pipe (4) and a plurality of uniformly distributed screen holes (3) along the material conveying direction, and the cover plate (2) is provided with a material extraction part corresponding to the upper surface of each screen hole (3), and the plurality of screen holes (3) are sequentially increased along the material conveying direction.

2. The calcined zinc oxide powder in-line classification device of claim 1, wherein: The partition plate assembly comprises a partition plate (5) mounted on the conveying belt, and the top and side edges of the partition plate (5) are provided with sealing air bags (51).

3. The calcined zinc oxide powder in-line classification device of claim 2, wherein: The side surface of the two ends of the partition plate (5) is provided with a side plate (6), and the recess at the end of the side plate (6) away from the partition plate (5) is provided with a magnet piece (61).

4. The calcined zinc oxide powder in-line classification device of claim 1, wherein: The material extraction part comprises a material collecting hopper (7) mounted at the screen hole (3) position, the discharge port of the material collecting hopper (7) is provided with a material collecting pipe (71), and the discharge port of the material collecting pipe (71) is connected with an external cyclone separator through an external material extraction pump.

5. The calcined zinc oxide powder in-line classification device of claim 1, wherein: The upper side of the cover plate (2) is provided with an air pipe (8), and the bottom of the air pipe (8) corresponding to each screen hole (3) is provided with a connecting pipe (81) penetrating through the bottom of the cover plate (2).

6. The calcined zinc oxide powder in-line classification device of claim 1, wherein: The distance between the two adjacent screen holes (3) is greater than the length of one storage unit.

7. The calcined zinc oxide powder in-line classification device of claim 1, wherein: The distance between the feeding pipe (4) and the screen hole (3) adjacent to it is greater than the length of one storage unit.

Images