A purification treatment device for petrochemical chemical waste liquid

Abstract

This invention belongs to the field of petrochemical wastewater treatment technology, specifically disclosing a purification and treatment device for petrochemical wastewater, including a treatment tank. An observation window is provided on one side of the outer wall of the treatment tank. A first mounting frame is fixedly connected to the top of the treatment tank, and a first motor is fixedly mounted on the top of the first mounting frame. A first rotating shaft is fixedly connected to the output end of the first motor, and the first rotating shaft is inserted into and rotatably connected to the interior of the treatment tank. A second rotating shaft is inserted into and rotatably connected to one side of the first mounting frame via a mounting plate. The double-plate insert rod periodically squeezes the squeezing cylinder, quantitatively dripping flocculant into the interior of the treatment tank, thereby stably supplying flocculant to the interior of the treatment tank. Simultaneously, the operator observes the clumping of the wastewater inside the treatment tank through the observation window and adjusts the protrusion length of the protrusions to modify the dripping dosage, achieving a reasonable clumping effect.

Description

Technical Field

[0001] This invention belongs to the field of petrochemical waste liquid treatment technology, and specifically relates to a purification and treatment device for petrochemical waste liquid. Background Technology

[0002] Petrochemical wastewater is mainly generated during the petroleum refining and chemical production process. During the oil refining process, crude oil undergoes a series of physical and chemical treatment steps such as fractionation, cracking, and reforming, which will generate wastewater containing pollutants such as oil, sulfur, phenol, cyanide, and COD. This wastewater comes from multiple stages such as oil-water separation, equipment cleaning, and condensate discharge. It is usually treated to be harmless through three stages: pretreatment, main treatment, and advanced treatment. Pretreatment mainly uses flocculants to form sediment in the wastewater to remove suspended solids and large particulate matter.

[0003] In the existing technology, considering that chemical waste liquid is usually harmful to the human body, in order to reduce the contact time with chemical waste liquid, operators will put chemical waste liquid and flocculant into the treatment equipment together. However, this makes it difficult for operators to control the amount of flocculant added. Excessive flocculant may cause particulate matter to aggregate excessively and form excessively large clumps. These clumps will exceed the processing capacity of the sedimentation equipment and will be detrimental to the treatment of waste liquid. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a purification and treatment device for petrochemical waste liquid.

[0005] To achieve the above objectives, the present invention provides a purification and treatment device for petrochemical waste liquid, including a treatment tank. An observation window is provided on one side of the outer wall of the treatment tank. A first mounting frame is fixedly connected to the top of the treatment tank. A first motor is fixedly mounted on the top of the first mounting frame. A first rotating shaft is fixedly connected to the output end of the first motor and inserted into and rotatably connected to the interior of the treatment tank. A second rotating shaft is inserted into and rotatably connected to one side of the first mounting frame via a mounting plate. A bevel gear set is provided between the second rotating shaft and the first rotating shaft. A cam is provided on the outer wall of the second rotating shaft. A second mounting frame is also fixedly connected to the top of the treatment tank. A double-plate insert rod is inserted into and rotatably connected to the top of the second mounting frame. A squeezing cylinder is provided on the inner side of the second mounting frame. A nozzle is fixedly connected to the bottom of the squeezing cylinder and fixedly connected to and inserted into the interior of the treatment tank. The squeezing cylinder is configured as an elastic structure.

[0006] In the above technical solution, the cam further includes a turntable fixedly connected to the outer wall of the second rotating shaft. The outer wall of the turntable has an extension groove. A protrusion is inserted into and slidably connected to the inside of the extension groove. A lever plate is fixedly connected to one side edge of the protrusion. The lever plate is slidably connected and extends to the outer side of the turntable. Elastic plates are fixedly connected to both sides of the outer wall of the lever plate. A pair of evenly distributed positioning grooves are opened on one side of the outer wall of the turntable. The positioning grooves cooperate with the elastic plates.

[0007] In the above technical solution, a connecting pipe is inserted into and fixedly connected to the outer wall of the extrusion cylinder, and a feeding hopper is fixedly connected to one side of the outer wall of the first mounting frame through a mounting plate, and the feeding hopper is connected to the connecting pipe.

[0008] In the above technical solution, the processing box is further provided with a partition component inside. The partition component consists of a pair of isolation components arranged vertically and facing each other. Each isolation component includes a rod inserted and rotatably connected to the four corners of the outer wall of the processing box. A sliding cylinder is sleeved on the outer wall of the rod. A threaded block and a second motor are respectively fixedly connected to both ends of one of the rods. The threaded block is screwed into the inside of the sliding cylinder. The second motor is fixedly installed on the outer wall of the processing box by a mounting bracket. A movable plate is fixedly connected to the outer wall of the sliding cylinder and is slidably connected to the inside of the processing box. Arc-shaped grooves are opened on both sides of the outer wall of the movable plate, and evenly distributed AC holes are opened on the outer wall of the arc-shaped grooves.

[0009] In the above technical solution, waterproof push rods are fixedly installed on both sides of the outer wall of the movable plate by mounting brackets. A sealing plate is fixedly connected to the output end of the waterproof push rod. A first liquid outlet pipe is inserted and fixedly connected to one side of the outer wall of the treatment box. A third liquid outlet pipe and a second liquid outlet pipe are inserted and fixedly connected from top to bottom on one side of the inner wall of the treatment box.

[0010] In the above technical solution, the interior of the processing box is further connected to a partition cylinder by a mounting bracket, and the movable plate is inserted and slidably connected to the outer wall of the partition cylinder. A spiral plate is fixedly connected to the outer wall of the first rotating rod, and a pair of perforated connecting rings are also fixedly connected to the outer wall of the double plate insert rod. The two perforated connecting rings are respectively located on the upper and lower sides of the partition cylinder. A cleaning brush is fixedly connected to the outer wall of the perforated connecting ring, and the cleaning brush is configured as a disc structure.

[0011] In the above technical solution, the outer walls of the partition cylinder are further provided with uniformly distributed liquid holes on both sides.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] During use, the double-plate inserter periodically squeezes the extrusion cylinder to drip a measured amount of flocculant into the treatment tank, ensuring a stable supply of flocculant. Simultaneously, the operator observes the clumping of the waste liquid inside the treatment tank through the observation window and adjusts the protrusion length of the protrusion to modify the dripping dosage for optimal clumping. During the process, the spiral plate drives the waste liquid from the bottom of the treatment tank to the top, accelerating the mixing efficiency of the flocculant and chemical waste liquid. Once the suspended particles and colloids in the waste liquid have fully flocculated and formed larger clumps, the waterproof push rod pushes the sealing plate to seal the exchange port. At the same time, the upper and lower adjustable plates separate the clumped layers on both sides. This layered extraction significantly reduces interference with other liquid layers and prevents the clumped particles from re-mixing into the waste liquid. After extraction, the cleaning brush cleans the contact surface between the arc-shaped groove and the clumped layers to prevent blockage by particles. Attached Figure Description

[0014] Figure 1 This is a first-view structural schematic diagram of a purification and treatment device for petrochemical chemical waste liquid proposed in this invention.

[0015] Figure 2 This is a second-view structural schematic diagram of a purification and treatment device for petrochemical chemical waste liquid proposed in this invention.

[0016] Figure 3 This is a schematic diagram of the internal structure of the treatment tank of a petrochemical chemical waste liquid purification and treatment equipment proposed in this invention.

[0017] Figure 4 This is a schematic diagram of the internal structure of the isolation cylinder of a petrochemical waste liquid purification and treatment device proposed in this invention.

[0018] Figure 5 This is a schematic diagram of the internal structure of the slide tube of a purification and treatment device for petrochemical chemical waste liquid proposed in this invention.

[0019] Figure 6 for Figure 2 Enlarged view of point A in the middle.

[0020] In the diagram: 1. Processing box; 2. Observation window; 3. First mounting frame; 4. First motor; 5. First rotating shaft; 6. Bevel gear set; 7. Second rotating shaft; 8. Turntable; 9. Double plate insert rod; 10. Extrusion cylinder; 11. Second mounting frame; 12. Feed hopper; 13. Connecting pipe; 14. Second motor; 15. First liquid outlet pipe; 16. Second liquid outlet pipe; 17. Third liquid outlet pipe; 18. Partition cylinder; 19. Liquid hole; 20. Insert rod; 21. Sliding cylinder; 22. Movable plate; 23. Arc groove; 24. Exchange port; 25. Waterproof push rod; 26. Sealing plate; 27. Spiral plate; 28. Perforated connecting ring; 29. ​​Cleaning brush; 30. Threaded block; 31. Protrusion; 32. Extending groove; 33. Rod-mounted lever plate; 34. Positioning groove; 35. Elastic sheet. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] like Figures 1-6 The illustrated equipment for purifying petrochemical waste liquid includes a treatment tank 1. An observation window 2 is provided on one side of the outer wall of the treatment tank 1, allowing observation of the interior to assist operators in assessing the clumping situation and determining whether flocculant needs to be added. A first mounting frame 3 is fixedly connected to the top of the treatment tank 1. A first motor 4 is fixedly mounted on the top of the first mounting frame 3. A first rotating shaft 5 is fixedly connected to the output end of the first motor 4 and is inserted into and rotatably connected to the interior of the treatment tank 1. A second rotating shaft 7 is inserted into and rotatably connected to one side of the first mounting frame 3 via a mounting plate. A bevel gear set 6 is provided between the second rotating shaft 7 and the first rotating shaft 5. A cam is provided on the outer wall of the second rotating shaft 7. A second mounting frame is also fixedly connected to the top of the treatment tank 1. 11. A double-plate insert rod 9 is inserted and rotatably connected to the top of the second mounting frame 11. An extrusion cylinder 10 is provided on the inner side of the second mounting frame 11. A nozzle is fixedly connected to the bottom of the extrusion cylinder 10, and the nozzle is fixedly connected and inserted into the interior of the treatment box 1. The extrusion cylinder 10 is designed as an elastic structure. Through the connection of the bevel gear set 6, it can drive the cam to rotate after the first motor 4 is started. The protruding part of the cam continuously contacts the double-plate insert rod 9 and presses the extrusion cylinder 10, thereby squeezing out the flocculant inside and dripping it into the interior of the treatment box 1. The shape of the extrusion cylinder 10 is restored and pushes the double-plate insert rod 9 upward to reset it. Through this design, the extrusion cylinder 10 can repeatedly drip flocculant into the interior of the treatment box 1 in a quantitative manner, which can facilitate the user to control the dosage and prevent the formation of excessive clumps.

[0023] The cam includes a turntable 8 fixedly connected to the outer wall of the second rotating shaft 7. The outer wall of the turntable 8 has an extension groove 32. A protrusion 31 is inserted into and slidably connected inside the extension groove 32. A lever plate 33 is fixedly connected to one side edge of the protrusion 31, and the lever plate 33 is slidably connected and extends to the outer side of the turntable 8. Elastic plates 35 are fixedly connected to both sides of the outer wall of the lever plate 33. A pair of evenly distributed positioning grooves 34 are opened on one side of the outer wall of the turntable 8, and the positioning grooves 34 cooperate with the elastic plates 35. By moving the elastic plates 35 on both sides, they can be disengaged from the interior of the positioning grooves 34, so that the protrusion 31 can be swung up and down to adjust its extension length. Through this design, the extension length of the protrusion 31 can be adjusted to adjust the pressure length on the extrusion cylinder 10, thereby controlling the extrusion dosage. At the same time, when the protrusion 31 is completely retracted into the extension groove 32, it can avoid squeezing the extrusion cylinder 10, and thus prevent flocculant from dripping into the processing box 1, making it easier for the staff to control the amount of flocculant dripped in.

[0024] A connecting pipe 13 is inserted into and fixedly connected to the outer wall of the extrusion cylinder 10. A feeding hopper 12 is fixedly connected to one side of the outer wall of the first mounting frame 3 through a mounting plate, and the feeding hopper 12 is connected to the connecting pipe 13. With this design, flocculant is added and replenished into the extrusion cylinder 10 through the feeding hopper 12. At the same time, when the feeding hopper 12 is closed, flocculant can be prevented from entering the interior of the treatment box 1 through the nozzle on the extrusion cylinder 10.

[0025] The processing box 1 is internally equipped with a partition assembly, consisting of a pair of vertically arranged and facing opposite directions. Each partition assembly includes four insert rods 20 inserted and rotatably connected to the four corners of the outer wall of the processing box 1. A sliding cylinder 21 is fitted onto the outer wall of each insert rod 20. Threaded blocks 30 and a second motor 14 are fixedly connected to both ends of one of the insert rods 20, respectively. The threaded blocks 30 are screwed into the inside of the sliding cylinder 21. The second motor 14 is fixedly mounted on the outer wall of the processing box 1 via a mounting bracket. A movable plate 22 is fixedly connected to the outer wall of the sliding cylinder 21, and the movable plate 22 is slidably connected to the processing box. Inside the box 1, arc-shaped grooves 23 are provided on both sides of the outer wall of the movable plate 22. The outer wall of the arc-shaped grooves 23 is provided with evenly distributed communication holes 24. The movable plate 22 can separate the agglomerated particles to prevent them from being remixed into the waste liquid when it is pumped. The second motor 14 drives the threaded block 30 to rotate, which in turn drives the sliding cylinder 21 to move up and down along the outside of the insertion rod 20, and then synchronously drives the movable plate 22 to slide up and down along the outer wall of the partition cylinder 18, thereby adjusting the up and down position of the movable plate 22, so as to adapt to and separate agglomerates of different thicknesses.

[0026] Waterproof push rods 25 are fixedly installed on both sides of the outer wall of the movable plate 22 by mounting brackets. The output end of the waterproof push rod 25 is fixedly connected to the sealing plate 26. A first liquid outlet pipe 15 is inserted and fixedly connected to one side of the outer wall of the treatment box 1. A third liquid outlet pipe 17 and a second liquid outlet pipe 16 are inserted and fixedly connected from top to bottom on one side of the inner wall of the treatment box 1. When the liquid inside the treatment box 1 is drawn away through the second liquid outlet pipe 16, the third liquid outlet pipe 17 and the first liquid outlet pipe 15 respectively, the waterproof push rod 25 drives the sealing plate 26 to stick to the movable plate 22 and form a blockage on the arc groove 23 to prevent the liquid from flowing through the exchange hole 24. At this time, when the layered extraction is performed, it can avoid affecting other layered chemical waste liquids.

[0027] Inside the treatment tank 1, a partition cylinder 18 is fixedly connected via a mounting bracket. A movable plate 22 is inserted and slidably connected to the outer wall of the partition cylinder 18. A spiral plate 27 is fixedly connected to the outer wall of the first rotating rod 5. A pair of perforated connecting rings 28 are also fixedly connected to the outer wall of the double-plate insert rod 9. The two perforated connecting rings 28 are located on the upper and lower sides of the partition cylinder 18, respectively. A cleaning brush 29 is fixedly connected to the outer wall of the perforated connecting ring 28. The cleaning brush 29 is designed as a disc structure. The first rotating shaft 5 drives the spiral plate 27 to rotate inside the partition cylinder 18, causing the liquid at the bottom to be drawn to the top, thereby improving the mixing effect of flocculant and chemical waste liquid. At the same time, the rotating cleaning brush 29 can also clean the arc-shaped groove 23 to prevent it from being blocked by particles.

[0028] The outer walls of the partition cylinder 18 are provided with evenly distributed liquid holes 19 on both sides. This design allows the interior of the partition cylinder 18 to communicate with the processing tank 1. When the liquid is extracted from the interior of the processing tank 1, the liquid filling the interior of the partition cylinder 18 will also be extracted.

[0029] Working principle:

[0030] During use, the double-plate insert rod 9 periodically squeezes the extrusion cylinder 10 to drip a quantitative amount of flocculant into the treatment tank 1, thus stably supplying flocculant into the treatment tank 1. At the same time, the operator observes the clumping of the waste liquid inside the treatment tank 1 through the observation window 2 and adjusts the extension length of the protrusion 31 to change the dripping dosage to achieve a reasonable clumping effect. During the process, the spiral plate 27 drives the waste liquid at the bottom of the treatment tank 1 to the top, thereby accelerating the mixing efficiency of the flocculant and the chemical waste liquid. When the suspended particles and colloids in the waste liquid are fully flocculated to form large clumps, the waterproof push rod 25 pushes the sealing plate 26 to seal the communication hole 24. At the same time, the up and down adjusting movable plate 22 separates the clumping layers on the upper and lower sides. At this time, when extracting the layers, the interference to other liquid layers can be greatly reduced, and the clumped particles are prevented from being remixed into the waste liquid. After extraction, the cleaning brush 29 can clean the contact surface between the arc groove 23 and the clumped layer to prevent it from being blocked by particles.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A purification and treatment device for petrochemical waste liquid, comprising a treatment tank (1), characterized in that, An observation window (2) is provided on one side of the outer wall of the processing box (1). A first mounting frame (3) is fixedly connected to the top of the processing box (1). A first motor (4) is fixedly installed on the top of the first mounting frame (3). A first rotating shaft (5) is fixedly connected to the output end of the first motor (4). The first rotating shaft (5) is inserted and rotatably connected to the inside of the processing box (1). A second rotating shaft (7) is inserted and rotatably connected to one side of the first mounting frame (3) through a mounting plate. A bevel gear set (6) is provided between the second rotating shaft (7) and the first rotating shaft (5). A cam is provided on the outer wall of the second rotating shaft (7). A second mounting frame (11) is also fixedly connected to the top of the processing box (1). A double plate insert rod (9) is inserted and rotatably connected to the top of the second mounting frame (11). An extrusion cylinder (10) is provided on the inner side of the second mounting frame (11). A nozzle is fixedly connected to the bottom of the extrusion cylinder (10). The nozzle is fixedly connected and inserted into the inside of the processing box (1). The extrusion cylinder (10) is set as an elastic structure. The processing box (1) is provided with a partition component inside. The partition component consists of a pair of isolation components arranged vertically and facing each other. The isolation component includes a rod (20) inserted and rotatably connected to the four corners of the outer wall of the processing box (1). The outer wall of the rod (20) is fitted with a sliding cylinder (21). The two ends of one of the rods (20) are respectively fixedly connected to a threaded block (30) and a second motor (14). The threaded block (30) is screwed into the inside of the sliding cylinder (21). The second motor (14) is fixedly installed on the outer wall of the processing box (1) by a mounting bracket. The outer wall of the sliding cylinder (21) is fixedly connected to a movable plate (22), and the movable plate (22) is slidably connected to the inside of the processing box (1). The outer walls of the movable plate (22) are provided with arc-shaped grooves (23) on both sides. The outer walls of the arc-shaped grooves (23) are provided with evenly distributed AC holes (24).

2. The purification and treatment equipment for petrochemical waste liquid according to claim 1, characterized in that, The cam includes a turntable (8) fixedly connected to the outer wall of the second rotating shaft (7). The outer wall of the turntable (8) is provided with an extension groove (32). A protrusion (31) is inserted and slidably connected inside the extension groove (32). A lever plate (33) is fixedly connected to one side edge of the protrusion (31). The lever plate (33) is slidably connected and extends to the outer side of the turntable (8). Elastic plates (35) are fixedly connected to both sides of the outer wall of the lever plate (33). A pair of evenly distributed positioning grooves (34) are provided on one side of the outer wall of the turntable (8). The positioning grooves (34) cooperate with the elastic plates (35).

3. The purification and treatment equipment for petrochemical waste liquid according to claim 1, characterized in that, A connecting pipe (13) is inserted into and fixedly connected to the outer wall of the extrusion cylinder (10). A feeding hopper (12) is fixedly connected to one side of the outer wall of the first mounting frame (3) through a mounting plate, and the feeding hopper (12) is connected to the connecting pipe (13).

4. The purification and treatment equipment for petrochemical waste liquid according to claim 1, characterized in that, Waterproof push rods (25) are fixedly installed on both sides of the outer wall of the movable plate (22) by mounting brackets. A sealing plate (26) is fixedly connected to the output end of the waterproof push rod (25). A first liquid outlet pipe (15) is inserted and fixedly connected to one side of the outer wall of the treatment box (1). A third liquid outlet pipe (17) and a second liquid outlet pipe (16) are inserted and fixedly connected from top to bottom on one side of the inner wall of the treatment box (1).

5. The purification and treatment equipment for petrochemical waste liquid according to claim 1, characterized in that, The processing box (1) is fixedly connected to a partition cylinder (18) by a mounting bracket. The movable plate (22) is inserted and slidably connected to the outer wall of the partition cylinder (18). A spiral plate (27) is fixedly connected to the outer wall of the first rotating shaft (5). A pair of perforated connecting rings (28) are also fixedly connected to the outer wall of the double plate insert rod (9). The two perforated connecting rings (28) are located on the upper and lower sides of the partition cylinder (18) respectively. A cleaning brush (29) is fixedly connected to the outer wall of the perforated connecting ring (28). The cleaning brush (29) is configured as a disc structure.

6. The purification and treatment equipment for petrochemical waste liquid according to claim 5, characterized in that, The outer walls of the partition cylinder (18) are provided with uniformly distributed liquid holes (19) on both sides.

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