TWM539982U - Exhaust gas treatment device for glass industry - Google Patents

Description

Waste gas treatment device for glass industry

The present invention relates to an exhaust gas treatment device, and more particularly to an exhaust gas treatment device for the glass industry.

In the production process of glass kiln, a large amount of energy is consumed, and the pollutants generated by fuel combustion contain dust and acid gases (for example, nitrogen oxides such as NO, NO ₂ , NO ₃ and N ₂ O, SO ₂ , SO) ₃ sulfur oxides), in order to make the gas discharged from the glass furnace can meet environmental standards, the factory will be equipped with an exhaust gas treatment device.

Referring to FIG. 1 , a conventional glass exhaust gas treatment device 9 comprises: a kiln 91, an electric precipitator 92, a denitrification unit 93, a desulfurization unit 94, a dust bag 95 and a Chimney 96. The kiln 91 has a combustion chamber 911, and the glass material can be melted in the combustion chamber 911 to form a molten slurry for further forming a finished glass product. The denitration unit 93 has a denitration space 931 and a denitration agent inlet 932. The denitration space 931 is provided with a honeycomb-shaped denitration catalyst, and the denitration agent input port 932 is connected to the denitration space 931, so that the worker can input a denitration agent through the denitration agent input port 932 ( For example, ammonia gas, liquid ammonia, ammonia water or urea), the denitration agent and the denitration catalyst can be denitrified together in the denitration space 931 to remove nitrogen oxides of the exhaust gas in the denitration space 931. The desulfurization unit 94 has a desulfurization space 941 and a desulfurization agent inlet 942. The desulfurization agent inlet 942 communicates with the desulfurization space 941, so that the worker can put in the desulfurization agent inlet 942. a desulfurizing agent (for example, slaked lime, sodium hydrogencarbonate or sodium hydroxide), and the desulfurization reaction can be carried out in the desulfurization space 941 to remove the exhaust gas in the desulfurization space 941. Sulfur oxides and produce particulate matter such as gypsum.

The exhaust gas formed by burning the glass raw material in the combustion chamber 911 enters the electrostatic precipitator 92 to remove dust in the exhaust gas by a negative high-voltage electric field inside the electrostatic precipitator 92, and the dust-removed exhaust gas continues to enter the denitration component. The denitration space 931 of 93 is subjected to the action of the denitration agent and the denitration catalyst to remove nitrogen oxides in the exhaust gas, and continues to enter the desulfurization space 941 of the desulfurization unit 94 to remove sulfur oxides therein. Then, after the particulate matter such as gypsum is filtered by the dust collecting bag 95, the clean air which meets the air discharge standard can be discharged to the atmosphere via the chimney 96.

However, the exhaust gas treatment device 9 of the conventional glass industry can remove the dust in the exhaust gas by the electrostatic precipitator 92, but the effect of the electrostatic precipitator 92 is still not good, and it is deposited on the electrode plate under long-term use. The dust on the dust will affect the dust removal effect. Moreover, the exhaust gas treatment device 9 of the conventional glass industry needs to additionally provide the denitration member 93 and the desulfurization member 94, and the structure is slightly complicated to increase the conventional glass industry. The installation cost of the exhaust gas treatment device 9. In view of this, it is indeed necessary to provide an exhaust gas treatment device for the glass industry to improve the above problems.

In order to solve the above problems, the present invention provides an exhaust gas treatment device for the glass industry, which can effectively remove pollutants in the exhaust gas (for example, acid gases such as dust, nitrogen oxides and sulfur oxides).

The present invention further provides an exhaust gas treatment device for the glass industry, which has a simplified component and thus can reduce the installation cost.

The invention relates to a glass industry exhaust gas treatment device, comprising: a kiln having a combustion chamber therein; a ceramic fiber filter connected to the combustion chamber of the kiln by a first exhaust pipe, the ceramic fiber filter The method comprises at least one ceramic fiber filter tube, wherein the at least one ceramic fiber filter tube is formed by a plurality of ceramic fibers and a plurality of denitration catalyst particles, and the plurality of denitration catalyst particles are attached to the surface of the plurality of ceramic fibers. The first exhaust pipe has a denitration agent input port and a desulfurization agent input port; and a chimney is connected to the ceramic fiber filter by a second exhaust pipe; thus, the waste gas of the glass industry of the present invention The device can not only effectively remove dust and acid gas and other pollutants in the exhaust gas by means of several denitration catalyst particles attached to the surface of the plurality of ceramic fibers, but also eliminate complicated desulfurization parts and denitration parts. The setting, while reducing the installation cost of the exhaust gas treatment device of the glass industry, is the effect of the creation.

In an exhaust gas treatment device of the glass industry, the waste gas treatment device of the glass industry comprises a first heat exchanger and a second heat exchanger, and the first heat exchanger is disposed on the first exhaust pipe, The second heat exchanger is disposed in the second exhaust pipe, so that the hot gas in the high-temperature exhaust gas and the high-temperature clean air can be recovered, thereby achieving the effect of energy recovery and reuse.

In the glass gas exhaust gas treatment device of the present invention, the desulfurizing agent input port is located between the denitration agent input port and the ceramic fiber filter, or the denitration agent input port is located at the desulfurizing agent input port and the Between the ceramic fiber filters, the worker can select the denitration input port and the setting position of the desulfurization input port according to the requirements, so that the waste gas treatment device of the glass industry of the present invention has a better possibility of setting changes.

[this creation]

1‧‧‧Kilns

11‧‧‧ combustion chamber

2‧‧‧Ceramic fiber filter

21‧‧‧Ceramic fiber filter tube

211‧‧‧Ceramic fiber

212‧‧‧Denitration catalyst particles

3‧‧‧ chimney

H1‧‧‧ first heat exchanger

H2‧‧‧ second heat exchanger

W1‧‧‧first exhaust pipe

W2‧‧‧Second exhaust pipe

O1‧‧‧Denitration agent input

O2‧‧‧desulfurizer input

[study]

9‧‧‧The exhaust gas treatment device of the glass industry

91‧‧‧Kilns

911‧‧‧ combustion chamber

92‧‧‧Electric precipitator

93‧‧‧Denitration parts

931‧‧‧Denitration space

932‧‧‧Denitration input

94‧‧‧Desulfurization parts

941‧‧‧desulfurization space

942‧‧‧Desulfurizer input

95‧‧‧ dust bag

96‧‧‧ chimney

Fig. 1 is a schematic view of an exhaust gas treatment device of the conventional glass industry.

Fig. 2 is a schematic view showing an exhaust gas treating apparatus of a glass industry according to an embodiment of the present invention.

Fig. 3 is a side cross-sectional view showing the ceramic fiber filter of the exhaust gas treatment device of the glass industry of Fig. 2.

In order to make the above and other objects, features and advantages of the present invention more comprehensible, the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The exhaust gas treatment device of the glass industry according to an embodiment of the present invention may include: a kiln 1, a ceramic fiber filter 2, and a chimney 3, the kiln 1 is connected to the ceramic fiber filter by a first exhaust pipe W1. 2. The ceramic fiber filter 2 is connected to the chimney 3 by a second exhaust pipe W2.

In detail, the kiln 1 has a combustion chamber 11, and a worker can place a glass raw material (for example, cerium, calcium carbonate, sodium carbonate, etc.) in the combustion chamber 11, and make the glass raw material The molten slurry is melted at a high temperature of 800 ° C to further form a finished glass product.

The exhaust gas generated by the high-temperature melting of the glass raw material can flow to the ceramic fiber filter 2 via the first exhaust pipe W1. In this embodiment, the exhaust gas treatment device of the glass industry preferably includes a first heat exchanger H1 disposed on the first exhaust pipe W1 to reduce the temperature of the exhaust gas to At about 380 ° C, the exhaust gas can enter the ceramic fiber filter 2 at a suitable temperature, not only can maintain the good filtration effect of the ceramic fiber filter 2, but also can avoid excessive temperature (for example, above 380 ° C) The temperature) causes a decrease in the effectiveness or failure of the denitration catalyst particles 212 of the ceramic fiber filter 2 (described in detail below).

Moreover, the first exhaust pipe W1 may have a denitration agent inlet O1 and a desulfurizer inlet O2, and the denitration agent inlet O1 and the desulfurizer inlet O2 are located in the furnace 1 and the Between the ceramic fiber filters 2, and respectively for the workers to use a denitrification agent (for example, ammonia, liquid ammonia, ammonia or urea and other amino reducing agents) and a desulfurizing agent (for example, slaked lime, sodium bicarbonate And an alkali agent such as sodium hydroxide) is introduced into the first exhaust pipe W1, and the denitration agent and the desulfurizing agent charged into the first exhaust pipe W1 can be driven by the exhaust gas along the first row The gas pipe W1 flows to the ceramic fiber filter 2. In the present embodiment, the desulfurizer input port O2 is located between the denitration agent input port O1 and the ceramic fiber filter 2, but the person having the usual knowledge can also put the denitration agent into the mouth O1 as needed. It is provided between the desulfurizer input port O2 and the ceramic fiber filter 2, and is not limited thereto.

Referring to FIGS. 2 and 3, the ceramic fiber filter 2 may include at least one ceramic fiber filter tube 21, which is composed of a plurality of ceramic fibers 211 and a plurality of denitration catalyst particles 212. Forming, the plurality of denitration catalyst particles 212 are attached to the surface of the plurality of ceramic fibers 211, so that the plurality of denitration catalyst particles 212 can be evenly distributed on the ceramic fiber filter tube 21 to enhance the plurality of denitration touches. The contact area of the media particles 212 with the exhaust gas.

In this way, in addition to filtering and removing dust in the exhaust gas, the nitrogen oxides in the exhaust gas can be selectively catalytically reduced by the denitration agent and the denitration catalyst particles 212. The method (SCR) is converted into nitrogen which is non-toxic and can be directly discharged into the atmosphere, and the sulfur oxides in the exhaust gas can be converted into solid calcium sulfate or gypsum (calcium sulfate dihydrate) under the action of the desulfurizing agent. And the ceramic fiber filter 21 is filtered and removed, and the denitration agent which is supplied through the denitration agent inlet O1 and the desulfurizing agent which is supplied through the desulfurization agent inlet O2 are collectively used in the ceramic fiber filter 2. Under the action, the pollutants in the exhaust gas (for example, dust, nitrogen oxides and sulfur oxides) can be efficiently removed, and can form a clean gas and flow to the chimney via the second exhaust pipe W2. .

Referring again to FIG. 2, the clean gas can be directly discharged to the atmosphere through a second exhaust pipe W2, and discharged to the atmosphere; however, since the temperature of the air filtered through the ceramic fiber filter 2 is about 330. °C, in this embodiment, the exhaust gas treatment package of the glass industry comprises a second heat exchanger H2, and the second heat exchanger H2 is disposed in the second exhaust pipe W2 to further reduce the temperature of the clean gas. Therefore, the heat energy carried by the clean gas can be further recovered, and the recovery efficiency of the heat energy can be improved.

In summary, in the waste gas treatment device of the glass industry of the present invention, the setting of the ceramic fiber filter can effectively filter and remove the dust in the exhaust gas generated by the high-temperature melting of the glass raw material, and the denitration agent is put into the mouth. The plurality of denitration catalyst particles attached to the surface of the plurality of ceramic fibers can effectively convert the nitrogen oxides in the exhaust gas into nitrogen gas which is non-toxic and can be directly discharged to the atmosphere, and the desulfurizing agent is simultaneously The inlet and the ceramic fiber filter can effectively convert the sulfur oxides in the exhaust gas into solid calcium sulfate or gypsum which can be easily removed by filtration, so that the dust and acid gas in the exhaust gas can be efficiently removed. Contaminants are the efficacy of this creation.

Furthermore, in the exhaust gas treatment device of the glass industry of the present invention, it is only necessary to provide the denitration agent input port and the desulfurization agent input port in the first exhaust pipe, and the table of the plurality of ceramic fibers. The plurality of denitration catalyst particles are attached to the surface, so that the acid gas in the exhaust gas can be efficiently removed, and the complicated desulfurization and denitration components in the exhaust gas treatment device of the conventional glass industry can be eliminated. Achieve simplification of the device and reduce the cost of device setup.

In addition, the waste gas treatment device of the glass industry of the present invention can further recover the heat energy of the exhaust gas and the clean gas by the arrangement of the first heat exchanger and the second heat exchanger, thereby reducing energy generated by heat dissipation. Waste can further achieve the effect of energy recycling.

Although the present invention has been disclosed by the above-described preferred embodiments, it is not intended to limit the present invention, and it is still within the spirit and scope of the present invention to make various changes and modifications to the above embodiments. The technical scope of the protection is created, so the scope of protection of this creation is subject to the definition of the patent application scope attached.

1‧‧‧Kilns

11‧‧‧ combustion chamber

2‧‧‧Ceramic fiber filter

21‧‧‧Ceramic fiber filter tube

3‧‧‧ chimney

H1‧‧‧ first heat exchanger

H2‧‧‧ second heat exchanger

W1‧‧‧first exhaust pipe

W2‧‧‧Second exhaust pipe

O1‧‧‧Denitration agent input

O2‧‧‧desulfurizer input

Claims (5)

An exhaust gas treatment device for a glass industry, comprising: a kiln having a combustion chamber therein; a ceramic fiber filter connected to the combustion chamber of the kiln by a first exhaust pipe, the ceramic fiber filter comprising at least one ceramic a fiber filter tube, the at least one ceramic fiber filter tube is formed by a plurality of ceramic fibers and a plurality of denitration catalyst particles, and the plurality of denitration catalyst particles are attached to the surface of the plurality of ceramic fibers, the first row The gas pipe has a denitration agent input port and a desulfurization agent input port, the denitration agent input port and the desulfurizer input port are located between the furnace and the ceramic fiber filter; and a chimney, A second exhaust pipe communicates with the ceramic fiber filter. The waste gas treatment device of the glass industry according to claim 1, wherein the waste gas treatment device of the glass industry comprises a first heat exchanger, and the first heat exchanger is disposed in the first exhaust pipe. The waste gas treatment device of the glass industry according to claim 1, wherein the waste gas treatment device of the glass industry comprises a second heat exchanger, and the second heat exchanger is disposed in the second exhaust pipe. The waste gas treatment device of the glass industry according to claim 1, wherein the desulfurization agent inlet is located between the denitration agent inlet and the ceramic fiber filter. The waste gas treatment device of the glass industry according to the first aspect of the invention, wherein the denitration agent inlet is located between the desulfurizer input port and the ceramic fiber filter.