CN209348458U - A kind of PNCR denitrating system - Google Patents
A kind of PNCR denitrating system Download PDFInfo
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- CN209348458U CN209348458U CN201822167945.9U CN201822167945U CN209348458U CN 209348458 U CN209348458 U CN 209348458U CN 201822167945 U CN201822167945 U CN 201822167945U CN 209348458 U CN209348458 U CN 209348458U
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- denitrfying agent
- feed bin
- pncr
- pole
- agent feed
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Abstract
The utility model discloses a kind of PNCR denitrating systems, belong to the technical field of industrial furnace denitrating flue gas, it is intended to provide one kind and avoids situations such as building bridge, being compacted appearance, and PNCR denitrating system with long service life, its key points of the technical solution are that including PLC controller, it further include the denitrfying agent feed bin set gradually, weighing screw conveyor, roots blower, charging line, the denitrfying agent bin bottom is equipped with discharge valve, and the denitrfying agent feed bin side wall is at least provided with two symmetrically arranged gas dish.By the setting of gas dish, the effect for accelerating denitrfying agent quick blanking from denitrfying agent feed bin can be played.
Description
Technical field
The utility model relates to the technical field of industrial furnace denitrating flue gas, in particular to a kind of PNCR denitrating system.
Background technique
Denitration, which refers to the process of, removes denitrification in combustion product gases.To prevent from generating excessive nitrogen in boiler after coal combustion
Oxide contaminant environment should carry out denitration process to flue gas.It is existing with the continuous improvement of smoke pollution of boiler object discharge standard
There are more and more limitations in gas denitrifying technology.
Macromolecule denitrating technique (PNCR denitrating technique) be department of chemistry, tsinghua university thank continuous penetrating judgment award after many years research and develop, with
The cooperative development of Beijing metal and stone De Sheng petroleum science and technology Development Co., Ltd, uses Fluid Mechanics Computation (CFD) and chemical kinetics mould
Type (CKM) carry out engineering design, i.e., by the size of advanced virtual reality designing technique and particular combustion apparatus, fuel type and
Characteristic, dore furnace load range, combustion system, burner hearth excess air, initial or baseline NOx concentration, chamber flue gas temperature distribution,
Burner hearth flue gas flow rate distribution etc. combines carry out engineering design.It is used in cement plant, power plant and most of kiln, makes its NOX
Discharge is met the requirements.Idea using polymeric powder denitration is the suitable feed entrance point of selection, keeps denitrfying agent abundant with flue gas
Mixing, is sprayed into flue gas and reacts with NOX and reach denitration purpose, product is H2O、N2、CO2And other non-toxic gas and
Common flue gas component.
Denitrating system in the currently known field includes PLC controller, denitrfying agent feed bin, weighing screw conveyor,
Roots blower, charging line.In actual use, it is obstructed so that producing often to will appear discharging in discharge process for denitrfying agent feed bin
The various problems such as raw bridge formation, compacting, to inflating in feed bin or carrying out bunker wall vibration, these modes exist traditional settling mode
Certain drawbacks, such as effect are unstable, and service life is not grown, and are influenced to cause bulkhead by denitrfying agent characteristic permanent broken
It is bad.
Utility model content
The purpose of the utility model is to provide a kind of PNCR denitrating system, there is situations such as avoiding building bridge, compacting appearance, and
The advantages of long service life.
The above-mentioned technical purpose of the utility model has the technical scheme that
A kind of PNCR denitrating system, including PLC controller further include the denitrfying agent feed bin set gradually, weighing spiral transferring
Send machine, roots blower, charging line, the denitrfying agent bin bottom is equipped with discharge valve, state denitrfying agent feed bin side wall at least provided with
Two symmetrically arranged gas dish.
By using above-mentioned technical proposal, when the system is operated, discharge valve is opened, denitrfying agent is flowed out from denitrfying agent feed bin,
It ventilates simultaneously to gas dish, gas dish is generated generates air-flow and vibration in denitrfying agent feed bin, promotes denitrfying agent quickly from denitrfying agent material
It is flowed out in storehouse.
Further, the gas dish includes center-pole, and the center-pole protrudes into one end in denitrfying agent feed bin to be stopped equipped with dish
Valve is returned, the center-pole stretches out denitrfying agent feed bin one end and is successively arranged sealing ring, gasket and hex nut, and the center-pole is hollow
Setting, center-pole are connected to air pump backwards to disc-shape check valve one end, and the junction of the center-pole and disc-shape check valve is equipped with ventilation
Hole.
By using above-mentioned technical proposal, air pump is ventilated into center-pole, and gas generates vibration, vibration to disc-shape check valve
Disc-shape check valve situations such as agitation is generated to denitrfying agent, generates bridge formation in so avoidable denitrfying agent feed bin appearance, accelerate
Denitrfying agent quickly flows out.
Further, the venthole is uniformly arranged at least provided with two, and around center-pole.
By using above-mentioned technical proposal, so that disc-shape check valve uniform force, the vibrating effect of generation is more preferable, can also prolong
The service life of long disc-shape check valve.
Further, the denitrfying agent feed bin outer wall is equipped with electric motor of shaker.
By using above-mentioned technical proposal, electric motor of shaker beats denitrfying agent feed bin outer wall, further avoids denitration
Agent is adhered to the inner wall of denitrfying agent feed bin, accelerates denitrfying agent outflow.
Further, electric tracing is equipped in the denitrfying agent feed bin.
By using above-mentioned technical proposal, electric tracing heats denitrfying agent, reaches temperature required in this system.
Further, the temperature detect switch (TDS) for controlling electric tracing on-off is equipped in the denitrfying agent feed bin.
By using above-mentioned technical proposal, temperature detect switch (TDS) is for keeping denitrfying agent constant temperature, so that the optimal performance of denitrfying agent
It brings into play.
Further, the weighing screw conveyor includes hopper, and blender is equipped in the hopper.
By using above-mentioned technical proposal, blender is due to the denitrfying agent in stirring hopper, convenient for denitrfying agent in weighing spiral shell
Revolve conveying in conveyer.
Further, electrical ball valve is equipped in the charging line.
By using above-mentioned technical proposal, when needing to convey denitrfying agent into boiler, opens electrical ball valve and make denitration
Agent can pass through conveying.
In conclusion the utility model has the following beneficial effects:
1. passing through the setting of gas dish, it can play and accelerate the effect that denitrfying agent is quickly flowed out from denitrfying agent feed bin；
2. can play by the setting of electric motor of shaker and further speed up the effect that denitrfying agent is flowed out from denitrfying agent feed bin
Fruit；
3. passing through the setting of electric tracing and temperature detect switch (TDS), the effect for keeping denitrfying agent constant temperature can be played.
Detailed description of the invention
Fig. 1 is the system block diagram of PNCR denitrating system in embodiment；
Fig. 2 is in embodiment for embodying the schematic diagram of gas dish.
In figure, 1, gas dish；2, center-pole；3, disc-shape check valve；4, venthole；5, gasket；6, sealing ring；7, hexagonal spiral shell
It is female.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
Wherein identical components are presented with like reference characters.It should be noted that word used in the following description
Language "front", "rear", "left", "right", "up" and "down" refer to the direction in attached drawing, word " bottom surface " and " top surface ", "inner" and
"outside" refers respectively to the direction towards or away from geometric center of specific component.
Embodiment: a kind of PNCR denitrating system further includes the denitration set gradually as shown in Figure 1, including PLC controller
Agent feed bin, weighing screw conveyor, roots blower, charging line.PLC controller uses the S7 300 of Siemens in the present embodiment
Series of PLC, MCGS TPC1061TI touch screen are monitored and operate, by the parameter detecting to this system and to each work
Skill link object is controlled and is adjusted, so that system stablizes effectively operation, achievees the purpose that denitration.This system can be applied to send out
The industries such as electricity, chemical industry, steel.
As shown in Figure 1, denitrfying agent bin bottom taper is arranged, discharge valve is equipped at the blanking port of bottom, discharge valve passes through
Relay is connect with PLC controller, controls its switch by PLC controller.
As shown in Figure 1, being equipped with electric tracing and the temperature detect switch (TDS) for controlling electric tracing on-off, electric tracing in denitrfying agent feed bin
It is connect by relay with PLC controller, electric tracing heats denitrfying agent, reaches temperature required in this system, and temperature control is opened
It closes for keeping denitrfying agent constant temperature, so that the optimal performance of denitrfying agent is brought into play.When temperature is lower than 30 DEG C, temperature detect switch (TDS) is beaten
Electric tracing is opened to heat the denitrfying agent in denitrfying agent feed bin；When temperature is higher than 50 DEG C, temperature detect switch (TDS) closes electric tracing.
As shown in Figure 1, denitrfying agent feed bin outer wall is equipped with electric motor of shaker, when denitrfying agent feed bin blanking, electric motor of shaker beats de-
Nitre agent feed bin outer wall, avoids denitrfying agent from being adhered to denitrfying agent feed bin inner wall.Beat denitrfying agent feed bin outer wall within electric motor of shaker every 3 minutes
Once, clock for 5 seconds is beaten every time, so that the denitrfying agent for being adhered to denitrfying agent feed bin inner wall is fallen.
As illustrated in fig. 1 and 2, denitrfying agent feed bin side wall is set there are four gas dish 1 of the uniform ring around setting, denitrfying agent feed bin side wall
On offer through-hole, gas dish 1 includes center-pole 2, and center-pole 2 penetrates through-hole, and center-pole 2 protrudes into one end in denitrfying agent feed bin and is equipped with
Disc-shape check valve 3, center-pole 2 stretch out denitrfying agent feed bin one end and are successively arranged sealing ring 6, gasket 5 and hex nut 7, center-pole 2
Hollow setting, center-pole 2 are connected to air pump backwards to 3 one end of disc-shape check valve, and center-pole 2 and the junction of disc-shape check valve 3 are equipped with
Venthole 4.There are four venthole 4 is set, four ventholes 4 are uniformly arranged around center-pole 2.Air pump is ventilated into center-pole 2, gas
Body generates vibration to disc-shape check valve 3, and the disc-shape check valve 3 of vibration generates agitation to denitrfying agent, so avoidable denitrfying agent material
The appearance for situations such as bridge formation is generated in storehouse, accelerates denitrfying agent quickly to flow out.Starting in air pump every 1.5 minutes is primary, for 3 seconds every time
Clock.
As shown in Figure 1, weighing screw conveyor includes hopper, it is equipped with blender in hopper, blender persistently stirs hopper
Interior denitrfying agent, convenient for weighing screw conveyor conveying.Weighing screw conveyor weighing capacity is 30kg, when more than 30kg,
Weighing screw conveyor stops operating.
As shown in Figure 1, being equipped with electrical ball valve in charging line, electrical ball valve is for opening and closing charging line.When need
When conveying denitrfying agent into boiler, opens electrical ball valve and denitrfying agent is enabled to pass through conveying.
Specific implementation process:
S1: opening electrical ball valve, opens charging line；
S2: roots blower is opened, negative pressure is generated in charging line；
S3: discharge valve and electric tracing are opened；
S4: turn on agitator.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
Claims (8)
1. a kind of PNCR denitrating system, including PLC controller further include the denitrfying agent feed bin set gradually, weighing helical feed
Machine, roots blower, charging line, the denitrfying agent bin bottom are equipped with discharge valve, it is characterised in that: denitrfying agent feed bin side
Wall is at least provided with two symmetrically arranged gas dish (1).
2. a kind of PNCR denitrating system according to claim 1, it is characterised in that: the gas dish (1) includes center-pole
(2), the center-pole (2) protrudes into one end in denitrfying agent feed bin and is equipped with disc-shape check valve (3), and the center-pole (2) stretches out denitration
Agent feed bin one end is successively arranged sealing ring (6), gasket (5) and hex nut (7), the hollow setting of the center-pole (2), center-pole
(2) it is connected to air pump backwards to disc-shape check valve (3) one end, the center-pole (2) and the junction of disc-shape check valve (3) are equipped with ventilation
Hole (4).
3. a kind of PNCR denitrating system according to claim 2, it is characterised in that: the venthole (4) is at least provided with two
It is a, and be uniformly arranged around center-pole (2).
4. a kind of PNCR denitrating system according to claim 1, it is characterised in that: the denitrfying agent feed bin outer wall is equipped with vibration
Make motor.
5. a kind of PNCR denitrating system according to claim 1, it is characterised in that: be equipped with electric companion in the denitrfying agent feed bin
Heat.
6. a kind of PNCR denitrating system according to claim 5, it is characterised in that: be equipped with and be used in the denitrfying agent feed bin
Control the temperature detect switch (TDS) of electric tracing on-off.
7. a kind of PNCR denitrating system according to claim 1, it is characterised in that: the weighing screw conveyor includes material
Bucket, the hopper is interior to be equipped with blender.
8. a kind of PNCR denitrating system according to claim 1, it is characterised in that: be equipped with electric ball in the charging line
Valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822167945.9U CN209348458U (en) | 2018-12-21 | 2018-12-21 | A kind of PNCR denitrating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822167945.9U CN209348458U (en) | 2018-12-21 | 2018-12-21 | A kind of PNCR denitrating system |
Publications (1)
| Publication Number | Publication Date |
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| CN209348458U true CN209348458U (en) | 2019-09-06 |
Family
ID=67800438
Family Applications (1)
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| CN201822167945.9U Active CN209348458U (en) | 2018-12-21 | 2018-12-21 | A kind of PNCR denitrating system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113856423A (en) * | 2021-11-15 | 2021-12-31 | 甘肃泰聚环保科技有限公司 | Full-automatic denitration equipment and denitration method |
-
2018
- 2018-12-21 CN CN201822167945.9U patent/CN209348458U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113856423A (en) * | 2021-11-15 | 2021-12-31 | 甘肃泰聚环保科技有限公司 | Full-automatic denitration equipment and denitration method |
| CN113856423B (en) * | 2021-11-15 | 2023-09-26 | 甘肃泰聚环保科技有限公司 | Full-automatic denitration device and denitration method |
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