Industrial coating drying and curing waste gas treatment combustion preheating device

Abstract

The invention relates to the technical field of industrial coating drying and curing waste gas treatment, and discloses an industrial coating drying and curing waste gas treatment combustion preheating device which comprises a waste gas pipe, a buffer bottle and a gas inlet pipe, a cleaning mechanism is arranged at one end of the gas inlet pipe, and the cleaning mechanism comprises a preheating bottle, a fixing support, a mounting frame, a first rotating rod and a spiral blade. The outer wall of the preheating bottle is fixedly connected with the inner wall of the fixing support, the inner wall of the preheating bottle is fixedly connected with the two ends of the mounting frame, and the inner wall of the mounting frame is rotationally connected with the outer wall of the first rotating rod through a bearing. Impurities in the preheating bottle can be better removed, and the problems that after a large amount of waste gas enters the preheating bottle, a large amount of impurities exist in the preheating bottle after the preheating bottle is used for a long time, normal use and the heat exchange effect of the preheating bottle are affected, and the service life of the preheating bottle is prolonged are solved. Therefore, the working efficiency of the combustion preheating utilization device can be effectively improved, and the combustion preheating utilization device is practical and suitable for being widely popularized and used.

Description

Technical Field

[0001] The present invention belongs to the technical field of industrial painting drying and curing waste gas treatment. Specifically, it relates to a combustion preheating device for industrial painting drying and curing waste gas treatment. Background Art

[0002] The curing furnace uses direct heating. The waste gas generated by direct combustion and the harmful waste gas of paint solvents need to be treated by a high-temperature cracking furnace. Organic waste gas is generally a combustible gas. Under the conditions of a temperature of 600 - 800 °C and a residence time of 0.3 - 0.5 seconds, it can be completely burned into carbon dioxide and water, and then discharged.

[0003] After retrieval, CN111237785A discloses a combustion preheating utilization device for waste gas treatment of a painting drying furnace. This combustion preheating utilization device for waste gas treatment of a painting drying furnace preheats the waste gas before passing it into the high-temperature cracking furnace, thereby reducing the load of the high-temperature cracking furnace, reducing costs, and adding a waste heat recovery device at the outlet of the high-temperature cracking furnace. This not only reduces thermal pollution but also re-uses thermal energy, saving energy and being environmentally friendly. And an activated carbon adsorption box is provided at the outlet of the waste heat recovery device, which can adsorb and treat the waste gas that is not easy to burn, thereby reducing air pollution.

[0004] However, through the exploration of the inventor of the present invention, it is found that this technical solution still has at least the following defects:

[0005] After a large amount of waste gas enters the preheating bottle, after long-term use of the preheating bottle, a large amount of impurities will be stored inside the preheating bottle, which will affect the normal use and heat exchange effect of the preheating bottle, and reduce the working efficiency of the combustion preheating utilization device. 。

[0006] In view of this, the present invention is specifically proposed. Summary of the Invention

[0007] To solve the above technical problems, the basic concept of the technical solution adopted by the present invention is: it can better clean the impurities inside the preheating bottle, solve the problem that after a large amount of waste gas enters the preheating bottle, after long-term use of the preheating bottle, a large amount of impurities will be stored inside the preheating bottle, which will affect the normal use and heat exchange effect of the preheating bottle, and thus can effectively improve the working efficiency of the combustion preheating utilization device.

[0008] Industrial coating drying and curing waste gas treatment combustion preheating device, including a waste gas pipe, a buffer bottle, and an intake pipe. One end of the intake pipe is provided with a cleaning mechanism, and the cleaning mechanism includes a preheating bottle, a fixed bracket, a mounting frame, a first rotating rod, and a spiral blade. The outer wall of the preheating bottle is fixedly connected to the inner wall of the fixed bracket, the inner wall of the preheating bottle is fixedly connected to both ends of the mounting frame, the inner wall of the mounting frame is rotatably connected to the outer wall of the first rotating rod through a bearing, the outer wall of the first rotating rod is fixedly connected to the outer wall of the spiral blade, a fixed sleeve is fixedly installed on the outer wall of the first rotating rod, a connecting rod is fixedly installed on the outer wall of the fixed sleeve, and a cleaning brush is fixedly installed at one end of the connecting rod.

[0009] One end of the intake pipe is provided with a blocking mechanism.

[0010] As a preferred embodiment of the present invention, the blocking mechanism includes a connecting sleeve, a fixing plate, a second rotating rod, a baffle plate, and a blocking plate. The outer wall of the connecting sleeve is fixedly connected to one end of the fixing plate, the inner wall of the fixing plate is rotatably connected to the outer wall of the second rotating rod through a second bearing, one end of the second rotating rod is fixedly connected to one side of the baffle plate, one side of the blocking plate is fixedly connected to the inner wall of the preheating bottle, an airbag is fixedly installed on the inner wall of the blocking plate, and a rubber rod is fixedly installed on the inner wall of the blocking plate.

[0011] As a preferred embodiment of the present invention, one end of the intake pipe is provided with a stirring mechanism, and the stirring mechanism includes an adsorption box, a motor, a third rotating rod, and a stirring rod. The top of the adsorption box is fixedly connected to the bottom of the motor, the output end of the motor is fixedly connected to the top of the third rotating rod, and the outer wall of the third rotating rod is fixedly connected to one end of the stirring rod.

[0012] As a preferred embodiment of the present invention, the number of the fixed brackets is two, the fixed brackets are symmetrically distributed on the outer wall of the preheating bottle respectively, the number of the mounting frames is two, and the mounting frames are symmetrically distributed on the outer wall of the first rotating rod respectively, so as to better support and fix the preheating bottle and support and fix the first rotating rod.

[0013] As a preferred embodiment of the present invention, the number of the spiral blades is two, the spiral blades are symmetrically distributed on the outer wall of the first rotating rod respectively, the number of the connecting rods is six, the connecting rods are symmetrically distributed on the outer wall of the fixed sleeve respectively, the number of the cleaning brushes is two, and the cleaning brushes are symmetrically distributed at one end of the six connecting rods respectively, so as to better rotate the first rotating rod and clean the impurities in the preheating bottle, effectively preventing the impurities in the waste gas from accumulating in the preheating bottle and affecting the use.

[0014] As a preferred embodiment of the present invention, the baffle is in a fan shape, the number of the air bags is two, the air bags are symmetrically distributed on the inner wall of the blocking plate respectively, the number of the rubber rods is two, and the rubber rods are symmetrically distributed on the inner wall of the blocking plate respectively, so as to better process the waste gas, enable the waste gas to indirectly enter the high-temperature cracking furnace for treatment, and improve the treatment effect.

[0015] As a preferred embodiment of the present invention, a ventilation opening is provided on one side of the blocking plate, and an air inlet hole is provided on one side of the blocking plate, so as to better expand the air bag and better discharge the waste gas in the preheating bottle.

[0016] As a preferred embodiment of the present invention, the number of the stirring rods is ten, the stirring rods are symmetrically distributed on the outer wall of the rotating rod three respectively, an air outlet hole is provided at the top of the adsorption box, and a movable door is installed on the front of the adsorption box, so as to better stir the activated carbon and better absorb and filter the non-flammable waste gas.

[0017] As a preferred embodiment of the present invention, one end of the waste gas pipe is communicated with one end of the buffer bottle, the other end of the buffer bottle is communicated with one end of the air inlet pipe, the other end of the air inlet pipe is communicated with one end of the preheating bottle, the other end of the preheating bottle is communicated with one end of the guide pipe, the other end of the guide pipe is communicated with the top of the high-temperature cracking furnace, and one side of the high-temperature cracking furnace is communicated with one side of the waste heat recovery device.

[0018] As a preferred embodiment of the present invention, the other side of the waste heat recovery device is communicated with one side of the adsorption box, a copper pipe is arranged on the outer wall of the preheating bottle, one end of the copper pipe is communicated with one end of the connecting pipe, the other end of the copper pipe is communicated with one end of the water pump, the other end of the water pump is communicated with one side of the water tank, and the other side of the water tank is communicated with one end of the connecting pipe.

[0019] The present invention has the following beneficial effects compared with the prior art:

[0020] The present invention realizes better removal of impurities inside the preheating bottle through the cleaning mechanism installed at one end of the air inlet pipe Cleaning , and solves the problem that after a large amount of waste gas enters the preheating bottle, a large amount of impurities will be stored inside the preheating bottle after long-term use of the preheating bottle, which will affect the normal use and heat exchange effect of the preheating bottle, thereby effectively improving the working efficiency of the combustion preheating utilization device.

[0021] The present invention realizes better discharging of waste gas into the high-temperature cracking furnace for treating the waste gas through a blocking mechanism installed at one end of the intake pipe, and can indirectly rotate and move the baffle through an airbag and a rubber rod, so that the waste gas can indirectly enter the high-temperature cracking furnace, be better used, and improve the working efficiency of treatment and utilization.

[0022] The present invention realizes better filtering of the non-flammable waste gas through a stirring mechanism installed at one end of the intake pipe, and can better perform heat exchange work, which is more convenient for the operator to use and improves the working efficiency.

[0023] The following further describes in detail the specific embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In the drawings:

[0025] Figure 1 is a three-dimensional structural schematic diagram of an industrial coating drying and curing waste gas treatment combustion preheating device;

[0026] Figure 2 is a sectional structural schematic diagram of an industrial coating drying and curing waste gas treatment combustion preheating device;

[0027] Figure 3 is a structural schematic diagram of the cleaning mechanism of an industrial coating drying and curing waste gas treatment combustion preheating device Figure 1 ;

[0028] Figure 4 is a structural schematic diagram of the cleaning mechanism of an industrial coating drying and curing waste gas treatment combustion preheating device Figure 2 ;

[0029] Figure 5 is a structural schematic diagram of the blocking mechanism of an industrial coating drying and curing waste gas treatment combustion preheating device Figure 1 ;

[0030] Figure 6 is a structural schematic diagram of the blocking mechanism of an industrial coating drying and curing waste gas treatment combustion preheating device Figure 2 ;

[0031] Figure 7 is a structural schematic diagram of the stirring mechanism of an industrial coating drying and curing waste gas treatment combustion preheating device.

[0032] In the figure: 1, exhaust pipe; 2, buffer bottle; 3, intake pipe; 4, cleaning mechanism; 401, preheating bottle; 402, fixing bracket; 403, mounting bracket; 404, first rotating rod; 405, spiral blade; 406, fixing sleeve; 407, connecting rod; 408, cleaning brush; 5, blocking mechanism; 501, connecting sleeve; 502, fixing plate; 503, second rotating rod; 504, baffle plate; 505, blocking board; 506, airbag; 507, rubber rod; 6, air duct; 7, high-temperature cracking furnace; 8, waste heat recovery device; 9, stirring mechanism; 901, adsorption box; 902, motor; 903, third rotating rod; 904, stirring rod; 10, connecting pipe; 11, water tank; 12, water pump; 13, copper pipe. Detailed implementation manner

[0033] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments in conjunction with the accompanying drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0034] Embodiment 1:

[0035] As Figures 1 to 7 shown, an industrial painting drying and curing waste gas treatment combustion preheating device includes an exhaust pipe 1, a buffer bottle 2, and an intake pipe 3. One end of the intake pipe 3 is provided with a cleaning mechanism 4. The cleaning mechanism 4 includes a preheating bottle 401, a fixing bracket 402, a mounting bracket 403, a first rotating rod 404, and a spiral blade 405. The outer wall of the preheating bottle 401 is fixedly connected to the inner wall of the fixing bracket 402, and the inner wall of the preheating bottle 401 is fixedly connected to both ends of the mounting bracket 403. The inner wall of the mounting bracket 403 is rotatably connected to the outer wall of the first rotating rod 404 through a bearing. The outer wall of the first rotating rod 404 is fixedly connected to the outer wall of the spiral blade 405. A fixing sleeve 406 is fixedly installed on the outer wall of the first rotating rod 404. A connecting rod 407 is fixedly installed on the outer wall of the fixing sleeve 406. One end of the connecting rod 407 is fixedly installed with a cleaning brush 408;

[0036] In this embodiment, the number of fixing brackets 402 is two, and the fixing brackets 402 are symmetrically distributed on the outer wall of the preheating bottle 401 respectively. The number of mounting brackets 403 is two, and the mounting brackets 403 are symmetrically distributed on the outer wall of the first rotating rod 404 respectively, so as to better support and fix the preheating bottle 401 and support and fix the first rotating rod 404;

[0037] Further, the number of the spiral vanes 405 is two, and the spiral vanes 405 are symmetrically distributed on the outer wall of the first rotating rod 404 respectively. The number of the connecting rods 407 is six, and the connecting rods 407 are symmetrically distributed on the outer wall of the fixed sleeve 406 respectively. The number of the cleaning brushes 408 is two, and the cleaning brushes 408 are symmetrically distributed at one ends of the six connecting rods 407 respectively, so that the first rotating rod 404 can rotate better, and the impurities in the preheating bottle 401 can be cleaned, effectively preventing the impurities in the waste gas from accumulating in the preheating bottle 401 and affecting the use.

[0038] Embodiment 2:

[0039] Differing from the above embodiment, a blocking mechanism 5 is provided at one end of the intake pipe 3;

[0040] The blocking mechanism 5 includes a connecting sleeve 501, a fixing plate 502, a second rotating rod 503, a baffle 504, and a blocking plate 505. One end of the outer wall of the connecting sleeve 501 is fixedly connected to one end of the fixing plate 502. The inner wall of the fixing plate 502 is rotatably connected to the outer wall of the second rotating rod 503 through a second bearing. One end of the second rotating rod 503 is fixedly connected to one side of the baffle 504. One side of the blocking plate 505 is fixedly connected to the inner wall of the preheating bottle 401. An airbag 506 is fixedly installed on the inner wall of the blocking plate 505, and a rubber rod 507 is fixedly installed on the inner wall of the blocking plate 505;

[0041] In this embodiment, the shape of the baffle 504 is fan-shaped. The number of the airbags 506 is two, and the airbags 506 are symmetrically distributed on the inner wall of the blocking plate 505 respectively. The number of the rubber rods 507 is two, and the rubber rods 507 are symmetrically distributed on the inner wall of the blocking plate 505 respectively, so that the waste gas can be treated better, enabling the waste gas to indirectly enter the high-temperature cracking furnace 7 for treatment and improving the treatment effect;

[0042] Further, a ventilation opening is provided on one side of the blocking plate 505, and an air inlet hole is provided on one side of the blocking plate 505, so that the airbag 506 can expand better, and the waste gas in the preheating bottle 401 can be discharged better.

[0043] Embodiment 3:

[0044] Differing from the above embodiment, a stirring mechanism 9 is provided at one end of the intake pipe 3;

[0045] The stirring mechanism 9 includes an adsorption box 901, a motor 902, a third rotating rod 903, and a stirring rod 904. The top of the adsorption box 901 is fixedly connected to the bottom of the motor 902. The output end of the motor 902 is fixedly connected to the top of the third rotating rod 903. One end of the outer wall of the third rotating rod 903 is fixedly connected to one end of the stirring rod 904;

[0046] In this embodiment, the number of stirring rods 904 is ten. The stirring rods 904 are symmetrically distributed on the outer wall of the third rotating rod 903. An air outlet hole is provided at the top of the adsorption box 901, and a movable door is installed on the front of the adsorption box 901, so as to better stir the activated carbon and better absorb and filter the non-flammable waste gas;

[0047] Further, one end of the waste gas pipe 1 is communicated with one end of the buffer bottle 2, the other end of the buffer bottle 2 is communicated with one end of the intake pipe 3, the other end of the intake pipe 3 is communicated with one end of the preheating bottle 401, the other end of the preheating bottle 401 is communicated with one end of the guide pipe 6, and the other end of the guide pipe 6 is communicated with the top of the high-temperature cracking furnace 7. One side of the high-temperature cracking furnace 7 is communicated with one side of the waste heat recovery device 8;

[0048] Furthermore, the other side of the waste heat recovery device 8 is communicated with one side of the adsorption box 901. A copper pipe 13 is provided on the outer wall of the preheating bottle 401. One end of the copper pipe 13 is communicated with one end of the connecting pipe 10, the other end of the copper pipe 13 is communicated with one end of the water pump 12, the other end of the water pump 12 is communicated with one side of the water tank 11, and the other side of the water tank 11 is communicated with one end of the connecting pipe 10.

[0049] The implementation principle of the industrial coating drying and curing waste gas treatment combustion preheating device in this embodiment is as follows: When in use, the external waste gas enters the buffer bottle 2 through the waste gas pipe 1 for buffering. At this time, the waste gas continuously enters the preheating bottle 401 through the intake pipe 3. At this time, the airbag 506 will expand due to the continuous entry of the waste gas. When the airbag 506 expands, the limit fixation of the first rotating rod 404 can be cancelled, and the spiral blade 405 can be rotated due to the entry of the waste gas. The rotation of the spiral blade 405 can drive the first rotating rod 404 to rotate. The rotation of the first rotating rod 404 drives the fixed sleeve 406 to rotate. The rotation of the fixed sleeve 406 drives the connecting rod 407 to rotate. The rotation of the connecting rod 407 drives the cleaning brush 408 to rotate. As the cleaning brush 408 rotates, the impurities on the inner wall of the preheating bottle 401 can be cleaned, so as to better use, effectively prevent the impurities in the waste gas from accumulating inside the preheating bottle 401, and improve the working efficiency of the device;

[0050] After the waste gas enters the preheating bottle 401, the airbag 506 is inflated through the air inlet opened on one side of the baffle 505. The continuous inflation of the airbag 506 will squeeze the baffle 504 to move. The movement of the baffle 504 can squeeze the rubber rod 507 to bend, so that the limit fixation of the baffle 504 can be cancelled. At this time, the first rotating rod 404 can rotate. When the first rotating rod 404 rotates, it can drive the baffle 504 to rotate. At this time, the waste gas in the preheating bottle 401 can enter the air duct 6 through the air inlet hole opened on one side of the baffle 505. The waste gas can be sent into the high-temperature cracking furnace 7 through the air duct 6. By starting the high-temperature cracking furnace 7 to work, the waste gas can be treated at high temperature. When the air pressure of the waste gas inside the preheating bottle 401 is insufficient to inflate the airbag 506 and squeeze the baffle 504 to bend the rubber rod 507, the baffle 504 will block the air inlet hole, so that the waste gas cannot enter the high-temperature cracking furnace 7. Thus, the high-temperature cracking furnace 7 can better treat the waste gas inside the high-temperature cracking furnace 7, improving the treatment effect;

[0051] After the high-temperature cracking furnace 7 finishes treating the waste gas, the waste gas forms carbon dioxide and water, and then enters the waste heat recovery device 8 for heat recovery. The non-flammable waste gas will enter the adsorption box 901. The activated carbon in the adsorption box 901 filters and discharges the waste gas. At this time, by starting the motor 902 to work, the third rotating rod 903 is driven to rotate. The rotation of the third rotating rod 903 drives the stirring rod 904 to rotate, so that the activated carbon can be stirred for better filtration. At this time, by starting the water pump 12, the water in the water tank 11 can be transported into the copper pipe 13, and heat exchange can be carried out in cooperation with the preheating bottle 401, improving the working efficiency.

Claims

1. Industrial coating drying and curing waste gas treatment combustion preheating device, including waste gas pipe (1), buffer bottle (2), intake pipe (3), characterized in that, One end of the intake pipe (3) is provided with a cleaning mechanism (4), and the cleaning mechanism (4) includes a preheating bottle (401), a fixed bracket (402), a mounting bracket (403), a first rotating rod (404), and a spiral blade (405). The outer wall of the preheating bottle (401) is fixedly connected to the inner wall of the fixed bracket (402), the inner wall of the preheating bottle (401) is fixedly connected to both ends of the mounting bracket (403), the inner wall of the mounting bracket (403) is rotatably connected to the outer wall of the first rotating rod (404) through a bearing, the outer wall of the first rotating rod (404) is fixedly connected to the outer wall of the spiral blade (405), a fixed sleeve (406) is fixedly installed on the outer wall of the first rotating rod (404), a connecting rod (407) is fixedly installed on the outer wall of the fixed sleeve (406), and a cleaning brush (408) is fixedly installed at one end of the connecting rod (407); One end of the intake pipe (3) is provided with a blocking mechanism (5), and the blocking mechanism (5) includes a connecting sleeve (501), a fixing plate (502), a second rotating rod (503), a baffle plate (504), and a blocking plate (505). The outer wall of the connecting sleeve (501) is fixedly connected to one end of the fixing plate (502), the inner wall of the fixing plate (502) is rotatably connected to the outer wall of the second rotating rod (503) through a second bearing, and one end of the second rotating rod (503) is fixedly connected to one side of the baffle plate (504).

2. The combustion preheating device for industrial coating drying and curing waste gas treatment according to claim 1, characterized in that, One side of the blocking plate (505) is fixedly connected to the inner wall of the preheating bottle (401), an airbag (506) is fixedly installed on the inner wall of the blocking plate (505), and a rubber rod (507) is fixedly installed on the inner wall of the blocking plate (505).

3. The combustion preheating device for industrial painting drying and curing waste gas treatment according to claim 1, characterized in that, One end of the intake pipe (3) is provided with a stirring mechanism (9), and the stirring mechanism (9) includes an adsorption box (901), a motor (902), a third rotating rod (903), and a stirring rod (904). The top of the adsorption box (901) is fixedly connected to the bottom of the motor (902), the output end of the motor (902) is fixedly connected to the top of the third rotating rod (903), and the outer wall of the third rotating rod (903) is fixedly connected to one end of the stirring rod (904).

4. The combustion preheating device for treating industrial painting drying and curing waste gas according to claim 1, characterized in that, The number of the fixed brackets (402) is two, the fixed brackets (402) are symmetrically distributed on the outer wall of the preheating bottle (401) respectively, the number of the mounting brackets (403) is two, and the mounting brackets (403) are symmetrically distributed on the outer wall of the first rotating rod (404) respectively.

5. The combustion preheating device for industrial painting drying and curing waste gas treatment according to claim 1, characterized in that, The number of the spiral blades (405) is two, the spiral blades (405) are symmetrically distributed on the outer wall of the first rotating rod (404) respectively, the number of the connecting rods (407) is six, the connecting rods (407) are symmetrically distributed on the outer wall of the fixed sleeve (406) respectively, the number of the cleaning brushes (408) is two, and the cleaning brushes (408) are symmetrically distributed at one end of the six connecting rods (407) respectively.

6. The combustion preheating device for industrial painting drying and curing waste gas treatment according to claim 2, characterized in that, The baffle (504) is in a sector shape. The number of air bags (506) is two, and the air bags (506) are symmetrically distributed on the inner wall of the blocking plate (505). The number of rubber rods (507) is two, and the rubber rods (507) are symmetrically distributed on the inner wall of the blocking plate (505).

7. The combustion preheating device for industrial painting drying and curing waste gas treatment according to claim 2, characterized in that, One side of the blocking plate (505) is provided with a ventilation opening, and one side of the blocking plate (505) is provided with an air inlet hole.

8. The combustion preheating device for industrial painting drying and curing waste gas treatment according to claim 3, characterized in that, The number of stirring rods (904) is ten, and the stirring rods (904) are symmetrically distributed on the outer wall of the rotating rod three (903). An air outlet hole is provided at the top of the adsorption box (901), and a movable door is installed on the front of the adsorption box (901).

9. The combustion preheating device for industrial painting drying and curing waste gas treatment according to claim 1, characterized in that, One end of the waste gas pipe (1) is communicated with one end of the buffer bottle (2), the other end of the buffer bottle (2) is communicated with one end of the intake pipe (3), the other end of the intake pipe (3) is communicated with one end of the preheating bottle (401), the other end of the preheating bottle (401) is communicated with one end of the guide pipe (6), the other end of the guide pipe (6) is communicated with the top of the high-temperature cracking furnace (7), and one side of the high-temperature cracking furnace (7) is communicated with one side of the waste heat recovery device (8).

10. The combustion preheating device for industrial painting drying and curing waste gas treatment according to claim 9, characterized in that, The other side of the waste heat recovery device (8) is communicated with one side of the adsorption box (901). A copper pipe (13) is arranged on the outer wall of the preheating bottle (401). One end of the copper pipe (13) is communicated with one end of the connecting pipe (10), the other end of the copper pipe (13) is communicated with one end of the water pump (12), the other end of the water pump (12) is communicated with one side of the water tank (11), and the other side of the water tank (11) is communicated with one end of the connecting pipe (10).

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