Expandable graphite desulfurization device

Abstract

The utility model discloses an expandable graphite desulfurization device, including a desulfurization pipe, characterized in that: the desulfurization pipe is L-shaped, the bottom of the corner of the desulfurization pipe is provided with a sulfur discharge port connected to the inside thereof, an isolation metal mesh is fixedly installed at the top of the sulfur discharge port, a first motor is fixedly installed on one side of the sulfur discharge port, the output end of the first motor is driven to connect to the exhaust fan located inside the sulfur discharge port, a second motor is fixedly installed on the outer wall of the desulfurization pipe, the output end of the second motor is driven to connect to the turntable located inside the desulfurization pipe, a plurality of evenly distributed stirring rods are fixedly installed on the outer wall of the turntable, the turntable is arranged above and close to the isolation metal mesh, a feeding device is also installed inside the desulfurization pipe, and a discharge port connected to the inside thereof is provided at the bottom of the end of the desulfurization pipe. In the utility model, the sulfur-containing gas is efficiently discharged through the cooperation of the fan, the feeding device and the turntable.

Description

Technical Field

[0001] The utility model relates to the technical field of desulfurization devices, in particular to an expandable graphite desulfurization device. Background Art

[0002] As a non-metallic material, graphite is widely used in many fields. In particular, its unique characteristics play an irreplaceable role in the fields of sealing and heat conduction and heat dissipation. In order to expand natural graphite at high temperature, it is necessary to perform material intercalation treatment between its flakes to obtain expandable graphite. The current common practice is to perform acid ion intercalation treatment between natural graphite flakes in a strongly oxidizing environment so that the acid ions are fully inserted between the graphite flakes. Natural graphite after acid ion intercalation is often called acidified graphite, that is, expandable graphite. When expandable graphite is exposed to high temperatures (700-1200°C), the acid ions between the flakes will violently vaporize, and the resulting expansion force can pull the interlayer spacing of natural graphite apart, causing the volume of expandable graphite to expand violently. The total volume after expansion can reach 100-350 times the volume of acidified graphite before expansion, and some can even reach more than 500 times. The expanded graphite has a fluffy texture, and the natural graphite is elongated into strips. Because of its worm-like shape, expanded graphite is often called graphite worms. Expanded graphite can be processed later, such as rolling or molding into a variety of products, which are widely used in the fields of sealing and heat conduction and heat dissipation. Among the various methods of preparing expandable graphite by acidification of natural stone, the method of inserting sulfate ions into the natural graphite sheet in a strong oxidizing environment with concentrated sulfuric acid is the most widely used method. This method is the most economical, causes the least pollution to the environment, and has the most mature process conditions.

[0003] However, the graphite prepared by this method contains a large amount of sulfur, which affects the use effect of graphite products. There is currently no reliable technical solution. Utility Model Content

[0004] The purpose of the present application is to provide an expandable graphite desulfurization device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions: an expandable graphite desulfurization device, comprising a desulfurization pipe, wherein the desulfurization pipe is L-shaped, and a sulfur discharge port connected to the interior is provided at the bottom of the corner of the desulfurization pipe, and an isolation metal mesh is fixedly installed at the top of the sulfur discharge port. A first motor is fixedly installed on one side of the sulfur discharge port, and the output end of the first motor is driven to connect to the exhaust fan located inside the sulfur discharge port. A second motor is fixedly installed on the outer wall of the desulfurization pipe, and the output end of the second motor is driven to connect to a turntable located inside the desulfurization pipe, and a plurality of evenly distributed stirring rods are fixedly installed on the outer wall of the turntable, and the turntable is arranged above and close to the isolation metal mesh. A feeding device is also installed inside the desulfurization pipe, and a discharge port connected to the interior is provided at the bottom of the end of the desulfurization pipe.

[0006] Preferably, the feeding device includes a third motor and a spiral feeding dragon shaft. The third motor is fixedly mounted on one end of the desulfurization pipe where a discharge port is provided. The output end of the third motor is driven and connected to the spiral feeding dragon shaft. The spiral feeding dragon shaft is rotatably connected to the desulfurization pipe and one end of the spiral feeding dragon shaft extends to near the isolation metal mesh.

[0007] Preferably, a hydraulic rod is fixedly installed on one side of the corner of the desulfurization pipe, and the output end of the hydraulic rod drives and connects to a scraper located inside the desulfurization pipe, and the bottom end of the scraper contacts the top end of the isolation metal mesh.

[0008] Preferably, one side of the top end of the desulfurization pipe is provided with an auxiliary air inlet connected to the interior thereof, and an electric control valve is fixedly installed at the auxiliary air inlet.

[0009] Preferably, the inner wall of the desulfurization pipe is coated with a high temperature resistant thermal insulation coating.

[0010] In summary, the technical effects and advantages of the utility model are:

[0011] In the utility model, the blower, the feeding device and the turntable cooperate to discharge the sulfur-containing gas efficiently, thereby reducing the pollution to the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0013] Figure 1 This is a schematic structural diagram of an expandable graphite desulfurization device in an embodiment of the present application;

[0014] Figure 2This is a schematic diagram of the cross-sectional structure of an expandable graphite desulfurization device in an embodiment of the present application.

[0015] In the figure: 1. desulfurization pipe; 2. sulfur discharge port; 3. first motor; 4. exhaust fan; 5. isolation metal mesh; 6. second motor; 7. turntable; 8. stirring rod; 9. third motor; 10. spiral feed dragon shaft; 11. discharge port; 12. auxiliary air inlet; 13. electric control valve; 14. hydraulic rod; 15. scraper. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] In the description of the present disclosure, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "top", "bottom", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present disclosure 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, and therefore cannot be understood as a limitation of the present disclosure. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0018] It should also be noted that the standard parts used in this application document can be purchased from the market, and can be customized according to the description in the specification and drawings. Unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, and it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this disclosure can be understood according to the specific circumstances, and in the absence of clear limitations, machines, parts and equipment can all adopt conventional models in the prior art.

[0019] In this article, the term "comprising" is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, the elements defined by the sentence "comprising..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0020] Example: Reference Figure 1-2 An expandable graphite desulfurization device shown includes a desulfurization pipe 1, which is L-shaped. A sulfur discharge port 2 connected to the interior of the desulfurization pipe 1 is provided at the bottom of the corner of the desulfurization pipe 1, and an isolation metal mesh 5 is fixedly installed at the top of the sulfur discharge port 2. A first motor 3 is fixedly installed on one side of the sulfur discharge port 2, and the output end of the first motor 3 is driven to connect to an exhaust fan 4 located inside the sulfur discharge port 2. A second motor 6 is fixedly installed on the outer wall of the desulfurization pipe 1, and the output end of the second motor 6 is driven to connect to a turntable 7 located inside the desulfurization pipe 1. A plurality of evenly distributed stirring rods 8 are fixedly installed on the outer wall of the turntable 7, and the turntable 7 is arranged above the isolation metal mesh 5 and close to the isolation metal mesh 5. A feeding device is also installed inside the desulfurization pipe 1, and a discharge port 11 connected to the interior of the desulfurization pipe 1 is provided at the bottom of the end of the desulfurization pipe 1. When the expanded graphite is separated in the gas separation device, it must be carried out at a higher temperature (200-600°C). Experiments show that the higher the temperature within a certain temperature period, the better the sulfur reduction effect. The reason is that there are a large number of tiny pores inside the expanded graphite, which have a strong adsorption effect on polar molecules. When the temperature is high, the activity of the molecules is enhanced, and it is easier to separate and escape polar molecules from the internal pores of the expanded graphite, especially polar molecules containing sulfur elements. Therefore, the desulfurization device can be arranged at the outlet of the heating and expansion equipment, such as the muffle furnace, to maintain the temperature of the material. The graphite enters the desulfurization pipe, and the first motor drives the exhaust fan to rotate at the sulfur outlet for exhaust. The isolation metal mesh intercepts the graphite, and the discharge speed of the discharge port is controlled by the feeding device. In this way, the flow speed of the graphite at the sulfur outlet can be controlled to facilitate sulfur discharge. The second motor drives the turntable to rotate and stir the graphite of the isolation metal mesh to ensure that the graphite can discharge sulfur efficiently.

[0021] By means of the above structure: the feeding device includes a third motor 9 and a spiral feeding dragon shaft 10, the third motor 9 is fixedly mounted on one end of the desulfurization pipe 1 provided with a discharge port 11, the output end of the third motor 9 is driven to connect to the spiral feeding dragon shaft 10, the spiral feeding dragon shaft 10 is rotatably connected to the desulfurization pipe 1 and one end thereof extends to near the isolation metal mesh 5, the third motor 9 drives the spiral feeding dragon shaft 10 to rotate, thereby driving the graphite to move.

[0022] By means of the above structure: a hydraulic rod 14 is fixedly installed on one side of the corner of the desulfurization pipe 1, and the output end of the hydraulic rod 14 drives a scraper 15 located inside the desulfurization pipe 1. The bottom end of the scraper 15 contacts the top of the isolation metal mesh 5, and the scraper is driven by the hydraulic rod to reciprocate on the isolation metal mesh to avoid clogging of the isolation metal mesh.

[0023] By means of the above structure: an auxiliary air inlet 12 communicating with the interior of the desulfurization pipe 1 is provided on one side of the top end thereof, an electric control valve 13 is fixedly installed at the auxiliary air inlet 12, and the auxiliary air inlet ensures reliable exhaust of the desulfurization outlet.

[0024] By means of the above structure: the inner wall of the desulfurization pipe 1 is coated with a high temperature resistant heat-insulating coating.

[0025] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An expandable graphite desulfurization device, comprising a desulfurization tube (1), characterized in that: The desulfurization pipe (1) is L-shaped, and a sulfur discharge port (2) connected to the interior is provided at the bottom of the corner of the desulfurization pipe (1). An isolation metal mesh (5) is fixedly installed at the top of the sulfur discharge port (2). A first motor (3) is fixedly installed on one side of the sulfur discharge port (2). The output end of the first motor (3) is driven to connect to an exhaust fan (4) located inside the sulfur discharge port (2). A second motor (6) is fixedly installed on the outer wall of the desulfurization pipe (1). The output end of the second motor (6) is driven to connect to a turntable (7) located inside the desulfurization pipe (1). A plurality of evenly distributed stirring rods (8) are fixedly installed on the outer wall of the turntable (7). The turntable (7) is arranged above the isolation metal mesh (5) and close to the isolation metal mesh (5). A feeding device is also installed inside the desulfurization pipe (1). A discharge port (11) connected to the interior is provided at the bottom of the end of the desulfurization pipe (1).

2. An expandable graphite desulfurization device according to claim 1, characterized in that: The feeding device comprises a third motor (9) and a spiral feeding dragon shaft (10); the third motor (9) is fixedly mounted on one end of the desulfurization pipe (1) provided with a discharge port (11); the output end of the third motor (9) is drivingly connected to the spiral feeding dragon shaft (10); the spiral feeding dragon shaft (10) is rotatably connected to the desulfurization pipe (1) and one end of the spiral feeding dragon shaft extends to a position close to the isolation metal mesh (5).

3. The expandable graphite desulfurization device according to claim 1, characterized in that: A hydraulic rod (14) is fixedly installed on one side of the corner of the desulfurization pipe (1), and the output end of the hydraulic rod (14) is driven to connect to a scraper (15) located inside the desulfurization pipe (1), and the bottom end of the scraper (15) is in contact with the top end of the isolation metal mesh (5).

4. The expandable graphite desulfurization device according to claim 1, characterized in that: An auxiliary air inlet (12) communicating with the interior of the desulfurization pipe (1) is provided on one side of the top end thereof, and an electric control valve (13) is fixedly installed at the auxiliary air inlet (12).

5. The expandable graphite desulfurization device according to claim 1, characterized in that: The inner wall of the desulfurization pipe (1) is coated with a high temperature resistant heat-insulating coating.

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