CN214037869U - Ore pulp pipeline conveying protection and control system - Google Patents
Ore pulp pipeline conveying protection and control system Download PDFInfo
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- CN214037869U CN214037869U CN202023006249.3U CN202023006249U CN214037869U CN 214037869 U CN214037869 U CN 214037869U CN 202023006249 U CN202023006249 U CN 202023006249U CN 214037869 U CN214037869 U CN 214037869U
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Abstract
The utility model discloses an ore pulp pipeline transport protection and control system, a serial communication port, including feeding section, conveyer pipe line section, dehydration section and PLC controller, the feeding section include that ore pulp gives ore deposit pipe, feed stirred tank row material pipe, feed pump row material pipe and diaphragm pump the upper portion of giving the feed stirred tank is equipped with and adds mechanism and lime emulsion by sodium sulfite solution and adds the mechanism, ore pulp give the ore deposit pipe setting on the upper portion of feed stirred tank the feed stirred tank row is arranged and is equipped with concentration meter and technology moisturizing pipe on the material pipe, is equipped with electrical control valve I on the technology moisturizing pipe. The utility model has the advantages that: owing to adopted the utility model discloses an ore pulp pipeline transport protection system has avoided the transport section to take place to leak, the emergence of the accident that bursts effectively, has improved the stability and the reliability of system operation, has prevented the emergence of incident.
Description
Technical Field
The utility model belongs to the technical field of the ore dressing plant pipeline, especially, relate to an ore pulp pipeline transport protection and control system.
Background
Currently, in the mine industry, the transportation of iron ore concentrate products mainly adopts the modes of belt conveying, train conveying and automobile conveying. The adoption of the modes has the characteristics of high energy consumption, large investment, poor terrain adaptability and the like and high labor cost. Therefore, a conveying mode with low energy consumption, small investment and good terrain adaptability is urgently needed to be found in the current mine.
The pipeline conveying can be overhead or buried due to small occupied area along the line, can be laid on mountains and mountains, and has good adaptability to complex terrains. By adopting the mode, the longest conveying of the ore pulp can reach hundreds of kilometers only by arranging a feeding pump at the source, a pressurizing facility is not needed, and a feeding and conveying energy supply system is simple, low in cost and low in investment. And the pipeline conveying mode is adopted, and compared with the belt, automobile or train conveying mode, the conveying cost can be reduced by 30-50%.
However, when the pipeline transportation system is adopted, the distance of the whole pipeline system can reach hundreds of kilometers, most of the pipeline system passes through mountains and mountains in the middle, and even is buried, so that the whole pipeline system is required to be free of maintenance within the service life of 20 years to 30 years, namely, the pipeline can be free of maintenance and can be used for the whole service life. The iron ore concentrate has the characteristics of high specific gravity and high particle hardness, so that the pipeline is easily abraded, and the pipeline can be corroded by dissolved oxygen in the ore pulp for a long time to cause pipeline corrosion and pipeline damage. And the pressure of the pipeline conveying process is often over 20Mpa, and the pipeline is required to be prevented from bursting due to misoperation. In addition, effective measures must be taken to prevent the slurry from leaking in the conveying section.
In summary, there is a need to develop a protection and control system that can effectively prevent the iron ore concentrate from being transported and worn, corroded, burst and leaked.
Disclosure of Invention
The utility model aims at providing an ore pulp pipeline transportation protection that can effectually prevent that the iron ore concentrate from carrying to take place wearing and tearing, corruption, burst and leakage.
The purpose of the utility model is realized by the following technical scheme:
the utility model relates to a pulp pipeline conveying protection and control system, which is characterized by comprising a feeding section, a conveying pipeline section, a dewatering section and a PLC controller,
the feeding section comprises an ore pulp feeding pipe, a feeding stirring tank discharging pipe, a feeding pump connected with the feeding stirring tank discharging pipe, a feeding pump discharging pipe and a diaphragm pump connected with the feeding pump discharging pipe, wherein a sodium sulfite solution adding mechanism and a lime emulsion adding mechanism are arranged at the upper part of the feeding stirring tank;
the conveying pipeline is a conveying pipeline section, the length of the conveying pipeline is set according to actual production requirements, the feeding end of the conveying pipeline is connected with the outlet of the diaphragm pump, and a pressure gauge is arranged on the conveying pipeline every 20km-30 km;
the dehydration section is arranged at the tail end of the conveying pipeline and comprises a stirring tank, a filter and a thickener, a stirring tank feeding branch pipe, a filter branch pipe and a thickener feeding branch pipe are arranged at the tail end of the conveying pipeline, the stirring tank feeding branch pipe is arranged corresponding to the stirring tank, the filter branch pipe is arranged corresponding to the filter, the thickener feeding branch pipe is arranged corresponding to the thickener, and electric switch valves are respectively arranged on the three feeding branch pipes;
the pressure gauge, the diaphragm pump and the electric switch valve are all connected with the PLC.
Preferably, ore pulp pipeline transportation protection and control system, its characterized in that, sodium sulfite solution add mechanism by sodium sulfite solution storage tank, arrange the material pipe with the sodium sulfite solution that sodium sulfite solution storage tank is connected sodium sulfite solution, set up eccentric screw pump I, flowmeter I and electrical control valve II on sodium sulfite solution row material pipe, the export and the feed stirred tank of sodium sulfite solution row material pipe are connected, eccentric screw pump I, flowmeter I and electrical control valve II be connected with the PLC controller.
Preferably, the lime milk adding mechanism comprises a lime milk solution storage tank, a lime milk solution discharging pipe connected with the lime milk solution storage tank, an eccentric screw pump II arranged on the lime milk solution discharging pipeline, a flow meter II and an electric regulating valve III, wherein the outlet of the lime milk solution discharging pipe is connected with the feeding stirring tank, and the eccentric screw pump II, the flow meter II and the electric regulating valve III are electrically connected with the PLC.
Preferably, a filter with mesh of 2mm-3mm is arranged on the conveying pipeline at the outlet of the diaphragm pump, and isolation valves are arranged in front of and behind the filter 11.
Preferably, the volume of the stirred tank is stored for 6 to 8 hours of the delivery volume of the delivery line.
Preferably, the pressure gauge is provided with a low-pressure alarm and a high-pressure alarm, and the low-pressure alarm pressure value is set to be 70% -80% of the normal pressure value.
Preferably, the eccentric screw pump I and the eccentric screw pump II are driven by variable frequency motors.
The utility model has the advantages that:
owing to adopted the utility model discloses an ore pulp pipeline transport protection system has avoided the transport section to take place to leak, the emergence of the accident that bursts effectively, has improved the stability and the reliability of system operation, has prevented the emergence of incident, monitors the part in this system through equipment such as design densimeter, manometer and relevant electrical control valve simultaneously, has improved the life of system.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an enlarged view of a portion a of fig. 1.
Detailed Description
The following further describes the embodiments of the present invention with reference to the drawings.
As shown in figures 1 and 2, the ore pulp pipeline conveying protection and control system of the utility model is characterized in that the system comprises a feeding section, a conveying pipeline section, a dewatering section and a PLC controller,
the feeding section comprises an ore pulp feeding pipe 6, a feeding stirring tank 1, a feeding stirring tank discharging pipe 2, a feeding pump 3 connected with the feeding stirring tank discharging pipe 2, a feeding pump discharging pipe 4 and a diaphragm pump 5 connected with the feeding pump discharging pipe 4, wherein a sodium sulfite solution adding mechanism 7 and a lime emulsion adding mechanism 8 are arranged at the upper part of the feeding stirring tank 1, and the ore pulp feeding pipe 6 is arranged at the upper part of the feeding stirring tank 1; a concentration meter 21 and a process water replenishing pipe 19 are arranged on the discharging pipe 2 of the feeding stirring tank, an electric regulating valve I20 is arranged on the process water replenishing pipe 19, and the volume of the feeding stirring tank 1 is stored for 6-8 hours of ore pulp pipeline conveying capacity.
Because the iron ore concentrate has high specific gravity and is easy to deposit at the lower part of the feeding stirring tank, the discharging concentration of the feeding stirring tank is higher than the conveying concentration, and the abrasion of a pipeline can be increased when the conveying concentration is too high. Therefore, the utility model discloses a system is equipped with the concentration meter real-time supervision on the material pipe is arranged to the feed stirred tank of feeding section to adjust the aperture of electrical control valve I on the water compensating pipe through automatic interlocking and arrange the moisturizing volume, thereby will arrange material concentration control and setting for concentration, the favorable wearing and tearing that have reduced the pipeline, and for automatic interlocking control, control accuracy is high, does not need manual operation.
Sodium sulfite solution add mechanism 7 by sodium sulfite solution storage tank 71, arrange material pipe 72, set up eccentric screw pump I73, flowmeter I74 and electrical control valve II 75 on sodium sulfite solution row material pipe 72 with the sodium sulfite solution that is connected of sodium sulfite solution storage tank, the export that the sodium sulfite solution was arranged the material pipe is connected with feed stirred tank 1, eccentric screw pump I73, flowmeter I74 and electrical control valve II 75 also be connected with the PLC controller.
Be equipped with sodium sulfite solution at the feeding section and add the mechanism, through adding 1% -2% sodium sulfite solution to the feeding section feed stirred tank in the concentration, the dissolved oxygen in the absorption ore pulp that this part sodium sulfite can be abundant has avoided the corruption of dissolved oxygen's existence to the pipeline transportation, the pipeline of favorable protection.
Lime emulsion add mechanism 8 by lime milk solution storage tank 81, the lime milk solution that is connected with lime milk solution storage tank 81 arrange material pipe 82, set up eccentric screw pump II 83, flowmeter II 84 and the III 85 of electrical control valve on lime milk solution discharge pipeline 82, the export that lime milk solution arranged material pipe is connected with feed stirred tank 1, eccentric screw pump II 83, flowmeter II 84 and electrical control valve III 85 also with PLC controller electric connection.
The eccentric screw pump I73 and the eccentric screw pump II 83 are driven by variable frequency motors.
The utility model discloses a system is equipped with lime emulsion at the section of feeding and adds the mechanism, and through adding the lime milk that concentration is 5% -10% in feeding section feed stirred tank, the joining of this part lime milk, through the in-process calcium hydrate reaction at the transport become calcium carbonate scale deposit formation scale deposit on the pipe inner wall, can be favorable to stop the contact of ore granule and pipeline metal inner wall, has effectively prevented the wearing and tearing of pipeline.
The conveying pipeline section of the utility model is a conveying pipeline 9, the length of the conveying pipeline 9 is set according to the actual production requirement, the feed end of the conveying pipeline 9 is connected with the outlet of the diaphragm pump 5, and a pressure gauge 10 is arranged on the conveying pipeline 9 every 20km-30 km; the pressure gauge 10 is provided with a low-pressure alarm and a high-pressure alarm, and the low-pressure alarm pressure value is set to be 70% -80% of the normal pressure value.
The system of the utility model is provided with a filter 11 with meshes of 2mm-3mm on a conveying pipeline 9 at the outlet of the diaphragm pump 5, and isolation valves 12 are arranged around the filter 11. The device effectively prevents overlarge particles and sundries from entering the pipeline, effectively prevents the pipeline from being worn by the overlarge and overhigh sundries, and protects the pipeline. And the isolating valves are arranged in front of and behind the filter, so that when the filter is blocked, the filter can be quickly replaced by closing the isolating valves.
A pressure gauge 10 is arranged on the conveying pipeline 9 every 20-30km, when the pipeline leaks, the pressure is reduced to 70% -80% of the normal pressure value, automatic alarming is carried out, and signals are transmitted to a control room, so that the PLC can automatically judge the conveying section where the leakage point is located, the leakage point investigation time is greatly reduced, the pipeline repair is facilitated as soon as possible, and the pipeline is protected.
The utility model discloses a dehydration section sets up to the end of pipeline 9, and the dehydration section includes stirred tank 16, filter 17 and concentrator 18, is equipped with stirred tank feed branch 13, filter branch 14 and concentrator feed branch 15 at the end of pipeline 9, stirred tank feed branch 13 correspond stirred tank 16 and set up, filter branch 14 corresponds filter 17 and set up, concentrator feed branch 15 corresponds the concentrator 18 and sets up, is equipped with the electric switch valve on three feed branches respectively;
the working mode of the dehydration section is as follows:
1) when the electric switch valves of the filter and the thickener are not opened once in misoperation, the system automatically opens the electric switch valve arranged on the stirring tank material feeding branch pipe, and ore pulp can be discharged to the stirring tank in an emergency manner;
2) during normal production, the stirring tank feeding branch pipe and the electric switch valve of the thickener are closed, the electric switch valve on the filtering machine feeding branch pipe is opened, ore pulp is fed into the filtering machine for dehydration operation, and a filtering product is a final product;
3) when the filter stops due to a fault, the electric switch valves on the feeding branch pipes of the filter and the feeding branch pipes of the concentrator are closed, the electric switch valve of the stirring tank is opened, ore pulp is fed into the stirring tank for buffering, the buffering time is 6-8 hours, the filter is overhauled by utilizing the time, if the time is 6-8 hours, the filter still cannot normally work, and the whole conveying system stops; when the production of the filtering workshop is recovered, the ore pulp is conveyed to the filtering machine through the conveying pump in the stirring tank;
4) when the pipeline is washing water, the valves on the feeding branch pipes of the filtering machine and the stirring tank are closed, the valve on the feeding branch pipe of the thickener is opened, ore pulp is fed to the thickener, and the concentrated bottom flow is conveyed to the filtering machine through the bottom flow pump.
The utility model discloses a system, when the electric switch valve of filter and concentrated machine in case the maloperation is all not opened, the system is automatic to be opened and to be set up the electric switch valve on the stirred tank feed branch pipe, and the ore pulp can be emergent to be discharged to the stirred tank. The automatic interlocking detection ensures that at least one ore pulp outlet is arranged at the tail end of the pipeline, so that the pipeline burst caused by the continuous increase of the pressure in the pipeline due to the totally closed tail end of the pipeline is avoided, and the conveying pipeline is favorably protected.
The utility model discloses manometer 10, diaphragm pump 5's motor, eccentric screw pump's inverter motor, delivery pump's motor, flowmeter, pressure gauge, electrical control valve I, electrical control valve II, electrical control valve III and each electrical switch valve all are connected with the PLC controller.
The utility model discloses a PLC controller is as the control center of system, mainly is to carrying out supervisory control to the relevant part of system, is responsible for reading data, transmission information and carries out analysis and judgment to relevant data, forms control command. The coordination management and control of the whole ore pulp pipeline conveying system are formed, so that the operation of the ore pulp pipeline conveying system is more reliable and stable, the remote operation can be realized, the automation degree is high, no field operator needs to be arranged, and the labor cost is reduced.
In the description of the present invention, it should be understood that the terms "upper portion", "lower portion", "left side", "right side" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Claims (6)
1. A pulp pipeline conveying protection and control system is characterized by comprising a feeding section, a conveying pipeline section, a dewatering section and a PLC (programmable logic controller),
the feeding section comprises an ore pulp feeding pipe, a feeding stirring tank discharging pipe, a feeding pump connected with the feeding stirring tank discharging pipe, a feeding pump discharging pipe and a diaphragm pump connected with the feeding pump discharging pipe, wherein a sodium sulfite solution adding mechanism and a lime emulsion adding mechanism are arranged at the upper part of the feeding stirring tank;
the conveying pipeline is a conveying pipeline section, the length of the conveying pipeline is set according to actual production requirements, the feeding end of the conveying pipeline is connected with the outlet of the diaphragm pump, and a pressure gauge is arranged on the conveying pipeline every 20km-30 km;
the dehydration section is arranged at the tail end of the conveying pipeline and comprises a stirring tank, a filter and a thickener, a stirring tank feeding branch pipe, a filter branch pipe and a thickener feeding branch pipe are arranged at the tail end of the conveying pipeline, the stirring tank feeding branch pipe is arranged corresponding to the stirring tank, the filter branch pipe is arranged corresponding to the filter, the thickener feeding branch pipe is arranged corresponding to the thickener, and electric switch valves are respectively arranged on the three feeding branch pipes;
the pressure gauge, the diaphragm pump and the electric switch valve are all connected with the PLC.
2. The ore pulp pipeline transportation protection and control system of claim 1, wherein the sodium sulfite solution adding mechanism comprises a sodium sulfite solution storage tank, a sodium sulfite solution discharge pipe connected with the sodium sulfite solution storage tank, an eccentric screw pump I, a flow meter I and an electric control valve II arranged on the sodium sulfite solution discharge pipe, wherein an outlet of the sodium sulfite solution discharge pipe is connected with the feeding stirring tank, and the eccentric screw pump I, the flow meter I and the electric control valve II are connected with the PLC.
3. The ore pulp pipeline conveying protection and control system according to claim 1, wherein the lime milk adding mechanism comprises a lime milk solution storage tank, a lime milk solution discharging pipe connected with the lime milk solution storage tank, an eccentric screw pump II, a flow meter II and an electric regulating valve III which are arranged on the lime milk solution discharging pipe, an outlet of the lime milk solution discharging pipe is connected with the feeding stirring tank, and the eccentric screw pump II, the flow meter II and the electric regulating valve III are electrically connected with the PLC.
4. The pulp pipeline transportation protection and control system according to claim 1, wherein a filter with mesh size of 2mm-3mm is arranged on the transportation pipeline at the outlet of the diaphragm pump, and isolation valves are arranged in front of and behind the filter.
5. The pulp pipeline transportation protection and control system of claim 1, wherein the volume of the agitation tank stores the transportation volume of the pipeline for 6-8 hours.
6. The pulp pipeline transportation protection and control system according to claim 1, wherein a low pressure alarm and a high pressure alarm are provided on the pressure gauge, and the low pressure alarm pressure value is set to 70% -80% of the normal pressure value.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202023006249.3U CN214037869U (en) | 2020-12-15 | 2020-12-15 | Ore pulp pipeline conveying protection and control system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202023006249.3U CN214037869U (en) | 2020-12-15 | 2020-12-15 | Ore pulp pipeline conveying protection and control system |
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| CN214037869U true CN214037869U (en) | 2021-08-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114321724A (en) * | 2021-11-25 | 2022-04-12 | 中国恩菲工程技术有限公司 | Lime milk conveying method and device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114321724A (en) * | 2021-11-25 | 2022-04-12 | 中国恩菲工程技术有限公司 | Lime milk conveying method and device |
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