Oily sludge recycling-harmlessness comprehensive treatment process and equipment thereof

Abstract

The invention relates to the technical field of oily sludge treatment, in particular to an oily sludge recycling-harmlessness comprehensive treatment process and equipment thereof.The oily sludge recycling-harmlessness comprehensive treatment process comprises the following steps that S1, dehydration treatment is conducted, specifically, firstly, impurities in oily sludge are removed and crushed through pretreatment equipment, so that subsequent treatment of the oily sludge is facilitated; s2, tempering treatment: adding a tempering agent, such as acetic acid, sodium hydroxide, hydrogen peroxide, calcium oxide, diatomite and polyacrylamide (PAM), into the sludge to improve the performance of the sludge, the addition amount of the sodium hydroxide is 0.5-5% of the dry weight of the sludge, the addition amount of the hydrogen peroxide is 0.5-3% of the dry weight of the sludge, the addition amount of the calcium oxide is 1-10% of the dry weight of the sludge, and the addition amount of the diatomite is 1-10% of the dry weight of the sludge; the addition amount of the diatomite is 1%-5% of the dry weight of the sludge, and the addition amount of the PAM is 0.01%-0.5% of the dry weight of the sludge. According to the oil-containing sludge treatment device, oil-containing sludge can be conveniently and rapidly pretreated through the arranged rotation adjusting device, so that impurities in the sludge can be fully treated.

Description

Technical Field

[0001] The invention relates to the technical field of oily sludge treatment, in particular to a resource-based and harmless comprehensive treatment process for oily sludge and its equipment. Background Art

[0002] Oily sludge refers to sludge mixed with crude oil, various finished oils, residual oil and other heavy oils. It is one of the main pollutants in the petrochemical industry. In the process of oil and gas production, crude oil is carried from the formation to the ground and accumulates in various containers, large tanks and ground facilities such as recovery pools. The sludge needs to be cleaned regularly. At the same time, the ground sludge generated by well operations, perforation of oil gathering and transportation pipelines and oil theft is also an important source. The sludge generated by the sewage treatment system of petrochemical enterprises mainly comes from the bottom mud of the oil separator, the scum of the flotation tank, and the residual activated sludge. In the transportation and storage of oil, due to various accidents, improper operation, obsolete and damaged equipment, Corrosion and other reasons may cause crude oil and refined oil to run, bubble, drip, and leak to the ground, deposit in the ocean, lake, and riverbed, and mix with soil, water, etc. to form oily sludge. The harmful substances in the oily sludge will pollute the surrounding soil, water, and air, accompanied by the generation of foul-smelling gases. Random landfill will lead to serious groundwater pollution and damage the natural original ecology such as food crops, trees, and vegetation. The oil and gas evaporated in the air can irritate the skin, eyes, and respiratory organs, causing harm to human health. Therefore, a comprehensive treatment process for resource-based and harmless treatment of oily sludge and equipment are needed to improve the above-mentioned problems. Summary of the invention

[0003] In view of the problems in the prior art, the present invention provides a comprehensive treatment process and equipment for resource-based and harmless treatment of oily sludge.

[0004] The technical solution adopted by the present invention to solve the technical problem is: a comprehensive treatment process for resource-based and harmless treatment of oily sludge and its equipment, which comprises the following steps: S1. Dehydration treatment: First, the impurities in the oily sludge are removed and crushed through pretreatment equipment, so that the oily sludge is convenient for subsequent treatment; S2. Conditioning treatment: Add conditioning agents such as acetic acid, sodium hydroxide, hydrogen peroxide, calcium oxide, diatomaceous earth and polyacrylamide (PAM) to the sludge to improve the performance of the sludge. The amount of sodium hydroxide added is between 0.5% and 5% of the dry weight of the sludge, the amount of hydrogen peroxide added is between 0.5% and 3% of the dry weight of the sludge, the amount of calcium oxide added is between 1% and 10% of the dry weight of the sludge, the amount of diatomaceous earth added is between 1% and 5% of the dry weight of the sludge, and the amount of PAM added is between 0.01% and 0.5% of the dry weight of the sludge; S3, Drying and mixing treatment: The pre-treated sludge is sent to the drying equipment for drying. During the drying process, the water in the sludge is gradually vaporized by heat to form water vapor, which is discharged, while the dehydrated sludge remains in the equipment; S4. Solidification and molding: Add a solidifying agent to the mixed sludge for solidification and molding, then use a mold to press and mold it and perform curing. Perform quality inspection on the sludge solidified material after curing, including compressive strength, flexural strength, and leaching liquid toxicity index inspection to ensure that the solidified material meets the harmless treatment standard. The sludge solidified material that passes the quality inspection shall be safely landfilled or comprehensively utilized. When landfilling, a landfill that meets environmental protection requirements shall be selected, and it shall be ensured that no secondary pollution is caused during the landfilling process. The sludge solidified material can be used in the fields of building materials and road foundation materials.

[0005] A resource-based and harmless comprehensive treatment equipment for oily sludge, comprising a rotation adjustment device, a rotation adjustment device, a support bracket, a fixed support column, a first motor, a first electric push rod and a dehydration device, wherein the support bracket is symmetrically arranged, the fixed support column is evenly fixedly installed at the bottom end of the support bracket, the rotation adjustment device is arranged between the ends of the support bracket, the dehydration device is arranged below the rotation adjustment device, the rotation adjustment device is arranged at the upper end of the rotation adjustment device, and the first motor is fixedly installed at the outer end of the dehydration device through a fixed frame.

[0006] Preferably, the dehydration device includes a dehydration processing frame, a synchronous rotating wheel, a synchronous rotating belt, a track support seat, a second electric push rod, a fixed mounting plate, a stirring main board and a rotating shaft, the fixed mounting plate is fixedly connected to the front end bottom of the track support seat, the dehydration processing frame is slidably clamped on the track support seat, the rotating shaft is symmetrically rotationally clamped inside the dehydration processing frame, the stirring main board is evenly fixedly installed on the rotating shaft, the synchronous rotating wheel is rotationally clamped on both ends of the dehydration processing frame, the middle part of the synchronous rotating wheel is fixedly connected to the end of the rotating shaft, the synchronous rotating belt is rotatably arranged between the synchronous rotating wheels, the second electric push rod is symmetrically fixedly installed on the track support seat, and the front end of the second electric push rod is fixedly connected to the dehydration processing frame, and an electric heating plate is fixedly installed on the bottom end of the dehydration processing frame.

[0007] Preferably, the rotation adjustment device includes a sliding card plate, a fixed mounting frame, a discharge pipe, a solenoid valve, a pretreatment box, a sealing cover, a second motor, a third electric push rod, a feeding hopper and a limit frame. The pretreatment boxes are evenly distributed, and the fixed mounting frame is fixedly mounted on each pretreatment box by bolts. The sliding card plate is fixedly mounted on both ends of the fixed mounting frame, the sealing cover is arranged at the upper end of the pretreatment box, the second motor is fixedly mounted in the middle of the sealing cover, the discharge pipe is fixedly connected to the middle of the bottom end of the pretreatment box, the solenoid valve is fixedly mounted on the discharge pipe, the limit frame is fixedly connected to the outer end of the pretreatment box, the feeding hopper is slidably clamped in the interior of the limit frame, the third electric push rod is fixedly mounted on the side end of the limit frame, and the front end of the third electric push rod is fixedly connected to the side end of the feeding hopper.

[0008] Preferably, a centrifugal screening barrel is rotatably installed inside the pretreatment box, a feed trough is penetrated through one side of the upper end of the centrifugal screening barrel, and the driving end of the second motor is fixedly connected to the middle part of the upper end of the centrifugal screening barrel, and the bottom end of the centrifugal screening barrel is fixedly connected to an extrusion base by fixing bolts.

[0009] Preferably, the rotation adjustment device comprises a fixed mounting hole, a fixed frame, a driving gear, a rotation adjustment toothed disc, a fourth electric push rod, a fixed mounting disc, a fifth electric push rod, a rotation adjustment cross plate and a third motor, the fixed mounting hole is evenly penetrated and opened at the upper end of the fixed frame, the driving gear and the rotation adjustment toothed disc are rotatably mounted inside the two ends of the fixed frame, and the adjacent driving gears are meshed and connected with the rotation adjustment toothed disc, the middle parts of the driving gears distributed at both ends are connected by a rotating rod, the rotation adjustment cross plate is rotatably clamped inside the bottom end of the fixed frame, and the two ends of the rotation adjustment cross plate are fixedly connected to the middle part of the rotation adjustment toothed disc, the fifth electric push rod is evenly fixedly connected to the bottom end of the rotation adjustment cross plate, the fixed mounting disc is fixedly connected to the bottom end of the fifth electric push rod, the fourth electric push rod is evenly fixedly mounted on the fixed mounting disc, and the third motor is fixedly mounted on the fixed frame.

[0010] Preferably, the bottom end of the fourth electric push rod is fixedly connected to the upper end of the sealing cover, and the second motor is located between the bottom ends of the fourth electric push rod, and the sliding card plate is slidably connected to the inner side of the supporting bracket.

[0011] Preferably, the front end of the first electric push rod is fixedly connected to the outer end of the fixed mounting frame, and the dehydration processing frame is located below the discharge pipe.

[0012] Preferably, an adjusting reset spring is evenly and fixedly installed inside the stirring main board, a telescopic adjusting plate is fixedly connected to the upper end of the adjusting reset spring, and the telescopic adjusting plate is slidably engaged inside the stirring main board.

[0013] Preferably, a guide plate is fixedly mounted on the outer end of the fixed mounting frame, and the guide plate is arranged at an angle of 45°.

[0014] Beneficial effects of the present invention: 1. The present invention facilitates the quick and convenient pretreatment of oily sludge through the provided rotating adjustment device, so that the impurities contained in the sludge can be fully treated. The provided dehydration device can dehydrate, condition and solidify the sludge pretreated in the rotating adjustment device, so that the oily sludge can be conveniently treated and reused.

[0015] 2. The impurities generated during the pretreatment of the present invention can be easily cleaned. After the centrifugal screening barrel is conveniently pulled out from the interior of the pretreatment box, the third motor drives a driving gear to rotate. The rotating driving gear drives the rotating adjusting horizontal plate to rotate by rotating the adjusting toothed disc, so that the fifth electric push rod and the rotating adjusting horizontal plate indirectly drive the interior of the pretreatment box to be pulled out and tilted. The extrusion base is removed by screwing the fixing bolts, so that the impurities intercepted and stored in the centrifugal screening barrel can be removed and processed regularly. The guide plate is tilted outward at a 45° angle, so that the larger impurities discharged from the interior can fall on the guide plate when cleaning, and are guided and slidably transported by the guide plate, so that when the interior of each centrifugal screening barrel is cleaned regularly, the larger impurities intercepted inside can be conveniently cleaned and removed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the main body of the present invention from the front perspective; Figure 2 It is a schematic diagram of the side-view stereoscopic structure of the main body in the present invention; Figure 3 It is a schematic diagram of the structure of the dehydration device in the present invention; Figure 4 It is a schematic diagram of the structure of the dehydration device in the present invention; Figure 5 It is a schematic diagram of the structure of the pretreatment equipment in the present invention; Figure 6 This is a schematic diagram of the internal structure of the pretreatment box in the present invention; Figure 7 This is a schematic diagram of the bottom structure of the centrifugal screening barrel in the present invention; Figure 8It is a schematic diagram of the structure of the rotation adjustment device of the present invention.

[0018] In the figure: 1-rotation adjustment device, 2-pretreatment equipment, 3-support bracket, 4-fixed support column, 5-first motor, 6-first electric push rod, 7-dehydration device, 8-dehydration treatment frame, 9-synchronous rotation wheel, 10-synchronous rotation belt, 11-track support seat, 12-second electric push rod, 13-fixed installation plate, 14-stirring main board, 15-adjustment reset spring, 16-telescopic adjustment plate, 17-rotation shaft, 18-electric heating plate, 19-guide plate, 20-sliding card plate, 21-fixed installation Frame, 22-discharge pipe, 23-solenoid valve, 24-pretreatment box, 25-sealing cover, 26-second motor, 27-third electric push rod, 28-feeding hopper, 29-limiting frame, 30-centrifugal screening barrel, 31-feeding trough, 32-fixing bolt, 33-extrusion base, 34-fixed mounting hole, 35-fixed frame, 36-driving gear, 37-rotation adjustment gear plate, 38-fourth electric push rod, 39-fixed mounting plate, 40-fifth electric push rod, 41-rotation adjustment horizontal plate, 42-third motor. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0020] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0021] The present invention is further described below in conjunction with the accompanying drawings.

[0022] Embodiment 1, a comprehensive treatment process and equipment for resource-based and harmless treatment of oily sludge of the present invention, comprising the following steps: S1. Dehydration treatment: First, the impurities in the oily sludge are removed and crushed through pretreatment equipment, so that the oily sludge is convenient for subsequent treatment; S2. Conditioning treatment: Add conditioning agents such as acetic acid, sodium hydroxide, hydrogen peroxide, calcium oxide, diatomaceous earth and polyacrylamide (PAM) to the sludge to improve the performance of the sludge. The amount of sodium hydroxide added is between 0.5% and 5% of the dry weight of the sludge, the amount of hydrogen peroxide added is between 0.5% and 3% of the dry weight of the sludge, the amount of calcium oxide added is between 1% and 10% of the dry weight of the sludge, the amount of diatomaceous earth added is between 1% and 5% of the dry weight of the sludge, and the amount of PAM added is between 0.01% and 0.5% of the dry weight of the sludge; S3, Drying and mixing treatment: The pre-treated sludge is sent to the drying equipment for drying. During the drying process, the water in the sludge is gradually vaporized by heat to form water vapor, which is discharged, while the dehydrated sludge remains in the equipment; S4. Solidification and molding: Add a solidifying agent to the mixed sludge for solidification and molding, then use a mold to press and mold it and perform curing. Perform quality inspection on the sludge solidified material after curing, including compressive strength, flexural strength, and leaching liquid toxicity index inspection to ensure that the solidified material meets the harmless treatment standard. The sludge solidified material that passes the quality inspection shall be safely landfilled or comprehensively utilized. When landfilling, a landfill that meets environmental protection requirements shall be selected, and it shall be ensured that no secondary pollution is caused during the landfilling process. The sludge solidified material can be used in the fields of building materials and road foundation materials.

[0023] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, a comprehensive treatment equipment for resource utilization and harmlessness of oily sludge comprises a rotation adjustment device 1, a rotation adjustment device 2, a support bracket 3, a fixed support column 4, a first motor 5, a first electric push rod 6 and a dehydration device 7. The support bracket 3 is symmetrically arranged, and the fixed support column 4 is evenly fixedly installed at the bottom end of the support bracket 3. The rotation adjustment device 2 is arranged between the ends of the support bracket 3. The dehydration device 7 is arranged below the rotation adjustment device 2. The rotation adjustment device 1 is arranged at the upper end of the rotation adjustment device 2. The first motor 5 is fixedly installed at the outer end of the dehydration device 7 through a fixed frame. The dehydration device 7 comprises a dehydration processing frame 8, a synchronous rotating wheel 9, a synchronous rotating belt 10, a track support seat 11, a second electric push rod 12, a fixed mounting plate 13, a stirring main board 14 and a rotating shaft 17. The fixed mounting plate 13 is fixedly connected to the front bottom of the track support seat 11. The dehydration processing frame 8 is slidably clamped on the track support seat 11. The rotating shaft 17 is symmetrically rotated and clamped in the interior of the dehydration processing frame 8. The stirring main board 14 is evenly rotated and clamped in the interior of the dehydration processing frame 8. The synchronous rotating wheel 9 is evenly fixedly installed on the rotating shaft 17, the synchronous rotating wheel 9 is rotatably clamped at both ends of the dehydration processing frame 8, the middle part of the synchronous rotating wheel 9 is fixedly connected to the end of the rotating shaft 17, the synchronous rotating belt 10 is rotatably arranged between the synchronous rotating wheels 9, the second electric push rod 12 is symmetrically fixedly installed on the track support seat 11, and the front end of the second electric push rod 12 is fixedly connected to the dehydration processing frame 8, and the bottom end of the dehydration processing frame 8 is fixedly installed with an electric heating plate 18. The synchronous rotating belt 10 can make the synchronous rotating wheel 9 and the rotating shaft 17 rotate synchronously, so that the oily sludge and the conditioning agent inside the dehydration processing frame 8 are fully mixed, and the telescopic adjustment plate 16 can be controlled by controlling the speed to slide outward inside the stirring main board 14. The telescopic adjustment plate 16 has a good stirring and mixing effect as a whole, and the electric heating plate 18 is started to heat the sludge inside the dehydration processing frame 8 to a specified temperature, so that the internal water evaporates and is removed, and then a curing agent is added to the inside of the dehydration processing frame 8 for curing and molding.

[0024] like Figure 5 , Figure 6 and Figure 7As shown, the rotation adjustment device 2 includes a sliding card plate 20, a fixed mounting frame 21, a discharge pipe 22, a solenoid valve 23, a pretreatment box 24, a sealing cover 25, a second motor 26, a third electric push rod 27, a hopper 28 and a limit frame 29. The pretreatment boxes 24 are evenly distributed, and the fixed mounting frame 21 is fixedly installed on each pretreatment box 24 by bolts. The sliding card plate 20 is fixedly installed at both ends of the fixed mounting frame 21, the sealing cover 25 is arranged at the upper end of the pretreatment box 24, the second motor 26 is fixedly installed in the middle of the sealing cover 25, the discharge pipe 22 is fixedly connected to the middle of the bottom end of the pretreatment box 24, the solenoid valve 23 is fixedly installed on the discharge pipe 22, the limit frame 29 is fixedly connected to the outer end of the pretreatment box 24, the hopper 28 is slidably connected to the inside of the limit frame 29, the third electric push rod 27 is fixedly installed on the side end of the limit frame 29, and the front end of the third electric push rod 27 is fixedly connected to the side end of the hopper 28. A centrifugal screening barrel 30 is rotatably installed inside the processing box 24, and a feed trough 31 is opened on one side of the upper end of the centrifugal screening barrel 30, and the driving end of the second motor 26 is fixedly connected to the middle part of the upper end of the centrifugal screening barrel 30, and the bottom end of the centrifugal screening barrel 30 is fixedly connected to the extrusion base 33 by a fixing bolt 32, so that the oily sludge is transported to the inside of the centrifugal screening barrel 30 through each feeding hopper 28, at this time, the third electric push rod 27 drives the feeding hopper 28 to slide downward along the limit frame 29 for a specified distance, so that the bottom end of the feeding hopper 28 is inserted into the inside of the feed trough 31, so that the oily sludge can be smoothly added to the inside of each centrifugal screening barrel 30, and then the feeding hopper 28 is reset by the third electric push rod 27, at this time, the second motor 26 is started to drive each centrifugal screening barrel 30 to rotate, so that the oily sludge inside the centrifugal screening barrel 30 can be filtered by the centrifugal screening barrel 30 and then thrown into the inside of the pretreatment box 24.

[0025] like Figure 8As shown, the rotation adjustment device 1 includes a fixed installation hole 34, a fixed frame 35, a driving gear 36, a rotation adjustment toothed disc 37, a fourth electric push rod 38, a fixed installation disc 39, a fifth electric push rod 40, a rotation adjustment cross plate 41 and a third motor 42. The fixed installation hole 34 is evenly penetrated and opened at the upper end of the fixed frame 35. The driving gear 36 and the rotation adjustment toothed disc 37 are rotatably installed inside the two ends of the fixed frame 35, and the adjacent driving gears 36 are meshed and connected with the rotation adjustment toothed disc 37. The middle parts of the driving gears 36 distributed at the two ends are connected by a rotating rod. The rotation adjustment cross plate 41 is rotatably clamped inside the bottom end of the fixed frame 35, and the two ends of the rotation adjustment cross plate 41 are fixedly connected to the middle part of the rotation adjustment toothed disc 37. The fifth electric push rod 40 is evenly fixed It is fixedly connected to the bottom end of the rotating adjustment cross plate 41, the fixed mounting plate 39 is fixedly connected to the bottom end of the fifth electric push rod 40, the fourth electric push rod 38 is evenly fixedly mounted on the fixed mounting plate 39, and the third motor 42 is fixedly mounted on the fixed frame 35. The fifth electric push rod 40 and the fourth electric push rod 38 are started so that the sealing cover 25 drives the centrifugal screening barrel 30 to fully rise, and then the third motor 42 is started to drive a driving gear 36 to rotate, and the rotating driving gear 36 drives the rotating adjustment cross plate 41 to rotate by rotating the adjusting toothed disc 37, so that the fifth electric push rod 40 and the rotating adjustment cross plate 41 indirectly drive the interior of the pretreatment box 24 to be pulled out and tilted, and the extrusion base 33 is removed by screwing the fixing bolts 32, so that the impurities intercepted and stored inside the centrifugal screening barrel 30 can be removed and processed regularly and conveniently.

[0026] The bottom end of the fourth electric push rod 38 is fixedly connected to the upper end of the sealing cover 25, and the second motor 26 is located between the bottom ends of the fourth electric push rod 38. The sliding card plate 20 is slidably connected to the inner side of the support bracket 3 to play a role of sliding limit.

[0027] The front end of the first electric push rod 6 is fixedly connected to the outer end of the fixed mounting frame 21, and the dehydration processing frame 8 is located below the discharge pipe 22, which can conveniently realize the material receiving processing.

[0028] An adjusting reset spring 15 is evenly fixedly installed inside the stirring main board 14, and a telescopic adjusting plate 16 is fixedly connected to the upper end of the adjusting reset spring 15. The telescopic adjusting plate 16 is slidably connected to the inside of the stirring main board 14, and the size of the stirring area can be conveniently adjusted and controlled by the rotation speed.

[0029] Working principle: In the process of use, the oily sludge is first transported to the inside of the centrifugal screening barrel 30 through each feeding hopper 28. At this time, the third electric push rod 27 drives the feeding hopper 28 to slide down a specified distance along the limit frame 29, so that the bottom end of the feeding hopper 28 is inserted into the inside of the feed trough 31, so that the oily sludge can be smoothly added to the inside of each centrifugal screening barrel 30. Then, the third electric push rod 27 is used to reset the feeding hopper 28. At this time, the second motor 26 is started to drive each centrifugal screening barrel 30 to rotate, so that the centrifugal The oily sludge inside the screening barrel 30 can be filtered by the centrifugal screening barrel 30 and then thrown into the pretreatment box 24, and each fourth electric push rod 38 is started to make the sealing cover 25 quickly lift and lower along the upper end of the pretreatment box 24 for a short distance. At this time, the centrifugal screening barrel 30 is driven to lift and lower inside the pretreatment box 24, and the oily sludge in the pretreatment box 24 can be squeezed, so that the large particles of impurities contained inside are crushed and processed, and the oily sludge is discharged through the discharge pipe 22 set at the bottom of the pretreatment box 24, and the solenoid valve 23 is controlled to open. The fully pre-treated oily sludge is discharged from the discharge pipe 22 to the inside of the dehydration frame 8, and the second electric push rod 12 is started to make the dehydration frame 8 slide along the track support seat 11, so that the pre-treated oily sludge falls evenly in the dehydration frame 8, and a conditioning agent such as acetic acid, sodium hydroxide, hydrogen peroxide, calcium oxide, diatomaceous earth and polyacrylamide is added to the dehydration frame 8 to improve the performance of the sludge, and then the first motor 5 is started to drive a synchronous rotating wheel 9 to rotate, and the synchronous rotating belt 10 can be used to make the synchronous rotating wheel 9 and the rotating shaft 17 rotate synchronously, so that the oily sludge and the conditioning agent in the dehydration frame 8 are fully mixed, and the retractable adjustment plate 16 can be controlled by controlling the speed to slide outwards in the stirring main board 14. The stirring main board 14 and the retractable adjustment plate 16 have a good mixing effect as a whole, and the electric heating plate 18 is started to heat the sludge in the dehydration frame 8 to a specified temperature, so that the internal water evaporates and is removed, and then a curing agent is added to the inside of the dehydration frame 8 for curing and molding; Start the fifth electric push rod 40 and the fourth electric push rod 38 so that the sealing cover 25 drives the centrifugal screening barrel 30 to fully rise, and then start the third motor 42 to drive a driving gear 36 to rotate. The rotating driving gear 36 drives the rotating adjusting cross plate 41 to rotate by rotating the adjusting gear plate 37, so that the fifth electric push rod 40 and the rotating adjusting cross plate 41 indirectly drive the interior of the pretreatment box 24 to be pulled out and tilted, and the extrusion base 33 is removed by screwing the fixing bolts 32, so that the impurities intercepted and stored inside the centrifugal screening barrel 30 can be removed and processed regularly and conveniently.

[0030] Embodiment 2, on the basis of embodiment 1, as Figure 5 and Figure 6As shown, a guide plate 19 is fixedly mounted on the outer end of the fixed mounting frame 21, and the guide plate 19 is arranged in a 45° inclined shape.

[0031] When implementing this embodiment, by means of the guide plate 19 inclined outward at a 45° angle, larger impurities intercepted and discharged from the interior of 30 can fall on the guide plate 19 during cleaning, and can be guided and slidably transported by the guide plate 19, so that when the interior of each centrifugal screening barrel 30 is cleaned regularly, the larger impurities intercepted inside can be conveniently cleaned and removed.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A comprehensive treatment process for resource-based and harmless treatment of oily sludge, characterized by: It includes the following steps: S1. Dehydration treatment: First, the impurities in the oily sludge are removed and crushed through pretreatment equipment, so that the oily sludge is convenient for subsequent treatment; S2. Conditioning treatment: Add conditioning agents such as acetic acid, sodium hydroxide, hydrogen peroxide, calcium oxide, diatomaceous earth and polyacrylamide to the sludge to improve the performance of the sludge. The amount of sodium hydroxide added is between 0.5% and 5% of the dry weight of the sludge, the amount of hydrogen peroxide added is between 0.5% and 3% of the dry weight of the sludge, the amount of calcium oxide added is between 1% and 10% of the dry weight of the sludge, the amount of diatomaceous earth added is between 1% and 5% of the dry weight of the sludge, and the amount of polyacrylamide added is between 0.01% and 0.5% of the dry weight of the sludge; S3, Drying and mixing treatment: The pre-treated sludge is sent to the drying equipment for drying. During the drying process, the water in the sludge is gradually vaporized by heat to form water vapor, which is discharged, while the dehydrated sludge remains in the equipment; S4. Solidification and molding: Add a solidifying agent to the mixed sludge for solidification and molding, then use a mold to press and mold it and perform curing. Perform quality inspection on the sludge solidified material after curing, including compressive strength, flexural strength, and leaching liquid toxicity index inspection to ensure that the solidified material meets the harmless treatment standard. The sludge solidified material that passes the quality inspection shall be safely landfilled or comprehensively utilized. When landfilling, a landfill that meets environmental protection requirements shall be selected, and it shall be ensured that no secondary pollution is caused during the landfilling process. The sludge solidified material can be used in the fields of building materials and road foundation materials.

2. An oily sludge resource-harmless comprehensive treatment equipment, suitable for the oily sludge resource-harmless comprehensive treatment process described in claim 1, characterized in that: The invention comprises a rotation adjustment device (1), a rotation adjustment device (2), a support bracket (3), a fixed support column (4), a first motor (5), a first electric push rod (6) and a dehydration device (7), wherein the support bracket (3) is symmetrically arranged, the fixed support column (4) is evenly fixedly mounted on the bottom end of the support bracket (3), the rotation adjustment device (2) is arranged between the ends of the support bracket (3), the dehydration device (7) is arranged below the rotation adjustment device (2), the rotation adjustment device (1) is arranged at the upper end of the rotation adjustment device (2), and the first motor (5) is fixedly mounted on the outer end of the dehydration device (7) via a fixed frame.

3. The oily sludge resource-safety comprehensive treatment equipment according to claim 2 is characterized by: The dehydration device (7) comprises a dehydration processing frame (8), a synchronous rotating wheel (9), a synchronous rotating belt (10), a track support seat (11), a second electric push rod (12), a fixed mounting plate (13), a stirring main plate (14) and a rotating shaft (17); the fixed mounting plate (13) is fixedly connected to the front bottom of the track support seat (11); the dehydration processing frame (8) is slidably clamped on the track support seat (11); the rotating shaft (17) is symmetrically rotated and clamped inside the dehydration processing frame (8); and the stirring main plate (14) is evenly fixedly installed. The synchronous rotating wheel (9) is mounted on the rotating shaft (17), the synchronous rotating wheel (9) is rotatably connected to the two ends of the dehydration processing frame (8), the middle part of the synchronous rotating wheel (9) is fixedly connected to the end of the rotating shaft (17), the synchronous rotating belt (10) is rotatably arranged between the synchronous rotating wheels (9), the second electric push rod (12) is symmetrically fixedly mounted on the track support seat (11), and the front end of the second electric push rod (12) is fixedly connected to the dehydration processing frame (8), and the bottom end of the dehydration processing frame (8) is fixedly mounted with an electric heating plate (18).

4. The oily sludge resource-safety comprehensive treatment equipment according to claim 3 is characterized by: The rotation adjustment device (2) comprises a sliding card plate (20), a fixed mounting frame (21), a discharge pipe (22), a solenoid valve (23), a pretreatment box (24), a sealing cover (25), a second motor (26), a third electric push rod (27), a hopper (28) and a limit frame (29); the pretreatment boxes (24) are evenly distributed; the fixed mounting frame (21) is fixedly mounted on each pretreatment box (24) by bolts; the sliding card plate (20) is fixedly mounted on both ends of the fixed mounting frame (21); and the sealing cover (25) is arranged at the upper end of the pretreatment box (24). The second motor (26) is fixedly mounted in the middle of the sealing cover (25), the discharge pipe (22) is fixedly connected to the middle of the bottom end of the pretreatment box (24), the solenoid valve (23) is fixedly mounted on the discharge pipe (22), the limit frame (29) is fixedly connected to the outer end of the pretreatment box (24), the feeding hopper (28) is slidably engaged inside the limit frame (29), the third electric push rod (27) is fixedly mounted on the side end of the limit frame (29), and the front end of the third electric push rod (27) is fixedly connected to the side end of the feeding hopper (28).

5. The oily sludge resource-safety comprehensive treatment equipment according to claim 4 is characterized by: A centrifugal screening barrel (30) is rotatably mounted inside the pretreatment box (24), a feed trough (31) is provided through one side of the upper end of the centrifugal screening barrel (30), a driving end of the second motor (26) is fixedly connected to the middle of the upper end of the centrifugal screening barrel (30), and the bottom end of the centrifugal screening barrel (30) is fixedly connected to an extrusion base (33) via fixing bolts (32).

6. The oily sludge resource-based and harmless comprehensive treatment equipment according to claim 5 is characterized by: The rotation adjustment device (1) comprises a fixed installation hole (34), a fixed frame (35), a driving gear (36), a rotation adjustment toothed disc (37), a fourth electric push rod (38), a fixed installation disc (39), a fifth electric push rod (40), a rotation adjustment horizontal plate (41) and a third motor (42), wherein the fixed installation hole (34) is evenly penetrated and opened at the upper end of the fixed frame (35), the driving gear (36) and the rotation adjustment toothed disc (37) are rotationally mounted inside the two ends of the fixed frame (35), and the adjacent driving gears (36) are meshedly connected with the rotation adjustment toothed disc (37). The middle parts of the driving gears (36) distributed at both ends are connected via a rotating rod, the rotating adjustment transverse plate (41) is rotatably clamped inside the bottom end of the fixed frame (35), and the two ends of the rotating adjustment transverse plate (41) are fixedly connected to the middle part of the rotating adjustment toothed disc (37), the fifth electric push rod (40) is evenly fixedly connected to the bottom end of the rotating adjustment transverse plate (41), the fixed mounting plate (39) is fixedly connected to the bottom end of the fifth electric push rod (40), the fourth electric push rod (38) is evenly fixedly mounted on the fixed mounting plate (39), and the third motor (42) is fixedly mounted on the fixed frame (35).

7. The oily sludge resource-safety comprehensive treatment equipment according to claim 6 is characterized by: The bottom end of the fourth electric push rod (38) is fixedly connected to the upper end of the sealing cover (25), and the second motor (26) is located between the bottom ends of the fourth electric push rod (38), and the sliding clamping plate (20) is slidably clamped on the inner side of the support bracket (3).

8. The oily sludge resource-safety comprehensive treatment equipment according to claim 7 is characterized by: The front end of the first electric push rod (6) is fixedly connected to the outer end of the fixed mounting frame (21), and the dehydration processing frame (8) is located below the discharge pipe (22).

9. The oily sludge resource-based and harmless comprehensive treatment equipment according to claim 8 is characterized by: An adjustment return spring (15) is evenly and fixedly installed inside the stirring main board (14), and a telescopic adjustment plate (16) is fixedly connected to the upper end of the adjustment return spring (15), and the telescopic adjustment plate (16) is slidably engaged inside the stirring main board (14).

10. The oily sludge resource-based and harmless comprehensive treatment equipment according to claim 9, characterized in that: A guide plate (19) is fixedly mounted on the outer end of the fixed mounting frame (21), and the guide plate (19) is arranged in a 45° inclined shape.

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