CN-121972122-A - Full-automatic liquid mixed reagent feeding and dispensing system and method for mineral separation

Abstract

The invention relates to the technical field of mineral processing production, in particular to a full-automatic liquid mixing reagent feeding and dispensing system and a dispensing method for mineral processing, which aim to solve the problems of low manual dispensing efficiency, large error and high safety risk existing in the prior art when mineral processing liquid mixing reagents are fed. The intelligent proportioning controller is controlled by the PLC control module, so that accurate proportioning of the medicament flow is realized, the stability of medicament feeding is ensured by combining the pressure sensor and the liquid level monitoring device, and the problems of low efficiency, large error and high safety risk of the conventional manual dispensing are effectively solved.

Inventors

• WANG GUODONG
• HU CHUNMEI
• WU JING
• HE ZHIQING
• WANG BAIXUN
• WEN YONGBO

Assignees

• 金川集团镍钴股份有限公司

Dates

Publication Date

20260505

Application Date

20260319

Claims (2)

1. 1. The full-automatic liquid mixed reagent feeding and distributing system for mineral processing is characterized by comprising a second reagent storage tank (2), wherein the second reagent storage tank (2) is connected with a first reagent storage tank (1), the tops of the first reagent storage tank (1) and the second reagent storage tank (2) are respectively provided with a nitrogen protection device (7), the first reagent storage tank (1) is connected to a double-pump linkage feeding module (3) through a plurality of discharging pipelines (8), the output end of the double-pump linkage feeding module (3) is connected to a reaction mixing tank (5), the reaction mixing tank (5) is also connected with a flotation reagent feeding pipeline (10), automatic exhaust valves (9) are respectively arranged on the discharging pipelines (8), and the first reagent storage tank (1), the second reagent storage tank (2), the double-pump linkage feeding module (3) and the reaction mixing tank (5) are connected to an intelligent proportioning controller (4); the double-pump linkage feeding module (3) comprises variable metering pumps which are respectively connected with the first medicament storage tank (1) and the second medicament storage tank (2), and a pump body is provided with a flow sensor; the intelligent proportioning controller (4) receives a flow sensor signal through a PLC system and dynamically adjusts the rotation speed of the pump according to a preset proportioning; The top of the reaction mixing tank (5) is provided with a medicament feeding port and a stirring device, and the bottom of the reaction mixing tank is connected with a flotation ore pulp pipeline.
2. 2. The full-automatic feeding system of liquid mixed reagent for mineral separation according to claim 1, further comprising a dispensing method of the full-automatic feeding system of liquid mixed reagent for mineral separation, characterized by mainly comprising the following steps: step 1, presetting target medicament concentration and proportioning parameters by an intelligent proportioning controller (4); step 2, calculating flow values of the first chemical and the second chemical required to be floated by the PLC system according to real-time demand of the beneficiation plant; Step 3, dynamically adjusting the rotating speed of a variable frequency metering pump by adopting a PID algorithm, synchronously starting feeding according to a proportion, and feeding back data in real time by a flow sensor to correct errors, so that the flow errors are less than or equal to +/-1%; Step 4, after the medicaments are mixed, stirring uniformly through a reaction mixing tank (5), and pumping into a flotation pulp system; and 5, recording dispensing data of each time by the system and generating an operation log for quality tracing.

Description

Full-automatic liquid mixed reagent feeding and dispensing system and method for mineral separation Technical Field The invention relates to the technical field of mineral separation production, in particular to a full-automatic liquid mixing reagent feeding and dispensing system and a dispensing method for mineral separation. Background Along with the development of mineral separation technology, the multicomponent mixed medicament such as the mixed collector, the composite inhibitor, the composite dispersant and the like is more mature, and the interaction and the combined action among the medicaments are excellent in improving the mineral separation recovery rate and the product quality, so that the method is widely applied to various metal/nonmetal selections. However, in actual production, the mixed reagent supply of the existing concentrating mill is mostly dependent on manual operation, and has the problems of low precision, large reagent proportion fluctuation caused by the fact that manual metering is easily influenced by experience of operators, poor efficiency, high labor intensity due to the fact that the traditional reagent adding is required to be frequently switched, potential safety hazard, high corrosiveness of liquid reagent, easy health risk caused by contact with skin or vapor inhalation, high energy consumption, and reagent waste caused by the fact that the reagent adding cannot be optimized in real time due to manual control. Patent CN110422635A and CN118323704A disclose material transportation and automatic feeding and dispensing technology of bagged medicament respectively, but do not carry out system design to the special demands of concentrating mill liquid medicament, such as strong corrosiveness, accurate proportioning requirement, etc., and lack many medicament coordinated control modules etc. for the feeding and dispensing efficiency and the precision of liquid mixed medicament receive great influence. Disclosure of Invention The invention provides a full-automatic liquid mixed reagent feeding and dispensing system for mineral processing and a dispensing method, which are used for solving the problems in the background. In order to achieve the above purpose, the present invention adopts the following technical scheme: The utility model provides a full-automatic confession of liquid mixture medicament system for ore dressing, includes the second medicament storage tank, and the second medicament storage tank is connected with first medicament storage tank, and the top of first medicament storage tank and second medicament storage tank all is equipped with nitrogen protection device, and first medicament storage tank is connected to dual pump linkage feed module through a plurality of ejection of compact pipelines, and dual pump linkage feed module's output is connected to the reaction mixing tank, and the reaction mixing tank still is connected with flotation feed pipeline, all is equipped with automatic exhaust valve on the ejection of compact pipeline, just first medicament storage tank, second medicament storage tank, dual pump linkage feed module and reaction mixing tank all are connected to intelligent ratio controller. The double-pump linkage feeding module comprises a variable quantity metering pump which is respectively connected with the first medicament storage tank and the second medicament storage tank, and a pump body is provided with a flow sensor. The intelligent proportioning controller receives a flow sensor signal through the PLC system and dynamically adjusts the rotating speed of the pump according to the preset proportioning. The top of the reaction mixing tank is provided with a reagent feeding hole and a stirring device, and the bottom of the reaction mixing tank is connected with a flotation pulp pipeline. The medicine dispensing method of the full-automatic liquid mixed medicine supply and dispensing system for mineral separation mainly comprises the following steps: and step 1, presetting target medicament concentration and proportioning parameters by an intelligent proportioning controller. And 2, calculating flow values of the first chemical and the second chemical required to be floated by the PLC system according to real-time demand of the beneficiation plant. And 3, dynamically adjusting the rotating speed of the variable frequency metering pump by adopting a PID algorithm, synchronously starting feeding by the variable frequency metering pump according to a proportion, and feeding back data by a flow sensor in real time to correct errors, so that the flow errors are ensured to be less than or equal to +/-1%. And step 4, after the medicaments are mixed, stirring uniformly through a reaction mixing tank, and pumping the mixture into a flotation pulp system. And 5, recording dispensing data of each time by the system and generating an operation log for quality tracing. Further, the bottoms of the first medicament storage tank and the second medicamen