Device for treating alternative fuel by using cement kiln

Abstract

The utility model discloses a device for treating alternative fuel by using a cement kiln in the field of alternative fuel application. The device comprises a stock bin, a spiral metering scale, a conveying pipe, a decomposing furnace and a rotary kiln. A dredging anti-blocking device is arranged at the position, close to the tertiary tuyere of the decomposing furnace, of the conveying pipe and comprises a shell, a servo motor, a rotating shaft, a motor gear, a fixed shaft and a dredging rod piece. A servo motor is arranged at the bottom of the left side of the shell, a power output shaft of the servo motor rotationally extends into the shell and is connected with a rotating shaft, and a motor gear is installed at the right end of the rotating shaft. A fixing shaft is installed on the right side in the shell and rotationally provided with a dredging rod piece, and the dredging rod piece is in gear transmission connection with the motor. According to the utility model, dredging and blocking prevention can be carried out in the alternative fuel feeding process, and the feeding efficiency is improved; meanwhile, toxic gas generated by alternative fuel in the feeding process can be absorbed, and environmental pollution is avoided.

Description

Technical Field

[0001] The utility model relates to the application field of alternative fuels, in particular to a device for disposing alternative fuels by utilizing a cement kiln. Background Art

[0002] Alternative fuels used in cement kilns include waste plastic particles and waste tire particles. When the alternative fuel is fed into the tertiary air outlet of the decomposition furnace through the delivery pipe, it is easy to get clogged. In addition, due to the high temperature near the tertiary air outlet, the waste plastic particles and waste tire particles will be decomposed by heat to produce toxic gases. If not treated, they will be discharged into the air along the delivery pipe to pollute the environment. Utility Model Content

[0003] The main purpose of the utility model is to provide a device for disposing alternative fuels by using a cement kiln, so as to solve the problems mentioned in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A device for disposing alternative fuels using a cement kiln comprises a silo, a spiral metering scale, a conveying pipe, a decomposition furnace and a rotary kiln. The silo contains alternative fuels. The feed port of the spiral metering scale is connected to the silo. The discharge port of the spiral metering scale is connected to the tertiary air port of the decomposition furnace through the conveying pipe. The decomposition furnace is connected to the rotary kiln. A dredging and anti-blocking device is provided at the conveying pipe near the tertiary air port of the decomposition furnace. The dredging and anti-blocking device comprises a housing, a servo motor, a rotating shaft, a motor gear, a fixed shaft and a dredging rod. A servo motor is provided at the bottom of the left side of the housing. The power output shaft of the servo motor rotates and extends into the housing and is connected to the rotating shaft. The right end of the rotating shaft is installed with a motor gear. A fixed shaft is installed on the right side of the housing. The fixed shaft is rotatably installed with a dredging rod. The dredging rod is connected to the motor gear in a transmission manner. A through strip groove and a plurality of air holes are provided on the housing and the conveying pipe. The dredging rod movably passes through the strip groove and enters the conveying pipe. An absorption device is provided on the upper part of the housing.

[0006] Furthermore, the dredging rod includes a half gear, a connecting rod and a scraper fixed in sequence, the center hole of the half gear cooperates with the fixed shaft and the upper end of the half gear is meshed with the motor gear, the lower end of the half gear is fixed to the connecting rod, and the scraper contacts the bottom of the conveying pipe.

[0007] Furthermore, the absorption device comprises a mesh plate and activated carbon, wherein the mesh plate has two layers, the activated carbon is arranged between the two layers of mesh plates, and the absorption device is used to absorb the toxic gas generated by the thermal decomposition of waste plastic particles and waste tire particles.

[0008] Furthermore, a filter screen is provided below the air vent, and the function of the filter screen is to minimize the entry of alternative fuel debris into the dredging and anti-blocking device during the feeding process.

[0009] Furthermore, a support seat is provided in the middle of the rotating shaft, the support seat is fixed to the bottom of the shell, and a bearing is installed in the support seat, and the rotating shaft and the fixed shaft are parallel to the bottom of the shell.

[0010] Furthermore, an exhaust pipe is inserted into the top of the shell, and the exhaust pipe is connected to an exhaust fan.

[0011] The utility model also includes other components that enable the device for disposing alternative fuels using cement kilns to work normally, and these devices or components all use conventional technical means in the field. In addition, the devices and components not limited in the utility model all use conventional technical means in the field, such as the servo motor and spiral metering scale in this application. In the specific implementation process, the appropriate device or component model can be selected according to the specific working scenario.

[0012] The working principle of the utility model is: the servo motor drives the motor gear to rotate through the rotating shaft, and the motor gear meshes with the half gear on the upper end of the dredging rod, so that the dredging rod swings back and forth around the fixed axis in the conveying pipe to dredge and prevent blockage. When the alternative fuel is close to the tertiary air outlet with higher temperature, the toxic gas generated can enter the interior of the dredging and anti-blocking device through the air vents and be absorbed by the absorption device arranged therein to avoid polluting the environment.

[0013] Compared with the prior art, the utility model has the following beneficial effects: 1. It can dredge and prevent blockage in the alternative fuel feeding process, thereby improving feeding efficiency. 2. It can absorb toxic gases generated by the alternative fuel during the feeding process, thereby avoiding environmental pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a schematic diagram of the overall structure of a device for treating alternative fuels using a cement kiln.

[0015] Figure 2 It is a structural schematic diagram of the dredging and anti-blocking device of the utility model.

[0016] Figure 3 for Figure 2 A partial enlarged view of area A.

[0017] Figure 4 This is a schematic diagram of the installation of the motor gear and the half gear of the utility model.

[0018] In the figure: 1. casing; 2. servo motor; 3. rotating shaft; 4. motor gear; 5. fixed shaft; 6. half gear; 7. connecting rod; 8. scraper; 9. strip groove; 10. air vent; 11. filter screen; 12. mesh plate; 13. activated carbon; 14. exhaust pipe; 15. support seat; 16. silo; 17. spiral metering scale; 18. conveying pipe; 19. decomposition furnace; 20. rotary kiln; 100. dredging and anti-blocking device. DETAILED DESCRIPTION

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] Example:

[0021] like Figures 1 to 4 As shown, a device for disposing alternative fuels using a cement kiln includes a silo 16, a spiral metering scale 17, a conveying pipe 18, a decomposition furnace 19 and a rotary kiln 20. The silo 16 contains alternative fuels. The feed port of the spiral metering scale 17 is connected to the silo 16. The discharge port of the spiral metering scale 17 is connected to the tertiary air port of the decomposition furnace 19 through the conveying pipe 18. The decomposition furnace 19 is connected to the rotary kiln 20. A dredging and anti-blocking device 100 is provided at the conveying pipe 18 near the tertiary air port of the decomposition furnace 19. The dredging and anti-blocking device 100 includes a housing 1, a servo motor 2, a rotating shaft 3, a motor gear 4, a fixed shaft 5 and a dredging rod. A servo motor 2 is provided at the bottom of the left side of the housing 1. The power output shaft of the servo motor 2 rotates and extends into the housing 1 and is connected to the rotating shaft 3. The right end of the rotating shaft 3 is installed with a motor gear 4. A fixed shaft 5 is installed on the right side of the housing 1. The fixed shaft 5 is rotatably installed with a dredging rod. The dredging rod is transmission-connected with the motor gear 4. The outer shell 1 and the delivery pipe 18 are provided with through strip grooves 9 and a plurality of air holes 10. The dredging rod movably passes through the strip grooves 9 and enters the delivery pipe 18. An absorption device is arranged on the upper part of the outer shell 1.

[0022] Specifically, the dredging rod comprises a half gear 6, a connecting rod 7 and a scraper 8 which are fixed in sequence, the center hole of the half gear 6 matches the fixed shaft 5 and the upper end of the half gear 6 meshes with the motor gear 4, the lower end of the half gear 6 is fixed with the connecting rod 7, and the scraper 8 contacts the bottom of the conveying pipe 18. The absorption device comprises a mesh plate 12 and activated carbon 13, the mesh plate 12 has two layers, the upper and lower layers, and the activated carbon 13 is arranged between the two layers of the mesh plate 12.

[0023] In addition, a filter screen 11 is provided below the air vent 10. A support seat 15 is provided in the middle of the rotating shaft 3, the support seat 15 is fixed to the bottom of the housing 1, and a bearing is installed in the support seat 15. The rotating shaft 3 and the fixed shaft 5 are parallel to the bottom of the housing 1. An exhaust pipe 14 is inserted into the top of the housing 1, and the exhaust pipe 14 is connected to an exhaust fan.

[0024] The working principle of the device for treating alternative fuels by cement kiln is as follows: the servo motor 2 drives the motor gear 4 to rotate through the rotating shaft 3, and the motor gear 4 meshes with the half gear 6 at the upper end of the dredging rod, so that the dredging rod swings back and forth around the fixed shaft 5 in the conveying pipe 18 to dredge and prevent blockage. When the alternative fuel is close to the tertiary air outlet with higher temperature, the generated toxic gas can enter the interior of the dredging and anti-blocking device 100 along the air vent 10 and be absorbed by the absorption device arranged therein to avoid polluting the environment.

[0025] The above embodiments are only descriptions of the preferred implementation modes of the present utility model, and are not intended to limit the scope of the present utility model. Without departing from the design spirit of the present utility model, various modifications and improvements made to the technical solutions of the present utility model by ordinary technicians in this field should fall within the protection scope of the present utility model.

Claims

1. A device for disposing alternative fuels by using a cement kiln, comprising a silo (16), a spiral metering scale (17), a conveying pipe (18), a decomposition furnace (19) and a rotary kiln (20), wherein the silo (16) contains alternative fuels, the feed port of the spiral metering scale (17) is connected to the silo (16), the discharge port of the spiral metering scale (17) is connected to the tertiary air port of the decomposition furnace (19) through the conveying pipe (18), and the decomposition furnace (19) is connected to the rotary kiln (20), characterized in that: The conveying pipe (18) is provided with a dredging and anti-blocking device (100) at the tertiary air outlet near the decomposition furnace (19), and the dredging and anti-blocking device (100) comprises a housing (1), a servo motor (2), a rotating shaft (3), a motor gear (4), a fixed shaft (5) and a dredging rod; a servo motor (2) is provided at the bottom of the left side of the housing (1), a power output shaft of the servo motor (2) rotates and extends into the housing (1) and is connected to the rotating shaft (3), and the right end of the rotating shaft (3) is installed with the motor gear (4); a fixed shaft (5) is installed on the right side of the housing (1), and a dredging rod is rotatably installed on the fixed shaft (5), and the dredging rod is transmission-connected with the motor gear (4); a through strip groove (9) and a plurality of air holes (10) are provided on the housing (1) and the conveying pipe (18), and the dredging rod movably passes through the strip groove (9) and enters the conveying pipe (18), and an absorption device is provided on the upper part of the housing (1).

2. The device for treating alternative fuels using cement kilns according to claim 1, characterized in that: The dredging rod comprises a half gear (6), a connecting rod (7) and a scraper (8) which are fixedly connected in sequence, the center hole of the half gear (6) matches the fixed shaft (5) and the upper end of the half gear (6) is meshed with the motor gear (4), the lower end of the half gear (6) is fixedly connected to the connecting rod (7), and the scraper (8) is in contact with the bottom of the conveying pipe (18).

3. The device for treating alternative fuels using cement kilns according to claim 1, characterized in that: The absorption device comprises a mesh plate (12) and activated carbon (13); the mesh plate (12) comprises two layers, an upper layer and a lower layer; and the activated carbon (13) is arranged between the two layers of the mesh plate (12).

4. The device for treating alternative fuels using cement kilns according to claim 1, characterized in that: A filter screen (11) is provided below the air vent (10).

5. The device for treating alternative fuels using cement kilns according to claim 1, characterized in that: A support seat (15) is provided in the middle of the rotating shaft (3), the support seat (15) is fixed to the bottom of the outer shell (1), and a bearing is installed in the support seat (15). The rotating shaft (3) and the fixed shaft (5) are both parallel to the bottom of the outer shell (1).

6. The device for treating alternative fuels using cement kilns according to claim 1, characterized in that: An exhaust pipe (14) is inserted into the top of the housing (1), and the exhaust pipe (14) is connected to an exhaust fan.

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