Filter screen of petroleum and petrochemical waste liquid filtering and separating device

Abstract

The invention discloses a filter screen of a petroleum and petrochemical waste liquid filtering and separating device, and relates to the technical field of filter screens, the filter screen comprises a waste liquid standing box, a plurality of filter screen bodies are arranged on the front side of the waste liquid standing box, a fixing ring is fixedly arranged on one side of the bottom of each filter screen body, and an inserting strip is rotatably arranged in each fixing ring; a mounting ring is inserted into the other end of the insertion strip and is fixedly mounted on the outer surface of the waste liquid standing box; by slowly rotating the fixing ring, the part, provided with threads, of one end of the fixing ring is slowly screwed out of the interior of the fixing ring, then the insertion strip is drawn to pull the other end of the insertion strip out of the interior of the mounting ring, then the fastening bolt is drawn out of the interior of the fixing plate, and the filter screen body is drawn upwards; according to the detachable filter screen, one filter screen body can be detached, other filter screen bodies can be detached in the same mode, any filter screen body can be detached, and meanwhile the detaching process is simplified.

Description

Technical Field

[0001] The invention relates to the technical field of filter screens, in particular to a filter screen for a petroleum and petrochemical waste liquid filtering and separation device. Background Art

[0002] Oil pollution is one of the most harmful pollution to the environment. The petroleum and petrochemical wastewater generated in the modern industrial production process contains a large amount of residual oil or oil-derived organic matter. If it is discharged directly, it will pollute the soil and water sources, cause serious damage to the environment, and is difficult to clean up. Therefore, how to treat petroleum and petrochemical wastewater is an important indicator of modern industry in terms of environmental protection.

[0003] Since petroleum and petrochemical wastewater has a complex composition, it contains not only crude oil and refined oil, but also a certain amount of corrosive components such as hydrogen sulfide, ammonia, nitrogen, phenol, cyanide, etc. Therefore, when filtering petroleum and petrochemical wastewater, the filter is easily blocked and needs to be replaced regularly.

[0004] Therefore, we designed a filter screen for petroleum and petrochemical waste liquid filtration and separation device to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a filter screen for a petroleum and petrochemical waste liquid filtering and separation device to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the present invention provides a filter of a petroleum and petrochemical waste liquid filtering and separation device, including a waste liquid still box, a plurality of filter bodies are arranged on the front side of the waste liquid still box, a fixing ring is fixedly arranged on one side of the bottom of the filter body, an insertion strip is rotatably arranged inside the fixing ring, the other end of the insertion strip is plugged with a mounting ring, the mounting ring is fixedly installed on the outer surface of the waste liquid still box, a fixing plate is slidably plugged with the bottom of the filter body, a fastening bolt is plugged into the inside of the fixing plate, and the other end of the fastening bolt is plugged into the inside of the waste liquid still box.

[0007] Furthermore, slide bars are fixedly provided on both sides of one of the filter bodies, and the slide bar is plugged into one end of the filter body on both sides.

[0008] Furthermore, a baffle is slidably provided inside the waste liquid still box.

[0009] Furthermore, plug rings are fixedly provided at both ends of the top of the waste liquid static box, and a latch is inserted inside the plug ring.

[0010] Furthermore, a plurality of insertion holes are provided on both sides of the baffle, and the other end of the plug is inserted into the inside of the insertion hole.

[0011] Furthermore, one end of the insert is provided with a thread, and the thread is threadedly connected in the fixing ring.

[0012] Furthermore, a compression spring is fixedly arranged on the inner wall surface of the mounting ring, and the other end of the compression spring abuts against the other end of the insertion strip.

[0013] Furthermore, a limit block is fixedly arranged on the surface of the insert.

[0014] Compared with the prior art, the beneficial effect of the present invention is: by slowly rotating the fixing ring, the threaded portion at one end of the fixing ring is slowly screwed out of the interior of the fixing ring, and then the insertion rod is pulled so that the other end of the insertion rod is pulled out from the interior of the mounting ring, and then the fastening bolt is pulled out from the interior of the fixing plate, and the filter body is pulled upward, one of the filter bodies can be disassembled, and the other filter bodies can be removed in the same way. Not only can any filter body be disassembled, but the disassembly process is also simplified.

[0015] Compared with the prior art, the beneficial effect of the present invention is as follows: by manually pulling the baffle up to a suitable height, and then passing the pins on both sides of the top of the waste liquid static box through the plug ring and plugging them into the plug hole, the baffle is fixed. In order to obtain the required waste liquid outflow volume, the amount of waste liquid passing through the filter body will be changed by pulling the baffle up to different heights. When the leaked filter body is less, the amount of waste liquid passing through the filter body is less, so the rate is also slower, and the filtration efficiency is correspondingly higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the external structure of the present invention; Figure 2 It is a rear view structural schematic diagram of the present invention; Figure 3 This is a schematic diagram of the connection structure of the filter body of the present invention; Figure 4 This is a schematic diagram of the structure of the cuttings of the present invention; Figure 5 For the present invention Figure 1 The enlarged structural diagram at A in the middle; Figure 6 For the present invention Figure 2 Enlarged structural diagram at B in the middle.

[0017] In the figure: 1. Waste liquid standing box; 2. Filter body; 3. Fixing ring; 4. Insert strip; 5. Mounting ring; 6. Fixing plate; 7. Fastening bolt; 8. Slide strip; 9. Baffle; 10. Insert ring; 11. Pin; 12. Socket; 13. Thread; 14. Compression spring; 15. Limit block. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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 ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] See also Figure 1-6 The present invention provides a technical solution: a filter screen of a petroleum and petrochemical waste liquid filtering and separation device, comprising a waste liquid static box 1, a plurality of filter screen bodies 2 are arranged on the front side of the waste liquid static box 1, a fixing ring 3 is fixedly arranged on one side of the bottom of the filter screen body 2, a plugging strip 4 is rotatably arranged inside the fixing ring 3, a mounting ring 5 is inserted at the other end of the plugging strip 4, the mounting ring 5 is fixedly installed on the outer surface of the waste liquid static box 1, a fixing plate 6 is slidably inserted at the bottom of the filter screen body 2, a fastening bolt 7 is inserted inside the fixing plate 6, the other end of the fastening bolt 7 is inserted into the interior of the waste liquid static box 1, a sliding strip 8 is fixedly arranged on both sides of one filter screen body 2, the sliding strip 8 is inserted at one end of the filter screen body 2 on both sides thereof, a thread 13 is arranged at one end of the plugging strip 4, the thread 13 is fixedly connected to the surface of the fixing ring 3, a compression spring 14 is fixedly arranged on the inner wall surface of the mounting ring 5, the other end of the compression spring 14 is against the other end of the plugging strip 4, and a limiting block 15 is fixedly arranged on the surface of the plugging strip 4.

[0022] In specific implementation, after a certain period of filtration, since the petrochemical oil waste liquid contains a certain amount of corrosive components such as hydrogen sulfide, ammonia, nitrogen, phenol, cyanide, etc., the filter body 2 needs to be regularly maintained and replaced. When disassembling the filter body 2, first slowly rotate the fixing ring 3 so that the part with the thread 13 at one end of the fixing ring 3 is slowly screwed out of the fixing ring 3, and then pull the insert 4 so that the other end of the insert 4 is pulled out from the inside of the mounting ring 5, and then the fastening bolt 7 is pulled out from the inside of the fixing plate 6, and the filter body 2 is pulled upward, so that one of the filter bodies 2 can be disassembled, and the other filter bodies 2 can be removed in the same way.

[0023] When the filter body 2 is disassembled and one end of the insertion strip 4 is taken out from the inside of the mounting ring 5, since the clamping spring 14 is in a compressed state, when the end of the insertion strip 4 provided with the thread 13 is detached from the inside of the fixing ring 3, the clamping spring 14 will give the insertion strip 4 a force toward the outside of the clamping spring 14, and the insertion strip 4 will automatically pop open under the action of this elastic force. Therefore, a limiting block 15 is fixedly provided on the surface of the insertion strip 4. When the insertion strip 4 pops open, one side surface of the limiting block 15 will hit one side of the fixing ring 3, thereby preventing the insertion strip 4 from falling to the ground under the action of the clamping spring 14.

[0024] It should be noted that here, sliding bars 8 are fixedly set at both ends of one of the filter bodies 2, while sliding grooves are opened at both ends of the filter bodies 2 on the adjacent two sides. The cross-setting is to better separate the two connected filter bodies 2. If sliding bars 8 are set on one side of the two sides of the filter body 2 and sliding grooves are set on the other side, in order to prevent the filter body 2 from falling under the action of its own weight during the installation process, the sliding groove is set here and is placed inside one side of the filter body 2 and does not run through the entire filter body 2. Therefore, when one side of the filter body 2 is set as a sliding bar 8 and the other side is set as a sliding groove, it will hinder the separation of the connected filter bodies 2.

[0025] It should be noted that the thread 13 and the compression spring 14 are provided here to enable the insertion strip 4 to better connect the filter body 2 to the surface of the waste liquid still box 1. The provision of the thread 13 facilitates the installation process. One end of the insertion strip 4 can be inserted into the interior of the mounting ring 5 by rotation. The provision of the compression spring 14 is to facilitate the disassembly process. During disassembly, when the thread 13 is unscrewed from the interior of the fixing ring 3, the insertion strip 4 will be bounced open under the action of the compression spring 14. At the same time, the provision of the compression spring 14, when the compression spring 14 is compressed at the other end of the insertion strip 4, the friction of the compression spring 14 on the inner wall of the mounting ring 5 will also increase, thereby better connecting the filter body 2 to the waste liquid still box 1.

[0026] It should be noted that the limiting block 15 is provided here to prevent the inserting strip 4 from falling from the inside of the fixing ring 3 during disassembly.

[0027] It should be noted that the components of petrochemical petroleum waste liquid mainly include crude oil, refined oil, etc., and a small amount of organic solvents and catalysts. The oil exists in the form of floating oil and dispersed oil. It contains hydrogen sulfide, ammonia, nitrogen, phenol, cyanide, etc., has a foul odor, is corrosive to equipment, contains free caustic soda, petroleum and a small amount of phenol and sulfur, has a high pH value, inhibits the growth of microorganisms, has a high salt content, a large oil content, is severely emulsified, and is difficult to handle. It comes from multiple devices. The wastewater discharged from the catalytic cracking unit contains high phenol content and is very harmful.

[0028] Therefore, it is necessary to separate petrochemical oil waste liquid. The benefits are: 1. Prevent environmental pollution. Petrochemical oil waste liquid contains pollutants such as oil, sulfur, and heavy metals. Direct discharge will seriously pollute water and soil and destroy the ecological balance. Separation treatment can effectively remove these harmful substances and reduce environmental risks; 2. Improve resource utilization: Through separation, resources such as oil and water in waste liquid can be recovered. Water can be reused after treatment, and oil can be further processed or reused to improve resource utilization efficiency; 3. Avoid equipment damage. Grease is easily deposited on pipes and equipment, causing blockage and corrosion. Separation can reduce these hazards, extend the service life of equipment, and reduce maintenance costs; 4. Ensure production safety. Some components in waste liquid, such as cyanide and sulfide, are toxic. Separation treatment can reduce the threat of these substances to personnel and production safety.

[0029] Therefore, it is necessary to use the filter body 2 to filter and separate the petrochemical oil waste liquid. The advantages are: 1. Effectively separate impurities. The filter body 2 can accurately filter solid particles, suspended matter and other impurities in the waste liquid to improve the purity of the waste liquid; 2. Protect subsequent equipment: By removing impurities in the waste liquid, the filter body 2 can reduce the wear and corrosion of these substances on subsequent processing equipment and extend the service life of the equipment; 3. Improve processing efficiency. Pre-filtration treatment can reduce the burden of subsequent processing technology and improve the overall waste liquid treatment efficiency.

[0030] It should be noted that the use of thread 13 in conjunction with compression spring 14 can not only increase the tightening force of the connection, but also the compression spring 14 is flattened after the bolt is rotated, generating a rebound force to fill the gap between the bolt and the working panel and enhance the tightening effect. It can also prevent loosening. The compression spring 14 is used in conjunction with a spring washer. After the spring washer is flattened, the continuously generated elastic force keeps the fixing ring 3 and one end of the insertion strip 4 in friction, generating a resistance torque, effectively preventing the insertion strip 4 from loosening, and also playing a role in alleviating impact. The compression spring 14 has a large elastic deformation capacity, which can absorb vibration and impact during the use of mechanical equipment, reduce the loosening of the insertion strip 4, and improve stability.

[0031] See also Figure 1-6 As shown, a baffle 9 is slidably provided inside the waste liquid still box 1, plug rings 10 are fixedly provided at both ends of the top of the waste liquid still box 1, a plug pin 11 is inserted into the plug ring 10, and a plurality of plug holes 12 are opened on both sides of the baffle 9, and the other end of the plug pin 11 is inserted into the inside of the plug hole 12.

[0032] In specific implementation, when filtering and separating petroleum petrochemicals, firstly, the petrochemical waste liquid is placed inside the waste liquid standing tank 1 and left to stand for a period of time to separate the impurities of the petrochemicals, and the solid impurities are precipitated at the bottom, while the liquid impurities will be in the upper layer.

[0033] Then manually pull up the baffle 9 to a suitable height, and then pass the pins 11 on both sides of the top of the waste liquid static box 1 through the plug ring 10 and insert them into the plug hole 12 to fix the baffle 9. In order to obtain the required waste liquid outflow, the amount of waste liquid passing through the filter body 2 will be changed by pulling up the baffle 9 to different heights. When the leaked filter body 2 is less, the amount of waste liquid passing through the filter body 2 is less, so the rate is also slower, and the filtration efficiency is correspondingly higher.

[0034] In the process of lifting the baffle plate 9 upward, the staff is required to manually lift the baffle plate 9 upward, and then insert the latch 11 into the socket 12 at a suitable position.

[0035] It should be noted that in order to facilitate lifting the baffle 9 upward, threaded screws can be fixed on both sides of the baffle 9, and the motor drives the threaded screws to rotate so that the baffle 9 moves upward, which can further control the rising distance of the baffle 9.

[0036] It should be noted that in order to make the rising of the baffle 9 more stable, slide grooves are opened on both sides of the waste liquid still box 1, and the two ends of the baffle 9 are placed inside the slide grooves, and at the same time, the two side surfaces of the baffle 9 are made in contact with the surfaces of the slide grooves. In this way, during the rising process of the baffle 9, the uneven force on the two ends of the baffle 9 and the tilting are avoided.

[0037] Working principle: When filtering and separating petroleum and petrochemical products, first place the petrochemical waste liquid inside the waste liquid standing tank 1 and let it stand for a period of time to separate the impurities of the petrochemical products. The solid impurities will settle at the bottom, while the liquid impurities will be in the upper layer.

[0038] Then manually pull up the baffle 9 to a suitable height, and then pass the pins 11 on both sides of the top of the waste liquid static box 1 through the plug ring 10 and insert them into the plug hole 12 to fix the baffle 9. In order to obtain the required waste liquid outflow, the amount of waste liquid passing through the filter body 2 will be changed by pulling up the baffle 9 to different heights. When the leaked filter body 2 is less, the amount of waste liquid passing through the filter body 2 is less, so the rate is also slower, and the filtration efficiency is correspondingly higher.

[0039] After filtering for a certain period of time, since the petrochemical waste liquid contains a certain amount of corrosive components such as hydrogen sulfide, ammonia, nitrogen, phenol, cyanide, etc., the filter body 2 needs to be regularly maintained and replaced. When disassembling the filter body 2, first slowly rotate the fixing ring 3 so that the part with the thread 13 at one end of the fixing ring 3 is slowly screwed out of the fixing ring 3, then pull the insert 4 so that the other end of the insert 4 is pulled out from the inside of the mounting ring 5, then pull the fastening bolt 7 out of the inside of the fixing plate 6, and pull the filter body 2 upward, so that one of the filter bodies 2 can be disassembled, and the other filter bodies 2 can be removed in the same way.

[0040] When the filter body 2 is disassembled and one end of the insertion strip 4 is taken out from the inside of the mounting ring 5, since the clamping spring 14 is in a compressed state, when the end of the insertion strip 4 provided with the thread 13 is detached from the inside of the fixing ring 3, the clamping spring 14 will give the insertion strip 4 a force toward the outside of the clamping spring 14, and the insertion strip 4 will automatically pop open under the action of this elastic force. Therefore, a limiting block 15 is fixedly provided on the surface of the insertion strip 4. When the insertion strip 4 pops open, one side surface of the limiting block 15 will hit one side of the fixing ring 3, thereby preventing the insertion strip 4 from falling to the ground under the action of the clamping spring 14.

[0041] In the process of lifting the baffle 9 upward, the staff needs to manually lift the baffle 9 upward, and then insert the pin 11 into the socket 12 at the appropriate position. The material of the baffle 9 here can be stainless steel. Stainless steel contains a large amount of chromium, which can form a dense chromium oxide protective film, effectively isolating corrosive media, such as sulfur and acid in petrochemical waste liquid, greatly extending the service life of the equipment. Stainless steel has a high melting point and thermal stability, and can operate stably for a long time in a high temperature environment, such as crude oil heating and cracking processes, to ensure efficient heat transfer. Stainless steel has high strength and can withstand high pressure in the refining process, ensuring the integrity of the equipment structure and avoiding dangerous situations such as leakage. Stainless steel has a smooth surface, is not easy to adhere to dirt, is easy to clean and maintain, keeps the equipment hygienic, and meets oil quality standards.

[0042] The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present invention has been disclosed as above in preferred embodiments, it is not intended to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes using the technical contents suggested above without departing from the scope of the technical solution of the present invention. The implementation schemes in the above embodiments can also be further combined or replaced. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

Claims

1. A filter screen for a petroleum and petrochemical waste liquid filtering and separation device, comprising a waste liquid standing box (1), characterized in that: A plurality of filter bodies (2) are arranged at the front side of the waste liquid still box (1); a fixing ring (3) is fixedly arranged on one side of the bottom of the filter body (2); an inserting strip (4) is rotatably arranged inside the fixing ring (3); a mounting ring (5) is inserted at the other end of the inserting strip (4); the mounting ring (5) is fixedly installed on the outer surface of the waste liquid still box (1); a fixing plate (6) is slidably inserted at the bottom of the filter body (2); a fastening bolt (7) is inserted inside the fixing plate (6); and the other end of the fastening bolt (7) is inserted into the interior of the waste liquid still box (1).

2. The filter screen of the petroleum and petrochemical waste liquid filtering and separation device according to claim 1, characterized in that: Slide bars (8) are fixedly provided on both sides of one of the filter bodies (2), and the slide bars (8) are plugged into one end of the filter bodies (2) on both sides.

3. The filter screen of the petroleum and petrochemical waste liquid filtering and separation device according to claim 1, characterized in that: A baffle (9) is slidably provided inside the waste liquid still box (1).

4. A filter screen for a petroleum and petrochemical waste liquid filtering and separation device as claimed in claim 3, characterized in that: Insert rings (10) are fixedly provided at both ends of the top of the waste liquid static box (1), and a latch pin (11) is inserted into the interior of the insert ring (10).

5. The filter screen of the petroleum and petrochemical waste liquid filtering and separation device as claimed in claim 4, characterized in that: A plurality of insertion holes (12) are provided on both sides of the baffle (9), and the other end of the latch (11) is inserted into the inside of the insertion hole (12).

6. The filter screen of the petroleum and petrochemical waste liquid filtering and separation device according to claim 1, characterized in that: One end of the insert (4) is provided with a thread (13), and the thread (13) is fixedly connected to the surface of the fixing ring (3).

7. The filter screen of the petroleum and petrochemical waste liquid filtering and separation device according to claim 1, characterized in that: A compression spring (14) is fixedly arranged on the inner wall surface of the mounting ring (5), and the other end of the compression spring (14) abuts against the other end of the insertion strip (4).

8. The filter screen of the petroleum and petrochemical waste liquid filtering and separation device according to claim 1, characterized in that: A limiting block (15) is fixedly provided on the surface of the insert strip (4).

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