Washer for treating tail gas generated in preparation of monoammonium phosphate

Abstract

The utility model discloses a tail gas treatment scrubber for monoammonium phosphate preparation, which belongs to the field of tail gas treatment equipment and comprises a tower body, a gas inlet and a gas outlet communicated with the tower body are respectively arranged at the bottom and the top of the tower body, and a conveying mechanism for conveying spray liquid is arranged on one side of the bottom of the tower body. The tower body is internally provided with a spraying mechanism which is matched with the conveying mechanism and facilitates disassembly, assembly and replacement of the nozzles and adjustment of the number of the nozzles, filler is arranged at the position, located below the spraying mechanism, in the tower body, and the spraying mechanism comprises a positioning plate arranged in the tower body; a plurality of mounting holes are formed in the positioning plate in the circumferential direction of the positioning plate, and a spray head assembly is detachably mounted on the positioning plate through the mounting holes. According to the monoammonium phosphate preparation tail gas treatment washer, blocked, abraded or aged spray headers can be timely and quickly replaced, and spray headers with poor performance can be timely found and replaced, so that stable operation and high-efficiency performance of a washing tower are ensured.

Description

Technical Field

[0001] This utility model relates to the technical field of exhaust gas treatment equipment, and in particular to a scrubber for exhaust gas treatment during the preparation of monoammonium phosphate. Background Technology

[0002] The monoammonium phosphate (MAP) tail gas scrubber is a key piece of equipment used for tail gas purification during the MAP production process. Its main function is to remove harmful substances such as dust and phosphates, as well as other potential pollutants, from the tail gas, ensuring that emissions meet environmental protection requirements. Through the scrubbing process, particulate matter and soluble pollutants in the tail gas are captured and removed by the scrubbing liquid, thus purifying the tail gas. The working principle of the tail gas scrubber is to fully contact the waste gas with the scrubbing liquid, utilizing various methods such as dissolution, adsorption, and chemical reactions to convert harmful substances in the waste gas into harmless substances.

[0003] In exhaust gas scrubbers, the spray head is a key component, and its performance directly affects the scrubbing effect. When the spray head is clogged, worn, or aged, it needs to be replaced in time to ensure normal spraying. However, in current scrubbers, the spray head is installed with several bolts and fasteners. When it is necessary to disassemble and replace the spray head, it is necessary to perform complicated disassembly, which leads to a decrease in the working efficiency of the scrubber. Moreover, the inconvenience of replacing the spray head causes the scrubber to have low reliability. Utility Model Content

[0004] The purpose of this utility model is to solve the problems of the inconvenience of replacing the spray head on the existing scrubber, which leads to the reduction of the scrubber's working efficiency and the low reliability of the scrubber caused by the inconvenience of replacing the spray head, and to propose a scrubber for treating the tail gas of monoammonium phosphate preparation.

[0005] To achieve the above objectives, the present invention employs the following technology: a monoammonium phosphate preparation tail gas treatment scrubber, comprising a tower body, wherein an air inlet and an exhaust outlet are respectively provided at the bottom and top of the tower body and are connected thereto; a conveying mechanism for conveying spray liquid is provided on one side of the bottom of the tower body; a spraying mechanism that cooperates with the conveying mechanism to facilitate the disassembly and replacement of nozzles and adjustment of the number of nozzles is provided inside the tower body; and packing material is provided inside the tower body below the spraying mechanism.

[0006] As a further description of the above technical solution: the spraying mechanism includes a positioning plate disposed inside the tower body, the positioning plate having a plurality of mounting holes along its circumferential direction, and a spray head assembly being detachably mounted on the positioning plate through the mounting holes.

[0007] As a further description of the above technical solution: the nozzle assembly includes a spray head disposed on a connecting frame, the top of the connecting frame is provided with a mounting base that mates with a mounting hole, and the spray head is provided with a connecting hose.

[0008] As a further description of the above technical solution: a limiting block is provided on the mounting base through the mounting groove, a spring is provided between the limiting block and the inner wall of the mounting groove, and a pull plate with a through opening is provided on the limiting block.

[0009] As a further description of the above technical solution: the spray head is movably connected to the connecting frame via a mounting plate hinged to the bottom of the connecting frame, and the bottom of the connecting frame is provided with locking bolts for locking and positioning the mounting plate.

[0010] As a further description of the above technical solution: the conveying mechanism includes a liquid storage tank, and a conveying pipe extending into the tower body is provided on the liquid storage tank via a pressure pump. A liquid separation component is provided on the conveying pipe above the positioning plate.

[0011] As a further description of the above technical solution: the liquid distribution assembly includes a flow divider connected to the delivery pipe, the flow divider having a number of connectors equal to the number of mounting holes along its circumferential direction, and a control valve being provided on the connector.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0013] The spray mechanism allows for the timely and quick replacement of clogged, worn, or aging spray heads, simplifying the maintenance process, improving work efficiency, and helping to promptly identify and replace malfunctioning spray heads, thereby ensuring the stable operation and high efficiency of the scrubbing tower. Attached Figure Description

[0014] Figure 1 A schematic diagram of the overall structure according to an embodiment of the present utility model is shown;

[0015] Figure 2 A partially cutaway schematic diagram according to an embodiment of the present invention is shown;

[0016] Figure 3 A schematic diagram of the spraying mechanism provided according to an embodiment of the present invention is shown;

[0017] Figure 4 A schematic diagram of the nozzle assembly provided according to an embodiment of the present invention is shown;

[0018] Figure 5 A schematic diagram of the connecting frame provided according to an embodiment of the present utility model is shown;

[0019] Figure 6 A schematic diagram of the conveying mechanism provided according to an embodiment of the present invention is shown;

[0020] Figure 7 A schematic diagram of the liquid separation assembly provided according to an embodiment of the present invention is shown.

[0021] Legend:

[0022] 1. Tower body; 2. Air inlet; 3. Exhaust outlet; 4. Conveying mechanism; 41. Liquid storage tank; 42. Pressure pump; 43. Conveying pipe; 44. Liquid distribution assembly; 441. Diverter seat; 442. Connector; 443. Control valve; 5. Packing; 6. Spraying mechanism; 61. Positioning plate; 62. Mounting hole; 63. Sprayer assembly; 631. Connecting frame; 6311. Mounting plate; 6312. Locking bolt; 632. Mounting seat; 633. Limiting block; 634. Spring; 635. Pull plate; 636. Sprayer head; 637. Connecting hose. 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. 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] Reference Figures 1-7 This embodiment provides a tail gas treatment scrubber for monoammonium phosphate preparation, including a tower body 1. The bottom and top of the tower body 1 are respectively provided with an air inlet 2 and an exhaust outlet 3 connected to it. A conveying mechanism 4 for conveying spray liquid is provided on one side of the bottom of the tower body 1. The interior of the tower body 1 is provided with a spraying mechanism 6 that cooperates with the conveying mechanism 4 to facilitate the disassembly and replacement of the spray nozzles and the adjustment of the number of spray nozzles. The interior of the tower body 1 is provided with a packing 5 located below the spraying mechanism 6. The conveying mechanism 4 includes a liquid storage tank 41. A conveying pipe 43 extending into the interior of the tower body 1 is provided on the liquid storage tank 41 through a pressure pump 42. A liquid separation component 44 is provided on the conveying pipe 43 located above the positioning plate 61.

[0025] In this invention, the air inlet 2 of the tower body 1 is connected to the exhaust pipe of the monoammonium phosphate preparation equipment, allowing the exhaust gas to enter the tower body 1 through the air inlet 2. The storage tank 41 contains washing liquid, which is delivered to the spraying mechanism 6 through the liquid separation component 44 by the pressure pump 42 and the delivery pipe 43. The spraying mechanism 6 washes the exhaust gas entering the tower body 1. The washing liquid and the exhaust gas are in full contact on the packing 5. The packing 5 is used to increase the gas-liquid contact area, so that the exhaust gas and the liquid on the surface of the packing 5 are in full contact, thereby realizing the absorption, dissolution or chemical reaction of harmful substances in the exhaust gas, and realizing the treatment of monoammonium phosphate exhaust gas.

[0026] Specifically, such as Figure 2 , Figure 3 , Figure 6 and Figure 7 As shown, the spraying mechanism 6 includes a positioning plate 61 disposed inside the tower body 1. The positioning plate 61 has a plurality of mounting holes 62 along its circumferential direction, and a nozzle assembly 63 is detachably mounted on the positioning plate 61 through the mounting holes 62. The nozzle assembly 63 includes a spray head 636 disposed on a connecting frame 631. The top of the connecting frame 631 is provided with a mounting seat 632 that mates with the mounting holes 62. A connecting hose 637 is provided on the spray head 636. The liquid distribution assembly 44 includes a diversion seat 441 that communicates with the delivery pipe 43. The diversion seat 441 has the same number of connectors 442 as the mounting holes 62 along its circumferential direction, and a control valve 443 is provided on the connector 442.

[0027] The positioning plate 61 is arranged in a ring and fixed on the inner wall of the tower body 1. Several mounting holes 62 arranged at equal intervals on the ring-shaped positioning plate 61 are used for the installation of the nozzle assembly 63. When the washer is in use, the appropriate number of nozzle assemblies 63 can be selected for installation according to the washing needs, so as to adjust the number of nozzle assemblies 63 and the spacing between the nozzle assemblies 63, so that the washer can adapt to different washing needs.

[0028] The pressure pump 42 delivers the washing liquid into the diverter seat 441 through the delivery pipe 43. The diverter seat 441 has a hollow structure, and its connector 442 is connected to its interior. After selecting the appropriate number of nozzle assemblies 63, the mounting base 632 on the connecting frame 631 cooperates with the mounting hole 62 to install the spray head 636. The connecting hose 637 of the spray head 636 is connected to the connector 442, and the control valve 443 on the corresponding connector 442 is opened. The number of connectors 442, which are the same as the number of mounting holes 62, can meet the needs of adjusting the number of spray heads 636. The washing liquid in the diverter seat 441 is delivered into the spray head 636 through the connecting hose 637 and then sprayed out, thereby washing the exhaust gas.

[0029] Specifically, such as Figures 3-5As shown, a limiting block 633 is provided on the mounting base 632 through the mounting groove. A spring 634 is provided between the limiting block 633 and the inner wall of the mounting groove. A pull plate 635 with a through opening is provided on the limiting block 633. The spray head 636 is movably connected to the connecting frame 631 through a mounting plate 6311 hinged to the bottom of the connecting frame 631. A locking bolt 6312 for locking and positioning the mounting plate 6311 is provided at the bottom of the connecting frame 631.

[0030] When it is necessary to replace a clogged, worn, or aged spray head 636, the limit block 633 is pulled by the pull plate 635, causing the limit block 633 to compress the spring 634 and retract into the mounting groove. Then, the mounting base 632 can be pulled out from the mounting hole 62, thus realizing convenient disassembly and assembly of the spray head 636, simplifying the maintenance process, improving work efficiency, and helping to promptly identify and replace poorly performing spray heads 636, thereby ensuring the stable operation and high efficiency of the washing tower. The spray head 636 can also be angled during installation. After the locking bolt 6312 at the bottom of the connecting frame 631 is loosened, the mounting plate 6311 used to install the spray head 636 can be hinged and rotated at the bottom of the connecting frame 631, thereby realizing the adjustment of the spray head 636 angle to meet different washing needs.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A tail gas treatment scrubber for monoammonium phosphate preparation, characterized in that, The tower body (1) includes an air inlet (2) and an exhaust outlet (3) connected to the bottom and top of the tower body (1), respectively. A conveying mechanism (4) for conveying spray liquid is provided on one side of the bottom of the tower body (1). A spraying mechanism (6) that cooperates with the conveying mechanism (4) is provided inside the tower body (1) to facilitate the disassembly and replacement of the nozzles and the adjustment of the number of nozzles. A packing material (5) is provided inside the tower body (1) below the spraying mechanism (6).

2. The tail gas treatment scrubber for monoammonium phosphate preparation according to claim 1, characterized in that, The spraying mechanism (6) includes a positioning plate (61) disposed inside the tower body (1). The positioning plate (61) has a plurality of mounting holes (62) along its circumferential direction, and a nozzle assembly (63) is detachably mounted on the positioning plate (61) through the mounting holes (62).

3. The tail gas treatment scrubber for monoammonium phosphate preparation according to claim 2, characterized in that, The nozzle assembly (63) includes a spray head (636) mounted on a connecting frame (631). The top of the connecting frame (631) is provided with a mounting base (632) that mates with a mounting hole (62). A connecting hose (637) is provided on the spray head (636).

4. The tail gas treatment scrubber for monoammonium phosphate preparation according to claim 3, characterized in that, The mounting base (632) is provided with a limiting block (633) through the mounting groove. A spring (634) is provided between the limiting block (633) and the inner wall of the mounting groove, and a pull plate (635) with a through opening is provided on the limiting block (633).

5. A tail gas treatment scrubber for monoammonium phosphate preparation according to claim 4, characterized in that, The spray head (636) is movably connected to the connecting frame (631) via a mounting plate (6311) hinged to the bottom of the connecting frame (631), and the bottom of the connecting frame (631) is provided with a locking bolt (6312) for locking and positioning the mounting plate (6311).

6. A tail gas treatment scrubber for monoammonium phosphate preparation according to claim 3, 4, or 5, characterized in that, The conveying mechanism (4) includes a liquid storage tank (41), and a conveying pipe (43) extending into the tower body (1) is provided on the liquid storage tank (41) via a pressure pump (42). A liquid separation component (44) is provided on the conveying pipe (43) above the positioning plate (61).

7. A tail gas treatment scrubber for monoammonium phosphate preparation according to claim 6, characterized in that, The liquid distribution assembly (44) includes a flow divider (441) connected to the delivery pipe (43). The flow divider (441) has a number of connectors (442) equal to the number of mounting holes (62) along its circumferential direction, and a control valve (443) is provided on the connector (442).

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