Energy-saving refining system for phosphoric acid method activated carbon production

Abstract

The utility model relates to the technical field of activated carbon production, in particular to an energy-saving refining system for phosphoric acid method activated carbon production, which comprises a stirring kettle, a heating medium channel is arranged in the side wall of the stirring kettle, and the side wall of the stirring kettle is provided with a mounting hole, an acid liquor feed port, a wood chip feed port, a discharge port, a medium inlet and a medium outlet. A temperature sensor is arranged at the mounting hole, the medium inlet and the medium outlet are connected with the two ends of the heating medium channel respectively, and flow adjusting valves are arranged at the acid liquor feeding port, the wood chip feeding port and the medium inlet. According to the energy-saving refining system for phosphoric acid method activated carbon production, the material mixing precision can be improved, waste is avoided, and the stirring kettle can be conveniently cleaned.

Description

Technical Field

[0001] The utility model relates to the technical field of activated carbon production, in particular to an energy-saving material mixing system for phosphoric acid activated carbon production. Background Art

[0002] The phosphoric acid activated carbon production process is to use phosphoric acid as an activator, mix it with carbon-containing raw materials such as sawdust, and produce activated carbon by activation reaction at high temperature. The phosphoric acid activated carbon production process can refer to the Chinese invention patent with application number CN201110458802.3 and the name of the phosphoric acid activated carbon automatic production line. The function of the mixing system is to evenly mix phosphoric acid and carbon-containing raw materials. During the mixing process, phosphoric acid and raw materials will adhere to the inner wall of the mixing equipment, resulting in incomplete mixing, which is not conducive to controlling the material mixing accuracy, resulting in waste, and it is not easy to clean the mixing system. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an energy-saving material mixing system for the production of activated carbon by phosphoric acid method, which can improve the material mixing precision control.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: an energy-saving material mixing system for the production of activated carbon by the phosphoric acid method, comprising a stirring kettle, a heating medium channel is provided in the side wall of the stirring kettle, the side wall of the stirring kettle is provided with a mounting hole, an acid liquid feed port, a sawdust feed port, a discharge port, a medium inlet and a medium outlet, a temperature sensor is provided at the mounting hole, the medium inlet and the medium outlet are respectively connected to the two ends of the heating medium channel, and the acid liquid feed port, the sawdust feed port and the medium inlet are all provided with flow regulating valves.

[0005] Furthermore, the heating medium channel is spirally arranged in the side wall of the stirring tank.

[0006] Furthermore, it also includes a motor, a rotating shaft and a stirring rod, wherein the motor is arranged on the stirring kettle, one end of the rotating shaft is connected to the motor, the other end of the rotating shaft extends into the inner cavity of the stirring kettle, and the stirring rod is arranged at the other end of the rotating shaft.

[0007] Furthermore, a medium input pipe is provided at the medium inlet, the flow regulating valve is arranged on the medium input pipe, and the medium input pipe is used to connect to the smoke exhaust port of the carbonization furnace.

[0008] Furthermore, a medium output pipe is provided at the medium outlet, and the medium output pipe is used to connect to an air purifier.

[0009] The beneficial effects of the utility model are: an energy-saving material mixing system for the production of activated carbon by the phosphoric acid method, wherein acid liquid and sawdust are added to the stirring kettle through the acid liquid feed port and the sawdust feed port, and a heating medium is introduced into the heating medium channel in the side wall of the stirring kettle through the medium inlet. The heating medium can be industrial waste water or industrial waste gas generated by the carbonization production line. On the one hand, a flow regulating valve is used to control the ratio requirements of acid liquid and sawdust, and at the same time, a temperature sensor is used to monitor the temperature of the stirring kettle. According to the amount of acid liquid and sawdust added and the temperature, the flow regulating valve is used to control the amount of heating medium introduced, thereby controlling the temperature, appropriately increasing the temperature to reduce the viscosity of phosphoric acid, and avoiding the phosphoric acid and raw materials from adhering to the inner wall of the stirring kettle, thereby improving the material mixing accuracy, which is beneficial to the improvement of the quality of carbon powder, and avoids waste, and is also convenient for cleaning the stirring kettle. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of an energy-saving material mixing system for the production of activated carbon by phosphoric acid method;

[0011] Figure 2 Another schematic diagram of the structure of an energy-saving material mixing system for the production of activated carbon by phosphoric acid process;

[0012] Figure 3 A cross-sectional view of an energy-saving refining system for the production of activated carbon by the phosphoric acid process;

[0013] Figure 4 It is a schematic diagram of the structure of a stirred tank;

[0014] Description of labels:

[0015] 1. Stirring kettle; 2. Heating medium channel; 3. Mounting hole; 31. Temperature sensor; 4. Acid feed port; 5. Sawdust feed port; 6. Discharge port; 7. Medium inlet; 71. Medium input pipe; 8. Medium outlet; 81. Medium output pipe; 9. Flow control valve; 10. Motor; 11. Rotating shaft; 12. Stirring rod; 13. Carbonization furnace; 14. Air purifier. DETAILED DESCRIPTION

[0016] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0017] The utility model provides an energy-saving material mixing system for the production of activated carbon by phosphoric acid method, which is applied in activated carbon raw material mixing equipment.

[0018] Please refer to Figures 1 to 4As shown, the utility model is an energy-saving material mixing system for the production of activated carbon by phosphoric acid method, comprising a stirring kettle 1, a heating medium channel 2 is provided in the side wall of the stirring kettle 1, a mounting hole 3, an acid liquid feed port 4, a sawdust feed port 5, a discharge port 6, a medium inlet 7 and a medium outlet 8 are provided on the side wall of the stirring kettle 1, a temperature sensor 31 is provided at the mounting hole 3, the medium inlet 7 and the medium outlet 8 are respectively connected to the two ends of the heating medium channel 2, and the acid liquid feed port 4, the sawdust feed port 5 and the medium inlet 7 are all provided with flow regulating valves 9.

[0019] From the above description, it can be seen that the beneficial effects of the utility model are: an energy-saving material mixing system for the production of activated carbon by the phosphoric acid method, acid and sawdust are added to the stirring tank 1 through the acid feed port 4 and the sawdust feed port 5, and the heating medium is introduced into the heating medium channel 2 in the side wall of the stirring tank 1 through the medium inlet 7. The heating medium can be industrial wastewater or industrial waste gas generated by the carbonization production line. On the one hand, a flow control valve 9 is used to control the ratio requirements of acid and sawdust, and at the same time, a temperature sensor 31 is used to monitor the temperature of the stirring tank 1. According to the amount of acid and sawdust added and the temperature, the flow control valve 9 is used to control the amount of heating medium introduced, thereby controlling the temperature, appropriately increasing the temperature to reduce the viscosity of phosphoric acid, and avoiding the phosphoric acid and raw materials from adhering to the inner wall of the stirring tank 1, thereby improving the material mixing accuracy, which is beneficial to the improvement of the quality of carbon powder, and avoiding waste, and it is also convenient to clean the stirring tank 1.

[0020] In an optional embodiment, the heating medium channel 2 is spirally arranged in the side wall of the stirring tank 1.

[0021] It can be seen from the above description that the structure of the heating medium channel 2 is spiral, which is beneficial to improving the uniformity of heating of the stirring tank 1.

[0022] In an optional embodiment, it also includes a motor 10, a rotating shaft 11 and a stirring rod 12, wherein the motor 10 is arranged on the stirring tank 1, one end of the rotating shaft 11 is connected to the motor 10, and the other end of the rotating shaft 11 extends into the inner cavity of the stirring tank 1, and the stirring rod 12 is arranged at the other end of the rotating shaft 11.

[0023] It can be seen from the above description that the motor 10 is used to drive the rotating shaft 11 to rotate, thereby controlling the stirring direction and speed of the stirring rod 12 .

[0024] In an optional embodiment, a medium input pipe 71 is provided at the medium inlet 7 , and the flow regulating valve 9 is disposed on the medium input pipe 71 . The medium input pipe 71 is used to connect to a smoke exhaust port of the carbonization furnace 13 .

[0025] From the above description, it can be known that the medium input pipe 71 is used to receive the high-temperature flue gas discharged after the carbonization reaction of the carbonization furnace 13, and the heat energy contained in the flue gas is used to heat the stirring tank 1.

[0026] In an optional embodiment, a medium output pipe 81 is provided at the medium outlet 8 , and the medium output pipe 81 is used to connect to the air purifier 14 .

[0027] As can be seen from the above description, the utilized flue gas is guided to the air purifier 14 for filtering and purification to avoid polluting the environment.

[0028] The working principle of the utility model is: when in use, the temperature sensor 31 is used to monitor the temperature of the stirring tank 1, and the amount of acid, wood chips and heating medium entering the acid feed port 4, the wood chip feed port 5 and the medium inlet 7, as well as the output of the motor 10 are controlled according to the ratio requirements of the acid and wood chips and the temperature of the stirring tank 1.

[0029] Please refer to Figures 1 to 4 As shown, the first embodiment of the utility model is: an energy-saving material mixing system for the production of activated carbon by the phosphoric acid method, comprising a stirring kettle 1, a heating medium channel 2 is provided in the side wall of the stirring kettle 1, and a mounting hole 3, an acid liquid feed port 4, a wood chip feed port 5, a discharge port 6, a medium inlet 7 and a medium outlet 8 are provided on the side wall of the stirring kettle 1, a temperature sensor 31 is provided at the mounting hole 3, the medium inlet 7 and the medium outlet 8 are respectively connected to the two ends of the heating medium channel 2, and the acid liquid feed port 4, the wood chip feed port 5 and the medium inlet 7 are all provided with flow regulating valves 9.

[0030] The heating medium channel 2 is spirally arranged in the side wall of the stirring tank 1. It also includes a motor 10, a rotating shaft 11 and a stirring rod 12. The motor 10 is arranged on the stirring tank 1. One end of the rotating shaft 11 is connected to the motor 10. The other end of the rotating shaft 11 extends into the inner cavity of the stirring tank 1. The stirring rod 12 is arranged at the other end of the rotating shaft 11. A medium input pipe 71 is arranged at the medium inlet 7. The flow regulating valve 9 is arranged on the medium input pipe 71. The medium input pipe 71 is used to connect to the smoke exhaust port of the carbonization furnace 13. A medium output pipe 81 is arranged at the medium outlet 8. The medium output pipe 81 is used to connect to the air purifier 14.

[0031] In summary, the utility model provides an energy-saving material mixing system for the production of activated carbon by the phosphoric acid method. Acid and sawdust are added to the stirring kettle through the acid feed port and the sawdust feed port, and heating medium is introduced into the heating medium channel in the side wall of the stirring kettle through the medium inlet. The heating medium can be industrial wastewater or industrial waste gas generated by the carbonization production line. On the one hand, a flow regulating valve is used to control the ratio requirements of acid and sawdust, and at the same time, a temperature sensor is used to monitor the temperature of the stirring kettle. According to the amount of acid and sawdust added and the temperature, the flow regulating valve is used to control the amount of heating medium introduced, thereby controlling the temperature. The temperature is appropriately increased to reduce the viscosity of phosphoric acid, and phosphoric acid and raw materials are prevented from adhering to the inner wall of the stirring kettle, thereby improving the material mixing accuracy, which is beneficial to the improvement of the quality of carbon powder, and avoids waste, and is also convenient for cleaning the stirring kettle.

[0032] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. An energy-saving material mixing system for the production of activated carbon by phosphoric acid method, characterized in that: The invention comprises a stirring kettle, wherein a heating medium channel is arranged in the side wall of the stirring kettle, and a mounting hole, an acid liquid feed port, a sawdust feed port, a discharge port, a medium inlet and a medium outlet are arranged on the side wall of the stirring kettle, a temperature sensor is arranged at the mounting hole, the medium inlet and the medium outlet are respectively connected to the two ends of the heating medium channel, and flow regulating valves are arranged at the acid liquid feed port, the sawdust feed port and the medium inlet.

2. The energy-saving material refining system for the production of activated carbon by phosphoric acid process according to claim 1 is characterized in that: The heating medium channel is spirally arranged in the side wall of the stirring tank.

3. The energy-saving material refining system for the production of activated carbon by phosphoric acid process according to claim 1 is characterized in that: It also includes a motor, a rotating shaft and a stirring rod. The motor is arranged on the stirring kettle. One end of the rotating shaft is connected to the motor. The other end of the rotating shaft extends into the inner cavity of the stirring kettle. The stirring rod is arranged at the other end of the rotating shaft.

4. The energy-saving material refining system for the production of activated carbon by phosphoric acid process according to claim 1 is characterized in that: A medium input pipe is provided at the medium inlet, the flow regulating valve is arranged on the medium input pipe, and the medium input pipe is used to connect to the smoke exhaust port of the carbonization furnace.

5. The energy-saving material refining system for the production of activated carbon by phosphoric acid process according to claim 1 is characterized in that: A medium output pipe is provided at the medium outlet, and the medium output pipe is used to connect to an air purifier.

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