CN104019369A - Long-distance pulp pipeline flow division conveying system and slurry flow division switching and conveying method - Google Patents
Long-distance pulp pipeline flow division conveying system and slurry flow division switching and conveying method Download PDFInfo
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- CN104019369A CN104019369A CN201410271718.4A CN201410271718A CN104019369A CN 104019369 A CN104019369 A CN 104019369A CN 201410271718 A CN201410271718 A CN 201410271718A CN 104019369 A CN104019369 A CN 104019369A
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Abstract
The invention provides a long-distance pulp pipeline flow division conveying system and a pulp flow division switching and conveying method. The system comprises a pulp flow division primary way main pipeline, a first flow division branch pipeline, a second flow division branch pipeline, a washing water pump, a washing flow division primary way pipeline, a first washing branch pipeline and a second washing branch pipeline, wherein the first flow division branch pipeline, the second flow division branch pipeline, the washing water pump and the washing flow division primary way pipeline are formed by separating the pulp flow division primary way main pipeline, and the first washing branch pipeline and the second washing branch pipeline are formed by separating the washing flow division primary way pipeline. The first flow division branch pipeline is connected with a first dehydrating station. The second flow division branch pipeline is connected with a second dehydrating station. A pumping outlet of the washing water pump is connected with the washing flow division primary way pipeline. The first washing branch pipeline is connected with the first flow division branch pipeline. The second washing branch pipeline is connected with the second flow division branch pipeline. All the pipelines are provided with valves. The long-distance pulp pipeline flow division conveying system achieves the effects that one pipe can be used in many ways and pulp can be conveyed in a flow division mode, online flow division switching operation of pulp conveying is achieved, and the production requirements of a plurality of downstream terminals are met; meanwhile, the system has the advantages of being low in loss, economical and efficient, saving energy and protecting environment, and application and popularization of the pulp pipeline conveying technology are promoted.
Description
Technical field
The present invention relates to Technology of Slurry Pipeline Delivery field, especially relate to a kind of long-distance slurry pipeline shunt transporting system and slurry shunting switching delivery method.
Background technique
At China's fast increasing economy, the particularly sustainable and stable development of the industry such as metallurgy, petrochemical industry, oil, chemical fertilizer in recent years, along with the price of the energy promotes, cost of transportation is more and more higher, and environmental pollution is also more and more serious.Pipeline transport (Pipeline transport) is a kind of defeated mode of growing distance conveying liquids and gases goods and materials as means of transportation with pipeline.Pipeline industry is Chinese emerging carrier, to be railway, highway, water transport, air transportation the fifth-largest transport service afterwards, it plays a very important role in national economy and social development, and pipeline transport is to utilize under ground piping that the media such as crude oil, rock gas, product oil, ore pulp, coal slurry are delivered to destination.Long carry business in the ascendant at home apart from ore slurry pipeline, have the advantages such as energy-conserving and environment-protective, loss are low, equalization stable to be subject to increasing mine owner's welcome due to it.Pipeline conveying solid material is lower than highway transport expense, can meet the requirement of modern factories quantity-produced.Annual operating cost is about 8% ~ 10%(operating cost of pipeline investment under normal circumstances: standby redundancy expense, the electricity charge, labor wage and administration expenses), yearly depreciation 6% ~ 7%, annual income is by being approximately 35% of gross investment.Therefore substantially in 4 ~ 5 years, be recoverable to fully invested, and the service life of pipeline is 30 years, so economic benefits comparison is considerable.Pipeline transport is energy-saving and emission-reduction and the environmental protection project that country actively promotes at present, meets national sustainable development requirement, is the project that national industrial policies are supported.Pipage significantly reduces than highway transport expense, except self operation cost expense of pipeline, do not produce other fees, pipe-line transportation system is implemented pipe-line transportation system automation control by supervisory system, ore pulp in pipeline transport process is without leakage, 3 ‰ shedding also and can significantly reduce on the way compared with Automobile Transportation, and on the pollution-free impact of surrounding enviroment.But in long-distance slurry pipe transportation technology, often needing to carry out slurry shunting carries, because have multiple different locations in reality simultaneously, ore resource is had to demand, and ore resource generally all concentrates on some places, make in actual long-distance transportation through pipeline system, need to adopt shunting conveying technology that ore resource is delivered to different resource requirement places from a resource ground simultaneously, to realize some conveying function to multiple spot, and can switch arbitrarily terminal dehydrating station to be conveyed to meet the demand of each production unit, but in prior art, not yet there is a kind of can be good at the realizing more this long-distance slurry pipeline shunt transporting system to multiple spot shunting slurry body and slurry shunting switching delivery method.
Summary of the invention
Delivery method is switched in a kind of long-distance slurry pipeline shunt transporting system of proposition and the slurry shunting of the present invention's innovation, solve the technical barrier of one tube multipurpose shunting transfer ore pulp slurry, realize the online shunting switchover operation of transfer ore pulp, meet the Production requirement of multiple downstreams terminal, there is the advantages such as loss is low, energy-conserving and environment-protective, economical and efficient simultaneously, promoted promoting the use of of Technology of Slurry Pipeline Delivery.
It is as follows that the present invention solves the problems of the technologies described above taked technological scheme:
A kind of long-distance slurry pipeline shunt transporting system, comprise: slurry shunting main line total pipeline 37, the first diverter branch pipeline 4, the second diverter branch pipeline 36, flush water pump 17, water supply line 39, process water pond 21, rinse shunting main line pipeline 40, first rinses bypass line 41, second rinses bypass line 42 and some valves, described slurry shunting main line total pipeline 37 is connected in described the first diverter branch pipeline 4 and the second diverter branch pipeline 36, described the first diverter branch pipeline 4 is connected in the first dehydrating plant 1, described the second diverter branch pipeline 36 is connected in the second dehydrating plant 2, the pumping entrance of described flush water pump 17 is connected in described process water pond 21 by water supply line 39, the pumping outlet of described flush water pump 17 is connected in described flushing shunting main line pipeline 40, described flushing shunting main line pipeline 40 is connected in described first and rinses bypass line 41 and the second flushing bypass line 42, described first rinses bypass line 41 is connected in described the first diverter branch pipeline 4, described second rinses bypass line 42 is connected in described the second diverter branch pipeline 36, on described each pipeline, be provided with valve.
Further according to long-distance slurry pipeline shunt transporting system of the present invention, wherein also include booster station and technique deposition tank 22, the entry end of described slurry shunting main line total pipeline 37 is connected in described booster station 3, the outlet end of described slurry shunting main line total pipeline 37 is connected in described the first diverter branch pipeline 4 and the second diverter branch pipeline 36 by threeway simultaneously, and described slurry shunting main line total pipeline 37 is connected in described technique deposition tank 22 by the slurry backflow bypass line 38 with manual ball valve 26.
Further according to long-distance slurry pipeline shunt transporting system of the present invention, wherein on described slurry shunting main line total pipeline 37, be provided with first flow meter 35, manual ball valve 30, pressure transmitter pressure gauge 27, nuclear-magnetism densitometer 29 and the first check valve 16, described the first check valve 16 is near the outlet end setting of slurry shunting main line total pipeline 37, described nuclear-magnetism densitometer 29 is arranged at the upstream of the first check valve 16, described pressure transmitter pressure gauge 27 is arranged at the upstream of nuclear-magnetism densitometer 29, described manual ball valve 30 is arranged at the upstream of pressure transmitter pressure gauge 27, described first flow meter 35 is arranged at the upstream of manual ball valve 30.
Further according to long-distance slurry pipeline shunt transporting system of the present invention, wherein on described the first diverter branch pipeline 4, be provided with manual ball valve 6, the first electric ball valve group and pressure transmitter pressure gauge 8, described manual ball valve 6 is near the outlet end setting of the first diverter branch pipeline 4, described the first electric ball valve group is near the entry end setting of the first diverter branch pipeline 4, and described pressure transmitter pressure gauge 8 is arranged between described manual ball valve 6 and the first electric ball valve group; On described the second diverter branch pipeline 36, be provided with manual ball valve 34, the second electric ball valve group and pressure transmitter pressure gauge 33, described manual ball valve 34 is near the outlet end setting of the second diverter branch pipeline 36, described the second electric ball valve group is near the entry end setting of the second diverter branch pipeline 36, and described pressure transmitter pressure gauge 33 is arranged between described manual ball valve 34 and the second electric ball valve group.
Further according to long-distance slurry pipeline shunt transporting system of the present invention, wherein on described water supply line 39, be provided with pressure transmitter pressure gauge 18 and electric ball valve 20, described flushing shunting main line pipeline 40 is connected in described process water pond 21 by the bath backflow bypass line 43 with manual ball valve 23, on described flushing shunting main line pipeline 40, be provided with pressure transmitter pressure gauge 24, the second flowmeter 25 and the second check valve 15, described the second check valve 15 is near the outlet end setting of rinsing shunting main line pipeline 40, described first rinses bypass line 41 is connected in the pipe side wall between pressure transmitter pressure gauge 8 and the first electric ball valve group in the first diverter branch pipeline 4, and rinse in bypass line 41 and be provided with electric ball valve 10 described first, described second rinses bypass line 42 is connected in the pipe side wall between pressure transmitter pressure gauge 33 and the second electric ball valve group in the second diverter branch pipeline 36, and rinse in bypass line 42 and be provided with electric ball valve 32 described second.
Further according to long-distance slurry pipeline shunt transporting system of the present invention, wherein on each pipeline, be provided with the side direction exhaust branch road with manual ball valve, described slurry shunting main line total pipeline 37, described the first diverter branch pipeline 4 and described the second diverter branch pipeline 36 are crossed adpting flange 5 by multistage device for cleaning pipeline and are formed by connecting.
Further, according to long-distance slurry pipeline shunt transporting system of the present invention, wherein said process water pond 21 is connected in water system, and described flush water pump 17 adopts self-balance type multistage centrifugal pump.
A delivery method is switched in the slurry shunting of carrying out based on long-distance slurry pipeline shunt transporting system of the present invention, it is characterized in that, comprises the following steps:
1), select to switch the dehydration website of conveying, and definite switching mode;
2), open the valve on the total pipeline of slurry shunting main line;
3), open the pipeline main entrance valve in to be switched dehydration website and confirm;
4), open the valve connecting on the diverter branch pipeline of described to be switched dehydration website, and close the valve on other diverter branch pipelines, slurry is shunted to main line total pipeline and switches to to be switched dehydration website slurry body;
5), utilize flush water pump to rinse other diverter branch pipelines.
Further according to slurry of the present invention, delivery method is switched in shunting, wherein, in the time selecting to carry and adopt in water switching mode to the first dehydrating plant switching, specifically comprises the following steps:
1), open the manual ball valve 30 on the total pipeline of slurry shunting main line, the numerical value of observing nuclear-magnetism densitometer 29 drops to below 15%;
2), open the main pipeline main entrance valve in the first dehydrating plant 1 and confirm;
3), open manual ball valve 6 and the first electric ball valve group on the first diverter branch pipeline 4, and close the second electric ball valve group on the second diverter branch pipeline 36, slurry is shunted to main line total pipeline 37 and switches to the first dehydrating plant 1 and carry;
4), start flush water pump 17, open the electric ball valve 20 on water supply line, and the numerical value that ensures to rinse the pressure transmitter pressure gauge 24 on shunting main line pipeline 40 is greater than the numerical value of the pressure transmitter pressure gauge 33 on the second diverter branch pipeline 36;
5), open the manual ball valve 34 on the second electric ball valve 32, the second dehydrating plant 2 interior main pipeline main entrance valve and the second diverter branch pipeline 36 rinsing in bypass line 42, and close the manual ball valve 23 in electric ball valve 10 in the first flushing bypass line 41 and bath backflow bypass line 43, and adjust flush water pump and make the regime flow of first flow meter 25 be greater than 230m
3/ h, be less than 300m
3/ h, utilizes the process water in process water pond 21 to rinse the second diverter branch pipeline 36;
6), after the interior main pipeline entrance concentration of the second dehydrating plant 2 drops to 15%, stop described flush water pump 17, close the interior main pipeline of the second dehydrating plant 2 main entrance valve, close the electric ball valve 32 in the second flushing bypass line 42.
Further according to slurry of the present invention, delivery method is switched in shunting, wherein, in the time selecting to carry and adopt in ore pulp switching mode to the first dehydrating plant switching, specifically comprises the following steps:
1), open the manual ball valve 30 on the total pipeline of slurry shunting main line, observe the second flowmeter 35 on slurry shunting main line total pipeline 37, and the slurry flow that slurry is shunted in the total pipeline of main line is reduced to 200m
3/ h left and right;
2), open the main pipeline main entrance valve in the first dehydrating plant 1 and confirm;
3), open manual ball valve 6 and the first electric ball valve group on the first diverter branch pipeline 4, and close the second electric ball valve group on the second diverter branch pipeline 36, observe the second flowmeter 35 on slurry shunting main line total pipeline 37, and the slurry flow that slurry is shunted in the total pipeline of main line is promoted to 270m
3more than/h, realize and slurry is shunted to main line total pipeline 37 switch to the first dehydrating plant 1 transfer ore pulp;
4), start flush water pump 17, open the electric ball valve 20 on water supply line, and the numerical value that ensures to rinse the pressure transmitter pressure gauge 24 on shunting main line pipeline 40 is greater than the numerical value of the pressure transmitter pressure gauge 33 on the second diverter branch pipeline 36;
5), open the manual ball valve 34 on the second electric ball valve 32, the second dehydrating plant 2 interior main pipeline main entrance valve and the second diverter branch pipeline 36 rinsing in bypass line 42, and close the manual ball valve 23 in electric ball valve 10 in the first flushing bypass line 41 and bath backflow bypass line 43, and adjust flush water pump and make the regime flow of first flow meter 25 be greater than 230m
3/ h, be less than 300m
3/ h, utilizes the process water in process water pond 21 to rinse the second diverter branch pipeline 36;
6), after the interior main pipeline entrance concentration of the second dehydrating plant 2 drops to 15%, stop described flush water pump 17, close the interior main pipeline of the second dehydrating plant 2 main entrance valve, close the electric ball valve 32 in the second flushing bypass line 42.
At least can reach following technique effect by technological scheme of the present invention:
1) the present invention has realized an ore slurry pipeline and has switched arbitrarily slurry body to multiple websites, has met the Production requirement of multiple downstreams terminal, has greatly improved economic benefit;
2), the particular advantages such as the Technology of Slurry Pipeline Delivery that proposes of the present invention has that loss is low simultaneously, energy-conserving and environment-protective, conveying output are high, equalization stable, cost is low, economic benefit is high, promoted promoting the use of of Technology of Slurry Pipeline Delivery.
Brief description of the drawings
Accompanying drawing 1 is the overall structure schematic diagram of long-distance slurry pipeline shunt transporting system of the present invention.
In figure, the implication of each reference character is as follows:
1-the first dehydrating plant, 2-the second dehydrating plant, 3-booster station, 4-the first diverter branch pipeline, 5-adpting flange, 6, 7, 13, 19, 23, 26, 28, 30, 31, 34-manual ball valve, 8, 18, 24, 27, 33-pressure transmitter pressure gauge, 9-12, 14, 20, 32-electric ball valve, 15-the first check valve, 16-the second check valve, 17-flush water pump, 21-process water pond, 22-technique deposition tank, 25-first flow meter, 29-nuclear-magnetism densitometer, 35-the second flowmeter, 36-the second diverter branch pipeline, 37-slurry shunting main line total pipeline, 38-slurry backflow bypass line, 39-water supply line, 40-rinses shunting main line pipeline, 41-first rinses bypass line, 42-second rinses bypass line, 43-bath backflow bypass line.
Embodiment
Below in conjunction with accompanying drawing, technological scheme of the present invention is described in detail, so that those skilled in the art can more clearly understand the present invention, but does not therefore limit the scope of the invention.
As shown in Figure 1, long-distance slurry pipeline shunt transporting system entirety of the present invention comprises booster station, distribution station and terminal dehydrating station.Described booster station 3 comprises the slurry input pipeline and the compression pump that connect upstream pumping unit, described slurry input pipeline is connected in compression pump, the slurry that provides upstream pumping unit to carry to it, the output terminal of described booster station 3 is connected in distribution station, described distribution station comprises slurry shunting main line total pipeline 37, the first diverter branch pipeline 4, flush water pump 17, process water pond 21, technique deposition tank 22 and the second diverter branch pipeline 36, the entry end of described slurry shunting main line total pipeline 37 is connected in the pumping outlet of booster station 3, the outlet end of described slurry shunting main line total pipeline 37 separates described the first diverter branch pipeline 4 and the second diverter branch pipeline 36, on described slurry shunting main line total pipeline 37, be provided with first flow meter 35 simultaneously, manual ball valve 30, pressure transmitter pressure gauge 27, nuclear-magnetism densitometer 29 and the first check valve 16, described first flow meter 35 is arranged at slurry shunting total pipeline 37 upstreams near compression pump direction, main line, be provided with described manual ball valve 30 in the downstream of described first flow meter 35, be provided with described pressure transmitter pressure gauge 27 in the downstream of described manual ball valve 30, be provided with described nuclear-magnetism densitometer 29 in the downstream of described pressure transmitter pressure gauge 27, in the downstream of described nuclear-magnetism densitometer 29 and shunt near slurry shunting main line total pipeline 37 on the pipeline of outlet end and be provided with described the first check valve 16, simultaneously described slurry shunting main line total pipeline 37 is connected in technique deposition tank 22 by one end with the slurry backflow bypass line 38 of manual ball valve 26, described bypass line is preferably connected in slurry shunting main line total pipeline 37 sidewalls of described pressure transmitter pressure gauge 27 upstreams.Measure the flow in total pipeline by described first flow meter 35, control the switch of total pipeline by described manual ball valve 30, measure the pressure in total pipeline by described pressure transmitter pressure gauge 27, measure the slurry density in total pipeline by described nuclear-magnetism densitometer 29, prevent that by described the first check valve 16 liquid is along slurry shunting main line total pipeline 37 reverse backflows, the slurry that can slurry be shunted in main line total pipeline 37 as required by described bypass line inputs to technique deposition tank 22, described slurry shunting main line total pipeline 37 is preferably formed by connecting by there being multistage device for cleaning pipeline to cross adpting flange.Described the first diverter branch pipeline 4 is connected in the first dehydrating plant 1, and be provided with manual ball valve 6 on described the first diverter branch pipeline 4, electric ball valve 9 and electric ball valve 11, wherein said manual ball valve 6 is near the outlet end (downstream) of the first diverter branch pipeline 4, described electric ball valve 9 and electric ball valve 11 are near the shunting entry end (upstream) of the first diverter branch pipeline 4, on described the first diverter branch pipeline, be provided with the pressure transmitter pressure gauge 8 in order to sensing fluid pressure in it simultaneously, preferred described pressure transmitter pressure gauge 8 is arranged on the pipeline between manual ball valve 6 and electric ball valve 9, described the first diverter branch pipeline 4 is preferably crossed adpting flange 5 by multistage device for cleaning pipeline and is formed by connecting, can select according to the distance of the first dehydrating plant 1 connecting length of the first diverter branch pipeline.Described the second diverter branch pipeline 36 is connected in the second dehydrating plant 2, and be provided with manual ball valve 34 on described the second diverter branch pipeline 36, electric ball valve 14 and electric ball valve 12, wherein said manual ball valve 34 is near the outlet end setting of the second diverter branch pipeline 36, described electric ball valve 14 and electric ball valve 12 arrange near the shunting entry end of the second diverter branch pipeline 36, on described the second diverter branch pipeline, be provided with the pressure transmitter pressure gauge 33 in order to sensing fluid pressure in it simultaneously, preferred described pressure transmitter pressure gauge 33 is arranged on the pipeline between manual ball valve 34 and electric ball valve 14, described the second diverter branch pipeline 36 is preferably formed by connecting by there being multistage device for cleaning pipeline to cross adpting flange, can select according to the distance of the second dehydrating plant 2 connecting length of the second diverter branch pipeline, in like manner described manual ball valve and electric ball valve are for controlling the break-make of corresponding pipe section, described pressure transmitter pressure gauge is for the hydrodynamic pressure of transmission in the corresponding pipeline of sensing.The pumping entrance of described flush water pump 17 is connected in process water pond 21 by water supply line 39, and pressure transmitter pressure gauge 18 and the electric ball valve 20 of fluid pressure in being provided with in order to sense pipeline on described water supply line 39, described flush water pump 17 can adopt self-balance type multistage centrifugal pump, and the pumping of described flush water pump 17 outlet is connected in rinses shunting main line pipeline 40, described flushing shunting main line pipeline 40 separates two and rinses i.e. the first flushing bypass line 41 and the second flushing bypass line 42 of bypass line, and described flushing shunting main line pipeline 40 is connected in process water pond 21 by the bath backflow bypass line 43 with manual ball valve 23, on described flushing shunting main line pipeline 40, be provided with pressure transmitter pressure gauge 24 and the second flowmeter 25 simultaneously, be respectively used to sensing and rinse hydraulic pressure and the flow in shunting main line pipeline 40, on described flushing shunting main line pipeline 40, be also provided with the second check valve 15 simultaneously, preferably described the second check valve 15 separates near two settings of outlet end of rinsing bypass line near rinsing shunting main line pipeline 40, rinse the sparge water reverse backflow of bypass line 42 for preventing from the first flushing bypass line 41 and second.Described first rinses bypass line 41 is connected in the first diverter branch pipeline 4, preferably be connected in the upstream (pipe side wall between pressure transmitter pressure gauge 8 and electric ball valve 9) of pressure transmitter pressure gauge 8 in the first diverter branch pipeline 4, and be provided with the electric ball valve 10 for controlling its sparge water supply in described the first flushing bypass line 41.Described second rinses bypass line 42 is connected in the second diverter branch pipeline 36, preferably be connected in the upstream (pipe side wall between pressure transmitter pressure gauge 33 and electric ball valve 14) of pressure transmitter pressure gauge 33 in the second diverter branch pipeline 36, and be provided with the electric ball valve 32 for controlling its sparge water supply in described the second flushing bypass line 42.For ensureing conduit running safety, on each pipeline, be further also provided with side direction exhaust branch road, described side direction exhaust branch road is provided with normally closed manual ball valve 7,13,31,28,19 simultaneously.Described process water pond 21 is further also connected in water system, and described distribution station also has high low pressure power supply system etc. simultaneously.
Below the delivery method that carries out slurry shunting switching by long-distance slurry pipeline shunt transporting system of the present invention is described in detail.
First the preparatory work before switching is described: before switching, the process water pond of distribution station must store up full water and supply water normal, power supply system is normal, and all measuring instruments are working properly in system, front upstream booster station main pump system is switched in shunting must be working properly.According to actual production process, carry out slurry shunting by distribution station to the first dehydrating plant and the second dehydrating plant and switch the two kinds of situations that conventionally all include, in water switching mode and in ore pulp switching mode, depending primarily on what in the total pipeline of slurry shunting main line, carry is ore pulp slurry or water, in ore pulp, switch and can ensure that slurry is without interruption, and extend valve working life in order to improve, reduce costs, conventionally also adopt first and insert the water of 1 hour in the total pipeline of slurry shunting main line, then in water, shunt to carry and switch, below to adopting these two kinds of switching modes to be explained respectively to the method for the first dehydrating plant and the second dehydrating plant switching conveying respectively.
One, switch to the first dehydrating plant 1
1, switching mode in water (in slurry shunting main line total pipeline 37, within one hour, inserted in advance water, all valves on each pipeline give tacit consent under all in closed condition), comprise the following steps:
(1), the manual ball valve 30(manual ball valve 26 opened on the total pipeline of slurry shunting main line gives tacit consent in closed condition), the numerical value of observing nuclear-magnetism densitometer 29 drops to below 15%, to confirm the slurry shunting main line total pipeline 37 interior water that inserted;
(2), open the main pipeline main entrance valve in the first dehydrating plant 1 and confirm;
(3), open the manual ball valve 6 on the first diverter branch pipeline 4 and electric ball valve 9,11 confirmation in distribution station, the show value of observing pressure transmitter pressure gauge 8, pressure transmitter pressure gauge 27 and pressure transmitter pressure gauge 33, three should approach same numerical value;
(4), close immediately electric ball valve 12 and 14 on the second diverter branch pipeline 36, observe pressure transmitter pressure gauge 33, should be on a declining curve, pressure transmitter pressure gauge 27 and pressure transmitter pressure gauge 8 should be in rising trend, slurry is shunted to main line total pipeline 37 and switch to the first dehydrating plant 1 and carry;
(5) utilize flushing unit to rinse the second diverter branch pipeline, simultaneously, the flush water pump 17 of pretrigger distribution station, motor ventilating fan A and the B of startup flush water pump, open the electric ball valve 20 on water supply line and confirm;
(6), be 60% by the frequency variator Speed Setting of flush water pump 17, start flush water pump 17, observe pressure transmitter pressure gauge 24, ensure that its numerical value is greater than the numerical value of pressure transmitter pressure gauge 33;
(7), open the manual ball valve 34 on the second electric ball valve 32, the second dehydrating plant 2 interior main pipeline main entrance valve and the second diverter branch pipeline 36 rinsing in bypass line 42, and confirm that manual ball valve 23 in electric ball valve 10 in the first flushing bypass line 41 and bath backflow bypass line 43 is in closed condition, observe the numerical value change of pressure transmitter pressure gauge 33, and adjust as required the regime flow that frequency variator velocity amplitude ensures first flow meter 25 and be greater than 230m
3/ h, be less than 300m
3/ h, utilizes the process water in process water pond 21 to rinse the second diverter branch pipeline 36;
(8), start water system to process water pond 21 moisturizings, after the interior main pipeline entrance concentration of the second dehydrating plant 2 drops to 15%, stop flush water pump 17, after filling, process water pond 21 moisturizings stop water system, and close the interior main pipeline of the second dehydrating plant 2 main entrance valve, close the electric ball valve 32 in the second flushing bypass line 42, complete the flushing work to the second diverter branch pipeline in shunting process, slurry is shunted to main line total pipeline 37 simultaneously and switched to the first diverter branch pipeline 4 smoothly.
2, switching mode in ore pulp: (be ore pulp slurry in slurry shunting main line total pipeline 37, under all valves acquiescences on each pipeline all in closed condition), comprises the following steps:
(1), the manual ball valve 30(manual ball valve 26 opened on the total pipeline of slurry shunting main line gives tacit consent in closed condition), observe the second flowmeter 35 on slurry shunting main line total pipeline 37, and the slurry flow that slurry is shunted in the total pipeline of main line is reduced to 200m
3/ h left and right;
(2), open the main pipeline main entrance valve in the first dehydrating plant 1 and confirm;
(3), open the manual ball valve 6 on the first diverter branch pipeline 4 and electric ball valve 9,11 confirmation in distribution station, the show value of observing pressure transmitter pressure gauge 8, pressure transmitter pressure gauge 27 and pressure transmitter pressure gauge 33, three should approach same numerical value;
(4), close immediately electric ball valve 12 and 14 on the second diverter branch pipeline 36, observe pressure transmitter pressure gauge 33, should be on a declining curve, pressure transmitter pressure gauge 27 and pressure transmitter pressure gauge 8 should be in rising trend, observe the second flowmeter 35 on slurry shunting main line total pipeline 37, and the slurry flow that slurry is shunted in the total pipeline of main line is promoted to 270m
3more than/h, thereby being shunted to main line total pipeline 37, slurry switches to the first dehydrating plant transfer ore pulp;
(5) utilize flushing unit to rinse the second diverter branch pipeline 36, simultaneously, the flush water pump 17 of pretrigger distribution station, motor ventilating fan A and the B of startup flush water pump, open the electric ball valve 20 on water supply line and confirm;
(6), be 60% by the frequency variator Speed Setting of flush water pump 17, start flush water pump 17, observe pressure transmitter pressure gauge 24, ensure that its numerical value is greater than the numerical value of pressure transmitter pressure gauge 33;
(7), open the manual ball valve 34 on the second electric ball valve 32, the second dehydrating plant 2 interior main pipeline main entrance valve and the second diverter branch pipeline 36 rinsing in bypass line 42, and confirm that manual ball valve 23 in electric ball valve 10 in the first flushing bypass line 41 and bath backflow bypass line 43 is in closed condition, observe the numerical value change of pressure transmitter pressure gauge 33, and adjust as required the regime flow that frequency variator velocity amplitude ensures first flow meter 25 and be greater than 230m
3/ h, be less than 300m
3/ h, utilizes the process water in process water pond 21 to rinse the second diverter branch pipeline 36;
(8), start water system to process water pond 21 moisturizings, after the interior main pipeline entrance concentration of the second dehydrating plant 2 drops to 15%, stop flush water pump 17, after filling, process water pond 21 moisturizings stop water system, and close the interior main pipeline of the second dehydrating plant 2 main entrance valve, close the electric ball valve 32 in the second flushing bypass line 42, complete the flushing work to the second diverter branch pipeline in shunting process, slurry is shunted to main line total pipeline 37 simultaneously and switched to the first diverter branch pipeline 4 smoothly.
Two, switch to the second dehydrating plant 2, similar with the above-mentioned process of switching to the first dehydrating plant, comprise following two kinds of situations:
1, switching mode in water (in slurry shunting main line total pipeline 37, within one hour, inserted in advance water, all valves on each pipeline give tacit consent under all in closed condition), comprise the following steps:
(1), the manual ball valve 30(manual ball valve 26 opened on the total pipeline of slurry shunting main line gives tacit consent in closed condition), the numerical value of observing nuclear-magnetism densitometer 29 drops to below 15%, to confirm the slurry shunting main line total pipeline 37 interior water that inserted;
(2), open the main pipeline main entrance valve in the second dehydrating plant 2 and confirm;
(3), open the manual ball valve 34 on the second diverter branch pipeline 36 and electric ball valve 12,14 confirmation in distribution station, the show value of observing pressure transmitter pressure gauge 8, pressure transmitter pressure gauge 27 and pressure transmitter pressure gauge 33, three should approach same numerical value;
(4), close immediately electric ball valve 9 and 11 on the first diverter branch pipeline 4 simultaneously, observe pressure transmitter pressure gauge 8, should be on a declining curve, pressure transmitter pressure gauge 27 and pressure transmitter pressure gauge 33 should be in rising trend, slurry is shunted to main line total pipeline 37 and switch to the second dehydrating plant 2 and carry;
(5) utilize flushing unit to rinse the first diverter branch pipeline, simultaneously, the flush water pump 17 of pretrigger distribution station, motor ventilating fan A and the B of startup flush water pump, open the electric ball valve 20 on water supply line and confirm;
(6), be 60% by the frequency variator Speed Setting of flush water pump 17, start flush water pump 17, observe pressure transmitter pressure gauge 24, ensure that its numerical value is greater than the numerical value of pressure transmitter pressure gauge 8;
(7), open the manual ball valve 6 on the first electric ball valve 10, the first dehydrating plant 1 interior main pipeline main entrance valve and the first diverter branch pipeline 4 rinsing in bypass line 41, and confirm that manual ball valve 23 in electric ball valve 32 in the second flushing bypass line 42 and bath backflow bypass line 43 is in closed condition, observe the numerical value change of pressure transmitter pressure gauge 8, and adjust as required the regime flow that frequency variator velocity amplitude ensures first flow meter 25 and be greater than 230m
3/ h, be less than 300m
3/ h, utilizes the process water in process water pond 21 to rinse the first diverter branch pipeline 4;
(8), start water system to process water pond 21 moisturizings, after the interior main pipeline entrance concentration of the first dehydrating plant 1 drops to 15%, stop flush water pump 17, after filling, process water pond 21 moisturizings stop water system, and close the interior main pipeline of the first dehydrating plant 1 main entrance valve, close the electric ball valve 10 in the first flushing bypass line 41, complete the flushing work to the first diverter branch pipeline in shunting process, slurry is shunted to main line total pipeline 37 simultaneously and switched to the second diverter branch pipeline 36 smoothly.
2, switching mode in ore pulp: (be ore pulp slurry in slurry shunting main line total pipeline 37, under all valves acquiescences on each pipeline all in closed condition), comprises the following steps:
(1), the manual ball valve 30(manual ball valve 26 opened on the total pipeline of slurry shunting main line gives tacit consent in closed condition), observe the second flowmeter 35 on slurry shunting main line total pipeline 37, and the slurry flow that slurry is shunted in the total pipeline of main line is reduced to 200m
3/ h left and right;
(2), open the main pipeline main entrance valve in the second dehydrating plant 2 and confirm;
(3), open the manual ball valve 34 on the second diverter branch pipeline 36 and electric ball valve 12,14 confirmation in distribution station, the show value of observing pressure transmitter pressure gauge 8, pressure transmitter pressure gauge 27 and pressure transmitter pressure gauge 33, three should approach same numerical value;
(4), close immediately electric ball valve 9 and 11 on the first diverter branch pipeline 4, observe pressure transmitter pressure gauge 8, should be on a declining curve, pressure transmitter pressure gauge 27 and pressure transmitter pressure gauge 33 should be in rising trend, observe the second flowmeter 35 on slurry shunting main line total pipeline 37, and the slurry flow that slurry is shunted in the total pipeline of main line is promoted to 270m
3more than/h, thereby being shunted to main line total pipeline 37, slurry switches to the second dehydrating plant 2 transfer ore pulps;
(5) utilize flushing unit to rinse the first diverter branch pipeline 4, simultaneously, the flush water pump 17 of pretrigger distribution station, motor ventilating fan A and the B of startup flush water pump, open the electric ball valve 20 on water supply line and confirm;
(6), be 60% by the frequency variator Speed Setting of flush water pump 17, start flush water pump 17, observe pressure transmitter pressure gauge 24, ensure that its numerical value is greater than the numerical value of pressure transmitter pressure gauge 8;
(7), open the manual ball valve 6 on the first electric ball valve 10, the first dehydrating plant 1 interior main pipeline main entrance valve and the first diverter branch pipeline 4 rinsing in bypass line 41, and confirm that manual ball valve 23 in electric ball valve 32 in the second flushing bypass line 42 and bath backflow bypass line 43 is in closed condition, observe the numerical value change of pressure transmitter pressure gauge 8, and adjust as required the regime flow that frequency variator velocity amplitude ensures first flow meter 25 and be greater than 230m
3/ h, be less than 300m
3/ h, utilizes the process water in process water pond 21 to rinse the second diverter branch pipeline 36;
(8), start water system to process water pond 21 moisturizings, after the interior main pipeline entrance concentration of the first dehydrating plant 1 drops to 15%, stop flush water pump 17, after filling, process water pond 21 moisturizings stop water system, and close the interior main pipeline of the first dehydrating plant 1 main entrance valve, close the electric ball valve 10 in the first flushing bypass line 41, complete the flushing work to the first diverter branch pipeline in shunting process, slurry is shunted to main line total pipeline 37 simultaneously and switched to the second diverter branch pipeline 36 smoothly.
According to mode of execution of the present invention; can be satisfactory in Slurry Pipeline Transportation system, realize ore pulp long-distance, the online function that branches to different location of switching of high-lift, high pressure; greatly improve economic benefit; reduce cost; energy-saving and emission-reduction are realized; protect environment, promoted sustainable development.
Below be only that the preferred embodiment of the present invention is described; technological scheme of the present invention is not limited to this; the any known distortion that those skilled in the art do on the basis of major technique design of the present invention all belongs to the claimed technology category of the present invention, and the concrete protection domain of the present invention is as the criterion with the record of claims.
Claims (10)
1. a long-distance slurry pipeline shunt transporting system, it is characterized in that, comprise: slurry shunting main line total pipeline (37), the first diverter branch pipeline (4), the second diverter branch pipeline (36), flush water pump (17), water supply line (39), process water pond (21), rinse shunting main line pipeline (40), first rinses bypass line (41), second rinses bypass line (42) and some valves, described slurry shunting main line total pipeline (37) is connected in described the first diverter branch pipeline (4) and the second diverter branch pipeline (36), described the first diverter branch pipeline (4) is connected in the first dehydrating plant (1), described the second diverter branch pipeline (36) is connected in the second dehydrating plant (2), the pumping entrance of described flush water pump (17) is connected in described process water pond (21) by water supply line (39), the pumping outlet of described flush water pump (17) is connected in described flushing shunting main line pipeline (40), described flushing shunting main line pipeline (40) is connected in described first and rinses bypass line (41) and the second flushing bypass line (42), described first rinses bypass line (41) is connected in described the first diverter branch pipeline (4), described second rinses bypass line (42) is connected in described the second diverter branch pipeline (36), on described each pipeline, be provided with valve.
2. long-distance slurry pipeline shunt transporting system according to claim 1, it is characterized in that, also include booster station and technique deposition tank (22), the entry end of described slurry shunting main line total pipeline (37) is connected in described booster station (3), the outlet end of described slurry shunting main line total pipeline (37) is connected in described the first diverter branch pipeline (4) and the second diverter branch pipeline (36) by threeway simultaneously, described slurry shunting main line total pipeline (37) is connected in described technique deposition tank (22) by the slurry backflow bypass line (38) with manual ball valve (26).
3. long-distance slurry pipeline shunt transporting system according to claim 2, it is characterized in that, on described slurry shunting main line total pipeline (37), be provided with first flow meter (35), manual ball valve (30), pressure transmitter pressure gauge (27), nuclear-magnetism densitometer (29) and the first check valve (16), described the first check valve (16) is near the outlet end setting of slurry shunting main line total pipeline (37), described nuclear-magnetism densitometer (29) is arranged at the upstream of the first check valve (16), described pressure transmitter pressure gauge (27) is arranged at the upstream of nuclear-magnetism densitometer (29), described manual ball valve (30) is arranged at the upstream of pressure transmitter pressure gauge (27), described first flow meter (35) is arranged at the upstream of manual ball valve (30).
4. long-distance slurry pipeline shunt transporting system according to claim 3, it is characterized in that, on described the first diverter branch pipeline (4), be provided with manual ball valve (6), the first electric ball valve group and pressure transmitter pressure gauge (8), described manual ball valve (6) is near the outlet end setting of the first diverter branch pipeline (4), described the first electric ball valve group is near the entry end setting of the first diverter branch pipeline (4), and described pressure transmitter pressure gauge (8) is arranged between described manual ball valve (6) and the first electric ball valve group; On described the second diverter branch pipeline (36), be provided with manual ball valve (34), the second electric ball valve group and pressure transmitter pressure gauge (33), described manual ball valve (34) is near the outlet end setting of the second diverter branch pipeline (36), described the second electric ball valve group is near the entry end setting of the second diverter branch pipeline (36), and described pressure transmitter pressure gauge (33) is arranged between described manual ball valve (34) and the second electric ball valve group.
5. long-distance slurry pipeline shunt transporting system according to claim 4, it is characterized in that, on described water supply line (39), be provided with pressure transmitter pressure gauge (18) and electric ball valve (20), described flushing shunting main line pipeline (40) is connected in described process water pond (21) by the bath backflow bypass line (43) with manual ball valve (23), on described flushing shunting main line pipeline (40), be provided with pressure transmitter pressure gauge (24), the second flowmeter (25) and the second check valve (15), described the second check valve (15) is near the outlet end setting of rinsing shunting main line pipeline (40), described first rinses bypass line (41) is connected in the pipe side wall between pressure transmitter pressure gauge (8) and the first electric ball valve group in the first diverter branch pipeline (4), and rinse in bypass line (41) and be provided with electric ball valve (10) described first, described second rinses bypass line (42) is connected in the pipe side wall between pressure transmitter pressure gauge (33) and the second electric ball valve group in the second diverter branch pipeline (36), and rinse in bypass line (42) and be provided with electric ball valve (32) described second.
6. according to the long-distance slurry pipeline shunt transporting system described in claim 1-5 any one, it is characterized in that, on each pipeline, be provided with the side direction exhaust branch road with manual ball valve, described slurry shunting main line total pipeline (37), described the first diverter branch pipeline (4) and described the second diverter branch pipeline (36) are crossed adpting flange (5) by multistage device for cleaning pipeline and are formed by connecting.
7. according to the long-distance slurry pipeline shunt transporting system described in claim 1-5 any one, it is characterized in that, described process water pond (21) is connected in water system, and described flush water pump (17) adopts self-balance type multistage centrifugal pump.
8. a delivery method is switched in the slurry shunting of carrying out based on long-distance slurry pipeline shunt transporting system claimed in claim 5, it is characterized in that, comprises the following steps:
(1), select to switch the dehydration website of conveying, and definite switching mode;
(2), open the valve on the total pipeline of slurry shunting main line;
(3), open the pipeline main entrance valve in to be switched dehydration website and confirm;
(4), open the valve connecting on the diverter branch pipeline of described to be switched dehydration website, and close the valve on other diverter branch pipelines, slurry is shunted to main line total pipeline and switches to to be switched dehydration website slurry body;
(5), utilize flush water pump to rinse other diverter branch pipelines.
9. delivery method is switched in slurry according to claim 8 shunting, it is characterized in that, when selecting to switch while carrying and adopt in water switching mode to the first dehydrating plant (1), specifically comprises the following steps:
(1), open the manual ball valve (30) on the total pipeline of slurry shunting main line, the numerical value of observing nuclear-magnetism densitometer (29) drops to below 15%;
(2), open the main pipeline main entrance valve in the first dehydrating plant (1) and confirm;
(3), open manual ball valve (6) and the first electric ball valve group on the first diverter branch pipeline (4), and close the second electric ball valve group on the second diverter branch pipeline (36), slurry is shunted to main line total pipeline (37) switching and carry to the first dehydrating plant (1);
(4), start flush water pump (17), open the electric ball valve (20) on water supply line, and ensure that the numerical value of the pressure transmitter pressure gauge (24) on flushing shunting main line pipeline (40) is greater than the numerical value of the pressure transmitter pressure gauge (33) on the second diverter branch pipeline (36);
(5), open the manual ball valve (34) on the second electric ball valve (32), the second dehydrating plant (2) interior main pipeline main entrance valve and the second diverter branch pipeline (36) rinsing in bypass line (42), and close the manual ball valve (23) in electric ball valve (10) in the first flushing bypass line (41) and bath backflow bypass line (43), and adjust flush water pump and make the regime flow of first flow meter (25) be greater than 230m
3/ h, be less than 300m
3/ h, utilizes the process water in process water pond (21) to rinse the second diverter branch pipeline (36);
(6), after in the second dehydrating plant (2), main pipeline entrance concentration drops to 15%, stop described flush water pump (17), close the interior main pipeline of the second dehydrating plant (2) main entrance valve, close the electric ball valve (32) in the second flushing bypass line (42).
10. delivery method is switched in slurry according to claim 8 shunting, it is characterized in that, when selecting to switch while carrying and adopt in ore pulp switching mode to the first dehydrating plant (1), specifically comprises the following steps:
(1), open the manual ball valve (30) on the total pipeline of slurry shunting main line, observe the second flowmeter (35) on slurry shunting main line total pipeline (37), and the slurry flow that slurry is shunted in the total pipeline of main line is reduced to 200m
3/ h left and right;
(2), open the main pipeline main entrance valve in the first dehydrating plant (1) and confirm;
(3), open manual ball valve (6) and the first electric ball valve group on the first diverter branch pipeline (4), and close the second electric ball valve group on the second diverter branch pipeline (36), observe the second flowmeter (35) on slurry shunting main line total pipeline (37), and the slurry flow that slurry is shunted in the total pipeline of main line is promoted to 270m
3more than/h, realize and slurry is shunted to main line total pipeline (37) switch to the first dehydrating plant (1) transfer ore pulp;
(4), start flush water pump (17), open the electric ball valve (20) on water supply line, and ensure that the numerical value of the pressure transmitter pressure gauge (24) on flushing shunting main line pipeline (40) is greater than the numerical value of the pressure transmitter pressure gauge (33) on the second diverter branch pipeline (36);
(5), open the manual ball valve (34) on the second electric ball valve (32), the second dehydrating plant (2) interior main pipeline main entrance valve and the second diverter branch pipeline (36) rinsing in bypass line (42), and close the manual ball valve (23) in electric ball valve (10) in the first flushing bypass line (41) and bath backflow bypass line (43), and adjust flush water pump and make the regime flow of first flow meter (25) be greater than 230m
3/ h, be less than 300m
3/ h, utilizes the process water in process water pond (21) to rinse the second diverter branch pipeline (36);
(6), after in the second dehydrating plant (2), main pipeline entrance concentration drops to 15%, stop described flush water pump (17), close the interior main pipeline of the second dehydrating plant (2) main entrance valve, close the electric ball valve (32) in the second flushing bypass line (42).
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