An environmental protection equipment for roasting waste desulfurizer

Abstract

The utility model discloses a kind of for waste desulfurizer's calcination environmental protection processing equipment, including boiling roasting furnace, boiling roasting furnace inside is provided with combustion cavity, combustion cavity is wide on top and narrow on bottom, multiple temperature measuring devices are fixedly installed in combustion cavity inner wall;Boiling roasting furnace is annular fixed and is communicated with multiple combustion-supporting pipes and multiple gas burners, gas burner and combustion-supporting pipe are all inclined to set, multiple gas burners and multiple combustion-supporting pipes are one-to-one correspondence, combustion-supporting pipe is close to the low side of combustion cavity center, and one end of gas burner in combustion cavity is close to combustion-supporting pipe.The utility model in the present application, the cooperation of gas burner, combustion-supporting pipe and component, can accurately heat the middle or top position in boiling roasting furnace, avoid that temperature gradient is too large, ensure that all waste desulfurizer is at optimum reaction temperature, reduce the incomplete reaction caused by insufficient temperature, improve reaction efficiency.

Description

Technical Field

[0001] This utility model relates to the field of roasting equipment technology, specifically to an environmentally friendly roasting treatment device for waste desulfurizing agents. Background Technology

[0002] Desulfurizing agents are commonly used in petrochemical, coal chemical, and natural gas desulfurization processes to remove the harmful component hydrogen sulfide. These agents are used in large quantities. However, after a period of use in industrial production, desulfurizing agents lose their activity and become waste desulfurizing agents. Directly discarding waste desulfurizing agents not only wastes resources but may also pollute the environment.

[0003] Existing environmentally friendly treatment equipment for the roasting of waste desulfurizing agents typically has an excessively large temperature gradient inside the roasting furnace, which cannot ensure that all waste desulfurizing agents are at the optimal reaction temperature. This increases the risk of incomplete reaction due to insufficient temperature and reduces reaction efficiency.

[0004] Therefore, we propose an environmentally friendly roasting treatment device for waste desulfurizing agents to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide an environmentally friendly roasting treatment device for waste desulfurizing agents, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an environmentally friendly roasting treatment device for waste desulfurizing agent, comprising a fluidized bed roasting furnace, wherein a combustion chamber is provided inside the fluidized bed roasting furnace, the combustion chamber being wider at the top and narrower at the bottom, and multiple temperature measuring devices are fixedly installed on the inner wall of the combustion chamber. The fluidized bed roasting furnace is fixed in a ring shape and connected to multiple combustion-supporting pipes and multiple gas burners. The gas burners and combustion-supporting pipes are all inclined. Each of the multiple gas burners corresponds to one of the multiple combustion-supporting pipes. The side of the combustion-supporting pipe closer to the center of the combustion chamber is lower, and the end of the gas burner located in the combustion chamber is close to the combustion-supporting pipe.

[0007] Preferably, multiple air caps are evenly arranged on the bottom surface of the combustion chamber, and an air distribution pipe is provided at the bottom of the fluidized bed roasting furnace. The multiple air caps are fixed and connected to the air distribution pipe. A fan is provided on one side of the fluidized bed roasting furnace, and a connecting pipe is fixed and connected to the air outlet of the fan. The end of the connecting pipe is fixed and connected to the air distribution pipe.

[0008] Preferably, a fixed frame is provided on one side of the fluidized bed roasting furnace, a feeding hopper is fixedly connected to the top of the fixed frame, a discharge pipe is fixedly connected to the bottom of the feeding hopper, a conveyor is fixedly connected to the middle of the fixed frame, the discharge pipe is fixedly connected to the top of the conveyor, a feeding pipe is fixedly connected to one end of the conveyor, and one end of the feeding pipe is fixedly connected to the bottom of the fluidized bed roasting furnace.

[0009] Preferably, a discharge pipe is fixed and connected to the bottom of the outer periphery of the fluidized bed roasting furnace, one end of the discharge pipe is fixed and connected to a cooling cylinder, one end of the cooling cylinder is fixed and connected to a conveying pipe, and a storage silo is provided on one side of the fluidized bed roasting furnace, the top of the storage silo being fixed and connected to the end of the conveying pipe.

[0010] Preferably, an exhaust pipe is fixed to and connected to the top of the outer periphery of the fluidized bed roasting furnace, and a waste heat boiler is provided on one side of the fluidized bed roasting furnace, with the end of the exhaust pipe fixed to and connected to the waste heat boiler.

[0011] Preferably, the outer periphery of the fluidized bed roasting furnace is provided with an annular pipe, and the plurality of gas burners are fixed and connected to the annular pipe, and a gas supply pipe is fixed and connected to the outer periphery of the annular pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are: In this invention, the combination of the gas burner, combustion-supporting pipe, and components enables precise supplemental heating of the middle or top position in the fluidized bed roasting furnace, avoiding excessive temperature gradients, ensuring that all waste desulfurizing agents are at the optimal reaction temperature, reducing incomplete reactions caused by insufficient temperature, and improving reaction efficiency. Attached Figure Description

[0013] Figure 1 This is a first-view structural diagram of the present invention; Figure 2 This is a second-view schematic diagram of the present invention; Figure 3 This is a partial cross-sectional schematic diagram of the present invention.

[0014] In the diagram: 1. Fluidized bed roasting furnace; 11. Combustion chamber; 12. Gas burner; 13. Combustion aid pipe; 14. Temperature measuring device; 15. Circular pipe; 16. Gas transmission pipe; 2. Ventilation cap; 21. Air distribution duct; 22. Fan; 23. Connecting pipe; 3. Fixed frame; 31. Feed hopper; 32. Discharge pipe; 33. Conveyor; 34. Feed pipe; 4. Discharge pipe; 41. Cooling cylinder; 42. Conveying pipe; 43. Storage silo; 5. Exhaust pipe; 51. Waste heat boiler. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Example 1: Please see Figure 1-3 This utility model provides a technical solution: an environmentally friendly roasting treatment device for waste desulfurizing agent, including a fluidized bed roasting furnace 1. The fluidized bed roasting furnace 1 has a combustion chamber 11 inside. The combustion chamber 11 is wider at the top and narrower at the bottom. Multiple temperature measuring devices 14 are fixedly installed on the inner wall of the combustion chamber 11. The wider top and narrower bottom setting of the combustion chamber 11 expands the combustion space, reduces local high temperature, and reduces the blowing out of solid particles. The temperature measuring devices 14 can detect the temperature inside the fluidized bed roasting furnace 1 in real time. The temperature measuring devices 14 are installed vertically from top to bottom, which can monitor the temperature at different positions inside the combustion chamber 11 in real time, making it convenient for staff to adjust the device according to the temperature.

[0017] The fluidized bed roasting furnace 1 is fixed in a ring shape and connected to multiple combustion-supporting pipes 13 and multiple gas burners 12. The gas burners 12 and combustion-supporting pipes 13 are all inclined. The multiple gas burners 12 correspond one-to-one with the multiple combustion-supporting pipes 13. The side of the combustion-supporting pipe 13 closer to the center of the combustion chamber 11 is lower, and the end of the gas burner 12 located in the combustion chamber 11 is close to the combustion-supporting pipe 13. The gas burners 12 accurately supplement the heat to the middle or top of the combustion chamber 11, avoiding excessive temperature gradients and ensuring that the waste desulfurizing agent in the middle or top is at the optimal reaction temperature. The setting of the combustion-supporting pipes 13 can deliver air to the vicinity of the gas burners 12, playing a role in combustion assistance. The downward inclination of the combustion-supporting pipes 13 can prevent material from escaping.

[0018] Example 2: Please see Figure 1-3 This is the second embodiment of the present invention. Based on the previous embodiment, multiple air caps 2 are evenly arranged on the bottom surface of the combustion chamber 11. An air distribution pipe 21 is arranged at the bottom of the fluidized bed roasting furnace 1. The multiple air caps 2 are fixed and connected to the air distribution pipe 21. A fan 22 is arranged on one side of the fluidized bed roasting furnace 1. A connecting pipe 23 is fixed and connected to the air outlet of the fan 22. The end of the connecting pipe 23 is fixed and connected to the air distribution pipe 21. When the fan 22 is turned on, the fan 22 delivers air to the air caps 2 through the connecting pipe 23 and the air distribution pipe 21. The air caps 2 then deliver the air to the combustion chamber 11. The sulfur content of the raw material itself and the air provided by the fan 22 undergo a complete combustion reaction.

[0019] A fixed frame 3 is provided on one side of the fluidized bed roasting furnace 1. A feed hopper 31 is fixedly connected to the top of the fixed frame 3. A discharge pipe 32 is fixedly connected to the bottom of the feed hopper 31. A conveyor 33 is fixedly connected to the middle of the fixed frame 3. The discharge pipe 32 is fixedly connected to the top of the conveyor 33. A feed pipe 34 is fixedly connected to one end of the conveyor 33. One end of the feed pipe 34 is fixedly connected to the bottom of the fluidized bed roasting furnace 1. Waste desulfurizing agent with a certain fineness is stored in the feed hopper 31. When the conveyor 33 is turned on, the waste desulfurizing agent enters the conveyor 33 through the discharge pipe 32. The conveyor 33 transports the waste desulfurizing agent from the feed pipe 34 into the combustion chamber 11.

[0020] A discharge pipe 4 is fixed and connected to the bottom of the outer periphery of the fluidized bed roasting furnace 1. One end of the discharge pipe 4 is fixed and connected to a cooling cylinder 41. One end of the cooling cylinder 41 is fixed and connected to a conveying pipe 42. A storage silo 43 is provided on one side of the fluidized bed roasting furnace 1. The top of the storage silo 43 is fixed and connected to the end of the conveying pipe 42. The cooling cylinder 41 is a water-cooled cooling structure that uses water as the cooling medium. Heat exchange is carried out through the cylinder wall and the built-in cooling device. The material after boiling enters the cooling cylinder 41 through the discharge pipe 4 for cooling treatment. The waste desulfurizing agent roasting material after cooling treatment enters the conveying pipe 42 through the cooling cylinder 41 and is transported to the storage silo 43 by the conveying pipe 42. The storage silo 43 is then transported to the next process flow.

[0021] An exhaust pipe 5 is fixed and connected to the top of the outer periphery of the fluidized bed roasting furnace 1. A waste heat boiler 51 is installed on one side of the fluidized bed roasting furnace 1. The end of the exhaust pipe 5 is fixed and connected to the waste heat boiler 51. The sulfur-containing waste gas enters the waste heat boiler 51 through the exhaust pipe 5 for heat exchange. The by-product steam is used for drying the desulfurizing agent. The sulfur-containing waste gas is recycled as by-product concentrated sulfuric acid through the subsequent environmental protection treatment section.

[0022] An annular pipe 15 is provided around the periphery of the fluidized bed roasting furnace 1. Multiple gas burners 12 are fixed and connected to the annular pipe 15. A gas supply pipe 16 is fixed and connected to the periphery of the annular pipe 15. The end of the gas supply pipe 16 is connected to a gas storage tank. An electronic valve that can control the flow rate is installed on the gas supply pipe 16. The electronic valve is existing technology and will not be described in detail here. The flow rate of the gas can be controlled by the electronic valve. The annular pipe 15 helps to connect with the gas burners 12.

[0023] When using this utility model, first check the air distribution of the blower 22 and the air cap 2. After confirming that everything is correct, lay the furnace bottom of the fluidized bed roasting furnace 1. The raw material is the roasted waste desulfurizing agent, with a thickness controlled at 60cm and a particle size controlled at 80 mesh ± 10 mesh. Initially, wood and charcoal are used for ignition and heating. When the temperature reaches above 500℃, start the blower 22 (the initial judgment of air volume control is: to make the material flow first, and later to make the material completely boil). Start the waste heat boiler 51 and the cooling cylinder 41. The waste desulfurizing agent of a certain fineness is pre-treated and stored in the feed hopper 31. Open the conveyor 33, and the waste desulfurizing agent enters the conveyor 33 through the feed pipe 32. The conveyor 33 transports the waste desulfurizing agent from the feed pipe 34 to the combustion chamber 11. At the same time as opening the conveyor 33, turn on the blower 22. The blower 22 is connected to the... Pipe 23 and air distribution pipe 21 deliver air to air cap 2, which then delivers it to combustion chamber 11. The sulfur content of the raw material and the air supplied by fan 22 combine for complete combustion. Gas supply pipe 16 delivers fuel gas to gas burner 12 via ring pipe 15. Gas burner 12 ignites the fuel gas, and the flame emitted by gas burner 12 precisely heats the middle or top of combustion chamber 11, avoiding excessive temperature gradients and ensuring that the waste desulfurizing agent in the middle or top is at the optimal reaction temperature. The combustion-supporting pipe 13 delivers air to the vicinity of gas burner 12, thus aiding combustion. The downward inclination of the combustion-supporting pipe 13 prevents material from escaping. During the reaction, the temperature measuring device 14 can detect the temperature inside the combustion chamber 11 to ensure the temperature is within the chamber. Operators can adjust the airflow of the air cap 2 and the flame intensity of the gas burner 12 in real time based on the temperature. After boiling, the material enters the cooling cylinder 41 through the discharge pipe 4 for cooling. The cooled waste desulfurizing agent roasting material then enters the conveying pipe 42 through the cooling cylinder 41 and is transported to the storage silo 43. The storage silo 43 then transports the sulfur-containing waste gas to the next process step. The waste gas enters the waste heat boiler 51 through the exhaust pipe 5 for heat exchange. The by-product steam is used for drying the desulfurizing agent, and the sulfur-containing waste gas is recycled as concentrated sulfuric acid in the subsequent environmental protection treatment section and sold as a product. This device achieves the purpose of environmentally friendly treatment of waste desulfurizing agent by roasting. In this utility model, the cooperation of the gas burner 12, the combustion tube 13 and the components can accurately supplement the heat in the middle or top position of the fluidized bed roasting furnace 1, avoid excessive temperature gradient, ensure that all waste desulfurizing agents are at the optimal reaction temperature, reduce incomplete reaction caused by insufficient temperature, and improve reaction efficiency.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An environmentally friendly roasting treatment device for waste desulfurizing agent, comprising a fluidized bed roasting furnace (1), characterized in that: The fluidized bed roasting furnace (1) has a combustion chamber (11) inside. The combustion chamber (11) is wider at the top and narrower at the bottom. Multiple temperature measuring devices (14) are fixedly installed on the inner wall of the combustion chamber (11). The fluidized bed roasting furnace (1) is fixed in a ring and connected to multiple combustion-supporting pipes (13) and multiple gas burners (12). The gas burners (12) and combustion-supporting pipes (13) are inclined. The multiple gas burners (12) correspond one-to-one with the multiple combustion-supporting pipes (13). The side of the combustion-supporting pipe (13) closer to the center of the combustion chamber (11) is lower. The end of the gas burner (12) located in the combustion chamber (11) is close to the combustion-supporting pipe (13).

2. The environmentally friendly roasting treatment equipment for waste desulfurizing agent according to claim 1, characterized in that: Multiple air caps (2) are evenly arranged on the bottom surface of the combustion chamber (11). An air distribution pipe (21) is provided at the bottom of the fluidized bed roasting furnace (1). Multiple air caps (2) are fixed and connected to the air distribution pipe (21). A fan (22) is provided on one side of the fluidized bed roasting furnace (1). A connecting pipe (23) is fixed and connected to the air outlet of the fan (22). The end of the connecting pipe (23) is fixed and connected to the air distribution pipe (21).

3. The environmentally friendly roasting treatment equipment for waste desulfurizing agent according to claim 1, characterized in that: A fixed frame (3) is provided on one side of the fluidized bed roasting furnace (1). A feeding hopper (31) is fixedly connected to the top of the fixed frame (3). A feeding pipe (32) is fixedly connected to the bottom of the feeding hopper (31). A conveyor (33) is fixedly connected to the middle of the fixed frame (3). The feeding pipe (32) is fixedly connected to the top of the conveyor (33). A feeding pipe (34) is fixedly connected to one end of the conveyor (33). One end of the feeding pipe (34) is fixedly connected to the bottom of the fluidized bed roasting furnace (1).

4. The environmentally friendly roasting treatment equipment for waste desulfurizing agent according to claim 1, characterized in that: The bottom of the fluidized bed roasting furnace (1) is fixed and connected to a discharge pipe (4). One end of the discharge pipe (4) is fixed and connected to a cooling cylinder (41). One end of the cooling cylinder (41) is fixed and connected to a conveying pipe (42). A storage bin (43) is provided on one side of the fluidized bed roasting furnace (1). The top of the storage bin (43) is fixed and connected to the end of the conveying pipe (42).

5. The environmentally friendly roasting treatment equipment for waste desulfurizing agent according to claim 1, characterized in that: The top of the outer periphery of the fluidized bed roasting furnace (1) is fixed and connected to an exhaust pipe (5). A waste heat boiler (51) is provided on one side of the fluidized bed roasting furnace (1). The end of the exhaust pipe (5) is fixed and connected to the waste heat boiler (51).

6. The environmentally friendly roasting treatment equipment for waste desulfurizing agent according to claim 1, characterized in that: The outer periphery of the boiling roasting furnace (1) is provided with an annular pipe (15), and multiple gas burners (12) are fixed and connected to the annular pipe (15). The outer periphery of the annular pipe (15) is fixed and connected to a gas supply pipe (16).

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