CN211302637U - Desulfurization and denitrification system for refractory material production - Google Patents

Desulfurization and denitrification system for refractory material production Download PDF

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Publication number
CN211302637U
CN211302637U CN201921617196.3U CN201921617196U CN211302637U CN 211302637 U CN211302637 U CN 211302637U CN 201921617196 U CN201921617196 U CN 201921617196U CN 211302637 U CN211302637 U CN 211302637U
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desulfurization
flue gas
tower
desulfurizing tower
pipe
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周栋浩
周栋烁
刘中辉
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Zhengzhou Huixing Industrial Co ltd
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Zhengzhou Huixing Industrial Co ltd
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Abstract

The utility model discloses a refractory material production SOx/NOx control system, gather device, desulfurizing tower, pulse bag collector, pipe heater, take off including the flue gasNitre tower, ammonia water jar and draught fan, the flue gas device that gathers includes the dust cage, filter screen and fan, the dust cage is installed on the exhanst gas outlet of each kiln, filter screen horizontal installation is in the dust cage, the fan can provide the flue gas in the kiln is taken out to sufficient wind-force, the flue gas of collection kiln that the dust cage can be fine, the filter screen can filter most dust and other impurity in the flue gas, improve the SOx/NOx control effect of SOx/NOx control system to the flue gas, install desulfurization preprocessing device in the intake pipe of desulfurizing tower, desulfurization preprocessing device detaches the partial SO in the flue gas earlier2The utility model has the advantages of, alleviate the desulfurization pressure of desulfurizing tower, change the inside blast pipe of desulfurizing tower into the exhaust spare in addition, the exhaust spare can slow down the flue gas velocity of flow, and the flue gas of being convenient for and the solution reaction that sprays improve the desulfurization effect of desulfurizing tower.

Description

Desulfurization and denitrification system for refractory material production
Technical Field
The utility model relates to a SOx/NOx control equipment technical field, concretely relates to refractory material produces SOx/NOx control system.
Background
At present, with the rapid development of the industry in China, the problem of air pollution is more and more serious, the haze phenomenon is more and more frequent, and the problem of controlling the air pollution is not moderate, researches show that the smoke discharged from an enterprise chimney is a main source of the air pollution, the smoke generally contains compounds such as nitric oxide, sulfide and the like which severely pollute the environment, the compounds can cause serious pollution to the atmosphere when the compounds are directly discharged into the atmosphere, the polluted gas can seriously affect the physical and mental health of people, in a desulfurization and denitrification system in the prior art, an adsorbent and a spraying solution (weak base solution) are often adopted to adsorb and remove the sulfide and the nitride in the waste gas, and then the smoke after desulfurization and denitrification is introduced into a smoke exhaust chimney through an induced draft fan to be discharged.
However, in the prior art, the flue gas of kiln is collected to the SOx/NOx control system can not be fine, and still contain a large amount of dust and other impurity in the flue gas, the SOx/NOx control effect of SOx/NOx control system is seriously influenced, sulphide row is the most bright in the flue gas in addition, the desulfurization ability of desulfurizing tower is certain, rely on the desulfurizing tower alone, the flue gas can not reach the desulfurization standard, the SOx/NOx control effect is not too good, the emission can the contaminated air, in addition the blast pipe of conventional desulfurizing tower is the branch pipe, the flue gas velocity of flow is fast, the tower wall of desulfurizing tower can be clashed to impurity that contains in the flue gas, can wear and tear the tower wall for a long time, and flue gas and shower blowout solution contact that speed is too.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a refractory material produces SOx/NOx control system to solve SOx/NOx control system can not be fine collect the flue gas, and contain a large amount of dusts and other impurity in the flue gas, seriously influence SOx/NOx control system's SOx/NOx control effect, and when the flue gas contains the sulphur content too high, the unsatisfactory problem of desulfurizing tower desulfurization effect.
In order to solve the technical problem, the utility model adopts the following technical scheme:
a desulfurization and denitrification system for refractory material production comprises a flue gas collecting device, a desulfurization tower, a pulse bag type dust collector, a pipeline heater, a denitrification tower, an ammonia water tank and an induced draft fan, wherein the gas inlet end of the flue gas collecting device is communicated with a smoke outlet of a kiln, the gas outlet end of the flue gas collecting device is communicated with the gas inlet end of the desulfurization tower through a pipeline, the gas outlet end of the desulfurization tower is communicated with the gas inlet end of the pulse bag type dust collector through a pipeline, the gas outlet end of the pulse bag type dust collector is communicated with the gas inlet end of the denitrification tower through a pipeline, the pipeline heater is installed on the pipeline between the pulse bag type dust collector and the denitrification tower, the gas outlet end of the denitrification tower introduces flue gas into a smoke exhaust chimney through a pipeline and the induced draft fan, and the ammonia water tank is communicated with the denitrification tower through a pipeline and a water pump;
the flue gas collecting device comprises a dust hood, a filter screen and a fan, wherein the gas inlet end of the dust hood is arranged on a flue gas outlet of the kiln, the filter screen is transversely arranged in the dust hood, and the gas outlet end of the dust hood is communicated with the gas inlet end of the desulfurizing tower through a pipeline and the fan;
the desulfurization tower is characterized in that a desulfurization pretreatment device is arranged in an air inlet pipe of the desulfurization tower, perforated retaining pieces are arranged at the end parts of the air inlet pipe communicated with the two ends of the desulfurization pretreatment device, and an air outlet end of the air inlet pipe is positioned in the bottom of the desulfurization tower and is communicated with an exhaust part.
The further technical scheme is as follows: desulfurization preprocessing device includes the edge active carbon layer and the desulfurizer reaction box that the intake pipe air inlet direction of desulfurizing tower set up, the active carbon layer is located in the intake pipe of desulfurizing tower, desulfurizer reaction box top is provided with the feeder hopper that has the gate valve, desulfurizer reaction box below is provided with the row who has sealing valve expects the pipe.
The further technical scheme is as follows: and the desulfurizer reaction box is provided with an electric heating wire which is communicated with an external power supply along the inner wall.
The further technical scheme is as follows: the exhaust part is a coiled pipe arranged upwards, and a plurality of exhaust holes for blowing downwards are formed in the part of the coiled pipe in the spiral direction.
The further technical scheme is as follows: and liquid level observation pipes communicated with the desulfurization tower and the denitration tower are vertically arranged on the outer side wall of the bottom of the desulfurization tower and the denitration tower.
The further technical scheme is as follows: the liquid level observation pipe is a transparent U-shaped pipe.
The further technical scheme is as follows: and a one-way valve is arranged on a pipeline communicated with the water pump and the denitration tower.
Compared with the prior art, the utility model discloses can reach one of following beneficial effect at least:
1. the utility model provides a refractory material production SOx/NOx control system, the flue gas device that gathers among this SOx/NOx control system includes the dust cage, filter screen and fan, the dust cage is installed on the exhanst gas outlet of each kiln, filter screen horizontal installation is in the dust cage, the fan can provide the flue gas in the kiln is taken out to sufficient wind-force, the flue gas of collection kiln that the dust cage can be fine, most dust and other impurity in the flue gas can be filtered to the filter screen, improve SOx/NOx control system to the flue gas effect, install desulfurization preprocessing device in the intake pipe of desulfurizing tower, desulfurization preprocessing device detaches the partial SO in the flue gas earlier2The utility model has the advantages of, alleviate the desulfurization pressure of desulfurizing tower, change the inside blast pipe of desulfurizing tower into the exhaust spare in addition, the exhaust spare can slow down the flue gas velocity of flow, improves the desulfurization effect of desulfurizing tower.
2. The desulfurization pretreatment device on the gas inlet pipe of the desulfurization tower firstly utilizes the active carbon layer to adsorb a part of SO2And impurities are mixed, and then the sulfur-containing flue gas is passed through a desulfurizing agent and mixed with SO in a high-temperature environment2Reaction, the exhaust part is arranged as an upward coiled pipe, and the exhaust part with a three-dimensional structure can also increase smokeAnd the area of contact who sprays solution, the convolution can slow down the flue gas velocity of flow, improve the flue gas and spray the contact time of solution, the exhaust hole of exhaust spare sets up down, can be with the flue gas earlier with the solution contact that sprays that the desulfurizing tower bottom accumulated, one-step desulfurization earlier, furthest's utilization sprays solution, equal vertical being provided with on the bottom lateral wall of desulfurizing tower and denitration tower rather than the intercommunication liquid level observation pipe, the liquid level observation pipe is made by corrosion-resistant material if (PEA hose, FEP hose and polytetrafluoroethylene), improve liquid level observation pipe life, the liquid level observation pipe is transparent U type pipe, easy to assemble and observation.
Drawings
FIG. 1 is the utility model relates to a refractory material production SOx/NOx control system's schematic structure diagram.
Fig. 2 is a schematic structural diagram of the desulfurizing tower of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1:
embodiment 1 please refer to an embodiment shown in fig. 1, a desulfurization and denitrification system for refractory material production comprises a flue gas collecting device 1, a desulfurization tower 2, a pulse bag type dust collector 3, a pipeline heater 4, a denitrification tower 5, an ammonia water tank 6 and an induced draft fan 7, wherein an air inlet end of the flue gas collecting device 1 is communicated with an exhaust flue of a kiln, an air outlet end of the flue gas collecting device 1 is communicated with an air inlet end of the desulfurization tower 2 through a pipeline 12, an air outlet end of the desulfurization tower 2 is communicated with an air inlet end of the pulse bag type dust collector 3 through a pipeline 12, an air outlet end of the pulse bag type dust collector 3 is communicated with an air inlet end of the denitrification tower 5 through a pipeline 12, the pipeline heater 4 is installed on the pipeline 12 between the pulse bag type dust collector 3 and the denitrification tower 5, the air outlet end of the denitrification tower 5 introduces flue gas into an exhaust chimney 13 through the pipeline 12 and the induced draft fan 7, the ammonia water tank 6 is communicated with the denitration tower 5 through a pipeline 12 and a water pump 14;
the flue gas collecting device 1 comprises a dust hood 111, a filter screen 112 and a fan 113, wherein the gas inlet end of the dust hood 111 is arranged on a flue gas outlet of the kiln, the filter screen 112 is transversely arranged in the dust hood 111, and the gas outlet end of the dust hood 111 is communicated with the gas inlet end of the desulfurizing tower 2 through a pipeline 12 and the fan 113;
be provided with desulfurization preprocessing device 8 on the intake pipe 21 of desulfurizing tower 2, intake pipe 21 go up with the tip of desulfurization preprocessing device 8 both ends intercommunication is provided with foraminiferous separation blade 9, the end of giving vent to anger of intake pipe 21 is located in the bottom of desulfurizing tower 2 and the intercommunication has exhaust member 10.
The inlet end of the flue gas collecting device 1 is hermetically communicated with the outlet of each kiln, the outlet end of the flue gas collecting device 1 is hermetically communicated with an inlet pipe 21 on the inlet end of a desulfurizing tower 2 through a pipeline 12, the outlet end of the desulfurizing tower 2 is hermetically communicated with the inlet end of a pulse bag type dust collector 3 through a pipeline 12, the outlet end of the pulse bag type dust collector 3 is hermetically communicated with the inlet end of a denitration tower 5 through a pipeline 12, a pipeline heater 4 is arranged on the pipeline 12 between the pulse bag type dust collector 3 and the denitration tower 5 to heat the flue gas in the pipeline 12, so that the flue gas can be conveniently reacted and denitrated by ammonia water, the outlet end of the denitration tower 5 introduces the flue gas into a smoke exhaust chimney 13 through the pipeline 12 and an induced draft fan 7 to be exhausted into the atmosphere, a gas-liquid separator can be arranged on the pipeline 12 of the denitration tower 5 and the smoke exhaust chimney 13 to treat the liquid contained in the flue gas and then exhaust the atmosphere, an ammonia water tank 6 is communicated with the denitration tower, pumping ammonia water into the denitration tower 5, spraying the ammonia water in a mist shape, fully contacting with flue gas, and removing nitrified substances with the maximum effect;
the flue gas collecting device 1 comprises a dust hood 111, a filter screen 112 and a fan 113, wherein the air inlet end of the dust hood 111 is arranged on a flue gas outlet of a kiln, the filter screen 112 is transversely arranged in the dust hood 111, the air outlet end of the dust hood 111 is communicated with the air inlet end of the desulfurization tower 2 through a pipeline 12 and the fan 113, the dust hood 111 is arranged on the flue gas outlet of each kiln, the filter screen 112 is horizontally arranged in the dust hood 112, the dust hood 111 can well collect flue gas of the kiln, most of dust and other impurities in the flue gas can be filtered out by the filter screen 112, and the fan 113 can provide enough wind power to pump out the flue gas in the kiln, so that the desulfurization and denitrification effects of the desulfurization and denitrification system on the flue gas are improved;
install desulfurization preprocessing device 8 on the intake pipe 21 of desulfurizing tower 2, desulfurization preprocessing device 8 is detached partial SO2 in the flue gas earlier, alleviates desulfurizing pressure of desulfurizing tower 2, changes the inside blast pipe of desulfurizing tower 2 into exhaust 9 in addition, and exhaust 9 can slow down the flue gas velocity of flow, improves the desulfurization effect of desulfurizing tower.
Example 2:
based on the above embodiment, in embodiment 2, referring to fig. 2, as an embodiment, the desulfurization pretreatment device 8 includes an activated carbon layer 81 and a desulfurizing agent reaction tank 82, which are arranged along the air inlet direction of the air inlet pipe 21 of the desulfurization tower 2, the activated carbon layer 81 is located in the air inlet pipe 21 of the desulfurization tower 2, a feed hopper 821 with a gate valve 822 is arranged above the desulfurizing agent reaction tank 82, and a discharge pipe 823 with a sealing valve 824 is arranged below the desulfurizing agent reaction tank 82. The desulfurizing agent reaction box 82 is provided along its inner wall with an electric heating wire to be connected to an external power source.
A feed hopper 821 with a gate valve 822 is arranged above the desulfurizer reaction box 82, a discharge pipe 823 with a sealing valve 824 is arranged below the desulfurizer reaction box 82, the gate valve 822 and the sealing valve 824 ensure that the feeding and discharging of the desulfurizer reaction box 82 are controllable, the sealing performance of the desulfurizer reaction box 82 can also be ensured, the leakage of sulfur-containing and nitrate-containing flue gas is prevented, and the desulfurization pretreatment device 3 firstly utilizes the active carbon layer 31 to adsorb a part of SO2Impurities are mixed, the inside of the desulfurizer reaction box 82 is heated by an electric heating wire, and then the sulfur-containing flue gas is mixed with the desulfurizer under the high-temperature environment and SO2Reacting to remove part of SO in the flue gas2To reduce the desulfurization pressure of the desulfurization tower and improve the desulfurization effect of the desulfurization tower, the dry desulfurizing agent (such as small-block CaCO) is added into the desulfurizing agent reaction box 323Or CaO raw material), and the desulfurization is carried out by utilizing the dry desulfurization principle, and the raw material is simple and easy to obtain, clean, controllable and convenient to operate.
Example 3:
on the basis of the above embodiment, embodiment 3 shows an embodiment, the exhaust member 10 is an upward-arranged spiral pipe, and a part of the spiral pipe is provided with a plurality of exhaust holes 101 for blowing air downwards along the spiral direction.
Exhaust member 10 sets up to coiled pipe up, spatial structure's exhaust member 10 can increase the flue gas and spray the area of contact of solution, the coiled structure can slow down the flue gas velocity of flow, improve and spray the contact time of solution, improve the desulfurization effect that sprays the solution, exhaust member 10's exhaust hole 101 sets up down, can be with the flue gas earlier with the 2 bottoms of desulfurizing tower store up spray the solution contact, earlier one step of desulfurization, furthest's utilization sprays the solution, and the partial pipeline of coiled pipe can also be located the hydrops of 2 bottoms of desulfurizing tower, reduce the temperature of 3 exhaust flue gases through desulfurization preprocessing device through the hydrops, prevent that the flue gas temperature is too high, easy evaporation sprays liquid, the effect is sprayed in the influence.
Example 4:
on the basis of the above embodiment, in the embodiment shown in embodiment 4, the outer side walls of the bottoms of the desulfurization tower 2 and the denitration tower 5 are both vertically provided with liquid level observation pipes 6 communicated with the desulfurization tower 2 and the denitration tower 5. The liquid level observation pipe 11 is a transparent U-shaped pipe.
Liquid level observation pipe 11 is made by corrosion resistant material if (PEA hose, FEP hose and polytetrafluoroethylene), improve liquid level observation pipe 11's life, the liquid level observation pipe is transparent U type pipe, set up two through-holes along vertical direction on desulfurizing tower 2 and denitration tower 5's bottom lateral wall, be provided with in the through-hole with desulfurizing tower 2 and denitration tower 5 inside intercommunication and the part stretch out outside joint, the both ends direct seal of transparent U type pipe install on connecting can, liquid level observation pipe 11 replaces traditional observation window, reduce the cost that sets up the observation window, and the technical difficulty that sets up the observation window on desulfurizing tower 2 and denitration tower 5's lateral wall is also bigger, liquid level observation pipe 11 easy to assemble and observe the liquid level height condition.
Example 5:
in addition to the above embodiments, in the embodiment shown in embodiment 5, a check valve 15 is installed on a pipeline through which the water pump 14 communicates with the denitration tower 5.
Prevent through check valve 15 that flue gas or air from advancing like in aqueous ammonia jar 6, lead to the aqueous ammonia to deteriorate, influence the denitration effect of aqueous ammonia to the flue gas.
Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. More specifically, various variations and modifications are possible in the component parts or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts or arrangements, other uses will also be apparent to those skilled in the art.

Claims (7)

1. The utility model provides a refractory material production SOx/NOx control system which characterized in that: including flue gas summarization device (1), desulfurizing tower (2), pulse bag dust collector (3), pipe heater (4), denitration tower (5), aqueous ammonia jar (6) and draught fan (7), the inlet end of flue gas summarization device (1) communicates with the outlet flue of kiln, the flue gas summarize the end of giving vent to anger of device (1) through pipeline (12) with the inlet end intercommunication of desulfurizing tower (2), the end of giving vent to anger of desulfurizing tower (2) through pipeline (12) with the inlet end intercommunication of pulse bag dust collector (3), the end of giving vent to anger of pulse bag dust collector (3) through pipeline (12) with the inlet end intercommunication of denitration tower (5), pipe heater (4) are installed on pulse bag dust collector (3) with pipeline (12) between denitration tower (5), the end of giving vent to anger of denitration tower (5) through pipeline (12) with draught fan (7) introduce the flue gas into chimney (13), the ammonia water tank (6) is communicated with the denitration tower (5) through a pipeline (12) and a water pump (14);
the flue gas collecting device (1) comprises a dust hood (111), a filter screen (112) and a fan (113), wherein the gas inlet end of the dust hood (111) is arranged on a flue gas outlet of a kiln, the filter screen (112) is transversely arranged in the dust hood (111), and the gas outlet end of the dust hood (111) is communicated with the gas inlet end of the desulfurizing tower (2) through a pipeline (12) and the fan (113);
be provided with desulfurization preprocessing device (8) on intake pipe (21) of desulfurizing tower (2), intake pipe (21) go up with the tip of desulfurization preprocessing device (8) both ends intercommunication is provided with foraminiferous separation blade (9), the end of giving vent to anger of intake pipe (21) is located in the bottom of desulfurizing tower (2) and the intercommunication has exhaust spare (10).
2. The desulfurization and denitrification system for refractory production according to claim 1, wherein: desulfurization preprocessing device (8) include the edge activated carbon layer (81) and desulfurizer reaction box (82) that intake pipe (21) air inlet direction of desulfurizing tower (2) set up, activated carbon layer (81) are located in intake pipe (21) of desulfurizing tower (2), desulfurizer reaction box (82) top is provided with feeder hopper (821) that has gate valve (822), desulfurizer reaction box (82) below is provided with row's material pipe (823) that has sealing valve (824).
3. The desulfurization and denitrification system for refractory production according to claim 2, wherein: and the desulfurizer reaction box (82) is provided with an electric heating wire which is communicated with an external power supply along the inner wall.
4. The desulfurization and denitrification system for refractory production according to claim 1, wherein: the exhaust part (10) is a coiled pipe arranged upwards, and a plurality of exhaust holes (101) for blowing downwards are formed in the part of the coiled pipe in the spiral direction.
5. The desulfurization and denitrification system for refractory production according to claim 1, wherein: and liquid level observation pipes (11) communicated with the desulfurization tower (2) and the denitration tower (5) are vertically arranged on the outer side wall of the bottom of the desulfurization tower.
6. The desulfurization and denitrification system for refractory production according to claim 5, wherein: the liquid level observation pipe (11) is a transparent U-shaped pipe.
7. The desulfurization and denitrification system for refractory production according to claim 1, wherein: and a one-way valve (15) is arranged on a pipeline communicated with the water pump (14) and the denitration tower (5).
CN201921617196.3U 2019-09-26 2019-09-26 Desulfurization and denitrification system for refractory material production Active CN211302637U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114534474A (en) * 2022-01-12 2022-05-27 江阴市尚时工程装备有限公司 High-cleanliness desulfurization and denitrification dust removal device with circulation synergism
CN114950055A (en) * 2022-06-17 2022-08-30 安徽顺达环保科技股份有限公司 Dry desulfurization and denitrification device for cement kiln flue gas and implementation method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114534474A (en) * 2022-01-12 2022-05-27 江阴市尚时工程装备有限公司 High-cleanliness desulfurization and denitrification dust removal device with circulation synergism
CN114534474B (en) * 2022-01-12 2022-12-27 江阴市尚时工程装备有限公司 High-cleanliness desulfurization and denitrification dust removal device with circulation synergism
CN114950055A (en) * 2022-06-17 2022-08-30 安徽顺达环保科技股份有限公司 Dry desulfurization and denitrification device for cement kiln flue gas and implementation method thereof
CN114950055B (en) * 2022-06-17 2023-12-19 安徽顺达环保科技股份有限公司 Dry desulfurization and denitrification device for cement kiln flue gas and implementation method thereof

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