CN105046891A - Conveying pipeline blockage detection device and system - Google Patents
Conveying pipeline blockage detection device and system Download PDFInfo
- Publication number
- CN105046891A CN105046891A CN201510426433.8A CN201510426433A CN105046891A CN 105046891 A CN105046891 A CN 105046891A CN 201510426433 A CN201510426433 A CN 201510426433A CN 105046891 A CN105046891 A CN 105046891A
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- Prior art keywords
- conveyance conduit
- draft tube
- taking port
- pressure
- air taking
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/187—Machine fault alarms
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Air Transport Of Granular Materials (AREA)
Abstract
The invention relates to a conveying pipeline blockage detection device and system. At least one intake pipe which is used for continuously sending gas into a conveying pipeline is arranged on the side wall of the conveying pipeline. A gas supply port of the intake pipe is arranged in the conveying pipeline. The direction of the gas supply port faces a material conveying direction. The intake pipe further comprises a pressure detecting device which is used for measuring gas pressure in the intake pipe. If a measurement result of the pressure sensor overruns, pipeline blockage is determined. The conveying pipeline blockage detection device and system have the advantages of simple structure and obvious effect, and can solve the problem that conveying pipeline blockage cannot be timely detected when solid particulate materials are conveyed in the pipeline.
Description
Technical field
The present invention relates to a kind of conveyance conduit blockage detector and system, particularly relate to a kind of conveyance conduit blockage detector and system of solid particulate material.
Background technology
In industries such as metallurgy, building materials, ore is also needing to be sent in flour mill the solid particle grinding to form and need in particle size range after crusher in crushing.In the process that the ore after preliminary fragmentation is carried to ore flour mill, the mode of Cemented filling is adopted to realize, but due to the profile of ore, the impact of the dry wet factor such as degree, conveying belt travelling speed, often cause the phenomenon producing blocking in conveyance conduit.If can not Timeliness coverage processing accordingly to the blocking produced, then ore can be made to block sustainable existence, and then cause conveying equipment to damage, ore spilling even can occur, the accident caused casualties.
In the prior art, the detection method adopted has: (1) acoustic wave detection, at the head and the tail two ends of conveyance conduit, low-frequency sound wave emitter, sonic sensor are installed, also have data acquisition and pretreatment unit, by detecting the blocking of conveyance conduit to acoustic signals process, this measure requires higher, to sonicated algorithm requirement more complicated to software merit rating, and the device that detection system needs is more, cost is higher, is mainly used in the detection to long-distance pipe; (2) pressure detection method, on the tube wall of conveyance conduit, (inner or outer) is provided with multiple pressure unit, in the transmission of ore slurry, tube wall stress is even, line clogging can be monitored preferably by the pressure reduction change of several pressure detection point, but the ore of non-pulpous state is carried, because ore shape, dry wet degree varies sample cause tube wall stress uneven, Detection results is undesirable, the detection blocked when this measure is used for ore slurry pipeline conveying.
Therefore, this difficult problem that can not by time, effectively detect when a kind of conveyance conduit blockage detector solves the blocking of solid matter conveyance conduit is needed badly.
Summary of the invention
The object of this invention is to provide a kind of conveyance conduit blockage detector and system, the problem that can not by time, effectively detect during in order to solve the blocking of solid granular material conveying pipe.
For achieving the above object, the solution of the present invention comprises:
A kind of conveyance conduit blockage detector, it is characterized in that, comprise at least one for arrange on conveyance conduit sidewall to be measured, continue the draft tube of supplying gas to conveyance conduit inside, described draft tube one end in conveyance conduit is provided with air taking port, air taking port opening direction is towards mass transport direction, also comprising one in draft tube for measuring the pressure-detecting device of gaseous tension in draft tube, when described pressure transducer measurement result transfinites, being judged as line clogging.Air taking port is hydraucone, and air taking port is provided with filter screen.
Further, be provided with a block in the position of draft tube throughput direction dorsad, this block has a dip plane, and the vergence direction of this dip plane is the direction of rising along throughput direction.
Further, pressure-detecting device is pressure switch, pressure switch is provided with a normally closed contact and a normally opened contact, and normally closed contact string is located at a normal running indicator (L1) and indicates in loop, and described normally opened contact string is located in a warning device loop.Warning device is the acoustic-optic alarm be made up of hummer (D) and alarm lamp (L2) parallel connection.
A kind of conveyance conduit clogging detecting system, comprise conveyance conduit, conveyance conduit sidewall is provided with at least one for continuing the draft tube of supplying gas to conveyance conduit inside, draft tube one end in conveyance conduit is provided with air taking port, air taking port opening direction is towards mass transport direction, also comprising one in draft tube for measuring the pressure-detecting device of gaseous tension in draft tube, when described pressure transducer measurement result transfinites, being judged as line clogging.Air taking port is hydraucone, and air taking port is provided with filter screen.
Further, be provided with a block in the position of draft tube throughput direction dorsad, this block has a dip plane, and the vergence direction of this dip plane is the direction of rising along throughput direction.
Further, pressure-detecting device is pressure switch, pressure switch is provided with a normally closed contact and a normally opened contact, and normally closed contact string is located at a normal running indicator (L1) and indicates in loop, and described normally opened contact string is located in warning device (L2, a D) loop.Warning device is the acoustic-optic alarm be made up of audible alarm unit and the parallel connection of light warning device.
In the present invention, draft tube continues air inlet in conveyance conduit, to the pressure durations monitoring in draft tube pipe, when blocking occurs conveyance conduit, pressure-detecting device detects that suction press becomes large fast, thus the blocking of conveyance conduit can be detected in time, rapidly.Described conveyance conduit pick-up unit, easy to operate, structure is simple, but successful, can be good at solving solid particulate material and can not detect when pipeline transportation the problem that conveyance conduit blocks in time.
Accompanying drawing explanation
Fig. 1 is the conveyance conduit obstruction alarm device schematic diagram of embodiment 1;
Fig. 2 is the conveyance conduit obstruction alarm device schematic diagram of embodiment 2;
Fig. 3 is the conveyance conduit obstruction alarm device schematic diagram of embodiment 3;
Fig. 4 is the conveyance conduit obstruction alarm device schematic diagram of embodiment 4.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described in detail.
Conveyance conduit clogging detecting system embodiment 1
Conveyance conduit blockage detector when blocking is there is in lower mask body introduction in flour mill ores lifting pipeline.
As shown in Figure 1, detection system comprises conveyance conduit A and pick-up unit, pick-up unit comprises an a draft tube C and pressure-detecting device B, described draft tube C enters in conveyance conduit A through the sidewall of conveyance conduit A, the part of described draft tube C in ores lifting pipe A pipe, draft tube C head feeding gas port is horn-like and is provided with screen pack, prevent slag, rubbles etc. enter draft tube and cause plug for air inlet pipe, direction of transfer when air taking port opening direction normally runs with ores lifting pipeline is consistent, as can be seen from Figure 1, when conveyance conduit normally works, slag rock glacier is to for left, as number in the figure 4, draft tube air taking port direction is also left.Described draft tube C manages on the tube wall of outer part at delivery pipe A and is provided with pressure-detecting device.
Pressure-detecting device is a three-wire system pressure switch ,+24V line 1 termination power supply the positive pole of three-wire system pressure switch, N24V line 2 termination power supply negative pole, the signal input part of signal wire 3 termination controller.Normally closed contact, normal run indicator L1 are arranged between+24V line 1 and N24V line 2, form loop I when conveyance conduit normally runs; Normally opened contact, warning device are arranged between+24V line 1 and signal wire 3, and form a loop II when conveyance conduit blocking produces and reports to the police, warning device is made up of hummer D and yellow alarm pilot lamp L2 parallel connection by one.
Draft tube continues air feed in conveyance conduit, when conveyance conduit normally works, because draft tube air-flow outflow direction is consistent with ores lifting direction, so draft tube overpressure is less, do not reach the force value (force value during action of three-wire system pressure switch can regulate voluntarily according to actual conditions) of three-wire system pressure switch action, now three-wire system pressure switch is failure to actuate, and loop I is effective loop, normal run indicator L1 work, represents that conveyance conduit normally works, when there is blocking in conveyance conduit, because draft tube continues air feed, so the gas entered in delivery pipe also can produce certain blocking, thus gaseous tension in draft tube pipe is increased, when pressure reaches the working value of three-wire system pressure switch, three-wire system pressure switch action---normally closed contact disconnects, normally opened contact closes, loop II becomes effective loop, now acoustic-optic alarm action---alarm lamp L2 is bright, hummer sends alarm sound, alerting signal outputs to the input end of controller simultaneously, controller is made to produce corresponding safeguard measure, realize the alert process to conveyance conduit blocking.
Continue air feed to air taking port, the pump of draft tube UNICOM can be leaned on to realize, and pump is to air inlet tube pump gas, and gas flow is as shown in number in the figure 5.
Adopt the mode continuing to supply gas in conveyance conduit, can not only realize the accurate detection blocked, itself is also beneficial to the removal of dirt on air taking port, makes it not easily to get clogged.
As other embodiments, pressure-detecting device is the pressure transducer sending simulating signal, signal is sent into CPU or backstage PC process.
Above embodiment gives the application of described pipe detection device in flour mill ores lifting, as other embodiments, can also be applied in the pipeline transportation of sandstone, pebble coal, great Sha, grain etc.
Conveyance conduit clogging detecting system embodiment 2
Differently from embodiment 1 to be, conveyance conduit is provided with multiple draft tube, draft tube is provided with pressure-detecting device, as shown in Figure 2, wherein, in each draft tube on conveyance conduit, the working method of pressure-detecting device and embodiment 1, the working method of draft tube, pressure-detecting device is just the same.Unlike, the system of embodiment 2 roughly can locate blocking region.Such as, the draft tube F1 in Fig. 2 produces alerting signal, and other draft tube F2, F3 all do not produce alerting signal, then can judge that the position blocked is between draft tube F1 and F2; Equally, when draft tube F1 and F2 all produces alerting signal, and draft tube F3 does not produce alerting signal, then can judge that the position blocked is between draft tube F2 and F3; When F1, F2, F3 tri-draft tube all produce alerting signal, then can judge that the position blocked is positioned at after draft tube F3.
Conveyance conduit clogging detecting system embodiment 3
Only be from the different of embodiment 1, draft tube C one end in conveyance conduit A, is provided with protective device E.As shown in Figure 3; protective device E is a block shape device tilted; be located at the position of draft tube throughput direction dorsad, its inclination conditions rises gradually in direction when normally carrying along convey materials, and the direction flowed to against convey materials slopes down on the tube wall of conveyance conduit.Block E is used for when material is normally carried, and the draft tube C in protection conveyance conduit A, the material impact avoiding this this part of draft tube C to be transferred, collision cause damage.
Conveyance conduit clogging detecting system embodiment 4
Only be that the position of pressure-detecting device is different from the different of embodiment 1, as Fig. 4, pressure-detecting device is located in the draft tube C in conveyance conduit, due to the connectivity of gas, also the change of air inlet overpressure can be measured, thus when blocking occurs conveyance conduit, blockage can be detected timely and effectively, produce and report to the police.
Be presented above the concrete embodiment that the present invention relates to theme, but the present invention is not limited to described embodiment.Under the thinking that the present invention provides; the mode easily expected to those skilled in the art is adopted to convert the technological means in above-described embodiment, replace, revise; and the effect played goal of the invention that is substantially identical with the relevant art means in the present invention, that realize is also substantially identical; the technical scheme of such formation is carried out fine setting to above-described embodiment and is formed, and this technical scheme still falls within the scope of protection of the present invention.
Claims (10)
1. a conveyance conduit blockage detector, it is characterized in that, comprise at least one for arrange on conveyance conduit sidewall to be measured, continue the draft tube of supplying gas to conveyance conduit inside, described draft tube one end in conveyance conduit is provided with air taking port, air taking port opening direction is towards mass transport direction, also comprising one in draft tube for measuring the pressure-detecting device of gaseous tension in draft tube, when described pressure transducer measurement result transfinites, being judged as line clogging.
2. conveyance conduit blockage detector according to claim 1, is characterized in that, described air taking port is hydraucone, and air taking port is provided with filter screen.
3. conveyance conduit blockage detector according to claim 1, is characterized in that, be provided with a block in the position of draft tube throughput direction dorsad, this block has a dip plane, and the vergence direction of this dip plane is the direction of rising along throughput direction.
4. conveyance conduit blockage detector according to claim 1, it is characterized in that, described pressure-detecting device is pressure switch, pressure switch is provided with a normally closed contact and a normally opened contact, normally closed contact string is located at a normal running indicator (L1) and indicates in loop, and described normally opened contact string is located in a warning device loop.
5. conveyance conduit blockage detector according to claim 4, is characterized in that, described warning device is the acoustic-optic alarm be made up of hummer (D) and alarm lamp (L2) parallel connection.
6. a conveyance conduit clogging detecting system, comprise conveyance conduit, it is characterized in that, conveyance conduit sidewall is provided with at least one for continuing the draft tube of supplying gas to conveyance conduit inside, draft tube one end in conveyance conduit is provided with air taking port, and air taking port opening direction, towards mass transport direction, also comprises one for measuring the pressure-detecting device of gaseous tension in draft tube in draft tube, when described pressure transducer measurement result transfinites, be judged as line clogging.
7. conveyance conduit clogging detecting system according to claim 6, is characterized in that, described air taking port is hydraucone, and air taking port is provided with filter screen.
8. conveyance conduit clogging detecting system according to claim 6, is characterized in that, be provided with a block in the position of draft tube throughput direction dorsad, this block has a dip plane, and the vergence direction of this dip plane is the direction of rising along throughput direction.
9. conveyance conduit clogging detecting system according to claim 6, it is characterized in that, described pressure-detecting device is pressure switch, pressure switch is provided with a normally closed contact and a normally opened contact, normally closed contact string is located at a normal running indicator (L1) and indicates in loop, and described normally opened contact string is located in warning device (L2, a D) loop.
10. conveyance conduit clogging detecting system according to claim 9, is characterized in that, described warning device is the acoustic-optic alarm be made up of audible alarm unit and the parallel connection of light warning device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510426433.8A CN105046891A (en) | 2015-07-20 | 2015-07-20 | Conveying pipeline blockage detection device and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510426433.8A CN105046891A (en) | 2015-07-20 | 2015-07-20 | Conveying pipeline blockage detection device and system |
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| CN105046891A true CN105046891A (en) | 2015-11-11 |
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| CN201510426433.8A Pending CN105046891A (en) | 2015-07-20 | 2015-07-20 | Conveying pipeline blockage detection device and system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107069605A (en) * | 2015-12-13 | 2017-08-18 | 青岛智享专利技术开发有限公司 | Fire safety radiating spool |
| CN107234007A (en) * | 2017-06-23 | 2017-10-10 | 湖南中工矿业工程技术有限公司 | A kind of automatic fault detection microvesicle rifle and detection and control method |
| CN110988274A (en) * | 2019-12-27 | 2020-04-10 | 深圳市无眼界科技有限公司 | Method and device for detecting air passage blockage of pump-suction type gas detector |
| CN112129339A (en) * | 2020-09-14 | 2020-12-25 | 深圳供电局有限公司 | Pipeline blockage detection device |
| CN113483948A (en) * | 2021-07-13 | 2021-10-08 | 无锡威孚力达催化净化器有限责任公司 | Differential pressure pipe detection device and method |
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| US6661514B1 (en) * | 2000-02-17 | 2003-12-09 | Vansco Electronics Ltd. | Tube blockage monitor |
| CN1587942A (en) * | 2004-09-23 | 2005-03-02 | 上海电力学院 | Method and device for measurnig multiple phase flow pressure |
| CN101704453A (en) * | 2009-11-16 | 2010-05-12 | 清华大学 | Powder pneumatic conveying system with coexistence of dilute and dense phases |
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2015
- 2015-07-20 CN CN201510426433.8A patent/CN105046891A/en active Pending
Patent Citations (5)
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| US6661514B1 (en) * | 2000-02-17 | 2003-12-09 | Vansco Electronics Ltd. | Tube blockage monitor |
| CN1587942A (en) * | 2004-09-23 | 2005-03-02 | 上海电力学院 | Method and device for measurnig multiple phase flow pressure |
| CN101704453A (en) * | 2009-11-16 | 2010-05-12 | 清华大学 | Powder pneumatic conveying system with coexistence of dilute and dense phases |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107069605A (en) * | 2015-12-13 | 2017-08-18 | 青岛智享专利技术开发有限公司 | Fire safety radiating spool |
| CN107069605B (en) * | 2015-12-13 | 2018-10-19 | 朱双海 | Fire safety heat dissipation spool |
| CN107234007A (en) * | 2017-06-23 | 2017-10-10 | 湖南中工矿业工程技术有限公司 | A kind of automatic fault detection microvesicle rifle and detection and control method |
| CN110988274A (en) * | 2019-12-27 | 2020-04-10 | 深圳市无眼界科技有限公司 | Method and device for detecting air passage blockage of pump-suction type gas detector |
| CN112129339A (en) * | 2020-09-14 | 2020-12-25 | 深圳供电局有限公司 | Pipeline blockage detection device |
| CN112129339B (en) * | 2020-09-14 | 2022-02-15 | 深圳供电局有限公司 | Pipeline blockage detection device |
| CN113483948A (en) * | 2021-07-13 | 2021-10-08 | 无锡威孚力达催化净化器有限责任公司 | Differential pressure pipe detection device and method |
| CN113483948B (en) * | 2021-07-13 | 2023-09-12 | 无锡威孚力达催化净化器有限责任公司 | Differential pressure tube detection device and method |
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Application publication date: 20151111 |
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