CN202893485U - Ore pulp technology frequency conversion regulation and control device of thickener underflow pump - Google Patents
Ore pulp technology frequency conversion regulation and control device of thickener underflow pump Download PDFInfo
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- CN202893485U CN202893485U CN 201220538377 CN201220538377U CN202893485U CN 202893485 U CN202893485 U CN 202893485U CN 201220538377 CN201220538377 CN 201220538377 CN 201220538377 U CN201220538377 U CN 201220538377U CN 202893485 U CN202893485 U CN 202893485U
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- ore pulp
- thickener
- control device
- frequency conversion
- pump
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Abstract
The utility model discloses an ore pulp technology frequency conversion regulation and control device of a thickener underflow pump. The ore pulp technology frequency conversion regulation and control device of the thickener underflow pump comprises an overflowing hydrocyclone and a thickener and is characterized in that material is fed into the thickener from an overflowing port of the overflowing hydrocyclone through pipelines, a slurry pump is arranged in an underflow running pipeline of the thickener, and the rotating speed of the slurry pump is regulated and controlled by a frequency converter, a proportion integration differentiation (PID) controller and a programmable logic controller (PLC) displayer. The ore pulp technology frequency conversion regulation and control device of the thickener underflow pump is reasonable in structure design, and capable of not only avoiding the maintenance charge of a regulating valve and enabling control indicators to be more accurate and stable, but also greatly reducing maintenance cost of equipment, the electricity-saving rate is over 30%, and the quality of products is improved.
Description
Technical field
The adopting iron ore tailings that the utility model relates in the mining industry is processed, specifically the ore pulp technique frequency conversion control device of thickener underflow pump in a kind of adopting iron ore tailings processing procedure.
Background technology
In recent years, because various drawbacks and the potential safety hazard of traditional tailing constantly occur, a kind of tailing dry-heaping new technology as the mine tailing processing, just at development, but the at present adjustment of ore pulp amount is to adjust valve by thickener underflow to control mostly, because pulp density is high, valve directly affects the safe operation of equipment often by (salinity) chemical substance in ore pulp corrosion and tied or valve is punctured distortion by oarse-grained ore pulp in the actual production.
The utility model content
The purpose of this utility model is in order to remedy the deficiency of prior art, a kind of ore pulp technique frequency conversion control device of thickener underflow pump is provided, according to ore-dressing technique parameter (thickener pulp density, fineness, ore pulp sedimentation time etc.) requirement, adjust thickener underflow pump mineral slurry flux by the frequency of regulating frequency converter, thereby reach the requirement of adjusting pulp density.Frequency converter is because frequency modulation (speed) wide ranges, highly sensitive, action response time is fast and have higher control accuracy, this pulp density technology controlling and process converter plant substitutes the thickener underflow pump control valve as executing agency, not only can avoid the maintenance cost of control valve, make the control index more precise and stable, but also can greatly reduce cost of equipment maintenance, power saving rate reaches more than 30%, improves the quality of products.
The utility model is achieved through the following technical solutions:
A kind of ore pulp technique frequency conversion control device of thickener underflow pump, include excessive cyclone, concentrator, it is characterized in that: the overfall of described excessive cyclone is sent into material in the concentrator by pipeline, be provided with the slag stock pump in the underflow conveyance conduit of described concentrator, the rotating speed of described slag stock pump is by frequency converter, PID controller, the control of PLC display register.
The upper oral part of described concentrator opens wide and is overfall, and oral area is provided with interior step.
Described PLC display is transferred to the PID controller with control signal, and described PID controller receives signal, and outputs signal to frequency converter, and frequency converter frequency is adjustable to make slag stock pump variable speed, and then flow can show by the PLC display.
Its principle is: the tailings (concentration is about 10-15%) from the ore dressing plant at first enters cyclone, through cyclone carry out grading concentrated after, the coarse fraction mortar is discharged by sand settling mouth and is carried out underground filling, the fine fraction mortar is discharged by overfall and is entered that to carry out secondary in the thickener concentrated, concentrated underflow pump and 2 the SVF-2000 high-performance AC frequency converters of being furnished with 2 220kw of secondary, the concentrated ore pulp of thickener feeds the slag stock pump by AC converter and is transported to Tailings Dam, and the overflow water of thickener is sent into the ore dressing plant and recycled.
The utility model has the advantages that:
1, motor is according to the requirement adjusting rotary speed in real time of control and regulation, in addition cube being directly proportional of the power output P of load of the pumps motor and motor speed n, so energy-saving effect is apparent in view.
When 2, using frequency converter that mineral slurry flux is regulated, can be without control valve, both can maintenance cost saving, can guarantee again to produce stable.Because the control valve that use in the ore dressing plant all is to be installed on the ore pulp pipeline, because ore pulp is in pipeline during rapid flow, the graininess ore pulp fluid of higher concentration can have larger wearing and tearing, corrosion to control valve.Even use the control valve of the strong material of wearability, also need inevitably often maintenance and replacing, cause larger maintenance cost and maintenance load.
Thereby 3, adjust operating frequency, the exploitation speed change underflow density of thickener underflow pump by the mode of using frequency control, both guaranteed not blocked pipeline, can provide again the ore deposit amount that meets the process equipment requirement, this has not only satisfied the oligosaprobic low-carbon (LC) theory of low energy consumption, simultaneously also energy-conservation certain economic benefit has been arranged.
Description of drawings
Fig. 1 is the utility model structural representation.
The specific embodiment
Referring to accompanying drawing, a kind of ore pulp technique frequency conversion control device of thickener underflow pump, include overflow cyclone 1, concentrator 2, the overfall 3 of excessive cyclone 1 is sent into material in the concentrator by pipeline 4, be provided with slag stock pump 6 in the underflow conveyance conduit 5 of concentrator 2, the rotating speed of slag stock pump 6 is regulated control by frequency converter 11, PID controller 9, PLC display 10; The upper oral part of concentrator 2 opens wide and is overfall 7, and oral area is provided with interior step 8; PLC display 10 is transferred to PID controller 9 with control signal, and PID controller 9 receives signal, and outputs signal to frequency converter 11, and frequency converter 11 frequencies are adjustable to make slag stock pump 6 variable speed, and then flow can show by PLC display 10.
In actual production, on off control, running status and the frequency thereof of thickener underflow pump frequency conversion device given and established a capital is by background monitoring and PLC control (picture), by manually seeing what on-site actual situations was controlled constantly.When control thickener underflow pump pulp density, if pulp density is too high, then need the frequency of corresponding increase frequency converter, in order to avoid flow velocity causes the ore pulp deposition too fast excessively slowly, otherwise, if pulp density is lower, then can suitably reduce frequency, guarantee the stable operation of follow-up equipment.In control, PID controller control by automation PLC, by the in good time given frequency from the WINCC control interface of operating personnel, then by PLC control command (the communication connection is input to signal) is sent to frequency converter, thereby changed the running status of the operating frequency control motor of motor by frequency converter.
Claims (3)
1. the ore pulp technique frequency conversion control device of a thickener underflow pump, include excessive cyclone, concentrator, it is characterized in that: the overfall of described excessive cyclone is sent into material in the concentrator by pipeline, be provided with the slag stock pump in the underflow conveyance conduit of described concentrator, the rotating speed of described slag stock pump is by frequency converter, PID controller, the control of PLC display register.
2. the ore pulp technique frequency conversion control device of a kind of thickener underflow pump according to claim 1 is characterized in that: the upper oral part of described concentrator opens wide and is overfall, and oral area is provided with interior step.
3. the ore pulp technique frequency conversion control device of a kind of thickener underflow pump according to claim 1, it is characterized in that: described PLC display is transferred to the PID controller with control signal, described PID controller receives signal, and output signal to frequency converter, frequency converter frequency is adjustable to make slag stock pump variable speed, and then flow can show by the PLC display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220538377 CN202893485U (en) | 2012-10-19 | 2012-10-19 | Ore pulp technology frequency conversion regulation and control device of thickener underflow pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220538377 CN202893485U (en) | 2012-10-19 | 2012-10-19 | Ore pulp technology frequency conversion regulation and control device of thickener underflow pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202893485U true CN202893485U (en) | 2013-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220538377 Expired - Lifetime CN202893485U (en) | 2012-10-19 | 2012-10-19 | Ore pulp technology frequency conversion regulation and control device of thickener underflow pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202893485U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104627928A (en) * | 2013-11-13 | 2015-05-20 | 甘肃中盛矿业有限责任公司 | Adjustment method of working frequency in treating process of silver-zinc mixed mine tailings |
| CN104923382A (en) * | 2015-07-13 | 2015-09-23 | 天津美腾科技有限公司 | Tailing quantified and continuous discharging method for coarse slime separation machine |
| CN106955512A (en) * | 2017-05-03 | 2017-07-18 | 茌平信发华宇氧化铝有限公司 | Subsider mud layer automatic control system |
| CN109603213A (en) * | 2018-12-20 | 2019-04-12 | 中国恩菲工程技术有限公司 | Dense machine control system and method |
-
2012
- 2012-10-19 CN CN 201220538377 patent/CN202893485U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104627928A (en) * | 2013-11-13 | 2015-05-20 | 甘肃中盛矿业有限责任公司 | Adjustment method of working frequency in treating process of silver-zinc mixed mine tailings |
| CN104923382A (en) * | 2015-07-13 | 2015-09-23 | 天津美腾科技有限公司 | Tailing quantified and continuous discharging method for coarse slime separation machine |
| CN106955512A (en) * | 2017-05-03 | 2017-07-18 | 茌平信发华宇氧化铝有限公司 | Subsider mud layer automatic control system |
| CN109603213A (en) * | 2018-12-20 | 2019-04-12 | 中国恩菲工程技术有限公司 | Dense machine control system and method |
| CN109603213B (en) * | 2018-12-20 | 2024-03-19 | 中国恩菲工程技术有限公司 | Thickener control system and method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130424 |
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| CX01 | Expiry of patent term |