High-temperature sampling probe for cement kiln gas analyzer

Abstract

The high-temperature sampling probe for the cement kiln gas analyzer comprises a sampling pipe, a gas inlet formed in the lower end of the sampling pipe, a gas outlet formed in the side wall of the upper end of the sampling pipe, a cooling pipe arranged in the sampling pipe, two ends of the cooling pipe extending out of the top end of the sampling pipe, and a filter cartridge sleeved at the lower end of the sampling pipe, a plurality of first filtering holes are formed in the outer wall of the filtering cylinder, an adjusting cylinder is arranged in the filtering cylinder, a plurality of second filtering holes are formed in the outer wall of the adjusting cylinder, and the first filtering holes correspond to the second filtering holes in a one-to-one mode. By moving the adjusting cylinder, after the first filter holes and the second filter holes are staggered, the size of the filter channel can be changed, so that solid particles in smoke can be filtered according to different smoke conditions; and after the flue gas is cooled, the damage of high-temperature gas to electronic components of the analyzer is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of sampling, and particularly relates to a high-temperature sampling probe for a gas analyzer of a cement kiln. Background Art

[0002] In the process of cement production, the cement kiln is the core equipment, and its operation efficiency, product quality and environmental protection emission level are directly related to the economic benefits and social responsibilities of the entire cement production line. When the cement kiln operates at high temperature, a large amount of gas emissions will be generated, and these gases contain various gas components that have important impacts on production optimization, product quality improvement, energy recovery and environmental protection control. Therefore, real-time and accurate monitoring and analysis of the gases emitted by the cement kiln are crucial for improving the overall performance of the cement production line. At present, for the monitoring and analysis of cement kiln gases, traditional gas analyzers and sampling probes are mainly used. However, in a high-temperature environment, the internal sensors and electronic components of existing analyzers are easily damaged, resulting in a decrease in measurement accuracy or even inability to work properly; a large amount of dust is contained in the gases emitted by the cement kiln, and these dusts are easily accumulated inside the sampling probe and the gas analyzer, resulting in an increase in measurement errors. Summary of the Utility Model

[0003] Therefore, the utility model aims to solve the problems in the prior art that high-temperature gases lead to a decrease in measurement accuracy, and dust accumulation inside the probe and the gas analyzer leads to an increase in measurement errors.

[0004] For this purpose, the technical solution adopted is that a high-temperature sampling probe for a gas analyzer of a cement kiln of the utility model includes: a sampling tube, an air inlet is arranged at the lower end of the sampling tube, an air outlet is arranged on the side wall of the upper end of the sampling tube, a cooling tube is arranged inside the sampling tube, both ends of the cooling tube extend out of the top end of the sampling tube, a filter cylinder is sleeved at the lower end of the sampling tube, a plurality of first filter holes are arranged on the outer wall of the filter cylinder, an adjusting cylinder is arranged inside the filter cylinder, a plurality of second filter holes are arranged on the outer wall of the adjusting cylinder, and the plurality of first filter holes and the plurality of second filter holes correspond to each other one by one.

[0005] Preferably, the cooling tube is a U-shaped tube.

[0006] Preferably, the water inlet of the water tank is communicated with one end of the cooling tube, and the water outlet of the water tank is communicated with the other end of the cooling tube.

[0007] Preferably, a mounting plate is arranged on the outer wall of the sampling tube.

[0008] Preferably, a through hole is arranged at the bottom end of the filter cylinder, one end of a sliding column is connected to the bottom end of the adjusting cylinder, the other end of the sliding column passes through the through hole, an annular groove is arranged on the inner wall of the through hole, a plurality of annular protrusions are arranged at intervals on the outer wall of the sliding column, and the annular protrusions are clamped in the annular groove.

[0009] Preferably, a limiting plate is provided at the lower end of the sliding column.

[0010] Preferably, a pull ring is provided at the bottom end of the limiting plate.

[0011] The technical solution of the present utility model has the following advantages: By moving the adjusting cylinder, after the first filter hole and the second filter hole are misaligned, the size of the filtering channel can be changed, so that solid particles in the flue gas can be filtered according to different flue gas conditions; After cooling the flue gas, damage to the electronic components of the analyzer caused by high-temperature gas is avoided.

[0012] Other features and advantages of the present utility model will be described in the following specification, and, in part, will be obvious from the specification, or will be understood by implementing the present utility model. The objectives and other advantages of the present utility model can be achieved and obtained by the structure specifically pointed out in the written specification and the drawings.

[0013] The technical solution of the present utility model will be further described in detail below through the drawings and embodiments. Description of the Drawings

[0014] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is Figure 1 an enlarged view of part A of

[0017] Figure 3 is an installation state diagram of the present utility model;

[0018] Among them, 1. Sampling tube; 2. Air inlet; 3. Air outlet; 4. Cooling tube; 5. Filtering cylinder; 6. First filter hole; 7. Adjusting cylinder; 8. Second filter hole; 9. Water tank; 10. Mounting plate; 11. Through hole; 12. Sliding column; 13. Annular groove; 14. Annular convex block; 15. Limiting plate; 16. Pull ring. Detailed Description of the Embodiments

[0019] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0020] It should be noted that when a component is referred to as "fixed to" or "disposed on" another component, it can be directly on the other component or indirectly on the other component. When a component is referred to as "connected to" another component, it can be directly or indirectly connected to the other component.

[0021] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0022] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality of" means two or more, unless otherwise specifically defined.

[0023] The present invention provides a high-temperature sampling probe for a cement kiln gas analyzer, as Figures 1-3 shown, including: a sampling tube 1, an air inlet 2 is arranged at the lower end of the sampling tube 1, an air outlet 3 is arranged on the side wall of the upper end of the sampling tube 1, a cooling tube 4 is arranged in the sampling tube 1, both ends of the cooling tube 4 extend out of the top of the sampling tube 1, a filter cylinder 5 is sleeved at the lower end of the sampling tube 1, a plurality of first filter holes 6 are arranged on the outer wall of the filter cylinder 5, an adjusting cylinder 7 is arranged in the filter cylinder 5, a plurality of second filter holes 8 are arranged on the outer wall of the adjusting cylinder 7, and the plurality of first filter holes 6 and the plurality of second filter holes 8 correspond to each other one by one. The air outlet 3 is communicated with the air inlet of the Fourier transform infrared gas analyzer, and a jet pump and a valve are arranged in the Fourier transform infrared gas analyzer for controlling the flow rate of the inhaled gas.

[0024] The working principle and beneficial technical effects of the above technical solution: The sampling tube 1 is installed on the gas discharge pipeline of the cement kiln. After the infrared gas analyzer is started, the gas in the discharge pipeline enters the sampling tube 1 after being filtered by the first filter holes 6 and the second filter holes 8. The coolant flows in the cooling tube 4 to cool the high-temperature gas in the sampling tube 1, and then enters the Fourier transform infrared gas analyzer through the air outlet 3 for gas component analysis. By moving the adjusting cylinder 7 to misalign the first filter holes 6 and the second filter holes 8, the size of the filtering channel can be changed, so that the solid particles in the flue gas can be filtered according to different flue gas conditions; after cooling the flue gas, the damage of the high-temperature gas to the electronic components of the analyzer is avoided.

[0025] In one embodiment, the cooling pipe 4 is a U-shaped pipe, such that the coolant can fully contact the high-temperature gas, increasing the contact area between the coolant and the high-temperature gas, thereby enabling faster cooling. The water inlet of the water tank 9 is communicated with one end of the cooling pipe 4, and the water outlet of the water tank 9 is communicated with the other end of the cooling pipe 4. A driving pump is arranged in the water tank 9 for driving the coolant to circulate in the cooling pipe 4. An installation plate 10 is arranged on the outer wall of the sampling pipe 1, and the installation plate 10 is installed on the exhaust pipe by screws.

[0026] In one embodiment, a through hole 11 is arranged at the bottom end of the filter cartridge 5. One end of a sliding column 12 is connected to the bottom end of the adjusting cylinder 7, and the other end of the sliding column 12 passes through the through hole 11. An annular groove 13 is arranged on the inner wall of the through hole 11. A plurality of annular protrusions 14 are arranged at intervals on the outer wall of the sliding column 12, and the annular protrusions 14 are clamped in the annular groove 13. The annular protrusions 14 are made of an elastic material. A limiting plate 15 is arranged at the lower end of the sliding column 12, which serves to limit the displacement of the sliding column. A pull ring 16 is arranged at the bottom end of the limiting plate 15, which is convenient for personnel to pull the pull ring for adjustment. When it is necessary to adjust the size of the filtering channel, the pull ring 16 is pulled to drive the sliding column 12 to move, such that the corresponding annular protrusions 14 are clamped in the annular groove 13, thereby changing the size of the filtering channel, and thus different-sized solid particles in the flue gas can be filtered. After adjustment, the sampling probe is installed on the exhaust pipe of the cement kiln.

[0027] Obviously, those skilled in the art can make various modifications and variations to the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and their equivalent technologies, the present utility model also intends to include these modifications and variations.

Claims

1. A high temperature sampling probe for cement kiln gas analyzer, characterized in that: include: A sampling tube (1), wherein an air inlet (2) is arranged at the lower end of the sampling tube (1), an air outlet (3) is arranged on the side wall of the upper end of the sampling tube (1), a cooling tube (4) is arranged inside the sampling tube (1), both ends of the cooling tube (4) extend out of the top end of the sampling tube (1), a filter cartridge (5) is sleeved at the lower end of the sampling tube (1), a plurality of first filter holes (6) are arranged on the outer wall of the filter cartridge (5), an adjustment cartridge (7) is arranged inside the filter cartridge (5), a plurality of second filter holes (8) are arranged on the outer wall of the adjustment cartridge (7), and the plurality of first filter holes (6) and the plurality of second filter holes (8) correspond one to one.

2. The high temperature sampling probe for cement kiln gas analyzer according to claim 1 is characterized in that: The cooling tube (4) is a U-shaped tube.

3. The high temperature sampling probe for cement kiln gas analyzer according to claim 1 is characterized in that: The water inlet of the water tank (9) is communicated with one end of the cooling pipe (4), and the water outlet of the water tank (9) is communicated with the other end of the cooling pipe (4).

4. The high temperature sampling probe for cement kiln gas analyzer according to claim 1, characterized in that: A mounting plate (10) is arranged on the outer wall of the sampling tube (1).

5. The high temperature sampling probe for cement kiln gas analyzer according to claim 1, characterized in that: A through hole (11) is provided at the bottom end of the filter cylinder (5), one end of a slide column (12) is connected to the bottom end of the adjustment cylinder (7), the other end of the slide column (12) passes through the through hole (11), an annular groove (13) is provided on the inner wall of the through hole (11), a plurality of annular protrusions (14) are provided at intervals on the outer wall of the slide column (12), and the annular protrusions (14) are clamped in the annular grooves (13).

6. The high temperature sampling probe for cement kiln gas analyzer according to claim 5, characterized in that: A limiting plate (15) is arranged at the lower end of the sliding column (12).

7. The high temperature sampling probe for cement kiln gas analyzer according to claim 6, characterized in that: A pull ring (16) is arranged at the bottom end of the limiting plate (15).

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