CN205550011U - Be used for desulfurated flue gas distributor of rotary atomization - Google Patents
Be used for desulfurated flue gas distributor of rotary atomization Download PDFInfo
- Publication number
- CN205550011U CN205550011U CN201620307257.6U CN201620307257U CN205550011U CN 205550011 U CN205550011 U CN 205550011U CN 201620307257 U CN201620307257 U CN 201620307257U CN 205550011 U CN205550011 U CN 205550011U
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- truncated cone
- shaped
- vane group
- desulfurizing tower
- guide vane
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Abstract
The utility model relates to a be used for desulfurated flue gas distributor of rotary atomization, including setting up isobaric plenum, convergent conical ring form airflow channel and the flaring conical ring form airflow channel in the desulfurizing tower top rotary atomizer outside, annular exhanst gas outlet is established along circumference to isobaric plenum medial surface, and exhanst gas outlet department establishes top guide vanes group, convergent conical ring form airflow channel has the cyclic annular airflow channel to the desulfurizing tower interior shrinkage, establishes guide vanes group no. 1 along circumference in the convergent conical ring form airflow channel, flaring conical ring form airflow channel has the cyclic annular airflow channel to desulfurizing tower inside expansion, establishes guide vanes group no. 2 along circumference in the flaring conical ring form airflow channel. The utility model discloses can redistribute the flue gas air current that gets into the desulfurizing tower, make the flue gas strictly admit air with two the tunnel to can reduce the distribution turbulent flow circumstances of two types of air currents, make more contact of air current and atomized droplets, thereby improve flue gas desulfurization purifying effect, improve the material utilization ratio, prevent the desulfurizing tower scale deposit.
Description
Technical field
This utility model relates to rotating spraying technical field of desulfurization, particularly relates to a kind of flue gas for rotary-atomizing desulfurization and distributes
Device.
Background technology
Rotary-atomizing technology has wide range of applications, including being dried, cool down, absorb and filed of flue gas purification etc..It is clean at flue gas
The feature of change field application is: flue-gas temperature is middle low temperature, and exhaust gas volumn is big, and process liquid is many, requires the tightest to sanitary condition
Lattice etc..According to above feature, in order to enable rotary-atomizing technology to have more preferably effect in gas cleaning, need to focus on cigarette
Gas and the contact conditions of process liquid, enable substantial amounts of flue gas the most effectively to contact with process liquid.Flue gas and process liquor
The contact area of body, time of contact and the way of contact are the three big factors affecting gas cleaning effect.
Rotary-atomizing desulfurization is one of topmost sulfur method of filed of flue gas purification, and its operation principle is by rotary atomizer
Driven by motor rotary-atomizing dish high speed rotating, makes doctor solution be dispersed into fine drop, with bowl-type spray form enter in desulfurizing tower with
Smoke reaction.In rotary-atomizing sulfur removal technology, flue gas and the contact area of process liquid are also main by the process liquor scale of construction and droplet
Size determines.And gas-liquid contact time and the way of contact are closely bound up with the allocation situation of entrance desulfurizing tower flue gas.In order to
Increasing time of contact, flue gas should have similar flow regime to liquid；In order to make flue gas that the desiccation of process liquid to be reached
To maximum, make a large amount of flue gas the most appropriate with a large amount of desulfurization drop contact of spraying area root.This can when needing flue gas to distribute
Flue gas is divided into two class air-flows: a class is swirling eddy, and flowing velocity is less, is similar to spray droplet flow direction and contacts
Time is long；One class is air-flow radially downward, and flowing velocity is bigger, it is possible to be evaporated rapidly a large amount of desulfurization drop.
Smoke distributor is one of important device of desulfurizing tower, is located at the top of rotary-atomizing desulfurizing tower.Existing flue gas distributes
The most simple in construction of device, when air-flow enters desulfurizing tower, or can not be divided into above two air-flow by flue gas, or formed
Two class air-flows can not reach good distribution of air flow effect；Its result is that flue gas can not effectively contact with desulfurization drop, and gas-liquid is mixed
Conjunction situation is disorderly, directly affects desulfuration efficiency, not only wastes material, and make the easy fouling of desulfurizing tower equipment impaired.
Summary of the invention
This utility model provides a kind of smoke distributor for rotary-atomizing desulfurization, it is possible to redistributes and enters desulfurizing tower
Flue gas stream, makes flue gas strictly with two-way air inlet；And the distribution turbulent flow situation of two class air-flows can be reduced, allow the flow to
The drop produced with rotary atomizer more effectively contacts, thus improves flue gas desulfurization clean-up effect, improves utilization of materials, subtracts
Few desulfurizing tower scale formation occurs.
In order to achieve the above object, this utility model realizes by the following technical solutions:
A kind of smoke distributor for rotary-atomizing desulfurization, including the equipressure being arranged on outside desulfurizing tower rotary-top nebulizer
Air compartment, tapered conical annular flow passage and flaring tapered annular gas channel；Isobaric air compartment is positioned at the top of smoke distributor,
Generally scroll casing shape, and there is tangentially-arranged smoke inlet, isobaric air compartment medial surface circumferentially sets ring smoke outlet, cigarette
Gas outlet sets top guide vane group；Tapered conical annular flow passage and flaring tapered annular gas channel are less than isobaric wind
Room is arranged, and tapered conical annular flow passage has the annular flow passage to desulfurizing tower internal contraction, the ring-type gas of tapered conical
Guide vane group one is circumferentially set in circulation road；Flaring tapered annular gas channel has to the internal ring-type gas expanded of desulfurizing tower
Circulation road, circumferentially sets guide vane group two in flaring tapered annular gas channel.
Set gradually from inside to outside outside described rotary atomizer outside truncated cone-shaped inwall, segmentation truncated cone-shaped demarcation strip and truncated cone-shaped
Wall, wherein truncated cone-shaped inwall basal diameter is minimum, and tapering is minimum；The basal diameter of truncated cone-shaped outer wall is maximum, and tapering is maximum；
Segmentation truncated cone-shaped demarcation strip is made up of the wallboard of two sections of different taperings；Formed between truncated cone-shaped inwall and segmentation truncated cone-shaped demarcation strip
Tapered conical annular flow passage, forms flaring tapered annular air-flow and leads between segmentation truncated cone-shaped demarcation strip and truncated cone-shaped outer wall
Road；
Along height higher than edge height on isobaric air compartment exhanst gas outlet on described truncated cone-shaped inwall；Along high on segmentation truncated cone-shaped demarcation strip
Spend concordant along height with on truncated cone-shaped outer wall, the lower lower edge height being higher than truncated cone-shaped outer wall along height.
Described guide vane group one, with desulfurizing tower center as axle, is radially arranged axisymmetrically；Guide vane group two is with in desulfurizing tower
The heart is the circumferentially rotatable arrangement of axle, and the anglec of rotation of each blade is equal；Segmentation truncated cone-shaped demarcation strip passes through guide vane group one
With guide vane group two is fixed between truncated cone-shaped inwall and truncated cone-shaped outer wall.
Described top guide vane group is made up of radial direction water conservancy diversion vane group and rotating flow guidance vane group, and radially water conservancy diversion vane group and
The blade stagger of rotating flow guidance vane group is arranged；Top guide vane group protrudes from isobaric air compartment medial surface, and its top is provided with anti-
Gas leakage top board.
Compared with prior art, the beneficial effects of the utility model are:
1) flue gas can be made strictly to be divided into two-way to enter desulfurizing tower, and a road has velocity component radially downward, and speed is relatively
Greatly；One tunnel has the velocity component that rotation is downward, and speed is less；So that flue gas can with rotating spraying drop more added with
The contact of effect ground；
2) multiple guide vane groups are respectively provided with different arrangement forms, and the air-flow that can make entrance desulfurizing tower is the most stable,
Reduce turbulent air flow phenomenon, and then the random of desulfurization drop is carried by minimizing, reduces the generation of desulfurizing tower scale formation；
3) compared with adjustable smoke distributor, there is less droop loss.
Accompanying drawing explanation
Fig. 1 is the axial section of a kind of concrete structure of smoke distributor described in the utility model.
Fig. 2 is the oblique cross-sectional figure of 2 tapered annular exhaust gases passes described in the utility model.
In figure: 1. the isobaric air compartment medial surface of the isobaric air compartment exhanst gas outlet 4. of the isobaric air compartment 3. of isobaric air compartment smoke inlet 2.
5. anti-gas-leak top board 6. radially water conservancy diversion vane group 7. rotating flow guidance vane group 8. desulfurizing tower 9. truncated cone-shaped outer wall 10.
Segmentation truncated cone-shaped demarcation strip 11. truncated cone-shaped inwall 12. rotary atomizer 13. flaring tapered annular exhaust gases passes 14.
Tapered conical ring-type exhaust gases passes 15. guide vane group 2 16. guide vane group 1 reinforcement
Detailed description of the invention
Below in conjunction with the accompanying drawings detailed description of the invention of the present utility model is described further:
As Figure 1-Figure 2, a kind of smoke distributor for rotary-atomizing desulfurization described in the utility model, including arranging
Isobaric air compartment 2, tapered conical annular flow passage 14 and flaring taper outside desulfurizing tower 8 rotary-top nebulizer 12
Annular flow passage 13；Isobaric air compartment 2 is positioned at the top of smoke distributor, generally scroll casing shape, and has tangentially-arranged
Smoke inlet 1, isobaric air compartment medial surface 4 circumferentially sets ring smoke outlet 3, sets top water conservancy diversion leaf at exhanst gas outlet 3
Sheet group；Tapered conical annular flow passage 14 and flaring tapered annular gas channel 13 are arranged less than isobaric air compartment 2, tapered
Tapered annular gas channel 14 has the annular flow passage to desulfurizing tower 8 internal contraction, tapered conical annular flow passage
Guide vane group 1 is circumferentially set in 14；Flaring tapered annular gas channel 13 has to the internal ring expanded of desulfurizing tower 8
Shape gas channel, circumferentially sets guide vane group 2 15 in flaring tapered annular gas channel 13.
Truncated cone-shaped inwall 11, segmentation truncated cone-shaped demarcation strip 10 and is set gradually from inside to outside outside described rotary atomizer 12
Truncated cone-shaped outer wall 9, wherein truncated cone-shaped inwall 11 basal diameter is minimum, and tapering is minimum；The basal diameter of truncated cone-shaped outer wall 9
Maximum, tapering is maximum；Segmentation truncated cone-shaped demarcation strip 10 is made up of the wallboard of two sections of different taperings；Truncated cone-shaped inwall 11 with point
Tapered conical annular flow passage 14, segmentation truncated cone-shaped demarcation strip 10 and truncated cone-shaped is formed between section truncated cone-shaped demarcation strip 10
Flaring tapered annular gas channel 13 is formed between outer wall 9；
Along height higher than edge height on isobaric air compartment exhanst gas outlet 3 on described truncated cone-shaped inwall 11；Segmentation truncated cone-shaped demarcation strip
Along the most concordant along height with on truncated cone-shaped outer wall 9 on 10, lower along being highly higher than the lower along highly of truncated cone-shaped outer wall 11.
Described guide vane group 1, with desulfurizing tower 8 center as axle, is radially arranged axisymmetrically；Guide vane group 2 15 with
Desulfurizing tower 8 center is the circumferentially rotatable arrangement of axle, and the anglec of rotation of each blade is equal；Segmentation truncated cone-shaped demarcation strip 10 leads to
Cross guide vane group 1 and guide vane group 2 15 is fixed between truncated cone-shaped inwall 11 and truncated cone-shaped outer wall 9.
Described top guide vane group is made up of radial direction water conservancy diversion vane group 6 and rotating flow guidance vane group 7, and radially guide vane
The blade stagger of group 6 and rotating flow guidance vane group 7 is arranged；Top guide vane group protrudes from isobaric air compartment medial surface 4, its
Top is provided with anti-gas-leak top board 5.
The flue gas distribution method of application a kind of smoke distributor for rotary-atomizing desulfurization of this utility model, including:
1) flue gas enters isobaric air compartment 2 from tangential, and the isobaric air compartment 2 along scroll casing shape flows, and the radial component of its flowing is gradually
Strengthen, and flow out from isobaric air compartment interior annular exhanst gas outlet 3 under suction function；
2) it is arranged on the top guide vane group at isobaric air compartment exhanst gas outlet 3 and flue gas is played preliminary guide functions, make cigarette
Gas has a bigger radial velocity component, and an entrance desulfurizing tower 8 in two tapered annular passages from below；
3) air-flow that rotation direction component is bigger from the flue gas that isobaric air compartment exhanst gas outlet 3 is discharged enters into distance exhanst gas outlet 3
In nearer flaring tapered annular exhaust gases passes 13, guide vane group 2 15 plays continuation increase rotation to entering air-flow therein
Turn the effect of component；And the air-flow that radial component is bigger from the flue gas that isobaric air compartment exhanst gas outlet 3 is discharged enters near desulfurization
In the ring-type exhaust gases passes of tapered conical 14 at tower 8 center, guide vane group 1 plays continuation increasing to entering air-flow therein
Add the effect of radial component；
4) the rotary-atomizing dish high speed rotating of rotary atomizer 12 makes doctor solution be dispersed into fine drop, enters with bowl-type spray form
Enter in desulfurizing tower 8 with smoke contacts desulfurization；Through flaring tapered annular exhaust gases passes 13 and the ring-type exhaust gases passes of tapered conical
After 14, flue gas is divided into two-way: a road flue gas, from rotating spraying range of atomization root, enters de-with relatively large downward velocity
Sulfur tower 8, its flowing velocity is bigger, it is possible to be evaporated rapidly a large amount of desulfurization drop；Another road is directly over nebulization region, with phase
Less rotation downward velocity is entered desulfurizing tower 8, is fully contacted with atomized drop and carries out desulphurization reaction；Two-way flue gas is orderly
Ground enters in desulfurizing tower 8, flows parallel with spray droplet, can increase gas liquid interfacial area and time of contact, thus improve de-
Sulphur efficiency.
In this utility model, truncated cone-shaped inwall 11, segmentation truncated cone-shaped demarcation strip 10 and truncated cone-shaped outer wall 9 are same with desulfurizing tower 8
Axle is arranged, and wherein the basal diameter of truncated cone-shaped inwall 11 is minimum and its overall tapering is minimum, and the bottom surface of truncated cone-shaped outer wall 9 is straight
Footpath is maximum and its overall tapering is maximum；And the basal diameter of segmentation truncated cone-shaped demarcation strip 10 and tapering can adjust as required,
And adjusting range circle is within the similar parameter area of truncated cone-shaped inwall 11 and truncated cone-shaped outer wall 9.
In terms of elevation design, the upper edge of truncated cone-shaped inwall 11 highly should be higher than that the upper along height of isobaric air compartment exhanst gas outlet 3；
The upper edge of segmentation truncated cone-shaped demarcation strip 10 the most substantially with on truncated cone-shaped outer wall 9 along concordant, whole height be more than truncated cone-shaped
The whole height of outer wall 9, i.e. the lower edge of segmentation truncated cone-shaped demarcation strip 10 is less than the lower edge of truncated cone-shaped outer wall 9.This height
On arrangement, the entrance height making two tapered annular exhaust gases passes 13,14 is consistent, but flaring tapered annular flue gas
The outlet height of passage 13 is more than the outlet height of the ring-type exhaust gases passes of tapered conical 14, thus can reduce swirling eddy diameter
To the impact of air-flow.
In order to ensure the air-flow that tapered conical ring-type exhaust gases passes 14 exports have less rotational velocity component and bigger to
Lower velocity component, the guide vane group 1 in the ring-type exhaust gases passes of tapered conical 14 with desulfurizing tower 8 center as axle, axle pair
It is radially arranged with claiming, forms multiple gas channel vertically downward.And in order to make flaring tapered annular exhaust gases passes 13 export
Air-flow there is bigger rotational velocity component and less downward velocity component, in flaring tapered annular exhaust gases passes 13
Guide vane group 2 15 with desulfurizing tower 8 center as axle, circumferentially rotatable arrangement, form multiple swirling eddy passage.Segmentation
Being connected by guide vane group 1 is fixing with truncated cone-shaped inwall 11 inside truncated cone-shaped demarcation strip 10, water conservancy diversion leaf is passed through in outside
Sheet group 2 15 is fixing with truncated cone-shaped outer wall 9 to be connected.
As it is shown in figure 1, isobaric air compartment exhanst gas outlet 3 is arranged in the bottom of isobaric air compartment medial surface 4, at isobaric air compartment flue gas
Export and at 3, be provided with radially water conservancy diversion vane group 6 and rotating flow guidance vane group 7.In 2 vane group, the top of each blade is respectively
Being connected with anti-gas-leak top board 5, bottom is fixing with desulfurizing tower 8 upper surface to be connected.Therefore, isobaric air compartment exhanst gas outlet 3 is adjacent
Interlobate space becomes flue gas and leaves unique passage of isobaric air compartment 2, and flue gas is through the guiding function of top guide vane
After, it is provided with bigger radial velocity.
As depicted in figs. 1 and 2, the tapering of the upper and lower of segmentation truncated cone-shaped demarcation strip 10 is different, thus within it
Define two kinds of different tapered annular exhaust gases passes with outside, the ring-type exhaust gases passes of tapered conical 14 inside it is opening
The ring-type exhaust gases passes gradually tapered up downwards, and the flaring tapered annular exhaust gases passes 13 outside it gradually expands for Open Side Down
The ring-type exhaust gases passes of exhibition.
Because obtaining rotating and two kinds of downward air-flows, guide vane group 1 arranges form with guide vane group 2 15
Different.Due to from the flue gas that isobaric air compartment exhanst gas outlet 3 is discharged, the air-flow that rotation direction velocity component is bigger be easily accessible away from
In the outside flaring tapered annular exhaust gases passes 13 that separable flue gas outlet is nearer, so the guide vane group 2 15 being provided with is wanted
The air-flow entered in this exhaust gases passes is played the effect continuing to increase rotational velocity component；And from isobaric air compartment exhanst gas outlet 3
The air-flow that the radial velocity component of discharge is bigger is easier to the ring-type flue gas of tapered conical at close desulfurizing tower 8 center inside entrance
In passage 14, increase so the air-flow entering passage to be played continuation by the guide vane group 1 arranged in this exhaust gases passes
The effect of radial velocity component.Owing to airflow requirement radially downward is more, and the entering of the ring-type exhaust gases passes of tapered conical 14
The isobaric air compartment exhanst gas outlet 3 of mouth distance farther out, should lead to than flaring tapered annular flue gas so the entrance section of this exhaust gases passes is long-pending
The entrance section in road 13 is long-pending big.Since it is desired that prevent the swirling eddy flowed out from smoke distributor from downdraught being interfered,
The whole height of truncated cone-shaped outer wall 9 is less, when on segmentation truncated cone-shaped demarcation strip 10 with truncated cone-shaped outer wall 9 along absolute altitude consistent time,
The outlet height that can make flaring tapered annular exhaust gases passes 13 is in higher position.Meanwhile, segmentation round platform demarcation strip 10 times
Lower close along height along with truncated cone-shaped inwall 11, it is possible to make from the ring-type exhaust gases passes of tapered conical 14 downdraught out
Directly effectively contact with the doctor solution drop thrown away from nebulizer 12, and increase time of contact.
The above, only this utility model preferably detailed description of the invention, but protection domain of the present utility model does not limit to
In this, any those familiar with the art is in the technical scope that this utility model discloses, according to this utility model
Technical scheme and utility model conceive equivalent or change in addition, all should contain protection domain of the present utility model it
In.
Claims (5)
1. the smoke distributor for rotary-atomizing desulfurization, it is characterised in that include being arranged on desulfurizing tower rotary-top
Isobaric air compartment, tapered conical annular flow passage and flaring tapered annular gas channel outside nebulizer；Isobaric air compartment is positioned at
The top of smoke distributor, generally scroll casing shape, and there is tangentially-arranged smoke inlet, isobaric air compartment medial surface is circumferentially
If ring smoke exports, smoke outlet sets top guide vane group；Tapered conical annular flow passage and flaring tapered annular
Gas channel is arranged less than isobaric air compartment, and tapered conical annular flow passage has to the annular flow of desulfurizing tower internal contraction logical
Road, circumferentially sets guide vane group one in tapered conical annular flow passage；Flaring tapered annular gas channel has to desulfurization
The internal annular flow passage expanded of tower, circumferentially sets guide vane group two in flaring tapered annular gas channel.
A kind of smoke distributor for rotary-atomizing desulfurization the most according to claim 1, it is characterised in that described
Truncated cone-shaped inwall, segmentation truncated cone-shaped demarcation strip and truncated cone-shaped outer wall, Qi Zhongyuan is set gradually from inside to outside outside rotary atomizer
Platform shape inwall basal diameter is minimum, and tapering is minimum；The basal diameter of truncated cone-shaped outer wall is maximum, and tapering is maximum；Segmentation truncated cone-shaped
Demarcation strip is made up of the wallboard of two sections of different taperings；Tapered conical ring is formed between truncated cone-shaped inwall and segmentation truncated cone-shaped demarcation strip
Shape gas channel, forms flaring tapered annular gas channel between segmentation truncated cone-shaped demarcation strip and truncated cone-shaped outer wall.
A kind of smoke distributor for rotary-atomizing desulfurization the most according to claim 2, it is characterised in that described
Along height higher than edge height on isobaric air compartment exhanst gas outlet on truncated cone-shaped inwall；Along height and round platform on segmentation truncated cone-shaped demarcation strip
On shape outer wall concordant along height, lower along height higher than truncated cone-shaped outer wall lower along height.
A kind of smoke distributor for rotary-atomizing desulfurization the most according to claim 1, it is characterised in that described
Guide vane group one, with desulfurizing tower center as axle, is radially arranged axisymmetrically；Guide vane group two is with desulfurizing tower center for axle edge
Rotate in a circumferential direction arrangement, and the anglec of rotation of each blade is equal；Segmentation truncated cone-shaped demarcation strip passes through guide vane group one and water conservancy diversion leaf
Sheet group two is fixed between truncated cone-shaped inwall and truncated cone-shaped outer wall.
A kind of smoke distributor for rotary-atomizing desulfurization the most according to claim 1, it is characterised in that described
Top guide vane group is made up of radial direction water conservancy diversion vane group and rotating flow guidance vane group, and radially water conservancy diversion vane group and rotating flow guidance
The blade stagger of vane group is arranged；Top guide vane group protrudes from isobaric air compartment medial surface, and its top is provided with anti-gas-leak top board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620307257.6U CN205550011U (en) | 2016-04-13 | 2016-04-13 | Be used for desulfurated flue gas distributor of rotary atomization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620307257.6U CN205550011U (en) | 2016-04-13 | 2016-04-13 | Be used for desulfurated flue gas distributor of rotary atomization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205550011U true CN205550011U (en) | 2016-09-07 |
Family
ID=56810758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620307257.6U Withdrawn - After Issue CN205550011U (en) | 2016-04-13 | 2016-04-13 | Be used for desulfurated flue gas distributor of rotary atomization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205550011U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105709580A (en) * | 2016-04-13 | 2016-06-29 | 中冶焦耐工程技术有限公司 | Smoke distributor for rotary atomizing desulfurization and smoke distribution method |
| CN109028051A (en) * | 2018-10-22 | 2018-12-18 | 北京巴布科克·威尔科克斯有限公司 | The low CO high-efficient pulverized coal burner of three eddy flows of one kind |
| CN113415845A (en) * | 2021-06-29 | 2021-09-21 | 南方电网电力科技股份有限公司 | Spray drying tower for desulfurization waste water |
-
2016
- 2016-04-13 CN CN201620307257.6U patent/CN205550011U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105709580A (en) * | 2016-04-13 | 2016-06-29 | 中冶焦耐工程技术有限公司 | Smoke distributor for rotary atomizing desulfurization and smoke distribution method |
| CN109028051A (en) * | 2018-10-22 | 2018-12-18 | 北京巴布科克·威尔科克斯有限公司 | The low CO high-efficient pulverized coal burner of three eddy flows of one kind |
| CN109028051B (en) * | 2018-10-22 | 2024-04-30 | 北京巴布科克·威尔科克斯有限公司 | Three-cyclone low-CO high-efficiency pulverized coal burner |
| CN113415845A (en) * | 2021-06-29 | 2021-09-21 | 南方电网电力科技股份有限公司 | Spray drying tower for desulfurization waste water |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160907 Effective date of abandoning: 20180227 |