A pretreatment device for oily sludge

Abstract

The utility model relates to the technical field of oily sludge treatment, and specifically discloses a pretreatment device for oily sludge, including a mounting seat and a supporting leg at the bottom of the mounting seat, a treatment cylinder is arranged on the mounting seat, a steel sleeve is inserted into the treatment cylinder, an extension seat connected to the top of the treatment cylinder is fixedly arranged on the top surface of the steel sleeve, and a plurality of groups of drainage holes are equidistantly provided on the steel sleeve along its circumferential direction, a mounting groove is opened on the bottom surface of the extension seat along its circumferential direction, and a water inlet pipe is arranged in the mounting groove, a plurality of nozzles intersecting with the water inlet pipe are equidistantly provided on the water inlet pipe along its circumferential direction, and an outlet pipe intersecting with the water inlet pipe is also inserted into the top surface of the extension seat, and an extrusion device is also arranged on the upper part of the treatment cylinder corresponding to the inner wall of the steel sleeve. The utility model can conveniently and quickly treat oily sludge, thereby improving the use efficiency of the device.

Description

Technical Field

[0001] The utility model relates to the technical field of oily sludge treatment, in particular to a pretreatment device for oily sludge. Background Art

[0002] Oily sludge refers to sludge mixed with heavy oils such as crude oil, various finished oils, and residual oil. At present, the domestic pretreatment method for oily sludge is: usually a shredder is used to break up the ton woven bags filled with oily sludge, and then the woven bag fragments are separated by washing with water. The above treatment method has the following problems:

[0003] First, because the oily sludge is very sticky, when shredding 10-ton woven bags, the oily sludge will stick to the shredder blades, which can easily cause the shredder to jam during use. In addition, the load-bearing belts of the 10-ton woven bags are very tough and difficult to shred. After shredding, the 10-ton woven bag fragments will be mixed in the oily sludge, affecting the safety of the centrifuge.

[0004] Second, the oil sludge also contains metal tools or screws. These metal impurities will not only damage the cutter head of the shredder, but also jam the slag discharging machine when discharging the slag ash after entering the furnace, and cause the low-temperature cracking furnace to shut down urgently, resulting in the risk of explosion of the cracked gas in the furnace and environmental pollution;

[0005] Third, in order to extract the oil from the oily sludge, the oil in the sludge is washed with pulping water, but due to its high viscosity, the oily sludge cannot be separated into agglomerated pieces by pulping, or the pulping time is very long, which affects the disposal yield. In summary, it is urgent to design a pretreatment device for oily sludge. Utility Model Content

[0006] The technical problem to be solved by the utility model is to overcome the above technical defects and provide a pretreatment device for oily sludge which is convenient to operate and treat.

[0007] In order to solve the above problems, the technical solution of the utility model is: a pretreatment device for oily sludge, comprising a mounting seat and a supporting leg at the bottom of the mounting seat, a treatment cylinder is arranged on the mounting seat, a steel sleeve is inserted into the treatment cylinder, an extension seat connected to the top of the treatment cylinder is fixedly arranged on the top surface of the steel sleeve, and a plurality of groups of drainage holes are equidistantly provided on the steel sleeve along its circumferential direction, a mounting groove is opened on the bottom surface of the extension seat along its circumferential direction and a water inlet pipe is arranged in the mounting groove, a plurality of nozzles intersecting with the water inlet pipe are equidistantly provided on the water inlet pipe along its circumferential direction, an outlet pipe intersecting with the water inlet pipe is also inserted into the top surface of the extension seat, and an extrusion device is also arranged on the upper part of the treatment cylinder corresponding to the inner wall of the steel sleeve;

[0008] A processing device for unloading ton-sized woven bags is provided on the top surface of the extension seat, and a discharge port is provided on the bottom surface of the processing cylinder. A spiral feeder connected to the discharge port is provided on the discharge port, and a discharge port is provided on the bottom surface of the other end of the spiral feeder, and the discharge port is connected to the agitator and beater.

[0009] Furthermore, the processing device includes a placement groove and a support rod at the bottom of the placement groove, an electric push rod is fixedly provided on the upper end surface of the placement groove, a connecting seat is fixedly provided on the movable end of the electric push rod, a cutting blade is fixedly provided on the top surface of the connecting seat, a push plate that can be moved left and right is provided in the placement groove below the mounting seat, and a guide groove that abuts against the top surface of the extension seat is also fixedly provided on the bottom wall of the placement groove.

[0010] Furthermore, an electric push rod 2 is fixedly provided on the end face of the placement groove corresponding to the push plate, and the movable end of the electric push rod 2 extends into the placement groove and is fixedly connected to the push plate. A guide rod that can move left and right is also passed through the placement grooves corresponding to the two ends of the push plate, and the inner end of the guide rod is fixedly connected to the push plate.

[0011] Furthermore, the extrusion device includes a support column, a top plate and an electric cylinder. Support columns are fixed at the four corners of the top surface of the mounting seat, and a top plate is commonly provided on the top surfaces of the four support columns. An electric cylinder is fixed at the center of the top plate. The electric cylinder extends under the top plate and is fixed with a pressure plate that matches the inner wall of the steel sleeve.

[0012] Furthermore, each group of drainage holes is equidistantly distributed along the axial direction of the steel sleeve, and the plurality of nozzles and each group of drainage holes are arranged in sequence correspondingly.

[0013] The advantages of the utility model compared with the existing technology are:

[0014] 1. Use the crane to lift the ton woven bag into the placement trough, and then cut the bottom of the woven ton bag by adjusting the left and right movement of the cutting blade. At this time, the oily sludge will fall from the cut into the placement trough, and then the sludge in the placement trough will be pushed into the treatment cylinder by moving the push plate left and right. This can change the phenomenon of breaking the ton woven bag by the shredder;

[0015] 2. The oily sludge is squeezed into cylindrical strips in the cylinder sleeve with a drain hole by the downward movement of the pressing plate. When the oily sludge is squeezed into strips, the strips can be beaten into a pulp structure by water under the action of the water inlet pipe and the nozzle, and then the pulp structure is transferred to the agitator through the spiral feeder. In the agitator, the mud is allowed to settle and the oil is allowed to float to achieve the purpose of oil and mud separation and oil recovery. At the same time, metal tools or block metals such as screws can be separated from the oily sludge through the drain hole in the cylinder sleeve, so there will be no safety risks and environmental pollution risks caused by the presence of metal products in the oily sludge.

[0016] 3. Because metal tools, screws and other metal debris are separated by the drainage hole, the risk of burning caused by sparks during shredding can be completely avoided, as well as the risk of combustible gas explosion in the furnace and environmental pollution caused by the slag containing metal debris being stuck during the slag discharge and the emergency shutdown during the slag discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front structural diagram of the utility model.

[0018] Figure 2 It is a top view of the utility model.

[0019] Figure 3 It is a side view of the utility model.

[0020] Figure 4 It is a front structural diagram of the cylinder sleeve of the utility model.

[0021] Figure 5 It is a bottom view of the cylinder sleeve of the utility model.

[0022] As shown in the figure: 1. Mounting seat; 2. Support legs; 3. Processing cylinder; 4. Steel sleeve; 5. Extension seat; 6. Drain hole; 7. Mounting groove; 8. Water inlet pipe; 9. Nozzle; 10. Discharge port; 11. Screw feeder; 12. Placement groove; 13. Mixer and beater; 14. Discharge port; 15. Support column; 16. Top plate; 17. Electric cylinder; 18. Press plate; 19. Electric push rod 1; 20. Connecting seat; 21. Scratching blade; 22. Push plate; 23. Electric push rod 2; 24. Guide rod; 25. Diversion groove; 26. Lead-out pipe. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0024] like Figure 1 , Figure 4 and Figure 5 As shown, a pretreatment device for oily sludge comprises a mounting seat 1 and a supporting leg 2 at the bottom of the mounting seat 1, a treatment barrel 3 is arranged on the mounting seat 1, a steel sleeve 4 is inserted into the treatment barrel 3, an extension seat 5 connected to the top of the treatment barrel 3 is fixedly arranged on the top surface of the steel sleeve 4, a positioning hole is opened on the extension seat 5, the extension seat 5 is fixedly connected to the top surface of the treatment barrel 3 by a positioning bolt under the action of the positioning hole, and a plurality of groups of sewage discharge holes 6 are opened on the steel sleeve 4 along its circumferential direction at equal intervals, a mounting groove 7 is opened on the bottom surface of the extension seat 5 along its circumferential direction, and a water inlet pipe 8 is arranged in the mounting groove 7, a plurality of nozzles 9 intersecting with the water inlet pipe 8 are arranged at equal intervals on the water inlet pipe 8 along its circumferential direction, and a lead-out pipe 26 intersecting with the water inlet pipe 8 is also inserted into the top surface of the extension seat 5, and an extrusion device is also arranged on the upper part of the treatment barrel 3 corresponding to the inner wall of the steel sleeve 4;

[0025] A processing device for unloading ton-sized woven bags is provided on the top surface of the extension seat 5, and a discharge port 10 is provided on the bottom surface of the processing cylinder 3, a screw feeder 11 connected to the discharge port 10 is provided, and a discharge port 14 is provided on the bottom surface of the other end of the screw feeder 11, and the discharge port 14 is connected to the stirring beater 13.

[0026] like Figure 2 As shown, the processing device includes a placement groove 12 and a support rod at the bottom of the placement groove 12, an electric push rod 19 is fixedly provided on the upper end surface of the placement groove 12, a connecting seat 20 is fixedly provided on the movable end of the electric push rod 19, and a cutting blade 21 is fixedly provided on the top surface of the connecting seat 20. The ton woven bag is lifted into the placement groove 12 by a crane so that its bottom abuts against the cutting blade 21, and the contraction of the electric push rod 19 is controlled so that the cutting blade 21 slides over the bottom of the ton woven bag to cut it. At this time, the oily sludge falls into the placement groove 12 under the action of its own weight, and a push plate 22 movable left and right is provided in the placement groove 12 below the connecting seat 20, and a guide groove 25 abutting against the top surface of the extension seat 5 is also fixedly provided on the bottom wall of the placement groove 12. During the rightward movement of the push plate 22, the oily sludge flows from the guide groove 25 into the steel sleeve 4;

[0027] An electric push rod 23 is fixedly provided on the end face of the placement groove 12 corresponding to the push plate 22, and the movable end of the electric push rod 23 extends into the placement groove 12 and is fixedly connected to the push plate 22. A guide rod 24 that can move left and right is also penetrated on the placement grooves 12 corresponding to the two ends of the push plate 22, and the inner end of the guide rod 24 is fixedly connected to the push plate 22.

[0028] like Figure 1 and Figure 3 As shown, the extrusion device includes a support column 15, a top plate 16 and an electric cylinder 17. The support columns 15 are fixed at the four corners of the top surface of the mounting base 1, and a top plate 16 is commonly provided on the top surfaces of the four support columns 15. An electric cylinder 17 is fixed at the central position of the top plate 16. The electric cylinder 17 extends under the top plate 16 and is fixed with a pressure plate 18 that matches the inner wall of the steel sleeve 4.

[0029] like Figure 5 As shown, each group of drainage holes 6 is equidistantly distributed along the axial direction of the steel sleeve 4, and the multiple nozzles 9 and each group of drainage holes 6 are arranged in sequence, so that the cylindrical strips squeezed out from the drainage holes 6 can be better beaten into a slurry structure with water.

[0030] In specific use, firstly, the ton woven bag is hoisted into the placement groove 12 by the driving, and then the electric push rod 19 is controlled to shrink, driving the cutting blade 21 to slide across the bottom of the ton woven bag to cut it. At this time, the oil sludge falls into the placement groove 12 under the action of its own weight, and then the extension of the electric push rod 23 is controlled to drive the push plate 22 to move to the right, so that the oil sludge flows from the guide groove 25 into the steel sleeve 4, and then the extension of the electric cylinder 17 is controlled to drive the pressing plate 1 8 moves downward to squeeze the oil sludge in its steel sleeve 4 so that it is discharged from the drain hole 6 to the cylindrical strip structure. Under the joint action of the lead-out pipe 26, the water inlet pipe 8 and the nozzle 9, the strip can be beaten into a pulp structure with water, and then the pulp structure is transmitted to the stirring beater 13 through the spiral feeder 11. In the stirring beater 13, the sludge is allowed to settle and the oil is allowed to float to achieve the purpose of separating the oil and the mud and recovering the oil, thereby improving the practicability of the device.

[0031] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A pretreatment device for oily sludge, comprising a mounting seat (1) and a support leg (2) at the bottom of the mounting seat (1), wherein a treatment cylinder (3) is provided on the mounting seat (1), characterized in that: A steel sleeve (4) is inserted into the treatment cylinder (3), an extension seat (5) connected to the top of the treatment cylinder (3) is fixedly provided on the top surface of the steel sleeve (4), and a plurality of drainage holes (6) are provided on the steel sleeve (4) at equal intervals along its circumferential direction, a mounting groove (7) is provided on the bottom surface of the extension seat (5) along its circumferential direction, and a water inlet pipe (8) is provided in the mounting groove (7), a plurality of nozzles (9) intersecting the water inlet pipe (8) are provided at equal intervals along its circumferential direction, and an outlet pipe (26) intersecting the water inlet pipe (8) is also inserted into the top surface of the extension seat (5), and an extrusion device is also provided on the upper part of the treatment cylinder (3) corresponding to the inner wall of the steel sleeve (4); A processing device for unloading ton woven bags is provided on the top surface of the extension seat (5), and a discharge port (10) is provided on the bottom surface of the processing cylinder (3), and a spiral feeder (11) connected thereto is provided on the discharge port (10), and a discharge port (14) is provided on the bottom surface of the other end of the spiral feeder (11), and the discharge port (14) is connected to the stirring and beating device (13).

2. The oily sludge pretreatment device according to claim 1, characterized in that: The processing device comprises a placement groove (12) and a support rod at the bottom of the placement groove (12); an electric push rod (19) is fixedly provided on the upper end surface of the placement groove (12); a connecting seat (20) is fixedly provided on the movable end of the electric push rod (19); a cutting blade (21) is fixedly provided on the top surface of the connecting seat (20); a push plate (22) movable leftward and rightward is provided in the placement groove (12) below the connecting seat (20); and a guide groove (25) abutting against the top surface of the extension seat (5) is also fixedly provided on the bottom wall of the placement groove (12).

3. The oily sludge pretreatment device according to claim 2, characterized in that: A second electric push rod (23) is fixedly provided on the end surface of the placement groove (12) corresponding to the push plate (22), and the movable end of the second electric push rod (23) extends into the placement groove (12) and is fixedly connected to the push plate (22). A guide rod (24) that can move left and right is also penetrated through the placement groove (12) corresponding to the two ends of the push plate (22), and the inner end of the guide rod (24) is fixedly connected to the push plate (22).

4. A pretreatment device for oily sludge according to any one of claims 1 to 3, characterized in that: The extrusion device comprises a support column (15), a top plate (16) and an electric cylinder (17). The support columns (15) are fixedly arranged at the four corners of the top surface of the mounting seat (1). A top plate (16) is commonly arranged on the top surfaces of the four support columns (15). An electric cylinder (17) is fixedly arranged at the center of the top plate (16). The electric cylinder (17) extends below the top plate (16) and is fixedly provided with a pressure plate (18) adapted to the inner wall of the steel sleeve (4).

5. The oily sludge pretreatment device according to claim 1, characterized in that: Each group of drainage holes (6) is equidistantly distributed along the axial direction of the steel sleeve (4), and the plurality of nozzles (9) and each group of drainage holes (6) are arranged in sequence and in correspondence.

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