Automatic bed material supplementing device for fluidized bed

Abstract

The utility model belongs to the field of energy and environmental engineering, and particularly relates to an automatic bed material supplementing device of a fluidized bed, which comprises a flue gas and air assembly, an air inlet pipe, a semi-dry absorption tower, a connecting pipe I, a bag-type dust collector, an exhaust pipe, a slag discharge pipe and the like, the first connecting pipe is installed on the upper portion of the semi-dry type absorption tower, the bag-type dust collector is arranged on the left side of the semi-dry type absorption tower, one end of the first connecting pipe is connected with one side of the bag-type dust collector, the exhaust pipe is installed on the other side of the bag-type dust collector, and the multiple deslagging pipes distributed in two rows and three columns are installed at the bottom of the bag-type dust collector. Through cooperation of a level gage, a control module and an alarm in the alarm assembly, real-time monitoring and abnormal prompting of the material level of the stock bin are achieved, an alarm can be given out in time when the stock bin lacks materials, an operator is reminded to supplement materials, the situation that the desulfurization efficiency is affected due to insufficient material level is avoided, and the automation level and operation stability of the system are improved.

Description

Technical Field

[0001] This utility model belongs to the field of energy and environmental engineering, and in particular relates to an automatic fluidized bed material replenishment device. Background Technology

[0002] With the optimization of energy structure, the improvement of environmental protection requirements, and the continuous development of industrial automation, fluidized bed technology, as a highly efficient, energy-saving, and environmentally friendly thermal and chemical reaction technology, has been widely used in many fields such as energy, chemical industry, metallurgy, and environmental engineering.

[0003] However, in the actual operation of fluidized beds, when the bed material in the silo gradually decreases due to continuous consumption, operators often find it difficult to detect changes in the material level in time, which can easily lead to insufficient bed material, thereby affecting the stability of the fluidization state and causing a decrease in desulfurization efficiency.

[0004] Therefore, there is a particular need for an automatic fluidized bed material replenishment device to solve the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of existing fluidized beds, such as decreased desulfurization efficiency and unstable operation due to material shortage, this utility model provides an automatic fluidized bed material replenishment device.

[0006] This utility model is achieved through the following technical means: an automatic fluidized bed material replenishment device, comprising a flue gas assembly, an inlet pipe, a semi-dry absorption tower, a connecting pipe, a bag filter, an exhaust pipe, a slag discharge pipe, a solenoid valve, a circulation assembly, an atomizing humidification assembly, a silo, a low-pressure continuous pump, a connecting pipe, a connecting tube, an alarm assembly, and a solenoid valve. An inlet pipe is installed at the lower part of the semi-dry absorption tower, the flue gas assembly is installed at one end of the inlet pipe, the connecting pipe is installed at the upper part of the semi-dry absorption tower, the bag filter is positioned to the left of the semi-dry absorption tower, and one end of the connecting pipe is connected to one side of the bag filter. The pipe is installed on the other side of the bag filter. At the bottom of the bag filter, there are multiple slag discharge pipes arranged in two rows and three columns. Each slag discharge pipe is equipped with a solenoid valve. The circulation component is located between the multiple slag discharge pipes and the semi-dry absorption tower. The atomizing and humidifying component is located on the semi-dry absorption tower. The silo is located in front of the semi-dry absorption tower. The low-pressure continuous pump is installed at the discharge end of the silo. The connecting pipe is installed on one side of the low-pressure continuous pump. One end of the connecting pipe is connected to the lower part of the semi-dry absorption tower. The connecting pipe is installed on the upper side of the silo, and a solenoid valve is installed on it. The alarm component is located on the silo.

[0007] As a preferred technical solution of this utility model, the circulation component includes a conveyor, a circulation tank, a second connecting pipe, a second solenoid valve, a circulation pipe, and a first low-pressure continuous pump. The conveyor is installed between one end of multiple slag discharge pipes. The circulation tank is placed below the bag filter. The discharge end of the conveyor is connected to the upper part of the circulation tank. The second connecting pipe is installed at the lower part of the circulation tank and is equipped with the second solenoid valve. The first low-pressure continuous pump is installed at one end of the second connecting pipe. The circulation pipe is installed on one side of the first low-pressure continuous pump and one end of the circulation pipe is connected to the lower part of the semi-dry absorption tower.

[0008] As a preferred technical solution of this utility model, the atomizing humidification component includes an atomizing humidifier, a connecting pipe three, and an atomizing nozzle. The atomizing humidifier is placed behind the semi-dry absorption tower, the connecting pipe three is installed on the atomizing humidifier, and two atomizing nozzles are installed on the upper part of the semi-dry absorption tower. The connecting pipe three is connected to both atomizing nozzles at the same time.

[0009] As a preferred technical solution of this utility model, the alarm component includes a level gauge, a control module and an alarm. The level gauge is installed on the upper side of the silo, and its detection end extends into the silo. The control module is installed on the upper other side of the silo, and two symmetrically distributed alarms are installed on the control module. The alarms are electrically connected to the control module.

[0010] As a preferred technical solution of this utility model, it also includes a support ring, a baffle, a warning plate and a torsion spring. The support ring is fixedly connected to the air intake pipe, the baffle is rotatably disposed inside the air intake pipe, and its upper part passes through the air intake pipe and rotates with the support ring. The warning plate is installed on the upper part of the baffle, and the torsion spring is sleeved on the upper part of the baffle, with its two ends fixedly connected to the baffle and the support ring respectively.

[0011] As a preferred technical solution of this utility model, the baffle has rounded corners on both sides.

[0012] Beneficial effects: 1. By combining the level gauge, control module and alarm in the alarm component, the system can monitor the material level in the silo in real time and provide abnormal prompts. When the silo is low on material, an alarm can be issued in time to remind the operator to replenish the material, so as to avoid the desulfurization efficiency being affected by insufficient material level and improve the automation level and operation stability of the system.

[0013] 2. The flue gas flow indication structure, composed of a baffle, an indicator plate, and a torsion spring, causes the baffle to rotate when the flue gas enters the inlet pipe, which in turn drives the indicator plate to turn, visually displaying the flue gas flow status. This makes it easier for operators to judge whether the device is operating normally, improving the visibility and safety of device operation. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the components of this utility model, including the flue gas assembly, the air inlet pipe, and the semi-dry absorption tower.

[0016] Figure 3 This is a three-dimensional structural diagram of the components of this utility model, including the connecting pipe, the bag filter, and the exhaust pipe.

[0017] Figure 4 This is a three-dimensional structural diagram of the atomizing humidifier, connecting pipe 3, and atomizing nozzle components of this utility model.

[0018] Figure 5 This is a three-dimensional structural diagram of the components of this utility model, including the hopper, the low-pressure continuous pump II, and the connecting pipe IV.

[0019] Figure 6 This is a three-dimensional structural diagram of the level gauge component of this utility model.

[0020] Figure 7 This is a partial cross-sectional view of the air intake pipe component of this utility model.

[0021] In the diagram: 1. Flue gas assembly, 2. Inlet pipe, 3. Semi-dry absorption tower, 4. Connecting pipe one, 5. Bag filter, 6. Exhaust pipe, 7. Slag discharge pipe, 701. Solenoid valve one, 8. Conveyor, 9. Circulation tank, 10. Connecting pipe two, 101. Solenoid valve two, 11. Circulation pipe, 1101. Low-pressure continuous pump one, 12. Atomizing humidifier, 13. Connecting pipe three, 14. Atomizing nozzle, 15. Hopper, 1501. Low-pressure continuous pump two, 1502. Connecting pipe four, 1503. Connecting pipe, 16. Level gauge, 17. Control module, 18. Alarm, 19. Solenoid valve three, 20. Support ring, 21. Baffle, 22. Indicator board, 23. Torsion spring. Detailed Implementation

[0022] Example: An automatic fluidized bed material replenishment device, such as... Figures 1-7As shown, the system includes a flue gas assembly 1, an inlet pipe 2, a semi-dry absorption tower 3, a connecting pipe 4, a bag filter 5, an exhaust pipe 6, a slag discharge pipe 7, a solenoid valve 701, a circulation assembly, an atomizing humidification assembly, a silo 15, a low-pressure continuous pump 1501, a connecting pipe 1502, a connecting pipe 1503, an alarm assembly, and a solenoid valve 19. The inlet pipe 2 is bolted to the lower part of the semi-dry absorption tower 3. The flue gas assembly 1 is bolted to the right end of the inlet pipe 2. The connecting pipe 4 is bolted to the upper part of the semi-dry absorption tower 3. The bag filter 5 is located to the left of the semi-dry absorption tower 3. The lower end of the connecting pipe 4 is connected to the right side of the bag filter 5. The exhaust pipe 6 is bolted to the left side of the bag filter 5. The bottom of the bag filter 5 is bolted with six slag discharge pipes 7 arranged in two rows and three columns. Each slag discharge pipe 7 is equipped with a solenoid valve 701. The circulation component is located between the six slag discharge pipes 7 and the semi-dry absorption tower 3. The atomizing humidification component is located on the semi-dry absorption tower 3. The hopper 15 is located in front of the semi-dry absorption tower 3. The low-pressure continuous pump 1501 is bolted to the discharge end of the lower part of the hopper 15. The connecting pipe 1502 is bolted to the right side of the low-pressure continuous pump 1501. The upper end of the connecting pipe 1502 is connected to the lower part of the semi-dry absorption tower 3. The connecting pipe 1503 is bolted to the upper left side of the hopper 15. A solenoid valve 19 is installed on it. The alarm component is located on the hopper 15.

[0023] like Figures 1-3 As shown, the circulation assembly includes a conveyor 8, a circulation tank 9, a connecting pipe 2 10, a solenoid valve 2 101, a circulation pipe 11, and a low-pressure continuous pump 1101. The conveyor 8 is bolted between the lower ends of the six slag discharge pipes 7. The circulation tank 9 is located below the bag filter 5. The discharge end of the conveyor 8 is connected to the upper part of the circulation tank 9. The connecting pipe 2 10 is bolted to the lower part of the circulation tank 9, and a solenoid valve 2 101 is installed on it. The low-pressure continuous pump 1101 is bolted to the lower end of the connecting pipe 2 10. The circulation pipe 11 is bolted to the right side of the low-pressure continuous pump 1101, and the upper end of the circulation pipe 11 is connected to the lower part of the semi-dry absorption tower 3.

[0024] like Figure 1 , Figure 2 and Figure 4 As shown, the atomizing humidification assembly includes an atomizing humidifier 12, a connecting pipe 13, and an atomizing nozzle 14. The atomizing humidifier 12 is located behind the semi-dry absorption tower 3. The connecting pipe 13 is bolted to the atomizing humidifier 12. Two atomizing nozzles 14 are bolted to the upper part of the semi-dry absorption tower 3, and the connecting pipe 13 connects to both atomizing nozzles 14.

[0025] like Figure 5 and Figure 6As shown, the alarm assembly includes a level gauge 16, a control module 17, and an alarm 18. The level gauge 16 is bolted to the upper rear side of the hopper 15, and its detection end extends into the hopper 15. The control module 17 is bolted to the upper front side of the hopper 15. Two symmetrically distributed alarms 18 are bolted to the control module 17, and the alarms 18 are electrically connected to the control module 17.

[0026] like Figure 7 As shown, it also includes a support ring 20, a baffle 21, a warning plate 22, and a torsion spring 23. The support ring 20 is fixedly connected to the air intake pipe 2. The baffle 21 is rotatably disposed inside the air intake pipe 2, with its upper part passing through the air intake pipe 2 and rotating in cooperation with the support ring 20. The left and right edges of the baffle 21 are provided with rounded corner structures, which can improve the guiding of the flue gas flow, so that the flue gas can more smoothly impact the surface of the baffle 21 when entering the air intake pipe 2, thereby enhancing the pushing effect of the flue gas on the baffle 21. The warning plate 22 is bolted to the upper part of the baffle 21. The torsion spring 23 is sleeved on the upper part of the baffle 21, and its upper and lower ends are fixedly connected to the baffle 21 and the support ring 20 respectively, providing the baffle 21 with a restoring elastic force.

[0027] When the device is in operation, the flue gas assembly 1 sends sulfur-containing flue gas into the inlet pipe 2, and the flue gas enters the semi-dry absorption tower 3. Inside the semi-dry absorption tower 3, the atomizing nozzle 14 sprays the humidifier processed by the atomizing humidifier 12 into the flue gas, so that the acidic gas and alkaline substances in the flue gas can come into full contact and undergo a neutralization reaction, thus achieving preliminary desulfurization. At the same time, the bed material in the hopper 15 is transported to the interior of the semi-dry absorption tower 3 through the low-pressure continuous pump 1501 and the connecting pipe 1502, where it mixes with the flue gas and further participates in the desulfurization reaction, thereby improving the desulfurization efficiency.

[0028] After desulfurization, the flue gas carrying some fine ash enters the bag filter 5. Under the action of the filter bags, the dust is efficiently intercepted. The purified gas is discharged into the atmosphere through the exhaust pipe 6. The bottom of the bag filter 5 is equipped with six slag discharge pipes 7. Each slag discharge pipe 7 is equipped with a solenoid valve 701 to control the slag discharge rhythm and ensure the stable operation of the bag filter 5. The discharged ash is transported to the circulation tank 9 by the conveyor 8 for temporary storage, and then enters the low-pressure continuous pump 1101 through the connecting pipe 10 and the solenoid valve 101. Finally, it is transported to the interior of the semi-dry absorption tower 3 to realize the recycling of desulfurization ash, improve the bed material utilization rate, and reduce operating costs.

[0029] During the desulfurization process, the level gauge 16 monitors the material level in the silo 15 in real time. When the material level is lower than the set value, the level gauge 16 sends a signal to the control module 17. The control module 17 then triggers the alarm 18 to issue an audible and visual alarm, reminding the operator to replenish the material in time to avoid a decrease in desulfurization efficiency due to insufficient bed material.

[0030] In addition, a baffle 21 is installed at the air inlet pipe 2. When the flue gas flows into the air inlet pipe 2, the flue gas impacts the baffle 21 and causes it to rotate, which drives the indicator plate 22 to change from horizontal to vertical, intuitively displaying the flue gas flow status and making it easy for operators to judge whether the device is in operation. After the flue gas stops flowing, the torsion spring 23 provides a reset force, so that the baffle 21 automatically resets to the initial position, realizing the automatic recovery of the status indication.

Claims

1. An automatic fluidized bed material replenishment device, characterized in that, The system includes a flue gas assembly (1), an inlet pipe (2), a semi-dry absorption tower (3), a connecting pipe (4), a bag filter (5), an exhaust pipe (6), a slag discharge pipe (7), a solenoid valve (701), a circulation assembly, an atomizing humidification assembly, a silo (15), a low-pressure continuous pump (1501), a connecting pipe (1502), a connecting pipe (1503), an alarm assembly, and a solenoid valve (19). The inlet pipe (2) is installed at the bottom of the semi-dry absorption tower (3). The flue gas assembly (1) is installed at one end of the inlet pipe (2). The connecting pipe (4) is installed at the top of the semi-dry absorption tower (3). The bag filter (5) is located to the left of the semi-dry absorption tower (3). One end of the connecting pipe (4) is connected to one side of the bag filter (5). The exhaust pipe (6) is installed on the side of the bag filter (5). On the other side, the bottom of the bag filter (5) is equipped with multiple slag discharge pipes (7) arranged in two rows and three columns. Each slag discharge pipe (7) is equipped with a solenoid valve (701). The circulation component is set between the multiple slag discharge pipes (7) and the semi-dry absorption tower (3). The atomizing humidification component is set on the semi-dry absorption tower (3). The silo (15) is placed in front of the semi-dry absorption tower (3). The low-pressure continuous pump (1501) is installed on the discharge end of the lower part of the silo (15). The connecting pipe (1502) is installed on one side of the low-pressure continuous pump (1501). One end of the connecting pipe (1502) is connected to the lower part of the semi-dry absorption tower (3). The connecting pipe (1503) is installed on the upper side of the silo (15), and a solenoid valve (19) is set on it. The alarm component is set on the silo (15).

2. The fluidized bed material automatic replenishment device according to claim 1, characterized in that, The circulation assembly includes a conveyor (8), a circulation tank (9), a second connecting pipe (10), a second solenoid valve (101), a circulation pipe (11), and a first low-pressure continuous pump (1101). The conveyor (8) is installed between one end of multiple slag discharge pipes (7). The circulation tank (9) is located below the bag filter (5). The discharge end of the conveyor (8) is connected to the upper part of the circulation tank (9). The second connecting pipe (10) is installed at the lower part of the circulation tank (9), and the second solenoid valve (101) is installed on it. The first low-pressure continuous pump (1101) is installed at one end of the second connecting pipe (10). The circulation pipe (11) is installed on one side of the first low-pressure continuous pump (1101), and one end of the circulation pipe (11) is connected to the lower part of the semi-dry absorption tower (3).

3. The fluidized bed material automatic replenishment device according to claim 2, characterized in that, The atomizing humidification assembly includes an atomizing humidifier (12), a connecting pipe (3) (13) and an atomizing nozzle (14). The atomizing humidifier (12) is placed behind the semi-dry absorption tower (3). The connecting pipe (3) (13) is installed on the atomizing humidifier (12). Two atomizing nozzles (14) are installed on the upper part of the semi-dry absorption tower (3). The connecting pipe (3) (13) is connected to both atomizing nozzles (14).

4. The fluidized bed material automatic replenishment device according to claim 3, characterized in that, The alarm assembly includes a level gauge (16), a control module (17), and an alarm (18). The level gauge (16) is installed on the upper side of the silo (15), with its detection end extending into the silo (15). The control module (17) is installed on the upper other side of the silo (15), and two symmetrically distributed alarms (18) are installed on the control module (17). The alarms (18) are electrically connected to the control module (17).

5. The fluidized bed material automatic replenishment device according to claim 4, characterized in that, It also includes a support ring (20), a baffle (21), a warning plate (22) and a torsion spring (23). The support ring (20) is fixed to the air intake pipe (2). The baffle (21) is rotatably disposed inside the air intake pipe (2). Its upper part passes through the air intake pipe (2) and rotates with the support ring (20). The warning plate (22) is installed on the upper part of the baffle (21). The torsion spring (23) is sleeved on the upper part of the baffle (21). Its two ends are fixedly connected to the baffle (21) and the support ring (20) respectively.

6. The fluidized bed material automatic replenishment device according to claim 5, characterized in that, The baffle (21) has rounded corners on both sides.

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