Smoke collecting device for paste blanking port

Abstract

The utility model provides a smoke collecting device for a paste blanking port, which is arranged at the lower end of the paste blanking port for vertically and downwards flowing paste, the upward view of the blanking port is rectangular, and one side surface of the blanking port is provided with a rectangular notch; the device is provided with a flue gas guiding device with an n-shaped cross section and a flue gas leading-out pipe fitting, the upper edge of the rectangular notch is seamlessly welded with the upper wall surface of the flue gas guiding device, the rear end of the guiding device is connected with the front end of the flue gas leading-out pipe fitting, the rear end of the flue gas leading-out pipe fitting is connected with a flue gas outlet pipe through a rectangular flange sheet, and the flue gas outlet pipe is connected with an exhaust fan. Most of hot smoke in paste can be guided through the smoke guiding device and is absorbed to the smoke outlet pipe through the suction fan, so that most of the hot smoke cannot be directly dissipated into air in a workshop; and meanwhile, the power consumption of the exhaust fan can be reduced.

Description

Technical Field

[0001] The utility model relates to a smoke drainage component. Background Art

[0002] Chemical companies often emit flue gas or exhaust during production. To meet environmental protection requirements, flue gas must be collected to prevent it from being directly discharged or lost to the workshop environment. The flue gas is then transported through outlet pipes for purification. The power source for the flue gas collection device is primarily an exhaust fan.

[0003] However, if the structure of the smoke collection device is unreasonable, it will cause partial leakage of smoke or increase the power consumption of the exhaust fan. Summary of the Invention

[0004] Purpose of the utility model:

[0005] Provided is a fume collecting device for a paste discharge port, which can be connected to the lower end of a paste outlet, reduces fume loss, and has low energy consumption.

[0006] Technical solution:

[0007] The utility model discloses a fume collection device for a paste drop outlet. The device is installed at the lower end of the drop outlet, where the paste (a mixture of solids, liquids, and gases, where the solids and liquids fall vertically, a small amount of gas follows and mixes with it, and the majority overflows and disperses) flows downward, and before the fume exhaust pipe. The drop outlet is rectangular when viewed from above, and its upper end can be connected to a rectangular or quadrangular pyramid-shaped funnel. The upper side of the funnel has a sealed cover (or a sealed kneading barrel from a kneading machine), preventing fumes from being discharged from above. A gate valve, which can be pulled open and closed, is located between the upper end of the drop outlet and the funnel to control the paste drop process.

[0008] The smoke collection device comprises a smoke guide device having an N-shaped cross-section (a cross-section perpendicular to the direction of smoke flow) and a smoke outlet pipe fitting having a rectangular cross-section; a side surface of the blanking opening comprises a rectangular notch, the upper edge of the rectangular notch being at the same height as the front end of the upper wall of the smoke guide device (preferably arranged horizontally), and the front end of the smoke guide device is seamlessly connected to the upper edge of the rectangular notch (e.g., welded), and the front ends of the left and right walls of the smoke guide device are seamlessly connected to the left and right edges of the rectangular notch, respectively; and the rear end of the smoke guide device is connected to the front end of the smoke outlet pipe fitting.

[0009] The cross section of the flue gas outlet pipe fitting is rectangular, the width of the flue gas outlet pipe fitting is the same as the width of the flue gas guide device, the upper wall of the flue gas outlet pipe fitting is at the same height as the upper wall of the flue gas guide device, and the lower wall of the flue gas outlet pipe fitting is higher than the lower edge of the n-shape (which is more conducive to the hot flue gas flowing sideways and upwards) or is at the same height.

[0010] The rear end of the flue gas outlet pipe is connected to a rectangular or circular flue gas outlet pipe through a rectangular flange. The flue gas outlet pipe is connected to an exhaust fan (a rectangular exhaust fan is used on the rectangular outlet pipe) to forcibly adsorb the flue gas, making it easier for the flue gas to be guided to the flue gas outlet pipe through the flue gas guide device, and then the flue gas is guided to the flue gas outlet pipe for subsequent purification treatment to remove harmful gases and dust.

[0011] The outer peripheral frame of the flange is larger than the pipe opening size of the smoke outlet pipe fitting, and the inner peripheral frame of the flange is basically the same as the pipe opening size of the smoke outlet pipe fitting; the diameter of the pipe connected to the smoke outlet pipe is larger than the size of the inner peripheral frame of the flange and smaller than the size of the outer peripheral frame of the flange.

[0012] Beneficial effects:

[0013] The utility model has a compact structure and can guide most of the hot flue gas discharged from the paste through the flue gas guide device, and suck it into the flue gas outlet pipe through the exhaust fan, and finally discharge it into the atmosphere after subsequent purification treatment, thereby preventing most of the flue gas from being directly dissipated into the workshop air, and improving the environmental protection level of the workers' workshop environment.

[0014] Furthermore, due to the presence of the rectangular notch, the hot flue gas discharged from the paste discharge port has a tendency to automatically flow to one side, which can reduce the power consumption of the exhaust fan.

[0015] The utility model can have the dual functions of guiding and discharging the smoke, and does not affect the downward falling, collection and transportation process of solid and liquid substances in the materials while collecting the smoke. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of a connection structure of the utility model in use;

[0017] Figure 2 This is another schematic diagram of the connection structure of the utility model in use;

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of a smoke guide device of the present utility model.

[0019] In the figure, 1-smoke guide device; 2-notch; 3-smoke outlet pipe; 4-flange; 5-smoke outlet pipe; 6-exhaust fan; 9-gate valve; 10-sealing cover; 11-funnel; 13-feeding port; 15-rectangular outlet pipe; 16-rectangular exhaust fan; 20-upper wall; 21-front end; 22-lower edge; 23-rear end. DETAILED DESCRIPTION

[0020] Example 1:

[0021] like Figure 1The fume collecting device at the paste discharge port shown is arranged at the lower end of a rectangular discharge port 13 where the paste flows vertically downward. The upper end of the discharge port is connected to a quadrangular pyramid-shaped funnel 11, and the upper side of the funnel 11 has a sealed cover 10; the fume collecting device is composed of a fume guide device 1 and a fume outlet pipe.

[0022] The smoke guide device 1 is as follows Figure 3 As shown, its cross section is n-shaped; one side of the blanking port 13 has a rectangular notch 2, the upper edge of the rectangular notch 2 is at the same height as the front end of the upper wall of the smoke guide device 1 and is seamlessly connected, and the rear end of the guide device 1 is connected to the front end of the smoke outlet pipe 3.

[0023] The cross section of the smoke outlet pipe 3 is rectangular, the width of the smoke outlet pipe 3 is the same as the width of the smoke guide device 1, the upper wall of the smoke outlet pipe 3 is at the same height as the upper wall of the smoke guide device 1, and the lower wall of the smoke outlet pipe 3 is at the same height as the lower edge of the N-shape.

[0024] The rear end of the smoke outlet pipe 3 is connected to a circular smoke outlet pipe 5 through a rectangular flange 4 , and an exhaust fan 6 is connected to the smoke outlet pipe 5 .

[0025] Example 2:

[0026] like Figure 2 The fume collection device at the paste drop port shown is arranged at the lower end of the drop port 13 where the paste flows vertically downward. The drop port 13 is rectangular when viewed from above. The upper end of the drop port is connected to a quadrangular pyramid-shaped funnel 11. A gate valve 9 that can be opened and closed is provided between the drop port 13 and the funnel 11 to control the drop process of the paste.

[0027] It is composed of a smoke guide device 1 and a smoke outlet pipe. Figure 3 As shown, the cross section of the smoke guide device 1 is n-shaped; one side of the blanking port 13 has a rectangular notch 2, the upper edge of the rectangular notch 2 is at the same height as the front end of the upper wall of the smoke guide device 1 and is welded together, and the rear end of the guide device 1 is welded together with the front end of the smoke outlet pipe 3.

[0028] The cross-section of the smoke outlet pipe 3 is rectangular, the width of the smoke outlet pipe 3 is the same as the width of the smoke guide device 1, the upper wall of the smoke outlet pipe 3 is at the same height as the upper wall of the smoke guide device 1, and the lower wall of the smoke outlet pipe 3 is higher than the lower edge of the n-shape.

[0029] The rear end of the flue gas outlet pipe 3 is connected to a rectangular flue gas outlet pipe 15 via a rectangular flange 4 , and the flue gas outlet pipe 5 is subsequently connected to a rectangular exhaust fan 16 .

[0030] The outer peripheral frame of the flange 4 is larger than the pipe opening size of the smoke outlet pipe 3, and the inner peripheral frame of the flange 4 is the same as the pipe opening size of the smoke outlet pipe 3; the diameter of the rectangular air outlet pipe 15 is larger than the size of the inner peripheral frame of the flange 4 and smaller than the size of the outer peripheral frame of the flange 4.

Claims

1. A fume collecting device for a paste drop port, arranged at the lower end of a drop port (13) where the paste flows vertically downward, wherein the drop port (13) is rectangular in bottom view, and characterized in that: A smoke guide device (1) having an n-shaped cross section and a smoke outlet pipe (3) having a rectangular cross section; a side surface of the blanking port (13) having a rectangular notch (2); an upper edge of the rectangular notch (2) and a front end (21) of an upper wall (20) of the smoke guide device (1) being at the same height and seamlessly connected; the front ends of the left and right walls of the smoke guide device are seamlessly connected to the left and right edges of the rectangular notch (2) respectively; a rear end (23) of the guide device (1) is connected to the front end of the smoke outlet pipe (3); the width of the smoke outlet pipe (3) is the same as that of the smoke guide device (1); and the upper wall of the smoke outlet pipe (3) is at the same height as that of the upper wall of the smoke guide device (1).

2. The fume collection device for the paste discharge port according to claim 1, characterized in that: The lower wall surface of the smoke outlet pipe (3) is higher than the lower edge (22) of the guide device (1).

3. The fume collection device for the paste discharge port according to claim 1 or 2, characterized in that: The rear end of the smoke outlet pipe (3) is connected to a rectangular or circular smoke outlet pipe (5) via a rectangular flange (4), and the smoke outlet pipe (5) is connected to an exhaust fan (6).

4. The fume collection device for the paste discharge port according to claim 3, characterized in that: The outer peripheral frame of the flange (4) is larger than the size of the pipe opening of the smoke outlet pipe (3), and the size of the inner peripheral frame of the flange (4) is substantially the same as the size of the pipe opening of the smoke outlet pipe (3); the diameter of the pipe connected to the smoke outlet pipe (5) is larger than the size of the inner peripheral frame of the flange (4) and smaller than the size of the outer peripheral frame of the flange (4).

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