Concurrent structure of underflow pipes of thickener

Abstract

The utility model discloses a thickener underflow pipe parallel structure which comprises two ore pulp pipelines which are connected in parallel through a pipe combining device, the two ore pulp pipelines are sequentially provided with an ore discharging opening, an underflow first door and an underflow second door from the front end to the rear end of the flowing direction of ore pulp, and the ore pulp pipelines, the pipe combining device and an underflow third door are arranged on the ore pulp pipelines. A pipe combining device inspection opening is formed in the pipe combining device; the two third underflow doors are respectively connected with an underflow 1 # pump and an underflow 2 # pump; and the underflow first door is in a normally open state. A pipeline in the outlet direction of the pipe combining device is provided with three underflow doors, and a pipeline behind the three underflow doors is connected with an underflow pump. The utility model aims to provide an underflow pipe parallel structure of a thickener, which is applied to underflow pipelines of the thickener, realizes parallel connection of inlet pipelines of double underflow pumps, and reduces thickener pressing accidents caused by pipeline blockage.

Description

Technical Field

[0001] The utility model relates to the field of underflow pipelines of concentrators, in particular to a parallel structure of underflow pipes of concentrators. Background Art

[0002] Concentrators are widely used in the treatment of wastewater and waste residue in mining, metallurgy, coal and other industries, and play an important role in improving the concentration of ore pulp and the utilization rate of circulating water. Concentrators are used to increase the concentration of ore pulp. Usually, each concentrator has at least two parallel underflow pumps for conveying underflow ore pulp. Since only one parallel underflow pump is allowed, the underflow pipe of the other one will cause ore pulp deposition and compaction due to long-term blockage, eventually causing pipe blockage. When the parallel pump is used, it cannot be started, causing accidents. Utility Model Content

[0003] The utility model aims to provide a concentrator underflow pipe parallel structure, which is applied to the concentrator underflow pipeline to realize the parallel connection of double underflow pump inlet pipelines and reduce the concentrator pressure accidents caused by pipeline blockage.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] The utility model discloses a parallel structure of underflow pipes of a concentrator, comprising two slurry pipes connected in parallel through a parallel pipe device, on which a lower ore port, a first underflow gate, a second underflow gate, a slurry pipe, the parallel pipe device, and a third underflow gate are arranged one by one from the front end to the rear end of the slurry flow direction; the parallel pipe device is provided with an inspection port of the parallel pipe device; the two third underflow gates are respectively connected to the first underflow pump and the second underflow pump; the first underflow gate is in a normally open state. The third underflow gate is installed on the outlet direction pipeline of the parallel pipe device, and the pipeline behind the third underflow gate is connected to the underflow pump.

[0006] Furthermore, the pipe-joining device is Wear-resistant metal pipe.

[0007] Furthermore, the inspection port of the pipe paralleling device includes two Inspection port.

[0008] Furthermore, the inspection port is sealed with a blind plate.

[0009] Furthermore, one or two lower mine openings are arranged on each slurry pipeline, and an underflow head gate is arranged corresponding to each lower mine opening.

[0010] An operation method of a parallel structure of underflow pipes of a concentrator, in normal production, the underflow first gate and the underflow second gate of the ore discharge port are opened, the underflow third gate on one side of a running underflow pump is opened, and the underflow three gates on the other side are closed, so that the ore discharge ports of the concentrator are discharged at the same time, thereby avoiding the blockage problem caused by long-term non-discharge of ore in individual ore discharge ports;

[0011] When the pump needs to be reversed, it is only necessary to close the corresponding three underflow doors and open the three underflow doors corresponding to the underflow pump that is ready to operate;

[0012] When the pipe-joining device is blocked by debris, close the second underflow door, open the inspection port, clean up the debris, seal the inspection port, open the second underflow door, and the debris cleaning of the pipe-joining device is completed.

[0013] Compared with the prior art, the beneficial technical effects of the utility model are:

[0014] The utility model aims to be used for the underflow pipeline of a concentrator, realize the parallel connection of the inlet pipelines of double underflow pumps, and reduce the accidents of concentrator compression caused by pipeline blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model will be further described below in conjunction with the accompanying drawings.

[0016] Figure 1 This is a front view of the parallel structure of the underflow pipes of the concentrator of the utility model;

[0017] Figure 2 It is a top view of the parallel structure of the underflow pipes of the concentrator of the utility model;

[0018] Explanation of reference numerals: 1, mine opening; 2, bottom flow first gate; 3, bottom flow second gate; 4, slurry pipeline; 5, pipe combining device; 6, inspection port; 7, bottom flow third gate. DETAILED DESCRIPTION

[0019] like Figure 1 and 2 As shown, a parallel structure of underflow pipes of a concentrator comprises: four or two lower ore openings 1, a corresponding number of underflow first gates 2, a second underflow gate 3, a slurry pipeline 4, a pipe combining device 5, an inspection port of the pipe combining device 6, and a third underflow gate 7.

[0020] The concentrator has four or two lower ore ports in parallel, that is, one or two lower ore ports 1 are arranged on one slurry pipeline 4. There is a valve at the bottom of each lower ore port as the bottom flow head gate 2, and the head gate is in a normally open state.

[0021] There are two bottom flow gates 3 on the parallel slurry pipelines. The parallel slurry pipelines enter the pipe combining device 5, which is preferably Wear-resistant metal pipe.

[0022] The pipe paralleling device 5 has a The inspection port 6 is sealed with a blind plate. A bottom flow three-way door 7 is installed on the outlet direction pipeline of the pipe paralleling device 5, and the pipeline behind the bottom flow three-way door 7 is connected to the bottom flow pump, and the two bottom flow three-way doors 7 are connected to the bottom flow 1# pump and the bottom flow 2# pump respectively.

[0023] In this embodiment, two ore lowering ports 1 are arranged on one slurry pipeline 4, that is, the concentrator has four ore lowering ports 1 connected in parallel.

[0024] An operating method of a concentrator underflow pipe parallel structure, comprising:

[0025] During normal production, the four underflow first gates 2 and the two underflow second gates 3 of the ore discharge openings are opened, the underflow third gate 7 on one side of the running underflow pump is opened, and the underflow third gate 7 on the other side is closed, so that the four ore discharge openings of the concentrator can discharge ore at the same time, avoiding the blockage problem caused by long-term non-discharge of ore in individual ore discharge openings.

[0026] When the pump needs to be reversed, it is only necessary to close the corresponding three-way underflow door 7 and open the three-way underflow door 7 corresponding to the underflow pump ready for operation.

[0027] When the pipe-joining device 5 is blocked by debris, the second underflow door 3 is closed, the inspection port 6 is opened, the debris is cleaned, the inspection port 6 is blocked, and the second underflow door 3 is opened, and the debris cleaning of the pipe-joining device 5 is completed.

[0028] The utility model is used on two 70m thickeners and one 60m thickener in the iron selection operation department of Baoshan Mining Company, and has a good use effect.

[0029] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A parallel structure of underflow pipes of a concentrator, characterized in that: The invention comprises two slurry pipelines connected in parallel by a pipe-parallel device, on which a lower mine opening, a first underflow gate, a second underflow gate, a slurry pipeline, the pipe-parallel device and a third underflow gate are arranged one by one from the front end to the rear end in the direction of the slurry flow; an inspection port of the pipe-parallel device is arranged; the two third underflow gates are respectively connected to a 1# underflow pump and a 2# underflow pump; the first underflow gate is in a normally open state; a third underflow gate is installed on the pipe in the outlet direction of the pipe-parallel device, and the pipe behind the third underflow gate is connected to the underflow pump.

2. The parallel structure of underflow pipes of the concentrator according to claim 1 is characterized in that: The pipe combining device is Wear-resistant metal pipe.

3. The parallel structure of underflow pipes of the concentrator according to claim 1 is characterized in that: The inspection port of the parallel pipe device includes two Inspection port.

4. The parallel structure of underflow pipes of the concentrator according to claim 3 is characterized in that: The inspection port is sealed with a blind plate.

5. The parallel structure of underflow pipes of the concentrator according to claim 1 is characterized in that: One or two lower mine openings are arranged on each slurry pipeline, and an underflow head gate is arranged corresponding to each lower mine opening.

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