Intelligent flotation dosing device

Abstract

The utility model provides an intelligent flotation dosing device. The intelligent flotation dosing device comprises an ore pulp detection mechanism, a dosing mechanism and a PLC (Programmable Logic Controller), the ore pulp detection mechanism comprises a density transmitter and an ore pulp flow meter, the density transmitter is used for detecting the concentration of ore pulp introduced into the flotation machine, and the ore pulp flow meter is used for detecting the flow of the ore pulp introduced into the flotation machine in the flotation technological process; the dosing mechanism comprises a foaming agent dosing pump, a foaming agent flowmeter, a collecting agent dosing pump, a collecting agent flowmeter, a water adding pump, a clear water flowmeter and an emulsifying pump; the emulsifying pump is used for mixing and emulsifying a foaming agent conveyed by the foaming agent dosing pump, a collecting agent conveyed by the collecting agent dosing pump and clear water conveyed by the water adding pump; the PLC is electrically connected with the density transmitter, the ore pulp flow meter, the foaming agent flow meter, the collecting agent flow meter, the clear water flow meter, the foaming agent dosing pump, the collecting agent dosing pump and the water adding pump, and data collection and control are achieved. According to the utility model, the automatic control of flotation dosing is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of flotation, in particular to an intelligent flotation dosing device. Background Art

[0002] Flotation is one of the important mineral processing methods. Most coal mines, metal and non-metal mines use flotation technology. The addition of flotation reagents is an important part of the flotation production process. The amount and accuracy of the addition directly affect the quantity, quality and benefits of the product.

[0003] In the prior art, the flotation process is to manually control the dosing valve, and the amount of dosing depends entirely on the worker's experience. If the amount of dosing is too much, the agent cannot be fully emulsified, which wastes the agent and increases the cost. If the amount of dosing is too little, the floated product is small, and it is impossible to track the change of the incoming material in real time to adjust the amount of dosing agent. In addition, the two agents are not fully emulsified when added to the flotation system, the effect is not good, and the agent is wasted. Utility Model Content

[0004] In view of the defects in the prior art, the utility model provides an intelligent flotation dosing device to realize automatic control of flotation dosing, and can adjust the dosage of the added agent in real time according to the change of the incoming material amount, thereby realizing automatic and precise control of the dosage of the agent, and at the same time can fully emulsify the agent, thereby ensuring the flotation effect and saving the dosage of the agent.

[0005] The utility model provides an intelligent flotation dosing device, comprising:

[0006] A slurry detection mechanism, the slurry detection mechanism includes a density transmitter and a slurry flow meter, the density transmitter is used to detect the concentration of the slurry entering the flotation machine, and the slurry flow meter is used to detect the flow of the slurry entering the flotation machine;

[0007] A dosing mechanism, the dosing mechanism includes a foaming agent dosing pump, a foaming agent flowmeter, a collector dosing pump, a collector flowmeter, a water adding pump, a clean water flowmeter and an emulsification pump, the foaming agent dosing pump is used to deliver the foaming agent to the emulsification pump, the foaming agent flowmeter is used to measure the foaming agent delivered by the foaming agent dosing pump, the collector dosing pump is used to deliver the collector to the emulsification pump, the collector flowmeter is used to measure the collector delivered by the collector dosing pump, the water adding pump is used to deliver clean water to the emulsification pump, the clean water flowmeter is used to measure the clean water delivered by the water adding pump, and the emulsification pump is used to mix and emulsify the delivered foaming agent, collector and clean water;

[0008] and a PLC controller, wherein the PLC controller is electrically connected to the density transmitter, the slurry flowmeter, the frother flowmeter, the collector flowmeter, the clean water flowmeter, the frother dosing pump, the collector dosing pump and the water dosing pump respectively.

[0009] Furthermore, the dosing mechanism also includes a foaming agent tank, a collecting agent tank and a clean water tank;

[0010] The bottom of the foaming agent tank is provided with a foaming agent supply pipe connected to the input end of the foaming agent dosing pump, the output end of the foaming agent dosing pump is provided with a foaming agent output pipe, and the foaming agent flowmeter is connected to the foaming agent output pipe;

[0011] The bottom of the collector tank is provided with a collector supply pipe connected to the input end of the collector dosing pump, the output end of the collector dosing pump is provided with a collector output pipe, and the collector flowmeter is connected to the collector output pipe;

[0012] The bottom of the clean water tank is provided with a water supply pipe connected to the input end of the water adding pump, the output end of the water adding pump is provided with a water delivery pipe, and the clean water flow meter is connected to the water delivery pipe;

[0013] The foaming agent output pipe and the collecting agent output pipe are respectively connected to the drug-adding main pipe, and the drug-adding main pipe and the water delivery pipe are connected to the input end of the emulsification pump after merging.

[0014] Furthermore, the dosing mechanism also includes a spare dosing pump, the input end of the spare dosing pump is respectively connected to the foaming agent supply pipe and the collector supply pipe through two spare input pipelines, and the output end of the spare dosing pump is respectively connected to the foaming agent output pipe and the collector output pipe through two spare output pipelines, and valves are provided at both ends of the foaming agent dosing pump, both ends of the collector dosing pump, both ends of the spare dosing pump, the two spare input pipelines, and the two spare output pipelines.

[0015] Furthermore, the dosing mechanism also includes a first safety valve connected in parallel to both ends of the foaming agent dosing pump through a pipeline, a second safety valve connected in parallel to both ends of the collector dosing pump through a pipeline, and a third safety valve connected in parallel to both ends of the standby dosing pump through a pipeline.

[0016] Furthermore, a first back-pressure valve is connected in series to the foaming agent output pipe, and a second back-pressure valve is connected in series to the collecting agent output pipe.

[0017] Furthermore, the dosing mechanism also includes a first pulse damper connected to the output end of the foaming agent dosing pump, a second pulse damper connected to the output end of the collector dosing pump, and a third pulse damper connected to the output end of the standby dosing pump.

[0018] Furthermore, the foaming agent dosing pump, collector dosing pump and spare dosing pump all use diaphragm metering pumps, the water adding pump uses a centrifugal pump, the slurry flowmeter and clean water flowmeter both use electromagnetic flowmeters, and the foaming agent flowmeter and collector flowmeter both use worm gear flowmeters.

[0019] Furthermore, magnetic flap level gauges are provided outside the foaming agent tank, the collecting agent tank and the clean water tank.

[0020] Furthermore, it also includes a control cabinet and a base, the PLC controller is installed in the control cabinet, and the control cabinet and the dosing mechanism are both fixedly installed on the base.

[0021] The beneficial effects of the utility model are:

[0022] (1) The present application can add and measure the frother through a frother dosing pump and a frother flowmeter, add and measure the collector through a collector dosing pump and a collector flowmeter, add and measure the clean water through a water adding pump and a clean water flowmeter, and the frother, collector and clean water are proportionally introduced into an emulsification pump for sufficient mixing and emulsification, and then transported to each dosing point of the flotation machine, thereby realizing automatic control of flotation dosing.

[0023] (2) During the dosing process, the two reagents can be fully mixed and emulsified, ensuring the flotation effect and saving the amount of reagents.

[0024] (3) During the dosing process, the density transmitter can be used to detect the concentration of the slurry entering the flotation machine in real time, while the slurry flow meter can be used to detect the flow of the slurry entering the flotation machine in real time. The system can track the changes in the amount of incoming materials in real time and automatically adjust the dosage of the reagent, thereby realizing automatic and precise control of the dosage, ensuring the flotation effect and saving the dosage of the reagent. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0026] Figure 1 This is a schematic diagram of the structure of the medicine adding mechanism in the embodiment of the utility model;

[0027] Figure 2 This is a schematic diagram of the piping principle of the dosing mechanism in the embodiment of the utility model;

[0028] Figure 3 This is a schematic diagram of the electrical system of an embodiment of the utility model.

[0029] Reference numerals:

[0030] 100-foaming agent dosing pump; 110-foaming agent flowmeter; 120-first safety valve; 130-first back pressure valve; 140-first pulse damper; 200-collector dosing pump; 210-collector flowmeter; 220-second safety valve; 230-second back pressure valve; 240-second pulse damper; 300-water pump; 310-clean water flowmeter; 400-emulsification pump; 500-foaming agent tank; 510- Foaming agent supply pipe; 600-collector tank; 610-collector supply pipe; 700-clean water tank; 710-water pipe; 800-dosing main pipe; 810-foaming agent output pipe; 820-collector output pipe; 900-spare dosing pump; 910-spare input pipeline; 920-spare output pipeline; 930-third safety valve; 940-third pulse damper; 1000-magnetic flap level gauge; 1100-base. DETAILED DESCRIPTION

[0031] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0032] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which the utility model belongs.

[0033] like Figure 1-Figure 3 As shown, an embodiment of the utility model provides an intelligent flotation dosing device, including a slurry detection mechanism, a dosing mechanism, a host computer and a slave computer (PLC controller).

[0034] The slurry detection mechanism includes a density transmitter and a slurry flowmeter. The density transmitter is used to detect the concentration of the slurry entering the flotation machine, and the slurry flowmeter is used to detect the flow of the slurry entering the flotation machine. The slurry flowmeter in this embodiment adopts an electromagnetic flowmeter.

[0035] The dosing mechanism includes a foaming agent dosing pump 100, a foaming agent flow meter 110, a collector dosing pump 200, a collector flow meter 210, a water adding pump 300, a clean water flow meter 310 and an emulsifying pump 400. The foaming agent dosing pump 100 is used to deliver the foaming agent to the emulsifying pump 400. The foaming agent dosing pump 100 specifically adopts a diaphragm metering pump. The foaming agent flow meter 110 is used to measure the foaming agent delivered by the foaming agent dosing pump 100. The foaming agent flow meter 110 specifically adopts a worm flow meter. The collector dosing pump 200 is used to deliver the foaming agent to the emulsifying pump 400. The collector is transported. The collector dosing pump 200 specifically adopts a diaphragm metering pump. The collector flowmeter 210 is used to measure the collector transported by the collector dosing pump 200. The collector flow rate specifically adopts a worm flowmeter. The water adding pump 300 is used to transport clean water to the emulsification pump 400. The water adding pump 300 specifically adopts a centrifugal pump. The clean water flowmeter 310 is used to measure the clean water transported by the water adding pump 300. The clean water flowmeter 310 specifically adopts an electromagnetic flowmeter. The emulsification pump 400 is used to mix and emulsify the transported foaming agent, collector and clean water.

[0036] In this embodiment, refer to Figure 1 and Figure 2 The dosing mechanism further includes a foaming agent tank 500, a collector tank 600 and a clean water tank 700. The foaming agent tank 500 stores a foaming agent, the collector tank 600 stores a collector, and the clean water tank 700 stores clean water. In order to reflect the liquid levels in the foaming agent tank 500, the collector tank 600 and the clean water tank 700, magnetic flap level gauges 1000 are provided outside the foaming agent tank 500, the collector tank 600 and the clean water tank 700.

[0037] The bottom of the foaming agent tank 500 is provided with a foaming agent supply pipe 510 connected to the input end of the foaming agent dosing pump 100, the output end of the foaming agent dosing pump 100 is provided with a foaming agent output pipe 810, and the foaming agent flowmeter 110 is connected to the foaming agent output pipe 810. The bottom of the collector tank 600 is provided with a collector supply pipe 610 connected to the input end of the collector dosing pump 200, the output end of the collector dosing pump 200 is provided with a collector output pipe 820, and the collector flowmeter 210 is connected to the collector output pipe 820. The bottom of the clean water tank 700 is provided with a water supply pipe connected to the input end of the water adding pump 300, the output end of the water adding pump 300 is provided with a water delivery pipe 710, and the clean water flowmeter 310 is connected to the water delivery pipe 710. The foaming agent output pipe 810 and the collecting agent output pipe 820 are respectively connected to the dosing main pipe 800 , and the dosing main pipe 800 and the water delivery pipe 710 are connected to the input end of the emulsification pump 400 after merging.

[0038] Preferably, the dosing mechanism also includes a spare dosing pump 900, which is specifically a diaphragm metering pump. The input end of the spare dosing pump 900 is respectively connected to the foaming agent supply pipe 510 and the collector supply pipe 610 through two spare input pipelines 910, and the output end of the spare dosing pump 900 is respectively connected to the foaming agent output pipe 810 and the collector output pipe 820 through two spare output pipelines 920. Valves are provided at both ends of the foaming agent dosing pump 100, both ends of the collector dosing pump 200, both ends of the spare dosing pump 900, the two spare input pipelines 910, and the two spare output pipelines 920.

[0039] During normal operation, the foaming agent dosing pump 100 delivers the foaming agent in the foaming agent tank 500 to the dosing pipe 800, and the collector dosing pump 200 delivers the collector in the collector tank 600 to the dosing pipe 800. The foaming agent and the collector are then delivered to the emulsification pump 400 together through the dosing pipe 800. At the same time, the water adding pump 300 delivers the clean water in the clean water tank 700 to the emulsification pump 400 to be mixed and emulsified with the two agents. When the foaming agent dosing pump 100 is damaged, the valves at both ends of the foaming agent dosing pump 100 can be closed, and the valves at both ends of the standby dosing pump 900, the valve on the standby input pipeline 910 between the foaming agent supply pipe 510 and the standby dosing pump 900, and the valve on the standby output pipeline 920 between the foaming agent output pipe 810 and the standby dosing pump 900 are opened. At this time, the standby dosing pump 900 is used to add the foaming agent. When the collector dosing pump 200 is damaged, the valves at both ends of the collector dosing pump 200 can be closed, and the valves at both ends of the standby dosing pump 900, the valve on the standby input pipeline 910 between the collector supply pipe 610 and the standby dosing pump 900, and the valve on the standby output pipeline 920 between the collector output pipe 820 and the standby dosing pump 900 are opened. At this time, the standby dosing pump 900 is used to add the collector.

[0040] In this embodiment, the dosing mechanism further includes a first safety valve 120 connected in parallel to both ends of the foaming agent dosing pump 100 through a pipeline, a second safety valve 220 connected in parallel to both ends of the collector dosing pump 200 through a pipeline, and a third safety valve 930 connected in parallel to both ends of the standby dosing pump 900 through a pipeline. When the output end of the dosing pump is blocked and the pressure is too high, the safety valve automatically opens, thereby playing a role in regulating the pressure of the dosing pump.

[0041] In this embodiment, the foaming agent output pipe 810 is connected in series with a first back pressure valve 130, and the collecting agent output pipe 820 is connected in series with a second back pressure valve 230. By providing the second back pressure valve 130 and the second back pressure valve 230, the pipe pressure of the dosing main pipe 800 can be maintained.

[0042] The dosing mechanism also includes a first pulse damper 140 connected to the output end of the foaming agent dosing pump 100, a second pulse damper 240 connected to the output end of the collector dosing pump 200, and a third pulse damper 940 connected to the output end of the standby dosing pump 900. The pulse damper can stabilize the output pressure of the dosing pump.

[0043] like Figure 3 As shown, the host computer is a workstation (industrial computer) operated by the flotation staff, which can display all real-time production parameters and adjust the flotation process indicators in time by issuing control commands by the operator.

[0044] The lower computer (PLC controller) adopts Siemens S7-1200PLC, which is responsible for the real-time production parameter collection, processing and calculation on site, and controls the action execution of on-site instruments and sensors. The PLC controller is electrically connected to the density transmitter, slurry flowmeter, frother flowmeter 110, collector flowmeter 210, clean water flowmeter 310, frother dosing pump 100, collector dosing pump 200 and water pump 300 respectively.

[0045] The working principle of the flotation automatic dosing device is to add frothers and collectors in proportion to the concentration of different flotation materials to achieve the flotation process requirements. The flotation dosing operation automatic control system uses the PLC controller as the core for data acquisition, processing and control output. The input / output of the switch quantity is equipped with a relay isolation device to ensure the reliability, stability and real-time performance of the input / output signal.

[0046] In this flotation dosing system, the concentration of the incoming ore pulp is detected by a special density transmitter in the flotation dosing operation automatic control system, and the ore pulp flow detection is completed by an electromagnetic flowmeter. By detecting the ore pulp concentration and flow, the system realizes real-time detection of the entire flotation process. The addition and metering of flotation reagents adopts the method of mechanical diaphragm metering pump, which is controlled by a frequency converter ( Figure 3 F403 is the frother dosing pump 100, F404 is the collector dosing pump 200, and F40BY is the spare dosing pump) for metering and transporting the flotation agent. The frother and collector are mixed with the clean water in proportion by the emulsifying pump 400 and emulsified and then transported to each dosing point.

[0047] This embodiment also includes a control cabinet and a base 1100. The PLC controller is installed in the control cabinet. The control cabinet and the dosing mechanism are fixedly installed on the base 1100. The base 1100 is specifically composed of channel steel. The device adopts a design idea of ​​organically combining the mechanical part and the electrical part for high integration. The structure is reasonably designed. Both the mechanical part and the electrical part are installed on the base 1100, which is convenient for overall lifting, transportation and installation. After being assembled into a finalized product, it does not need to be disassembled on site and can be installed as a whole.

[0048] In summary, this application has the following beneficial effects:

[0049] (1) The present application can add and measure the foaming agent through the foaming agent dosing pump 100 and the foaming agent flowmeter 110, add and measure the collector through the collector dosing pump 200 and the collector flowmeter 210, add and measure the clean water through the water adding pump 300 and the clean water flowmeter 310, and the foaming agent, collector and clean water are proportionally introduced into the emulsification pump 400 for sufficient mixing and emulsification, and then transported to each dosing point of the flotation machine, thereby realizing the automatic control of flotation dosing.

[0050] (2) During the dosing process, the two reagents can be fully mixed and emulsified, ensuring the flotation effect and saving the amount of reagents.

[0051] (3) During the dosing process, the density transmitter can be used to detect the concentration of the slurry entering the flotation machine in real time, while the slurry flow meter can be used to detect the flow of the slurry entering the flotation machine in real time. The system can track the changes in the amount of incoming materials in real time and automatically adjust the dosage of the reagent, thereby realizing automatic and precise control of the dosage, ensuring the flotation effect and saving the dosage of the reagent.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. An intelligent flotation dosing device, characterized in that: include: A slurry detection mechanism, the slurry detection mechanism includes a density transmitter and a slurry flow meter, the density transmitter is used to detect the concentration of the slurry entering the flotation machine, and the slurry flow meter is used to detect the flow of the slurry entering the flotation machine; A dosing mechanism, the dosing mechanism includes a foaming agent dosing pump, a foaming agent flowmeter, a collector dosing pump, a collector flowmeter, a water adding pump, a clean water flowmeter and an emulsification pump, the foaming agent dosing pump is used to deliver the foaming agent to the emulsification pump, the foaming agent flowmeter is used to measure the foaming agent delivered by the foaming agent dosing pump, the collector dosing pump is used to deliver the collector to the emulsification pump, the collector flowmeter is used to measure the collector delivered by the collector dosing pump, the water adding pump is used to deliver clean water to the emulsification pump, the clean water flowmeter is used to measure the clean water delivered by the water adding pump, and the emulsification pump is used to mix and emulsify the delivered foaming agent, collector and clean water; and a PLC controller, wherein the PLC controller is electrically connected to the density transmitter, the slurry flowmeter, the frother flowmeter, the collector flowmeter, the clean water flowmeter, the frother dosing pump, the collector dosing pump and the water dosing pump respectively; The dosing mechanism also includes a foaming agent tank, a collecting agent tank and a clean water tank; The bottom of the foaming agent tank is provided with a foaming agent supply pipe connected to the input end of the foaming agent dosing pump, the output end of the foaming agent dosing pump is provided with a foaming agent output pipe, and the foaming agent flow meter is connected to the foaming agent output pipe; The bottom of the collector tank is provided with a collector supply pipe connected to the input end of the collector dosing pump, the output end of the collector dosing pump is provided with a collector output pipe, and the collector flowmeter is connected to the collector output pipe; The bottom of the clean water tank is provided with a water supply pipe connected to the input end of the water adding pump, the output end of the water adding pump is provided with a water delivery pipe, and the clean water flow meter is connected to the water delivery pipe; The foaming agent output pipe and the collecting agent output pipe are respectively connected to the drug-adding main pipe, and the drug-adding main pipe and the water delivery pipe are connected to the input end of the emulsification pump after merging; The dosing mechanism also includes a standby dosing pump, the input end of the standby dosing pump is respectively connected to the foaming agent supply pipe and the collector supply pipe through two standby input pipelines, the output end of the standby dosing pump is respectively connected to the foaming agent output pipe and the collector output pipe through two standby output pipelines, and valves are provided at both ends of the foaming agent dosing pump, both ends of the collector dosing pump, both ends of the standby dosing pump, the two standby input pipelines, and the two standby output pipelines; The dosing mechanism also includes a first safety valve connected in parallel to both ends of the foaming agent dosing pump through a pipeline, a second safety valve connected in parallel to both ends of the collector dosing pump through a pipeline, and a third safety valve connected in parallel to both ends of the standby dosing pump through a pipeline; The foaming agent output pipe is connected in series with a first back pressure valve, and the collecting agent output pipe is connected in series with a second back pressure valve; The dosing mechanism further comprises a first pulse damper connected to the output end of the foaming agent dosing pump, a second pulse damper connected to the output end of the collector dosing pump, and a third pulse damper connected to the output end of the standby dosing pump.

2. The intelligent flotation dosing device according to claim 1 is characterized in that: The foaming agent dosing pump, collector dosing pump and spare dosing pump all adopt diaphragm metering pumps, the water adding pump adopts a centrifugal pump, the slurry flowmeter and clean water flowmeter both adopt electromagnetic flowmeters, and the foaming agent flowmeter and collector flowmeter both adopt worm gear flowmeters.

3. The intelligent flotation dosing device according to claim 1 is characterized in that: Magnetic flap level gauges are arranged outside the foaming agent tank, the collecting agent tank and the clean water tank.

4. The intelligent flotation dosing device according to claim 1 is characterized in that: It also includes a control cabinet and a base, the PLC controller is installed in the control cabinet, and the control cabinet and the dosing mechanism are both fixedly installed on the base.

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