TWM578359U - Equipment used to remove dioxin waste gas from hazardous industrial waste incineration and having ceramic fiber filter tube - Google Patents
Equipment used to remove dioxin waste gas from hazardous industrial waste incineration and having ceramic fiber filter tube Download PDFInfo
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Abstract
一種具有陶纖濾管之危險事業廢棄物焚化廢氣戴奧辛去除設備，適用於去除一廢氣中的戴奧辛及粉塵，並包含一適用於將該廢氣降溫到150℃至250℃的降溫單元、一連通該降溫單元的集塵單元、一連通該集塵單元的脫硝單元，及一連通該脫硝單元的觸媒單元。該集塵單元適用於對該廢氣進行高速旋轉以去除粉塵，該脫硝單元適用於在該廢氣中混合氨基還原劑，使該廢氣形成一脫硝氣體。該觸媒單元包括至少一適用於供該脫硝氣體通過的濾管，及一附著於該至少一濾管的觸媒，該觸媒具有二氧化鈦及釩氧化物，使該脫硝氣體通過該至少一濾管時，戴奧辛將被該觸媒單元分解去除。 A dioxin removal device for incineration waste gas with a ceramic fiber filter tube, which is suitable for removing dioxin and dust in an exhaust gas, and comprises a cooling unit suitable for cooling the exhaust gas to 150 ° C to 250 ° C, a dust collecting unit of the cooling unit, a denitration unit connected to the dust collecting unit, and a catalyst unit connected to the denitration unit. The dust collecting unit is adapted to rotate the exhaust gas at a high speed to remove dust. The denitration unit is adapted to mix an amino reducing agent in the exhaust gas to form a denitration gas. The catalyst unit includes at least one filter tube suitable for the passage of the denitration gas, and a catalyst attached to the at least one filter tube, the catalyst having titanium dioxide and vanadium oxide, the denitration gas passing through the at least When a filter tube is used, Dioxin will be decomposed and removed by the catalyst unit.
Description
本新型是有關於一種煙塵的處理設備，特別是指一種具有陶纖濾管之危險事業廢棄物焚化廢氣戴奧辛去除設備。 The invention relates to a soot processing device, in particular to a Dyassin removal device for incineration waste gas of hazardous business waste having a ceramic fiber filter tube.
參閱圖1，一種現有的廢氣除塵設備，適用於去除該廢氣中的戴奧辛(Dioxin，又稱為二噁英)及粉塵，並適用於連通一產生該廢氣的鍋爐91。該廢氣除塵設備包含一適用於以氨型藥劑混合該廢氣並去除氮氧化物的脫硝器92、一適用於進行熱回收並使該廢氣降溫的熱交換器93、一適用於以消石灰及活性碳混合該廢氣的半乾式洗滌塔94、一適用於去除該廢氣中的粉塵的不織布過濾器95，及一適用於排放該廢氣的排氣管96。 Referring to Figure 1, a conventional exhaust gas dedusting apparatus is adapted to remove dioxin (also known as dioxins) and dust in the exhaust gas, and is adapted to communicate with a boiler 91 that produces the exhaust gas. The exhaust gas dedusting apparatus comprises a denitrator 92 adapted to mix the exhaust gas with an ammonia type agent and remove nitrogen oxides, a heat exchanger 93 suitable for performing heat recovery and cooling the exhaust gas, and one suitable for slaked lime and active A semi-dry scrubber 94 in which the exhaust gas is mixed with carbon, a non-woven filter 95 adapted to remove dust in the exhaust gas, and an exhaust pipe 96 adapted to discharge the exhaust gas.
由於該不織布過濾器95容易因高溫而毀損，因此須以該熱交換器93將該廢氣的溫度降至200℃以下，但在此過程中，反而容易使該廢氣的溫度低於硫酸蒸汽的凝結溫度(以下簡稱為酸露點)，並使硫酸凝結在該半乾式洗滌塔94等處理裝置的表面而造成酸蝕，進而降低該廢氣除塵設備的使用壽命。另外，以該不織布過 濾器95過濾出的粉塵中含有吸附有戴奧辛的活性碳及吸附有硫氧化物的飛灰，須另外送至危險廢棄物處理廠分解戴奧辛才能排放，將大幅提高該廢氣的處理成本。 Since the non-woven filter 95 is easily damaged by high temperature, the temperature of the exhaust gas must be lowered to 200 ° C or lower by the heat exchanger 93, but in the process, the temperature of the exhaust gas is easily lower than the condensation of sulfuric acid vapor. The temperature (hereinafter referred to as acid dew point) causes sulfuric acid to condense on the surface of the treatment device such as the semi-dry scrubber 94 to cause acid etching, thereby reducing the service life of the exhaust gas dedusting device. In addition, the non-woven fabric The dust filtered by the filter 95 contains activated carbon adsorbed with dioxin and fly ash adsorbed with sulfur oxides, which must be separately sent to a hazardous waste treatment plant to decompose dioxin to discharge, which will greatly increase the treatment cost of the exhaust gas.
因此，本新型之目的，即在提供一種能延長使用壽命，且能以較低的成本去除戴奧辛的具有陶纖濾管之危險事業廢棄物焚化廢氣戴奧辛去除設備。 Therefore, the object of the present invention is to provide a dioxin removal apparatus for incineration waste gas of a hazardous business waste having a ceramic fiber filter which can extend the service life and can remove dioxin at a low cost.
於是，本新型具有陶纖濾管之危險事業廢棄物焚化廢氣戴奧辛去除設備，適用於去除一廢氣中的戴奧辛及粉塵，並包含一適用於將該廢氣降溫到150℃至250℃的降溫單元、一連通該降溫單元的集塵單元、一連通該集塵單元的脫硝單元，及一連通該脫硝單元的觸媒單元。 Therefore, the present invention has a Dianxin removal device for incineration waste gas of a dangerous business waste material, which is suitable for removing dioxin and dust in an exhaust gas, and comprises a cooling unit suitable for cooling the exhaust gas to 150 ° C to 250 ° C, a dust collecting unit connected to the cooling unit, a denitration unit connected to the dust collecting unit, and a catalyst unit connected to the denitration unit.
該集塵單元適用於對該廢氣進行高速旋轉，使粉塵脫離該廢氣。該脫硝單元適用於在該廢氣中混合氨基還原劑，使該廢氣形成一脫硝氣體。該觸媒單元包括至少一適用於供該脫硝氣體通過的濾管，及一附著於該至少一濾管的觸媒，該觸媒具有二氧化鈦及釩氧化物，使該脫硝氣體通過該至少一濾管時，戴奧辛被該觸媒單元分解並去除。 The dust collecting unit is adapted to rotate the exhaust gas at a high speed to dissipate the dust from the exhaust gas. The denitration unit is adapted to mix an amino reducing agent in the exhaust gas to form a denitration gas. The catalyst unit includes at least one filter tube suitable for the passage of the denitration gas, and a catalyst attached to the at least one filter tube, the catalyst having titanium dioxide and vanadium oxide, the denitration gas passing through the at least When a filter tube is used, Dioxin is decomposed and removed by the catalyst unit.
本新型之功效在於：以附著有該觸媒的該至少一濾管 過濾該廢氣，使該觸媒能在較高的反應溫度中直接分解該廢氣中的戴奧辛，並能避免該具有陶纖濾管之危險事業廢棄物焚化廢氣戴奧辛去除設備受到酸蝕，可延長該具有陶纖濾管之危險事業廢棄物焚化廢氣戴奧辛去除設備的使用壽命，及有效降低該廢氣的處理成本。 The effect of the novel is to: the at least one filter tube to which the catalyst is attached The exhaust gas is filtered, so that the catalyst can directly decompose the dioxin in the exhaust gas at a higher reaction temperature, and can avoid the acid etch of the incineration waste gas of the dangerous industrial waste having the ceramic fiber filter tube, which can be extended. The life of the incineration waste gas with the ceramic fiber filter, the dioxin removal equipment, and the effective treatment cost of the exhaust gas.
1‧‧‧降溫單元 1‧‧‧ cooling unit
2‧‧‧脫硫單元 2‧‧‧Desulfurization unit
3‧‧‧集塵單元 3‧‧‧Dust collection unit
4‧‧‧加活性碳單元 4‧‧‧Addition of activated carbon units
5‧‧‧脫硝單元 5‧‧‧Denitration unit
6‧‧‧觸媒單元 6‧‧‧catalyst unit
61‧‧‧濾管 61‧‧‧ filter tube
611‧‧‧開口 611‧‧‧ openings
62‧‧‧觸媒 62‧‧‧ catalyst
7‧‧‧燃燒單元 7‧‧‧burning unit
8‧‧‧排氣單元 8‧‧‧Exhaust unit
本新型之其他的特徵及功效，將於參照圖式的實施方式中清楚地呈現，其中：圖1是一示意圖，說明一種現有的廢氣除塵設備；圖2是一示意圖，說明本新型具有陶纖濾管之危險事業廢棄物焚化廢氣戴奧辛去除設備的一實施例；及圖3是一示意圖，說明該實施例的一觸媒單元。 Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: FIG. 1 is a schematic diagram illustrating a conventional exhaust gas dedusting apparatus; FIG. 2 is a schematic view showing the present invention having a ceramic fiber An embodiment of a Dashing Removal Apparatus for Incineration Waste Gas Incineration Waste Gas of a Filter Tube; and Figure 3 is a schematic view showing a catalyst unit of the embodiment.
參閱圖2，本新型具有陶纖濾管之危險事業廢棄物焚化廢氣戴奧辛去除設備之一實施例，適用於去除一廢氣中的戴奧辛及粉塵，並包含一適用於將該廢氣降溫到150℃至250℃的降溫單元1、一連通該降溫單元1的脫硫單元2、一連通該脫硫單元2的集塵單元3、一連通該集塵單元3的加活性碳單元4、一連通該加活性碳 單元4的脫硝單元5，及一連通該脫硝單元5的觸媒單元6。 Referring to FIG. 2, an embodiment of the dioxin removal device for incineration waste gas of hazardous industrial waste having a ceramic fiber filter tube is suitable for removing dioxin and dust in an exhaust gas, and comprises a method suitable for cooling the exhaust gas to 150 ° C to a cooling unit 1 at 250 ° C, a desulfurization unit 2 connected to the cooling unit 1 , a dust collecting unit 3 connected to the desulfurization unit 2 , an activated carbon unit 4 connected to the dust collecting unit 3 , and a connecting medium Activated carbon The denitration unit 5 of the unit 4 and a catalyst unit 6 connected to the denitration unit 5.
該降溫單元1適用於連通一用以產生該廢氣的燃燒單元7，在本實施例中，該降溫單元1為一熱交換器，可回收該廢氣中的熱能，並將該廢氣的溫度控制在高於酸露點的溫度，進一步避免硫酸形成於該降溫單元1、該脫硫單元2、該集塵單元3、該加活性碳單元4、該脫硝單元5，及該觸媒單元6的表面並造成酸蝕，能有效延長本實施例的使用壽命。 The cooling unit 1 is adapted to be connected to a combustion unit 7 for generating the exhaust gas. In the embodiment, the temperature reducing unit 1 is a heat exchanger, and the heat energy in the exhaust gas can be recovered, and the temperature of the exhaust gas is controlled. Higher than the acid dew point, further avoiding the formation of sulfuric acid in the cooling unit 1, the desulfurization unit 2, the dust collection unit 3, the activated carbon unit 4, the denitration unit 5, and the surface of the catalyst unit 6. And causing acid etching, can effectively extend the service life of the embodiment.
該脫硫單元2適用於在該廢氣中混合脫硫劑，在本實施例中，是以消石灰作為脫硫劑，藉此吸收該廢氣中的硫氧化物，使該廢氣形成一脫硫氣體，並產生吸附有硫元素的飛灰。 The desulfurization unit 2 is suitable for mixing a desulfurizing agent in the exhaust gas. In the embodiment, the slaked lime is used as a desulfurizing agent, thereby absorbing sulfur oxides in the exhaust gas to form a desulfurization gas. And produce fly ash with sulfur element adsorbed.
該集塵單元3適用於對該脫硫氣體進行高速旋轉，使粉塵脫離該脫硫氣體。在本實施例中，該集塵單元3為一旋風式集塵器，利用該脫硫氣體在高速旋轉時所產生的離心力，分離該脫硫氣體中粒徑較大的粉塵及飛灰，避免該觸媒單元6被粒徑較大的粉塵及飛灰阻塞，能延長該觸媒單元6的使用壽命。 The dust collection unit 3 is adapted to rotate the desulfurization gas at a high speed to remove the dust from the desulfurization gas. In the embodiment, the dust collecting unit 3 is a cyclone type dust collector, and the centrifugal force generated by the desulfurization gas during high-speed rotation is used to separate dust and fly ash having a large particle size in the desulfurization gas, thereby avoiding The catalyst unit 6 is blocked by dust and fly ash having a large particle size, and the service life of the catalyst unit 6 can be prolonged.
該加活性碳單元4適用於在該脫硫氣體中混合活性碳，以活性碳吸附該脫硫氣體中的戴奧辛，能降低該觸媒單元6的負擔，並延長該觸媒單元6的使用壽命。 The activated carbon unit 4 is suitable for mixing activated carbon in the desulfurization gas, adsorbing dioxin in the desulfurization gas with activated carbon, reducing the burden on the catalyst unit 6, and prolonging the service life of the catalyst unit 6. .
該脫硝單元5適用於在該脫硫氣體中混合例如氨氣、尿素，或氨水等的氨基還原劑。氨基還原劑能將該脫硫氣體中有毒的 氮氧化物還原成無毒的氮氣和水，並使該脫硫氣體形成一脫硝氣體。 The denitration unit 5 is suitable for mixing an ammonia reducing agent such as ammonia gas, urea, or ammonia water into the desulfurizing gas. An amino reducing agent can poison the desulfurizing gas The nitrogen oxides are reduced to non-toxic nitrogen and water, and the desulfurized gas is formed into a denitration gas.
參閱圖2與圖3，該觸媒單元6適用於連通一用以排放該脫硝氣體的排氣單元8，並包括多個間隔設置且適用於供該脫硝氣體通過的濾管61，及一附著於該等濾管61的觸媒62。每一個濾管61具有多個相互交織且可耐受高溫的陶瓷纖維(圖未示)，並形成有一朝向該排氣單元8的開口611。在本實施例中，該觸媒62具有二氧化鈦(TiO2)及釩氧化物，並以含浸法使該觸媒62附著於該等濾管61上。 Referring to FIG. 2 and FIG. 3, the catalyst unit 6 is adapted to communicate with an exhaust unit 8 for discharging the denitration gas, and includes a plurality of filter tubes 61 spaced apart and adapted for passage of the denitration gas, and A catalyst 62 attached to the filter tubes 61. Each of the filter tubes 61 has a plurality of ceramic fibers (not shown) which are interwoven and can withstand high temperatures, and are formed with an opening 611 facing the exhaust unit 8. In the present embodiment, the catalyst 62 has titanium dioxide (TiO 2 ) and vanadium oxide, and the catalyst 62 is attached to the filter tubes 61 by an impregnation method.
在實際運作時，該脫硝氣體將沿圖3中箭頭所示的方向通過該等濾管61，並自該等開口611向該排氣單元8流動，在此過程中，未被該集塵單元3分離的粉塵、飛灰及活性碳將被該等濾管61濾除，戴奧辛則被該觸媒62催化而脫離該脫硝氣體。 In actual operation, the denitration gas will pass through the filter tubes 61 in the direction indicated by the arrow in Fig. 3, and flow from the openings 611 to the exhaust unit 8, in the process, without the dust collection. The dust, fly ash and activated carbon separated by the unit 3 will be filtered by the filter tubes 61, and the dioxin will be catalyzed by the catalyst 62 to escape the denitration gas.
在該觸媒單元6中，該等濾管61可使處理後的該脫硝氣體中所含有的粒狀物濃度低於5mg/Nm3，並能去除80%至99%的PM2.5等級(粒徑小於2.5微米)的粉塵，除塵效率極高。另外，該觸媒62在該觸媒單元6中的反應溫度為180℃至230℃，其中，在150℃至200℃時，該觸媒62的戴奧辛去除效率為90%至99%，在200℃至230℃時，該觸媒62的戴奧辛去除效率則可達90%至99.8%。該觸媒62能直接分解該脫硝氣體中的戴奧辛，不需要再以 額外的裝置分解戴奧辛，可降低處理成本。 In the catalyst unit 6, the filter tubes 61 can make the concentration of the particulate matter contained in the denitration gas after treatment less than 5 mg/Nm 3 and can remove the PM 2.5 grade of 80% to 99% ( Dust with a particle size of less than 2.5 microns) has extremely high dust removal efficiency. In addition, the reaction temperature of the catalyst 62 in the catalyst unit 6 is 180 ° C to 230 ° C, wherein, at 150 ° C to 200 ° C, the dioxin removal efficiency of the catalyst 62 is 90% to 99%, at 200 The dioxin removal efficiency of the catalyst 62 can reach 90% to 99.8% at °C to 230 °C. The catalyst 62 can directly decompose the dioxin in the denitration gas, and does not need to decompose dioxin with an additional device, thereby reducing the processing cost.
在本實施例中，以該觸媒62的總重量為100wt%計，該觸媒62具有重量百分比為18wt%至90wt%的二氧化鈦，及重量百分比為4.5wt%至45wt%的釩氧化物。然而，在實際應用中，能依執行需求適當調配該觸媒62的組成物比例，而不以上述比例為限，同樣能達到去除戴奧辛的功效。 In the present embodiment, the catalyst 62 has a weight percentage of 18 wt% to 90 wt% of titanium oxide, and a weight percentage of 4.5 wt% to 45 wt% of vanadium oxide, based on 100 wt% of the total weight of the catalyst 62. However, in practical applications, the composition ratio of the catalyst 62 can be appropriately adjusted according to the execution requirements, and the effect of removing the dioxin can be achieved as well as the above ratio.
須特別說明的是，本新型具有陶纖濾管之危險事業廢棄物焚化廢氣戴奧辛去除設備也可以僅包含該降溫單元1、該集塵單元3、該脫硝單元5，及該觸媒單元6，該觸媒單元6也可以只包括一濾管61，同樣能去除該廢氣中的戴奧辛及粉塵。 It should be particularly noted that the hazardous waste incineration waste gas having the ceramic fiber filter tube may also include only the cooling unit 1, the dust collecting unit 3, the denitration unit 5, and the catalyst unit 6 The catalyst unit 6 may also include only one filter tube 61, and the dioxin and dust in the exhaust gas can also be removed.
綜上所述，本新型具有陶纖濾管之危險事業廢棄物焚化廢氣戴奧辛去除設備藉由能在180℃至230℃的環境裡進行反應的該觸媒62，並配合以陶瓷纖維製成的該等濾管61，使該觸媒62能在較高的反應溫度中直接分解該廢氣中的戴奧辛，並能避免該具有陶纖濾管之危險事業廢棄物焚化廢氣戴奧辛去除設備受到酸蝕。可延長該具有陶纖濾管之危險事業廢棄物焚化廢氣戴奧辛去除設備的使用壽命，並有效降低該廢氣的處理成本，故確實能達成本新型之目的。 In summary, the novel hazardous waste incineration waste gas of the ceramic fiber filter tube is treated by the catalyst 62 which can be reacted in an environment of 180 ° C to 230 ° C and is made of ceramic fiber. The filter tubes 61 enable the catalyst 62 to directly decompose the dioxin in the exhaust gas at a higher reaction temperature, and can avoid the acid etch of the dioxin removal equipment of the hazardous waste incineration waste gas having the ceramic fiber filter. The service life of the dioxin removal equipment of the incineration waste gas of the dangerous industrial waste having the ceramic fiber filter can be prolonged, and the treatment cost of the exhaust gas can be effectively reduced, so that the purpose of the novel can be achieved.
惟以上所述者，僅為本新型之實施例而已，當不能以此限定本新型實施之範圍，凡是依本新型申請專利範圍及專利說明 書內容所作之簡單的等效變化與修飾，皆仍屬本新型專利涵蓋之範圍內。 However, the above descriptions are only examples of the present invention, and the scope of the present invention cannot be limited thereto, and the patent scope and patent description according to the present invention are applicable. The simple equivalent changes and modifications made in the contents of the book are still covered by this new patent.
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| CN112569777A (en) * | 2019-09-27 | 2021-03-30 | 富利康科技股份有限公司 | Water-gas resistant denitration device and catalyst suitable for low-temperature environment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112569777A (en) * | 2019-09-27 | 2021-03-30 | 富利康科技股份有限公司 | Water-gas resistant denitration device and catalyst suitable for low-temperature environment |
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