Fine powder screening device

Abstract

The utility model provides a fine powder screening device which solves the technical problem that in the using process of an existing fine powder screening device, the device is prone to rusting or metal elements are mixed into screened materials due to abrasion, and the purity of the materials is reduced. Comprising a mixing assembly which comprises a ceramic mixing box and a first stirring assembly at least partially located in the ceramic mixing box, and a stirring paddle of the first stirring assembly is a ceramic stirring paddle; the drying assembly comprises a ceramic drying box, and the ceramic drying box is provided with a discharging piece; the screening assembly comprises an air bag and a screening cylinder arranged in the air bag, and the air bag is connected with the discharging piece; the recovery assembly comprises a suction machine and a ceramic recovery box which are connected with each other, the suction machine is connected with the screening barrel through a suction pipe, the whole body is made of ceramic materials, and the situation that due to rusting or abrasion, metal elements are mixed into screened materials, and the purity of the materials is reduced is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of screening devices, in particular to a fine powder screening device. Background Art

[0002] The production of foam ceramics requires the use of ceramic powder. A foaming agent is added to a ceramic slurry made from the ceramic powder. The foaming agent decomposes during mixing to produce gas, which expands the slurry into a foam. This foam is then dried and sintered to produce the foam ceramic. Therefore, the quality of the ceramic powder determines the production quality of the foam ceramic. During the powder production process, a fine powder screening device is required to separate the ceramic powder of acceptable particle size for the next manufacturing step.

[0003] Although the powder screening device of the prior art can complete the screening operation in terms of the dimension of powder screening, since the screening device body is made of metal raw materials, it is easy to rust during long-term use or metal elements are mixed into the screening material due to wear, resulting in reduced material purity. Utility Model Content

[0004] The purpose of the utility model is to provide a fine powder screening device to solve the technical problem that in the current ceramic fine powder screening process, the device is prone to rust or metal elements are mixed into the screening material due to wear, resulting in reduced material purity.

[0005] The present invention is achieved through the following technical solutions:

[0006] A fine powder screening device comprises a mixing component, a drying component, a screening component and a recovery component;

[0007] A mixing assembly comprising a ceramic mixing box and a first stirring assembly at least partially located within the ceramic mixing box, wherein a stirring paddle of the first stirring assembly is a ceramic stirring paddle;

[0008] A drying assembly, comprising a ceramic drying oven, wherein the ceramic drying oven is provided with a discharge member;

[0009] A screening assembly, comprising an airbag and a screening cylinder disposed inside the airbag, wherein the airbag is connected to the discharge member;

[0010] A recovery assembly, comprising a suction machine and a ceramic recovery box connected to each other, wherein the suction machine is connected to the screening drum via a suction pipe;

[0011] The drying component, the screening component and the recovery component are sequentially arranged to form a working unit. There are two working units, and the ceramic drying boxes in the two working units are respectively connected to the top and bottom of the ceramic mixing box.

[0012] In some embodiments, the drying assembly further includes a second stirring assembly at least partially located in the ceramic drying box, and the stirring paddle of the second stirring assembly is a ceramic stirring paddle.

[0013] In some embodiments, a heating wire is provided on the inner wall of the ceramic drying box.

[0014] In some embodiments, the discharge member is a discharge nozzle.

[0015] In some embodiments, the ceramic drying oven is provided with an air blowing assembly.

[0016] In some embodiments, the blowing assembly includes a plurality of blowing pipes connected to the bottom of the ceramic drying box.

[0017] In some embodiments, the screening cylinder includes a cylinder body and a plurality of screening plates arranged in the cylinder body and spaced apart along the axial direction of the cylinder body.

[0018] The technical solution of the utility model has at least the following advantages and beneficial effects:

[0019] (1) The utility model is made of ceramic material throughout to prevent metal elements from being mixed into the screening material due to rust or wear, which would reduce the purity of the material.

[0020] (2) The utility model forms a slurry by first forming ceramic powder in a ceramic mixing box, and then the slurry is deposited in the ceramic mixing box to separate the slurry into upper and lower layers. Ceramic particles of different sizes can be preliminarily separated from the separated upper and lower slurries, and further screening is performed through two sets of working units.

[0021] (3) The utility model has reasonable design, simple structure and good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 A schematic diagram of the internal structure of a fine powder screening device provided in an embodiment of the present utility model;

[0024] Figure 2 A schematic structural diagram of a fine powder screening device provided in an embodiment of the present utility model;

[0025] icon:

[0026] 110. Ceramic mixing box; 120. First stirring assembly;

[0027] 210, ceramic drying oven; 220, second stirring assembly; 230, air blowing assembly; 240, discharge nozzle;

[0028] 310, air bag; 320, screening cylinder;

[0029] 400, suction machine;

[0030] 500. Ceramic recycling bin. DETAILED DESCRIPTION

[0031] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0032] Example

[0033] The embodiment of the present utility model provides a fine powder screening device to prevent metal elements from being mixed into the screening material due to rust or wear during the screening process, thereby reducing the purity of the material.

[0034] See also Figure 1 as well as Figure 2 The fine powder screening device provided by the embodiment of the utility model includes a mixing component, a drying component, a screening component and a recovery component;

[0035] In this embodiment, the mixing assembly includes a ceramic mixing box 110 and a first stirring assembly 120 at least partially located within the ceramic mixing box 110. The stirring paddle of the first stirring assembly 120 is a ceramic stirring paddle. The ceramic powder is stirred within the mixing assembly to form a slurry. The slurry sedimentation effect enables ceramic powders of different masses and sizes to be layered and deposited for separation and screening.

[0036] In this embodiment, the drying assembly includes a ceramic drying box 210, which is provided with a discharge piece. The ceramic powder is dried in the ceramic drying box 210 for the next step of screening.

[0037] In this embodiment, the screening assembly includes an airbag 310 and a screening drum 320 disposed inside the airbag 310. The airbag 310 is connected to a discharge piece. The ceramic powder passes through the discharge piece into the airbag 310 and is then screened by the screening drum 320 inside the airbag 310. As a result, large particles of ceramic powder remain in the airbag 310, and small particles of ceramic powder that meet the standards pass through the screening drum 320 for collection.

[0038] In this embodiment, the recovery assembly includes a connected suction machine 400 and a ceramic recovery box 500. The suction machine 400 is connected to the screening drum 320 through a suction pipe to suck the filtered ceramic powder into the ceramic recovery box 500.

[0039] Among them, the drying component, screening component and recovery component are arranged in sequence to form a working unit. There are two working units. The ceramic drying boxes 210 in the two working units are respectively connected to the top and bottom of the ceramic mixing box 110. In this embodiment, one of the two ceramic drying boxes 210 is connected to the ceramic mixing box 110 and close to the top of the ceramic mixing box 110, and the other is connected to the bottom of the ceramic mixing box 110 to dry and filter the upper slurry and the lower slurry respectively.

[0040] In this embodiment, the drying component also includes a second stirring component 220 that is at least partially located in the ceramic drying box 210. The stirring paddle of the second stirring component 220 is a ceramic stirring paddle. In this embodiment, the second stirring component 220 includes a stirring motor, a stirring shaft and a stirring paddle. The stirring motor is connected to the stirring paddle through the stirring shaft. The stirring shaft and the stirring paddle are both made of ceramic materials.

[0041] In this embodiment, a heating wire is provided on the inner wall of the ceramic drying box 210 to heat and dry the material inside.

[0042] In this embodiment, the discharge member is a discharge nozzle 240 to further dry the ceramic powder through spraying.

[0043] In this embodiment, the ceramic drying oven 210 is provided with an air blowing assembly 230 , and the air blowing assembly 230 is connected to a hot air source to further dry the ceramics in the ceramic drying oven 210 .

[0044] In this embodiment, the air blowing assembly 230 includes a plurality of air blowing pipes connected to the bottom of the ceramic drying box 210. The plurality of air blowing pipes act together on the ceramic drying box 210 to further enhance the drying effect on the ceramics.

[0045] In this embodiment, the screening drum 320 includes a drum body and a plurality of screening plates arranged in the drum body and spaced apart along the axial direction of the drum body to achieve further screening. In this embodiment, the mesh aperture size of the screening plate decreases successively along the axial direction of the screening drum 320. In this embodiment, the screening drum 320 is formed by connecting a filter drum and a filter plate, and the filter plate is connected to the end of the filter drum.

[0046] The following is a detailed description of the use of the fine powder screening device of the utility model:

[0047] During use, the ceramic powder is formed into a slurry in the ceramic mixing box 110, and then the slurry is separated into upper and lower layers through the sedimentation of the slurry in the ceramic mixing box 110. Ceramic particles of different sizes can be preliminarily separated from the separated upper and lower slurries, and further screened through two sets of working units. In any set of working units, the ceramic slurry is first in the ceramic drying box 210, and under the stirring action of the second stirring component 220, the heating tube and the blowing component 230 in the ceramic drying box 210 are used to dry the ceramic slurry. After drying, the ceramic powder is further dried by the spraying action of the discharge nozzle 240 through the discharge nozzle 240, and the ceramic powder is sprayed into the air bag 310. The suction machine 400 sucks the ceramic powder in the air bag 310 so that the ceramic powder passes through the screening net and enters the ceramic recovery box 500 to complete the screening.

[0048] The embodiments of the present invention have at least the following advantages:

[0049] (1) The utility model is made of ceramic material throughout to prevent metal elements from being mixed into the screening material due to rust or wear, which would reduce the purity of the material.

[0050] (2) The utility model forms a slurry by first forming ceramic powder in a ceramic mixing box, and then the slurry is deposited in the ceramic mixing box to separate the slurry into upper and lower layers. Ceramic particles of different sizes can be preliminarily separated from the separated upper and lower slurries, and further screening is performed through two sets of working units.

[0051] (3) The utility model has reasonable design, simple structure and good practicality.

[0052] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A fine powder screening device, characterized in that: include: A mixing assembly comprising a ceramic mixing box and a first stirring assembly at least partially located within the ceramic mixing box, wherein a stirring paddle of the first stirring assembly is a ceramic stirring paddle; A drying assembly, comprising a ceramic drying oven, wherein the ceramic drying oven is provided with a discharge member; A screening assembly, comprising an airbag and a screening cylinder disposed inside the airbag, wherein the airbag is connected to the discharge member; A recovery assembly, comprising a suction machine and a ceramic recovery box connected to each other, wherein the suction machine is connected to the screening drum via a suction pipe; The drying component, the screening component and the recovery component are sequentially arranged to form a working unit. There are two working units, and the ceramic drying boxes in the two working units are respectively connected to the top and bottom of the ceramic mixing box.

2. The fine powder screening device according to claim 1, characterized in that: The drying assembly further includes a second stirring assembly at least partially located in the ceramic drying box, and the stirring paddle of the second stirring assembly is a ceramic stirring paddle.

3. The fine powder screening device according to claim 1, characterized in that: The inner wall of the ceramic drying box is provided with a heating wire.

4. The fine powder screening device according to any one of claims 1 to 3, characterized in that: The discharging part is a discharging nozzle.

5. The fine powder screening device according to any one of claims 1 to 3, characterized in that: The ceramic drying box is provided with an air blowing component.

6. The fine powder screening device according to claim 5, characterized in that: The air blowing assembly includes a plurality of air blowing pipes connected to the bottom of the ceramic drying box.

7. The fine powder screening device according to any one of claims 1 to 3, characterized in that: The screening cylinder comprises a cylinder body and multiple layers of screening plates arranged in the cylinder body and spaced apart along the axial direction of the cylinder body.

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