Waste heat boiler waste water separation device for petroleum coke production

Abstract

The invention belongs to the technical field of petroleum coke production, and particularly relates to a petroleum coke production waste heat boiler wastewater separation device which comprises a supporting frame, a treatment box and a wastewater containing box are installed on the supporting frame from bottom to top, and a demulsifier containing pipe is fixedly installed on the surface of the lower end of the treatment box; a demulsifying agent containing pipe is arranged in the waste water containing box, the periphery of the demulsifying agent containing pipe is connected with a guiding-out pipe in a penetrating mode, and one end of the guiding-out pipe penetrates through the side wall of the treatment box and is used for spraying a demulsifying agent in the demulsifying agent containing pipe into the treatment box. During the period, a piston plate, a vertical fixing plate, a connecting frame, a gear disc I and a clamping tooth plate are combined, and under the condition that the gear disc I and the clamping tooth plate are meshed and the piston plate synchronously drives the connecting frame to descend under the gravity of the waste liquid, a plurality of branch pipes II are opened in sequence, and the waste liquid is guided into the treatment box.

Description

Technical Field

[0001] The invention relates to the technical field of petroleum coke production, and in particular to a waste water separation device for a waste heat boiler used in petroleum coke production. Background Art

[0002] In the production process of petroleum coke, waste heat boilers are key equipment for energy recovery. The wastewater generated during their operation contains complex chemical components, especially high-concentration emulsified oil. If these substances are discharged into the environment without proper treatment, they will cause serious pollution to the water body and waste precious water resources. Therefore, scientific and effective treatment of waste heat boiler wastewater is not only an urgent need for environmental protection, but also an important measure to achieve resource recycling and enhance the sustainable development capabilities of enterprises.

[0003] Traditional wastewater treatment methods, such as natural sedimentation and chemical coagulation and sedimentation, face many challenges when treating wastewater containing emulsified oil. Due to its tiny droplet size and stable dispersion state, emulsified oil is difficult to be effectively separated by simple physical or chemical methods. In recent years, with the increasingly stringent environmental regulations and the continuous innovation of wastewater treatment technology, the method of using demulsifiers for pretreatment has gradually become the mainstream technology for treating wastewater containing emulsified oil. Demulsifiers destroy the interfacial membrane of emulsified oil droplets, causing them to aggregate into large oil droplets, thereby facilitating subsequent oil-water separation and significantly improving the efficiency and effectiveness of wastewater treatment.

[0004] However, existing wastewater treatment devices still have several technical bottlenecks when applying demulsifiers. First, the mixing uniformity of wastewater and demulsifier is insufficient, which limits the efficiency of demulsifier and causes poor wastewater treatment in some areas. Secondly, the way wastewater is introduced into the treatment device is often extensive and lacks fine control, which can easily cause uneven distribution of wastewater inside the device, further affecting the treatment effect. In addition, the design of the stirring device is complex and has high energy consumption, which not only increases the operating cost, but may also affect the mixing effect of wastewater and demulsifier due to insufficient stirring. For this reason, we provide a wastewater separation device for waste heat boilers used in petroleum coke production. Summary of the invention

[0005] In order to solve the above problems, the present invention proposes a waste water separation device for waste heat boiler used in petroleum coke production, so as to more accurately solve the problems raised in the above background technology.

[0006] The present invention is achieved through the following technical solutions: The invention proposes a wastewater separation device for waste heat boiler used in petroleum coke production, comprising a support frame, on which a treatment box and a wastewater holding box are respectively installed from bottom to top, a demulsifier holding pipe is fixedly installed on the lower end surface of the treatment box, the periphery of the demulsifier holding pipe is connected through a guide pipe, and one end of the guide pipe passes through the side wall of the treatment box, which is used to spray the demulsifier in the demulsifier holding pipe into the interior of the treatment box, the lower end of the wastewater holding box is connected through a liquid outlet pipe, the periphery of the liquid outlet pipe is connected through a branch pipe 1 and a branch pipe 2 from top to bottom, respectively, and the ends of the branch pipe 1 and the branch pipe 2 are designed to be connected to the side of the treatment box, an electromagnetic valve is installed on the branch pipe 1, which is used to control the opening of the branch pipe 1 and guide the wastewater in the wastewater holding box into the interior of the treatment box, a piston is connected to a piston plate at the inner wall of the treatment box, and a control mechanism for connecting and blocking the branch pipe 2 with the treatment box is connected between the branch pipe 2 and the piston plate; The control mechanism includes a vertical fixing plate fixedly connected to the lower end surface of the piston plate, and the vertical fixing plate passes through the lower end of the processing box, the side of the vertical fixing plate is fixedly connected to a connecting frame, a valve plate is installed inside the branch pipe 2, and the periphery of the valve plate is fixedly connected to an axial rotating rod, the axial rotating rod is rotatably connected to the branch pipe 2 through a waterproof bearing, one end of the axial rotating rod is fixedly connected to a gear plate, the end of the connecting frame is fixedly connected to a tooth plate, and the tooth plate is meshingly connected to the gear plate 1; a stirring assembly is connected between the processing box and the piston plate; a pushing mechanism is connected between the demulsifier holding tube and the vertical fixing plate, which is used to push the demulsifier in the demulsifier holding tube into the interior of the processing box; The stirring assembly includes a lap plate fixedly mounted on the upper end of the treatment box, the lap plate is rotatably connected to a hollow rod through a bearing, a solid plug rod is inserted into the inner wall of the hollow rod, and a stirring piece is fixedly mounted on the periphery of the solid plug rod for stirring the waste liquid and the demulsifier; An anti-rotation structure is connected between the hollow rod and the solid insertion rod; a linkage component is connected between the vertical fixing plate and the hollow rod to realize the rotation of the hollow rod.

[0007] Furthermore, the linkage component includes a tooth groove opened on the side of the vertical fixing plate and a belt pulley 2 fixedly installed on the periphery of the hollow rod; the lower end surface of the processing box is fixedly connected with a fixed plate 1, and the fixed plate 1 is rotatably connected to a rotating rod 1 through a bearing; one end of the rotating rod 1 is fixedly connected to a gear plate 2, and the other end of the rotating rod 1 is fixedly connected to a bevel gear 2; a fixed plate 2 is fixedly installed on the back side of the processing box, and the fixed plate 2 is rotatably connected to a rotating rod 2 through a bearing; the lower end of the rotating rod 2 is fixedly connected to a bevel gear 1, and the upper end of the rotating rod 2 is fixedly connected to a belt pulley 1, and a linkage belt is wrapped around the periphery of the belt pulley 1 and the belt pulley 2.

[0008] Furthermore, the anti-rotation structure includes an arcuate groove vertically opened on the periphery of the solid insertion rod and an arcuate strip vertically fixedly connected to the inner wall of the hollow rod, and the arcuate strip is slidably connected to the inner wall of the arcuate groove to prevent relative rotation between the hollow rod and the solid insertion rod.

[0009] Furthermore, the pushing mechanism includes an elastic push-pull rod fixedly connected to the lower end of the vertical fixing plate and a lap rod fixedly connected to the lower end of the demulsifier containing tube, a U-shaped guide tube is fixedly installed on the lower end surface of the lap rod, and the elastic push-pull rod passes through the U-shaped guide tube design to allow the elastic push-pull rod to move in a U-shape, a piston is connected to a piston disk at the inner wall of the demulsifier containing tube, and the lower end surface of the piston disk is fixedly connected to one end of the elastic push-pull rod, and the piston disk is used to move and push the demulsifier in the demulsifier containing tube into the interior of the outlet tube.

[0010] Furthermore, a beating plate is fixedly connected to the periphery of the hollow rod and is at the same horizontal plane as the liquid outlet end of the outlet pipe, so as to be used for beating and dispersing the demulsifier sprayed from the outlet pipe.

[0011] Furthermore, a spring is fixedly connected to the lower end surface of the piston plate, and the lower end of the spring is fixedly connected to the inner bottom wall of the processing box, so as to provide a reset force for the later reset of the piston plate.

[0012] Furthermore, the tooth groove is meshedly connected with the second gear plate, and is used to drive the rotating rod one to rotate during the process of the vertical fixing plate descending. The first bevel gear is meshedly connected with the second bevel gear, and is used to drive the rotating rod two to rotate while the rotating rod one rotates.

[0013] Furthermore, a filling piece is installed on the periphery of the demulsifier containing pipe, which is used to add demulsifier when the demulsifier inside the demulsifier containing pipe is insufficient.

[0014] Beneficial effects of the present invention: The present invention designs the wastewater storage box and the treatment box from high to low, and cooperates with the liquid outlet pipe, branch pipe one and branch pipe two, so that the waste liquid can be gradually introduced into the interior of the treatment box. During this period, the piston plate, the vertical fixing plate, the connecting frame, the gear plate one and the tooth plate are combined. Under the meshing action of the gear plate one and the tooth plate and the piston plate driven by the gravity of the waste liquid to synchronously drive the connecting frame to descend, multiple branch pipes two are opened in sequence and the waste liquid is introduced into the interior of the treatment box, thereby avoiding the problem of insufficient contact between the waste liquid and the demulsifier caused by direct introduction, and improving the waste liquid treatment effect.

[0015] The present invention opens a tooth groove on the side of the vertical fixing plate, and then allows the rotating rod one to drive the bevel gear two to rotate under the meshing action of the tooth groove and the gear disk two, so that the bevel gear one drives the rotating rod two and the belt pulley one to rotate. At this time, the hollow rod drives the solid plug rod to rotate under the cooperation of the belt pulley two and the linkage belt, so as to achieve the stirring effect of the stirring element, further improve the full mixing of the demulsifier and the wastewater, and achieve a better wastewater treatment effect.

[0016] The present invention provides a demulsifier containing tube, so that when the piston plate is lowered by the gravity of the wastewater, the vertical fixing plate drives the elastic push-pull rod to move downward, and then the elastic push-pull rod moves along the path with the cooperation of the U-shaped guide tube, thereby pushing the piston plate to move upward, so that the emulsion inside the demulsifier containing tube is sprayed into the interior of the treatment box through the outlet pipe, thereby achieving the effect of synchronously spraying the demulsifier; during this period, the flapping plate will also rotate along with the rotation of the hollow rod, so that the demulsifier sprayed to the flapping plate is flapped and dispersed, which can improve the mixing of the demulsifier with the wastewater after dispersion, and achieve a better wastewater treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A first stereoscopic view of an embodiment of the present invention; Figure 2 A second stereoscopic view of an embodiment of the present invention; Figure 3 A structural cross-sectional view of an embodiment of the present invention; Figure 4 This is a schematic diagram of the connection structure of a hollow rod and a solid plug rod in one embodiment of the present invention; Figure 5 An embodiment of the present invention Figure 1 A magnified view of the structure at center A; Figure 6 An embodiment of the present invention Figure 2 A magnified view of the structure at B in the middle; Figure 7 An embodiment of the present invention Figure 2 A magnified view of the structure at C in the middle; Figure 8 This is a cross-sectional view of the local structure of branch pipe 2 according to an embodiment of the present invention.

[0018] In the figure: 1, support frame; 2, treatment box; 3, wastewater storage box; 4, demulsifier storage pipe; 5, outlet pipe; 6, liquid outlet pipe; 7, branch pipe 1; 8, branch pipe 2; 9, solenoid valve; 10, piston plate; 11, vertical fixing plate; 12, connecting frame; 13, valve plate; 14, shaft rotating rod; 15, gear plate 1; 16, tooth plate; 17, lap rod; 18, U-shaped guide tube; 19, piston plate; 20, elastic push-pull rod; 21, lap rod Connecting plate; 22. Hollow rod; 23. Solid plug rod; 24. Arc groove; 25. Arc strip; 26. Stirring element; 27. Beating plate; 28. Spring; 29. ​​Tooth groove; 30. Fixed plate 1; 31. Rotating rod 1; 32. Gear plate 2; 33. Fixed plate 2; 34. Rotating rod 2; 35. Bevel gear 1; 36. Bevel gear 2; 37. Belt pulley 1; 38. Belt pulley 2; 39. Interlocking belt; 40. Filling piece. DETAILED DESCRIPTION

[0019] In order to more clearly and completely illustrate the technical solution of the present invention, the present invention is further described below in conjunction with the accompanying drawings.

[0020] like Figure 1-Figure 8 As shown, a waste water separation device for waste heat boiler used in petroleum coke production proposed by one embodiment of the present invention first constructs a support frame 1, on which a treatment box 2 and a waste water storage box 3 are installed from bottom to top. A demulsifier storage pipe 4 is fixedly installed on the lower end surface of the treatment box 2, and the periphery of the demulsifier storage pipe 4 is connected to the inside of the treatment box 2 through an outlet pipe 5, and one end of the outlet pipe 5 penetrates the side wall of the treatment box 2. The lower end of the waste water storage box 3 is connected through a liquid outlet pipe 6, and the periphery of the liquid outlet pipe 6 is respectively connected to a branch pipe 1 7 and a branch pipe 2 8, and the ends of the branch pipe 1 7 and the branch pipe 2 8 are connected to the side of the treatment box 2. A solenoid valve 9 is installed on the branch pipe 1 7 to control the introduction of waste water. The piston inside the treatment box 2 is connected to a piston plate 10, and the piston plate 10 is connected to the branch pipe 2 8 through a control mechanism; the control mechanism is composed of a standing plate 11, a connecting frame 12, a valve plate 13, a shaft rotating rod 14, a gear plate 15 and a tooth plate 16. The vertical fixing plate 11 is fixedly connected to the lower end of the piston plate 10 and penetrates the lower end of the processing box 2. The connecting frame 12 is fixedly connected to the side of the vertical fixing plate 11. The valve plate 13 is installed inside the branch pipe 2 8 and is rotatably connected to the branch pipe 2 8 through the shaft rotating rod 14. One end of the shaft rotating rod 14 is connected to the gear plate 15, and the gear plate 15 is meshed with the tooth plate 16.

[0021] Among them, a stirring assembly is installed between the processing box 2 and the piston plate 10, and the stirring assembly is composed of a lap plate 21, a hollow rod 22, a solid plug rod 23, an arc groove 24, an arc strip 25 and a stirring piece 26. The lap plate 21 is fixedly installed on the upper end of the processing box 2 and is rotatably connected to the hollow rod 22 through a bearing. The solid plug rod 23 is inserted into the hollow rod 22, and an arc groove 24 is provided on the periphery of the solid plug rod 23. The inner wall of the hollow rod 22 is fixedly connected to the arc strip 25, and the arc strip 25 is slidably connected in the arc groove 24. The stirring piece 26 is fixedly installed on the periphery of the solid plug rod 23; a pushing mechanism is connected between the demulsifier holding tube 4 and the vertical fixing plate 11, and the pushing mechanism is composed of an elastic push-pull rod 20, a lap rod 17, a U-shaped guide tube 18 and a piston disc 19. The lower end of the elastic push-pull rod 20 is fixedly connected to the vertical fixing plate 11, and the upper end passes through the U-shaped guide tube 18 and is fixedly connected to the piston disk 19. The piston of the piston disk 19 is connected to the inside of the demulsifier holding tube 4. The device achieves sufficient mixing of wastewater and demulsifier by gradually introducing wastewater and synchronously spraying demulsifier, thereby improving the wastewater treatment effect.

[0022] Further, the linkage component is composed of a tooth groove 29, a fixed plate 1 30, a rotating rod 1 31, a gear plate 2 32, a fixed plate 2 33, a rotating rod 2 34, a bevel gear 1 35, a bevel gear 2 36, a belt pulley 1 37, a belt pulley 2 38 and a linkage belt 39. The tooth groove 29 is provided on the side of the vertical fixing plate 11, and the belt pulley 2 38 is fixedly installed on the periphery of the hollow rod 22. The fixed plate 1 30 is fixedly connected to the lower end of the processing box 2, and is rotatably connected to the rotating rod 1 31 through a bearing. One end of the rotating rod 1 31 is connected to the gear plate 2 32, and the other end is connected to the bevel gear 2 36. The fixed plate 2 33 is fixedly connected to the back of the processing box 2, and is rotatably connected to the rotating rod 2 34 through a bearing. The lower end of the rotating rod 2 34 is connected to the bevel gear 1 35, and the upper end is connected to the belt pulley 1 37. The belt pulley 1 37 and the belt pulley 2 38 are connected by a linkage belt 39.

[0023] The addition of the linkage component enables the hollow rod 22 to rotate as the vertical fixing plate 11 descends, thereby driving the stirring member 26 to stir the wastewater and the demulsifier, thereby improving the mixing effect.

[0024] Furthermore, an arc groove 24 is provided on the periphery of the solid plug rod 23, and an arc strip 25 is fixedly connected to the inner wall of the hollow rod 22. The arc strip 25 is slidably connected in the arc groove 24 to prevent relative rotation between the hollow rod 22 and the solid plug rod 23. The setting of the anti-rotation structure ensures that the solid plug rod 23 can rotate stably in the hollow rod 22 without relative sliding, thereby ensuring the stirring effect.

[0025] Furthermore, the pushing mechanism is composed of an elastic push-pull rod 20, a lap rod 17, a U-shaped conduit 18 and a piston disc 19; wherein the lap rod 17 is fixedly welded to the lower port surface of the demulsifier holding tube 4, and the U-shaped conduit 18 can be fixed to the demulsifier holding tube 4, thereby increasing the stability of the installation of the U-shaped conduit 18; and one end of the elastic push-pull rod 20 is fixedly connected to the vertical fixing plate 11, and the other end passes through the U-shaped conduit 18 and is fixedly connected to the piston disc 19. The piston disc 19 is connected to the inside of the demulsifier holding tube 4. When the vertical fixing plate 11 descends, the elastic push-pull rod 20 moves along the path of the U-shaped conduit 18, pushing the piston disc 19 upward, and spraying the demulsifier from the outlet pipe 5 into the inside of the treatment box 2; the pushing mechanism realizes the synchronous spraying of the demulsifier, and it is mixed more fully with the wastewater.

[0026] Furthermore, the outer periphery of the hollow rod 22 is fixedly connected to a beating plate 27, and the beating plate 27 is at the same horizontal plane as the liquid outlet end of the outlet pipe 5. When the hollow rod 22 rotates, the beating plate 27 rotates accordingly, beating and dispersing the demulsifier sprayed from the outlet pipe 5; the provision of the beating plate 27 improves the dispersing effect of the demulsifier and further enhances the mixing of the wastewater and the demulsifier.

[0027] Furthermore, a spring 28 is fixedly connected to the lower end surface of the piston plate 10, and the lower end of the spring 28 is fixedly connected to the inner bottom wall of the treatment box 2. When the wastewater is treated, the spring 28 provides a reset force for the piston plate 10 to return it to its initial position; the setting of the spring 28 ensures that the piston plate 10 can be smoothly reset after treating the wastewater, preparing for the next treatment.

[0028] Furthermore, the tooth groove 29 is meshed with the gear plate 2 32. When the vertical fixing plate 11 descends, the tooth groove 29 drives the gear plate 2 32 to rotate. The bevel gear 1 35 and the bevel gear 2 36 are meshed with each other. When the gear plate 2 32 rotates, the bevel gear 2 36 is driven to rotate, and then the bevel gear 1 35 and the rotating rod 2 34 are driven to rotate. The meshing of the tooth groove 29 and the gear plate 2 32 and the meshing of the bevel gear 1 35 and the bevel gear 2 36 realize the synchronous rotation of the rotating rod 1 31 and the rotating rod 2 34, which provides a guarantee for the normal operation of the linkage components.

[0029] Furthermore, a filling piece 40 is installed on the periphery of the demulsifier holding pipe 4 for adding demulsifier when the demulsifier is insufficient; the provision of the filling piece 40 ensures sufficient supply of demulsifier inside the demulsifier holding pipe 4, providing a guarantee for wastewater treatment.

[0030] Finally, it should be noted that the basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is only an example and does not constitute a limitation of this specification. Although it is not explicitly stated here, those skilled in the art may make various modifications, improvements and corrections to this specification. Such modifications, improvements and corrections are suggested in this specification, so such modifications, improvements and corrections still belong to the spirit and scope of the exemplary embodiments of this specification. At the same time, this specification uses specific words to describe the embodiments of this specification. For example, "one embodiment", "one embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of this specification. Therefore, it should be emphasized and noted that "one embodiment" or "one embodiment" or "an alternative embodiment" mentioned twice or more in different positions in this specification does not necessarily refer to the same embodiment. In addition, certain features, structures or characteristics in one or more embodiments of this specification can be appropriately combined. In addition, unless explicitly stated in the claims, the order of processing elements and sequences described in this specification, the use of alphanumeric characters, or the use of other names are not used to limit the order of the processes and methods of this specification.

Claims

1. A wastewater separation device for a waste heat boiler for petroleum coke production, comprising a support frame (1), on which a treatment box (2) and a wastewater storage box (3) are respectively installed from bottom to top, characterized in that: A demulsifier holding pipe (4) is fixedly mounted on the lower end surface of the treatment box (2), and a guide pipe (5) is connected to the periphery of the demulsifier holding pipe (4), and one end of the guide pipe (5) passes through the side wall of the treatment box (2) for spraying the demulsifier in the demulsifier holding pipe (4) into the interior of the treatment box (2). A liquid outlet pipe (6) is connected to the lower end of the wastewater holding box (3), and a branch pipe 1 (7) and a branch pipe 2 (8) are connected to the periphery of the liquid outlet pipe (6) from top to bottom. , and the ends of branch pipe one (7) and branch pipe two (8) are designed to penetrate the side of the treatment box (2), the branch pipe one (7) is installed with a solenoid valve (9) for controlling the opening of branch pipe one (7) and guiding the wastewater in the wastewater storage box (3) into the interior of the treatment box (2), the piston at the inner wall of the treatment box (2) is connected to a piston plate (10), and a control mechanism for connecting and blocking branch pipe two (8) with the treatment box (2) is connected between the branch pipe two (8) and the piston plate (10); The control mechanism comprises a vertical fixing plate (11) fixedly connected to the lower end surface of the piston plate (10), and the vertical fixing plate (11) penetrates the lower end of the processing box (2), the side of the vertical fixing plate (11) is fixedly connected to a connecting frame (12), a valve plate (13) is installed inside the branch pipe (8), and the periphery of the valve plate (13) is fixedly connected to an axial rotating rod (14), the axial rotating rod (14) and the branch pipe (8) are rotatably connected through a waterproof bearing, one end of the axial rotating rod (14) is fixedly connected to a gear plate (15), the end of the connecting frame (12) is fixedly connected to a tooth plate (16), and the tooth plate (16) is meshingly connected to the gear plate (15); a stirring assembly is connected between the processing box (2) and the piston plate (10); a pushing mechanism is connected between the demulsifier holding tube (4) and the vertical fixing plate (11), and is used to push the demulsifier in the demulsifier holding tube (4) into the interior of the processing box (2); The stirring assembly comprises a lap plate (21) fixedly mounted on the upper end of the treatment box (2), the lap plate (21) being rotatably connected to a hollow rod (22) via a bearing, a solid plug rod (23) being inserted into the inner wall of the hollow rod (22), and a stirring member (26) being fixedly mounted on the periphery of the solid plug rod (23) for stirring the waste liquid and the demulsifier; An anti-rotation structure is connected between the hollow rod (22) and the solid insertion rod (23); and a linkage component is connected between the vertical fixing plate (11) and the hollow rod (22) for realizing the rotation of the hollow rod (22).

2. A waste water separation device for waste heat boiler for petroleum coke production according to claim 1, characterized in that: The linkage component comprises a tooth groove (29) provided on the side of the vertical fixing plate (11) and a belt pulley (38) fixedly mounted on the periphery of the hollow rod (22); a fixing plate (30) is fixedly connected to the lower end surface of the processing box (2); the fixing plate (30) is rotatably connected to a rotating rod (31) via a bearing; one end of the rotating rod (31) is fixedly connected to a gear plate (32); the other end of the rotating rod (31) is fixedly connected to a bevel gear (36); a fixing plate (33) is fixedly mounted on the back of the processing box (2); the fixing plate (33) is rotatably connected to a rotating rod (34) via a bearing; the lower end of the rotating rod (34) is fixedly connected to a bevel gear (35); the upper end of the rotating rod (34) is fixedly connected to a belt pulley (37); and a linkage belt (39) is wound around the peripheries of the belt pulley (37) and the belt pulley (38).

3. A waste water separation device for waste heat boiler used in petroleum coke production according to claim 1, characterized in that: The anti-rotation structure comprises an arc-shaped groove (24) vertically formed on the periphery of the solid insertion rod (23) and an arc-shaped strip (25) vertically fixedly connected to the inner wall of the hollow rod (22), and the arc-shaped strip (25) is slidably connected to the inner wall of the arc-shaped groove (24) to prevent relative rotation between the hollow rod (22) and the solid insertion rod (23).

4. A waste water separation device for waste heat boiler used in petroleum coke production according to claim 1, characterized in that: The pushing mechanism comprises an elastic push-pull rod (20) fixedly connected to the lower end of the vertical fixing plate (11) and a lap rod (17) fixedly connected to the lower end of the demulsifier holding tube (4); a U-shaped guide tube (18) is fixedly mounted on the lower end surface of the lap rod (17); and the elastic push-pull rod (20) passes through the U-shaped guide tube (18) so as to allow the elastic push-pull rod (20) to move in a U-shaped manner; a piston is connected to a piston disc (19) at the inner wall of the demulsifier holding tube (4); and the lower end surface of the piston disc (19) is fixedly connected to one end of the elastic push-pull rod (20); and the piston disc (19) is used to move and push the demulsifier in the demulsifier holding tube (4) into the interior of the outlet tube (5).

5. The waste water separation device for waste heat boiler used in petroleum coke production according to claim 1, characterized in that: A beating plate (27) is fixedly connected to the periphery of the hollow rod (22) and is located at the same horizontal plane as the liquid outlet end of the outlet pipe (5), and is used to beating and dispersing the demulsifier sprayed from the outlet pipe (5).

6. A waste water separation device for waste heat boiler used in petroleum coke production according to claim 1, characterized in that: A spring (28) is fixedly connected to the lower end surface of the piston plate (10), and the lower end of the spring (28) is fixedly connected to the inner bottom wall of the processing box (2) to provide a reset force for the later reset of the piston plate (10).

7. A waste water separation device for waste heat boiler used in petroleum coke production according to claim 2, characterized in that: The tooth groove (29) is meshedly connected with the second gear plate (32) and is used to drive the first rotating rod (31) to rotate when the vertical fixing plate (11) descends. The first bevel gear (35) and the second bevel gear (36) are meshedly connected and are used to drive the second rotating rod (34) to rotate while the first rotating rod (31) rotates.

8. The waste water separation device for waste heat boiler used in petroleum coke production according to claim 1, characterized in that: A filling piece (40) is installed on the periphery of the demulsifier containing pipe (4) and is used to add demulsifier when the demulsifier inside the demulsifier containing pipe (4) is insufficient.

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