Hot ammonia water flushing device of primary cooler

Abstract

The utility model belongs to the technical field of primary coolers, and particularly relates to a hot ammonia water flushing device of a primary cooler, which comprises a primary cooler body and a mounting disc, a dismounting, cleaning and replacing mechanism is arranged on the mounting disc and the primary cooler body, and a hot ammonia water flushing mechanism is arranged on the mounting disc. The hot ammonia water flushing mechanism comprises a spraying pipe and a back flushing pipe which are fixedly arranged on the mounting disc, and the bottom end of the back flushing pipe is fixedly communicated with the top of the spraying pipe. The primary cooler is reasonable in structural design, facilitates back flushing of the spraying pipe and the upper and lower nozzles, greatly delays the period of cleaning, replacement and maintenance of the spraying pipe and the upper and lower nozzles, ensures normal use of the spraying pipe and continuous long-time operation of the primary cooler body, improves the working efficiency of the primary cooler body, and reduces the production cost. Meanwhile, stable mounting and quick dismounting of the spraying pipe and the backwashing pipe are facilitated, the spraying pipe and the backwashing pipe can be taken out for cleaning, replacement and maintenance, and the hot ammonia water washing effect is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of primary cooler technology, and in particular to a hot ammonia water flushing device for primary coolers. Background Technology

[0002] During the coking process, the raw coal gas following the gas-liquid separator carries a large amount of coal powder, naphthalene, and tar vapor. The function of the primary cooler is to continuously spray condensate, tar, or emulsion into the upper and lower sections of the primary cooler through spray pipes, cooling the coal gas from about 82°C to about 22°C, removing most of the naphthalene from the coal gas, and reducing the resistance of the primary cooler and subsequent equipment, thus providing favorable conditions for further recovery of chemical products.

[0003] A search revealed a method and system for cleaning a primary cooler, authorized by publication number CN112985163B, belonging to the field of primary cooler cleaning technology. The cleaning method involves purging the upper and lower sections of the primary cooler with steam. After steam purging, ammonia water is used to clean both sections. First, steam purging heats the upper and lower sections, carrying away some impurities and widening the gaps in the cooling water pipes. Then, ammonia water is used to clean the sections, facilitating unobstructed flow and removal of impurities.

[0004] However, the hot ammonia water flushing device for the primary cooler mentioned above has shortcomings. It lacks a backflushing mechanism, and the coal dust carried by the gas and the tar residue entrained in the emulsion can easily cause blockage of the condensate spraying device, preventing it from reaching the required spray volume or even causing it to malfunction, thus reducing the flushing effect. At the same time, it is inconvenient to regularly disassemble, clean, maintain, and replace the condensate spraying device, reducing its effectiveness. Therefore, we propose a hot ammonia water flushing device for the primary cooler to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned shortcomings by providing a hot ammonia water flushing device for a primary cooler.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A hot ammonia water flushing device for a primary cooler includes a primary cooler body and an installation plate. The installation plate and the primary cooler body are provided with a disassembly, cleaning and replacement mechanism. The installation plate is provided with a hot ammonia water flushing mechanism, which includes a spray pipe and a backwash pipe fixedly installed on the installation plate. The bottom end of the backwash pipe is fixedly connected to the top of the spray pipe. The spray pipe and the backwash pipe are fixedly connected to a support base. The bottom of the spray pipe is provided with a rotating spraying mechanism.

[0008] As a preferred embodiment of this utility model, a mounting hole is provided on one side of the primary cooler body, the mounting plate is slidably sleeved in the mounting hole, a sealing ring one is fixedly sleeved on the outer side of the mounting plate, and a sealing ring two is fixedly connected to one side of the mounting plate, the sealing ring two movably abutting against one side of the primary cooler body.

[0009] As a preferred embodiment of this invention, the spray pipe is provided with a lower control valve, and the backwash pipe is provided with an upper control valve.

[0010] As a preferred embodiment of this utility model, an arc-shaped support plate is fixedly connected to the inner wall of the other side of the primary cooler body, and the spray pipe is movably placed inside the arc-shaped support plate.

[0011] As a preferred embodiment of this utility model, the rotating spraying mechanism includes several connecting pipes fixedly connected to the bottom of the spraying pipe, a water spraying disc rotatably connected to the bottom end of the connecting pipes, several lower nozzles fixedly connected to the bottom of the water spraying disc, several upper nozzles fixedly connected to the outer side of the water spraying disc, and the axis of the upper nozzles not intersecting with the axis of the water spraying disc.

[0012] As a preferred embodiment of this invention, a sealed bearing is fixedly connected to the top of the water spray plate, and the connecting pipe is fixedly sleeved inside the inner ring of the sealed bearing.

[0013] As a preferred embodiment of this utility model, the disassembly, cleaning, and replacement mechanism includes two slots on one side of the mounting plate, two grooves on one side of the primary cooler body, and two bearings fixedly connected to one side of the primary cooler body. A threaded sleeve is fixedly fitted inside the inner ring of each bearing, and a threaded rod is threadedly fitted inside the threaded sleeve. A movable plate is fixedly connected to one end of the threaded rod, and a bearing is fixedly connected to one side of the movable plate. A rotating shaft is fixedly fitted inside the inner ring of each bearing, and a limiting plate is fixedly connected to one end of the rotating shaft. A locking block is fixed to one side of the limiting plate, and two locking blocks are movably engaged in corresponding slots. Both limiting plates movably abut against one side of the mounting plate.

[0014] As a preferred embodiment of this utility model, guide grooves are provided on both the upper and lower inner walls of the groove, and guide blocks are slidably sleeved in the guide grooves. The two guide blocks are respectively fixedly connected to the top and bottom of the threaded rod, and rotating handles are fixedly connected to the top and bottom of the threaded sleeve.

[0015] In this utility model, a hot ammonia flushing device for a primary cooler is described. The upper control valve is closed, and the lower control valve is opened. The device connects to tar or emulsion (a mixture of tar and ammonia) via a spray pipe, allowing the tar or emulsion to enter the spray pipe and multiple connecting pipes and a spray plate. Because the axes of the multiple upper nozzles do not coincide with the axis of the spray plate, the impact of the high-pressure hot ammonia drives the rotation of the upper nozzles, spray plate, and lower nozzles, thus enabling the rotatable spraying of the hot ammonia to remove naphthalene from the coal gas. When the spray pipe, upper... When the nozzles, spray pans, and lower nozzles become clogged, close the lower control valve and open the upper control valve. This connects the backwash pipe to high-pressure hot ammonia water, which flushes the backwash pipe and spray pipe to the right end, achieving a backwashing effect. The hot ammonia water physically impacts and removes clogged coal dust, tar residue, and other substances, ensuring the normal use of the spray pipe and the continuous normal operation of the primary cooler. This significantly extends the cleaning, replacement, and maintenance cycle of the spray pipes and upper and lower nozzles, greatly improving the working efficiency of the primary cooler.

[0016] In this utility model, a hot ammonia water flushing device for a primary cooler is described. When the spray pipe needs cleaning, replacement, or maintenance, the two threaded sleeves are rotated. Guided and limited by the guide block and guide groove, the threaded sleeves drive the threaded rod, moving plate, rotating shaft, limiting plate, and locking block to move to the left and disengage from the locking groove, thus preventing the mounting plate from being locked. Then, the limiting plate is pushed outward to prevent it from limiting the mounting plate. At this time, the mounting plate, spray pipe, and backflushing pipe can be taken out for cleaning, replacement, and maintenance. After maintenance, the mounting plate, spray pipe, and backflushing pipe are put into the primary cooler body through the mounting hole. At this time, the spray pipe is placed in the arc-shaped support plate for support. The sealing of the installation is ensured by sealing ring one and sealing ring two to prevent liquid and air leakage. Then, the limiting plate is pushed inward to align the locking block with the locking groove. The threaded sleeves are rotated in reverse to move the threaded rod, moving plate, limiting plate, and locking block to the right and engage in the locking groove, thus securing the mounting plate.

[0017] This utility model has a reasonable structural design, which facilitates reverse flushing of the spray pipe and upper and lower nozzles, greatly delaying the cleaning, replacement and maintenance cycle of the spray pipe and upper and lower nozzles, ensuring the normal use of the spray pipe and the continuous long-term operation of the primary cooler body, improving the working efficiency of the primary cooler body, and at the same time facilitating the stable installation and quick disassembly of the spray pipe and backflushing pipe, making it easier to remove the spray pipe and backflushing pipe for cleaning, replacement and maintenance, and ensuring the effect of hot ammonia water flushing. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a hot ammonia water flushing device for a primary cooler proposed in this utility model;

[0019] Figure 2This is a sectional perspective view of a hot ammonia water flushing device for a primary cooler proposed in this utility model;

[0020] Figure 3 for Figure 2 A schematic diagram of the structure of part A;

[0021] Figure 4 This is a sectional perspective view of the disassembly, cleaning, and replacement mechanism of the hot ammonia water flushing device for a primary cooler proposed in this utility model.

[0022] In the diagram: 1. Primary cooler body; 2. Spray pipe; 3. Backwash pipe; 4. Lower control valve; 5. Upper control valve; 6. Mounting plate; 7. Disassembly, cleaning and replacement mechanism; 8. Rotary spraying mechanism; 9. Arc-shaped support plate; 10. Mounting hole; 11. Sealing ring one; 12. Sealing ring two; 13. Support base; 701. Groove; 702. Guide block; 703. Guide groove; 704. Bearing one; 705. Threaded rod; 706. Moving plate; 707. Bearing two; 708. Rotating shaft; 709. Threaded sleeve; 710. Rotating handle; 711. Limiting plate; 712. Locking block; 713. Locking groove; 81. Connecting pipe; 82. Sealed bearing; 83. Spray plate; 84. Lower nozzle; 85. Upper nozzle. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figure 1-4 A hot ammonia water flushing device for a primary cooler includes a primary cooler body 1 and an installation plate 6. The installation plate 6 and the primary cooler body 1 are provided with a disassembly, cleaning and replacement mechanism 7. The installation plate 6 is provided with a hot ammonia water flushing mechanism, which includes a spray pipe 2 and a backwash pipe 3 fixedly installed on the installation plate 6. The bottom end of the backwash pipe 3 is fixedly connected to the top of the spray pipe 2. The spray pipe 2 and the backwash pipe 3 are fixedly connected with a support base 13. The bottom of the spray pipe 2 is provided with a rotating spraying mechanism 8. The spray pipe 2 is provided with a lower control valve 4, and the backwash pipe 3 is provided with an upper control valve 5.

[0025] Furthermore, a mounting hole 10 is provided on one side of the primary cooler body 1, and the mounting plate 6 is slidably fitted into the mounting hole 10. A sealing ring 11 is fixedly fitted on the outer side of the mounting plate 6, and a sealing ring 12 is fixedly connected to one side of the mounting plate 6. The sealing ring 12 movably abuts against one side of the primary cooler body 1. Through the sealing ring 11 and the sealing ring 12, the sealing performance of the installation can be guaranteed, and leakage of liquid and gas can be avoided.

[0026] Furthermore, an arc-shaped support plate 9 is fixedly connected to the inner wall of the other side of the primary cooler body 1. The spray pipe 2 is movably placed inside the arc-shaped support plate 9, which helps to support the spray pipe 2 and improves the stability of the spray pipe 2 installation.

[0027] Furthermore, refer to Figure 2 and Figure 3 As shown, the rotary spraying mechanism 8 includes several connecting pipes 81 fixedly connected to the bottom of the spray pipe 2. The bottom end of the connecting pipe 81 is rotatably connected to a water spray plate 83. Several lower nozzles 84 are fixedly connected to the bottom of the water spray plate 83. Several upper nozzles 85 are fixedly connected to the outside of the water spray plate 83. The axis of the upper nozzles 85 does not intersect with the axis of the water spray plate 83.

[0028] Using the above scheme: close the upper control valve 5, open the lower control valve 4, and connect the spray pipe 2 to the tar or emulsion (tar-ammonia mixture). This allows the tar or emulsion to enter the spray pipe 2, multiple connecting pipes 81, and the spray plate 83. Because the axes of the multiple upper nozzles 85 do not coincide with the axis of the spray plate 83, the impact of the high-pressure hot ammonia water drives the rotation of the upper nozzles 85, the spray plate 83, and the lower nozzle 84, thus allowing for the rotatable spraying of the hot ammonia water to remove naphthalene from the coal gas. When the spray pipe 2, upper nozzles 85, and spray plate 83 are connected, the tar or emulsion can be sprayed into the spray plate 83. When the water pan 83 and the lower nozzle 84 become blocked, the lower control valve 4 is closed and the upper control valve 5 is opened. This connects the backwash pipe 3 with high-pressure hot ammonia water, which flushes the backwash pipe 3 and the right end of the spray pipe 2, achieving a backwashing effect. The hot ammonia water physically impacts and removes the blockage of coal dust, tar residue, and other substances, ensuring the normal use of the spray pipe 2 and the continuous normal operation of the primary cooler body 1. This greatly delays the cleaning, replacement, and maintenance cycle of the spray pipe 2 and the upper and lower nozzles, and significantly improves the working efficiency of the primary cooler body 1.

[0029] Furthermore, a sealed bearing 82 is fixedly connected to the top of the water spray disc 83, and the connecting pipe 81 is fixedly sleeved inside the inner ring of the sealed bearing 82 to ensure the sealing of the connection, while not hindering the rotation of the rotating water spray disc 83.

[0030] Furthermore, refer to Figure 1 , Figure 2 and Figure 4As shown, the disassembly, cleaning and replacement mechanism 7 includes two slots 713 on one side of the mounting plate 6, two grooves 701 on one side of the primary cooler body 1, and two bearings 704 fixedly connected to one side of the primary cooler body 1. A threaded sleeve 709 is fixedly fitted inside the inner ring of the bearing 704. A threaded rod 705 is threaded inside the threaded sleeve 709. A movable plate 706 is fixedly connected to one end of the threaded rod 705. A bearing 707 is fixedly connected to one side of the movable plate 706. A rotating shaft 708 is fixedly fitted inside the inner ring of the bearing 707. A limiting plate 711 is fixedly connected to one end of the rotating shaft 708. A locking block 712 is fixedly fixed to one side of the limiting plate 711. The two locking blocks 712 are respectively movably engaged in the corresponding slots 713. The two limiting plates 711 are both movably abutting against one side of the mounting plate 6.

[0031] Using the above method: When it is necessary to clean, replace or maintain the spray pipe 2, rotate the two threaded sleeves 709 by rotating the handle 710. Guided and limited by the guide block 702 and the guide groove 703, the threaded sleeves 709 drive the threaded rod 705, the moving plate 706, the rotating shaft 708, the limiting plate 711 and the locking block 712 to move to the left and disengage from the locking groove 713, thus not locking the mounting plate 6. Then, push the limiting plate 711 outward so that it does not limit the mounting plate 6. At this time, the mounting plate 6, the spray pipe 2 and the backwash can be connected. Remove pipe 3 for cleaning, replacement and maintenance. After maintenance, insert the mounting plate 6, spray pipe 2 and backflushing pipe 3 into the primary cooler body 1 through the mounting hole 10. At this time, the spray pipe 2 is placed in the arc-shaped support plate 9 for support. Then, push the limiting plate 711 inward so that the locking block 712 is aligned with the locking groove 713. Rotate the threaded sleeve 709 in reverse so that the threaded rod 705, moving plate 706, limiting plate 711 and locking block 712 move to the right and lock into the locking groove 713, thereby fixing the mounting plate 6 securely.

[0032] Furthermore, guide grooves 703 are provided on the upper and lower inner walls of the groove 701. Guide blocks 702 are slidably sleeved in the guide grooves 703. The two guide blocks 702 are fixedly connected to the top and bottom of the threaded rod 705 respectively. Rotating handles 710 are fixedly connected to the top and bottom of the threaded sleeve 709, which facilitates the rotation of the threaded sleeve 709 and at the same time guides and limits the threaded rod 705 so that it does not rotate with the threaded sleeve 709.

[0033] In this invention, during use, the upper control valve 5 is closed and the lower control valve 4 is opened. The spray pipe 2 is connected to tar or emulsion (a mixture of tar and ammonia), allowing the tar or emulsion to enter the spray pipe 2, multiple connecting pipes 81, and the spray plate 83. Because the axes of the multiple upper nozzles 85 do not coincide with the axis of the spray plate 83, the impact of the high-pressure hot ammonia drives the rotation of the upper nozzles 85, the spray plate 83, and the lower nozzle 84, thus allowing for the rotatable spraying of the hot ammonia to remove naphthalene from the coal gas. When the spray pipe 2 and the upper nozzles 85... When the spray plate 83 and the lower nozzle 84 become blocked, the lower control valve 4 is closed and the upper control valve 5 is opened. This connects the backwash pipe 3 with high-pressure hot ammonia water, which flushes the backwash pipe 3 and the right end of the spray pipe 2, achieving a backwashing effect. The hot ammonia water physically impacts and removes the blocked coal dust, tar residue and other substances, ensuring the normal use of the spray pipe 2 and the continuous normal operation of the primary cooler body 1. This greatly delays the cleaning, replacement and maintenance cycle of the spray pipe 2 and the upper and lower nozzles, and greatly improves the working efficiency of the primary cooler body 1.

[0034] When cleaning, replacement, or maintenance of the spray pipe 2 is required, rotating the handle 710 rotates the two threaded sleeves 709. Guided and limited by the guide block 702 and guide groove 703, the threaded sleeves 709 drive the threaded rod 705, moving plate 706, rotating shaft 708, limiting plate 711, and locking block 712 to move left, disengaging from the locking groove 713, thus preventing the mounting plate 6 from locking. Then, the limiting plate 711 is pushed outwards to prevent the mounting plate 6 from being locked. At this point, the mounting plate 6, spray pipe 2, and backwash pipe 3 can be removed for cleaning, replacement, and maintenance. After maintenance... Next, insert the mounting plate 6, spray pipe 2, and backflushing pipe 3 into the primary cooler body 1 through the mounting hole 10. At this time, the spray pipe 2 is placed in the arc-shaped support plate 9 for support. The sealing ring 11 and sealing ring 2 12 can ensure the sealing of the installation and prevent leakage of liquid and air. Then, push the limiting plate 711 inward so that the locking block 712 is aligned with the locking groove 713. Rotate the threaded sleeve 709 in reverse so that the threaded rod 705, moving plate 706, limiting plate 711 and locking block 712 move to the right and lock into the locking groove 713, thereby fixing the mounting plate 6 securely.

Claims

1. A hot ammonia water flushing device for a primary cooler, characterized in that, The device includes a primary cooler body (1) and an installation plate (6). The installation plate (6) and the primary cooler body (1) are provided with a disassembly, cleaning and replacement mechanism (7). The installation plate (6) is provided with a hot ammonia water flushing mechanism. The hot ammonia water flushing mechanism includes a spray pipe (2) and a backwash pipe (3) fixedly installed on the installation plate (6). The bottom end of the backwash pipe (3) is fixedly connected to the top of the spray pipe (2). The spray pipe (2) and the backwash pipe (3) are fixedly connected with a support base (13). The bottom of the spray pipe (2) is provided with a rotating spraying mechanism (8).

2. The hot ammonia water flushing device for a primary cooler according to claim 1, characterized in that, The primary cooler body (1) has an installation hole (10) on one side. The installation plate (6) is slidably fitted in the installation hole (10). A sealing ring (11) is fixedly fitted on the outside of the installation plate (6). A sealing ring (12) is fixedly connected to one side of the installation plate (6). The sealing ring (12) moves against one side of the primary cooler body (1).

3. The hot ammonia water flushing device for a primary cooler according to claim 1, characterized in that, The spray pipe (2) is equipped with a lower control valve (4), and the backwash pipe (3) is equipped with an upper control valve (5).

4. The hot ammonia water flushing device for a primary cooler according to claim 1, characterized in that, An arc-shaped support plate (9) is fixedly connected to the inner wall of the other side of the primary cooler body (1), and the spray pipe (2) is movably placed inside the arc-shaped support plate (9).

5. The hot ammonia water flushing device for a primary cooler according to claim 1, characterized in that, The rotating spraying mechanism (8) includes several connecting pipes (81) fixedly connected to the bottom of the spray pipe (2). The bottom end of the connecting pipe (81) is rotatably connected to a water spray plate (83). Several lower nozzles (84) are fixedly attached to the bottom of the water spray plate (83). Several upper nozzles (85) are fixedly connected to the outside of the water spray plate (83). The axis of the upper nozzles (85) does not intersect with the axis of the water spray plate (83).

6. The hot ammonia water flushing device for a primary cooler according to claim 5, characterized in that, A sealed bearing (82) is fixedly connected to the top of the water spray plate (83), and the connecting pipe (81) is fixedly sleeved inside the inner ring of the sealed bearing (82).

7. The hot ammonia water flushing device for a primary cooler according to claim 1, characterized in that, The disassembly, cleaning, and replacement mechanism (7) includes two slots (713) on one side of the mounting plate (6), two grooves (701) on one side of the primary cooler body (1), and two bearings (704) fixedly connected to one side of the primary cooler body (1). A threaded sleeve (709) is fixedly fitted inside the inner ring of the bearing (704), and a threaded rod (705) is threadedly fitted inside the threaded sleeve (709). A movable plate is fixedly connected to one end of the threaded rod (705). (706) A bearing 2 (707) is fixedly connected to one side of the movable plate (706). A rotating shaft (708) is fixedly sleeved inside the inner ring of the bearing 2 (707). A limiting plate (711) is fixedly connected to one end of the rotating shaft (708). A locking block (712) is fixed to one side of the limiting plate (711). The two locking blocks (712) are respectively movably locked in the corresponding locking groove (713). The two limiting plates (711) are both movably abutting against one side of the mounting plate (6).

8. The hot ammonia water flushing device for a primary cooler according to claim 7, characterized in that, The groove (701) has guide grooves (703) on its upper and lower inner walls. Guide blocks (702) are slidably fitted in the guide grooves (703). The two guide blocks (702) are fixedly connected to the top and bottom of the threaded rod (705) respectively. Rotary handles (710) are fixedly connected to the top and bottom of the threaded sleeve (709).

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