經濟部中央標準局員工消費合作社印製 叱 〇98 A7 B7 五、發明説明（） 本發明係關於一種可避免火星燒燬濾袋之袋式集塵 方法及裝置，尤有關於一種利用一飛灰供給機構，將飛 灰注入集塵機上游，使其在濾袋表面形成一飛灰保護 層，用以保護集塵機之濾材，防止因作為集塵、除塵處 理對象之煙氣中含有火星，而造成燒燬濾袋之損害的可 避免火星燒燬濾袋之袋式集塵方法及裝置。 顯示一習用袋式集塵裝置之構造的运意圖。此一袋 式集塵裝置包含：集塵機1，以其入口2連接於煙氣排出 通道7 0中，並備有多數用以收集煙氣中之粉塵的濾袋 4 ;高壓空氣源6，以高壓空氣喷入管9連接至該集塵機1 之上部，用以提供高壓空氣將附著於濾袋4之粉塵沖落 至該集塵機1之底邵；排塵閥5，設於該集塵機1之底 部，用以將被沖落之粉塵排出至外部；控制閥7，設於 高壓空氣喷入管9中，藉其開閉以控制高壓空氣之進入 遠集塵機1與否，壓差感測器30，用以量取集塵機1之遽 袋4兩端之壓差；可程式控制器4〇，用以依該壓差感測 益30所量取並傳輸過來之爐'袋4兩端之壓差，控制該控 制閥7之開閉；引風機5〇，連接在該集塵機1之出口3， 用以將已除塵完畢之煙氣自集塵機丨抽出；及煙囪6〇， 連接在該引風機50之出口，用以將自集塵機1經由引風 機50抽出之煙氣予以排出。 於袋式集塵機在除塵領域的應用上，濾袋材質的遂 用是很重要的一環。受限於濾袋材質的基本物性，每/ 種濾材都有一定的操作溫度上限。於前述習用袋式隹廣 本紙張纽適财關家標準（CNS ) Α4» ( 21Gx297公瘦）. (請先閱讀背面之注意事項再填寫本頁) 装· 訂 311098 經濟部中央標準局'貝工消费合作社印製 A7 B7 五、發明説明（） 機，在集塵、除塵處理過程中，濾袋並未受到任何保 護二而直接與作為集塵、除塵處理對象之煙氣接觸，若 煙氣中含有火星，往往容易造成火星燒燬濾袋之損害。 本發明鑑於前述習知技術之鲍勒，其目的在提供一 種可避免火星燒燦濾袋之袋式集塵方法及裝置。 為達成前述目的，依本發明之可避免火星燒燦滤袋 之袋式集塵方法’係利用連接於煙氣排出通道中並設有 濾袋及排塵閥的一集塵機以收集煙氣中之粉塵，此方法 包含如下各步騾：飛灰保護層形成步騾，將飛灰注入煙氣 排出通道中之該集塵機之上游，令飛灰罩覆於集塵機之 濾袋上，直至滤袋兩端之壓差升高至預先設定之第二壓 差，俾在濾袋上形成一飛灰保護層，防止火星燒燬濾 袋；粉塵收集步騾，停止注入飛灰，繼續收集煙氣中之 粉塵，直至濾袋兩端之壓差升高至高於該第二壓差的預 先設定之第三壓差；及脈衝清洗步騾，自連接於該集塵 機之一高壓空氣源導入高壓突氣，沖擊在附著於濾袋之 粉塵，使粉塵掉落至集塵機之底部，由該排塵閥予以排 出，直至濾袋兩端之壓差降低至低於該第二壓差的預先 設定之第一壓差；如此反覆依序施行該飛灰保護層形成 步騾、粉塵收集步騾及脈衝清洗步騾，而構成一連續之 操作循環。 又，依本發明之可避免火星燒燬濾袋之袋式集塵裝 置，包含：集塵機，設有：煙氣入口，用以將待進行集塵 及除塵處理之煙氣導入至集塵機中；煙氣出口，用以將 ^1- |»^ I - --. *I^I 1^1. I s 1 - - - - ^1 士^, m n^— - - 1^1 U5 、言 (請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中關家標準（CNS)A4规格（21〇><297公羡） 經濟部中央標準局員工消費合作社印製 A7 _ B7_______ 集塵2除塵處理之煙氣排出至集塵機外；高壓命 氣導入口，設於該集塵機之上部；及一排塵閥，設於集 塵機之下端，用以將由煙氣中除去之粉塵等排出至集塵 機外；第一高壓空氣源，藉由高壓空氣噴入管連至 塵機之tij壓空氣導入口，用以.提供高壓空氣將附著於淚 袋之粉塵沖落至該集塵機之底部而由該排塵閥排出；控 制閥，設於由第一高壓空氣源連至該集塵機之高壓空氣 喷入管中，藉其開閉以控制高壓空氣之進入該集塵機與 否；飛灰供給機構，用以將粉末狀之飛灰供給至集塵機 之該煙氣入口上游處，俾使其注入集塵機内以罩覆於該 集塵機之濾袋上，防止煙氣中之火星直接接觸濾材；壓 差感測器，用以量取集塵機之滤袋兩端之壓差，並將該 壓差傳輸至控制器；及可程式控制器，用以依實際須要 適當設定一第，一壓差、及較該第一壓差為高之一第二壓 差、以及較該第二壓差為高之一第三壓差，並接受由該 壓差感測器傳輸過來之濾袋壓差信號；在該濾袋壓差達 於第一壓差時，即由可程式控制器控制該飛灰供給機 構，令飛灰注入該集塵機内，而附著於該集塵機之濾袋 上’並在其上形成一飛灰保護層，防止火星燒燦濾袋； 俟該濾袋壓差升高至第二壓差時，即由可程式控制器控 制該飛灰供給機構，停止注入飛灰，自煙氣所收集之粉 塵持續堆集於濾袋上；俟該濾袋壓差升高至第三壓差 時，即由可程式控制器控制使該控制閥開啓，令高壓空 氣喷入至集塵機内，對堆集於該集塵機之濾袋上之粉麈 n. I m n - ί - -- —II 奠 I I--- - - 1 丁 I n : U3. 销 (請先閲讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公嫠） 83.3.10,000 五 經濟部中央標準局員工消費合作社印製 31109s 曩，，(清洗'♦俟該攄袋壓差降低至第一壓差時，即由 可程式控她控偷控侧使其制以停止脈衝清洗， 並控制該飛灰供給_，令歧再度注讀集塵機内， 如此反1進行，而形成一連續之楚生輝環。 、、在幻述之可避免火星燒燬濾袋之袋式集塵裝置中， 孩飛灰供給機構包括：儲槽，用以儲存飛灰及由該排塵 閥出口回收之飛灰及粉塵；螺旋下料機，設於該儲槽之 下万’簡飛灰排出；及顏輸送粉體裝置，用以將 =抽送域集塵機之缝人口上游處，包含第二高壓 1源、及連接賴第二高壓空氣源之送風機、以及喷 f器，.其中該螺旋下料機之飛灰排出口係連接於該噴射 器之截面縮小之喉部，該噴射器之入口及出口分別連接 於該送風機之出風口及該集塵機之煙氣入口上游處，俾 利用自该第二鬲壓空氣源引入之高壓空氣加速通過該噴 射器之喉部，於該處造成負壓，而將由該螺旋下料j幾排 出之飛灰抽送至該集塵機之煙氣入口上游處，再藉 氣載送入該集塵機内。 a 、 為了使貴審查委員能更進一步瞭解本創作之特徵及 技術内容，請參閱以下有關本創作之詳細説明與附圖1’然 而所附圖式僅提供參考與説明用，並非用來對本創二加: 限制者。有關該實施例之附圖為： 圖式簡單説明： 圖一為習用袋式集塵袭置乏構造的示意圖。 圖二為本發明可避免火星燒燬濾袋之袋式集塵裳置之一、 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） '-裝------訂-----：線 (請先閲讀背面之注意事項再填寫本頁) 83. 3.10,000 經濟部中央標準局員工消費合作社印製 A 7 B7 五、發明説明（） 意圖。 元件符號説明： 1-集塵機 2-入口 3-出口 4-濾袋 5-排塵閥 6-高壓空氣源，7-控制閥 9- 高壓空氣喷入管 10- 飛灰供給機構 11-儲槽 12-螺旋下料機 13-馬達 20-氣體輸送粉體裝置 21-第二高壓空氣源 22-空氣過濾器 23-送風機 24-喷射器 30-壓差感測器 40-可程式控制器 50-引風機 60-煙1¾ 70-煙氣排出通道 顯示依本發明一實施例之可避免火星燒燬濾袋之袋 式集塵裝置之示意圖。在此圖中，對於和圖1之習用袋 式集塵裝置相同之部分僅賦於同一符號，而省略其説 明0 由圖2和圖1之比較可知，兩者之差異係在本發明之 袋式集塵裝置中加設有用以將粉末狀之飛灰供給至集塵 機1内之飛灰供給機構10。另外，可程式控制器40之控 制（以不連續線表示）對象除了控制閥7外，尚包含飛灰 供給機構10内之元件，其詳細情形説明如下。 如圖2所示，飛灰供給機構10包括：儲槽11，用以儲 存飛灰及由該排塵閥5出口回收經集塵機1濾除之飛灰及 粉塵；螺旋下料機12，設於該儲槽11之下方，用以將儲 槽内所貯存之飛灰排出；馬達13，用以受可程式控制器 —. - I - - I _ii A n^— --- 1 In------ 1 I 、T (請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS ) A4規格（210 X 297公釐） A7 A7 經濟部中央標準局員工消費合作社印製 發明説明（ 制祕動職下料難之軸；錢義送粉體 由_U所排出之飛灰抽送至該集塵機 •^煙氣入口上游處。氣體輸送粉體装置2〇包含：第二高 ^氣源21 ;空氣過絲22，連接於該第二“空氣源 21，用以過濾來自第二高壓空氣源21之空 ⑴用以將經過狀錢予以加壓；及噴射㈣。螺旋 了料機12之飛灰排itin係連接於該噴射器24之喉部，而 p貧射器24之入口及出口分別連接於送風機23之出風口及 集塵機1之煙氣人口上游處，自第二聽空氣源21引入 之鬲壓空氣加速通過該嘴射器24之截面縮小之喉部，於 孩處造成負壓（柏努力原理），而將由螺旋下料機12排出 <飛灰抽送至集塵機1之煙氣入口上游處，再藉由煙氣 載送入集塵機1内，並罩覆於集塵機1之濾袋4上，在其 上形成一飛灰保護層，俾防止火星燒燬濾袋。 兹説明利用前述本發明之袋式集塵裝置，以對於待 處理之煙氣進行集塵、除塵作業之方法。此一方法包含 飛灰保護層形成步驟、粉塵收集步驟、及脈衝清洗步 驟。於飛灰保護層形成步驟，係利用可程式控制器4〇控 制馬達13，以驅動螺旋下料機12，將儲槽丨丨内之飛灰、戍 下至喷射器24之喉部，再藉由氣體輸送粉體裝置20 ,將 飛灰抽吸注入於煙氣排出通道7〇中之集塵機丨之上游， 利用煙氣將飛灰載送入集塵機1内，使飛灰罩覆於集塵 機之據袋4上，直至濾袋4兩端之壓差升高至預先設定之 第二壓差，例如5〇mm水柱，俾在濾袋4上形成一飛灰保 m^i I I^n 二! nn 1. I! - i 1 .n --aJ (請先閲讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家椟準（CNS ) A#規格（2丨〇><297公釐） ^11093 ^11093 五 A7 B7 •發明説明（） 護層，以防止火星燒燦據袋4。此時，進入粉塵收集步 驟，以可程式控制器40控制馬達13及儲槽n，使停土注 ^飛灰丄持續收集煙氣中之粉.塵，直域袋4兩端之廢 差更升鬲至高於該第二壓差的一預先設定之第三壓差， 例如150mm水柱。此時，即進入脈衝清洗步騾，以邛程 讀制器砸健顧7_，自連接於集塵機丨之一高 導X高壓空氣’沖擊在附著㈣、袋4之粉塵， 使粉塵掉落至集塵機i之底部，由排塵閥5予以排出，直 f濾，4兩端之壓差降低至低於該第二壓差的一預先設 ^之第壓差，例如2〇mm水柱。此時，再度進入飛灰保 ^層=成步驟，以可程式控制器讎制控制閥7關閉， 停止向壓空氣之供給，並控制馬達13,_螺旋下料機Μ ，始將飛灰注入於集塵機丨内，以在遽袋4上形成飛灰保 謾層。如此反覆依序施行飛灰保護層形成步驟、粉塵收 集步驟及脈衝清洗步驟，而構成—連續之操作循環。 以上，係就本發明之一較佳實施例加以描述，此一 實，例僅係用來説明而非限制本發明。在不脱離本發明 <貫質内容之範疇内仍可作各種變形而加以會施，此等 變形仍應屬本發明之範^本發明之料由 中 請專利範圍所界定。 卜 < 甲 I---------- 一请先閱讀背>8之注意事項再填寫本頁)Printed by the Central Standards Bureau of the Ministry of Economic Affairs Employee Consumer Cooperative 98. A7 B7 5. Description of the invention () The present invention relates to a bag-type dust collection method and device that can prevent the filter bag from being burned by Mars, and particularly relates to a fly ash supply. The mechanism injects fly ash into the upstream of the dust collector to form a fly ash protective layer on the surface of the filter bag to protect the filter material of the dust collector and prevent the filter bag from being burned due to the presence of sparks in the flue gas as the object of dust collection and dust removal treatment. The damage of the bag-type dust collection method and device can prevent the spark from burning the filter bag. Shows the operating intention of a conventional bag-type dust collector. This bag-type dust collector includes: a dust collector 1, which is connected to the flue gas exhaust channel 70 by its inlet 2, and is equipped with a large number of filter bags 4 for collecting dust in the flue gas; The air injection pipe 9 is connected to the upper part of the dust collector 1 to provide high-pressure air to flush the dust attached to the filter bag 4 to the bottom of the dust collector 1; the dust discharge valve 5 is provided at the bottom of the dust collector 1 for The washed-out dust is discharged to the outside; the control valve 7 is set in the high-pressure air injection pipe 9 to control whether the high-pressure air enters the remote dust collector 1 or not, and the differential pressure sensor 30 is used to measure the dust collector 1 the pressure difference between the two ends of the bag 4; the programmable controller 40 is used to control the control valve 7 according to the pressure difference measured by the pressure difference sensing benefit 30 and transmitted over the pressure difference across the furnace 4 bag 4 Opening and closing; induced draft fan 50, connected to the outlet 3 of the dust collector 1 to extract the flue gas that has been dedusted from the dust collector 丨; and chimney 60, connected to the outlet of the induced draft fan 50 to connect the dust collector 1 The flue gas extracted through the induced draft fan 50 is discharged. In the application of bag dust collectors in the field of dust removal, the use of filter bag materials is an important part. Limited by the basic physical properties of the filter bag material, each filter material has a certain upper operating temperature limit. Based on the aforementioned conventional bag-style wide-leaf papers, the Newcastle Finance Standard (CNS) Α4 »(21Gx297 male thin). (Please read the precautions on the back before filling out this page) Binding · Order 311098 Ministry of Economic Affairs Central Standards Bureau A7 B7 printed by the industrial and consumer cooperative. V. Invention description () machine. In the process of dust collection and dedusting, the filter bag is not protected. It directly contacts the flue gas as the object of dust collection and dedusting. If the flue gas Containing Mars, it is often easy to cause damage to Mars by burning the filter bag. The present invention is based on the aforementioned conventional technology of Baller, and its purpose is to provide a bag-type dust collection method and device which can avoid the Mars burning filter bag. In order to achieve the foregoing purpose, the bag-type dust collection method for avoiding Mars burning filter bags according to the present invention utilizes a dust collector connected to the flue gas exhaust channel and provided with a filter bag and a dust discharge valve to collect the flue gas For dust, this method includes the following steps: the fly ash protective layer forms a step mule, injects fly ash into the flue gas exhaust channel upstream of the dust collector, so that the fly ash is covered on the filter bag of the dust collector until the filter bag ends The pressure difference rises to the preset second pressure difference, so as to form a protective layer of fly ash on the filter bag to prevent Mars from burning the filter bag; the dust collection step mule, stop the injection of fly ash, continue to collect the dust in the flue gas, Until the pressure difference between the two ends of the filter bag rises to a predetermined third pressure difference higher than the second pressure difference; and the pulse cleaning step mule, introducing high-pressure burst gas from a high-pressure air source connected to the dust collector, impacting on the attachment The dust in the filter bag causes the dust to fall to the bottom of the dust collector, and is discharged by the dust discharge valve until the pressure difference between the two ends of the filter bag drops below the preset first pressure difference of the second pressure difference; Repeatedly execute the fly ash The protective layer forms a step mule, a dust collection step mule and a pulse cleaning step mule, which constitute a continuous operation cycle. In addition, the bag-type dust collecting device according to the present invention which can avoid the burning of the filter bag by Mars includes: a dust collecting machine provided with: a flue gas inlet for introducing flue gas to be collected and dedusted into the dust collecting machine; flue gas Export to use ^ 1- | »^ I--. * I ^ I 1 ^ 1. I s 1----^ 1 士 ^, mn ^ —--1 ^ 1 U5, words (please first Read the precautions on the back and then fill out this page) This paper standard is applicable to the Zhongguanjia Standard (CNS) A4 specification (21〇 < 297 public envy) A7 _ B7_______ Dust Collected by the Employees Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs The flue gas from the dust removal process is discharged to the dust collector; the high-pressure life gas inlet is provided at the upper part of the dust collector; and a dust discharge valve is provided at the lower end of the dust collector to discharge the dust removed from the flue gas to the dust collector; The first high-pressure air source is connected to the tij compressed air inlet of the dust machine through a high-pressure air injection pipe to provide high-pressure air to wash the dust attached to the tear bag to the bottom of the dust collector and discharge it from the dust discharge valve The control valve is set in the high-pressure air injection pipe connected to the dust collector from the first high-pressure air source Through its opening and closing to control whether high-pressure air enters the dust collector or not; the fly ash supply mechanism is used to supply powdered fly ash to the upstream of the flue gas inlet of the dust collector so that it can be injected into the dust collector to cover the dust collector On the filter bag, to prevent Mars in the flue gas from directly contacting the filter material; differential pressure sensor to measure the differential pressure at both ends of the filter bag of the dust collector, and transmit the differential pressure to the controller; and programmable controller , To properly set a first pressure difference, a second pressure difference higher than the first pressure difference, and a third pressure difference higher than the second pressure difference according to actual needs, and accept the The differential pressure signal of the filter bag transmitted by the differential pressure sensor; when the differential pressure of the filter bag reaches the first differential pressure, the fly ash supply mechanism is controlled by a programmable controller to inject the fly ash into the dust collector, It is attached to the filter bag of the dust collector and forms a fly ash protective layer on it to prevent Mars from burning the filter bag; when the pressure difference of the filter bag rises to the second pressure difference, it is controlled by the programmable controller The fly ash supply mechanism stops the injection of fly ash and collects it from the flue gas The dust continues to accumulate on the filter bag; when the pressure difference of the filter bag rises to the third pressure difference, the control valve is opened by the programmable controller, so that the high-pressure air is injected into the dust collector, and the The powder on the filter bag of the dust collector n. I mn-ί---- II I I -----1 Ding I n: U3. Sales (please read the precautions on the back before filling this page) This paper The standard is applicable to the Chinese National Standard (CNS) A4 specification (210X297). 83.3.10,000 The 31109s printed by the Staff Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs, (cleaning) when the pressure difference of the bag is reduced to the first pressure difference That is, it can be controlled by the program to control the stealing side to stop the pulse cleaning, and control the fly ash supply _, so that the Qi once again read into the dust collector, so the reverse 1 is performed, forming a continuous Chu Shenghui ring. 2. In the bag-type dust collection device that can prevent the spark from burning the filter bag, the fly ash supply mechanism includes: a storage tank for storing fly ash and the fly ash and dust recovered from the outlet of the dust discharge valve; spiral The feeder is installed under the storage tank and discharges ash from the fly; and the powder conveying device is used to transfer the upstream of the slit of the dust collector of the pumping area, including the second high-pressure 1 source, and the connection of the second High-pressure air source blower and sprayer, where the fly ash discharge port of the spiral feeder is connected to the throat of the reduced section of the ejector, and the inlet and outlet of the ejector are respectively connected to the outlet of the blower At the upstream of the tuyere and the flue gas inlet of the dust collector, the high-pressure air introduced from the second pressure air source is used to accelerate through the throat of the ejector, causing a negative pressure at the place, and will be discharged by the spiral discharge The fly ash is pumped to the upstream of the flue gas inlet of the dust collector, and then sent into the dust collector by air load. a. In order for your reviewing committee to understand the characteristics and technical content of this creation, please refer to the following detailed description of this creation and attached drawings 1 '. However, the drawings are only for reference and explanation, not for the creation of this creation. Two plus: limiter. The drawings related to this embodiment are as follows: Brief description of the drawings: FIG. 1 is a schematic diagram of a conventional bag-type dust collecting and disposing structure. Figure 2 is one of the bag-type dust collectors of the present invention that can avoid the burning of the filter bag by Mars. This paper standard is applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm). ---: Line (please read the notes on the back before filling in this page) 83. 3.10,000 A 7 B7 printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs V. Instruction () Intent. Symbol description of components: 1- dust collector 2- inlet 3- outlet 4- filter bag 5- dust discharge valve 6- high-pressure air source, 7- control valve 9- high-pressure air injection pipe 10- fly ash supply mechanism 11- storage tank 12- Screw feeder 13-motor 20-gas conveying powder device 21-second high-pressure air source 22-air filter 23-blower 24-ejector 30-differential pressure sensor 40-programmable controller 50-draft fan 60-smoke 1¾ 70-smoke exhaust channel shows a schematic diagram of a bag-type dust collection device according to an embodiment of the present invention, which can prevent the sparks from burning the filter bag. In this figure, the same parts as the conventional bag-type dust collector of FIG. 1 are only given the same symbol, and their descriptions are omitted. 0 As can be seen from the comparison between FIG. 2 and FIG. 1, the difference between the two is in the bag of the present invention A fly ash supply mechanism 10 for supplying powdered fly ash into the dust collector 1 is added to the dust collector. In addition, the programmable controller 40 controls (indicated by a discontinuous line) objects in addition to the control valve 7 and also includes components in the fly ash supply mechanism 10, the details of which are described below. As shown in FIG. 2, the fly ash supply mechanism 10 includes: a storage tank 11 for storing fly ash and recovering the fly ash and dust filtered by the dust collector 1 from the outlet of the dust discharge valve 5; a screw cutting machine 12 is provided at The bottom of the storage tank 11 is used to discharge the fly ash stored in the storage tank; the motor 13 is used to be controlled by a programmable controller-.-I--I _ii A n ^ — --- 1 In --- --- 1 I, T (Please read the precautions on the back before filling in this page) This paper size is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) A7 A7 Printed by the Employee Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs Description of the manufacturing system (The axis of difficulty in making secrets and moving materials; the fly ash discharged from _U is pumped to the dust collector upstream of the dust collector. ^ The upstream of the flue gas inlet. The gas conveying powder device 2 includes: second High ^ air source 21; air wire 22, connected to the second "air source 21, to filter the air from the second high-pressure air source 21 (1) to pressurize the passing money; and spray (iv). The fly ash itin of the feeder 12 is connected to the throat of the ejector 24, and the inlet and outlet of the p-lean ejector 24 are respectively connected to the blower 2 At the air outlet of 3 and upstream of the smoke of the dust collector 1, the compressed air introduced from the second listening air source 21 accelerates through the throat of the reduced cross section of the nozzle ejector 24, causing a negative pressure at the child's place. ), And discharge the fly ash from the spiral feeder 12 to the upstream of the flue gas inlet of the dust collector 1, and then send it into the dust collector 1 by the flue gas, and cover the filter bag 4 of the dust collector 1, at A fly ash protective layer is formed thereon to prevent Mars from burning the filter bag. The method of using the bag-type dust collector of the present invention to collect and remove dust from the flue gas to be treated is described below. Ash protection layer formation step, dust collection step, and pulse cleaning step. In the fly ash protection layer formation step, a programmable controller 40 is used to control the motor 13 to drive the spiral feeder 12, and the storage tank Fly ash, rush down to the throat of the ejector 24, and then inject the fly ash into the upstream of the dust collector in the flue gas exhaust channel 70 through the gas conveying powder device 20, and use the flue gas to carry the fly ash Feed into the dust collector 1 to cover the fly ash On the data bag 4 of the dust collector, until the pressure difference between the two ends of the filter bag 4 rises to a preset second pressure difference, such as 50mm water column, to form a fly ash protection m ^ i II ^ on the filter bag 4 n 二! nn 1. I!-i 1 .n --aJ (Please read the precautions on the back before filling in this page) This paper size is applicable to China National Standards (CNS) A # specifications (2 丨 〇 > < 297mm) ^ 11093 ^ 11093 Five A7 B7 • Description of invention () Protective layer to prevent Mars from burning the bag 4. At this time, enter the dust collection step, and the programmable controller 40 controls the motor 13 and the storage tank n, Stop soil injection ^ fly ash to continue to collect dust and dust in the flue gas, the waste difference at both ends of the straight field bag 4 is further increased to a predetermined third pressure difference higher than the second pressure difference, for example 150mm water column . At this time, the pulse cleaning step mule is entered, and the Qionggu 7_ is hit with a Qiongcheng reader, which is connected to the dust collector and one of the high-conductivity X high-pressure air 'impacts on the dust attached to the bag 4 and the dust falls to the dust collector. The bottom of i is discharged by the dust discharge valve 5, straight f filter, the pressure difference between the two ends of the 4 is reduced to a predetermined first pressure difference lower than the second pressure difference, for example, 20mm water column. At this time, once again enter the fly ash protection layer = completion step, with the programmable controller control valve 7 closed, stop the supply of compressed air, and control the motor 13, screw feeder Μ, began to inject fly ash In the dust collector, a fly ash protection layer is formed on the Yun bag 4. In this way, the fly ash protective layer formation step, the dust collection step, and the pulse cleaning step are repeatedly executed in sequence to form a continuous operation cycle. The above is a description of a preferred embodiment of the present invention. In fact, the examples are only used to illustrate but not limit the present invention. Various modifications can be made without departing from the scope of the present invention < consistency content. Such modifications should still belong to the scope of the invention ^ The material of the invention is defined by the scope of the Chinese patent application. BU < A I ---------- Please read the back > 8 precautions before filling this page)
*1T 經濟部中央標準局員工消費合作社印製* 1T Printed by the Staff Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs