Quenching tower for reducing temperature of flue gas

Abstract

The invention discloses a quench tower for reducing flue gas temperature, and belongs to the field of quench towers. The device comprises a cleaning block slidably arranged in a quenching tower body, a filter screen is arranged in the cleaning block, meanwhile, a sliding cleaning rod and two bent rods are arranged on the surface of the cleaning block, the surface of the cleaning rod makes contact with the surface of the filter screen, the bent rods move in the cleaning block in a reciprocating mode through a reciprocating assembly, and the cleaning rod and the bent rods are detachably connected. Under the action of the reciprocating assembly and the bent rod, the cleaning rod can reciprocate on the surface of the filter screen to clean the surface of the filter screen, meanwhile, only the cleaning rod on the surface of the filter screen cleans or makes contact with ash residues, the bent rod or the driving rod driving the cleaning rod to move does not make contact with the ash residues, and it is guaranteed that the driving position of the structure does not adsorb the ash residues; and the whole cleaning block can slide out of the quench tower body, the cleaning rod can be selectively cleaned, excessive ash residues are prevented from being accumulated on the surface of the cleaning rod, and energy loss of a driving machine of the driving rod is prevented from being increased.

Description

Technical Field

[0001] This invention relates to the field of quench towers, and particularly to a quench tower for reducing flue gas temperature. Background Technology

[0002] A quench tower is an environmentally friendly device used to rapidly reduce the temperature of high-temperature flue gas. Its core function is to inhibit the formation of harmful substances such as dioxins through efficient cooling, while simultaneously removing acidic gases, pretreating particulate matter, and solidifying heavy metals.

[0003] The reference patent title is: A side-blown furnace flue gas quenching tower (patent publication number: CN223036908U). By setting up a filter plate and a scraper assembly, the filter plate filters the ash water generated by the combination of ash and liquid. Two winding rollers rotate in opposite directions. When one winding roller winds the traction wire, the other winding roller unwinds the traction wire, so that the scraper scrapes off the ash and slag at the upper end of the filter plate and resets, so as to prevent the ash and slag from accumulating on the filter plate and avoid clogging of the filter plate.

[0004] However, the following problems exist when implementing the above technical solutions: When the traction rope is pulled, part of it is exposed on the surface of the filter plate, and some dust may adhere to this position. The dust adhering to the surface of the traction rope will increase its roughness and increase the friction coefficient between the traction rope and the winding roller, requiring an increase in the power of the drive mechanism; at the same time, if there are hard particles in the dust, these particles may scratch the surface of the traction rope after adhering to the surface of the traction rope during the pulling or bending process, affecting its service life.

[0005] Therefore, the present invention proposes a quench tower for reducing flue gas temperature. Summary of the Invention

[0006] This invention provides a quench tower for reducing flue gas temperature, which can solve the problem in the prior art where, when ash and slag are scraped off the surface of the filter screen by an exposed traction guide scraper inside the quench tower, ash and slag adhere to the exposed traction rope, affecting the friction coefficient between the rope and the contact structure, and the ash and slag may damage the traction rope.

[0007] A quench tower for reducing flue gas temperature includes a quench tower body, a filter screen fixedly disposed inside the quench tower body, and a cleaning mechanism disposed between the quench tower body and the filter screen, the cleaning mechanism comprising: A cleaning block is slidably disposed inside the quench tower body. The cleaning block is fixedly connected to the quench tower body by a fixing component. The filter screen is fixedly disposed inside the cleaning block. Two bent rods are slidably connected inside the cleaning block. A cleaning rod that contacts the filter screen is fixedly disposed between the two bent rods. The cleaning rod is fixedly connected to the bent rod by a connecting component. A sealing ring is slidably connected to the surface of the bent rod. A drive rod is rotatably mounted inside the quench tower body, and a reciprocating assembly is provided between the drive rod and the bending rod.

[0008] Optionally, the fixing component includes a fixing block fixedly disposed on the surface of the quench tower body, a protruding rod fixedly connected to the surface of the fixing block, a protruding shaft fixedly connected to the surface of the cleaning block, and a fixing screw threadedly connected between the protruding rod and the protruding shaft.

[0009] Optionally, the protruding rod surface is provided with an inner groove, and the protruding shaft is adapted to the inner groove.

[0010] Optionally, a plurality of connecting rods are fixedly connected to the surface of the quench tower body. The connecting rods are fixedly connected to the fixing block, and the projection of the connecting rods toward the protruding rods is located on the surface of the recessed groove.

[0011] Optionally, the connecting assembly includes a connecting ring rotatably disposed at the end of the cleaning rod, the surface of the bent rod having an internal groove and a bending groove, the connecting ring being adapted to the internal groove, the internal groove communicating with the bending groove, and a connecting post being fixedly connected to the surface of the connecting ring, the connecting post being adapted to the bending groove.

[0012] Optionally, the cleaning rod has a C-shaped cross-section, and a fixing rod is threadedly connected between the connecting ring and the bending rod.

[0013] Optionally, the reciprocating assembly includes a drive ring fixedly disposed on the surface of the bent rod, a drive column fixedly connected to the surface of the drive ring, and a helical ring groove formed on the surface of the drive rod, the helical ring groove being adapted to the drive column.

[0014] Optionally, two collection boxes are slidably connected inside the cleaning block. The collection boxes are fixed to the cleaning block by screws. The two collection boxes are symmetrically arranged relative to the filter screen and are located on both sides of the cleaning rod.

[0015] Optionally, a cover is fixedly connected to the surface of the collection box, the cover has an arc-shaped groove, the projection edge of the cover toward the filter coincides with the edge of the filter, and an arc rod is fixedly connected to the surface of the cleaning block, the arc rod having an isosceles triangle cross-section.

[0016] Optionally, each of the sealing ring ends is fixedly connected to a movable shaft, the bent rod surface is provided with a movable groove, the movable groove is a semi-open groove, and the movable shaft is adapted to the movable groove; the cleaning block surface is provided with a sliding groove, the sliding groove is adapted to the sealing ring, the cleaning block surface is provided with a through groove, the through groove is adapted to the sealing ring, the through groove and the sliding groove are arranged perpendicularly in space, and the cleaning rod end is fixedly connected with a protruding ring, the protruding ring covering the sliding groove.

[0017] This invention provides a quench tower for reducing flue gas temperature, comprising a cleaning block slidably disposed inside the quench tower body, a filter screen disposed inside the cleaning block, and a sliding cleaning rod and two bending rods disposed on the surface of the cleaning block. The surface of the cleaning rod contacts the surface of the filter screen, and the bending rods reciprocate within the cleaning block via a reciprocating assembly. The cleaning rod and the bending rods are detachably connected, thereby allowing the cleaning rod to reciprocate on the filter screen surface under the action of the reciprocating assembly and the bending rods, cleaning the filter screen surface. Simultaneously, only the cleaning rod cleans or contacts ash on the filter screen surface, while the bending rods or driving rods that drive the cleaning rod do not contact the ash, ensuring that the driving position of the structure does not attract ash. Furthermore, the entire cleaning block can slide out of the quench tower body, enabling selective cleaning of the cleaning rod, avoiding excessive ash accumulation on the surface of the cleaning rod, and avoiding increased power of the driving mechanism of the driving rod. Attached Figure Description

[0018] Figure 1 A schematic diagram of a quench tower structure for reducing flue gas temperature is provided by the present invention; Figure 2 An exploded perspective view of the cleaning block provided by the present invention; Figure 3 An exploded perspective view of the drive rod provided by the present invention; Figure 4 An exploded perspective view of the bent rod provided by the present invention; Figure 5 Provided by the present invention Figure 4 Enlarged view of the local structure at point A; Figure 6 This is a three-dimensional structural cross-sectional view of the connecting ring provided by the present invention.

[0019] Explanation of reference numerals in the attached figures: 1. Quenching tower body; 2. Filter screen; 31. Cleaning block; 32. Bending rod; 33. Cleaning rod; 34. Sealing ring; 35. Drive rod; 41. Fixing block; 42. Protruding rod; 43. Protruding shaft; 44. Fixing screw; 45. Connecting rod; 51. Connecting ring; 52. Bending groove; 53. Connecting post; 54. Fixing rod; 61. Drive ring; 62. Drive column; 63. Spiral ring groove; 71. Collection box; 72. Cover; 73. Curved rod; 74. Moving groove; 75. Protruding ring. Detailed Implementation

[0020] The specific embodiments of the present invention will be described in detail below, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0021] like Figures 1 to 6 As shown in the figure, an embodiment of the present invention provides a quench tower for reducing flue gas temperature, comprising a quench tower body 1, a filter screen 2 fixedly disposed inside the quench tower body 1, and a cleaning mechanism disposed between the quench tower body 1 and the filter screen 2, the cleaning mechanism comprising: A cleaning block 31 is slidably disposed inside the quench tower body 1. The cleaning block 31 is fixedly connected to the quench tower body 1 by a fixing component. The filter screen 2 is fixedly disposed inside the cleaning block 31. Two bent rods 32 are slidably connected inside the cleaning block 31. A cleaning rod 33 is fixedly disposed between the two bent rods 32. The cleaning rod 33 contacts the filter screen 2. The cleaning rod 33 is fixedly connected to the bent rod 32 by a connecting component. A sealing ring 34 is slidably connected to the surface of the bent rod 32. A drive rod 35 is rotatably installed inside the quench tower body 1. A reciprocating assembly is provided between the drive rod 35 and the bending rod 32. The reciprocating assembly is used to drive the bending rod 32 to move back and forth inside the cleaning block 31. In summary, the quench tower for reducing flue gas temperature provided by the embodiments of the present invention includes a cleaning block 31 slidably disposed inside the quench tower body 1. A filter screen 2 is disposed inside the cleaning block 31. A sliding cleaning rod 33 and two bending rods 32 are disposed on the surface of the cleaning block 31. The surface of the cleaning rod 33 is in contact with the surface of the filter screen 2. The bending rods reciprocate within the cleaning block 31 via a reciprocating assembly. The cleaning rod 33 and the bending rods 32 are detachably connected. Under the action of the reciprocating assembly and the bending rods, the cleaning rod 33 can reciprocate on the surface of the filter screen 2 to clean the surface of the filter screen 2. At the same time, only the cleaning rod 33 cleans or contacts the ash on the surface of the filter screen 2. The bending rods 32 or driving rods 35 that drive the cleaning rod 33 do not contact the ash, ensuring that the driving position of the structure does not adsorb ash. Moreover, the entire cleaning block 31 can slide out of the quench tower body 1, which can selectively clean the cleaning rod 33, avoid excessive ash accumulation on the surface of the cleaning rod 33, and avoid increasing the power of the driving mechanism of the driving rod 35. In some specific embodiments, the fixing component includes a fixing block 41 fixedly disposed on the surface of the quench tower body 1. A protruding rod 42 is fixedly connected to the surface of the fixing block 41, and a protruding shaft 43 is fixedly connected to the surface of the cleaning block 31. A fixing screw 44 is threadedly connected between the protruding rod 42 and the protruding shaft 43. The fixing screw 44 can directly limit the position between the protruding rod 42 and the protruding shaft 43, and the position of the protruding rod 42 is fixed to the quench tower body 1, thereby limiting the position of the cleaning block 31. At the same time, the fixing block 41 can support the position of the cleaning block 31 when the cleaning block 31 slides, preventing the cleaning block 31 from changing its sliding trajectory under the action of gravity. In a further embodiment, the protruding rod 42 is provided with an inner groove, and the protruding shaft 43 is adapted to the inner groove. By providing the inner groove on the surface of the protruding rod 42, the position of the protruding shaft 43 on the surface of the protruding rod 42 is further restricted. When the protruding rod 42 contacts the protruding shaft 43, the protruding rod 42 is located outside the protruding shaft 43. At this time, the fixing screw 44 is inserted from the protruding rod 42 into the direction of the inner groove, which can quickly limit the movement of the protruding shaft 43. Moreover, there is no obstruction in the current operating direction of the fixing screw 44, which facilitates quick installation by the operator. In some specific implementations, a plurality of connecting rods 45 are fixedly connected to the surface of the quench tower body 1. The connecting rods 45 are fixedly connected to the fixing block 41, and the projection of the connecting rods 45 toward the protruding rod 42 is located on the surface of the recessed groove. The connecting rods 45 are provided to maintain the stable connection between the quench tower body 1 and the fixing block 41, and can limit the sliding distance of the protruding shaft 43 on the surface of the protruding block. A sealing ring (not shown in the figure) is provided between the cleaning block 31 and the quench tower body 1. In some specific implementations, the connecting assembly includes a connecting ring 51 rotatably disposed at the end of the cleaning rod 33. The surface of the bent rod 32 has an internal groove and a bending groove 52. The connecting ring 51 is adapted to the internal groove, and the internal groove communicates with the bending groove 52. A connecting post 53 is fixedly connected to the surface of the connecting ring 51, and the connecting post 53 is adapted to the bending groove 52. By aligning the connecting ring 51 with the internal groove, the connecting ring 51 can be inserted into the inside of the bent rod 32. The bending groove 52 is formed on the surface of the bent rod 32. The connecting post 53 is slid into the inside of the bending groove 52. After rotation, the sliding trajectory of the connecting post 53 can be restricted according to the shape of the bending groove 52, preventing the connecting ring 51 from disengaging from the bending groove 52. In a further embodiment, the cleaning rod 33 has a C-shaped cross-section, and a fixing rod 54 is threadedly connected between the connecting ring 51 and the bending rod 32. Inserting the fixing rod 54 between the connecting ring 51 and the bending rod 32 can limit the position of the connecting ring 51 inside the bending rod 32, thereby limiting the positions of the bending rod 32 and the cleaning rod 33. After the positions of the bending rods 32 at both ends of the cleaning rod 33 are limited, the cleaning rod 33 is difficult to rotate on its own, ensuring that the cleaning rod 33 is stable in position when it moves back and forth. In some specific implementations, the reciprocating assembly includes a drive ring 61 fixedly disposed on the surface of the bent rod 32, a drive column 62 fixedly connected to the surface of the drive ring 61, and a spiral ring groove 63 formed on the surface of the drive rod 35, the spiral ring groove 63 being adapted to the drive column 62; In a further embodiment, a motor is fixedly connected to the surface of the cleaning block 31, the end of the motor output shaft is fixedly connected to the drive rod 35, and the motor is electrically connected to an external power source; In some specific implementations, two collection boxes 71 are slidably connected inside the cleaning block 31. The collection boxes 71 are fixed to the cleaning block 31 by screws. The two collection boxes 71 are symmetrically arranged relative to the filter screen 2 and are located on both sides of the cleaning rod 33. In a further embodiment, a shielding cover 72 is fixedly connected to the surface of the collection box 71. The surface of the shielding cover 72 has an arc-shaped groove, and the projected edge of the shielding cover 72 facing the filter screen 2 coincides with the edge of the filter screen 2. The shielding cover 72 with the arc-shaped groove on the surface of the collection box 71 can guide the ash water falling inside the quench tower 1 to concentrate on the surface of the filter screen 2, preventing the ash water from directly entering the interior of the collection box 71. When the cleaning rod 33 slides to the edge of the filter screen 2, it can push the ash slag into the interior of the collection box 71 for convenient centralized treatment of the ash slag. In a further embodiment, an arc rod 73 is fixedly connected to the surface of the cleaning block 31. The cross-section of the arc rod 73 is an isosceles triangle. The arc rod 73 with the isosceles triangle shape on the surface of the cleaning block 31 can guide the movement of ash and slag on the surface of the cleaning block 31, so that the ash and slag can be separated from the cleaning block 31 and prevent the ash and slag from being adsorbed onto the surface of the cleaning block 31. In some specific implementations, each end of the sealing ring 34 is fixedly connected to a movable shaft, the surface of the bent rod 32 is provided with a movable groove 74, the movable groove 74 is a semi-open groove, and the movable shaft is adapted to the movable groove 74; the surface of the cleaning block 31 is provided with a through groove, and the through groove is adapted to the sealing ring 34; In a further embodiment, a sliding groove is formed on the surface of the cleaning block 31, the sliding groove is adapted to the sealing ring 34, the through groove and the sliding groove are arranged perpendicularly in space, and a protruding ring 75 is fixedly connected to the end of the cleaning rod 33, the protruding ring 75 covers the sliding groove; a sliding sealing ring 34 is set in the sliding path of the bent rod 32 to prevent ash or ash water from entering the interior of the cleaning block 31, and to prevent the surface of the drive rod 35 from being adhered to by ash or affected by ash water.

[0022] Working principle of the invention: When filtering ash and slag, the motor is started, and the ash water inside the quench tower 1 flows to the surface of the filter screen 2. Part of it contacts the shielding cover 72 and flows to the filter screen 2 under the action of the arc groove. The motor starts, causing the drive rod 35 to rotate, which drives the drive ring 61 on the surface of the drive rod 35 to move back and forth, which in turn causes the bending rod 32 to move back and forth, driving the cleaning rod 33 to move back and forth on the surface of the filter screen 2, pushing the ash and slag on the surface of the filter screen 2 into the collection box 71. When the ash and slag stored in the collection box 71 reaches a certain amount, the motor is turned off and the spraying and ventilation into the quench tower 1 are stopped. Then the collection box 71 is taken out and cleaned. When it is necessary to replace the sealing ring 34 or the cleaning rod 33, first rotate the fixing screw 44 to disengage the fixing screw 44 from the protruding shaft 43, slide the cleaning block 31, and when replacing the sealing ring 34, slide the end of the sealing ring 34 to slide the moving shaft out of the moving groove 74, and then take it out from the through groove position; when replacing the cleaning rod 33, first rotate the fixing rod 54 to disengage the fixing rod 54 from the connecting ring 51, then rotate the connecting ring 51 to slide the connecting post 53 into the vertical area of ​​the bending groove 52, and then pull the cleaning rod 33 to disengage the connecting ring 51 from the inner groove, and then the cleaning rod 33 can be taken out.

[0023] The above-disclosed embodiments are merely a few specific examples of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A quench tower for reducing flue gas temperature, comprising a quench tower body (1), a filter screen (2) is fixedly arranged inside the quench tower body (1), characterized in that, A cleaning mechanism is provided between the quench tower body (1) and the filter screen (2), the cleaning mechanism including: A cleaning block (31) is slidably disposed inside the quench tower body (1). The cleaning block (31) is fixedly connected to the quench tower body (1) by a fixing component. The filter screen (2) is fixedly disposed inside the cleaning block (31). Two bent rods (32) are slidably connected inside the cleaning block (31). A cleaning rod (33) that contacts the filter screen (2) is fixedly disposed between the two bent rods (32). The cleaning rod (33) is fixedly connected to the bent rod (32) by a connecting component. A sealing ring (34) is slidably connected to the surface of the bent rod (32). A drive rod (35) is rotatably installed inside the quench tower body (1), and a reciprocating assembly is provided between the drive rod (35) and the bending rod (32).

2. A quench tower for reducing flue gas temperature as described in claim 1, characterized in that, The fixing assembly includes a fixing block (41) fixedly disposed on the surface of the quench tower body (1), a protruding rod (42) fixedly connected to the surface of the fixing block (41), a protruding shaft (43) fixedly connected to the surface of the cleaning block (31), and a fixing screw (44) threadedly connected between the protruding rod (42) and the protruding shaft (43).

3. A quench tower for reducing flue gas temperature as described in claim 2, characterized in that, The protruding rod (42) has an indentation groove on its surface, and the protruding shaft (43) is adapted to the indentation groove.

4. A quench tower for reducing flue gas temperature as described in claim 3, characterized in that, The surface of the quench tower body (1) is fixedly connected with several connecting rods (45), the connecting rods (45) are fixedly connected with the fixing block (41), and the projection of the connecting rods (45) toward the protruding rod (42) is located on the surface of the recessed groove.

5. A quench tower for reducing flue gas temperature as described in claim 1, characterized in that, The connecting assembly includes a connecting ring (51) rotatably disposed at the end of the cleaning rod (33). The bending rod (32) has an internal groove and a bending groove (52) on its surface. The connecting ring (51) is adapted to the internal groove and the internal groove is connected to the bending groove (52). A connecting post (53) is fixedly connected to the surface of the connecting ring (51) and the connecting post (53) is adapted to the bending groove (52).

6. A quench tower for reducing flue gas temperature as described in claim 5, characterized in that, The cleaning rod (33) has a C-shaped cross-section, and a fixing rod (54) is threaded between the connecting ring (51) and the bending rod (32).

7. A quench tower for reducing flue gas temperature as described in claim 1, characterized in that, The reciprocating assembly includes a drive ring (61) fixedly disposed on the surface of the bent rod (32), a drive column (62) fixedly connected to the surface of the drive ring (61), and a spiral ring groove (63) opened on the surface of the drive rod (35), the spiral ring groove (63) being adapted to the drive column (62).

8. A quench tower for reducing flue gas temperature as described in claim 1, characterized in that, The cleaning block (31) has two collection boxes (71) slidably connected inside. The collection boxes (71) are fixed to the cleaning block (31) by screws. The two collection boxes (71) are symmetrically arranged relative to the filter screen (2) and are located on both sides of the cleaning rod (33).

9. A quench tower for reducing flue gas temperature as described in claim 8, characterized in that, The surface of the collection box (71) is fixedly connected to a cover (72), the surface of the cover (72) is provided with an arc groove, the projection edge of the cover (72) towards the filter screen (2) coincides with the edge of the filter screen (2), and the surface of the cleaning block (31) is fixedly connected to an arc rod (73), the cross section of the arc rod (73) is an isosceles triangle.

10. A quench tower for reducing flue gas temperature as described in claim 1, characterized in that, The sealing ring (34) is fixedly connected to a movable shaft at its end. The bent rod (32) has a movable groove (74) on its surface. The movable groove (74) is a semi-open groove. The movable shaft is adapted to the movable groove (74). The cleaning block (31) has a sliding groove on its surface. The sliding groove is adapted to the sealing ring (34). The cleaning block (31) has a through groove on its surface. The through groove is adapted to the sealing ring (34). The through groove and the sliding groove are arranged perpendicularly in space. The cleaning rod (33) has a protruding ring (75) fixedly connected to its end. The protruding ring (75) covers the sliding groove.

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