SCR denitration high-efficient roasting equipment
Technical field
The utility model belongs to SCR denitration production field more particularly to SCR denitration high-efficient roasting is set
It is standby.
Background technique
Due to mankind's activity and economic fast development, China's environment is seriously damaged, and extreme climate increased significantly, right
People's life and property cause to seriously threaten, and cause heavy losses to country, while hindering the sustainable development of national economy.
Country has also paid huge cost for Environment control.China is coal-fired big country, and coal-burning power plant is that nitrogen oxides primarily discharges
Source accounts for about the 40% of total amount, will become the first batch of control object of country, honeycomb ceramics SCR denitrating catalyst main function is will to discharge
NOX in exhaust gas is converted into nitrogen and vapor, to reach environmental emission standard.
SCR device is mainly made of two big main bodys: scavenger preparation system and reactor body.By being sprayed into reactor
Enter reactant NH3, NOx is reduced to nitrogen.Since this reduction reaction is more sensitive to temperature, therefore catalyst need to be added to enhance
Reactivity meets the temperature requirement of reaction.
Cellular SCR denitration main component generally comprises nano-TiO2、V2O5And WO3.It is urged shared by this three kinds of ingredients
Agent ratio is more than 95 ﹪, and TiO2Proportion is generally 80%~85%.In order to meet production technology needs, guarantee easily to squeeze
In addition molding also needs to increase the mixture additives such as some viscose glues and glass fibre to increase pug intensity and mobility, adjustment
Its physical property, mobility and plasticity are poor after being kneaded due to the stirring of these ingredients, and molding difficulty is larger.
Because the product burnout cycle is fixed as 33h, and traditional calcination equipment electric heating mesh-belt kiln can only be 8 by single single layer
It loads, therefore separate unit calcination equipment production capacity is confined to 1500m3/, often becomes the production bottleneck of whole production line, to increase
Oil (gas) filling device will cause the increasing of cost of investment and the increase of occupied area again, will cause manufacturer's energy, cost of investment height etc.
Disadvantage, in market competition the problems such as shortage cost advantage.It is that pendulum exists that the production capacity of equipment how is improved under existence conditions
Problem in face of our manufacturers.
Utility model content
The purpose of the utility model is to provide SCR denitration high-efficient roasting equipment, to solve prior art unit consumption
The technical problem that energy is larger, production capacity is lower;And solve the problems, such as that the prior art cannot meet in time production and need.
To achieve the above objectives, the present invention adopts the following technical solutions:
SCR denitration high-efficient roasting equipment, it is characterised in that: including mesh-belt kiln support system, exhaust system, transmission
System and electric heating system, the mesh-belt kiln support system include long and narrow shaped steel frame main body, and the long and narrow shaped steel frame main body includes
Top is used to support the supporting leg of roasting main body, the roasting main body inner wall upper berth for the roasting main body of loading catalyst and lower part
Equipped with thermal insulation material, the exhaust system includes the exhaust group that several uniform intervals are laid in the top surface of long and narrow shaped steel frame main body
Part, the gas deflation assembly include the top surface for being located at long and narrow shaped steel frame main body, the hood being connected to roasting body interior and row
The exhaust branch pipe of gas hood connection and the waste discharge feed channel being connected to exhaust branch pipe, the conveyer system include being built in long and narrow fashioned iron
The mesh belt carrying roller of frame body and it is fixed between the legs rewind carrying roller, the mesh belt carrying roller and rewind and be laid with one on the outside of carrying roller
Layer bearer network band, the catalyst are placed on bearer network band, are distinguished in the roasting main body, above and below mesh belt carrying roller
Equipped with the upper electric heating layer and lower heating layer for calcined catalyst.
It is further preferred that the electric heating layer is made of support frame and the point heating element being laid on the support frame.
Further, the long 47m of the roasting apparatus is sequentially divided into a liter curved strip, clinkering zone and cooling zone, is located at the firing
The upper electric heating layer of band and lower heating layer power, which are greater than to be located at, rises curved strip and upper electric heating layer and lower heating layer in cooling zone.
Further, the waste discharge feed channel is horizontally supported above roasting main body by support component, the support group
Part includes vertical supporting and the conduit saddle set on vertical supporting top surface, and the waste discharge feed channel longitudinally extends along long and narrow shaped steel frame main body
Setting.
Further, the waste discharge feed channel is equipped with several spaced thiamines clean-up ports, the thiamines cleaning
Mouth is equipped with cover board.
Further, the catalyst agent has two layers, and every layer includes eight SCR denitrations.
Further, the exhaust branch pipe includes the vertical duct being connected to hood and the horizontal tube with waste discharge feed channel
Road, the horizontal pipe are equipped with exhaust regulating valve door.
In addition, the diameter of the waste discharge feed channel is 300 ~ 400mm.
It is further preferred that the diameter of the exhaust branch pipe is 200 ~ 210mm.
Compared with prior art the utility model have the characteristics that and the utility model has the advantages that
Traditional electric heating mesh-belt kiln can only be loaded by single single layer 8, and separate unit calcination equipment production capacity is confined to 1500m3/
Year, often become the production bottleneck of whole production line, increase equipment will cause the increasing of cost of investment and the increasing of occupied area again
Add, will cause manufacturer's energy, cost of investment height, the application structure of modification is simple, largely ties retaining existing mesh-belt kiln
Under conditions of structure material and outer dimension, the delivered payload capability of equipment is made to become single double holding 16 from original single single layer 8
Equipment capacity is directly improved the means such as 1 times, and the pipeline by increasing waste discharge system, ensure that the firing of product by root
Quality realizes energy-saving purpose, than existing single layer mesh-belt kiln energy saving 30%.
Detailed description of the invention
Fig. 1 be the utility model relates to SCR denitration high-efficient roasting equipment structural schematic diagram.
Appended drawing reference: 1- hood;2- exhaust branch pipe;21- vertical duct;22- horizontal pipe;3- waste discharge feed channel;4-
Mesh belt carrying roller;5- catalyst;6- supporting leg;7- rewinds carrying roller;8- bearer network band;The upper electric heating layer of 9-;10- vertical supporting;11- pipe
Support;12- thiamines clean-up port;13- cover board;14- exhaust regulating valve door;Heating layer under 16-;17- roasts main body;18- thermal insulation material.
Specific embodiment
To make technological means of the utility model, character of innovation, reaching purpose and effect is easy to understand, below
The present invention will be further described.
The embodiment recorded herein is the specific specific embodiment of the utility model, for illustrating the utility model
Design, be it is explanatory and illustrative, should not be construed as the limit to the utility model embodiment and the scope of the utility model
System.In addition to the embodiment recorded herein, those skilled in the art can also be public based on the claim of this application book and specification institute
For the content opened using obvious other technical solutions, these technical solutions include using doing to the embodiment recorded herein
The technical solution of any obvious substitutions and modifications out.
SCR denitration high-efficient roasting equipment, as shown in Figure 1, including mesh-belt kiln support system, exhaust system, transmission
System and electric heating system, mesh-belt kiln support system include long and narrow shaped steel frame main body, and long and narrow shaped steel frame main body includes that top is used for
The roasting main body 17 of loading catalyst 5 and lower part are used to support the supporting leg 6 of roasting main body 17, roast and are equipped on 17 inner wall of main body
Thermal insulation material 18, exhaust system include the gas deflation assembly that several uniform intervals are laid in the top surface of long and narrow shaped steel frame main body, row
Pneumatic module include the top surface for being located at long and narrow shaped steel frame main body, with roasting main body 17 inside be connected to hood 1, with hood 1
The exhaust branch pipe 2 of connection and the waste discharge feed channel 3 being connected to exhaust branch pipe 2, conveyer system include being built in long and narrow shaped steel frame master
It the mesh belt carrying roller 4 of body and is fixed between supporting leg 6 and rewinds carrying roller 7, mesh belt carrying roller 4 and rewind 7 outside of carrying roller and be laid with one layer
Bearer network band 8, catalyst 5 are placed on bearer network band 8, are respectively equipped in roasting main body 17, above and below mesh belt carrying roller 4
For the upper electric heating layer 9 and lower heating layer 16 of calcined catalyst, point of the electric heating layer 9 by support frame and laying on the support frame
Heating element composition, the long 47m of roasting apparatus is sequentially divided into a liter curved strip, clinkering zone and cooling zone, positioned at the upper electric heating of clinkering zone
Layer 9 and lower 16 power of heating layer, which are greater than to be located at, rises curved strip and upper electric heating layer 9 and lower heating layer 16 in cooling zone, waste discharge tracheae
Road 3 is horizontally supported at roasting main body 17 top by support component, and support component includes vertical supporting 10 and is set to vertical supporting
The conduit saddle 11 of 10 top surfaces, waste discharge feed channel 3 are longitudinally extended along long and narrow shaped steel frame main body;Waste discharge feed channel 3 is equipped with several
A spaced thiamines clean-up port 12, thiamines clean-up port 12 are equipped with cover board 13;5 catalyst of catalyst has two layers, every layer of packet
Include eight SCR denitrations;Exhaust branch pipe 2 includes the vertical duct 21 being connected to hood 1 and the water with waste discharge feed channel 3
Flat pipeline 22, horizontal pipe 22 are equipped with exhaust regulating valve door.The diameter of waste discharge feed channel 3 is 300 ~ 400mm;Exhaust branch pipe 2
Diameter be 200 ~ 210mm.
A kind of mesh-belt kiln remodeling method, SCR denitration high-efficient roasting equipment are to pass through the mesh-belt kiln remodeling method
Improved roasting apparatus, which is characterized in that the mesh-belt kiln remodeling method the following steps are included:
Step 1: increasing roasting 17 space of main body: roasting 17 furnace roof steelframe crossbeam of main body and furred ceiling cotton folded piece are increased,
Furnace roof steelframe crossbeam is fixed with long and narrow shaped steel frame main body wall using outer bolt, while upper electric heating layer 9 being improved to away from mesh belt
Carrying roller 4 is to 443mm;
Step 2: installing major diameter exhaust system additional: waste discharge feed channel 3 increases to 300 by 250 original ~ 350mm ~
2 caliber of exhaust branch pipe is increased to φ 200mm by 400mm, adds thiamines clean-up port 12 in 2 upper surface of exhaust branch pipe, lower surface is set
Thiamines discharge outlet is set, thiamines discharge outlet is not drawn into figure;
Step 3: increasing the bearing capacity of conveyer system: by the mesh belt carrying roller 4 of conveyer system and rewinding carrying roller 7 by original
50 × 3mm of φ is changed to φ 60 × 4mm stainless steel carrying roller, and accordingly replaces to bearing, SCR denitration high-efficient roasting equipment
Silicon-controlled heating module, control element, power control cabinet and cable bridge it is consistent with mesh-belt kiln, so far, mesh-belt kiln transformation complete.
(1) mesh-belt kiln support system: on the basis of former mesh-belt kiln steelframe main body, furnace roof steelframe crossbeam and furred ceiling cotton are rolled over
It is horizontal concordant with furnace roof that folded block increases 138mm(), i.e., mesh belt shares 443mm apart from upper layer electric heating layer, can satisfy the double-deck production
The height requirement that product load changes the installation method of former anchoring piece in furnace roof: passing through kiln top steel plate using anchoring piece bolt
It is fixed using outer bolt, keeps structure more firm, the original mesh belt of equipment has 305mm apart from upper layer electric heating layer, also phase after transformation
It should be promoted;
(2) electric heating system: after the completion of furnace insulation cotton folded piece is built, top electric heating tube aperture is mentioned on side wall
High aperture (mesh belt lower layer is constant, and upper layer correspondinglys increase) again, electric heating subregion is constant.Former mesh-belt kiln electric heating installed power is
330kw, actual motion power is about in 80-100kw or so (with reality after being stablized according to the production of previous experiences data original equipment
Production status is related), electric heating has biggish surplus capacity, therefore is not required to additionally increase electrical heating power again;According to being transformed simultaneously
Producer's creation data of normal operation, about in 130kw, energy consumption of unit product will reduce the operation power after transforming bilayer as.
(3) waste discharge pipeline: the substances such as sulphur ammonia generated after transformation by calcining double, and waste discharge main pipeline need to be by original
250/ φ 350 of φ increases to 300/ φ 400mm of φ, and waste discharge branch pipe is all changed to fan housing exhausting by original dotted extraction
Formula, and branch diameter is increased into φ 200mm, and increase several thiamines clean-up ports and bottom thiamines discharge outlet on pipeline, with
Facilitate the cleaning of sulphur ammoniacal substance in daily production process.
(4) transmission system: because mesh belt after transformation and carrying roller load-bearing increasing are twice, carrying roller is easier bending deformation, therefore needs
Full kiln carrying roller is changed to φ 60 × 4mm stainless steel carrying roller by original 50 × 3mm of φ, all bearings are accordingly replaced.Product
Firing period still remains original, to guarantee product firing quality and mitigate mesh belt and carrying roller load.
(5) control system: silicon-controlled heating module, control element, power control cabinet, cable testing bridge etc. can be with former mesh-belt kilns one
It causes, does not need additionally to increase cost.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, made any modification, equivalent replacement, transformation etc. should be included in the guarantor of the utility model
Within the scope of shield.