CN204269568U - The explosion-proof grey sub sensor of a kind of natural Gamma ray - Google Patents
The explosion-proof grey sub sensor of a kind of natural Gamma ray Download PDFInfo
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- CN204269568U CN204269568U CN201420479267.9U CN201420479267U CN204269568U CN 204269568 U CN204269568 U CN 204269568U CN 201420479267 U CN201420479267 U CN 201420479267U CN 204269568 U CN204269568 U CN 204269568U
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Abstract
The utility model relates to ash content detection field in coal, the explosion-proof grey sub sensor of a kind of natural Gamma ray particularly on underground coal mine band conveyor, comprise sensor stand and gamma-ray transducer, described sensor stand comprises front end to plate, rear end is to plate, angle steel one and angle steel two, described front end is to plate, rear end is fixed connection by angle steel one and angle steel two between plate, described front end is to plate, rear end is to plate, angle steel one and angle steel two are for surrounding a square structure groove, described gamma-ray transducer is placed in this square structure grooves, barricade is furnished with between described gamma-ray transducer and square structure groove, the utility model is fabricated structure, advantages of simple, meet natural Gamma ray and detect ash content principle in coal, be convenient to transport, install, meet underground coal mine requirement of explosion proof, adapt to underground coal mine band conveyor operating mode.
Description
Technical field
The utility model relates to ash content detection field in coal, the explosion-proof grey sub sensor of a kind of natural Gamma ray particularly on underground coal mine band conveyor.
Background technology
According to the diversified demand in coal market, require that coal enterprise produces the coal product of different cultivars, different quality, the key index of categories of coal and quality is ash content, and detecting ash content in coal has multiple method.Wherein a kind of method is non-gamma-rays dual intensity method passive detection or is called natural Gamma ray method.Its principle is: the ash content in coal contains some natural radioactive isotopes, is uranium series, thorides and K40 etc., does not contain radioactive isotope in fixed carbon and volatile matter.These radioactive isotopes can send the ray of trace, and ray number there is metastable association with ash content, therefore by the ray that sends of detection coal number just can determine ash content in coal.Ash content in current employing natural Gamma ray method on-line checkingi coal, market has had corresponding product in use.The environment that these products use is in the conventional environment of ground, does not have coal dust, methane explosion risk, and it is better that the online ash content on band conveyor detects operating mode, transport, install more convenient, less demanding to ash content sensor construction.Sensor outer housing is rectangular structure, and barricade is arranged on sensor shell inside, and overall weight is large.In order to make, gamma-rays is as far as possible many enters sensor, and gamma-rays entrance window is nonmetallic materials, and grey sub sensor does not have explosion-proof performance.Underground coal mine environment, in Belt Conveying machine-made egg-shaped or honey-comb coal briquets, the usual installing space of ash content on-line monitoring is limited, and band conveyor operating mode is unstable, requires that ash content checkout equipment is carried, easy for installation; Requirement has good shock resistance; Require that ash content checkout equipment has explosion-proof performance.
Summary of the invention
The purpose of this utility model is overcome deficiency of the prior art and provide a kind of natural Gamma ray explosion-proof grey sub sensor, for ash content on-line checkingi in underground coal mine Belt Conveying machine-made egg-shaped or honey-comb coal briquets, adapt to subsurface environment, convenient carrying, installation, adapt to band conveyor operating mode.
The purpose of this utility model is achieved in that
The explosion-proof grey sub sensor of a kind of natural Gamma ray, comprise sensor stand and explosion proof gamma-ray detector, described sensor stand comprises front end to plate, rear end to plate, angle steel one and angle steel two, described front end is fixed connection by angle steel one and angle steel two to plate, rear end between plate, described front end to plate, rear end to plate, angle steel one and angle steel two for surrounding a square structure groove, described explosion proof gamma-ray detector is placed in this square structure grooves, is furnished with barricade between described explosion proof gamma-ray detector and square structure groove.
Based on the above, described explosion proof gamma-ray detector comprises end cap one, end cap two, tubular shell, scintillator-photomultiplier assembly, flange one and flange two, described end cap one, end cap two, be separately positioned on the two ends of tubular shell, described end cap one is connected by socket head cap screw with flange one, described end cap two is crossed socket head cap screw with flange two-way and is connected, described tubular shell is provided with outlet nozzle, and described sensor is fixedly installed in tubular shell.
Based on the above, described scintillator-photomultiplier assembly one end is fixed in tubular shell by a rubber ring, and the other end is bolted on a location-plate by rubber shock-absorbing, and this location-plate is vertically fixedly installed in tubular shell.
Based on the above, described barricade forms to barricade to barricade, side direction barricade, the end by holding, described end is arranged in front end between plate and explosion proof gamma-ray detector to barricade, described side direction barricade is arranged between angle steel one side and explosion proof gamma-ray detector and between angle steel two side faces and explosion proof gamma-ray detector, and the described end is arranged between angle steel one bottom surface and explosion proof gamma-ray detector and between angle steel two bottom surface and explosion proof gamma-ray detector to barricade;
Position transverse strands near rear end to plate between described angle steel one and angle steel two is provided with a barricade fixed head.
Based on the above, described explosion proof gamma-ray detector two ends are respectively arranged with sensor fixation plate one and sensor fixation plate two, and described explosion proof gamma-ray detector is fixed on side direction barricade one, rear end on plate respectively by sensor fixation plate one and sensor fixation plate two.
Based on the above, described side direction barricade is made up of side direction barricade one and side direction barricade two, the width of described side direction barricade one is less than the width of side direction barricade two, and the cross-directional length of described side direction barricade is greater than the sensitive length of explosion proof gamma-ray detector; The described end, was made up of to barricade one and the end to barricade two to barricade the end of, the described end, is less than the width of the end to barricade two to the width of barricade one, described side direction barricade one is corresponding to barricade one width the end of with, and side direction barricade two is corresponding to the width of barricade two end of with.
Based on the above, described front end has ceiling one and ceiling two to plate, rear end to erection between plate, and described ceiling one and ceiling two are arranged in directly over angle steel one and angle steel two.
Based on the above, described front end is provided with web joint to plate, rear end to plate lateral surface.
The utility model is fabricated structure, advantages of simple, meets natural Gamma ray and detects ash content principle in coal, is convenient to transport, installs, meet underground coal mine requirement of explosion proof, adapts to underground coal mine band conveyor operating mode.
Accompanying drawing explanation
Fig. 1 is the structural representation of sensor stand.
Fig. 2 is the structural representation of sensor.
Fig. 3 is the general assembly structural representation of sensor.
Embodiment
Below in conjunction with specific embodiment, the utility model will be further described.
As Fig. 1, 2, shown in 3, the explosion-proof grey sub sensor of a kind of natural Gamma ray, comprise sensor stand 1 and explosion proof gamma-ray detector 2, described sensor stand 1 comprises front end to plate 11, rear end is to plate 12, angle steel 1 and angle steel 2 14, described front end is to plate 11, rear end is fixed connection by angle steel 1 and angle steel 2 14 between plate 12, described front end is to plate 11, rear end is to plate 12, angle steel 1 and angle steel 2 14 are for surrounding a square structure groove 15, because angle steel has two sides, therefore, and front and back end can form a square structure groove 15 between plate.Front end to plate 11, rear end to plate 12, adopt the mode of welding to be fixed between angle steel 1 and angle steel 2 14, the end end at angle steel and two ends is fixed to the wire bonding between plate being square, and therefore, sensor stand 1 is more firm.
Described explosion proof gamma-ray detector 2 is placed in this square structure grooves 15, and lower end relies on a side of angle steel to support, and both sides rely on another side of angle steel to support.Barricade 3 is furnished with between described explosion proof gamma-ray detector 2 and square structure groove 15.
Based on the above, described explosion proof gamma-ray detector 2 comprises end cap 1, end cap 2 22, tubular shell 23, scintillator-photomultiplier assembly 24, flange 1 and flange 2 26, described end cap 1, end cap 2 22, be separately positioned on the two ends of tubular shell 23, described end cap 1 is connected by hexagon socket head cap screw with flange 1, described end cap 2 22 is also connected by hexagon socket head cap screw with flange 2 26, described tubular shell 23 is provided with outlet nozzle 4, and described scintillator-photomultiplier assembly 24 is fixedly installed in tubular shell 23.Described tubular shell 23 is explosion-proof faying face with end cap 1 and end cap 2 22.In order to reduce the decay of tubular shell 23 to effective natural Gamma ray, the minimum thickness that tubular shell 23 adopts underground coal mine ex electrical product standard to allow and 3mm.
Based on the above, described scintillator-photomultiplier assembly 24 one end is fixed in tubular shell 23 by a rubber ring 9, and the other end is bolted on a location-plate 10 by rubber shock-absorbing, and this location-plate 10 is vertically fixedly installed in tubular shell 23.
Based on the above, described barricade 3 is made up of to barricade 33 to barricade 31, side direction barricade 32, the end end, described end is arranged in front end between plate 11 and explosion proof gamma-ray detector 2 to barricade 31, described side direction barricade 32 is arranged between angle steel 1 side and explosion proof gamma-ray detector 2 and between angle steel 2 14 side and explosion proof gamma-ray detector 2, and the described end is arranged between angle steel 1 bottom surface and explosion proof gamma-ray detector 2 and between angle steel 2 14 bottom surface and explosion proof gamma-ray detector 2 to barricade 33;
Position transverse strands near rear end to plate 12 between described angle steel 1 and angle steel 2 14 is provided with a barricade fixed head 8, and this barricade fixed head 8 can be fixed to barricade at the bottom of two side direction barricades and one piece quickly, and is fixed by screw.
Based on the above, described explosion proof gamma-ray detector 2 two ends are respectively arranged with sensor fixation plate 1 and sensor fixation plate 2 261, described explosion proof gamma-ray detector 2 is fixed on side direction barricade 1, rear end on plate 12 respectively by sensor fixation plate 1 and sensor fixation plate 2 261, need to be fixed by rubber shock-absorbing bolt, first on side direction barricade 1, make a call to two holes, be then fixed by two rubber shock-absorbing bolts.And rear end is also that employing two rubber shock-absorbing bolts are fixed between plate 12, thus realizes shockproof, and the effect of damping, to adapt to underground conveyer belt condition.
Based on the above, described side direction barricade 32 is made up of side direction barricade 1 and side direction barricade 2 322, and the width of described side direction barricade 1 is less than the width of side direction barricade 2 322; The described end, was made up of to barricade 1 and the end to barricade 2 332 to barricade 33 end of, the described end, is less than the width of the end to barricade 2 332 to the width of barricade 1, described side direction barricade 1 and the setting of the end to the less width of barricade 1, mainly in order to abdicate certain space to the flange of sensor, make structure more reasonable.Described side direction barricade 1 is corresponding to barricade 1 width the end of with, and side direction barricade 2 322 is corresponding to the width of barricade 2 332 end of with.The weight of every block shielding slab is mainly convenient to carrying, assembling design at 5-10 kilogram to consider, be advisable, the design of its thickness is advisable between 70-100mm.Hold to shielding slab and side direction shielding slab for shielding the invalid ray from horizontal direction, the invalid ray that the end is used for below shield sensor to shielding slab, namely by the invalid ray between angle steel 1 and angle steel 2 14.
The described end, is arranged between two side direction shielding slabs to shielding slab, and the length of the sensitive volume of the several reportedly sensor of block of shielding slab is arranged, generally by the length slightly larger than detector sensitive volume of the length of whole horizontal direction layout.
Based on the above, described front end is to plate 11, there are ceiling 1 and ceiling 26 in rear end to erection between plate 12, described ceiling 1 and ceiling 26 are arranged in directly over angle steel 1 and angle steel 2 14, ceiling can be fixed on front and back end on plate by socket head cap screw, the upper surface of ceiling 1 and ceiling 26 exceeds detector two ends end to the general 5-10mm of plate, the effect of ceiling mainly can be protected the part that explosion proof gamma-ray detector exposes sensor stand 1, the protective effect of two ceilings can be protected from top and oblique upper fully to explosion proof gamma-ray detector.
Based on the above, described front end is provided with web joint 7 to plate 11, rear end to plate 12 lateral surface.
Installation steps: 1. bracing frame is in place.2. put into end to shielding slab.3 first put into side direction shielding slab 321 in order puts into whole sides shielding slab 322 again.4. between side direction shielding slab 321, first put into the end to barricade 2 332, then put into whole end to barricade 1.5. on side direction shielding slab 321 He on opposite side end plate, rubber shock-absorbing bolt is installed.6. fixed head screw is arranged on the end cap at detector two ends.7. fixed head is arranged on rubber shock-absorbing bolt.8. ceiling is arranged on end plate.
Claims (9)
1. the explosion-proof grey sub sensor of natural Gamma ray, it is characterized in that: comprise sensor stand (1) and explosion proof gamma-ray detector (2), described sensor stand (1) comprises front end to plate (11), rear end is to plate (12), angle steel one (13) and angle steel two (14), described front end is to plate (11), rear end is fixed connection by angle steel one (13) and angle steel two (14) between plate (12), described front end is to plate (11), rear end is to plate (12), angle steel one (13) and angle steel two (14) surround a square structure groove (15), described explosion proof gamma-ray detector (2) is placed in this square structure grooves (15), barricade (3) is furnished with between described explosion proof gamma-ray detector (2) and square structure groove (15).
2. the explosion-proof grey sub sensor of a kind of natural Gamma ray according to claim 1, it is characterized in that: described explosion proof gamma-ray detector (2) comprises end cap one (21), end cap two (22), tubular shell (23), scintillator-photomultiplier assembly (24), flange one (25) and flange two (26), described end cap one (21), end cap two (22), be separately positioned on the two ends of tubular shell (23), described end cap one (21), be explosion-proof faying face between the two ends of end cap two (22) and tubular shell (23), described end cap one (21) is connected by socket head cap screw with flange one (25), described end cap two (22) is connected by socket head cap screw with flange two (26), described tubular shell (23) is provided with outlet nozzle (4), described scintillator-photomultiplier assembly (24) is fixedly installed in tubular shell (23).
3. the explosion-proof grey sub sensor of a kind of natural Gamma ray according to claim 2, it is characterized in that: described scintillator-photomultiplier assembly (24) one end is fixed in tubular shell (23) by a rubber ring (9), the other end is bolted on a location-plate (10) by rubber shock-absorbing, and this location-plate (10) is vertically fixedly installed in tubular shell (23).
4. the explosion-proof grey sub sensor of a kind of natural Gamma ray according to claim 1, it is characterized in that: described barricade (3) is by holding to barricade (31), side direction barricade (32), the end, forms to barricade (33), described end is arranged in front end between plate (11) and explosion proof gamma-ray detector (2) to barricade (31), described side direction barricade (32) is arranged between angle steel one (13) side and explosion proof gamma-ray detector (2) and between angle steel two (14) side and explosion proof gamma-ray detector (2), the described end, is arranged between angle steel one (13) bottom surface and explosion proof gamma-ray detector (2) and between angle steel two (14) bottom surface and explosion proof gamma-ray detector (2) to barricade (33),
Position transverse strands near rear end to plate (12) between described angle steel one (13) and angle steel two (14) is provided with a barricade fixed head (8).
5. the explosion-proof grey sub sensor of a kind of natural Gamma ray according to claim 4, it is characterized in that: described explosion proof gamma-ray detector (2) two ends are respectively arranged with sensor fixation plate one (251) and sensor fixation plate two (261), described explosion proof gamma-ray detector (2) is fixed on side direction barricade one (321), rear end on plate (12) respectively by sensor fixation plate one (251) and sensor fixation plate two (261).
6. the explosion-proof grey sub sensor of a kind of natural Gamma ray according to claim 5, it is characterized in that: fixed by two rubber shock-absorbing bolts between described sensor fixation plate one (251) and side direction barricade one (321), described sensor fixation plate two (261) and rear end are also fixed by two rubber shock-absorbing bolts between plate (12).
7. the explosion-proof grey sub sensor of a kind of natural Gamma ray according to claim 4, it is characterized in that: described side direction barricade (32) is made up of side direction barricade one (321) and side direction barricade two (322), the width of described side direction barricade one (321) is less than the width of side direction barricade two (322), and the cross-directional length of described side direction barricade (32) is greater than the sensitive length of explosion proof gamma-ray detector (2); The described end, was made up of to barricade one (331) and the end to barricade two (332) to barricade (33) end of, the described end, is less than the width of the end to barricade two (332) to the width of barricade one (331), described side direction barricade one (321) is corresponding to barricade one (331) width the end of with, and side direction barricade two (322) is corresponding to the width of barricade two (332) end of with.
8. the explosion-proof grey sub sensor of a kind of natural Gamma ray according to claim 1; it is characterized in that: described front end has ceiling one (5) and ceiling two (6) to plate (11), rear end to erection between plate (12), and described ceiling one (5) and ceiling two (6) are arranged in directly over angle steel one (13) and angle steel two (14).
9. the explosion-proof grey sub sensor of a kind of natural Gamma ray according to claim 1, is characterized in that: described front end is provided with web joint (7) to plate (11), rear end to plate (12) lateral surface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420479267.9U CN204269568U (en) | 2014-08-19 | 2014-08-19 | The explosion-proof grey sub sensor of a kind of natural Gamma ray |
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| CN201420479267.9U CN204269568U (en) | 2014-08-19 | 2014-08-19 | The explosion-proof grey sub sensor of a kind of natural Gamma ray |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105547409A (en) * | 2015-12-30 | 2016-05-04 | 黑龙江省科学院技术物理研究所 | Passive nuclear material level measurement device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105547409A (en) * | 2015-12-30 | 2016-05-04 | 黑龙江省科学院技术物理研究所 | Passive nuclear material level measurement device and method |
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