KR200320159Y1 - Device for sensing the damaged filter bag of dust collector - Google Patents

Device for sensing the damaged filter bag of dust collector Download PDF

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Publication number
KR200320159Y1
KR200320159Y1 KR20-1999-0008149U KR19990008149U KR200320159Y1 KR 200320159 Y1 KR200320159 Y1 KR 200320159Y1 KR 19990008149 U KR19990008149 U KR 19990008149U KR 200320159 Y1 KR200320159 Y1 KR 200320159Y1
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South Korea
Prior art keywords
pulverized coal
pipe
ventilation
filter bag
valve
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KR20-1999-0008149U
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Korean (ko)
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KR20000020766U (en
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김용세
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주식회사 포스코
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Priority to KR20-1999-0008149U priority Critical patent/KR200320159Y1/en
Publication of KR20000020766U publication Critical patent/KR20000020766U/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0084—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours provided with safety means
    • B01D46/0095—Means acting upon failure of the filtering system, e.g. in case of damage of the filter elements; Failsafes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0084—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours provided with safety means
    • B01D46/0091—Including arrangements for environmental or personal protection
    • B01D46/0093—Including arrangements for environmental or personal protection against fire or explosion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
    • B01D46/023—Pockets filters, i.e. multiple bag filters mounted on a common frame
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/42—Auxiliary equipment or operation thereof
    • B01D46/4254—Allowing or improving visual supervision, e.g. lamps, transparent parts, windows

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Toxicology (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

본 고안은 미분탄을 제조하는 미분탄 제조설비의 집진기에서 미분탄을 포집하는 필터백의 파손, 홀발생을 조기에 검지할수 있도록 개선한 집진기의 필터백 파손검지장치에 관한 것이다.The present invention relates to a filter bag breakage detection device of the dust collector which is improved to detect the breakage and hole generation of the filter bag to collect the pulverized coal in the dust collector of the pulverized coal manufacturing equipment for producing pulverized coal.

본 고안은 필터백(5)의 파손시 미분탄이 역류되도록 상기 펄싱배관(21)과 연통연결되고, 역류된 미분탄유로를 개폐하는 제 1차단밸브(112)를 갖는 역류배관(111)과, 개방된 제 1차단밸브(112)를 통해 유입된 미분탄을 육안으로 할수 있도록 투명캡(113)을 설치한 검지부(110);와, 상기 투명캡(113)으로 질소가스를 공급할수 있도록 질소가스공급관(7a)과 연통연결되는 환기관(121)과, 상기 투명캡(113)과 배출관(16)사이에 설치되어 환기된 질소가스와 미분탄을 배출하는 환기배출관(123) 및 상기 환기관(121)의 환기밸브(122)의 개폐작동에 따라 개폐작동되는 제 2차단밸브(124)를 상기 환기배출관(123)에 설치한 환기부(120);를 포함하는 집진기의 필터백 파손검지장치를 제공한다.The present invention is in communication with the pulsing pipe 21 so that the pulverized coal flows back when the filter bag 5 is damaged, and the back flow pipe 111 having the first shut-off valve 112 for opening and closing the flow of the pulverized coal flow path, and is opened. Detecting unit 110 is provided with a transparent cap 113 so that the pulverized coal introduced through the first shut-off valve 112 to the naked eye; and a nitrogen gas supply pipe to supply nitrogen gas to the transparent cap 113 ( 7a) and the ventilation pipe 121 is connected between the communication, the transparent cap 113 and the discharge pipe 16 is installed between the ventilation exhaust pipe 123 for discharging the nitrogen gas and pulverized coal and the ventilation valve of the ventilation pipe 121 Provides a filter bag damage detection device of a dust collector comprising a; ventilation unit 120 is installed in the ventilation discharge pipe 123, the second shut-off valve 124 is opened and closed according to the opening and closing operation of the 122.

Description

집진기의 필터백 파손검지장치{DEVICE FOR SENSING THE DAMAGED FILTER BAG OF DUST COLLECTOR}Filter Bag Damage Detection Device of Dust Collector {DEVICE FOR SENSING THE DAMAGED FILTER BAG OF DUST COLLECTOR}

본 고안은 미분탄을 제조하는 미분탄 제조설비의 집진기에서 미분탄을 포집하는 필터백의 파손, 홀발생을 조기에 검지할수 있도록 개선한 집진기의 필터백 파손검지장치에 관한 것이다.The present invention relates to a filter bag breakage detection device of the dust collector which is improved to detect the breakage and hole generation of the filter bag to collect the pulverized coal in the dust collector of the pulverized coal manufacturing equipment for producing pulverized coal.

일반적으로 제철소의 미분탄 제조설비는 도 1(a)에 도시한 바와같이, 콜호퍼(coal hopper)(11)와 연결된 급탄기(10)로부터 파쇄기(2)로 공급된 콜(석탄)을 배가스팬(1)에서 고온(200℃이상)의 고로 열풍로배가스를 이용하여 상기 파쇄기(2)내에서 건조함과 동시에 콜을 파쇄하여 미분탄을 제조하는 것이다.In general, the pulverized coal manufacturing equipment of the steel mill exhausts the coal (coal) supplied to the crusher 2 from the coal feeder 10 connected to the coal hopper 11 as shown in FIG. In (1), pulverized coal is produced by drying in the crusher 2 using blast furnace hot stove exhaust gas of high temperature (above 200 ° C) and crushing the call.

이러한 콜건조와 파쇄과정에서 상기 파쇄기(2)의 출구 온도는 80℃를 유지하기 위해서 열풍로 배가스의 유량을 상기 배가스팬(1)에서 자동으로 조절하며, 상기 파쇄기(2)내의 파쇄된 콜을 건조시킨 배가스는 제조된 미분탄과 더불어 상기 파쇄기(2)와 집진기(3)사이를 연결하는 미분탄이송배관(26)을 거쳐 상기 집진기(3)내부로 수송된다. 상기 집진기(3)의 본체(3a)내부로 수송된 미분탄은 다수개의 집진백에 부착되어 회수되고, 배가스는 청정한 상태로 대기로 방출된다.In the call drying and crushing process, the outlet temperature of the crusher 2 automatically adjusts the flow rate of the hot stove exhaust gas in the exhaust gas fan 1 to maintain 80 ° C., and the crushed call in the crusher 2 is controlled. The dried flue gas is transported into the dust collector 3 through the pulverized coal transfer pipe 26 connecting the crusher 2 and the dust collector 3 together with the pulverized coal produced. The pulverized coal transported into the main body 3a of the dust collector 3 is attached to and recovered from a plurality of dust collection bags, and the exhaust gas is discharged to the atmosphere in a clean state.

여기서 미분탄제조설비에 채용되는 상기 집진기(3)는 다른 공해방지설비적 성격을 갖는 집진기와 다르게 미분탄을 포집하여 고로에서 이용할수 있도록 하는 공정용 집진기이다.Here, the dust collector (3) employed in the pulverized coal manufacturing facility is a process dust collector for collecting pulverized coal and making it available in a blast furnace, unlike a dust collector having other pollution prevention facility characteristics.

즉, 공해방지설비에 주로 채용되는 집진기는 도 1(b)에 도시한 바와같이, 먼지 및 이물질을 집진하는 필터백을 내부에 설치한 집진기본체(3b)의 후공정에 흡입팬(1a)을 연통설치함으로서, 구동되는 상기 흡입팬(1a)의 흡입력에 의해 상기 집진기본체(3b)내로 전공정에서 주로 발생하는 먼지 및 이물질을 공기와 더불어 강제 흡입하여 상기 집진기본체(3b)내로 강제유입한 다음, 내부에 설치된 상기 필터백으로서 먼지 및 이물질을 여과하고, 걸러진 공기는 상기 흡입팬(1a)을 통과하여 외부로 배출하는 것이다. 이에 따라, 상기 필터백의 파손이 발생하더라도 집진기본체(3b)내에서의 압력변화는 거의 없으며, 필터백이 파손된 상태에서도 집진설비의 작동이 원할하게 이루어진다.That is, the dust collector mainly employed in the pollution prevention equipment, as shown in Figure 1 (b), the suction fan (1a) in the post-process of the dust collecting base body (3b) having a filter bag for collecting dust and foreign matter therein By communicating with each other, by the suction force of the suction fan (1a) to be driven into the dust collecting body (3b) and forced to suction the dust and foreign substances mainly generated in the previous process with the air into the dust collecting body (3b) As the filter bag installed therein, dust and foreign substances are filtered, and filtered air is discharged to the outside through the suction fan 1a. Accordingly, even when the filter bag is broken, there is almost no pressure change in the dust collecting body 3b, and even when the filter bag is broken, the dust collecting equipment is smoothly operated.

반면에, 본 고안이 적용되는 집진기(3)는 도 1(a)에 도시한 바와같이, 미분탄을 포집하는 필터백(5)이 내장된 집진기본체(3a)의 전공정에 설치된 배가스팬(1)을 연통설치함으로서, 열풍로배가스와 미분탄을 미분탄이송배관(26)을 통하여 집진기본체(3a)내로 강제로 불어 유입시킨 다음, 상기 필터백(5)에 미분탄을 포집하고, 청정한 공기는 배출관(16)을 통하여 외부로 배출하는 것이다.On the other hand, the dust collector (3) to which the present invention is applied has an exhaust gas fan (1) installed in the entire process of the dust collecting body (3a) in which the filter bag (5) for collecting pulverized coal is incorporated, as shown in FIG. ), The hot blast flue gas and the pulverized coal are forced to blow into the dust collecting body 3a through the pulverized coal transfer pipe 26, and then the pulverized coal is collected in the filter bag 5, and the clean air is discharged from the pipe ( It is discharged to the outside through 16).

그리고, 상기 필터백(5)에 부착된 미분탄을 회수하기 위하여 도 2에 도시한 바와같이, 다이아프램밸브(4)의 전자코일(25)의 순간적인 전기적인 여자로 1회에 다수개씩 집진기본체(3a)에 설치된 펄싱배관(21)에 질소를 공급한다. 질소가스가 상기 펄싱배관(21)을 통하여 집진기본체(3a)내로 공급되면 상기 필터백(5)에 부착되었던 미분탄이 질소압력에 의해 하부로 탈락되어 저장호퍼(8)에 저장된다.And, as shown in Figure 2 to recover the pulverized coal attached to the filter bag (5), the momentary electrical excitation of the electromagnetic coil 25 of the diaphragm valve (4) a plurality of dust collecting body at a time Nitrogen is supplied to the pulsing piping 21 provided in (3a). When nitrogen gas is supplied into the dust collecting body 3a through the pulsing pipe 21, the pulverized coal attached to the filter bag 5 is dropped down by nitrogen pressure and stored in the storage hopper 8.

도 2에서 미설명부호 7은 질소가스를 공급하는 질소가스헤드관이고, 14는 질소가스공급흐름을 제어하는 개폐밸브이며, 15는 질소가스노즐이다.In FIG. 2, reference numeral 7 denotes a nitrogen gas head tube for supplying nitrogen gas, 14 is an on-off valve for controlling a nitrogen gas supply flow, and 15 is a nitrogen gas nozzle.

한편, 상기 필터백(5)의 일부가 손상되거나 홀(12)이 발생된 상태에서 상기와 같은 미분탄 수거작업이 이루어지면, 집진기본체(3a)내부는 연속적으로 공급되는 열풍로배가스와 미분탄의 유입에 의해서 내부압력이 증감된 상태이기 때문에, 고압질소가스의펄싱작업이 이루어지 않을 때 상기 필터백(5)의 손상부위나 홀(12)을 통해 미분탄이 상기 펄싱배관(21)으로 역류하고, 상기 필터백(5)이 손상된 상태로 그대로 미분탄 포집작업을 계속 수행하기 곤란한 문제점이 있었다.On the other hand, when the pulverized coal collection operation is performed in a state where a part of the filter bag 5 is damaged or the hole 12 is generated, the inside of the dust collecting body 3a is continuously supplied with hot blast flue gas and pulverized coal inflow. Since the internal pressure is increased and decreased by the above, when the high pressure nitrogen gas pulsing operation is not performed, pulverized coal flows back to the pulsing pipe 21 through the damaged part or the hole 12 of the filter bag 5, There was a problem that it is difficult to carry out the pulverized coal collecting operation as it is while the filter bag 5 is damaged.

따라서, 미분탄 제조설비에 채용되는 집진기(3)의 필터백(5)이 손상여부를 판단하는 종래의 방법은, 외부로 배출되는 배가스중에 미분탄이 함유된 상태로 배출관(16)을 통하여 대기중으로 방출되는 것을 육안으로 확인해야만 하기 때문에, 미분탄이 배가스와 더불어 다량 방출되기 전까지는 확인 불가능하였다.Therefore, the conventional method of determining whether the filter bag 5 of the dust collector 3 employed in the pulverized coal production facility is damaged is discharged into the atmosphere through the discharge pipe 16 in the state in which the pulverized coal is contained in the exhaust gas discharged to the outside. Since it had to be confirmed visually, it could not be confirmed until a large amount of pulverized coal was released along with the flue gas.

미분탄의 다량방출이 확인될때에는 미분탄제조설비의 가동을 일시 중단하고, 손상된 필터백(5)의 점검 및 교체를 신속히 수행하여야 하나 고온의 배가스를 이용하는 설비특성상 신속한 가동중지가 어렵고, 비정상적으로 설비가동이 중지될 경우에는 상기 집진기본체(3a)내로 유입되는 100℃ 이상의 열풍로배가스에 의해서 온전한 필터백(5)을 열화시켜 파손을 가중시키거나, 이송배관내에 고온 및 고압의 조건을 형성하여 화재나 폭발등과 같은 대형사고를 발생시킬 우려가 매우 높았다.When a large amount of pulverized coal is confirmed, it is necessary to suspend the operation of the pulverized coal manufacturing equipment and to promptly inspect and replace the damaged filter bag (5). If this is stopped, the intact filter bag 5 is deteriorated by the hot blast exhaust gas flowing into the dust collecting body 3a at 100 ° C. or higher, or the damage is increased, or conditions of high temperature and high pressure are formed in the conveying pipe to prevent fire or There was a high possibility of causing a major accident such as an explosion.

또한, 포집되어야 할 미분탄의 대기방출로 인하여 미분탄의 회수율을 감소시켜 고로의 작업생산성을 저하시키고, 외부로 방출되는 미분탄에 의하여 대기가 오염되는 환경상의 문제점도 있었다.In addition, due to the air discharge of the pulverized coal to be collected, reducing the recovery rate of pulverized coal to reduce the work productivity of the blast furnace, there was also an environmental problem that the air is polluted by the pulverized coal discharged to the outside.

따라서, 본 고안은 상기와 같은 문제점을 해결하기 위해서 안출된 것으로서, 그 목적은, 미분탄 제조설비의 집진기에서 미분탄을 포집하는 필터백이 파손되거나홀이 발생할 때 펄싱배관으로 역류하는 미분탄을 확인하여 필터백의 파손 및 홀발생을 조기에 간편하고, 신속하게 검지할수 있는 집진기의 필터백 파손검지장치를 제공하고자 한다.Accordingly, the present invention has been made to solve the above problems, the object of the filter bag to check the pulverized coal flow back to the pulsing pipe when the filter bag collecting the pulverized coal in the dust collector of the pulverized coal production equipment breakage or hole occurs An object of the present invention is to provide a filter bag breakage detection device of a dust collector that can detect breakage and hole generation early and easily and quickly.

도 1(a)는 본 고안이 적용되는 일반적인 미분탄제조설비의 집진기를 도시한 개락도,Figure 1 (a) is an open view showing a dust collector of the general pulverized coal manufacturing equipment to which the present invention is applied,

도 1(b)는 환경방지설비에 적용되는 집진기를 도시한 개략도,1 (b) is a schematic diagram showing a dust collector applied to the environmental protection equipment,

도 2는 본 고안이 적용된 집진기에서 미분탄이 역류하는 상태도,Figure 2 is a state in which the pulverized coal backflow in the dust collector to which the present invention is applied,

도 3은 본 고안에 따른 집진기의 필터백 파손검지장치를 도시한 구성도,Figure 3 is a block diagram showing a filter bag damage detection device of the dust collector according to the present invention,

도 4는 본 고안에 따른 집진기의 필터백 파손검지장치의 설치상태도.Figure 4 is an installation state of the filter bag damage detection device of the dust collector according to the present invention.

* 도면의 주요부분에 대한 부호의 설명** Explanation of symbols for the main parts of the drawings *

1 ........ 배가스팬 2 ........ 파쇄기1 ........ flue gas fan 2 ........ crusher

5 ........ 필터백 21 ....... 펄싱배관5 ........ Filter bag 21 ....... Pulsing piping

16 ..... 배출관 111 ...... 역류배관16 ..... discharge pipe 111 ......

112 .... 제 1차단밸브 113 ...... 투명캡112 .... 1st shutoff valve 113 ...

121 .... 환기관 122 ...... 환기배브121 .... Ventilation pipe 122 ...

123 .... 환기배출관 124 ...... 제 2차단밸브123 .... Ventilation exhaust pipe 124 ... 2nd shutoff valve

상기 목적을 달성하기 위한 기술적인 구성으로서 본 고안은,The present invention as a technical configuration for achieving the above object,

파쇄기로 공급된 콜을 배가스팬의 열풍로배가스로서 건조하고, 파쇄된 미분탄과 열풍로배가스를 필터백이 내장된 집진기본체로 강제공급하며, 상기 필터백에 부착된 미분탄을 펄싱배관으로부터 공급되는 질소가스의 압력으로서 탈락시켜 회수하는 미분탄제조설비에 있어서,The call supplied to the crusher is dried as the hot stove exhaust gas of the exhaust gas fan, and the pulverized pulverized coal and the hot stove exhaust gas are forcibly supplied to the dust collecting base having the filter bag, and the pulverized coal attached to the filter bag is supplied from the pulsing pipe. In the pulverized coal production equipment which is eliminated and recovered as the pressure of

상기 필터백의 파손시 미분탄이 역류되도록 상기 펄싱배관과 연통연결되고, 역류된 미분탄유로를 개폐하는 제 1차단밸브를 갖는 역류배관과, 개방된 제 1차단밸브를 통해 유입된 미분탄을 육안으로 할수 있도록 투명캡을 설치한 검지부;와,In order to visually see the pulverized coal introduced through the first flow shutoff pipe having a first shutoff valve connected to the pulsing pipe so as to flow the pulverized coal backflow when the filter bag is damaged, and having a first shutoff valve opened and closed. Detecting unit with a transparent cap; Wow,

상기 투명캡으로 질소가스를 공급할수 있도록 질소가스공급관과 연통연결되는 환기관과, 상기 투명캡과 배출관사이에 설치되어 환기된 질소가스와 미분탄을 배출하는 환기배출관 및 상기 환기관의 환기밸브의 개폐작동에 따라 개폐작동되는 제 2차단밸브를 상기 환기배출관에 설치한 환기부;를 포함함을 특징으로 하는 집진기의 필터백 파손검지장치를 마련함에 의한다.Ventilation pipe connected to the nitrogen gas supply pipe so as to supply the nitrogen gas to the transparent cap, and installed between the transparent cap and the discharge pipe, the ventilation discharge pipe for discharging the nitrogen gas and pulverized coal and the opening and closing operation of the ventilation valve of the ventilation pipe According to the present invention to provide a filter bag damage detection device of the dust collector, characterized in that it comprises a; ventilation unit installed in the ventilation discharge pipe to the second shut-off valve to be opened and closed.

이하, 본 고안에 따른 바람직한 실시예를 첨부된 도면에 따라 보다 상세히 설명한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 3은 본 고안에 따른 집진기의 필터백 파손검지장치를 도시한 구성도이고,도 4는 본 고안에 따른 집진기의 필터백 파손검지장치의 설치상태도이다.Figure 3 is a block diagram showing a filter bag damage detection device of the dust collector according to the present invention, Figure 4 is an installation state diagram of the filter bag damage detection device of the dust collector according to the present invention.

본 고안에 따른 집진기의 필터백 파손검지장치(100)는 도 3과 4에 도시한 바와같이, 집진기본체(3a)의 필터백(5)에 부착된 미분탄을 강제로 탈락시키기 위해서 고압의 질소가스가 공급되는 펄싱배관(21)에 연통연결되는 것으로서, 이러한 장치(100)는 검지부(110)와 환기부(120)로 이루어져 있다.The filter bag breakage detection device 100 of the dust collector according to the present invention has a high pressure nitrogen gas in order to forcibly remove the pulverized coal attached to the filter bag 5 of the dust collecting body 3a as shown in FIGS. 3 and 4. As it is connected to the pulsing pipe 21 is supplied, such a device 100 is composed of a detection unit 110 and the ventilation unit 120.

즉, 상기 필터백(5)의 파손시 상기 집진기본체(3a)내의 압력에 의해 상기 펄싱배관(21)으로 역류되는 미분탄을 간편하고, 용이하게 검지할수 있도록 갖추어지는 상기 검지부(100)는 상기 펄싱배관(21)의 외부면에 일단이 연통연결되어 역류된 미분탄이 유입되는 역류배관(111)을 갖추고, 그 타단부에는 역류되어 유입되는 미분탄의 유로를 개폐할수 있도록 제 1차단밸브(112)를 교체가능하도록 플랜지(111a)(112a)로서 연결구성하며, 상기 제 1차단밸브(112)의 타단에는 상기 역류배관(111), 제 1차단밸브(112)를 통해 역류유입된 미분탄을 용이하게 육안으로 확인할수 있도록 유리와 같은 투명소재로 이루어진 투명캡(113)을 교체가능하도록 플랜지(112b)(113a)로서 연결구성한다.That is, the detection unit 100 is provided to easily and easily detect the pulverized coal flowing back to the pulsing pipe 21 by the pressure in the dust collecting body 3a when the filter bag 5 is damaged. One end is connected to the outer surface of the pipe 21 and has a backflow pipe 111 into which the pulverized coal flowed back is introduced, and at the other end thereof, the first shutoff valve 112 is opened to open and close the flow path of the pulverized coal flowed back. It is connected to the flange 111a and 112a so as to be replaceable, and the other end of the first shutoff valve 112 easily visually checks the pulverized coal flowed in through the backflow pipe 111 and the first shutoff valve 112. It is configured to connect as a flange (112b) (113a) to replace the transparent cap 113 made of a transparent material such as glass so as to be confirmed.

그리고, 파손된 필터백(5)의 교체후 상기 투명캡(113)을 환기시켜 청소하는 환기부(120)는 상기 투명캡(112)으로 고압의 질소가스을 공급하여 파손검지시 역류되어 잔류하는 미분탄을 상기 투명캡(113)내부로부터 환기시킬수 있도록 질소가스공급관(7a)과 일단이 연통연결되고, 상기 투명캡(113)과 차단밸브(112)사이의 관부재에 타단이 연통연결되는 환기관(121)을 갖추고, 상기 환기관(121)에는 환기용 질소가스의 흐름을 제어할수 있도록 환기밸브(122)를 설치한다.After the replacement of the damaged filter bag 5, the ventilation unit 120 for ventilating and cleaning the transparent cap 113 is supplied with high-pressure nitrogen gas to the transparent cap 112 to backflow when the damage is detected and remains pulverized coal. One end is connected to the nitrogen gas supply pipe (7a) and the other end is connected to the pipe member between the transparent cap 113 and the shutoff valve 112 so as to ventilate from the inside of the transparent cap (113) 121 ), The ventilation pipe 121 is installed with a ventilation valve 122 to control the flow of the nitrogen gas for ventilation.

또한, 상기 투명캡(113)과 집진기본체(3a)의 배출관(16)사이에는 환기용질소가스에 의하여 환기되는 미분탄과 질소가스를 상기 배출관(16)으로 배출할수 있도록 환기배출관(123)을 연통설치하고, 상기 환기배출관(123)에는 환기밸브(122)의 개폐작동과 동일하게 개폐작동되는 제 2차단밸브(124)를 설치함으로서, 상기 필터백(5)의 파손검지작업시 상기 제 2차단밸브(124)는 닫혀져 역류된 미분탄을 상기 투명캡(113)에 머물도록 하여 미분탄의 육안확인을 가능하게 하고, 환기작업시 상기 환기밸브(122)와 더불어 개방되어 잔류하는 미분탄을 환기용 질소가스와 함께 배출시켜 상기 투명캡(113)내부를 환기청소할수 있는 것이다.In addition, between the transparent cap 113 and the discharge pipe 16 of the dust collecting base 3a communicates with the ventilation discharge pipe 123 to discharge the pulverized coal and nitrogen gas ventilated by the nitrogen gas for ventilation to the discharge pipe 16. And a second shut-off valve 124 that is opened and closed in the same manner as the opening and closing operation of the ventilation valve 122 in the ventilation discharge pipe 123, so that the second blocking during the damage detection operation of the filter bag 5 is performed. The valve 124 is closed so that the backflow of the pulverized coal remains in the transparent cap 113 to visually check the pulverized coal, and the pulverized coal remaining after the pulverized coal is opened together with the ventilation valve 122 during the ventilation operation. By discharging with it will be able to clean the inside of the transparent cap (113).

상술한 바와같은 구성을 갖는 본 고안에 따른 연마칩 자동분리장치의 작용 및 효과를 설명하면 다음과 같다.Referring to the operation and effect of the polishing chip automatic separation device according to the present invention having the configuration as described above are as follows.

먼저, 파쇄기(2)에서 콜을 갈아 미분탄으로 제조하기 위해서 소비되는 열을 배가스팬(1)으로서 공급하고, 제조된 미분탄은 고온의 열풍로배가스와 더불어 집진기(3)까지 수송되며, 미분탄 제조량에 따라 상기 집진기(3)내로 유입되는 열풍로배가스와 미분탄에 의한 부하는 증감이 반복되고, 상기 미분탄은 집진기본체(3a)내의 필터백(5)에 부착된다.First, the heat consumed in order to grind the coal in the crusher 2 into pulverized coal is supplied as the exhaust gas fan 1, and the pulverized coal produced is transported to the dust collector 3 together with the high temperature hot blast flue gas, Accordingly, the load by the hot blast flue gas introduced into the dust collector 3 and the pulverized coal are increased and decreased, and the pulverized coal is attached to the filter bag 5 in the dust collecting body 3a.

그리고, 부착된 미분탄은 다이아프램밸브(4)의 전자코일(25)의 순간적인 여자로 질소가스공급관(7a)의 개폐밸브(14)가 개방된 상태에서 1회에 4개씩 펄싱배관921)으로 질소가스가 공급되어 순차적으로 순환되고, 공급된 고압의 질소가스에 의해서 필터백(5)에 부착된 미분탄이 탈락되어 저장호퍼(8)에 저장되는데, 이러한 과정에서, 상기 필터백(5)이 파손되거나, 파공부인 홀(12)이 발생하더라고상기 전자코일(25)에 전기적인 여자가 이루어져 고압의 질소가스가 펄싱배관(21)내에 펄싱되고 있는 동안은 상기 펄싱배관(21)으로 미분탄의 역류가 이루어지지 않는다.Then, the pulverized coal is attached to the pulsing pipe 921 at a time by the instantaneous excitation of the electromagnetic coil 25 of the diaphragm valve 4 with the on / off valve 14 of the nitrogen gas supply pipe 7a open. Nitrogen gas is supplied and circulated sequentially, and the pulverized coal attached to the filter bag 5 is dropped by the supplied high pressure nitrogen gas and stored in the storage hopper 8. In this process, the filter bag 5 is Even if the hole 12, which is broken or breaks, is generated, electrical excitation is generated in the electromagnetic coil 25, and while the high-pressure nitrogen gas is being pulsed in the pulsing pipe 21, the pulverized coal 21 is discharged to the pulsing pipe 21. No backflow occurs.

그러나, 상기 다이아프램밸브(4)의 전자코일(25)의 순간적인 여자시간이 끝나고, 다른 다이아프램밸브(4)가 동작하는 사이클동안에는 질소가스이 고압이 상기 펄싱배관에 영향을 주지 않고, 열풍로배가스와 미분탄의 유입에 따른 집진기본체(3a)의 내부압이 상기 펄싱배관(21)에 영향을 주기 때문에, 미분탄이 상기 필터백(5)의 파손부위나 홀(12)을 통하여 상기 펄싱배관(21)으로 역류되고, 역류된 미분탄은 역류배관(111)을 통해 투명캡(113)내로 유입되어 부유하게 됨으로서, 작업자는 이를 육안으로 간편하게 검지할수 있기 때문에, 필터백(5)의 파손 및 홀발생을 간접적으로 확인하여 미분탄의 역류가 발생된 집진기(3)에 대해 신속한 점검 및 교체작업을 수행하게 된다. 이때, 상기 역류배관(111)에 설치된 제 1차단밸브(112)는 개방된 상태이고, 상기 투명캡(113)에 연결된 환기배출관(123)의 제 2차단밸브(124)는 닫혀진 상태이다.However, during the cycle in which the momentary excitation time of the electromagnetic coil 25 of the diaphragm valve 4 ends and the other diaphragm valve 4 operates, the high pressure of nitrogen gas does not affect the pulsing piping, Since the internal pressure of the dust collecting body 3a according to the inflow of flue gas and pulverized coal affects the pulsing pipe 21, the pulverized coal is discharged through the damaged part or the hole 12 of the filter bag 5. 21) backflow, and the backflow of the pulverized coal flows into the transparent cap 113 through the backflow pipe 111 and floats, so that the operator can easily detect it with the naked eye, causing breakage and hole generation of the filter bag 5. By indirectly checking the dust collector (3) backflow of the pulverized coal to perform a quick check and replacement work. At this time, the first blocking valve 112 installed in the backflow pipe 111 is in an open state, and the second blocking valve 124 of the ventilation discharge pipe 123 connected to the transparent cap 113 is in a closed state.

한편, 상기 투명캡(113)에 미분탄이 유입되어 필터백(5)의 파손 및 홀발생을 확인한 다음에는, 상기 역류배관(111)과 투명캡(113)사이에 조립된 제 1차단밸브(112)를 닫아 더 이상의 미분탄역류를 차단하고, 이러한 상태에서 해당 집진기의 필터백(5)을 교체할 때 차기 파손검지를 위한 상기 투명캡(113)의 환기를 위해서 환기관(121)의 환기밸브(122)를 개방하면, 질소가스공급관(7a)가 연통된 환기관(121)을 통해 환기용 질소가스가 상기 투명캡(113)으로 유입됨으로서 그 내부에 잔류하고 있던 미분탄을 환기배출관(123)으로 질소가스와 더불어 배출시켜 집진기본체(3a)에 설치된 배출관(16)을 통해 외부로 배출된다. 이때, 필터백파손검지를 위해 닫혀져 있던 제 2차단밸브(124)는 상기 환기밸브(122)의 개방과 동시에 개방되어 미분탄의 환기후 배출을 원할하게 하고, 환기가 완료되면 개방된 환기밸브(122), 제 2차단밸브(124)는 원상태로 닫혀져 더 이상의 환기용 질소가스의 유입을 차단함과 동시에, 상기 제 1차단밸브(112)는 투명캡(113)과 역류배관(111)이 서로 연통되도록 다시 개방되어 차기 파손검지작업에 대비한다.On the other hand, after the pulverized coal flows into the transparent cap 113 to confirm the breakage and hole generation of the filter bag 5, the first shutoff valve 112 is assembled between the backflow pipe 111 and the transparent cap 113. ) To block further pulverized coal backflow, and in this state, when replacing the filter bag 5 of the dust collector, the ventilation valve 122 of the ventilation pipe 121 for ventilation of the transparent cap 113 for the next breakage detection. ) Is opened, the nitrogen gas for ventilation is introduced into the transparent cap 113 through the ventilation pipe 121 through which the nitrogen gas supply pipe 7a is communicated with nitrogen gas to the ventilation discharge pipe 123. Along with the discharge is discharged to the outside through the discharge pipe 16 installed on the dust collecting base (3a). At this time, the second shut-off valve 124 which is closed for the detection of the filter bag damage is opened at the same time as the opening of the ventilation valve 122 to smoothly discharge the pulverized coal after ventilation, and the ventilation valve opened when the ventilation is completed. ), The second shut-off valve 124 is closed in the original state to block the further inflow of nitrogen gas, the first shut-off valve 112 is the transparent cap 113 and the backflow pipe 111 is in communication with each other. Reopen as much as possible to prepare for the next breakage detection.

상술한 바와같은 본 고안에 의하면, 필터백(5)의 파손 및 홀발생시 펄싱배관(21)으로 역류하는 미분탄을 확인할수있도록 이에 역류배관(111), 투명캡(113)을 연설하고, 상기 투명캡(113)에 잔류하는 미분탄을 환기시켜 청소할 수있도록 환기용 질소가스가 유입되는 환기관(121)과 환기배출관(123)을 투명캡(113)에 연통설치하여 조업중 필터백(5)의 손상여부를 조기에 신속하게 검지할수 있기 때문에 제조계통의 휴지시 발생할수 있는 설비의 열화, 폭발 및 화재등을 예방할수 있고, 미분탄의 회수율을 종래에 비하여 높여 미분탄제조설비의 작업생산성을 현저히 향상시킬수 있는 실용상의 효과가 얻어진다.According to the present invention as described above, in order to check the pulverized coal flowing back to the pulsing pipe 21 in the case of breakage and hole generation of the filter bag 5, the counter flow pipe 111, the transparent cap 113 to address the transparent, Damage to the filter bag 5 during operation by installing a ventilation pipe 121 and a ventilation discharge pipe 123 in which the nitrogen gas for ventilation is introduced to the transparent cap 113 so that the pulverized coal remaining in the cap 113 can be cleaned. It can quickly detect whether or not it is possible to prevent deterioration, explosion, and fire of equipment that may occur during the rest of the manufacturing system, and improve the work productivity of pulverized coal manufacturing equipment by increasing the recovery rate of pulverized coal. Practical effects are obtained.

Claims (1)

파쇄기(2)로 공급된 콜을 배가스팬(1)의 열풍로배가스로서 건조하고, 파쇄된 미분탄과 열풍로배가스를 필터백(5)이 내장된 집진기본체(3a)로 강제공급하며, 상기 필터백(5)에 부착된 미분탄을 펄싱배관(21)으로부터 공급되는 질소가스의 압력으로서 탈락시켜 회수하는 미분탄제조설비에 있어서,The call supplied to the crusher 2 is dried as the hot stove exhaust gas of the flue gas fan 1, and the pulverized pulverized coal and hot stove flue gas are forcibly supplied to the dust collecting body 3a having the filter bag 5 therein, and the filter In a pulverized coal production plant in which pulverized coal adhering to the bag 5 is dropped off and recovered as the pressure of nitrogen gas supplied from the pulsing piping 21, 상기 필터백(5)의 파손시 미분탄이 역류되도록 상기 펄싱배관(21)과 연통연결되고, 역류된 미분탄유로를 개폐하는 제 1차단밸브(112)를 갖는 역류배관(111)과, 개방된 제 1차단밸브(112)를 통해 유입된 미분탄을 육안으로 할수 있도록 투명캡(113)을 설치한 검지부(110);와,A backflow pipe 111 connected to the pulsing pipe 21 so that the pulverized coal flows back when the filter bag 5 is damaged, and having a first cutoff valve 112 for opening and closing the backflow of the pulverized coal flow path; Detecting unit 110 is provided with a transparent cap 113 so that the pulverized coal flowed through the first shut-off valve 112 with the naked eye; 상기 투명캡(113)으로 질소가스를 공급할수 있도록 질소가스공급관(7a)과 연통연결되는 환기관(121)과, 상기 투명캡(113)과 배출관(16)사이에 설치되어 환기된 질소가스와 미분탄을 배출하는 환기배출관(123) 및 상기 환기관(121)의 환기밸브(122)의 개폐작동에 따라 개폐작동되는 제 2차단밸브(124)를 상기 환기배출관(123)에 설치한 환기부(120);를 포함함을 특징으로 하는 집진기의 필터백 파손검지장치.Ventilation pipe 121 is connected to the nitrogen gas supply pipe (7a) so as to supply nitrogen gas to the transparent cap 113, and the nitrogen gas and pulverized coal is installed between the transparent cap 113 and the discharge pipe (16) Ventilation unit 120 is installed in the ventilation discharge pipe 123 to the ventilation discharge pipe 123 and the second shut-off valve 124 to be opened and closed in accordance with the opening and closing operation of the ventilation valve 122 of the ventilation pipe 121 to discharge. Filter bag damage detection device of the dust collector, characterized in that it comprises a.
KR20-1999-0008149U 1999-05-13 1999-05-13 Device for sensing the damaged filter bag of dust collector KR200320159Y1 (en)

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