CN103738607A - Safety protection device of center-inerting pipe type coal storage silo - Google Patents
Safety protection device of center-inerting pipe type coal storage silo Download PDFInfo
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- CN103738607A CN103738607A CN201310146916.3A CN201310146916A CN103738607A CN 103738607 A CN103738607 A CN 103738607A CN 201310146916 A CN201310146916 A CN 201310146916A CN 103738607 A CN103738607 A CN 103738607A
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- coal storage
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- storage silo
- silo
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Abstract
The invention discloses a safety protection device of a center-inerting pipe type coal storage silo. The safety protection device comprises the coal storage silo, a pipe type air charging device (2), automatic gas locking funnel devices (3) and automatic pressure relief devices (4). The pipe type air charging device (2) is arranged in the center of the coal storage silo, the automatic gas locking funnel devices (3) are arranged at the top of the coal storage silo so as to bring convenience to feeding to the coal storage silo, and the automatic pressure relief devices (4) are evenly arranged at the top of the coal storage silo.
Description
Technical field
The present invention relates to a kind of center inerting tubular type silo safty fender guard; this device is mainly used in colliery, Coal Chemical Industry, thermal powerplant, smelting iron and steel factory, coal blending center etc. and need to stores the place of a large amount of coals, so that the coal storage silo of a kind of safe and reliable, no dust pollution, the loss of reduction coal storage to be provided.
Background technology
Current coal storage silo is mostly diameter and reaches 10-20 rice, the large-scale silo of high 40 meters, and material is placed in such silo, and after long-term storage, material can discharge some sulfur-bearings, contain CH
4fire gases.These gases are a large amount of enrichments of meeting in silo, and the burning-point of coal is lower simultaneously, when coal is sent out slowly reaction generation nature in silo, if the fire gases in silo reaches finite concentration, are exactly presence of fire blast, cause occurring safety misadventure.
In order to overcome the above problems, generally adopt at present the mode (for example nitrogen) that is inwardly filled with unreactable gas at silo outer wall, thereby oxygen concentration and the fire gases concentration of miscellaneous gas in reduction silo, make silo inside remain on transformation point that blast occurs once.In order to realize such target, prior art is to set air-filled pore at the outer wall of silo, from air-filled pore to silo in nitrogen injection.This method reduces oxygen concentration and the fire gases concentration of miscellaneous gas in silo to a great extent, thereby has reduced the probability of blasting.
Publication number is the patent of invention of CN102303758A; it discloses a kind of coal storage silo safety system; in this system on silo wall top, discharge conduit is installed around silo wall wall middle part, silo bottom; when detecting in silo that temperature or imflammable gas concentration reach alarming value; start discharge conduit and in silo, discharge unreactable gas with certain flow, thereby reduce the possibility that blast occurs.
Publication number is that the patent of invention of CN101559863A discloses a kind of silo inertia protection device; this device is provided with to the device that discharges unreactable gas in coal storage silo; this device comprises that two kinds to the mode that discharges unreactable gas in coal storage silo, comprises 1, the inflation of hoop multi-point: inerting gas is filled with highly purified inerting gas as inflation inlet to silo with multiple holes that have certain intervals on inner multi-point inflation ring.Poroid can be round, the various shape such as grade of side.2, hoop continous way inflation: inerting gas can only be with fixed position place embedded steel tube as inflation inlet, is filled with highly purified inerting gas to each absolute altitude place of silo continuous uniform.
The disclosed technical scheme of foregoing invention patent not gets on to solve spontaneous combustion problem from essence, and resources and energy consumption is large.Reason is as follows:
1, prior art is injected inert gas by outside to inside, can not control the inflammable dangerous situation in centre in storehouse.
2, silo is large-scale storing equipment, material (coal cinder) is also the bulk that profile is larger, between material and bulkhead, exists space, from outer wall, is filled with inert gas, can make inert gas along with running off to Cang Ding in space, at this moment in the miscellaneous gas of Cang Ding, can produce C
2o, CH
4and smog.
3, envelope is not closed at the top of existing silo, and induction opening below can be connected with air gate above, thereby forms flue in silo, once silo is inner, burning occurs or explode, and flue plays combustion-supporting effect on the contrary, even causes occurring larger accident.
4, the miscellaneous gas of existing silo discharges equal manual emission, needs the regular Artificial Release of operator venting body, operates inaccurately, and labor content is large, if there is dangerous situation to can not get real-time monitoring.
Summary of the invention
Object of the present invention, is to provide a kind of center inerting tubular type coal storage silo safety protection device, thereby improves the safety of coal storage silo.The present invention adopts following technical proposal:
A kind of center inerting tubular type coal storage silo safety protection device; comprise coal storage silo; tubular type gas filled device; automatic gas-locking funnel device; automatic pressure relief device; tubular type gas filled device is arranged on coal storage silo middle position, and automatic gas-locking funnel device is arranged on coal storage silo top to be silo feeding, and automatic pressure relief device is evenly arranged in coal storage silo top.
This center inerting tubular type coal storage silo safety protection device also comprises sealing screw charging gear, and sealing helixes feed equipment is arranged on the belt conveyor cylinder below to coal storage silo convey materials.
As aforementioned center inerting tubular type coal storage silo safety protection device; wherein tubular type gas filled device is from through top, coal storage silo bottom; this tubular type gas filled device comprises multiple identical tubular type parts; multiple tubular type parts are stitched together and form tubular type gas filled device, and each tubular type parts are provided with inert gas and discharge nozzle.
As aforementioned center inerting tubular type coal storage silo safety protection device; wherein automatic gas-locking funnel device is arranged on the belt conveyor both sides to coal storage silo convey materials; this automatic gas-locking funnel device comprises cover plate, hopper side walls, feeding mouth and the discharging opening being connected with silo feeding mouth; cover plate and hopper side walls are hinged; hopper side walls is hinged with a cylinder; the cylinder other end promotes cover plate and overturns along hinged place, realizes opening with airtight of inlet point.
As aforementioned center inerting tubular type coal storage silo safety protection device, wherein automatic pressure relief device top is provided with a closing plate, and sealing plate is connected with the cylinder being arranged in automatic pressure relief device; Closing plate below is provided with exhaust gear, and automatic pressure relief device sidewall is provided with louver.
As aforementioned center inerting tubular type coal storage silo safety protection device; wherein sealing screw charging gear is arranged on the belt conveyor cylinder below to coal storage silo convey materials; sealing helixes feed equipment comprises an exit skirt; exit skirt below is provided with the spiral pusher rod of horizontal positioned; spiral pusher rod exit side is provided with discharging elbow, and the discharging opening of discharging elbow is provided with the weight lid connecting by rotating shaft.
Advantage of the present invention is:
(1) by the tubular type gas filled device that is arranged on coal storage silo middle position, to coal storage silo, discharge unreactable gas, because unreactable gas is from the diffusion around of silo mediad, therefore fire gases in silo can thoroughly be got rid of, be solved to unreactable gas diffusion evenly,, explosive mixture body.
(2) silo adopts sealing screw charging gear to carry out feed, and feed is automatic, and good airproof performance is provided with weight lid, both can realize screw feeding, has realized again the sealing to silo.Therefore silo can not produce flue, has improved silo safty.
(3) center inerting tubular type gas filled device of the present invention adopts split-type design, manufactures simply, in instrument, gauge pipe, installs, easy to assembly, is convenient to maintenance.
(4) automatic in the present invention, gas-operated lock gas funnel device improves on the basis of existing weight hammer type lock gas funnel, be provided with air-cylinder type and open and close, improved sealing intensity, reduce material friction, both can realize automatic lid closing/opening charging, realize again the sealing to silo.
Accompanying drawing explanation
Inerting tubular type coal storage silo safety protection device schematic diagram centered by Fig. 1 a;
Inerting tubular type coal storage silo schematical top view centered by Fig. 1 b;
Fig. 2 is tubular type gas filled device schematic diagram;
Fig. 3 is automatic gas-locking funnel device schematic diagram;
Fig. 4 is automatic pressure relief device schematic diagram;
Fig. 5 is sealing screw charging gear schematic diagram.
The specific embodiment
Inerting tubular type coal storage silo safety protection device schematic diagram centered by Fig. 1.Center inerting tubular type coal storage silo 1 diameter is 10-20 rice, high 40 meters.Silo top is provided with automatic gas-locking funnel device 3, automatic pressure relief device 4 and sealing screw charging gear 5, and silo central interior position is provided with tubular type gas filled device 2.Silo over top has the belt transmission device BELT that transports material.Automatic gas-locking funnel device is arranged on belt transmission device both sides, and the every side in every storehouse arranges 3-4, the material of sending here for receiving belt transmission device, and silo mainly relies on this automatic gas-locking funnel device charging.Sealing screw charging gear is arranged on the tail end of belt transmission device, is also belt/roller below, for receiving material remaining on belt.Automatic pressure relief device is evenly distributed on silo top pressure relief opening, can be 4-8.
Fig. 2 is tubular type gas filled device schematic diagram.Take at the bottom of storehouse-silo of the 40 meters of height in storehouse top is as example, tubular type gas filled device 2 is highly 40 meters, it comprises multiple identical tubular type parts 21, each tubular type parts can be that 1-6 rice is high, for example, be 4 meters high, now tubular type parts have 10 joints.Tubular type parts can splice, and middle communication port connects with inside flange 22, and the two ends of the tubular type gas filled device that spliced tubular type parts form are airtight.Each tubular type component side walls is evenly distributed with some inert gas and discharges nozzles 23, and inert gas discharges nozzle all by solenoid control switch, and electromagnetic valve is by master controller control, thereby realizes single-point hierarchical control.
Center inerting tubular type coal storage silo also comprises sampling setup.Sampling setup is arranged on the indoor bottom surface of silo, and layering is provided with multiple sampling points inside tubular type gas filled device, can be by sampling point the imflammable gas such as the temperature to miscellaneous gas in silo, pressure, CO and CH4 and oxygen concentration detect.Sampling setup completes the work such as automatic collection, gas analysis by master controller, after can extracting out by pipeline, detect.
Sampling setup draws condition information in silo by being arranged on many each sampling points of automatic checkout equipment in coal storage silo to detecting analysis in coal storage silo, transfers to master controller after drawing information data by signal wire (SW).Automatic checkout equipment comprises combustible gas detector, oxygen detection device, methane detector, temperature sensor, Smoke Sensor, level-sensing device etc.
Sampling setup is sent the combustable gas concentration collecting, oxygen concentration and Temperature numerical into master controller, when signal value exceedes after predetermined alarm value, master controller produces alarm signal, master controller is according to the signal value of different tubular type parts side, control the flow that corresponding unreactable gas discharges and discharges, thereby dilute imflammable gas and the air at surface, coal seam, middle part, coal seam, thereby effectively prevent and suppress spontaneous combustion and the blast of coal in silo.When silo temperature or combustable gas concentration drop to normal value, automatically stopping unreactable gas discharging.
The sample smoke signal and the material level signal that obtain of sampling setup sent into master controller, can obtain smoke condition and the material level situation of each tubular type parts side by master controller, for grasping silo internal information, gives security.
Fig. 3 is automatic gas-locking funnel device schematic diagram.Automatic gas-locking funnel device 3 is arranged on the belt conveyor both sides to coal storage silo convey materials, and this automatic gas-locking funnel device comprises cover plate 31, hopper side walls 32, base 33, and funnel base is connected with silo feeding mouth.The cylinder body that two relative sidewalls of rectangular funnel are hinged with respectively the first cylinder 34, the first cylinders 34 is hinged on sidewall; Be hinged with on the sidewall between the two side of the first cylinder 34 and be provided with jointed shaft 35, jointed shaft 35 two ends are hinged with two first connecting rods 36, the piston rod of the first cylinder 34 is hinged on the middle part of first connecting rod 36, thereby first connecting rod can freely rotate around jointed shaft 35 under the impetus of the first cylinder.On two first connecting rods 36, be respectively hinged with two second connecting rods 37.Master controller control the first cylinder 34 stretches out and promotes first connecting rod 36, and first connecting rod 36 rotates around jointed shaft 35, and cover plate 31 has a down dip and opens in the effect of second connecting rod 37; The closing movement of 31 cover plates is contrary with cover plate opening action, and under the first cylinder 34 contractions, first connecting rod 36 drives second connecting rod 37 to close cover plate 31.In this patent, in order to expand the degree that cover plate 31 opens and to control opening of cover plate, also can use the second cylinder to replace second connecting rod 37, adopt two groups of cylinder mating reactions.When the first cylinder 34 stretches out, the second cylinder stretches out simultaneously, and controls the length that it stretches out, thereby improves the control effect to cover plate, expands the opening degree of cover plate.The first cylinder 34 (with the second cylinder) is by the control of electromagnetic valve (not shown), and electromagnetic valve signal is from master controller, and master controller is according to the artificial or automatic signal of setting the electromagnetic valve of determining cylinder.Center inerting tubular type coal storage silo top is also provided with manual mode controller, manually opened electromagnetic valve.
Fig. 4 is automatic pressure relief device schematic diagram.Automatic pressure relief device 4 tops are provided with a closing plate 41, sealing plate 41 middle parts be arranged on the rod hinge connection that unloads air cylinder 42 in automatic pressure relief device, closing plate 41 edges are hinged on automatic pressure relief device 4.The cylinder body that unloads air cylinder 42 is hinged on the bottom of automatic pressure relief device 4.This unloads air cylinder 42 by the electromagnetic valve control being connected with master controller.When the signal of sampling setup collection exceedes early warning value, master controller is utilizing tubular type gas filled device material to be filled with after inert gas dilution imflammable gas, master controller will be given opening signal of the electromagnetic valve that unloads air cylinder 42 of automatic pressure relief device 4, and gas in silo is discharged.Automatic pressure relief device is also provided with manual pressure relief device, when needs complete specific operation, can manually to silo, carry out release as required.
In this automatic pressure relief device, be also provided with exhaust gear (not shown), exhaust gear can be exhaust fan.When opening closing plate, exhaust fan starts, and accelerates exhaust velocity in silo.
Automatic pressure relief device is rectangular shape preferably, and now, a sidewall of automatic pressure relief device is provided with louver 43, by this set, reduces the infringement of dust to cylinder and exhaust fan, the service life of improving automatic pressure relief device.
The present invention adopts the automatic pressure relief device of said structure, makes the automatic pressure relief device can repeated usage, and after removing the dangerous condition, automatic pressure relief device can be closed automatically.The replacing having avoided using disposable explosion door to bring is loaded down with trivial details, affect the problems such as production efficiency.
Fig. 5 is sealing screw charging gear schematic diagram.Sealing screw charging gear 5 comprises an exit skirt 51, fuselage, and exit skirt below is provided with the spiral pusher rod 52 of horizontal positioned, and spiral pusher rod 52 exit sides are provided with discharging elbow 53.In prior art, provided similar spiral pusher rod.But spiral pusher rod of the prior art can not seal.The discharging opening of discharging elbow of the present invention is provided with the weight lid 54 connecting by rotating shaft, material does not fall after being pushed in elbow by spiral material returned rod immediately, and when material runs up to after constant weight, weight covers under material gravity effect and overturns, material falls in silo, and weight lid sets back subsequently.Can utilize spring installation to push down weight lid, exceed after the gravity of setting at material, spring deflection exceedes to a certain degree, thereby realizes upset, and material restores to the original state again at action of the spring lower heavy punch lid after discharging; Also can be adopted as the weight lid that is hinged on discharging elbow tail end and connect a counterbalanced weight, when material exceeds after the gravity of setting, because leverage is played in rotating shaft, counterbalanced weight upset, material restores to the original state again at counterbalanced weight effect lower heavy punch lid after discharging; Also can adopt other turning devices.
The present invention also comprises nitrogen gas generating device, by pipeline, nitrogen gas generating device is connected with tubular type gas filled device.Nitrogen gas generating device is subject to master controller control, determines the switching of nitrogen gas generating device valve according to the signal of sampling setup collection, controls the nitrogen amount being filled with in silo.
The control process of center inerting tubular type coal storage silo safety protection device of the present invention is: the material position situation that master controller detects by the sampling setup of tubular type gas filled device; according to supplied materials situation; by master controller control, open automatic gas-locking funnel device, and make sealing screw charging gear unlatching work.After feeding, master controller is closed automatic gas-locking funnel device and sealing screw charging gear.In daily storage process, the material situation (temperature, combustable gas concentration, oxygen concentration, methane content etc.) that master controller monitoring sampling setup detects, once material situation is in the hole, start immediately nitrogen gas generating device, by tubular type gas filled device, to silo, be filled with unreactable gas, reduce dangerous situation possibility occurs.After inflation, automatic pressure relief device is opened in master controller control, carries out decompression exhaust.Master controller is monitored silo materials inside situation in exhaust simultaneously, once material situation is in safety value, closes automatic pressure relief device, finishes exhaust.
The foregoing is only embodiments of the invention, those skilled in the art can carry out various changes or modification and not depart from the spirit and scope of the present invention the embodiment of the present invention according to application documents are disclosed.
Claims (7)
1.Yi Zhong center inerting tubular type silo safty fender guard, is characterized by: comprise coal storage silo, tubular type gas filled device 2, automatic gas-locking funnel device 3, automatic pressure relief device 4; Tubular type gas filled device is arranged on coal storage silo middle position, and automatic gas-locking funnel device is arranged on coal storage silo top to be silo feeding, and automatic pressure relief device is evenly arranged in coal storage silo top.
2. center inerting tubular type coal storage silo safety protection device as claimed in claim 1, is characterized by: also comprise sealing screw charging gear 5, sealing helixes feed equipment is arranged on the belt conveyor cylinder below to coal storage silo convey materials.
3. the center inerting tubular type coal storage silo safety protection device as described in claim 1-2; it is characterized by; wherein tubular type gas filled device is from through top, coal storage silo bottom; this tubular type gas filled device comprises multiple identical tubular type parts 21; multiple tubular type parts are stitched together and form tubular type gas filled device, and each tubular type parts are provided with inert gas and discharge nozzle 23.
4. the center inerting tubular type coal storage silo safety protection device as described in claim 1-3; it is characterized by; wherein automatic gas-locking funnel device is arranged on the belt conveyor both sides to coal storage silo convey materials; this automatic gas-locking funnel device comprises cover plate 31, hopper side walls 32, feeding mouth, the discharging opening being connected with silo feeding mouth; cover plate and hopper side walls are hinged; hopper side walls is hinged with a cylinder, and the cylinder other end promotes cover plate and overturns along hinged place.
5. the center inerting tubular type coal storage silo safety protection device as described in claim 1-4, is characterized by, and wherein automatic pressure relief device top is provided with a closing plate 41, and sealing plate is connected with the cylinder being arranged in automatic pressure relief device.
6. the center inerting tubular type coal storage silo safety protection device as described in claim 1-5, is characterized by, and wherein the closing plate of automatic pressure relief device below is provided with exhaust gear, and automatic pressure relief device sidewall is provided with louver.
7. the center inerting tubular type coal storage silo safety protection device as described in claim 1-6; it is characterized by; sealing screw charging gear is arranged on the belt conveyor cylinder below to coal storage silo convey materials; sealing helixes feed equipment comprises an exit skirt 51; exit skirt below is provided with the spiral pusher rod 52 of horizontal positioned; spiral pusher rod exit side is provided with discharging elbow 53, and the discharging opening of discharging elbow is provided with the weight lid 54 connecting by rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310146916.3A CN103738607A (en) | 2013-04-25 | 2013-04-25 | Safety protection device of center-inerting pipe type coal storage silo |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310146916.3A CN103738607A (en) | 2013-04-25 | 2013-04-25 | Safety protection device of center-inerting pipe type coal storage silo |
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| CN103738607A true CN103738607A (en) | 2014-04-23 |
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|---|---|---|---|
| CN201310146916.3A Pending CN103738607A (en) | 2013-04-25 | 2013-04-25 | Safety protection device of center-inerting pipe type coal storage silo |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107651333A (en) * | 2017-10-28 | 2018-02-02 | 广东拓丰实业有限公司 | A kind of explosion-proof biomass fuel equipment |
| CN108558241A (en) * | 2018-08-01 | 2018-09-21 | 南通海明环保科技有限公司 | A kind of dust processing energy conservation and environmental protection lime burner furnace |
| CN109733756A (en) * | 2019-01-03 | 2019-05-10 | 国家能源投资集团有限责任公司 | Coal bunker |
| CN113697308A (en) * | 2021-08-28 | 2021-11-26 | 徐州国晟智能科技有限公司 | Silo safety inerting protection device convenient for quick inflation |
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| CN202687208U (en) * | 2012-07-26 | 2013-01-23 | 中国神华能源股份有限公司 | Cylinder cabin comprising inerting protection system |
| CN203294594U (en) * | 2013-04-25 | 2013-11-20 | 陕西祥瑞电气工程自动化有限公司 | Safety protection device of center-inert-tube-type coal storage silo |
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| US20030172630A1 (en) * | 2000-03-17 | 2003-09-18 | Albert Thornwesten Sr | Silo and/or filter device for inflammable dry bulk freight |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107651333A (en) * | 2017-10-28 | 2018-02-02 | 广东拓丰实业有限公司 | A kind of explosion-proof biomass fuel equipment |
| CN108558241A (en) * | 2018-08-01 | 2018-09-21 | 南通海明环保科技有限公司 | A kind of dust processing energy conservation and environmental protection lime burner furnace |
| CN109733756A (en) * | 2019-01-03 | 2019-05-10 | 国家能源投资集团有限责任公司 | Coal bunker |
| CN113697308A (en) * | 2021-08-28 | 2021-11-26 | 徐州国晟智能科技有限公司 | Silo safety inerting protection device convenient for quick inflation |
| CN113697308B (en) * | 2021-08-28 | 2022-08-12 | 徐州国晟智能科技有限公司 | Silo safety inerting protection device convenient for quick inflation |
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Application publication date: 20140423 |