A sulfur analyzer exhaust gas filtration device

Abstract

This utility model discloses a sulfur analyzer exhaust gas filtration device, including a first filter device, a second filter device, and a connecting pipe. One end of the first filter device is connected to the exhaust port of the sulfur analyzer via the connecting pipe, and the other end of the first filter device is connected to one end of the second filter device via the connecting pipe. The other end of the second filter device is connected to an exhaust pipe for exhaust. The first filter device includes a shell, a filter element, and a filter cover. The shell has a hollow cavity, and the filter element is installed inside the cavity. One end of the shell has an exhaust nozzle, and the other end of the shell is connected to one end of the filter cover. The other end of the filter cover has an exhaust nozzle, and the exhaust nozzle is connected to one end of the second filter device via the connecting pipe. The exhaust nozzle at the other end of the filter cover is connected to the exhaust port of the sulfur analyzer via the connecting pipe. The exhaust gas enters the first filter device for preliminary filtration, removing larger particulate impurities and some harmful components. Then, it flows into the second filter device through the connecting pipe for further purification, and finally, the gas that meets environmental protection standards is discharged through the exhaust pipe.

Description

Technical Field

[0001] This utility model relates to the field of filtration device technology, and in particular to a sulfur analyzer exhaust gas filtration device. Background Technology

[0002] Because sulfur analyzers produce waste gases such as sulfur dioxide and carbon dioxide when detecting coal char, these gases are generally emitted directly from the exhaust port. Existing filtration devices are mainly designed for indoor air filtration, which is a relatively singular approach to the waste gas emissions from sulfur analyzers. This leads to corrosion of the sulfur analyzer, affecting analytical data, corroding the instrument, and causing long-term health problems for testing personnel. Utility Model Content

[0003] The purpose of this application is to provide a sulfur analyzer exhaust gas filtration device, which has the advantages of deeply purifying the exhaust gas generated by the sulfur analyzer and finally discharging the gas that meets environmental protection standards through the exhaust pipe, thereby achieving effective treatment of sulfur analyzer exhaust gas and reducing pollutant emissions.

[0004] This application provides a sulfur analyzer exhaust gas filtration device, the technical solution of which is as follows: A sulfur analyzer exhaust gas filtration device includes a first filter device, a second filter device and a connecting pipe. One end of the first filter device is connected to the exhaust port of the sulfur analyzer through the connecting pipe. The other end of the first filter device is connected to one end of the second filter device through the connecting pipe. The other end of the second filter device is connected to the exhaust pipe for exhaust.

[0005] The first filtration device includes a housing, a filter element, and a filter cover. The housing has a hollowed-out cavity, and the filter element is installed inside the cavity. One end of the housing is provided with an air outlet, and the other end of the housing is connected to one end of the filter cover. The other end of the filter cover is provided with an air inlet. The air outlet is connected to one end of the second filtration device through the connecting pipe, and the air outlet at the other end of the filter cover is connected to the exhaust port of the sulfur analyzer through the connecting pipe.

[0006] Furthermore, the other end of the housing is provided with an external thread, and one end of the filter cover is provided with an internal thread. The other end of the housing is threadedly connected to one end of the filter cover.

[0007] Furthermore, the filter element is a ceramic filter element, and one end of the ceramic filter element protrudes outward along the periphery to form a "T" shape.

[0008] Furthermore, one end of the ceramic filter element is connected to the inner end of the filter cover, and the other end of the ceramic filter element is connected to the inner end of the cavity of the housing.

[0009] Furthermore, the filtration device also includes a filter cap, which is a regular hexagon with internal threads, one end of which is open, and the other end of which protrudes inward along the periphery.

[0010] Furthermore, the air outlet and the air inlet extend outward from one end to the other end to form a cap shape, and the air outlet and the air inlet are provided with external threads near the cap shape.

[0011] Furthermore, one end of the housing has a hexagonal outer surface with straight sides of equal length forming a regular hexagonal outline, and the other end of the filter cover has right angles on both sides of its outer surface.

[0012] Furthermore, the second filtration device includes a filter cylinder, alkali asbestos, color-changing silica gel, quartz wool, a cylinder cover, and a cylinder cap. The filter cylinder has openings at both ends, and the openings are provided with external threads. The two ends of the filter cylinder are respectively connected to the cylinder cover. The cylinder cover is provided with an air nozzle, and the air nozzle is provided with a cylinder cap. The alkali asbestos, color-changing silica gel, and quartz wool are arranged sequentially inside the filter cylinder.

[0013] Furthermore, the second filtration device also includes an activated carbon filter screen, which has honeycomb straight holes. The size of the outer wall of the activated carbon filter screen opening at one end is the same as that of the activated carbon filter screen opening at one end. The activated carbon filter screen is disposed between one end of the activated carbon filter screen and the inside of the cylinder cover.

[0014] Furthermore, the filtering device also includes a filter clip, one end of which is located on the back of the sulfur analyzer, and the other end of which is U-shaped. The first filtering device and the second filtering device are located on the back of the sulfur analyzer via the U-shaped filter clip.

[0015] The beneficial effects of this invention are as follows: The sulfur analyzer exhaust gas filtration device consists of a first filter device, a second filter device, and a connecting pipe, forming a multi-stage filtration system. The exhaust gas generated by the sulfur analyzer first enters the first filter device through the connecting pipe for preliminary filtration, removing larger particulate impurities and some harmful components. Then, it flows through the connecting pipe into the second filter device for further purification. Finally, it is discharged through the exhaust pipe, producing gas that meets environmental standards, thus achieving effective treatment of the sulfur analyzer exhaust gas and reducing pollutant emissions. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the exhaust gas filtration device.

[0017] Figure 2 This is a schematic diagram of the air outlet, air inlet, and air nozzle.

[0018] Figure 3 This is a schematic diagram of the filter clip structure.

[0019] Figure Descriptions: 1. First filtration device; 101. Housing; 102. Ceramic filter element; 103. Filter cover; 104. Filter cap; 105. Air outlet; 106. Air inlet; 2. Second filtration device; 201. Filter cylinder; 202. Color-changing silica gel; 203. Alkali asbestos; 204. Quartz wool; 205. Air nozzle; 206. Cylinder cover; 207. Cylinder cap; 3. Connecting pipe; 4. Filter clamp; 5. Activated carbon filter screen. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] The terms "first" or "second," etc., used in this utility model to refer to numbers or ordinal numbers are for descriptive purposes only and should not be construed as indicating relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features.

[0022] In order to solve the technical problems in the prior art, the present invention will be further described in conjunction with the accompanying drawings and embodiments:

[0023] like Figure 1-3 As shown, this utility model embodiment discloses a sulfur analyzer exhaust gas filtration device, including a first filter device 1, a second filter device 2 and a connecting pipe 3, forming a multi-stage filtration system. One end of the first filter device 1 is connected to the exhaust port of the sulfur analyzer through the connecting pipe 3, and the other end of the first filter device 1 is connected to one end of the second filter device 2 through the connecting pipe 3. The other end of the second filter device 2 is connected to the exhaust pipe for exhaust.

[0024] In terms of specific working principle, the exhaust gas generated by the sulfur analyzer first enters the first filter device 1 through the connecting pipe 3 for preliminary filtration to remove larger particulate impurities and some harmful components. Then, it flows into the second filter device 2 through the connecting pipe 3 for deep purification. Finally, it is discharged through the exhaust pipe in accordance with environmental protection standards, thus achieving effective treatment of the exhaust gas from the sulfur analyzer and reducing pollutant emissions.

[0025] To further explain, the first filter device 1 includes a housing 101, a filter element, and a filter cover 103. The housing 101 has a hollowed-out cavity to provide installation space for the filter element. The filter element is installed in the cavity of the housing 101. One end of the housing 101 is provided with an air outlet 105. The other end of the housing 101 is connected to one end of the filter cover 103. The other end of the filter cover 103 is provided with an air inlet 106. The air outlet 105 is connected to one end of the second filter device 2 through a connecting pipe 3. The air outlet 105 at the other end of the filter cover 103 is connected to the exhaust port of the sulfur analyzer through a connecting pipe 3.

[0026] Furthermore, the housing 101 is cylindrical, with a through hole of the same size as the opening of the air outlet 105 at one end and an open end at the other. The housing 101 and the air outlet 105 can be integrally cast or seamlessly welded together. These two methods provide better sealing performance. Alternatively, an internal thread can be provided at one end of the housing 101 and an external thread at one end of the air outlet 105, and the two can be connected by threads. If either component is damaged, it can be disassembled and replaced.

[0027] Furthermore, the other end of the housing 101 is provided with an external thread, and one end of the filter cover 103 is provided with an internal thread. The other end of the housing 101 is threadedly connected to one end of the filter cover 103. The other end of the filter cover 103 is provided with a hole that is the same as the through hole of the air inlet 106, which makes it easy to place the filter element into the cavity and seal it. When the filter element needs to be replaced, the filter cover 103 can be removed to complete the replacement, which is convenient for maintenance.

[0028] Furthermore, the filter element can be any one of ceramic filter element 102, resin filter element or activated carbon filter element, etc. It is best to use 20~30um ceramic filter element 102, which can filter some sulfides, particulate matter or dust in the exhaust gas, has a long service life and good filtration effect. One end of the ceramic filter element 102 protrudes outward from the periphery to form a "T" shape, which can stably place the ceramic filter element 102 in the cavity without moving.

[0029] Furthermore, one end of the ceramic filter element 102 protrudes outward and is connected to the inner end of the filter cover 103, while the other end of the ceramic filter element 102 is connected to the inner end of the cavity of the housing 101, forming a preliminary filtration system that can initially filter some sulfides, particulate matter, or dust.

[0030] Furthermore, the ceramic filter element 102 can adopt a gradient pore structure or a dual-control membrane structure. The gradient pore structure is set in three layers: the windward side has a larger pore size of 20~30um to intercept large dust particles; the middle layer is a gradient-distributed mullite fiber to form tortuous channels and extend the heat exchange time; and the leeward side is a dense layer with a pore size of 2μm. Combined with a silicon nitride coating, it can achieve ultra-low emissions with a dust concentration of <5mg / m³.

[0031] Furthermore, the first filter device 1 is also provided with a filter cap 104. The filter cap 104 is a regular hexagon, which makes it easy to tighten or loosen the glove outside the filter cap 104. The filter cap 104 has an internal thread and one end is open, which can be threaded to the air outlet 105 or the air inlet 106. The other end of the filter cap 104 protrudes inward along the periphery. The filter cap 104 is used to lock the connection between the connecting pipe 3 and the air outlet 105 or the air inlet 106. Since the opening at the other end of the filter cap 104 is smaller than the end of the air outlet 105 or the air inlet 106, the filter cap 104 clamps the connecting pipe 3 so that it cannot be detached.

[0032] Furthermore, the air outlet 105 and the air inlet 106 extend outward from the smaller end to the larger end to form a cap shape. Since the smaller end makes it easy to put the connecting tube 3 into the air outlet 105 or the air inlet 106, the air outlet 105 and the air inlet 106 are provided with external threads near the cap shape. The connecting tube 3 first passes through the filter cap 104 and then is put into the air outlet 105 or the air inlet 106. The filter cap 104 is threadedly connected to the air outlet 105 or the air inlet 106 to lock the connecting tube 3, so that the connecting tube 3 will not fall off.

[0033] Furthermore, one end of the housing 101 has a hexagonal outer surface with straight sides of equal length forming a regular hexagonal outline, and the other end of the filter cover 103 has right angles on both sides of its outer surface, making it easy to tighten or loosen the gloves on the outer surface for disassembly.

[0034] Furthermore, the second filtration device 2 includes a filter cylinder 201, alkali asbestos 203, color-changing silica gel 202, quartz wool 204, a cover 206, and a cap 207. The filter cylinder 201 has openings at both ends, and the openings are provided with external threads. The two ends of the filter cylinder 201 are respectively threaded to the cover 206. The cover 206 is provided with an air nozzle 205, and the air nozzle 205 is provided with a cap 207. The alkali asbestos 203, color-changing silica gel 202, and quartz wool 204 are arranged sequentially inside the filter cylinder 201.

[0035] To further explain, alkali asbestos 203 can neutralize the acidity in exhaust gas, achieving better filtration results. Color-changing silica gel 202 is granular and adsorbs moisture in the exhaust gas, achieving a dry effect inside the filter cartridge 201. Exhaust gas can pass through the gaps between the particles and flow to the next layer of filtration. At the same time, the color-changing silica gel 202 changes color when absorbing moisture from the exhaust gas, and the humidity inside the filter cartridge 201 can be judged by the color of the silica gel 202. Quartz wool 204 can effectively filter particulate matter or dust larger than or equal to 0.3μm in exhaust gas, with a filtration efficiency of over 99%.

[0036] To further explain, the filter cartridge 201 can be made of metal, glass or ceramic in one piece, preferably of glass, specifically borosilicate glass or quartz glass. The filter cartridge 201 made of borosilicate glass has an anti-corrosion effect on alkaline and acidic gases in the exhaust gas. Since glass can be made transparent, the internal condition of the filter cartridge 201 can be observed at the same time.

[0037] Furthermore, the second filtration device 2 also includes an activated carbon filter 5, which can be honeycomb or granular, preferably honeycomb activated carbon filter 5, which can adsorb some harmful gases such as sulfides. Its shape is a circular plate filter. The activated carbon filter 5 is the same size as the inner wall of the opening at one end of the filter cylinder 201, which makes it easy for the activated carbon filter 5 to be assembled in one end of the filter cylinder 201.

[0038] Furthermore, the filtering device also includes a filter clip 4, one end of which is located on the back of the sulfur analyzer, and the other end of which is U-shaped. The first filtering device 1 and the second filtering device 2 are located on the back of the sulfur analyzer through the U-shaped filter clip 4.

[0039] To further explain, one end of the filter clip 4 is flat with a through hole in the middle, which can be fixed to the back of the sulfur analyzer by screws. The other end of the filter clip 4 can be U-shaped or semi-circular. The filter clip 4 can be integrally cast from plastic or metal. The first filter device 1 and the second filter device 2 are fitted into the filter clip 4 and fixed to the back of the sulfur analyzer.

[0040] The working principle of this utility model is as follows: one end of the connecting pipe 3 is connected to the exhaust port of the sulfur analyzer; the other end of the connecting pipe 3 passes through the filter cap 104 and is inserted into the other end of the air inlet 106; the filter cap 104 is screwed into the other end of the air inlet 106 and clamps the connecting pipe 3; one end of the air inlet 106 is welded to a hole on the other end of the filter cover 103; one end of the filter cover 103 has an opening with an internal thread; one end of the ceramic filter element 102 is connected to the inner end of one end of the filter cover 103; the other end of the ceramic filter element 102 is connected to the shell. The other end of the body 101 is internally connected, and one end of the filter cover 103 is threadedly connected to the other end of the body 101. The through hole at one end of the body 101 is welded with an air outlet 105. One end of the connecting pipe 3 is threaded through the filter cap 104 and inserted into the air outlet 105. Then the filter cap 104 is screwed into the outside of the air outlet 105 and the connecting pipe 3 is tightened. At this time, the first filter device 1 is formed. The exhaust gas discharged from the sulfur analyzer enters the first filter device 1 for preliminary filtration, which can filter out some of the sulfides, particulate matter and dust in the exhaust gas. The other end of the connecting pipe 3, which connects to the outlet nozzle 105, passes through the cap 207 and is inserted into the nozzle 205 on the cover 206. The cap 207 is tightened onto the nozzle 205 on the cover 206. After placing the activated carbon filter 5 inside the cover 206, the cover 206 is threaded to one end of the filter cylinder 201. Then, the alkali asbestos 203, color-changing silica gel 202, and quartz wool 204 are placed sequentially inside the filter cylinder 201. The other end of the filter cylinder 201 is then tightened and sealed with the cover 206. The nozzle 205 on the cover 206 is again connected to the cover 206 using one end of the connecting pipe 3. At this point, the second filtration device 2 is formed. The exhaust gas enters the second filtration device 2 from the first filtration device 1 for deep purification. The activated carbon filter 5 adsorbs some of the sulfides and moisture in the waste gas. The waste gas then passes through alkali asbestos 203, which neutralizes the acidity in the waste gas. The waste gas then passes through color-changing silica gel 202, which adsorbs the moisture in the waste gas. At the same time, the humidity inside the filter cartridge 201 can be judged by observing the color of the color-changing silica gel 202 through the transparent filter cartridge 201. Quartz wool 204 filters the dust or particles in the waste gas again. At this point, the harmful substances in the waste gas have been filtered out. Finally, the gas that meets environmental protection standards is discharged through the exhaust pipe. It can be directly discharged indoors or outdoors. It is best to connect the other end of the connecting pipe 3 to the outdoor exhaust pipe for exhaust.

[0041] In summary, any other corresponding modifications made by those skilled in the art after reading this utility model document, based on the technical solution and concept of this utility model without creative mental effort, shall all fall within the scope of protection of this utility model.

Claims

1. A sulfur determination apparatus exhaust gas filtering device characterized by comprising: It includes a first filter device, a second filter device, and a connecting pipe. One end of the first filter device is connected to the exhaust port of the sulfur analyzer through the connecting pipe. The other end of the first filter device is connected to one end of the second filter device through the connecting pipe. The other end of the second filter device is connected to the exhaust pipe for exhaust. The first filtration device includes a housing, a filter element, and a filter cover. The housing has a hollowed-out cavity, and the filter element is installed inside the cavity. One end of the housing is provided with an air outlet, and the other end of the housing is connected to one end of the filter cover. The other end of the filter cover is provided with an air inlet. The air outlet is connected to one end of the second filtration device through the connecting pipe, and the air outlet at the other end of the filter cover is connected to the exhaust port of the sulfur analyzer through the connecting pipe.

2. The sulfur analyzer exhaust filter of claim 1, wherein, The other end of the housing is provided with an external thread, and one end of the filter cover is provided with an internal thread. The other end of the housing is threadedly connected to one end of the filter cover.

3. The sulfur analyzer exhaust filter of claim 1, wherein, The filter element is a ceramic filter element, and one end of the ceramic filter element protrudes outward along the periphery to form a "T" shape.

4. The sulfur analyzer exhaust filter of claim 3, wherein, One end of the ceramic filter element is connected to the inner end of the filter cover, and the other end of the ceramic filter element is connected to the inner end of the cavity of the housing.

5. The sulfur analyzer exhaust filter of claim 1, wherein, The air outlet and the air inlet extend outward from one end to the other end, forming a cap shape. The air outlet and the air inlet are provided with external threads near the cap shape.

6. The sulfur analyzer exhaust filter of claim 1, wherein, The first filtration device also includes a filter cap, which is a regular hexagon with internal threads. One end of the filter cap is open, and the other end of the filter cap protrudes inward along the periphery. One end of the filter cap is threadedly connected to the air outlet or the air inlet.

7. The sulfur analyzer exhaust filter of claim 1, wherein, One end of the housing has a hexagonal outer surface with straight sides of equal length forming a regular hexagonal outline, and the other end of the filter cover has right angles on both sides of its outer surface.

8. The sulfur analyzer exhaust filter of claim 1, wherein, The second filtration device includes a filter cylinder, alkali asbestos, color-changing silica gel, quartz wool, a cylinder cover, and a cylinder cap. The filter cylinder has openings at both ends, and the openings are provided with external threads. The two ends of the filter cylinder are respectively connected to the cylinder cover. The cylinder cover is provided with an air nozzle, and the air nozzle is provided with a cylinder cap. The alkali asbestos, color-changing silica gel, and quartz wool are arranged sequentially inside the filter cylinder.

9. The sulfur analyzer exhaust filter of claim 8, wherein, The second filtration device also includes an activated carbon filter screen, which has honeycomb straight holes. The size of the outer wall of the activated carbon filter screen is the same as the size of the opening at one end. The activated carbon filter screen is disposed between one end of the activated carbon filter screen and the inside of the cylinder cover.

10. The sulfur analyzer exhaust filter of claim 1, wherein, The filtering device also includes a filter clip, one end of which is located on the back of the sulfur analyzer, and the other end of which is U-shaped. The first filtering device and the second filtering device are located on the back of the sulfur analyzer via the U-shaped filter clip.

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