Phosphoric acid transfer line filter

Abstract

The utility model relates to a kind of phosphoric acid delivery pipeline filters, comprising: filter cartridge, it has import, and butt joint has outlet pipe, butt joint disc is detachably connected in the side of filter cartridge away from outlet pipe, and expansion chamber one and expansion chamber two are provided on filter cartridge;First filtering structure, it includes first filter screen and adjusting rod and U-shaped link rod, wherein, first filter screen is located in filter cartridge, and located below expansion chamber two, U-shaped link rod is fixed between adjusting rod and first filter screen, thread one is set on the outside of adjusting rod, adjusting rod is connected with butt joint disc by this thread one;Second filtering structure;Closed structure.The phosphoric acid delivery pipeline filter, the phosphoric acid delivery pipeline filter, in continuously to phosphoric acid liquid delivery, can realize sustained filtration, and can be disassembled and cleaned to first filtering structure in filtering, without stopping the continuous delivery operation of phosphoric acid, guarantee the delivery efficiency of phosphoric acid liquid.

Description

Technical Field

[0001] This utility model relates to the field of phosphoric acid manufacturing technology, specifically a phosphoric acid delivery pipeline filter. Background Technology

[0002] Monoammonium phosphate (MAP) is an important raw material widely used in chemical production, primarily as a fertilizer and food additive. It is highly water-soluble and provides plants with the two main nutrients, nitrogen and phosphorus. The manufacturing process of MAP involves multiple chemical reactions and physical operations; therefore, in-depth research into its manufacturing methods can help improve production efficiency, reduce costs, and enhance product quality.

[0003] The steps of phosphoric acid manufacturing are: batching, reaction, filtration, concentration, crystallization, centrifugation, drying, and packaging. To ensure that there are no impurities during phosphoric acid concentration, the monoammonium phosphate solution needs to be filtered in the filtration process to remove impurities. The existing filter is set on one side of the discharge port of the reaction device and on the other side of the inlet port of the concentration device, with valves installed on both sides. However, due to the limited pipeline conveying capacity and the continuous conveying process, this design requires stopping the conveying operation when replacing or cleaning the filter screen, which interferes with the conveying and affects the conveying efficiency. Therefore, this application proposes a phosphoric acid conveying pipeline filter. Utility Model Content

[0004] This invention provides a phosphoric acid delivery pipeline filter to solve the problem that the filter screen needs to be removed and the machine stopped during continuous phosphoric acid delivery, which interferes with the normal delivery of phosphoric acid.

[0005] The technical solution of this utility model is as follows: A phosphoric acid conveying pipeline filter, comprising: The filter cartridge has an inlet and an outlet pipe. A docking plate is detachably connected to the side of the filter cartridge away from the outlet pipe. An expansion chamber one and an expansion chamber two are provided on the filter cartridge. The first filter structure includes a first filter screen, an adjusting rod, and a U-shaped connecting rod. The first filter screen is located in the filter cylinder and below the second expansion chamber. The U-shaped connecting rod is fixed between the adjusting rod and the first filter screen. A thread is provided on the outside of the adjusting rod, and the adjusting rod is threaded to the connecting plate through this thread. The second filter structure is vertically and retractably connected to the expansion chamber. The enclosed structure is connected to the expansion chamber in a liftable manner.

[0006] Furthermore, a bolt is provided between the docking plate and the filter cartridge, and a threaded hole is provided on one side of the docking plate. The adjusting rod and the docking plate are connected by the threaded hole and the threaded thread.

[0007] Furthermore, a knob cap is provided on the side of the adjusting rod away from the U-shaped connecting rod for the operator to hold.

[0008] Furthermore, nut one and nut two are respectively provided on expansion chamber one and expansion chamber two.

[0009] Furthermore, the second filter structure includes a second filter screen and a lifting rod, wherein a threaded second and a threaded third are provided on the outer side of the lifting rod, and a nut is threadedly connected to the outer side of the threaded third.

[0010] Furthermore, the top of the lifting rod is provided with a handle located above the expansion chamber.

[0011] Furthermore, the enclosed structure includes an enclosed plate and a lifting rod II, wherein a threaded fourth and a threaded fifth are provided on the outer side of the lifting rod II in an up-down distribution, and a nut I is threadedly connected to the outer side of the threaded fifth.

[0012] Furthermore, the top of the lifting rod two is provided with a handle two located above the expansion chamber one.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial technical effects: This phosphoric acid delivery pipeline filter, during the continuous delivery of phosphoric acid liquid, adjusts the first filter screen to move towards the docking plate, thereby lowering and adjusting the second filter screen and the sealing plate to replace the first filter screen for filtration. Subsequently, the docking plate and the first filter structure can be removed and cleaned as a whole, achieving continuous filtration. Moreover, the first filter structure can be disassembled and cleaned during filtration without stopping the continuous delivery of phosphoric acid, avoiding delivery interference and ensuring the delivery efficiency of phosphoric acid liquid. Attached Figure Description

[0014] Figure 1 A schematic diagram of the structure of a phosphoric acid delivery pipeline filter provided in an embodiment of this utility model; Figure 2 for Figure 1 A schematic diagram of a half-section structure; Figure 3 for Figure 1 A magnified view of a portion of region A in the middle; Figure 4 for Figure 1 A schematic diagram of the second filter structure, the first closed structure nut, and the second closed structure nut.

[0015] The attached diagram lists the components represented by each number as follows: 1. Filter cartridge; 11. Inlet; 12. Outlet pipe; 13. Connecting plate; 14. Expansion chamber one; 15. Expansion chamber two; 2. First filter structure; 21. First filter screen; 22. Adjusting rod; 23. U-shaped connecting rod; 3. Second filter structure; 31. Second filter screen; 32. Lifting rod one; 33. Thread two; 34. Thread three; 35. Handle one; 4. Enclosed structure; 41. Enclosed plate; 42. Lifting rod two; 43. Thread four; 44. Thread five; 45. Handle two; 5. Nut one; 6. Nut two. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0017] like Figure 1 and Figure 2 As shown, a phosphoric acid delivery pipeline filter in this embodiment includes a filter cartridge 1, a first filter structure 2, a second filter structure 3, and a closed structure 4. Both the first filter structure 2 and the second filter structure 3 are used to filter impurities in the phosphoric acid liquid. During operation, one of the first filter structure 2 or the second filter structure 3 is used for filtration. When, for example, the first filter structure 2 needs to be cleaned, the position of the first filter structure 2 is adjusted first, and during this adjustment process, the second filter structure 3 and the closed structure 4 are lowered and adjusted so that the second filter structure 3 replaces the first filter structure 2 for filtration, thereby realizing the online replacement of the first filter structure 2. In this way, there is no need to stop the continuous delivery of phosphoric acid, avoiding delivery interference and ensuring the delivery efficiency of the phosphoric acid liquid.

[0018] To facilitate understanding of the specific structure and position of filter cartridge 1, first filter structure 2, second filter structure 3, and closed structure 4 in the above structure, they will be described in turn.

[0019] First, such as Figure 1 As shown, the filter cartridge 1 in this embodiment has an inlet 11 located at the bottom of the filter cartridge 1, and the filter cartridge 1 is connected to an outlet pipe 12. The outlet pipe 12 is positioned at... Figure 1 On the left side of the filter cartridge 1, a docking plate 13 is detachably connected to the side of the filter cartridge 1 away from the outlet pipe 12. At this time, bolts are provided between the docking plate 13 and the filter cartridge 1 to form a detachable connection relationship between the docking plate 13 and the filter cartridge 1. An expansion chamber 14 and an expansion chamber 2 15 are provided on the filter cartridge 1.

[0020] Secondly, to allow the first filter structure 2 to be easily and quickly removed, such as Figure 2As shown, the first filter structure 2 in this embodiment includes a first filter screen 21, an adjusting rod 22, and a U-shaped connecting rod 23. The first filter screen 21 is located in the filter cylinder 1 and is used to filter the phosphoric acid liquid and isolate impurities in the phosphoric acid liquid. The first filter screen 21 is located below the expansion chamber 15. The U-shaped connecting rod 23 is fixed between the adjusting rod 22 and the first filter screen 21. A thread is provided on the outside of the adjusting rod 22, and the adjusting rod 22 is threadedly connected to the docking plate 13 through this thread.

[0021] Further explanation, such as Figure 3 As shown, a threaded hole is provided on one side of the docking plate 13. The adjusting rod 22 and the docking plate 13 are connected by the threaded hole and the threaded thread, so that the adjusting rod 22 does not move when it is not rotating. Furthermore, a knob cap is provided on the side of the adjusting rod 22 away from the U-shaped connecting rod 23 for the operator to hold.

[0022] When designed in this way, such as Figure 2 As shown, under normal conditions, the first filter screen 21 is located in the channel between the inlet 11 and the outlet pipe 12 in the filter cylinder 1, and is subject to the threaded relationship between the threaded thread and the threaded hole, so that the adjusting rod 22 does not move when it is not rotating. When it is necessary to remove the first filter screen 21, the removal process is to rotate the knob cap until the adjusting rod 22 is no longer threadedly connected to the mating plate 13, and then pull the knob cap to quickly adjust the position of the first filter screen 21 in the filter cylinder 1.

[0023] To enable online replacement of the first filter screen 21, the second filter structure 3 designed in this embodiment is vertically and vertically connected to the second expansion chamber 15, and the closed structure 4 is vertically and vertically connected to the first expansion chamber 14.

[0024] Further explanation, such as Figure 1 , 2 As shown in Figure 4, in this embodiment, expansion chamber 14 and expansion chamber 2 15 are respectively provided with nut 5 and nut 6. The second filter structure 3 is connected to expansion chamber 2 15 in a liftable manner through nut 5, and the closed structure 4 is connected to expansion chamber 14 in a liftable manner through nut 6.

[0025] like Figure 2 and 4As shown, in one embodiment, the second filter structure 3 includes a second filter screen 31 and a lifting rod 32, while the closed structure 4 includes a closed plate 41 and a lifting rod 42. The lifting rod 32 in the second filter structure 3 is provided with a threaded second 33 and a threaded third 34 distributed vertically on its outer side. Normally, the nut 6 is threadedly connected to the outer side of the threaded third 34. When the position of the first filter screen 21 is adjusted to the area between the expansion chamber 15 and the inlet 11 in the filter cylinder 1, the nut 6 is rotated to release the restriction on the lifting rod 32. The lifting rod 32 and the second filter screen 31 will then move downward until the nut 6 is threadedly connected to the outer side of the threaded third 34. At this time, the second filter screen 31 is located at the initial position of the first filter screen 21, and the second filter screen 31 replaces the first filter screen 21 for filtration.

[0026] Furthermore, the top of the lifting rod 32 is provided with a handle 35 located above the expansion chamber 15 to provide a gripping space for adjusting the position of the second filter structure 3. The closed structure 4 includes a closed plate 41 and a lifting rod 42. The lifting rod 42 has a threaded fourth 43 and a threaded fifth 44 arranged vertically on its outer side. Similarly, under normal conditions, the nut 5 is threaded to the outer side of the threaded fifth 44. When the first filter screen 21 is adjusted to the area between the docking plate 13 and the expansion chamber 14 in the filter cylinder 1, the nut 5 is rotated to release the restriction on the lifting rod 42. The lifting rod 42 and the closed plate 41 move down. When the nut 5 is threaded to the outer side of the threaded fourth 43, the closed plate 41 will be located in the filter cylinder 1 and below the expansion chamber 14, thus blocking water. In this way, the docking plate 13 and the first filter structure 2 can be removed and cleaned as a whole.

[0027] Furthermore, the top of the lifting rod 42 is provided with a handle 45 located above the expansion chamber 14 to provide a gripping space for adjusting the position of the enclosed structure 4.

[0028] Working principle: When, for example, the first filter structure 2 needs cleaning, first, rotate the knob cap until the adjusting rod 22 is no longer threaded onto the mating plate 13, then pull the knob cap.

[0029] When the position of the first filter screen 21 is adjusted to the area between the expansion chamber 2 15 and the inlet 11 in the filter cartridge 1, the second nut 2 6 is rotated to release the limit on the lifting rod 1 32. The lifting rod 1 32 and the second filter screen 31 will then move down until the second nut 2 6 is threadedly connected to the outside of the third thread 34. At this time, the second filter screen 31 is located in the initial position of the first filter screen 21, and the second filter screen 31 replaces the first filter screen 21 for filtration.

[0030] Subsequently, when the first filter screen 21 is adjusted to the area between the connecting plate 13 and the expansion chamber 14 in the filter cylinder 1, the nut 5 is rotated to release the limit on the lifting rod 42. The lifting rod 42 and the sealing plate 41 move down. When the nut 5 is threaded to the outside of the thread 43, the sealing plate 41 will be located in the filter cylinder 1 and below the expansion chamber 14, thus achieving water blocking.

[0031] Finally, the first filter structure 2 can be replaced online by simply removing and cleaning the docking plate 13 and the first filter structure 2 as a whole, so as to achieve continuous filtration and disassemble and clean the first filter structure 2 during filtration.

[0032] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A phosphoric acid delivery pipeline filter, characterized in that, include: The filter cartridge (1) has an inlet (11) and an outlet pipe (12) connected to it. A docking plate (13) is detachably connected to the side of the filter cartridge (1) away from the outlet pipe (12). An expansion chamber one (14) and an expansion chamber two (15) are provided on the filter cartridge (1). The first filter structure (2) includes a first filter screen (21), an adjusting rod (22), and a U-shaped connecting rod (23). The first filter screen (21) is located in the filter cylinder (1) and below the expansion chamber (15). The U-shaped connecting rod (23) is fixed between the adjusting rod (22) and the first filter screen (21). A thread is provided on the outside of the adjusting rod (22), and the adjusting rod (22) is threaded to the docking plate (13) through this thread. The second filter structure (3) is vertically and vertically connected to the second expansion chamber (15); The enclosed structure (4) is vertically and vertically connected to the expansion chamber (14).

2. A phosphoric acid delivery pipeline filter according to claim 1, characterized in that: Bolts are provided between the docking plate (13) and the filter cylinder (1), and a threaded hole is provided on one side of the docking plate (13). The adjusting rod (22) and the docking plate (13) are connected by the threaded hole and the threaded thread.

3. A phosphoric acid delivery pipeline filter according to claim 2, characterized in that: The adjusting rod (22) has a knob cap on the side away from the U-shaped connecting rod (23) for the operator to hold.

4. A phosphoric acid delivery pipeline filter according to claim 1, characterized in that: Nut 1 (5) and Nut 2 (6) are respectively provided on the expansion chamber 1 (14) and expansion chamber 2 (15).

5. A phosphoric acid delivery pipeline filter according to claim 4, characterized in that: The second filter structure (3) includes a second filter screen (31) and a lifting rod (32), wherein a threaded second (33) and a threaded third (34) distributed vertically are provided on the outside of the lifting rod (32), and a nut (6) is threadedly connected to the outside of the threaded third (34).

6. A phosphoric acid delivery pipeline filter according to claim 5, characterized in that: The top of the lifting rod (32) is provided with a handle (35) located above the expansion chamber (15).

7. A phosphoric acid delivery pipeline filter according to claim 6, characterized in that: The closed structure (4) includes a closed plate (41) and a lifting rod (42), wherein a threaded fourth (43) and a threaded fifth (44) are provided on the outside of the lifting rod (42) in an up-down distribution, and a nut (5) is threadedly connected to the outside of the threaded fifth (44).

8. A phosphoric acid delivery pipeline filter according to claim 7, characterized in that: The top of the lifting rod 2 (42) is provided with a handle 2 (45) located above the expansion chamber 1 (14).

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