Device for removing hydrogen sulfide from tail gas of graphitization furnace of turbocharging turbulator

Abstract

The utility model belongs to the technical field of tail gas removal treatment, and particularly relates to a device for removing hydrogen sulfide from tail gas of a graphitization furnace of a turbocharged turbulator, which comprises the graphitization furnace and the turbocharged turbulator, a gas outlet valve and a pressure gauge are fixedly mounted at the top of the graphitization furnace, and a communicating pipe is fixedly connected to the side surface of the gas outlet valve; the end, away from the air outlet valve, of the communicating pipe is fixedly connected with a treatment box, a removal device is arranged in the treatment box and comprises a heating mechanism and an adsorption mechanism, and the adsorption mechanism comprises a motor, a rotating plate, a movable groove, a telescopic spring, a sliding block and an adsorption plate. According to the graphitization furnace tail gas hydrogen sulfide removing device of the turbocharging turbulator, high-temperature heating is conducted in the heating box, hydrogen sulfide in waste gas is oxidized into harmless products through high-temperature combustion, and when gas adsorbed by the molecular sieve is exhausted from the exhaust pipe, the gas is discharged into the heating box; and water vapor and residual hydrogen sulfide gas can be adsorbed by the activated carbon tube in the device, so that the treatment effect on the hydrogen sulfide gas is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tail gas removal treatment, in particular to a device for removing hydrogen sulfide from the tail gas of a graphitization furnace of a turbocharged turbulator. Background Technique

[0002] The graphitization furnace is mainly used for high-temperature treatment such as purification of graphite powder materials. Its operating temperature is as high as 2800 °C. It has high production efficiency, energy-saving and power-saving. It is equipped with an on-line temperature measurement and control system, which can monitor the temperature inside the furnace in real time and perform automatic adjustment.

[0003] The existing graphitization furnace is in a sealed processing environment. During the working process, a large amount of waste gas will be generated inside, and it is necessary to carry out ventilation treatment in time to avoid excessive pressure inside the furnace. The traditional filtration method is to directly treat the waste gas. At this time, the dust mixed in the waste gas will cause the filter element to be blocked.

[0004] In the patent document with the publication number of CN214513292U, a tail gas treatment device for a graphitization furnace is disclosed. The dust is filtered out by the grid filter screen inside the mixing chamber. The waste gas after filtration enters the waste gas chamber, and then is transported to the waste gas filter tank on the other side through the transfer pipeline and the shunt pipeline. The waste gas is filtered by the filter element inside the tank until the waste gas reaches the emission standard.

[0005] However, the tail gas treatment device of this graphitization furnace has poor treatment effect on hydrogen sulfide, and the content of hydrogen sulfide in the discharged waste gas fails to reach the emission standard. Content of the Utility Model

[0006] The purpose of the utility model is to provide a device for removing hydrogen sulfide from the tail gas of a graphitization furnace of a turbocharged turbulator, so as to solve the problems put forward in the above background technique.

[0007] To achieve the above purpose, the utility model provides the following technical solution: A device for removing hydrogen sulfide from the tail gas of a graphitization furnace of a turbocharged turbulator, including a graphitization furnace and a turbocharged turbulator fixedly installed at the feed inlet of the graphitization furnace. An air outlet valve and a pressure gauge are fixedly installed at the top of the graphitization furnace. A connecting pipe is fixedly connected to the side of the air outlet valve, and the end of the connecting pipe far away from the air outlet valve is fixedly connected to a treatment box.

[0008] A removal device is arranged inside the treatment box, and the removal device includes a heating mechanism and an adsorption mechanism.

[0009] The adsorption mechanism includes a motor, a rotating plate, an activity groove, a telescopic spring, a slider and an adsorption plate. The motor is fixedly installed at the inner bottom of the processing box. The center of the bottom of the rotating plate is connected to the output end of the motor. The activity groove is opened on the outer surface of the rotating plate. The telescopic spring is fixedly connected to one side of the inner wall of the activity groove. The slider is fixedly connected to one end of the telescopic spring. The adsorption plate is fixedly connected to the side of the slider.

[0010] Preferably, small holes are opened on the surface of the adsorption plate, a molecular sieve is arranged inside the adsorption plate, and the activity grooves are equally spaced on the surface of the rotating plate.

[0011] Preferably, the heating mechanism includes a shunt pipe, a connecting pipe and a heating box. The shunt pipe is fixedly connected to the bottom end of the communicating pipe. The connecting pipe is fixedly connected to the side of the shunt pipe. The heating box is fixedly installed on the inner top wall of the processing box.

[0012] Preferably, multiple shunt pipes are communicated through the connecting pipe. An electric heating pipe is installed inside the heating box, and the heating temperature of the electric heating pipe can reach 800 degrees Celsius.

[0013] Preferably, an adsorption pipe is fixedly connected to the inner top wall of the heating box. The inner wall of the adsorption pipe is filled with activated carbon. The gas entering the inside of the adsorption pipe from multiple shunt pipes adsorbs water vapor and part of hydrogen sulfide gas through the internal activated carbon.

[0014] Preferably, an air vent valve is fixedly installed at the bottom of the heating box. The air vent valve is a one-way valve and only allows gas to flow from the inside of the heating box to the inside of the processing box.

[0015] Preferably, an exhaust pipe is fixedly connected to the outer bottom surface of the processing box. The inside of the exhaust pipe is filled with an activated carbon pipe, and the activated carbon pipe can adsorb water vapor and residual hydrogen sulfide gas.

[0016] Compared with the prior art, the beneficial effects of the present utility model are:

[0017] 1. For the device for removing hydrogen sulfide from the tail gas of the graphitization furnace of the turbocharged turbulator, after the rotation speed of the motor changes, the slider will make a small-range reciprocating movement inside the activity groove, thereby driving the adsorption plate to make a small-range reciprocating movement, enhancing the direct adsorption effect of the molecular sieve inside the adsorption plate on hydrogen sulfide.

[0018] 2. For the device for removing hydrogen sulfide from the tail gas of the graphitization furnace of the turbocharged turbulator, after high-temperature heating inside the heating box, hydrogen sulfide in the waste gas is oxidized into harmless products through high-temperature combustion. When the gas adsorbed by the molecular sieve is discharged from the exhaust pipe, water vapor and residual hydrogen sulfide gas will also be adsorbed by the activated carbon pipe inside it, further improving the treatment effect on hydrogen sulfide gas. Description of the Drawings

[0019] Figure 1 is the overall structural schematic diagram of the present utility model;

[0020] Figure 2 is the structural schematic diagram of the treatment box of the present utility model;

[0021] Figure 3 is the structural schematic diagram of the rotating plate of the present utility model;

[0022] Figure 4 is Figure 3 the enlarged schematic diagram of the structure at position A in

[0023] Figure 5 is the internal structural schematic diagram of the heating box of the present utility model;

[0024] Figure 6 is the cross-sectional view of the treatment box of the present utility model.

[0025] In the figure: 1, graphitization furnace; 2, pressure gauge; 3, gas outlet valve; 4, connecting pipe; 401, shunt pipe; 402, connecting pipeline; 403, heating box; 404, adsorption pipe; 405, through groove; 5, turbocharged turbulator; 6, treatment box; 601, motor; 602, rotating plate; 603, movable groove; 604, telescopic spring; 605, slider; 606, adsorption plate; 7, exhaust pipe; 8, activated carbon pipe. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] Please refer to Figures 1 - 6 , the present utility model provides a technical solution:

[0028] Embodiment 1: A device for removing hydrogen sulfide from the tail gas of a graphitization furnace with a turbocharged turbulator, comprising a graphitization furnace 1 and a turbocharged turbulator 5 fixedly installed at the feed inlet of the graphitization furnace 1. A gas outlet valve 3 and a pressure gauge 2 are fixedly installed at the top of the graphitization furnace 1. A connecting pipe 4 is fixedly connected to the side of the gas outlet valve 3, and one end of the connecting pipe 4 away from the gas outlet valve 3 is fixedly connected to a treatment box 6.

[0029] A removal device is arranged inside the treatment box 6, and the removal device includes a heating mechanism and an adsorption mechanism.

[0030] The adsorption mechanism includes a motor 601, a rotating plate 602, an activity groove 603, a telescopic spring 604, a slider 605, and an adsorption plate 606. The motor 601 is fixedly installed at the inner bottom of the processing box 6. The center of the bottom of the rotating plate 602 is connected to the output end of the motor 601. The activity groove 603 is opened on the outer surface of the rotating plate 602. The telescopic spring 604 is fixedly connected to one side of the inner wall of the activity groove 603. The slider 605 is fixedly connected to one end of the telescopic spring 604. The adsorption plate 606 is fixedly connected to the side surface of the slider 605. Small holes are opened on the surface of the adsorption plate 606. A molecular sieve is arranged inside the adsorption plate 606. The activity grooves 603 are equally spaced on the surface of the rotating plate 602.

[0031] After the mixed gas enters the inside of the processing box 6, by starting the motor 601, the output shaft of the motor 601 drives the rotating plate 602 to rotate. During the rotation of the rotating plate 602, centrifugal force will be generated. Under the action of the centrifugal force, the slider 605 will slide inside the activity groove 603 to the side away from the connection of the three rotating plates 602. After the rotation speed of the motor 601 changes, the slider 605 will make a small-range reciprocating movement inside the activity groove 603, thereby driving the adsorption plate 606 to make a small-range reciprocating movement, enhancing the direct adsorption effect of the molecular sieve inside the adsorption plate 606 on hydrogen sulfide.

[0032] Embodiment 2: On the basis of Embodiment 1, the heating mechanism includes a shunt pipe 401, a connecting pipe 402, and a heating box 403. The shunt pipe 401 is fixedly connected to the bottom end of the communicating pipe 4. The connecting pipe 402 is fixedly connected to the side surface of the shunt pipe 401. The heating box 403 is fixedly installed at the top of the inner wall of the processing box 6. Multiple shunt pipes 401 are communicated through the connecting pipe 402. An electric heating pipe (not shown in the figure) is installed inside the heating box 403, and its model is nickel-based alloy steel Incoloy800. A ventilation valve is fixedly installed at the bottom of the heating box 403. The ventilation valve is a one-way valve 9 (not shown in the figure), and only allows gas to flow from the inside of the heating box 403 to the inside of the processing box 6.

[0033] The mixed gas enters the inside of the processing box 6 through the communicating pipe 4. First, it enters the inside of the heating box 403 through multiple shunt pipes 401. After being heated at a high temperature inside the heating box 403, the hydrogen sulfide in the waste gas is oxidized into harmless products, such as sulfur dioxide and water vapor, through high-temperature combustion. After heating for a period of time, by opening the ventilation valve, the remaining gas enters the inside of the processing box 6, converting part of the hydrogen sulfide into sulfur dioxide and water vapor, thereby improving the treatment effect on hydrogen sulfide.

[0034] By arranging multiple shunt pipes 401, the flow rate of the mixed gas when entering can be slowed down, and at the same time, the heating time can be increased. The heating time can also be controlled through the ventilation valve.

[0035] Embodiment 3: An adsorption tube 404 is fixedly connected to the top of the inner wall of the heating box 403. The inner wall of the adsorption tube 404 is filled with activated carbon. A exhaust pipe 7 is fixedly connected to the bottom of the outer surface of the treatment box 6. The inside of the exhaust pipe 7 is filled with an activated carbon tube 8.

[0036] Before the mixed gas enters the heating box 403, it will enter the inside of the adsorption tube 404 through multiple shunt tubes 401. The water vapor and part of the hydrogen sulfide gas are adsorbed by the activated carbon inside. When the gas after passing through the molecular sieve adsorption is discharged from the exhaust pipe 7, the water vapor and residual hydrogen sulfide gas are also adsorbed by the activated carbon tube inside, further improving the treatment effect on hydrogen sulfide gas.

[0037] Working principle: The mixed gas generated in the graphitization furnace 1 enters the inside of the connecting pipe 4 through the air outlet valve 3, and then enters the inside of the treatment box 6 through the connecting pipe 4. First, it passes through the heating box 403 for high-temperature heating. The hydrogen sulfide in the waste gas is oxidized into harmless products by high-temperature combustion. Then, under the adsorption of the rotating adsorption plate 606, most of the hydrogen sulfide is absorbed. When it is discharged from the exhaust pipe 7, the water vapor and residual hydrogen sulfide gas are adsorbed by the activated carbon tube inside.

[0038] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

Claims

1. A hydrogen sulfide removal device for the tail gas of a graphitization furnace of a turbocharged turbulator, comprising a graphitization furnace (1) and a turbocharged turbulator (5) fixedly installed at the feed inlet of the graphitization furnace (1), characterized in that: An air outlet valve (3) and a pressure gauge (2) are fixedly installed at the top of the graphitization furnace (1). A connecting pipe (4) is fixedly connected to the side of the air outlet valve (3). One end of the connecting pipe (4) away from the air outlet valve (3) is fixedly connected to a treatment box (6). A removal device is arranged inside the treatment box (6). The removal device includes a heating mechanism and an adsorption mechanism. The adsorption mechanism includes a motor (601), a rotating plate (602), an activity groove (603), a telescopic spring (604), a slider (605), and an adsorption plate (606). The motor (601) is fixedly installed at the inner bottom of the treatment box (6). The center of the bottom of the rotating plate (602) is connected to the output end of the motor (601). The activity groove (603) is formed on the outer surface of the rotating plate (602). The telescopic spring (604) is fixedly connected to one side of the inner wall of the activity groove (603). The slider (605) is fixedly connected to one end of the telescopic spring (604). The adsorption plate (606) is fixedly connected to the side of the slider (605).

2. The hydrogen sulfide removal device for the graphitization furnace tail gas of the turbocharged turbulator according to claim 1, characterized in that: Small holes are formed on the surface of the adsorption plate (606). Molecular sieves are arranged inside the adsorption plate (606). The activity grooves (603) are equally spaced on the surface of the rotating plate (602).

3. The hydrogen sulfide removal device for the graphite furnace tail gas of the turbocharged turbulator according to claim 1, characterized in that: The heating mechanism includes a shunt pipe (401), a connecting pipe (402), and a heating box (403). The shunt pipe (401) is fixedly connected to the bottom end of the connecting pipe (4). The connecting pipe (402) is fixedly connected to the side of the shunt pipe (401). The heating box (403) is fixedly installed at the inner top of the treatment box (6).

4. The hydrogen sulfide removal device for the graphite furnace tail gas of the turbocharged turbulator according to claim 3, characterized in that: Multiple shunt pipes (401) are connected through the connecting pipe (402). Electric heating tubes are installed inside the heating box (403).

5. The hydrogen sulfide removal device for the graphitization furnace tail gas of the turbocharged turbulator according to claim 3, characterized in that: An adsorption pipe (404) is fixedly connected to the inner top of the heating box (403). Activated carbon is filled in the inner wall of the adsorption pipe (404).

6. The hydrogen sulfide removal device for the graphitization furnace tail gas of the turbocharged turbulator according to claim 3, wherein: An air vent valve is fixedly installed at the bottom of the heating box (403). The air vent valve is a one-way valve and only allows gas to flow from the inside of the heating box (403) to the inside of the treatment box (6).

7. The hydrogen sulfide removal device for the graphitization furnace tail gas of the turbocharged turbulator according to claim 1, wherein: An exhaust pipe (7) is fixedly connected to the outer bottom of the treatment box (6). An activated carbon pipe (8) is filled in the exhaust pipe (7).

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