Fluidized bed with gas-solid separation effect

Abstract

The utility model relates to fluidized bed technical field, concretely is a kind of fluidized bed with gas-solid separation effect, including shunt fluidized bed and several heat exchangers, shunt fluidized bed side is equipped with connecting passage, connecting passage side is equipped with series fluidized bed, connecting passage side is equipped with external circulation fluidized bed, the lateral wall of series fluidized bed is provided with mounting groove, sealing plate is connected and installed in mounting groove, several heat exchangers are respectively installed in the inside and outside of sealing plate, the both sides of sealing plate are respectively provided with fixed plate, the middle part of fixed plate is all provided with through-hole, and all are penetrated and installed bolt, the lateral wall of series fluidized bed is provided with and the thread hole of bolt adaptation, bolt is screw-threaded and installed in thread hole, sealing plate is installed on series fluidized bed.

Description

Technical Field

[0001] This utility model relates to the field of fluidized bed technology, specifically to a fluidized bed with gas-solid separation effect. Background Technology

[0002] A fluidized bed with gas-solid separation capability is suitable for complex chemical processes and environmental applications requiring precise control of reaction conditions and efficient thermal management. Through improvements in gas-solid separation function, multi-stage design, and heat exchange design, this equipment can provide higher operating efficiency and product quality. Gas-solid separation is achieved through a separator, multi-stage design is achieved through split or series fluidized beds, and heat exchange is optimized through an internal heat exchanger, an external heat exchanger, and an external circulating fluidized bed. An existing circulating fluidized bed reactor with combustion-supporting function (Publication No.: CN215863423U) has the following drawbacks and requires further improvement.

[0003] 1. Traditional equipment lacks effective gas-solid separation technology, failing to effectively separate solid particles from gas. This results in particles being discharged with the gas, increasing product loss and environmental pollution. Furthermore, unseparated solid particles can cause blockages and excessive wear on equipment pipelines and critical components, thereby increasing maintenance costs and reducing equipment operating efficiency. Therefore, there is an urgent need for a fluidized bed with gas-solid separation capabilities.

[0004] 2. Traditional equipment can only operate in a single reaction environment and cannot simultaneously handle multi-step processes requiring different temperatures, pressures, or gas flow rates. This single configuration limits its ability to process complex chemical reactions and prevents flexible adjustments to adapt to different production needs, potentially leading to energy and raw material waste, low production efficiency, and difficulty in guaranteeing product quality. Therefore, there is an urgent need for a fluidized bed with a multi-stage design.

[0005] 3. Traditional equipment results in inefficient or uneven heat distribution within the equipment, affecting the efficiency of chemical reactions and product quality, especially in processes requiring precise temperature control. Furthermore, energy waste is a significant problem because heat cannot be effectively recovered and reused, increasing operating costs. Therefore, there is an urgent need for a fluidized bed with a heat exchange design.

[0006] Chinese Utility Model Publication No. CN222240190U discloses a fluidized bed with gas-solid separation effect, relating to the field of reaction engineering technology, specifically a fluidized bed with gas-solid separation effect. It includes a split-flow fluidized bed, a series fluidized bed, an external circulation fluidized bed, connecting channels, a slag discharge port, a riser reactor, a separator, a stripping section, a regenerator, an internal heat exchanger, an external heat exchanger, a distribution plate, and observation holes.

[0007] The device aims to improve the efficiency of chemical reactions and the quality of products. However, the internal heat exchanger is located inside the series fluidized bed. When the heat exchanger is damaged and needs to be repaired during use, it is inconvenient to disassemble, which increases the difficulty of maintenance. Utility Model Content

[0008] (a) Technical problems to be solved

[0009] In view of the shortcomings of the existing technology, this utility model provides a fluidized bed with gas-solid separation effect.

[0010] (II) Technical Solution

[0011] To achieve the above objectives, this utility model provides the following technical solution: a fluidized bed with gas-solid separation effect, comprising a split fluidized bed and several heat exchangers. A connecting channel is installed on one side of the split fluidized bed, a series fluidized bed is installed on one side of the connecting channel, and an external circulation fluidized bed is installed on one side of the connecting channel. The side wall of the series fluidized bed is provided with an installation groove, in which a sealing plate is snapped and installed. Several heat exchangers are respectively installed on the inner and outer sides of the sealing plate. Fixing plates are respectively provided on both sides of the sealing plate. Each fixing plate has a through hole in the middle, through which a bolt is installed. The side wall of the series fluidized bed is provided with a threaded hole that matches the bolt. The bolt thread is installed in the threaded hole, and the sealing plate is installed on the series fluidized bed.

[0012] Furthermore, the sealing plate is provided with grooves on the upper and lower sides, and a plug-in device is installed in each groove. The upper and lower ends of the opening of the series fluidized bed are respectively provided with slots that are compatible with the plug-in device. The plug-in device is inserted into the slot to fix the sealing plate.

[0013] Furthermore, the insertion device includes a spring disposed on one side of the groove, and the other end of the spring is provided with an insertion plate that slides within the groove.

[0014] Furthermore, a through groove is installed through one side of the groove, and a push-pull plate is slidably installed in the through groove, with one end of the push-pull plate set on the side wall of the insert plate.

[0015] Preferably, a gap is provided between the through groove and the heat exchanger.

[0016] Preferably, a distribution plate is installed inside the series fluidized bed, a riser reactor is installed inside the split fluidized bed, a separator is installed inside the split fluidized bed, a stripping section is installed inside the split fluidized bed, a regenerator is installed inside the split fluidized bed, and a slag discharge port is installed on one side of the external circulation fluidized bed.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, this utility model provides a fluidized bed with gas-solid separation effect, which has the following beneficial effects:

[0019] This fluidized bed with gas-solid separation effect can be removed from the series fluidized bed by snapping together the sealing plate and the mounting groove, and by unscrewing the bolts from the threaded holes of the series fluidized bed and sliding the insert plate into the groove of the sealing plate, thus removing the heat exchanger and facilitating maintenance. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0021] Figure 2 This is an enlarged three-dimensional schematic diagram of the series fluidized bed of this utility model;

[0022] Figure 3 This is an enlarged three-dimensional schematic diagram of the sealing plate, heat exchanger, and insert plate of this utility model.

[0023] Figure 4 This utility model Figure 3 A rear-view stereoscopic diagram;

[0024] Figure 5 This is an enlarged structural diagram of the sealing plate and insert plate of this utility model.

[0025] Figure 6 This utility model Figure 1 The diagram shows a partially enlarged structural schematic at point A.

[0026] In the diagram: 1. Diverted fluidized bed; 2. Heat exchanger; 3. Connecting channel; 4. Series fluidized bed; 5. External circulation fluidized bed; 6. Mounting groove; 7. Sealing plate; 8. Fixing plate; 9. Bolt; 10. Groove; 11. Slot; 12. Spring; 13. Insert plate; 14. Push-pull plate; 15. Riser reactor; 16. Stripping section. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] In the prior art, a fluidized bed with gas-solid separation effect includes a split fluidized bed 1 and several heat exchangers 2. A connecting channel 3 is installed on one side of the split fluidized bed 1, a series fluidized bed 4 is installed on one side of the connecting channel 3, and an external circulation fluidized bed 5 is installed on one side of the connecting channel 3. A distribution plate is installed inside the series fluidized bed 4. A riser reactor 15 is installed inside the split fluidized bed 1. A separator is installed inside the split fluidized bed 1. A stripping section 16 is installed inside the split fluidized bed 1. A regenerator is installed inside the split fluidized bed. A slag discharge port is installed on one side of the external circulation fluidized bed 5. By adding the split fluidized bed 1 and the series fluidized bed 4, the temperature, pressure, and airflow velocity of different sections can be independently controlled, improving flexibility. The heat exchangers 2 and the external circulation fluidized bed 5 can improve thermal efficiency and ensure uniform heat distribution, thereby optimizing the efficiency of chemical reactions and improving product quality. This is the prior art and will not be elaborated further here.

[0029] Please see Figure 1-5 This utility model discloses a fluidized bed with gas-solid separation effect. The side wall of the series fluidized bed 4 is provided with an installation groove 6. A sealing plate 7 is snapped into the installation groove 6. The sealing plate 7 is installed in the installation groove 6 to achieve the effect of disassembly and installation. Several heat exchangers 2 are respectively installed on the inner and outer sides of the sealing plate 7. The heat exchangers 2 can be removed from the series fluidized bed 4 for maintenance or replacement by disassembling the sealing plate 7. Fixing plates 8 are provided on both sides of the sealing plate 7. The middle of each fixing plate 8 is provided with a through hole, and a bolt 9 is installed through each hole. The side wall of the series fluidized bed 4 is provided with a threaded hole that matches the bolt 9. The bolt 9 passes through the through hole of the fixing plate 8 and is then threaded into the threaded hole. The sealing plate 7 is installed on the series fluidized bed 4, thereby installing the heat exchangers 2 on the series fluidized bed 4.

[0030] The sealing plate 7 has grooves 10 on its upper and lower sides, and each groove 10 is equipped with a plug-in device. The plug-in device slides up and down in the groove 10 to adjust its position. The upper and lower ends of the opening of the series fluidized bed 4 are respectively provided with slots 11 that are compatible with the plug-in device. The plug-in device is inserted into the slot 11 to fix the sealing plate 7, which facilitates the installation of bolts 9 and improves the stability of the sealing plate 7.

[0031] The insertion device includes a spring 12 disposed on one side of the groove 10, and a plug plate 13 that slides within the groove 10 is disposed at the other end of the spring 12. The spring 12 provides a pushing force to the plug plate 13, causing most of the plug plate 13 to slide out of the groove 10.

[0032] A through groove is installed through one side of the groove 10. A push-pull plate 14 is slidably installed in the through groove. One end of the push-pull plate 14 is set on the side wall of the insert plate 13. When the push-pull plate 14 is slid to one side of the through groove, the insert plate 13 is slid into the groove 10, compressing the spring 12.

[0033] A gap is provided between the through channel and the heat exchanger 2 to facilitate the installation of the heat exchanger 2.

[0034] In summary, when using this fluidized bed with gas-solid separation effect, the push-pull plates 14 in the grooves 10 on both sides of the sealing plate 7 are slid towards the through groove, causing the insert plate 13 to compress the spring 12 and slide completely into the groove 10. The sealing plate 7 is then aligned with the mounting groove 6 and smoothly inserted into the groove. The push-pull plates 14 are released, and the spring 12 returns to its original position, pushing the insert plate 13 out of the groove 10 and inserting it into the slots 11 at the upper and lower ends of the opening of the series fluidized bed 4 to initially fix the sealing plate 7. The bolts 9 are then taken, passed through the through holes of the fixing plates 8 on both sides of the sealing plate 7, aligned with the matching threaded holes on the side wall of the series fluidized bed 4, and tightened clockwise until the sealing plate 7 is firmly attached to the mounting groove 6, thus completing the assembly of the heat exchanger 2 and the series fluidized bed 4. Disassembly is performed in the same way.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fluidized bed with gas-solid separation effect, comprising a split-flow fluidized bed (1) and several heat exchangers (2), wherein a connecting channel (3) is installed on one side of the split-flow fluidized bed (1), a series fluidized bed (4) is installed on one side of the connecting channel (3), and an external circulation fluidized bed (5) is installed on one side of the connecting channel (3), characterized in that: The side wall of the series fluidized bed (4) is provided with an installation groove (6), and a sealing plate (7) is snapped into the installation groove (6). Several heat exchangers (2) are installed on the inner and outer sides of the sealing plate (7). Fixing plates (8) are provided on both sides of the sealing plate (7). The middle of the fixing plate (8) is provided with a through hole, and a bolt (9) is installed through it. The side wall of the series fluidized bed (4) is provided with a threaded hole that matches the bolt (9). The bolt (9) is threaded into the threaded hole, and the sealing plate (7) is installed on the series fluidized bed (4).

2. The fluidized bed having a gas-solid separation effect according to claim 1, characterized by: The sealing plate (7) has grooves (10) on its upper and lower sides respectively, and each groove (10) is equipped with a plug-in device. The upper and lower ends of the opening of the series fluidized bed (4) are respectively provided with slots (11) that are compatible with the plug-in device. The plug-in device is inserted into the slot (11) to fix the sealing plate (7).

3. The fluidized bed having a gas-solid separation effect according to claim 2, characterized by: The insertion device includes a spring (12) disposed on one side of the groove (10), and the other end of the spring (12) is provided with an insert plate (13) that slides in the groove (10).

4. The fluidized bed having a gas-solid separation effect according to claim 3, characterized by: A through groove is installed through one side of the groove (10), and a push-pull plate (14) is slidably installed in the through groove. One end of the push-pull plate (14) is set on the side wall of the insert plate (13).

5. The fluidized bed having a gas-solid separation effect according to claim 4, characterized by: A gap is provided between the through channel and the heat exchanger (2).

6. The fluidized bed having a gas-solid separation effect according to claim 1, wherein: A distribution plate is installed inside the series fluidized bed (4), a riser reactor (15) is installed inside the split fluidized bed (1), a separator is installed inside the split fluidized bed (1), a stripping section (16) is installed inside the split fluidized bed (1), a regenerator is installed inside the split fluidized bed, and a slag discharge port is installed on one side of the external circulation fluidized bed (5).

Images