CN107983110A - A kind of denitrating system urea feeding device - Google Patents
A kind of denitrating system urea feeding device Download PDFInfo
- Publication number
- CN107983110A CN107983110A CN201711493874.5A CN201711493874A CN107983110A CN 107983110 A CN107983110 A CN 107983110A CN 201711493874 A CN201711493874 A CN 201711493874A CN 107983110 A CN107983110 A CN 107983110A
- Authority
- CN
- China
- Prior art keywords
- pneumatic
- bucket elevator
- urea
- elephant trunk
- way valve
- 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
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 239000004202 carbamide Substances 0.000 title claims abstract description 51
- 241000406668 Loxodonta cyclotis Species 0.000 claims abstract description 31
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 239000010813 municipal solid waste Substances 0.000 abstract description 4
- 239000008187 granular material Substances 0.000 description 10
- 239000007789 gas Substances 0.000 description 4
- 239000013078 crystal Substances 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 241000219122 Cucurbita Species 0.000 description 1
- 235000009852 Cucurbita pepo Nutrition 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/56—Nitrogen oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/56—Nitrogen oxides
- B01D53/565—Nitrogen oxides by treating the gases with solids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/81—Solid phase processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
- B01D2251/2067—Urea
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/404—Nitrogen oxides other than dinitrogen oxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
- B01D2258/0291—Flue gases from waste incineration plants
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The present invention relates to field of household garbage incineration, is a kind of denitrating system urea feeding device, is made of bucket elevator, Pneumatic three-way valve, elephant trunk, pneumatic gate valve, air accumulator, filter, freeze drier, pneumatic baffle, bucket elevator access path；The bucket elevator is arranged on by urea tank, the Pneumatic three-way valve is arranged on bucket elevator outlet, the elephant trunk is arranged on Pneumatic three-way valve outlet, above urea tank, the pneumatic gate valve is arranged on elephant trunk end, the air accumulator, filter, freeze drier, pneumatic baffle are arranged on compressed air line, and the bucket elevator access path is arranged on below bucket elevator.The present invention realizes the convenient and efficient of urea feeding, time saving and energy saving.
Description
Technical field
The present invention relates to field of household garbage incineration, especially a kind of denitrating system urea feeding device.
Background technology
The NOx emission standard of Some Domestic garbage burning factory reaches 2000 standard limit of smog release of European Union, with flue gas emission
The continuous improvement of standard, realizes that minimum discharge zero-emission has become the trend of waste incineration and generating electricity industry development, therefore, rubbish is burnt
Factory is burnt for denitrification reducing agent（Urea）Demand be also constantly to be lifted, and urea feeding becomes a great problem.
At present, the major way of urea feeding is electric gourd hang or vacuum feeder, but is taken using electric block feeding,
Time and manpower are not only expended, but also realizes that automation runs in the opposite direction with denitrating system；And vacuum feeder is used, pipeline is easy
Block, equipment failure rate is high, therefore, it is imperative to develop suitable denitrating system urea feeding device.
The content of the invention
The purpose of the present invention is overcoming above-mentioned the deficiencies in the prior art, a kind of denitrating system urea feeding device is proposed.It is
By denitrification reducing agent（Urea）Urea tank is added, urea is delivered to above urea tank by bucket elevator, then will be urinated by elephant trunk
Element is added to urea tank.
Concrete technical scheme of the present invention is：A kind of denitrating system urea feeding device, by bucket elevator, Pneumatic three-way valve, is slipped
Pipe, pneumatic gate valve, air accumulator, filter, freeze drier, pneumatic baffle, bucket elevator access path are formed；The bucket elevator
It is arranged on by urea tank, the Pneumatic three-way valve is arranged on bucket elevator outlet, and the elephant trunk is arranged on Pneumatic three-way valve outlet, urinates
Above plain tank, the pneumatic gate valve is arranged on elephant trunk end, the air accumulator, filter, freeze drier, and pneumatic baffle is set
Put in compressed air line, the bucket elevator access path is arranged on below bucket elevator.
The present invention operation principle be：Urea granules are delivered to above urea tank by bucket elevator, then pass through Pneumatic three-way
Valve and elephant trunk add urea granules to urea tank, complete the feeding of urea granules, elephant trunk end set pneumatic gate valve and
Compressed air inlet, prevents that moisture enters elephant trunk in tank, causes urea crystals in elephant trunk.Gas storage is set on compressed air line
Tank is set the impurity in filter filtering compressed air, is set freeze drier to remove compression empty with constant compression air pressure
Moisture in gas.
Brief description of the drawings
Fig. 1 is the denitrating system urea feeding device structure diagram of the present invention.
In figure：1- bucket elevators, 2- Pneumatic three-way valves, 3- elephant trunks, 4- pneumatic gate valves, 5- air accumulators, 6- filters, 7- are cold
Lyophilizer, 8- pneumatic baffles, 9- bucket elevator access paths.
Embodiment
As shown in Figure 1, the denitrating system urea feeding device structure diagram of the present invention, by bucket elevator 1, Pneumatic three-way valve
2, elephant trunk 3, pneumatic gate valve 4, air accumulator 5, filter 6, freeze drier 7, pneumatic baffle 8,9 structure of bucket elevator access path
Into.Bucket elevator is buried setting, and ground divides into access path to overhaul, about 2 meters deep；Pneumatic three-way valve is arranged on bucket elevator and goes out
Mouthful, two urea tanks while charging or single charging can be realized by control；Elephant trunk is arranged on Pneumatic three-way valve outlet, and material is
PTFE, prevents urea granules from gluing wall；Elephant trunk end sets pneumatic gate valve, after charging, closes pneumatic gate valve, prevents tank
Interior moisture enters elephant trunk；Elephant trunk end pneumatic gate valve upper end set compressed air inlet port, every time charging after, in elephant trunk into
Row purging；Air accumulator is arranged on compressed air line, constant compression air pressure；Filter is arranged on pipeline before and after air accumulator,
To the impurity in filtering compressed air；Freeze drier is arranged on air accumulator front end pipeline, to drying compressed air；Pneumatically
Baffle plate setting is in compressed air outlet pipeline, to control the keying of purging wind.
Bucket elevator described in the invention described above, Pneumatic three-way valve, elephant trunk, pneumatic gate valve, air accumulator, filter are cold
Lyophilizer, pneumatic baffle, bucket elevator access path are formed using existing part, these parts belong to known technology, related
Above-mentioned part, those skilled in the art understand, and details are not described herein.
The present invention operation principle be：Urea granules are delivered to above urea tank by bucket elevator, then pass through Pneumatic three-way
Valve and elephant trunk add urea granules to urea tank, complete the feeding of urea granules, elephant trunk end set pneumatic gate valve and
Compressed air inlet, prevents that moisture enters elephant trunk in tank, causes urea crystals in elephant trunk.Gas storage is set on compressed air line
Tank is set the impurity in filter filtering compressed air, is set freeze drier to remove compression empty with constant compression air pressure
Moisture in gas.
The present invention the course of work be：
1. jumbo bag urea is transported to bucket elevator hopper with fork truck, urea is delivered to above urea tank by bucket elevator 1.
2. urea enters one or two elephant trunks 3 by Pneumatic three-way valve 2.
3. opening pneumatic gate valve 4, urea granules enter urea tank, after the completion of discharging, close pneumatic gate valve 4, beat
Open pneumatic baffle 8, compressed air is by filter 6, air accumulator 5, is purged after freeze drier 7 into elephant trunk.
Used when 4. bucket elevator maintenance logical 9 is to overhaul bucket elevator.
To sum up, urea granules are delivered to above urea tank by bucket elevator, then by Pneumatic three-way valve and elephant trunk by urea
Particle is added to urea tank, completes the feeding of urea granules, is set pneumatic gate valve and compressed air inlet in elephant trunk end, is prevented
Only moisture enters elephant trunk in tank, causes urea crystals in elephant trunk, realizes the convenient and efficient of urea feeding, time saving and energy saving.
Claims (1)
1. a kind of denitrating system urea feeding device, it is characterised in that be by bucket elevator, Pneumatic three-way valve, elephant trunk, pneumatic plate
Valve, air accumulator, filter, freeze drier, pneumatic baffle, bucket elevator access path are formed；The bucket elevator is arranged on urea
By tank, the Pneumatic three-way valve is arranged on bucket elevator outlet, and the elephant trunk is arranged on Pneumatic three-way valve outlet, above urea tank,
The pneumatic gate valve is arranged on elephant trunk end, the air accumulator, filter, freeze drier, and pneumatic baffle is arranged on compression
Air pipe line, the bucket elevator access path are arranged on below bucket elevator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711493874.5A CN107983110A (en) | 2017-12-31 | 2017-12-31 | A kind of denitrating system urea feeding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711493874.5A CN107983110A (en) | 2017-12-31 | 2017-12-31 | A kind of denitrating system urea feeding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107983110A true CN107983110A (en) | 2018-05-04 |
Family
ID=62040621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711493874.5A Pending CN107983110A (en) | 2017-12-31 | 2017-12-31 | A kind of denitrating system urea feeding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107983110A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103301747A (en) * | 2013-06-07 | 2013-09-18 | 大连贝斯特环境工程设备有限公司 | SCR (Selective Catalytic Reduction) flue gas denitration device for urea pyrolysis |
| CN203690847U (en) * | 2013-11-15 | 2014-07-02 | 重庆大唐国际彭水水电开发有限公司 | Anti-condensation device for long vertical enclosed busbar with heavy current |
| CN204563949U (en) * | 2015-03-10 | 2015-08-19 | 南阳长弓机械科技有限公司 | Denitrating flue gas urea strength feeding device |
| CN206051029U (en) * | 2016-08-25 | 2017-03-29 | 中煤鄂尔多斯能源化工有限公司 | A kind of carbamide bulk system |
| CN207856645U (en) * | 2017-12-31 | 2018-09-14 | 上海康恒环境股份有限公司 | A kind of denitrating system urea feeding device |
-
2017
- 2017-12-31 CN CN201711493874.5A patent/CN107983110A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103301747A (en) * | 2013-06-07 | 2013-09-18 | 大连贝斯特环境工程设备有限公司 | SCR (Selective Catalytic Reduction) flue gas denitration device for urea pyrolysis |
| CN203690847U (en) * | 2013-11-15 | 2014-07-02 | 重庆大唐国际彭水水电开发有限公司 | Anti-condensation device for long vertical enclosed busbar with heavy current |
| CN204563949U (en) * | 2015-03-10 | 2015-08-19 | 南阳长弓机械科技有限公司 | Denitrating flue gas urea strength feeding device |
| CN206051029U (en) * | 2016-08-25 | 2017-03-29 | 中煤鄂尔多斯能源化工有限公司 | A kind of carbamide bulk system |
| CN207856645U (en) * | 2017-12-31 | 2018-09-14 | 上海康恒环境股份有限公司 | A kind of denitrating system urea feeding device |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180504 |
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| WD01 | Invention patent application deemed withdrawn after publication |