Tail gas treatment device for testing infrared sulfur detector / infrared hydrocarbon instrument

Abstract

An infrared sulfur meter / infrared hydrocarbon meter test tail gas treatment device comprises an activated carbon adsorption tank, a sodium hydroxide elimination barrel and a connecting guide pipe, activated carbon is placed in the activated carbon adsorption tank, a gas guide pipe connected with an infrared sulfur meter / infrared hydrocarbon meter tail gas exhaust pipe is arranged at the bottom of the activated carbon adsorption tank, and a gas outlet pipe is arranged at the top of the activated carbon adsorption tank. A sodium hydroxide solution is contained in the sodium hydroxide eliminating barrel, an air inlet pipe and an exhaust pipe are arranged on the top of the sodium hydroxide eliminating barrel, a bottom port of the air inlet pipe is immersed in the sodium hydroxide solution, and a bottom port of the exhaust pipe is located above the liquid level of the sodium hydroxide solution. The connecting conduit is connected with the air outlet pipe of the activated carbon adsorption tank and the upper port of the air inlet pipe of the sodium hydroxide elimination barrel. According to the utility model, the test tail gas of the infrared sulfur detector / infrared hydrocarbon instrument can be effectively treated, the adverse effects of the test tail gas of harmful gases such as carbon dioxide, sulfur dioxide and nitrogen oxide on human bodies and the environment are reduced and eliminated, and the body health of detection personnel and the environment are protected.

Description

Technical Field

[0001] The utility model relates to an exhaust gas treatment device, in particular to an exhaust gas treatment device for testing an infrared sulfur analyzer / infrared carbon and hydrogen analyzer, and belongs to the production and manufacturing technical field of coal detection auxiliary equipment and facilities. Background Art

[0002] In the prior art, the determination of sulfur, carbon and hydrogen elements contained in coal is usually carried out by an infrared sulfur analyzer and an infrared carbon and hydrogen analyzer.

[0003] The working principle of the infrared sulfur analyzer for determining sulfur elements in coal is as follows:

[0004] Let the coal sample burn sufficiently in a high-temperature furnace filled with oxygen to generate CO 2 , SO 2 and nitrogen oxides and other gases. Then, remove the dust in these gases, and use anhydrous magnesium perchlorate as a desiccant to remove the moisture in these gases. Then, let them enter the infrared absorption cell to absorb infrared rays of a specific wavelength. At the same time, detect the specific infrared rays absorbed by SO 2 in the infrared absorption cell, and convert the electrical signals generated by the intensity of the specific infrared rays before and after being absorbed by SO 2 into digital signals by an A / D converter for calculation by a computer to obtain the content of sulfur elements in the tested coal sample.

[0005] SO 2 is a bipolar molecule, and all bipolar molecules have the characteristic of absorbing infrared rays of a specific wavelength. According to the Lambert-Beer law, different gases have different absorption bands in the infrared region, and in a specific band, the infrared light intensity absorbed by the gas is in a certain functional relationship with its concentration. For SO 2 molecules, they have characteristic absorption of infrared rays with a wavelength of 7.4 mm. Therefore, by analyzing the change in the electrical signal of the infrared rays with a wavelength of 7.4 mm before and after being absorbed by SO 2 in the infrared absorption cell, the percentage content of the SO 2 gas concentration can be analyzed and calculated, and finally the percentage content of sulfur elements in the tested sample can be indirectly determined.

[0006] During the detection process, although the SO 2 gas absorbs infrared light and its energy changes, it will not undergo a chemical change because of this. Therefore, after the detection, the SO 2 will be discharged directly through the tail gas pipe of the infrared sulfur analyzer together with the gas containing CO 2 and nitrogen oxides and other substances as test tail gas, thus causing harm to the human body and the environment.

[0007] The working principle of the infrared carbon and hydrogen analyzer for determining carbon and hydrogen elements is basically the same as that of the infrared sulfur analyzer for determining sulfur elements, that is, the coal sample is fully burned in a high-temperature furnace filled with oxygen, and calcium oxide is added to the high-temperature furnace to absorb sulfides, so that the carbon, hydrogen, and nitrogen elements in the coal sample respectively generate bipolar molecules CO 2 , water vapor, and nitrogen oxide gases. Then, the dust in these gases is removed, and then they are allowed to enter two series-connected infrared absorption cells, allowing CO 2 gas and water vapor to absorb infrared rays of specific wavelengths corresponding to their respective absorptions. At the same time, the intensities of infrared rays of specific wavelengths before and after being absorbed by CO 2 gas and water vapor in the two infrared absorption cells are detected, and the electrical signals generated by the intensities of the two specific-wavelength infrared rays are converted into digital signals by an A / D converter for calculation by a computer to obtain the contents of carbon and hydrogen elements in the coal sample to be tested.

[0008] And the gas containing CO 2 , water vapor, and various nitrogen oxides after detection is directly discharged as test tail gas through the tail gas pipe of the infrared carbon and hydrogen analyzer.

[0009] In the prior art, the commonly used infrared sulfur analyzers and infrared carbon and hydrogen analyzers generally do not have tail gas treatment devices, including the LECOS-114DR type infrared sulfur analyzer, the 5E-IRS3600 infrared sulfur analyzer, the SDIS401 infrared sulfur determinator, etc.

[0010] And we know that sulfur dioxide (SO 2 ) gas is acidic and is one of the main pollutants in the atmosphere. It can react with other substances in the air to form tiny sulfite and sulfate particles. When these particles are inhaled by the human body, they will accumulate in the lungs, causing respiratory symptoms and diseases, leading to difficulty in breathing and being one of the causes of premature death; while carbon dioxide (CO 2 ) gas is a well-known greenhouse gas that has a great impact on the climate; nitrogen oxides (NO X ) mainly include nitric oxide (NO), nitrous oxide (N 2 O), nitrogen dioxide (NO 2 ), dinitrogen trioxide (N 2 O 3 ), dinitrogen tetroxide (N 2 O 4 ), and dinitrogen pentoxide (N 2 O 5 ) and other compounds, which are one of the main pollutants in the atmosphere. The composition of this waste gas is complex and highly polluting. Therefore, if such waste gas is directly discharged, it will pose a great threat to human health and the environment.

[0011] In the prior art, for an infrared sulfur analyzer or an infrared carbon and hydrogen analyzer to complete one test, the required coal sample is usually about 350 mg. Obviously, in a laboratory with a large sample volume, the amount of test exhaust gas generated after the test will be very large. If these exhaust gases cannot be effectively treated, in the long run, it will cause harm to the bodies of the test personnel. Even if these exhaust gases are discharged outdoors through the exhaust pipe, they will still cause environmental pollution. Utility Model Content

[0012] To overcome the deficiencies of the prior art, the present utility model particularly provides a device for treating the test exhaust gas of an infrared sulfur analyzer / infrared carbon and hydrogen analyzer to reduce and eliminate the adverse effects of the test exhaust gas of the infrared sulfur analyzer / infrared carbon and hydrogen analyzer on the human body and the environment, protect the physical health of the detection personnel, and protect the environment.

[0013] To achieve the above object, the following technical solutions are particularly provided:

[0014] A device for treating the test exhaust gas of an infrared sulfur analyzer / infrared carbon and hydrogen analyzer, which is used for purifying the exhaust gas released when detecting the sulfur / carbon and hydrogen element contents of a coal sample by an infrared sulfur analyzer / infrared carbon and hydrogen analyzer, includes:

[0015] An activated carbon adsorption tank, a sodium hydroxide elimination barrel, and a connecting conduit;

[0016] In the activated carbon adsorption tank, activated carbon is placed inside, a gas guide pipe is provided at the bottom, and an air outlet pipe is provided at the top. The gas guide pipe is used to connect with the exhaust gas pipe of the infrared sulfur analyzer / infrared carbon and hydrogen analyzer;

[0017] In the sodium hydroxide elimination barrel, sodium hydroxide solution not exceeding 2 / 3 of the barrel height is filled inside. An air inlet pipe and an exhaust pipe are provided at the top. The bottom port of the air inlet pipe is immersed in the sodium hydroxide solution, and the bottom port of the exhaust pipe is above the liquid level of the sodium hydroxide solution;

[0018] The connecting conduit connects the air outlet pipe of the activated carbon adsorption tank and the upper port of the air inlet pipe of the sodium hydroxide elimination barrel.

[0019] Further, the activated carbon adsorption tank includes a tank body and a tank cover. The bottom of the tank body is communicated with the gas guide pipe. The tank cover covers the upper part of the tank body. The air outlet pipe is installed on the tank cover and is in communication with the tank body.

[0020] Further, a carbon cage is also provided inside the tank body. The carbon cage is used for loading the activated carbon. The carbon cage includes a cage barrel with through holes and a flange ring protruding outward on the upper edge of the cage barrel. The carbon cage is suspended in the tank body through its flange ring.

[0021] Further, the tail gas treatment device for the infrared sulfur analyzer / infrared carbon and hydrogen analyzer further includes a support for supporting and arranging the tank body.

[0022] Further, the sodium hydroxide elimination barrel includes a barrel body and a barrel cover. The barrel body is used for containing the sodium hydroxide solution, and the barrel cover covers the barrel body. The air inlet pipe and the exhaust pipe are respectively installed on the barrel cover in an inserted manner, and an exhaust valve is further provided on the exhaust pipe outside the barrel cover.

[0023] Further, a sand core funnel is further provided at the bottom port of the air inlet pipe, and a gas collecting hood is further provided at the bottom port of the exhaust pipe.

[0024] Further, a liquid discharge port is further provided at the bottom of the barrel body of the sodium hydroxide elimination barrel, and a switching valve is provided on the liquid discharge port.

[0025] Further:

[0026] The tail gas treatment device for the infrared sulfur analyzer / infrared carbon and hydrogen analyzer is further provided with a monitor;

[0027] The monitor includes a monitoring bottle, a bottle cap and a pH electrode. The bottom of the monitoring bottle is communicated with the liquid discharge port of the sodium hydroxide elimination barrel through the switching valve and can introduce the sodium hydroxide solution. The bottle cap covers the monitoring bottle. The pH electrode is inserted through the bottle cap and its electrode is immersed in the sodium hydroxide solution, and its upper end is communicated with the main body of an external pH tester through a cable. A drain valve is further provided at the bottom of the monitoring bottle.

[0028] Further:

[0029] The tail gas treatment device for the infrared sulfur analyzer / infrared carbon and hydrogen analyzer further includes a containing box;

[0030] The containing box is used for containing the activated carbon adsorption tank, the sodium hydroxide elimination barrel and the monitor. A gas guiding valve is further provided on the gas guiding pipe of the activated carbon adsorption tank. The gas guiding valve, the exhaust valve of the sodium hydroxide elimination barrel and the drain valve of the monitor are respectively outside the box body of the containing box, and the main body of the pH tester is arranged on the box panel of the containing box.

[0031] Optionally:

[0032] The containing box is arranged on a trolley; or

[0033] The bottom of the containing box is provided with rollers, and a push handle is further provided on one side of the box body of the containing box.

[0034] Compared with the prior art, the beneficial effects and progress of the present utility model are as follows:

[0035] The exhaust gas treatment device for infrared sulfur analyzer / infrared carbon and hydrogen analyzer provided by the utility model includes an activated carbon adsorption tank, a sodium hydroxide elimination barrel and a connecting conduit. Among them, the activated carbon adsorption tank contains activated carbon inside, has a gas guide pipe at the bottom and an air outlet pipe at the top. The gas guide pipe is used to connect with the exhaust pipe of the infrared sulfur analyzer / infrared carbon and hydrogen analyzer. The sodium hydroxide elimination barrel is filled with sodium hydroxide solution not exceeding 2 / 3 of the height inside the barrel, has an air inlet pipe and an exhaust pipe at the top, and the bottom port of the air inlet pipe is immersed in the sodium hydroxide solution. The bottom port of the exhaust pipe is above the liquid level of the sodium hydroxide solution. The connecting conduit connects the air outlet pipe of the activated carbon adsorption tank with the upper port of the air inlet pipe of the sodium hydroxide elimination barrel;

[0036] It can be seen that through the exhaust gas treatment device for infrared sulfur analyzer / infrared carbon and hydrogen analyzer provided by the utility model, after the test exhaust gas of the infrared sulfur analyzer / infrared carbon and hydrogen analyzer is adsorbed and treated by the activated carbon in the activated carbon adsorption tank, most of the carbon dioxide, sulfur dioxide and nitrogen oxide gases therein can be adsorbed and removed, and the remaining small amount of harmful gases can be further chemically digested and dissolved in the sodium hydroxide solution filled in the sodium hydroxide elimination barrel, so as to effectively reduce and eliminate the adverse effects of the test exhaust gas of the infrared sulfur analyzer / infrared carbon and hydrogen analyzer on the human body and the environment, protect the health of the detection personnel and the environment, and the device has a simple structure, is easy to manufacture and use, is easy to maintain, has obvious and reliable effects, has substantial progress and positive social significance compared with the prior art, so it has great value for popularization and application. Description of the Drawings

[0037] To more clearly illustrate the technical solutions of the present utility model, the drawings required for the embodiments of the present utility model will be briefly introduced below.

[0038] Obviously:

[0039] The drawings in the following description are only partial embodiment drawings of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings, but these other drawings also belong to the drawings required for the embodiments of the present utility model.

[0040] Figure 1 It is a schematic structural diagram of an exhaust gas treatment device for an infrared sulfur analyzer / infrared carbon and hydrogen analyzer provided by an embodiment of the present utility model;

[0041] Figure 2 It is a schematic structural diagram of the carbon cage of an exhaust gas treatment device for an infrared sulfur analyzer / infrared carbon and hydrogen analyzer provided by an embodiment of the present utility model.

[0042] Figure 3 Schematic structural diagram of the carbon cage of a tail gas treatment device for an infrared sulfur analyzer / infrared carbon and hydrogen analyzer with a monitor provided by an embodiment of the present invention.

[0043] Figure 4 Schematic structural diagram of the carbon cage of a tail gas treatment device for an infrared sulfur analyzer / infrared carbon and hydrogen analyzer with a receiving box provided by an embodiment of the present invention.

[0044] In the figure:

[0045] 100 - activated carbon adsorption tank, 101 - gas guide pipe, 102 - air outlet pipe, 103 - gas guide valve, 110 - tank body, 120 - tank cover, 130 - carbon cage, 131 - cage barrel, 132 - flange ring, 140 - support;

[0046] 200 - sodium hydroxide elimination barrel, 201 - intake pipe, 202 - exhaust pipe, 203 - exhaust valve, 204 - sand core funnel, 205 - gas collection hood, 210 - barrel body, 211 - liquid discharge port, 212 - switch valve, 220 - barrel cover;

[0047] 300 - connecting conduit;

[0048] 400 - monitor, 410 - monitoring bottle, 411 - evacuation valve, 420 - bottle cap, 431 - pH electrode, 432 - main body of pH tester;

[0049] 500 - receiving box, 510 - rollers, 520 - push handle. Detailed implementation manners

[0050] To make the objectives, technical solutions, beneficial effects, and remarkable progress of the embodiments of the present invention clearer, hereinafter, with reference to the accompanying drawings provided for the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be described clearly and completely. Obviously, all the described embodiments are only partial embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0051] It should be noted that:

[0052] The terms "including" and any variations thereof in the description and claims of the present invention are intended to cover non - exclusive inclusion. For example, it includes not only a series of listed technical features and structural components, but also optionally includes technical features and structural components that are not listed, or optionally further includes the connection relationships between these technical features and structural components.

[0053] It should be understood that in the description of the embodiments of the present utility model, the directional or positional terms such as "upper", "lower", "inner", "outer", etc. are only based on the orientation or positional relationship shown in the drawings of the embodiments of the present utility model, and are for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element must have a specific orientation, specific orientation structure and operation. Therefore, it should not be construed as a limitation to the present utility model.

[0054] In the present utility model, unless otherwise clearly specified and defined, terms such as "arranged", "provided with" should be understood in a broad sense. For example, it can be fixedly arranged, or detachably and movably arranged, or a fixed connection relationship that becomes an integral body, and the connection therein can be a direct connection, or an indirect connection through an intermediate medium, or it can be the communication inside two structural elements or the interaction relationship between two elements. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0055] It should also be noted that the following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.

[0056] Next, the technical solutions of the present utility model will be described in detail with specific embodiments.

[0057] Embodiment

[0058] This embodiment provides an infrared sulfur analyzer / infrared carbon and hydrogen analyzer test tail gas treatment device for purifying the tail gas released during the detection of sulfur / carbon and hydrogen element contents in coal samples by an infrared sulfur analyzer / infrared carbon and hydrogen analyzer.

[0059] As Figure 1 shown in the structural schematic diagram of an infrared sulfur analyzer / infrared carbon and hydrogen analyzer test tail gas treatment device provided by the embodiment of the present utility model:

[0060] An infrared sulfur analyzer / infrared carbon and hydrogen analyzer test tail gas treatment device includes:

[0061] An activated carbon adsorption tank 100, a sodium hydroxide elimination barrel 200, and a connecting conduit 300;

[0062] The activated carbon adsorption tank 100 has activated carbon placed inside (not shown in the figure), a gas guide pipe 101 is provided at its bottom, and an air outlet pipe 102 is provided at its top. The gas guide pipe 101 is used to connect to the tail gas exhaust pipe of an infrared sulfur analyzer (not shown in the figure) / infrared carbon and hydrogen analyzer (not shown in the figure);

[0063] The sodium hydroxide elimination barrel 200 is filled with sodium hydroxide solution not exceeding 2 / 3 of its barrel height. An air inlet pipe 201 and an exhaust pipe 202 are provided at its top. The bottom port of the air inlet pipe 201 is immersed in the sodium hydroxide solution, and the bottom port of the exhaust pipe 202 is above the liquid level of the sodium hydroxide solution.

[0064] The connecting conduit 300 connects the outlet pipe 102 of the activated carbon adsorption tank 100 to the upper port of the air inlet pipe 201 of the sodium hydroxide elimination barrel 200.

[0065] From Figure 1 It can also be seen that in the exhaust gas treatment device for the infrared sulfur analyzer / infrared carbon and hydrogen analyzer provided in this embodiment:

[0066] The activated carbon adsorption tank 100 includes a tank body 110 and a tank cover 120. The bottom of the tank body 110 is communicated with the air guide pipe 101. The tank cover 120 is covered on the upper part of the tank body 110. The outlet pipe 102 is installed on the tank cover 120 and is in communication with the tank body 110.

[0067] And it also includes a support 140, which is used to support and place the tank body 110.

[0068] The sodium hydroxide elimination barrel 200 includes a barrel body 210 and a barrel cover 220. The barrel body 210 is used to hold the sodium hydroxide solution. The barrel cover 220 is covered on the barrel body 210. The air inlet pipe 201 and the exhaust pipe 202 are respectively installed on the barrel cover 220 in an inserted manner. An exhaust valve 203 is also provided on the exhaust pipe 202 outside the barrel cover 220.

[0069] A sand core funnel 204 is also provided at the bottom port of the air inlet pipe 201, which can play a role in filtering and maintaining stable air flow.

[0070] A gas collecting hood 205 is also provided at the bottom port of the exhaust pipe 202, which can play a role in enriching the gas released from the sodium hydroxide solution so as to be discharged from the exhaust pipe more quickly.

[0071] A drain port 211 is also provided at the bottom of the barrel body 210 of the sodium hydroxide elimination barrel 200, and a switch valve 212 is provided on the drain port 211, so that the expired sodium hydroxide solution can be discharged more conveniently, and the sodium hydroxide elimination barrel can be washed and cleaned conveniently, and then newly prepared sodium hydroxide solution can be added to restore its working ability.

[0072] From the above description, it can be seen that:

[0073] Through the exhaust gas treatment device for infrared sulfur analyzers / infrared carbon and hydrogen analyzers provided in this embodiment, most of the carbon dioxide, sulfur dioxide, and nitrogen oxide gases in the exhaust gas tested by the infrared sulfur analyzer / infrared carbon and hydrogen analyzer can be adsorbed and removed by the activated carbon in the activated carbon adsorption tank, while the remaining small amount of harmful gases are further chemically digested and dissolved in the sodium hydroxide solution filled in the sodium hydroxide elimination barrel, thereby effectively reducing and eliminating the adverse effects of the exhaust gas tested by the infrared sulfur analyzer / infrared carbon and hydrogen analyzer on the human body and the environment, protecting the physical health of the detection personnel and the environment;

[0074] In addition, it can be seen that the exhaust gas treatment device for infrared sulfur analyzers / infrared carbon and hydrogen analyzers provided in this embodiment has a simple structure, is convenient to manufacture and use, easy to maintain and repair, and has obvious and reliable effects. Compared with the prior art, it has substantial progress and positive social significance, so it has great value for popularization and application.

[0075] Further, as Figure 2 shown in the structural schematic diagram of the carbon cage of an exhaust gas treatment device for an infrared sulfur analyzer / infrared carbon and hydrogen analyzer provided by an embodiment of the present invention:

[0076] In the exhaust gas treatment device for infrared sulfur analyzers / infrared carbon and hydrogen analyzers provided in this embodiment, a carbon cage 130 is further provided in the tank body 110. The carbon cage 130 is used to load activated carbon (not shown in the figure). The carbon cage 130 includes a cage barrel 131 with through holes and a flange ring 132 protruding outward on the upper edge of the cage barrel 131. The carbon cage 130 is suspended in the tank body 110 through its flange ring 132.

[0077] Obviously, concentrating the activated carbon in the activated carbon adsorption tank with a carbon cage and suspending it in the tank body, and allowing the exhaust gas tested entering the activated carbon adsorption tank to pass through the activated carbon from the bottom and the periphery of the carbon cage can effectively increase the passing area of the activated carbon, thereby improving the working efficiency of the activated carbon adsorption tank.

[0078] Further, as Figure 3 shown in the structural schematic diagram of the carbon cage of an exhaust gas treatment device for an infrared sulfur analyzer / infrared carbon and hydrogen analyzer with a monitor provided by an embodiment of the present invention:

[0079] The exhaust gas treatment device for infrared sulfur analyzers / infrared carbon and hydrogen analyzers provided in this embodiment is further provided with a monitor 400;

[0080] The monitor 400 includes a monitoring bottle 410, a bottle cap 420, and a pH electrode 431. The bottom of the monitoring bottle 410 is communicated with the liquid discharge port 211 of the sodium hydroxide elimination barrel 200 through a switching valve 212 and can introduce sodium hydroxide solution. The bottle cap 420 covers the monitoring bottle 410. The pH electrode 431 is inserted through the bottle cap 420, and its electrode is immersed in the sodium hydroxide solution, while its upper end is communicated with an external pH tester main body (not shown in the figure) through a cable. A drain valve 411 is also provided at the bottom of the monitoring bottle 410.

[0081] By setting up the monitor, the sodium hydroxide solution in the sodium hydroxide elimination barrel enters the monitoring bottle, and the pH value of the sodium hydroxide solution is monitored in real time with the pH electrode of the pH tester, so that the working condition of the tail gas treatment device can be effectively grasped. When the displayed pH value of the sodium hydroxide solution ≤ 7, the sodium hydroxide solution must be replaced or re-prepared.

[0082] Furthermore, as Figure 4 shown in the structural schematic diagram of the carbon cage of the infrared sulfur analyzer / infrared carbon and hydrogen analyzer test tail gas treatment device with a containing box provided by the embodiment of the present utility model:

[0083] The infrared sulfur analyzer / infrared carbon and hydrogen analyzer test tail gas treatment device provided by this embodiment further includes a containing box 500, which is used to contain the activated carbon adsorption tank 100, the sodium hydroxide elimination barrel 200, and the monitor 400. A gas guiding valve 103 is also provided on the gas guiding pipe 101 of the activated carbon adsorption tank 100. The gas guiding valve 103, the exhaust valve 203 of the sodium hydroxide elimination barrel 200, and the drain valve 411 of the monitor 400 are respectively located outside the box body of the containing box 500, while the pH tester main body 432 is arranged on the box panel of the containing box 500.

[0084] Obviously, by containing the activated carbon adsorption tank, the sodium hydroxide elimination barrel, and the monitor in the containing box, not only can the main functional components of the infrared sulfur analyzer / infrared carbon and hydrogen analyzer test tail gas treatment device provided by this embodiment be centrally managed to ensure the safety of the components, but also the laboratory environment can be effectively improved and the safety of the operators can be ensured.

[0085] Furthermore, as Figure 4 shown:

[0086] The containing box 500 of the infrared sulfur analyzer / infrared carbon and hydrogen analyzer test tail gas treatment device provided by this embodiment is arranged on a trolley (not shown in the figure); or

[0087] The bottom of the containing box 500 of the infrared sulfur analyzer / infrared carbon and hydrogen analyzer test tail gas treatment device provided by this embodiment is provided with rollers 510, and a push handle 520 is also provided on one side of the box body of the containing box 500.

[0088] Obviously, through such optimization, it is convenient to use and install the exhaust gas treatment device for the infrared sulfur analyzer / infrared carbon and hydrogen analyzer provided in this embodiment.

[0089] In summary, it can be seen that: through the activated carbon adsorption tank, sodium hydroxide elimination barrel and connecting conduit, the present utility model constructs a new type of exhaust gas treatment device for the infrared sulfur analyzer / infrared carbon and hydrogen analyzer, overcomes the deficiencies of the prior art, can effectively adsorb and eliminate the test exhaust gas of the infrared sulfur analyzer / infrared carbon and hydrogen analyzer, thereby protecting the physical health of the detection personnel and the environment, has substantial progress and positive social significance, and the device has a simple structure, is convenient to manufacture and use, is easy to maintain and repair, has obvious and reliable effects, so it has great promotion and application value.

[0090] During the description process of the above specification, the descriptions of terms such as "this embodiment", "the embodiment of the present utility model", "as shown in...", "further", etc. mean that the specific features, structures, materials or characteristics described in the embodiment are included in at least one embodiment of the present utility model. In this specification, the schematic expressions of the above terms are not necessarily directed to the same embodiment, and moreover, the specific features, structures, materials or characteristics, etc. can be combined or combined in any one or more embodiments in a suitable manner;

[0091] In addition, on the premise of not generating contradictions, those of ordinary skill in the art can combine or combine the different embodiments and the features of different embodiments described in this specification.

[0092] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit it. Although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or equivalently replace some or all of the technical features, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions described in the embodiments of the present utility model. The non-essential improvements, adjustments or replacements made by those skilled in the art according to the content recorded in this specification all fall within the scope of protection required by the present utility model.

Claims

1. An infrared sulfur meter / infrared carbon hydrogen meter test tail gas treatment device, used for purifying the tail gas released when the sulfur / carbon and hydrogen content of coal samples is detected by infrared sulfur meter / infrared carbon hydrogen meter, characterized in that: include: Activated carbon adsorption tank, sodium hydroxide elimination barrel and connecting conduit; The activated carbon adsorption tank has activated carbon placed inside, an air guide pipe is provided at the bottom, and an air outlet pipe is provided at the top, and the air guide pipe is used to connect with the tail gas exhaust pipe of the infrared sulfur meter / the infrared hydrocarbon meter; The sodium hydroxide elimination barrel is filled with a sodium hydroxide solution that does not exceed 2 / 3 of the barrel height, and an air inlet pipe and an exhaust pipe are arranged on the top, and the bottom port of the air inlet pipe is immersed in the sodium hydroxide solution, and the bottom port of the exhaust pipe is above the liquid surface of the sodium hydroxide solution; The connecting conduit connects the air outlet pipe of the activated carbon adsorption tank and the upper port of the air inlet pipe of the sodium hydroxide elimination barrel.

2. The infrared sulfur meter / infrared hydrocarbon meter test tail gas treatment device as claimed in claim 1, characterized in that: The activated carbon adsorption tank comprises a tank body and a tank cover, wherein the bottom of the tank body is communicated with the air duct, the tank cover is covered on the upper part of the tank body, and the air outlet pipe is installed on the tank cover and communicated with the tank body.

3. The infrared sulfur meter / infrared hydrocarbon meter test tail gas treatment device as claimed in claim 2, characterized in that: A charcoal cage is also provided in the tank body, and is used to load the activated carbon. The charcoal cage comprises a cage barrel with a through hole and a flange ring protruding outward from the upper edge of the cage barrel. The charcoal cage is suspended in the tank body by its flange ring.

4. The infrared sulfur meter / infrared hydrocarbon meter test tail gas treatment device as claimed in claim 2, characterized in that: It also includes a support, which is used to support and place the tank body.

5. The infrared sulfur meter / infrared hydrocarbon meter test tail gas treatment device as claimed in claim 1, characterized in that: The sodium hydroxide elimination barrel includes a barrel body and a barrel cover, the barrel body is used to contain the sodium hydroxide solution, the barrel cover is covered on the barrel body, the air inlet pipe and the exhaust pipe are respectively installed on the barrel cover in an interlaced manner, and an exhaust valve is also provided on the exhaust pipe outside the barrel cover.

6. The infrared sulfur meter / infrared hydrocarbon meter test tail gas treatment device as claimed in claim 5, characterized in that: The bottom port of the air inlet pipe is also provided with a sand core funnel, and the bottom port of the exhaust pipe is also provided with an air collecting hood.

7. The infrared sulfur meter / infrared hydrocarbon meter test tail gas treatment device as claimed in claim 5, characterized in that: The bottom of the barrel body of the sodium hydroxide elimination barrel is also provided with a liquid discharge port, and a switch valve is provided on the liquid discharge port.

8. The infrared sulfur meter / infrared hydrocarbon meter test tail gas treatment device as claimed in claim 7, characterized in that: A monitor is also provided, which includes a monitoring bottle, a bottle cap and a pH electrode. The bottom of the monitoring bottle is connected to the discharge port of the sodium hydroxide elimination barrel through the switch valve and can introduce the sodium hydroxide solution. The bottle cap is covered on the monitoring bottle. The pH electrode is inserted on the bottle cap and its electrode is immersed in the sodium hydroxide solution, while its upper end is connected to the external pH tester body through a cable. The bottom of the monitoring bottle is also provided with a drain valve.

9. The infrared sulfur meter / infrared hydrocarbon meter test tail gas treatment device as claimed in claim 8, characterized in that: It also includes a containing box, which is used to contain the activated carbon adsorption tank, the sodium hydroxide elimination barrel and the monitor, and an air valve is also provided on the air duct of the activated carbon adsorption tank. The air valve, the exhaust valve of the sodium hydroxide elimination barrel and the drain valve of the monitor are respectively located outside the box body of the containing box, and the main body of the pH tester is placed on the box panel of the containing box.

10. The infrared sulfur meter / infrared hydrocarbon meter test tail gas treatment device as claimed in claim 9, characterized in that: The containing box is placed on a trolley; or The bottom of the accommodating box is provided with rollers, and one side of the box body of the accommodating box is also provided with a push handle.

Images