Screening device for screening aluminum oxide powder

Abstract

The screening device for screening the aluminum oxide powder comprises a shell, a feeding port is formed in the top end of the shell, a multi-stage screening assembly is arranged in the shell, a plurality of collecting assemblies are fixedly connected to one side of the shell, a spiral feeding assembly is arranged on one sides of the collecting assemblies in a penetrating mode, and the spiral feeding assembly is connected with the collecting assemblies in a penetrating mode. A blocking component for separating the spiral feeding assembly and the collecting assembly is inserted into the collecting assembly in a penetrating mode, a flow guide shell is arranged on one side of the top end of the spiral feeding assembly, the flow guide shell is inserted into the feeding port in a penetrating mode, and the blocking component is matched with the spiral feeding assembly, so that aluminum oxide powder is automatically fed and screened for multiple times; according to the aluminum oxide powder screening device, the completely screened aluminum oxide powder with different diameters is separated from the collecting assembly and the spiral feeding assembly under the action of the blocking component, the situation that the screened aluminum oxide powder is screened again is avoided, the screening efficiency is improved compared with the mode that only one-time screening and automatic multiple-time screening are conducted, and meanwhile the workload of operators is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to alumina powder screening technical field especially, a kind of screening device for alumina powder screening. BACKGROUND

[0002] The screening device for alumina powder screening is a specially designed mechanical equipment, and its main function is to classify the particle size of alumina powder, remove impurities or homogenize treatment.

[0003] In the patent with the publication number CN220574010U, a multi-layer alumina powder screening device is disclosed, which includes a box body. A first discharge port is formed on the right side of the box body. A feeding port is formed on the upper surface of the box body. A control panel is fixedly connected to the front of the box body. The device allows the alumina powder raw materials to fall on the high part of the alumina powder screen by the feeding port, increasing the flow time of the alumina powder raw materials on the alumina powder screen. The falling alumina powder can flow to the top of the alumina powder screen below with the guide plate, ensuring that different particles of alumina powder can be separated. The vibration motor and transmission rod are used to transmit the vibration force to the alumina powder screen, allowing the alumina powder screen to vibrate. Although the vibration makes the alumina powder active, improving the screening effect of the alumina powder screen on the alumina powder, the vibration of the alumina powder screen causes the alumina powder to jump, accelerating the approach of the alumina powder to the flow guide plate, making it difficult for the alumina powder screen to fully screen the alumina powder. Therefore, the staff needs to screen the screened alumina powder multiple times to fully screen the alumina powder, increasing the workload of the staff.

[0004] Therefore, it is necessary to provide a new screening device for alumina powder screening to solve the above technical problems. UTILITY MODEL CONTENT

[0005] To solve the above technical problems, the utility model provides a screening device for alumina powder screening.

[0006] The screening device for alumina powder screening provided by the utility model includes an outer shell, a feeding port is formed on the top end of the outer shell, a multi-stage screening assembly is arranged inside the outer shell, a plurality of collection assemblies are fixedly connected to one side of the outer shell, a spiral feeding assembly is inserted into one side of the plurality of collection assemblies, a flow guide shell is formed on one side of the top end of the spiral feeding assembly, and the flow guide shell is inserted into the feeding port.

[0007] Preferably, the multi-stage screening assembly includes a plurality of alumina powder screens with different hole diameters, the plurality of alumina powder screens are arranged on the inner side wall of the outer shell from high to low in size order from large to small, an electromagnetic vibrator is embedded outside each alumina powder screen, and a flow guide plate is inserted between every two alumina powder screens.

[0008] Preferably, the collecting assembly comprises a collecting bin fixedly connected to the outer side wall of the shell, and a sealing plate detachably connected to the bottom wall of the collecting bin; the collecting bin is obliquely arranged adjacent to one side wall of the shell, and the top end of the sealing plate is attached with a pressure sensor.

[0009] Preferably, the spiral feeding assembly comprises a mounting shell, one end of which is inserted into the bottommost collecting bin, and the other end is inserted into the flow guide shell; a rotating rod is inserted into the mounting shell; one end of the rotating rod is rotatably connected to the bottom wall of the bottommost collecting bin, and the other end of the rotating rod is fixedly connected with a driving member; the driving member is detachably connected to the top wall of the mounting shell.

[0010] Preferably, the blocking member comprises a baffle inserted into the collecting bin; a sawtooth groove is formed in the side wall of the baffle; a driving motor two is detachably connected to the side wall of the shell; the output end of the driving motor two is fixedly connected with a gear; and the gear is engaged with the sawtooth groove.

[0011] Preferably, the driving member comprises a driving motor one, which is detachably connected to the top wall of the mounting shell, and the output end of the driving motor one is detachably connected to the top end of the rotating rod.

[0012] Preferably, the flow guide plate is obliquely arranged, and the oblique direction of the flow guide plate is opposite to the oblique direction of the alumina powder screen.

[0013] Preferably, the flow guide shell is obliquely arranged, and the end of the flow guide shell away from the feeding port is higher than the feeding port.

[0014] Compared with the related art, the screening device for screening alumina powder provided by the present application has the following advantages:

[0015] The screening device for screening alumina powder provided by the present application can automatically perform multiple feeding and screening of the alumina powder through the cooperation of the blocking member and the spiral feeding assembly; the completely screened alumina powder of different diameters is isolated from the collecting assembly and the spiral feeding assembly under the action of the blocking member, so that the screened alumina powder is not screened again; compared with only one screening, the automatic multiple screening improves the screening efficiency and makes the screening of the alumina powder more sufficient, while saving the workload of the operator. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The overall structure of the screening device for screening alumina powder provided by the present application is shown in the figure;

[0017] Figure 2 The top view of the screening device for screening alumina powder provided by the present application is shown in the figure;

[0018] Figure 3 As shown in the cross-sectional structure schematic view at A-A; Figure 2 As shown in the cross-sectional structure schematic view at A-A;

[0019] Figure 4 As shown in the cross-sectional structure schematic view at A-A; Figure 1 As shown in the enlarged structure schematic view at a.

[0020] The figure label: 1, the shell; 2, feed inlet; 3, multistage screening assembly; 31, alumina powder screen; 32, electromagnetic vibrator; 33, guide plate; 4, collection assembly; 41, collection bin; 42, sealing plate; 43, pressure sensor; 44, plugging component; 441, baffle; 442, sawtooth groove; 443, driving motor two; 444, gear; 5, spiral feeding assembly; 51, mounting shell; 52, rotating rod; 53, driving part; 54, spiral blade; 6, flow guide shell. DETAILED DESCRIPTION

[0021] The utility model will be further described below in combination with the drawings and embodiments.

[0022] Please refer to Figure 1 — Figure 4 Among them, Figure 1 It is the overall structure schematic view of screening device for alumina powder screening provided by the utility model; Figure 2 It is the top view of screening device for alumina powder screening provided by the utility model; Figure 3 As shown in the cross-sectional structure schematic view at A-A; Figure 2 As shown in the cross-sectional structure schematic view at A-A; Figure 4 As shown in the cross-sectional structure schematic view at A-A; Figure 1 As shown in the enlarged structure schematic view at a.

[0023] In the specific implementation process, a kind of screening device for alumina powder screening, structure as shown in Figure 1 — Figure 4 It includes: shell 1, shell 1 top end is equipped with feed inlet 2, shell 1 is equipped with multistage screening assembly 3 in, shell 1 side is welded with multiple collection assemblies 4, multiple collection assemblies 4 side is inserted with spiral feeding assembly 5, spiral feeding assembly 5 top end side is equipped with flow guide shell 6, flow guide shell 6 is inserted into feed inlet 2.

[0024] It should be noted that when the alumina powder is sieved, first, the alumina powder is poured into the inlet 2, and then the multi-stage sieving assembly 3 is started, so that the multi-stage sieving assembly 3 sieves the alumina powder according to the particle diameter of the alumina powder, and the sieved alumina powder enters the collection bin 41. However, it is difficult to completely sieve the alumina powder by one time, and the large-particle alumina powder may still be mixed with small-particle alumina powder. At this time, the screw feeding assembly 5 is started, and the medium-particle and large-particle alumina powder in the collection bin 41 is sent to the flow guide shell 6 through the screw feeding assembly 5. The flow guide shell 6 is inclined, and the end of the flow guide shell 6 away from the inlet 2 is higher than the inlet 2. Under the action of gravity, the alumina powder enters the shell 1 again through the inlet 2, and is sieved again until completely sieved.

[0025] The multi-stage sieving assembly 3 includes a plurality of alumina powder screens 31 with different hole diameters. The plurality of alumina powder screens 31 are inclined from high to low on the inner side wall of the shell 1 according to the hole diameter. The plurality of alumina powder screens 31 are each nested with an electromagnetic vibrator 32, and the plurality of alumina powder screens 31 are each inserted with a flow guide plate 33. The flow guide plate 33 is inclined, and the inclination direction of the flow guide plate 33 is opposite to the inclination direction of the alumina powder screen 31.

[0026] It should be noted that the plurality of alumina powder screens 31 are each higher on the side adjacent to the inlet 2 than on the side adjacent to the collection assembly 4. Under the action of the electromagnetic vibrator 32, the plurality of alumina powder screens 31 vibrate and sieve the alumina powder, which not only improves the sieving efficiency, but also makes the alumina powder uniformly distributed on the surface of the alumina powder screen 31, further improving the sieving efficiency. After being sieved by the alumina powder screen 31, the alumina powder slides to the top end of the alumina powder screen 31 arranged in the next layer under the guidance of the flow guide plate 33.

[0027] The collection assembly 4 includes a collection bin 41 fixedly connected to the outer side wall of the shell 1. The bottom wall of the collection bin 41 is snap-connected with a sealing plate 42. The side wall of the collection bin 41 adjacent to the shell 1 is inclined. The top end of the sealing plate 42 is fitted with a pressure sensor 43. The collection bin 41 is inserted with a plugging member 44 for preventing the alumina powder from entering the screw feeding assembly 5. The plugging member 44 corresponds to the pressure sensor 43 one by one.

[0028] It should be noted that the side wall of the collection bin 41 is higher adjacent to one end of the shell 1 than adjacent to one end of the pressure sensor 43. After screening, the alumina powder enters the collection bin 41. Since the side wall of the collection bin 41 is inclined, the alumina powder is present on the pressure sensor 43 at this time. When the pressure sensor 43 senses that the pressure stops increasing, the screw feeding assembly 5 is started at this time. The alumina powder after screening except the bottom layer is transported again to the feed inlet 2 by the screw feeding assembly 5 to be screened again. Until the pressure received by the pressure sensor 43 is the same for two or more times in succession, it is indicated that the alumina powder of the particle diameter collected by the collection bin 41 has been sufficiently screened at this time. At this time, the blocking member 44 is started to separate the collection bin 41 from the screw feeding assembly 5, so as to prevent the alumina powder from being sent again by the screw feeding assembly 5 to be screened. When all the blocking assemblies separate the collection bin 41 from the screw feeding assembly 5, it is indicated that the alumina powder has been sufficiently screened at this time. The worker can take out the alumina powder by disassembling the sealing plate 42.

[0029] The screw feeding assembly 5 comprises a mounting shell 51. One end of the mounting shell 51 penetrates into the bottommost collection bin 41. The top end of the mounting shell 51 penetrates into the flow guide shell 6. A rotating rod 52 is inserted into the mounting shell 51. One end of the rotating rod 52 is rotatably connected to the bottom wall of the bottommost collection bin 41. The top end of the rotating rod 52 is welded with a driving member 53. The driving member 53 is detachably connected to the top wall of the mounting shell 51.

[0030] It should be noted that the driving member 53 comprises a driving motor one. The driving motor one is bolted to the top wall of the mounting shell 51. The output end of the driving motor one is bolted to the top end of the rotating rod 52. Under the driving of the driving motor one, the rotating rod 52 drives the screw blade 54 to rotate. Under the combined action of gravity, friction and the mutual interaction force between the alumina powders, the screw blade 54 drives the alumina powder to rise. Specifically, the screw feeding assembly 5 can refer to the vertical screw feeder. The rotor speed of the driving motor one can be gradually reduced according to the screening times, so as to slow down the feeding speed of the alumina powder, and make the alumina powder screen 31 sufficiently screen the alumina powder.

[0031] The blocking member 44 comprises a baffle 441. The baffle 441 penetrates into the collection bin 41. The side wall of the baffle 441 is provided with a sawtooth groove 442. The side wall of the shell 1 is detachably connected with a driving motor two 443. The output end of the driving motor two 443 is fixedly connected with a gear 444. The gear 444 is engaged with the sawtooth groove 442.

[0032] It should be noted that when the pressure sensor 43 senses the same pressure at two or more times when the pressure stops increasing, a signal is transmitted to the control center (not shown in the figure), and the control center transmits a signal to the driving motor two 443, so that the driving motor two 443 drives the gear 444 to rotate, and the gear 444 drives the baffle 441 to descend through the sawtooth groove 442, so that the baffle 441 blocks the collection bin 41, and at this time, the alumina powder in the collection bin 41 can be collected.

[0033] The circuit and the control involved in the utility model are prior art, and too much repetition is not performed here.

[0034] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion using the contents of the utility model specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the utility model.

Claims

1. A screening device for screening of alumina powder, characterized in that, The utility model provides a multi -stage screening assembly (3) is set up in the shell (1), and the multi -stage screening assembly (3) is connected with the spiral feeding assembly (5) through the collection assembly (4), and the spiral feeding assembly (5) is connected with the flow guide shell (6) through the flow guide shell (6) and is connected with the feed inlet (2) through the flow guide shell (6).

2. The screening device for alumina powder screening according to claim 1, characterized in that, The multi -stage screening assembly (3) includes a plurality of alumina powder screen meshes (31) of different aperture sizes, a plurality of the alumina powder screen meshes (31) are sequentially arranged from high to low on the inner side wall of the shell (1) according to the aperture size, and a plurality of the alumina powder screen meshes (31) are each embedded with an electromagnetic vibrator (32).

3. The screening apparatus for alumina powder screening according to claim 1, wherein, The collection assembly (4) includes a collection bin (41) fixedly connected to the outer side wall of the shell (1), a sealing plate (42) detachably connected to the bottom wall of the collection bin (41), and the collection bin (41) is arranged obliquely adjacent to the side wall of the shell (1), and a pressure sensor (43) is attached to the top end of the sealing plate (42).

4. The screening apparatus for alumina powder screening according to claim 3, wherein, The spiral feeding assembly (5) includes a mounting shell (51) inserted into the bottommost collection bin (41) at one end, a flow guide shell (6) inserted into the mounting shell (51) at the top end, a rotating rod (52) inserted into the mounting shell (51), one end of the rotating rod (52) rotatably connected to the bottom wall of the bottommost collection bin (41), a driving member (53) fixedly connected to the top end of the rotating rod (52), and the driving member (53) detachably connected to the top wall of the mounting shell (51).

5. The screening apparatus for alumina powder screening according to claim 4, wherein, The sealing member (44) includes a baffle (441) inserted into the collection bin (41), a sawtooth groove (442) formed in the side wall of the baffle (441), a driving motor two (443) detachably connected to the side wall of the shell (1), a gear (444) fixedly connected to the output end of the driving motor two (443), and the gear (444) engaged with the sawtooth groove (442).

6. The screening apparatus for alumina powder screening according to claim 5, wherein, The driving member (53) includes a driving motor one detachably connected to the top wall of the mounting shell (51), and the output end of the driving motor one is detachably connected to the top end of the rotating rod (52).

7. The screening apparatus for alumina powder screening according to claim 2, wherein, The flow guide plate (33) is arranged obliquely, and the inclination direction of the flow guide plate (33) is opposite to the inclination direction of the alumina powder screen mesh (31).

8. The screening apparatus for alumina powder screening according to any one of claims 1 to 7, characterized in that, The flow guide shell (6) is arranged obliquely, and the end of the flow guide shell (6) away from the feed inlet (2) is higher than the feed inlet (2).

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