TWI400327B - Coke oven door contaminated contaminant sampling equipment - Google Patents

Description

Coking oven door escape pollutant sampling equipment

The invention relates to a pollutant sampling device, in particular to a coke oven door escape pollutant sampling device.

For the measurement of air pollutants in the coke oven door, the conventional technology uses the adsorption tube or the sampling barrel to collect the atmosphere in the environment around the coke oven chamber, and then analyzes the gas composition by gas chromatography (GC-MS); Or measure with an optical instrument. However, these prior art techniques have the following disadvantages: 1. The collected sample is likely to contain exhaust gas adjacent to the exhaust source, which is prone to misjudgment of gas components; 2. The amount of fugitive gas cannot be known, so the furnace door cannot be accurately provided. Quantitative analysis of bulk materials.

Therefore, it is necessary to provide an innovative and progressive coke oven door escape pollutant sampling device to solve the above problems.

The invention provides a coke oven door escape pollutant sampling device, the coke oven door has a door frame, the door frame has a frame top and two frame sides of the two sides, and the coke oven door escape pollutant sampling device comprises: A gas production unit, a gas transmission unit and a gas collection unit. The gas collecting unit has a top portion and a bottom portion, and the top portion has a through hole, and the gas collecting unit is at least in close contact with the frame top and the frame edges. The gas delivery unit is configured to input a carrier gas into the gas collection unit. The gas collecting unit is connected to the through hole for collecting fugitive pollutants from the coke oven door.

The coke oven door escape pollutant sampling device of the invention can only provide at least one fixed group on the door frame of the coke oven without changing the existing furnace door structure and the existing working procedure, and at least the frame of the gas collecting unit A sealing unit is arranged between the top and the sides of the frame to increase the airtightness of the gas collecting unit and the coke oven door, so that the air pollutants escaping due to poor airtightness of the furnace door can be quickly and accurately measured. The qualitative and quantitative analysis of the pollutants in the coke oven door escape air is obtained to provide the basis for estimating the emission factor value of the coke oven door escape pollutant.

Moreover, the material of the coke oven door escape pollutant sampling device of the present invention is a high temperature resistant material, and is suitable for measurement work in any high temperature environment (for example, an industry using automatic switchgear can also be applied). Furthermore, the gas collecting unit can be composed of a plurality of unitized gas collecting hoods, so that installation and disassembly are relatively easy.

1A is a schematic view showing the arrangement of the coke oven door escape pollutant sampling device of the present invention for sampling at a coke oven door; FIG. 1B is a cross-sectional view taken along line 1B-1B of FIG. 1A. 1A and 1B, the coke oven door has a door frame 2 having a frame top 21 and two frame sides 22 on both sides. In the present embodiment, the coke oven door escape pollutant sampling device 1 includes a gas recovery unit 11, a gas delivery unit 12, a gas collection unit 13, a sealing unit 14, and an analysis system 15. Among the components of the coke oven door fugitive pollutants, it includes at least dust, volatile organic compounds (VOCs) and heavy metal mercury.

The gas collecting unit 11 has a top portion 111 and a bottom portion 112. The top portion 111 has a through hole 1111. The gas collecting unit 11 is at least in close contact with the frame top 21 and the frame edges 22. The gas collecting unit 11 further includes at least one fixing group 113. Each fixing group 113 has a plurality of fixed end elements 1131 and at least one fixing element 1132. The fixed end elements 1131 are disposed on the frame edges 22, and the at least one fixed portion The two ends of the element 1132 are fixed to the fixed end elements 1131 (for example, the notches of the two ends of the at least one fixing element 1132 are fixed to the rod-shaped fixed end elements 1131), and the at least one fixing element 1132 is in contact with The gas collecting unit 11 is compressed.

In the present embodiment, the door frame 2 is a dome-shaped structure, and the gas collecting unit 11 has a dome-shaped structure and has at least one through hole 114, and the dome-shaped structure opening of the gas collecting unit 11 is opposite to the door frame 2 The gas collecting unit 11 is disposed in the opening of the dome structure of the door frame 2.

In this embodiment, the gas collecting unit 11 includes a plurality of gas collecting hoods 115 and a plurality of fixed groups 113. The gas collecting hoods 115 are sequentially stacked, and each of the gas collecting hoods 115 is fixed to the door frame 2 by at least one fixing group 113. In the present embodiment, each of the gas collecting hoods 115 is fixed to the door frame 2 by a plurality of fixing groups 113.

Referring to Figures 2 and 3, preferably, a plurality of mats 16 are disposed between the opposing gas collecting hoods 115. The mats 16 may use non-stone packing to increase the air tightness between the gas collecting hoods 115, thus facilitating quantitative analysis of air pollutants in subsequent coke oven doors. Preferably, each of the gas collecting hoods 115 has a first side edge 1151 and a second side edge 1152. The first side edge 1151 has a first sealing structure 1153, and the second side edge 1152 has a shape. In conjunction with the second sealing structure 1154 of the first sealing structure 1153, the second sealing structure 1154 of each of the upper upper gas collecting hoods 115 is coupled to the first sealing structure 1153 of each of the opposite lower gas collecting hoods 115.

In this embodiment, the first sealing structure 1153 is a groove, the second sealing structure 1154 is a flange, and the mat 16 is disposed on the first sealing structure 1153 of the upper and lower corresponding gas collecting hoods 115 and the Between the second sealing structures 1154, the airtightness between the gas collecting hoods 115 can be increased.

In this embodiment, the gas collecting unit 11 includes six gas collecting hoods 115, which is convenient for personnel to carry and install, and the working site only needs to stack the gas collecting hoods 115 in sequence to complete the installation quickly. operation. In order to strengthen the structural strength of the gas collecting hoods 115, it is preferable to add a reinforcing structure to each of the gas collecting hoods 115 (for example, a gas collecting cover of a dome-shaped structure and a door angle iron). Moreover, the thickness of each gas collecting hood 115 is preferably within 1.6 mm to control the weight of the gas collecting hood 115.

Referring again to FIGS. 1A and 1B, the gas delivery unit 12 is configured to input a carrier gas (eg, high pressure air) into the gas collection unit 11, and the gas collection unit 13 is connected to the through hole 1111 for collecting the coke oven door Scattered pollutants. The carrying gas provides a carrying force required to collect the pollutants of the coke oven door to carry out the escaped pollutants of the coke oven door and is led out from the through hole 1111 to the gas collecting unit 13, the gas collecting unit 13 The mixed gas of the carrier gas and the furnace door fugitive air pollutants is then directed to the analysis system 15 for measurement.

In this embodiment, the sealing unit 14 is disposed between the gas collecting unit 11 and the frame top 21 and the frame edges 22 (it is understood that the gas collecting unit 11 and the frame bottom of the door frame 2 are also The sealing unit 14 may be added, and the sealing unit 14 is in a letter shape. Preferably, the sealing unit 14 is a non-stone wool woven rope. The sealing unit 14 can increase the airtightness between the gas collecting unit 11 and the frame top 21 and the frame edges 22 (or the entire door frame 2), thereby facilitating quantitative analysis of air pollutants discharged from the subsequent coke oven door. .

In this embodiment, the analysis system 15 is connected to the gas collection unit 13 and the gas collection unit 11 for analyzing data of one of the pollutants of the coke oven door. The analysis system 15 includes a flow meter 151, a thermometer 152, at least one pressure gauge 153, an air pollutant analysis device 154, a fan 155, and an anemometer 156. The flow meter 151 and the thermometer 152 are disposed between the through hole 1111 and an outlet of the gas collecting unit 13. The at least one pressure gauge 153 is disposed in the at least one through hole 114, and the fan 155 is disposed adjacent to the set. An outlet of the gas unit 13, the anemometer 156 is disposed adjacent to the fan 155. The air pollutant analysis device 154 is connected to the flow meter 151, the thermometer 152, the at least one pressure gauge 153, the fan 155 and the anemometer 156 for analyzing the flow meter 151, the thermometer 152, the at least one pressure The meter 153, the fan 155 and the anemometer 156 measure the data.

The data includes at least one of a flow rate, a temperature, a pressure, a composition, and a composition of the pollutants of the coke oven door. In the present embodiment, the analysis system 15 provides measurement of basic data (such as flow rate, temperature, pressure, etc.) of the outflowing gas (mixed gas of the carrier gas and the oven door fugitive air pollutant), and also includes the Qualitative and quantitative analysis of the pollutants in the coke oven door (component and composition content).

In this embodiment, in order to ensure that the pressure between the gas collecting unit 11 and the furnace door is a normal pressure environment during the sampling process, the gas collecting unit 11 is provided with the through hole 114 for pressure testing, and is measured by the at least one pressure gauge 153. The flow rate of the appropriate carrier gas can be adjusted to avoid the leakage of the pollutants of the original coke oven door due to the installation of the pollutant sampling device 1 of the coke oven door.

The coke oven door escape pollutant sampling device 1 of the present invention can only provide at least one fixing group 113 on the door frame of the coke oven without changing the existing furnace door structure and the existing operating procedures, and at least the gas collecting unit 11 A sealing unit 14 is disposed between the frame top 21 and the frame edges 22 to increase the airtightness of the gas collecting unit 11 and the coke oven door, so that the airtightness of the furnace door can be quickly and accurately measured. The air pollutants are dissipated, and the qualitative and quantitative analysis of the air pollutants in the coke oven door are obtained to provide the basis for estimating the emission coefficient of the coke oven door escape pollutants.

Moreover, the material of the coke oven door escape pollutant sampling device 1 of the present invention is a high temperature resistant material, and is suitable for measurement operations in any high temperature environment (for example, an industry using an automatic switching device is also applicable). Furthermore, the gas collecting unit 11 can be composed of a plurality of unitized gas collecting hoods 115, so that it is easy to install and disassemble.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the scope of the present invention. The scope of the invention should be as set forth in the appended claims.

1. . . Coking oven door escape pollutant sampling device of the invention

11. . . Gas production unit

12. . . Gas transmission unit

13. . . Gas gathering unit

14. . . Sealing unit

15. . . analysis system

16. . . Mat

111. . . Top of gas production unit

112. . . Bottom of gas production unit

113. . . Fixed group

114. . . Through hole

115. . . Gas hood

151. . . Flow meter

152. . . thermometer

153. . . pressure gauge

154. . . Air pollutant analysis device

155. . . fan

156. . . Anemometer

1111. . . Through hole

1131. . . Fixed end component

1132. . . Fixed component

1151. . . First side edge of the gas collecting hood

1152. . . Second side edge of the gas collecting hood

1153. . . First sealing structure

1154. . . Second sealing structure

1A is a schematic view showing the configuration of a coke oven door escape pollutant sampling device of the present invention for sampling at a coke oven door;

Figure 1B shows a cross-sectional view taken along line 1B-1B of Figure 1A;

Figure 2 is a schematic view showing the mat of the present invention disposed between the gas collecting hoods; and

Figure 3 is a schematic view showing the second sealing structure of the gas collecting hood of the present invention.

1. . . Coking oven door escape pollutant sampling device of the invention

11. . . Gas production unit

12. . . Gas transmission unit

13. . . Gas gathering unit

14. . . Sealing unit

15. . . analysis system

111. . . Top of gas production unit

112. . . Bottom of gas production unit

113. . . Fixed group

114. . . Through hole

115. . . Gas hood

151. . . Flow meter

152. . . thermometer

153. . . pressure gauge

154. . . Air pollutant analysis device

155. . . fan

156. . . Anemometer

1111. . . Through hole

1131. . . Fixed end component

1132. . . Fixed component

Claims (14)

A coke oven door escape pollutant sampling device, the coke oven door has a door frame, the door frame has a frame top and two frame sides of the two sides, the coke oven door escape pollutant sampling device comprises: a gas recovery unit a top portion and a bottom portion, the top portion having a through hole, the gas collecting unit being at least in close contact with the frame top and the frame edges; a gas delivery unit for inputting a carrier gas into the gas collecting unit; And a gas gathering unit connected to the through hole for collecting pollutants from the coke oven door. The pollutant sampling device of claim 1, wherein the door frame and the gas collecting unit are in a dome-shaped structure, and the dome-shaped structure opening of the gas collecting unit is open to the dome-shaped structure of the door frame, and the gas collecting unit is disposed at the The dome of the door frame is inside the opening. The pollutant sampling device of claim 1, wherein the gas collecting unit further comprises at least one fixed group, each fixed group having a plurality of fixed end members and at least one fixing member, wherein the fixed end members are disposed at the side of the frame. The two ends of the at least one fixing member are fixed to the fixed end members, and the at least one fixing member contacts and presses the gas collecting unit. The pollutant sampling device of claim 3, wherein the gas collecting unit comprises a plurality of gas collecting hoods and a plurality of fixed groups, wherein the gas collecting hoods are sequentially stacked, and each gas collecting hood is fixed to at least one fixed group The door frame. The pollutant sampling device of claim 4, wherein each gas collecting hood is fixed to the door frame by a plurality of fixing groups. The contaminant sampling device of claim 4, wherein each of the gas collecting hoods has a first side edge and a second side edge, the first side edge having a first sealing structure, the second side edge having a shape In cooperation with the second sealing structure of the first sealing structure, the second sealing structure of each of the upper upper gas collecting hoods is combined with the first sealing structure of each of the opposite lower gas collecting hoods. The contaminant sampling device of claim 6 further comprising a plurality of mats disposed between the opposing gas collecting hoods. The pollutant sampling device of claim 1, further comprising a sealing unit disposed between the gas collecting unit and the top of the frame and the sides of the frame. The contaminant sampling device of claim 8, wherein the sealing unit is a gland packing. The pollutant sampling device of claim 1, further comprising an analysis system connected to the gas collection unit for analyzing data of one of the fugitive pollutants of the coke oven door. The pollutant sampling device of claim 10, wherein the gas collecting unit further comprises at least one through hole, the analysis system comprising a flow meter, a thermometer, at least one pressure gauge and an air pollutant analyzing device, the flow meter and the a thermometer is disposed between the through hole and one of the outlets of the gas collecting unit, the at least one pressure gauge is disposed in the at least one through hole, and the air pollutant analyzing device is connected to the flow meter, the thermometer and the at least one pressure gauge . The pollutant sampling device of claim 11, wherein the analysis system further comprises a fan and an anemometer disposed near an outlet of the gas collection unit, the anemometer being disposed adjacent to the fan. The pollutant sampling device of claim 11, wherein the data includes at least one of a flow rate, a temperature, a pressure, a composition, and a component content of the coke oven door escape pollutant. The contaminant sampling device of claim 13, wherein the component of the coke oven door fugitive contaminant comprises at least dust, volatile organic compounds (VOCs) and heavy metal mercury.