CN102794059A

CN102794059A - Method for purifying paroxysmal intermittent exhaust smoke

Info

Publication number: CN102794059A
Application number: CN2012103303651A
Authority: CN
Inventors: 余波; 黄正文; 柯玲; 史凯; 第宝锋; 张斌; 李眉眉
Original assignee: MIANYANG TEACHERS COLLEGE
Current assignee: MIANYANG TEACHERS COLLEGE
Priority date: 2012-09-10
Filing date: 2012-09-10
Publication date: 2012-11-28

Abstract

The invention relates to a method for purifying paroxysmal intermittent exhaust smoke, belonging to the separation class (B01D) of a physical or chemical method. According to the method, the quantity of treated smoke is regulated by adopting a regulating bag in a smoke purification process, so that the smoke not only can be quickly and efficiently collected in a short time without the limit of the filter air speed of a bag-type dust collector, but also the smoke which is quickly and efficiently collected in a short time can enter the bag-type dust collector through the designs of the regulating bag and inlet/outlet regulating valves in the modes of time delay, equal sharing and speed reduction; and the characteristic of paroxysmal intermittent exhaust of the smoke is sufficiently utilized, and the model of the matched bag-type dust collector is greatly reduced, so that the one-time investment cost and the operating cost of the bag-type dust collector with a model selected after the smoke is regulated by the regulating bag are greatly reduced.

Description

The method of a kind of paroxysmal intermittent discharge gas cleaning

(1) technical field: the present invention relates to the method for a kind of paroxysmal intermittent discharge gas cleaning, belong to the separation class (B01D) of physics or chemical method.

(2) background technology:, have one type of production technology can produce a kind of paroxysmal intermittent discharge flue gas in process of production in the commercial production field.Be generally 7-15 minute as each hole of coke oven time of the discharging of the coke of coalingging; This course of work can produce a large amount of black smokes, tobacco and dust; The sulfur dioxide, carbon monoxide etc. that wherein contain unburnt carbon granule, the raw coke oven gas that sets off an explosion easily, hydrogen and environment had serious harm, therefore very important to its collection, conveying, processing.At present domestic this type flue dust is not effectively handled mostly; Even what have handles; Also because moment exhaust gas volumn big, wind speed is high, not only energy consumption is high, investment is big, also the coupling of sack cleaner is had higher requirement; Its Technological Economy comprehensive benefit is poor, is unfavorable for marketing.

(3) summary of the invention: the method for a kind of paroxysmal intermittent discharge gas cleaning that the present invention proposes, can guarantee the gas cleaning effect, practiced thrift one-time investment cost and operating cost again.Its technical scheme is following:

1. the method (Fig. 1) of paroxysmal intermittent discharge gas cleaning is located to establish air-suction cover 1 in the fume emission source, through big blower fan 2 flue gas is collected through flue 8 and is regulated bag 4; And on flue 8, establish control valve 3 and control valve 5 respectively, the unlatching through control valve 3 and control valve 5, close adjustment and realize that flue gas in collection, the storage of regulating bag 4, is characterized in that this method also comprises the following steps:

1) air-suction cover 1, big blower fan 2, flue 8, adjusting bag 4, control valve 3, control valve 5 store regulating system with the collection conveying that Pressure gauge 10 has been formed flue gas.

2) adjusting bag 4 (Fig. 2) are made up of gas approach 4.1, an adjusting bag shell 4.2, adjusting bag inner container 4.3, an adjusting bag inner chamber 4.4, exhanst gas outlet 4.5.

3) regulating a bag shell 4.2 is concrete prefabricated finished product urban water supply and sewerage pipeline or metal, nonmetal being made, and can be square, and rectangle also can be circular.

4) regulating bag inner container 4.3 is processed by scalable, wear-resisting soft cloth bag.

5) regulate the volume of the design volume of bag inner chamber 4.4 more than or equal to a kind of paroxysmal intermittent discharge flue gas that produces in process of production.

6) power designs of big blower fan 2 should guarantee that air-suction cover 1 collects the needs of flue gas fully.

2. see Fig. 1, Fig. 2, connect flue 8, and be connected with sack cleaner 6, little blower fan 7 after on flue 8, establishing control valve 5 at the exhanst gas outlet of regulating bag 4 4.5.It is characterized in that:

1) sack cleaner 6 and little blower fan 7, control valve 5, flue 8 have been formed flue gas purification system.

2) power designs of little blower fan 7 should be complementary with sack cleaner 6.

Beneficial effect of the present invention:

I. the present invention adopts in the process of gas cleaning and regulates the exhaust gas volumn that bag is regulated processing; Can be under the restriction that does not receive the sack cleaner filtration velocity in short-term high-speed and high-efficiency collect flue gas; Can share the flue gas of high-speed and high-efficiency collection in short-term equally deceleration regime with time-delay through the design of regulating bag and import and export control valve again and get into sack cleaner; Make full use of the characteristics of flue gas paroxysmal intermittent discharge; Reduced the model of the sack cleaner of coupling greatly, the sack cleaner that makes type selecting after overregulating bag to regulate flue gas is than regulating without regulating bag that the flue gas throughput per hour of sack cleaner of flue gas is little, filtration velocity is low.Under the prerequisite of economizing on the use of funds greatly, can guarantee dust removing effects like this.

Ii. regulate bag and directly adopt concrete prefabricated finished product urban water supply and sewerage pipeline to be made, have the advantages that one-time investment is few, operating cost is low; Regulate bag and can be layed in according to on-site actual situations and undergroundly be connected with the city planting ductwork system, flexible operation, easy, land occupation not again.

Iii. after dust flowed into and regulates bag, because the cross section increases suddenly, flue gas flow rate reduced greatly, made massive grit be able to slow speed and dropped down onto the bottom of regulating bag, had and necessarily collected the dirt effect in advance, had further improved efficiency of dust collection.

(4) description of drawings:

Fig. 1 technology is always schemed: 1. air-suction cover, 2. big blower fan, 3. control valve, 4. regulate bag, 5. control valve, 6. sack cleaner, 7. little blower fan, 8. flue, 9. floss hole, 10. Pressure gauge.

Fig. 2 adjuster profile: 4.1 gas approach, 4.2 are regulated bag shell, 4.3 and are regulated bag inner container, 4.4 adjusting bag inner chambers, 4.5 exhanst gas outlets.

(5) specific embodiment:

The course of work:

See Fig. 1, Fig. 2

1) opens big blower fan 2 and control valve 3, close control valve 5 and little blower fan 7, through air-suction cover 1 flue gas is collected to get into through flue 8 and regulate bag inner chamber 4.4,, regulate bag inner container 4.3 and enlarge along with the entering of flue gas.

2) observe the variation of Pressure gauge 10 in the process of boosting, when Pressure gauge 10 reach setting on close big blower fan 2 and control valve 3 in limited time.

3) open control valve 5 and little blower fan 7, flue gas is got into sack cleaner 6 through flue 8, through sack cleaner 6 process purified treatment, qualified discharge.

4) observe the variation of Pressure gauge 10, reach the following little blower fan 7 and the control valve 5 of closing of setting when Pressure gauge 10 in limited time in the step-down process.So far, just accomplished the overall process of first collection, conveying, storage, adjusting, purified treatment, qualified discharge.

5) analogize in proper order and back and forth begin workflow for the second time.

Claims

1. the method for paroxysmal intermittent discharge gas cleaning is located to establish air-suction cover (1) in the fume emission source, through big blower fan (2) flue gas is collected through flue (8) and is regulated bag (4); And on flue (8), establish control valve (3) and control valve (5) respectively, the unlatching through control valve (3) and control valve (5), close adjustment and realize that flue gas in collection, the storage of regulating bag (4), is characterized in that this method also comprises the following steps:

A. air-suction cover (1), big blower fan (2), flue (8), adjusting bag (4), a control valve (3), control valve (5) store regulating system with the collection conveying that Pressure gauge (10) has been formed flue gas;

B. adjusting bag (4) is made up of gas approach (4.1), an adjusting bag shell (4.2), adjusting bag inner container (4.3), an adjusting bag inner chamber (4.4), exhanst gas outlet (4.5);

C. regulating a bag shell (4.2) and be concrete prefabricated finished product urban water supply and sewerage pipeline or metal, nonmetal being made, can be square, and rectangle also can be circular;

D. regulating bag inner container (4.3) is processed by scalable, wear-resisting soft cloth bag;

E. regulate the volume of the design volume of bag inner chamber (4.4) more than or equal to a kind of paroxysmal intermittent discharge flue gas that produces in process of production;

The power designs of F. big blower fan (2) should guarantee that air-suction cover (1) collects the needs of flue gas fully.

2. the method for paroxysmal intermittent discharge gas cleaning connects flue (8) at the exhanst gas outlet (4.5) of regulating bag (4), and is connected with sack cleaner (6), little blower fan (7) after on flue (8), establishing control valve (5); It is characterized in that:

A. sack cleaner (6) has been formed flue gas purification system with little blower fan (7), control valve (5), flue (8);

The power designs of B. little blower fan (7) should be complementary with sack cleaner (6).