Pneumatic stirring arrangement structure of disc filter

Abstract

The utility model discloses a pneumatic stirring arrangement structure of a disc filter, and relates to the technical field of mineral separation auxiliary equipment. The pneumatic stirring arrangement structure of the disc filter comprises a tank body, a rotating shaft and filter discs, a breather pipe is arranged between two side walls of the tank body, an extension branch pipe is fixedly arranged on the breather pipe and located between two adjacent filter discs, the tail end of the extension branch pipe is arranged to be a wedge-shaped section seal, a plurality of circular exhaust holes are formed in the wedge-shaped section seal, and the rotating shaft is arranged in the tank body. A plurality of first crescent-shaped exhaust holes are formed in the side walls of the extension branch pipes, and a plurality of second crescent-shaped exhaust holes are formed in the top of the ventilation pipe; gas output from the extension branch pipe is matched with the inner wall of the arc-shaped tank body, so that liquid in the tank body circularly flows, the iron powder, the ore pulp and the water are uniformly stirred, and the problem of non-uniform stirring is avoided; the breather pipe is fixedly arranged on the two side walls of the tank body, so that the problems of water leakage and mine leakage caused by serious abrasion during rotation between the breather pipe and the side walls of the tank body in the prior art are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of mineral processing auxiliary equipment, in particular to a pneumatic stirring arrangement structure of a disc filter. Background Art

[0002] The mechanical stirring part of the external filter disc vacuum filter uses a mechanical stirrer to evenly stir the iron powder, ore pulp and water. The mechanical stirrer is rotatably arranged inside the tank body and is located on the lower side of the filter disc. The mechanical stirrer includes a stirring shaft, a bearing seat, a water-sealed sealing device and stirring blades. The two side walls of the tank body are embedded with bearing seats. A stirring shaft is rotatably arranged between the two bearing seats and through the inner cavity of the tank body. The stirring shaft is fixed with stirring blades for mixing the iron powder, ore pulp and water, and a water-sealed sealing device is provided on the inner side of the two bearing seats.

[0003] The existing mechanical agitator works for a long time, which easily leads to serious wear and aging of the water-sealed sealing device. The worn water-sealed sealing device is prone to large gaps, poor sealing effect, and water and ore leakage from the gaps of the water-sealed sealing device. In addition, the existing mechanical agitator has a poor stirring effect when uniformly stirring iron powder, ore slurry and water, which easily leads to a high slurry density near the stirring shaft and uneven stirring. Utility Model Content

[0004] The purpose of the utility model is to provide a pneumatic stirring arrangement structure of a disc filter, in which external air is transported into the tank body through the cooperation of a vent pipe and a plurality of extended branch pipes, and the gas output from the extended branch pipe cooperates with the inner wall of the arc-shaped tank body to circulate the liquid in the tank body, thereby completing the gas stirring of the iron powder, ore pulp and water in the tank body, improving the stirring effect and avoiding the problem of uneven stirring; the vent pipe passes through the two side walls of the tank body and is fixed to the two side walls of the tank body, thereby avoiding the existing problem of water and ore leakage caused by severe wear when the vent pipe and the side walls of the tank body rotate.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a pneumatic stirring arrangement structure of a disc filter, comprising a trough body, a rotating shaft rotatably arranged between the two side walls of the trough body, a plurality of filter discs are arranged on the rotating shaft, a ventilation pipe is fixedly arranged between the two side walls of the trough body and on the lower side of the rotating shaft, a plurality of extended branch pipes are symmetrically fixed on the ventilation pipe, the ends of the extended branch pipes are arranged as wedge-shaped cross-section seals, a plurality of circular exhaust holes are provided on the wedge-shaped cross-section seals, a plurality of first crescent-shaped exhaust holes are provided on the side walls of the extended branch pipes, and a plurality of second crescent-shaped exhaust holes are provided on the top of the ventilation pipe.

[0006] Preferably, two extended branch pipes connected to the ventilation pipe are obliquely provided at the bottom of the ventilation pipe and located between two adjacent filter plates.

[0007] Preferably, a second crescent exhaust hole is provided at the top of the ventilation pipe between the two filter discs and at the left and right sides of the extended branch pipe.

[0008] Compared with the prior art, the beneficial effects of the present invention are:

[0009] 1. In the utility model, a vent pipe is provided through the two side walls of the trough body, and a plurality of extended branches connected to the vent pipe are provided at the bottom of the vent pipe. The outside air is transported into the trough body through the cooperation of the vent pipe and the plurality of extended branches. The gas output from the circular exhaust hole at the end of the extended branch cooperates with the inner wall of the arc-shaped trough body to circulate the liquid in the trough body, completing the gas stirring of the iron powder, ore pulp and water in the trough body, improving the stirring effect and avoiding the problem of uneven stirring.

[0010] 2. In the present invention, the vent pipe passes through the two side walls of the trough body and is fixed to the two side walls of the trough body. After the vent pipe is fixed to the two side walls of the trough body, the sealing performance of the vent pipe on the trough body is improved, avoiding the existing problem of water and ore leakage caused by severe wear when the vent pipe and the side walls of the trough body rotate. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0012] Figure 2 For this utility model Figure 1 Schematic diagram of the local explosion structure;

[0013] Figure 3 For this utility model Figure 1 Schematic diagram of the half-section structure of AA;

[0014] Figure 4 For this utility model Figure 1 Schematic diagram of the half-section structure of the middle BB;

[0015] Figure 5 For this utility model Figure 2 Schematic diagram of the locally enlarged structure of A in the middle.

[0016] In the picture:

[0017] 1- trough body, 2- rotating shaft, 3- filter disc, 4- opening, 5- vent pipe, 6- extended branch pipe, 7- wedge-shaped section seal, 8- circular exhaust hole, 9- first crescent-shaped exhaust hole, 10- second crescent-shaped exhaust hole. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] like Figure 1-5 As shown, a pneumatic stirring arrangement structure of a disc filter includes a tank body 1 with an open top structure, Figure 1 、 Figure 2 and Figure 4 As shown, the bottom of the tank body 1 is set to a semicircular structure, and a rotating shaft 2 is rotatably arranged between the two side walls of the tank body 1 and near the top position. One end of the rotating shaft 2 is connected to an external driving device, and a plurality of filter discs 3 are arranged on the rotating shaft 2 and located in the tank body 1. Figure 2 As shown, openings 4 are provided on both side walls of the trough body 1 and near the bottom. A ventilation pipe 5 is fixedly provided between the two side walls of the trough body 1 and through the opening 4 and located on the lower side of the rotating shaft 2. One end of the ventilation pipe 5 is blocked, and the other end is connected to the external air supply device. Preferably, the ventilation pipe 5 passes through the two side walls of the trough body 1 and is fixedly connected to the two side walls of the trough body 1. After the ventilation pipe 5 is fixed to the two side walls of the trough body 1, the sealing performance of the ventilation pipe 5 on the trough body 1 is improved, thereby avoiding the existing problem of water and ore leakage caused by severe wear when the ventilation pipe 5 rotates between the side walls of the trough body 1.

[0020] Specifically in this embodiment, combined with Figure 2 、 Figure 4 and Figure 5 As shown, at the bottom of the ventilation pipe 5 and between two adjacent filter discs 3, two extended branch pipes 6 connected to the ventilation pipe 5 are obliquely arranged, and the end of the extended branch pipe 6 is set to a wedge-shaped cross-section seal 7, and a plurality of circular exhaust holes 8 connected to the extended branch pipe 6 are opened on the wedge-shaped cross-section seal 7. A first crescent-shaped exhaust hole 9 connected to the extended branch pipe 6 is opened on both side walls of the extended branch pipe 6. Preferably, the setting of the first crescent-shaped exhaust hole 9 and the cooperation of the plurality of circular exhaust holes 8 help to increase the circulation amplitude of the liquid in the tank body 1. A second crescent-shaped exhaust hole 10 connected to the ventilation pipe 5 is opened on the top of the ventilation pipe 5 between the two filter discs 3 and on the left and right sides of the extended branch pipe 6. The shape setting of the first crescent-shaped exhaust hole 9 and the second crescent-shaped exhaust hole 10 increases the contact area between the gas and the liquid, and can provide a larger impact force. Preferably, the setting of the second crescent-shaped exhaust hole 10 continuously transports the liquid circulating at the bottom of the tank body 1 upward, which can efficiently filter out impurities in the liquid.

[0021] Preferably, the outside air is transported into the tank body 1 through the cooperation of the ventilation pipe 5 and multiple extended branch pipes 6, and the gas output from the circular exhaust hole 8 at the end of the extended branch pipe 6 cooperates with the inner wall of the arc-shaped tank body 1 to make the liquid in the tank body 1 circulate, completing the gas stirring of the iron powder, ore pulp and water in the tank body 1, improving the stirring effect, and avoiding the problem of uneven stirring.

[0022] Working principle:

[0023] First, the gas needs to be transported into the vent pipe 5 through an external air supply device. Since the end of the vent pipe 5 is in a blocked state, part of the gas in the vent pipe 5 flows into the multiple extended branch pipes 6, and the other part is discharged from the second crescent exhaust hole 10 at the top of the vent pipe 5. The gas flowing into the extended branch pipe 6 is discharged from the circular exhaust hole 8 at the end of the extended branch pipe 6 and the first crescent exhaust hole 9 on the side wall of the extended branch pipe 6 respectively. Since the circular exhaust hole 8 is opened on the wedge-shaped section seal 7, the gas is discharged from the circular exhaust hole 8 opened on the wedge-shaped section seal 7 and contacts the inner wall of the arc-shaped trough body 1 after being discharged, and drives the liquid to circulate and roll upward with the help of the arc-shaped inner wall of the trough body 1, and with the help of the gas discharged from the first crescent exhaust hole 9, the liquid in the trough body 1 is circulated and rolled to a large extent. After the liquid circulates, the iron powder and ore pulp doped in the liquid are evenly mixed. During the circulation process of the liquid, the circulating liquid is transported upward by the gas discharged from the second crescent exhaust hole 10, which is convenient for efficiently filtering out impurities in the liquid.

[0024] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A pneumatic stirring arrangement structure of a disc filter, comprising a tank body (1), a rotating shaft (2) rotatably arranged between two side walls of the tank body (1), and a plurality of filter discs (3) arranged on each of the rotating shafts (2), characterized in that: A vent pipe (5) is fixedly provided between the two side walls of the trough body (1) and on the lower side of the rotating shaft (2); a plurality of extended branch pipes (6) are symmetrically fixedly provided on the vent pipe (5); the ends of the extended branch pipes (6) are provided with wedge-shaped cross-section seals (7); a plurality of circular exhaust holes (8) are provided on the wedge-shaped cross-section seals (7); a plurality of first crescent-shaped exhaust holes (9) are provided on the side walls of the extended branch pipes (6); and a plurality of second crescent-shaped exhaust holes (10) are provided on the top of the vent pipe (5).

2. The pneumatic stirring arrangement structure of a disc filter according to claim 1, characterized in that: Two extended branch pipes (6) connected to the ventilation pipe (5) are obliquely arranged at the bottom of the ventilation pipe (5) and located between two adjacent filter plates (3).

3. The pneumatic stirring arrangement structure of a disc filter according to claim 2, characterized in that: A second crescent-shaped exhaust hole (10) is provided at the top of the vent pipe (5) between the two filter discs (3) and on both the left and right sides of the extended branch pipe (6).

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