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CN-121988150-A - Ammonia water spraying mechanism and ammonia desulfurization tower comprising same

CN121988150ACN 121988150 ACN121988150 ACN 121988150ACN-121988150-A

Abstract

The invention relates to the technical field of ammonia desulfurization, in particular to an ammonia water spraying mechanism and an ammonia desulfurization tower comprising the same, comprising a tower body, an air inlet arranged at one side of the tower body, a water inlet pipe arranged at one side of the tower body and a spray header connected with the inner part of the tower body; the device comprises a tower body, a plurality of guide plates, a rotating cylinder, blades, a movable plate, a turbulent flow assembly and a turbulent flow assembly, wherein the guide plates are arranged along an annular array of the inner wall of the tower body, one end of the guide plates inclines towards the middle part of the tower body, a plurality of guide plates are arranged on the same horizontal plane in a circle, the guide plates are arranged in a staggered manner from top to bottom along the height direction of the tower, the rotating cylinder is rotatably arranged below the guide plates, the annular array is fixedly arranged outside the rotating cylinder, the plurality of guide plates are provided with a plurality of through holes, the movable plate is movably arranged inside the blades, and the turbulent flow assembly is arranged in the rotating cylinder and used for driving the movable plate to move. According to the ammonia desulfurization tower provided by the invention, through the reciprocating movement of the movable plate in the movable groove, the through hole is in a state of being opened and closed in time, so that the gathering speed of waste gas from the inner wall of the tower body to the middle part can be improved.

Inventors

  • YANG HUIXIU

Assignees

  • 上海鲁源控制设备有限公司

Dates

Publication Date
20260508
Application Date
20260401

Claims (12)

  1. 1. The utility model provides an aqueous ammonia spraying mechanism, includes the tower body and establishes the air inlet of tower body one side, its characterized in that still includes: The water inlet pipe is arranged at one side of the tower body and is connected with the spray header in the tower body; the guide plates are arranged along the annular array of the inner wall of the tower body, one end of each guide plate inclines towards the middle of the tower body, a plurality of guide plates are arranged on the same horizontal plane from top to bottom, and the guide plates are staggered and distributed on the upper layer and the lower layer along the height direction of the tower; The rotating cylinder is rotatably arranged below the guide plate; the annular arrays are fixedly arranged on the outer side of the rotating cylinder, a plurality of blades are arranged, and a plurality of through holes are formed in the blades; The movable plate is movably arranged in the blade; The turbulence assembly is arranged in the rotating cylinder and used for driving the movable plate to move.
  2. 2. The ammonia water spraying mechanism according to claim 1, wherein the turbulence assembly comprises a movable groove, the movable groove is formed in the blade and is communicated with the inside of the rotary cylinder, the movable plate is slidably connected with the movable groove, and one end of the movable plate, which is far away from the rotary cylinder, is fixedly connected with the inner wall of the movable groove through a reset spring.
  3. 3. The ammonia water spraying mechanism according to claim 2, wherein the movable plate is provided with round holes, and the round holes are alternately aligned with the through holes.
  4. 4. The ammonia water spraying mechanism according to claim 2, wherein a fixed cylinder is fixedly arranged at the bottom of the guide plate, one end of the fixed cylinder, far away from the guide plate, movably penetrates through the upper end of the rotating cylinder and stretches into the rotating cylinder, a fixed ring is fixedly sleeved at the outer side of the tail end of the fixed cylinder, a plurality of bulges are arranged on the fixed ring in an annular array manner, a limiting rod is fixedly arranged at one end of the movable plate, close to the fixed ring, of the movable plate, and one end of the limiting rod, far away from the movable plate, is slidably embedded with the fixed ring and the surface of the bulges.
  5. 5. The ammonia water spraying mechanism according to claim 2, wherein a rotating rod is fixedly arranged in the rotating cylinder in a penetrating manner, one end, far away from the rotating cylinder, of the rotating rod movably penetrates through the fixed cylinder and the guide plate and is positioned above the guide plate, and a rotating piece is fixedly sleeved at the tail end of the rotating rod.
  6. 6. The ammonia water spraying mechanism according to claim 5, wherein the guide plates are axially and symmetrically arranged on two sides of one end of the inner wall of the tower body, and the guide plates are obliquely arranged and are positioned above the rotating plate.
  7. 7. The ammonia water spraying mechanism according to claim 5, wherein a liquid storage plate is fixedly arranged at the tail end of the guide plate, a liquid storage tank is arranged in the liquid storage plate, a drain hole is arranged at the bottom of the liquid storage tank, a baffle is movably arranged in the drain hole, a groove is arranged in the guide plate, the groove is communicated with the drain hole, and one end of the baffle, which is far away from the drain hole, is positioned in the groove and is in sliding connection with the groove.
  8. 8. The ammonia water spraying mechanism according to claim 7, wherein the guide plate is positioned below the liquid storage plate and provided with a notch, a vertical rod is rotatably arranged in the notch, and a beating fan blade is fixedly sleeved outside the vertical rod.
  9. 9. The ammonia spraying mechanism of claim 8, wherein the rotating rod is connected with the vertical rod through a belt transmission.
  10. 10. The ammonia water spraying mechanism according to claim 9, wherein a cam is arranged on the outer side of the rotating rod in a fixed manner, a movable frame is arranged on the outer side of the cam in a movable manner, movable rods are axially and symmetrically arranged at two ends of the movable frame in a fixed manner, a positioning sleeve is arranged on the outer side of the movable rod in a movable manner, the positioning sleeve is fixedly connected with the inner wall of the top of the groove, and one movable rod is fixedly connected with one end, away from the leak hole, of the baffle plate.
  11. 11. The ammonia water spraying mechanism according to claim 1, wherein the deflector is made of a smooth-surfaced material.
  12. 12. An ammonia desulfurization tower, comprising the ammonia water spraying mechanism according to any one of claims 1 to 11.

Description

Ammonia water spraying mechanism and ammonia desulfurization tower comprising same Technical Field The invention relates to the technical field of ammonia desulfurization, in particular to an ammonia water spraying mechanism and an ammonia desulfurization tower with the same. Background The ammonia desulfurization technology is widely applied to the flue gas purification treatment in the industrial fields of electric power, steel, coking and the like due to the advantages of higher desulfurization efficiency, recyclable byproducts and the like. The method has the core principle that ammonia water is sprayed to form a gas-liquid contact interface, SO that sulfur dioxide (SO 2) in the flue gas and the ammonia water are subjected to chemical reaction to generate byproducts such as ammonium sulfite, ammonium sulfate and the like, thereby realizing the removal and purification of SO 2. The existing ammonia desulfurization tower is of a vertical cylinder structure, a tower inner core component mainly comprises an ammonia water spraying device, a slurry tank, an oxidation device and a demister, the desulfurization reaction is completed by integrally relying on natural contact of ammonia water mist drops sprayed by a spraying head and rising flue gas, and for improving the gas-liquid contact effect, a part of the desulfurization tower is only additionally provided with fixed fillers or trays in a spraying area, but the structure still belongs to a passive gas-liquid contact design, and systematic optimization is not formed aiming at key problems such as flow field distribution in the tower, ammonia water utilization efficiency, mass transfer strengthening and the like, so that a plurality of inherent defects and technical bottlenecks exist in actual operation of the traditional ammonia desulfurization tower. If the traditional ammonia desulfurization tower has serious flue gas adherence short circuit problem, gas-liquid contact uniformity is poor, because the tower body is cylindrical structure, flue gas is influenced by flow field distribution characteristics in the process of rising from the tower bottom, high-speed adherence air flow is easy to form along the inner wall of the tower, and the adherence air flow is difficult to fully contact with ammonia water mist drops in the central area of the tower, and directly rises to a demister from the side of the tower wall, so that flue gas short circuit is caused. The method not only leads part of SO 2 not to be effectively removed and reduces the overall desulfurization efficiency, but also can carry a large amount of unreacted ammonia water mist drops to aggravate the ammonia escape phenomenon, thereby not only causing ammonia water waste, but also causing secondary pollution and equipment corrosion risk. Disclosure of Invention In view of the above, it is desirable to provide an ammonia water spraying mechanism capable of improving the degree of mixing between gas and ammonia water, and an ammonia desulfurization tower including the mechanism. The invention provides an ammonia water spraying mechanism, which comprises a tower body, an air inlet arranged at one side of the tower body, and further comprises: The water inlet pipe is arranged at one side of the tower body and is connected with the spray header in the tower body; the guide plates are arranged along the annular array of the inner wall of the tower body, one end of each guide plate inclines towards the middle of the tower body, a plurality of guide plates are arranged on the same horizontal plane from top to bottom, and the guide plates are staggered and distributed on the upper layer and the lower layer along the height direction of the tower; The rotating cylinder is rotatably arranged below the guide plate; the annular arrays are fixedly arranged on the outer side of the rotating cylinder, a plurality of blades are arranged, and a plurality of through holes are formed in the blades; The movable plate is movably arranged in the blade; The turbulence assembly is arranged in the rotating cylinder and used for driving the movable plate to move. In one embodiment, the turbulence assembly comprises a movable groove, the movable groove is formed in the blade and is communicated with the inside of the rotating cylinder, the movable plate is slidably connected with the movable groove, and one end, away from the rotating cylinder, of the movable plate is fixedly connected with the inner wall of the movable groove through a reset spring. In one embodiment, the movable plate is provided with round holes, and the round holes are alternately aligned with the through holes. In one embodiment, the bottom of the guide plate is fixedly provided with a fixed cylinder, one end of the fixed cylinder, which is far away from the guide plate, movably penetrates through the upper end of the rotating cylinder, stretches into the rotating cylinder, a fixed ring is fixedly sleeved on the outer side of the tail end of the fixed cy