CN212894393U

CN212894393U - Oil field drilling sludge treatment system

Info

Publication number: CN212894393U
Application number: CN202021239194.8U
Authority: CN
Inventors: 程玉全; 王林生
Original assignee: Shaanxi Yuquan Machine Manufacturing Group Co ltd
Current assignee: Shaanxi Yuquan Machine Manufacturing Group Co ltd
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2021-04-06
Anticipated expiration: 2030-06-30

Abstract

The utility model discloses an oil field drilling sludge treatment system, including deposiing clarification plant, dewatering equipment and crushing equipment, deposiing clarification plant include the sedimentation tank top install agitating unit, agitating unit include agitator motor, puddler, the puddler arrange the sedimentation tank in, adopt above-mentioned technical scheme because from sludge settling, dehydration to the production of broken water line formula that flow equalizes, avoid middle the transportation, the sedimentation equipment is because fully separate mud through vibrating device cooperation agitating unit, and is effectual to mud purifying, and work efficiency is high.

Description

Oil field drilling sludge treatment system

Technical Field

The utility model relates to a sludge treatment system especially relates to oil field drilling sludge treatment system.

Background

At present, a large amount of sludge is generated in the oil exploitation drilling process, the sludge is discharged and is difficult to stack due to high water content, and the sludge contains a mixture of malodorous toxic substances such as benzene series, phenols, polychlorinated biphenyl, dioxin, anthracene, pyrene and the like, refractory toxic and harmful substances such as radioactive nuclide and the like, so that the environment is polluted. The land filling can cause serious pollution to underground water and serious damage to natural original ecology such as grain crops, trees, vegetation and the like. The sludge can be used as an ideal brick making raw material for novel wall material sintered bricks after separation and purification treatment, the utilization rate can reach 80-90%, but no equipment is provided for directly preparing the sludge into the brick making raw material with high efficiency.

SUMMERY OF THE UTILITY MODEL

In order to solve the deficiency among the prior art, provide one kind and need not to transport, continuous-flow production, efficient oil field sludge treatment system, the utility model discloses the technical scheme who adopts is:

an oil field drilling sludge treatment system comprises a precipitation purification device, a dewatering device and a crushing device, wherein the precipitation purification device comprises a precipitation tank, a stirring device is arranged at the top of the precipitation tank, the stirring device comprises a stirring motor and a stirring rod, the stirring rod is arranged in the precipitation tank, stirring blades are arranged on the stirring rod, a vibrating device is arranged at the bottom of the precipitation tank, an overflow outlet is arranged at the edge of the top of the precipitation tank, and a mud pump is arranged at the bottom of the precipitation tank; the dewatering equipment comprises a tank body with two open ends, a centrifugal cylinder with two open ends is arranged in the tank body, the open ports at the two ends of the tank body are respectively provided with a support frame, a rotating shaft penetrating through the center of the tank body is movably arranged on the support frames, the supporting frame is also provided with a centrifugal motor which drives the rotating shaft to rotate, the centrifugal cylinder is fixed on the rotating shaft and can rotate by taking the rotating shaft as the center, a feed hopper is arranged at the high position of the opening at one end of the tank body, the slurry pump conveys slurry to the feed hopper, a discharge hopper is arranged at the lower part of the opening at the end of the tank body opposite to the feed hopper, one end of the discharge hopper extends into the tank body and is arranged between the tank body and the centrifugal cylinder, a drain pipe is arranged at the bottom of one end of the tank body close to the discharge hopper, the centrifugal cylinder comprises a frame connected with a rotating shaft, and a mesh screen is laid on the inner wall of the frame; crushing apparatus include the casing top be equipped with the feed inlet, go out the hopper and carry the mud after will dehydrating to the feed inlet casing bottom be equipped with the discharge gate casing in be equipped with drive roll and driven voller, still including drive roll pivoted drive arrangement drive roll surface circumference equipartition drive roll and driven voller have arc bead and arc recess, arc bead and arc recess interval set up, arc bead and arc recess all slope and set up, drive roll and driven voller on arc bead and arc groove engagement.

Furthermore, a separation tank is arranged on one side of the sedimentation tank, which is provided with the overflow outlet.

Further, the vibrating device is a group of vibrating rods.

Furthermore, the mesh number of the net is more than or equal to 400 meshes.

Furthermore, the rotating shaft is provided with scattering blades, and the scattering blades are close to one end of the feed hopper.

Furthermore, a nylon brush which can be contacted with the mesh screen is fixed on the inner wall of the tank body.

Furthermore, the support frame is Y-shaped, and the feed hopper is fixed on the support frame; the frame comprises a horn-shaped framework, and a support rod fixed with the rotating shaft is arranged in the framework; the tank body and the centrifugal cylinder are both obliquely arranged.

Furthermore, the shell on be equipped with the guide chute, the pivot of driven voller slide and set up on the guide chute the shell on be equipped with extrusion device, extrusion device can apply the elasticity towards the drive roll direction to the driven voller, guide chute and extrusion device set up a pair ofly in the shell bilateral symmetry.

Furthermore, the extrusion device comprises a guide sliding block, a guide sliding rod is arranged on the guide sliding block in a sliding mode, the guide sliding rod is hinged to a rotating shaft of the driven roller, and a spring is sleeved on the guide sliding rod.

Further, the driving device comprises a speed reducing mechanism and a crushing motor.

Adopt above-mentioned technical scheme because from sludge settling, dehydration to the broken water line formula production that flow equalizes, avoid the centre to transport, precipitation equipment is because fully separating mud through vibrating device cooperation agitating unit, and is good to mud purifying effect, and work efficiency is high, to each equipment: the dewatering equipment throws out mud water in the mud through centrifugal motion, so that the mud water is kept in the centrifugal cylinder, and the mesh screen with the mesh number of more than or equal to 400 is adopted, so that the excessive mud water is prevented from being lost along with the mud water, the redundant mud water can be thrown away, the mud water can be kept as much as possible, and the scattered blades have the wind drying effect, so that the mud dewatering rate can reach 70-80%, and the mud dewatering efficiency is high; because crushing equipment driven voller and drive roll adopt arc bead and arc recess meshing's form to realize breakage, and arc bead and arc recess all slope set up (have certain contained angle with the central pivot of driven voller and drive roll promptly), make the solid that is difficult to the breakage can prolong arc bead and arc recess along with crushing gradually, avoided blocking up, and make crushing effect good.

Drawings

FIG. 1 is a schematic view of the sludge treatment system of the present invention;

FIG. 2 is a schematic diagram of a precipitation purification apparatus;

FIG. 3 is a schematic view of the structure of the dewatering device of the present invention;

FIG. 4 is a sectional view of the dewatering device of the present invention;

fig. 5 is an exploded view of the dewatering device of the present invention.

FIG. 6 is a schematic view of the crushing apparatus of the present invention;

fig. 7 is a schematic view of the combined structure of the driving roll and the driven roll of the crushing device of the present invention.

Detailed Description

As shown in figure 1, the oil field drilling sludge treatment system comprises a precipitation purification device A, a dehydration device B and a crushing device C, the oil field drilling sludge is conveyed to the precipitation purification device after being discharged, the precipitation purification device purifies the sludge to discharge harmful substances such as impurities and oil stains in the sludge, clean slurry precipitated at the bottom of the precipitation purification device is pumped out and conveyed to the dehydration device, the dehydration device dehydrates the slurry with larger water content through centrifugal means and air drying, the slurry is separated from mud water, the final mud material is conveyed to the crushing device, because the mud material also contains impurities such as sand stone and the like which can not be directly used for brick making, the mud material needs to be crushed, the crushing device crushes the mud material to obtain brick making raw material, the raw material can be used for brick making, the whole process does not need to be transported, the direct flow line production is realized, the sludge purification, dehydration and crushing are sequentially completed, the production efficiency is high.

The specific structure of each device is as follows:

and (3) precipitation purification equipment:

the sedimentation purification device shown in fig. 2 comprises a sedimentation tank 1, a stirring device is arranged on the sedimentation tank 1, the stirring device comprises a stirring motor 2, a stirring rod 3 is connected on the stirring motor 2, the stirring rod 3 extends into the sedimentation tank 1, a stirring blade 4 is also arranged on the stirring rod 3, the stirring device is fixed through a cross bracket arranged on the sedimentation tank 1, a vibrating device 5 is arranged at the bottom of the sedimentation tank 1, the vibrating device 5 in the embodiment is a group of vibrating rods arranged, an overflow outlet 6 is also arranged at the top edge of the sedimentation tank 1, after drilling sludge is injected into the sedimentation tank 1, water is added into the sedimentation tank 1, the stirring rod 3 is driven by the stirring motor 2 to rotate so that the stirring blade 4 breaks up the sludge in water, meanwhile, the vibrating device 5 at the bottom can shake and break sludge blocks with larger bottom quality, or separate impurities and oil stains attached to the surface through vibration, finally, the impurities and the oil stains float on the surface of the sedimentation tank and are discharged through the overflow outlet 6, and the clean slurry deposited at the bottom of the sedimentation tank 1 is collected as a raw material for burning bricks.

In order to collect overflow water containing impurities and oil stains, a separation tank 23 is arranged on one side of the sedimentation tank 1, the separation tank 23 is positioned on one side of the sedimentation tank 1 provided with an overflow outlet 6, sewage overflowing from the overflow outlet 6 directly flows into the separation tank 23, and the sewage in the separation tank 23 can be injected into the sedimentation tank 1 again for use, so that energy is saved; meanwhile, in order to conveniently draw out the finally processed clean slurry at the bottom of the sedimentation tank 1, a slurry pump 7 is further arranged at the bottom of the sedimentation tank 1 and used for drawing out the processed slurry.

The slurry pumped by the slurry pump 7 is directly fed to the dewatering facility, and since the slurry pumped from the sedimentation and purification facility contains a large amount of sludge water, the dewatering facility performs dewatering.

The dewatering equipment shown in fig. 3 and fig. 5 comprises a tank 8, both ends of the tank 8 are open, the open positions of both ends of the tank 8 are respectively provided with a support frame 10, a centrifugal cylinder 9 is arranged in the tank 8, a rotating shaft 11 is arranged on the support frame 10, the rotating shaft 11 passes through the center of the tank 8, a centrifugal motor 12 for driving the rotating shaft 11 to rotate is also arranged on the support frame 10, the centrifugal cylinder 9 is fixed on the rotating shaft 11 to rotate along with the rotating shaft, a feed hopper 13 is arranged at the high position of the open end of one end of the tank 8, slurry pumped out by a slurry pump 7 is injected into the feed hopper 13 through a pipeline, slurry needing centrifugal dewatering flows into the centrifugal cylinder 9 through the feed hopper, a discharge hopper 14 is arranged at the low position of the open end of the tank 8 opposite to the feed hopper 13, the slurry after centrifugal dewatering flows out from the discharge hopper 14, in order to avoid the, and is placed between the tank 8 and the centrifuge tube 9, there is a drain pipe 15 on the bottom of the tank 8 near the discharge hopper 14, the mud water in the tank 8 is discharged through the drain pipe 15 after centrifugal dehydration, so there is a gap between the centrifuge tube 9 and the tank 8 for the mud water to flow, as shown in fig. 3, the centrifuge tube 9 includes a frame fixed with a rotating shaft 11, a mesh screen 9-1 is laid on the inner wall of the frame, in order to make the centrifuge tube 9 can throw out the mud water and keep the available mud when dehydrating the mud, the density of the mesh screen 9-1 is greater than or equal to 400 mesh.

The frame structure comprises a horn-shaped framework 9-2 as shown in figure 5, a support rod 9-3 is arranged in the framework 9-2, and the frame is fixed on a rotating shaft 11 through the support rod 9-3.

The support frame 10 shown in fig. 1 is Y-shaped to facilitate feeding and discharging, wherein a feed hopper 13 is fixed to the frame.

As the mud is adhered to the mesh screen by the centrifugal force in the working process of the centrifugal cylinder 9, the mesh screen is blocked, and the mud is not beneficial to the outflow of the mud, as shown in the figures 4 and 5, the nylon brush 25 is arranged on the inner wall of the tank body 8, and the surface of the centrifugal cylinder 9 is washed by the nylon brush 25 when rotating, so that the mud adhered to the mesh screen 9-1 is separated, and the mud can be ensured to flow out smoothly.

As shown in figures 1 and 2, a breaking blade 24 is further arranged on the rotating shaft 11, the breaking blade 24 is close to one end of the feed hopper 13, mud enters the centrifugal cylinder 9 and then passes through the breaking blade 24, the rotating blade can break up the mud and dry the mud by wind power, the mud is prevented from being excessively concentrated and not beneficial to dehydration, and the mud dehydration rate can reach 70% -80%.

In order to facilitate drainage and discharge, the tank body 8 and the centrifugal cylinder are obliquely arranged, so that slurry and muddy water can flow from the feeding end to the discharging end under the action of gravity.

The dehydrated slurry is discharged from a discharge hole and directly conveyed to crushing equipment, and the crushing device shown in fig. 6 comprises a shell 17, wherein a feed hole 18 and a discharge hole are formed in the shell 17, the feed hole 18 is formed in the top, the discharge hole is formed in the bottom, a driving roller 19 and a driven roller 20 are arranged in the shell 17, the driving roller 19 rotates through a driving device arranged outside the shell 17, and the driving device comprises a speed reducing mechanism 30 and a crushing motor 31.

As shown in fig. 7, arc-shaped protruding ridges 21 and arc-shaped grooves 22 are uniformly distributed on the surface circumferences of the driving roller 19 and the driven roller 20, the arc-shaped protruding ridges 21 and the arc-shaped grooves 22 are arranged at intervals, the arc-shaped grooves 22 and the arc-shaped protruding ridges 21 are arranged in an inclined manner (namely, the arc-shaped grooves 22 and the arc-shaped protruding ridges 21 are arranged at included angles with the axes of the driving roller 19 and the driven roller 20), the arc-shaped grooves 22 and the arc-shaped protruding ridges 21 can be engaged with each other when the driving roller 19 and the driven roller 20 work, solid waste materials are engaged with each other and extruded and crushed by the driving roller 19 and the driven roller 20, and the arc-shaped protruding ridges 21 and the arc-shaped grooves 22 are arranged in an inclined manner, so that the solid waste materials.

In order to make the driving roller 19 and the driven roller 20 have a certain extrusion force on the solid waste material to achieve the effect of crushing, as shown in fig. 1, a guide chute 26 is arranged on a casing 17, a rotating shaft of the driven roller 20 is slidably arranged on the guide chute 26, an extrusion device is arranged on the casing 17, the extrusion device can apply an elastic force towards the driving roller 19 to the driven roller 20, in order to make the two ends of the driven roller 20 evenly stressed, the guide chute 26 and the extrusion device are symmetrically arranged in a pair on two sides of the casing 17, the extrusion device comprises a guide slider 27, a guide sliding rod 28 is slidably arranged on the guide slider 27, the guide sliding rod 28 is hinged on the rotating shaft of the driven roller 20, a spring 29 is sleeved on the guide sliding rod 28, the driven roller 20 is enabled to move towards the driving roller 19 by the elastic force applied by the spring 29 during operation, so that the driving roller 19 and the driven roller, can guarantee broken dynamics promptly, can avoid the rigid fixation to damage equipment again.

Claims

1. The utility model provides an oil field drilling sludge treatment system, includes sediment clarification plant, dewatering equipment and crushing equipment, its characterized in that: the sedimentation and purification equipment comprises a sedimentation tank (1), wherein a stirring device is arranged at the top of the sedimentation tank (1), the stirring device comprises a stirring motor (2) and a stirring rod (3), the stirring rod (3) is arranged in the sedimentation tank (1), a stirring blade (4) is arranged on the stirring rod (3), a vibrating device (5) is arranged at the bottom of the sedimentation tank (1), an overflow outlet (6) is arranged at the edge of the top of the sedimentation tank (1), and a mud pump (7) is arranged at the bottom of the sedimentation tank (1); the dewatering equipment comprises a tank body (8) with two open ends, a centrifugal cylinder (9) with two open ends is arranged in the tank body (8), support frames (10) are respectively arranged at the open ends of the two ends of the tank body (8), a rotating shaft (11) penetrating through the center of the tank body (8) is movably arranged on the support frames (10), a centrifugal motor (12) driving the rotating shaft (11) to rotate is further arranged on the support frames (10), the centrifugal cylinder (9) is fixed on the rotating shaft (11) and can rotate by taking the rotating shaft (11) as the center, a feed hopper (13) is arranged at the high position with one open end of the tank body (8), a slurry pump (7) conveys slurry to the feed hopper (13), a discharge hopper (14) is arranged at the low position with the opposite open end of the tank body (8) and the feed hopper (13), one end of the discharge hopper (14) extends into the tank body (8) and is arranged between the tank body (8) and the centrifugal cylinder (9), a drain pipe (15) is arranged at the bottom of one end, close to the discharge hopper (14), of the tank body (8), the centrifugal cylinder (9) comprises a frame connected with the rotating shaft (11), and a mesh screen (9-1) is laid on the inner wall of the frame; crushing apparatus include casing (17) top be equipped with feed inlet (18), go out hopper (14) and carry the mud after will dewatering to feed inlet (18) casing (17) bottom be equipped with the discharge gate casing (17) in be equipped with drive roll (19) and driven voller (20), still including drive roll (19) pivoted drive arrangement drive roll (19) and driven voller (20) surface circumference equipartition have arc bead (21) and arc recess (22), arc bead (21) and arc recess (22) interval set up, arc bead (21) and arc recess (22) all slope and set up, drive roll (19) and driven voller (20) go up arc bead (21) and arc recess (22) meshing.

2. The oilfield drilling sludge treatment system of claim 1, wherein: a separation tank (23) is arranged on one side of the sedimentation tank (1) provided with the overflow outlet (6).

3. The oilfield drilling sludge treatment system of claim 1, wherein: the vibrating device (5) is a group of vibrating rods.

4. The oilfield drilling sludge treatment system of claim 1, wherein: the mesh number of the mesh screen (9-1) is more than or equal to 400 meshes.

5. The oilfield drilling sludge treatment system of claim 1, wherein: the rotary shaft (11) is provided with a scattering blade (24), and the scattering blade (24) is close to one end of the feed hopper (13).

6. The oilfield drilling sludge treatment system of claim 1, 4 or 5, wherein: a nylon brush (25) which can be contacted with the mesh screen (9-1) is fixed on the inner wall of the tank body (8).

7. The oilfield drilling sludge treatment system of claim 1, wherein: the support frame (10) is Y-shaped, and the feed hopper (13) is fixed on the support frame (10); the frame comprises a horn-shaped framework (9-2), and a support rod (9-3) fixed with the rotating shaft (11) is arranged in the framework (9-2); the tank body (8) and the centrifugal cylinder (9) are both obliquely arranged.

8. The oilfield drilling sludge treatment system of claim 1, wherein: the casing (17) on be equipped with guide chute (26), the pivot of driven voller (20) slide and set up on guide chute (26) casing (17) on be equipped with extrusion device, extrusion device can apply the elasticity towards drive roll (19) direction to driven voller (20), guide chute (26) and extrusion device set up a pair ofly in casing (17) bilateral symmetry.

9. The oilfield drilling sludge treatment system of claim 8, wherein: extrusion device including leading slider (27) lead slider (27) go up sliding set with and lead slide bar (28), lead slide bar (28) articulate in the pivot of driven voller (20) lead slide bar (28) on the cover be equipped with spring (29).

10. The oilfield drilling sludge treatment system of claim 1, wherein: the driving device comprises a speed reducing mechanism (30) and a crushing motor (31).