Low-temperature catalytic reaction device

Abstract

The utility model discloses a low-temperature catalytic reaction device, which belongs to the technical field of chemical engineering and comprises a bottom plate, the left side of the top of the bottom plate is fixedly connected with a reaction box, the left side of the top of the reaction box is communicated with an air inlet pipe, the left side of the reaction box is fixedly provided with a motor, and the output end of the motor is fixedly connected with a rotating rod. Liquid nitrogen in the inner cavity of the liquid nitrogen tank is sucked in through the liquid suction pump under the cooperation of the first pipeline, the liquid nitrogen is conveyed to the second pipeline through the connecting pipe, the liquid nitrogen is atomized through the atomizing nozzle and then sprayed out, and therefore the temperature of the inner cavity of the reaction box is reduced, meanwhile, the rotating rod is driven by the motor to rotate, and the fan blades are driven by the rotating rod to rotate; air flow is generated through rotation of the fan blades, the air flow speed of the inner cavity of the bottom plate is increased, atomized liquid nitrogen is rapidly diffused to all corners of the inner cavity of the reaction box, then flue gas is conveyed to the inner cavity of the reaction box through the gas inlet pipe, and due to the fact that the temperature of the inner cavity of the reaction box is low, the purpose of low-temperature denitration is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of chemical engineering, and in particular relates to a low-temperature catalytic reaction device. Background Art

[0002] Chemical engineering is the abbreviation of "chemical technology", "chemical industry", "chemical engineering", etc. Any technology that uses chemical methods to change the composition and structure of substances or synthesize new substances belongs to chemical production technology, that is, chemical technology. The resulting products are called chemicals or chemical products. The flue gas discharged in industrial production contains a large amount of NOX, so the discharged flue gas needs to be denitrified.

[0003] In the process of operation, the existing reaction device atomizes liquid nitrogen through a spray device and then sprays it out, thereby reducing the temperature of the reaction box and achieving the purpose of low-temperature catalysis. Since the position of the atomizing nozzle is fixed, the spray range cannot be changed, so that the sprayed liquid nitrogen is not in sufficient contact with the flue gas, which greatly reduces the denitrification effect. Secondly, a small amount of harmful substances will remain in the flue gas after denitrification, which is very likely to cause environmental pollution until it is discharged. Therefore, we provide a low-temperature catalytic reaction device. Utility Model Content

[0004] The purpose of the utility model is to provide a low-temperature catalytic reaction device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a low-temperature catalytic reaction device, comprising a bottom plate, a reaction box is fixedly connected to the left side of the top of the bottom plate, an air inlet pipe is connected to the left side of the top of the reaction box, a motor is fixedly installed on the left side of the reaction box, a rotating rod is fixedly connected to the output end of the motor, a fan blade is fixedly connected to the surface of the rotating rod, a bearing plate is fixedly connected to the left side of the back of the bottom plate, a limiting column is fixedly connected to the top of the bearing plate, a liquid nitrogen tank is placed in the inner cavity of the limiting column, a conversion joint is provided on the top of the liquid nitrogen tank, a liquid suction pump is fixedly installed on the top of the reaction box, an input end of the liquid suction pump is connected to a No. 1 pipeline, one end of the No. 1 pipeline is connected to the conversion joint on the top of the liquid nitrogen tank, the output end of the liquid suction pump is connected to a No. 2 pipeline through a connecting pipe, a group of atomizing nozzles are arranged at the bottom of the No. 2 pipeline, a No. 3 pipeline is connected to the right side of the top of the reaction box, one end of the No. 3 pipeline is connected to an adsorption box, a group of activated carbon adsorption mesh plates are arranged in the inner cavity of the adsorption box, and an air outlet pipe is connected to the top of the adsorption box.

[0006] By adopting the above scheme, the liquid nitrogen in the inner cavity of the liquid nitrogen tank is sucked in by the suction pump with the cooperation of pipeline No. 1, and the liquid nitrogen is transported to pipeline No. 2 through the connecting pipe, and the liquid nitrogen is atomized and sprayed out through the atomizing nozzle, thereby reducing the temperature of the inner cavity of the reaction box. At the same time, the rotating rod is driven to rotate by the motor, and the fan blades are driven to rotate by the rotating rod. The rotation of the fan blades generates airflow, which accelerates the air flow rate in the inner cavity of the bottom plate, so that the atomized liquid nitrogen quickly diffuses to all corners of the inner cavity of the reaction box, and then the flue gas is transported to the inner cavity of the reaction box through the air inlet pipe. Since the temperature of the inner cavity of the reaction box is relatively low, the purpose of low-temperature denitrification is achieved. The flue gas after denitrification is transported to the inner cavity of the adsorption box through pipeline No. 3. Through the setting of multiple activated carbon adsorption mesh plates, harmful substances in the flue gas are multiply adsorbed to achieve the purpose of purifying the flue gas, and prevent the flue gas containing harmful substances from being directly discharged into the air and polluting the environment.

[0007] As a preferred embodiment of the low-temperature catalytic reaction device, both sides of the bottom of the liquid suction pump are fixedly connected to limit frames, and the bottom of the limit frame is fixedly connected to the top of the reaction box.

[0008] By adopting the above scheme and setting the limit frame, the vibration amplitude of the suction pump during operation is reduced, thereby achieving the purpose of vibration reduction and noise reduction.

[0009] As a preferred embodiment of a low-temperature catalytic reaction device, the front and rear ends of both sides of the bottom of the activated carbon adsorption mesh plate are fixedly connected with threaded blocks, and the threaded blocks and the adsorption box are fixedly connected by No. 2 bolts.

[0010] By adopting the above scheme, the activated carbon adsorption mesh plate can be quickly disassembled and assembled at a designated position through the setting of the No. 2 bolt, which greatly improves the efficiency of disassembly and assembly.

[0011] As a preferred embodiment of a low-temperature catalytic reaction device, a temperature sensor is fixedly connected to the right side of the front end of the top of the reaction box, the detection end of the temperature sensor is located at the top of the inner cavity of the reaction box and is fixedly connected to a detection probe, the front end of the top of the reaction box is fixedly connected to a temperature display screen, and the temperature sensor and the temperature display screen are electrically connected through a wire.

[0012] By adopting the above scheme, the temperature of the inner cavity of the reaction box is detected in real time through the cooperation of the temperature sensor and the detection probe, and the detection data is transmitted to the temperature display screen, so that the user can grasp the temperature of the inner cavity of the reaction box and prevent the occurrence of high temperature that affects the reaction rate.

[0013] As a preferred embodiment of the low-temperature catalytic reaction device, anti-skid pads are bonded around the bottom of the base plate, and the number of anti-skid pads is four.

[0014] By adopting the above solution, the anti-skid function of the device is increased by providing the anti-skid pad, and the stability of the device is greatly improved.

[0015] As a preferred embodiment of the low-temperature catalytic reaction device, the surface of the adsorption box is movably connected to a box door via a hinge, and a handle is fixedly connected to one side of the surface of the box door.

[0016] By adopting the above scheme, the box door is opened by the handle, which facilitates regular cleaning of the activated carbon adsorption screen plate to prevent the activated carbon adsorption screen plate from being blocked.

[0017] As a preferred embodiment of a low-temperature catalytic reaction device, a sealing shell is provided on the surface of the reaction box, and the sealing shell is fixedly connected to the reaction box by a No. 1 bolt.

[0018] With the above solution, since the sealing shell and the reaction box are fixedly connected by No. 1 bolts, it can be seen that the sealing shell can be quickly disassembled and assembled on the surface of the reaction box, and the inner cavity of the reaction box can be cleaned using external tools, which greatly improves the cleanliness of the inner cavity of the reaction box.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. The utility model sucks the liquid nitrogen in the inner cavity of the liquid nitrogen tank through the liquid suction pump with the cooperation of the No. 1 pipeline, and transports the liquid nitrogen to the No. 2 pipeline through the connecting pipe, and sprays the liquid nitrogen after atomization through the atomizing nozzle, so as to reduce the temperature of the inner cavity of the reaction box, and at the same time drives the rotating rod to rotate through the motor, and drives the fan blades to rotate through the rotating rod, and generates airflow through the rotation of the fan blades, which accelerates the air flow rate in the inner cavity of the bottom plate, so that the atomized liquid nitrogen quickly diffuses to all corners of the inner cavity of the reaction box, and then the flue gas is transported to the inner cavity of the reaction box through the air inlet pipe. Because the temperature of the inner cavity of the reaction box is relatively low, the purpose of low-temperature denitrification is achieved. The flue gas after denitrification is transported to the inner cavity of the adsorption box through the No. 3 pipeline, and multiple activated carbon adsorption mesh plates are set to perform multiple adsorptions on harmful substances in the flue gas, so as to achieve the purpose of purifying the flue gas and prevent the flue gas containing harmful substances from being directly discharged into the air and polluting the environment.

[0021] 2. The utility model detects the temperature of the inner cavity of the reaction box in real time through the cooperation of the temperature sensor and the detection probe, and transmits the detected data to the temperature display screen, so that the user can grasp the temperature of the inner cavity of the reaction box and prevent the occurrence of high temperature that affects the reaction rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the utility model;

[0023] Figure 2 It is a cross-sectional view of the reaction box of the utility model;

[0024] Figure 3 It is a cross-sectional view of the adsorption box of the utility model;

[0025] Figure 4 It is an enlarged view of point A of the present utility model.

[0026] In the figure: 1. bottom plate; 2. reaction box; 3. motor; 4. rotating rod; 5. fan blade; 6. bearing plate; 7. limiting column; 8. liquid nitrogen tank; 9. suction pump; 10. pipeline No. 1; 11. pipeline No. 2; 12. atomizing nozzle; 13. temperature sensor; 14. detection probe; 15. temperature display screen; 16. pipeline No. 3; 17. adsorption box; 18. activated carbon adsorption mesh; 19. threaded block; 20. bolt No. 2. DETAILED DESCRIPTION

[0027] See also Figure 1-4 A low temperature catalytic reaction device comprises a bottom plate 1, a reaction box 2 is fixedly connected to the left side of the top of the bottom plate 1, Figure 2 As shown, a temperature sensor 13 is fixedly connected to the right side of the front end of the top of the reaction box 2, and a detection end of the temperature sensor 13 is located at the top of the inner cavity of the reaction box 2 and is fixedly connected to a detection probe 14, and a temperature display screen 15 is fixedly connected to the front end of the top of the reaction box 2. The temperature sensor 13 and the temperature display screen 15 are electrically connected through a wire. The temperature of the inner cavity of the reaction box 2 is detected in real time through the cooperation of the temperature sensor 13 and the detection probe 14, and the detected data is transmitted to the temperature display screen 15, so that the user can grasp the temperature of the inner cavity of the reaction box 2 to prevent the occurrence of high temperature and the influence of the reaction rate. The left side of the top of the reaction box 2 is connected with an air intake pipe, and a motor 3 is fixedly installed on the left side of the reaction box 2. The output end of the motor 3 is fixedly connected to a rotating rod 4, and the rotating rod 4 The surface of the reaction box 2 is fixedly connected with a fan blade 5, the left side of the back side of the bottom plate 1 is fixedly connected with a carrying plate 6, the top of the carrying plate 6 is fixedly connected with a limiting column 7, the inner cavity of the limiting column 7 is provided with a liquid nitrogen tank 8, and the top of the liquid nitrogen tank 8 is provided with a conversion joint, and the top of the reaction box 2 is fixedly installed with a suction pump 9, the input end of the suction pump 9 is connected with a No. 1 pipe 10, one end of the No. 1 pipe 10 is connected with the conversion joint on the top of the liquid nitrogen tank 8, the output end of the suction pump 9 is connected with a No. 2 pipe 11 through a connecting pipe, and a group of atomizing nozzles 12 are arranged at the bottom of the No. 2 pipe 11, the right side of the top of the reaction box 2 is connected with a No. 3 pipe 16, one end of the No. 3 pipe 16 is connected with an adsorption box 17, the inner cavity of the adsorption box 17 is provided with a group of activated carbon adsorption mesh plates 18, and the top of the adsorption box 17 is connected with an outlet pipe, see Figure 1As shown, a sealing shell is provided on the surface of the reaction box 2, and the sealing shell is fixedly connected to the reaction box 2 by a No. 1 bolt. Since the sealing shell and the reaction box 2 are fixedly connected by a No. 1 bolt, it can be known that the sealing shell can be quickly disassembled and assembled on the surface of the reaction box 2, and the inner cavity of the reaction box 2 can be cleaned by using an external tool, which greatly improves the cleanliness of the inner cavity of the reaction box 2. The liquid nitrogen in the inner cavity of the liquid nitrogen tank 8 is sucked by the liquid suction pump 9 in cooperation with the No. 1 pipeline 10, and the liquid nitrogen is transported to the No. 2 pipeline 11 through the connecting pipe, and the liquid nitrogen is atomized and sprayed out by the atomizing nozzle 12, thereby reducing the temperature of the inner cavity of the reaction box 2, and at the same time, the motor 3 drives the rotating rod 4 to The fan blades 5 are driven to rotate by the rotating rod 4, and the rotation of the fan blades 5 generates airflow, which accelerates the air flow rate in the inner cavity of the bottom plate 1, so that the atomized liquid nitrogen quickly diffuses to all corners of the inner cavity of the reaction box 2, and then the flue gas is transported to the inner cavity of the reaction box 2 through the air inlet pipe. Since the temperature of the inner cavity of the reaction box 2 is relatively low, the purpose of low-temperature denitrification is achieved. The flue gas after denitrification is transported to the inner cavity of the adsorption box 17 through the No. 3 pipeline 16. Through the setting of multiple activated carbon adsorption mesh plates 18, multiple adsorptions are performed on harmful substances in the flue gas, so as to achieve the purpose of purifying the flue gas and prevent the flue gas containing harmful substances from being directly discharged into the air to pollute the environment.

[0028] See Figure 1 As shown, both sides of the bottom of the suction pump 9 are fixedly connected to the limiting frame, and the bottom of the limiting frame is fixedly connected to the top of the reaction box 2. By setting the limiting frame, the amplitude of vibration of the suction pump 9 during operation is reduced to achieve the purpose of vibration reduction and noise reduction. Figure 4 As shown, the front and rear ends of both sides of the bottom of the activated carbon adsorption mesh plate 18 are fixedly connected with threaded blocks 19, and the threaded blocks 19 and the adsorption box 17 are fixedly connected by No. 2 bolts 20. By setting the No. 2 bolts 20, the activated carbon adsorption mesh plate 18 can be quickly disassembled and assembled at a specified position, which greatly improves the efficiency of disassembly and assembly. Figure 1 As shown, the bottom of the bottom plate 1 is bonded with anti-skid pads around the periphery, and the number of anti-skid pads is four. The anti-skid function of the device is increased by the provision of the anti-skid pads, and the stability of the device is greatly improved. Figure 1 As shown, the surface of the adsorption box 17 is movably connected to a box door via a hinge, and a handle is fixedly connected to one side of the box door surface. The box door is opened by the handle to facilitate regular cleaning of the activated carbon adsorption mesh plate 18 to prevent the activated carbon adsorption mesh plate 18 from being blocked.

[0029] When in use, firstly, the liquid nitrogen in the inner cavity of the liquid nitrogen tank 8 is sucked by the liquid suction pump 9 in cooperation with the No. 1 pipeline 10, and the liquid nitrogen is transported to the No. 2 pipeline 11 through the connecting pipe, and the liquid nitrogen is atomized and sprayed out through the atomizing nozzle 12, so as to reduce the temperature of the inner cavity of the reaction box 2. The temperature of the inner cavity of the reaction box 2 is detected in real time through the cooperation of the temperature sensor 13 and the detection probe 14, and the detected data is transmitted to the temperature display screen 15, so that the user can grasp the temperature of the inner cavity of the reaction box 2 to prevent the occurrence of high temperature and the reaction rate. At the same time, the motor 3 drives the rotating rod 4 to rotate, and the rotating rod 4 The fan blades 5 are driven to rotate, and airflow is generated by the rotation of the fan blades 5, which accelerates the air flow rate in the inner cavity of the bottom plate 1, so that the atomized liquid nitrogen quickly diffuses to all corners of the inner cavity of the reaction box 2, and then the flue gas is transported to the inner cavity of the reaction box 2 through the air inlet pipe. Since the temperature of the inner cavity of the reaction box 2 is relatively low, the purpose of low-temperature denitrification is achieved. The flue gas after denitrification is transported to the inner cavity of the adsorption box 17 through the No. 3 pipeline 16. Through the setting of multiple activated carbon adsorption mesh plates 18, multiple adsorptions are performed on harmful substances in the flue gas, thereby achieving the purpose of purifying the flue gas and preventing the flue gas containing harmful substances from being directly discharged into the air to pollute the environment.

Claims

1. A low temperature catalytic reaction device, characterized in that: The invention comprises a bottom plate (1), a reaction box (2) is fixedly connected to the left side of the top of the bottom plate (1), an air inlet pipe is connected to the left side of the top of the reaction box (2), a motor (3) is fixedly installed on the left side of the reaction box (2), a rotating rod (4) is fixedly connected to the output end of the motor (3), a fan blade (5) is fixedly connected to the surface of the rotating rod (4), a bearing plate (6) is fixedly connected to the left side of the back side of the bottom plate (1), a limiting column (7) is fixedly connected to the top of the bearing plate (6), a liquid nitrogen tank (8) is placed in the inner cavity of the limiting column (7), a switching joint is provided on the top of the liquid nitrogen tank (8), and the top of the reaction box (2) is fixedly connected to the left side of the back side of the bottom plate (1). A liquid suction pump (9) is installed, the input end of the liquid suction pump (9) is connected to a No. 1 pipeline (10), one end of the No. 1 pipeline (10) is connected to a conversion joint at the top of the liquid nitrogen tank (8), the output end of the liquid suction pump (9) is connected to a No. 2 pipeline (11) through a connecting pipe, a group of atomizing nozzles (12) are arranged at the bottom of the No. 2 pipeline (11), the right side of the top of the reaction box (2) is connected to a No. 3 pipeline (16), one end of the No. 3 pipeline (16) is connected to an adsorption box (17), the inner cavity of the adsorption box (17) is provided with a group of activated carbon adsorption mesh plates (18), and the top of the adsorption box (17) is connected to an air outlet pipe.

2. A low temperature catalytic reaction device according to claim 1, characterized in that: Both sides of the bottom of the liquid suction pump (9) are fixedly connected to the limiting frames, and the bottom of the limiting frames is fixedly connected to the top of the reaction box (2).

3. A low-temperature catalytic reaction device according to claim 1, characterized in that: The front and rear ends of both sides of the bottom of the activated carbon adsorption mesh plate (18) are fixedly connected with threaded blocks (19), and the threaded blocks (19) and the adsorption box (17) are fixedly connected via No. 2 bolts (20).

4. A low temperature catalytic reaction device according to claim 1, characterized in that: A temperature sensor (13) is fixedly connected to the right side of the front end of the top of the reaction box (2); a detection end of the temperature sensor (13) is located at the top of the inner cavity of the reaction box (2) and is fixedly connected to a detection probe (14); a temperature display screen (15) is fixedly connected to the front end of the top of the reaction box (2); and the temperature sensor (13) and the temperature display screen (15) are electrically connected via a wire.

5. A low temperature catalytic reaction device according to claim 1, characterized in that: Anti-skid pads are bonded to four sides of the bottom of the base plate (1).

6. A low-temperature catalytic reaction device according to claim 1, characterized in that: The surface of the adsorption box (17) is movably connected to a box door via a hinge, and a handle is fixedly connected to one side of the surface of the box door.

7. A low temperature catalytic reaction device according to claim 1, characterized in that: A sealing shell is provided on the surface of the reaction box (2), and the sealing shell is fixedly connected to the reaction box (2) via No. 1 bolts.

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