A washing system and method for quenching tower materials

Abstract

The present invention discloses a washing system and method for materials in a quenching tower, and relates to the technical field of material washing. The present invention comprises a tower body, an air inlet pipe and a reflux pipe, wherein at least three tower plates are arranged in parallel in the vertical direction at the upper end of the inner part of the tower body, and at least three defoamers are arranged in parallel in the vertical direction inside the tower body below the tower plate; the air inlet pipe is fixedly connected to the side wall of the tower body below the tower plate, the air inlet pipe located inside the tower body is arranged in a U shape, and one end of the air inlet pipe located inside the tower body extends to the bottom of the defoamer and is fixedly connected to the inner wall of the tower body, and a plurality of air outlets are arranged in an array along the axial direction on the bottom surface of the horizontal pipe of the air inlet pipe located below the defoamer; a spray head is fixedly connected to the inner part of the top surface of the tower body, and the spray head is connected to one end of the reflux pipe. The present invention can achieve full washing of materials, and in the washing process, can effectively avoid the blockage of the tower plate ventilation port and the liquid exchange port, and improve the overall practicality of the system.

Description

Technical Field

[0001] The invention belongs to the technical field of material washing, and in particular relates to a system and method for washing materials in a quench tower. Background Art

[0002] In the current cold hydrogenation process, after the reaction of the fluidized bed reactor is completed, the industrial gas needs to be introduced into the quenching tower for washing, cooling and dust removal after the silicon powder is removed by the cyclone separator. Specifically, the industrial gas enters the quenching tower from above the liquid level of the quenching tower kettle, and after passing through multiple layers of tower plates, it contacts with the reflux liquid phase chlorosilane at the top of the tower for mass transfer and heat transfer to remove trace silicon powder, some high boiling products and metal impurities in the industrial gas. The silicon powder and impurities are enriched in the cone of the tower kettle and subsequently discharged to the slurry treatment to achieve the washing of the industrial gas. However, the above-mentioned washing system has the following shortcomings in actual use:

[0003] 1. In the existing washing system, during the washing process, the industrial gas directly contacts the spray liquid on the tower plate. Due to the large gas flow rate and fast flow rate, it is very easy to cause uneven contact between the gas and the liquid, and it is easy to bring silicon powder and impurities into the subsequent system, affecting product quality;

[0004] 2. The existing washing system does not pre-treat and remove impurities in industrial gas during the washing process, which results in impurities easily blocking the ventilation port of the tower plate when the gas enters the tower plate, thus affecting the use of the tower plate;

[0005] 3. In the actual use of the existing washing system, after the tower plate is washed, the sediment in the washing liquid will be enriched on the tower plate to a certain extent. As the washing proceeds, the enrichment layer of the tower plate gradually increases, which will eventually cause the liquid exchange port to be blocked, thereby affecting the use of the tower plate;

[0006] For example, the existing open document CN104755144B-Material Exchange Tower Plate discloses a tower plate having a liquid inlet on the inlet side of the tower plate and a liquid outlet on the outlet side of the opposite tower plate, and having a plurality of profile-like grooves arranged parallel to each other in the tower plate between the inlet and the outlet and transverse to the liquid flow direction, wherein the grooves have a U-shaped cross-section, and these grooves form gas passage gaps between them, and the gas passage gaps are covered by an elongated profile-like cover shell, and the cover shell has an inverted U-shaped cross-section, wherein the side walls of the grooves extend into the cover shell, so that the side walls of the grooves overlap with the side walls of the cover shell to such a height that the height is less than the height of the side walls of the grooves and the height of the side walls of the cover shell, wherein the liquid flows alternately in opposite directions in the grooves, so that the liquid flows in one direction in every other groove, and in the grooves therebetween, the liquid flows in opposite directions, and for the grooves and the cover shell near the inlet side of the tower plate, the cover shell is placed at a higher position relative to the grooves, and therefore the overlapping height is less than that in the grooves and the cover shell near the outlet side of the tower plate.

[0007] Although the column plate in the public document can improve the efficiency of material exchange, because its cover is fixedly connected to the column plate, this causes the liquid exchange port to be blocked due to the enrichment of sediment during long-term use;

[0008] Therefore, it is necessary to improve the prior art to solve the above-mentioned technical problems. Summary of the invention

[0009] The object of the present invention is to provide a quench tower material washing system and method which has good washing effect and can effectively avoid the blockage of the ventilation port and liquid exchange port of the tower plate, thereby solving the problems that the existing quench tower washing system has poor washing effect and the ventilation port and liquid exchange port of the tower plate are easily blocked during actual use.

[0010] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0011] The present invention is a washing system for materials in a quenching tower, comprising a tower body, an air inlet pipe and a reflux pipe, wherein at least three tower plates are arranged in parallel in the vertical direction at the upper end of the tower body, and at least three defoamers are arranged in parallel in the vertical direction inside the tower body below the tower plates;

[0012] The air inlet pipe is fixedly connected to the side wall of the tower body below the tower plate, the air inlet pipe located inside the tower body is arranged in a U shape, and one end of the air inlet pipe located inside the tower body extends to the bottom of the defoamer and is fixedly connected to the inner wall of the tower body, and a plurality of air outlet holes are arranged in an array along the axial direction on the bottom surface of the horizontal pipe of the air inlet pipe located below the defoamer;

[0013] A spray head is fixedly connected to the inside of the top surface of the tower body, and the spray head is connected to one end of a return pipe. At the same time, the other end of the return pipe extends from the outside of the tower body to the lower end of the tower body and is connected to the side wall of the tower body.

[0014] Furthermore, a mounting ring is fixedly connected to the inner wall of the tower body below the tower plate and the defoamer, and the tower plate and the defoamer are fixed to the mounting ring by fixing bolts on the top surface of the mounting ring.

[0015] Furthermore, a mounting flange is integrally formed on one end of the air inlet pipe located outside the tower body.

[0016] Furthermore, a water pump is installed at the upper end of the reflux pipe, and a first solenoid valve is installed at the lower end of the reflux pipe. The reflux pipe is also connected to a liquid inlet pipe, and a second solenoid valve is installed on the liquid inlet pipe. A controller that is electrically connected to the water pump, the first solenoid valve and the second solenoid valve, respectively, is fixedly connected to the outer wall of the tower body.

[0017] Furthermore, a sewage pipe is arranged at the bottom of the tower body, and a sealing cover is detachably connected to the free end of the sewage pipe, and an exhaust pipe is connected and arranged on the side wall of the tower body above the tower plate.

[0018] Furthermore, a plurality of anti-blocking mechanisms are filled in an array on the top surface of the tower plate, and the anti-blocking mechanisms are mainly arranged by an outer cylinder, a middle cylinder and an inner cylinder which are concentric from the outside to the inside, a cover plate is extended outwardly on the outer side wall of the lower end of the outer cylinder, and an L-shaped exhaust pipe with one end extending into the outer cylinder is evenly arranged on the bottom surface of the cover plate along the circumferential direction, and the upper ends of the plurality of L-shaped exhaust pipes are connected to the bottom surface of the same limiting ring on the inner wall of the outer cylinder, and the limiting ring is also provided with a plurality of through holes staggered with the L-shaped exhaust pipe along the circumferential direction;

[0019] An air bag ring is fixedly sleeved on the middle part of the outer side wall of the outer tube;

[0020] The tops of the middle tube and the inner tube are fixedly connected to the same connection plate, the middle of the top surface of the connection plate is connected to a guide rod that is slidably sleeved in the top plate of the outer tube, the middle tube is slidably sleeved in the limiting ring, and a drainage cavity is provided between the middle tube and the inner tube;

[0021] A water inlet groove is circumferentially arranged at the upper end of the side wall of the middle tube, a sliding groove for baffle limiting guide is arranged on the bottom surface of the water inlet groove and the two side walls, and a stopper is arranged on the upper outer wall of the baffle.

[0022] Furthermore, the lower end of the inner cylinder is fixedly connected to the tower plate, an air inlet hole is provided on the tower plate inside the inner cylinder, and an exhaust groove is provided on the connecting plate inside the inner cylinder;

[0023] The top of the L-shaped exhaust pipe is open, and exhaust holes are evenly distributed on the bottom surface of the L-shaped exhaust pipe body below the cover plate.

[0024] Furthermore, drainage grooves are evenly distributed in the circumferential direction on the upper edge of the tower plate at the drainage cavity position, and an infrared ranging sensor is arranged on the top surface of the water inlet groove.

[0025] Furthermore, in the initial working state, the distance from the bottom surface of the airbag ring to the top surface of the limiting ring is greater than the height of the stopper.

[0026] The present invention also provides a washing method for a washing system of a quench tower material, the washing method specifically comprising the following steps:

[0027] S1: One end of the liquid inlet pipe is connected to a cleaning liquid storage tank. The controller controls the water pump to work while controlling the first solenoid valve to close and the second solenoid valve to open. Under the operation of the water pump, the cleaning liquid is discharged from the spray head at the upper end of the tower body. The sprayed cleaning liquid passes through the pedal and the defoamer in turn and flows to the lower end of the tower body;

[0028] S2: Continue to pump cleaning liquid into the tower body until all defoamers are submerged in the cleaning liquid;

[0029] S3: After the cleaning liquid is delivered, the second solenoid valve is closed and the first solenoid valve is opened, and the air to be cleaned is blown into the air intake pipe while the water pump is controlled to work by the controller;

[0030] S4: The air to be cleaned that is blown in through the air inlet pipe is finally discharged from the air outlet, so that the air to be cleaned is initially cleaned in the cleaning liquid;

[0031] S5: the gas to be washed, which is blown into the cleaning liquid, passes through the defoamer and is defoamed, and finally flows to the tower plate above the defoamer;

[0032] S6: The gas to be washed flowing to the tray position passes through the air inlet, the exhaust groove and the L-shaped exhaust pipe in sequence, and is finally discharged from the exhaust hole position. At this time, the gas to be washed discharged from the exhaust hole position directly contacts the cleaning liquid accumulated on the tray to achieve further water washing;

[0033] S7: The gas to be washed passes through multiple tower plates to complete the final washing, and the washed gas is discharged and collected through the outlet pipe.

[0034] The present invention has the following beneficial effects:

[0035] 1. The present invention adopts a U-shaped air inlet pipe located inside the tower body, and the gas entering the air inlet pipe is finally discharged from the air outlet on the horizontal pipe below the defoamer. Because the air inlet pipe is immersed in the cleaning liquid, the incoming gas can be preliminarily washed with water to discharge impurities and silicon powder in the gas, and also preliminarily cool down the gas.

[0036] 2. The present invention immerses the air inlet pipe in the cleaning liquid below the tower body, so that impurities in the gas can be removed in the initial washing, avoiding impurities entering the tower plate position to block the ventilation port and affect the normal use of the tower plate.

[0037] 3. The present invention is provided with an anti-clogging mechanism. After a certain amount of cleaning liquid accumulates above the tower plate, the airbag ring will drive the entire outer cylinder to move upward relative to the middle cylinder due to the floating effect. As the sediment on the tower plate is enriched, the water level of the cleaning liquid will rise accordingly. At this time, under the action of the airbag ring, the limit ring on the inner side of the outer cylinder will abut against the block, thereby driving the baffle at the water inlet position to move up, thereby adjusting the position of the water inlet groove to avoid blockage of the water inlet groove due to the continuous increase of sediment enriched below, and avoiding affecting the normal use of the tower plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0039] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0040] Figure 2 It is a cross-sectional view of the present invention in the vertical direction;

[0041] Figure 3 It is a schematic diagram of the coordination of the tower plate and the anti-blocking mechanism in the present invention;

[0042] Figure 4 For the present invention Figure 3 Bottom schematic diagram of the structure;

[0043] Figure 5 It is a schematic diagram of the overall structure of the anti-blocking mechanism in the present invention;

[0044] Figure 6 For the present invention Figure 5 Bottom schematic diagram of the structure;

[0045] Figure 7 For the present invention Figure 5 A vertical cross-section of the structure;

[0046] Figure 8 This is a diagram of the middle tube and the baffle to be matched in the present invention;

[0047] Fig. 9 This is a bottom schematic diagram of the connecting body of the middle cylinder and the inner cylinder in the present invention;

[0048] Fig.10 It is a bottom schematic diagram of the connecting body of the outer cylinder and the cover plate in the present invention.

[0049] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0050] 1. Tower body; 2. Air inlet pipe; 3. Controller; 4. Reflux pipe; 5. Defoamer; 6. Tower plate; 7. Anti-blocking mechanism; 101. Drain pipe; 102. Sealing cover; 103. Mounting ring; 104. Air outlet pipe; 201. Mounting flange; 202. Air outlet; 401. First solenoid valve; 402. Water pump; 403. Spray head; 404. Liquid inlet pipe; 405. Second solenoid valve; 601. Air inlet; 602. Drain trough; 70 1. Outer tube; 702. Air bag ring; 703. Cover plate; 704. L-shaped exhaust pipe; 705. Middle tube; 706. Inner tube; 707. Baffle; 7011. Limit ring; 7012. Through hole; 7041. Exhaust hole; 7051. Guide rod; 7052. Connecting plate; 7053. Exhaust groove; 7054. Sliding groove; 7055. Water inlet groove; 7056. Infrared ranging sensor; 7061. Drainage cavity; 7071. Block. DETAILED DESCRIPTION

[0051] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0052] See also Figure 1-2 As shown, the present invention is a washing system for materials in a quenching tower, comprising a tower body 1, an air inlet pipe 2 and a reflux pipe 4. At least three tower plates 6 are arranged in parallel in the vertical direction at the upper end of the tower body 1. At least three defoamers 5 are arranged in parallel in the vertical direction inside the tower body 1 below the tower plates 6. The tower plates 6 are arranged for repeated contact between gas and a cleaning liquid, and the defoamers 5 can play a defoaming role, thereby performing preliminary and sufficient cleaning of the gas below the tower body 1.

[0053] The tower plate 6 and the defoamer 5 are fixedly connected to the inner wall of the tower body 1 below the tower plate 6 and the defoamer 5, and the tower plate 6 and the defoamer 5 are fixed to the mounting ring 103 by the fixing bolts on the top surface of the mounting ring 103. This arrangement facilitates the disassembly and installation of the tower plate 6 and the defoamer 5, and facilitates the replacement and cleaning of the tower plate 6 and the defoamer 5 by the staff. In actual use, in order to facilitate the disassembly and replacement of the tower plate 6 and the defoamer 5, an inlet and outlet for operation by the staff is also provided on the side wall of the tower body 1 above the tower plate 6 (not shown in the accompanying drawings);

[0054] A sewage pipe 101 is provided at the bottom of the tower body 1, and a sealing cover 102 is detachably connected to the free end of the sewage pipe 101, which is convenient for the staff to open the sealing cover 102 and take out the sediment at the lower end of the tower body 1. An exhaust pipe 104 is connected to the side wall of the tower body 1 above the tower plate 6, and the exhaust pipe 104 can collect the gas after washing;

[0055] A spray head 403 is fixedly connected to the inside of the top surface of the tower body 1, and the spray head 403 is connected to one end of the return pipe 4, while the other end of the return pipe 4 extends from the outside of the tower body 1 to the lower end of the tower body 1 and is connected to the side wall of the tower body 1;

[0056] A water pump 402 is installed at the upper end of the reflux pipe 4, and a first solenoid valve 401 is installed at the lower end of the reflux pipe 4. The setting of the first solenoid valve 401 can play an on-off control role on the lower end of the reflux pipe 4. The reflux pipe 4 is also connected to a liquid inlet pipe 404, and a second solenoid valve 405 is installed on the liquid inlet pipe 404. The liquid inlet pipe 404 is externally connected to a cleaning liquid storage tank. The second solenoid valve 405 is used to control the on-off of the liquid inlet pipe 404. The controller 3, which is electrically connected to the water pump 402, the first solenoid valve 401 and the second solenoid valve 405, is fixedly connected to the outer wall of the tower body 1.

[0057] When the above arrangement is in use, the cleaning liquid first enters the reflux pipe 4 through the liquid inlet pipe 404, and through the operation of the water pump 402, the cleaning liquid entering the reflux pipe 4 is finally sprayed out from the spray head 403 and sprayed on the tower plate 6. The cleaning liquid finally falls into the lower end of the tower body 1 through the tower plate 6 and the defoamer 5 for collection. At this time, the first solenoid valve 401 is opened, and the water pump 402 is used to realize the circulation of the cleaning liquid in the tower body 1.

[0058] In addition, it should be noted that in order to improve the heat exchange efficiency of the cleaning liquid, the reflux pipe 4 located outside the tower body 1 can be equipped with a cooling system to facilitate the heat exchange of the auxiliary cleaning liquid. The cooling system can select the corresponding technical means disclosed in the prior art.

[0059] See also Figure 2 As shown, the air inlet pipe 2 is fixedly connected to the side wall of the tower body 1 below the tower plate 6, the air inlet pipe 2 located inside the tower body 1 is arranged in a U shape, and one end of the air inlet pipe 2 located inside the tower body 1 extends to the bottom of the defoamer 5 and is fixedly connected to the inner wall of the tower body 1, and a plurality of air outlet holes 202 are arranged in an array along the axial direction on the bottom surface of the transverse pipe of the air inlet pipe 2 located below the defoamer 5, which prevents impurities from entering the air outlet holes 202 and causing blockage of the air outlet holes 202, and a mounting flange 201 is integrally formed on one end of the air inlet pipe 2 located outside the tower body 1, and the arrangement of the mounting flange 201 facilitates connection with the gas delivery pipe;

[0060] When the above arrangement is in use, the gas to be cleaned enters the tower body 1 through the air inlet pipe 2 and is finally discharged from the air outlet 202 so as to contact with the cleaning liquid below the tower body 1 for preliminary water washing.

[0061] See also Figure 3-10 As shown, the top surface of the tower plate 6 is filled with a plurality of anti-blocking mechanisms 7 in an array, and the anti-blocking mechanism 7 is mainly provided by an outer cylinder 701, a middle cylinder 705 and an inner cylinder 706 which are concentric from the outside to the inside, and a cover plate 703 is provided on the outer side wall of the lower end of the outer cylinder 701 to extend outward, and an L-shaped exhaust pipe 704 with one end extending into the outer cylinder 701 is uniformly provided on the bottom surface of the cover plate 703 along the circumferential direction, and the upper ends of the plurality of L-shaped exhaust pipes 704 are connected to the bottom surface of the same limiting ring 7011 on the inner wall of the outer cylinder 701, and the limiting ring 7011 is also provided with a plurality of through holes 7012 which are staggered with the L-shaped exhaust pipe 704 along the circumferential direction, and the L-shaped exhaust pipe 704 is used for gas discharge, and the through holes 7012 are provided for the cleaning liquid to enter the outer cylinder 701 above the limiting ring 7011;

[0062] An airbag ring 702 is fixedly sleeved on the middle of the outer wall of the outer tube 701, and the airbag ring 702 is made of a material with strong corrosion resistance;

[0063] The tops of the middle cylinder 705 and the inner cylinder 706 are fixedly connected to the same connection disk 7052. The middle of the top surface of the connection disk 7052 is connected to a guide rod 7051 that is slidably sleeved in the top plate of the outer cylinder 701. The setting of the guide rod 7051 can play a limiting and guiding role in the movement of the outer cylinder 701. The middle cylinder 705 is slidably sleeved in the limiting ring 7011, and a drainage cavity 7061 is provided between the middle cylinder 705 and the inner cylinder 706.

[0064] A water inlet groove 7055 is provided at the upper end of the side wall of the middle cylinder 705 along the circumferential direction. A sliding groove 7054 for limiting and guiding the baffle 707 is provided on the bottom surface of the water inlet groove 7055 and the two side walls. The sliding groove 7054 can guide the movement of the baffle 707 and store the baffle 707. A stopper 7071 is provided on the upper outer wall of the baffle 707.

[0065] The lower end of the inner cylinder 706 is fixedly connected to the tower plate 6, and the tower plate 6 inside the inner cylinder 706 is provided with an air inlet hole 601, and the connecting plate 7052 inside the inner cylinder 706 is provided with an exhaust groove 7053;

[0066] The top of the L-shaped exhaust pipe 704 is open, and exhaust holes 7041 are evenly distributed on the bottom surface of the L-shaped exhaust pipe 704 below the cover plate 703;

[0067] Drainage grooves 602 are evenly distributed along the circumference of the tower plate 6 at the position of the drainage cavity 7061, and an infrared distance sensor 7056 is arranged on the top surface of the water inlet groove 7055. The setting of the infrared distance sensor 7056 can detect the position of the baffle 707. When the distance from the baffle 707 to the infrared distance sensor 7056 is lower than a certain value, the staff can be notified to clean the tower plate 6;

[0068] In the initial working state, the distance between the bottom surface of the airbag ring 702 and the top surface of the limit ring 7011 is greater than the height of the stopper 7071. This setting allows the actual height of the cleaning liquid to be higher than the top surface of the stopper 7071 when the limit ring 7011 contacts the stopper 7071 during the process of the airbag ring 702 driving the outer cylinder 701 to move upward, so that the cleaning liquid is easily discharged from the water inlet groove 7055.

[0069] When the above arrangement is in use, the gas enters the inner cylinder 706 from the air inlet 601, and is discharged through the exhaust groove 7053 above the connecting plate 7052, enters the inner side of the outer cylinder 701, and then enters the L-shaped exhaust pipe 704 through the opening at the upper end of the L-shaped exhaust pipe 704, and finally is discharged from the exhaust hole 7041 at the position of the L-shaped exhaust pipe 704, and contacts with the cleaning liquid above the tower plate 6 for water washing. As the sediment is enriched, the height of the cleaning liquid will also increase. At this time, the airbag ring 70 2 will drive the outer cylinder 701 to move upward due to the buoyancy, and then drive the limit ring 7011 to move upward. The upward movement of the limit ring 7011 will drive the baffle 707 to move upward along the water inlet groove 7055 due to the obstruction of the stop block 7071, thereby adjusting the lower end position of the water inlet groove 7055. The cleaning liquid enters the drainage cavity 7061 through the water inlet groove 7055, and finally flows to the tower plate 6 or the defoamer 5 below the tower plate 6 through the drainage groove 602, and is finally collected at the bottom of the tower body 1.

[0070] The present invention also provides a washing method for a washing system of a quench tower material, the washing method specifically comprising the following steps:

[0071] S1: One end of the liquid inlet pipe 404 is connected to an external cleaning liquid storage tank. The controller 3 controls the water pump 402 to work, and controls the first solenoid valve 401 to be closed and the second solenoid valve 405 to be opened. Under the operation of the water pump 402, the cleaning liquid is discharged from the spray head 403 at the upper end of the tower body 1, and the sprayed cleaning liquid passes through the tower plate 6 and the defoamer 5 in sequence and flows to the lower end of the tower body 1;

[0072] S2: Continue to pump the cleaning liquid into the tower body 1 until the cleaning liquid submerges all the defoamers 5;

[0073] S3: After the cleaning liquid is delivered, the second solenoid valve 405 is closed and the first solenoid valve 401 is opened. The air to be cleaned is blown into the air inlet pipe 2 while the water pump 402 is controlled by the controller 3 to work.

[0074] S4: The air to be cleaned that is blown in through the air inlet pipe 2 is finally discharged from the air outlet 202, so that the air to be cleaned is initially cleaned in the cleaning liquid;

[0075] S5: the gas to be washed, which is blown into the cleaning liquid, passes through the defoamer 5 and is defoamed, and finally flows to the tower plate 6 above the defoamer 5;

[0076] S6: The gas to be washed flowing to the position of tray 6 passes through the air inlet 601, the exhaust groove 7053 and the L-shaped exhaust pipe 704 in sequence, and is finally discharged from the exhaust hole 7041. At this time, the gas to be washed discharged from the exhaust hole 7041 directly contacts the cleaning liquid accumulated on the tray 6 to achieve further water washing;

[0077] S7: The gas to be scrubbed passes through a plurality of trays 6 to complete final scrubbing, and the scrubbed gas is discharged and collected through the gas outlet pipe 104 .

[0078] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments, any equivalent replacement of some of the technical features therein, and any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. A washing system for materials in a quench tower, comprising a tower body (1), an air inlet pipe (2) and a reflux pipe (4), characterized in that: At least three tower plates (6) are arranged in parallel along the vertical direction at the upper end of the tower body (1), and at least three defoamers (5) are arranged in parallel along the vertical direction inside the tower body (1) below the tower plates (6); The air inlet pipe (2) is fixedly connected to the side wall of the tower body (1) below the tower plate (6); the air inlet pipe (2) located inside the tower body (1) is arranged in a U shape; one end of the air inlet pipe (2) located inside the tower body (1) extends to the bottom of the defoamer (5) and is fixedly connected to the inner wall of the tower body (1); a plurality of air outlet holes (202) are arranged in an array along the axial direction on the bottom surface of the horizontal pipe of the air inlet pipe (2) located below the defoamer (5); A spray head (403) is fixedly connected to the interior of the top surface of the tower body (1), and the spray head (403) is connected to one end of the return pipe (4), while the other end of the return pipe (4) extends from the outside of the tower body (1) to the lower end of the tower body (1) and is connected to the side wall of the tower body (1); A plurality of anti-blocking mechanisms (7) are arranged in an array on the top surface of the tower plate (6), the anti-blocking mechanism (7) mainly comprising an outer cylinder (701), a middle cylinder (705) and an inner cylinder (706) which are arranged concentrically from the outside to the inside, a cover plate (703) is provided on the outer wall of the lower end of the outer cylinder (701) to extend outward, an L-shaped exhaust pipe (704) having one end extending into the outer cylinder (701) is evenly arranged on the bottom surface of the cover plate (703) along the circumferential direction, the upper ends of the plurality of L-shaped exhaust pipes (704) are connected to the bottom surface of the same limiting ring (7011) on the inner wall of the outer cylinder (701), and the limiting ring (7011) is also provided with a plurality of through holes (7012) which are offset from the L-shaped exhaust pipe (704) along the circumferential direction; An air bag ring (702) is fixedly sleeved on the middle portion of the outer side wall of the outer cylinder (701); The tops of the middle cylinder (705) and the inner cylinder (706) are fixedly connected to the same connection disk (7052); a guide rod (7051) slidably sleeved in the top plate of the outer cylinder (701) is connected to the middle of the top surface of the connection disk (7052); the middle cylinder (705) is slidably sleeved in the limiting ring (7011); and a drainage cavity (7061) is provided between the middle cylinder (705) and the inner cylinder (706); A water inlet groove (7055) is provided at the upper end of the side wall of the middle cylinder (705) along the circumferential direction, a sliding groove (7054) for limiting and guiding the baffle plate (707) is provided on the bottom surface and two side walls of the water inlet groove (7055), and a stopper (7071) is provided on the upper outer wall of the baffle plate (707); The lower end of the inner cylinder (706) is fixedly connected to the tower plate (6); an air inlet hole (601) is provided on the tower plate (6) inside the inner cylinder (706); and an exhaust groove (7053) is provided on the connecting plate (7052) inside the inner cylinder (706); The top of the L-shaped exhaust pipe (704) is open, and exhaust holes (7041) are evenly distributed on the bottom surface of the tube body of the L-shaped exhaust pipe (704) below the cover plate (703).

2. A quench tower material washing system as claimed in claim 1, characterized in that: A mounting ring (103) is fixedly connected to the inner wall of the tower body (1) below the tower plate (6) and the defoamer (5), and the tower plate (6) and the defoamer (5) are fixed to the mounting ring (103) by means of fixing bolts on the top surface of the mounting ring (103).

3. A washing system for quenching tower materials as claimed in claim 2, characterized in that: A mounting flange (201) is integrally formed on one end of the air inlet pipe (2) located outside the tower body (1).

4. A quench tower material washing system as claimed in claim 3, characterized in that: A water pump (402) is installed at the upper end of the return pipe (4), and a first solenoid valve (401) is installed at the lower end of the return pipe (4). The return pipe (4) is also connected to a liquid inlet pipe (404), and a second solenoid valve (405) is installed on the liquid inlet pipe (404). A controller (3) electrically connected to the water pump (402), the first solenoid valve (401) and the second solenoid valve (405) is fixedly connected to the outer wall of the tower body (1).

5. A quench tower material washing system as claimed in claim 4, characterized in that: A sewage pipe (101) is provided at the bottom of the tower body (1), and a sealing cover (102) is detachably connected to the free end of the sewage pipe (101). An exhaust pipe (104) is provided on the side wall of the tower body (1) above the tower plate (6).

6. A quench tower material washing system according to any one of claim 1, characterized in that: Drainage grooves (602) are evenly distributed along the circumference of the tower plate (6) at the position of the drainage cavity (7061), and an infrared distance measuring sensor (7056) is arranged on the top surface of the water inlet groove (7055).

7. A quench tower material washing system as claimed in claim 1, characterized in that: In the working starting state, the distance from the bottom surface of the airbag ring (702) to the top surface of the limiting ring (7011) is greater than the height of the stopper (7071).

8. A method for washing a washing system for a quench tower material, characterized in that: The washing method of a washing system for a quench tower material according to claim 5 specifically comprises the following steps: S1: One end of the liquid inlet pipe (404) is connected to an external cleaning liquid storage tank. The controller (3) controls the water pump (402) to operate while controlling the first solenoid valve (401) to close and the second solenoid valve (405) to open. Under the operation of the water pump (402), the cleaning liquid is discharged from the spray head (403) at the upper end of the tower body (1). The sprayed cleaning liquid passes through the tower plate (6) and the defoamer (5) in sequence and flows to the lower end of the tower body (1); S2: Continue to pump the cleaning liquid into the tower body (1) until the cleaning liquid submerges all the defoamers (5); S3: After the cleaning liquid is delivered, the second solenoid valve (405) is closed and the first solenoid valve (401) is opened, and the air to be cleaned is blown in through the air inlet pipe (2), while the water pump (402) is controlled to work by the controller (3); S4: the gas to be cleaned is blown in through the gas inlet pipe (2) and finally discharged from the gas outlet (202), so that the gas to be cleaned is initially cleaned in the cleaning liquid; S5: the gas to be washed is blown into the cleaning liquid, passes through the defoamer (5) for defoaming, and finally flows to the tower plate (6) above the defoamer (5); S6: The gas to be washed that flows to the position of the tower plate (6) passes through the air inlet (601), the exhaust groove (7053) and the L-shaped exhaust pipe (704) in sequence, and is finally discharged from the exhaust hole (7041). At this time, the gas to be washed that is discharged from the exhaust hole (7041) directly contacts the cleaning liquid accumulated on the tower plate (6), thereby achieving further water washing; S7: The gas to be scrubbed passes through a plurality of tower plates (6) to complete final scrubbing, and the scrubbed gas is discharged and collected through the gas outlet pipe (104).

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