Distributor and hydrochloric acid refining equipment with same

Abstract

The invention relates to the technical field of hydrochloric acid refining adsorption, and discloses a distributor and hydrochloric acid refining equipment with the same, the distributor comprises: a housing, the bottom of which is provided with a mounting port; a containing cavity is defined by the inner side peripheral wall of the shell, and the end, away from the mounting opening in the vertical direction, in the containing cavity is suitable for containing adsorption filler; the filter layer is arranged in the accommodating cavity and is close to one end of the mounting opening in the vertical direction, and the filter layer is suitable for preventing the adsorption filler from flowing out of the mounting opening; the perforated plate covers the mounting opening, a plurality of through holes are formed in the perforated plate, the diameter of the through holes is smaller than the particle diameter of the filter layer, and the perforated plate is suitable for blocking the filter layer in the containing cavity. According to the invention, the adsorption filler can be prevented from leaking through a short path in the operation process, and a filter layer which is thick enough can be formed by laying a small amount of the filter filler in the shell, so that the barrel of the distributor does not need to be lengthened, and the filling amount of the filter filler can be reduced on the premise of ensuring normal work.

Description

Technical Field

[0001] The invention relates to the technical field of hydrochloric acid refining adsorption, and in particular to a distributor and hydrochloric acid refining equipment having the same. Background Art

[0002] In hydrochloric acid refining adsorption equipment, a filter screen is usually set to intercept and carry resin particles of a certain size, ensuring that the resin has a higher adsorption effect and smaller filtration resistance.

[0003] In the prior art, such as Figure 1 As shown, a porous tube filter cartridge 91 made of PTFE is usually arranged at the bottom of the cylinder 90 of the adsorption equipment to achieve the effect of water distribution, and then quartz sand 92 is laid on the outside of the porous tube filter cartridge 91 to prevent the adsorption filler 93 from flowing out of the water distribution port of the cylinder 90. However, on the one hand, since one side of the porous tube filter cartridge 91 along the vertical direction is too close to the upper surface of the quartz sand 92, it is easy to cause the adsorption filler 93 to leak out through the short path S. If the filling thickness of the quartz sand 92 is further increased, the size of the cylinder 90 will be enlarged, and the equipment cost will be increased; on the other hand, the larger the structural volume of the porous tube filter cartridge 91, the weaker the strength. Since the porous tube filter cartridge 91 is a plastic pipe, the larger the pipe is, the easier it is to deform at a certain thickness. If the strength of the porous tube filter cartridge 91 is enhanced by further increasing the thickness of the porous tube filter cartridge 91, not only the number of openings is reduced, resulting in a decrease in the flux of the equipment, but also the difficulty of drilling holes on the pipe and the difficulty of PTFE welding are easily increased, which increases the difficulty of processing and manufacturing the equipment. Summary of the invention

[0004] In view of this, the present invention provides a distributor and a hydrochloric acid refining device having the same, so as to solve the problem that the porous tube filter cartridge of the existing hydrochloric acid refining adsorption equipment in the prior art is too close to the upper surface of the quartz sand, which easily causes the adsorption filler to leak out. The distributor provided by the present invention forms a dense structure of the filter layer by laying a filter layer between the porous plate and the adsorption filler, thereby preventing the adsorption filler from leaking out of the porous plate and ensuring the excellent water distribution effect of the distributor; by covering the installation port of the shell with a porous plate, the upper surface of the porous plate is located at the bottom of the filter layer in the vertical direction, thereby preventing the adsorption filler from leaking through a short path during operation, and ensuring that a small amount of filter filler laid in the shell can form a sufficiently thick filter layer, without lengthening the cylinder of the distributor, which is conducive to reducing the filling amount of the filter filler while ensuring normal operation.

[0005] In a first aspect, the present invention provides a distributor, comprising:

[0006] The shell has a mounting opening at the bottom; the inner peripheral wall of the shell forms a receiving cavity, and the end of the receiving cavity away from the mounting opening in the vertical direction is suitable for accommodating the adsorption filler;

[0007] A filter layer is built into the accommodating cavity at one end close to the installation opening in the vertical direction, and the filter layer is suitable for preventing the adsorbed filler from flowing out of the installation opening;

[0008] The porous plate is covered at the installation opening, and a plurality of through holes are opened on the porous plate. The aperture of the through holes is smaller than the particle diameter of the filter layer. The porous plate is suitable for isolating the filter layer in the accommodating cavity.

[0009] By laying a filter layer between the porous plate and the adsorption filler, the filter layer forms a dense structure, thereby preventing the adsorption filler from leaking out of the porous plate and ensuring the excellent water distribution effect of the distributor; by covering the installation port of the shell with a porous plate, the upper surface of the porous plate is located at the bottom of the filter layer in the vertical direction, thereby preventing the adsorption filler from leaking through a short path during operation and ensuring that a small amount of filter filler laid in the shell can form a sufficiently thick filter layer, without lengthening the cylinder of the distributor, which is beneficial to reducing the filling amount of the filter filler while ensuring normal operation.

[0010] In an optional embodiment, the porous plate is a dome structure, and the dome direction of the porous plate faces the side close to the filter layer in the vertical direction.

[0011] By setting the porous plate as a dome structure, the dome direction of the porous plate is toward the side close to the filter layer in the vertical direction. On the one hand, the structural strength of the porous plate can be enhanced, which is conducive to carrying a thicker filter layer. On the other hand, by setting the porous plate as a dome structure, under the condition of the same cross-sectional area, the perforated area of ​​the porous plate is larger and the number of perforations is greater, which is conducive to increasing the flux of the equipment.

[0012] In an optional embodiment, the filter layer includes N layers of filter fillers, where N≥3.

[0013] The filter layer includes at least three layers of filter fillers, and the particle diameters of the three layers of filter fillers gradually decrease in the vertical direction away from the porous plate to ensure the density of the filter layer and prevent the adsorbed fillers from passing through the filter layer and leaking out of the porous plate.

[0014] In an optional embodiment, the first layer of filter filler is disposed on the upper portion of the porous plate and abuts against the porous plate, and the particle diameter of the first layer of filter filler is D1, and D1 satisfies D1≥2·φd, wherein φd is the aperture of the through hole.

[0015] The first layer of filter filler is adjacent to the porous plate, and the particle diameter D1 of the first layer of filter filler satisfies D1≥2·φd, thereby effectively preventing the filter filler from leaking out of the porous plate while ensuring the normal operation of the water distributor.

[0016] In an optional implementation, when N=3, D1 satisfies 16 mm≤D1≤32 mm;

[0017] The particle diameter of the second layer of filter filler is D2, and D2 satisfies 8mm≤D2≤16mm;

[0018] The particle diameter of the third layer of filter filler is D3, and D3 satisfies 4mm≤D3≤8mm.

[0019] By such an arrangement, the adsorption filler is intercepted and carried, ensuring that the adsorption filler has a higher adsorption effect and a smaller filtration resistance.

[0020] In an optional implementation, when N=4, D1 satisfies 16 mm≤D1≤32 mm;

[0021] The particle diameter of the second layer of filter filler is D2, and D2 satisfies 8mm≤D2≤16mm;

[0022] The particle diameter of the third layer of filter filler is D3, and D3 satisfies 4mm≤D3≤8mm;

[0023] The particle diameter of the fourth layer of filter filler is D4, and D4 satisfies 2mm≤D4≤4mm.

[0024] Through such an arrangement, it is possible to ensure that the adsorption filler has a smaller filtration resistance and effectively intercept the adsorption filler to prevent the adsorption filler from passing through the filtration layer and leaking out of the porous plate, thereby ensuring that the adsorption filler exerts a higher adsorption effect.

[0025] In an optional embodiment, the distributor further comprises a manhole cover, which is detachably connected to the shell, and the manhole cover is suitable for positioning and / or fixing the porous plate at the installation opening.

[0026] By setting the manhole cover, the porous plate can be positioned and / or fixed at the installation opening, and the porous plate can be fixed by pressing down the porous plate through the weight of the filter layer; the manhole cover and the shell are connected by disassembly, which is convenient for maintenance and replacement.

[0027] In an optional embodiment, a first limiting portion is provided at one end of the manhole cover close to the shell in the vertical direction, and the first limiting portion is provided on the inner peripheral wall of the manhole cover; a limiting groove corresponding to the first limiting portion is provided on the lower edge of the porous plate, and the first limiting portion is suitable for being engaged with the limiting groove;

[0028] The inner peripheral wall of the shell near the installation opening forms a second limiting portion, and the second limiting portion is suitable for abutting against the upper edge of the porous plate.

[0029] Such an arrangement can not only prevent the porous plate from shifting or deflecting at the installation opening, ensuring that the porous plate can completely cover the installation opening, but also facilitate rapid alignment of the manhole cover and the porous plate during assembly, thereby helping to improve assembly accuracy and efficiency.

[0030] In an optional embodiment, the inner peripheral wall of the manhole cover forms an inverted cone-shaped flow collecting structure, and the inverted cone-shaped flow collecting structure is suitable for collecting and converging the liquid flowing out through the through hole.

[0031] In a second aspect, the present invention further provides a hydrochloric acid refining device, comprising: a hydrochloric acid refining device body, and the distributor as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0033] Figure 1 It is a working principle diagram of the adsorption equipment in the background technology distributing water through a porous tube filter cartridge;

[0034] Figure 2 A schematic diagram of a partial cross-sectional structure of a distributor according to an embodiment of the present invention;

[0035] Figure 3 A schematic diagram of a partial cross-sectional structure of another distributor according to an embodiment of the present invention;

[0036] Figure 4 for Figure 2 Enlarged view of the middle Q;

[0037] Figure 5 for Figure 4 Enlarged view of T in the middle.

[0038] Description of reference numerals:

[0039] 10. housing; 11. mounting opening; 12. second limiting portion;

[0040] 20. Adsorption filler;

[0041] 30. Filter layer; 31. Filter filler;

[0042] 40. porous plate; 41. through hole; 42. limiting groove;

[0043] 50. Manhole cover; 51. First limiting portion; 52. Inverted cone-shaped current collecting structure. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0045] Combine the following Figures 2 to 5 , describing an embodiment of the present invention.

[0046] According to an embodiment of the present invention, on the one hand, a distributor is provided, comprising:

[0047] The housing 10 has a mounting opening 11 at the bottom thereof; the inner peripheral wall of the housing 10 encloses a receiving cavity, and an end of the receiving cavity away from the mounting opening 11 in the vertical direction is suitable for accommodating an adsorption filler 20;

[0048] The filter layer 30 is built into the accommodating cavity at one end close to the installation opening 11 in the vertical direction, and the filter layer 30 is suitable for preventing the adsorbent filler 20 from flowing out of the installation opening 11;

[0049] The porous plate 40 is made of PTFE material and covers the mounting opening 11. The porous plate 40 is provided with a plurality of through holes 41. The aperture of the through holes 41 is smaller than the particle diameter of the filter layer 30. The porous plate 40 is suitable for isolating the filter layer 30 in the accommodating cavity.

[0050] It should be noted that in the process of treating organic matter in the hydrochloric acid refining industry, the temperature is high and there is a phenomenon of temperature change, switching from room temperature to 150 degrees. Hydrochloric acid is highly corrosive, so only enameled equipment can be used as the equipment cylinder. Enameled kettles are very cost-effective in the anti-corrosion industry, but it cannot set supporting hangers on the inner wall of the cylinder, which makes many forms of water distributors unable to be well fixed; if metal equipment is used to meet high temperature and strong corrosion conditions, more expensive Hastelloy B is required, and Hastelloy B also corrodes slowly at high temperatures. Therefore, the porous plate 40 made of PTFE is not only simple in structure, but also resistant to high temperature and corrosion, and has high working reliability.

[0051] It should be noted that, in this embodiment, the particle diameter of the adsorption filler 20 is D0, D0 satisfies 0.3mm≤D0≤1.5mm, and the adsorption filler 20 can be made of adsorption resin. The filter layer 30 can be made of quartz sand or pebbles, and the particle diameter of the filter layer 30 is larger than the particle diameter of the adsorption filler 20. The porous plate 40 can be made of PTFE sheet, which has higher strength under the same thickness compared with the porous tube filter cartridge structure before improvement, and the hole diameter of the perforation is larger, and the throughput that can be processed is larger, which can better meet the process requirements.

[0052] The distributor provided in this embodiment forms a dense structure of the filter layer 30 by laying a filter layer 30 between the porous plate 40 and the adsorption filler 20, thereby preventing the adsorption filler 20 from leaking out of the porous plate 40 and ensuring the excellent water distribution effect of the distributor; the porous plate 40 is covered at the installation port 11 of the shell 10, so that the upper surface of the porous plate 40 is located at the bottom of the filter layer 30 in the vertical direction, thereby preventing the adsorption filler 20 from leaking through a short path during operation, and ensuring that a small amount of filter filler laid in the shell 10 can form a sufficiently thick filter layer 30, without lengthening the cylinder of the distributor, which is beneficial to reducing the filling amount of the filter filler while ensuring normal operation, and is beneficial to reducing costs.

[0053] In one embodiment, the porous plate 40 is a dome structure, and the dome direction of the porous plate 40 faces the side close to the filter layer 30 in the vertical direction.

[0054] Please note that, see Figure 3 As shown, in this embodiment, by setting the porous plate 40 as a dome structure, the dome direction of the porous plate 40 is toward the side close to the filter layer 30 in the vertical direction. On the one hand, the structural strength of the porous plate 40 can be enhanced, which is beneficial for carrying a thicker filter layer 30. On the other hand, by setting the porous plate 40 as a dome structure, under the condition of the same cross-sectional area, the perforated area of ​​the porous plate 40 is larger and the number of perforations is more, which is beneficial for increasing the flux of the equipment.

[0055] In one embodiment, the filter layer 30 includes N layers of filter fillers 31 , where N≥3.

[0056] It should be noted that the filter layer 30 includes at least three layers of filter fillers 31, and the particle diameters of the three layers of filter fillers 31 gradually decrease in the vertical direction away from the porous plate 40 to ensure the density of the filter layer 30 and prevent the adsorption filler 20 from passing through the filter layer 30 and leaking out of the porous plate 40.

[0057] In one embodiment, the first layer of filter filler 31 is disposed on the upper portion of the porous plate 40 and abuts against the porous plate 40 , and the particle diameter of the first layer of filter filler 31 is D1 , and D1 satisfies D1 ≥ 2·φd, where φd is the aperture of the through hole 41 .

[0058] It should be noted that the first layer of filter filler 31 is adjacent to the porous plate 40, and the particle diameter D1 of the first layer of filter filler 31 satisfies D1≥2·φd, where φd is Figure 4 The pore size of the through hole 41 shown can effectively prevent the filter filler 31 from leaking out of the porous plate 40 while ensuring the normal operation of the water distributor.

[0059] In one embodiment, when N=3, D1 satisfies 16 mm ≤ D1 ≤ 32 mm;

[0060] The particle diameter of the second layer of filter filler 31 is D2, and D2 satisfies 8mm≤D2≤16mm;

[0061] The particle diameter of the third layer of filter filler 31 is D3, and D3 satisfies 4mm≤D3≤8mm.

[0062] Please note that, see Figure 2 As shown, when N=3, the particle diameter D1 of the first layer of filter filler 31 has a value range of 16mm≤D1≤32mm, the particle diameter D2 of the second layer of filter filler 31 has a value range of 8mm≤D2≤16mm, and the particle diameter D3 of the third layer of filter filler 31 has a value range of 4mm≤D3≤8mm, thereby intercepting and carrying the adsorption filler 20, ensuring that the adsorption filler 20 has a higher adsorption effect and a smaller filtration resistance.

[0063] In one embodiment, when N=4, D1 satisfies 16 mm ≤ D1 ≤ 32 mm;

[0064] The particle diameter of the second layer of filter filler 31 is D2, and D2 satisfies 8mm≤D2≤16mm;

[0065] The particle diameter of the third layer of filter filler 31 is D3, and D3 satisfies 4mm≤D3≤8mm;

[0066] The particle diameter of the fourth layer of filter filler 31 is D4, and D4 satisfies 2mm≤D4≤4mm.

[0067] Please note that, see Figure 3As shown, when N=4, the particle diameter D1 of the first layer of filter filler 31 has a value range of 16mm≤D1≤32mm, the particle diameter D2 of the second layer of filter filler 31 has a value range of 8mm≤D2≤16mm, the particle diameter D3 of the third layer of filter filler 31 has a value range of 4mm≤D3≤8mm, and the particle diameter D4 of the fourth layer of filter filler 31 has a value range of 2mm≤D4≤4mm, which can ensure a smaller filtration resistance of the adsorption filler 20 and effectively intercept the adsorption filler 20 to prevent the adsorption filler 20 from passing through the filter layer 30 and leaking out of the porous plate 40, thereby ensuring that the adsorption filler 20 has a higher adsorption effect.

[0068] In one embodiment, the distributor further includes a manhole cover 50 , which is detachably connected to the housing 10 , and the manhole cover 50 is suitable for positioning and / or fixing the porous plate 40 at the installation opening 11 .

[0069] It should be noted that the manhole cover 50 and the shell 10 can be fastened by a special glass-lined clip, the manhole cover 50 and the shell 10 can also be connected in the form of a flange and fasteners, or the manhole cover 50 and the shell 10 can also be connected in the form of a hinge.

[0070] In this embodiment, see Figure 4 As shown, by setting a manhole cover 50, the porous plate 40 is positioned and / or fixed at the installation port 11. Specifically, the diameter of the porous plate 40 can be 2 mm to 5 mm smaller than the inner diameter of the manhole cover 50, so as to facilitate the installation and positioning of the porous plate 40. The porous plate 40 can be fixed by pressing down the porous plate 40 by the weight of the filter layer 30; the manhole cover 50 and the shell 10 are connected by disassembly, so as to facilitate maintenance and replacement.

[0071] In one embodiment, a first limiting portion 51 is provided at one end of the manhole cover 50 close to the housing 10 in the vertical direction, and the first limiting portion 51 is provided on the inner peripheral wall of the manhole cover 50; a limiting groove 42 corresponding to the first limiting portion 51 is provided on the lower edge of the porous plate 40, and the first limiting portion 51 is suitable for being engaged with the limiting groove 42;

[0072] A second limiting portion 12 is formed on the inner peripheral wall of the housing 10 near the mounting opening 11 . The second limiting portion 12 is suitable for abutting against the upper edge of the porous plate 40 .

[0073] Please note that, see Figure 4 and Figure 5As shown, by setting a first limiting portion 51 at one end of the manhole cover 50 close to the shell 10 in the vertical direction, the first limiting portion 51 is engaged with the limiting groove 42 to axially limit the lower edge of the porous plate 40 and the second limiting portion 12 is abutted against the upper edge of the porous plate 40 to radially limit the upper edge of the porous plate 40, which can not only avoid the displacement or deflection of the porous plate 40 at the installation port 11 and ensure that the porous plate 40 can completely cover the installation port 11, but also facilitate the rapid alignment of the manhole cover 50 and the porous plate 40 during the assembly process, which is beneficial to improving the assembly accuracy and assembly efficiency.

[0074] In one embodiment, see Figure 4 As shown, the inner peripheral wall of the manhole cover 50 encloses an inverted cone-shaped flow collecting structure 52 , and the inverted cone-shaped flow collecting structure 52 is suitable for collecting and converging the liquid flowing out through the through hole 41 .

[0075] According to an embodiment of the present invention, on the other hand, a hydrochloric acid refining device is provided, comprising: a hydrochloric acid refining device body, and the distributor as described above.

[0076] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A distributor, characterized in that: include: A shell (10) is provided with a mounting opening (11) at the bottom thereof; the inner peripheral wall of the shell (10) encloses a receiving cavity, and an end of the receiving cavity away from the mounting opening (11) in a vertical direction is suitable for receiving an adsorption filler (20); a filter layer (30) built into the accommodating cavity at one end close to the installation opening (11) in the vertical direction, the filter layer (30) being suitable for preventing the adsorption filler (20) from flowing out of the installation opening (11); A porous plate (40) is disposed on the mounting opening (11), and a plurality of through holes (41) are formed on the porous plate (40). The aperture of the through holes (41) is smaller than the particle diameter of the filter layer (30). The porous plate (40) is suitable for isolating the filter layer (30) in the accommodating cavity.

2. The distributor according to claim 1, characterized in that The porous plate (40) is a dome structure, and the dome direction of the porous plate (40) faces the side close to the filter layer (30) in the vertical direction.

3. The distributor according to claim 1, characterized in that The filter layer (30) comprises N layers of filter fillers (31), wherein N≥3.

4. The distributor according to claim 3, characterized in that The first layer of the filter filler (31) is arranged on the upper part of the porous plate (40) and abuts against the porous plate (40), and the particle diameter of the first layer of the filter filler (31) is D1, and D1 satisfies D1≥2·φd, wherein φd is the pore size of the through hole (41).

5. The distributor according to claim 4, characterized in that When N=3, D1 satisfies 16mm≤D1≤32mm; The particle diameter of the second layer of the filter filler (31) is D2, and D2 satisfies 8mm≤D2≤16mm; The particle diameter of the third layer of the filtering filler (31) is D3, and D3 satisfies 4mm≤D3≤8mm.

6. The distributor according to claim 4, characterized in that When N=4, D1 satisfies 16mm≤D1≤32mm; The particle diameter of the second layer of the filter filler (31) is D2, and D2 satisfies 8mm≤D2≤16mm; The particle diameter of the third layer of the filter filler (31) is D3, and D3 satisfies 4mm≤D3≤8mm; The particle diameter of the fourth layer of the filter filler (31) is D4, and D4 satisfies 2mm≤D4≤4mm.

7. The distributor according to any one of claims 1 to 6, characterized in that: The distributor further comprises a manhole cover (50), the manhole cover (50) being detachably connected to the housing (10), and the manhole cover (50) being suitable for positioning and / or fixing the porous plate (40) at the installation opening (11).

8. The distributor according to claim 7, characterized in that A first limiting portion (51) is provided at one end of the manhole cover (50) close to the housing (10) in the vertical direction, and the first limiting portion (51) is provided on the inner peripheral wall of the manhole cover (50); a limiting groove (42) corresponding to the first limiting portion (51) is provided on the lower edge of the porous plate (40), and the first limiting portion (51) is suitable for being engaged with the limiting groove (42); The inner peripheral wall of the shell (10) near the mounting opening (11) forms a second limiting portion (12), and the second limiting portion (12) is suitable for abutting against the upper edge of the porous plate (40).

9. The distributor according to claim 7, characterized in that The inner peripheral wall of the manhole cover (50) encloses an inverted cone-shaped flow collecting structure (52), and the inverted cone-shaped flow collecting structure (52) is suitable for collecting and converging liquid flowing out through the through hole (41).

10. A hydrochloric acid refining device, characterized in that: include: A hydrochloric acid refining equipment body, and a distributor as claimed in any one of claims 1 to 9.

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