A fixed bed desulfurization reactor
By designing a fixed bed desulfurization reactor in the desulfurization tower, the secondary reaction between the exhaust gas and the desulfurizer is achieved by using a circular support beam and the second desulfurization device, and the tricyclic desulfurization is achieved through the partition, the problem of insufficient reaction in the prior art is solved, and the desulfurization effect and efficiency are improved.
Patent Information
- Application Number
- CN202421417385.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-20
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-06-20
AI Technical Summary
In the existing desulfurization tower technology, the reaction between the desulfurizer and the exhaust gas is insufficient, resulting in waste of desulfurizer and poor desulfurization effect.
A fixed bed desulfurization reactor is designed. By sequentially setting a circular support beam and a second desulfurization device above the feed equalizer, the secondary reaction between the exhaust gas and the desulfurization agent is realized, and the tower body is separated by a partition to achieve three desulfurization.
The full reaction between waste gas and desulfurization agent is achieved, the desulfurization effect is improved, and the waste of desulfurization agent is reduced.
Smart Images
Figure CN222694394U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of desulfurization towers, in particular to a fixed bed desulfurization reactor. Background Art
[0002] In the processing and manufacturing industry, the use of coal is very common. As a relatively cheap energy source, coal plays an important role in the production process. After the coal is burned, its flue gas will be mixed with sulfur-containing and nitrate-containing waste gases, which will be directly discharged into the air and have an adverse effect on the atmosphere. Therefore, the flue gas needs to be effectively treated;
[0003] The current method for desulfurization of waste gas is to discharge the waste gas into a desulfurization tower and inject a desulfurizer into the desulfurization tower. The desulfurizer then reacts with the waste gas to perform desulfurization. However, this desulfurization method has the problem of insufficient reaction of the desulfurizer, which leads to a waste of the desulfurizer. At the same time, the insufficient reaction of the desulfurizer will also lead to poor desulfurization effect. Utility Model Content
[0004] The purpose of the utility model is to provide a fixed bed desulfurization reactor to solve the problems raised in the above background technology.
[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a fixed bed desulfurization reactor, comprising a tower body, the lower part of the outer wall of the tower body is connected to be provided with an air inlet, the upper part of the inner wall of the tower body is connected to be provided with an air outlet, a first desulfurization device is arranged in the tower body, the first desulfurization device comprises a desulfurizer filling pipe, the top end of the desulfurizer filling pipe passes through the top end of the tower body and is fixedly connected with a first desulfurizer filling port, a feed distributor is fixed with a bracket in the tower body at the bottom end of the desulfurizer filling pipe, the cross-section of the feed distributor is in a conical shape with an opening downward, a conical grille with an opening upward is arranged in the tower body below the feed distributor, the inner wall of the tower body above the air inlet is fixedly connected to the outer periphery of the top end of the conical grille, and the bottom end of the conical grille is provided with an emptying pipe that passes through the bottom end of the tower body and extends out of the bottom end of the tower body.
[0006] Furthermore, it also includes a second desulfurization device and a circular support beam which are sequentially arranged in the tower body above the feed distributor from top to bottom, the outer periphery of the circular support beam is fixedly connected to the inner wall of the tower body, the bottom end of the desulfurizer filling pipe passes through the circular support beam and extends to above the feed distributor, the second desulfurization device includes two symmetrically arranged second desulfurization components, the second desulfurization component includes a first grid plate and a second grid plate, the top and left and right ends of the first grid plate and the second grid plate are fixedly connected to the inner wall of the tower body, the bottom ends of the first grid plate and the second grid plate are fixedly connected to the top of the circular support beam, a cavity is formed between the first grid plate and the second grid plate of the same component, the top of the cavity is symmetrically and connectedly provided with two second desulfurizer filling ports arranged at the top of the tower body, the bottom end of the inner wall of the cavity is symmetrically and connectedly provided with two discharge ports arranged on the outer wall of the tower body, and a plurality of first air vents are evenly arranged on the circular support beam between the two second grid plates.
[0007] Furthermore, a plurality of second through holes are evenly arranged on the circular support beam located below the cavity, and the second through holes are connected to the inner wall of the cavity.
[0008] Furthermore, a supporting net is fixedly disposed on the top of the second through hole.
[0009] Furthermore, there is one air outlet, which is arranged between two second grid plates. A partition is arranged in the middle between the two second grid plates. The outer wall of the partition is respectively sealed with the outer wall of the opposite side of the two second grid plates and the inner wall of the tower body. The desulfurizer filling pipe passes through the partition.
[0010] Furthermore, a first inlet is provided on the outer wall of the tower body between the circular support beam and the partition.
[0011] Furthermore, a second inlet is provided on the outer wall of the tower body between the partition and the air outlet.
[0012] Furthermore, a first sealing plate is provided at the top of the inner wall of the tower body between the two second grid plates, and the outer wall of the first sealing plate is respectively sealed with the outer wall on the opposite side of the two second grid plates and the inner wall of the tower body; two second sealing plates are respectively provided at the top of the inner wall of the tower body away from each other of the two first grid plates, and the outer wall of the second sealing plate is respectively sealed with the outer wall of the first grid plate and the inner wall of the tower body.
[0013] The beneficial effects achieved by the utility model are:
[0014] 1. By sequentially arranging a circular support beam and a second desulfurization device from bottom to top above the feed uniform distributor, the exhaust gas can further react with the desulfurizer in the cavity after being desulfurized by the desulfurizer in the conical cylinder grid, thereby achieving the effect of secondary desulfurization. At the same time, the conical cylinder grid and the first grid plate and the second grid plate in the same group can store and fix the desulfurizer, so that the exhaust gas can fully react with the desulfurizer;
[0015] 2. By setting a partition in the middle between the two second grid plates, the tower body between the two second grid plates is divided into two layers, and at the same time, the air outlet is one and set between the two second grid plates, so that the exhaust gas entering the tower body at the end of the first grid plate away from the second grid plate needs to pass through the desulfurizer in the cavity again, thereby achieving the effect of three desulfurization, thereby avoiding the problem of insufficient reaction of the desulfurizer and poor exhaust gas desulfurization effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a front cross-sectional view of a fixed bed desulfurization reactor in Example 1;
[0017] Figure 2 for Figure 1 Cross-sectional view along AA direction;
[0018] Figure 3 It is a front cross-sectional view of a fixed bed desulfurization reactor in Example 2;
[0019] Figure 4 It is a side sectional view of a fixed bed desulfurization reactor in Example 1. DETAILED DESCRIPTION
[0020] The utility model is further described below in conjunction with the accompanying drawings.
[0021] Embodiment 1
[0022] like Figure 1-2As shown, embodiment 1 discloses a fixed bed desulfurization reactor, comprising: a tower body 1, an air inlet 11 is connected to the lower part of the outer wall of the tower body 1, an air outlet 12 is connected to the upper part of the inner wall of the tower body 1, a first desulfurization device 2 is arranged in the tower body 1, the first desulfurization device 2 comprises a desulfurizer filling pipe 21, the top end of the desulfurizer filling pipe 21 passes through the top end of the tower body 1, and is fixedly connected with a first desulfurizer filling port 211, a feed distributor 22 is fixed by a bracket in the tower body 1 at the bottom end of the desulfurizer filling pipe 21, the cross section of the feed distributor 22 is a cone-shaped setting with an opening downward, a conical cylinder-type grid 23 with an opening upward is arranged in the tower body 1 below the feed distributor 22, the inner wall of the tower body 1 above the air inlet 11 is fixedly connected to the outer periphery of the top end of the conical cylinder-type grid 23, and the bottom end of the conical cylinder-type grid 23 is provided with an exhaust pipe 231 that passes through the bottom end of the tower body 1 and extends out of the bottom end of the tower body 1.
[0023] Further, such as Figure 1-2 As shown, it also includes a second desulfurization device and a circular support beam 3 arranged in sequence from top to bottom in the tower body 1 above the feed uniform distributor 22, the outer periphery of the circular support beam 3 is fixedly connected to the inner wall of the tower body 1, the bottom end of the desulfurizer filling pipe 21 passes through the circular support beam 3 and extends to the top of the feed uniform distributor 22, the second desulfurization device includes two symmetrically arranged second desulfurization components 4, the second desulfurization component 4 includes a first grid plate and a second grid plate 41, the top and left and right ends of the first grid plate and the second grid plate 41 are fixedly connected to the inner wall of the tower body 1, and the first grid plate and the second grid plate 41 are fixedly connected to the inner wall of the tower body 1. The bottom ends are fixedly connected to the top of the circular support beam 3, and a cavity 42 is formed between the first grid plate and the second grid plate 41 of the same component. The top of the cavity 42 is symmetrically and connected with two second desulfurization agent filling ports 43 arranged on the top of the tower body 1, and the bottom end of the inner wall of the cavity 42 is symmetrically and connected with two discharge ports 44 arranged on the outer wall of the tower body 1. A plurality of first air vents 31 are evenly arranged on the circular support beam 3 between the two second grid plates 41, and there are two air outlets 12, which are respectively arranged on the outer wall of the tower body 1 on the side away from each other of the two second desulfurization components 4.
[0024] Further, such as Figure 1-2 As shown, in order to allow the exhaust gas to fully react with the desulfurizer, a plurality of second through holes 32 are evenly arranged on the circular support beam 3 located below the cavity 42 , and the second through holes 32 are connected to the inner wall of the cavity 42 .
[0025] Furthermore, in order to prevent the desulfurizer in the cavity from falling into the tower body below the circular support beam through the second through hole, a support net (not shown) is fixedly provided at the top of the second through hole 32 .
[0026] Furthermore, in order to control the discharge, valves (not shown) are provided at the output end of the drain pipe 231 and the output end of the discharge port 44 .
[0027] Based on the above structure, Figure 1-2 As shown, when in use, the desulfurizer in the conical cylinder grid 23 is sequentially transported to the top of the feed uniform distributor 22 through the first desulfurizer filling port 211 and the desulfurizer filling pipe 21. Due to the conical setting of the feed uniform distributor 22, the desulfurizer will be dispersed along the outer wall of the feed uniform distributor 22, so that the desulfurizer is evenly dispersed in the conical cylinder grid 23, and the desulfurizer in the cavity 42 is directly injected from the second desulfurizer filling port 43;
[0028] When the exhaust gas is injected into the tower body 1 below the conical grille 23 through the air inlet 11, due to the high temperature carried by the exhaust gas itself, the exhaust gas will rise from the bottom end of the inner wall of the tower body 1 to the top end of the inner wall of the tower body 1. During the rising process of the exhaust gas, it passes through the conical grille 23, and the desulfurizer in the conical grille 23 performs preliminary desulfurization on the exhaust gas. Then the exhaust gas continues to rise and gathers at the bottom end of the circular support beam 3. The exhaust gas first air hole 31 at the bottom end of the circular support beam 3 enters the tower body 1 between the two second grille plates 41, and then the exhaust gas enters the cavity 42 through the second grille plate 41. At the same time, the exhaust gas also enters the cavity 42 through the second through hole 32, and the desulfurizer in the cavity 42 performs secondary desulfurization on the exhaust gas. Then the desulfurized exhaust gas enters the tower body 1 at the end of the first grille plate away from the second grille plate 41, and is discharged from the air outlet 12;
[0029] When the desulfurizer in the conical grid 23 and the cavity 42 needs to be discharged, the output ends of the drain pipe 231 and the discharge port 44 are respectively opened and valves are provided, and the desulfurizer is discharged through the output ends of the drain pipe 231 and the discharge port 44.
[0030] Embodiment 2
[0031] like Figure 3-4 As shown, the technical feature that distinguishes Example 2 from Example 1 is that there is one air outlet 12, which is arranged between two second grid plates 41, and a partition 5 is arranged in the middle between the two second grid plates 41. The outer walls of the partition 5 are respectively sealed with the outer walls on the opposite sides of the two second grid plates 41 and the inner wall of the tower body 1, and the desulfurizer filling pipe 21 passes through the partition 5.
[0032] Based on the above structure, Figure 1-2As shown, when in use, due to the setting of the partition 5 and the setting that there is only one air outlet 12 and it is set between the two second grid plates 41, the exhaust gas between the two second grid plates 41, after being desulfurized by the desulfurizer in the cavity 42, enters the tower body 1 at the end of the first grid plate away from the second grid plate 41. When the exhaust gas in the tower body 1 at the end of the first grid plate away from the second grid plate 41 rises to the top of the inner wall of the tower body 1, it flows back into the tower body 1 between the two 41 located above the partition 5, thereby undergoing three desulfurizations, and then is discharged from the air outlet 12.
[0033] Further, such as Figure 1 and 3 As shown, in order to facilitate personnel to carry out maintenance inside the tower body, a first entrance 6 is provided on the outer wall of the tower body 1 between the circular support beam 3 and the partition plate 5 .
[0034] Further, such as Figure 1 and 3 As shown, in order to facilitate personnel to carry out maintenance inside the tower body, a second inlet 7 is provided on the outer wall of the tower body 1 between the partition 5 and the air outlet 12 .
[0035] Further, such as Figure 1 , 3 As shown in Figure 4, in order to increase the sealing performance of the top of the inner wall of the tower body, a first sealing plate 8 is provided at the top of the inner wall of the tower body 1 between the two second grid plates 41, and the outer walls of the first sealing plate 8 are respectively sealed with the outer walls of the opposite sides of the two second grid plates 41 and the inner wall of the tower body 1, and two second sealing plates 81 are respectively provided at the top of the inner wall of the tower body 1 away from each other by the two first grid plates, and the outer walls of the second sealing plates 81 are respectively sealed with the outer walls of the first grid plates and the inner wall of the tower body 1.
[0036] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.
Claims
1. A fixed bed desulfurization reactor, comprising a tower body (1), wherein the lower portion of the outer wall of the tower body (1) is connected to an air inlet (11), and the upper portion of the inner wall of the tower body (1) is connected to an air outlet (12), characterized in that: A first desulfurization device (2) is arranged in the tower body (1), and the first desulfurization device (2) comprises a desulfurization agent filling pipe (21), the top end of the desulfurization agent filling pipe (21) passes through the top end of the tower body (1) and is fixedly connected to a first desulfurization agent filling port (211), a feed distributor (22) is fixed in the tower body (1) at the bottom end of the desulfurization agent filling pipe (21) through a bracket, the cross section of the feed distributor (22) is arranged in a conical shape with an opening downward, a conical cylinder-type grille (23) with an opening upward is arranged in the tower body (1) below the feed distributor (22), the inner wall of the tower body (1) above the air inlet (11) is fixedly connected to the outer periphery of the top end of the conical cylinder-type grille (23), and an exhaust pipe (231) is arranged at the bottom end of the conical cylinder-type grille (23) and passes through the bottom end of the tower body (1) and extends out of the bottom end of the tower body (1).
2. A fixed bed desulfurization reactor according to claim 1, characterized in that: The invention also comprises a second desulfurization device and a circular support beam (3) which are sequentially arranged in sequence from top to bottom in the tower body (1) above the feed uniform distributor (22); the outer periphery of the circular support beam (3) is fixedly connected to the inner wall of the tower body (1); the bottom end of the desulfurization agent filling pipe (21) passes through the circular support beam (3) and extends to above the feed uniform distributor (22); the second desulfurization device comprises two symmetrically arranged second desulfurization assemblies (4); the second desulfurization assemblies (4) comprise a first grid plate and a second grid plate (41); the top and left and right ends of the first grid plate and the second grid plate (41) are connected to the inner wall of the tower body (1); The first grid plate and the second grid plate (41) are fixedly connected to each other, the bottom ends of the first grid plate and the second grid plate (41) are fixedly connected to the top end of the circular support beam (3), a cavity (42) is formed between the first grid plate and the second grid plate (41) of the same component, the top end of the cavity (42) is symmetrically and connectedly provided with two second desulfurizing agent filling ports (43) arranged at the top end of the tower body (1), the bottom end of the inner wall of the cavity (42) is symmetrically and connectedly provided with two discharge ports (44) arranged on the outer wall of the tower body (1), and a plurality of first ventilation holes (31) are evenly arranged on the circular support beam (3) between the two second grid plates (41).
3. A fixed bed desulfurization reactor according to claim 2, characterized in that: A plurality of second through holes (32) are evenly arranged on the circular support beam (3) located below the cavity (42), and the second through holes (32) are connected to the inner wall of the cavity (42).
4. A fixed bed desulfurization reactor according to claim 3, characterized in that: A supporting net is fixedly arranged at the top end of the second through hole (32).
5. A fixed bed desulfurization reactor according to claim 4, characterized in that: There is one gas outlet (12) and it is arranged between two second grid plates (41). A partition plate (5) is arranged in the middle between the two second grid plates (41). The outer wall of the partition plate (5) is respectively sealed with the outer wall of the opposite side of the two second grid plates (41) and the inner wall of the tower body (1). The desulfurizing agent filling pipe (21) passes through the partition plate (5).
6. A fixed bed desulfurization reactor according to any one of claims 2 to 5, characterized in that: A first inlet (6) is provided on the outer wall of the tower body (1) between the circular support beam (3) and the partition plate (5).
7. A fixed bed desulfurization reactor according to claim 6, characterized in that: A second inlet (7) is provided on the outer wall of the tower body (1) between the partition (5) and the air outlet (12).
8. A fixed bed desulfurization reactor according to claim 7, characterized in that: A first sealing plate (8) is provided at the top end of the inner wall of the tower body (1) between the two second grid plates (41), and the outer wall of the first sealing plate (8) is respectively sealed to the outer wall of the two second grid plates (41) on the opposite side and the inner wall of the tower body (1). Two second sealing plates (81) are respectively provided at the top end of the inner wall of the tower body (1) where the two first grid plates are away from each other, and the outer wall of the second sealing plate (81) is respectively sealed to the outer wall of the first grid plate and the inner wall of the tower body (1).