Middle ore overflow water muddy water disposal system for dressing plant

Abstract

The utility model belongs to the technical field of concentrating mill production water treatment, and relates to a concentrating mill middling overflow water muddy flow disposal system which comprises a 65-meter thickener used for treating magnetic separation tailings, and underflow of the 65-meter thickener is provided for bulk flotation equipment; the 65-meter thickener overflow weir is used for introducing overflow water of the 65-meter thickener; the 53m thickener is used for introducing the overflow water into an overflow weir of the 65m thickener; the filling or filter pressing device is used for introducing underflow of the 53m thickener; the overflow weir of the 53-meter thickener is used for introducing overflow water of the 53-meter thickener; the collecting water tank is used for introducing the overflow water in the overflow weir of the 53-meter thickener; the high-level water tank introduces water in the water collecting tank through a high-pressure water pump; and the flocculating agent device is used for providing a flocculating agent for the 53-meter thickener. And the effect of settling the argillaceous ore pulp is achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the production water treatment technical field of ore dressing plant relates to the ore dressing plant middling overflow water running muddy disposal system. BACKGROUND

[0002] Crushing adopts three sections one closed circuit, and grinding and floating adopt the process of magnetic separation first and then floating, the magnetic separation is the conventional two sections closed circuit grinding, and the process is step grinding and step selection, the main products are iron concentrate with the grade of 65% or more, sulfur concentrate with the grade of 45% or more and copper concentrate with the grade of 18% or more.

[0003] 65m thickener is the middling thickening disposal equipment, and the magnetic separation tailings are pumped to mixed flotation after being thickened by the 65m thickener to carry out copper and sulfur separation operation. The middling production water is overflowed to the collection tank (the design capacity of the collection tank is 2000m 3 +6000m 3 +6000m 3 ) through the 65m thickener, and then is pumped to the high-level tank (the design capacity of the high-level tank is 6000m 3 ) by using the high-pressure water pump, and then is self-flowed from the high-level tank to each process flow point; but in the daily production process, especially when the grade of the raw ore is low, there are more middlings after the magnetic separation, the 65m thickener cannot dispose too much middlings, and the running muddy phenomenon occurs.

[0004] The running muddy of the production water brings more disadvantages:

[0005] 1. The 65m collection tank and the high-level tank are occupied by sludge, and the effective volume becomes less and less;

[0006] 2. The high-level tank is designed with a partition wall in the early stage, the production water enters the high-level tank in S-shaped flow, and the sludge is also considered to have a sedimentation process, but in the production process, the partition wall is continuously extruded by the sludge, and the collapse phenomenon occurs, the bricks in the partition wall enter the production water pipe network, which causes the production water to malfunction and brings great disturbance;

[0007] 3. The service life of the 65m production water pump is seriously short, and the maintenance cost is high;

[0008] 4. The running muddy of the production water greatly affects the pipelines, valves and the like, the service life is short, and the maintenance cost is high;

[0009] 5. The production is greatly affected, and some of the above-mentioned 3 and 4 faults will cause systematic shutdown, which is inestimable loss to the production enterprise.

[0010] 6. Because the collection tank is affected by the water level of the high-level tank, the water in the collection tank needs to be discharged sometimes, and the muddy water discharge will cause certain pollution to the environment. UTILITY MODEL CONTENTS

[0011] The application provides a beneficiation plant middling overflow water running muddy disposal system and method, which uses a thickener as a middling running muddy disposal device to dispose of the middling running muddy technical problem, and achieves the effect of clarifying production water.

[0012] To achieve the above technical purposes, the technical scheme adopted by the application is a beneficiation plant middling overflow water running muddy disposal system, which comprises

[0013] A 65-meter thickener for processing magnetic separation tailings, the underflow of which is provided to a bulk flotation device;

[0014] A 65-meter thickener overflow weir for introducing overflow water into the 65-meter thickener;

[0015] A 53-meter thickener for introducing the overflow water from the 65-meter thickener overflow weir;

[0016] A filling or pressure filtration device for introducing the underflow of the 53-meter thickener;

[0017] A 53-meter thickener overflow weir for introducing overflow water into the 53-meter thickener;

[0018] A collection tank for introducing the overflow water from the 53-meter thickener overflow weir;

[0019] A high-level tank for introducing water from the collection tank by a high-pressure water pump;

[0020] A flocculant device for providing a flocculant to the 53-meter thickener.

[0021] As an improved technical solution of the application, the underflow of the 65-meter thickener is pumped to the bulk flotation device by a 65-meter underflow pump.

[0022] As an improved technical solution of the application, the 53-meter thickener introduces the overflow water from the 65-meter thickener overflow weir through a 65-meter overflow water pipe.

[0023] As an improved technical solution of the application, the 65-meter overflow water pipe enters the center of the 53-meter thickener 6, and the slope ratio is not less than 3%.

[0024] As an improved technical solution of the application, the underflow of the 53-meter thickener is pumped to the filling or pressure filtration device by a 53-meter underflow pump.

[0025] As an improved technical solution of the application, the collection tank introduces the overflow water from the 53-meter thickener overflow weir through a 53-meter overflow water pipe.

[0026] As an improved technical solution of the application, the 53-meter overflow water pipe enters the collection tank, and the slope ratio is not less than 3%.

[0027] Beneficial effects

[0028] The present application is mainly aimed at the middling overflow water running disposal scheme, which can solve the problem of middling overflow water running.

[0029] The thickener is used as the middling overflow water running disposal equipment, which can achieve the effect of clarifying production water. At the same time, the thickener for middling overflow water running can supplement flocculants to achieve the settlement of suspended particulate matter, which can better ensure the effect of clarifying production water. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 The connection relationship diagram of the middling overflow water running disposal system in the concentrator is shown.

[0031] In the figure, 1 is a 65-meter thickener, 2 is a 65-meter underflow pump, 3 is a mixed flotation device, 4 is a 65-meter thickener overflow weir, 5 is a 65-meter overflow water pipe, 6 is a 53-meter thickener, 7 is a 53-meter underflow pump, 8 is a filling or pressure filtration device, 9 is a 53-meter thickener overflow weir, 10 is a 53-meter overflow water pipe, 11 is a collection tank, 12 is a high-pressure water pump, 13 is a high-level tank, 14 is a high-level tank water pipeline, 15 is a flocculant device, and 16 is a flocculant supplement pipe. DETAILED DESCRIPTION

[0032] Definitions:

[0033] The 53-meter thickener 6 refers to an equipment for middling overflow water running disposal; 53 meters refer to the diameter of the thickener.

[0034] The 65-meter thickener 1 refers to an equipment for middling concentration treatment; 65 meters refer to the diameter of the thickener.

[0035] The main design logic of the technical solution of the present application is to solve the problem of middling overflow water running. The middling overflow water is settled by the 53-meter thickener 6, and the effect of clarifying production water is achieved.

[0036] The main scheme is as follows: the middling overflow water running disposal system in the concentrator, comprising

[0037] (1) The 65-meter thickener 1 is used for processing magnetic separation tailings, and the underflow thereof is provided to the mixed flotation device; wherein the magnetic separation tailings are derived from the magnetic separation system (such as the process of magnetic separation followed by flotation), and the underflow thereof is a copper-sulfur mixture, which needs to be recovered into copper-sulfur concentrate. In some embodiments, the underflow of the 65-meter thickener 1 is pumped to the mixed flotation device 3 by the 65-meter underflow pump 2.

[0038] (2) The 65-meter thickener overflow weir 4 introduces the overflow water of the 65-meter thickener 1 by pipeline, and the pipeline slope ratio is not less than 3%.

[0039] (3) 53-meter thickener 6, which introduces the overflow water from the 65-meter thickener overflow weir 4; the purpose is to settle the overflow water and slurry, and further achieve the effect of clarifying the production water. In some embodiments, the 53-meter thickener 6 introduces the overflow water from the 65-meter thickener overflow weir 4 through the 65-meter overflow water pipe 5. The thickener has an overflow weir around the periphery, which is equivalent to a large annular ditch that recovers the production water overflowing from the thickener. Above the thickener is a flat surface, and water overflows from the entire flat surface. The overflow weir guides the production water overflowing from the flat surface to the total water outlet, and then the total water outlet pipe is discharged to the designated location. In some embodiments, the 65-meter overflow water pipe 5 enters the central part of the 53-meter thickener 6, and the slope ratio is not less than 3%, which ensures that the overflow water can flow smoothly. If the angle is too small, the overflow water has no pressure, which prevents smooth flow and forms a reverse flow phenomenon.

[0040] (4) Filling or filter pressing device 8, which refers to a filling device or a filter pressing device. The filling device is a deep-cone thickener, and the filter pressing device is a filter press. The underflow of the 53-meter thickener 6 is introduced to treat the generated tailings and realize a tailings-free mine. In some embodiments, the underflow of the 53-meter thickener 6 is pumped to the filling or filter pressing device 8 through the 53-meter underflow pump 7.

[0041] (5) 53-meter thickener overflow weir 9, which introduces the overflow water from the 53-meter thickener 6. The overflow water enters the collection tank 11 through the 53-meter overflow water pipe 10, and the slope ratio is not less than 3%, which ensures that the overflow water can flow smoothly. If the angle is too small, the overflow water has no pressure, which prevents smooth flow and forms a reverse flow phenomenon.

[0042] (6) Collection tank 11, which introduces the overflow water from the 53-meter thickener overflow weir 9 to concentrate and store the overflow water. In some embodiments, the collection tank 11 introduces the overflow water from the 53-meter thickener overflow weir 9 through the 53-meter overflow water pipe 10.

[0043] (7) High-level water tank 13, which introduces the water from the collection tank 11 through the high-pressure water pump 12.

[0044] Example 1

[0045] The magnetic separation tailings enter a 65-meter thickener 1, and the underflow is thickened and then pumped to a mixed flotation 3 by a 65-meter underflow pump 2 for copper-sulfur separation operation; the overflow water of the 65-meter thickener 1 enters a 65-meter thickener overflow weir 4, and then enters a 53-meter thickener 6 through a 65-meter overflow water pipe 5; the underflow of the 53-meter thickener 6 is thickened and then pumped to a filling or filter pressing device 8 for tailings treatment; the overflow water of the 53-meter thickener 6 enters a 53-meter thickener overflow weir 9, and then overflows to a collection tank 11 through a 53-meter overflow water pipe 10; the production water in the collection tank 11 is pumped to a high-level tank 13 by a high-pressure water pump 12, and then flows to each process point through a high-level tank water outlet pipeline 14. A flocculant device 15 enters the central part of the 53-meter thickener 6 through a flocculant supplement pipe 16, and is used to settle the suspended particles in the 65-meter overflow water entering the 53-meter thickener 6.

[0046] Individual process description:

[0047] 1. The 65-meter overflow water pipe 5 enters the central part of the 53-meter thickener 6, and the slope ratio thereof should not be less than 3%, and the slope ratio used in this method is 4%.

[0048] 2. The 53-meter overflow water pipe 10 enters the collection tank 11, and the slope ratio thereof should not be less than 3%, and the slope ratio used in this method is 4%.

[0049] 3. Whether the flocculant device 15 is used depends on whether the 53-meter overflow water is muddy. When the 53-meter overflow water is found to be muddy, the flocculant device 15 is used, and when the 53-meter overflow water is not muddy, the flocculant device 15 is not used, so as to avoid waste.

[0050] 4. The overflow water treated by the flocculant device has no effect on production indexes through production practice.

[0051] 5. There are two main ways for tailings treatment, one is tailings filling, and the other is tailings filter pressing. Daily tailings filling is mainly used, and tailings filter pressing can be used as an alternative.

Claims

1. A system for treating turbidity overflow water from a mineral processing plant, characterized in that, include A 65-meter thickener is used to process magnetic separation tailings, and its underflow is supplied to the mixed flotation equipment; A 65-meter thickener overflow weir is used to introduce the overflow water from the 65-meter thickener. The overflow water from the overflow weir of the 65-meter thickener is introduced into the 53-meter thickener. A filling or pressure filtration device is used to introduce the underflow from the 53-meter thickener; An overflow weir for the 53-meter thickener is used to introduce overflow water into the 53-meter thickener. The overflow water from the 53-meter thickener overflow weir is introduced into the collection pool; A high-level water tank, through which water is introduced into the collection tank by a high-pressure water pump; The flocculant device supplies flocculant to the 53-meter thickener.

2. The ore dressing plant overflow turbidity treatment system according to claim 1, characterized in that, The underflow from the 65-meter thickener is pumped to the mixing flotation equipment via a 65-meter underflow pump.

3. The ore dressing plant overflow turbidity treatment system according to claim 1, characterized in that, The 53-meter thickener introduces overflow water into the overflow weir of the 65-meter thickener through a 65-meter overflow pipe.

4. The ore dressing plant overflow turbidity treatment system according to claim 3, characterized in that, The 65-meter overflow pipe enters the center of the 53-meter thickener, with a slope of not less than 3%.

5. The ore dressing plant overflow turbidity treatment system according to claim 1, characterized in that, The underflow from the 53-meter thickener is pumped to the filling or filter press via a 53-meter underflow pump.

6. The ore dressing plant overflow turbidity treatment system according to claim 1, characterized in that, The water collection pool is connected to the overflow water in the 53-meter thickener overflow weir via a 53-meter overflow pipe.

7. The ore dressing plant overflow turbidity treatment system according to claim 6, characterized in that, The 53-meter overflow pipe enters the collection pool, with a slope of not less than 3%.

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