Rolling oil sludge recycling treatment process
Technical Field
The invention belongs to the field of recovery of waste oil sludge, and particularly relates to a recovery treatment process of rolling oil sludge
Background
Along with the development of the steel industry in China, a large amount of rolling oil sludge is generated in the steel rolling section of the steel enterprise every year, the oil sludge cannot be directly used for production, the method belongs to industrial waste, the direct discharge can cause the pollution of soil and water, and the recycling of waste rolling oil becomes a practical problem to be solved by the steel enterprise. The regeneration of the waste oil not only saves energy sources, realizes the maximization of benefits, but also effectively controls the pollution of the waste oil to the environment, achieves the aim of environmental protection, and the rolling oil sludge treatment process and the regeneration process of the waste rolling oil are urgent
Disclosure of Invention
The invention aims at solving the problems in the prior art and provides a rolling sludge recycling treatment method.
In order to achieve the above purpose, the present invention adopts the following technical scheme: the rolling sludge recycling treatment process comprises the following steps:
s1, naturally settling, namely, initially extracting upper liquid after naturally settling the rolling sludge, and obtaining settled sludge;
s2, adding a deoiling agent, and adding the deoiling agent into the settled oil residue;
s3, filtering and separating, namely filtering and separating large particles and small particles in the settled oil residues;
s4, rotating and stirring to make the deoiling agent fully play a role on the large and small particles;
s5, centrifuging, namely centrifuging the oil residue added with the deoiling agent to obtain an oil-water mixed solution;
s6, steam heating and dehydration are carried out, and the oil-water mixed solution is subjected to steam heating and separation of oil liquid and water liquid to obtain base oil;
the rolling sludge recycling system comprises a box body, wherein a waste sludge input port is arranged at the position, close to the periphery, of the upper end of the box body, a liquid storage box is fixedly arranged on one side of the bottom of the box body, a sedimentation box is fixedly arranged on the upper portion of one side of the box body, a mixing centrifugal box is fixedly arranged below the sedimentation box in the box body, and an oil-water separation box is fixedly arranged on the other side of the sedimentation box in the box body.
Preferably, cover plate rotating grooves are symmetrically formed in the waste oil sludge input port, cover plate mounting bases are symmetrically and fixedly arranged on one side, close to the port, of the cover plate rotating grooves in the waste oil sludge input port along the length direction of the waste oil sludge input port, cover plate rotating shafts are slidably arranged in the cover plate mounting bases, cover plate connecting sleeves are arranged on the outer circumference of the cover plate rotating shafts, cover plates are fixedly arranged on one side of the outer side of the cover plate connecting sleeves, one end of each cover plate rotates in the cover plate rotating grooves, a check valve shell is fixedly arranged on one side of the outer upper end of the settling tank, a check valve body is slidably arranged in the check valve shell, the check valve body is connected with the check valve shell through a valve body spring, a deoiling agent storage cylinder is fixedly arranged in the middle of the check valve shell, a first current limiting plate is fixedly arranged on the lower portion of the deoiling agent storage cylinder, a sliding current limiting rod is fixedly arranged on the lower portion of the first current limiting plate in the deoiling agent storage cylinder, one end of the sliding current limiting rod, a first current limiting ball is fixedly arranged on one end of the sliding current limiting rod, and the other end of the sliding current limiting rod penetrates through the second current limiting ball body fixedly arranged on the lower portion of the second current limiting plate.
Preferably, a plurality of track grooves are vertically and symmetrically arranged at four corners in the track grooves, a placing plate telescopic base is fixedly arranged in the track groove at the upper end of the bottom of the four corners of the settling tank, a placing plate telescopic shell is fixedly arranged at the upper end of the placing plate telescopic base, a placing plate telescopic rod is slidably arranged in the placing plate telescopic shell, a placing plate supporting block is fixedly arranged at the output end of the placing plate telescopic rod, a supporting spring is connected to the bottom of the placing plate telescopic base, a placing plate is slidably abutted to the upper end of the supporting spring, the placing plate slides in the track groove, a traction rope connecting block is fixedly arranged on one side of the bottom of the placing plate, an output port sealing end cover is slidably arranged in the sludge outlet along the height direction of the sludge outlet, the output port sealing end cover is elastically connected with the bottom of the settling tank through the sealing spring, a transmission cavity is arranged below the bottom of the settling tank, a delay line is arranged in the middle of the bottom of the sealing end cover, a plurality of traction ropes are slidably arranged on one side of the traction boxes, a delay line is slidably arranged along the two sides of the telescopic guide shrinkage delay line, and a delay line is fixedly arranged on one side of the telescopic guide shrinkage line, and the delay line is slidably arranged on one side of the telescopic guide housing.
Preferably, a rotary shaft is arranged on one side wall of the box body in a sliding manner and horizontally arranged on one side of the sludge outlet, a vibrating rod sleeve is arranged outside the rotary shaft, a conical bushing is fixedly arranged at the upper end of the mixing centrifugal box, a rotary ring is arranged at the lower end of the mixing centrifugal box in a sliding manner, a centrifugal shell is fixedly arranged on the rotary ring, a support rod is fixedly arranged on the periphery of the centrifugal shell, a water suction pipe is fixedly arranged in the middle of the centrifugal shell, a reversing valve is arranged at the upper part of the water suction pipe, a spiral groove is arranged on the inner wall of the water suction pipe, a mounting plate is fixedly arranged at the upper end of the support rod, a second rotary ring is arranged at the upper end of the mounting plate in a sliding manner, a plurality of mixing separation single-port boxes are arranged at the upper end of the second rotary ring along the circumference of the center of the water suction pipe, a large-particle separation cavity is arranged at the middle part of the upper end of the mixing separation single-port boxes, the utility model discloses a waste separator, including mixed separation single-port case, small particle separation chamber, centrifugal shell, outlet closure shell, filter screen, suction pipe, waste residue outlet, outlet closure shell, outlet closure rod, outlet closure seal plate can with mixed separation single-port case one side sealing connection, the mixed separation single-port case upper end both sides are equipped with the flow-limiting switching shell, big particle filter plate has been set firmly between small particle separation chamber and the flow-limiting switching shell, the filter screen has been set firmly at the both ends of mixed separation single-port case, the suction pipe lower extreme has passed the centrifugal shell outside and has set firmly the flow-limiting switching shell, the one side of big particle separation chamber outside is equipped with the waste residue export, outlet closure shell has been set firmly to the waste residue bottom, outlet closure shell sliding is equipped with the outlet closure seal plate, outlet closure seal plate has been set firmly to the output of outlet closure rod.
Preferably, the oil-water separation tank is internally and fixedly provided with a steam separation pipeline, the upper end wall of the steam separation pipeline is provided with a plurality of oil leakage preventing holes along the length direction of the steam separation pipeline, one side outside the oil leakage preventing holes above the steam separation pipeline is fixedly provided with a steam outflow wall, the upper end wall of the oil-water separation tank is internally and fixedly provided with a cooling plate, the lower end of the oil-water separation tank is fixedly provided with a heating device, and the steam separation pipeline is connected with the bottom of the water pumping pipe through a pipeline.
Preferably, a liquid through pipe is arranged on one side of the upper end of the sedimentation tank, a filter screen is arranged at the joint of the liquid through pipe and the sedimentation tank, a liquid storage tank is fixedly arranged on one side of the sedimentation tank, the other end of the liquid through pipe is communicated with the upper end of the liquid storage tank, and a pipeline is arranged at the bottom of the liquid storage tank and is communicated with the steam separation pipeline.
Advantageous effects
1. The solid-liquid centrifugal separation is carried out through the centrifugal device, meanwhile, large and small particles are separated, meanwhile, the surfaces of the large particles are washed and cleaned through the small particles, attachments on the surfaces of the large particles are effectively separated, and the small particles can shuttle to the two sides of the large particles to wash the large particles through the internal structure of the centrifugal device.
2. The deoiling agent is mixed with the oil sludge by inclining the placing plate, the channel is opened, and the vibrating rod rotates to act on the placing plate to vibrate the placing plate when the oil sludge slides down, so that the oil sludge is not accumulated on the placing plate.
Drawings
Fig. 1 is a perspective view of the present invention.
Fig. 2 is a front view of the present invention.
Fig. 3 is a top view of the present invention.
Fig. 4 is a sectional view taken along the direction A-A in fig. 3.
Fig. 5 is a sectional view in the direction B-B of fig. 3.
Fig. 6 is a sectional view in the direction C-C of fig. 5.
Fig. 7 is a sectional view in the direction D-D in fig. 6.
Fig. 8 is a sectional view in the direction E-E of fig. 3.
Fig. 9 is an enlarged view of the structure at F in fig. 4.
Fig. 10 is an enlarged view of the structure at G in fig. 5.
Fig. 11 is an enlarged view of the structure at H in fig. 5.
In the drawing the view of the figure, the tank 10, the waste sludge input port 11, the tank 12, the settling tank 13, the mixing centrifuge tank 14, the oil-water separation tank 15, the cover rotating tank 16, the cover mounting base 17, the cover rotating shaft 18, the cover connecting sleeve 19, the cover 20, the check valve housing 21, the check valve body 22, the valve body spring 23, the deoiling agent storage cylinder 24, the first restrictor plate 25, the second restrictor plate 26, the sliding restrictor rod 27, the first restrictor ball 28, the second restrictor ball 29, the track tank 30, the placement plate telescoping base 31, the placement plate telescoping housing 32, the placement plate telescoping rod 33, the placement plate supporting block 34, the supporting spring 35, the placement plate 36, the sludge outlet 37, the outlet seal end cover 38, the seal spring 39, the haulage rope 40, the transmission chamber 41, the guide roll 42, the seal membrane 43, the retard telescoping base 44, the retard telescoping housing 45, the retard telescoping rod 46, the haulage rope connecting block 47, the rotating shaft 48, the vibrating rod sleeve 49, the drain plate 50, the centrifuge housing 51, the support rod 52, the rotating ring 53, the water extraction pipe 54, the reversing valve 55, the spiral groove 56, 57, the second restrictor plate 58, the mixing chamber 60, the large-particle-separating chamber 60, the filter screen chamber 70, the filter screen outlet port 70, the filter screen chamber 70, the large-closing vent chamber 67, the filter screen chamber 70, the filter screen chamber 60, the large-closing vent chamber 60, the small-opening/closing vent port 67, the small-particle-separating chamber 60, the filter chamber 60, the large-particle-separating chamber 60, the large-separating vent chamber 60, the large-particle-separating chamber 60, the filter chamber 60, the large-separating-particle-separating chamber 60, the filter chamber 60, the large-particle-separating chamber 60, the filter-separating-and the filter-opening-and the filter-opening.
Detailed Description
The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
In the description of the present invention, it should be noted that, the azimuth or positional relationship indicated by the terms "inner", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship that the inventive product is conventionally put in use, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
1-11, a rolling sludge recycling treatment process comprises the following steps:
s1, naturally settling, namely, initially extracting upper liquid after naturally settling the rolling sludge, and obtaining settled sludge;
s2, adding a deoiling agent, and adding the deoiling agent into the settled oil residue;
s3, filtering and separating, namely filtering and separating large particles and small particles in the settled oil residues;
s4, rotating and stirring to make the deoiling agent fully play a role on the large and small particles;
s5, centrifuging, namely centrifuging the oil residue added with the deoiling agent to obtain an oil-water mixed solution;
s6, steam heating and dehydration are carried out, and the oil-water mixed solution is subjected to steam heating and separation of oil liquid and water liquid to obtain base oil;
wherein, step S1-S6 cooperation has used a rolling fatlute recovery processing system, and this rolling fatlute recovery processing system includes box 10, and the department is close to all around in box 10 upper end is equipped with waste oil mud input port 11, and box 10 bottom one side has set firmly liquid reserve tank 12, and box 10 interior one side upper portion has set firmly sedimentation tank 13, and sedimentation tank 13 below has set firmly mixed centrifugal tank 14 in the box 10, and sedimentation tank 13' S opposite side has set firmly oil water separation tank 15 in the box 10.
Further, cover plate rotating grooves 16 are symmetrically formed in the waste oil sludge input port 11 near the port, cover plate mounting bases 17 are symmetrically and fixedly arranged on one side of the waste oil sludge input port 11 near the port, which is close to the cover plate rotating grooves 16, in the length direction of the waste oil sludge input port 11, cover plate rotating shafts 18 are slidably arranged in the cover plate mounting bases 17, cover plate connecting sleeves 19 are arranged on the outer circumference of the cover plate rotating shafts 18, cover plates 20 are fixedly arranged on one side of the outer sides of the cover plate connecting sleeves 19, one end of each cover plate 20 rotates in the cover plate rotating grooves 16, a check valve shell 21 is fixedly arranged on one side of the outer upper end of the sedimentation tank 13, a check valve body 22 is slidably arranged in the check valve shell 21, the check valve body 22 is connected with the check valve shell 21 through a valve body spring 23, a middle part in the check valve shell 21 penetrates through the check valve shell 21 to fixedly arranged in a deoiling agent storage cylinder 24, a first limiting plate 25 is fixedly arranged on the lower part in the deoiling agent storage cylinder 24, a second limiting plate 26 is fixedly arranged below the first limiting plate 25 in the deoiling agent storage cylinder 24, a sliding limiting rod 27 is slidably arranged in the middle of the first limiting plate 25, one end of the sliding limiting rod 27 penetrates through the upper end of the first limiting plate 25, a first limiting ball 28 is fixedly arranged on the other end of the sliding limiting rod 27, and the other end penetrates through the second limiting ball 26 fixedly arranged below the second limiting plate 26.
Further, a plurality of track grooves 30 are vertically and symmetrically arranged at four corners in the track grooves 30, a placing plate telescopic base 31 is fixedly arranged in the track groove 30 at the upper end of the bottom of the four corners of the sedimentation tank 13, a placing plate telescopic shell 32 is fixedly arranged at the upper end of the placing plate telescopic base 31, a placing plate telescopic rod 33 is arranged in the placing plate telescopic shell 32 in a sliding manner, a placing plate supporting block 34 is fixedly arranged at the output end of the placing plate telescopic rod 33, a supporting spring 35 is connected with the bottom of the placing plate telescopic base 31, a placing plate 36 is in sliding abutting connection with the upper end of the supporting spring 35, the placing plate 36 slides in the track groove 30, a traction rope connecting block 47 is fixedly arranged at one side of the bottom of the placing plate 36, an oil sludge outlet 37 is arranged at one side of the bottom of the sedimentation tank 13, an outlet sealing end cover 38 is arranged in the oil sludge outlet 37 in a sliding manner along the height direction of the oil sludge outlet 37, the sealing end cover 38 of the output port is elastically connected with the bottom of the settling tank 13 through a sealing spring 39, one side of the sealing end cover 38 of the output port is provided with a sealing film 43, the sealing film 43 is in sealing connection with the bottom of the sludge output port 37, a transmission cavity 41 is arranged below the bottom of the settling tank 13, a traction rope 40 is arranged in the middle of the bottom of the sealing end cover 38 of the output port, a plurality of guide rollers 42 are symmetrically arranged along the length direction of the transmission cavity 41 in a sliding manner on two side walls in the transmission cavity 41, a shrinkage-delaying telescopic base 44 is fixedly arranged on one side of the bottom of the settling tank 13, a shrinkage-delaying telescopic shell 45 is fixedly arranged on the upper end of the shrinkage-delaying telescopic base 44, a shrinkage-delaying telescopic rod 46 is slidably arranged in the shrinkage-delaying telescopic shell 45, and the output end of the shrinkage-delaying telescopic rod 46 is slidably connected with one side of the bottom of the placing plate 36, and the traction rope 40 passes through the transmission cavity 41 and is connected with a traction rope connecting block 47 through the guide rollers 42.
Further, a rotary shaft 48 is arranged on one side wall of the inner side wall of the box body 10 in a sliding manner and horizontally arranged on one side of the sludge outlet 37, a vibrating rod sleeve 49 is arranged outside the rotary shaft 48, a conical bushing 50 is fixedly arranged at the upper end of the inner side of the mixing centrifugal box 14, a rotary ring 53 is arranged at the lower end of the inner side of the mixing centrifugal box 14 in a sliding manner, a centrifugal shell 51 is fixedly arranged on the rotary ring 53, a supporting rod 52 is fixedly arranged around the inner side of the centrifugal shell 51, a water suction pipe 54 is fixedly arranged in the middle part of the centrifugal shell 51, a reversing valve 55 is arranged at the upper part of the water suction pipe 54, a spiral groove 56 is arranged on the inner wall of the water suction pipe 54, a mounting plate 57 is fixedly arranged at the upper end of the supporting rod 52, a second rotary ring 58 is arranged at the upper end of the mounting plate 57 in a sliding manner, a plurality of mixing separation single-port boxes 59 are arranged at the upper ends of the second rotary ring 58 along the central circumference of the water suction pipe 54, a large particle separation cavity 60 is arranged at the middle part of the upper end of the mixing separation single-port boxes 59, the upper end both sides of the single-port box 59 of the mixed separation are equipped with the current-limiting opening and closing shell 62, set firmly the large granule filter plate 65 between small granule separation chamber 61 and the current-limiting opening and closing shell 62, set firmly the filter screen 64 in the both ends of single-port box 59 of the mixed separation, the lower extreme of the water suction pipe 54 has been passed the centrifugal shell 51 and has set firmly the current-limiting opening and closing shell 62 outward, the sliding of current-limiting opening and closing shell 62 has set firmly the current-limiting opening and closing plate 63, one side outside the large granule separation chamber 60 has the waste residue export 71, the export closure shell 72 has been set firmly to the waste residue export bottom, the sliding of export closure shell 72 has been equipped with export closure rod 73, the output of export closure rod 73 has set firmly export closure closing plate 74, export closure closing plate 74 can with mix single-port box 59 one side sealing connection.
Further, a steam separation pipeline 66 is fixedly arranged in the oil-water separation tank 15, a plurality of oil leakage preventing holes 67 are formed in the upper end wall of the steam separation pipeline 66 along the length direction of the steam separation pipeline 66, a steam outflow wall 69 is fixedly arranged on one side outside the oil leakage preventing holes 67 above the steam separation pipeline 66, a cooling plate 70 is fixedly arranged on the upper end wall in the oil-water separation tank 15, a heating device 68 is fixedly arranged at the lower end in the oil-water separation tank 15, and the steam separation pipeline 66 is connected with the bottom of the water pumping pipe 54 through a pipeline.
Further, a liquid through pipe 75 is arranged on one side of the upper end of the sedimentation tank 13, a filter screen 76 is arranged at the joint of the liquid through pipe 75 and the sedimentation tank 13, a liquid storage tank 77 is fixedly arranged on one side of the sedimentation tank 13, the other end of the liquid through pipe 75 is communicated with the upper end of the liquid storage tank 77, and a pipeline is arranged at the bottom of the liquid storage tank 77 and is communicated with the steam separation pipeline 66.
The waste rolling oil sludge enters the box body 10 through the waste oil sludge input port 11, enters the sedimentation box 13 through the cover plate 20, is in an open state and is inclined to the horizontal plane in a natural state, after the rolling oil sludge enters the sedimentation box 13 and is placed on the sedimentation box 13, after a period of time of natural sedimentation, solid-liquid preliminary separation is carried out, after separation, the four placing plate support blocks 34 are extended upwards through the four placing plate telescopic rods 33 to enable the four placing plate support blocks 34 to lift the placing plate 36, the placing plate 36 is lifted to a certain height, the cover plate 20 is closed due to the pressure effect, and meanwhile, upper liquid enters the liquid storage box 77 through the liquid through pipe 75 after being filtered by the filter screen 76.
The deoiling agent is stored above the first flow limiting plate 25 in the deoiling agent storage cylinder 24, in an initial state, the first flow limiting sphere 28 is closed to the middle of the first flow limiting plate 25 due to the weight of the first flow limiting sphere 28, the deoiling agent cannot flow downwards, when the placement plate 36 is lifted, the upper liquid drags the check valve body 22 upwards to slide the check valve body 22 into the check valve shell 21, the valve port is closed, the air pressure in the check valve body 22 is increased to lift the second flow limiting sphere 29 to close the second flow limiting plate 26, meanwhile, the second flow limiting sphere 29 is lifted to lift the sliding flow limiting rod 27 to open a through hole in the middle of the first flow limiting plate 25, and the deoiling agent flows outwards into a cavity between the first flow limiting plate 25 and the second flow limiting plate 26.
When the placing plate 36 discharges the upper liquid, the placing plate 36 moves downwards, meanwhile, the check valve body 22 is opened, the middle through hole of the second flow limiting plate 26 is opened when the second flow limiting ball 29 slides downwards, the deoiling agent flows into the rolled oil residue through the second flow limiting plate 26, the placing plate 36 inclines due to the limit of the delayed contraction telescopic rod 46 when the placing plate 36 slides downwards, the pulling rope connecting block 47 is at the higher side, the pulling rope connecting block 47 tightens the pulling rope 40 to enable the outlet sealing end cover 38 to move downwards, the oil sludge outlet 37 is opened, the rolled oil sludge flows out through the oil sludge outlet 37, the rolled oil sludge flows out to strike the vibrating rod sleeve 49, the vibrating rod sleeve 49 is pushed to rotate, one end of the vibrating rod sleeve 49 strikes the outlet sealing end cover 38 when rotating, the outlet sealing end cover 38 drives the placing plate 36 to shake, the vibrating effect can be generated when the vibrating rod sleeve 49 continuously rotates to strike the outlet sealing end cover 38, the placing plate 36 vibrates, the oil sludge on the surface of the placing plate 36 is vibrated, and the oil sludge is prevented from being deposited on the placing plate 36.
The sludge falls into the large particle separating chamber 60 through the sludge outlet 37, when the sludge above falls off completely, the motor is started to enable the centrifugal shell 51 to rotate to start centrifugal separation, the large particle filter plate 65 can limit the large particle rolling sludge, small particles can pass through the small particle rolling separation chamber 62 which is thrown outside when centrifugal separation starts, meanwhile, the large particles remain in the large particle separating chamber 60, liquid can flow into the bottom of the centrifugal shell 51 through the filter screen 64 between the large particle separating chamber 60 and the small particle separating chamber 61, enter the water pumping pipe 54, and as the spiral groove 56 enables the liquid to rise spirally, the liquid continuously flows out of the water pumping pipe 54 through the reversing valve 55 between the repeated shuttle and the large particle separating chamber 60 and the small particle separating chamber 61, simultaneously washes oil on the surfaces of the large particles, and stops after a period of time, the second rotating ring 58 drives the mixed separating single-port box 59 to rotate to enable the small particle separating chamber 61 to exchange positions, the liquid continuously rotates the centrifugal shell 51 to repeatedly wash the two sides of the large particles, and simultaneously repeatedly scrapes the large particles in the large particle separating chamber 60.
When the centrifugation is completed, the flow-limiting opening and closing plate 63 is opened, the centrifuged liquid and the upper liquid flow into the steam separation pipeline 66 together for distillation, so that oil and water are separated, when the liquid flows into the steam separation pipeline 66, the heating device 68 starts to heat so that the liquid in the steam separation pipeline 66 boils, the steam flows upwards through the oil leakage preventing hole 67 and the steam outflow wall 69, the oil leakage preventing hole 67 can prevent the oil from flowing out, the steam is liquefied through the cooling plate 70 and flows into the interlayer inside the liquid storage tank 12 along the surface of the cooling plate 70, and the oil flows into the other interlayer inside the liquid storage tank 12 through the steam separation pipeline 66.
The centrifuged oil residues slide to the outside through the residue outlet 71 for collection, and after centrifugation, the outlet closing sealing plate 74 is contracted through the outlet closing rod 73 to open the through hole in the residue outlet 71 for oil residues to fall.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes using the descriptions and the drawings of the present invention or directly or indirectly applied to other related technical fields are included in the scope of the invention.