CN108993123A - A kind of chemical industry tail gas purification absorption plant and its application method - Google Patents

A kind of chemical industry tail gas purification absorption plant and its application method Download PDF

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Publication number
CN108993123A
CN108993123A CN201811046097.4A CN201811046097A CN108993123A CN 108993123 A CN108993123 A CN 108993123A CN 201811046097 A CN201811046097 A CN 201811046097A CN 108993123 A CN108993123 A CN 108993123A
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CN
China
Prior art keywords
absorption plant
lye
room
chemical industry
tail gas
Prior art date
Application number
CN201811046097.4A
Other languages
Chinese (zh)
Inventor
何海华
Original Assignee
佛山市禅城区诺高环保科技有限公司
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Application filed by 佛山市禅城区诺高环保科技有限公司 filed Critical 佛山市禅城区诺高环保科技有限公司
Priority to CN201811046097.4A priority Critical patent/CN108993123A/en
Publication of CN108993123A publication Critical patent/CN108993123A/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/77Liquid phase processes
    • B01D53/78Liquid phase processes with gas-liquid contact
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/04Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/46Removing components of defined structure
    • B01D53/60Simultaneously removing sulfur oxides and nitrogen oxides

Abstract

The present invention relates to a kind of chemical industry tail gas purification absorption plant and its application methods, including absorption plant main body, solution purification room and active carbon purifying room, the absorption plant main body is made of the solution purification room and active carbon purifying room for storing by lye, the solution purification room is located at absorption plant bottom part body, a kind of chemical industry tail gas purification absorption plant proposed by the present invention and its application method, the indoor sodium hydroxide solution solubility of solution purification is detected by concentration of lye sensor, preset value in concentration data and single-chip microcontroller is compared, if concentration is lower than preset value, when deficiency purification exhaust gas, the solenoid valve of lye locker room bottom and waste collection box top is opened by relay, feed new lye, and discarded lye is discharged into waste liquid collecting box and is collected, without replacing lye manually, it is very convenient.

Description

A kind of chemical industry tail gas purification absorption plant and its application method

Technical field

The invention belongs to chemical treatment equipment technical field more particularly to a kind of chemical industry tail gas purification absorption plant and its make Use method.

Background technique

Chemical Manufacture is essential for daily daily necessity, essential during Chemical Manufacture to generate one A little poisonous and harmful substances, wherein just containing poisonous and hazardous gas, if these gases are directly discharged in atmosphere, it will to ring Very big pollution is caused in border, while there is also peculiar smell in tail gas, affect to the body of people.

Existing chemical industry tail gas purification absorption plant is generally provided with lye absorption cleaning exhaust gas, but exhaust gas is passed through speed Fastly, exhaust gas is excessively concentrated, and lye can all be caused to be difficult in time and waste gas reaction, cause the clean-up effect to exhaust gas bad, and alkali Concentration reduction, which is used for a long time, in liquid not can guarantee clean-up effect then, it is therefore desirable to regularly replace, but the purification of existing chemical industry tail gas is inhaled Receiving apparatus is all that manual replacement lye is cumbersome.

Summary of the invention

The present invention be solve well-known technique and provide a kind of chemical industry tail gas purify absorption plant and its Application method.

The present invention is adopted the technical scheme that solve well-known technique: a kind of chemical industry tail gas purification Absorption plant, including absorption plant main body, solution purification room and active carbon purifying room, the absorption plant main body is by having stored The solution purification room of lye and active carbon purifying room composition, the solution purification room is located at absorption plant bottom part body, and lye The first chock flap and the second chock flap are equipped in clean room, first chock flap and the second chock flap are respectively equipped with circular vent Hole and rectangle venthole, the active carbon purifying chamber interior are equipped with the first active carbon layer and 5-6 cm thicks of 12-16 cm thicks The second active carbon layer, be fixedly connected with bracket on the right side of the absorption plant main body, lye locker room be installed on the bracket With electromechanical box, the absorption plant main body lower section is equipped with waste liquid collecting box, and the lye locker room and waste liquid collecting box pass through Hose is connected to solution purification room, and hose and waste liquid collecting box and solution purification between lye locker room and solution purification room Hose between room is mounted on solenoid valve, and solution purification room bottom is equipped with concentration of lye sensor.

Further, the absorption plant bottom part body is connect with into flue gas leading, and absorption plant bottom part body with into useless Tracheae junction is equipped with filter screen made of stainless steel material.

Further, the absorption plant body top is equipped with exhaust outlet, and exhaust ports are equipped with gaseous mass detection dress It sets, the gaseous mass detection device is by content of nitrogen dioxide sensor and sulfur dioxide concentration sensor.

Further, relay and single-chip microcontroller built in the electromechanical box, one end of the single-chip microcontroller respectively with gaseous mass Detection device and the electrical connection of concentration of lye sensor, the other end of the single-chip microcontroller is electrically connected with relay input terminal, it is described after Electrical output terminal is electrically connected with warning light and solenoid valve respectively.

Further, the lye is specially sodium hydroxide solution.

Further, the concentration of lye sensor is specially naoh concentration sensor.

Further, warning light is installed on the left of the absorption plant main body.

A kind of chemical industry tail gas proposed by the present invention purifies absorption plant application method, comprising the following steps:

A first in the indoor lye of solution purification and exhaust gas sulfur dioxide, nitrogen dioxide, steam, foul smell and The reaction such as organic matter, eliminates these pollutants;

The gas that b is discharged from solution purification room passes through indoor first active carbon layer of active carbon purifying and the second active carbon layer Remaining impurity, reaction residue, noxious material, organic matter etc. in chemical industry tail gas are further absorbed, chemical industry tail gas is cleaned into It can discharge gas.

The present invention has the advantage that as follows with good effect:

1. a kind of chemical industry tail gas purification absorption plant proposed by the present invention and its application method, pass through concentration of lye sensor The indoor sodium hydroxide solution solubility of solution purification is detected, the preset value in concentration data and single-chip microcontroller is compared, if concentration is low When preset value, deficiency purification exhaust gas, the solenoid valve of lye locker room bottom and waste collection box top is opened by relay, New lye is fed, and discarded lye is discharged into waste liquid collecting box and is collected, it is very convenient without replacement lye manually.

2. a kind of chemical industry tail gas purification absorption plant proposed by the present invention and its application method, are detected by gaseous mass and are filled The concentration for detecting polluted gas in the gas given off is set, if concentration is higher than preset value in single-chip microcontroller, purifies not up to standard, list Piece machine sends signal to relay, controls warning light by relay and issues prompt, worker is reminded to check that chemical industry tail gas is net in time Change whether absorption plant goes wrong.

3. a kind of chemical industry tail gas purification absorption plant proposed by the present invention and its application method, pass through the first chock flap and the The setting of two chock flaps guarantees that exhaust gas enters the uniformity of solution purification room, and then improve net to reduce the speed that exhaust gas is passed through Change time and clean-up effect.

Detailed description of the invention

Fig. 1 is device overall structure figure provided in an embodiment of the present invention.

In figure: 1, absorption plant main body, 2, solution purification room, 3, active carbon purifying room, the 4, first chock flap, the 5, second resistance Gas plate, 6, lye, the 7, first active carbon layer, the 8, second active carbon layer, 9, exhaust outlet, 10, gaseous mass detection device, 11, branch Frame, 12, lye locker room, 13, electromechanical box, 14, waste liquid collecting box, 15, solenoid valve, 16, strainer, 17, concentration of lye sensor, 18, warning light, 19, into flue gas leading.

Specific embodiment

In order to further understand the content, features and effects of the present invention, hereby enumerating following embodiment, and cooperate attached drawing Detailed description are as follows.

Detailed retouch is made to a kind of chemical industry tail gas purification absorption plant of the invention and its application method below with reference to Fig. 1 It states: a kind of chemical industry tail gas purification absorption plant, including absorption plant main body 1, solution purification room 2 and active carbon purifying room 3, institute It states absorption plant main body 1 and is made of storage the solution purification room 2 and active carbon purifying room 3 of lye 6, the solution purification room 2 Positioned at 1 bottom of absorption plant main body, and the first chock flap 4 and the second chock flap 5 are equipped in solution purification room 2, first resistance Gas plate 4 and the second chock flap 5 are respectively equipped with round vent and rectangle venthole, pass through the first chock flap 4 and the second chock flap 5 Setting guarantee that exhaust gas enters the uniformity of solution purification room 2, and then improve the clarification time to reduce the speed that exhaust gas is passed through, And clean-up effect, 7 and 5-6 cm thick of the first active carbon layer of 12-16 cm thicks is equipped with inside the active carbon purifying room 3 Second active carbon layer 8,1 right side of absorption plant main body are fixedly connected with bracket 11, are equipped with lye on the bracket 11 and deposit Storage chamber 12 and electromechanical box 13 are equipped with waste liquid collecting box 14, the lye locker room 12 and waste liquid below the absorption plant main body 1 Collecting box 14 is connected to solution purification room 2 by hose, and hose between lye locker room 12 and solution purification room 2 and is given up Hose between liquid collecting box 14 and solution purification room 2 is mounted on solenoid valve 15, and 2 bottom of solution purification room is equipped with lye Concentration sensor 17,1 bottom of absorption plant main body are connect with into flue gas leading 19, and 1 bottom of absorption plant main body with into useless 19 junction of tracheae is equipped with filter screen 16 made of stainless steel material, filters out the impurity in exhaust gas by filter screen 16, prevents miscellaneous Matter accumulates in absorption plant main body 1, influences waste gas purification effect, and exhaust outlet 9 is equipped at the top of the absorption plant main body 1, and Be equipped with gaseous mass detection device 10 at exhaust outlet 9, the gaseous mass detection device 10 by content of nitrogen dioxide sensor and Sulfur dioxide concentration sensor, it is described electromechanics box 13 built in relay and single-chip microcontroller, one end of the single-chip microcontroller respectively with gas Quality detection device 10 and concentration of lye sensor 17 are electrically connected, and the other end and the relay input terminal of the single-chip microcontroller are electrically connected It connects, the relay output end is electrically connected with warning light 18 and solenoid valve 15 respectively, when concentration of lye sensor 17 detects lye Sodium hydroxide solution solubility in clean room 2 compares the preset value in concentration data and single-chip microcontroller, if concentration is lower than default When deficiency purifies exhaust gas, the solenoid valve 15 at 14 top of 12 bottom of lye locker room and waste liquid collecting box is opened by relay for value, New lye 6 is fed, and discarded lye is discharged into waste liquid collecting box 14 and is collected, described is specially sodium hydroxide solution, institute Stating concentration of lye sensor 17 is specially naoh concentration sensor, is equipped with warning light on the left of the absorption plant main body 1 18。

A kind of chemical industry tail gas proposed by the present invention purifies absorption plant application method, comprising the following steps:

A first in the lye and exhaust gas in solution purification room 2 sulfur dioxide, nitrogen dioxide, steam, foul smell and The reaction such as organic matter, eliminates these pollutants;

B passes through the first active carbon layer 7 and the second activity in active carbon purifying room 3 from the gas that solution purification room 2 is discharged Layer of charcoal 8 further absorbs remaining impurity, reaction residue, noxious material, organic matter etc. in chemical industry tail gas, and chemical industry tail gas is net Chemical conversion can discharge gas.

Working principle: detecting the sodium hydroxide solution solubility in solution purification room 2 by concentration of lye sensor 17, will be dense Degree is compared according to the preset value in single-chip microcontroller, if concentration is lower than preset value and opens alkali by relay when deficiency purifies exhaust gas The solenoid valve 15 of 12 bottom of liquid locker room and the top of waste liquid collecting box 14 feeds new lye 6, and discarded lye is discharged into useless It is collected in liquid collecting box 14, the concentration of polluted gas in the gas given off is detected by gaseous mass detection device 10, if Concentration be higher than single-chip microcontroller in preset value, then purify it is not up to standard, single-chip microcontroller to relay send signal, pass through relay control prompt Lamp issues prompt, reminds worker to check whether chemical industry tail gas purification absorption plant goes wrong in time, passes through 4 He of the first chock flap The setting of second chock flap 5 guarantees that exhaust gas enters the uniformity of solution purification room 2, Jin Erti to reduce the speed that exhaust gas is passed through High clarification time and clean-up effect.

The above is only the preferred embodiments of the present invention, and is not intended to limit the present invention in any form, Any simple modification made to the above embodiment according to the technical essence of the invention, equivalent variations and modification, belong to In the range of technical solution of the present invention.

Claims (8)

1. a kind of chemical industry tail gas purification absorption plant, including absorption plant main body (1), solution purification room (2) and active carbon are net Change room (3), it is characterised in that: the absorption plant main body (1) is had solution purification room (2) and the active carbon of lye (6) by storage Clean room (3) composition, the solution purification room (2) is located at absorption plant main body (1) bottom, and is equipped in solution purification room (2) First chock flap (4) and the second chock flap (5), first chock flap (4) and the second chock flap (5) are respectively equipped with circular vent Hole and rectangle venthole, internal the first active carbon layer (7) and 5-6 for being equipped with 12-16 cm thicks of the active carbon purifying room (3) The second active carbon layer (8) of cm thick, absorption plant main body (1) right side are fixedly connected with bracket (11), the bracket (11) lye locker room (12) and electromechanical box (13) are installed on, are equipped with waste liquid collecting box below the absorption plant main body (1) (14), the lye locker room (12) and waste liquid collecting box (14) are connected to by hose with solution purification room (2), and lye is deposited Hose between hose between storage chamber (12) and solution purification room (2) and waste liquid collecting box (14) and solution purification room (2) is equal It is equipped with solenoid valve (15), solution purification room (2) bottom is equipped with concentration of lye sensor (17).
2. a kind of chemical industry tail gas according to claim 1 purifies absorption plant, which is characterized in that the absorption plant main body (1) bottom is connect with into flue gas leading (19), and absorption plant main body (1) bottom is equipped with stainless steel with into flue gas leading (19) junction Filter screen made of material (16).
3. a kind of chemical industry tail gas according to claim 1 purifies absorption plant, which is characterized in that the absorption plant main body (1) top is equipped with exhaust outlet (9), and is equipped with gaseous mass detection device (10) at exhaust outlet (9), the gaseous mass detection dress (10) are set by content of nitrogen dioxide sensor and sulfur dioxide concentration sensor.
4. a kind of chemical industry tail gas according to claim 1 purifies absorption plant, which is characterized in that in the electromechanics box (13) Set relay and single-chip microcontroller, one end of the single-chip microcontroller respectively with gaseous mass detection device (10) and concentration of lye sensor (17) be electrically connected, the other end of the single-chip microcontroller is electrically connected with relay input terminal, the relay output end respectively with prompt Lamp (18) and solenoid valve (15) electrical connection.
5. a kind of chemical industry tail gas according to claim 1 purifies absorption plant, which is characterized in that the lye (6) is specific For sodium hydroxide solution.
6. a kind of chemical industry tail gas according to claim 1 purifies absorption plant, which is characterized in that the concentration of lye sensing Device (17) is specially naoh concentration sensor.
7. a kind of chemical industry tail gas according to claim 4 purifies absorption plant, which is characterized in that the absorption plant main body (1) left side is equipped with warning light (18).
8. a kind of exploitation right requires the application method of the purification absorption plant of chemical industry tail gas described in 1-7 any one, feature exists In, comprising the following steps:
A. first in the lye and exhaust gas in solution purification room (2) sulfur dioxide, nitrogen dioxide, steam, foul smell and The reaction such as organic matter, eliminates these pollutants;
B. it lives from the gas that solution purification room (2) are discharged by the first active carbon layer (7) and second in active carbon purifying room (3) Property layer of charcoal (8) further absorb remaining impurity, reaction residue, noxious material, organic matter etc. in chemical industry tail gas, by chemical industry tail Gas is cleaned into can discharge gas.
CN201811046097.4A 2018-09-07 2018-09-07 A kind of chemical industry tail gas purification absorption plant and its application method CN108993123A (en)

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Application Number Priority Date Filing Date Title
CN201811046097.4A CN108993123A (en) 2018-09-07 2018-09-07 A kind of chemical industry tail gas purification absorption plant and its application method

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Application Number Priority Date Filing Date Title
CN201811046097.4A CN108993123A (en) 2018-09-07 2018-09-07 A kind of chemical industry tail gas purification absorption plant and its application method

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2397221A1 (en) * 2001-08-09 2003-02-09 Rafael Vidal Fernandez Chemical-mechanical process to reduce the contamination caused by gases and products resulting from the combustion of fossil fuels, petroleum and its by-products
CN202962254U (en) * 2012-11-26 2013-06-05 沈阳市环境技术评估中心 Device for purifying harmful substances in smoke generated during boiler combustion
CN203556284U (en) * 2013-11-18 2014-04-23 郭俊 Flue gas cleaning, recycling and reusing system
CN205392101U (en) * 2016-03-01 2016-07-27 哈尔滨理工大学 Chemical engineering exhaust gas purifies absorbing device
CN207042213U (en) * 2017-05-24 2018-02-27 绍兴柯桥东茂织造有限公司 A kind of chemical fibre exhaust gas purification and treatment device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2397221A1 (en) * 2001-08-09 2003-02-09 Rafael Vidal Fernandez Chemical-mechanical process to reduce the contamination caused by gases and products resulting from the combustion of fossil fuels, petroleum and its by-products
CN202962254U (en) * 2012-11-26 2013-06-05 沈阳市环境技术评估中心 Device for purifying harmful substances in smoke generated during boiler combustion
CN203556284U (en) * 2013-11-18 2014-04-23 郭俊 Flue gas cleaning, recycling and reusing system
CN205392101U (en) * 2016-03-01 2016-07-27 哈尔滨理工大学 Chemical engineering exhaust gas purifies absorbing device
CN207042213U (en) * 2017-05-24 2018-02-27 绍兴柯桥东茂织造有限公司 A kind of chemical fibre exhaust gas purification and treatment device

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