CN111911944A - Novel wet-type deslagging system - Google Patents
Novel wet-type deslagging system Download PDFInfo
- Publication number
- CN111911944A CN111911944A CN202010590246.4A CN202010590246A CN111911944A CN 111911944 A CN111911944 A CN 111911944A CN 202010590246 A CN202010590246 A CN 202010590246A CN 111911944 A CN111911944 A CN 111911944A
- Authority
- CN
- China
- Prior art keywords
- slag
- water
- conveyor
- scraper
- pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002893 slag Substances 0.000 claims abstract description 115
- 239000003245 coal Substances 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 111
- 238000006477 desulfuration reaction Methods 0.000 claims description 17
- 230000023556 desulfurization Effects 0.000 claims description 17
- 239000002351 wastewater Substances 0.000 claims description 16
- 238000011010 flushing procedure Methods 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 6
- 230000000630 rising effect Effects 0.000 claims description 3
- 238000005299 abrasion Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 description 8
- 239000013049 sediment Substances 0.000 description 7
- 208000028659 discharge Diseases 0.000 description 5
- 230000001174 ascending effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 230000003020 moisturizing effect Effects 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J1/00—Removing ash, clinker, or slag from combustion chambers
- F23J1/06—Mechanically-operated devices, e.g. clinker pushers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2700/00—Ash removal, handling and treatment means; Ash and slag handling in pulverulent fuel furnaces; Ash removal means for incinerators
- F23J2700/001—Ash removal, handling and treatment means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The invention discloses a novel wet slag removal system, which comprises a slag well arranged below a boiler and a scraper slag conveyor arranged below the slag well, wherein the scraper slag conveyor is sequentially provided with a horizontal section and an inclined-rising section which is connected with the horizontal section and is obliquely arranged at a certain angle along a conveying direction, a secondary scraper conveyor for conveying coal slag into a slag bin is arranged behind the scraper slag conveyor, the secondary scraper conveyor comprises a horizontal conveying section and an inclined-rising conveying section which is connected with the horizontal conveying section and is obliquely arranged at a certain angle, and the inclined-rising section of the scraper slag conveyor is connected with the horizontal conveying section of the secondary scraper conveyor, the invention adopts a two-stage transfer mode of the scraper slag conveyor and the secondary conveyor to convey the coal slag into the slag bin, the length of the scraper slag conveyor can be effectively shortened, the lifting angle is reduced, the chain is shortened, the number of scrapers is reduced, the bearing load and the driving torque of each gear train are correspondingly reduced (the long-time use of large load is avoided), the chain abrasion caused by large slag amount can be avoided.
Description
Technical Field
The invention relates to a novel wet slag removal system, which is used in occasions where the coal quality of a thermal power plant is poor (coking is serious, slag amount is large), a chain of a slag conveyor is seriously abraded, the comprehensive utilization value of dry slag in the area is not high, and desulfurization wastewater of the power plant cannot be effectively treated.
Background
Taking a thermal power plant as an example, the safe and stable operation of the wet scraper slag conveyor is an important aspect about the overall stable operation of the boiler, and in addition, zero discharge of desulfurization waste water of the power plant is an inevitable requirement for electric power environmental protection.
In the inherent concept of designers, the fewer devices and the fewer fault points, the smaller the overhaul and maintenance amount, so the general design initially considers the arrangement form of one-step warehousing of the dragger. However, in consideration of the structural characteristics of the slag conveyor, the smaller the head raising angle of the slag conveyor is, the gentler and shorter the inclined rising section is, the smaller the corresponding pulling force of the chain is, and meanwhile, when the horizontal section and the inclined rising section of the slag conveyor pass through the inner guide wheel, the smaller the relative acting force and the friction force to the inner guide wheel are. The longer the whole dragveyer is, the longer the chain is, the more the scrapers are, and the larger the accumulation amount after the chain is worn, the larger the later maintenance amount is. Once a problem occurs, repair or overhaul is too complicated.
In addition, the conventional scheme for zero discharge of desulfurization wastewater, such as pretreatment plus evaporative crystallization, pretreatment plus membrane method plus evaporative crystallization, generally has high equipment investment and high operation energy consumption; the medicament cost is high, the process flow is long, and the evaporation crystallization is easy to cause the blockage of the flue part and increase the operation risk of the unit.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a novel wet slag removal system, coal slag is conveyed into a slag bin by adopting a two-stage transfer mode of a scraper slag conveyor and a two-stage conveyor, the length of the scraper slag conveyor can be effectively shortened, the head raising angle is reduced, a chain is shortened, the number of scrapers is reduced, the bearing load and the driving torque of each gear train are correspondingly reduced (the large load is avoided being used for a long time), the maintenance amount is small, the maintenance time is short, and meanwhile, the desulfurization wastewater can be fully utilized under the condition that wet slag removal is free of overflow.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides a novel wet-type deslagging system, is including setting up in the slag well of boiler below and setting up in the scraper blade dragveyer of slag well below, the scraper blade dragveyer sets gradually the horizontal segment along direction of delivery and is connected, is the inclined-rising section that certain angle slope set up with the horizontal segment, the rear of scraper blade dragveyer sets up the second grade scraper conveyor to carrying the cinder in the sediment storehouse, second grade scraper conveyor includes the horizontal transport section and is connected, is the inclined-rising section of inclined-rising transport section and scraper blade dragveyer that certain angle slope set up and passes through the tee bend and is connected with second grade scraper conveyor's horizontal transport section with the horizontal transport section.
The technical scheme of the invention is further improved as follows: the emergency water replenishing pipe, the automatic water replenishing pipe and the flushing water pipe are arranged above the scraper slag conveyor, the emergency water replenishing pipe is communicated with the water supply pipe, and the automatic water replenishing pipe and the flushing water pipe are respectively communicated with the desulfurization waste water pipe.
The technical scheme of the invention is further improved as follows: valves are respectively arranged on the emergency water replenishing pipe, the automatic water replenishing pipe and the flushing water pipe.
The technical scheme of the invention is further improved as follows: the scraper slag conveyor is not provided with an external water circulation system, and the water temperature of the tank body is kept at 70 ℃.
The technical scheme of the invention is further improved as follows: and the scraper slag conveyor is also provided with a thermal resistance temperature sensor, a radar liquid level meter and a liquid level switch.
The technical scheme of the invention is further improved as follows: the lower part of the scraper slag dragging machine is provided with a water drain pipe and an overflow water pipe, the lower part of the secondary scraper conveyor is provided with a water drain pipe, and the water drain pipe and the overflow water pipe are communicated with the overhaul pool through pipelines.
The technical scheme of the invention is further improved as follows: and valves are respectively arranged on the water drain pipe and the overflow water pipe.
The technical scheme of the invention is further improved as follows: the overhaul pool is communicated with the desulfurization waste pipe through a pipeline, and a water pump is arranged on the pipeline.
The technical scheme of the invention is further improved as follows: and a water seal inserting plate is arranged at a slag outlet of the slag well.
Due to the adoption of the technical scheme, the invention has the technical progress that:
1. according to the invention, the coal slag is conveyed into the slag bin by adopting a two-stage transfer mode of the scraper slag conveyor and the two-stage conveyor, so that the length of the scraper slag conveyor can be effectively shortened, the head raising angle is reduced, the chain is shortened, the number of scrapers is reduced, the bearing load and the driving torque of each gear train are correspondingly reduced (large load is avoided being used for a long time), the maintenance amount is small, the overhaul time is short, the chain abrasion caused by large slag amount can be avoided, although the one-step bin loading is changed into the two-step bin loading, one conveying device is added, the two-stage conveyor does not need to play a role in maintaining pressure of a hearth, cooling water is not needed, and only slag is conveyed, so that the gear train of the slag conveyor does not worry about the corrosion of slag water, the; if equipment failure occurs, the three-way pipe can be used for switching to carry out slag discharge treatment, and the production continuation cannot be influenced.
2. The invention does not have an external water circulation system, only an automatic water replenishing pipe and an emergency water replenishing pipe are arranged on the slag conveyor to replenish the evaporation loss of water in the slag conveyor and the water taken away by slag, and the tank body achieves dynamic heat balance: the method comprises the following steps that water in a tank body is evaporated and absorbed, the water in the tank body is supplemented and absorbed, the heat is emitted to the atmosphere, the heat brought by slag and the heat brought by boiler radiation are all the same, so that the water temperature of the tank body of a slag conveyor is kept at 70 ℃, and a water circulating system is not required to be arranged;
simultaneously, the automatic water replenishing, the slag bin washing water and the chain washing water all adopt desulfurization waste water, slag water in the shell of the slag conveyor is alkaline due to the material characteristics of bottom slag of the boiler, and the desulfurization waste water is adopted for water replenishing, so that the alkaline slag water can be neutralized, the slag water is neutral, and the corrosion to the scraper slag conveyor is reduced;
in addition, the overhaul pool receives a small amount of overflow water of the slag conveyor, the recovered overflow water can be returned to the slag conveyor for water supplement and slag bin and chain flushing water through the water pump, and the whole system can not discharge desulfurization wastewater.
Drawings
FIG. 1 is a schematic structural view of the present invention;
the device comprises a slag well 1, a water seal inserting plate 2, a scraper slag salvaging machine 3, a second-stage scraper conveyor 4, a slag bin 5, a water supply pipe 6, a desulfurization waste water pipe 7, an emergency water replenishing pipe 8, an automatic water replenishing pipe 9, a flushing water pipe 10, a water discharge pipe 11, a water discharge pipe 12, an overflow water pipe 13 and an overhaul pool.
Detailed Description
The present invention will be described in further detail with reference to the following examples:
as shown in fig. 1, a novel wet slag removal system adopts a two-stage transfer mode of a scraper slag conveyor and a two-stage conveyor to convey coal slag into a slag bin, so that the length of the scraper slag conveyor can be effectively shortened, the raising angle is reduced, chains are shortened, the number of scrapers is reduced, the bearing load and the driving torque of each gear train are correspondingly reduced (the large load is avoided being used for a long time), the maintenance amount is small, the overhaul time is short, the chain abrasion caused by the large slag amount can be avoided, although the one-step bin feeding is changed into the two-step bin feeding compared with the one-step bin feeding, one conveying device is added, the two-stage conveyor does not need to play a role in maintaining pressure of a hearth, cooling water is not needed, only slag is conveyed, so that the corrosion of slag water of the gear train of the slag conveyor does not need; if equipment failure occurs, the three-way pipe can be used for switching to carry out slag discharge treatment, and the production continuation cannot be influenced.
The slag well comprises a slag well 1 arranged below a boiler and a scraper slag dragging machine 3 arranged below the slag well 1, wherein a slag outlet of the slag well 1 is provided with a water seal inserting plate 2. And a thermal resistance temperature sensor, a radar liquid level meter and a liquid level switch are arranged on the scraper slag conveyor 3. The scraper slag conveyor 3 is sequentially provided with a horizontal section and an inclined ascending section which is connected with the horizontal section and is arranged obliquely at a certain angle along the conveying direction, a secondary scraper conveyor 4 which is used for conveying coal slag into a slag bin 5 is arranged behind the scraper slag conveyor 3, the secondary scraper conveyor 4 comprises a horizontal conveying section and an inclined ascending conveying section which is connected with the horizontal conveying section and is arranged obliquely at a certain angle, the inclined ascending section of the scraper slag conveyor 3 is connected with the horizontal conveying section of the secondary scraper conveyor 4 through a tee joint, the height and the angle of the inclined ascending section are only related to the height of an inlet of the horizontal conveying section of the secondary scraper conveyor 4, so that the lifting angle of the scraper slag conveyor 3 is reduced, the length is shortened, a chain is shortened, the number of scrapers is reduced, the bearing load of each wheel train is smaller, the driving torque of the slag conveyor is correspondingly reduced (the use of a large load is avoided for a long time), the maintenance amount is, the chain abrasion caused by large slag amount can be avoided.
An emergency water replenishing pipe 8, an automatic water replenishing pipe 9 and a flushing water pipe 10 are arranged above the scraper slag dragging machine 3, and valves are respectively arranged on the emergency water replenishing pipe 8, the automatic water replenishing pipe 9 and the flushing water pipe 10. The emergency water replenishing pipe 8 is communicated with the water supply pipe 6, and the automatic water replenishing pipe 9 and the flushing water pipe 10 are respectively communicated with the desulfurization waste water pipe 7. Automatic moisturizing, sediment storehouse sparge water and chain sparge water all adopt desulfurization waste water, and the sediment water is basicity because the material characteristic of sediment at the bottom of the boiler in the dragveyer casing, adopts desulfurization waste water to carry out the moisturizing, can make the sediment water become neutral with basicity sediment water, reduces the corruption to scraper blade dragveyer. The lower part of the scraper slag dragging machine 3 is provided with a water discharge pipe 11 and an overflow water pipe 12, the lower part of the secondary scraper conveyor 4 is provided with the water discharge pipe 11, and the water discharge pipe 11 and the overflow water pipe 12 are communicated with an overhaul pool 13 through pipelines. The water discharge pipe 11 and the overflow water pipe 12 are respectively provided with a valve. The overhaul pool 13 is communicated with the desulfurization wastewater pipe 7 through a pipeline, and a water pump is arranged on the pipeline. The maintenance pond receives a small amount of overflow water of dragveyer, can return dragveyer moisturizing and sediment storehouse, chain sparge water with the overflow water of retrieving through the water pump, and entire system can not arrange desulfurization waste water outward, reduces environmental pollution.
The invention does not have an external water circulation system, only an automatic water replenishing pipe and an emergency water replenishing pipe are arranged on the slag conveyor to replenish the evaporation loss of water in the slag conveyor and the water taken away by slag, and the tank body achieves dynamic heat balance: the method has the advantages that the water in the tank body is evaporated and absorbed, the water in the tank body is supplemented and absorbed, the heat emitted to the atmosphere is = the heat brought by the slag and the heat brought by the boiler radiation, so that the water temperature of the tank body of the slag conveyor is kept at 70 ℃, a water circulating system is not required to be arranged outside, and the water resource saving is facilitated.
Claims (9)
1. The utility model provides a novel wet-type deslagging system, is including setting up in slag shaft (1) of boiler below and setting up in scraper blade dragveyer (3) of slag shaft (1) below, scraper blade dragveyer (3) set gradually the horizontal segment along direction of delivery and with the horizontal segment be the inclined rising section that certain angle slope set up, its characterized in that: the rear of the scraper slag conveyor (3) is provided with a secondary scraper conveyor (4) which conveys coal slag to a slag bin (5), and the secondary scraper conveyor (4) comprises a horizontal conveying section and an inclined lifting conveying section which is connected with the horizontal conveying section and is obliquely arranged at a certain angle, and the inclined lifting section of the scraper slag conveyor (3) is connected with the horizontal conveying section of the secondary scraper conveyor (4) through a tee joint.
2. The novel wet slag removal system of claim 1, wherein: the device is characterized in that an emergency water replenishing pipe (8), an automatic water replenishing pipe (9) and a flushing water pipe (10) are arranged above the scraper slag conveyor (3), the emergency water replenishing pipe (8) is communicated with the water supply pipe (6), and the automatic water replenishing pipe (9) and the flushing water pipe (10) are respectively communicated with the desulfurization waste water pipe (7).
3. The novel wet slag removal system of claim 2, wherein: valves are respectively arranged on the emergency water replenishing pipe (8), the automatic water replenishing pipe (9) and the flushing water pipe (10).
4. The novel wet slag removal system of claim 2, wherein: the scraper slag conveyor (3) is not provided with an external water circulation system, and the water temperature of the tank body is kept at 70 ℃.
5. The novel wet slag removal system of claim 1, wherein: and the scraper slag conveyor (3) is also provided with a thermal resistance temperature sensor, a radar liquid level meter and a liquid level switch.
6. The novel wet slag removal system of claim 2, wherein: the lower part of the scraper slag dragging machine (3) is provided with a water drain pipe (11) and an overflow water pipe (12), the lower part of the secondary scraper conveyor (4) is provided with the water drain pipe (11), and the water drain pipe (11) and the overflow water pipe (12) are communicated with an overhaul pool (13) through pipelines.
7. The novel wet slag removal system of claim 6, wherein: valves are respectively arranged on the water discharge pipe (11) and the overflow water pipe (12).
8. The novel wet slag removal system of claim 6, wherein: the overhaul pool (13) is communicated with the desulfurization waste water pipe (7) through a pipeline, and a water pump is arranged on the pipeline.
9. The novel wet slag removal system of claim 1, wherein: and a slag outlet of the slag well (1) is provided with a water seal inserting plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010590246.4A CN111911944A (en) | 2020-06-24 | 2020-06-24 | Novel wet-type deslagging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010590246.4A CN111911944A (en) | 2020-06-24 | 2020-06-24 | Novel wet-type deslagging system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111911944A true CN111911944A (en) | 2020-11-10 |
Family
ID=73227944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010590246.4A Pending CN111911944A (en) | 2020-06-24 | 2020-06-24 | Novel wet-type deslagging system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111911944A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202442346U (en) * | 2012-02-08 | 2012-09-19 | 青岛达能环保设备有限公司 | Slag removing device using vibrating feeder as transition equipment |
| CN102809164A (en) * | 2012-08-03 | 2012-12-05 | 中国电力工程顾问集团西北电力设计院 | Slag water self-balancing heat exchange method of water-cooled mechanical slag-removal system in thermal power plant |
| CN103615731A (en) * | 2013-10-29 | 2014-03-05 | 青岛德施普机械工业有限公司 | Pulverized coal furnace slag removing system |
| US20150192294A1 (en) * | 2010-03-22 | 2015-07-09 | Clyde Bergemann Power Group Americas Inc. | Methods and Systems For Dewatering Bottom Ash Using A Remote Submerged Scraper Conveyor |
| CN107089690A (en) * | 2017-06-06 | 2017-08-25 | 大唐贵州发耳发电有限公司 | A kind of desulfurization wastewater recycle device |
| CN206940455U (en) * | 2017-06-06 | 2018-01-30 | 大唐贵州发耳发电有限公司 | A kind of desulfurization wastewater retracting device |
| CN108954356A (en) * | 2018-06-25 | 2018-12-07 | 中国神华能源股份有限公司 | Dragveyer |
| CN110002661A (en) * | 2019-04-28 | 2019-07-12 | 国电龙源电力技术工程有限责任公司 | Method for treating desulfurized wastewater and utilization wet slag removal evaporation disposition desulfurization wastewater device |
-
2020
- 2020-06-24 CN CN202010590246.4A patent/CN111911944A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150192294A1 (en) * | 2010-03-22 | 2015-07-09 | Clyde Bergemann Power Group Americas Inc. | Methods and Systems For Dewatering Bottom Ash Using A Remote Submerged Scraper Conveyor |
| CN202442346U (en) * | 2012-02-08 | 2012-09-19 | 青岛达能环保设备有限公司 | Slag removing device using vibrating feeder as transition equipment |
| CN102809164A (en) * | 2012-08-03 | 2012-12-05 | 中国电力工程顾问集团西北电力设计院 | Slag water self-balancing heat exchange method of water-cooled mechanical slag-removal system in thermal power plant |
| CN103615731A (en) * | 2013-10-29 | 2014-03-05 | 青岛德施普机械工业有限公司 | Pulverized coal furnace slag removing system |
| CN107089690A (en) * | 2017-06-06 | 2017-08-25 | 大唐贵州发耳发电有限公司 | A kind of desulfurization wastewater recycle device |
| CN206940455U (en) * | 2017-06-06 | 2018-01-30 | 大唐贵州发耳发电有限公司 | A kind of desulfurization wastewater retracting device |
| CN108954356A (en) * | 2018-06-25 | 2018-12-07 | 中国神华能源股份有限公司 | Dragveyer |
| CN110002661A (en) * | 2019-04-28 | 2019-07-12 | 国电龙源电力技术工程有限责任公司 | Method for treating desulfurized wastewater and utilization wet slag removal evaporation disposition desulfurization wastewater device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203099859U (en) | Wet-type slag removing system for coal-powder boiler | |
| CN202709143U (en) | Water-cooled mechanical deslagging system for thermal power plant | |
| CN201817499U (en) | Water processing system for blast-furnace slag granulation | |
| CN102809164A (en) | Slag water self-balancing heat exchange method of water-cooled mechanical slag-removal system in thermal power plant | |
| CN111911944A (en) | Novel wet-type deslagging system | |
| CN103615731A (en) | Pulverized coal furnace slag removing system | |
| CN201321389Y (en) | Sewage evaporation and utilization system under furfural production tower | |
| CN102322628A (en) | Periodic-blowdown drainage heat recovery system of boiler | |
| CN208124329U (en) | A kind of zero overflow system of thermal power plant's slag removing system pulp water | |
| CN214891305U (en) | High-temperature fly ash waste heat recovery device | |
| CN206203283U (en) | Spiral ash hoist | |
| CN202630706U (en) | Yellow phosphorus electric furnace smelting furnace slag waste heat recovery device | |
| CN212157215U (en) | Water logging formula scraper blade dragveyer system of waste water zero release | |
| CN2900526Y (en) | Water storage and supply device for wet quenching coke pump system | |
| CN216281621U (en) | Boiler sewage is retrieved and is utilized in urban resident heating system's moisturizing device | |
| CN210568381U (en) | Novel ash conveying and waste heat recovery device for biomass circulating fluidized bed boiler separator | |
| CN202139501U (en) | Circulating cooling device of alkali recycling furnace chute | |
| CN202511300U (en) | Dry type air cooling net belt slag remover | |
| CN202705079U (en) | Closed waterpower pneumatic residue discharging device with air floatation tank | |
| CN217604067U (en) | System for utilize steam power plant boiler sewage as desulfurization water | |
| CN218763337U (en) | Power plant boiler blow-off water and waste heat recovery system thereof | |
| CN218688114U (en) | Zero-hydrophobicity semi-dry desulfurization system | |
| CN201575304U (en) | Water cyclical utilization device for coal gas standpipe water seal | |
| CN219907732U (en) | Circulating water cooling and recovering device under accident state of blast furnace gear box | |
| CN219797238U (en) | Slag water circulation pipeline of slag dragging machine at bottom of furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201110 |