CN207191990U - Automatic removing dust ash bucket under the accident dust stratification state of deduster - Google Patents
Automatic removing dust ash bucket under the accident dust stratification state of deduster Download PDFInfo
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- CN207191990U CN207191990U CN201720857049.8U CN201720857049U CN207191990U CN 207191990 U CN207191990 U CN 207191990U CN 201720857049 U CN201720857049 U CN 201720857049U CN 207191990 U CN207191990 U CN 207191990U
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Abstract
The utility model provides the automatic removing dust ash bucket under a kind of accident dust stratification state of deduster, including：One bucket body, there is ash bucket design carrying material position and high charge level early warning material position；One dust leg road, there is the ash releasing tube for stretching into the ash inlet tube inside bucket body and stretching out outside bucket body；The ash inlet tube is located between ash bucket design carrying material position and high charge level early warning material position；The mouth of pipe of the ash releasing tube passes through an one-way cock module enclosure.It can easily judge that dust collector ash hopper is to be in normal condition or abnormality in detection mouth.And can be after grey bearing capacity be stored up beyond deduster design, dust is higher by after normal storage ash quantity in ash bucket, dust stratification is achieved in the defencive function to deduster with automatic removing dust；Meanwhile during ash discharge, it can also transmit switching value electric signal by touching contact-making switch to related Control System, realize the sound and light alarm under the accident dust stratification state of deduster.
Description
Technical field
It the utility model is related to environmental technology field, more particularly to cleaner, and in particular to a kind of deduster is accident
Automatic removing dust ash bucket under dust stratification state.
Background technology
Showing for the of short duration dust stratification of ash bucket occurs often because of ash discharge failure in the dust collector ash hopper that thermal power plant is equipped with often
As, this belongs to normal phenomenon, as long as the storage ash capacity that general dust stratification allows in dust collector ash hopper, and dust stratification duration is corresponding extensive
In the time range of multiple normal ash disposal, deduster would not be damaged.Therefore dust collector ash hopper dust stratification causes to endanger to deduster
Harmful case, it is entirely because failture evacuation not in time, makes dust stratification inside dust collector ash hopper exceed deduster design permission
Storage capacity.
It is domestic that the security incident caused by the serious dust stratification of dust collector ash hopper repeatedly occurs.Such as：Hubei Pu in 2005
No. 2 electric cleaner " 1.1 " total collapse accidents of boundary Power Plant No.1 unit (300,000 kilowatts)；The second thermoelectricity of the packet header of the Inner Mongol in 2005
Electric field " 3.20 " the ash bucket total collapse accident of factory No. 2 units (200,000 kilowatts) electric cleaner one；Inner Mongol Huo Mei groups in 2005
No. 3 unit " 4.9 " ash bucket case accidents of one phase of power plant for self-supply of Hong Junlv electricity companies；The 2006 time international grey hair of Anhui Chizhou City nine of electricity
Electric No. 2 unit electric cleaner " 3.14 " cave-in accidents of Co., Ltd；The safe and sound Iron And Steel Co., Ltd in Tangshan " 9.23 " electricity removes within 2014
Dirt device ash bucket cave-in accident etc..Above-mentioned its inducement of startling accident can all be attributed to the accident dust stratification of deduster and not and
When deashing.
Domestic thermal power plant deduster judges whether the technological means of dust stratification mainly has three aspects for inside at present：Deduster ash
The high charge level switch that struggles against judges；Deduster ash disposal system operational factor indirect discrimination；Measure checking is disassembled in maintenance.
The factor that ash disposal system operational factor indirect discrimination influences is a lot, and needs the comparison of longtime running parameter, has
There is very big hysteresis quality, it is impossible to find dust stratification hidden danger in time.The feelings that measure checking often has occurred and that in accident are disassembled in maintenance
Under condition, that takes has the interim measure of certain risk and damaging, is not the technical measures of equipment normal operation.So
Mainly choose in the industry at present ash bucket high charge level switch judge measure judge inside deduster whether dust stratification.
Generally switched at this stage using high charge level and judge to coordinate artificial accident cinerary device serious inside deduster to handle
Dust stratification failure, the premise of such a mode is will be using ash bucket high charge level switching signal as operation foundation, if high charge level switch letter
Number go wrong, then this mode just can not normal work.In addition, when high charge level switching signal fails, not only can not and
When process accident hidden danger, accident potential can not be judged whether in time by also resulting in staff, and this is also to cause domestic hair
The key technology factor of the serious dust stratification accident of raw deduster.
As shown in figure 1, existing dust collector ash hopper when on ash bucket high charge level switch 01 alarm when, it is necessary to which ash bucket is opened manually
The urgent cinerary device 02 of bottom accident, carries out urgent ash discharge, if carry out accident promptly puts ash and fully relies on high charge level switch 01
Single source signal.
In ash bucket high charge level switch type selecting, because radio frequency admittance material level indicator is relatively economical, reliable, therefore, general
Time design selection using radio frequency admittance material level indicator.Theoretically, radio frequency admittance material level indicator uses in design
Advanced anti-adhesive circuit, using the measurement of many reference amounts, wherein by using exchange phase demodulation sampler, solved from mathematical theory
Bridging problem on switch.But in dust collector ash hopper in adverse circumstances, radio frequency admittance material level indicator still goes out unavoidably
Existing false alarm and damage, exactly because also false alarm takes place frequently radio frequency admittance material level indicator in actual applications, it is easy to operation
Administrative staff produce the misleading in understanding.Needed in addition, radio frequency admittance level-sensing device is using preceding needing to debug, during debugging by having
Grey and ashless two states, ability accurate calibration level-sensing device, so, in deduster ash disposal system existing defects, such as ash disposal
When design conveying capacity deficiency, deduster air flow method are uneven, it will make very big wind in ash disposal system running be present
Dangerous hidden danger.If deduster is run in the case where hidden danger be present for a long time, maintainer can not in time have found and exclude to ask again
Topic, the long-term accumulation of problem, finally will result in serious harm.The country has many dedusters serious product occur going into operation in 1 year
Grey failure, mainly caused by exactly above-mentioned reason.
With the constantly improve of passive nucleon material-level measure technological means, passive nuclear level sensing device has obtained more and more wider
General use.But for passive nuclear level sensing device, equally there is also the possibility for breaking down and failing, in addition, passive nucleon
Level-sensing device also without by the test and checking under the state of emergency, so, even if being led using passive nuclear level sensing device instead of radio frequency
Stuff level switch of receiving can not avoid deduster that serious dust stratification harm occurs completely.
Thus, ash bucket dust stratification can be judged accurately, conveniently, reliably, in time by how realizing, and safe and simple, effective
The serious dust stratification accident potential of processing deduster is the important topic of urgent need to resolve in the industry.
Utility model content
For above-mentioned the shortcomings of the prior art, the purpose of this utility model is to provide a kind of accident dust stratification of deduster
Automatic removing dust ash bucket under state, it can easily judge that dust collector ash hopper is to be in normal condition or abnormal shape in detection mouth
State.And can be after grey bearing capacity be stored up beyond deduster design, dust is higher by after normal storage ash quantity in ash bucket, makes dust stratification
Defencive function to deduster can be achieved in automatic removing dust；Meanwhile during ash discharge, can also be by touching contact-making switch, Xiang Xiang
Control system transmission switching value electric signal is closed, realizes the sound and light alarm under the accident dust stratification state of deduster.
For the above-mentioned purpose, the utility model adopts the technical scheme that：
A kind of automatic removing dust ash bucket under the accident dust stratification state of deduster, including：
One bucket body, there is ash bucket design carrying material position and high charge level early warning material position；
One dust leg road, there is the ash releasing tube for stretching into the ash inlet tube inside bucket body and stretching out outside bucket body；
The ash inlet tube is located between ash bucket design carrying material position and high charge level early warning material position；
The mouth of pipe of the ash releasing tube passes through an one-way cock module enclosure.
Further, the ash releasing tube is horizontally disposed with.
Further, the ash releasing tube forms downward 0 ° to 30 ° of angles with horizontal direction.
Further, the one-way cock component includes：
It is fixedly arranged on a detection mouth flange of the mouth of pipe of ash releasing tube；
An elastic pressure assembly affixed with the detection mouth flange；
One door rod, to close a bonnet of the mouth of pipe, the other end connects with the elastic pressure assembly for its one end connection
Connect.
Further, the elastic pressure assembly includes a spring support and a spring；
The spring support includes a bonnet and connects some installation vertical rods of bonnet and detection mouth flange；The bonnet with
A fixed guiding and limiting plate between detection mouth flange；It is oriented to and limiting plate is formed with a pilot hole, the door rod has one the
One retainer, the door rod pass through the pilot hole, and first retainer is between guiding and limiting plate and bonnet；Cap-shaped afterwards
The retainers of Cheng Youyi second；The spring housing is located at door rod, and both ends are stopped at foregoing first retainer and the second stop respectively
Portion.
Further, the bonnet, detection mouth flange, guiding and limiting plate are parallel between each other.
Further, second retainer is that an adjustment is enclosed, and the adjustment snare is located at the door rod, and outside passes through spiral shell
Line structure is connected with the mounting hole that bonnet is formed, and has been internally formed spring locking groove.
Further, it is provided with and can be contacted by mobile-initiated the one of first retainer on the guiding and limiting plate
Switch.
Further, the mouth of pipe direction of the ash inlet tube is backwards to the direction that ash bucket inside smoke flows.
Further, the mouth of pipe of the ash inlet tube is downward inclined tube mouth.
By taking above-mentioned technical proposal, ash inlet tube is highly less than ash bucket design carrying material position, i.e., grey position limiting altitude, height
In high charge level early warning material position, i.e. high charge level switch height.It is under normal circumstances, high after dust stratification first reaches high charge level switch height
Stuff level switch is alarmed, at this point it is possible to pass through conventional meanses ash discharge.Once high charge level switch fault, failing to alarm, grey position continues to rise
Height, the nozzle position of ash inlet tube is reached, in the presence of dust stratification tension force, you can dust stratification is discharged by dust leg road, touched simultaneously
Send out contact-making switch alarm.
Although in this way, only adding a pipeline structure, very reliable fault exclusion and forewarning function can be played, significantly
The safety and stability of ash bucket, and low cost are improved, can't additionally increase excessive load, is avoided excessive overweight because adding
Failture evacuation element, increase existing equipment loading effect equipment normal operation.In addition, the ash discharge that ash bucket of the present utility model is formed
Pre-alarming system has high stability in itself, is not in failure substantially, and because its working condition is capable of the inspection of simplicity,
Therefore the possibility of failure by periodic inspection, can be eliminated.
Brief description of the drawings
Fig. 1 is the structural representation of existing dust collector ash hopper in background technology.
Fig. 2 is that the structure of the automatic removing dust ash bucket under the accident dust stratification state of deduster in the embodiment of the utility model one is shown
It is intended to.
Fig. 3 is the ash inlet tube of the automatic removing dust ash bucket under the accident dust stratification state of deduster in the embodiment of the utility model one
Installation direction schematic diagram.
Fig. 4 is the structural representation of ash releasing tube and one-way cock component in the embodiment of the utility model one.
Fig. 5 is the main structure figure of bonnet in one-way cock component in the embodiment of the utility model one.
Fig. 6 is the side block diagram of bonnet in one-way cock component in the embodiment of the utility model one.
Fig. 7 is the structural representation for installing vertical rod in the embodiment of the utility model one in one-way cock component.
Fig. 8 is the structural representation of door rod in one-way cock component in the embodiment of the utility model one.
Fig. 9 is the sectional structure chart for adjusting circle in the embodiment of the utility model one in one-way cock component.
Figure 10 is the main structure figure for adjusting circle in the embodiment of the utility model one in one-way cock component.
Figure 11 is the side block diagram of bonnet in one-way cock component in the embodiment of the utility model one.
Figure 12 is the main structure figure of bonnet in one-way cock component in the embodiment of the utility model one.
Figure 13 is the side block diagram of guiding and limiting plate in one-way cock component in the embodiment of the utility model one.
Figure 14 is guiding in one-way cock component in the embodiment of the utility model one and the main structure figure of limiting plate.
Embodiment
Illustrate operation principle of the present utility model first：
Dust collector ash hopper has characteristic as follows by its structure and working environment：Be first deduster in operation, such as ash bucket
Can be in negative pressure state when belonging to ashless empty bucket-shaped state, inside ash bucket, this also imply that now if open ash bucket with outside
The hole that portion's air is connected, extraneous air can be entered inside ash bucket under suction function by hole.Next to that dust collector ash hopper
During in dust stratification state, because the mobility of ash is larger, there are certain fluid properties, grey tension force promotes grey from ash bucket and outer
What the hole that portion's air is connected outwards sprayed, and ash accumulation more than hole is higher, and grey injection power is also bigger.
Using the characteristic of above-mentioned dust collector ash hopper, highly exceed normal storage in the mouth of pipe of one ash inlet tube of ash bucket indoor design
The dust leg road of grey height, when dust accretions highly exceed the mouth of pipe height of dust leg road ash inlet tube, dust can pass through import
The mouth of pipe of pipe automatically flows into dust leg road, with piling height increase grey in dust leg road, by the accumulation pressure of ash, bonnet
Promote door rod to open bonnet, start automatic removing dust.After dust stratification is disposed in ash bucket, by the thrust and ash bucket of spring
The suction of interior negative pressure can be such that bonnet closes automatically.When bonnet is automatically turning in the presence of dust, door rod movement, door rod are driven
On the first retainer (can be considered a projection) touch contact-making switch, contact-making switch to a control system transmit switching value telecommunications
Number, control system is, for example, dcs (DCS), and control system prompts work on the spot people in time by sound and light alarm
There is serious dust stratification failure, it is necessary to be handled immediately in member's ash bucket.Thus alarm can be achieved and extends the function of processing time,
Staff receives the report for police service, and can adjust ash disposal system or take urgent artificial ash discharge to remove a hidden danger.
As described above, normal ash bucket storage ash is that deduster runs necessary function, but the deduster of improper storage ash is serious
Dust stratification is the accident for needing to take precautions against, therefore, when ash bucket storage ash reaches the grey condition of improper storage, grey storing highly in ash bucket
(ash position height), typically designer carry out load, the design input condition of structure design, utilize the side of this design input
Boundary's condition, high grey position ash exhauster is set on ash bucket.The utility model is improved on basis herein.Below in conjunction with this
Accompanying drawing in utility model embodiment, clear, complete description is carried out to the technical scheme in the embodiment of the utility model.
As shown in Fig. 2 in one embodiment, there is provided the automatic removing dust ash bucket under a kind of accident dust stratification state of deduster,
Including：
Bucket body 1, has ash bucket design carrying material position and high charge level early warning material position, and the two material positions are all known design ginsengs
Number, each ash bucket can determine the two material positions during redesigning, then arrange corresponding device；
Dust leg road 2, there is the ash releasing tube 22 for stretching into the ash inlet tube 21 inside bucket body and stretching out outside bucket body；Dust leg leads to
2 can be fixedly arranged on bucket body 1 by flange arrangement, can also be fixedly arranged on bucket body for example, by the mode of welding.
Wherein, ash inlet tube 21 is located between ash bucket design carrying material position and high charge level early warning material position；The mouth of pipe of ash releasing tube 22
Closed by one-way cock component 3.The mouth of pipe height ash bucket design carrying material position of ash inlet tube, it is high that dust stratification first reaches high charge level switch
Degree, high charge level alarm, if high charge level switch fault, grey position continues to raise, and reaches ash inlet tube position, there is foregoing operation principle
Understand, dust stratification can be discharged by dust leg road, and in discharge process, the mouth of pipe of the ash releasing tube by one-way cock module enclosure is opened on top.
In addition, airborne dust is lowered in ash releasing tube major requirement as far as possible, while away from the appropriate height in ground, it is easy to observe, overhaul and ship ash.
Ash releasing tube can use horizontally disposed mode as shown in the figure, in a further embodiment, can also use and level
Direction forms 0 ° of downward mode to 30 ° of angles and arranged, dust stratification is discharged simultaneously by deadweight.
As shown in figure 4, one-way cock component includes：
It is fixedly arranged on the detection mouth flange 31 of the mouth of pipe of ash releasing tube 22；
The affixed elastic pressure assembly with detection mouth flange 31；
Door rod 34, its one end are connected to close the bonnet 31 of the mouth of pipe, and the other end is connected with elastic pressure assembly.
Specifically, elastic pressure assembly includes spring support and spring 33；
Spring support includes bonnet 35 and connects some installation vertical rods 37 of bonnet 35 and detection mouth flange 31；Bonnet 35 with
Fixed guiding and limiting plate 36 between detection mouth flange 31；It is oriented to and limiting plate 36 has one formed with a pilot hole, door rod 34
First retainer, door rod 34 pass through the pilot hole, and the first retainer is between guiding and limiting plate 36 and bonnet 35；Bonnet 35
Formed with one second retainer；Spring 33 is sheathed on door rod 34, and both ends are stopped at foregoing first retainer and second stopped respectively
Dynamic portion.
As figure, bonnet 35, detection mouth flange 31, guiding and limiting plate 36 are parallel between each other.
Second retainer is preferably to adjust circle 39, and adjustment circle 39 is sheathed on door rod 34, and outside passes through helicitic texture and bonnet
35 mounting holes formed screw connection, have been internally formed spring locking groove.Adjustment circle 39 can adjust the pressure of spring 33 by rotating
Contracting degree, thus adjust force of the door rod 34 to bonnet 31.
Being provided with guiding and limiting plate 36 can be by the mobile-initiated contact-making switch 38 of the first retainer.Connect to protect
Switch 38 is touched, in addition to is fixedly arranged on the protecting cover 310 of guiding and limiting plate 36, thus completely cuts off contact-making switch and external environment condition,
Avoid reporting by mistake and damage.
In order that those skilled in the art become apparent from understanding the concrete structure of one-way cock component in the present embodiment, pass through figure
5 to Figure 14 are illustrated to each part.
In addition, with reference to figure 3, the mouth of pipe direction of ash inlet tube is backwards to the direction that ash bucket inside smoke flows；The mouth of pipe of ash inlet tube
For downward inclined tube mouth.It can thus prevent the mouth of pipe of ash inlet tube from causing coal ash directly because air-flow enters ash in face of flue gas
Pipe, angle be downwards in order to prevent deduster fall ash fall directly into ash inlet tube, can be to greatest extent by this structure design
Ground allows ash accumulation to flow into ash inlet tube after getting up, and avoiding dust stratification height from not yet reaching high charge level switch alarm height has grey entrance
Ash inlet tube.
It is very big one due in deduster steel construction load with reference to the structure described by above-described embodiment and relevant drawings
Divide is to design the storage ash load under the conditions of grey position limiting altitude.The mouth of pipe of ash inlet tube is highly less than grey position limiting altitude, and it is located at
Between high charge level switch height and grey position limiting altitude.Process is first to reach high charge level switch height, high charge level alarm, if high
Stuff level switch failure, grey position continue to raise, and reach ash inlet, and device ash discharge is simultaneously alarmed, if still exclude not in time, then ash
Position will reach and exceed the given grey position limiting altitude of design, will now overload, accident just occurs.
When high charge level switch is not reaching in normal condition ash bucket ash position, by pulling door rod to drive bonnet to make inside ash bucket
It is in communication with the outside by dust leg road, can substantially observes that extraneous air to the air draught of ash bucket inside, now may determine that ash bucket
It is internal normal.When dust stratification exceedes the limiting altitude for normally storing up grey height, ash meeting nature is flowed into dust leg road, with dust
Accumulation, promote bonnet to open, while touch contact-making switch, while ash bucket realizes automatic removing dust, transmitted for remote monitoring
Signal, ash and warning function are put under the serious dust stratification state of deduster automatically so as to realize.
In the state of bonnet does not automatically turn on, Daily Round Check can cut off contact-making switch power supply on the spot, artificial to pull
Door rod, ash bucket inner product ash state is checked, such as extraneous air because suction function is the air-breathing into ash bucket, then may determine that ash bucket
It is normal that grey state is stored up in inside.Resume contacts Switching Power Supply after inspection.
Obviously, described embodiment is only the utility model part of the embodiment, rather than whole embodiments.It is based on
Embodiment in the utility model, those of ordinary skill in the art are obtained all under the premise of creative work is not made
Other embodiment, belong to the scope of the utility model protection.
Claims (10)
- A kind of 1. automatic removing dust ash bucket under accident dust stratification state of deduster, it is characterised in that including：One bucket body, there is ash bucket design carrying material position and high charge level early warning material position；One dust leg road, there is the ash releasing tube for stretching into the ash inlet tube inside bucket body and stretching out outside bucket body；The ash inlet tube is located between ash bucket design carrying material position and high charge level early warning material position；The mouth of pipe of the ash releasing tube passes through an one-way cock module enclosure.
- 2. the automatic removing dust ash bucket under the accident dust stratification state of deduster as claimed in claim 1, it is characterised in that the row Ash pipe is horizontally disposed with.
- 3. the automatic removing dust ash bucket under the accident dust stratification state of deduster as claimed in claim 1, it is characterised in that the row Ash pipe forms downward 0 ° to 30 ° of angles with horizontal direction.
- 4. the automatic removing dust ash bucket under the accident dust stratification state of deduster as claimed in claim 1, it is characterised in that the list Include to valve member：It is fixedly arranged on a detection mouth flange of the mouth of pipe of ash releasing tube；An elastic pressure assembly affixed with the detection mouth flange；One door rod, its one end are connected to close a bonnet of the mouth of pipe, and the other end is connected with the elastic pressure assembly.
- 5. the automatic removing dust ash bucket under the accident dust stratification state of deduster as claimed in claim 4, it is characterised in that the bullet Property pressure assembly includes a spring support and a spring；The spring support includes a bonnet and connects some installation vertical rods of bonnet and detection mouth flange；The bonnet and detection A fixed guiding and limiting plate between mouth flange；It is oriented to and limiting plate is formed with a pilot hole, the door rod has one first to stop Dynamic portion, the door rod pass through the pilot hole, and first retainer is between guiding and limiting plate and bonnet；Bonnet formed with One second retainer；The spring housing is located at door rod, and both ends are stopped at foregoing first retainer and the second retainer respectively.
- 6. the automatic removing dust ash bucket under the accident dust stratification state of deduster as claimed in claim 5, it is characterised in that after described Lid, detection mouth flange, guiding and limiting plate are parallel between each other.
- 7. the automatic removing dust ash bucket under the accident dust stratification state of deduster as claimed in claim 5, it is characterised in that described Two retainers are that an adjustment is enclosed, and the adjustment snare is located at the door rod, the outside peace formed by helicitic texture and bonnet Hole connection is filled, has been internally formed spring locking groove.
- 8. the automatic removing dust ash bucket under the accident dust stratification state of deduster as claimed in claim 5, it is characterised in that described to lead To and limiting plate on be provided with can be by a mobile-initiated contact-making switch for first retainer.
- 9. the automatic removing dust ash bucket under the accident dust stratification state of deduster as claimed in claim 1, it is characterised in that it is described enter The mouth of pipe direction of ash pipe is backwards to the direction that ash bucket inside smoke flows.
- 10. the automatic removing dust ash bucket under the accident dust stratification state of deduster as claimed in claim 9, it is characterised in that described The mouth of pipe of ash inlet tube is downward inclined tube mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720857049.8U CN207191990U (en) | 2017-07-14 | 2017-07-14 | Automatic removing dust ash bucket under the accident dust stratification state of deduster |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720857049.8U CN207191990U (en) | 2017-07-14 | 2017-07-14 | Automatic removing dust ash bucket under the accident dust stratification state of deduster |
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| CN207191990U true CN207191990U (en) | 2018-04-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107310876A (en) * | 2017-07-14 | 2017-11-03 | 大唐环境产业集团股份有限公司 | Automatic removing dust ash bucket under the accident dust stratification state of deduster |
-
2017
- 2017-07-14 CN CN201720857049.8U patent/CN207191990U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107310876A (en) * | 2017-07-14 | 2017-11-03 | 大唐环境产业集团股份有限公司 | Automatic removing dust ash bucket under the accident dust stratification state of deduster |
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