A filtering device for an upward suction aluminum liquid pump

Abstract

The present invention discloses a filtering device for an upward suction aluminum liquid pump, which includes a filtering cylinder and a fixed wedge; the filtering cylinder is installed above the aluminum liquid suction port of the upward suction aluminum liquid pump, and its lower port is tightly attached to the upper end surface of the base of the upward suction aluminum liquid pump, and a fixed wedge is inserted into its side wall or / and top to fix the filtering cylinder above the base of the upward suction aluminum liquid pump; the filtering cylinder can completely cover the aluminum liquid suction port of the upward suction aluminum liquid pump, and a through hole is opened on the lower side wall of the filtering cylinder. When the device of the present invention is working, aluminum liquid flows from the outside of the filtering cylinder through the through hole to the hollow inner cavity of the cylinder, and then enters the aluminum liquid suction port from the inner cavity to be pumped out. In this process, impurities in the aluminum liquid are intercepted outside the filtering cylinder, and while obtaining clean aluminum liquid, the impact and friction of impurities on the rotor of the aluminum liquid pump are reduced, thereby reducing the failure rate of the aluminum liquid pump.

Description

Technical Field

[0001] The invention belongs to the technical field of molten aluminum liquid processing equipment, in particular to a filtering device of an upward suction aluminum liquid pump, which is used for filtering the aluminum liquid during the pumping process. Background Art

[0002] In the aluminum processing industry, the application of aluminum liquid pumps is becoming increasingly popular. There are usually two uses for aluminum liquid pumps. One is to circulate the aluminum liquid in the furnace through pumping, increase the melting speed of aluminum, and thus increase production capacity. At the same time, if a vortex well is used, the remelting recovery rate of industrial waste aluminum can be greatly improved. The other use is to transport aluminum liquid, that is, to transport molten aluminum liquid from one place to another.

[0003] The aluminum liquid pump is usually composed of a motor, a motor seat, a base, a supporting column, a rotating rod, and a rotor. The motor drives the rotor to rotate through the rotating rod. The suction force generated draws the aluminum liquid into the inner cavity of the base from the upper suction port or the lower suction port of the base, and then flows out from the outlet on the side of the base.

[0004] Based on the direction in which the aluminum liquid is sucked into the base, the aluminum liquid pump can be divided into upward suction type and downward suction type. The upward suction type means that the suction port is opened on the upper end surface of the base (see Figure 1 The down-draft type is opened on the lower end face of the base (see Figure 2 shown).

[0005] In application, in order to obtain clean aluminum liquid, or to prevent granular inclusions in aluminum liquid from being sucked in and damaging the rotor, a filter device needs to be installed at the suction port. Since the suction port of the down-suction pump is at the lower end surface of the base, it is more convenient to install the filter device. Therefore, the filter device is currently installed below the down-suction pump (see Figure 3 However, when the depth of the aluminum liquid is insufficient, the filtering device cannot be installed due to insufficient space below, which limits its application. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a filtering device for an up-suction aluminum liquid pump, which is installed on the upper end surface of the base of the aluminum liquid pump. While obtaining clean aluminum liquid, it can reduce the impact and friction of impurities on the aluminum liquid pump rotor and reduce the failure rate of the aluminum liquid pump.

[0007] The present invention solves the above technical problems with the following technical solutions:

[0008] The present invention discloses a filtering device for an upward suction type aluminum liquid pump, the filtering device comprising a filtering cylinder and a fixed wedge; the filtering cylinder is installed above the aluminum liquid suction port of the upward suction type aluminum liquid pump, the lower port thereof is tightly attached to the upper end surface of the base of the upward suction type aluminum liquid pump, the side wall and / or the top thereof are inserted with the fixed wedge to fix the filtering cylinder above the base of the upward suction type aluminum liquid pump; the filtering cylinder can completely cover the aluminum liquid suction port of the upward suction type aluminum liquid pump, and a through hole is opened on the lower side wall of the filtering cylinder.

[0009] The filtering device of the upward suction type aluminum liquid pump of the present invention, the filtering cylinder is a hollow cylinder with openings at both ends.

[0010] In the filtering device of the upward suction type aluminum liquid pump of the present invention, the side wall thickness of the filtering cylinder is 5-100 mm.

[0011] In the filtering device of the upward suction type aluminum liquid pump of the present invention, the fixed wedge is inserted into the gap between the outer wall of the filter cylinder and the supporting column to fix the filter cylinder.

[0012] In the filtering device of the upward suction type aluminum liquid pump of the present invention, the fixed wedge is inserted into the gap between the upper port of the filter cylinder and the motor seat to fix the filter cylinder.

[0013] In the filtering device of the upward suction type aluminum liquid pump of the present invention, the upper port of the filtering cylinder is higher than the aluminum liquid level; and the opening height line of the through hole of the side wall of the filtering cylinder is lower than the aluminum liquid level.

[0014] In the filtering device of the upward suction aluminum liquid pump of the present invention, the aperture of the through hole on the side wall of the filtering cylinder is 1-100 mm, and the total opening area of ​​the through hole is 1-10 times the area of ​​the aluminum liquid suction port of the aluminum liquid pump.

[0015] In the filtering device of the upward suction type aluminum liquid pump of the present invention, the opening height line of the through hole on the side wall of the filtering cylinder is not higher than the aluminum liquid level.

[0016] The filter device of the upward suction type aluminum liquid pump of the present invention, the filter cylinder and the fixed wedge block are made of graphite or refractory material.

[0017] Compared with the prior art, the filtering device of the upward suction aluminum liquid pump of the present invention has the following advantages:

[0018] 1) Impurities in the aluminum liquid can be intercepted on the outer wall of the cylinder to obtain clean aluminum liquid with good filtering effect;

[0019] 2) It can reduce the impact and friction of impurities on the rotor of the aluminum liquid pump, thereby reducing the failure rate of the aluminum liquid pump;

[0020] 3) The device of the present invention does not affect the installation and use of the aluminum liquid pump and is more flexible in application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1It is a schematic diagram of the structure of a traditional up-suction aluminum liquid pump.

[0022] Figure 2 It is a schematic diagram of the structure of a traditional down-suction aluminum liquid pump.

[0023] Figure 3 This is a schematic diagram of a traditional down-suction aluminum liquid pump with a down-suction filter installed.

[0024] Figure 4 It is a schematic diagram of the installation of the filtering device of the upward suction type aluminum liquid pump of the present invention.

[0025] Figure 5 It is a schematic diagram of inserting the fixed wedge into the gap between the outer wall of the filter cylinder and the supporting column.

[0026] Figure 6 It is a schematic diagram of inserting the fixing wedge into the gap between the upper port of the filter cylinder and the motor seat.

[0027] Figure 7 It is a schematic diagram of a fixed wedge block used in the filtering device of the upward suction type aluminum liquid pump of the present invention.

[0028] Figure 8 It is a schematic diagram of a filter cylinder used in the filter device of the upward suction type aluminum liquid pump of the present invention.

[0029] In the figure: 1-upper port of filter cylinder, 2-lower port of filter cylinder, 3-side wall of filter cylinder, 4-through hole, 5-opening height line, 6-hollow inner cavity of filter cylinder, 7-filter cylinder, 8-motor, 9-motor seat of aluminum liquid pump, 10-support column, 11-rotating rod, 12-rotor, 13-base of aluminum liquid pump, 14-aluminum liquid outlet, 15 upper end surface of base, 16-aluminum liquid level, 17-fixed wedge, 18-aluminum liquid suction port, 19-aluminum liquid flow path, 20-first gap, 21-aluminum liquid, 22-particulate impurities, 23-fine floating impurities, 24-second gap. DETAILED DESCRIPTION

[0030] The technical solution of the present invention is further described below in conjunction with the accompanying drawings.

[0031] like Figure 1 As shown, the upward suction port of the traditional upward suction aluminum liquid pump is located at the upper end of the base.

[0032] like Figure 2 As shown, the down-suction suction port of the conventional down-suction aluminum liquid pump is located at the lower end of the base.

[0033] like Figure 3 As shown, it is a schematic diagram of installing a down-suction filter below a traditional down-suction aluminum liquid pump.

[0034] like Figure 4As shown, the filtering device of the upward suction aluminum liquid pump of the present invention comprises a filter cylinder 7 and a fixed wedge 17; the filter cylinder 7 is installed above the aluminum liquid suction port 18 of the upward suction aluminum liquid pump, the lower port 2 of the filter cylinder is tightly attached to the upper end surface 15 of the base of the upward suction aluminum liquid pump, and the side wall and / or the top thereof are inserted with the fixed wedge 17 to fix the filter cylinder 7 above the base 13 of the upward suction aluminum liquid pump; the filter cylinder 7 can completely cover the aluminum liquid suction port 18 of the upward suction aluminum liquid pump, and the side wall 3 of the filter cylinder is provided with a through hole 4; the lower part of the upward suction aluminum liquid pump is immersed in the aluminum liquid 21.

[0035] like Figure 8 As shown, the filter cylinder 7 is a hollow cylinder with openings at both ends, and the side wall thickness is 5-100mm; the aperture of the through hole 4 of the side wall 3 of the filter cylinder is 1-100mm, and the total opening area of ​​the through hole 4 is 1-10 times the area of ​​the aluminum liquid suction port 18 of the aluminum liquid pump; the opening height line 5 of the through hole 4 is lower than the aluminum liquid level 16; the upper port 1 of the filter cylinder is higher than the aluminum liquid level (such as Figure 4 shown).

[0036] like Figure 5 As shown, the fixing wedge 17 is inserted into the second gap 24 between the upper port 1 of the filter cylinder and the motor seat 9 of the aluminum liquid pump, so as to fix the filter cylinder 7 on the aluminum liquid pump base 13.

[0037] like Figure 6 As shown, the fixing wedge 17 is inserted into the first gap 20 between the filter cylinder side wall 3 and the three supporting columns 10, and each supporting column is divided into two upper and lower fixing points, so as to fix the filter cylinder 7 on the aluminum liquid pump base 13.

[0038] The present invention can also simultaneously insert the fixing wedge 17 into the first gap 20 between the filter cylinder side wall 3 and the three supporting columns 10 and the second gap 24 between the filter cylinder upper port 1 and the aluminum liquid pump motor base 9 to fix the filter cylinder 7.

[0039] like Figure 7 As shown, the fixed wedge 17 is thick at one end and thin at the other end. When used, two fixed wedges are used at each fixed point, and are inserted in a state of up and down offset and tightly fitting, thereby achieving the function of fixing the filter cylinder 7. At the same time, refractory mud can be applied to the gap around the fixed wedge to strengthen the fixation.

[0040] The filter cylinder 7 and the fixed wedge 17 of the present invention are both made of graphite or refractory materials.

[0041] When installing the device of the present invention, the filter cylinder 7 is installed directly above the aluminum liquid suction port 18, the lower port 2 of the filter cylinder is close to the upper end surface 15 of the base, the rotating rod 11 connected to the motor 8 passes through the hollow inner cavity 6 of the filter cylinder, the upper port 1 of the filter cylinder is higher than the aluminum liquid level 16, and the opening height line 5 of the through hole 4 is lower than the aluminum liquid level 16.

[0042] When the upward suction aluminum liquid pump is working, the motor 8 drives the rotor 12 to rotate through the rotating rod 11 to form suction, and the aluminum liquid 21 outside the filter cylinder 7 flows through the through hole 4 to reach the hollow inner cavity 6 of the filter cylinder, enters the aluminum liquid suction port 18, and is pumped out through the aluminum liquid outlet 14. The aluminum liquid flow path 19 is as shown in Figure 4 In this process, the particle impurities 22 larger than the through hole 4 are intercepted outside the filter cylinder 7. At the same time, because the upper port 1 of the filter cylinder is higher than the aluminum liquid level 16, the opening height line 5 of the through hole 4 is lower than the aluminum liquid level 16, the fine floating impurities 23 floating on the aluminum liquid level 16 cannot enter the cylinder cavity 6 from the through hole 4 and the upper port 1 of the filter cylinder, thereby achieving the effect of cleaning the aluminum liquid.

Claims

1. A filtering device for an up-suction aluminum liquid pump, characterized in that: The filter device comprises a filter cylinder and a fixed wedge; the filter cylinder is installed above the aluminum liquid suction port of the upper suction aluminum liquid pump, the upper suction aluminum liquid pump comprises a motor, a base, a rotating rod and a rotor, the rotating rod is connected to the motor, and the motor drives the rotor to rotate through the rotating rod, the lower port of the filter cylinder is tightly attached to the upper end surface of the base of the upper suction aluminum liquid pump, and the fixed wedge is inserted into the side wall or / and the top to fix the filter cylinder above the base of the upper suction aluminum liquid pump; the filter cylinder can completely cover the aluminum liquid suction port of the upper suction aluminum liquid pump, and the lower side wall of the filter cylinder is provided with a through hole; the filter cylinder is a hollow cylinder with openings at both ends, and the rotating rod connected to the motor passes through the hollow inner cavity of the filter cylinder; the upper port of the filter cylinder is higher than the aluminum liquid level; the opening height line of the through hole of the side wall of the filter cylinder is lower than the aluminum liquid level; the aperture of the through hole of the side wall of the filter cylinder is 1-100 mm, the total opening area of ​​the through holes is 1-10 times the area of ​​the aluminum liquid suction port of the aluminum liquid pump.

2. The filtering device of the upward suction aluminum liquid pump according to claim 1 is characterized in that: The side wall thickness of the filter cylinder is 5-100 mm.

3. The filtering device of the upward suction aluminum liquid pump according to claim 1 or 2, characterized in that: The fixing wedge is inserted into the gap between the outer wall of the filter cylinder and the supporting column to fix the filter cylinder.

4. The filtering device of the upward suction aluminum liquid pump according to claim 1 or 2, characterized in that: The fixing wedge is inserted into the gap between the upper port of the filter cylinder and the motor seat to fix the filter cylinder.

5. The filtering device of the upward suction aluminum liquid pump according to claim 1 or 2, characterized in that: The filter cylinder and the fixed wedge are made of graphite or refractory material.

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