Boiler waste gas treatment device for environmental protection

[0019] Example 1

[0020] Reference Figure 1-2 , A boiler waste gas treatment device for environmental protection, comprising a water tank 1, a shell 7 is welded to the top of the water tank 1, and an exhaust fan 6 is connected to the top of the shell 7 by bolts. The air outlet of the exhaust fan 6 is connected with an exhaust fan through a flange. The air pipe 5, the side of the water tank 1 is welded with an air inlet pipe 12, and the air inlet pipe 12 is located inside the water tank 1 with a heat exchange coil 10 at one end, a vertical pipe 8 is welded at the junction of the water tank 1 and the housing 7, and the vertical pipe 8 The bottom end of the heat exchange coil 10 is welded to the nozzle of the heat exchange coil 10, the inner top of the shell 7 is connected with a mounting frame 4 by bolts, and the bottom end of the mounting frame 4 is connected with a multi-layer dust filter bag 3 by screws, and both sides of the water tank 1 The hot water exchange pipes 11 are respectively connected by bolts. When in use, the boiler flue gas is connected to the intake pipe 12, and the cold water inside the water tank 1 is used for effective heat exchange and cooling of the boiler flue gas, and the heat of the flue gas is recovered Utilize and save thermal energy resources. The cooled flue gas enters the inside of the casing 7, and the multi-layer dust filter net 3 is used to fully remove the flue gas. The treated flue gas is discharged through the exhaust fan 6 and the exhaust pipe 5. , Easy to use.

[0021] In the present invention, a plurality of heat exchange fins 9 are welded on the surface of the heat exchange coil 10, and the heat exchange fins 9 are arranged obliquely, and the surface of the heat exchange coil 10 is welded with a plurality of heat exchange fins 9 arranged obliquely. The heat exchange area of ​​the water inside the water tank 1 enhances the flue gas cooling effect, and at the same time, the drainage effect of the heat exchange fins 9 during the flow of water generates multiple vortices inside the water tank 1 to further enhance the heat exchange effect;

[0022] Both sides of the housing 7 are provided with rectangular through grooves, and the insides of the two rectangular through grooves are connected with a dust collecting box 2 through a snap lock. The dust of the filter part through the filter dust net bag 3 falls into the two through the action of gravity. A dust box 2 is collected inside. When the boiler is stopped, the dust box 2 can be taken out for cleaning, which is simple and convenient to use and brings great convenience to users;

[0023] The outer side of the water tank 1 is connected with an insulation shell 13 by screws, and the water tank 1 is wrapped by the insulation shell 13, which reduces the heat loss during the heat exchange process of the water tank 1 and improves the heat utilization efficiency;

[0024] The side of the casing 7 is provided with an inspection window, and the surface of the inspection window is connected with a sealing plate by bolts, and the inspection window is arranged to facilitate the cleaning of the dust filter net pocket 3 by the staff.

[0025] Working principle: When in use, the boiler flue gas is connected to the intake pipe 12, and the cold water inside the water tank 1 is used to effectively exchange and cool the boiler flue gas, and the heat of the flue gas is recycled, saving heat resources and cooling After the flue gas enters the inside of the housing 7, the multi-layer dust filter net 3 is used to fully remove the flue gas. The treated flue gas is discharged through the exhaust fan 6 and the exhaust pipe 5, which is simple and convenient to use; The surface of the coil 10 is welded with a number of inclined heat exchange fins 9 to increase the heat exchange area with the water inside the water tank 1 and enhance the flue gas cooling effect. At the same time, the water flows through the heat exchange fins 9 during the drainage process , Multiple eddy currents are generated inside the water tank 1 to further enhance the heat exchange effect.

[0026] Example 2

[0027] Reference figure 1 with image 3 , An environmental protection boiler exhaust gas treatment device, further, the inner wall of the shell 7 is welded with a plurality of support blocks, and the mounting frame 4 is installed above the support block through a spring;

[0028] The top of the mounting frame 4 is connected with a movable rod 14 through springs and bolts, and both ends of the bottom of the movable rod 14 are connected with percussion blocks through bolts, and wind plates 15 are welded on both sides of the movable rod 14.

[0029] Working principle: Compared with Embodiment 1, the mounting frame 4 is installed on the housing 7 through springs and supporting blocks, and the movable rod 14 and the percussion block are installed on the top of the mounting frame 4 through springs. When flowing through the suction effect of the exhaust fan 6, the air flow drives the movable rod 14 to swing through the air plate 15, and then uses the knocking block to hit the mounting frame 4 to generate vibrations, and the dust attached to the surface of the dust filter bag 3 falls into the dust box 2 Inside, extend the life cycle of the dust filter net bag 3.