Coking wastewater oil removal treatment device

Abstract

The invention belongs to the technical field of coking wastewater treatment, and relates to a coking wastewater deoiling treatment device. A plurality of floating balls (15) are arranged on the periphery of a filter pipe (13) of the floating oil absorption component, the floating balls (15) are connected with the filter pipe (13) through a connecting frame (14), a concave structure (40) is arranged at the upper end of the filter pipe (13), an opening communicated with the filter pipe (13) is formed in the concave structure (40), the lower end of the filter pipe (13) is connected with a telescopic pipe (17), the telescopic pipe (17) is connected with one end of a rope (7), and the other end of the rope (7) bypasses a pulley (5) to be connected with a lifting motor (12). And the telescopic pipe (17) extends to the outside of the settling tank (8) and is communicated with an oil outlet header pipe (34). The coking wastewater oil removal treatment device is simple in structure, coking wastewater oil removal can be conveniently and rapidly achieved, and the sinking depth of the floating oil absorption device in the settling box can be reliably adjusted.

Description

Technical Field

[0001] The invention belongs to the technical field of coking wastewater treatment, and more specifically, relates to a coking wastewater oil removal treatment device. Background Art

[0002] Coking wastewater is a typical wastewater containing aromatic compounds and heterocyclic compounds. Organic pollutants are mainly phenolic compounds, accounting for more than half of organic pollutants. In addition, there are polycyclic aromatic compounds and heterocyclic compounds containing nitrogen, oxygen and sulfur. Inorganic pollutants are mainly hydrides, hydrosulfides, sulfides, ammonium salts, etc. In addition, there are polycyclic aromatic compounds and heterocyclic compounds containing nitrogen, oxygen and sulfur. Coking wastewater is toxic and harmful with high concentration, which is very difficult to treat. Especially for wastewater that has not been treated by dephenolization, ammonia evaporation and oil removal, the phenol, NH3-N and oil content are very high. The treatment process is complicated, the operating cost is high, and the final effluent COD, NH3-N and oil are difficult to meet the discharge standards. Therefore, the large-scale discharge of coking wastewater not only causes serious pollution to the environment, but also directly threatens human health. Many substances are not only difficult to biodegrade, but are usually direct or indirect carcinogens.

[0003] A coking wastewater oil removal treatment device with publication number CN212269661U comprises a coking wastewater pre-filter and an oil-water separator; the coking wastewater pre-filter comprises a cylinder, a filter element installed in the cylinder, a filter cloth sleeved outside the filter element, a liquid outlet pipe, a back-blowing pipe and a circulation pipe connected to the filter element, and a liquid inlet pipe connected to the cylinder; the cylinder is provided with a forward blowing port, a slag discharge port is provided at the bottom, and the other end of the circulation pipe is connected to the cylinder; the oil-water separator comprises a tank body, a cyclone aggregation filter chamber, a primary coarse filtration aggregation chamber, a W-shaped corrugated plate chamber, a secondary fine filtration adsorption chamber and a water outlet transition chamber arranged in the tank body, the tank body is provided with a water inlet pipe connected to the cyclone aggregation filter chamber, and a water outlet pipe connected to the water outlet transition chamber; an oil collecting bag is provided on the top of the tank body, and the oil collecting bag is connected to the oil outlet pipe; the liquid outlet pipe is connected to the water inlet pipe. However, this mechanism has the following problems: first, the filtration time of the pre-filter is too long, and the wastewater needs to be circulated continuously to form a "filter cake" on the filter element before filtration can be performed, which has low efficiency; second, when the "filter cake" is too thick, the efficiency of filtering the wastewater is low, and the filter element needs to be cleaned and then circulated again to form a "filter cake". During the time when the filter element is cleaned, the wastewater cannot be degreased, which wastes time. Summary of the invention

[0004] The technical problem to be solved by the present invention is: in view of the deficiencies in the prior art, a coking wastewater oil removal treatment device is provided which has a simple structure, can conveniently and quickly realize the oil removal of coking wastewater, and can reliably realize the adjustment of the sinking depth of the floating oil suction device in the sedimentation tank.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is:

[0006] The present invention discloses a coking wastewater oil removal treatment device. A floating oil absorption component is arranged inside a sedimentation box. The floating oil absorption component comprises a filter tube. A plurality of floats are arranged around the filter tube. The floats are connected to the filter tube through a connecting frame. A recessed structure is arranged at the upper end of the filter tube. An opening connected to the filter tube is arranged on the recessed structure. The lower end of the filter tube is connected to a telescopic tube. The telescopic tube is connected to one end of a rope. The other end of the rope passes around a pulley and is connected to a lifting motor. The lifting motor is fixed near the upper position in the sedimentation box. The telescopic tube extends to the outside of the sedimentation box and is connected to an oil outlet main pipe.

[0007] The sedimentation box is provided with a partition inside, a channel is arranged at the lower part of the partition, the partition divides the sedimentation box into a sedimentation chamber 1 and a sedimentation chamber 2, a wastewater inlet is arranged at the upper part of the sedimentation chamber 1, and the floating oil absorption component is located inside the sedimentation chamber 2.

[0008] The coking wastewater oil removal treatment device also includes a filter box, a filter element is arranged in the filter box, the filter element is connected to the filter tube located outside the filter box, the filter tube is connected to the circulation filter box through the observation filter tube, and the circulation filter box is connected to the main wastewater pipe through the circulation pipe.

[0009] The oil outlet main pipe is connected to the filter box through the oil outlet pipe, a waste oil control valve is arranged on the oil outlet pipe, the filter box is connected to the main waste water pipe through the waste water pipe, and a waste water control valve is arranged on the main waste water pipe.

[0010] The filter box comprises filter box 1 and filter box 2, a group of filter elements are respectively arranged in filter box 1 and filter box 2, the oil outlet pipe comprises oil outlet pipe 1 and oil outlet pipe 2, the wastewater pipe comprises wastewater pipe 1, oil outlet pipe 1 and wastewater pipe 1 are arranged above filter box 1, a shunt pipe and oil outlet pipe 2 are arranged above filter box 2, and oil outlet pipe 2 and oil outlet pipe 1 are respectively connected to the oil outlet main pipe.

[0011] The wastewater pipe 1 is connected to the shunt pipe, the upper part of the shunt pipe is connected to the main wastewater pipe located below the sedimentation tank, the oil outlet pipe 1 is provided with a waste oil control valve 1, the oil outlet pipe 2 is provided with a waste oil control valve 2, the wastewater pipe 1 is provided with a wastewater control valve 2, the shunt pipe is provided with a wastewater control valve 3, the main wastewater pipe is provided with a wastewater control valve 1, and the observation filter pipe is provided with a filter control valve.

[0012] The connecting frame is provided with an oil removal motor and a motor bracket for installing the oil removal motor. The oil removal motor and the filter tube are located on the same axis. The output end of the oil removal motor is connected to an oil scraper fitted with the recessed structure.

[0013] The connecting frame is provided with an oil removal motor and a motor bracket for installing the oil removal motor. The oil removal motor and the filter tube are located on the same axis. The output end of the oil removal motor is connected to more than two blades, which are located at 1 / 3 of the filter tube near the upper end.

[0014] A coarse filter screen is arranged below the wastewater inlet in the sedimentation chamber 1.

[0015] A flange is arranged at the lower end of the filter tube, the flange is connected to the lifting pipe, and the rope is connected to the flange.

[0016] The technical solution of the present invention is adopted, and the working principle and beneficial effects are as follows:

[0017] The coking wastewater oil removal treatment device described in the present invention has a structure in which a plurality of floats are arranged around the filter tube, and the floats float on the surface of the wastewater to control the height of the filter tube. After the wastewater is left to stand, waste oil floats on the surface of the wastewater, and the waste oil enters from the upper end of the filter tube and is then transported to the oil outlet main pipe. The float is connected to the filter tube through a connecting frame, that is, the filter tube is lifted and lowered synchronously when the float is lifted and lowered. A recessed structure is arranged at the upper end of the filter tube, and an opening connected to the filter tube is arranged on the recessed structure. The lower end of the filter tube is connected to a telescopic tube, and the waste oil enters the recessed structure, and then enters the telescopic tube through the opening, and then enters the oil outlet main pipe. The middle part of the telescopic tube is arranged to be a telescopic part made of a corrugated tube structure, and the telescopic tube can be extended and retracted within a certain range. The telescopic tube is connected to one end of a rope, and the other end of the rope passes around a pulley to connect to a lifting motor, and the lifting motor is fixed in a sedimentation box near an upper position, and the telescopic tube extends to the outside of the sedimentation box to connect to the oil outlet main pipe. The float ball floats on the surface of the wastewater only by the float ball itself, and it is impossible to achieve the sinking of the float ball in the wastewater, and it is also impossible to control the sinking depth of the filter tube in the sedimentation box. By controlling the lifting motor to rotate in one direction through the control component, the sinking depth of the floating oil suction device in the sedimentation box can be controlled. By controlling the lifting motor to rotate in another direction through the control component, the floating depth of the floating oil suction device in the sedimentation box can be controlled to achieve the purpose of adjusting the flow rate and flow of the adsorbed floating oil. The flow rate and flow of the adsorbed floating oil are adjusted according to the height of the wastewater water level in the sedimentation chamber 2. By controlling the wastewater inflow in the sedimentation box, the wastewater water level remains unchanged. Therefore, once the sinking depth of the floating oil suction device in the sedimentation box is adjusted in place, it does not need to be adjusted frequently. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following is a brief description of the contents and symbols in the drawings of this specification:

[0019] Figure 1 It is a structural schematic diagram of the coking wastewater oil removal treatment device according to the present invention;

[0020] Figure 2 This is a schematic structural diagram of a first embodiment of the coking wastewater oil removal treatment device of the present invention;

[0021] Figure 3 This is a structural schematic diagram of a second embodiment of the coking wastewater oil removal treatment device of the present invention;

[0022] Figure 4 This is a schematic structural diagram of a third embodiment of the coking wastewater oil removal treatment device of the present invention;

[0023] Figure 5 It is a structural schematic diagram of a fourth embodiment of the coking wastewater oil removal treatment device of the present invention;

[0024] The marks in the attached drawings are: 1, filter box 1; 2, oil outlet pipe 1; 3, waste oil control valve 1; 4, waste water pipe 1; 5, pulley; 6, coarse filter screen; 7, rope; 8, sedimentation box; 9, partition; 10, waste water inlet; 11, winding roller; 12, lifting motor; 13, filter pipe; 14, connecting frame; 15, float; 16, connecting flange; 17, telescopic pipe; 18, main waste water pipe; 19, waste water control valve 1; 20, waste water control valve 2; 21, circulation pipe; 22, diversion pipe; 23, Waste oil control valve 2; 24. Backflush pipe; 25. Filter pipe; 26. Filter box 2; 27. Filter element; 28. Observation filter tube; 29. ​​Circulation filter box; 30. Filter control valve; 31. Oil-water separator connector; 32. Wastewater control valve 3; 33. Oil outlet pipe 2; 34. Oil outlet main pipe; 35. Automatic door for waste residue cleaning; 36. Motor bracket; 37. Oil removal motor; 38. Oil scraper; 39. Blade; 40. Recessed structure; 41. Channel; 42. Sedimentation chamber 1; 43. Sedimentation chamber 2. DETAILED DESCRIPTION

[0025] The following is a further detailed description of the specific implementation of the present invention, such as the shape, structure, mutual position and connection relationship between the various components involved, the function and working principle of each part, etc., through the description of the embodiments with reference to the accompanying drawings:

[0026] As attached Figure 1 , Attachment Figure 2As shown, the present invention is a coking wastewater oil removal treatment device, a floating oil absorption component is arranged inside the sedimentation box 8, the floating oil absorption component includes a filter tube 13, a plurality of floating balls 15 are arranged around the filter tube 13, the floating balls 15 are connected to the filter tube 13 through a connecting frame 14, a recessed structure 40 is arranged at the upper end of the filter tube 13, an opening connected to the filter tube 13 is arranged on the recessed structure 40, the lower end of the filter tube 13 is connected to a telescopic tube 17, the middle part of the telescopic tube is arranged to be a telescopic part made of a telescopic rubber material or a threaded tube structure, the telescopic tube 17 is connected to one end of a rope 7, the other end of the rope 7 passes around a pulley 5 and is connected to a lifting motor 12, the lifting motor 12 is fixed in the sedimentation box 8 near the upper position, and the telescopic tube 17 extends to the outside of the sedimentation box 8 to connect to the oil outlet main pipe 34. The above structure proposes an improved technical solution to the deficiencies in the prior art. When the structure is set, a plurality of floats 15 are arranged around the filter tube 13. The floats float on the surface of the wastewater to control the height of the filter tube. After the wastewater is left to stand, the waste oil floats on the surface of the wastewater, and the waste oil enters from the upper end of the filter tube and is then transported to the oil outlet main pipe 34. The float 15 is connected to the filter tube 13 through the connecting frame 14, that is, the filter tube rises and falls synchronously when the float rises and falls. A recessed structure 40 is arranged at the upper end of the filter tube 13, and an opening connected to the filter tube 13 is arranged on the recessed structure 40. The lower end of the filter tube 13 is connected to the telescopic tube 17. The waste oil enters the recessed structure 40, and then enters the telescopic tube 17 through the opening, and then enters the oil outlet main pipe 34. The middle part of the telescopic tube 17 is arranged as a telescopic part made of a corrugated tube structure, and the telescopic tube 17 can be telescoped within a certain range. The telescopic tube 17 is connected to one end of the rope 7, and the other end of the rope 7 passes around the pulley 5 to connect to the lifting motor 12. The lifting motor 12 is fixed in the sedimentation box 8 near the upper position, and the telescopic tube 17 extends to the outside of the sedimentation box 8 to connect to the oil outlet main pipe 34. The float ball floats on the surface of the wastewater only by the float ball itself, and it is impossible to achieve the sinking of the float ball in the wastewater, and it is also impossible to control the sinking depth adjustment of the filter tube in the sedimentation box 8. By controlling the lifting motor 12 to rotate in one direction by the control component, the sinking depth of the floating oil suction device in the sedimentation box 8 can be controlled. By controlling the lifting motor 12 to rotate in another direction by the control component, the floating depth of the floating oil suction device in the sedimentation box 8 can be controlled, so as to achieve the purpose of adjusting the flow rate and flow rate of adsorbed floating oil. By controlling the wastewater inflow in the sedimentation box 8, the wastewater level remains unchanged. Therefore, once the sinking depth of the floating oil suction device in the sedimentation box 8 is adjusted in place, it does not need to be adjusted frequently. The coking wastewater oil removal treatment device described in the present invention has a simple structure, can conveniently and quickly realize the coking wastewater oil removal, and can reliably realize the sinking depth adjustment of the floating oil suction device in the sedimentation box.

[0027] The sedimentation box 8 is provided with a partition 9 inside, and a channel 41 is provided at the lower part of the partition 9. The partition 9 divides the sedimentation box 8 into a sedimentation chamber 1 42 and a sedimentation chamber 2 43. A wastewater inlet 10 is provided at the upper part of the sedimentation chamber 1 42, and the floating oil absorption component is located inside the sedimentation chamber 2 43. In the above structure, the partition 9 divides the sedimentation box 8 into a sedimentation chamber 1 42 and a sedimentation chamber 2 43. The sedimentation chamber 1 42 is used for wastewater to enter, and the sedimentation chamber 2 43 is used for wastewater to stand. After standing, the waste oil in the wastewater floats on the upper layer, which is convenient for entering the filter pipe, and then transported to the oil outlet main pipe, and then processed by the filter box.

[0028] The coking wastewater oil removal treatment device also includes a filter box, a filter element is arranged in the filter box, the filter element is connected to the filter tube located outside the filter box, the filter tube is connected to the circulation filter box 29 through the observation filter tube 28, and the circulation filter box 29 is connected to the main wastewater pipe 18 through the circulation pipe.

[0029] In the coking wastewater deoiling treatment device, the oil outlet main pipe 34 is connected to the filter box through the oil outlet pipe, a waste oil control valve is arranged on the oil outlet pipe, the filter box is connected to the main waste water pipe 18 through the waste water pipe, and a waste water control valve is arranged on the main waste water pipe 18. The filter box includes a filter box 1 and a filter box 2 26, a group of filter elements 27 are arranged in the filter box 1 and the filter box 2 26 respectively, the oil outlet pipe includes an oil outlet pipe 1 2 and an oil outlet pipe 2 33, the waste water pipe includes a waste water pipe 1 4, an oil outlet pipe 1 2 and a waste water pipe 1 4 are arranged above the filter box 1, a shunt pipe 22 and an oil outlet pipe 2 33 are arranged above the filter box 2 26, and the oil outlet pipe 2 33 and the oil outlet pipe 1 2 are respectively connected to the oil outlet main pipe 34. The wastewater pipe 14 is connected to the shunt pipe 22, the upper part of the shunt pipe 22 is connected to the main wastewater pipe 18 located below the sedimentation tank 8, the oil outlet pipe 12 is provided with a waste oil control valve 13, the oil outlet pipe 23 is provided with a waste oil control valve 23, the wastewater pipe 14 is provided with a wastewater control valve 20, the shunt pipe 22 is provided with a wastewater control valve 32, the main wastewater pipe 18 is provided with a wastewater control valve 19, and the observation filter pipe 28 is provided with a filter control valve 30.

[0030] As attached Figure 3 As shown, the connecting frame 14 is provided with an oil removal motor 37 and a motor bracket 36 for mounting the oil removal motor 37. The oil removal motor 37 and the filter tube 13 are located on the same axis, and the output end of the oil removal motor 37 is connected to an oil scraper 38 that fits the recessed structure 40. In the above structure, the control component controls the oil removal motor to rotate, and the oil removal motor 37 drives the oil scraper 38 to rotate, so as to scrape off the floating oil on the recessed structure 40 and reliably enter the filter tube 13.

[0031] As attached Figure 4As shown, the connecting frame 14 is provided with an oil removal motor 37 and a motor bracket 36 for mounting the oil removal motor 37. The oil removal motor 37 and the filter tube 13 are located on the same axis. The output end of the oil removal motor 37 is connected to more than two blades 39, and the blades 39 are located at 1 / 3 of the filter tube 13 near the upper end. In the above structure, when the control component controls the oil removal motor 37 to drive the blades 39 to rotate, a vortex is formed in the filter tube 13 to accelerate the speed of floating oil adsorption.

[0032] A coarse filter 6 is arranged below the wastewater inlet 10 in the sedimentation chamber 1 42. In the above structure, the coarse filter 6 is arranged below the wastewater inlet 10 to separate large impurities in the wastewater entering the sedimentation tank 8. The partition 9 divides the sedimentation tank 8 into two parts to buffer the wastewater entering the wastewater inlet 10 and prevent the newly entered wastewater from affecting the wastewater stationary in the sedimentation chamber 2 43.

[0033] A flange 16 is provided at the lower end of the filter tube 13, the flange 16 is connected to the lifting tube 17, and the rope 7 is connected to the flange 16. The flange is used to realize a reliable connection between the filter tube 13 and the lifting tube 17.

[0034] The structure of the present invention is further described below in conjunction with the embodiments of the accompanying drawings:

[0035] like Figure 1As shown: a filter element is arranged in the filter box of the present invention, the filter element 27 is connected to the filter tube 25, the filter tube 25 is connected to the backflush tube 24 above, and the filter tube 25 is connected to the oil-water separator connector 31 below. A sedimentation box 8 is arranged above the filter box, a wastewater inlet 10 is arranged above the sedimentation box 8, a partition 9 and a coarse filter 6 are arranged in the sedimentation box 8, the coarse filter 6 is arranged below the wastewater inlet 10, and is used to separate large impurities in the wastewater, and the partition 9 divides the sedimentation box 8 into two parts to buffer the wastewater coming in from the wastewater inlet 10, so as to prevent the newly-incoming wastewater from affecting the stationary wastewater. A floating oil suction device is provided inside the sedimentation box 8, and the bottom of the floating oil suction device is connected to the telescopic pipe 17 through the flange 16, and the telescopic pipe 17 is connected to the oil outlet main pipe 34 below the sedimentation box 8. There are two groups of filter elements 27, which are respectively arranged in the filter box 1 and the filter box 26, and the two groups of filter elements 27 are respectively connected to the filter pipe 25. The filter box 1 is provided with an oil outlet pipe 2 and a waste water pipe 4 above the filter box 1, and the filter box 2 is provided with a shunt pipe 22 and an oil outlet pipe 2 33 above the filter box 26. The oil outlet pipe 2 33 and the oil outlet pipe 1 2 are connected to the filter box 1. The main oil outlet pipe 34 is connected, the wastewater pipe 14 is connected to the shunt pipe 22, and the upper part of the shunt pipe 22 is connected to the main wastewater pipe 18 at the lower right side of the sedimentation tank 8. The oil outlet pipe 12 and the oil outlet pipe 23 are respectively provided with a waste oil control valve 13 and a waste oil control valve 23. The wastewater pipe 14, the shunt pipe 22, the main wastewater pipe 18 and the observation filter pipe 28 are respectively provided with a wastewater control valve 20, a wastewater control valve 32, a wastewater control valve 19 and a filter control valve 30, which respectively control the opening and closing of each pipeline. An observation filter pipe 28 made of a transparent material is also provided on one side below the filter pipe 25 to observe whether the water in the filter box 1 and the filter box 26 is purified and clear, and the observation filter pipe 28 is connected to the circulation filter box 29. The bottom of the circulation filter box 29 is provided with a circulation pipe 21 connected to the shunt pipe 22, and the wastewater in the circulation filter box 29 that is not purified and clear is sent back to the filter box 1 and the filter box 26 for circulation and purification. The floating oil suction device is provided with a lifting mechanism, including a lifting motor 12 arranged above the sedimentation box 8 and a pulley 5 at the bottom of the sedimentation box 8 for changing the direction of the rope 7. The output end of the lifting motor 12 is provided with a winding roller 11 for collecting and releasing the rope 7. The other end of the rope 7 is connected to the flange 16 below the floating oil suction device. The rotation of the lifting motor 12 controls the floating oil suction device A to sink to a depth in the sedimentation box 8, so that the flow rate and flow rate of the adsorbed floating oil can be reliably adjusted.

[0036] Figure 2The first embodiment of the floating oil suction device includes a filter tube 13 at the center and more than three floats 15 evenly arranged around the filter tube 13. The float 15 is connected to the filter tube 13 via a connecting frame 14. The floating oil directly enters the filter tube 13 at the center, and then is transported to the oil pipe 1 2 and the oil pipe 2 33 via the oil outlet main pipe 34. When the connecting frame 14 is provided with a recessed structure inside, the floating oil first enters the recessed structure and then enters the filter tube 13, which greatly increases the amount of floating oil adsorbed and improves the adsorption efficiency.

[0037] Figure 3 This is the second embodiment of the floating oil suction device. When the connecting frame 14 is provided with a recessed structure (connecting plate) inside, the floating oil will adhere to the recessed structure and affect the efficiency of absorbing the floating oil. At this time, the connecting frame 14 is provided with an oil removal motor 37 and a motor bracket 36 for installing the oil removal motor 37. The oil removal motor 37 and the filter tube 13 are on the same axis, and the output end of the oil removal motor 37 is connected to an oil scraper plate 38 that is in contact with the connecting frame 14. The oil removal motor 37 drives the oil scraper plate 38 to rotate, so as to scrape the floating oil on the conical recess and enter the filter tube 13.

[0038] Figure 4 This is the third embodiment of the floating oil suction device A. When the connecting frame 14 is provided with a recessed structure inside, due to the high speed and amount of floating oil adsorption, the normal adsorption efficiency of the filter tube 13 is low, and the floating oil and wastewater in the conical recess cannot be adsorbed in time. At this time, an oil removal motor 37 and a motor bracket 36 for mounting the oil removal motor 37 are provided on the connecting frame 14. The oil removal motor 37 and the filter tube 13 are on the same axis, and the output end of the oil removal motor 37 is connected to a number greater than two blades 39, and the blades 39 are located at 1 / 3 of the filter tube 13. When the oil removal motor 37 drives the blades 39 to rotate, a vortex is formed in the filter tube 13, thereby accelerating the floating oil adsorption speed.

[0039] Figure 5 This is the fourth embodiment of the floating oil suction device A. When a recessed structure is provided inside the connecting frame 14, an oil removal motor 37 and a motor bracket 36 for installing the oil removal motor 37 are provided on the connecting frame 14. The oil removal motor 37 and the filter tube 13 are on the same axis. The output end of the oil removal motor 37 is also connected to an oil scraper plate 38 that is in contact with the connecting frame 14. At the same time, the oil is scraped from the conical recessed part and a vortex is formed at the filter tube 13 to improve the efficiency of absorbing floating oil.

[0040] The control method and working principle of the coking wastewater oil removal treatment device of the present invention are as follows:

[0041] Coking wastewater enters the sedimentation tank 8 from the wastewater inlet 10. The coarse filter 6 is used to filter large impurities. A partition 9 is provided in the sedimentation tank 8 to reduce the impact of the coking wastewater on the left side on the stationary wastewater on the right side. Wastewater can only enter the right side from the channel under the partition. A floating oil suction device is provided on the right side. The motor 12 controls the rope 7 to adjust the sinking height of the floating oil suction device. The floating oil suction device is used to absorb most of the floating oil on the upper layer, and then it is transported to the filter box 1 and the filter box 2 26 on both sides through the oil outlet main pipe 34. The filter element 27 absorbs the filtered floating oil through the pump to quickly form a "filter cake". At the same time, the filtered oil The incoming water first passes through the observation filter pipe 28 and enters the circulation filter box 29 (the left side also enters the circulation filter box 29). When the water coming out of the observation filter pipe 28 is clear, close the filter control valve 30 and open the wastewater control valve 19 and the wastewater control valve 3 32 to transport the wastewater without floating oil below the sedimentation box 8 to the filter box 1 or the filter box 2 26 (control valve adjustment), and then the filtered water passes through the oil-water separator connecting pipe 31 to the next process oil-water separator; the backflush pipe 24 is used to remove the filter cake on the filter element, and the filter box 1 or the filter box 2 26 is provided with an automatic door for cleaning waste residue. Its characteristics include the following steps: S1: close the waste oil control valve 13 and the wastewater control valve 19, open the filter control valve 30 and the wastewater control valve 3 32, and let the floating oil enter the filter box 2 26 first. The circulation pipe 21 circulates and filters the water in the circulation filter box 29 to the filter box 2 26. S2: When the water in the filter tube 28 is clear, close the waste oil control valve 23, the filter control valve 30, and the waste water control valve 20, open the waste oil control valve 13 and the waste water control valve 19, send the floating oil to the filter box 1, so that the filter element 27 in the filter box 1 forms a filter cake, and at the same time send the waste liquid without floating oil below the sedimentation box 8 to the filter box 26 for filtration, and then enter the next process oil-water separator through the oil-water separator connecting pipe 31. S3: If the filter cake in the filter box 26 is too thick and the efficiency is low, close the waste water control valve 32, the waste oil control valve 13, and the waste oil control valve 23, open the waste water control valve 20, and start the backflush pipe (24) to clean the filter element 27 in the filter box 26, and open the waste residue cleaning automatic door 35, and at the same time, the waste water without floating oil below the sedimentation box 8 is sent to the filter box 1 for filtration. S4: After the filter cake in the second filter box 26 is cleaned, the waste residue cleaning automatic door 35 is closed, and the waste oil control valve 23 is opened to send the floating oil into the second filter box 26 to form a filter cake; the above actions are repeated repeatedly. In this way, the corresponding technical effect can be reliably achieved.

[0042] The coking wastewater oil removal treatment device of the present invention has a structure in which a plurality of floats 15 are arranged around the filter tube 13. The floats float on the surface of the wastewater to control the height of the filter tube. After the wastewater is left to stand, the waste oil floats on the surface of the wastewater, and the waste oil enters from the upper end of the filter tube and is then transported to the oil outlet main pipe 34. The float 15 is connected to the filter tube 13 through the connecting frame 14, that is, the filter tube rises and falls synchronously when the float rises and falls. A recessed structure 40 is arranged on the upper end of the filter tube 13, and an opening connected to the filter tube 13 is arranged on the recessed structure 40. The lower end of the filter tube 13 is connected to the telescopic tube 17, and the waste oil enters the recessed structure 40, and then enters the telescopic tube 17 through the opening, and then enters the oil outlet main pipe 34. The middle part of the telescopic tube 17 is set as a telescopic part made of a corrugated tube structure, and the telescopic tube 17 can be telescoped within a certain range. The telescopic tube 17 is connected to one end of the rope 7, and the other end of the rope 7 passes around the pulley 5 to connect the lifting motor 12. The lifting motor 12 is fixed in the sedimentation box 8 near the upper position, and the telescopic tube 17 extends to the outside of the sedimentation box 8 to connect to the oil outlet main pipe 34. Only through the float itself, the float floats on the surface of the wastewater, and the sinking of the float in the wastewater cannot be achieved, and the sinking depth of the filter tube in the sedimentation box 8 cannot be controlled. By controlling the lifting motor 12 to rotate in one direction by the control component, the sinking depth of the floating oil suction device in the sedimentation box 8 can be controlled, and by controlling the lifting motor 12 to rotate in another direction by the control component, the floating depth of the floating oil suction device in the sedimentation box 8 can be controlled, so as to achieve the purpose of adjusting the flow rate and flow rate of the adsorbed floating oil. By controlling the wastewater inflow into the sedimentation tank 8, the wastewater level is kept constant. Therefore, once the sinking depth of the floating oil suction device in the sedimentation tank 8 is adjusted to the desired depth, frequent adjustments are not required.

[0043] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A coking wastewater deoiling treatment device, characterized in that: A floating oil absorption component is arranged inside the sedimentation box (8), and the floating oil absorption component comprises a filter tube (13). A plurality of floating balls (15) are arranged around the filter tube (13), and the floating balls (15) are connected to the filter tube (13) through a connecting frame (14). A recessed structure (40) is arranged at the upper end of the filter tube (13), and an opening connected to the filter tube (13) is arranged on the recessed structure (40). The lower end of the filter tube (13) is connected to a telescopic tube (17), and the telescopic tube (17) is connected to one end of a rope (7). The other end of the rope (7) passes around a pulley (5) and is connected to a lifting motor (12). The lifting motor (12) is fixed in the sedimentation box (8) near the upper position, and the telescopic tube (17) extends to the outside of the sedimentation box (8) and is connected to an oil outlet main pipe (34).

2. The coking wastewater deoiling treatment device according to claim 1 is characterized in that: The sedimentation box (8) is provided with a partition (9) inside, a channel (41) is provided at the lower part of the partition (9), the partition (9) divides the sedimentation box (8) into a sedimentation chamber 1 (42) and a sedimentation chamber 2 (43), a wastewater inlet (10) is provided at the upper part of the sedimentation chamber 1 (42), and a floating oil absorption component is located inside the sedimentation chamber 2 (43).

3. The coking wastewater deoiling treatment device according to claim 1 or 2, characterized in that: The coking wastewater oil removal treatment device also includes a filter box, a filter element is arranged in the filter box, the filter element is connected to a filter tube located outside the filter box, the filter tube is connected to a circulation filter box (29) through an observation filter tube (28), and the circulation filter box (29) is connected to a main wastewater pipe (18) through a circulation pipe.

4. The coking wastewater deoiling treatment device according to claim 1, characterized in that: The oil outlet main pipe (34) is connected to the filter box through the oil outlet pipe, and a waste oil control valve is arranged on the oil outlet pipe. The filter box is connected to the main waste water pipe (18) through the waste water pipe, and a waste water control valve is arranged on the main waste water pipe (18).

5. The coking wastewater deoiling treatment device according to claim 3 is characterized in that: The filter box comprises a filter box 1 (1) and a filter box 2 (26), a group of filter elements (27) are respectively arranged in the filter box 1 (1) and the filter box 2 (26), the oil outlet pipe comprises an oil outlet pipe 1 (2) and an oil outlet pipe 2 (33), the waste water pipe comprises a waste water pipe 1 (4), the filter box 1 (1) is provided with an oil outlet pipe 1 (2) and a waste water pipe 1 (4) above, the filter box 2 (26) is provided with a shunt pipe (22) and an oil outlet pipe 2 (33) above, and the oil outlet pipe 2 (33) and the oil outlet pipe 1 (2) are respectively connected to the oil outlet main pipe (34).

6. The coking wastewater deoiling treatment device according to claim 4, characterized in that: The wastewater pipe 1 (4) is connected to the shunt pipe (22), the upper part of the shunt pipe (22) is connected to the main wastewater pipe (18) located below the sedimentation tank (8), the oil outlet pipe 1 (2) is provided with a waste oil control valve 1 (3), the oil outlet pipe 2 (33) is provided with a waste oil control valve 2 (23), the wastewater pipe 1 (4) is provided with a wastewater control valve 2 (20), the shunt pipe (22) is provided with a wastewater control valve 3 (32), the main wastewater pipe (18) is provided with a wastewater control valve 1 (19), and the observation filter pipe (28) is provided with a filter control valve (30).

7. The coking wastewater deoiling treatment device according to claim 1 or 2, characterized in that: The connecting frame (14) is provided with an oil removal motor (37) and a motor bracket (36) for mounting the oil removal motor (37); the oil removal motor (37) and the filter tube (13) are located on the same axis; the output end of the oil removal motor (37) is connected to an oil scraper (38) that fits the recessed structure (40).

8. The coking wastewater deoiling treatment device according to claim 1 or 2, characterized in that: The connecting frame (14) is provided with an oil removal motor (37) and a motor bracket (36) for mounting the oil removal motor (37). The oil removal motor (37) and the filter tube (13) are located on the same axis. The output end of the oil removal motor (37) is connected to blades (39) greater than two in number. The blades (39) are located at 1 / 3 of the filter tube (13) near the upper end.

9. The coking wastewater deoiling treatment device according to claim 1 or 2, characterized in that: A coarse filter (6) is arranged in the sedimentation chamber (42) below the wastewater inlet (10).

10. The coking wastewater oil removal treatment device according to claim 1 or 2, characterized in that: A flange (16) is arranged at the lower end of the filter tube (13), the flange (16) is connected to the lifting tube (17), and the rope (7) is connected to the flange (16).

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