Sampling device for measuring chloride ions in blast furnace gas

Abstract

The utility model relates to the technical field of gas detection, and discloses a sampling device for measuring chloride ions in blast furnace gas, which comprises a first chloride ion absorption bottle, the top of the first chloride ion absorption bottle is fixedly connected with a first gas delivery pipe, one end of the first gas delivery pipe is fixedly connected with a dehumidification mechanism, and the other end of the first gas delivery pipe is fixedly connected with a second gas delivery pipe. One side of the dehumidification mechanism is fixedly connected with a water vapor conveying pipe, the output end of the water vapor conveying pipe is sleeved with a condensate water collecting tank, the bottom of the condensate water collecting tank is in contact connection with a support, the top of the first chloride ion absorption bottle is fixedly connected with a main air inlet pipe, and one end of the main air inlet pipe is fixedly connected with a filtering mechanism. According to the sampling device for measuring the chloride ions in the blast furnace gas, by arranging the water vapor conveying pipe, the condensate water collecting tank, the filtering mechanism and the like, impurities can be effectively filtered out before the gas enters the main gas inlet pipe, meanwhile, moisture in the gas can be effectively removed before the gas enters the gas meter, and the accuracy of a test result is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas detection, in particular to a sampling device for measuring chloride ions in blast furnace gas. Background Technique

[0002] As an important industrial by-product, blast furnace gas is widely used in the iron and steel production process. However, blast furnace gas contains a certain amount of chloride ions. If these chloride ions are directly discharged or utilized without treatment, they will have an adverse impact on the environment and equipment. Therefore, accurate and efficient sampling and detection of chloride ions in blast furnace gas are crucial for ensuring the stability of the production process and environmental protection.

[0003] After consulting the relevant patent document CN206348186U, there are still some problems with the existing sampling device for measuring chloride ions in blast furnace gas. The current optimization solutions on the market are mainly as follows: The gas enters the chloride ion absorption bottle through the sampling port valve adjustment. After the chloride ions in the gas are absorbed, the gas is metered by a wet gas meter and then discharged to the high-altitude atmosphere through a gas high-level discharge pipe. It can safely and conveniently sample the blast furnace gas, and obtain the chloride ion concentration in the gas through the chloride ion content absorbed in the chloride ion absorption bottle and the gas flow measured by the gas meter, so as to realize the control of the chloride ion concentration. However, when this sampling device processes the gas, since the gas may contain particulate matter and impurities, it will cause errors in the sampling test results, and the moisture usually contained in the gas will also affect the chloride ion test. To solve the above problems, by setting a steam pipeline, a condensate collection tank, a filtering mechanism, etc., the gas can be effectively filtered for impurities before entering the main inlet pipe, and at the same time, the moisture in the gas can be effectively removed before entering the gas meter, improving the accuracy of the test results. Content of the Utility Model

[0004] To solve the above technical problems, the utility model provides a sampling device for measuring chloride ions in blast furnace gas.

[0005] To achieve the above object, the present utility model provides the following technical solutions: A sampling device for measuring chloride ions in blast furnace gas, including a first chloride ion absorption bottle. The top of the first chloride ion absorption bottle is fixedly connected with a first gas pipeline. One end of the first gas pipeline is fixedly connected with a dehumidification mechanism. One side of the dehumidification mechanism is fixedly connected with a second gas pipeline. One end of the second gas pipeline is fixedly connected with a second chloride ion absorption bottle. The top of the second chloride ion absorption bottle is fixedly connected with an intake pipe. One end of the intake pipe is fixedly connected with a gas meter. One side of the gas meter is fixedly connected with an exhaust pipe. One side of the dehumidification mechanism is fixedly connected with a water vapor pipeline. The output end of the water vapor pipeline is sleeved with a condensate collection tank. The bottom of the condensate collection tank is in contact connection with a bracket. The top of the first chloride ion absorption bottle is fixedly connected with a main intake pipe. One end of the main intake pipe is fixedly connected with a filtering mechanism.

[0006] As a further improvement of the above solution, a heating wire is fixedly connected to the bottom of the dehumidification mechanism. The bottom of the heating wire is fixedly connected with a heater. The output end of the water vapor pipeline is fixedly connected with a condensation plate. The circumferential side of the condensation plate is fixedly connected with an aggregation shell.

[0007] As a further improvement of the above solution, the upper end of the aggregation shell is larger in diameter than the lower end. One end of the bracket away from the condensate collection tank is fixedly connected with the heater.

[0008] As a further improvement of the above solution, the main intake pipe is located on the opposite side of the first gas pipeline. A filter plate is slidably connected inside the filtering mechanism. A filter net is clamped inside the filter plate. One side of the filter net is fixedly connected with a fixed angle iron. The fixed angle iron is fixedly connected to the surface of the filter plate through a fastening bolt.

[0009] As a further improvement of the above solution, a cover plate is fixedly connected to one side of the filter plate. A slider is fixedly connected to the surface of the filter plate. The fixed angle irons are symmetrically distributed with the filter net as the axis. A slide bar passes through the inside of the slider. The slide bar is slidably connected with the slider.

[0010] As a further improvement of the above solution, a telescopic spring is sleeved on the surface of the slide bar. One end of the telescopic spring is fixedly connected to the surface of the slider, and the other end is fixedly connected to the inner wall of the filtering mechanism. A limiting groove is opened on the inner wall of the filter plate.

[0011] As a further improvement of the above solution, a convex block meshing with the limiting groove is fixedly connected to one side of the filter net. The limiting grooves are symmetrically distributed with the filter plate as the axis. Limiting slide plates are respectively fixedly connected to the upper end and the lower end of the filter plate, and corresponding sliding grooves are opened on the inner wall of the filtering mechanism.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. For this sampling device for measuring chloride ions in blast furnace gas, when sampling chloride ions in the gas, first connect the gas valve port to the interface of the filtering mechanism. Then, when the gas passes through the inside of the filtering mechanism, it will pass through the surface of the filter screen. After being filtered by the filter screen, the particulate matter and impurities in the gas can be effectively filtered. When there is a lot of debris accumulated on the surface of the filter screen, pull out the cover plate at this time, so that the filter plate slides out from the inside of the filtering mechanism, which is convenient for replacing the filter screen, reducing the maintenance cost. At the same time, after the replacement is completed, loosen the cover plate. At this time, under the action of the telescopic spring, the filter plate is reset, avoiding the use of bolts for fixation, improving the installation efficiency. At the same time, the size of the set cover plate is sufficient to cover the size of the slotted opening, ensuring the airtightness.

[0014] 2. For this sampling device for measuring chloride ions in blast furnace gas, when the gas passes through the first chloride absorption bottle and then passes through the inside of the dehumidifying mechanism through the first gas pipeline, at this time, under the action of the heater, the heating wire is heated, thereby appropriately heating the gas inside the dehumidifying mechanism. At this time, the water vapor in the gas will diffuse to the surface of the condensation plate through the water vapor pipeline and start to liquefy, and then flow into the condensate collection tank. The setting of the gathering shell avoids the diffusion of water vapor to the outside, ensuring the safety of dehumidification and improving the dehumidification efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the front view of the present utility model;

[0016] Figure 2 is the structural schematic diagram of the dehumidifying mechanism of the present utility model;

[0017] Figure 3 is the internal structural schematic diagram of the filtering mechanism of the present utility model;

[0018] Figure 4 is the schematic diagram of the connection mode of the filter plate and the filter screen of the present utility model;

[0019] Figure 5 is the internal structural schematic diagram of the filter plate of the present utility model;

[0020] Figure 6 is the top structural schematic diagram of the water vapor pipeline of the present utility model.

[0021] MAIN SYMBOL DESCRIPTION:

[0022] 1. First chloride ion absorption bottle; 2. First gas transmission pipe; 3. Dehumidification mechanism; 301. Heating wire; 302. Heater; 4. Second gas transmission pipe; 5. Second chloride ion absorption bottle; 6. Air inlet pipe; 7. Gas meter; 8. Exhaust pipe; 9. Water vapor transmission pipe; 901. Condensation plate; 902. Converging shell; 10. Condensation mechanism; 11. Condensate collection tank; 12. Bracket; 13. Total air inlet pipe; 14. Filtration mechanism; 141. Filter plate; 142. Filter net; 143. Fixed angle iron; 144. Cover plate; 145. Slide block; 146. Slide bar; 147. Telescopic spring; 148. Limit groove. Detailed implementation manners

[0023] Next, in combination with the accompanying drawings and specific implementation manners, the present utility model will be further described. It should be noted that, on the premise of no conflict, the following-described embodiments or technical features can be arbitrarily combined to form new embodiments. Embodiment

[0024] Please refer to Figures 1-5 , A sampling device for measuring chloride ions in blast furnace gas in this embodiment includes a first chloride ion absorption bottle 1. The top of the first chloride ion absorption bottle 1 is fixedly connected to a first gas transmission pipe 2. One end of the first gas transmission pipe 2 is fixedly connected to a dehumidification mechanism 3. One side of the dehumidification mechanism 3 is fixedly connected to a second gas transmission pipe 4. One end of the second gas transmission pipe 4 is fixedly connected to a second chloride ion absorption bottle 5. The top of the second chloride ion absorption bottle 5 is fixedly connected to an air inlet pipe 6. One end of the air inlet pipe 6 is fixedly connected to a gas meter 7. One side of the gas meter 7 is fixedly connected to an exhaust pipe 8. One side of the dehumidification mechanism 3 is fixedly connected to a water vapor transmission pipe 9. The output end of the water vapor transmission pipe 9 is sleeved with a condensate collection tank 11. The bottom of the condensate collection tank 11 is in contact connection with a bracket 12. The top of the first chloride ion absorption bottle 1 is fixedly connected to a total air inlet pipe 13. One end of the total air inlet pipe 13 is fixedly connected to a filtration mechanism 14.

[0025] The bottom of the dehumidification mechanism 3 is fixedly connected to a heating wire 301. The bottom of the heating wire 301 is fixedly connected to a heater 302. The output end of the water vapor transmission pipe 9 is fixedly connected to a condensation plate 901. The circumferential side of the condensation plate 901 is fixedly connected to a converging shell 902.

[0026] The upper end of the converging shell 902 has a larger diameter than the lower end. One end of the bracket 12 away from the condensate collection tank 11 is fixedly connected to the heater 302.

[0027] The main air intake pipe 13 is located on the opposite side of the first air supply pipe 2. A filter plate 141 is slidably connected to the inside of the filter mechanism 14. A filter screen 142 is clamped inside the filter plate 141. A fixed angle iron 143 is fixedly connected to one side of the filter screen 142. The fixed angle iron 143 is fixedly connected to the surface of the filter plate 141 by fastening bolts.

[0028] A cover plate 144 is fixedly connected to one side of the filter plate 141, a slider 145 is fixedly connected to the surface of the filter plate 141, the fixed angle irons 143 are symmetrically distributed with the filter screen 142 as the axis, a slide rod 146 runs through the interior of the slider 145, and the slide rod 146 is slidably connected to the slider 145.

[0029] A telescopic spring 147 is sleeved on the surface of the slide rod 146 , one end of the telescopic spring 147 is fixedly connected to the surface of the slider 145 , and the other end is fixedly connected to the inner wall of the filter mechanism 14 . A limiting groove 148 is provided on the inner wall of the filter plate 141 .

[0030] A protrusion engaged with the limit groove 148 is fixedly connected to one side of the filter screen 142. The limit groove 148 is symmetrically distributed with the filter plate 141 as the axis. The upper and lower ends of the filter plate 141 are respectively fixedly connected to the limit slide plate, and a corresponding slide groove is opened on the inner wall of the filter mechanism 14.

[0031] The working principle of a sampling device for determining chloride ions in blast furnace gas in the embodiment of the present application is as follows: when sampling chloride ions in the gas, the gas valve port is first connected to the interface of the filter mechanism 14. Then, when the gas passes through the inside of the filter mechanism 14, it will pass through the surface of the filter 142. After being filtered by the filter 142, the particulate matter and impurities in the gas can be effectively filtered. When a lot of debris accumulates on the surface of the filter 142, the cover 144 is pulled out at this time, so that the filter plate 141 slides out from the inside of the filter mechanism 14, which is convenient for replacing the filter 142 and reduces the maintenance cost. After the replacement is completed, the cover 144 is loosened, and the telescopic spring 147 is used to make the filter plate 141 slide out of the filter mechanism 14. The filter plate 141 is reset to avoid the use of bolts for fixing, thereby improving the installation efficiency. At the same time, the size of the cover plate 144 is sufficient to cover the size of the slot, so that the air tightness is guaranteed. When the coal gas passes through the first chloride ion absorption bottle 1 and passes through the first gas pipe 2 through the dehumidification mechanism 3, the heating wire 301 is heated by the heater 302, thereby properly heating the coal gas inside the dehumidification mechanism 3. At this time, the water vapor in the coal gas will diffuse to the surface of the condensation plate 901 through the water vapor gas pipe 9, and will begin to liquefy, and then will flow into the condensed water collection tank 11. The setting of the gathering shell 902 avoids the diffusion of water vapor to the outside, thereby ensuring the safety of dehumidification and improving the dehumidification efficiency.

[0032] The above embodiments are only the preferred embodiments of the present utility model, and the scope of protection of the present utility model cannot be limited thereby. Any non-substantial changes and substitutions made by those skilled in the art based on the present utility model fall within the scope of protection required by the present utility model.

Claims

1. A sampling device for measuring chloride ions in blast furnace gas, characterized in that: The invention comprises a first chloride ion absorption bottle (1), wherein the top of the first chloride ion absorption bottle (1) is fixedly connected to a first gas transmission pipe (2), one end of the first gas transmission pipe (2) is fixedly connected to a dehumidification mechanism (3), one side of the dehumidification mechanism (3) is fixedly connected to a second gas transmission pipe (4), one end of the second gas transmission pipe (4) is fixedly connected to a second chloride ion absorption bottle (5), the top of the second chloride ion absorption bottle (5) is fixedly connected to an air intake pipe (6), one end of the air intake pipe (6) is fixedly connected to a gas meter (7), one side of the gas meter (7) is fixedly connected to an exhaust pipe (8), one side of the dehumidification mechanism (3) is fixedly connected to a water vapor gas transmission pipe (9), the output end of the water vapor gas transmission pipe (9) is sleeved with a condensate collection tank (11), the bottom of the condensate collection tank (11) is contact-connected with a bracket (12), the top of the first chloride ion absorption bottle (1) is fixedly connected to a main air intake pipe (13), and one end of the main air intake pipe (13) is fixedly connected to a filtering mechanism (14).

2. A sampling device for measuring chloride ions in blast furnace gas as claimed in claim 1, characterized in that: The bottom of the dehumidification mechanism (3) is fixedly connected to a heating wire (301), the bottom of the heating wire (301) is fixedly connected to a heater (302), the output end of the water vapor gas transmission pipe (9) is fixedly connected to a condensation plate (901), and the circumferential side of the condensation plate (901) is fixedly connected to a gathering shell (902).

3. A sampling device for measuring chloride ions in blast furnace gas as claimed in claim 2, characterized in that: The upper end of the gathering shell (902) has a larger diameter than the lower end, and one end of the bracket (12) away from the condensed water collection tank (11) is fixedly connected to the heater (302).

4. A sampling device for measuring chloride ions in blast furnace gas as claimed in claim 1, characterized in that: The main air intake pipe (13) is located on a side opposite to the first air delivery pipe (2); a filter plate (141) is slidably connected to the interior of the filter mechanism (14); a filter screen (142) is clamped to the interior of the filter plate (141); a fixed angle iron (143) is fixedly connected to one side of the filter screen (142); and the fixed angle iron (143) is fixedly connected to the surface of the filter plate (141) by means of fastening bolts.

5. A sampling device for measuring chloride ions in blast furnace gas as claimed in claim 3, characterized in that: A cover plate (144) is fixedly connected to one side of the filter plate (141), a slider (145) is fixedly connected to the surface of the filter plate (141), the fixed angle irons (143) are symmetrically distributed with the filter screen (142) as the axis, a slide rod (146) passes through the interior of the slide rod (145), and the slide rod (146) is slidably connected to the slide rod (145).

6. A sampling device for measuring chloride ions in blast furnace gas as claimed in claim 4, characterized in that: A telescopic spring (147) is sleeved on the surface of the slide rod (146); one end of the telescopic spring (147) is fixedly connected to the surface of the slide block (145), and the other end is fixedly connected to the inner wall of the filter mechanism (14); a limiting groove (148) is provided on the inner wall of the filter plate (141).

7. A sampling device for measuring chloride ions in blast furnace gas as claimed in claim 4, characterized in that: A protrusion meshing with the limiting groove (148) is fixedly connected to one side of the filter screen (142); the limiting groove (148) is symmetrically distributed with the filter plate (141) as the axis; the upper end and the lower end of the filter plate (141) are respectively fixedly connected to limiting slide plates, and a corresponding slide groove is provided on the inner wall of the filter mechanism (14).

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