Novel fixed bed adsorption device for dry desulfurization

Abstract

The utility model relates to the technical field of flue gas treatment of industrial boilers and kilns, in particular to a novel fixed bed adsorption device for dry desulfurization, which comprises a fixed bed body, a rectangular slotted hole is formed in the top end of the fixed bed body, and a first desulfurization layer material grating plate is fixedly connected to the inner wall of the rectangular slotted hole. And the other side of the inner wall of the rectangular groove hole is fixedly connected with a second desulfurization layer material grating plate. Due to the arrangement of the material distribution layer, the desulfurization layer, the fixed bed body, the desulfurization lower material cone, the first desulfurization layer material grating plate, the second desulfurization layer material grating plate, the air inlet and the air outlet, during use, desulfurization adsorbent materials reach the desulfurization layer, all desulfurization agent materials are stacked in the material layer, and the height of the material level is 0.1-0.2 m away from a feeding port. A first desulfurization layer material grating plate and a second desulfurization layer material grating plate are arranged on the two sides of the desulfurization layer and are formed by splicing a plurality of steel plates, and a supporting device is arranged at the bottom of the desulfurization layer, so that bed collapse caused by excessive material accumulation and overlarge weight is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial boiler and kiln flue gas treatment, in particular to a novel fixed bed adsorption device for dry desulfurization. Background Art

[0002] Dry desulfurization technology refers to the use of powdered or granular absorbents, adsorbents or catalysts to remove sulfide-containing gases from flue gas. Its advantages are simple process, no sewage and waste acid treatment problems, low energy consumption, especially the high temperature of the flue gas after purification, which is conducive to the diffusion of chimney exhaust and will not produce white smoke. The purified flue gas does not need secondary heating and is less corrosive.

[0003] Dry desulfurization has a high degree of purification and can remove sulfur dioxide from flue gas. However, dry desulfurizers cannot be regenerated or are very difficult to regenerate, and the sulfur and nitric acid capacity is limited. In order to extend the operation cycle, a multi-tower series and parallel process is required. The desulfurization equipment is huge, with large investment and large floor space. When it fails, it is not convenient for operators to inspect and maintain it. The operation technology requirements are high and the labor intensity is high, and the safety of the use of the desulfurization device cannot be guaranteed in time.

[0004] At present, the fixed bed adsorption devices involved in the market have a single structure, limited loading capacity, and a large fixed bed area. It is difficult to implement some projects that are restricted by the size of the site. Therefore, in the process of changing the structure of the single fixed bed unit, a new type of fixed bed device for dry desulfurization was invented, which effectively solved the problem of large fixed bed desulfurization area. The fixed bed process can adapt to more sites and working conditions, greatly improving the application value of the fixed bed desulfurization process. Utility Model Content

[0005] The purpose of the utility model is to provide a novel fixed bed adsorption device for dry desulfurization to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A novel fixed bed adsorption device for dry desulfurization, comprising:

[0008] A fixed bed body, wherein a rectangular slot is provided on the top of the fixed bed body, a first desulfurization layer material grid plate is fixedly connected to the inner wall of the rectangular slot, a second desulfurization layer material grid plate is fixedly connected to the other side of the inner wall of the rectangular slot, a desulfurization layer is fixedly connected to the inner wall of the second desulfurization layer material grid plate, a desulfurization layer, a desulfurization lower material cone is fixedly connected to the bottom end of the desulfurization layer, an air inlet is fixedly connected to one side of the front side of the fixed bed body, an air outlet is fixedly connected to the other side of the fixed bed body, and a cloth layer is fixedly connected to the top of the desulfurization layer.

[0009] Preferably, a first feed inlet is fixedly connected to one side of the top of the desulfurization layer, and a second feed inlet is fixedly connected to the other side of the top of the desulfurization layer.

[0010] Preferably, a square slot is provided on the inner wall of the fixed bed, and a partition is fixedly connected to the inner wall of the square slot.

[0011] Preferably, a circular slot is provided at the bottom end of the desulfurization lower material cone, and a manual gate valve is fixedly connected to the inner wall of the circular slot.

[0012] Preferably, a slot hole is provided at the bottom end of the manual plug valve, and a star-shaped discharge valve is fixedly connected to the inner wall of the slot hole.

[0013] Preferably, a long slot hole is opened at the top of the fixed bed body, and the inner wall of the long slot hole is fixedly connected to the fabric layer.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. This novel fixed bed adsorption device for dry desulfurization is provided with a cloth layer, a desulfurization layer, a fixed bed body, a desulfurization lower material cone, a first desulfurization layer material grid plate, a second desulfurization layer material grid plate, an air inlet and an air outlet. When in use, the desulfurization adsorbent material reaches the desulfurization layer and all the desulfurizer materials are accumulated in the material layer, and the material level height is 0.1-0.2 meters away from the feed inlet. On both sides of the desulfurization layer are the first desulfurization layer material grid plate and the second desulfurization layer material grid plate, which are made of multiple steel plates. A supporting device is provided at the bottom to prevent the bed from collapsing due to excessive material accumulation and excessive weight. The waste inside the desulfurization layer is quickly discharged through the lower material cone of the desulfurization layer. The lower layer of flue gas enters from the air inlet, and the internal flue gas passes through the desulfurization layer and is discharged from the air outlet. The effect of the fixed bed body can be comparable to the workload of multiple separate beds. In the case of a small site area, the number of single fixed bed bodies installed cannot meet the requirements, and the loading amount of the desulfurization adsorbent will not meet the requirements; on the contrary, the new fixed bed body can achieve more gas passing area with a smaller number of installations, and can also load more adsorbents, so that the fixed bed process can adapt to more sites and working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a side cross-sectional schematic diagram of the utility model;

[0017] Figure 2 It is a top view schematic diagram of the utility model;

[0018] Figure 3 It is an enlarged schematic diagram of the manual plug valve and the star-shaped discharge valve of the utility model;

[0019] Figure 4It is an enlarged schematic diagram of the desulfurization layer, the first desulfurization layer material grid plate and the second desulfurization layer material grid plate of the utility model.

[0020] In the figure: 1. fixed bed body; 2. first desulfurization layer material grid plate; 3. second desulfurization layer material grid plate; 4. desulfurization layer; 5. desulfurization lower material cone; 6. air inlet; 7. air outlet; 8. material distribution layer; 9. first feed inlet; 10. second feed inlet; 11. partition; 12. manual plug valve; 13. star-shaped discharge valve. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-Figure 4 As shown, a technical solution provided by the utility model:

[0023] A novel fixed bed adsorption device for dry desulfurization, comprising:

[0024] A fixed bed body 1 is provided with a rectangular slot at the top, a first desulfurization layer material grid plate 2 is fixedly connected to the inner wall of the rectangular slot, a second desulfurization layer material grid plate 3 is fixedly connected to the other side of the inner wall of the rectangular slot, a desulfurization layer 4 is fixedly connected to the inner wall of the second desulfurization layer material grid plate 3, a desulfurization layer 4 is fixedly connected to the bottom end of the desulfurization layer 4, an air inlet 6 is fixedly connected to the front side of the fixed bed body 1, an air outlet 7 is fixedly connected to the other side of the fixed bed body 1, a cloth layer 8 is fixedly connected to the top of the desulfurization layer 4, through the arrangement of the cloth layer 8, the desulfurization layer 4, the fixed bed body 1, the desulfurization lower material cone 5, the first desulfurization layer material grid plate 2, the second desulfurization layer material grid plate 3, the air inlet 6 and the air outlet 7, when in use, the desulfurization adsorbent material reaches the desulfurization layer 4, the desulfurizer material is all accumulated in the material layer, and the material level height is 0.1-0.2 meters away from the feed inlet. On both sides of the desulfurization layer 4 are the first desulfurization layer material grid plate 2 and the second desulfurization layer material grid plate 3, which are spliced ​​by multiple steel plates. A supporting device is provided at the bottom to prevent the bed from collapsing due to excessive material accumulation and excessive weight. The waste inside the desulfurization layer 4 is quickly discharged through the desulfurization lower material cone 5. The lower layer of flue gas enters from the air inlet 6, and the internal flue gas passes through the desulfurization layer 4 and is discharged from the air outlet 7. The effect of the fixed bed body 1 can be comparable to the workload of multiple separate beds. In the case of a small site area, the number of single fixed bed bodies 1 installed cannot meet the requirements, and the loading amount of the desulfurization adsorbent will not meet the requirements; on the contrary, the new fixed bed body 1 can achieve more gas passing area with a smaller number of installations, and can also load more adsorbents, so that the fixed bed process can adapt to more sites and working conditions;

[0025] In this embodiment, preferably, a first feed port 9 is fixedly connected to one side of the top of the desulfurization layer 4, and a second feed port 10 is fixedly connected to the other side of the top of the desulfurization layer 4. By setting the first feed port 9 and the second feed port 10, when in use, the desulfurization adsorbent can enter the desulfurization layer 4 to react through the installation of the first feed port 9 and the second feed port 10, thereby achieving the function of transmitting the desulfurization adsorbent;

[0026] In this embodiment, preferably, a square slot is opened on the inner wall of the fixed bed body 1, and a partition 11 is fixedly connected to the inner wall of the square slot. When the partition 11 is set, the partition 11 is installed, and when the smoke enters the interior, the partition 11 contacts the partition 11 so that the smoke is gathered together and discharged, thereby achieving the effect of gathering the smoke;

[0027] In this embodiment, preferably, a circular slot is provided at the bottom end of the desulfurization lower material cone 5, and a manual gate valve 12 is fixedly connected to the inner wall of the circular slot. Through the setting of the manual gate valve 12, when in use, the saturated desulfurization adsorbent material is discharged through the installation of the manual gate valve 12 for unloading, thereby achieving the effect of unloading and discharging;

[0028] In this embodiment, preferably, a slot is provided at the bottom end of the manual plug valve 12, and a star-shaped discharge valve 13 is fixedly connected to the inner wall of the slot. By setting the star-shaped discharge valve 13, when in use, the star-shaped discharge valve 13 can be installed as a second-layer lock to perform double protection and discharge, and at the same time, double-layer air locking can be performed to achieve double-layer protection, thereby achieving a protective effect;

[0029] In the present embodiment, preferably, an elongated slot is opened at the top of the fixed bed body 1, and the inner wall of the elongated slot is fixedly connected to the cloth layer 8. Through the setting of the cloth layer 8, when in use, through the installation of the cloth layer 8, the cloth layer 8 is used to prevent smoke from entering the interior and diffusing upward, thereby achieving the effect of preventing smoke from diffusing upward.

[0030] When the novel fixed bed adsorption device for dry desulfurization of this embodiment is in use, the desulfurization adsorbent material reaches the desulfurization layer 4 and all the desulfurization material is accumulated in the material layer, and the material level is 0.1-0.2 meters away from the feed inlet. On both sides of the desulfurization layer 4 are the first desulfurization layer material grid plate 2 and the second desulfurization layer material grid plate 3, which are spliced ​​by multiple steel plates. A supporting device is provided at the bottom to prevent the bed from collapsing due to excessive material accumulation and excessive weight. The waste inside the desulfurization layer 4 is quickly discharged through the desulfurization lower material cone 5, and the lower layer of flue gas enters from the air inlet 6, and the internal flue gas passes through the desulfurization layer 4 and is discharged from the air outlet 7. The effect of the fixed bed body 1 can be comparable to the workload of multiple separate beds. In the case of a small site area, the number of single fixed bed bodies 1 installed cannot meet the requirements, and the loading amount of the desulfurization adsorbent will not meet the requirements; on the contrary, the new fixed bed body 1 can achieve more gas passing area with a smaller number of installations, and can also load more adsorbents, so that the fixed bed process can adapt to more sites and working conditions. By installing the first feed port 9 and the second feed port 10, the desulfurization adsorbent can enter the desulfurization layer 4 to react, thereby achieving the effect of transmitting the desulfurization adsorbent. By installing the partition 11, the partition 11 is used to contact the partition 11 when the flue gas enters the interior so that the flue gas is gathered together and discharged, thereby achieving the effect of gathering the flue gas. By installing the manual plug valve 12, the saturated desulfurization adsorbent material is discharged for unloading, thereby achieving the effect of unloading and discharging. By installing the star-shaped unloading valve 13, the star-shaped unloading valve 13 can be used as the second layer lock for double protection and unloading, and at the same time can perform double-layer air locking to achieve double-layer protection, thereby achieving the effect of protection. By installing the cloth layer 8, the cloth layer 8 is used to prevent the flue gas from entering the interior and diffusing upward, thereby achieving the effect of preventing the flue gas from diffusing upward.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A novel fixed bed adsorption device for dry desulfurization, characterized in that: include A fixed bed body (1), wherein a rectangular slot is provided at the top of the fixed bed body (1), a first desulfurization layer material grid plate (2) is fixedly connected to the inner wall of the rectangular slot, a second desulfurization layer material grid plate (3) is fixedly connected to the other side of the inner wall of the rectangular slot, a desulfurization layer (4) is fixedly connected to the inner wall of the second desulfurization layer material grid plate (3), a desulfurization layer (4) is fixedly connected to the bottom end of the desulfurization layer (4) is fixedly connected to a desulfurization lower material cone (5), an air inlet (6) is fixedly connected to one side of the front of the fixed bed body (1), an air outlet (7) is fixedly connected to the other side of the fixed bed body (1), and a cloth layer (8) is fixedly connected to the top of the desulfurization layer (4).

2. A novel fixed bed adsorption device for dry desulfurization according to claim 1, characterized in that: A first feed inlet (9) is fixedly connected to one side of the top of the desulfurization layer (4), and a second feed inlet (10) is fixedly connected to the other side of the top of the desulfurization layer (4).

3. The novel fixed bed adsorption device for dry desulfurization according to claim 1 is characterized in that: The inner wall of the fixed bed body (1) is provided with a square slot, and a partition (11) is fixedly connected to the inner wall of the square slot.

4. The novel fixed bed adsorption device for dry desulfurization according to claim 1 is characterized in that: A circular slot hole is provided at the bottom end of the desulfurization lower material cone (5), and a manual gate valve (12) is fixedly connected to the inner wall of the circular slot hole.

5. A novel fixed bed adsorption device for dry desulfurization according to claim 4, characterized in that: A slot hole is provided at the bottom end of the manual plug valve (12), and a star-shaped discharge valve (13) is fixedly connected to the inner wall of the slot hole.

6. The novel fixed bed adsorption device for dry desulfurization according to claim 1 is characterized in that: The top of the fixed bed body (1) is provided with an elongated slot hole, and the inner wall of the elongated slot hole is fixedly connected to the fabric layer (8).

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