CN203657452U - Cellular SCR denitration catalyst calcining furnace - Google Patents
Cellular SCR denitration catalyst calcining furnace Download PDFInfo
- Publication number
- CN203657452U CN203657452U CN201320795341.3U CN201320795341U CN203657452U CN 203657452 U CN203657452 U CN 203657452U CN 201320795341 U CN201320795341 U CN 201320795341U CN 203657452 U CN203657452 U CN 203657452U
- Authority
- CN
- China
- Prior art keywords
- heater
- calcining furnace
- platform
- denitrating catalyst
- honeycomb fashion
- 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.)
- Expired - Fee Related
Links
Images
Abstract
A cellular SCR denitration catalyst calcining furnace comprises a furnace body, a conveying device and a heating device. The conveying device comprises a feeding platform, a conveying platform and a discharging platform. The conveying device further comprises a mesh belt which operates on the feeding platform, the conveying platform and the discharging platform in a circumgyration mode. The heating device is a far-infrared quartz heating tube arranged in the furnace body. A cooling area is arranged at the tail end of the furnace body and provided with a heat exchange tube. The heat exchange tube is connected with a hot air pumping machine. Automatic deviation correction devices are arranged on the two sides of the mesh belt and comprise guide wheels. The cellular SCR denitration catalyst calcining furnace is economical, durable, good in heat preservation effect, high in automation degree and capable of lowering energy consumption and allowing product quality to be high.
Description
Technical field
The utility model relates to a kind of calciner plant, is specifically related to a kind of calcining furnace for the production of honeycomb fashion SCR denitrating catalyst.
Background technology
Due to mankind's activity and economic fast development, China's environment is seriously damaged, and extreme climate showed increased causes serious threat to people's life and property, causes heavy losses to country, has hindered the sustainable development of national economy simultaneously.Country has also paid huge cost in order to administer environment.
The current discharged nitrous oxides total amount of China has exceeded 1,800 ten thousand tons, if do not take effective control measure, 5 years Chinese nitrogen oxide emissions of Future Ten will continue to increase, and may reach more than 3,000 ten thousand tons to the year two thousand twenty.China is coal-fired big country, and coal-burning power plant is the primary emission source of nitrogen oxide, accounts for 40% of total amount, will become the first batch of control object of country.
Honeycomb ceramics SCR denitrating catalyst Main Function is by the NO in discharging waste gas
xconvert nitrogen and steam to, to reach environmental emission standard.
SCR device is mainly made up of two large main bodys: remove agent preparation system and reactor body.By spray into reactant NH in reactor
3, NOx is reduced to nitrogen.Because this reduction reaction is comparatively responsive to temperature, therefore need add catalyst with intensified response activity, meet the temperature requirement of reaction.
Honeycomb fashion SCR denitrating catalyst main component generally comprises nano-TiO
2, V
2o
5and WO
3.These three kinds of shared catalyst ratios of composition exceed 95 ﹪, and TiO
2proportion is generally 80%～85%.In order to meet production technology needs, guarantee easy extrusion modling, also needing in addition to increase the mixture additives such as some viscose glues and glass fibre increases pug intensity and mobility, adjusts its physical property.Due to these compositions stir mixing rear mobility and plasticity poor, moulding difficulty is larger.Again because the water holding capacity of product is poor, atmospheric crack very easily after moulding is therefore also higher to the production engineering specifications of dry kiln.During simultaneously due to this product calcining, can give off a large amount of NH
3, SO
3deng corrosive gas and compound hydrogen sulfate ammonia thereof, after calcining also easily because of cooling too fast cracking.
Therefore, this production requires also higher to calcining furnace.If the production technology assurance to this product is bad, may there is failed situation in dry kiln and calcining kiln.
Because existing honeycomb fashion SCR denitrating catalyst technology is mainly from external introduction, calcining furnace equipment is main Introduced From Abroad tradition calcining furnace also, as Japan and U.S.'s electrical heating guipure kiln calcining furnace, German combustion gas shuttle kiln calcining furnace.These mesh-belt kiln calcining furnaces mainly adopt electric power as heating source, heater element is traditional resistor silk, the erosion of corrosivity resistance when these resistance wires are easily received calcining, be not durable, insulation material is light fire brick, and being mainly manifested in electrical heating is that electric energy energy transform into heat energy efficiency is lower by radiant heat transfer, and heat insulation effect is poor, fuel cost is high.Not only equipment price is higher, and energy consumption is also larger simultaneously, does not meet current energy-conserving and environment-protective Developing mainstream.Combustion gas shuttle kiln calcining furnace mainly adopts heated by natural gas, and due to service intermittent characteristic, production stability is not high, hand labor intensity is large, also can take away amount of heat in combustion gas, and energy consumption is higher, and also automatic continuous production is carried out in inconvenience simultaneously.
In addition, mesh-belt kiln calcining furnace is provided with the guipure that transports idiosome, and deviation easily appears in this guipure in the process of transporting, and causes transporting and cannot complete, and needs break-off to correct guipure.
Summary of the invention
The utility model provides a kind of honeycomb fashion SCR denitrating catalyst calcining furnace.This calcining furnace economy and durability, high insulating effect, saves energy consumption, and product quality is high, and automaticity is high.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions: a kind of honeycomb fashion SCR denitrating catalyst calcining furnace, comprise body of heater, conveyer, heater, described conveyer comprises feeding platform, delivery platform, discharging platform, described conveyer is also included in described feeding platform, delivery platform, the guipure of discharging platform upper rotary operation, described heater is the Far-infrared quartz heating tube being arranged in body of heater, described body of heater end is provided with cooled region, described cooled region is provided with heat exchanger tube, described heat exchanger tube with take out air-heater and be connected, described guipure both sides are provided with automatic deviation rectifying device, described automatic deviation rectifying device comprises directive wheel.Due in calcination process, honeycomb fashion SCR denitrating catalyst idiosome can give off a large amount of NH
3, SO
3deng corrosive gas, traditional resistance wire is exposed in these gases and can be corroded, and affects service life, and Far-infrared quartz heating tube can be by these gas attacks, very durable.Meanwhile, the restriction of described directive wheel, can make described guipure can not be partial in running.The described air-heater of taking out is extracted air in described cooled region out via heat exchanger tube, make this section of temperature slow decreasing, and the honeycomb fashion SCR denitrating catalyst base substrate that makes high temperature can not cause temperature decrease in air and causes product cracking because of being directly exposed to suddenly.
As preferably, described furnace body inside is provided with insulation material, and described insulation material is full fiber folded piece.Adopt full fiber folded piece to make liner and can reduce accumulation of heat, improve programming rate, strengthen heat insulation effect, energy-saving and cost-reducing.
As preferably, the heater element in described Far-infrared quartz heating tube is resistance wire.Resistance wire is placed in and in Far-infrared quartz heating tube, has avoided contacting of resistance wire and corrosive gas.
As preferably, described body of heater length is 47 ~ 58 meters, 0.9 ~ 1.8 meter of described body of heater inner width, and the quantity of described Far-infrared quartz heating tube is 117 ~ 234.Furnace profile is wide, and useful load is large, can further expand the scale of production.
As preferably, described Far-infrared quartz heating tube is connected with temperature controller, is also provided with Temperature Detector in described body of heater.Temperature Detector can be collected temperature signal, and temperature controller can be according to the voltage of resistance wire in this Signal Regulation Far-infrared quartz heating tube, and then changes firing rate.
As preferably, described Far-infrared quartz heating tube is divided into 12 ~ 15 groups and is connected with temperature controller respectively, and the quantity of described Temperature Detector is 9 ~ 12.Temperature controller divides 12～15 groups to carry out temperature and automatically control, and the firing temperature curve of product is more level and smooth, and temperature control is more stable, improves the product quality of honeycomb fashion SCR denitrating catalyst.
Compared with prior art, the utlity model has following beneficial effect: 1. the utility model adopts Far-infrared quartz heating tube heating, and resistance wire heater element is arranged on quartz ampoule inside, extend resistance wire service life.
2. the utility model is provided with the directive wheel that plays automatic deviation rectifying function in guipure both sides, can make described guipure can not be partial in running, has improved operating efficiency.
3. the utility model adopts the indirect type of cooling to carry out Slow cooling to product, guarantees that product is not easy to crack, improves the product quality of honeycomb fashion SCR denitrating catalyst.
4. the utility model adopts full fiber folded piece to reduce accumulation of heat as liner, improves programming rate, strengthens heat insulation effect, energy-saving and cost-reducing.
5. the utility model adopts controllable silicon to divide 12～15 groups to carry out temperature and automatically control, and the firing temperature curve of product is more level and smooth, and temperature control is more stable, improves the product quality of honeycomb fashion SCR denitrating catalyst.
6. burner hearth of the furnace body section of the present utility model is wide, and useful load is large, has expanded production specification scale.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model.
Fig. 2 is the schematic diagram of body of heater inside in the utility model.
Fig. 3 is the schematic diagram of discharging platform in the utility model.
The specific embodiment
Below in conjunction with accompanying drawing and the specific embodiment, the utility model is described in further detail: see accompanying drawing, a kind of honeycomb fashion SCR denitrating catalyst calcining furnace, comprise body of heater 1, conveyer, heater, described conveyer comprises feeding platform 2, delivery platform 4, discharging platform 3, described conveyer is also included in described feeding platform 2, delivery platform 4, the guipure 31 of discharging platform 3 upper rotary operations, described heater is the Far-infrared quartz heating tube 6 being arranged in body of heater 1, described body of heater 1 end is provided with cooled region, described cooled region is provided with heat exchanger tube 5, described heat exchanger tube 5 with take out air-heater 8 and be connected, described guipure 31 both sides are provided with automatic deviation rectifying device, described automatic deviation rectifying device comprises directive wheel 32.Described body of heater 1 inner side is provided with insulation material, and described insulation material is full fiber folded piece 7.Heater element in described Far-infrared quartz heating tube 6 is resistance wire.In present embodiment, described body of heater 1 length is 47 meters, 0.9 meter of described body of heater 1 inner width, and the quantity of described Far-infrared quartz heating tube 6 is 117.Described Far-infrared quartz heating tube 6 is connected with temperature controller, in described body of heater 1, is also provided with Temperature Detector.Described Far-infrared quartz heating tube 6 is divided into 12 groups and is connected with temperature controller respectively, and the quantity of described Temperature Detector is 9.
Another kind of embodiment of the present utility model is: a kind of honeycomb fashion SCR denitrating catalyst calcining furnace, comprise body of heater 1, conveyer, heater, described conveyer comprises feeding platform 2, delivery platform 4, discharging platform 3, described conveyer is also included in described feeding platform 2, delivery platform 4, the guipure 31 of discharging platform 3 upper rotary operations, described heater is the Far-infrared quartz heating tube 6 being arranged in body of heater 1, described body of heater 1 end is provided with cooled region, described cooled region is provided with heat exchanger tube 5, described heat exchanger tube 5 with take out air-heater 8 and be connected, described guipure 31 both sides are provided with automatic deviation rectifying device, described automatic deviation rectifying device comprises directive wheel 32.Described body of heater 1 inner side is provided with insulation material, and described insulation material is full fiber folded piece 7.Heater element in described Far-infrared quartz heating tube 6 is resistance wire.In present embodiment, described body of heater 1 length is 58 meters, 1.8 meters of described body of heater 1 inner widths, and the quantity of described Far-infrared quartz heating tube 6 is 234.Described Far-infrared quartz heating tube 6 is connected with temperature controller, in described body of heater 1, is also provided with Temperature Detector.Described Far-infrared quartz heating tube 6 is divided into 15 groups and is connected with temperature controller respectively, and the quantity of described Temperature Detector is 12.
When work, feeding platform 2 is for being longitudinally placed on honeycomb fashion SCR denitrating catalyst base substrate the guipure of feeding platform 2, and product bottom is lined with asbestos fibre, and product is automatically entered in honeycomb fashion SCR denitrating catalyst calcining furnace and carried out sintering by guipure.Feeding platform 2 is made up of frame, passive swift, tensioner cylinder, upper supporting roller and snub pulley.Discharging platform 3 for by cooled product discharge to discharging platform 3.Discharging platform 3 is by frame, active encapsulate swift, tensioner cylinder, guide pulley, transmission variable-frequency motor, gearbox, upper supporting roller, snub pulley, limit alarm device and speed measuring device.Transmission variable-frequency motor, gearbox and initiatively encapsulate swift employing double strand chain transmission.In guipure 31 runnings, guipure both sides are directed to wheel 32 and limit, and guipure 31 can not be offset.
Honeycomb fashion SCR denitrating catalyst base substrate enters after body of heater 1, can pass through with the next stage: for honeycomb fashion SCR denitrating catalyst base substrate being heated to the intensification section I of 180～210 ℃; Be used for honeycomb fashion SCR denitrating catalyst base substrate 180～210 ℃ of section of burning till of burning till I; For honeycomb fashion SCR denitrating catalyst base substrate is rapidly heated to the intensification section II of 485～620 ℃; Be used for honeycomb fashion SCR denitrating catalyst base substrate 485～620 ℃ of section of burning till of burning till II; For the honeycomb fashion SCR denitrating catalyst base substrate after burning till is cooled to the cooling section of 75～40 ℃ indirectly.Wherein, described in cooling section process, taking out air-heater 8 extracts air in described cooled region out via heat exchanger tube 5, make this section of temperature slow decreasing, the honeycomb fashion SCR denitrating catalyst base substrate that makes high temperature can not cause temperature decrease in air and causes product cracking because of being directly exposed to suddenly.
Claims (6)
1. a honeycomb fashion SCR denitrating catalyst calcining furnace, comprise body of heater (1), conveyer, heater, described conveyer comprises feeding platform (2), delivery platform (4), discharging platform (3), described conveyer is also included in described feeding platform (2), delivery platform (4), the guipure (31) of discharging platform (3) upper rotary operation, it is characterized in that, described heater is for being arranged at the Far-infrared quartz heating tube (6) in body of heater (1), described body of heater (1) end is provided with cooled region, described cooled region is provided with heat exchanger tube (5), described heat exchanger tube (5) with take out air-heater (8) and be connected, described guipure (31) both sides are provided with automatic deviation rectifying device, described automatic deviation rectifying device comprises directive wheel (32).
2. a kind of honeycomb fashion SCR denitrating catalyst calcining furnace according to claim 1, is characterized in that, described body of heater (1) inner side is provided with insulation material, and described insulation material is full fiber folded piece (7).
3. a kind of honeycomb fashion SCR denitrating catalyst calcining furnace according to claim 2, is characterized in that, the heater element in described Far-infrared quartz heating tube (6) is resistance wire.
4. a kind of honeycomb fashion SCR denitrating catalyst calcining furnace according to claim 3, it is characterized in that, described body of heater (1) length is 47 ~ 58 meters, 0.9 ~ 1.8 meter of described body of heater (1) inner width, and the quantity of described Far-infrared quartz heating tube (6) is 117 ~ 234.
5. according to a kind of honeycomb fashion SCR denitrating catalyst calcining furnace described in claim 1 ~ 4 any one, it is characterized in that, described Far-infrared quartz heating tube (6) is connected with temperature controller, and described body of heater is also provided with Temperature Detector in (1).
6. a kind of honeycomb fashion SCR denitrating catalyst calcining furnace according to claim 5, is characterized in that, described Far-infrared quartz heating tube (6) is divided into 12 ~ 15 groups and is connected with temperature controller respectively, and the quantity of described Temperature Detector is 9 ~ 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320795341.3U CN203657452U (en) | 2013-12-06 | 2013-12-06 | Cellular SCR denitration catalyst calcining furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320795341.3U CN203657452U (en) | 2013-12-06 | 2013-12-06 | Cellular SCR denitration catalyst calcining furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203657452U true CN203657452U (en) | 2014-06-18 |
Family
ID=50923831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320795341.3U Expired - Fee Related CN203657452U (en) | 2013-12-06 | 2013-12-06 | Cellular SCR denitration catalyst calcining furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203657452U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103673590A (en) * | 2013-12-06 | 2014-03-26 | 湖北大清捷能环保窑炉有限公司 | Honeycomb type SCR denitration catalyst calcining furnace and method for drying SCR denitration catalyst |
-
2013
- 2013-12-06 CN CN201320795341.3U patent/CN203657452U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103673590A (en) * | 2013-12-06 | 2014-03-26 | 湖北大清捷能环保窑炉有限公司 | Honeycomb type SCR denitration catalyst calcining furnace and method for drying SCR denitration catalyst |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103673590A (en) | Honeycomb type SCR denitration catalyst calcining furnace and method for drying SCR denitration catalyst | |
| CN102997654B (en) | Oxygen-enriched combustion domestic ceramic roller kiln waste-heat utilization hot-air preheating system | |
| CN104229855B (en) | Utilize electricity generation boiler or the technique of sintering device flue gas on-line heating oxidation sweetening ash | |
| CN103940221A (en) | Novel energy-saving kiln | |
| CN201093861Y (en) | Double assembling energy saving type industry tunnel kiln | |
| CN104121591B (en) | A kind of efficient energy-saving incinerator | |
| CN102853654A (en) | Air distribution process and air distribution system for rotary kiln | |
| CN103148700A (en) | Energy-saving roller kiln and use method thereof | |
| CN107021652B (en) | A kind of double thorax cocurrent heat accumulating type lime shaft kiln method for calcinating | |
| CN203657453U (en) | Mesh-belt kiln calcinator | |
| CN202532702U (en) | Top combustion hot-blast stove capable of achieving double preheating through mix of high-temperature smoke and low-temperature smoke | |
| CN103241717B (en) | Drying and calcining process and device for coproduction of sulfuric acid and cement from gypsum | |
| CN203144299U (en) | Novel dry-process cement kiln clinker production line employing denitration technology | |
| CN203657452U (en) | Cellular SCR denitration catalyst calcining furnace | |
| CN104501578A (en) | Multistage heat-storage double shaft kiln type calcinator | |
| CN203163478U (en) | Novel energy-saving kiln | |
| CN207998559U (en) | A kind of double bore type lime shaft kilns | |
| CN203672121U (en) | Mesh belt kiln calcinator | |
| CN203190791U (en) | Energy-saving roller kiln | |
| CN211111740U (en) | Double-chamber lime kiln | |
| CN203657451U (en) | Honeycomb type SCR denitration catalyst calcinator | |
| CN209101827U (en) | A kind of rotary kiln residual neat recovering system | |
| CN209263628U (en) | A kind of disperse formula renewable aluminum raw material accumulation of heat smelting furnace | |
| CN203212332U (en) | Drying and calcining device for sulfuric acid and cement production from gypsum | |
| CN203657385U (en) | Secondary drying tunnel kiln for cellular SCR denitration catalyst |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140618 Termination date: 20151206 |
|
| EXPY | Termination of patent right or utility model |