Foam defoaming structure of thickener

Abstract

The utility model discloses a thickener foam defoaming structure which comprises a thickening tank, a deposition layer is arranged in the thickening tank, a transition layer is arranged at the top end of the deposition layer, a clarification layer is arranged at the top end of the transition layer, a foam layer is arranged at the top end of the clarification layer, and an annular pipe is sleeved on the outer wall of the thickening tank. The annular pipe is connected with the thickening tank through a fixing block, the bottom end of the annular pipe is connected with the thickening tank through a conveying pipe, one side of the conveying pipe extends into the clarification layer, a plurality of uniformly distributed connecting pipes are arranged at the top end of the annular pipe, and a spray head is arranged at one end, far away from the annular pipe, of each connecting pipe. The defoaming device has the beneficial effects that when a foam layer in the thickening tank is subjected to water spraying defoaming, the foam layer can be stirred at the same time by arranging the stirring assembly, the foam eliminating efficiency is improved, the stirring efficiency of the stirring assembly is improved through revolution and rotation of multiple groups of stirring blades, and the defoaming speed is further increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to thickener defoaming technical field, specifically, relate to a thickener foam defoaming structure. BACKGROUND

[0002] Thickener is the solid liquid separation equipment based on gravity sedimentation, and four layers are formed when working, from top to bottom are foam layer, clear layer, transition layer and sediment layer. The separation of material and water occurs in the transition layer of the ore pulp, the material with large density descends to form the sediment layer, and the water goes up to form the clear layer due to the sedimentation, and finally is discharged from the overflow port. Through analysis, there is no material or very little material in the clear layer, and the foam of the thickener liquid surface is easy to accumulate to form the foam layer, and the natural elimination time is long, and the material is lost from the overflow port when the accumulation is serious, therefore, many ore dressing plants adopt the method of adding defoaming agent or water to eliminate the foam and reduce the material loss. However, when the water or defoaming agent is used to defoam the foam of the thickener, the material cost and subsequent water treatment cost are greatly increased.

[0003] According to the defoaming structure for the foam layer of the thickener disclosed in Chinese patent CN202122236619.0, the clear water in the clear layer is sucked out through the water suction pump, and the foam layer is defoamed through the defoaming pipe, so that the defoaming agent is not needed, and the material and water treatment costs are reduced. However, the existing defoaming structure for the foam layer of the thickener only sprays water on the foam layer, and the defoaming efficiency is low.

[0004] At present, no effective solution has been proposed for the problems in the related art. UTILITY MODEL CONTENTS

[0005] In view of the problems in the related art, the utility model provides a defoaming structure for the foam of the thickener to overcome the above technical problems existing in the prior art.

[0006] Therefore, the utility model adopts the specific technical scheme as follows:

[0007] A defoaming structure for the foam of the thickener, comprising a thickening tank, a sediment layer is arranged in the thickening tank, a transition layer is arranged at the top end of the sediment layer, a clear layer is arranged at the top end of the transition layer, a foam layer is arranged at the top end of the clear layer, an annular pipe is arranged on the outer wall of the thickening tank, the annular pipe is connected with the thickening tank through a fixing block, a conveying pipe is connected with the thickening tank at the bottom end of the annular pipe, the bottom end of the conveying pipe extends into the clear layer, a plurality of connecting pipes are arranged at the top end of the annular pipe, a plurality of nozzles are arranged at the ends of the connecting pipes away from the annular pipe, and a stirring assembly matched with the foam layer is arranged at the top end of the thickening tank.

[0008] Preferably, the bottom end of the thickening tank is provided with a discharge pipe.

[0009] As preferred, a delivery pump is arranged outside the thickener tank and on the delivery pipe.

[0010] As preferred, the stirring assembly comprises a U-shaped frame arranged at the top end of the thickener tank, a rotating shaft one arranged at the inner top end of the U-shaped frame, a cross frame arranged at the bottom end of the rotating shaft one, a plurality of rotating shaft twos arranged at the bottom end of the cross frame in a uniform distribution, and stirring blades arranged at the bottom end of the rotating shaft twos and extending into the foam layer.

[0011] As preferred, the rotating shaft one extends to the outside of the U-shaped frame and is connected with the driving end of the driving motor.

[0012] As preferred, an annular gear is arranged on the outer wall of the rotating shaft two, the annular gear is connected with the U-shaped frame through a fixing frame, and the rotating shaft two is connected with the gear of the annular gear through the gear penetrating the outer cross frame.

[0013] The beneficial effects of the thickener foam breaking structure are as follows: when water is sprayed to break the foam layer in the thickener tank, the stirring assembly can be used to stir the foam layer at the same time, so that the foam breaking efficiency is improved, the stirring efficiency of the stirring assembly is improved through revolution and rotation of the plurality of stirring blades, and the foam breaking speed is further accelerated. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0015] Figure 1 is a whole structure schematic view of a thickener foam breaking structure according to an embodiment of the present application;

[0016] Figure 2 is a front view of a thickener foam breaking structure according to an embodiment of the present application;

[0017] Figure 3 is a sectional view of a thickener foam breaking structure according to an embodiment of the present application;

[0018] Figure 4 is a structure schematic view of a U-shaped frame in a thickener foam breaking structure according to an embodiment of the present application.

[0019] In the drawings:

[0020] 1, thickening tank; 2, sediment layer; 3, transition layer; 4, clarification layer; 5, foam layer; 6, annular pipe; 7, fixed block; 8, conveying pipe; 9, connecting pipe; 10, nozzle; 11, discharge pipe; 12, conveying pump; 13, U-shaped frame; 14, rotating shaft one; 15, cross frame; 16, rotating shaft two; 17, stirring blade; 18, driving motor; 19, ring gear; 20, fixed frame; 21, gear. DETAILED DESCRIPTION

[0021] To further illustrate the embodiments, the utility model provides with the drawings, these drawings are part of the utility model disclosure, it mainly used to illustrate the embodiment, and can cooperate with the relevant description of the specification to explain the operation principle of the embodiment, cooperate with reference to these contents, the person skilled in the art should be able to understand other possible implementation ways and the advantages of the utility model, the components in the drawing are not drawn according to scale, and similar component symbols are usually used to represent similar components.

[0022] According to the embodiment of the utility model, a thickener foam defoaming structure is provided.

[0023] Embodiment one;

[0024] As Figures 1-4 shown, according to the thickener foam defoaming structure of the utility model embodiment, including thickening tank 1, its characterized in that, the thickening tank 1 is equipped with sediment layer 2, the sediment layer 2 top is equipped with transition layer 3, the transition layer 3 top is equipped with clarification layer 4, the clarification layer 4 top is equipped with foam layer 5, the thickening tank 1 outer wall is equipped with annular pipe 6, the annular pipe 6 is connected with the thickening tank 1 through fixed block 7, the annular pipe 6 bottom is connected with the thickening tank 1 through conveying pipe 8, the conveying pipe 8 bottom extends to the clarification layer 4, the annular pipe 6 top is equipped with several evenly distributed connecting pipes 9, the connecting pipe 9 is equipped with nozzle 10 away from the one end of the annular pipe 6, the thickening tank 1 top is equipped with the stirring assembly matched with the foam layer 5.

[0025] Embodiment two;

[0026] As Figures 1-4As shown, including the thickening tank 1, characterized in that, the thickening tank 1 is equipped with the deposition layer 2, the top end of the deposition layer 2 is equipped with the transition layer 3, the top end of the transition layer 3 is equipped with the clarification layer 4, the top end of the clarification layer 4 is equipped with the foam layer 5, the outer wall of the thickening tank 1 is equipped with the annular pipe 6, the annular pipe 6 is connected with the thickening tank 1 through the fixing block 7, the bottom end of the annular pipe 6 is connected with the thickening tank 1 through the conveying pipe 8, the bottom end of the conveying pipe 8 extends to the clarification layer 4, the top end of the annular pipe 6 is equipped with a plurality of evenly distributed connecting pipes 9, one end of the connecting pipe 9 away from the annular pipe 6 is equipped with the spray head 10, the top end of the thickening tank 1 is equipped with the stirring assembly matched with the foam layer 5. The bottom end of the thickening tank 1 is equipped with the discharge pipe 11. The conveying pump 12 is arranged outside the thickening tank 1 and on the conveying pipe 8. When it is needed to spray water to defoam the foam, the conveying pump 12 is started to convey the clean water in the clarification layer 4 to the annular pipe 6 through the conveying pipe 8, the water in the annular pipe 6 is conveyed to the multiple connecting pipes 9 and finally sprayed out from the spray head 10 to spray water to defoam the foam in the foam layer 5, the water sprayed into the foam layer is more uniform and the range is wider through the arrangement of the annular pipe and the multiple connecting pipes.

[0027] Example three;

[0028] As Figures 1-4As shown, including the thickening tank 1, characterized in that, the thickening tank 1 is equipped with the deposition layer 2, the top end of the deposition layer 2 is equipped with the transition layer 3, the top end of the transition layer 3 is equipped with the clarification layer 4, the top end of the clarification layer 4 is equipped with the foam layer 5, the outer wall of the thickening tank 1 is equipped with the annular pipe 6, the annular pipe 6 is connected with the thickening tank 1 through the fixed block 7, the bottom end of the annular pipe 6 is connected with the thickening tank 1 through the conveying pipe 8, the bottom end of the conveying pipe 8 extends into the clarification layer 4, the top end of the annular pipe 6 is equipped with a plurality of evenly distributed connecting pipes 9, one end of the connecting pipe 9 away from the annular pipe 6 is equipped with the spray head 10, the top end of the thickening tank 1 is equipped with the stirring assembly matched with the foam layer 5. The stirring assembly comprises the U-shaped frame 13 provided at the top end of the thickening tank 1, the rotating shaft one 14 provided at the inner top end of the U-shaped frame 13, the cross frame 15 provided at the bottom end of the rotating shaft one 14, a plurality of evenly distributed rotating shaft twos 16 provided at the bottom end of the cross frame 15, and the stirring blades 17 provided at the bottom end of the rotating shaft twos 16 and extending into the foam layer 5. The top end of the rotating shaft one 14 extends out of the U-shaped frame 13 and is connected with the driving end of the driving motor 18. The outer wall of the rotating shaft two 16 is sleeved with the ring gear 19, the ring gear 19 is connected with the U-shaped frame 13 through the fixed frame 20, and the top end of the rotating shaft two 16 penetrates the gear 21 engaged with the ring gear 19 outside the cross frame 15 and is connected with the ring gear 19. In the water spraying defoaming process, the driving motor 18 is started to drive the rotating shaft one 14 to rotate, the rotating shaft one 14 drives the cross frame 15 to rotate, the cross frame 15 drives the stirring blades 17 to revolve through the rotating shaft two 16, and the rotating shaft two 16 drives the gear 21 to revolve around the ring gear 19. Since the gear 21 is engaged with the ring gear 19, when the gear 21 revolves around the ring gear 19, the gear 21 will rotate, that is, the gear 21 drives the stirring blades 17 to rotate through the rotating shaft two 16. When the foam layer in the thickening tank is sprayed and defoamed, the stirring assembly can stir the foam layer at the same time, improve the foam elimination efficiency, and the stirring assembly improves the stirring efficiency through multiple groups of stirring blades revolving and rotating, and further speeds up the defoaming speed.

[0029] In actual application, when water spraying defoaming is needed for the foam, the delivery pump 12 is started to deliver the clear water in the clear layer 4 to the annular pipe 6 through the delivery pipe 8, the water entering the annular pipe 6 is finally sprayed from the spray head 10 to spray water defoaming for the foam in the foam layer 5 through the multiple groups of connecting pipes 9, the water sprayed into the foam layer is more uniform and wider through the annular pipe and the multiple groups of connecting pipes; in the water spraying defoaming process, the driving motor 18 is started to drive the rotation of the first shaft 14, the first shaft 14 drives the rotation of the cross 15, the cross 15 drives the revolution of the stirring blade 17 through the second shaft 16, and the second shaft 16 drives the revolution of the gear 21 around the annular gear 19, since the gear 21 is engaged with the annular gear 19, when the gear 21 revolves around the annular gear 19, the gear 21 will rotate, that is, the gear 21 drives the rotation of the stirring blade 17 through the second shaft 16, when the foam layer in the thickening tank is sprayed and defoamed, the stirring assembly can be arranged to stir the foam layer at the same time, the foam elimination efficiency is improved, the stirring assembly improves the stirring efficiency through the revolution and rotation of the multiple groups of stirring blades, and the defoaming speed is further accelerated.

[0030] In summary, according to the above technical scheme of the utility model, when the foam layer in the thickening tank is sprayed and defoamed, the stirring assembly can be arranged to stir the foam layer at the same time, the foam elimination efficiency is improved, the stirring assembly improves the stirring efficiency through the revolution and rotation of the multiple groups of stirring blades, and the defoaming speed is further accelerated.

[0031] The above only describes preferred embodiments of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A thickener froth deaeration structure comprising a thickener basin (1), characterized in that, The thickener (1) is provided with a sedimentation layer (2), the top end of the sedimentation layer (2) is provided with a transition layer (3), the top end of the transition layer (3) is provided with a clarification layer (4), the top end of the clarification layer (4) is provided with a foam layer (5), the outer wall of the thickener (1) is provided with an annular pipe (6), the annular pipe (6) is connected with the thickener (1) through a fixed block (7), the bottom end of the annular pipe (6) is connected with the thickener (1) through a conveying pipe (8), the bottom end of the conveying pipe (8) extends into the clarification layer (4), the top end of the annular pipe (6) is provided with a plurality of uniformly distributed connecting pipes (9), one end of the connecting pipe (9) away from the annular pipe (6) is provided with a spray head (10), and the top end of the thickener (1) is provided with a stirring assembly matched with the foam layer (5).

2. A thickener froth defoaming structure according to claim 1, characterised in that, The bottom end of the thickener (1) is provided with a discharge pipe (11).

3. A thickener froth defoaming structure according to claim 1, characterized in that, The conveying pump (12) is arranged outside the thickener (1) and on the conveying pipe (8).

4. A thickener froth defoaming structure according to claim 1, characterized in that, The stirring assembly comprises a U-shaped frame (13) arranged at the top end of the thickener (1), a rotating shaft one (14) arranged at the inner top end of the U-shaped frame (13), a cross frame (15) arranged at the bottom end of the rotating shaft one (14), a plurality of uniformly distributed rotating shaft twos (16) arranged at the bottom end of the cross frame (15), and stirring blades (17) arranged at the bottom end of the rotating shaft twos (16) and extending into the foam layer (5).

5. A thickener froth defoaming structure according to claim 4, characterised in that, The top end of the rotating shaft one (14) extends out of the U-shaped frame (13) and is connected with the driving end of a driving motor (18).

6. A thickener froth defoaming structure according to claim 4, characterised in that, The outer wall of the rotating shaft two (16) is provided with an annular gear (19), the annular gear (19) is connected with the U-shaped frame (13) through a fixed frame (20), and the top end of the rotating shaft two (16) penetrates through a gear (21) engaged with the annular gear (19) outside the cross frame (15).

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