Beneficiation wastewater treatment device

Abstract

The utility model relates to a beneficiation wastewater treatment device, which comprises a flotation tank body, a mineralization feed pipe, two groups of filter components, a sludge discharge pipe and an isolation baffle, the flotation tank body comprises an upper tank body and a lower tank body which are fixedly connected, the two groups of filter components are respectively arranged at the lower ends of two opposite side surfaces of the upper tank body, and each filter component comprises a filter screen and a water pumping pipe; the sludge discharge pipe is fixedly arranged at the bottom end of the lower tank body; the isolation baffle is arranged in the flotation tank body, the two end faces, perpendicular to the length direction, of the isolation baffle are fixedly arranged on the two opposite side walls of the flotation tank body respectively, and the top end of the isolation baffle is higher than the filter screen. The filter screen and the isolation baffle are consistent in length direction and are symmetrically arranged on the two sides of the spray head. According to the device, the beneficiation wastewater is treated in a flotation and filtration combined mode, precipitation treatment on the beneficiation wastewater is not needed, the beneficiation wastewater treatment site is saved, the beneficiation wastewater treatment process is simplified, the time consumed for beneficiation wastewater treatment is shortened, and the beneficiation wastewater treatment efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a device for treating ore dressing wastewater. Background Art

[0002] The non-driven flotation cell is mainly applied to the ore dressing production of metal minerals such as bauxite, molybdenum ore, gold ore, etc., and it performs excellently especially when treating complex or difficult-to-treat sewage, wastewater and other wastes.

[0003] For example, as disclosed in a method for treating ore dressing wastewater with the Chinese invention patent authorization publication number CN107473466B, after the ore dressing wastewater is aerated and preliminarily settled, the supernatant after precipitation is subjected to air flotation by using a non-driven flotation cell. After treatment, the suspended solids (SS) and organic matter (COD) in the water are greatly reduced, and while clarifying the water quality, the purpose of deodorization is achieved.

[0004] For example, as disclosed in an intelligent flotation device with the Chinese utility model patent authorization publication number CN208561755U, through the setting of secondary treatment of sewage floating and precipitation and automatic sludge discharge, the whole process runs intelligently, without power and without manual operation; the water obtained after treatment has excellent quality and no pollution.

[0005] However, whether it is the above-mentioned scheme of aeration, preliminary sedimentation and then air flotation, or the above-mentioned scheme of sludge discharge after flotation and sedimentation treatment, both require precipitation treatment of the ore dressing wastewater, which requires a large site and a long time-consuming, resulting in low efficiency of wastewater treatment. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a device for treating ore dressing wastewater to solve the above problems existing in the prior art.

[0007] To solve the above problems, the utility model provides a device for treating ore dressing wastewater, which includes a flotation cell body, a mineralization feed pipe, a filtering component, a sludge discharge pipe and a partition baffle. The flotation cell body includes an upper cell body and a lower cell body which are fixedly connected. The upper cell body is in a cuboid shape, and the lower cell body is in a triangular prism shape; the spray head provided at the bottom end of the mineralization feed pipe is arranged inside the flotation cell body; two groups of filtering components are respectively arranged at the lower ends of two opposite side surfaces of the upper cell body. The filtering component includes a filter net fixedly arranged on the side wall of the upper cell body and a water suction pipe; the sludge discharge pipe is fixedly arranged at the bottom end of the lower cell body; the partition baffle is arranged inside the flotation cell body, and the two end faces perpendicular to the length direction of the partition baffle are respectively fixedly arranged on two opposite side walls of the flotation cell body. The top end of the partition baffle is higher than the filter net; the length direction of the filter net is the same as that of the partition baffle, and the filter net and the partition baffle are symmetrically arranged on both sides of the spray head.

[0008] The device for treating ore dressing wastewater provided by the utility model further has the following technical features:

[0009] Furthermore, the length of the filter screen is the same as that of the isolation baffle.

[0010] Furthermore, the cross-section of the isolation baffle perpendicular to its length direction is in a V-like shape, the bottom end of the isolation baffle is an arc plate with the opening facing upward, and the spray nozzle of the spray head faces the arc plate.

[0011] Furthermore, the gap between the filter screen and the isolation baffle at the upper end of the arc plate increases arithmetically from top to bottom.

[0012] Furthermore, the bottom end of the isolation baffle is lower than the filter screen, and the gap between the isolation baffle between the lower end of the filter screen and the upper end of the arc plate and the lower tank body is the same.

[0013] Furthermore, a silt discharge pipe is provided on the lower tank body, and the bottom endpoint of the inner diameter of the silt discharge pipe coincides with the bottom endpoint of the inner surface of the arc plate.

[0014] Furthermore, the isolation baffle is set as an arc plate.

[0015] Furthermore, multiple groups of mineralization feed pipes are arranged along the length direction of the isolation baffle.

[0016] Furthermore, the sludge discharge pipe includes a semi-circular pipe communicating with the inner cavity of the lower tank body and a circular pipe extending out of the lower tank body, and a spiral conveyor blade is arranged in the semi-circular pipe.

[0017] Furthermore, the semi-circular pipe and the circular pipe are coaxial, the length of the spiral conveyor blade is greater than that of the semi-circular pipe, and the spiral conveyor blade extends into the circular pipe.

[0018] The utility model has the following beneficial effects: The ore dressing wastewater treatment device of the utility model treats the ore dressing wastewater by combining flotation and filtration, without the need for sedimentation treatment of the ore dressing wastewater, saving the ore dressing wastewater treatment site, simplifying the ore dressing wastewater treatment process, shortening the time consumed for ore dressing wastewater treatment, and having high ore dressing wastewater treatment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the overall structural schematic diagram of the utility model;

[0020] Figure 2 is Figure 1 the sectional view along the line A-A in

[0021] Figure 3 is Figure 2 the front view perspective view of

[0022] Figure 4 is Figure 1 the three-dimensional view of another perspective of

[0023] Figure 5 is the sectional view of another embodiment of the utility model;

[0024] Figure 6 A cross-sectional view of another embodiment of the present utility model. Detailed implementation manners

[0025] The present utility model will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments. It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0026] As Figures 1 to 6 In the embodiment of the ore dressing wastewater treatment device of the present utility model shown, the ore dressing wastewater treatment device includes a flotation tank body 1, a mineralization feed pipe 2, a filtering assembly 3, a sludge discharge pipe 4, and a partition baffle 5, wherein the flotation tank body 1 and the mineralization feed pipe 2 are components related to a non-driven flotation tank. It should be noted that the non-driven flotation tank further includes a foam collection tank (not shown in the figure) provided at the top end of the flotation tank body 1 and other related components. Other related components such as the foam collection tank of the non-driven flotation tank belong to the prior art. For details, reference can be made to the non-driven flotation tank described in Chinese Utility Model Patent CN200920277994.6 and Chinese Invention Patent CN200810240019.8.

[0027] Specifically, the flotation tank body 1 includes an upper tank body 11 and a lower tank body 12 that are fixedly connected. The upper tank body 11 is in the shape of a cuboid, and the lower tank body 12 is in the shape of a triangular prism. The lower tank body 12 is fixedly provided on the lower end surface of the upper tank body 11, and the two can be integrally formed into the flotation tank body 1 by welding.

[0028] The spray head 21 provided at the bottom end of the mineralization feed pipe 2 is arranged inside the flotation tank body 1. The top end of the mineralization feed pipe 2 is further connected with related components for mineralizing the ore dressing wastewater, so that air is fully mixed with a part of the solid particles (i.e., hydrophobic particles) in the ore dressing wastewater, and this part of the solid particles is fully attached to the bubbles.

[0029] Two groups of filtering components 3 are respectively arranged at the lower ends of two opposite side surfaces of the upper tank body 11. The filtering component 3 includes a filter screen 31 fixedly arranged on the side wall of the upper tank body 11 and a water suction pipe 32. The filter screen 31 is used to filter the solid particles (i.e., hydrophilic particles) that are not attached to the bubbles sprayed by the spray head 21, so that this part of the solid particles are filtered out and settled in the lower tank body 12; the water suction pipe 32 communicates with the inner cavity of the upper tank body 11, and the two are separated by the filter screen 31. The water suction pipe 32 is fixedly connected to the outer wall of the upper tank body 11 and the two are sealed. The other end of the water suction pipe 32 is connected to a water pump or pressure is applied using a siphon to filter the solid particles that are not attached to the bubbles on the other end of the filter screen 31, and the filtered reclaimed water enters the next treatment step; because the hydrophilic particles are more closely combined with water, the scheme of using the filter screen 31 and the water suction pipe 32 can efficiently separate the hydrophilic particles and make the hydrophilic particles accumulate in the lower tank body 12; in actual use, an anti-flushing measure can be used on the water suction pipe 32 to prevent the filter efficiency of the filter screen 31 from decreasing due to blockage. The said anti-flushing measure is prior art and will not be elaborated here.

[0030] The sludge discharge pipe 4 is fixedly arranged at the bottom end of the lower tank body 12, specifically at the edge of the bottom of the triangular prism of the lower tank body 12. The two can be integrally formed by welding. The sludge discharge pipe 4 communicates with the lower tank body 12. When a large amount of solid particles generated in the lower tank body 12 due to the filtering component 3 accumulate, opening the sludge discharge pipe 4 can effectively discharge the accumulated solid particles.

[0031] The isolation baffle 5 is arranged in the flotation tank body 1. The two end faces of the isolation baffle 5 perpendicular to its length direction are respectively fixedly arranged on two opposite side walls of the flotation tank body 1. The top end of the isolation baffle 5 is higher than the filter screen 31; the length directions of the filter screen 31 and the isolation baffle 5 are the same, and the filter screen 31 and the isolation baffle 5 are symmetrically arranged on both sides of the spray head 21.

[0032] The isolation baffle 5 is mainly used to isolate the spray head 21 and the filter screen 31. If the mineralized waste water containing a large amount of foam sprayed by the spray head 21 enters the filter screen 31, it will affect the operation of the filtering component 3; in addition, the isolation baffle 5 is also used to isolate the spray head 21 and the lower tank body 12 to prevent the water flow of the mineralized waste water sprayed by the spray head 21 from affecting the solid particles accumulated in the lower tank body 12.

[0033] Specifically, such as Figure 3 、 Figure 5 、 Figure 6As shown, a filtration zone a is formed between the filter screen 31 and the isolation baffle 5 (or between two opposite filter screens 31), where intermediate water is extracted and solid particles are filtered; a sludge zone b is formed between the lower trough body 12 and the isolation baffle 5, where the filtered solid particles are accumulated and further discharged through the sludge discharge pipe 4; a flotation zone c is formed above the isolation baffle 5, where the solid particles (i.e., hydrophobic particles) attached to the bubbles are subjected to flotation.

[0034] The ore dressing wastewater treatment device of the present utility model treats ore dressing wastewater by combining flotation and filtration, without the need for sedimentation treatment of ore dressing wastewater, saving the site for ore dressing wastewater treatment, simplifying the ore dressing wastewater treatment process, shortening the time consumed for ore dressing wastewater treatment, and having high ore dressing wastewater treatment efficiency.

[0035] In an embodiment of the present application, preferably, the length of the filter screen 31 is the same as the length of the isolation baffle 5, that is, the length direction of the filter screen 31 abuts against the two side walls of the upper trough body 11, so as to increase the area of the filtration zone a covered by the filter screen 31 and improve the filtration efficiency.

[0036] In an embodiment of the present application, as Figure 2 、 Figure 3 、 Figure 4 shown, preferably, the cross-section of the isolation baffle 5 perpendicular to its length direction is in a V-like shape, the bottom end of the isolation baffle 5 is provided with an arc plate 51 with an upward opening, that is, the isolation baffle 5 opens upward; the spray head 21 extends into the isolation baffle 5, and the spray orifice of the spray head 21 faces the arc plate 51, so that the mineralized wastewater sprayed out impacts the arc plate 51 downward to prevent solid particles from accumulating in the arc plate 51; the isolation baffle 5 opens upward, which does not hinder flotation and also plays a role in isolating the spray head 21 and the filter screen 31.

[0037] In the above embodiment, preferably, the gap between the filter screen 31 and the isolation baffle 5 at the upper end of the arc plate 51 increases arithmetically from top to bottom, that is, the isolation baffle 5 in the filtration zone a is inclined; in this way, on the one hand, the flotation foam can float evenly to the water surface when floating, and on the other hand, since the upper end of the filtration zone a is smaller than the lower end, the probability that the intermediate water enters the filtration assembly 3 when descending from the upper part to the lower part is also increased, improving the filtration efficiency.

[0038] In the above embodiment, preferably, the bottom end of the isolation baffle 5 is lower than the filter screen 31, and the gap between the isolation baffle 5 between the lower end of the filter screen 31 and the upper end of the arc plate 51 and the lower trough body 12 is the same, that is, a part of the isolation baffle 5 (the isolation baffle 5 between the lower end of the filter screen 31 and the upper end of the arc plate 51) is arranged parallel to the adjacent lower trough body 12; in this way, the sediment of the solid particles accumulated in the sludge zone b is restricted by the isolation baffle 5 and will not be overly disturbed by the water flow formed by the filtration assembly 3 and the spray head 21.

[0039] In the above embodiments, preferably, a silt discharge pipe 13 is provided on the lower trough body 12, and the bottom endpoint of the inner diameter of the silt discharge pipe 13 coincides with the bottom endpoint of the inner surface of the arc plate 51; since the cross-section of the isolation baffle 5 perpendicular to its length direction is in a V-like shape and the height of this V-like shape is relatively high, it is inevitable that solid particles will accumulate inside the isolation baffle 5. The provided silt discharge pipe 13 can be opened or closed as the situation requires, and the accumulated solid particles are discharged by using the water pressure in the upper trough body 11.

[0040] During specific operation, when the waste water sprayed out from the nozzle 21 impacts the arc plate 51, the waste water flow moves upward along the inner wall of the isolation baffle 5, and the mineralized waste water is flotated in the flotation area c. Another part of the solid particles not carried away by the foam enters the filtration area a and is filtered by the filtration assembly 3. The filtered solid particles are orderly accumulated in the sludge area b and wait to be discharged by the sludge discharge pipe 4; the water flow disturbance sprayed out by the nozzle 21 can prevent the accumulation of solid particles inside the isolation baffle 5 to a certain extent. And when the accumulation is inevitable, the silt discharge pipe 13 can be opened to discharge the silt by using the water pressure.

[0041] In one embodiment of the present application, preferably, as Figure 5 、 Figure 6 shown, the isolation baffle 5 is set as an arc-shaped plate. The arc of the isolation baffle 5 can be an arc with an upward opening or a downward opening in the figure. The isolation baffle 5 is used to isolate the nozzle 21 and the filter net 31, and is also used to isolate the nozzle 21 and the lower trough body 12; of course, in other embodiments, the isolation baffle 5 can also be a straight plate arranged horizontally, or a U-shaped plate with an upward opening, or other types of isolation baffles 5 used to isolate the nozzle 21 and the filter net 31 and also used to isolate the nozzle 21 and the lower trough body 12.

[0042] In any of the above embodiments, preferably, multiple groups of mineralization feed pipes 2 are arranged along the length direction of the isolation baffle 5 to improve the feeding efficiency, and in cooperation with the filtration assembly 3, the filtration efficiency can be improved to improve the overall waste water treatment efficiency.

[0043] In any of the above embodiments, preferably, the sludge discharge pipe 4 includes a semi-circular pipe 41 communicated with the inner cavity of the lower trough body 12 and a circular pipe 42 extending out of the lower trough body 12. A spiral conveying blade 43 is arranged inside the semi-circular pipe 41; the spiral conveying blade 43 contains a central rotating shaft, and the central rotating shaft is connected with a speed reducer and a motor to support the rotation of the spiral conveying blade 43; when the accumulated solid particles form a certain volume, it may not be possible to effectively discharge the accumulated sludge only by using the water pressure in the flotation trough body 1. Therefore, the spiral conveying blade 43 is provided. On the one hand, it can prevent the sludge discharge pipe 4 from being blocked, and on the other hand, it can effectively improve the sludge discharge efficiency.

[0044] In the above embodiments, preferably, the semi-circular pipe 41 and the circular pipe 42 are coaxial, the length of the spiral conveyor blade 43 is greater than that of the semi-circular pipe 41, and the spiral conveyor blade 43 extends into the circular pipe 42, so that the sludge can be directly driven by the spiral conveyor blade 43 to be discharged from the sludge discharge pipe 4, preventing blockage from forming in the circular pipe 42.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A mineral processing wastewater treatment device, characterized in that: include: A flotation cell (1), the flotation cell (1) comprising an upper cell (11) and a lower cell (12) which are fixedly connected, the upper cell (11) being in the shape of a rectangular parallelepiped, and the lower cell (12) being in the shape of a triangular prism; A mineralization feed pipe (2), the bottom end of which is provided with a nozzle (21) disposed in the flotation tank (1); Filter components (3), two groups of filter components (3) are respectively arranged at the lower ends of two opposite side surfaces of the upper tank body (11), and the filter components (3) include a filter screen (31) fixedly arranged on the side wall of the upper tank body (11) and a water extraction pipe (32); A mud discharge pipe (4), the mud discharge pipe (4) being fixedly arranged at the bottom end of the lower tank body (12); An isolation baffle (5) is disposed in the flotation tank body (1); two end surfaces of the isolation baffle (5) perpendicular to the length direction thereof are respectively fixedly disposed on two opposite side walls of the flotation tank body (1); a top end of the isolation baffle (5) is higher than the filter screen (31); the filter screen (31) and the isolation baffle (5) have the same length direction; the filter screen (31) and the isolation baffle (5) are symmetrically disposed on both sides of the nozzle (21).

2. The ore dressing wastewater treatment device according to claim 1, characterized in that: The length of the filter screen (31) is consistent with the length of the isolation baffle (5).

3. The ore dressing wastewater treatment device according to claim 2, characterized in that: The cross section of the isolation baffle (5) perpendicular to its length direction is V-shaped, the bottom end of the isolation baffle (5) is configured as an arc plate (51) with an opening facing upward, and the nozzle of the nozzle (21) faces the arc plate (51).

4. The ore dressing wastewater treatment device according to claim 3, characterized in that: The gap between the filter screen (31) and the isolation baffle (5) at the upper end of the arc plate (51) increases equidistantly from top to bottom.

5. The ore dressing wastewater treatment device according to claim 4, characterized in that: The bottom end of the isolation baffle (5) is lower than the filter screen (31), and the gap between the isolation baffle (5) and the lower tank body (12) between the lower end of the filter screen (31) and the upper end of the arc plate (51) is consistent.

6. The ore dressing wastewater treatment device according to claim 5, characterized in that: A silt discharge pipe (13) is provided on the lower tank body (12), and the bottom end point of the inner diameter of the silt discharge pipe (13) coincides with the bottom end point of the inner surface of the arc plate (51).

7. The ore dressing wastewater treatment device according to claim 2, characterized in that: The isolation baffle (5) is configured as an arc-shaped plate.

8. The ore dressing wastewater treatment device according to any one of claims 1 to 7, characterized in that: A plurality of mineralization feed pipes (2) are arranged along the length direction of the isolation baffle (5).

9. The ore dressing wastewater treatment device according to claim 8, characterized in that: The mud discharge pipe (4) comprises a semicircular pipe (41) communicating with the inner cavity of the lower trough body (12) and a circular pipe (42) extending out of the lower trough body (12), and a spiral conveying blade (43) is provided in the semicircular pipe (41).

10. The ore dressing wastewater treatment device according to claim 9, characterized in that: The semicircular tube (41) and the circular tube (42) are coaxial, the length of the spiral conveying blade (43) is greater than that of the semicircular tube (41), and the spiral conveying blade (43) extends into the circular tube (42).

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