A conveying device for oil sludge harmless treatment

Abstract

The present application relates to the technical field of oil sludge treatment, and particularly relates to a harmless treatment conveying device for oily sludge, which comprises an oil sludge buffer hopper, an oil sludge feeding scraper conveyor and an oil sludge en masse conveyor, a flow guide hopper is fixed to the upper portion in the oil sludge buffer hopper, a conveying track is fixed below the flow guide hopper, a conveying hose is laid in the conveying track, the top end of the conveying hose is connected with the bottom end of the flow guide hopper at a discharging port, a cross pipe is further fixed below the flow guide hopper, a rotating drum is coaxially and rotatably installed on the cross pipe, a plurality of extrusion bodies are fixed to the outer surface of the rotating drum in the circumferential direction, the movement path of the extrusion bodies corresponds to the conveying track, so that the rotating drum drives the extrusion bodies to intermittently extrude the conveying hose in the conveying track. The conveying device composed of the oil sludge buffer hopper, the oil sludge feeding scraper conveyor and the oil sludge en masse conveyor can realize closed conveying of the oil sludge by using two groups of scraper conveyors, reduce odor overflow, reduce material scattering, and achieve better conveying effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of oil sludge treatment, and particularly relates to a conveying device for harmless treatment of oily sludge. BACKGROUND

[0002] In the process of harmless treatment of oil sludge, a conveying device is needed to convey the oil sludge to a thermal phase separation complete equipment for treatment. In the prior art, the conveying device for oil sludge is mainly a belt conveyor. The biggest problem of the device is that it is not closed, odor spills out, and oil sludge is scattered everywhere. In addition, the oil sludge adhered to the belt conveyor must be cleaned manually in a timely manner. SUMMARY

[0003] The present application aims at solving the problems in the prior art, such as not being closed, odor spills out, oil sludge being scattered everywhere, and the oil sludge adhered to the belt conveyor must be cleaned manually in a timely manner, and provides a conveying device for harmless treatment of oily sludge.

[0004] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme:

[0005] The present application provides a conveying device for harmless treatment of oily sludge, which comprises an oil sludge buffer hopper, an oil sludge feeding scraper conveyor and an oil sludge en masse conveyor. The oil sludge buffer hopper is provided below with the oil sludge feeding scraper conveyor, and the oil sludge feeding scraper conveyor is provided below with the oil sludge en masse conveyor. A flow guide hopper is fixed to the upper part of the oil sludge buffer hopper. A conveying track is fixed below the flow guide hopper. The conveying track is in the shape of a circular arc. A conveying hose is laid in the conveying track. The top end of the conveying hose is connected to the bottom end of the discharge port of the flow guide hopper. A cross pipe is also fixed below the flow guide hopper. The cross pipe is coaxially distributed with the conveying track. A rotating drum is coaxially rotatably installed on the cross pipe. A plurality of extrusion bodies are fixed to the outer surface of the rotating drum in the circumferential direction. The movement path of the extrusion bodies corresponds to the conveying track, so that the rotating drum drives the extrusion bodies to intermittently extrude the conveying hose in the conveying track.

[0006] Preferably, a filter screen is covered on the inner wall of the conveying hose close to the conveying track. A plurality of water-permeable holes are provided through the conveying hose and the conveying track corresponding to the filter screen.

[0007] An inflation box is arranged between every two extrusion bodies. The inflation box is fixedly connected to the rotating drum. The side of the inflation box facing the conveying track is provided with an opening. An elastic membrane is covered and fixed on the opening of the inflation box. The inflation boxes are connected to a gas charging and discharging module.

[0008] Preferably, a drainage box is fixed in the oil sludge buffer hopper below the water-permeable holes. A wastewater treatment device is connected to the bottom of the drainage box through a drainage pipe.

[0009] Preferably, the air charging and discharging module comprises a hollow pipe, a partition, an air guide hole, a charging cavity and an air outlet cavity, the outer surface of the rotating drum is provided with air guide holes in the circumferential direction, the air guide holes are arranged one-to-one with the air charging boxes, and the corresponding air charging boxes and air guide holes are communicated through the hollow pipes; the two ends of the horizontal pipe are closed, the horizontal pipe is fixed with a partition, the partition is used for separating the horizontal pipe into the charging cavity and the air outlet cavity, the charging cavity is arranged close to the conveying track side, the charging cavity is communicated with the air charging device, the air charging device is used for inputting high-pressure gas into the charging cavity, and the inner wall of the charging cavity is provided with a charging hole close to the conveying track side; the inner wall of the air outlet cavity is provided with an air outlet hole;

[0010] Preferably, the bottom end of the conveying hose is fixed with an outer cylinder, the inner cylinder is coaxially arranged in the outer cylinder, and the stirring blade is coaxially fixed in the inner cylinder.

[0011] The inner cylinder is coaxially provided with an annular inner cavity, a plurality of inclined exhaust holes are arranged in the circumferential direction of the inner cylinder, the inner ends of the inclined exhaust holes are communicated with the annular inner cavity, the outer ends of the inclined exhaust holes are communicated with the outside, the outer cylinder is coaxially provided with an annular air guide cavity, the annular air guide cavity is communicated with the annular inner cavity, and the air outlet cavity and the annular air guide cavity are communicated through the air guide pipe.

[0012] Preferably, the cross section of the conveying track is semicircular.

[0013] Preferably, the extrusion body is spherical, and the surface of the extrusion body is polished.

[0014] Preferably, the conveying hose is an ultra-high wear-resistant polyurethane conveying hose.

[0015] The oil sludge harmless treatment conveying device has the beneficial effects that:

[0016] The conveying device composed of the oil sludge buffer hopper, the oil sludge feeding scraper conveyor and the oil sludge en masse conveyor can realize closed conveying of the oil sludge by the two groups of scraper conveyors, reduce odor overflow, reduce material scattering, and has smaller manual cleaning burden and better conveying effect compared with the belt conveying mode;

[0017] The structure composed of the conveying hose, the conveying track and the extrusion body in the oil sludge buffer hopper can make the multiple extrusion bodies intermittently discharge the oil sludge in the conveying hose, so as to control the weight and volume of the oil sludge entering the oil sludge feeding scraper conveyor, avoid too much oil sludge falling at one time, and firmly adsorb on the inner wall of the conveying machine under the action of gravity, so that the oil sludge feeding scraper conveyor is blocked.

[0018] The two extrusion bodies are provided with an inflatable box, when the elastic film on the inflatable box is inflated, the inflated elastic film will extrude the conveying hose to the conveying rail side, so that the sludge in the conveying hose between the two extrusion bodies is extruded, the water in the sludge is squeezed out, and the squeezed water passes through the filter screen on the inner wall of the conveying hose and then flows out through the water-permeable holes on the conveying hose and the conveying rail, so that the water content of the sludge is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 Structure diagram of the conveying device for harmless treatment of oily sludge Figure 1 ;

[0020] Figure 2 Structure diagram of the conveying device for harmless treatment of oily sludge Figure 2 ;

[0021] Figure 3 Internal structure diagram of the sludge buffer hopper of the conveying device for harmless treatment of oily sludge

[0022] Figure 4 Internal component structure diagram of the sludge buffer hopper of the conveying device for harmless treatment of oily sludge Figure 1 ;

[0023] Figure 5 Internal component structure diagram of the sludge buffer hopper of the conveying device for harmless treatment of oily sludge Figure 2 ;

[0024] Figure 6 Structure diagram of the rotating drum of the conveying device for harmless treatment of oily sludge

[0025] Figure 7 Structure diagram of the rotating drum and horizontal drum of the conveying device for harmless treatment of oily sludge

[0026] Figure 8 Structure diagram of the conveying rail and conveying hose of the conveying device for harmless treatment of oily sludge

[0027] Figure 9 Structure diagram of the conveying rail and conveying hose of the conveying device for harmless treatment of oily sludge

[0028] Figure 10 Structure diagram of the conveying rail and conveying hose of the conveying device for harmless treatment of oily sludge Figure 9 ;

[0029] Figure 11An extrusion state diagram of an extrusion body of an oil sludge harmless treatment conveying device and a conveying hose in a conveying track is provided in the present application;

[0030] Figure 12 A gas guide pipe position structure diagram of an oil sludge harmless treatment conveying device is provided in the present application;

[0031] Figure 13 A rotating drum structure diagram of an oil sludge harmless treatment conveying device is provided in the present application Figure 1 ;

[0032] Figure 14 An oblique exhaust hole structure diagram of an oil sludge harmless treatment conveying device is provided in the present application.

[0033] In the figure: 1, grab bucket; 2, oil sludge buffer hopper; 3, oil sludge feeding scraper conveyor; 4, oil sludge en masse conveyor; 5, flow guide hopper; 6, discharge port; 7, conveying track; 8, conveying hose; 9, cross pipe; 10, rotating drum; 11, fixed rod; 12, extrusion body; 13, partition; 14, air punching cavity; 15, air outlet cavity; 16, air punching port; 17, air outlet port; 18, hollow pipe; 19, inflation box; 20, elastic film; 21, filter screen; 22, water permeable hole; 23, gas guide pipe; 24, outer cylinder; 25, inner cylinder; 26, crushing blade; 27, annular inner cavity; 28, oblique exhaust hole; 29, annular gas guide cavity; 30, drainage box; 33, motor; 32, thermal phase separation complete equipment. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments.

[0035] Embodiment 1: Refer to Figures 1-68-11, a harmless treatment of oily sludge conveying device, including oil sludge buffer hopper 2, oil sludge feeding scraper conveyor 3, oil sludge buried scraper conveyor 4, oil sludge buffer hopper 2 below the installation of oil sludge feeding scraper conveyor 3, oil sludge feeding scraper conveyor 3 below the installation of oil sludge buried scraper conveyor 4, oil sludge buffer hopper 2 in the upper part is fixed with flow guide hopper 5, flow guide hopper 5 below is fixed with conveying track 7, conveying track 7 is circular arc, conveying track 7 is laid with conveying hose 8, conveying hose 8 top end and flow guide hopper 5 bottom end discharge port 6 connection, flow guide hopper 5 below is also fixed with horizontal pipe 9, horizontal pipe 9 and conveying track 7 coaxial distribution, horizontal pipe 9 is coaxially rotatably installed with rotating drum 10, rotating drum 10 is driven connected with motor, rotating drum 10 outer surface is fixed with a plurality of extrusion bodies 12 along the circumference, extrusion body 12 and rotating drum 10 are fixedly connected by fixed rod 11, the movement path of extrusion body 12 corresponds to conveying track 7, the motor is used for driving rotating drum 10 to drive extrusion body 12 to do circular motion, so that rotating drum 10 drives extrusion body 12 to intermittently extrude conveying hose 8 in conveying track 7. By using extrusion body 12 to extrude the oil sludge in the conveying hose 8 intermittently, so that the oil sludge in the oil sludge buffer hopper 2 can be intermittently dropped into the oil sludge scraper conveyor, thereby realizing the buffering effect, avoiding the situation that too much oil sludge falls to cause the oil sludge scraper conveyor to be unable to operate normally. The conveying track 7 of the present application can be arranged in multiple, and the corresponding structure can also be arranged not too much, thereby improving the oil sludge feeding speed.

[0036] The outer wall of the oil sludge buffer hopper 2 can be fixed with a vibrating feeder motor to accelerate the downward flow speed of the oil sludge in the hopper 2.

[0037] The inner wall of the conveying hose 8 is covered with a filter screen 21 near one side of the conveying track 7, and a plurality of water permeable holes 22 are provided through the conveying hose 8 and the conveying track 7 corresponding to the filter screen 21.

[0038] An inflation box 19 is provided between every two extrusion bodies 12, the inflation box 19 is fixedly connected with the rotating drum 10, the inflation box 19 is open on the side facing the conveying track 7, and an elastic membrane 20 is covered and fixed on the opening of the inflation box 19, and the inflation box 19 is connected to a gas charging and discharging module.

[0039] When every two extrusion bodies 12 extrude the oil sludge in the conveying hose 8 downward, the inflation box 19 will be inflated, causing the elastic membrane 20 to expand, thereby extruding the conveying hose 8 between the two extrusion bodies 12 to extrude the water in the oil sludge, the extruded water passes through the filter screen 21 and flows out through the water permeable holes 22, and finally falls into the drainage box 30, and finally is discharged into a wastewater treatment device, which can further reduce the water content in the oil sludge, reduce the viscosity of the oil sludge, and make the conveying of the conveyor more convenient.

[0040] A drainage box 30 is fixed inside the sludge buffer hopper 2 below the water permeable hole 22. The bottom of the drainage box 30 is connected to a wastewater treatment device through a drainage pipe.

[0041] The cross-section of the conveyor track 7 is semi-circular.

[0042] The extruded body 12 is spherical, and the surface of the extruded body 12 is polished.

[0043] The conveying hose 8 is an ultra-high wear-resistant polyurethane conveying hose. The semi-circular conveying track 7 fits the conveying hose 8 better. Under the extrusion of the spherical extruder 12, the sludge inside the conveying hose 8 can be squeezed out better. The polished surface of the extruder 12 is smoother, which greatly reduces the frictional resistance between the extruder 12 and the conveying hose 8, and greatly reduces the wear of the conveying hose 8.

[0044] Example 2: Refer to Figure 7 , 12 -14, as another preferred embodiment of the present invention, differs from embodiment 1 in that the inflation / deflation module includes a hollow tube 18, a partition 13, an air guide hole, an inflation chamber 14, and an air outlet chamber 15. An air guide hole is provided through the outer surface of the rotating cylinder 10 along the circumferential direction. The air guide hole is provided in a one-to-one correspondence with the inflation box 19. The corresponding inflation box 19 and the air guide hole are connected through the hollow tube 18. The two ends of the horizontal tube 9 are sealed. A partition 13 is fixed inside the horizontal tube 9. The partition 13 is used to divide the horizontal tube 9 into an inflation chamber 14 and an air outlet chamber 15. The inflation chamber 14 is provided on the side close to the conveying track 7. The inflation chamber 14 is connected to the inflation device. The inflation device is used to input high-pressure gas into the inflation chamber 14. An inflation port 16 is provided through the inner wall of the inflation chamber 14 on the side close to the conveying track 7. An air outlet 17 is provided on the inner wall of the air outlet chamber 15.

[0045] This inflation / deflation module integrates the entire inflation / deflation structure with the rotating drum 10 and the horizontal tube 9. During the rotation of the rotating drum 10, the air guide hole on it can be connected to the air inflating chamber 14 and the air outlet chamber 15 in the horizontal tube 9 in sequence. Then, through the hollow tube 18 connected to the air guide hole, the inflation and deflation of the air box 19 can be realized. This allows the air box 19 to be automatically inflated when it passes the conveying track 7, so that the elastic membrane 20 on it can expand to squeeze the conveying hose 8. When it passes the conveying track 7, the gas inside it will be automatically discharged into the air outlet chamber 15.

[0046] An outer cylinder 24 is fixed directly below the bottom of the conveying hose 8. An inner cylinder 25 is coaxially rotatably installed inside the outer cylinder 24. A churning blade 26 is coaxially fixed inside the inner cylinder 25.

[0047] An annular inner cavity 27 is coaxially formed in the inner cylinder 25. Several oblique exhaust holes 28 are formed circumferentially in the inner cylinder 25. The inner end of the oblique exhaust hole 28 is connected to the annular inner cavity 27, and the outer end of the oblique exhaust hole 28 is connected to the outside. An annular air guiding cavity 29 is coaxially formed in the outer cylinder 24. The annular air guiding cavity 29 is connected to the annular inner cavity 27. The air outlet cavity 15 is connected to the annular air guiding cavity 29 through the air guiding pipe 23.

[0048] The above structure introduces the gas discharged from the outlet chamber 15 into the annular air guide chamber 29 through the air guide pipe 23, and then guides it into the annular inner cavity 27 through the annular air guide chamber 29. Finally, it is discharged through multiple oblique exhaust holes 28 connected to the annular inner cavity 27. Due to the oblique reaction force generated by the gas discharged from the oblique exhaust holes 28, the outer cylinder 24 rotates, which in turn causes the outer cylinder 24 to drive the internal agitator blades 26 to rotate. In this way, when the sludge at the end of the conveying hose 8 falls into the inner cylinder 25, the agitator blades 26 can disperse the sludge, so that the sludge falls in a dispersed manner, avoiding the situation where the sludge falls in large pieces, which would increase the viscosity with the conveyor.

[0049] The overall workflow of this invention is as follows:

[0050] In practical use, as shown in the attached document Figure 1 As shown, a grab bucket 1 is installed above the entire device. The grab bucket 1 grabs a small amount of sludge from one side and puts it into the sludge buffer hopper 2. The sludge entering the sludge buffer hopper 2 will flow into the conveying hose 8 below under the guidance of the guide bucket 5. At this time, the motor is started, and the motor drives the rotating drum 10 to rotate. The rotating drum 10 drives multiple extrusion bodies 12 to make circular motion. Whenever a group of extrusion bodies 12 moves to the conveying track 7, the two extrusion bodies 12 will separate the conveying hose 8 in the conveying track 7 into a separate section. The sludge in this section will also follow the two extrusion bodies 12 to flow down the conveying hose 8 and finally be discharged through the bottom of the conveying hose 8. In this way, by controlling the rotation speed of the rotating drum 10, the multiple extrusion bodies 12 can intermittently discharge the sludge in the conveying hose 8, thereby controlling the weight and volume of the sludge entering the sludge feeding scraper conveyor 3, and avoiding the situation where too much sludge falls in at one time and is firmly adsorbed on the inner wall of the conveyor under the action of gravity, causing the sludge feeding scraper conveyor 3 to be obstructed.

[0051] In the above process, in the process of rotating the rotating drum 10, whenever the air guide hole between the two extrusion bodies 12 communicates with the inflation port 16 of the inflation cavity 14 in the transverse pipe 9, the high-pressure gas in the inflation cavity 14 will enter the inflation box 19 through the air guide hole and the hollow pipe 18, so that the elastic membrane 20 on the inflation box 19 between the two extrusion bodies 12 expands, and the expanded elastic membrane 20 will extrude the conveying hose 8 towards the conveying rail 7 side, so that the sludge in the conveying hose 8 between the two extrusion bodies 12 is extruded, and the water in the sludge is squeezed out, and the squeezed water passes through the filter screen 21 on the inner wall of the conveying hose 8, and then flows out through the water-permeable hole 22 on the conveying hose 8 and the conveying rail 7, and finally falls into the drainage box 30, so that the water content of the sludge is reduced synchronously in the process of controlling the falling speed of the sludge, and the conveyor is more convenient to convey;

[0052] In the above process, whenever the air guide hole between the two extrusion bodies 12 communicates with the air outlet 17 of the air outlet cavity in the transverse pipe 9, the high-pressure gas in the inflation box 19 will be discharged into the air outlet cavity 15, at this time the air guide pipe 23 will be discharged from the air outlet cavity 15. The high-pressure gas input to the annular air guide cavity 29, and then introduced into the annular inner cavity 27 through the annular air guide cavity 29, and finally discharged through the plurality of inclined air outlet holes 28 communicating with the annular inner cavity 27. Due to the inclined reaction force generated by the gas discharged from the inclined air outlet hole 28, the outer cylinder 24 rotates, and further drives the internal crushing blade 26 to rotate, so that when the sludge at the end of the conveying hose 8 falls into the inner cylinder 25, the crushing blade 26 can stir the sludge, so that the sludge falls in a dispersed state, avoiding the sludge falling in a large block state, and the excessive adhesion of the sludge to the inner wall of the conveyor under the action of gravity. Further reduce the resistance received during the operation of the conveyor.

[0053] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can make equivalent replacement or change according to the technical solution and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. An oil sludge harmless treatment conveying device, comprising an oil sludge buffer hopper (2), an oil sludge feeding scraper conveyor (3) and an oil sludge en masse conveyor (4), characterized in that, The oil sludge buffer hopper (2) is provided below with an oil sludge feeding scraper conveyor (3), the oil sludge feeding scraper conveyor (3) is provided below with an oil sludge en masse conveyor (4), the oil sludge buffer hopper (2) is fixed with a flow guide hopper (5) at the upper portion, the flow guide hopper (5) is fixed below with a conveying track (7), the conveying track (7) is in a circular arc shape, the conveying track (7) is provided with a conveying hose (8) laid therein, the conveying hose (8) is connected at the top end with a discharge port (6) at the bottom end of the flow guide hopper (5), the flow guide hopper (5) is further fixed below with a cross pipe (9), the cross pipe (9) is coaxially distributed with the conveying track (7), the cross pipe (9) is coaxially rotatably provided with a rotating drum (10), the rotating drum (10) is fixed with a plurality of extrusion bodies (12) along the circumference of the outer surface, the movement path of the extrusion bodies (12) corresponds to the conveying track (7) so that the rotating drum (10) drives the extrusion bodies (12) to intermittently extrude the conveying hose (8) in the conveying track (7); The conveying hose (8) is covered with a filter screen (21) on the inner wall close to one side of the conveying track (7), a plurality of water permeable holes (22) are provided through the conveying hose (8) and the conveying track (7) corresponding to the filter screen (21); One inflation box (19) is arranged between every two extrusion bodies (12), the inflation box (19) is fixedly connected with the rotating drum (10), one side of the inflation box (19) facing the conveying track (7) is provided with an opening, the opening of the inflation box (19) is covered and fixed with an elastic membrane (20), the inflation box (19) is connected with a gas charging and discharging module; Gas is filled in the inflation box (19) so that the elastic membrane (20) is inflated, and the conveying hose (8) between the two extrusion bodies (12) is extruded to squeeze out the water in the oil sludge.

2. The oil sludge innocuity treatment conveying device according to claim 1, characterized in that, A drainage box (30) is fixed in the oil sludge buffer hopper (2) below the water permeable holes (22), the bottom of the drainage box (30) is connected with a wastewater treatment device through a drainage pipe.

3. The oil sludge innocuity treatment conveying device according to claim 1, characterized in that, The gas charging and discharging module comprises a hollow pipe (18), a partition plate (13), a gas guide hole, a gas charging cavity (14), and a gas outlet cavity (15), the outer surface of the rotating drum (10) is provided with the gas guide hole through, the gas guide hole is provided one by one corresponding to the inflation box (19), and the corresponding inflation box (19) and the gas guide hole are communicated through the hollow pipe (18); the cross pipe (9) is hermetically provided at both ends, the cross pipe (9) is fixed with the partition plate (13), the partition plate (13) is used for dividing the cross pipe (9) into the gas charging cavity (14) and the gas outlet cavity (15), one side of the gas charging cavity (14) close to the conveying track (7) is provided, the gas charging cavity (14) is communicated with a gas charging device, the gas charging device is used for inputting high-pressure gas into the gas charging cavity (14), a gas charging port (16) is provided through on one side of the inner wall of the gas charging cavity (14) close to the conveying track (7), and a gas outlet port (17) is provided on the inner wall of the gas outlet cavity (15).

4. The oil sludge innocuity treatment conveying device according to claim 3, characterized in that, An outer cylinder (24) is fixed below the bottom end of the conveying hose (8), an inner cylinder (25) is coaxially and rotatably arranged in the outer cylinder (24), and a stirring blade (26) is coaxially and fixedly arranged in the inner cylinder (25); An annular inner cavity (27) is coaxially arranged in the inner cylinder (25), a plurality of oblique exhaust holes (28) are circumferentially arranged in the inner cylinder (25), the inner ends of the oblique exhaust holes (28) are communicated with the annular inner cavity (27), the oblique exhaust holes (28) are communicated with the outside, an annular air guide cavity (29) is coaxially arranged in the outer cylinder (24), the annular air guide cavity (29) is communicated with the annular inner cavity (27), and the air outlet cavity (15) and the annular air guide cavity (29) are communicated through an air guide pipe (23).

5. The oily sludge innocuous treatment delivery device according to claim 1, wherein The conveying track (7) is in a semicircular shape in cross section.

6. The oily sludge innocuous treatment delivery device according to claim 1, wherein The extrusion body (12) is in a spherical shape, and the surface of the extrusion body (12) is polished.

7. The oily sludge innocuous treatment delivery device according to claim 1, wherein The conveying hose (8) is an ultra-high wear-resistant polyurethane conveying hose (8).

Images