Methanol-to-gas catalytic oxidation heat supply equipment with inlet air filtering structure

Abstract

The invention discloses methanol-to-gas catalytic oxidation heat supply equipment with an inlet air filtering structure, and relates to the technical field of methanol-to-gas catalytic oxidation heat supply devices. The methanol-to-gas catalytic oxidation heat supply equipment comprises a heat supply box and an arc-shaped filter screen; the cleaning mechanism comprises two hollow shafts which are symmetrically and fixedly connected to the inner wall of the heat supply box, the ends, close to each other, of the two hollow shafts are jointly and fixedly connected with a cleaning roller, the other ends of the two hollow shafts both penetrate through the side wall of the heat supply box, and the side wall of the cleaning roller is fixedly connected with a plurality of bristles. A flowing cavity is formed in the cleaning roller, the two ends of the flowing cavity communicate with the two hollow shafts correspondingly, and a plurality of dust suction holes are formed in the inner wall of the flowing cavity. When the surface of the arc-shaped filter screen is covered with a large amount of dust, the arc-shaped filter screen can be automatically and rapidly cleaned, the arc-shaped filter screen does not need to be disassembled and cleaned, use is more convenient, cleaning can be automatically started according to the blocking degree of the arc-shaped filter screen, and more automation is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of methanol gasification catalytic oxidation heating equipment, and in particular to methanol gasification catalytic oxidation heating equipment with an air inlet filtering structure. Background Art

[0002] Methanol, also known as "wood alcohol" or "wood spirit", is a colorless, volatile liquid with an alcoholic odor. It is used to manufacture formaldehyde and pesticides, and is used as an extractant for organic matter and a denaturant for alcohol. It is usually produced by the reaction of carbon monoxide and hydrogen.

[0003] At present, when methanol is catalytically oxidized to produce gas, it usually needs to be heated. The common heating method is to inject hot air into the reaction vessel. The existing heating equipment draws air into the box, heats it and then injects it into the reaction vessel. However, the air contains dust, so a filter is set in the box to filter the dust. However, after long-term use, the surface of the filter will be covered with a large amount of dust. The filter is usually removed from the box for cleaning and replacement. The process of disassembly and reinstallation is relatively troublesome. If there is no spare filter when cleaning the filter, the heating equipment will be unusable.

[0004] Based on this, we propose a methanol gasification catalytic oxidation heating equipment with an air inlet filtration structure. Summary of the Invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a methanol gasification catalytic oxidation heating equipment with an air inlet filtering structure.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A methanol gasification catalytic oxidation heating device with an air inlet filtering structure, comprising a heating box and an arc-shaped filter screen; A cleaning mechanism, the cleaning mechanism includes two hollow shafts symmetrically fixedly connected to the inner wall of the heating box, one end of the two hollow shafts close to each other is commonly fixedly connected to a cleaning roller, the other ends of the two hollow shafts are both arranged through the side wall of the heating box, a plurality of bristles are fixedly connected to the side wall of the cleaning roller, a flow cavity is opened in the cleaning roller, the two ends of the flow cavity are respectively connected to the two hollow shafts, and a plurality of dust suction holes are opened on the inner wall of the flow cavity; The driving mechanism comprises an L-shaped frame fixedly connected to the side wall of the heating box, the side wall of the L-shaped frame is rotatably connected to a rotating shaft, the side wall of the rotating shaft located in the hollow shaft is fixedly connected to a plurality of first fan blades, the side wall of the heating box is rotatably connected to a first rod, the side wall of the first rod is fixedly connected to a first driving wheel, one of the side walls of the hollow shaft is fixedly connected to a first driven wheel, the first driving wheel and the first driven wheel are connected by a synchronous belt, the lower end of the heating box is fixedly connected to a motor through a bracket, the output end of the motor is fixedly connected to the first rod, the side wall of the L-shaped frame is rotatably connected to a hollow rotating rod, the side wall of the first rod is fixedly connected to a first gear, the side wall of the hollow rotating rod is fixedly connected to a second gear, and the first gear is meshed with the second gear.

[0007] Preferably, two grooves are symmetrically provided on the inner wall of the heating box, and the inner walls of the two grooves are sealed and slidably connected with a conductive slider, and the side walls of the two conductive sliders close to each other are fixedly connected with an arc filter, and the inner walls of the two grooves are fixedly connected with a sliding rod, and the side walls of the sliding rod are slidably connected to the conductive slider, and a first spring is fixedly connected between the top of the groove and the conductive slider.

[0008] Preferably, a starting mechanism is installed on the rotating shaft, and the starting mechanism includes two vertical slots symmetrically opened on the side wall of the rotating shaft, and the inner walls of the two vertical slots are slidably connected with magnetic rods, and the inner wall of the hollow rotating rod is provided with multiple limiting slots cooperating with the magnetic rods, and a second spring is fixedly connected between the magnetic rod and the inner wall of the vertical slot.

[0009] Preferably, the starting mechanism also includes a first electromagnet fixedly connected to the inner wall of the vertical groove, a conductive plate is embedded in the inner wall of one of the grooves, a cavity is opened in the side wall of the heating box, a conductive block is fixedly connected to the bottom of the cavity, and a conductive slide is slidably connected to the inner wall of the cavity, and the first electromagnet, the conductive plate, the conductive slider, the conductive block, the conductive slide and the external power supply are electrically connected through wires.

[0010] Preferably, an air intake mechanism is installed on the heating box, and the air intake mechanism includes an air inlet opened at the lower end of the heating box, the inner wall of the air inlet is fixedly connected to a horizontal plate, the lower end of the horizontal plate is rotatably connected to a second rod, and the side wall of the second rod is fixedly connected to a plurality of second fan blades, one end of the first rod extends to the interior of the heating box and is fixedly connected to a first bevel gear, the upper end of the second rod passes through the upper end of the horizontal plate and is fixedly connected to the second bevel gear, and the first bevel gear is meshed with the second bevel gear.

[0011] Preferably, a heating mechanism is installed on the heating box, and the heating mechanism includes an electric heater fixedly connected to the top of the heating box. An exhaust outlet is provided on the side wall of the heating box, and a vertical plate is fixedly connected to the inner wall of the exhaust outlet. The side wall of the vertical plate is rotatably connected to a third rod, and a plurality of third fan blades are fixedly connected to the side wall of the third rod. The inner wall of the exhaust outlet is sealed and fixedly connected to a heating pipe.

[0012] Preferably, the heating mechanism also includes a second driving wheel fixedly connected to one of the side walls of the hollow shaft, one end of the third rod passes through the side wall of the heating box and is fixedly connected to the second driven wheel, the side wall of the second driven wheel is provided with multiple sliding grooves, and the inner walls of multiple sliding grooves are slidably connected to vertical rods, the vertical rods are made of magnetic material, one end of the vertical rod is fixedly connected to an arc plate, a third spring is fixedly connected between the vertical rod and the inner wall of the sliding groove, and the multiple arc plates are connected to the second driving wheel through a synchronous belt.

[0013] Preferably, a second electromagnet is fixedly connected to the inner wall of the chute, and the conductive slider, the conductive plate, the second electromagnet and the external power supply are electrically connected via a wire.

[0014] Preferably, a temperature sensor is installed on the top of the heating box, a magnetic spring is fixedly connected between the top of the cavity and the conductive slide, and the temperature sensor, magnetic spring and the second electromagnet are connected through a PLC control circuit.

[0015] Preferably, a tensioning mechanism is installed on the heating box, and the tensioning mechanism includes a rectangular groove opened on the side wall of the heating box, the inner wall of the rectangular groove is slidably connected to a rectangular block, the side wall of the rectangular block is rotatably connected to a tensioning wheel through a pin shaft, the inner wall of the rectangular groove is fixedly connected to a limit rod, the side wall of the limit rod is slidably connected to the rectangular block, the side wall of the limit rod is sleeved with a fourth spring, the two ends of the fourth spring are respectively fixedly connected to the inner wall of the rectangular groove and the side wall of the rectangular block, and the multiple arc plates, the second driving wheel and the tensioning wheel are connected by a synchronous belt.

[0016] The present invention has the following beneficial effects: 1. By setting up a cleaning mechanism, a driving mechanism and a starting mechanism, when the surface of the curved filter is covered with a lot of dust, it will automatically clean it quickly without having to disassemble it for cleaning, making it more convenient to use. It can also automatically start cleaning according to the degree of blockage of the curved filter, making it more automated. 2. By setting up an air inlet mechanism and a heating mechanism and starting the motor, external air can be drawn into the heating box for heating, and then discharged into the reactor, thereby providing heat for the gasification oxidation of methanol; 3. By setting up a second electromagnet, when the arc filter is seriously clogged, the airflow will become smaller, and the hot air pumped into the reactor will be reduced, resulting in insufficient heat supply. Therefore, when the arc filter is seriously clogged and needs to be cleaned, the second electromagnet will pass a positive current, thereby generating a magnetic attraction, attracting multiple vertical rods to move toward the center of the second driven wheel, and then driving multiple curved plates to move toward the center of the second driven wheel. This is equivalent to the diameter of the second driven wheel being reduced, and the speed of the third rod will be accelerated, and the speed of the multiple third blades will be accelerated, which can accelerate the discharge speed of the hot air. Therefore, when the arc filter is seriously clogged, sufficient hot air supply can still be maintained to avoid insufficient heat supply. 4. By setting a temperature sensor, since the boiling point of methanol is 64.7 degrees Celsius, and methanol itself is flammable and explosive, the temperature of the hot gas needs to be controlled during heating. When the temperature in the heating box exceeds degrees Celsius, the temperature sensor will receive a signal and control the electric heater to cut off the power through the PLC control circuit, stop heating the temperature in the heating box, and thus facilitate the temperature reduction in the heating box. At this time, the temperature sensor will pass a reverse current to the second electromagnet through the PLC control circuit, and the second electromagnet will generate a magnetic repulsion force, pushing the vertical rod to slide away from the center of the second driven wheel, driving the multiple arc plates away from the second driven wheel, which is equivalent to increasing the diameter of the second driven wheel, and then the speed of the second driven wheel will decrease, so that the speed of the multiple third blades will decrease, and the heating speed will be reduced at this time, thereby avoiding excessive heating, making the temperature inside the reactor too high, causing methanol to explode, and then causing a safety accident; 5. When the arc filter is seriously clogged and needs to be cleaned, and the heating temperature is too high, the temperature sensor will energize the magnetic spring through the PLC control circuit, so that the magnetic spring is energized, driving the conductive slide to move upward and break away from the contact with the conductive block. At this time, the second electromagnet cannot pass forward current, but can only pass reverse current, thereby reducing the heat supply of the reactor. Because compared with safe production, reducing the occurrence of safety accidents is the top priority. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of a methanol gasification catalytic oxidation heating device with an air inlet filter structure proposed by the present invention; Figure 2 for Figure 1 A schematic side view of the mid-structure; Figure 3 for Figure 1 Schematic cross-sectional view of the structure; Figure 4 for Figure 3 Schematic diagram of the three-dimensional structure of the middle curved filter; Figure 5for Figure 3 A schematic diagram of the structure enlargement at point A; Figure 6 for Figure 3 A magnified schematic diagram of the structure at point B in FIG. Figure 7 for Figure 5 A magnified schematic diagram of the structure at position C in FIG; Figure 8 for Figure 3 A magnified schematic diagram of the structure at D in FIG. Figure 9 for Figure 2 A schematic diagram of the structure at E in FIG. Figure 10 for Figure 3 Schematic diagram of the enlarged structure at F in FIG.

[0018] In the figure: 1. heating box; 2. curved filter; 3. hollow shaft; 4. cleaning roller; 5. bristles; 6. flow chamber; 7. dust suction hole; 8. L-shaped frame; 9. rotating shaft; 10. first fan blade; 11. first rod; 12. first driving wheel; 13. first driven wheel; 14. motor; 15. hollow rotating rod; 16. first gear; 17. second gear; 18. groove; 19. conductive slider; 20. sliding rod; 21. first spring; 22. conductive plate; 23. vertical slot; 24. magnetic rod; 25. limit slot; 26. second spring; 27. first electromagnet; 28. air inlet; 29. second rod ; 30. Horizontal plate; 31. Second fan blade; 32. First bevel gear; 33. Second bevel gear; 34. Electric heater; 35. Exhaust vent; 36. Vertical plate; 37. Third rod; 38. Third fan blade; 39. Heating pipe; 40. Second driving wheel; 41. Slide groove; 42. Vertical rod; 43. Arc plate; 44. Third spring; 45. Rectangular groove; 46. Rectangular block; 47. Tensioning wheel; 48. Limit rod; 49. Fourth spring; 50. Temperature sensor; 51. Cavity; 52. Conductive block; 53. Conductive slide; 54. Magnetic spring; 55. Second driven wheel; 56. Second electromagnet. DETAILED DESCRIPTION

[0019] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0020] Reference Figures 1-10 , a methanol gasification catalytic oxidation heating device with an air inlet filtering structure, comprising a heating box 1 and an arc-shaped filter 2; The cleaning mechanism includes two hollow shafts 3 symmetrically fixedly connected to the inner wall of the heating box 1. One end of the two hollow shafts 3 close to each other is fixedly connected to a cleaning roller 4. The other ends of the two hollow shafts 3 are both arranged through the side wall of the heating box 1. A plurality of bristles 5 are fixedly connected to the side wall of the cleaning roller 4. A flow cavity 6 is opened in the cleaning roller 4. The two ends of the flow cavity 6 are respectively connected to the two hollow shafts 3. A plurality of dust suction holes 7 are opened on the inner wall of the flow cavity 6; The driving mechanism includes an L-shaped frame 8 fixedly connected to the side wall of the heating box 1, and the side wall of the L-shaped frame 8 is rotatably connected to a rotating shaft 9. The rotating shaft 9 is located on the side wall of the hollow shaft 3 and is fixedly connected to a plurality of first fan blades 10. The side wall of the heating box 1 is rotatably connected to a first rod 11, and the side wall of the first rod 11 is fixedly connected to a first driving wheel 12, one of the side walls of the hollow shaft 3 is fixedly connected to a first driven wheel 13, and the first driving wheel 12 and the first driven wheel 13 are connected by a synchronous belt. The lower end of the heating box 1 is fixedly connected to a motor 14 through a bracket, and the output end of the motor 14 is fixedly connected to the first rod 11. The side wall of the L-shaped frame 8 is rotatably connected to a hollow rotating rod 15, the side wall of the first rod 11 is fixedly connected to a first gear 16, and the side wall of the hollow rotating rod 15 is fixedly connected to a second gear 17, and the first gear 16 is meshed with the second gear 17.

[0021] Two grooves 18 are symmetrically provided on the inner wall of the heating box 1. The inner walls of the two grooves 18 are sealed and slidably connected with a conductive slider 19. The side walls of the two conductive sliders 19 close to each other are fixedly connected with an arc filter 2. The inner walls of the two grooves 18 are fixedly connected with a slide rod 20. The side walls of the slide rod 20 are slidably connected with the conductive slider 19. A first spring 21 is fixedly connected between the top of the groove 18 and the conductive slider 19.

[0022] A starting mechanism is installed on the rotating shaft 9, which includes two vertical slots 23 symmetrically opened on the side wall of the rotating shaft 9. The inner walls of the two vertical slots 23 are slidably connected to magnetic rods 24. The inner wall of the hollow rotating rod 15 is provided with multiple limiting slots 25 that cooperate with the magnetic rods 24. A second spring 26 is fixedly connected between the magnetic rods 24 and the inner walls of the vertical slots 23.

[0023] The starting mechanism also includes a first electromagnet 27 fixedly connected to the inner wall of the vertical slot 23, a conductive plate 22 is embedded in the inner wall of one of the grooves 18, a cavity 51 is opened in the side wall of the heating box 1, a conductive block 52 is fixedly connected to the bottom of the cavity 51, and a conductive slide 53 is slidably connected to the inner wall of the cavity 51. The first electromagnet 27, the conductive plate 22, the conductive slider 19, the conductive block 52, the conductive slide 53 and the external power supply are electrically connected by wires.

[0024] Furthermore, as the curved filter 2 is used, its surface will be covered with more and more dust, which will cause the mesh of the curved filter 2 to be blocked. At this time, the curved filter 2 will form a greater resistance to the airflow flowing in the heating box 1, and the surface of the curved filter 2 will be subjected to greater pressure. As the blockage of the curved filter 2 becomes more and more serious, the wind pressure it is subjected to will become greater and greater. At this time, the wind pressure will push the curved filter 2 to move upward, thereby driving the conductive slider 19 to slide upward until the conductive slider 19 moves to contact the conductive plate 22. At this time, the circuit is connected, and the first electromagnet 27 is energized to generate magnetic repulsion, pushing the magnetic rod 24 to move into the limit groove 25. When the motor 14 rotates, it will synchronously drive the first gear 16 to rotate, and then drive the second gear 17 to rotate, thereby driving the hollow rotating rod 15 to rotate, driving the rotating shaft 9 to rotate, and driving the multiple first fan blades 10 to rotate. By setting the transmission ratio between the first gear 16 and the second gear 17, the rotation speed of the second gear 17 is much greater than that of the first gear The wheel 16, and then the multiple first blades 10 will rotate rapidly, and then the external air will enter one of the hollow shafts 3, and then the airflow will flow rapidly horizontally in the hollow shaft 3 and enter the flow chamber 6, and then the airflow will be discharged from one end of the other hollow shaft 3. According to Bernoulli's theorem, when the gas flows at equal heights, the faster the gas flow rate, the smaller the pressure generated. Then, when the airflow flows rapidly horizontally in the flow chamber 6, the pressure in the flow chamber 6 will be lower than the pressure outside the cleaning roller 4, so that a suction force is generated inside the flow chamber 6, and the rotation of the cleaning roller 4 will drive the multiple bristles 5 to rotate, sweeping away the dust covering the surface of the arc filter 2, and then the dust will be sucked into the flow chamber 6 through the multiple dust suction holes 7. Finally, the dust will be discharged through one end of the hollow shaft 3 together with the airflow, and then the arc filter 2 can be automatically cleaned without disassembly, which is more convenient to use, and can automatically start cleaning according to the degree of blockage of the arc filter 2, which is more automated.

[0025] An air intake mechanism is installed on the heating box 1, and the air intake mechanism includes an air inlet 28 opened at the lower end of the heating box 1. A horizontal plate 30 is fixedly connected to the inner wall of the air inlet 28. The lower end of the horizontal plate 30 is rotatably connected to the second rod 29. A plurality of second fan blades 31 are fixedly connected to the side wall of the second rod 29. One end of the first rod 11 extends to the interior of the heating box 1 and is fixedly connected to a first bevel gear 32. The upper end of the second rod 29 passes through the upper end of the horizontal plate 30 and is fixedly connected to the second bevel gear 33. The first bevel gear 32 is meshed with the second bevel gear 33.

[0026] A heating mechanism is installed on the heating box 1, which includes an electric heater 34 fixedly connected to the top of the heating box 1. An exhaust port 35 is opened on the side wall of the heating box 1. A vertical plate 36 is fixedly connected to the inner wall of the exhaust port 35. A third rod 37 is rotatably connected to the side wall of the vertical plate 36. A plurality of third fan blades 38 are fixedly connected to the side wall of the third rod 37. A heating pipe 39 is sealed and fixedly connected to the inner wall of the exhaust port 35. The other end of the heating pipe 39 is connected to the reactor of methanol gasification oxidation.

[0027] The heating mechanism also includes a second driving wheel 40 fixedly connected to the side wall of one of the hollow shafts 3, one end of the third rod 37 passes through the side wall of the heating box 1 and is fixedly connected to the second driven wheel 55, and the side wall of the second driven wheel 55 is provided with multiple slide grooves 41, and the inner walls of the multiple slide grooves 41 are all slidably connected with vertical rods 42, the vertical rods 42 are made of magnetic material, and one end of the vertical rod 42 is fixedly connected to an arc plate 43, and a third spring 44 is fixedly connected between the vertical rod 42 and the inner wall of the slide groove 41, and the multiple arc plates 43 are connected to the second driving wheel 40 through a synchronous belt.

[0028] Furthermore, the motor 14 and the electric heater 34 are started, and the motor 14 drives the first rod 11 to rotate, and then drives the first bevel gear 32 to rotate, drives the second bevel gear 33 to rotate, thereby drives the second rod 29 to rotate, drives the plurality of second blades 31 to rotate, and then the external air is drawn into the heating box 1 through the air inlet 28, and then the air flows from bottom to top, and the dust therein is filtered out through the arc filter 2, and the electric heater 34 heats the air entering the heating box 1, and the rotation of the first rod 11 will synchronously drive the first driving wheel 12 to rotate, and then drive the first driven wheel 13 to rotate, drive the hollow shaft 3 to rotate, drive the second driving wheel 40 to rotate, and then drive the second driven wheel 55 to rotate, drive the third rod 37 to rotate, and drive the plurality of third blades 38 to rotate. At this time, the hot air in the heating box 1 will be discharged through the air inlet and outlet 35, and then the hot air will be discharged into the methanol gas catalytic oxidation reactor through the heating pipe 39 to provide heat to it.

[0029] A second electromagnet 56 is fixedly connected to the inner wall of the chute 41 , and the conductive slider 19 , the conductive plate 22 , the second electromagnet 56 and the external power supply are electrically connected via wires.

[0030] Furthermore, when the arc filter 2 is seriously clogged, the air flow will become smaller, and the hot air pumped into the reactor will be reduced, resulting in insufficient heat supply. Therefore, when the arc filter 2 is seriously clogged and is cleaned, the second electromagnet 56 will pass a positive current, thereby generating a magnetic attraction, attracting multiple vertical rods 42 to move toward the center of the second driven wheel 55, and then driving multiple arc plates 43 to move toward the center of the second driven wheel 55, which is equivalent to the diameter of the second driven wheel 55 being reduced at this time, and then the rotation speed of the third rod 37 will be accelerated, and then the rotation speed of the multiple third fan blades 38 will be accelerated, which can accelerate the discharge speed of the hot air. Therefore, when the arc filter 2 is seriously clogged, sufficient hot air supply can still be maintained to avoid insufficient heat supply.

[0031] A temperature sensor 50 is installed on the top of the heating box 1, and a magnetic spring 54 is fixedly connected between the top of the cavity 51 and the conductive slide 53. The temperature sensor 50, the magnetic spring 54 and the second electromagnet 56 are connected through a PLC control circuit.

[0032] Furthermore, since the boiling point of methanol is 64.7 degrees Celsius, and methanol itself is flammable and explosive, the temperature of the hot gas needs to be controlled when providing heat. When the temperature in the heating box 1 exceeds 65 degrees Celsius, the temperature sensor 50 will receive a signal and control the electric heater 34 to cut off the power through the PLC control circuit, stop heating the temperature in the heating box 1, and thus facilitate the temperature reduction in the heating box 1. At this time, the temperature sensor 50 will pass a reverse current to the second electromagnet 56 through the PLC control circuit, and the second electromagnet 56 will generate a magnetic repulsion force, pushing the vertical rod 42 to slide away from the center of the second driven wheel 55, driving multiple arc plates 43 away from the second driven wheel 55, which is equivalent to increasing the diameter of the second driven wheel 55, and then the rotation speed of the second driven wheel 55 will decrease, so that the rotation speed of the multiple third fan blades 38 will decrease, and the heating speed will be reduced at this time, thereby avoiding excessive heating, making the temperature inside the reactor too high, causing methanol to explode, and thus causing a safety accident.

[0033] It is worth mentioning that when the arc filter 2 is severely clogged and needs to be cleaned, and the heating temperature is too high at the same time, the temperature sensor 50 will energize the magnetic spring 54 through the PLC control circuit, so that the magnetic spring 54 is energized, driving the conductive slide 53 to move upward and break away from the contact with the conductive block 52. At this time, the second electromagnet 56 cannot pass forward current, but can only pass reverse current, thereby reducing the heat supply of the reactor. Because compared with safe production, reducing the occurrence of safety accidents is the top priority.

[0034] A tensioning mechanism is installed on the heating box 1, and the tensioning mechanism includes a rectangular groove 45 opened on the side wall of the heating box 1, and a rectangular block 46 is slidably connected to the inner wall of the rectangular groove 45, and the side wall of the rectangular block 46 is rotatably connected to the tensioning wheel 47 through a pin shaft. The inner wall of the rectangular groove 45 is fixedly connected to a limit rod 48, and the side wall of the limit rod 48 is slidably connected to the rectangular block 46. The side wall of the limit rod 48 is sleeved with a fourth spring 49, and the two ends of the fourth spring 49 are respectively fixedly connected to the inner wall of the rectangular groove 45 and the side wall of the rectangular block 46. The multiple arc plates 43, the second driving wheel 40 and the tensioning wheel 47 are connected by a synchronous belt.

[0035] It should be noted that when the arc plate 43 moves to change the diameter of the second driven wheel 55, the tensioning wheel 47 always remains tightly against the synchronous belt under the action of the fourth spring 49, so that the synchronous belt remains taut at all times to ensure effective power transmission.

[0036] In the present invention, the motor 14 and the electric heater 34 are started, and the motor 14 drives the first rod 11 to rotate, and then drives the first bevel gear 32 to rotate, drives the second bevel gear 33 to rotate, thereby drives the second rod 29 to rotate, drives the plurality of second blades 31 to rotate, and then the external air is drawn into the heating box 1 through the air inlet 28, and then the air flows from bottom to top and filters out the dust therein through the arc filter 2, and the electric heater 34 heats the air entering the heating box 1, and the rotation of the first rod 11 will synchronously drive the first driving wheel 12 to rotate, and then drive the first driven wheel 13 to rotate, drive the hollow shaft 3 to rotate, drive the second driving wheel 40 to rotate, and then drive the second driven wheel 55 to rotate, drive the third rod 37 to rotate, and drive the plurality of third blades 38 to rotate. At this time, the hot air in the heating box 1 will be discharged through the air inlet and outlet 35, and then the hot air will be discharged into the methanol gas catalytic oxidation reactor through the heating pipe 39 to provide heat to it.

[0037] As the curved filter 2 is used, its surface will be covered with more and more dust, which will cause the mesh of the curved filter 2 to be clogged. At this time, the curved filter 2 will form a greater resistance to the airflow flowing in the heating box 1, and the surface of the curved filter 2 will be subjected to greater pressure. As the blockage of the curved filter 2 becomes more and more serious, the wind pressure it is subjected to will become greater and greater. At this time, the wind pressure will push the curved filter 2 to move upward, and then drive the conductive slider 19 to slide upward until the conductive slider 19 moves to contact with the conductive plate 22. At this time, the circuit is connected, and the first electromagnet 27 is energized to generate magnetic repulsion, which pushes the magnetic rod 24 to move into the limit slot 2 5, and when the motor 14 rotates, it will synchronously drive the first gear 16 to rotate, and then drive the second gear 17 to rotate, thereby driving the hollow rotating rod 15 to rotate, driving the rotating shaft 9 to rotate, and driving the plurality of first fan blades 10 to rotate. By setting the transmission ratio between the first gear 16 and the second gear 17, the rotation speed of the second gear 17 is much greater than the first gear 16, and then the plurality of first fan blades 10 will rotate rapidly, and then the external air will enter one of the hollow shafts 3, and then the airflow will flow rapidly horizontally in the hollow shaft 3 and enter the flow chamber 6, and then the airflow will be discharged from one end of the other hollow shaft 3. According to Bernoulli's theorem, when the gas flows at equal heights, the faster the gas flow rate, the smaller the pressure generated. When the airflow flows rapidly horizontally in the flow chamber 6, the pressure in the flow chamber 6 will be lower than the pressure outside the cleaning roller 4, so that a suction force is generated inside the flow chamber 6. The rotation of the cleaning roller 4 will drive the multiple bristles 5 to rotate, and the dust covered on the surface of the arc filter 2 will be swept down. Then the dust will be sucked into the flow chamber 6 through the multiple dust suction holes 7, and finally the dust will be discharged through one end of the hollow shaft 3 along with the airflow, and the arc filter 2 can be automatically cleaned without disassembly, which is more convenient to use. It is convenient and can automatically start cleaning according to the degree of blockage of the curved filter 2, which is more automated. After the dust on the surface of the curved filter 2 is cleaned, its resistance to the airflow will become smaller, and then under the action of the first spring 21, the conductive slider 19 will move downward and reset, thereby driving the curved filter 2 to move downward and reset, and the conductive slider 19 will separate from the conductive plate 22, the circuit will be powered off, and the magnetic rod 24 will move out of the limit groove 25 under the action of the second spring 26, at this time the rotating shaft 9 will stop rotating, the first fan blade 10 will stop rotating, and the dust suction hole 7 will no longer pump air, reducing the heat loss in the heating box 1.

[0038] When the curved filter 2 is seriously clogged, the airflow will become smaller, and the hot air pumped into the reactor will be reduced, resulting in insufficient heat supply. Therefore, when the curved filter 2 is seriously clogged and is cleaned, the second electromagnet 56 will pass a positive current, thereby generating a magnetic attraction, attracting multiple vertical rods 42 to move toward the center of the second driven wheel 55, and then driving multiple curved plates 43 to move toward the center of the second driven wheel 55, which is equivalent to the diameter of the second driven wheel 55 being reduced at this time, and then the rotation speed of the third rod 37 will be accelerated, and then the rotation speed of the multiple third fan blades 38 will be accelerated, which can accelerate the discharge speed of the hot air. Therefore, when the curved filter 2 is seriously clogged, sufficient hot air supply can still be maintained to avoid insufficient heat supply.

[0039] Since the boiling point of methanol is 64.7 degrees Celsius, and methanol itself is flammable and explosive, the temperature of the hot gas needs to be controlled when providing heat. When the temperature in the heating box 1 exceeds 65 degrees Celsius, the temperature sensor 50 will receive a signal and control the electric heater 34 to cut off the power through the PLC control circuit, stop heating the temperature in the heating box 1, and thus facilitate the temperature reduction in the heating box 1. At this time, the temperature sensor 50 will pass a reverse current to the second electromagnet 56 through the PLC control circuit, and the second electromagnet 56 will generate a magnetic repulsion force, pushing the vertical rod 42 to slide away from the center of the second driven wheel 55, driving multiple arc plates 43 away from the second driven wheel 55, which is equivalent to increasing the diameter of the second driven wheel 55, and then the speed of the second driven wheel 55 will decrease, so that the speed of the multiple third fan blades 38 will decrease, and the heating speed will be reduced at this time, thereby avoiding excessive heating, making the temperature inside the reactor too high, causing methanol to explode, and then causing a safety accident.

[0040] In addition, when the arc filter 2 is severely clogged and needs to be cleaned, and the heating temperature is too high at the same time, the temperature sensor 50 will energize the magnetic spring 54 through the PLC control circuit, so that the magnetic spring 54 is energized, driving the conductive slide 53 to move upward and break away from the contact with the conductive block 52. At this time, the second electromagnet 56 cannot pass forward current, but can only pass reverse current, thereby reducing the heat supply of the reactor. Because compared with safe production, reducing the occurrence of safety accidents is the top priority.

[0041] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A methanol gasification catalytic oxidation heating equipment with an air inlet filtration structure, characterized in that: include: Heating box (1) and curved filter (2); A cleaning mechanism, the cleaning mechanism comprising two hollow shafts (3) symmetrically fixedly connected to the inner wall of the heating box (1), one end of the two hollow shafts (3) close to each other being fixedly connected to a cleaning roller (4), the other ends of the two hollow shafts (3) being arranged to pass through the side wall of the heating box (1), a plurality of bristles (5) being fixedly connected to the side wall of the cleaning roller (4), a flow cavity (6) being provided in the cleaning roller (4), the two ends of the flow cavity (6) being respectively connected to the two hollow shafts (3), and a plurality of dust suction holes (7) being provided on the inner wall of the flow cavity (6); The driving mechanism comprises an L-shaped frame (8) fixedly connected to the side wall of the heating box (1), the side wall of the L-shaped frame (8) is rotatably connected to a rotating shaft (9), the side wall of the rotating shaft (9) located in the hollow shaft (3) is fixedly connected to a plurality of first fan blades (10), the side wall of the heating box (1) is rotatably connected to a first rod (11), the side wall of the first rod (11) is fixedly connected to a first driving wheel (12), one of the side walls of the hollow shaft (3) is fixedly connected to a first driven wheel (13), the first driving wheel (12) is fixedly connected to the side wall of the first driving wheel (12), the first driven wheel (13 ... The wheel (12) and the first driven wheel (13) are connected via a synchronous belt. The lower end of the heating box (1) is fixedly connected to a motor (14) via a bracket. The output end of the motor (14) is fixedly connected to the first rod (11). The side wall of the L-shaped frame (8) is rotatably connected to a hollow rotating rod (15). The side wall of the first rod (11) is fixedly connected to a first gear (16). The side wall of the hollow rotating rod (15) is fixedly connected to a second gear (17). The first gear (16) is meshed with the second gear (17).

2. The methanol gasification catalytic oxidation heating equipment with an air inlet filtration structure according to claim 1 is characterized in that: in: The inner wall of the heating box (1) is symmetrically provided with two grooves (18), the inner walls of the two grooves (18) are sealed and slidably connected with a conductive slider (19), the side walls of the two conductive sliders (19) close to each other are fixedly connected with an arc filter (2), the inner walls of the two grooves (18) are fixedly connected with a slide rod (20), the side walls of the slide rod (20) are slidably connected with the conductive slider (19), and a first spring (21) is fixedly connected between the top of the groove (18) and the conductive slider (19).

3. The methanol gasification catalytic oxidation heating equipment with an air inlet filtration structure according to claim 2 is characterized in that: in: A starting mechanism is installed on the rotating shaft (9), and the starting mechanism includes two vertical slots (23) symmetrically opened on the side wall of the rotating shaft (9), the inner walls of the two vertical slots (23) are slidably connected to magnetic rods (24), the inner wall of the hollow rotating rod (15) is opened with a plurality of limiting slots (25) cooperating with the magnetic rods (24), and a second spring (26) is fixedly connected between the magnetic rods (24) and the inner walls of the vertical slots (23).

4. The methanol gasification catalytic oxidation heating equipment with an air inlet filtration structure according to claim 3 is characterized in that: in: The starting mechanism further comprises a first electromagnet (27) fixedly connected to the inner wall of the vertical groove (23), wherein a conductive plate (22) is embedded in the inner wall of one of the grooves (18), a cavity (51) is opened in the side wall of the heating box (1), a conductive block (52) is fixedly connected to the bottom of the cavity (51), a conductive slide (53) is slidably connected to the inner wall of the cavity (51), and the first electromagnet (27), the conductive plate (22), the conductive slide (19), the conductive block (52), the conductive slide (53) and the external power supply are electrically connected via wires.

5. The methanol gasification catalytic oxidation heating equipment with an air inlet filtration structure according to claim 1 is characterized in that: in: The heating box (1) is provided with an air inlet mechanism, comprising an air inlet (28) opened at the lower end of the heating box (1), a transverse plate (30) being fixedly connected to the inner wall of the air inlet (28), a second rod (29) being rotatably connected to the lower end of the transverse plate (30), a plurality of second blades (31) being fixedly connected to the side wall of the second rod (29), one end of the first rod (11) extending into the interior of the heating box (1) and being fixedly connected to a first bevel gear (32), an upper end of the second rod (29) penetrating the upper end of the transverse plate (30) and being fixedly connected to a second bevel gear (33), and the first bevel gear (32) being meshed with the second bevel gear (33).

6. The methanol gasification catalytic oxidation heating equipment with an air inlet filtration structure according to claim 1 is characterized in that: in: A heating mechanism is installed on the heating box (1), and the heating mechanism includes an electric heater (34) fixedly connected to the top of the heating box (1); an exhaust port (35) is opened on the side wall of the heating box (1); a vertical plate (36) is fixedly connected to the inner wall of the exhaust port (35); a third rod (37) is rotatably connected to the side wall of the vertical plate (36); a plurality of third fan blades (38) are fixedly connected to the side wall of the third rod (37); and a heating pipe (39) is sealed and fixedly connected to the inner wall of the exhaust port (35).

7. The methanol gasification catalytic oxidation heating equipment with an air inlet filtration structure according to claim 6 is characterized in that: in: The heating mechanism further comprises a second driving wheel (40) fixedly connected to the side wall of one of the hollow shafts (3); one end of the third rod (37) penetrates the side wall of the heating box (1) and is fixedly connected to the second driven wheel (55); a plurality of chute (41) is provided on the side wall of the second driven wheel (55); the inner walls of the plurality of chute (41) are all slidably connected to vertical rods (42); the vertical rod (42) is made of magnetic material; one end of the vertical rod (42) is fixedly connected to an arc plate (43); a third spring (44) is fixedly connected between the vertical rod (42) and the inner wall of the chute (41); the plurality of arc plates (43) and the second driving wheel (40) are connected via a synchronous belt.

8. The methanol gasification catalytic oxidation heating equipment with an air inlet filtration structure according to claim 7 is characterized in that: in: A second electromagnet (56) is fixedly connected to the inner wall of the slide groove (41), and the conductive slider (19), the conductive plate (22), the second electromagnet (56) and the external power supply are electrically connected via a wire.

9. The methanol gasification catalytic oxidation heating equipment with an air inlet filtration structure according to claim 8, characterized in that: in: A temperature sensor (50) is installed on the top of the heating box (1), a magnetic spring (54) is fixedly connected between the top of the cavity (51) and the conductive slide (53), and the temperature sensor (50), the magnetic spring (54) and the second electromagnet (56) are connected via a PLC control circuit.

10. The methanol gasification catalytic oxidation heating equipment with an air inlet filtration structure according to claim 7, characterized in that: in: The heating box (1) is provided with a tensioning mechanism, which comprises a rectangular groove (45) provided on the side wall of the heating box (1), the inner wall of the rectangular groove (45) being slidably connected to a rectangular block (46), the side wall of the rectangular block (46) being rotatably connected to a tensioning wheel (47) via a pin shaft, the inner wall of the rectangular groove (45) being fixedly connected to a limiting rod (48), the side wall of the limiting rod (48) being slidably connected to the rectangular block (46), the side wall of the limiting rod (48) being sleeved with a fourth spring (49), the two ends of the fourth spring (49) being fixedly connected to the inner wall of the rectangular groove (45) and the side wall of the rectangular block (46), respectively, and the plurality of arc plates (43), the second driving wheel (40) and the tensioning wheel (47) being connected via a synchronous belt.

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