CN203672121U - Mesh belt kiln calcinator - Google Patents
Mesh belt kiln calcinator Download PDFInfo
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- CN203672121U CN203672121U CN201320795460.9U CN201320795460U CN203672121U CN 203672121 U CN203672121 U CN 203672121U CN 201320795460 U CN201320795460 U CN 201320795460U CN 203672121 U CN203672121 U CN 203672121U
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- heater
- mesh
- calcining furnace
- belt kiln
- platform
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Abstract
A mesh belt kiln calcinator comprises a calcinator body, a conveying device and a heating device. The conveying device comprises a feeding platform, a conveying platform, a discharging platform and a mesh belt, wherein the mesh belt operates on the feeding platform, the conveying platform and the discharging platform in a rotation mode. Automatic correction devices are arranged on the two sides of the mesh belt and comprise guide wheels. Due to the limiting effect of the guide wheels, the mesh belt can not be deviated in the operation process.
Description
Technical field
The utility model relates to a kind of calciner plant, is specifically related to a kind of mesh-belt kiln 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.
Existing honeycomb fashion SCR denitrating catalyst technology is mainly from external introduction, and 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.
Meanwhile, 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.And can give off a large amount of NH when this product calcining
3, SO
3deng corrosive gas and compound hydrogen sulfate ammonia thereof, after calcining also easily because of cooling too fast cracking.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.
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.
Summary of the invention
The utility model provides a kind of mesh-belt kiln calcining furnace.This mesh-belt kiln calcining furnace can be corrected the deviation in guipure running automatically, can reduce or avoid the cracking situation of product in calcination process simultaneously, and economy and durability, and high insulating effect is saved energy consumption, environmental protection.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions: mesh-belt kiln calcining furnace, comprise body of heater, conveyer, heater, described conveyer comprises feeding platform, delivery platform, discharging platform, described conveyer is also included in the guipure of described feeding platform, delivery platform, the operation of discharging platform upper rotary, described guipure both sides are provided with automatic deviation rectifying device, and described automatic deviation rectifying device comprises directive wheel.The restriction of described directive wheel, can make described guipure can not be partial in running.
As preferably, described heater is the Far-infrared quartz heating tube being arranged in body of heater.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.
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 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, described body of heater end is provided with cooled region, and described cooled region is provided with heat exchanger tube, described heat exchanger tube with take out air-heater and be connected.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 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.Temperature controller also can be taken out according to this Signal Regulation the power of air-heater, adjusts rate of temperature fall.
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 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, improved operating efficiency.
2. the utility model adopts Far-infrared quartz heating tube heating, and resistance wire heater element is arranged on quartz ampoule inside, extends resistance wire service life.
3. 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.
4. 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.
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: referring to accompanying drawing, mesh-belt kiln 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 guipure 31 both sides are provided with automatic deviation rectifying device, described automatic deviation rectifying device comprises directive wheel 32, described heater is the Far-infrared quartz heating tube 6 being arranged in body of heater 1, heater element in described Far-infrared quartz heating tube 6 is resistance wire, described body of heater 1 inner side is provided with insulation material, described insulation material is full fiber folded piece 7, 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.In present embodiment, described body of heater 1 length is 47 meters, 0.9 meter of described body of heater 1 inner width, 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, be 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.
The another kind of specific embodiment of the present utility model: mesh-belt kiln 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 guipure 31 both sides are provided with automatic deviation rectifying device, described automatic deviation rectifying device comprises directive wheel 32, described heater is the Far-infrared quartz heating tube 6 being arranged in body of heater 1, heater element in described Far-infrared quartz heating tube 6 is resistance wire, described body of heater 1 inner side is provided with insulation material, described insulation material is full fiber folded piece 7, 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.In present embodiment, described body of heater 1 length is 58 meters, 1.8 meters of described body of heater 1 inner widths, 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, be 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 (8)
1. mesh-belt kiln 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 the guipure (31) of described feeding platform (2), delivery platform (4), the operation of discharging platform (3) upper rotary, it is characterized in that, described guipure (31) both sides are provided with automatic deviation rectifying device, and described automatic deviation rectifying device comprises directive wheel (32).
2. mesh-belt kiln calcining furnace according to claim 1, is characterized in that, described heater is for being arranged at the Far-infrared quartz heating tube (6) in body of heater (1).
3. mesh-belt kiln 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. according to the mesh-belt kiln calcining furnace described in claims 1 to 3 any one, it 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).
5. mesh-belt kiln calcining furnace according to claim 4, is characterized in that, described body of heater (1) end is provided with cooled region, and described cooled region is provided with heat exchanger tube (5), described heat exchanger tube (5) with take out air-heater (8) and be connected.
6. according to the mesh-belt kiln calcining furnace described in claim 2 or 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.
7. mesh-belt kiln calcining furnace according to claim 6, 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).
8. mesh-belt kiln calcining furnace according to claim 7, 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 |
|---|---|---|---|
| CN201320795460.9U CN203672121U (en) | 2013-12-06 | 2013-12-06 | Mesh belt kiln calcinator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320795460.9U CN203672121U (en) | 2013-12-06 | 2013-12-06 | Mesh belt kiln calcinator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203672121U true CN203672121U (en) | 2014-06-25 |
Family
ID=50968407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320795460.9U Expired - Fee Related CN203672121U (en) | 2013-12-06 | 2013-12-06 | Mesh belt kiln calcinator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203672121U (en) |
-
2013
- 2013-12-06 CN CN201320795460.9U patent/CN203672121U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 Termination date: 20171206 |