Boiler tail gas desulfurization device with uniform spraying mechanism

Abstract

The boiler tail gas desulfurization device comprises a reaction tower, a gas inlet is fixedly formed in the upper portion of the right side of the reaction tower, a gas outlet is fixedly formed in the lower portion of the left side of the reaction tower, and a liquid storage tank is installed at the top of the reaction tower; a filter screen is arranged in the reaction tower, a movable pipe is connected to the upper part in the reaction tower, nozzles are mounted at the bottom of the movable pipe at equal intervals, and a connecting pipe is fixedly connected between the movable pipe and the liquid storage tank. According to the boiler tail gas desulfurization device with the uniform spraying mechanism, a motor drives a rotating rod to rotate, so that the rotating rod drives a transmission rod to rotate by utilizing a bevel gear set, and a movable pipe drives a plurality of spray heads to rotate, so that a desulfurization solution is sprayed and covered more uniformly, and the contact area between flue gas and the desulfurization solution is increased; the sulfur dioxide in the flue gas can be more sufficiently absorbed, and the desulfurization efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to tail gas purification technical field, concretely is a kind of boiler tail gas desulfurization device with uniform spraying mechanism. BACKGROUND

[0002] The boiler of waste incineration power plant will discharge a large amount of tail gas when working, and the tail gas contains heavy metals and harmful gases, at this time, the boiler tail gas desulfurization device needs to be used to neutralize the tail gas, so as to play the effect of dust removal and desulfurization, which reduces air pollution and protects the environment.

[0003] Defects: the existing boiler tail gas desulfurization device, in the process of using, generally is directly into the desulfurization device to deal with boiler tail gas, more particulate matter, the efficiency of desulfurization is influenced, it is inconvenient to pretreat the tail gas and clean and collect particulate matter, and the reaction solution needs to be extracted and used by water pump when desulfurizing, it is inconvenient to automatically extract the solution.

[0004] In order to solve the above defects, the prior art (application number: 202121575875.6, granted announcement date is 2022-01-18 of Chinese patent) discloses a kind of boiler tail gas desulfurization device, by the shaft, fan, filter screen, brush plate, waste drawer, water pipe and atomizing nozzle of being set, fan rotates and then drives shaft to rotate, shaft rotates and then drives brush plate to clean filter screen, and particulate matter is swept down and then collected in waste drawer for collection and processing, and the mutual cooperation of water pipe and atomizing nozzle can fully react calcium bicarbonate solution with tail gas, and then better desulfurization is carried out.

[0005] The prior art is through the mutual cooperation of water pipe and atomizing nozzle, which can fully react calcium bicarbonate solution with tail gas, and then better desulfurization is carried out, but the atomizing nozzle is fixed and cannot be adjusted, so the spraying range is limited, which makes some smoke in dead angle position easy to be not sprayed, so that the desulfurization liquid cannot be uniformly sprayed into the smoke, thereby reducing the desulfurization efficiency.

[0006] Therefore, we propose a kind of boiler tail gas desulfurization device with uniform spraying mechanism, which can well solve the above problems. INVENTION CONTENTS

[0007] The utility model aims at providing a kind of boiler tail gas desulfurization device with uniform spraying mechanism to solve the above background technology that atomizing nozzle is fixed and cannot be adjusted, so the spraying range is limited, which makes some smoke in dead angle position easy to be not sprayed, so that the desulfurization liquid cannot be uniformly sprayed into the smoke, thereby reducing the desulfurization efficiency problem.

[0008] In order to achieve the above object, the utility model provides the following technical scheme: A boiler tail gas desulfurization device with uniform spraying mechanism, including the reaction tower, the upper right side of reaction tower is equipped with the fixed air inlet, and the lower left side of reaction tower is equipped with the fixed exhaust port, the top of reaction tower is installed with the liquid storage tank.

[0009] The inside of the reaction tower is provided with a filter screen, and the upper part of the inside of the reaction tower is connected with a movable pipe, the bottom of the movable pipe is installed with spray heads at equal intervals, and the movable pipe and the liquid storage tank are fixedly connected with a connecting pipe.

[0010] The lower right side of the reaction tower is fixedly installed with a motor, the middle position of the filter screen is penetrated and fixed with a deslagging pipe, the upper surface of the inside of the deslagging pipe is penetrated and connected with a transmission rod, and the lower right side of the inside of the reaction tower is connected with a rotating rod.

[0011] The left end of the rotating rod and the bottom of the transmission rod are connected through a bevel gear set, the top of the filter screen is symmetrically provided with cleaning brushes about the center point of the transmission rod, and the two cleaning brushes and the transmission rod are connected through connecting plates.

[0012] Preferably, the inside of the connecting pipe is installed with a valve, the inside of the liquid storage tank and the movable pipe are connected through the connecting pipe, and the bottom of the connecting pipe and the inside of the movable pipe are rotatably connected, and the top of the transmission rod and the bottom of the movable pipe are fixedly connected.

[0013] Preferably, the filter screen is provided in a funnel shape, the transmission rod and the deslagging pipe are connected through a bearing, the right end of the rotating rod penetrates the right side of the reaction tower, and the right end of the rotating rod and the output end of the motor are fixedly connected, and the rotating rod, the reaction tower and the deslagging pipe are all connected through bearings.

[0014] Preferably, the brush positions of the two cleaning brushes are attached to the top of the filter screen, and the two ends of the connecting plate are hingedly connected with the outside of the transmission rod and the top of the cleaning brush.

[0015] Preferably, the bottom of the deslagging pipe is provided in an inclined manner, and the bottom of the deslagging pipe penetrates the right side of the reaction tower.

[0016] Preferably, the outside of the upper end of the deslagging pipe is provided with deslagging ports at equal angles, the inside of the deslagging port is slidably connected with a blocking plate, the outside of the transmission rod is sleeved with a reciprocating screw rod, a ratchet assembly is installed between the reciprocating screw rod and the transmission rod, the outside of the reciprocating screw rod is sleeved with a moving plate, the outside of the moving plate and the top of the four blocking plates are fixedly connected through a traction rope, and a return spring is installed between the top of the blocking plate and the inner wall of the deslagging pipe.

[0017] Preferably, the moving plate is threadedly connected with the reciprocating screw rod, and the rear surface of the moving plate is slidingly connected with the inner wall of the slag discharge pipe.

[0018] Compared with the prior art, the boiler tail gas desulfurization device with the uniform spraying mechanism has the advantages that: the device adopts a novel structure design, and the specific contents are as follows:

[0019] (1) The rotating rod is driven to rotate by the motor, so that the rotating rod drives the transmission rod to rotate through the bevel gear set, the movable pipe drives a plurality of nozzles to rotate, so that the desulfurization liquid is more uniformly sprayed and covered, and the contact area between the flue gas and the desulfurization liquid is increased, which helps to more fully absorb sulfur dioxide in the flue gas and improve the desulfurization efficiency.

[0020] Further, the flue gas enters the reaction tower from the gas inlet and moves downward, so that the filter screen can filter the larger impurities in the flue gas, and then the desulfurization liquid is sprayed out through the nozzle to contact the flue gas and produce a chemical reaction to convert SO2 in the flue gas into harmless substances, and then the flue gas after desulfurization treatment is discharged through the exhaust port.

[0021] (2) When the transmission rod rotates, the connecting plate drives the cleaning brush to rotate along the surface of the filter screen to clean, so that the filter holes of the filter screen are not blocked by impurities to affect the filtering effect, and the subsequent filtering effect is improved.

[0022] (3) When the rotating rod rotates forward, the reciprocating screw rod does not rotate, and when the rotating rod rotates reversely, the reciprocating screw rod is driven to rotate by the ratchet assembly, so that the moving plate moves upward, and the blocking plate is pulled upward by the traction rope, at this time, the impurities cleaned out enter the inside of the slag discharge pipe from the slag discharge port and are discharged, thereby facilitating the treatment of the filtered impurities. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a main sectional structure schematic view of the utility model;

[0024] Figure 2 It is a reaction tower three-dimensional structure schematic view of the utility model;

[0025] Figure 3 It is a filter screen and movable pipe three-dimensional structure schematic view of the utility model;

[0026] Figure 4 It is a slag discharge pipe three-dimensional structure schematic view of the utility model;

[0027] Figure 5 It is a reciprocating screw rod and moving plate three-dimensional structure schematic view of the utility model;

[0028] Figure 6The utility model discloses Figure 1 Amplification structure schematic diagram at middle A place;

[0029] Figure 7 The utility model discloses Figure 1 Amplification structure schematic diagram at middle B place.

[0030] In the figure: 1, reaction tower;2, gas inlet;3, exhaust port;4, liquid storage tank;5, movable pipe;6, connecting pipe;7, filter screen;8, deslagging pipe;9, connecting plate;10, transmission rod;11, cleaning brush;12, rotating rod;13, reciprocating screw;14, moving plate;15, plugging plate;16, deslagging port;17, traction rope;18, return spring;19, ratchet assembly. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0032] Please refer to Figures 1-7 The utility model provides the following technical scheme: a boiler tail gas desulfurization device with uniform spraying mechanism;

[0033] Embodiment one: in order to solve the atomizing nozzle in the prior art is fixed, cannot be adjusted, make the spraying range is limited, lead to some in the dead angle position's flue gas is easy to spray not, make the desulfurization liquid cannot be evenly sprayed into the flue gas, in turn reduce the desulfurization efficiency problem, therefore discloses the following scheme, specific reference Figures 1-3 As shown in the figure, including reaction tower 1, the upper right side of reaction tower 1 is fixed with gas inlet 2, and the lower left side of reaction tower 1 is fixed with exhaust port 3, and the top of reaction tower 1 is provided with liquid storage tank 4;The inside of reaction tower 1 is provided with filter screen 7, and the upper inside of reaction tower 1 is connected with movable pipe 5, and the bottom of movable pipe 5 is installed with nozzle at equal intervals, and connecting pipe 6 is fixedly connected between movable pipe 5 and liquid storage tank 4.

[0034] The lower right side of the reaction tower 1 is fixedly provided with a motor, the middle position of the filter screen 7 is penetrated and fixedly provided with a residue discharge pipe 8, the upper surface of the inside of the residue discharge pipe 8 is penetrated and connected with a transmission rod 10, the inside of the connecting pipe 6 is provided with a valve, the inside of the liquid storage tank 4 and the inside of the movable pipe 5 are communicated through the connecting pipe 6, the bottom of the connecting pipe 6 and the inside of the movable pipe 5 are rotationally connected, the top of the transmission rod 10 and the bottom of the movable pipe 5 are fixedly connected, and the lower right side of the inside of the reaction tower 1 is connected with a rotating rod 12; the left end of the rotating rod 12 and the bottom of the transmission rod 10 are transmissionally connected through a bevel gear set.

[0035] The flue gas enters into the inside of the reaction tower 1 from the air inlet 2, and flows downward through the fan at the upper side of the reaction tower 1, and at the same time, the larger impurities in the flue gas can be filtered through the filter screen 7, then the valve on the connecting pipe 6 is opened, so that the desulfurization liquid in the inside of the liquid storage tank 4 enters into the movable pipe 5, at this time, the desulfurization liquid is sprayed out through a plurality of nozzles, so that the flue gas is contacted with the desulfurization liquid and chemical reaction is generated, SO2 in the flue gas is converted into harmless substances, then the flue gas after desulfurization treatment is discharged through the air outlet 3, then the motor is started, the rotating rod 12 is driven to rotate through the motor, so that the rotating rod 12 drives the transmission rod 10 to rotate through the bevel gear set, so that the movable pipe 5 drives the plurality of nozzles to rotate, so that the desulfurization liquid is more uniformly sprayed and covered, and the contact area between the flue gas and the desulfurization liquid is increased, which is helpful to more fully absorb SO2 in the flue gas, improve the desulfurization efficiency, and at the same time, the sewage is discharged from the sewage outlet at the bottom of the reaction tower 1.

[0036] In the embodiment two, the cleaning brushes 11 are rotated, so that the impurities on the surface of the filter screen 7 can be automatically cleaned, and specific reference can be made to the drawings of Figure 1 、 Figure 3 and Figure 7 , the top of the filter screen 7 is symmetrically provided with the cleaning brushes 11 about the center point of the transmission rod 10, the two cleaning brushes 11 and the transmission rod 10 are connected through the connecting plates 9, the brush positions of the two cleaning brushes 11 are in close contact with the top of the filter screen 7, the two ends of the connecting plate 9 are hingedly connected with the outside of the transmission rod 10 and the top of the cleaning brush 11, the filter screen 7 is provided in a funnel shape, the transmission rod 10 and the residue discharge pipe 8 are bearingly connected, the right end of the rotating rod 12 penetrates through the right side of the reaction tower 1, and the right end of the rotating rod 12 and the output end of the motor are fixedly connected, and the rotating rod 12 and the reaction tower 1 and the residue discharge pipe 8 are bearingly connected.

[0037] When the transmission rod 10 rotates, the cleaning brushes 11 are driven to rotate along the surface of the filter screen 7 through the connecting plates 9, so that the filter hole positions of the filter screen 7 are prevented from being blocked by impurities, and the filtering effect is improved.

[0038] Different from the embodiment two, the embodiment three can open the slag discharge port 16 by rotating the reciprocating screw rod 13, and then facilitate the discharge of the filtered impurities, and the specific reference Figure 1 and Figures 4-6 As shown in the figure, the bottom of the slag discharge pipe 8 is inclined, and the bottom of the slag discharge pipe 8 penetrates the right side of the reaction tower 1, the outer side of the upper end of the slag discharge pipe 8 is provided with a slag discharge port 16 at equal angles, and the inside of the slag discharge port 16 is slidably connected with a blocking plate 15, the outer side of the transmission rod 10 is sleeved with a reciprocating screw rod 13, and the reciprocating screw rod 13 and the transmission rod 10 are provided with a ratchet assembly 19, the outer side of the reciprocating screw rod 13 is sleeved with a moving plate 14, the outer side of the moving plate 14 and the top of the four blocking plates 15 are fixedly connected through a traction rope 17, and the top of the blocking plate 15 and the inner wall of the slag discharge pipe 8 are provided with a reset spring 18, the moving plate 14 and the reciprocating screw rod 13 are threadedly connected, the back of the moving plate 14 and the inner wall of the slag discharge pipe 8 are slidably connected, and the reciprocating screw rod 13 and the slag discharge pipe 8 are bearing connected.

[0039] When the rotating rod 12 rotates forward, the reciprocating screw rod 13 does not rotate, and when the rotating rod 12 rotates reversely, the reciprocating screw rod 13 is driven to rotate by the ratchet assembly 19, so that the moving plate 14 moves upward, and the blocking plate 15 is pulled upward by the traction rope 17, at this time, the impurities cleaned out will enter the inside of the slag discharge pipe 8 from the slag discharge port 16 and be discharged, thereby facilitating the treatment of the filtered impurities, and then when the impurities are discharged, the moving plate 14 moves downward with the continuous rotation of the reciprocating screw rod 13, and the traction rope 17 no longer pulls the blocking plate 15, so that the blocking plate 15 resets under the elastic force of the reset spring 18 and blocks the slag discharge port 16.

[0040] The contents not described in detail in the specification belong to the prior art known by the person skilled in the art.

[0041] Although the utility model has been described in detail with reference to the foregoing embodiments, the skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A boiler tail gas desulfurization device provided with a uniform spraying mechanism, comprising a reaction tower (1), a gas inlet (2) is fixedly arranged at the upper right side of the reaction tower (1), and a gas outlet (3) is fixedly arranged at the lower left side of the reaction tower (1), and a liquid storage tank (4) is installed at the top of the reaction tower (1); A filter screen (7) is arranged in the reaction tower (1), an active pipe (5) is connected to the upper part of the reaction tower (1), a plurality of nozzles are equidistantly arranged at the bottom of the active pipe (5), and a connecting pipe (6) is fixedly connected between the active pipe (5) and the liquid storage tank (4); characterized in that A motor is fixedly arranged at the lower right side of the reaction tower (1), a slag discharge pipe (8) penetrates through the middle position of the filter screen (7), a transmission rod (10) is connected to the upper surface of the slag discharge pipe (8), and a rotating rod (12) is connected to the lower right side of the reaction tower (1); The left end of the rotating rod (12) is in transmission connection with the bottom of the transmission rod (10) through a bevel gear set, the top of the filter screen (7) is symmetrically provided with a cleaning brush (11) about the center point of the transmission rod (10), and the two cleaning brushes (11) are connected with the transmission rod (10) through a connecting plate (9).

2. A boiler tail gas desulphurization unit provided with a uniform spraying mechanism as claimed in claim 1, wherein: A valve is arranged in the connecting pipe (6), the liquid storage tank (4) and the active pipe (5) are connected through the connecting pipe (6), and the bottom of the connecting pipe (6) is in rotary connection with the inside of the active pipe (5), and the top of the transmission rod (10) is fixedly connected with the bottom of the active pipe (5).

3. A boiler tail gas desulphurization unit provided with a uniform spraying mechanism as claimed in claim 1, wherein: The filter screen (7) is in the shape of a funnel, the transmission rod (10) is in bearing connection with the slag discharge pipe (8), the right end of the rotating rod (12) penetrates through the right side of the reaction tower (1), and the right end of the rotating rod (12) is fixedly connected with the output end of the motor, and the rotating rod (12) is in bearing connection with the reaction tower (1) and the slag discharge pipe (8).

4. A boiler tail gas desulphurization unit provided with a uniform spraying mechanism as claimed in claim 1, wherein: The brush positions of the two cleaning brushes (11) are in close contact with the top of the filter screen (7), and the two ends of the connecting plate (9) are in hinged connection with the outer side of the transmission rod (10) and the top of the cleaning brush (11) respectively.

5. A boiler flue gas desulphurization device provided with a uniform spraying mechanism according to claim 1, characterized in that: The bottom of the slag discharge pipe (8) is inclined, and the bottom of the slag discharge pipe (8) penetrates through the right side of the reaction tower (1).

6. A boiler flue gas desulphurization device provided with a uniform spraying mechanism according to claim 1, characterized in that: A slag discharge port (16) is formed at the outer side of the upper end of the slag discharge pipe (8) at equal angles, a blocking plate (15) is slidably connected in the slag discharge port (16), a reciprocating screw rod (13) is sleeved on the outer side of the transmission rod (10), a ratchet assembly (19) is arranged between the reciprocating screw rod (13) and the transmission rod (10), a moving plate (14) is sleeved on the outer side of the reciprocating screw rod (13), the outer side of the moving plate (14) is fixedly connected with the top of the four blocking plates (15) through a traction rope (17), and a reset spring (18) is arranged between the top of the blocking plate (15) and the inner wall of the slag discharge pipe (8).

7. A boiler flue gas desulphurization device provided with a uniform spraying mechanism according to claim 6, characterized in that: The mobile plate (14) is threadedly connected with the reciprocating screw rod (13), and the back of the mobile plate (14) is slidingly connected with the inner wall of the slag discharge pipe (8), and the reciprocating screw rod (13) is bearingly connected with the slag discharge pipe (8).

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