Ore concentrate tailing recovery device of tailing thickener

Abstract

The utility model discloses a tailing thickener concentrate tailing recovery device which comprises an ore pulp steady flow groove and a concentrate overflow groove, the ore pulp steady flow groove is composed of an annular bottom plate, a sleeve and an outer ring, and the bottom plate is provided with a vertical blocking partition plate and two sets of steady flow partition plates which are vertically arranged in a crossed mode. The concentrate overflow groove is formed in the upper outer ring of the outer ring of the ore pulp steady flow groove; a scraper device is arranged on the upper portion of the ore pulp flow stabilizing groove. The blocking partition plate is arranged in the flow stabilizing groove, the tailing inlet and the tailing outlet are formed in the two sides of the blocking partition plate respectively, so that ore pulp can reach the tailing outlet only after flowing through the whole flow stabilizing barrel, meanwhile, the flow stabilizing partition plates are arranged at the bottom of the flow stabilizing barrel in a crossed mode, the flow speed of the ore pulp is reduced, and the ore pulp can be layered in the ore pulp flow stabilizing groove; the concentrate floats on the surface layer; and the concentrate liquid on the surface layer is scraped into the concentrate overflow groove through the scraping plate to be collected, and the concentrate recycling rate is greatly increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of beneficiation equipment, and particularly relates to a concentrate tailing recovery device for a tailings thickener. Background Technique

[0002] A tailings thickener is a solid-liquid separation device dedicated to treating ore tailings, and is commonly used in the beneficiation flotation process. Its working principle mainly relies on separating tailings from water by means of gravitational sedimentation. The traditional tailings thickener can only simply separate ore from water, and cannot recover the concentrate mixed in the tailings, resulting in some concentrate being directly discharged into the tailings pond, thereby reducing the concentrate recovery rate, causing waste of concentrate, and reducing the beneficiation efficiency.

[0003] Some existing tailings thickeners are provided with a flow stabilizer cylinder at the tailings inlet to extend the residence time of the pulp in the thickening tank, so that the pulp flow can flow in an orderly stratified manner. However, the flow stabilizer cylinder of this kind of tailings thickener is only a hollow cylinder that penetrates up and down, with a simple structure. Once the phenomenon of concentrate tailing occurs, it is impossible to effectively recover and utilize the concentrate, and can only let it precipitate with the tailings and then be discharged into the tailings pond. Therefore, how to solve the problem of tailing during the thickening process has become one of the problems that need to be solved urgently at present. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a concentrate tailing recovery device for a tailings thickener to solve the problem of concentrate tailing mentioned in the above background technique and improve the concentrate recovery rate.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A concentrate tailing recovery device for a tailings thickener is sleeved on the upper part of the main shaft of the thickener, and includes a pulp flow stabilizer tank and a concentrate overflow tank. The pulp flow stabilizer tank is in the shape of a circular ring cylinder and is fixedly connected to the thickener truss arranged above the thickener. It is composed of an annular bottom plate, a sleeve and an outer ring. The sleeve is sleeved on the shaft body of the main shaft of the thickener and is in clearance fit with the main shaft without rotating with the main shaft.

[0006] The concentrate overflow tank is arranged on the outer upper ring of the outer ring of the pulp flow stabilizer tank and is in the shape of a circular ring cylinder with a bottom. Two concentrate outlets are evenly arranged at the bottom and are connected to an external concentrate pipe.

[0007] A vertical blocking partition is provided on the bottom plate of the pulp flow stabilizer tank, and the blocking partition connects the sleeve and the outer ring of the pulp flow stabilizer tank. Two groups of cross-erected flow stabilizer partitions are also provided on the bottom plate of the pulp flow stabilizer tank. Tailings inlets and tailings outlets are respectively opened on the bottom plates on both sides of the blocking partition and are connected to an external tailings input pipe and an output pipe respectively.

[0008] The upper part of the pulp steady flow tank is provided with a scraper device, which includes a connecting ring and a scraper. The connecting ring is installed above the sleeve and fixedly connected to the main shaft, driving the scraper device to rotate with the main shaft. There are multiple scrapers, which are evenly distributed in a spiral and radial pattern on the ring body of the connecting ring, and the length extends above the outer ring.

[0009] Further, the steady flow partition plates include 6 first steady flow partition plates and 5 second steady flow partition plates. One end of the 6 first steady flow partition plates is connected to the sleeve, the bottom edge is connected to the bottom plate, and the other end extends to the middle of the pulp steady flow tank. One end of the 5 second steady flow partition plates is connected to the outer ring, the bottom edge is connected to the bottom plate, and the other end extends to the middle of the pulp steady flow tank. The second steady flow partition plates and the first steady flow partition plates are arranged at staggered intervals and evenly distributed, and one second steady flow partition plate is arranged between every two first steady flow partition plates.

[0010] Further, the 6 first steady flow partition plates 5 are symmetrically distributed with the blocking partition plate 4 as the center line.

[0011] Further, the height of both the first steady flow partition plate and the second steady flow partition plate is 0.8m, and the length is greater than half of the distance between the sleeve and the outer ring.

[0012] Further, the outer ring of the pulp steady flow tank has a diameter of 4m, the sleeve has a diameter of 1m, and the depth is 1.2m, and the inside is coated with wear-resistant coating.

[0013] Further, the inner diameter of the concentrate overflow tank is 4m, the outer diameter is 4.5m, and the depth is 0.5m, and the inside is coated with wear-resistant coating.

[0014] Further, the height of the blocking partition plate is 1.1m.

[0015] Further, there are 6 scrapers in total, with a height of 0.3m, a thickness of 6mm, and made of carbon steel.

[0016] Compared with the prior art, a tailings thickener concentrate tail running recovery device provided by the present utility model has at least the following beneficial effects:

[0017] (1) By arranging a blocking partition plate in the steady flow tank and respectively arranging the tailings inlet and outlet on both sides of the blocking partition plate, the present utility model enables the pulp to flow through the entire steady flow cylinder to reach the tailings outlet. At the same time, by cross-arranging steady flow partition plates at the bottom of the steady flow cylinder, the flow rate of the pulp is reduced, so that the pulp can be stratified in the pulp steady flow tank, and the concentrate floats on the surface layer;

[0018] (2) The utility model improves the recovery and utilization rate of concentrate greatly by arranging a scraper device above the pulp steady flow tank and a concentrate overflow tank outside the pulp steady flow tank, and scraping the concentrate liquid on the surface layer into the concentrate overflow tank for collection by the scraper.

[0019] (3) The scraper device of the utility model is connected with the main shaft of the thickener, and the scraper is driven to rotate by the rotation of the main shaft for concentrate collection. There is no need to set external power, the device structure is simple, the installation is convenient, and it is easy to promote. Description of the Drawings

[0020] Figure 1 is the overall schematic diagram of one direction of the utility model;

[0021] Figure 2 is the schematic diagram of another direction of the utility model;

[0022] Figure 3 is the top view of the utility model;

[0023] Figure 4 is the bottom view state diagram of the utility model.

[0024] In the figure: 1-main shaft, 2-pulp steady flow tank, 21-annular bottom plate, 22-sleeve, 23-outer ring, 24-tailings inlet, 25-tailings outlet, 3-concentrate overflow tank, 31-concentrate outlet, 4-blocking partition plate, 5-first steady flow partition plate, 6-second steady flow partition plate, 7-scraper device, 71-connecting ring, 72-scraper. Detailed Embodiment

[0025] The following further describes the utility model in conjunction with embodiments.

[0026] Please refer to Figures 1-4 , the utility model provides a tailings thickener concentrate runaway recovery device, which is sleeved on the upper part of the thickener main shaft 1, and includes a pulp steady flow tank 2 and a concentrate overflow tank 3. The pulp steady flow tank 2 is in a circular cylindrical shape, and is fixedly connected with a thickener truss (not shown in the figure) arranged above the thickener. It is composed of an annular bottom plate 21, a sleeve 22 and an outer ring 23. The sleeve 22 is sleeved on the shaft body of the thickener main shaft 1 and is in clearance fit with the main shaft 1 and does not rotate with the main shaft 1. In this embodiment, the diameter of the outer ring 23 of the pulp steady flow tank 2 is 4m, the diameter of the sleeve 22 is 1m, and the depth is 1.2m, and wear-resistant spraying is carried out inside.

[0027] The concentrate overflow tank 3 is arranged on the upper outer ring of the outer ring 23 of the pulp steady flow tank 2, and is also in a circular cylindrical shape with a bottom. In this embodiment, the inner diameter of the concentrate overflow tank 3 is 4m, the outer diameter is 4.5m, and the depth is 0.5m. Wear-resistant spraying is carried out inside, and two concentrate outlets 31 are evenly arranged at the bottom and are connected with an external concentrate pipe (not shown in the figure).

[0028] On the bottom plate 21 of the pulp steady flow tank 2, there is an erected blocking partition plate 4. The blocking partition plate 4 connects the sleeve 22 and the outer ring 23 of the pulp steady flow tank 2, with a height of 1.1 m, used to control the flow direction of the pulp.

[0029] On the bottom plate 21 of the pulp steady flow tank 2, there are also two groups of cross-erected steady flow partition plates, namely 6 first steady flow partition plates 5 and 5 second steady flow partition plates 6. One end of the 6 first steady flow partition plates 5 is connected to the sleeve 22, the bottom edge is connected to the bottom plate 21, and the other end extends to the middle of the pulp steady flow tank 2. The 6 first steady flow partition plates 5 are symmetrically distributed with the blocking partition plate 4 as the midline.

[0030] One end of the 5 second steady flow partition plates 6 is connected to the outer ring 23, the bottom edge is connected to the bottom plate 21, and the other end extends to the middle of the pulp steady flow tank 2. The second steady flow partition plates 6 and the first steady flow partition plates 5 are arranged in a staggered and evenly spaced manner, that is, except for the position of the blocking partition plate 4, there is one second steady flow partition plate 6 between every two first steady flow partition plates 5.

[0031] In this embodiment, the heights of the first steady flow partition plate 5 and the second steady flow partition plate 6 are both 0.8 m, and the lengths are both greater than half of the distance between the sleeve 22 and the outer ring 23.

[0032] On the bottom plate 21, tailing inlets 24 and tailing outlets 25 are respectively opened on both sides of the blocking partition plate 4 and at the middle positions between adjacent two first steady flow partition plates 5 (the positions of the tailing inlets 24 and the tailing outlets 25 can be swapped), and are respectively connected to an external tailing input pipe and an output pipe (not shown in the figure).

[0033] On the upper part of the pulp steady flow tank 2, there is a scraper device 7. The scraper device 7 includes a connecting ring 71 and scrapers 72. The connecting ring 71 is installed above the sleeve 22 and is fixedly connected to the main shaft 1, driving the scraper device 7 to rotate with the main shaft. There are 6 scrapers 72 in total, which are evenly distributed in a spiral and radial manner on the ring body of the connecting ring 71, and the length extends above the outer ring 23. In this embodiment, the scraper height is 0.3 m, the thickness is 6 mm, and the material is carbon steel.

[0034] This solution has the following working process: The pulp enters the pulp steady flow tank 2 from the tailing inlet 24, is blocked by the blocking partition plate 4, and can only reach the tailing outlet 25 along the channel between the second steady flow partition plate 6 and the first steady flow partition plate 5. After being blocked by the steady flow partition plates multiple times, the flow rate of the pulp in the pulp steady flow tank 2 slows down. Due to the addition of a flocculant, the impurity tailings in the pulp will settle, and the foamy concentrate liquid will float on the surface. At this time, the scraper device 7 rotates, and the surface pulp liquid is gradually scraped into the concentrate overflow tank 3 through the scrapers 72 and discharged and collected through the concentrate outlet 31, so as to reduce the loss of the concentrate.

[0035] The above are only the preferred embodiments of the present utility model, and do not impose any limitation on the technical scope of the present utility model. Therefore, any minor modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present utility model still fall within the protection scope of the present utility model.

Claims

1. A tailings thickener concentrate tail running recovery device, which is sleeved on the upper part of the thickener main shaft, and is characterized in that: It includes a pulp steady-flow tank and a concentrate overflow tank. The pulp steady-flow tank is in the shape of a circular cylinder and is fixedly connected to the thickener truss arranged above the thickener. It consists of an annular bottom plate, a sleeve, and an outer ring. The sleeve is sleeved on the shaft of the thickener main shaft and is in clearance fit with the main shaft without rotating with the main shaft. The concentrate overflow tank is arranged on the outer upper circle of the outer ring of the pulp steady-flow tank. It is in the shape of a bottomed circular cylinder. Two concentrate outlets are evenly arranged at the bottom and are connected to the external concentrate pipe. A vertical blocking partition is provided on the bottom plate of the pulp steady-flow tank. The blocking partition connects the sleeve and the outer ring of the pulp steady-flow tank. Two groups of cross-vertical steady-flow partitions are also provided on the bottom plate of the pulp steady-flow tank. A tailings inlet and a tailings outlet are respectively opened on the bottom plates on both sides of the blocking partition and are connected to the external tailings input pipe and output pipe respectively. A scraper device is provided on the upper part of the pulp steady-flow tank. The scraper device includes a connecting ring and scrapers. The connecting ring is installed above the sleeve and is fixedly connected to the main shaft, driving the scraper device to rotate with the main shaft. There are multiple scrapers, which are evenly arranged in a spiral and radial pattern on the ring body of the connecting ring, and the length extends above the outer ring.

2. The tailing thickener concentrate tail running recovery device according to claim 1, characterized in that: The steady-flow partitions include 6 first steady-flow partitions and 5 second steady-flow partitions. One end of the 6 first steady-flow partitions is connected to the sleeve, the bottom edge is connected to the bottom plate, and the other end extends to the middle of the pulp steady-flow tank. One end of the 5 second steady-flow partitions is connected to the outer ring, the bottom edge is connected to the bottom plate, and the other end extends to the middle of the pulp steady-flow tank. The second steady-flow partitions are staggeredly and evenly arranged with the first steady-flow partitions, and one second steady-flow partition is arranged between every two first steady-flow partitions.

3. The tailing thickener concentrate tail running recovery device according to claim 2, characterized in that: The 6 first steady-flow partitions (5) are symmetrically distributed with the blocking partition (4) as the center line.

4. The tailing thickener concentrate tail running recovery device according to claim 2, characterized in that: The height of both the first steady-flow partition and the second steady-flow partition is 0.8m, and the length is greater than half of the distance between the sleeve and the outer ring.

5. A tailings thickener concentrate tail running recovery device according to claim 1, characterized in that: The outer ring of the pulp steady-flow tank has a diameter of 4m, the sleeve has a diameter of 1m, and the depth is 1.2m. Wear-resistant spraying is done inside.

6. The tailing thickener concentrate tail running recovery device according to claim 1, characterized in that: The inner diameter of the concentrate overflow tank is 4m, the outer diameter is 4.5m, the depth is 0.5m, and wear-resistant spraying is done inside.

7. The concentrate tail running-back recovery device for a tailings thickener according to claim 1, characterized in that: The height of the blocking partition is 1.1m.

8. A tailings thickener concentrate tail running recovery device according to claim 1, characterized in that: There are 6 scrapers in total, with a height of 0.3m and a thickness of 6mm, made of carbon steel.

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