Venturi flotation dosing system

Abstract

The utility model belongs to the technical field of preparation equipment, and particularly relates to a Venturi flotation dosing system, which comprises an ore pulp pipeline, a medicament box, a concentration meter, an ore pulp flowmeter and a control system, and is characterized in that the ore pulp pipeline is a Venturi tube and comprises a straight tube section and a throat tube section, and two ends of the throat tube section are connected with the straight tube section through contraction sections; the concentration meter and the ore pulp flow meter are installed on the ore pulp pipeline, the agent box is connected with a throat pipe section of the ore pulp pipeline through the agent pipe, the agent flow meter and the electric control valve are installed on the agent pipe, and the concentration meter, the ore pulp flow meter, the agent flow meter and the electric control valve are connected with the control system. According to the utility model, a medicament pump is not used, so that investment and energy consumption are reduced, and fault points are reduced; by utilizing the characteristics of high flow speed and low pressure of the Venturi tube, the medicament in the medicament box is automatically sucked into the ore pulp pipeline through the medicament tube, and the dosage can be automatically adjusted according to the flow of the ore pulp in the pipeline.

Description

Technical Field

[0001] The utility model belongs to the technical field of ore dressing equipment, in particular to a Venturi flotation dosing system. Background Art

[0002] The grade of ore directly affects the economic benefits of steel companies, and the flotation production process is the most effective means of production to directly improve the grade of concentrate. The reasonable flow rate of reagents is an important factor affecting the grade of concentrate. At present, there are many applications of flotation automatic dosing systems. For example, the application number is: CN202110446180.6, and the name is an invention patent application for an automatic flotation dosing system. The control system realizes the dosing of the flotation system through a metering pump; the application number is: CN201721395391.7, and the name is an invention patent for an automatic flotation dosing system for coal flotation. The control system controls the reagent pump through a frequency converter to realize the dosing of the flotation system. However, both of them realize the automatic dosing of the dosing system through a pump, which has a complex structure, high investment, increased energy consumption in operation, and increased failure points. Summary of the invention

[0003] The utility model aims to provide a Venturi flotation dosing system, which does not use a dosing pump and can automatically adjust the dosing amount according to the flow rate of the ore pulp in the pipeline.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] The utility model of the Venturi flotation dosing system comprises a slurry pipeline, a reagent box I, a reagent box II, a reagent box III, a concentration meter, a slurry flow meter and a control system, and is characterized in that: the slurry pipeline is a Venturi tube, comprising a straight pipe section and a throat section I, a throat section II, and a throat section III, the throat section I, the throat section II, and the throat section III are connected to the straight pipe section at both ends through a contraction section, the concentration meter and the slurry flow meter are respectively installed on the slurry pipeline, the reagent box I is connected to the throat section I of the slurry pipeline through the reagent pipe I, the reagent box II The reagent box III is connected to the throat section II of the slurry pipeline through the reagent pipe II, and the reagent flow meter I and the electric regulating valve I are installed on the reagent pipe I, and the reagent flow meter II and the electric regulating valve II are installed on the reagent pipe II. The reagent flow meter III and the electric regulating valve III are installed on the reagent pipe III. The concentration meter, slurry flow meter, reagent flow meter I, reagent flow meter II, reagent flow meter III, electric regulating valve I, electric regulating valve II, and electric regulating valve III are connected to the control system.

[0006] Advantages of the utility model:

[0007] The venturi flotation dosing system of the utility model does not use a dosing pump, thus reducing investment and energy consumption and reducing failure points; utilizing the characteristics of the venturi tube with fast flow rate and low pressure, the dosing agent in the dosing box is automatically sucked into the ore slurry pipeline through the dosing tube, and when the ore slurry flow in the ore slurry pipeline increases, the negative pressure of the throat section also increases, and the dosing agent sucked into the ore slurry pipeline also increases; when the ore slurry flow in the ore slurry pipeline decreases, the negative pressure of the throat section also decreases, and the dosing agent sucked into the ore slurry pipeline also decreases; the system can automatically adjust the dosing amount according to the flow of the ore slurry in the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0009] The specific implementation of the present utility model is further described below in conjunction with the accompanying drawings.

[0010] like Figure 1 As shown, the Venturi flotation dosing system of the utility model comprises a slurry pipeline 1, a reagent box I71, a reagent box II72, a reagent box III73, a concentration meter 8, a slurry flow meter 9 and a control system 6, characterized in that: the slurry pipeline 1 is a Venturi tube, comprising a straight pipe section and a throat section I21, a throat section II22, and a throat section III23, the throat sections I21, II22, and III23 are connected to the straight pipe section at both ends through contraction sections, the concentration meter 8 and the slurry flow meter 9 are respectively installed on the slurry pipeline 1, the reagent box I71 is connected to the throat section I21 of the slurry pipeline 1 through the reagent pipe I51, and the reagent box II72 is connected to the throat section I21 of the slurry pipeline 1 through the reagent pipe I51. The reagent pipe II 52 is connected to the throat section II 22 of the slurry pipeline 1, the reagent box III 73 is connected to the throat section III 23 of the slurry pipeline 1 through the reagent pipe III 53, the reagent pipe I 51 is installed with a reagent flow meter I 31 and an electric regulating valve I 41, the reagent pipe II 52 is installed with a reagent flow meter II 32 and an electric regulating valve II 42, the reagent pipe III 53 is installed with a reagent flow meter III 33 and an electric regulating valve III 43, the concentration meter 8, slurry flow meter 9, reagent flow meter I 31, reagent flow meter II 32, reagent flow meter III 33, electric regulating valve I 41, electric regulating valve II 42, electric regulating valve III 43 are connected to the control system 6.

[0011] The venturi flotation dosing system of the utility model does not use a dosing pump, thus reducing investment and energy consumption and reducing failure points; utilizing the characteristics of the venturi tube with fast flow rate and low pressure, the dosing agent in the dosing agent box is automatically sucked into the ore pulp pipeline 1 through the dosing agent tube, and when the ore pulp flow in the ore pulp pipeline 1 increases, the negative pressure of the throat section also increases, and the dosing agent sucked into the ore pulp pipeline 1 also increases; when the ore pulp flow in the ore pulp pipeline 1 decreases, the negative pressure of the throat section also decreases, and the dosing agent sucked into the ore pulp pipeline 1 also decreases; the system can automatically adjust the dosing amount according to the flow rate of the ore pulp in the pipeline.

Claims

1. A Venturi flotation dosing system, comprising a slurry pipeline, a reagent box I, a reagent box II, a reagent box III, a concentration meter, a slurry flow meter and a control system, characterized in that: The slurry pipeline is a Venturi tube, including a straight pipe section and a throat section I, a throat section II, and a throat section III. The two ends of the throat section I, the throat section II, and the throat section III are respectively connected to the straight pipe section through a contraction section. The concentration meter and the slurry flow meter are respectively installed on the slurry pipeline. The reagent box I is connected to the throat section I of the slurry pipeline through the reagent pipe I, the reagent box II is connected to the throat section II of the slurry pipeline through the reagent pipe II, and the reagent box III It is connected to the throat section III of the slurry pipeline through the reagent pipe III, the reagent pipe I is installed with a reagent flowmeter I and an electric regulating valve I, the reagent pipe II is installed with a reagent flowmeter II and an electric regulating valve II, the reagent pipe III is installed with a reagent flowmeter III and an electric regulating valve III, and the concentration meter, slurry flowmeter, reagent flowmeter I, reagent flowmeter II, reagent flowmeter III, electric regulating valve I, electric regulating valve II, and electric regulating valve III are connected to the control system.

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