A dynamic wave scrubber

Abstract

The present invention discloses a dynamic wave scrubber, which relates to the technical field of dynamic wave scrubbing. The dynamic wave scrubber includes a reverse nozzle and an overflow weir and a transition section connected to the reverse nozzle. The overflow weir includes a liquid inlet channel. The medium flow direction of the liquid inlet channel is tangential to the overflow weir. The medium passing into the overflow weir includes the filtered dirty acid in the reverse nozzle. The transition section includes a shielding portion. Along the radial direction of the overflow weir, the projection of the outlet of the overflow weir at the shielding portion at least partially overlaps. The projection of the outlet of the overflow weir at the shielding portion at least partially overlaps, so that the shielding portion can block the outlet of the overflow weir, reducing the risk of the flue gas in the reverse nozzle entering the overflow weir. The medium flow direction of the liquid inlet channel is tangential to the overflow weir, so that the medium can be turbulent in the overflow weir, reducing the risk of impurities in the overflow weir settling and accumulating.

Description

Technical Field

[0001] The invention relates to the technical field of power wave washing, in particular to a power wave washing device. Background Art

[0002] The smelting flue gas purification process in the acid-making industry often uses dynamic wave scrubbing technology to cool and remove dust from high-temperature flue gases. Dynamic wave scrubbing equipment primarily consists of a transition section, overflow weir, reverse nozzle, and straight pipe section. The high-temperature flue gas and scrubbing liquid collide and fully contact in the reverse nozzle of the dynamic wave scrubber, completing the gas-liquid mass and heat transfer process, thereby cooling and removing dust from the flue gas.

[0003] The overflow weir is a component that protects the reverse nozzle. The medium in the overflow weir flows into the reverse nozzle through the outlet of the overflow weir, and then forms a uniform liquid film on the inner wall of the reverse nozzle, thereby preventing high-temperature flue gas from directly contacting the inner wall of the reverse nozzle, and preventing the reverse nozzle from corrosion in overheating and dilute acid environments.

[0004] During the operation of the power washing equipment, impurities in the flue gas enter the overflow weir and impurities in the medium entering the overflow weir are precipitated in the overflow weir, which may cause the overflow weir to be blocked and the overflow weir to fail to work normally. If impurities accumulate at the outlet of the overflow weir, it may also cause uneven liquid discharge from the overflow weir. Therefore, reducing the amount of impurities in the overflow weir is a technical problem that needs to be solved urgently. Summary of the Invention

[0005] The object of the present invention is to provide a dynamic wave scrubber which can reduce the amount of impurities in the overflow weir.

[0006] To achieve the aforementioned objectives, the present invention employs the following technical solutions: The present embodiment provides a dynamic wave scrubber comprising a reverse jet pipe, an overflow weir connected to the reverse jet pipe, and a transition section. The overflow weir includes a liquid inlet channel, the medium flowing through the liquid inlet channel being tangential to the overflow weir, and the medium entering the overflow weir comprises filtered contaminated acid from the reverse jet pipe. The transition section includes a shielding portion, wherein the projection of the overflow weir outlet at least partially overlaps the shielding portion in a radial direction of the overflow weir.

[0007] In some embodiments, a projection of the outlet of the overflow weir on the shielding portion is completely located within the shielding portion.

[0008] In some embodiments, the distance between the shielding portion and the outlet of the overflow weir is L, satisfying L>0.

[0009] In some embodiments, the wall surface of the shielding portion away from the overflow weir is in a frustum-shaped structure, and the large diameter side of the frustum-shaped structure faces the reverse nozzle.

[0010] In some embodiments, the angle between the side wall surface of the shielding portion and the horizontal plane is α, satisfying α<45°.

[0011] In some embodiments, the transition section also includes a medium channel and a first elastic member, the shielding portion is partially inserted at the outlet end of the medium channel, the medium is passed into the medium channel to push the shielding portion to move, so that the shielding portion closes the outlet of the overflow weir, and the first elastic member connects the shielding portion and the transition section.

[0012] In some embodiments, a plurality of accommodating cavities are provided on the wall of the shielding portion away from the overflow weir, and the inlets of the accommodating cavities are inclined toward the side of the reverse nozzle away from the overflow weir.

[0013] In some embodiments, the shielding portion includes a first ring body, a second ring body and a second elastic member. The first ring body is sleeved on the side wall of the second ring body, the accommodating cavity is set in the second ring body, the second elastic member is connected to the first ring body and the second ring body, and the accommodating cavity is provided with a connecting section. The connecting section passes through the side wall surface of the second ring body facing the first ring body, and the first ring body is provided with a connecting channel corresponding to the connecting section. The connecting channel is configured so that when the shielding portion does not close the outlet of the overflow weir, the connecting channel is misaligned with the connecting section, and when the shielding portion closes the outlet of the overflow weir, the connecting channel is connected to the connecting section.

[0014] In some embodiments, the overflow weir is further provided with a sewage discharge channel, and the sewage discharge channel is provided with a valve.

[0015] In some embodiments, the valve is an automatic valve.

[0016] The present invention has the following beneficial effects:

[0017] 1. The projection of the overflow weir outlet at least partially overlaps with the shielding portion, so that the shielding portion can block the overflow weir outlet, reducing the risk of flue gas in the reverse nozzle entering the overflow weir, thereby reducing the amount of impurities in the overflow weir.

[0018] 2. The medium flow direction of the liquid inlet channel is tangential to the overflow weir, which allows the medium to flow turbulently in the overflow weir, reducing the risk of impurities settling and accumulating in the overflow weir.

[0019] 3. The shielding part is movably arranged at the transition section. The shielding part can close the outlet of the overflow weir, which is convenient for backwashing the overflow weir and reduces the risk of blockage of the overflow weir. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of the arrangement of the shielding portion of the present invention (the shielding portion is in the shape of a truncated cone);

[0021] Figure 2 for Figure 1 A magnified view of point A;

[0022] Figure 3 Schematic diagram of the arrangement of the shielding portion of the present invention (the side wall of the shielding portion away from the overflow weir is in the shape of a frustum);

[0023] Figure 4 It is a structural schematic diagram of the overflow weir in a closed state of the present invention;

[0024] Figure 5 for Figure 4 Enlarged view of point B;

[0025] Figure 6 This is a schematic structural diagram of the overflow weir in the open state of the present invention;

[0026] Figure 7 for Figure 6 Enlarged view of point C.

[0027] Figure numbers: 1-reverse spray pipe, 2-transition section, 3-overflow weir, 4-liquid inlet channel, 5-sewage discharge channel, 6-valve, 7-shielding portion, 8-medium channel, 9-first ring body, 10-second ring body, 11-first elastic member, 12-second elastic member, 13-accommodating chamber, 14-connecting section, 15-connecting channel. DETAILED DESCRIPTION

[0028] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the invention. Obviously, the embodiments described are only part of the embodiments of the invention, not all of them. Unless otherwise specified, the technical means used in the embodiments are conventional means well known to those skilled in the art.

[0029] In the description of the invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" and the like to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the invention.

[0030] See also Figure 1 The present invention provides a dynamic wave scrubber comprising a reverse jet pipe 1, an overflow weir 3 connected to the reverse jet pipe 1, and a transition section 2. The overflow weir 3 includes a liquid inlet channel 4. The medium in the liquid inlet channel 4 flows tangentially to the overflow weir 3. The medium entering the overflow weir 3 includes the filtered waste acid in the reverse jet pipe 1. The transition section 2 includes a shielding portion 7. Along the radial direction of the overflow weir 3, the projection of the overflow weir 3 outlet on the shielding portion 7 at least partially overlaps.

[0031] The liquid inlet channel 4 is used to introduce the medium into the overflow weir 3 .

[0032] The medium flow direction of the liquid inlet channel 4 refers to the flow direction of the medium when it is discharged from the liquid inlet channel 4.

[0033] The medium flows in a tangential direction to the overflow weir 3 , so that the medium can flow in the overflow weir 3 , thereby reducing the risk of impurities in the overflow weir 3 settling and accumulating.

[0034] The dirty acid is filtered and then passed into the overflow weir 3 , which reduces the amount of impurities contained in the medium passing into the overflow weir 3 , thereby reducing the risk of the overflow weir 3 being blocked.

[0035] The shielding portion 7 may be connected to the transition section 2 , or the shielding portion 7 may be directly formed on the transition section 2 . For example, the shielding portion 7 may be formed by the inner lining alloy flange of the transition section 2 .

[0036] Along the radial direction of the overflow weir 3, the projection of the outlet of the overflow weir 3 on the shielding portion 7 at least partially overlaps, so that the shielding portion 7 can block the outlet of the overflow weir 3, reducing the risk of flue gas in the reverse nozzle 1 entering the overflow weir 3, thereby reducing the amount of impurities in the overflow weir 3. For example, if the axial direction of the overflow weir 3 extends in the vertical direction, then the shielding portion 7 and the outlet of the overflow weir 3 are arranged relative to each other in the horizontal direction, so that the shielding portion 7 can block the outlet of the overflow weir 3.

[0037] In some embodiments, a projection of the outlet of the overflow weir 3 on the shielding portion 7 is completely located within the shielding portion 7 .

[0038] The projection of the outlet of the overflow weir 3 on the shielding portion 7 is completely located within the shielding portion 7 , which increases the shielding area of ​​the shielding portion 7 and further reduces the risk of impurities in the flue gas entering the shielding portion 7 .

[0039] See also Figure 2 In some embodiments, the distance between the shielding portion 7 and the outlet of the overflow weir 3 is L, and L>10 mm.

[0040] The distance between the shielding portion 7 and the outlet of the overflow weir 3 is the distance from the shielding portion 7 to the overflow weir 3 along the radial direction of the overflow weir 3 .

[0041] The shielding portion 7 is at a certain distance from the outlet of the overflow weir 3 , so that the shielding portion 7 does not block the normal drainage of the overflow weir 3 .

[0042] See also Figure 1 and Figure 3 In some embodiments, the wall surface of the shielding portion 7 away from the overflow weir 3 is in a frustum-shaped structure, and the large diameter side of the frustum-shaped structure faces the reverse nozzle 1.

[0043] The wall surface of the shielding portion 7 away from the overflow weir 3 may be an inner wall surface of the shielding portion 7 .

[0044] The shielding portion 7 may be a frustum-shaped structure as a whole, or only the wall of the shielding portion 7 away from the overflow weir 3 may be a frustum-shaped structure.

[0045] The wall surface of the shielding portion 7 away from the overflow weir 3 is in a frustum-shaped structure, so that the wall surface of the shielding portion 7 away from the overflow weir 3 is in an inclined structure. When impurities in the flue gas hit the wall surface of the shielding portion 7 away from the overflow weir 3, the impurities can move to the impurity removal area in the reverse nozzle 1, thereby increasing the impurity removal effect of the reverse nozzle 1 on the flue gas. The impurity removal process of the reverse nozzle 1 is well known to those skilled in the art and will not be repeated here.

[0046] See also Figure 3 In some embodiments, the angle between the side wall of the shielding portion 7 and the horizontal plane is α, satisfying α<45°.

[0047] The angle α between the side wall surface of the shielding portion 7 and the horizontal plane refers to the angle between the axial cross section of the shielding portion 7 and the horizontal plane.

[0048] If the angle α is ≥45°, the impurities hitting the shielding part 7 are subjected to a smaller component of force along the axial direction of the reverse nozzle 1, which is not conducive to the impurities moving into the reverse nozzle 1. When the angle α is less than 45°, the impurities hitting the shielding part 7 are subjected to an increased component of force along the axial direction of the reverse nozzle 1, making it easier for the impurities to move to the impurity removal area in the reverse nozzle 1.

[0049] See also Figure 4-Figure 7 In some embodiments, the transition section 2 further includes a medium channel 8 and a first elastic member 11, the shielding portion 7 is partially inserted at the outlet end of the medium channel 8, and a medium is passed into the medium channel 8 to push the shielding portion 7 to move, so that the shielding portion 7 closes the outlet of the overflow weir 3, and the first elastic member 11 connects the shielding portion 7 and the transition section 2.

[0050] The shielding portion 7 is partially inserted into the outlet end of the medium channel 8 so that the shielding portion 7 can move relative to the medium channel 8 .

[0051] The medium channel 8 is used to drive the shielding portion 7 to move. Specifically, when the medium is introduced into the medium channel 8 , as the hydraulic pressure in the medium channel 8 increases, the shielding portion 7 is pushed out of the medium channel 8 .

[0052] The first elastic member 11 is used to provide elastic force to move the shielding portion 7 into the medium channel 8. That is, when the shielding portion 7 is pushed to move out of the medium channel 8, the first elastic member 11 is in a stretched state. The first elastic member 11 can be a spring.

[0053] By reasonably setting the position of the shielding portion 7 relative to the overflow weir 3, when the shielding portion 7 moves a certain distance, the shielding portion 7 can close the outlet of the overflow weir 3. For example, the shielding portion 7 can be set above the outlet of the overflow weir 3. When the shielding portion 7 moves downward a certain distance, the shielding portion 7 can abut against the outlet wall of the overflow weir 3, so that the outlet of the overflow weir 3 can be closed.

[0054] Closing the outlet of the overflow weir 3 facilitates backwashing of the interior of the overflow weir 3 to remove impurities in the overflow weir 3. For example, the overflow weir 3 may also include a sewage discharge channel 5, which is used to discharge impurities in the overflow weir 3. During backwashing, a sewage discharge medium is introduced into the overflow weir 3 through the sewage discharge channel 5, and the impurities in the overflow weir 3 can be discharged through the liquid inlet channel 4, thereby realizing backwashing of the interior of the overflow weir 3 and reducing the risk of blockage of the overflow weir 3.

[0055] See also Figure 5 and Figure 7 In some embodiments, a plurality of accommodating cavities 13 are provided on the wall of the shielding portion 7 away from the overflow weir 3 , and the inlets of the accommodating cavities 13 are inclined toward the side of the reverse spray pipe 1 away from the overflow weir 3 .

[0056] On the one hand, the accommodating chamber 13 can accommodate some impurities in the flue gas and reduce the amount of impurities in the flue gas. On the other hand, the entrance of the accommodating chamber 13 is inclined toward the side of the reverse nozzle 1 away from the overflow weir 3, so that the accommodating chamber 13 can adjust the movement direction of the impurities after they hit the wall of the shielding part 7 away from the overflow weir 3, so that the impurities can move to the impurity removal area of ​​the reverse nozzle 1.

[0057] In the embodiment of the present application, the bottom surface of the accommodating cavity 13 away from the entrance can be a spherical surface, which is convenient for adjusting the reverse movement direction of the impurities.

[0058] See also Figure 5 and Figure 7 In some embodiments, the shielding portion 7 includes a first ring body 9, a second ring body 10 and a second elastic member 12. The first ring body 9 is sleeved on the side wall of the second ring body 10, and an accommodating cavity 13 is provided in the second ring body 10. The second elastic member 12 is connected to the first ring body 9 and the second ring body 10. The accommodating cavity 13 is provided with a connecting section 14. The connecting section 14 passes through the side wall surface of the second ring body 10 facing the first ring body 9. The first ring body 9 is provided with a connecting channel 15 corresponding to the connecting section 14. The connecting channel 15 is configured so that when the shielding portion 7 does not close the outlet of the overflow weir 3, the connecting channel 15 is misaligned with the connecting section 14. When the shielding portion 7 closes the outlet of the overflow weir 3, the connecting channel 15 is connected to the connecting section 14.

[0059] The accommodating cavity 13 may be provided on the inner wall surface of the second ring body 10 .

[0060] The second elastic member 12 can provide elastic force to restore the first ring body 9 and the second ring body 10 . The second elastic member 12 can be a spring.

[0061] The connecting section 14 and the connecting channel 15 cooperate to enable the accommodating chamber 13 to be connected to the interior of the overflow weir 3. When the accommodating chamber 13 and the overflow weir 3 are connected, the shielding portion 7 is in a state of closing the outlet of the overflow weir 3, so that during the backwash cleaning of the overflow weir 3, part of the cleaning medium can enter the accommodating chamber 13 from the connecting channel 15, so that impurities accumulated inside the accommodating chamber 13 can be flushed out, thereby achieving cleaning of the interior of the accommodating chamber 13.

[0062] When the connecting channel 15 is misaligned with the connecting section 14, the first ring body 9 can protrude from the second ring body 10. When the shielding portion 7 closes the outlet of the overflow weir 3, the first ring body 9 first contacts the overflow weir 3, and the first ring body 9 is pushed to move. At this time, the second elastic member 12 is compressed until the second ring body 10 abuts against the overflow weir 3, so that the shielding portion 7 closes the outlet of the overflow weir 3, and the connecting channel 15 and the connecting section 14 are connected.

[0063] See also Figure 1 In some embodiments, the overflow weir 3 is further provided with a sewage discharge channel 5 , and the sewage discharge channel 5 is provided with a valve 6 .

[0064] The sewage discharge channel 5 is used to discharge impurities and media in the overflow weir 3 .

[0065] The sewage discharge channel 5 can be communicated with the bottom wall of the overflow weir 3.

[0066] By arranging the valve 6 on the sewage channel 5, it is convenient to close the sewage channel 5 when necessary.

[0067] In some embodiments, valve 6 is an automatic valve.

[0068] The automatic valve can be a suitable product selected from the existing technology. Its structure and working principle are well known to those skilled in the art and will not be described in detail here.

[0069] The automatic valve facilitates intelligent control of the working state of the valve 6. For example, the automatic valve can have a timing function, so that the sewage channel 5 can be opened and closed at a fixed time, which facilitates the timing of sewage discharge from the overflow weir 3 and reduces the risk of blockage of the overflow weir 3.

[0070] The above embodiments are merely descriptions of preferred embodiments of the invention and are not intended to limit the scope of the invention. Without departing from the spirit of the invention, various deformations, modifications, and substitutions of the technical solutions of the invention made by ordinary technicians in this field should fall within the scope of protection determined by the claims of the invention.

Claims

1. A dynamic wave scrubber comprising a reverse spray pipe (1) and an overflow weir (3) and a transition section (2) connected to the reverse spray pipe (1), characterized in that: The overflow weir (3) includes a liquid inlet channel (4), the medium of the liquid inlet channel (4) flows in a tangential direction to the overflow weir (3), and the medium flowing into the overflow weir (3) includes the filtered dirty acid in the reverse spray pipe (1); The transition section (2) comprises a shielding portion (7), and along the radial direction of the overflow weir (3), a projection of the outlet of the overflow weir (3) on the shielding portion (7) at least partially overlaps; The transition section (2) further comprises a medium channel (8) and a first elastic member (11); the shielding portion (7) is partially inserted into the outlet end of the medium channel (8); a medium is introduced into the medium channel (8) to push the shielding portion (7) to move, so that the shielding portion (7) closes the outlet of the overflow weir (3); the first elastic member (11) connects the shielding portion (7) and the transition section (2); A plurality of accommodating cavities (13) are provided on a wall surface of the shielding portion (7) away from the overflow weir (3), and the inlets of the accommodating cavities (13) are inclined toward a side of the reverse spray pipe (1) away from the overflow weir (3); The shielding portion (7) comprises a first ring body (9), a second ring body (10) and a second elastic member (12); the first ring body (9) is sleeved on the side wall of the second ring body (10); the accommodating cavity (13) is arranged on the second ring body (10); the second elastic member (12) is connected to the first ring body (9) and the second ring body (10); the accommodating cavity (13) is provided with a connecting section (14); the connecting section (14) passes through the side wall surface of the second ring body (10) facing the first ring body (9); the first ring body (9) is provided with a connecting channel (15) corresponding to the connecting section (14); the connecting channel (15) is configured such that when the shielding portion (7) does not close the outlet of the overflow weir (3), the connecting channel (15) is misaligned with the connecting section (14); when the shielding portion (7) closes the outlet of the overflow weir (3), the connecting channel (15) is connected with the connecting section (14).

2. A dynamic wave scrubber according to claim 1, characterized in that: The projection of the outlet of the overflow weir (3) on the shielding portion (7) is completely located within the shielding portion (7).

3. A dynamic wave scrubber according to claim 1, characterized in that: The overflow weir (3) is further provided with a sewage discharge channel (5), and the sewage discharge channel (5) is provided with a valve (6).

4. A dynamic wave scrubber according to claim 3, characterized in that: The valve (6) is an automatic valve.

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