Molten aluminum degassing and impurity-removing filtering device

Abstract

The utility model relates to a molten aluminum degassing and impurity-removing filter device in the technical field of molten aluminum purification treatment, which comprises a launder and a stirring shaft, a filter screen plate is mounted in a crosspiece in a channel of the launder positioned at the downstream relative to the stirring shaft, a plurality of stirring blade plates are uniformly and annularly mounted on a shaft body of the stirring shaft, and the lower end of the stirring shaft is rotatably mounted at the bottom of the launder. When the stirring shaft rotates, the outer side plate edge of the stirring blade plate can correspondingly scrape the corresponding plate surface of the filter screen plate; according to the molten aluminum degassing and impurity-removing filtering device, stirring degassing is adopted, the cost is reduced, and the filtering net plate can be cleaned in the stirring process.

Description

TECHNICAL FIELD

[0001] The utility model relates to molten aluminum purification treatment technical field especially is related to a molten aluminum degassing and impurity removal filter device. BACKGROUND

[0002] It is known that the molten aluminum purification is mainly to remove hydrogen and impurities in it, and the residual hydrogen in the molten aluminum can cause the molten aluminum to be turbid and unstable, the surface quality of the cast aluminum part is poor, and has the pore defect, and the impurities in the molten aluminum can reduce the alloy performance and affect the casting process and post-processing; the Chinese invention patent with the announcement number CN106807902A discloses a kind of molten aluminum filter degassing equipment, respectively using vacuum degassing and filter plate filtration method carries out degassing and impurity removal, but the defect of this prior art is that vacuum degassing equipment is complex, cost is high, and filter plate filtration cannot clean the surface of plate, can be blocked due to impurity accumulation, cause flow reduction, affect pouring. UTILITARY MODEL

[0003] In order to overcome the deficiency in the background art, solve the existing technical problems, the utility model discloses a kind of molten aluminum degassing and impurity removal filter device, adopt stirring degassing to reduce cost, and can clean filter screen plate in the process of stirring.

[0004] To achieve the above object, the utility model adopts the following technical scheme:

[0005] A kind of molten aluminum degassing and impurity removal filter device, containing flow tank and stirring shaft, the horizontal stop is installed with filter screen plate in the flow tank channel downstream relative to stirring shaft, the shaft body of the stirring shaft is evenly ringed with multiple stirring blade plates, the lower end of the stirring shaft is rotatably installed in the flow tank tank bottom, so that the outside plate edge of stirring blade plate can correspondingly scrape the corresponding plate surface of filter screen plate when stirring shaft rotates.

[0006] Further, the filter screen plate is arranged as an arc plate with the stirring shaft as the arc center line, and the two sides of the filter screen plate are correspondingly embedded and fixed to the two inner tank walls of the flow tank.

[0007] Further, the upper end of the stirring shaft is fixed with a screw handle.

[0008] Further, the upper end of the stirring shaft is rotatably fitted with a limiting shaft sleeve, the outer sleeve wall of the limiting shaft sleeve is fixed to the top surface of the flow tank tank wall through a support rod, a stirring motor is installed on the upper end surface of the limiting shaft sleeve, and the output shaft of the stirring motor is correspondingly connected with the stirring shaft.

[0009] Further, the inner tank bottom of the flow tank is provided with a groove, and a slag collecting groove body is detachably inserted in the groove.

[0010] Further, the stirring blade plate is provided as a mesh plate with a height adapted to the depth of the flow channel, and the stirring blade plate is provided with four, and the outer side plate surface of the stirring blade plate can rotate and cut into the flow channel wall, so that the distance between the outer side plate edges of two adjacent stirring blade plates is equal to the width of the flow channel.

[0011] Further, the stirring blade plate and the filter mesh plate are both provided as 50-mesh ceramic mesh plates.

[0012] Further, the outer side plate edge of the stirring blade plate is provided with a detachable scraping strip.

[0013] Further, the filter mesh plate is provided as a double-layer filter mesh plate.

[0014] Further, the filter device is provided with two along the flow direction of the flow channel.

[0015] Due to the adoption of the technical scheme as described above, the present application has the following beneficial effects:

[0016] The molten aluminum degassing and impurity removing filter device disclosed by the present application filters the molten aluminum by the filter mesh plate, and stirs and degasses the molten aluminum flowing through the flow channel by rotating the stirring shaft and the stirring blade plate, so that the device is simple to operate and low in cost, and the rotating stirring blade plate can scrape the filter mesh plate to prevent the impurities from accumulating on the filter mesh plate and affecting the flow rate of the molten aluminum. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a top view structural schematic diagram of the present application;

[0018] Figure 2 is Figure 1 A-A sectional view structural schematic diagram of the present application.

[0019] In the figure: 1, flow channel; 2, scraping strip; 3, slag collecting groove body; 4, stirring shaft; 5, screw handle; 6, stirring blade plate; 7, filter mesh plate. DETAILED DESCRIPTION

[0020] The technical scheme of the present application will be described below in combination with the drawings of the embodiments of the present application, and in the description, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right" and the like only corresponds to the drawings of the present application, and is for the convenience of describing the present application, and does not indicate or imply that the indicated device or element must have a particular orientation: Example one:

[0021] In combination with the drawings of the embodiments of the present application, Figures 1-2The aluminum liquid degassing and impurity removing filter device comprises a flow tank 1 and a stirring shaft 4, a filter screen plate 7 is installed in the flow tank 1 channel downstream of the stirring shaft 4, impurities in the aluminum liquid flowing through the flow tank 1 are filtered through the filter screen plate 7, the filter screen plate 7 is provided as a double-layer structure, the filtering effect is increased while the structural strength is ensured, the filter screen plate 7 is provided as an arc-shaped plate with the stirring shaft 4 as the arc center line, and the two sides of the filter screen plate 7 are correspondingly embedded and fixed to the two inner tank walls of the flow tank 1, the contact area with the aluminum liquid is increased, and the installation is firm, a plurality of stirring blade plates 6 are uniformly and annularly arranged on the shaft body of the stirring shaft 4, generally two stirring blade plates 6 are arranged, the stirring and degassing effects can be achieved without too much effort, the lower end of the stirring shaft 4 is rotatably installed on the tank bottom of the flow tank 1, so that the outer side plate edge of the stirring blade plate 6 can correspondingly scrape the corresponding plate surface of the filter screen plate 7 when the stirring shaft 4 rotates, the filter screen plate 7 is scraped by the rotating stirring blade plate 6, so that the impurities are prevented from accumulating on the filter screen plate 7 and affecting the flow rate of the aluminum liquid, the upper end of the stirring shaft 4 is fixed with a screw handle 5 according to needs, manual force is convenient for screwing, in addition, the outer side plate edge of the stirring blade plate 6 is provided with a detachable scraping strip 2, which is convenient for replacement.

[0022] The aluminum liquid degassing and impurity removing filter device is implemented, when the aluminum liquid flows through the flow tank 1, the stirring shaft 4 is continuously rotated to stir and degas the aluminum liquid, and the rotating stirring blade plate 6 is scraped on the filter screen plate 7, so that the impurities are prevented from accumulating on the filter screen plate 7, the filter screen plate 7 can stably filter the impurities, and the aluminum liquid flow is not affected. Embodiment two:

[0023] The difference from the embodiment one is that the upper end of the stirring shaft 4 is rotatably sleeved with a limiting shaft sleeve, the outer sleeve wall of the limiting shaft sleeve is detachably fixed to the tank wall top surface of the flow tank 1 through a supporting rod, a stirring motor is installed on the upper end surface of the limiting shaft sleeve, the output shaft of the stirring motor is correspondingly drivingly connected with the stirring shaft 4, the stirring shaft 4 is rotated by the stirring motor, the stirring speed is stable, and manpower is saved. Embodiment three:

[0024] On the basis of the embodiment, the inner groove bottom of the flow groove 1 is provided with a groove, a slag collecting groove body 3 is detachably inserted in the groove, the lower end of the stirring shaft 4 is rotatably installed in the central inner groove bottom of the slag collecting groove body 3, a plug sleeve is integrally connected in the slag collecting groove body 3, the lower end of the stirring shaft 4 is rotatably inserted in the plug sleeve, a step or a snap ring is arranged to axially position the stirring shaft 4 and the plug sleeve, the impurities blocked and scraped by the filter screen 7 can be collected in the slag collecting groove body 3, when the aluminum liquid stops flowing, the stirring shaft 4 can be lifted to drive the slag collecting groove body 3 to be cleaned; of course, two filter devices can be arranged along the flow direction of the flow groove 1, even if the aluminum liquid continuously flows, the slag collecting groove bodies 3 can be alternately lifted for impurity cleaning without affecting the exhaust and filtration; according to the need, the stirring blade plate 6 is a screen plate with a height suitable for the groove depth of the flow groove 1, four stirring blade plates 6 are arranged, the outer side plate surface of the stirring blade plate 6 can be rotatably cut into the inner groove wall of the flow groove 1, so that the distance between the outer side plate edges of the adjacent two stirring blade plates 6 is equal to the groove width of the flow groove 1, so that the aluminum liquid always passes through the stirring blade plate for filtering no matter what angle it is rotated to, the filtering effect is increased, and the inner groove wall of the flow groove 1 can limit the rotation, and the stirring blade plate with the screen purpose can also increase the turbulent stirring and exhaust effect; in addition, the stirring blade plate 6 and the filter screen 7 are both 50-mesh ceramic screens.

[0025] The parts not described in detail in the utility model are prior art, and it is obvious for those skilled in the art that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model; therefore, no matter from which point of view, the above embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model, and any reference signs in the claims should not be regarded as limiting the content of the involved claims.

Claims

1. A device for filtering and degassing of liquid aluminium, characterised in that it comprises: The utility model provides a filter device, including flow groove (1) and stirring shaft (4), the filter screen plate (7) is installed with the crossbar in the flow groove (1) channel downstream relative to stirring shaft (4), the shaft body of stirring shaft (4) is evenly ringed with multiple stirring blade plates (6), the lower end of stirring shaft (4) is rotatably installed in the flow groove (1) tank bottom, so that the outside plate edge of stirring blade plate (6) can correspondingly scrape the corresponding board surface of filter screen plate (7) when stirring shaft (4) rotates.

2. The metal-melt degassing and filtering apparatus according to claim 1, characterized in that: The filter screen plate (7) is arranged as an arc plate with stirring shaft (4) as the arc center line, and the two sides of the filter screen plate (7) are correspondingly embedded and fixed to the two inner groove walls of the flow groove (1).

3. The metal-melt degassing and filtering apparatus as claimed in claim 1, wherein: The upper end of the stirring shaft (4) is fixed with a screw handle (5).

4. The metal-melt degassing and filtering apparatus as claimed in claim 1, wherein: The upper end of the stirring shaft (4) is rotatably sleeved with a limiting shaft sleeve, the outer sleeve wall of the limiting shaft sleeve is fixed to the groove wall top surface of the flow groove (1) through a support rod, a stirring motor is installed on the upper end surface of the limiting shaft sleeve, and the output shaft of the stirring motor is correspondingly connected in transmission with the stirring shaft (4).

5. The metal-melt degassing and filtering apparatus as claimed in claim 1, wherein: The inner groove bottom of the flow groove (1) is provided with a groove, a slag collecting groove body (3) is detachably inserted into the groove, and the lower end of the stirring shaft (4) is rotatably installed in the inner groove bottom center of the slag collecting groove body (3).

6. The filter apparatus according to claim 1, wherein: The stirring blade plate (6) is arranged as a mesh plate with a height adapted to the groove depth of the flow groove (1), the stirring blade plate (6) is provided with four, the outside plate surface of the stirring blade plate (6) can be rotatably cut into the inner groove wall of the flow groove (1), so that the distance between the outside plate edges of the adjacent two stirring blade plates (6) is equal to the groove width of the flow groove (1).

7. The metal-melt degassing and filtering apparatus as claimed in claim 6, wherein: The stirring blade plate (6) and the filter screen plate (7) are both arranged as 50-mesh ceramic mesh plates.

8. The metal-melt degassing and filtering apparatus as claimed in claim 1, wherein: The outside plate edge of the stirring blade plate (6) is provided with a detachable scraping strip (2).

9. The metal-melt degassing and filtering apparatus as claimed in claim 1, wherein: The filter screen plate (7) is arranged as a double-layer structure.

10. The filter apparatus of claim 1, wherein: The filter device is provided with two along the flow direction of the flow groove (1).

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