Carbon powder conveying device for aluminum carbon flue gas treatment

Abstract

The utility model relates to a conveying device, in particular to a carbon powder conveying device for aluminum carbon flue gas treatment. Comprising a carbon powder adsorption reactor, wherein an arch breaking device is arranged below the carbon powder adsorption reactor; wherein the carbon powder adsorption reactor structurally comprises a shell, a material mixing and arch breaking cone is arranged at the center in a cavity of the shell, the material mixing and arch breaking cone is fixed by a supporting piece, a feeding pipe inserted into the cavity of the shell is arranged at the lower part of the shell, and the bottom of the shell is connected with a throat; the arch breaking device is structurally characterized in that a reamer is arranged at the bottom in a cavity of the ash bucket and fixed on a reamer shaft, two ends of the reamer shaft respectively penetrate through the wall of the ash bucket, one end of the reamer shaft is connected with a motor driving device, and the other end of the reamer shaft is connected with a shaft seat. The device is convenient to overhaul and maintain. And the carbon powder conveying process is short, the contact between the carbon powder and the external environment, especially low-temperature gas, is small, and the carbon powder hardening probability is fundamentally reduced.

Description

Technical Field

[0001] The utility model relates to a conveying device, in particular to a carbon powder conveying device for treating carbon fume for aluminum. Background Art

[0002] The pollutants in carbon flue gas are mainly fluoride, particulate matter, asphalt fume, benzopyrene, sulfur dioxide and nitrogen oxides. The flue gas composition is complex and the flue gas conditions fluctuate. Its effective control has always been a difficult problem in the industry.

[0003] In recent years, the purification technology used in the field of carbon flue gas purification has generally adopted electric tar precipitator or carbon powder adsorption technology for the treatment of asphalt smoke and benzopyrene.

[0004] However, the fluidity of carbon powder deteriorates after adsorbing organic matter in the flue gas. For example, when carbon powder adsorbs asphalt smoke, benzopyrene, etc., problems such as blockage and compaction often occur, causing the purification system to be unable to operate stably for a long time and easily affected by the fluctuations of pollutants in the original flue gas and requiring shutdown for maintenance. Summary of the invention

[0005] In order to solve the above technical problems, the utility model provides a carbon powder conveying device for aluminum carbon fume treatment, the purpose of which is to prevent the high viscosity carbon powder from being conveyed unsmoothly.

[0006] To achieve the above-mentioned purpose, the utility model provides a carbon powder conveying device for aluminum carbon flue gas treatment, comprising: a carbon powder adsorption reactor, wherein an arch breaking device is provided below the carbon powder adsorption reactor; wherein the carbon powder adsorption reactor has the structure of: a shell, a mixing arch breaking cone is provided at the center of the shell cavity, the mixing arch breaking cone is fixed by a support, a feed pipe inserted into the shell cavity is provided at the lower part of the shell, and the bottom of the shell is connected to the throat; the arch breaking device has the structure of: an ash hopper, a reamer is provided at the bottom of the ash hopper cavity, the reamer is fixed on the reamer shaft, both ends of the reamer shaft respectively pass through the ash hopper wall, one end of the reamer shaft is connected to the motor drive device, and the other end of the reamer shaft is connected to the shaft seat.

[0007] The support members are divided into two groups, one group is evenly arranged along the top edge of the mixing arch-breaking cone, and the other group is evenly arranged along the middle and lower part of the mixing arch-breaking cone.

[0008] One end of the support member is fixed on the inner wall of the shell, and the other end of the support member is fixed on the shell of the mixing arch-breaking cone.

[0009] The feed pipe part in the shell is arranged above the throat.

[0010] The support members evenly arranged along the top edge of the mixing arch-breaking cone are arranged horizontally; the support members evenly arranged along the middle and lower part of the mixing arch-breaking cone are arranged obliquely, and the support member part connected to the shell is lower than the support member part connected to the mixing arch-breaking cone.

[0011] The upper side wall of the ash hopper is provided with 4-8 flow-aiding air inlets, an air duct is provided at the flow-aiding air inlet, a vibrating diaphragm is provided in the air duct, and a guide plate is provided at the air duct outlet.

[0012] The cross-sectional shape of the guide plate is an "X" shape, and the gap between the two sides of the guide plate and the inner wall of the ash hopper is 2-4 mm.

[0013] There are three reamer shafts, the reamer on the middle reamer shaft is cross-arranged with the reamers on both sides, and one ends of the three reamer shafts are respectively connected through motor transmission devices.

[0014] The motor transmission device has a structure of: a motor output shaft, a driving wheel arranged on the motor output shaft, the motor output shaft is connected to the middle reamer shaft, driven wheels are arranged on the reamer shafts on both sides, and the driving wheel meshes with the two driven wheels.

[0015] A conveying method of a carbon powder conveying device for treating carbon flue gas for aluminum uses, which utilizes a heat source to heat air to 80°C-90°C, supplies air to a chute to heat the conveyed carbon powder, prevents the carbon powder from contacting cold air or other cold sources and causing agglomeration during the conveying process, and delivers the carbon powder to a feed pipe of a carbon powder adsorption reactor. The carbon powder enters the carbon powder adsorption reactor and is turbulently mixed with the flue gas entering from the top of the shell to adsorb and adhere to organic matter in the flue gas. The carbon powder is discharged from the throat and then enters an ash hopper. A reamer is used to break the arch in the ash hopper, and intermittent air supply is used to prevent the wall from sticking to the wall. The carbon powder is discharged from the bottom of the ash hopper and then delivered to the chute. After being delivered to the chute, the carbon powder is re-delivered to the reactor through the chute to participate in the reaction. The carbon powder is recycled and discharged after reaching a certain adhesion state.

[0016] Advantages and effects of the utility model: The utility model heats the carbon powder in the chute to prevent the carbon powder from contacting cold air or other cold sources during the transportation process, thereby solving the problem of carbon powder agglomeration and blockage during transportation. The utility model uses the mixing arch-breaking cone in the carbon powder adsorption reactor to cause turbulent mixing of flue gas and carbon powder, thereby solving the problems of insufficient carbon powder adsorption reaction and low reactor efficiency. The equipment of the utility model is easy to repair and maintain. In addition, the carbon powder transportation process is short, and the carbon powder has less contact with the external environment, especially low-temperature gas, which fundamentally reduces the probability of carbon powder agglomeration. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model.

[0018] Figure 2 yes Figure 1 Partial top view of the middle arch breaking device.

[0019] In the figure: 1. carbon powder adsorption reactor; 11. shell; 12. mixing arch-breaking cone; 13. support member; 14. feed pipe; 15. throat; 2. arch-breaking device; 21. ash hopper; 22. reamer; 23. reamer shaft; 24. shaft seat; 25. flow-aiding air inlet; 26. air duct; 27. vibrating diaphragm; 28. guide plate; 29. ​​motor output shaft; 291. driving wheel; 292. driven wheel. DETAILED DESCRIPTION

[0020] The following is a clear and complete description of the technical solutions in the embodiments of the utility model in conjunction with the accompanying drawings. It is obvious that the described embodiments are only part of the embodiments, 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. Example 1

[0021] As shown in the figure, a carbon powder conveying device for carbon flue gas treatment for aluminum includes: a carbon powder adsorption reactor 1, and an arch breaking device 2 is provided below the carbon powder adsorption reactor 1; wherein the structure of the carbon powder adsorption reactor 1 is: a shell 11, a mixing arch breaking cone 12 is provided in the center of the shell 11 cavity, the mixing arch breaking cone 12 is fixed by a support 13, a feed pipe 14 is provided at the lower part of the shell 11 and inserted into the shell 11 cavity, and the bottom of the shell 11 is connected to the throat 15; the structure of the arch breaking device 2 is: an ash hopper 21, a reamer 22 is provided at the bottom of the ash hopper 21 cavity, the reamer 22 is fixed on the reamer shaft 23, both ends of the reamer shaft 23 pass through the ash hopper wall respectively, one end of the reamer shaft 23 is connected to the motor drive device, and the other end of the reamer shaft 23 is connected to the shaft seat 24.

[0022] The support members 13 are divided into two groups, one group is evenly arranged along the top edge of the mixing arch-breaking cone 12, and the other group is evenly arranged along the middle and lower part of the mixing arch-breaking cone 12, and each group of support members 13 has 4 members.

[0023] One end of the support member 13 is fixed on the inner wall of the shell 11, and the other end of the support member 13 is fixed on the shell of the mixing arch-breaking cone 12. The feed pipe 14 in the shell 11 is arranged above the throat 15, and the feed pipe 14 discharges the material on the center line of the shell. The support members 13 are evenly arranged horizontally along the top edge of the mixing arch-breaking cone 12; the support members 13 evenly arranged along the middle and lower part of the mixing arch-breaking cone are tilted, and the support member 13 part connected to the shell 11 is lower than the support member 13 part connected to the mixing arch-breaking cone 12. In this way, the uniformity of carbon powder adsorption is ensured, and uneven carbon powder adsorption is avoided, which causes the problem of hardening caused by excessive carbon powder adsorption locally or at a certain moment.

[0024] The upper side wall of the ash hopper 21 is provided with 4-8 air inlets 25, and in this embodiment, there are 4 inlets. An air duct 26 is provided at the air inlet, and the air duct 26 extends into the cavity of the ash hopper 21. A vibrating diaphragm 27 is provided in the air duct 26, and a guide plate 28 is provided at the outlet of the air duct 26.

[0025] The cross-sectional shape of the guide plate 28 is a "X" shape, and the gap between the two sides of the guide plate 28 and the inner wall of the ash hopper is 2-4 mm.

[0026] There are three reamer shafts 23 , and the reamer on the middle reamer shaft 23 is cross-arranged with the reamers 22 on both sides, and one ends of the three reamer shafts 23 are respectively connected through a motor transmission device.

[0027] The motor transmission device has a structure of: a motor output shaft 29, a driving wheel 291 arranged on the motor output shaft 29, the motor output shaft 29 is connected to the middle reamer shaft 23, and driven wheels 292 are arranged on the reamer shafts 23 on both sides, and the driving wheel 291 is meshed with the two driven wheels 292.

[0028] A conveying method of a carbon powder conveying device for treating carbon flue gas for aluminum, which utilizes a heat source to heat air to 80-90°C, wherein the heat source is electric heating, ensuring that the material is always at a temperature not lower than 80°C; air is supplied to a chute to heat the conveyed carbon powder, and during the conveying process, the carbon powder is prevented from contacting cold air or other cold sources to cause agglomeration, and then the carbon powder is sent to a feed pipe of a carbon powder adsorption reactor, and the carbon powder enters the carbon powder adsorption reactor, and is mixed with the flue gas turbulence entering from the top of a shell, and adsorbs and adheres to organic matter in the flue gas, and then enters an ash hopper after being discharged from a throat, and a reamer is used to break the arch in the ash hopper, and intermittent air supply is used to prevent the wall from sticking to the wall, and the flow-aiding wind enters the air duct from the flow-aiding wind inlet, blows onto a guide plate, and blows onto the inner wall of the ash hopper from both sides of the guide plate, and then is discharged from the bottom of the ash hopper and then sent to the chute, and then sent back to the reactor through the chute to participate in the reaction, and the carbon powder is recycled, and is discharged after reaching a certain adhesion state.

[0029] In this way, the carbon powder adsorption reactor with high-efficiency mixed adsorption is used to fully adsorb organic matter in the flue gas, ensuring the uniformity of carbon powder adsorption and avoiding uneven carbon powder adsorption, which may cause the problem of compaction due to excessive carbon powder adsorption in some areas or at certain moments. The arch breaking device is used to reduce the compaction problem by wall flow assistance, reamer arch breaking and other measures in the carbon powder accumulation area. The powder conveying process is reduced by circulating carbon powder directly into the reactor. Example 2

[0030] In the first embodiment, each group of supporting members 13 is 8 in number, and there is one reamer shaft, which is directly connected to the motor output shaft. The rest is the same as in the first embodiment.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is 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. A carbon powder conveying device for treating aluminum carbon flue gas, characterized in that It includes: a carbon powder adsorption reactor, and an arch breaking device is provided below the carbon powder adsorption reactor; wherein the structure of the carbon powder adsorption reactor is: a shell, a mixing arch breaking cone is provided in the center of the shell cavity, the mixing arch breaking cone is fixed by a support, a feed pipe inserted into the shell cavity is provided at the lower part of the shell, and the bottom of the shell is connected to the throat; the structure of the arch breaking device is: an ash hopper, a reamer is provided at the bottom of the ash hopper cavity, the reamer is fixed on the reamer shaft, both ends of the reamer shaft pass through the ash hopper wall respectively, one end of the reamer shaft is connected to the motor drive device, and the other end of the reamer shaft is connected to the shaft seat.

2. The carbon powder conveying device for treating aluminum carbon fume according to claim 1 is characterized in that The support members are divided into two groups, one group is evenly arranged along the top edge of the mixing arch-breaking cone, and the other group is evenly arranged along the middle and lower part of the mixing arch-breaking cone.

3. A carbon powder conveying device for treating aluminum carbon fume according to claim 1 or 2, characterized in that One end of the support member is fixed on the inner wall of the shell, and the other end of the support member is fixed on the shell of the mixing arch-breaking cone.

4. The carbon powder conveying device for treating aluminum carbon fume according to claim 1 is characterized in that The feed pipe part in the shell is arranged above the throat.

5. The carbon powder conveying device for treating aluminum carbon fume according to claim 2 is characterized in that The support members evenly arranged along the top edge of the mixing arch-breaking cone are horizontally arranged; the support members evenly arranged along the middle and lower part of the mixing arch-breaking cone are inclinedly arranged, and the support member part connected to the shell is lower than the support member part connected to the mixing arch-breaking cone.

6. The carbon powder conveying device for treating aluminum carbon fume according to claim 1 is characterized in that The upper side wall of the ash hopper is provided with 4-8 flow-aiding air inlets, an air duct is provided at the flow-aiding air inlet, a vibrating diaphragm is provided in the air duct, and a guide plate is provided at the air duct outlet.

7. A carbon powder conveying device for treating aluminum carbon fume according to claim 6, characterized in that The cross-sectional shape of the guide plate is an "X" shape, and the gap between the two sides of the guide plate and the inner wall of the ash hopper is 2-4 mm.

8. The carbon powder conveying device for treating aluminum carbon fume according to claim 1 is characterized in that There are three reamer shafts, the reamer on the middle reamer shaft is cross-arranged with the reamers on both sides, and one ends of the three reamer shafts are respectively connected through motor transmission devices.

9. A carbon powder conveying device for treating aluminum carbon fume according to claim 8, characterized in that The motor transmission device has a structure of: a motor output shaft, a driving wheel arranged on the motor output shaft, the motor output shaft is connected to the middle reamer shaft, driven wheels are arranged on the reamer shafts on both sides, and the driving wheel meshes with the two driven wheels.

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