A desulfurization tower
By designing a flexible packing layer and a central hole, combined with a spray method controlled by a circulating pump, the adaptability problem of existing desulfurization towers to changes in flue gas emissions has been solved, achieving a highly efficient flue gas desulfurization effect.
Patent Information
- Application Number
- CN202510595727.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-09
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2045-05-09
AI Technical Summary
When faced with changes in flue gas emissions, the existing desulfurization tower cannot adjust the obstruction effect of the packing layer on the flue gas, resulting in inadequate desulfurization efficiency.
A desulfurization tower was designed, including a storage tank, a first spray pipe, a second spray pipe, and a packing layer. The packing layer is made of flexible or elastic material and is equipped with a central hole and spray pipes. The spraying mode of the spray liquid is controlled by a circulating pump to adapt to changes in flue gas emissions.
It achieves high desulfurization efficiency despite changes in flue gas emissions, prevents packing layer blockage, and adapts to changes in flue gas flow.
Smart Images
Figure CN120268188B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of flue gas treatment, in particular to a desulfurization tower. BACKGROUND
[0002] The desulfurization tower is a commonly used flue gas treatment equipment, mainly used for removing sulfur dioxide in industrial flue gas. The existing desulfurization tower mainly generates small droplets through a spraying device to contact and absorb sulfur dioxide in industrial flue gas. In order to improve the flue gas desulfurization efficiency, a packing layer is arranged below the spraying device to increase the contact time of flue gas and spraying liquid and improve the desulfurization efficiency. However, in actual use, the packing layer has a certain hindering effect on the upward movement of flue gas and cannot be adjusted, so that the desulfurization tower cannot adapt to the change of flue gas emission. SUMMARY
[0003] In view of the problems existing in the prior art, the present application provides a desulfurization tower to solve the above technical problems.
[0004] In order to achieve the above application purpose, one technical scheme provided by the present application is as follows:
[0005] A desulfurization tower, comprising a desulfurization tower body, an air inlet and an air outlet are arranged on the desulfurization tower body, the air inlet and the air outlet are in communication with the inside of the desulfurization tower body, a liquid storage pool, a packing layer and a first spraying pipe are arranged in the inside of the desulfurization tower body from bottom to top, a first nozzle is arranged on the first spraying pipe, the air outlet is located above the first spraying pipe, the air inlet is located between the liquid storage pool and the packing layer, a liquid supply pipe in communication with the liquid storage pool is fixed on the desulfurization tower body, the first spraying pipe is connected with the liquid supply pipe, a circulating pump is installed on the liquid supply pipe or the first spraying pipe, the packing layer comprises a first packing layer, a second packing layer and a third packing layer, the outer edge of the first packing layer is connected with the desulfurization tower body, a first center hole is arranged in the middle part of the first packing layer, a second center hole is arranged in the middle part of the second packing layer, the inner edge of the second packing layer is connected with the inner edge of the first packing layer as a whole, and the outer edge of the second packing layer is connected with the edge of the third packing layer as a whole.
[0006] Preferably, a second spraying pipe is arranged in the inside of the desulfurization tower body, a second nozzle is arranged on the second spraying pipe, the second spraying pipe is located below the packing layer, the second spraying pipe is in communication with the first spraying pipe, and a control valve is arranged on the second spraying pipe; the air inlet is located between the liquid storage pool and the second spraying pipe.
[0007] Preferably, the circulating pump is installed on the liquid supply pipe, and a liquid discharge valve is also installed on the liquid supply pipe, the liquid discharge valve being located at the end of the liquid supply pipe away from the liquid storage pool relative to the circulating pump; the connection position of the first spray pipe and the liquid supply pipe is located between the circulating pump and the liquid discharge pipe.
[0008] Preferably, a water baffle is arranged between the first spray pipe and the air exhaust pipe.
[0009] Preferably, the filler layer is made of flexible or elastic material.
[0010] Preferably, the first filler layer, the second filler layer and the third filler layer are made of flexible material and are correspondingly provided with elastic inner liners with holes, and the first filler layer, the second filler layer and the third filler layer are connected as a whole through the corresponding inner liners.
[0011] Preferably, a first filter screen is arranged between the second spray pipe and the air inlet, and a second filter screen is arranged between the air inlet and the liquid storage pool, the first filter screen and the second filter screen are made of spring sheets; the middle height of the second filter screen is greater than the height of the edge, and smoothly transitions from the middle position to the edge position, a circular ring guide rail is arranged in the middle of the second filter screen, a moving body capable of sliding along the circular ring guide rail is arranged on the circular ring guide rail, a first traction rope is fixed to the top of the moving body, and a second traction rope is fixed to the bottom end of the moving body, the first traction rope is connected with the first filter screen, and the second traction rope is connected with the second filter screen.
[0012] Preferably, the moving body is a sphere, a first sliding groove for limiting the sphere from leaving the circular ring guide rail is arranged at the bottom of the sphere, a support column is fixed to the bottom surface of the circular ring guide rail in the circumferential direction, the support column is fixed to the second filter screen, and the diameter of the support column is less than or equal to the width of the circular ring guide rail; the first traction rope and the second traction rope are located on the inside of the sphere.
[0013] Preferably, the moving body is a sphere, a second sliding groove is arranged at the top of the circular ring guide rail, a sliding block capable of moving along the second sliding groove is arranged in the second sliding groove, and the bottom of the sphere is fixedly connected with the sliding block; the first traction rope and the second traction rope are located on the inside of the sphere.
[0014] Preferably, the first filter screen is in the shape of a sawtooth or a wave.
[0015] The desulfurization tower in the application, when in use, first opens the circulating pump, and the spray liquid enters the first spray pipe and is sprayed downward through the first spray head, in the process, the flue gas enters the desulfurization tower body through the gas inlet, in the case of small flue gas emission: the flue gas moves upward through the first filler layer, the second filler layer and the third filler layer, and contacts the spray liquid in the process of upward movement, so as to achieve the purpose of desulfurization; in the case of large flue gas emission: the flue gas is greatly hindered in the process of upward movement through the first filler layer, and when moving upward through the first center hole and the second center hole, the third filler layer and the second filler layer are pried open, so as to facilitate the upward movement of the flue gas, and the flue gas contacts the spray liquid in the process of upward movement, so as to achieve the purpose of desulfurization; thus, it can be seen that the desulfurization tower in the application is suitable for the case of changing flue gas emission. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 The structure schematic diagram of the desulfurization tower in embodiment 1 is shown;
[0017] Figure 2 The internal structure schematic diagram of the filler layer is shown;
[0018] Figure 3 The structure schematic diagram of the desulfurization tower in embodiment 2 is shown;
[0019] Figure 4 The connection state schematic diagram of a circular ring guide rail and a ball is shown;
[0020] Figure 5 The bottom view of the ball is shown;
[0021] Figure 6 The structure schematic diagram of a circular ring guide rail is shown;
[0022] Markings in the drawings:
[0023] Desulfurization tower body 1, gas inlet 2, gas outlet 3, liquid storage pool 4, filler layer 5, first spray pipe 6, first spray head 7, liquid supply pipe 8, second spray pipe 9, second spray head 10, control valve 11, liquid discharge valve 12, water baffle 13, first filter screen 14, second filter screen 15, circular ring guide rail 16, ball 17, first traction rope 18, second traction rope 19, first sliding groove 20, support column 21, second sliding groove 22, sliding block 23.
[0024] First filler layer 5-1, second filler layer 5-2, third filler layer 5-3, first center hole 5-4, second center hole 5-5, circulating pump 8-1. DETAILED DESCRIPTION
[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the protection scope of the present application.
[0026] Embodiment 1, please refer to Figure 1 and Figure 2 The embodiment provides a desulfurization tower, which comprises a desulfurization tower body 1, an air inlet 2 and an air outlet 3 are arranged on the desulfurization tower body, the air inlet and the air outlet are in communication with the inside of the desulfurization tower body, a liquid storage pool 4, a filler layer 5 and a first spraying pipe 6 are sequentially arranged in the inside of the desulfurization tower body from the bottom end to the top end, a first nozzle 7 is arranged on the first spraying pipe, the air outlet is located above the first spraying pipe, the air inlet is located between the liquid storage pool and the filler layer, a liquid supply pipe 8 in communication with the liquid storage pool is fixed on the desulfurization tower body, the first spraying pipe is connected with the liquid supply pipe, a circulating pump 8-1 is installed on the liquid supply pipe or the first spraying pipe, the filler layer comprises a first filler layer 5-1, a second filler layer 5-2 and a third filler layer 5-3, the outer edge of the first filler layer is connected with the desulfurization tower body, a first center hole 5-4 is arranged in the middle part of the first filler layer, a second center hole 5-5 is arranged in the middle part of the second filler layer, the inner edge of the second filler layer is connected with the inner edge of the first filler layer as a whole, the outer edge of the second filler layer is connected with the edge of the third filler layer as a whole, generally, the edge of the third filler layer and the outer edge of the second filler layer are arranged close to the inner wall of the desulfurization tower body.
[0027] When the above-mentioned desulfurization tower is used, first, the circulating pump is started, the spraying liquid enters the first spraying pipe and is sprayed downward through the first nozzle, in this process, the flue gas enters the desulfurization tower body through the air inlet, in the case that the flue gas emission amount is small: the flue gas moves upward through the first filler layer, the second filler layer and the third filler layer, in the process of moving upward, the flue gas contacts with the spraying liquid, so that the desulfurization purpose is achieved; in the case that the flue gas emission amount is large: the flue gas is greatly hindered in the process of moving upward through the first filler layer, when moving upward through the first center hole and the second center hole, the third filler layer and the second filler layer are pried open, so as to facilitate the upward movement of the flue gas, in the process of moving upward, the flue gas contacts with the spraying liquid, so that the desulfurization purpose is achieved; it can be seen that the desulfurization tower in the embodiment can adapt to the change of the flue gas emission amount; when used in practice, an induced draft fan and / or an induced draft duct can also be installed on the air outlet.
[0028] In actual production: the second spray pipe 9 can also be arranged inside the desulfurization tower body, the second spray pipe is provided with the second spray head 10, the second spray pipe is located below the filler layer, the gas inlet is located between the liquid pool and the second spray pipe; the second spray pipe is communicated with the first spray pipe, the control valve 11 is arranged on the second spray pipe, and of course the control valve can also be arranged on the first spray pipe; in the case that the flue gas emission is large, the second spray head is controlled to spray downward through the control valve, so that the contact surface of the flue gas and the spray liquid is increased; in the embodiment, the circulating pump is installed on the liquid supply pipe, the liquid drain valve 12 is also installed on the liquid supply pipe, the liquid drain valve is located at the end of the liquid supply pipe away from the liquid pool relative to the circulating pump, so that the spray liquid is replaced; the connection position of the first spray pipe and the liquid supply pipe is located between the circulating pump and the liquid drain pipe.
[0029] In order to prevent the spray liquid from being discharged out of the desulfurization tower with the flue gas, the water baffle 13 can also be arranged between the first spray pipe and the exhaust pipe.
[0030] In the embodiment: the filler layer is made of flexible or elastic material, such as spring sheet or rubber sheet; of course, the first filler layer, the second filler layer and the third filler layer can also be made of flexible material and correspondingly provided with a perforated elastic lining, and the first filler layer, the second filler layer and the third filler layer are connected as a whole through the corresponding lining.
[0031] Embodiment 2, please refer to Figures 3-6 , the structure of embodiment 2 and embodiment 1 is basically the same, the difference is that: the first filter screen 14 is arranged between the second spray pipe and the gas inlet, the second filter screen 15 is arranged between the gas inlet and the liquid pool, and the first filter screen and the second filter screen are made of spring sheet; the middle height of the second filter screen is greater than the edge height, and smoothly transitions from the middle position to the edge position, the circular ring guide rail 16 is arranged in the middle of the second filter screen, the ball 17 capable of sliding along the circular ring guide rail is arranged on the circular ring guide rail, the first traction rope 18 is fixed to the top of the ball, the second traction rope 19 is fixed to the bottom end of the moving body, the first traction rope is connected with the first filter screen, and the second traction rope is connected with the second filter screen; in actual production, the bottom surface of the circular ring guide rail is fixed with the support column 21 in the circumferential direction, the support column is fixed on the second filter screen, the diameter of the support column is less than or equal to the width of the circular ring guide rail, the bottom of the ball is provided with the first sliding groove 20 for limiting the ball from separating from the circular ring guide rail, and the first traction rope and the second traction rope are located on the inner side of the ball;
[0032] The structure, when in use, after the flue gas enters the desulfurization tower body through the gas inlet, the dust and other particulate matters in the flue gas are filtered out by the first filter screen and move upward, which can prevent the dust and other particulate matters in the flue gas from contacting the filler layer and causing the filler layer to be blocked; the second spray head sprays downward to clean the first filter screen, effectively preventing the particulate matters from adhering to the first filter screen for a long time, affecting the air permeability of the first filter screen, and making the particulate matters finally fall on the second filter screen; when the gas enters through the gas inlet, the airflow can push the ball to move along the circular guide rail when passing through the ball, and in the process of the ball moving along the circular guide rail, the first traction rope and the second traction rope pull and loosen the first filter screen and the second filter screen, so that the first filter screen and the second filter screen vibrate, which is beneficial to the cleaning of the first filter screen and the movement of the particulate matters on the second filter screen to the edge, preventing the second filter screen from being blocked. Of course, the external part of the desulfurization tower body corresponding to the second filter screen can also be provided with an access hole and the like to facilitate the periodic cleaning of the second filter screen; in order to facilitate the first filter screen to be deformed under stress and increase the filtering area, the shape of the first filter screen is sawtooth-shaped or wave-shaped.
[0033] As a deformation, the first sliding groove can also not be provided on the ball, and a second sliding groove 22 is directly provided on the top of the circular guide rail, a sliding block 23 capable of moving along the second sliding groove is arranged in the second sliding groove, and the bottom of the ball is fixedly connected with the sliding block; similarly, the first traction rope and the second traction rope are located on the inner side of the ball, so that the ball can also move along the circular guide rail under the action of the airflow. In addition, the ball can also be replaced by a fan blade, a plate or other moving bodies, which can be easily thought of by those skilled in the art, and will not be described here.
[0034] It should be noted that the "one embodiment", "embodiment", "exemplary embodiment", "some embodiments" and the like mentioned in the specification mean that the described embodiment can include a specific feature, structure or characteristic, but not necessarily every embodiment includes the specific feature, structure or characteristic. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when a specific feature, structure or characteristic is described in connection with an embodiment, it is within the knowledge of those skilled in the art to realize such feature, structure or characteristic in connection with other embodiments described explicitly or implicitly.
[0035] It should be easily understood that "on", "above" and "over" in the present disclosure should be interpreted in the broadest way, so that "on" not only means "directly on", but also includes the meaning of "on" with intermediate features or layers therebetween, and "above" or "over" not only includes the meaning of "above" or "over", but also can include the meaning of "above" or "over" without intermediate features or layers therebetween (i.e. directly on).
[0036] In addition, spatially relative terms, such as "beneath", "below", "lower", "above", "upper", and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. The spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. The devices can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
[0037] It is to be understood that the terminology used herein such as "first" and "second" are only used to distinguish one entity or action from another entity or action, and does not necessarily require or imply there is any such actual relationship or order between such entities or actions. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the statement "comprising a means" does not exclude the existence of additional identical elements in the process, method, article, or apparatus that includes the stated element.
[0038] While embodiments of the present application have been shown and described herein, it is to be understood that the application is not limited to these embodiments. Rather, many modifications, changes, substitutions, and alterations can be made thereto without departing from the spirit and scope of the present application, which is defined by the appended claims and their equivalents.
Claims
1. A desulfurization tower, comprising a desulfurization tower body (1), wherein an air inlet (2) and an exhaust outlet (3) are provided on the desulfurization tower body, both the air inlet and the exhaust outlet being connected to the interior of the desulfurization tower body, wherein a liquid storage tank (4), a packing layer (5) and a first spray pipe (6) are sequentially arranged from bottom to top inside the desulfurization tower body, wherein a first spray head (7) is provided on the first spray pipe, the exhaust outlet is located above the first spray pipe, the air inlet is located between the liquid storage tank and the packing layer, a liquid supply pipe (8) connected to the liquid storage tank is fixed on the desulfurization tower body, the first spray pipe is connected to the liquid supply pipe, and a circulation pump (8-1) is installed on the liquid supply pipe or the first spray pipe, characterized in that: The packing layer includes a first packing layer (5-1), a second packing layer (5-2), and a third packing layer (5-3). The outer edge of the first packing layer is connected to the desulfurization tower body, and a first central hole (5-4) is provided in the middle. The second packing layer is provided with a second central hole (5-5) in the middle. The inner edge of the second packing layer is connected to the inner edge of the first packing layer as a whole, and the outer edge of the second packing layer is connected to the edge of the third packing layer as a whole. When the flue gas encounters significant resistance during its upward movement through the first packing layer, it can push apart the third and second packing layers as it moves upward through the first and second central holes.
2. A desulfurization tower according to claim 1, characterized in that: The desulfurization tower body is provided with a second spray pipe (9), and a second spray head (10) is provided on the second spray pipe. The second spray pipe is located below the packing layer. The second spray pipe is connected to the first spray pipe. A control valve (11) is provided on the second spray pipe. The air inlet is located between the liquid storage tank and the second spray pipe.
3. A desulfurization tower according to claim 1, characterized in that: The circulating pump is installed on the liquid supply pipe, and a drain valve (12) is also installed on the liquid supply pipe. The drain valve is located at the end of the circulating pump that is closer to the liquid supply pipe and farther from the liquid storage tank. The connection point between the first spray pipe and the liquid supply pipe is located between the circulation pump and the drain pipe.
4. A desulfurization tower according to claim 1, characterized in that: A water baffle (13) is provided between the first spray pipe and the exhaust port.
5. A desulfurization tower according to claim 1, characterized in that: The filler layer is made of a flexible or elastic material.
6. A desulfurization tower according to claim 2, characterized in that: The first, second, and third filler layers are made of flexible materials and are provided with perforated elastic liners. The first, second, and third filler layers are connected as a whole by the corresponding liners.
7. A desulfurization tower according to claim 2, characterized in that: A first filter screen (14) is provided between the second spray pipe and the air inlet, and a second filter screen (15) is provided between the air inlet and the liquid storage tank. The first filter screen and the second filter screen are made of spring sheets. The height of the middle part of the second filter screen is greater than the height of the edge, and it transitions smoothly from the middle part to the edge. A circular guide rail (16) is provided in the middle part of the second filter screen. A moving body that can slide along the circular guide rail is provided on the circular guide rail. A first traction rope (18) is fixed to the top of the moving body, and a second traction rope (19) is fixed to the bottom of the moving body. The first traction rope is connected to the first filter screen, and the second traction rope is connected to the second filter screen.
8. A desulfurization tower according to claim 7, characterized in that: The moving body is a sphere (17). The bottom of the sphere is provided with a first groove (20) for limiting the sphere from leaving the annular guide rail. The bottom surface of the annular guide rail is fixed with a support column (21) in the circumferential direction. The support column is fixed on the second filter screen. The diameter of the support column is less than or equal to the width of the annular guide rail. The first traction rope and the second traction rope are located inside the sphere.
9. A desulfurization tower according to claim 7, characterized in that: The moving body is a sphere, and the top of the annular guide rail is provided with a second groove (22). A slider (23) that can move along the second groove is provided in the second groove, and the bottom of the sphere is fixedly connected to the slider. The first traction rope and the second traction rope are located inside the sphere.
10. A desulfurization tower according to claim 8 or 9, characterized in that: The first filter screen is serrated or wavy in shape.
Citation Information
Patent Citations
Novel packing absorption tower
CN107670470A
Saturated self-deoiling oily waste gas exhaust pipe
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