Non-pressure three-product heavy medium cyclone with multi-point medium feeding function
By setting multiple inlets and equipping them with flow regulation devices in a pressureless three-product heavy medium hydrocyclone, the problem of asynchronous pressure and flow rate at the inlets is solved, achieving efficient separation of materials and extending residence time within the hydrocyclone, thus improving separation accuracy.
Patent Information
- Application Number
- CN202423064378.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-12
AI Technical Summary
The existing pressureless three-product heavy medium cyclone separators have only one or two inlets located in the same position, which leads to asynchronous feeding pressure and flow rate, affecting the sorting accuracy.
Design a multi-point feeding pressureless three-product heavy medium cyclone separator with multiple inlets distributed along the axis of the cylinder. Each inlet is connected to a pressure equalization feeder through an inlet pipeline and is equipped with a flow regulating valve and a pressure gauge. The cyclone speed and residence time are adjusted by controlling the inlet pressure.
It improves the sorting accuracy of the hydrocyclone and the residence time of the material in the hydrocyclone, thus enhancing the sorting effect.
Smart Images
Figure CN223570957U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of pressureless three-product cyclone, in particular to a multi-point medium feeding pressureless three-product dense medium cyclone. BACKGROUND
[0002] As known, the pressureless three-product dense medium cyclone utilizes the density layer formed by the action of heavy substance (medium) under the centrifugal force field to separate the raw materials with density difference such as coal and ore, and obtain the concentrate, middlings and tailings respectively. As the main separation equipment of coal preparation plant / mineral processing plant, the separation accuracy directly determines the separation quality of the plant.
[0003] The conditions determining the separation accuracy of the pressureless three-product dense medium cyclone include not only the external working conditions, but also the structural features of the cyclone. Currently, the common pressureless three-product dense medium cyclone generally has only one medium inlet, and some cyclones have two medium inlets. However, the two medium inlets of the cyclone with two medium inlets are located at the same cross-sectional position of the cyclone, and are fed by two pumps, which causes the problem of asynchronous feeding pressure and flow rate. Therefore, the actual application effect is not ideal. SUMMARY
[0004] The utility model discloses a kind of multi-point medium feeding pressureless three-product dense medium cyclones, to solve the technical problems of the prior art, provide a kind of multi-point medium feeding pressureless three-product dense medium cyclone with simple structure, improve its column diameter ratio, prolong the residence time of material in cyclone, improve the separation accuracy of material to be separated.
[0005] The utility model discloses the technical scheme adopted to solve its technical problems is as follows:
[0006] A kind of multi-point medium feeding pressureless three-product dense medium cyclone is provided with pressureless three-product dense medium cyclone, it is characterized in that at least two medium inlets are distributed on the cylinder of the one section cyclone of pressureless three-product dense medium cyclone along the axial direction of cylinder, and each medium inlet is connected with pressure equalizing feeder through medium inlet pipeline.
[0007] The utility model discloses the medium inlet pipeline is connected with flow regulating valve, flow meter and pressure gauge respectively, and the opening of flow regulating valve is adjusted by the parameters of flow meter and pressure gauge.
[0008] The utility model discloses the medium inlet pressure of each medium inlet is greater than the pressure of the point medium inlet after the last medium inlet, and the medium passing through the point is given a promoting force, the cyclone speed is increased, and the residence time of medium in cyclone is increased.
[0009] The medium inlet pressure of each medium inlet is less than the medium inlet pressure of the last medium inlet, to avoid the steady flow phenomenon.
[0010] The utility model discloses due to adopt above -mentioned structure, with simple structure, improve its column diameter ratio, prolong the residence time of material in cyclone, improve the separation precision of the material to be sorted and so on. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 It is the top view of the utility model.
[0012] Figure 2 It is Figure 1 the front view. DETAILED DESCRIPTION
[0013] The utility model is further explained in connection with the drawings:
[0014] As shown in the drawings, a kind of multi-point feeding pressureless three-product dense medium cyclone is equipped with pressureless three-product dense medium cyclone, and it is characterized in that at least two medium inlet ports 2 are distributed on the barrel 1 of the one-stage cyclone of pressureless three-product dense medium cyclone along the axial direction of barrel 1, each medium inlet port 2 is connected with pressure equalizing feeder 4 by medium inlet pipeline 3.
[0015] Further, the medium inlet pipeline 3 is respectively connected with flow regulating valve 5, flow meter 6 and pressure gauge A, and the opening of flow regulating valve 5 is adjusted by the parameters of flow meter 6 and pressure gauge.
[0016] Further, the medium inlet pressure of each medium inlet port 2 is greater than the pressure of the medium inlet port after the previous medium inlet port 2 (i.e. the medium inlet pressure of each medium inlet port is less than or equal to the medium inlet pressure of the previous medium inlet port), which provides a promoting force for the medium passing through the point, increases the cyclone speed and the residence time of medium in cyclone.
[0017] Further, the medium inlet pressure of each medium inlet port 2 is less than the medium inlet pressure of the previous medium inlet port 2, which avoids the occurrence of steady flow phenomenon.
[0018] The equal pressure feeder 4 is a device for distributing a single strand of medium into two or more strands, and a pressure gauge B is installed on the top of the equal pressure feeder 4. The specific structure of the equal pressure feeder 4 is the prior art, and thus is not described in detail. The flow regulating valve 5, the flow meter 6 and the pressure gauge A on the medium inlet pipe 3 connected with each medium inlet 2 are respectively connected with a controller. The pressure gauge B on the equal pressure feeder 4 is also connected with the controller. The controller controls the opening of the flow regulating valve 5 through the readings of the flow meter 6 and the pressure gauge A, and then controls the medium inlet pressure of each medium inlet 2. During operation, the qualified medium suspension is first pumped into the equal pressure feeder 4 by the medium mixing pump. Under the action of the equal pressure feeder 4, the single strand of qualified medium suspension is distributed into two or more strands of qualified medium circulating liquid. The two or more strands of qualified medium circulating liquid enter the cyclone through each medium inlet pipe 3 from different medium inlets 2. During operation, the opening of the flow regulating valve 5 is adjusted according to the values of the pressure gauge B on the equal pressure feeder 4, the flow meter 6 and the pressure gauge A on the medium inlet 2 of the cyclone, and the logical analysis and judgment of the PLC of the controller. Thus, the medium inlet flow and pressure of the two (or more) medium inlets 2 of the cyclone are regulated, the column length of the cyclone is lengthened, the residence time of the material in the cyclone is prolonged, and the separation precision of the cyclone is improved. The equal pressure feeder 4 has the advantages of simple structure, improved column diameter ratio, prolonged residence time of the material in the cyclone, improved separation precision of the material to be separated and the like.
Claims
1. A multi-point feed pressureless three-product heavy medium cyclone, characterized in that it is equipped with a pressureless three-product heavy medium cyclone, and is further characterized in that... The cylinder of a section of the pressureless three-product heavy medium cyclone has at least two inlets distributed along the cylinder axis, and each inlet is connected to a pressure equalization feeder via an inlet pipe.
2. The multi-point feed pressureless three-product heavy medium cyclone according to claim 1, characterized in that... The inlet pipeline is connected to a flow regulating valve, a flow meter, and a pressure gauge, respectively. The opening of the flow regulating valve is adjusted by the parameters of the flow meter and the pressure gauge.
3. A multi-point feed, pressureless three-product heavy medium cyclone according to claim 1, characterized in that... The inlet pressure at each inlet is greater than the pressure at which the previous inlet flows through that inlet.
4. A multi-point feed, pressureless three-product heavy medium cyclone according to claim 1, characterized in that... The inlet pressure of each inlet is less than the inlet pressure of the previous inlet.